KR20230043581A - Dust seperation device and cleaner having the same - Google Patents

Abstract

Provided are a dust separation device and a cleaner having the same. The dust seperation device comprises: a dust collection chamber which is provided to collect dust in the air introduced through an air inlet port; a rotating body which rotates inside the dust collection chamber, and includes a blocking member that is formed to block dust and allow air to flow in; a motor which rotates the rotating body; a fixed body which is disposed to be spaced apart from the rotating body, and supports the motor; and a sealing member which seals at least a portion of a gap part formed between the rotating body and the fixed body, and includes a brush that comes in contact with at least one of the rotating body and the fixed body.

Description

Dust separation device and cleaner including the same {DUST SEPERATION DEVICE AND CLEANER HAVING THE SAME}

The present disclosure relates to a dust separation device and a vacuum cleaner including the same, and more particularly, to a dust separation device that separates dust through rotation of a rotating body made of a grill in order to prevent dust from being attached to a grill from entering through an air inlet, and It relates to a cleaner comprising the same.

BACKGROUND ART A vacuum cleaner is a device that cleans a room by removing rubbish, and a vacuum cleaner is generally used at home. A vacuum cleaner sucks in air by using a suction force of a fan motor unit, and then separates dirt from the sucked air with a device such as a filter to clean the room. These vacuum cleaners are of a canister type and an upright type. Recently, a robot vacuum cleaner that performs cleaning work by autonomously traveling in a cleaning area without user manipulation and sucking in dirt such as dust from the surface to be cleaned. is becoming popular.

The vacuum cleaner includes a dust collecting device therein so that dirt contained in sucked air is filtered out by a predetermined filtering device. The filtering device for filtering dirt in the dust collector includes a porous filter device in which dirt is forcibly filtered while air passes through the porous filter, and a cyclone type dust collector in which dirt is filtered during a cyclone flow of air.

The vacuum cleaner is unsanitary and cumbersome to use because dirt, such as hair or animal hair, gets tangled in the dust collecting device in the process of filtering dirt, and the user has to separate these dirt directly from the dust collecting device.

One aspect of the present disclosure provides a dust separation device including a rotating body generating centrifugal force for separating dust.

Another aspect of the present disclosure provides a dust separation device including an improved structure for sealing a gap between a rotating body and a fixture for fixing a motor and reducing friction due to rotation of the rotating body.

A dust separation device according to an example of the present disclosure includes a dust collecting chamber provided to collect dust in the air introduced from an air inlet, and a blocking member rotatable inside the dust collecting chamber and formed to block dust and allow air to flow in. A rotating body including a rotating body, a motor rotating the rotating body, a stationary body disposed to be spaced apart from the rotating body and supporting the motor, and a gap formed between the rotating body and the stationary body to prevent dust from entering the gap Sealing at least a portion of the unit and may include a sealing member including a brush contacting at least one of the rotating body and the stationary body.

The sealing member may seal a gap inlet through which air flows into the gap part.

The blocking member is provided along an outer circumference of the rotating body, and the rotating body may further include a rotating case supporting the blocking member.

The rotating case may include a rotating wall provided between the blocking member and the fixed body, and the sealing member may seal the gap formed between the rotating wall and the fixed body.

The fixed body may include a guide portion for guiding rotation of the rotating body, the rotating body may include a sliding portion rotating along the guide portion, and the gap portion may be formed between the guide portion and the sliding portion.

The guide part and the slide part may be formed in a ring shape, and the sealing member may be formed in a ring shape along the guide part and the slide part.

The guide part may include a guide groove concavely formed to accommodate at least a portion of the slide part, the slide part may rotate along the guide groove, and the sealing member may be provided in the guide groove.

The sealing member may further include a base supporting the brush.

The base may be positioned on the fixture.

The blocking member may include a grill in which a plurality of holes are formed.

The brush may be disposed in a direction parallel to a rotation axis direction of the rotation body.

A filter disposed downstream of the blocking member on an air path through which air flows from the air inlet may be further included.

The filter may be fixed to the fixture.

The brush may include a carbon fiber material.

The dust collecting chamber may include a scattering prevention rib formed to prevent dust accommodated in the dust collecting chamber from scattering.

A cleaner according to an example of the present disclosure includes a cleaner body including an intake port, an exhaust port, and a suction motor, and a dust separation device provided in the cleaner body, wherein the dust separation device collects dust in the air introduced from the air inlet port. A dust collecting chamber provided so as to be rotatable inside the dust collecting chamber, a rotating body including a blocking member formed to block dust and allow air to flow in, a motor rotating the rotating body, and disposed to be spaced apart from the rotating body. A stationary body supporting the motor, and a brush that seals at least a portion of the gap portion so that dust does not flow into the gap portion formed between the rotating body and the stationary body, and which is in contact with at least one of the rotating body and the stationary body. It may include a sealing member comprising a.

The suction motor may be positioned downstream of the dust separator on an air passage through which air flows from the air inlet.

The cleaner body may further include an exhaust filter between the dust separator and the exhaust port.

A dust separation device according to another example of the present disclosure includes an air inlet and an air outlet, and includes a dust collecting case having a dust collecting chamber for accommodating dust formed therein, a motor provided inside the dust collecting case, and a fixed wall, and includes the motor. A fixed body for supporting, a blocking member rotatable by the motor, formed to block dust and allow air to flow in, and a rotating wall that rotates relative to the fixed wall and is disposed to be spaced apart from the fixed wall, A rotating body including a rotating case supporting the blocking member, sealing at least a portion of the gap portion so that dust does not flow into the gap portion provided between the rotating wall and the fixed wall, and at least one of the rotating wall and the fixed wall It may include a sealing member in contact with.

The sealing member may include a brush contacting at least one of the rotating wall and the fixed wall.

According to one aspect of the present disclosure, the dust separation device may improve dust separation efficiency by separating dust adhering to the grill of the rotating body using centrifugal force according to rotation of the rotating body.

According to another aspect of the present disclosure, the dust separation device prevents dust from entering the gap by sealing the gap between the rotary body and the stationary body with a sealing member including a brush, and separates dust by reducing frictional force caused by rotation of the rotary body The durability of the device can be improved.

1 is a diagram illustrating a cleaner according to an embodiment of the present disclosure.
FIG. 2 is a view showing a state in which a dust collection case and a rotating body are separated from the vacuum cleaner of FIG. 1 .
FIG. 3 is a view showing a cross section taken along the line A-A' indicated in FIG. 1;
4 is a diagram illustrating a dust separation device according to an embodiment of the present disclosure.
FIG. 5 is a view showing a cross section taken along the line BB' indicated in FIG. 4 .
6 is a cross-sectional view showing a state in which the dust separation device of FIG. 4 is disassembled.
FIG. 7 is a diagram illustrating air flow in the dust separation device of FIG. 3 .
8 is a view showing a state in which dust is separated from a blocking member according to an embodiment of the present disclosure.
FIG. 9 is an enlarged view of C in FIG. 5 .
10 is a view showing a sealing member according to an embodiment of the present disclosure.
11 is an exploded perspective view in which the sealing member of FIG. 10 is disassembled.
FIG. 12 is an enlarged view of D in FIG. 11 .
13 is a cross-sectional view showing a sealing member according to another embodiment of the present disclosure.
14 is a cross-sectional view showing a sealing member according to another embodiment of the present disclosure.

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

In addition, the same reference numerals or numerals presented in each drawing in this specification indicate parts or components that perform substantially the same function.

In addition, terms used in this specification are used to describe embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It does not preclude in advance the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term "and/or" includes any combination of a plurality of related listed items or any of a plurality of related listed items.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

In addition, although a stick-type vacuum cleaner, which is a kind of vacuum cleaner, will be described as an example for convenience of explanation, the configuration of the present disclosure is not limited to the stick-type cleaner. For example, the configuration of the present disclosure may be applied to a canister-type cleaner, a robot cleaner, and the like. In addition, although a vacuum cleaner using only a porous filtering method is taken as an example in the following, it can also be applied to a vacuum cleaner using a cyclone dust collection method. In addition, it can be applied to any home appliance that needs to separate dust from a filter, such as air conditioners and dryers.

1 is a diagram illustrating a cleaner according to an embodiment of the present invention. FIG. 2 is a view showing a state in which a dust collection case and a rotating body are separated from the vacuum cleaner of FIG. 1 . FIG. 3 is a view showing a cross section taken along the line A-A' indicated in FIG. 1;

1 to 3, the vacuum cleaner 1 is provided with a suction head 20 provided to suck foreign substances such as dust from a surface to be cleaned by air suction force, and foreign substances sucked through the suction head 20 are collected. It may include a cleaner body 10 to be.

The cleaner 1 may include a suction pipe 30 provided to connect between the suction head 20 and the cleaner body 10 .

The suction head 20 includes a suction brush (not shown), and is in close contact with the cleaning surface to suck air and foreign substances from the cleaning surface. The suction head 20 may be rotatably coupled to the suction pipe 30 .

The suction pipe 30 may be formed of a pipe having a predetermined rigidity or a flexible hose. The suction pipe 30 may transfer the suction force generated through the suction motor 13 to the suction head 20 and guide foreign substances such as air and dust sucked through the suction head 20 to the cleaner body 10. .

The cleaner body 10 includes a suction motor 13, which is a suction force generating device that generates suction force on the surface to be cleaned, a dust separator 100 that separates and collects dust from sucked air, a handle 40, and a suction motor. (13) may include a battery 50 capable of supplying power.

The suction motor 13 performs a function of converting electrical force into mechanical rotational force. In order to perform the above function, the suction motor 13 penetrates the suction stator 13b having a coil, the suction rotor 13a which has magnetism and is rotatable by electromagnetic force, and the suction rotor 13a and is rotatably provided. It may include a rotor shaft (13c) to be. A fan 14 connected to the suction motor 13 by the rotor shaft 13c of the suction motor 13 and rotating may be provided inside the cleaner body 10 .

In FIG. 3, the suction motor 13 is shown as being of an inner-rotor type in which the suction rotor 13a is located inside the suction stator 13b, but is not limited thereto.

The cleaner body 10 may include an intake port 11a through which air and foreign substances are sucked into the cleaner body 10 and an exhaust port 12a through which air and foreign substances are discharged to the outside of the cleaner body 10 . The cleaner body 10 may include a suction duct 11 communicating with one end of the suction pipe 30, and one end connected to one end of the suction pipe 30 among both ends of the suction duct 11 has an intake port 11a. can be formed Accordingly, air and foreign matter may be introduced into the cleaner body 10 through the intake port 11a of the intake duct 11 . However, it is not limited thereto, and the cleaner body does not include a duct structure such as the suction duct 11, and the intake port 11a and the suction pipe 30 may be directly connected.

The cleaner body 10 may include an exhaust case 12 , and an exhaust port 12a may be formed on the exhaust case 12 .

A dust separation device 100 may be provided in the cleaner body 10 . The air introduced into the cleaner body 10 through the air inlet 11 is introduced into the dust separator 100 through the air inlet 112 . The dust separation device 100 includes a dust collecting case 110 forming a dust collecting chamber 111 in which dust is accommodated, a rotating body 120 accommodated inside the dust collecting case 110, and a motor rotating the rotating body 120. (140), a fixed body (130) supporting the motor (140) may be included. The rotating body 120 may include a blocking member 125 formed to block dust and allow air to flow in. The blocking member 125 may include a grill 125a having a plurality of holes. Dust in the air introduced into the cleaner body 10 through the intake port 11 is separated from the air by the dust separator 100 and collected in the dust collection chamber 111 formed inside the dust collection case 110. do. The air from which dust is separated by the dust separation device 100 is discharged to the outside of the dust separation device 100 through the air outlet 113 .

In order to allow air to flow from the air inlet 112 to the air outlet 113, the suction motor 13 is located downstream of the dust separation device 100 on the air passage through which the air flows from the air inlet 112. can do. The configuration and operation of the dust separation device 100 will be described later.

The air discharged to the outside of the dust separator 100 through the air discharge port 113 may pass through the suction motor 13 and the exhaust port 12a sequentially and be discharged to the outside of the cleaner body 10 . The cleaner body 10 includes a dust separation device 100 and an exhaust port 12a to filter dust in the air before the air inside the cleaner body 10 is discharged to the outside of the cleaner body 10 through the exhaust port 12a. ) may include an exhaust filter 15 between them. The exhaust filter 15 may be a HEPA filter.

The dust collecting case 110 may be provided to be detachably coupled to the cleaner body 10 . A coupling button 16 provided to separate the dust collection case 110 from the cleaner body 10 may be provided on the cleaner body 10 . The coupling button 16 may be located between the exhaust case 12 and the dust collection case 110 . When the user presses the coupling button 16, the dust collection case 110 is separated from the cleaner body 10, and the user can remove dust accommodated in the dust collection chamber 111 in the dust collection case 110. However, it is not limited thereto, and the dust collection case 110 may be separated in various ways. In addition, the dust collection case 110 may remove dust collected in the dust collection chamber 111 by including a separate dust discharge door (not shown).

As shown in FIG. 2 , the rotating body 120 may be detachably coupled to the stationary body 130 by the bearing 170 and the first magnetic body 181 and the second magnetic body 121d. Accordingly, the user can easily clean the rotating body 120 and the filter 190 .

With this configuration, when a suction force is generated by the suction motor 13 and the fan 14 inside the cleaner body 10, air and dust in the air may be sucked into the suction head 20. Air and dust sucked into the suction head 20 are sucked into the cleaner body 10 through the suction pipe 30 and the suction port 11a. Air introduced into the cleaner body 10 is introduced into the dust separator 100 through the air inlet 112, and dust in the air may be separated from the air. The dust separated from the air is accommodated in the dust collection chamber 111 formed inside the dust collection case 110, passes through the blocking member 125 of the rotating body 120, and passes through the air outlet 113 to the dust separation device 100. discharged to the outside The air discharged to the outside of the dust separation device 100 passes through the exhaust filter 15 and is filtered once more, and may be exhausted to the outside of the cleaner body 10 through the exhaust port 12a.

4 is a diagram illustrating a dust separation device according to an embodiment of the present disclosure. FIG. 5 is a view showing a cross section taken along the line BB' indicated in FIG. 4 . 6 is a cross-sectional view showing a state in which the dust separation device of FIG. 4 is disassembled. FIG. 7 is a diagram illustrating air flow in the dust separation device of FIG. 3 . 8 is a view showing a state in which dust is separated from a blocking member according to an embodiment of the present disclosure. FIG. 9 is an enlarged view of C in FIG. 5 .

4 to 9, the dust separation device 100 includes a dust collection chamber 111, a rotating body 120, a motor 140 rotating the rotating body 120, and a fixture supporting the motor 140. (130).

The dust separation device 100 may include a dust collection case 110 including an air inlet 112 and an air outlet 113 . The inside of the dust collection case 110 may include a dust collection chamber 111 provided to collect dust in the air introduced from the air inlet 112 . The dust collecting case 110 may be provided in a cylindrical shape, but is not limited thereto and may have various shapes as long as a space capable of accommodating dust is formed therein.

As described above, the dust collection case 110 may be coupled to the cleaner body 10 so as to be detachable from the cleaner body 10 so that the user can easily remove dust collected in the dust collection chamber 111 .

The air inlet 112 may be provided on the dust collecting case 110 to allow air to flow into the dust separation device 100 . The air inlet 112 may be located above the blocking member 125 of the rotating body 120 to be described later. Accordingly, the dust introduced into the dust separation device 100 through the air inlet 112 may descend and proceed by gravity to approach the blocking member 125 . However, it is not limited thereto, and the air inlets 112 may be variously arranged in consideration of an arrangement between components of the cleaner 1.

The air outlet 113 may be provided so that air inside the dust separation device 100 can be discharged to the outside of the dust separation device 100 . The air outlet 113 may be formed by the dust collecting case 110 or by the fixed body 130 . The air outlet 113 may be disposed upstream of the air flow from the suction motor 13 and the fan 14 of the cleaner body 10 to receive suction force. Accordingly, the dust in the air introduced into the dust separation device 100 through the air inlet 112 is separated from the air by the blocking member 125, and the dust separation device 100 through the air outlet 113. can be discharged to the outside.

The dust collecting chamber 111 may include a scattering prevention rib 114 formed to prevent dust accommodated in the dust collecting chamber 111 from scattering. Specifically, the anti-scattering rib 114 may be provided on the lower surface of the dust collecting case 110 . However, it is not limited thereto, and the scattering prevention ribs 114 may be provided in various positions within the dust collecting chamber 111 . The scattering prevention ribs 114 may be provided singularly, or may be provided in plural as needed. As the anti-scattering rib 114 is included in the dust collecting chamber 111, dust accommodated in the dust collecting chamber 111 is prevented from scattering despite the vortex of the air inside the dust collecting chamber 111 generated while the rotating body 120 rotates. It can be prevented.

The motor 140 rotates the rotating body 120 to separate dust adhering to the blocking member 125 or the grill 125a by centrifugal force caused by the rotation of the rotating body 120 .

As shown in FIG. 5 , the motor 140 may be of an outer-rotor type. The motor 140 includes a stator 142, a rotor 141 surrounding the stator 142 from the outside, and a shaft 143 that rotates with the rotor 141 and passes through the center of the rotor 141 and the stator 142. can include When power is applied to the motor 140, the rotor 141 and the shaft 143 rotate, and rotational force can be transmitted to the rotating body 120. The motor 140 may include a motor housing (not shown). However, it is not limited thereto, and the motor 140 may be formed in various shapes, and may be of an inner-rotor type like the suction motor 13 described above.

The motor 140 may be supported by the fixture 130 . Specifically, the fixture 130 may support the motor 140 by including the motor support member 135 . The motor support member 135 fixes the stator 142 of the motor 140 and may be formed so that the shaft 143 passes therethrough. Accordingly, the motor 140 can stably transmit rotational force to the rotating body 120 at a fixed position.

The fixture 130 may include a wire accommodating portion 136 that is connected to the motor and accommodates a wire (not shown) for applying power to the motor. Specifically, the electric wire accommodating portion 136 may be provided on the motor support member 135 . Wires accommodated in the wire accommodating portion 136 may be electrically connected to the battery 50 . Accordingly, the motor 140 may receive power from the battery 50 described above. As the wire accommodating portion 136 is provided on the motor support member 135, wires for applying power to the motor 140 can be prevented from being entangled with each other and can be protected from damage. However, it is not limited thereto, and the wire receiving portion 136 may be disposed on various configurations, and the fixture 130 may not include the wire receiving portion 136.

In the dust separation device 100 according to an embodiment of the present disclosure, the rotating body 120 may be rotated by the motor 140 generating rotational force using electromagnetic force. The motor 140 may have a rotational speed of 4000 RPM or more. Accordingly, the motor 140 can rotate the rotating body 120 at high speed, and can improve the dust separation efficiency of the dust separation device 100 compared to a method in which the grill is rotated through air flow.

The fixture 130 is a component that supports the motor 140 . As described above, the fixed body 140 may support the motor 140 by the motor support member 135 .

The fixed body 130 may be disposed to be spaced apart from the rotating body 120 . The rotating body 120 is relatively rotated with respect to the fixed body 130. When the fixed body 130 and the rotating body 120 are placed in contact with each other, wear on the fixed body 130 and the rotating body 120 may occur, resulting in a shortened lifespan. Therefore, as the fixed body 130 is arranged to be spaced apart from the rotating body 120, friction between the rotating body 130 and the rotating body 120 according to the rotation of the rotating body 120 can be prevented. As the stationary body 130 is disposed to be spaced apart from the rotating body 120, a gap portion 150 to be described below may be formed between the stationary body 130 and the rotating body 120.

The fixture 130 may include a guide part 133 for guiding rotation of the rotating body 120 . The rotating body 120 may rotate along the guide portion 133 of the fixed body 130 including the slide portion 123 . The guide part 133 may be formed in a ring shape, and the slide part 123 may also be formed in a ring shape corresponding thereto. In addition, the guide part 133 or the slide part 123 may be formed in a ring shape having a constant curvature. However, it is not limited thereto, and the guide part 133 and the slide part 123 may be formed in various shapes, and may be formed in an arc shape having a constant curvature.

The guide part 133 may include a guide groove 134 concavely formed to accommodate at least a portion of the slide part 123 . Correspondingly, the slide part 123 may be formed in a convex shape to be accommodated in the guide groove 134 . Accordingly, the slide unit 123 may rotate along the guide groove 134 . The sealing member 160 to be described later may be provided in the guide groove 134 to seal at least a portion of the gap portion 150 . However, the shape of the guide part 133 and the slide part 123 is not limited thereto, and the slide part 123 includes a groove formed concavely to accommodate the guide part 133, and the guide part 133 is Correspondingly, it may be formed concavely.

As the guide part 133 and the slide part 123 are provided on the fixed body 130 and the rotating body 120, respectively, the rotating body 120 can rotate stably. However, it is not limited thereto, and a separate guide part 133 and a slide part 123 may not be provided in the fixed body 130 and the rotating body 120 .

The rotating body 120 may be provided inside the dust collecting chamber 111 . The rotating body 120 may be connected to the motor 140 to receive rotational force from the motor 140 . Accordingly, the rotating body 120 is provided to be rotatable inside the dust collecting chamber 111, and dust adhering to the blocking member 125 can be easily separated by using centrifugal force caused by the rotation. However, it is not limited thereto, and the rotating body 120 may include a separate fan (not shown) without the motor 140 to be rotatable by receiving rotational force due to the flow of air.

Rotator 120 may be provided in a cylindrical shape. In particular, the blocking member 125 of the rotating body 120 may be provided along the outer circumference of the cylindrical rotating body 120 . In this case, the blocking member 125 may be provided in a cylindrical shape. When the cylindrical rotating body 120 rotates, centrifugal force is generated in the radial direction around the axis of rotation (X-axis) of the rotating body 120, so that the centrifugal force can act more strongly on dust adhering to the blocking member 125. and can improve dust separation efficiency. However, it is not limited thereto, and the rotating body 120 may be formed in various shapes. For example, the rotating body 120 may have a hemispherical shape.

The dust separation device 100 may include a rotation center body 180 disposed inside the rotation body 120 . The rotation center body 180 may connect between the rotation body 120 and the motor 140 . The rotation center body 180 is provided at the center of the rotation body 120 and may serve as a rotation axis (X axis) of the rotation body 120 . Accordingly, even if the rotating body 120 is rotated at high speed by the motor 140, it can rotate stably while maintaining its center.

The rotation center body 180 may include a motor coupling part 183 so that it is coupled to the rotor 141 of the motor 140 and rotates together. Specifically, the motor coupling part 183 may be provided at one end of the rotation center body 180 . The rotation center body 180 and the motor coupler 183 may be integrally formed, but are not limited thereto. The motor coupling part 183 may be attached to the rotor 141 using an adhesive, solder, or the like. Accordingly, the rotating center 180 can be stably coupled to the motor 140 to receive rotational force from the motor 140 . However, it is not limited thereto, and the rotational center 180 may be directly connected to the shaft 143 of the motor 140 to receive rotational force.

A coupling part 182 for coupling the rotation center body 180 and a second rotation case 121b to be described below may be provided at the other end opposite to one end of the rotation center body 180 where the motor coupling unit 183 is provided. Accordingly, the rotational force of the motor 140 is sequentially transmitted to the second rotating case 121b via the motor coupling part 183, the rotating center body 180, and the coupling unit 182, and the whole rotating body 120 rotates. can induce However, it is not limited thereto, and even if the rotating center 180 does not exist separately, the rotating body 120 may be directly connected to the motor 140 to receive rotational force.

A first magnetic body 181 may be provided on the side of the rotating center 180 based on the coupling part 182 and a second magnetic body 121d may be provided on the side of the second rotating case 121b. The first magnetic body 181 and the second magnetic body 121d may be coupled to the rotation center 180 and the second rotation case 121b, respectively. The first magnetic body 181 and the second magnetic body 121d have magnetism so that the relative position of the rotation center body 180 with respect to the second rotation case 121b can be maintained constant. Accordingly, the rotation center body 180 can maintain a stable position even when rotating at high speed.

Both the first magnetic body 181 and the second magnetic body 121d may include magnets. Accordingly, the second rotation case 121b and the rotation center body 180 may be detachably coupled. However, it is not limited thereto, and the first magnetic body 181 and the second magnetic body 121d include various materials, such as the first magnetic body 181 including a magnet and the second magnetic body 121d including a metal such as iron. can be configured.

The rotating body 120 may include a blocking member 125 formed to block dust and allow air to flow in. The blocking member 125 may filter air introduced into the dust separation device 100 through the air inlet 112 so that dust is collected in the dust collection chamber 111 . The blocking member 125 may pass air from which dust is removed by the blocking member 125 so that the air is discharged to the outside of the dust separation device 100 through the air outlet 113 .

The blocking member 125 may be provided along the outer circumference of the rotating body 120 . Specifically, the blocking member 125 may form a side surface of the rotating body 120 . Accordingly, centrifugal force may act more strongly on the dust adhering to the blocking member 125, and dust separation efficiency may be improved. However, it is not limited thereto, and the blocking member 125 may be formed in various ways according to the shape of the rotating body 120 . For example, the blocking member 125 may be formed on the bottom surface of the rotating body 120 or may be formed in a hemispherical shape.

The blocking member 125 of the rotating body 120 may include a grill 125a in which a plurality of holes are formed. The grill 125a may be formed of a metal material. Accordingly, even when the rotating body 120 rotates at high speed, it is possible to prevent damage to the grill 125a. However, it is not limited thereto, and the blocking member 125 itself may be a filter (not shown) such as a HEPA filter.

The rotating body 120 may include a rotating case 121 supporting the blocking member 125 . The rotating case 121 may include a first rotating case 121a and a second rotating case 121b. The first rotating case 121a may be formed to support the blocking member 125 at the side of the rotating body 120 . The second rotating case 121b may be formed to support the blocking member 125 by forming a lower surface of the rotating body 120 . The second rotating case 121b may be coupled to the second magnet 127b as described above.

The first rotation case 121a and the second rotation case 121b may be coupled by a case coupling member 121c. As shown in FIG. 5 , the first rotation case 121a and the second rotation case 121b may be screwed together by a case coupling member 121c. However, it is not limited thereto, and the first rotation case 121a and the second rotation case 121b may be hook-coupled or integrally injection-molded.

As described above, the rotating body 120 may include the sliding portion 123 and rotate along the guide portion 133 of the fixed body 130 . Specifically, the slide unit 123 may be included in the rotating case 121 and may be included in the first rotating case 121a.

The slide part 123 may be formed in a ring shape. However, it is not limited thereto, and the slide part 123 may be formed in various shapes, and may be formed in an arc shape having a constant curvature.

The slide part 123 may be formed in a convex shape to be accommodated in the guide groove 134 . Accordingly, the slide unit 123 may rotate along the guide groove 134 . However, it is not limited thereto, and the slide part 123 may be formed in a concave shape to accommodate the guide part 133 .

The rotating case 121 of the rotating body 120 may include a rotating wall 122 . Specifically, the rotating wall 122 may be included in the first rotating case 121a to be provided between the blocking member 125 and the fixture 130 . The gap portion 150 may be formed between the rotating wall 122 and the fixed body 130 and may be sealed by the sealing member 160 .

(132)를 포함할 수 있다. 갭부(150)는 회전벽(122)과 고정벽(132) 사이에 형성될 수 있으며, 실링부재(160)에 의해 실링될 수 있다. 고정벽(132) 상에는 후술하는 실링부재(160)의 베이스(162)가 장착될 수 있도록 형성되는 베이스 장착부(135)가 마련될 수 있다.The fixed body 130 corresponds to the rotating wall 122 of the rotating body 120 and is disposed to be spaced apart from the rotating wall 120."

(132). The gap portion 150 may be formed between the rotating wall 122 and the fixed wall 132 and may be sealed by the sealing member 160 . A base mounting portion 135 may be provided on the fixing wall 132 to mount a base 162 of the sealing member 160 to be described later.

The rotating wall 122 may be provided on the slide part 123 . Correspondingly, the fixing wall 132 may be provided on the guide part 133 and may form a guide groove 134 . In this case, the gap part 150 may be formed in a curved shape between the slide part 123 and the guide part 133 . In another aspect, the gap portion 150 may be formed to be curved in the guide groove 134 . Accordingly, it is possible to prevent dust from being introduced into the rotating body 120 . However, it is not limited thereto, and the gap portion 150 may be formed in various ways according to the arrangement of the rotating wall 122 and the fixed wall 132 .

A bearing 170 connecting the rotating body 120 and the fixed body 130 may be provided inside the rotating body 120 . Specifically, the bearing 170 may connect the fixed body 130 and the second rotating case 121b.

The rotating body 120 and the fixed body 130 may be provided to be separable from each other so that the user can easily clean the rotating body 120 . As shown in FIG. 5, the first rotation case 121a and the second rotation case 121b are coupled by a case coupling member 121c, and the second rotation case 121b uses a hook structure to support the bearing ( 170) may be detachably coupled. In addition, a first magnetic body 181 is provided in the rotating center 180 coupled to the motor 140 supported by the stationary body 130, and a second magnetic body 121d is provided in the second rotating case 121b to rotate. The whole 120 may be detachably coupled to the fixture 130 . However, it is not limited thereto, and the rotating body 120 and the stationary body 130 may be provided to be separable from each other in various ways.

The dust separation device may include a filter 190 . A filter may be provided inside the rotating body 120 . That is, the filter 190 may be disposed downstream of the blocking member 125 on a flow path through which air flows from the air inlet 112 . Accordingly, dust that has not yet been filtered by the blocking member 125 may be filtered again by the filter 190 . The filter 190 may be a HEPA filter.

The filter 190 may be fixed to the fixture 130 . Specifically, the filter 190 is supported by the filter frame 191 , and the filter frame 191 is fixed to the fixture 130 so that the filter 190 can be fixed to the fixture 130 . However, it is not limited thereto, and the filter 190 may be coupled to the rotating body 120 and rotate together with the rotating body 120 .

The filter 190 may be detachably coupled to the fixture 130 so that the user can easily replace or clean the filter 190 . However, it is not limited thereto, and when the filter 190 is coupled to the rotating body 120, it can be separated along with the rotating body 120 and replaced or cleaned.

For rotation of the rotating body 120, the rotating body 120 and the stationary body 130 may be arranged to be spaced apart from each other. In this case, a gap 150 is formed between the rotating body 120 and the stationary body 130 . Dust inside the dust separation device 100 may flow into the rotating body 120 through the gap 150 . Such dust may clog in the gap portion 150 and interfere with rotation of the rotating body 120 or may be introduced into the motor 140 to reduce the lifespan of the motor 140 .

To prevent this problem, the dust separation device 100 may include a sealing member 160 that seals at least a portion of the gap portion 150 to prevent dust from entering the gap portion 150 . Specifically, the sealing member 160 may seal the gap inlet 151 through which air flows into the gap portion 150 . In FIG. 9 , the sealing member 160 is shown as sealing only the gap inlet 151 , but is not limited thereto, and the sealing member 160 may also seal other areas of the gap portion 150 .

The sealing member 160 may include a sealing part 161 in contact with at least one of the rotating body 120 and the stationary body 130 . The sealing unit 161 may include a brush 161a contacting at least one of the rotating body 120 and the stationary body 130 . Specifically, the sealing part 161 may contact at least one of the rotating wall 122 and the fixed wall 132, and the brush 161a may also contact at least one of the rotating wall 122 and the fixed wall 132. can

The sealing member 160 may include a base 162 supporting the sealing portion 161 . In particular, the base 162 may support the brush 161a. The base 162 may be located on the fixture 130 and may be mounted on the base mounting part 135 and provided on the fixing wall 132 or the guide part 133 . However, it is not limited thereto, and the base 162 may be located on the rotating body 120, or may be located on a support structure (not shown) configured separately from the rotating body 120 and the fixed body 130.

When the base 162 is positioned on the fixed body 130, the brush 161a may come into contact with the rotating body 120. Also, the brush 161a may contact the rotating body 120 and the fixed body 130 . However, it is not limited thereto, and depending on the arrangement of the base 162, the brush 161a may contact only the fixture 120.

10 is a view showing a sealing member according to an embodiment of the present disclosure. 11 is an exploded perspective view in which the sealing member of FIG. 10 is disassembled. FIG. 12 is an enlarged view of D in FIG. 11 .

The sealing member 160 seals at least a portion of the gap 150 formed between the rotating body 120 and the stationary body 130 to prevent dust from entering the gap 150 . In other words, the sealing member 160 seals at least a portion of the gap portion 150 to prevent dust from entering the gap portion 150 formed between the rotating wall 122 and the fixed wall 132 . The sealing member 160 may be formed to contact at least one of the rotating wall 122 and the fixed wall 132 to seal at least a portion of the gap portion 150 . The sealing member 160 may seal the gap inlet 151 through which air flows into the gap portion 150 .

The sealing part 161 of the sealing member 160 may be disposed in a direction parallel to the rotation axis direction of the rotating body 120 . In other words, the brush 161a of the sealing member 160 may be disposed in a direction parallel to the rotation axis direction of the rotating body 120 . However, it is not limited thereto, and the sealing portion 161 to the brush 161a of the sealing member 160 may be arranged in various ways.

10 to 12 , the sealing member 160 may include a sealing portion 161 and a base 162 supporting the sealing portion 161 . The sealing member 160 may be formed in a ring shape. However, it is not limited thereto, and the sealing member 160 may have various shapes depending on the shape of the gap portion 150 .

The sealing part 161 may include a brush 161a, and the base 162 may be formed to support the brush 161a. Hereinafter, for convenience of description, the brush 161a and the base 162 supporting the brush 161a will be described as reference.

The brush 161a may be made of various materials as long as it can function to seal the gap portion 150 . However, as the rotating body 120 is rotated at high speed by the motor 140, friction occurs between the brush 161a and the contacting surface (eg, the rotating wall 122), and the brush 161a is abraded. ) and the life of components in contact with the brush 161a may be shortened.

In order to solve the above problem, the brush 161a is composed of a material whose friction coefficient with the rotating wall 122 or the fixed wall 132 is lower than the friction coefficient between the rotating wall 122 and the fixed wall 132. It can be. For example, the brush 161a may include Teflon (PTFE).

The brush 161a may include a carbon fiber material. When the carbon fiber material is used, the brush 161a sufficiently seals the gap 150 and has high abrasion resistance, thereby solving the problem of shortening the lifespan of the brush 161a due to friction.

If the friction caused by the rotation of the rotating body 120 is severe, the gap portion 150 cannot be sealed or a bearing must be used instead. According to one embodiment of the present invention, the sealing member 160 includes a sealing portion 161 including a brush 161a, and the brush 161a includes a carbon fiber material having high wear resistance to reduce friction due to rotation. can be reduced Therefore, the dust separation device 100 according to an embodiment of the present invention may include the rotating body 120 rotating at high speed using the motor 140 by including the sealing member 160, and the dust separation efficiency may be increased. can improve

A fixing hole 163 may be formed on the base 162 to fix the brush 161a. The shape of the fixing hole 163 may be formed in various ways, and may be formed as a slot hole. However, it is not limited thereto, and the base 162 and the brush 161a may be integrally formed without the fixing hole 163.

The cleaner 1 may include a cleaner body 10 . The cleaner body 10 includes a suction motor 13 to generate suction force, and when air flows into the cleaner body 10 through the intake port 11a, it enters the dust separator 100 through the air inlet 112. Air and airborne dust enter. Some of the dust introduced into the dust separation device 100 immediately sinks and is collected in the dust collection chamber 111 formed by the dust collection case 110, and the remaining part of the dust is the blocking member 125 of the rotating body 120. ) sticks to The rotating body 120 is rotated by the motor 140 supported by the fixed body 130, and dust adhering to the blocking member 125 is separated and collected in the dust collection chamber 111 by the centrifugal force generated at this time. It becomes. To facilitate rotation of the rotating body 120, the fixed body 130 is disposed to be spaced apart from the rotating body 120, and a gap portion 150 is formed between the rotating body 120 and the fixed body 130. To prevent dust from entering the gap portion 150 , the dust separation device 100 may include a sealing member 160 sealing at least a portion of the gap portion 150 . The sealing member 160 includes a sealing portion 161, and the sealing portion 161 may include a brush 161a. The brush 161a includes a carbon fiber material to provide sufficient sealing of the gap portion 150 and at the same time prevent wear of the brush 161a or the like due to friction caused by the rotation of the rotating body 120 .

According to this configuration, the dust separation device 100 according to the embodiment shown in FIGS. 1 to 12 can improve dust separation efficiency by using centrifugal force generated by rotating the rotating body 120 at high speed.

13 is a cross-sectional view showing a sealing member according to another embodiment of the present disclosure.

Referring to FIG. 13 , a dust separation device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIG. 13, the same reference numerals are given to the same components as those shown in FIGS. 1 to 12, and descriptions may be omitted.

Referring to FIG. 13 , the sealing member 260 may seal at least a portion of the gap 150 formed between the rotating body 120 and the stationary body 130 to prevent dust from entering the gap 150 . Specifically, the sealing member 260 may seal the gap inlet 151 .

The sealing member 260 may include a sealing portion 261 in contact with the fixture 130 . The sealing part 261 may include a brush 261a contacting the fixture 130 . Specifically, the brush 261a may contact the fixing wall 132 . However, it is not limited thereto, and the brush 261a may contact the rotating body 120 and may contact the rotating body 120 and the stationary body 130 . The brush 261a may include a carbon fiber material.

The sealing member 260 may include a base 262 supporting the brush 261a. The base 262 may be provided on the rotating body 120 . Specifically, the base 262 may be disposed on the rotating wall 122 . However, it is not limited thereto, and the base 262 may be located on the fixed body 130, or may be located on a support structure (not shown) configured separately from the rotating body 120 and the fixed body 130.

The brush 261a may be disposed in a direction perpendicular to the axis of rotation of the rotating body 120 . However, it is not limited thereto, and the brush 261a may have various shapes and arrangements.

14 is a cross-sectional view showing a sealing member according to another embodiment of the present disclosure.

Referring to FIG. 14 , a dust separation device according to another embodiment of the present disclosure will be described. In describing the embodiment shown in FIG. 14 , the same reference numerals are assigned to the same components as those shown in FIGS. 1 to 12 and descriptions thereof may be omitted.

Referring to FIG. 14 , the sealing member 360 may seal at least a portion of the gap 150 formed between the rotating body 120 and the stationary body 120 to prevent dust from entering the gap 150 . Specifically, the sealing member 360 may seal the gap inlet 151 .

The sealing member 360 may be formed to contact both the rotating body 120 and the stationary body 130 to seal the gap portion 150 . Specifically, the sealing member 360 may contact both the rotating wall 122 and the fixed wall 132 . The sealing member 360 may be fixed to either the rotating wall 122 or the fixed wall 132 . However, it is not limited thereto, and the sealing member 360 may be supported by a separate support structure (not shown).

The sealing member 360 may be formed so that the coefficient of friction between the sealing member 360 and the contact surface that rotates relatively is smaller than the coefficient of friction between the rotating wall 122 and the fixed wall 132. there is. For example, the sealing member 360 may include a Teflon (PTFE) material. Accordingly, the sealing member 360 can prevent abrasion despite the friction caused by the rotation of the rotating body 120, and can prevent the life of the sealing member 360 from being shortened.

In FIGS. 1 to 14 , the dust separation device 100 is illustrated as being included in the cleaner 1 , but home appliances to which the dust separation device 100 is applied are not limited thereto. The dust separation device according to the spirit of the present invention can be applied to various home appliances including a structure for separating dust, such as a dryer.

In the above, specific embodiments have been illustrated and described. However, it is not limited to the above embodiments, and those skilled in the art will be able to make various changes without departing from the gist of the technical idea of the invention described in the claims below. .

One; cleaner 10; vacuum cleaner body
11a; intake port 12a; exhaust
13; suction motor 14; Pan
15; exhaust filter 100; dust separator
110; dust collection case 111; dust collection chamber
112; air inlet 113; air outlet
114; Shatterproof rib 120; body of rotation
121; rotating case 122; turning wall
123; Slide unit 125; blocking member
125a; grill 180; rotation center
130; fixture 132; fixed wall
133; guide unit 134; guide home
140; motor 150; gap part
151; gap inlets 160, 260, 360; sealing member
161, 261; sealing parts 161a, 261a; brush
162, 262; base 163; fixed hole
190; filter

Claims (20)

a dust collection chamber provided to collect dust in the air introduced from the air inlet;
Rotating body including a blocking member that is rotatable inside the dust collecting chamber and is formed to block dust and allow air to flow in;
a motor for rotating the rotating body;
a fixed body disposed to be spaced apart from the rotating body and supporting the motor; and
A sealing member including a brush that seals at least a portion of the gap portion so that dust does not flow into the gap portion formed between the rotating body and the stationary body and is in contact with at least one of the rotating body and the stationary body. separation device. According to claim 1,
The sealing member seals a gap inlet through which air flows into the gap part. According to claim 1,
The blocking member is provided along the outer circumference of the rotating body,
The rotating body further comprises a rotating case supporting the blocking member. According to claim 3,
The rotating case includes a rotating wall provided between the blocking member and the fixed body, and the sealing member seals the gap formed between the rotating wall and the fixed body. According to claim 1,
The stationary body includes a guide portion for guiding rotation of the rotating body,
The rotating body includes a slide part rotating along the guide part, and the gap part is formed between the guide part and the slide part. According to claim 5,
The guide part and the slide part are formed in a ring shape,
The sealing member is formed in a ring shape along the guide part and the slide part. According to claim 5,
The guide portion includes a guide groove formed concavely to accommodate at least a portion of the slide portion,
The slide part rotates along the guide groove,
The sealing member is a dust separation device provided in the guide groove. According to claim 1,
The sealing member further comprises a base supporting the brush. According to claim 8,
The dust separation device of claim 1, wherein the base is positioned on the fixture. According to claim 1,
The blocking member includes a grill in which a plurality of holes are formed. According to claim 1,
The brush is disposed in a direction parallel to the direction of the rotating shaft of the rotating body. According to claim 1,
The dust separation device further includes a filter disposed downstream of the blocking member on an air passage through which air flows from the air inlet. According to claim 12,
The dust separation device wherein the filter is fixed to the fixture. According to claim 1,
The brush is a dust separation device comprising a carbon fiber material. According to claim 1,
The dust collecting chamber includes a scattering prevention rib formed to prevent dust accommodated in the dust collecting chamber from scattering. A cleaner body including an intake port, an exhaust port, and a suction motor; and
Including a dust separation device provided in the cleaner body,
The dust separation device,
a dust collection chamber provided to collect dust in the air introduced from the air inlet;
Rotating body including a blocking member that is rotatable inside the dust collecting chamber and is formed to block dust and allow air to flow in;
a motor for rotating the rotating body;
a fixed body disposed to be spaced apart from the rotating body and supporting the motor; and
a sealing member including a brush that seals at least a portion of the gap portion formed between the rotating body and the stationary body so that dust does not flow into the gap portion and is in contact with at least one of the rotating body and the stationary body; . According to claim 16,
The suction motor is located downstream of the dust separator on an air passage through which air flows from the air inlet. According to claim 16,
The cleaner body further includes an exhaust filter between the dust separation device and the exhaust port. A dust collection case including an air inlet and an air outlet and having a dust collection chamber for accommodating dust therein;
A motor provided inside the dust collecting case;
a fixed body including a fixed wall and supporting the motor;
A blocking member rotatable by the motor, formed to block dust and allow air to flow in, and a rotating wall that rotates relative to the fixed wall and is spaced apart from the fixed wall, and supports the blocking member. a rotating body including a rotating case;
and a sealing member that seals at least a portion of the gap portion provided between the rotating wall and the fixed wall to prevent dust from entering the gap portion and contacts at least one of the rotating wall and the fixed wall. According to claim 19,
The sealing member is a brush that contacts at least one of the rotating wall and the fixed wall.

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