KR20220050527A - Cleaner - Google Patents

Abstract

Disclosed is a cleaner having a structure enabling a user to arbitrarily change a discharge direction of air escaping from a suction motor. According to the present invention, the cleaner comprises a discharge cover which is coupled to one side in the longitudinal direction of a rear housing so as to be rotatable, wherein the position of an air discharge unit through which air is discharged can be changed according to the rotational angle of the discharge cover. Accordingly, a user can arbitrarily change the direction in which air is discharged, so that the user's discomfort and disgust at the air discharged from the cleaner can be reduced.

Description

Cleaner {Cleaner}

The present invention relates to a vacuum cleaner, and more particularly, to a cleaner having a structure in which a user can easily change the discharge direction of air exiting from a suction motor.

In general, a vacuum cleaner is a household appliance that sucks in small garbage or dust by sucking air using electricity and fills the dust bin in the product, and is generally called a vacuum cleaner.

Such a vacuum cleaner may be divided into a manual cleaner in which the user directly moves the cleaner to perform cleaning, and an automatic cleaner in which the user performs cleaning while driving by themselves. Manual vacuum cleaners may be classified into canister-type cleaners, upright cleaners, handy-type cleaners, stick-type cleaners, and the like, depending on the type of cleaner.

In the past, canister-type vacuum cleaners were often used in household cleaners, but recently, a hand-held vacuum cleaner and a stick cleaner, which are convenient to use by providing a dust container and a cleaner body, are increasingly being used.

The canisty type vacuum cleaner is connected to the main body and the suction port by a rubber hose or pipe, and in some cases, it can be used by inserting a brush into the suction port.

The Hand Vacuum Cleaner maximizes portability, and since it is light in weight but short in length, there may be restrictions on the cleaning area while sitting. Therefore, it is used to clean localized places such as on a desk or sofa, or in a car.

The stick vacuum cleaner can be used while standing, so you can clean without bending your back. Therefore, it is advantageous for cleaning while moving a large area. If a hand-held vacuum cleaner cleans a narrow space, the stick-type vacuum cleaner can clean a wider space than that, and can clean a high place that cannot be reached by hand. Recently, a stick cleaner is provided in a module type, and the cleaner type is actively changed and used for various objects.

Meanwhile, in a general case of performing a cleaning operation using a stick cleaner, the cleaning operation is performed while the cleaner faces the front and the user pushes the cleaner from the rear of the cleaner. However, the cleaning direction may be variously changed according to the conditions of the cleaning space, and in this case, the positional relationship between the cleaner and the user may be set differently from the general case described above.

For example, when the user lifts the vacuum cleaner to clean a high place, the user may be located below the vacuum cleaner. Alternatively, when the vacuum cleaner is pushed in by lowering the posture to clean under the furniture, the user may be positioned on the side of the vacuum cleaner.

On the other hand, in the vacuum cleaner, dust is collected and the remaining air is discharged. When the air is discharged toward the user, it may cause discomfort to the user. Therefore, the outlet through which the air is discharged needs to be formed not to face the user.

As a prior document related to a stick cleaner, the portable vacuum cleaner disclosed in Korean Patent Application Laid-Open No. 10-2014-0123087 has a main body accommodating a motor and a fan unit, and includes an outer housing, a motor and a fan unit, a handle, and a battery pack. do.

Further, the body is provided with a series of exhaust holes for evacuating air from the portable vacuum cleaner.

However, the exhaust hole disclosed in Korean Patent Application Laid-Open No. 10-2014-0123087 is provided to have a fixed position, so air is always exhausted in the same direction, and the position of the exhaust port can be changed as the cleaning direction is changed. there is no In this case, the exhaust hole may face the user depending on the user's intended cleaning direction, which is a problem.

Korean Patent Publication No. 10-2014-0123087

An object of the present invention is to provide a cleaner in which a user can arbitrarily change a direction in which air is discharged.

Another object of the present invention is to provide a cleaner in which the pre-filter and the HEPA filter are detachable from the main body of the cleaner, but in which erroneous assembly is prevented when the pre-filter and the HEPA filter are reconnected to the main body of the cleaner.

In order to achieve the object as described above, an embodiment of the present invention provides a suction unit through which air containing dust is sucked, a cyclone unit communicating with the suction unit and separating dust from the suctioned air, and the suction unit. A vacuum cleaner comprising a suction motor generating an air flow so that sucked air is introduced, and a power supply supplying power to the suction motor, wherein the vacuum cleaner is disposed at the rear of the vacuum cleaner and has a cylindrical rear shape in which the suction motor is accommodated and seated. housing; and an exhaust cover detachably coupled to one side in the longitudinal direction of the rear housing and provided with an air exhaust unit for discharging the air remaining after the dust is filtered out; It is provided to be rotatable in a state coupled to the rear housing about the longitudinal axis of the housing, and the air discharge unit is provided only in a portion of the discharge cover, and the direction in which the air is discharged according to the rotation angle of the discharge cover is characterized by being changed.

In this case, the air discharge unit may include an opening formed in a direction perpendicular to a longitudinal axis of the rear housing based on a state in which the discharge cover is coupled to the rear housing.

Alternatively, the discharge cover may include a circular first cover portion; and a second cover part coupled to the first cover part and extending a predetermined length in a cylindrical shape from an edge of the first cover part, wherein the air discharge part is spaced apart from the second cover part by a predetermined interval. It may include a plurality of openings that are formed.

In addition, the discharge cover, on the second cover portion, provided on one side opposite to the one side to which the first cover portion is coupled may further include a coupling jaw coupled to the rear housing.

Meanwhile, the rear housing may include a rear housing body in which the suction motor is accommodated and seated; a pre-filter unit connected to one end of the rear housing body in the longitudinal direction and filtering the air passing through the cyclone unit; and a HEPA filter accommodating unit connected to the other end in the longitudinal direction of the rear housing body and accommodating a HEPA filter that filters the air passing through the suction motor.

In this case, the pre-filter unit may include a pre-filter support part inserted into the rear housing body and in contact with the HEPA filter accommodating unit; a cylindrical pre-filter coupled to the pre-filter support and inserted into the rear housing body; and a pre-filter cover coupled to the pre-filter and exposed to the outside of the rear housing body and coupled to one end in a longitudinal direction of the rear housing body.

Here, the pre-filter may be coupled such that a longitudinal axis of the pre-filter is eccentric to one side from the center of the pre-filter cover.

Meanwhile, the HEPA filter accommodating unit may include a cover coupling part coupled to the discharge cover; and an insertion part inserted into the rear housing body and protruding from one end of the cover coupling part in the longitudinal direction.

On the other hand, a portion of the outer peripheral surface of the rear housing body may be provided with an inclined surface disposed toward the rear of the cleaner, and the HEPA filter receiving unit includes a flat portion provided on a portion of an outer peripheral surface of the insertion portion, the flat portion, When inserted into the interior of the rear housing body, it may be disposed to correspond to the position of the inclined surface.

Meanwhile, a longitudinal axis of the suction motor may be disposed perpendicular to a longitudinal axis of the suction unit and disposed parallel to a bottom surface of the power supply unit.

On the other hand, the vacuum cleaner according to an embodiment of the present invention may further include a handle for operating the cleaner, the suction motor is disposed on the upper portion of the handle, the power supply unit may be disposed on the lower portion of the handle .

The vacuum cleaner according to an embodiment of the present invention includes a rotatable discharge cover coupled to one side in the longitudinal direction of the rear housing, and the position of the air discharge unit through which air is discharged may be changed according to the rotation angle of the discharge cover. . Accordingly, since the user can arbitrarily change the direction in which the air is discharged, the user's discomfort or rejection caused by the air discharged from the cleaner can be reduced.

In addition, in the vacuum cleaner according to an embodiment of the present invention, when the pre-filter unit, the rear housing body, the HEPA filter receiving unit, and the discharge cover have different shapes, respectively, when the respective components are separated and then reassembled Misassembly can be prevented.

1 is a perspective view of a cleaner according to an embodiment of the present invention.
2 is a side view of a cleaner according to an embodiment of the present invention.
3 is a plan view of a cleaner according to an embodiment of the present invention.
4 is a longitudinal cross-sectional view of a cleaner according to an embodiment of the present invention.
5 is a cross-sectional view of FIG. 2 taken from the center of the suction motor.
6 is a partial view of the exhaust cover;
7 is an exploded view of each configuration of the rear housing.
8 is a component diagram of a pre-filter unit.
9 is a component view of the HEPA filter receiving unit.
10 is a cross-sectional view of FIG. 2 taken from the center of the suction part.
11 to 14 are views showing a change in the air discharge direction according to the rotation of the discharge cover.

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

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for more clear explanation.

1 is a perspective view of a cleaner 1 according to an embodiment of the present invention, FIG. 2 is a side view of the cleaner 1 according to an embodiment of the present invention, and FIG. 3 is a cleaner according to an embodiment of the present invention. It is a plan view of (1), FIG. 4 is a longitudinal cross-sectional view of the cleaner 1 according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view of FIG. 2 cut with respect to the center of the suction motor.

1 to 5 , the cleaner 1 according to an embodiment of the present invention may include a body 2 . The body 2 may include a suction unit 10 through which air containing dust is sucked.

When the direction in which the longitudinal axis A1 of the suction unit 10 is disposed is defined as the front-rear direction of the cleaner 1 or the main body 2, the direction of one side where the suction unit 10 is located is referred to as the front, and will be described later. The direction of the other side in which the suction motor 20 is located may be defined as the rear. In addition, the direction in which the axis A3 of the cyclone flow of the cyclone unit 30 to be described later is arranged may be defined in the vertical direction.

The body 2 may have an outer shape formed by a plurality of housings.

For example, the main body 2 is disposed in front of the main body 2 and includes a first housing 3 having a substantially cylindrical shape, and a second housing 3 having a substantially cylindrical shape coupled to an upper side of the first housing 3 ( 4) may be included. In addition, the body 2 may include a rear housing 210 disposed at the rear of the body 2 . At this time, the second housing 4 may be connected to the rear housing 210 through the third housing 6 , and the lengthwise directions of the first housing 3 and the second housing 4 are the upper and lower sides of the main body 2 . direction and the longitudinal direction of the rear housing 210 may be arranged to be perpendicular to both the front-rear direction and the vertical direction. In other words, when the direction in which the longitudinal axis A1 of the suction unit 10 is disposed is the x-axis direction, the rear housing 210 may be disposed in the y-axis direction in the longitudinal direction, and the first housing ( 3) and the second housing 4 may be disposed in the z-axis direction in the longitudinal direction.

On the other hand, in expressing that the first housing 3 and the second housing 4 are arranged in front of the main body 2 and the rear housing 210 is arranged in the rear of the main body 2, the handle 40 to be described later The longitudinal axis A4 of the gripper 450 may be the reference.

The upper end of the first housing 3 and the lower end of the second housing 4 may have an open shape, respectively. That is, the first housing 3 may include an upper opening and the second housing 4 may include a lower opening. The coupling of the second housing 4 to the upper side of the first housing 3 may mean that the upper opening of the first housing 3 and the lower opening of the second housing 4 are coupled.

The suction unit 10 has a cylindrical shape with an open inside, is configured to suck air containing dust, and may provide a suction flow path through which air containing dust can flow. Air including dust may be guided into the interior of the body 2 through the suction unit 10 .

The body 2 may further include a suction motor 20 , a cyclone unit 30 , a handle 40 , and a power supply unit 50 .

Here, the suction motor 20 is configured to generate an air flow (ie, air flow) so that air containing dust can be introduced into the suction unit 10 . The suction motor 20 may be accommodated in the rear housing 210 .

The rear housing 210 has a cylindrical shape having a predetermined diameter, and in this case, the suction motor 20 may be seated and accommodated so that the longitudinal direction of the suction motor 20 is parallel to the longitudinal direction of the rear housing 210 .

The suction motor 20 may include a motor shaft 220 and an impeller connected to the motor shaft 220 to rotate.

The suction motor 20 may be a brushless DC (BLDC) motor. A BLDC motor is a brushless type DC motor. The BLDC motor has no brushes, which are abrasive parts, so there is less electrical and mechanical noise, and there are no problems with high-speed rotation and low rotational noise.

The cyclone unit 30 communicates with the suction unit 10 and is configured to apply the principle of a dust collector using centrifugal force to separate dust sucked into the body 2 through the suction unit 10 .

For example, the cyclone unit 30 may include a first cyclone 310 capable of separating dust by cyclone flow. The first cyclone 310 may communicate with the suction unit 10 . Air and dust sucked in through the suction unit 10 are spirally flowed along the inner circumferential surface of the first cyclone 310 . The axis A3 of the cyclone flow of the first cyclone 310 may extend in the vertical direction.

The cyclone unit 30 may further include a second cyclone 330 that again separates dust from the air discharged from the first cyclone 310 . In this case, the second cyclone 330 may be located inside the first cyclone 310 so that the size of the cyclone unit 30 is minimized. The second cyclone 330 may include a plurality of cyclone bodies arranged in parallel. The air discharged from the first cyclone 310 may be divided into a plurality of cyclone bodies and passed through.

At this time, the axis (A3) of the cyclone flow of the second cyclone 330 may also extend in the vertical direction, and the axis (A3) of the cyclone flow of the first cyclone 310 and the second cyclone (330) ) of the cyclone flow axis (A3) may be coaxial in the vertical direction, which may be collectively referred to as the cyclone flow axis (A3) of the cyclone unit (30).

The body 2 may further include a cyclone filter 350 disposed to surround the second cyclone unit 330 . The cyclone filter 350 is formed in a cylindrical shape, for example, and may guide the air separated from the dust in the first cyclone unit 310 to the second cyclone 330 . The cyclone filter 350 may filter dust while air passes.

To this end, the cyclone filter 350 may include a mesh portion having a plurality of holes. The mesh portion is not limited, but may be formed of a metal material.

Meanwhile, as another example, it is also possible that the cyclone unit 30 has a single cyclone, and even in this case, the axis A3 of the cyclone flow may extend in the vertical direction.

The handle 40 is a component that allows the user to grip and move the cleaner 1, and is disposed in the opposite direction to the suction unit 10 with respect to the cyclone unit 30 and is a part that the user grips with his/her hand. A gripper 450 may be included. Here, the gripper 450 has a substantially cylindrical shape and has an axis A4 in the longitudinal direction. In addition, the gripper 450 may be disposed with an upper portion inclined toward the front.

The power supply unit 50 is a component for supplying power to the suction motor 20 , and includes a battery 510 . The power supply unit 50 may be disposed to be adjacent to the handle 40 on the upper side, and a lower portion of the outer peripheral surface of the dust container 60 to be described later may be disposed to be adjacent to the front side.

The main body 2 may further include a dust container 60 for storing the dust separated from the cyclone unit 30 .

The dust container 60 may include a dust collecting body 610 having a cylindrical shape. For example, it is also possible that the first cyclone 310 does not exist separately, and the upper portion of the dust collecting body 610 serves as the first cyclone 310 . All or at least a part of the second cyclone 330 may be located in the dust container 60 .

A dust storage guide 604 for guiding storage of the dust separated from the second cyclone 330 may be disposed in the dust collecting body 610 . The dust storage guide 604 may be coupled to the lower side of the second cyclone 330 .

The dust storage guide 604 separates the space inside the dust collecting body 610 from the first dust storage unit 602 in which the dust separated from the first cyclone 310 is stored, and the second cyclone 330 . It is divided into a second dust storage unit 606 in which the dust is stored. In other words, the inner space of the dust storage guide 604 is the second dust storage unit 606 , and the space between the dust storage guide 604 and the dust collecting body 610 is the first dust storage unit 602 .

Hereinafter, the arrangement relationship of each component included in the cleaner 1 according to the present invention will be described in more detail.

1 to 5 , the first housing 3 may include a first cyclone 310 , a second cyclone 330 , and a dust container 60 . More specifically, an upper portion of the first housing 3 may be defined as a first cyclone 310 , and a second cyclone 330 may be accommodated in the first housing 3 , and the first A lower portion of the housing 3 may be defined as the dust container 60 described above.

The suction part 10 may be disposed where the first housing 3 and the second housing 4 are coupled. More specifically, a portion of the suction passage of the suction unit 10 may be disposed in communication with the first housing 3 and the other portion may be disposed in communication with the second housing 4 .

In addition, a handle 40 and a power supply unit 50 may be disposed at the rear of the first housing 3 , and a third housing 6 is disposed at a portion connecting the second housing 4 and the rear housing 210 . This can be arranged.

On the other hand, in the cleaner 1 according to an embodiment of the present invention, the longitudinal axis A2 of the suction motor 20 is disposed to be perpendicular to the longitudinal axis A1 of the suction unit 10, and the power supply unit ( 50) may be disposed parallel to the bottom surface (B). In this case, the longitudinal axis A1 of the suction unit 10 may also be disposed parallel to the bottom surface B of the power unit 50 .

Unlike an embodiment of the present invention, it is assumed that the longitudinal axis A2 of the suction motor 20 is arranged to be parallel to the longitudinal axis A1 of the suction unit 10 . That is, this is a case in which the suction motor 20 extends along the longitudinal axis A1 of the suction unit 10 . In this arrangement, since the long axis of the suction motor 20 is arranged in the front-rear direction, the main body of the cleaner protrudes long in the direction in which the wrist extends when the handle 40 is gripped. Therefore, there is a problem that the grip feeling is not good.

In contrast, in the cleaner 1 according to the embodiment of the present invention, one configuration of the main body 2 can be prevented from excessively protruding to the rear of the gripper 450 . Accordingly, when the user holds the handle 40 for cleaning, it is possible to reduce a portion that contacts and interferes with the wrist.

In addition, in the cleaner 1 according to the embodiment of the present invention, the outer peripheral surface of the rear housing 210 has a circular shape when the cleaner 1 is viewed from the side. Due to this, when the user holds the handle 40 for cleaning, it is possible to naturally form a curved surface in the direction in which the wrist extends from the back of the hand. Accordingly, there is an advantage in that the user's grip on the cleaner 1 is further improved.

On the other hand, the rear housing 210 may be disposed on the upper portion of the handle 40 of the cleaner 1 according to the present invention, and the power supply unit 50 may be disposed on the lower portion of the handle 40 . That is, the handle 40 may be disposed between the suction motor 20 and the power supply unit 50 .

In this case, the handle extension lines L1 and L2 formed by extending a tangent line in contact with the outer circumferential surface of the gripper 450 may be disposed to be spaced apart from the suction motor 20 by a predetermined distance in a radial direction.

More specifically, the handle extension lines L1 and L2 are the outermost of the gripping portion 450 when the main body 2 is cut and viewed in a plane including the longitudinal axis A1 of the suction portion 10 . It may refer to extension lines L1 and L2 in which a tangent line contacting the gripper 450 extends from the protruding outermost points P1 and P2 (see FIG. 4 ).

Since the handle extension lines L1 and L2 are disposed to be spaced apart from the suction motor 20 by a predetermined distance in the radial direction, the handle extension lines L1 and L2 do not pass through the suction motor 20 . In other words, the handle extension lines L1 and L2 and the suction motor 20 do not come into contact with each other at any one point. In other words, the handle extension lines L1 and L2 are disposed so as not to meet any part of the suction motor 20 .

Through this, the center of gravity (G1) of the suction motor 20 may be disposed to be located at the rear of the handle extension lines (L1, L2). Also, the center of gravity G1 of the suction motor 20 may be disposed in the opposite direction to the suction unit 10 with respect to the longitudinal axis A4 of the gripper 450 .

Through this arrangement relationship, the center of gravity G1 of the suction motor 20 may be formed close to the user's wrist. Therefore, it is possible to reduce the moment force due to the center of gravity (G1), the load applied to the user's wrist is reduced, has the effect of feeling less fatigue in performing a cleaning operation for a long time.

On the other hand, as described above, the grip portion 450 of the handle 40 is disposed in a shape with an upper portion inclined toward the front. Accordingly, the center of gravity G2 of the power supply unit 50 may be disposed to be located in front of the longitudinal axis A4 of the holding unit 450 . That is, the center of gravity G1 of the suction motor 20 and the center of gravity G2 of the power supply unit 50 may be disposed to be located in opposite directions with respect to the longitudinal axis A4 of the gripper 450 . .

Through this arrangement relationship, the center of gravity (G2) of the power supply unit 50, which is one component with a heavy weight, based on the grip unit 450, which is the part that the user grips, and the suction motor 20, which is another component with heavy weight. Since the centers of gravity (G1) are in opposite directions to each other, there is an effect of optimizing the weight balance of the main body (2).

In addition, the handle 40 may form a connection portion 451 on one side of the grip portion 450 adjacent to the rear housing 210 . The connecting portion 451 may have a shape that naturally extends without a step difference by forming a portion where the outer circumferential surface of the rear housing 210 and the gripper 450 are coupled to a curved surface having a predetermined radius.

Through this, when the user grabs the gripping part 450, the connection part 451 is seated between the user's thumb and index finger, so that the heavy suction motor 20 is supported on the back of the hand, so the cleaning operation is performed There is an effect that the city cleaner 1 can be supported in a more stable form.

Meanwhile, the bottom surface B of the power supply unit 50 and the bottom surface B ′ of the dust container 60 (which may be referred to as the bottom surface of the first housing 3 ) do not exist on one plane and may have a step difference. That is, the bottom surface B of the power supply unit 50 and the bottom surface B' of the dust container 60 may be configured to have different heights.

Preferably, the suction motor 20 and the battery 510, which are relatively heavy components, are disposed above the bottom surface B of the power supply unit 50, and the bottom surface (B) of the power supply unit 50 protrudes further downward. It is preferable to be

Through this, when the bottom surface B of the power supply unit 50 is placed on the floor surface, the main body 2 of the cleaner 1 may be stably supported without falling in the direction of the dust container 60 .

In addition, the longitudinal axis A1 of the suction unit 10 may be formed above the grip portion 450 of the handle 40 , and may be disposed to penetrate at least a portion of the rear housing 210 . More specifically, the longitudinal axis A1 of the suction part 10 disposed at the connection part of the first housing 3 and the second housing 4 has a predetermined distance from the grip part 450 of the handle 40 . It is disposed at the upper part spaced apart, that is, the longitudinal axis A1 of the suction part 10 is disposed in a form that does not penetrate the grip part 450 of the handle 40 .

Conventionally, when the suction motor 20 is disposed above the cyclone unit 30 , there is a limit to increasing the height of the first housing 3 in consideration of the length of the suction motor 20 . Accordingly, the longitudinal axis A1 of the suction unit 10 to be disposed near the upper end of the first housing 3 had to be disposed to penetrate the grip portion 450 of the handle 40 .

On the contrary, according to an embodiment of the present invention, since the suction motor 20 is disposed on the upper portion of the handle 40, the height of the second housing 4 disposed on the upper portion of the cyclone unit 30 is reduced and compared with the prior art. It becomes possible to increase the height of the upper end of the first housing 3 .

Accordingly, when the overall height of the main body 2 is the same, the height of the first housing 3 can be higher than that of the conventional one, so that the height of the dust container 60 can also be formed high, and the dust container 60 can collect dust. The acceptable dose may be increased. This has the advantage of reducing the inconvenience of frequently emptying the dust of the dust container 60 from the user's point of view.

In the cleaner 1 according to an embodiment of the present invention, the body 2 may further include a discharge cover 270 .

6 is a partial view of the exhaust cover;

Referring to FIG. 6 , the discharge cover 270 is configured to be detachably coupled to one side of the rear housing 210 in the longitudinal direction of the rear housing 210 . The exhaust cover 270 may be provided with an air exhaust unit 275 for discharging the remaining air after filtering the dust to the outside of the main body 2 .

The discharge cover 270 may include a first cover part 271 and a second cover part 273 .

Here, the first cover part 271 is provided in a shape corresponding to the shape of the opened side of the rear housing 210 . That is, the first cover part 271 may be provided in a circular shape.

The second cover part 273 is coupled to the first cover part 271 and may be formed by extending a predetermined length in a cylindrical shape from the edge of the first cover part 271 . Through this, the discharge cover 270 including the first cover part 271 and the second cover part 273 may be provided in a cylindrical shape with one side open in the longitudinal direction.

The air discharge part 275 provided in the second cover part 273 may include a plurality of openings passing through the second cover part 273 . The plurality of openings may penetrate in a direction perpendicular to the longitudinal axis A2 of the suction motor 20 based on a state in which the discharge cover 270 is coupled to the rear housing 210 . In other words, the air flowing along the axis of the motor shaft 220 is discharged through the plurality of openings, and may be discharged in a vertical direction in the flow direction. In this case, the plurality of openings may be formed to be spaced apart from each other at a predetermined interval, and may have a rectangular shape, for example.

The discharge cover 270 is provided on the second cover part 273 on one side opposite to the one side where the second cover part 273 is coupled to the first cover part 271 and is coupled to the rear housing 210 . It may further include a coupling jaw 277 to be.

At this time, the coupling jaw 277 may have a cylindrical shape and may be provided to have a smaller diameter than the diameter of the second cover part 273 . More specifically, the diameter of the outer circumferential surface of the coupling jaw 277 is provided to be the same as the diameter of the inner circumferential surface of the cover coupling portion 213a of the HEPA filter receiving unit 213, which will be described later, so that the coupling jaw 277 is coupled to the cover. It may be provided to be inserted into the part 213a. Accordingly, when the user turns the discharge cover 270 about the longitudinal axis A2 of the suction motor 20 in a state of holding the second cover part 273 of the discharge cover 270, the discharge cover 270 ) is inserted into the cover coupling part 213a and can rotate in a coupled state.

In other words, the discharge cover 270 may rotate while being coupled to the rear housing 210 by a user's manipulation. On the other hand, since the diameter of the outer peripheral surface of the engaging projection 277 is provided to be the same as the diameter of the inner peripheral surface of the cover coupling portion 213a, a suitable frictional force is generated when the discharge cover 270 is rotated. By this frictional force, if the user applies a force, the discharge cover 270 may be rotated as much as desired, and after the discharge cover 270 is rotated at a desired angle, the discharge cover 270 is fixed to the cover coupling portion 213a. can do it

Meanwhile, the air discharge unit 275 may be provided only on a portion of the discharge cover 270 . More specifically, the air discharge unit 275 may be provided only on one portion of the second cover portion 273 and may not be provided on the other portion. Preferably, when the exhaust cover 270 is rotated, the area of the second cover part 273 in which the air exhaust part 275 is provided is the entire second cover part 273 so that it is easy to change the direction in which the air is discharged. It is desirable not to exceed 1/2 of the area.

With this configuration, the direction in which air is discharged through the air discharge unit 275 may be changed according to the rotation angle at which the discharge cover 270 rotates. Accordingly, it is possible to reduce the user's discomfort or rejection due to the air discharged from the cleaner 1 .

Hereinafter, the rear housing 210 will be described in detail with further reference to FIGS. 3, 4, and 7 to 9 .

7 is an exploded view of each configuration of the rear housing 210 .

Referring to FIG. 7 , the rear housing 210 may include a rear housing body 211 , a pre-filter unit 212 , and a HEPA filter accommodating unit 213 .

Here, the rear housing body 211 is configured to be coupled to the third housing 6 and the handle 40 , and the suction motor 20 may be accommodated therein. The rear housing body 211 has a substantially cylindrical shape. The rear housing body 211 may be integrally formed with the third housing 6 and the handle 40 .

Meanwhile, the rear housing body 211 may include an inclined surface 211a on which the display unit 215 is disposed.

Referring back to FIG. 3 , the inclined surface 211a may be provided on a portion of the outer peripheral surface of the rear housing body 211 , and the inclined surface 211a may be formed to face the user during a cleaning operation. Specifically, the inclined surface 211a may be disposed to face the rear of the cleaner 1 , and an upper end of the inclined surface 211a may be disposed to be inclined toward the front. For example, the angle between the inclined surface 211a and the axis A3 of the cyclone flow of the cyclone unit 30 may form an angle of 30 degrees to 45 degrees.

The inclined surface 211a may be disposed to face the upper rear side of the main body 2 . As the inclined surface 211a is provided, the rear housing body 211 may be formed in a cylindrical shape in which the rear upper side is cut off by the inclined surface 211a portion.

The operating state of the cleaner 1 may be displayed on the display unit 215 disposed on the inclined surface 211a. Since the inclined surface 211a is formed to be inclined toward the user, the state of the cleaner 1 displayed on the display unit 215 in the process of cleaning (for example, the remaining amount of the battery, the suction strength of the suction motor, etc.) ) can be easily checked by the user. The display unit 215 is not limited, but may be in the form of a display screen including a plurality of light emitting units.

As described above, when the display unit 150 is disposed on the inclined surface 211a provided on a portion of the outer circumferential surface of the rear housing body, the display unit 215 may have a long horizontal length. Accordingly, the display unit 215 disposed on the inclined surface 211a has a larger area, and the user's awareness of information about the operating state of the cleaner displayed on the display unit 215 increases, thereby increasing user convenience. .

Meanwhile, as the display unit 215 has a larger area, various information on the state of the cleaner 1 may be displayed.

In addition, a manipulation unit (not shown) together with the display unit 215 may be further disposed on the inclined surface 211a. The user may input an operation or stop command of the cleaner 1 through the operation unit. On the other hand, when the display unit 215 and the operation unit are disposed on one inclined surface 211a as described above, there is an advantage in that the user's convenience in operating the cleaner 1 is increased.

8 is a component diagram of the pre-filter unit 212 .

The pre-filter unit 212 may be connected to one end in the longitudinal direction of the rear housing body 211 and filter the air that has passed through the cyclone unit 30 . The pre-filter unit 212 may include a pre-filter support 212a, a pre-filter 212b, and a pre-filter cover 212c.

The pre-filter support part 212a may be inserted into the rear housing body 211 and may come into contact with a HEPA filter receiving unit 213 to be described later inside the rear housing body 211 . A circular through-hole 212d is formed in the pre-filter support 212a, and the suction motor 20 can pass through the through-hole 212d.

The pre-filter 212b may be coupled to the pre-filter support 212a and inserted into the rear housing body 211, and may have a hollow cylindrical shape. At this time, the suction motor 20 may be inserted into the pre-filter 212b through the through-hole 212d of the pre-filter support part 212a. The pre-filter 212b serves to filter out dust that is not collected in the cyclone unit 30 before the air flows into the suction motor 20 .

Here, the pre-filter 212b may be a mesh filter having a cylindrical shape. For example, the pre-filter 212b may include a material of nylon and a spun-bonded fabric. The spunbond nonwoven fabric is a type of nonwoven fabric made by spinning synthetic fibers such as polypropylene (PP, polypropylene) and then applying heat to adhere them.

The pre-filter cover 212c is coupled to the pre-filter 212b and is configured to be exposed to the outside of the rear housing body 211 . The pre-filter cover 212c may serve as a cover of the rear housing 210 by being coupled to one end in the longitudinal direction of the rear housing body 211 (in the opposite direction to the one end to which the discharge cover 270 is coupled).

On the other hand, the pre-filter 212b may be coupled such that the longitudinal axis is eccentric to one side from the center of the pre-filter cover 212c. With such a structure, since the pre-filter 212b can be spaced apart from the inclined surface 211a by a predetermined distance inside the rear housing body 211, the air flow is not obstructed despite the presence of the inclined surface 211a. can

In addition, the pre-filter unit 212 may be provided such that the pre-filter support 212a, the pre-filter 212b, and the pre-filter cover 212c are integrally separated from the rear housing body 211 . That is, the pre-filter unit 212 can be separated or coupled to the rear housing body 211 in the longitudinal direction of the rear housing 210 , and accordingly, the user can replace the pre-filter 212b with the cleaner 1 whenever desired. It can be separated from the body (2) and washed.

9 is a component view of the HEPA filter accommodating unit 213 .

The HEPA filter accommodating unit 213 is connected to the other end in the longitudinal direction of the rear housing body 211 and may accommodate the HEPA filter 290 that filters air passing through the suction motor 20 .

The HEPA filter accommodating unit 213 may include a cover coupling part 213a and an insertion part 213b.

The cover coupling part 213a is configured to accommodate a portion of the HEPA filter 290 and is coupled to the discharge cover 270 . More specifically, the cover coupling part 213a has a cylindrical shape, and the coupling jaw 277 of the discharge cover 270 is inserted and coupled to the inside of the cover coupling part 213a, and the inner circumferential surface of the cover coupling part 213a and The coupling jaw 277 is inserted into and coupled to the cover coupling portion 213a so that the outer peripheral surface of the coupling jaw 277 abuts.

The insertion part 213b may be inserted into the rear housing body 211 and protrude from one end of the cover coupling part 213a in the longitudinal direction. More specifically, the radially outer peripheral surface of the insertion portion 213b may include a curved portion 213ba and a flat portion 213bb. In this case, the curved portion 213ba may be defined as a curved surface similar to a cylindrical shape on a part of the outer peripheral surface of the inserting part 213b, and the flat part 213bb is a curved part 213ba on a part of the outer peripheral surface of the inserting part 213b. It may be defined as a flat surface extending for a predetermined length from any one point of The flat part 213bb is configured to correspond to the position of the inclined surface 211a of the rear housing body 211 when the insertion part 213b is inserted into the rear housing body 211 . That is, the outer peripheral surface of the insertion portion 213b may have a shape similar to the letter “D” by the curved portion 213bb and the flat portion 213ba.

The insertion part 213b may further include a HEPA filter support part 213bc. A circular through hole 213bd is provided in the HEPA filter support 213bc, and the suction motor 20 may be inserted through the through hole 213bd.

The HEPA filter support 213bc and the pre-filter support 212a may be coupled to each other so as to contact each other inside the rear housing body 211 . Due to this configuration, the air that has passed through the cyclone unit 30 first passes through the pre-filter 212b coupled to the pre-filter support unit 212a. Thereafter, the air may be discharged through the HEPA filter 290 through the suction motor 20 .

On the other hand, the HEPA filter 290 (high efficiency particulate air filter: HEPA filter) accommodated in the HEPA filter accommodation unit 213 serves to finally filter fine dust not filtered by the pre-filter 212b, and some may be accommodated in the discharge cover 270 and the remaining portion may be accommodated in the HEPA filter accommodation unit 213 . In addition, the HEPA filter 290 may be accommodated inside the exhaust cover 270 to surround the air exhaust unit 275 so that air is filtered before being discharged to the air exhaust unit 275 .

The HEPA filter 290 has a cylindrical shape, and the diameter of the inner circumferential surface may be larger than the diameter of the through hole 213bd of the HEPA filter support part 213bc. Accordingly, the HEPA filter 290 may be accommodated in the HEPA filter receiving unit 213 and supported by the HEPA filter support 213bc. Meanwhile, since the HEPA filter 290 is detachably provided, the user can remove the HEPA filter 290 from the body 2 and wash it whenever desired.

In the present invention, the cleaner 1 has been described as including the pre-filter 212b and the HEPA filter 290, but it should be noted that there is no limitation on the type and number of filters.

Meanwhile, the HEPA filter accommodating unit 213 may be provided such that the cover coupling part 213a and the insertion part 213b are integrally separated from the rear housing body 211 . That is, the HEPA filter accommodating unit 213 can be separated or coupled from the rear housing body 211 in the longitudinal direction of the rear housing 210 , and accordingly, the HEPA filter 290 as well as the HEPA filter can be accommodated whenever a user desires. The unit 213 may also be separated from the main body 2 of the cleaner 1 for washing.

The pre-filter unit 212 , the rear housing body 211 , the HEPA filter accommodation unit 213 , and the discharge cover 270 have different structural features as described above, thereby preventing erroneous assembly.

More specifically, since the pre-filter unit 212 includes the pre-filter support 212a, the pre-filter 212b, and the pre-filter cover 212c integrally, the discharge cover 270 is to be coupled to the pre-filter unit 212 . can't That is, the discharge cover 270 is provided to be coupled only to the insertion portion 213b of the HEPA filter unit 213 due to its morphological characteristics.

Due to this structural feature, when a user separates the pre-filter unit 212, the HEPA filter accommodating unit 213, and the HEPA filter 290 from the body 2 for cleaning and then reassembles it, it can be reassembled intuitively without confusion. can

Hereinafter, an air flow inside the cleaner 1 will be described with reference to FIGS. 4, 5 and 10 .

4, 5 and 10 , air containing dust is sucked through the suction unit 10 by the operation of the suction motor 20 . Air is horizontally introduced to the inner circumferential surface of the first cyclone 310 through the suction unit 10 in a tangential direction, and descends while rotatingly flowing along the inner circumferential surface. In the descending air, dust and air are subjected to centrifugal forces of different magnitudes due to the difference in density. Accordingly, relatively heavy dust is vertically discharged downward and collected in the first dust storage unit 602 of the dust container 60 .

Meanwhile, the descending air forms an upward airflow in the reverse direction at some point and flows into the second cyclone 330 , and the air flowing into the second cyclone 330 is again separated from dust. The dust separated from the air in the second cyclone 330 flows downward again and is stored in the second dust storage unit 506 . Air separated from dust in the second cyclone 330 is discharged from the second cyclone 330 and passes through the third housing 6 toward the rear housing 211 .

The air that has reached the rear housing 211 first passes through the pre-filter 212b because the suction motor 20 is surrounded by the pre-filter unit 212 and the HEPA filter accommodating unit 213 . As the air passes through the pre-filter 212b, fine dust that is not already filtered by the cyclone unit 30 is filtered. In addition, the air that has passed through the pre-filter 212b flows through the suction motor 20 along the axis of the motor shaft 220 and then passes through the HEPA filter 290 to finally filter out dust, and It is discharged to the outside of the main body 2 through the air outlet 275.

11 to 14 are views for explaining that the direction in which the air is discharged is changed according to the rotation of the discharge cover 270 .

Referring to FIG. 11 , when the user performs a cleaning operation without rotating the exhaust cover 270 in a state in which the air exhaust unit 275 is coupled to the rear housing 210 to face upward, the dust is filtered and the remaining Air is discharged toward the top of the body (2).

Alternatively, referring to FIG. 12 , in a state in which the air discharge unit 275 is coupled to the rear housing 210 to face upward, the user rotates the discharge cover 270 at a predetermined angle toward the front, followed by a cleaning operation If performed, the position of the air outlet 275 is directed toward the front of the main body 2 , and the air remaining after the dust is filtered is discharged toward the front of the main body 2 .

Alternatively, referring to FIG. 13 , in a state in which the air discharge unit 275 is coupled to the rear housing 210 to face upward, the user rotates the discharge cover 270 at a predetermined angle toward the rear, followed by a cleaning operation When performing, the position of the air outlet 275 is directed toward the rear of the main body 2 , and the air remaining after the dust is filtered is discharged toward the rear of the main body 2 .

Alternatively, referring to FIG. 14 , when the user performs a cleaning operation after rotating the exhaust cover 270 180 degrees in a state in which the air exhaust unit 275 is coupled to the rear housing 210 to face upward, the air The position of the discharge unit 275 is directed downward of the main body 2 , and the air remaining after the dust is filtered is discharged toward the lower side of the main body 2 .

In this way, since the user can freely change the direction in which the air is discharged according to the rotation angle of the discharge cover 270, an appropriate exhaust direction can be selected according to the positional relationship between the vacuum cleaner 1 and the user, which is changed according to the cleaning operation. Do.

As described above, the vacuum cleaner according to an embodiment of the present invention includes a rotatable exhaust cover coupled to one side in the longitudinal direction of the rear housing, and the air is discharged according to the rotation angle of the exhaust cover. You can change the position of the part. Accordingly, since the user can arbitrarily change the direction in which the air is discharged, the user's discomfort or rejection caused by the air discharged from the cleaner can be reduced.

In addition, in the vacuum cleaner according to an embodiment of the present invention, the pre-filter unit, the rear housing body, the HEPA filter receiving unit, and the discharge cover have different shapes, respectively, when reassembling after separating the respective components. Misassembly can be prevented.

In the foregoing, a specific embodiment of the present invention has been described and illustrated, but the present invention is not limited to the described embodiment, and those of ordinary skill in the art may change to other specific embodiments without departing from the spirit and scope of the present invention. It will be understood that modifications and variations are possible. Accordingly, the scope of the present invention is

It should not be determined by the specified embodiment, but should be determined by the technical idea described in the claims.

1: vacuum cleaner
2: body
3: first housing
4: second housing
6: third housing
10: suction unit
20: suction motor
210: rear housing
211a: slope
212: pre-filter unit
212a: pre-filter support
212b: pre-filter
212c: pre-filter cover
213: HEPA filter receiving unit
213a: cover coupling part
213b: insert
213ba: curved part
213bb: flat part
213bc: HEPA filter support
215: display unit
220: motor shaft
270: exhaust cover
271: first cover part
273: second cover part
275: air outlet
277: joint jaw
275: air outlet
290: hepa filter
30: cyclone unit
310: first cyclone
330: second cyclone
40: handle
450: grip part
451: connection
50: power unit
510: battery
60: dust bin
602: first dust storage unit
604: dust storage guide
606: second dust storage unit
610: dust collection body

Claims (11)

A suction unit through which air containing dust is sucked, a cyclone unit communicating with the suction unit and separating dust from the suction unit, a suction motor generating an air flow so that the suctioned air is introduced into the suction unit, and the above; In the vacuum cleaner comprising a power supply for supplying power to the suction motor,
a cylindrical rear housing disposed at the rear of the cleaner and accommodating and seating the suction motor; and
Further comprising; a discharge cover detachably coupled to one side of the rear housing in the longitudinal direction and provided with an air discharge unit for discharging the remaining air after filtering the dust;
The discharge cover is provided to be rotatable in a state coupled to the rear housing about the longitudinal axis of the rear housing by a user's operation,
The air discharge unit is provided only on a portion of the discharge cover, and the direction in which the air is discharged is changed according to a rotation angle of the discharge cover.
According to claim 1,
The air discharge unit may include an opening formed in a direction perpendicular to a longitudinal axis of the rear housing based on a state in which the discharge cover is coupled to the rear housing.
According to claim 1,
The discharge cover may include a circular first cover portion; and a second cover part coupled to the first cover part and extending a predetermined length in a cylindrical shape from an edge of the first cover part.
The air discharge unit may include a plurality of openings formed to be spaced apart from each other at a predetermined interval on the second cover unit.
4. The method of claim 3,
The exhaust cover,
The cleaner further comprising a coupling jaw provided on the second cover part on one side opposite to the one side to which the first cover part is coupled and coupled to the rear housing.
According to claim 1,
The rear housing is
a rear housing body in which the suction motor is accommodated and seated;
a pre-filter unit connected to one end of the rear housing body in the longitudinal direction and filtering the air passing through the cyclone unit; and
and a HEPA filter accommodating unit connected to the other end in the longitudinal direction of the rear housing body and accommodating a HEPA filter that filters the air passing through the suction motor.
6. The method of claim 5,
The pre-filter unit,
a pre-filter support part inserted into the rear housing body and in contact with the HEPA filter accommodating unit;
a cylindrical pre-filter coupled to the pre-filter support and inserted into the rear housing body; and
and a pre-filter cover coupled to the pre-filter and exposed to the outside of the rear housing body and coupled to one end of the rear housing body in a longitudinal direction.
7. The method of claim 6,
The pre-filter is
The cleaner, characterized in that coupled so that the longitudinal axis of the pre-filter is arranged eccentrically to one side from the center of the pre-filter cover.
6. The method of claim 5,
The HEPA filter accommodating unit,
a cover coupling portion coupled to the discharge cover; and
and an insertion part inserted into the rear housing body and protruding from one end of the cover coupling part in the longitudinal direction.
9. The method of claim 8,
A portion of the outer peripheral surface of the rear housing body is provided with an inclined surface disposed toward the rear of the cleaner,
The HEPA filter accommodating unit includes a flat portion provided on a portion of an outer circumferential surface of the insertion portion,
The flat part, when inserted into the rear housing body, characterized in that it is disposed to correspond to the position of the inclined surface.
According to claim 1,
A longitudinal axis of the suction motor is disposed perpendicular to a longitudinal axis of the suction unit and disposed parallel to a bottom surface of the power unit.
According to claim 1,
Further comprising a handle for operating the vacuum cleaner,
The suction motor is disposed above the handle, and the power supply unit is disposed below the handle.

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