TW202442173A - Handy type cleaner - Google Patents

Abstract

A handy type cleaner, comprising: a suction inlet suctioning air into the cleaner; a first cyclone unit separating dust from air that is suctioned through the suction inlet; a second cyclone unit separating dust from air that is discharged from the first cyclone unit; a suction motor disposed above the second cyclone unit and including an impeller; a first filter surrounding at least a part of the suction motor and filtering air discharged from the second cyclone unit to the suction motor; a body accommodating the suction motor and the first filter; and a filter unit coupled to the body and supporting the first filter in the body, the filter unit having a second filter filtering air being discharged to an outside of the cleaner, wherein the first filter and the second filter are, based on the filter unit being separated from the body along a first direction, separated along the first direction to the outside of the cleaner.

Description

Handheld Vacuum Cleaner

The present invention relates to a vacuum cleaner.

Vacuum cleaners can be divided into manual vacuum cleaners that a user moves personally for cleaning and automatic vacuum cleaners that move automatically for cleaning.

Manual vacuum cleaners can be divided into canister cleaners, upright cleaners, handy cleaners, and stick cleaners according to their types.

Meanwhile, in the prior art, Korean Patent No. 10-1127088 (registered on March 8, 2012) has disclosed a handheld vacuum cleaner.

The handheld vacuum cleaner includes: a suction tube, an airflow generator, a cyclone separator, a power source, and a handle.

In addition, the airflow generator is arranged in the motor housing and has a combination of a motor and a fan. In addition, the pre-motor filter is arranged in front of the motor, and the post-motor filter is arranged behind the motor.

When the filter is used for a long time, dust may accumulate in the filter. When the filter is not cleaned, the dust accumulated in the filter becomes flow resistance, thereby reducing the suction capacity.

However, in this document, because the pre-motor filter is disposed between the airflow generator and the cyclone separator and is surrounded by an external housing, the product needs to be disassembled to reach the filter, which is troublesome for the user.

Furthermore, since a structure for guiding the air discharged from the cyclone separator to the motor and a structure for guiding the air having passed through the motor to the post-motor filter are separately provided, the number of parts is large and the structure is complicated.

The present invention provides a vacuum cleaner having a simple structure and including a small number of parts because a flow guide forms a suction passage and an exhaust passage for a suction motor.

The present invention provides a vacuum cleaner which is compact and has a sufficient air passage width for a suction motor.

The present invention provides a vacuum cleaner whose main body forming the appearance will not be deformed.

The present invention provides a vacuum cleaner, wherein a filter unit and a pre-filter can be separated.

A vacuum cleaner includes: a suction motor that generates suction; a dust separation unit that separates dust from air sucked in by the suction; a motor housing that covers the suction motor; a flow guide that surrounds the outer side of the motor housing and guides the air discharged from the dust separation unit to the suction motor; and a body that surrounds the flow guide and cooperates with the flow guide to guide the air discharged from the suction motor.

A vacuum cleaner comprises: a suction unit including a longitudinal axis; a suction motor generating suction to introduce air through the suction unit; a dust separation unit disposed below the suction motor to separate dust from the air sucked in by the suction; one or more air outlets disposed above the suction motor in a state where the longitudinal axis of the suction unit is horizontally placed; and a flow guide for guiding the air separated in the dust separation unit upward to the suction motor, and guiding the air passing through the suction motor upward to the one or more air outlets.

Some embodiments of the present invention will be described in detail below with reference to the attached drawings. It should be noted that when reference numerals are used to represent elements in the drawings, the same elements have the same reference numerals as much as possible, although the elements are shown in different drawings. In addition, in the description of the embodiments of the present invention, when it is determined that the detailed description of a known structure or function will hinder the understanding of the embodiments of the present invention, the detailed description will be omitted.

In addition, in the description of the embodiments of the present invention, terms such as first, second, A, B, (a) and (b) may be used. Each term is used only to distinguish the corresponding element from other elements and does not limit the nature, order or sequence of the corresponding components. It should be understood that when an element is "connected", "coupled" or "engaged" to another element, the former may be directly connected or engaged to the latter or may be "connected", "coupled" or "engaged" to the latter through a third element inserted therebetween.

FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention; FIG. 2 is a side view of a vacuum cleaner according to an embodiment of the present invention; and FIG. 3 is a plan view of a vacuum cleaner according to an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a vacuum cleaner according to an embodiment of the present invention; FIG. 5 is a horizontal cross-sectional view of a vacuum cleaner according to an embodiment of the present invention.

1 to 5 , a vacuum cleaner 1 according to an embodiment of the present invention may include a main body 2.

The main body 2 may include: a suction unit 5, which sucks in air containing dust.

The vacuum cleaner 1 may further include a suction unit 5 coupled to the front of the main body 2. The suction unit 5 may guide air containing dust to the main body 2.

The vacuum cleaner 1 may further include a handle unit 3 coupled to the main body 2. The handle unit 3 may be arranged to be opposite to the suction unit 5 on the main body 2.

That is, the main body 2 may be disposed between the suction unit 5 and the handle unit 3 .

The main body 2 may include: a first body 10; and a second body 12 located on the first body 10.

The first body 10 and the second body 12 may be formed in a cylindrical shape, but are not limited thereto.

The suction unit 5 can be coupled to the main body 2 so that the center of the suction unit 5 is approximately located at the boundary between the first body 10 and the second body 12.

The main body 2 may further include: a dust separation unit that separates dust from the air sucked in by the suction unit 5.

The dust separation unit may include: a first dust separation unit 110, which may separate dust using, for example, a cyclonic flow. In this structure, the first body 10 includes the first dust separation unit 110.

The air and dust sucked by the suction unit 5 flow spirally along the inner side of the first dust separating unit 110.

The axis of the cyclonic flow in the first dust separating unit 110 may extend vertically.

The dust separation unit may further include: a second dust separation unit 130, which secondarily separates dust in the air exhausted from the first dust separation unit 110. The second dust separation unit 130 may be disposed inside the first dust separation unit 110 to minimize the size of the dust separation unit. The second dust separation unit 130 may include a plurality of cyclone separator bodies arranged in a row.

As another example, the dust separation unit may include a dust separation unit in which the axis of the cyclonic flow may also extend vertically.

The first body 10 acts as a dust container, which stores the dust separated by the dust separation units 110 and 130. That is, the first body 10 includes: the first dust separation unit 110 and the dust container. The upper part of the first body 10 is the first dust separation unit 110, and the lower part of the first body 10 is the dust container. The first body 10 can be partially or completely transparent or translucent to allow the user to visually check the amount of dust in the dust container.

The main body 2 may further include a main body cover 16 for opening/closing the bottom of the first main body 10. The main body cover 16 may open/close the first main body 10 by rotating.

At least a portion of the second dust separating unit 130 may be disposed within the first body 10.

A dust storage guide 124 that guides dust to be stored and separated by the second dust separation unit 130 may be provided in the first body 10. The dust storage guide 124 may be coupled to the bottom of the second dust separation unit 130 that contacts the top of the body cover 16.

The dust storage guide 124 can divide the inner space of the first body 10 into a first dust storage portion 121 and a second dust storage portion 123, wherein the first dust storage portion 121 is used to store dust separated by the first dust separation unit 110, and the second dust storage portion 123 is used to store dust separated by the second dust separation unit 130.

The inner space of the dust storage guide 124 is the second dust storage portion 123 , and the space between the dust storage guide 124 and the first body 10 is the first dust storage portion 121 .

The dust storage guide 124 of the present embodiment may be at least partially tapered downward. For example, a portion of the upper portion of the dust storage guide 124 may be tapered downward.

In addition, the dust storage guide 124 may have an anti-flying rib 124a extending downward from an upper end of the dust storage guide 124. The anti-flying rib 124a may be formed in, for example, a cylindrical shape, and may surround an upper portion of the dust storage guide 124.

Since the upper portion of the dust storage guide 124 tapers downward, a space is defined between the outer side of the upper portion of the dust storage guide 124 and the anti-flying rib 124a.

As described in the previous embodiment, the cyclone flow generated along the inner side of the first body 10 may move downward. When the cyclone flow contacts the body cover 16 while moving downward, the swirl flow may become an ascending airflow through the body cover 16. If there is an ascending airflow in the first dust storage portion 121, the dust in the first dust storage portion 121 flies upward and flows backward to the second dust separation unit 130.

According to the present invention, in the space between the anti-flying rib 124a and the upper portion of the dust storage guide 124, the ascending airflow in the first dust storage section 121 is changed into a descending airflow due to the anti-flying rib 124a, so the dust in the first dust storage section 121 does not fly upward, and thus it does not flow backward into the second dust separation unit 130.

In addition, because the ribs 124a extend downward from the upper end of the dust storage guide 124, the dust separated by the cyclonic flow in the first dust separation unit 110 can be smoothly sent to the first dust storage portion 121 through the anti-flying ribs 124a.

The body cover 16 can open/close both the first dust storage portion 121 and the second dust storage portion 123.

The vacuum cleaner 1 may further include: a suction motor 20 for generating suction; and a battery 40 for providing power to the suction motor 20.

The suction motor 20 may be disposed in the second body 12. At least a portion of the suction motor 20 may be disposed above the dust separation unit. Therefore, the suction motor 20 is disposed above the first body 10.

The suction motor 20 may be connected to an outlet of the second dust separation unit 130 .

To this end, the main body 2 may further include: a discharge guide 28 connected to the second dust separation unit 130; and a flow guide 22 communicated with the discharge guide 28.

For example, the exhaust guide 28 is disposed on the second dust separation unit 130 , and the flow guide 22 is disposed above the exhaust guide 28 .

In addition, at least a portion of the suction motor 20 is disposed inside the flow guide 22 .

Therefore, the axis of the cyclone flow in the first dust separation unit 110 can pass through the suction motor 20.

When the suction motor 20 is disposed above the second dust separating unit 130, air exhausted from the second dust separating unit 130 may flow directly to the suction motor 20, so a passage between the dust separating unit and the suction motor 20 may be minimized.

The suction motor 20 may include a rotating impeller 200. The impeller 200 may be mounted on a shaft 202. The shaft 202 is disposed vertically.

The suction motor 20 may be arranged so that the impeller 200 is arranged at the upper portion of the suction motor 20. According to this configuration, air may be blown downward in the suction motor 20 through the impeller 200.

An extension line from the shaft 202 (which can be regarded as the rotation axis of the impeller 200) may pass through the first body 10. The rotation axis of the impeller 200 and the axis of the cyclone flow in the first dust separation unit 110 may be on the same line.

According to the present invention, there are the following advantages: the path of the air discharged from the dust separation unit, that is, the air discharged upward from the second dust separation unit 130 flowing to the suction motor 20 can be reduced, and the change of the direction of the air can be reduced, so the loss of airflow can be reduced.

Because the loss of airflow is reduced, the suction force can be increased and the life of the battery 40 used to provide power to the suction motor 20 can be increased.

The vacuum cleaner 1 may further include an upper motor housing 26 covering a portion of the top of the suction motor 20 and a lower motor housing 27 covering a portion of the bottom of the suction motor 20. The lower motor housing 27 may be integrally formed with the second body 12 or may be coupled to the second body 12.

The suction motor 20 may be disposed inside the upper motor housing 26 and the lower motor housing 27 , and the flow guide 22 may be disposed to cover the upper motor housing 26 .

At least a portion of the flow guide 22 can be separated from the upper motor housing 26. In addition, at least a portion of the flow guide 22 can be separated from the second body 12.

Therefore, a first air passage 232 is defined by the inner side of the flow guide 22 and the outer side of the upper motor housing 26 , and a second air passage 234 is defined by the outer side of the flow guide 22 and the inner side of the second body 12 .

According to the present invention, a single flow guide 22 forms the first air passage 232 and the second air passage 234, and the number of components of the air passage can be reduced, thereby simplifying the structure.

The first air passage 232 functions as an intake passage, and the second air passage 234 functions as an exhaust passage.

The air exhausted from the second dust separation unit 130 flows to the suction motor 20 through the first air passage 232, and the air exhausted from the suction motor 20 flows through the second air passage 234 and is then exhausted to the outside.

The handle unit 3 may include: a handle 30 for a user to hold; and a battery case 410 under the handle 30 .

The handle 30 may be disposed behind the suction motor 20 .

Regarding the direction, relative to the suction motor 20 in the vacuum cleaner 1, the direction in which the suction unit 5 is provided is the front direction, and the direction in which the handle 30 is provided is the rear direction.

The battery 40 may be disposed behind the first body 10. Therefore, the suction motor 20 and the battery 40 may be disposed not to overlap vertically with each other but may be disposed at different heights.

According to the present invention, because the heavy suction motor 20 is disposed in front of the handle 30, and the heavy battery 40 is disposed behind the handle 30, the weight can be evenly distributed throughout the vacuum cleaner 1. It is possible to prevent the user's wrist from being injured when the user uses his/her hand to manipulate the handle 30 for cleaning. That is, because the heavy components are distributed at the front and rear and at different heights in the vacuum cleaner 1, it is possible to prevent the center of gravity of the vacuum cleaner 1 from being concentrated on either side.

Because the battery 40 is disposed below the handle 30 and the suction motor 20 is disposed in front of the handle 30, there is no component above the handle 30. That is, the top of the handle 30 forms a part of the appearance of the top of the vacuum cleaner 1.

Therefore, it is possible to prevent any element of the vacuum cleaner 1 from coming into contact with the user's arm when the user operates the handle 30 with his/her hand for cleaning.

The handle 30 may include a first extension portion 310 extending vertically for a user to hold, and a second extension portion 320 extending above the first extension portion 310 toward the suction motor 20. The second extension portion 320 may extend at least partially horizontally.

A stopper 312 for preventing the user's hand holding the first extension portion 310 from moving in the longitudinal direction of the first extension portion 310 (vertical direction in FIG. 2 ) may be formed on the first extension portion 310. The stopper 312 may extend from the first extension portion 310 toward the suction unit 5.

The stopper 312 is spaced apart from the second extension 320. Therefore, the user should use some fingers above the stopper 312 and other fingers below the stopper 312 to hold the first extension 310.

For example, the stop 312 may be located between the index finger and the middle finger.

According to this arrangement, when the user holds the first extension portion 310, the longitudinal axis A1 of the suction unit 5 can pass through the user's wrist.

When the longitudinal axis A1 of the suction unit 5 passes through the user's wrist and the user's arm is stretched, the longitudinal axis A1 of the suction unit 5 can be substantially aligned with the user's stretched arm. Therefore, in this state, it is advantageous that the user uses minimal force when pushing or pulling the vacuum cleaner 1 with the handle 30 with his/her hand.

The handle 30 may include an operation unit 326. For example, the operation unit 326 may be provided on an inclined surface of the second extension portion 320. A command may be input through the operation unit 326 to turn on/off the vacuum cleaner (suction motor).

The operation unit 326 may be disposed to face the user. The operation unit 326 may be disposed opposite to the stopper 312 with the handle 30 therebetween.

The operation unit 326 is disposed higher than the stopper 312. Therefore, the user can easily operate the operation unit 326 with his/her thumb and the first extension portion 310 in his/her hand.

Furthermore, since the operation unit 326 is located outside the first extension portion 310, it is possible to prevent the operation unit 326 from being accidentally operated when the user uses the first extension portion 310 in his/her hand for cleaning.

A display unit 322 for displaying an operation state may be provided on the second extension portion 320. The display unit 322 may be provided, for example, at the top of the second extension portion 320. Therefore, the user can easily check the display unit 322 on the top of the second extension portion 320 when cleaning. The display unit 322 may display, for example, the remaining capacity of the battery 40 and the strength of the suction motor.

The display unit 322 may include a plurality of light emitting units, although not limited thereto. The light emitting units may be separated from each other in the longitudinal direction of the second extension portion 320.

The battery case 410 may be disposed under the first extension portion 310 .

The battery 40 may be detachably coupled to the battery case 410. For example, the battery 40 may be inserted into the battery case 410 from below the battery case 410.

The rear side of the battery case 410 and the rear side of the first extension portion 310 may form a continuous surface. Therefore, the battery case 410 and the first extension portion 310 may appear as a single unit.

When the battery 40 is inserted into the battery case 410, the bottom of the battery 40 may be exposed to the outside. Therefore, when the vacuum cleaner 1 is placed on the floor, the battery 40 may come into contact with the floor.

According to this structure, there is an advantage that the battery 40 can be directly separated from the battery case 410.

In addition, because the bottom of the battery 40 is exposed to the outside, the bottom of the battery 40 can directly contact the air outside the vacuum cleaner 1, so the battery 40 can be cooled more effectively.

The battery case 410 may include an outer case 600 and an inner case 610. The inner case 610 may be inserted under the outer case 600.

The inner housing 610 may be fixed to one or more outer housings 600 and the first body 10. In addition, the battery 40 may be coupled to the inner housing 610.

According to the present invention, the inner case 610 is inserted into the outer case 600, and then the battery 40 is inserted to be coupled to the inner case 610, so it is possible to prevent the outer case 600 from being deformed or damaged when the battery 40 is inserted or separated.

The inner housing 610 may include a charging stand connection terminal 628 for charging the battery 40 coupled to the inner housing 610. The charging stand connection terminal 628 may be brought into contact with a terminal of a charging stand (not shown) by placing the vacuum cleaner 1 on the charging stand.

The battery case 410 may include a battery connection terminal 670 connected to a battery terminal 490 in the battery 40 inserted into the battery case 410. The battery connection terminal 670 may be coupled to the battery terminal 490 through the top of the battery 40.

Obviously, the inner housing 610 may be formed integrally with the outer housing 600 without forming the inner housing 610 separately.

The inner housing 610 may include: a pair of hinge coupling portions 620, wherein the hinge 162 of the body cover 16 is coupled to the hinge coupling portions 620. The hinge coupling portions 620 may be spaced apart from each other by a predetermined distance.

Referring to FIG. 3 , the vacuum cleaner 1 may further include a filter unit 50 having an air outlet 522 for discharging the air that has passed through the suction motor 20. For example, the air outlet 522 may include a plurality of openings that may be arranged in a circumferential manner. Therefore, the air outlet 522 may be arranged in a ring shape.

The filter unit 50 may be detachably coupled to the top of the main body 2. The filter unit 50 may be detachably inserted into the second body 12. In a state where the longitudinal axis A1 is placed horizontally, the air outlet 522 is disposed above the suction motor.

When the filter unit 50 is combined with the main body 2, a portion of the filter unit 50 is located outside the second body 12. Therefore, a portion of the filter unit 50 is inserted into the main body 2 through the open top of the main body 2, and the other portion protrudes outward from the main body 2.

The height of the main body 2 may be substantially the same as the height of the handle 30. Therefore, the filter unit 50 protrudes upward from the main body 2, so the user can easily hold and detach the filter unit 50.

When the filter unit 50 is combined with the main body 2, the air outlet 522 is located at the upper portion of the filter unit 50. Therefore, the air discharged from the suction motor 20 is discharged upward from the main body 2.

According to this embodiment, it is possible to prevent the air discharged from the air outlet 522 from flowing toward the user when the user uses the vacuum cleaner 1 for cleaning.

The main body 2 may further include: a pre-filter 29 for filtering the air flowing into the suction motor 20. The pre-filter 29 may be disposed inside the flow guide 22. In addition, the pre-filter 29 is disposed above the upper motor housing 26 and may surround a portion of the upper motor housing 26. That is, the upper motor housing 26 may include: a filter support for supporting the pre-filter 29.

When the filter unit 50 is mounted on the main body 2, the filter unit 50 may press the pre-filter 29 to prevent the pre-filter 29 from moving.

For example, the filter unit 50 can press the pre-filter 29. Therefore, according to the present invention, a structure for fixing the pre-filter 29 is not required.

Figure 6 is a diagram showing when the filter unit according to an embodiment of the present invention has been separated from the main body; Figure 7 is a diagram showing the bottom of the filter unit according to an embodiment of the present invention; Figure 8 is an exploded three-dimensional diagram of the filter unit shown in Figure 7; and Figure 9 is a cross-sectional three-dimensional diagram of the filter unit shown in Figure 7.

5 to 9 , the filter unit 50 can be separated from the main body 2.

For example, the filter unit 50 can be separated upward from the main body 2.

Since the impeller 200 is located at the upper part of the suction motor 20 , the pre-filter 29 may be disposed to cover the upper motor housing 26 to cover the impeller 200 .

Therefore, when the filter unit 50 is separated from the main body 2, the pre-filter 29 can be exposed to the outside, and thus, the pre-filter 29 can be separated.

The pre-filter 29 may have a knob 29a. The user may separate the pre-filter 29 from the main body 2 by holding the knob 29a of the pre-filter 29 exposed outward and then lifting the pre-filter 29. Since the pre-filter 29 can be separated from the main body 2, the user may easily clean the pre-filter 29.

The filter unit 50 may further include: a filter (auxiliary filter) 560 for filtering air exhausted from the suction motor 20; and a filter frame for supporting the filter (auxiliary filter) 560.

The filter (auxiliary filter) 560 may be, for example, a High Efficiency Particulates Air (HEPA) filter.

The filter (auxiliary filter) 560 may be located around the flow guide 22 to prevent the height of the vacuum cleaner 1 from increasing when the filter unit 50 is coupled to the main body 2.

That is, the filter (auxiliary filter) 560 may be formed in a ring shape, for example, and a portion of the flow guide 22 may be located in an area defined by the filter (auxiliary filter) 560 .

In addition, at least a portion of the pre-filter 29 may be inserted into the area defined by the filter (auxiliary filter) 560. That is, the filter (auxiliary filter) 560 surrounds the pre-filter 29.

The filter frame can be coupled to the flow guide 22 between the second body 12 and the flow guide 22.

The filter frame may have an inner frame 501 and an outer frame 540 , wherein the outer frame 540 is disposed around the inner frame 501 .

The outer side of the inner frame 501 and the inner side of the outer frame 540 are spaced apart from each other, and a filter (auxiliary filter) 560 may be disposed between the inner frame 501 and the outer frame 540 .

The filter frame may further include: an exhaust frame 520 having an air outlet 522 and covering the top of the filter (auxiliary filter) 560; and a filter cover 570 covering the bottom of the filter (auxiliary filter) 560.

In detail, the inner frame 501 may include: a top portion 502; and a circumferential side portion 503 extending downward from the edge of the top portion 502.

The circumferential side portion 503 may include: a first part 503a; and a second part 503b extending downward from the first part 503a and having a diameter greater than that of the first part 503a.

The base 506 for the exhaust frame 520 can be formed between the first part 503a and the second part 503b by the diameter difference between the first part 503a and the second part 503b.

The base 506 is formed along the circumferential side 503 at a predetermined distance below the top 502.

The exhaust frame 520 may be formed in a ring shape so as to be placed on the base 506. In addition, the inner diameter of the exhaust frame 520 may be equal to or greater than the outer diameter of the first part 503a of the circumferential side 503. In addition, the outer diameters of the base 506 and the second part 503b may be greater than the inner diameter of the exhaust frame 520.

Therefore, the exhaust frame 520 can be placed on the base 506, and the top 502 of the inner frame 501 and the first part 503a of the circumferential side 503 are embedded in the exhaust frame 520.

The filter unit 50 may further include an inner decoration member 510 coupled to an edge of the inner frame 501. The inner decoration member 510 may be formed in a ring shape.

The interior decoration component 510 includes a hook 512 for locking the inner frame 501.

A hook coupling hole 508 for locking the hook 512 may be formed in the inner frame 501 .

A hook coupling hole 508 may be formed at the first part 503a of the circumferential side portion 503. In addition, a guide groove 507 for guiding the hook 512 to the hook coupling hole 508 may be formed at the first part 503a of the circumferential side portion 503. The guide groove 507 may extend vertically.

Therefore, when the hook 512 is aligned with the hook coupling hole 508 while moving along the guide groove 507, the hook 512 can be inserted into the hook coupling hole 508.

The exhaust frame 520 is placed on the base 506 of the inner frame 501, and then the interior decoration component 510 can be coupled to the inner frame 501.

To this end, a guide groove 524 for providing a space in which the hook 512 of the interior decoration member 510 can move may be formed on the inner side of the exhaust frame 520. The guide groove 524 may extend vertically.

Therefore, the hook 512 of the interior decoration component 510 can move along the guide groove 507 of the inner frame 501 and the guide groove 524 of the exhaust frame 520.

When the interior decoration component 510 is coupled to the inner frame 501, the interior decoration component 510 can be placed on the top of the exhaust frame 520.

Therefore, according to the present invention, no specific components are required for fixing the exhaust frame 520 to the inner frame 501.

The outer frame 540 may support the exhaust frame 520. The outer frame 540 may be fixed to the exhaust frame 520, for example, by contact engagement with the bottom of the exhaust frame 520. However, it should be noted that the manner in which the exhaust frame 520 and the outer frame 540 are fixed to each other is not limited in the present invention.

A receiving groove 544 for seating the exhaust frame 520 may be formed on the outer frame 540 so that the outer frame 540 supports the exhaust frame 520 .

When the outer frame 540 is fixed to the exhaust frame 520, a filter space is defined between the outer frame 540 and the circumferential side 503 of the inner frame, so the filter (auxiliary filter) 560 can be inserted into the filter space. When the filter (auxiliary filter) 560 is inserted into the filter space, it vertically overlaps the air outlet 522.

The filter unit 50 may further include an exterior decoration member 550 coupled to the outer frame 540. The exterior decoration member 550 may be coupled to the outer frame 540 while surrounding a portion of the circumference of the exhaust frame 520. In addition, the exterior decoration member 550 may surround an upper portion of the outer frame 540. A base step 546 for seating a lower end of the exterior decoration member 550 may be formed at an outer side of the outer frame 540.

One or more coupling protrusions 554 for coupling to the outer frame 540 may be formed on the inner side of the outer decoration member 550 , and one or more coupling grooves 542 for receiving the coupling protrusions 554 may be formed on the outer side of the outer frame 540 .

When the user separates or couples the filter unit 50, an anti-slip portion 552 for preventing the user's hand from slipping may be formed on the outer side of the exterior decoration member 550. The anti-slip portion 552 may be composed of a plurality of protrusions formed on the outer side of the exterior decoration member 550, for example.

A plurality of anti-slip portions 552 may circumferentially surround the exterior decorative member 550 and be spaced apart from one another to effectively prevent the user's hand from slipping.

For example, the filter cover 570 may be formed in a ring shape and have one or more air openings 574 .

The filter cover 570 may cover the filter (auxiliary filter) 560 disposed between the outer frame 540 and the inner frame 501 .

The filter cover 570 may support the bottom of the outer frame 540 and the inner frame 501, and may be combined with the outer frame 540 and the inner frame 501, for example, by bonding.

The filter unit 50 may further have sealing members 530 and 580 to seal the filter unit 50 and the main body 2 when the filter unit 50 is coupled to the main body 2.

FIG. 10 is a cross-sectional view of a filter unit according to an embodiment of the present invention when it is coupled to a main body.

9 and 10 , the sealing members 530 and 580 may include an inner sealing member 530 (or a first sealing member) for preventing the air in the flow guide 22 from leaking to the outside through the hook coupling hole 508 of the inner frame 501.

The inner sealing member 530 may be coupled to the inner side of the circumferential side portion 503 of the inner frame 501 .

In detail, the sealing rib 504 may extend downward from the top 502 of the inner frame 501. The sealing rib 504 is spaced apart from the circumferential side 503 of the inner frame 501. The sealing rib 504 is continuously formed in the circumferential direction of the top 501.

Therefore, a space for inserting the inner sealing member 530 is defined between the sealing rib 504 and the circumferential side portion 503 of the inner frame 501, and a portion of the inner sealing member 530 is fitted in the space.

When the inner sealing member 530 is coupled to the inner frame 501 , the inner sealing member 530 contacts the bottom of the first part 503 a of the circumferential side portion 503 , the inner side of the second part 503 b , and the bottom of the sealing rib 504 .

In addition, when the filter unit 50 is coupled to the main body 2 , the inner sealing member 530 is disposed at the upper end of the flow guide 22 .

Therefore, according to the present invention, the inner sealing member 530 is arranged at the upper end of the flow guide 22 which contacts the bottom of the first part 503a of the circumferential side portion 503, the inner side of the second part 503b, and the bottom of the sealing rib 504, so as to prevent the air flowing through the flow guide 22 from flowing into the hook coupling hole 508.

In addition, the inner sealing member 530 can prevent air from leaking into the gap between the outer side of the flow guide 22 and the inner side of the circumferential side portion 503 of the inner frame 501.

A gap may be provided between the outer side of the filter unit 50 and the inner side of the second body 12 to separate the filter unit 50 from the main body 2.

In addition, the sealing members 530 and 580 may further include: an outer sealing member 580 (or a second sealing member) for preventing the air in the second air channel 234 from flowing into the gap between the outer frame 540 and the second body 12 without passing through the filter (auxiliary filter) 560.

The outer sealing member 580 may be coupled to the edge of the filter cover 570. Although not limited, the outer sealing member 580 may be fitted on the filter cover 570 or may be integrally molded with the filter cover 570 through injection molding.

A supporting step 125 for supporting the outer sealing member 580 may be formed at the inner side of the second body 12. The supporting step 125 may be formed by increasing the thickness of the second body 12.

When the filter unit 50 is coupled to the main body 2, the outer sealing member 580 can be placed on the support step 125.

Therefore, the air in the second air passage 234 can be prevented from flowing into the gap between the outer frame 540 and the inner side of the second body 12.

In addition, when the filter unit 50 is coupled to the main body 2, the exterior decoration member 550 is placed on the second body 12 of the main body 2. Therefore, the user can separate the filter unit 50 from the main body 2 by holding the exterior decoration member 550 and rotating the filter unit 50 in a predetermined direction.

In addition, when the filter unit 50 is coupled to the main body 2, a portion of the filter (auxiliary filter) 560 may be located inside the main body, and another portion may be located outside the main body 2.

According to the present invention, since a part of the filter unit 50 is exposed to the outside of the main body 2, the filter unit 50 can be held. In addition, the filter (auxiliary filter) 560 can be located inside the part protruding outside the main body 2, so the size of the filter (auxiliary filter) 560 can be increased. Therefore, the area of the filter (auxiliary filter) 560 that can come into contact with the air increases, and the ability to purify the air can be improved.

Figure 11 is a three-dimensional view of a filter cover according to an embodiment of the present invention; Figure 12 is a cross-sectional view after the inner frame is coupled to the filter cover shown in Figure 11; Figure 13 is a three-dimensional view of a flow guide according to an embodiment of the present invention; and Figure 14 is a plan view of a flow guide according to an embodiment of the present invention.

10 to 14 , the filter cover 570 may include: an inner body 571 ; an outer body 572 spaced apart from the inner body 571 ; and a connecting body 573 that connects the inner body 571 and the outer body 572 to each other.

The inner body 571 and the outer body 572 may be formed in a ring shape.

One or more air openings 574 are formed by connecting the body 573.

A plurality of frame support ribs 575 for supporting the bottom 509 of the inner frame 501 may be formed on the inner side of the inner body 571. The frame support ribs 575 may be spaced circumferentially on the inner body 571.

A rib coupling portion 577 for coupling the flow guide 22 may be formed on the inner side of the inner body 571 .

The inner body 571 may include an extension portion 576 so that the rib coupling portion 577 may be inclined downward. The extension portion 576 protrudes downward at the bottom of the inner body 571, and the rib coupling portion 577 may be provided at the extension portion 576.

Thus, the rib coupling portion 577 extends circumferentially downward at an angle from the end of the frame support rib 575.

The downwardly inclined rib coupling portion 577 is used to couple the filter unit 50 and the main body or separate the filter unit 50 and the main body by rotating and lifting the filter unit 50 when separating the filter unit 50 from the main body.

When the filter unit 50 is lifted during the separation process, the user can know that the filter 50 is being separated.

In order to separate the filter unit 50 by rotating the filter unit 50, a rotational force should be applied to the filter unit 50, so the filter unit 50 is not separated from the main body 2 even if it is pulled out. Therefore, the filter unit 50 can be prevented from being accidentally separated from the main body 2.

Each of the rib coupling portions 577 may include a slot 578 for receiving a fixing protrusion 2229 of the flow guide 22, which will be described below. The slot 578 may be a slot or a hole.

The inner frame 501 may further include a contact portion 509a extending downward from the bottom 509 of the inner frame 501. When the filter cover 570 and the inner frame 501 are assembled, the contact portion 509a may contact the side surface of the frame support rib 575.

The inner frame 501 may include: a recessed portion 509 b recessed upward to form a rib receiving portion 579 for receiving the fixing rib 228 of the flow guide 22 .

When the inner frame 501 is assembled with the filter cover 570 , the recessed portion 509 b is spaced apart upward from the coupling rib 557 .

The recessed portion 509b may be tilted so that the fixing rib 228 of the flow guide 22 may be inserted into the rib receiving portion 579 between the recessed portion 509b and the rib coupling portion 577 when the filter unit 50 is rotated and moved downward.

Therefore, the rib receiving portion 579 extends downward at an angle. The rib receiving portion 579 can be regarded as a space between the inner frame 501 and the filter cover 570. That is, the fixing rib 228 of the flow guide 22 can be embedded between the inner frame 501 and the filter cover 570.

The flow guide 22 may include a guide body 220 that is open at the top and the bottom. The guide body 220 may include a channel wall 222 that is used to form a first air channel 232 through which the air discharged from the second dust separation unit 130 flows.

The channel wall 222 can protrude radially from the guide body 220.

The flow guide 22 may have a plurality of channel walls 222 spaced circumferentially apart to provide a smooth airflow.

The suction motor 20 is positioned inside the flow guide 22, but the gap between the flow guide 22 and the suction motor 20 should be small in order not to increase the size of the main body 2. However, when the gap between the flow guide 22 and the suction motor 20 is small, the airflow is not stable.

However, when the channel wall 222 protrudes from the guide body 220, as in the present invention, a sufficient cross-sectional area of the channel for airflow can be ensured by the channel wall 222, so the air can flow more smoothly.

The channel wall 222 is formed at a predetermined distance below the upper end of the flow guide 22 so that the upper portion of the flow guide 22 can be inserted into the inner frame 501 and the channel wall 222 does not interfere with the filter unit 50.

In addition, the outer diameter of the upper portion of the guide body 220 may be smaller than the inner diameter of the circumferential side of the inner frame 501. Therefore, when the filter unit 50 is coupled to the main body 2, the upper portion of the flow guide 22 is inserted into the filter unit 50, so the inner sealing member 530 may be disposed at the upper end of the flow guide 22.

According to the present invention, since a portion of the flow guide 22 is inserted into the filter unit 50, an increase in the height of the vacuum cleaner 1 can be minimized.

A filter support step 225 may be formed at an inner side of the guide body 220 to support a lower end of the pre-filter 29. The filter support step 225 may protrude at an inner side of the guide body 220.

A fastening portion 226 for fastening the upper motor housing 26 and the lower motor housing 27 may be formed at the lower end of the guide body 220.

The fastening portion 226 of the guide body 220 can be placed on the upper motor housing 26. In this state, the fastener S1 can be coupled to the upper motor housing 26 from above through the fastening portion 226.

The fastener S1 can be coupled to the discharge guide 28 after passing through the upper motor housing 26 and the lower motor housing 27. According to this structure, a small number of fasteners can be used to fasten the components, so the structure is simple and the assembly is easy.

The flow guide 22 may include a fixing rib 228 for coupling to the filter unit 50. The fixing rib 228 may extend circumferentially at an angle so that when the filter unit 50 rotates, the height of the filter unit 50 may be changed. In addition, a fixing protrusion 229 may be formed at the bottom of each of the fixing ribs 228.

At the same time, a reinforcing rib 227 may be formed on the channel wall 222. The flow guide 22 is spaced apart from the inner side of the second body 12 to form a second air channel 234.

The reinforcing ribs 227 may extend from the channel wall 222 toward the second body 12 .

As described above, because the flow guide 22 is spaced apart from the inner side of the second body 12 , when an external force is applied to the second body 12 , the second body 12 may be deformed toward the flow guide 22 .

However, according to the present invention, since the reinforcing ribs 227 are formed on the channel wall 222, even if an external force is applied to the second body 12, the second body 12 will still be in contact with the reinforcing ribs 227, so the deformation of the second body 12 can be limited.

Because the channel wall 222 protrudes from the guide body 220, when the reinforcing rib 227 is formed on the channel wall 222, the length of the reinforcing rib 227 can be reduced.

Figure 15 is a diagram before the filter unit according to an embodiment of the present invention is coupled to the flow guide; Figure 16 is a diagram after the filter unit according to an embodiment of the present invention is coupled to the flow guide.

The process of assembling the filter unit 50 is described with reference to FIGS. 15 and 16 .

A portion of the lower portion of the filter unit 50 is inserted into the second body 12 to couple the filter unit 50 to the main body 2.

Therefore, the rib receiving portion 579 of the filter unit 50 and the fixing rib 228 can be aligned.

In this state, the fixing rib 228 is placed in the rib receiving portion 579 by rotating the filter unit 50. The rib receiving portion 579 may be positioned higher than the fixing rib 228 so that the fixing rib 228 can be easily inserted into the rib receiving portion 579.

Because the fixing ribs 228 extend at an angle, the filter unit 50 moves downward through the fixing ribs 228 when rotating.

When the fixing protrusion 229 is inserted into the narrow groove 578 of the rib coupling portion 577 and the fixing rib 228 is inserted into the rib receiving portion 579, the filter unit 50 and the main body 2, that is, the flow guide 22 are assembled.

At the same time, the filter unit 50 is rotated in another direction to separate the filter unit 50 from the main body 2. Since the fixing rib 228 extends at an angle, the filter unit 50 moves upward through the fixing rib 228 when rotating in this direction. When the fixing rib 228 is separated from the rib receiving portion 579, the filter unit 50 is separated from the main body 2.

The filter unit 50 can be separated from the main body 2 by lifting the filter unit 50 in this state.

FIG. 17 is a diagram showing the structure of a motor housing and a second body according to an embodiment of the present invention.

5 and 17 , the lower motor housing 27 may be integrally formed with the second body 12 .

A hole 273 for air flowing along the exhaust guide 28 may be formed in the lower motor housing 27.

The lower motor housing 27 can support the upper motor housing 26. The first seal 274 can be disposed between the lower motor housing 27 and the upper motor housing 26.

The lower motor housing 27 may further include an air guide 272 for guiding the air exhausted from the suction motor 20 to the second air passage 234 .

The upper motor housing 26 can support the flow guide 22. The second seal 274 can be disposed between the upper motor housing 26 and the flow guide 22.

A hole 262 may also be formed in the upper motor housing 26 , wherein the air having passed through the hole 273 of the lower motor housing 27 passes through the hole 262 .

FIG. 18 is a longitudinal cross-sectional view showing the airflow in a vacuum cleaner according to an embodiment of the present invention; FIG. 19 is a horizontal cross-sectional view showing the airflow in a vacuum cleaner according to an embodiment of the present invention.

The airflow in the vacuum cleaner 1 is described with reference to FIGS. 17 to 19 .

The air and dust sucked by the suction unit 5 of the suction motor 20 are separated from each other while flowing along the inner side of the first dust separating unit 110.

The dust separated from the air falls into the first dust storage part 121. The air separated from the dust flows into the second dust separation unit 130. The air flowing in the second dust separation unit 130 is separated from the dust again.

The dust separated from the air in the second dust separation unit 130 falls into the second dust storage portion 123. On the other hand, the air separated from the dust in the second dust separation unit 130 is discharged upward from the second dust separation unit 130 to the suction motor 20.

The air exhausted from the second dust separation unit 130 flows through the exhaust guide 28, passes through the hole 273 of the lower motor housing 27, and then keeps flowing upward through the first air passage 232 of the flow guide 22. In addition, the air in the first air passage 232 passes through the pre-filter 29.

The air that has passed through the pre-filter 29 passes through the suction motor 20 in the lower motor housing 27. The air flows in the suction motor 20 through the impeller 200 and is then discharged to the lower motor housing 27. The air discharged into the lower motor housing 27 changes direction through the air guide 272 and is sent to the second air passage 234.

In addition, the air flowing into the second air passage 234 is discharged to the outside through the air outlet 522 after passing through the filter (auxiliary filter) 560 .

According to the present invention, the air passage is formed only in the main body, not in the handle unit 3. Therefore, there is no need to seal the structure of the node between the handle unit 3 and the main body 2 when the handle unit 3 is coupled to the main body 2. Therefore, the structure of coupling the handle unit 3 to the main body 2 is simple, and the coupling is easy.

Figure 20 is a diagram showing a battery according to an embodiment of the present invention when it has been separated from a battery case; Figure 21 is a three-dimensional diagram of a battery according to an embodiment of the present invention; and Figure 22 is a diagram showing a coupling groove of a battery case according to an embodiment of the present invention.

20 to 22 , the battery 40 may include: a plurality of battery cells (not shown); and a frame 450 for protecting the battery cells.

A protrusion 460 is formed at the top of the frame 450 , and a terminal 462 may be disposed in the protrusion 460 .

The battery 40 may include a plurality of coupling portions 470 and 480. The coupling portions 470 and 480 may include a first coupling portion 470 disposed at a first side of the frame 450 and a second coupling portion 480 disposed at a second side of the frame 450. The first coupling portion 470 and the second coupling portion 480 may be disposed, for example, opposite to each other.

The first coupling portion 470 may be a hook rotatably coupled to the frame 450 .

When the battery 40 is inserted into the battery case 410, the first coupling portion 470 may be coupled to the hinge coupling portion 420, for example. Therefore, the hinge coupling portion 420 may be referred to as a battery coupling portion.

A locking rib 422 for locking a portion of the first coupling portion 470 may be formed on the hinge coupling portion 420 .

As another example, the hinge coupling portion 420 may be integrally formed with the battery case 410 , or the locking rib 422 may be formed on the battery case 410 .

The second coupling portion 480 may be a hook formed integrally with the frame 450 and may be deformed by an external force.

An opening 411 for inserting the battery 40 is formed at the bottom of the battery case 410. An exposing opening 415 for exposing the second coupling part 480 to the outside may be formed so that the second coupling part 480 can operate with the battery 40 in the battery case 410.

A coupling groove 416 for coupling the second coupling portion 480 may be formed above the exposed opening 415 in the battery case 410 .

When the battery 40 is inserted into the battery case 410 , a space 930 for operating the first coupling portion 470 is defined between the dust container 50 and the first coupling portion 470 .

Therefore, the user can put a finger into the space 930 and unlock the locking rib 422 from the first coupling portion 470. In addition, the user can unlock the second coupling portion 480 from the battery case 410 by operating the second coupling portion 480 exposed to the outside of the battery case 410.

According to the present invention, since the battery 40 can be separated from the battery case 410, the battery 40 can be charged by simply placing it on the charging stand.

Furthermore, since the vacuum cleaner 1 includes the main body terminal 1000, the battery 40 can be charged by placing the vacuum cleaner 1 and the battery 40 in the battery case 410 on a charging stand.

Figure 23 shows the vacuum cleaner equipped with a nozzle when used to clean the floor.

23, an extension tube 700 having a suction nozzle 710 extending from a lower end may be connected to the suction unit 5 of the vacuum cleaner 1 of the present invention.

In this state, the user can clean the floor by moving the suction nozzle 710 on the floor.

When the user performs cleaning using the suction nozzle 710 of the present invention, he/she can perform cleaning while changing the angle between the extension tube 700 and the floor from about 45 degrees.

The suction motor 20 and the battery 40 may be positioned relative to each other with a vertical line VL passing through the lowermost end of the first body 10 between them. That is, the suction motor 20 is located on one side of the vertical line VL (e.g., before the vertical line VL), and the battery 40 is located on the other side (e.g., after the vertical line VL). The vertical line VL may pass through the handle 30.

In addition, in the state shown in FIG. 23 , the suction motor 20 and the battery 40 are at almost the same height from the floor.

Therefore, when the user holds the handle 30 and sweeps the floor, the weight of the vacuum cleaner is balanced on the front and rear sides from the user's hand holding the handle, thereby maintaining weight balance. In this case, the user can use the vacuum cleaner 1 to clean with less force, and injuries to the user's wrist can be prevented.

Furthermore, during the floor cleaning process, as shown in FIG. 23 , the filter unit 50 is disposed before the vertical line VL, and the user's hand holding the handle is located behind the vertical line VL. Therefore, the air discharged through the filter unit 50 flows away from the handle 30, so that the air discharged through the filter unit 50 can be prevented from flowing toward the user's hand.

Obviously, depending on the angle between the extension pipe 700 and the floor, only a portion of the suction motor 20 and the battery 40 are positioned relative to each other with respect to the vertical line VL therebetween. This situation corresponds to the situation of cleaning a specific space such as a window frame or a sofa.

FIG. 24 is a diagram showing a vacuum cleaner according to another embodiment of the present invention.

Except the shape of the discharge cover, this embodiment is the same as the previous embodiment. Therefore, only the characteristic part of this embodiment is described below.

24, the filter unit 811a of the present embodiment may have a flow guide 813a for guiding the discharged air.

In detail, the plurality of flow guides 813a are provided with gaps in the circumferential direction of the filter unit 811a. The spaces between the flow guides 813a serve as air outlets 812a.

The flow guide 813a can be tilted from the vertical line.

According to the present embodiment, similarly, the air discharged from the air outlet 812a can be prevented from flowing toward the user when the user uses the nozzle for cleaning.

In addition, the filter unit 811a is disposed at the top of the vacuum cleaner, so that dust around the vacuum cleaner can be prevented from flying due to air discharged from the air outlet 812a.

FIG. 25 is a diagram showing air flow in a vacuum cleaner according to another embodiment of the present invention.

Except the position of the impeller in the suction motor, this embodiment is the same as the previous embodiment. Therefore, only the characteristic part of this embodiment is described below.

25, the suction motor 20a of the present embodiment is disposed in a motor housing, wherein an impeller 200a is provided at the lower portion. That is, the suction motor 20a may be arranged to have an air inlet facing the second dust separation unit 130.

According to the present embodiment, the air discharged from the second dust separating unit 130 directly flows upward into the impeller 200a, and the air having passed through the impeller 200a keeps flowing upward so as to be discharged from the vacuum cleaner.

According to the arrangement of the suction motor, the passage of air discharged from the second dust separation unit 130 to the vacuum cleaner is minimized, so that the flow loss is minimized.

Figure 26 is a diagram showing the lower structure of a vacuum cleaner according to another embodiment of the present invention; Figure 27 is a three-dimensional diagram of a main body cover according to another embodiment of the present invention; and Figure 28 is a diagram showing the main body cover that has been turned away from the state of Figure 26.

26 to 28 , the main body cover 920 can open/close the bottom of the first main body 910 by rotating.

The body cover 920 may include a hinge 922 for rotation. The hinge 922 may be coupled to the first body 910 or an independent hinge coupling portion on the first body 910. When the hinge coupling portion is formed to be separated from the first body 910, the hinge coupling portion may be coupled to the first body 910.

The hinge 922 of the body cover 920 can be located between the axis A2 of the cyclonic flow and the battery 40.

Therefore, when the body cover 920 rotates around the hinge 922, the body cover 920 rotates toward the user, as shown in FIG. 27 .

After the body cover 920 is rotated toward the user, the body cover 920 prevents dust in the first body 910 from flying toward the user when the dust falls.

The body cover 920 may include: a coupling rod 950 that can be moved by a user and coupled to the first body 910. The coupling rod 950 can be coupled in parallel with the longitudinal axis of the suction unit 5.

The body cover 920 may include a first guide 924 that can guide the coupling rod 950 and prevent the coupling rod 950 from being separated downward. The first guide 924 extends downward from the body cover 920, and at least a portion of the first guide 924 is located below the coupling rod 950.

The body cover 920 may further include a second guide 926 that can guide the coupling rod 950 and prevent the coupling rod 950 from being separated downward. The second guide 926 protrudes from one side of the body cover 920 and can pass through the coupling rod 950.

The second guide member 926 may pass through the coupling rod 950 parallel to the longitudinal axis of the suction unit 5. The hole 954 of the second guide member 926 may be formed in the coupling rod 950.

The coupling rod 950 may have a ring 952 for the user to easily operate the coupling rod 950 by placing a finger therein. The ring 952 may be located between the hinge 922 of the body cover 920 and the axis A2 of the cyclonic flow so that the user can easily contact the ring 952.

The coupling rod 950 includes a coupling hook 956 , and the first body 910 may include: a hook groove 914 for locking the coupling hook 956 .

The coupling hook 956 can be locked to the hook groove 914 inside the first body 910. Although not shown in the figure, an elastic member can be provided between the body cover 920 and the coupling rod 950, wherein the elastic member applies elastic force to the coupling rod 950 to keep the coupling hook 956 locked in the hook groove 914.

When the user pulls the ring portion 952 of the coupling rod 950 toward himself/herself, the coupling hook 956 is pulled out from the hook groove 914, so that the main body cover 920 can be rotated.

On the other hand, the hinge coupling portion may include a main body terminal 1000 for charging the battery 40 in the battery case 410. The charging stand terminal may be brought into contact with the main body terminal 1000 by placing the vacuum cleaner 1 on a charging stand (not shown).

The main body terminal 1000 is provided at the bottom of the hinge coupling portion, but can be separated from the floor when the vacuum cleaner 1 is placed on the floor. Therefore, damage to the main body terminal 1000 can be prevented.

1: Vacuum cleaner 2: Main body 3: Handle unit 5: Suction unit 10: First body 12: Second body 16: Body cover 20, 20a: Suction motor 22: Flow guide 26: Upper motor housing 27: Lower motor housing 28: Discharge guide 29: Pre-filter 29a: Knob 30: Handle 40: Battery 50: Filter unit 110: First dust separator unit 121: First dust storage unit 123: Second dust storage unit 124: Dust storage guide 124a: Anti-fly rib 125: Support ladder 130: Second dust separator unit 162: Hinge 200: Impeller 200a: Impeller 202: Shaft 220: Guide body 222: Channel wall 225: Filter support step 226: Fastening portion 227: Reinforcement rib 228: Fixing rib 229: Fixing protrusion 232: First air channel 234: Second air channel 262, 273: Hole 272: Air guide 274: First sealing member 310: First extension 312: Stopper 320: Second extension 322: Display unit 326: Operation unit 410: Battery housing 411: opening 415: exposed opening 416: coupling groove 420: hinge coupling part 422: locking rib 450: frame 460: protrusion 462: terminal 470, 480: coupling part (first coupling part, second coupling part) 490: battery terminal 501: inner frame 502: top 503: circumferential side 503a: first part 503b: second part 504: sealing rib 506: seat 507: guide groove 508: hook coupling hole 509: bottom 509a: contact part 509b: recessed part 510: interior decorative member 512: hook 520: Exhaust frame 522: Air outlet 524: Guide groove 530, 580: Sealing member (inner sealing member, outer sealing member) 540: Outer frame 542: Coupling groove 544: Storage groove 546: Base step 550: Exterior decorative member 552: Anti-slip part 554: Coupling protrusion 560: Filter (auxiliary filter) 570: Filter cover 571: Inner body 572: Outer body 573: Connecting body 574: Air opening 575: Frame support rib 576: Extension part 577: Rib coupling part 578: Slot 579: Rib storage part 620: Hinge coupling part 628: Charging station connection terminal 700: Extension tube 710: Suction nozzle 811a: Filter unit 812a: Air outlet 813a: Flow guide 910: First body 914: Hook groove 920: Body cover 922: Hinge 924: First guide 926: Second guide 930: Space 950: Coupling rod 952: Ring part 954: Hole 956: Coupling hook 1000: Body terminal A1: Longitudinal axis A2: Axis S1: Fastener VL: Vertical line

Figure 1 is a three-dimensional view of a vacuum cleaner according to an embodiment of the present invention; Figure 2 is a side view of a vacuum cleaner according to an embodiment of the present invention; Figure 3 is a plan view of a vacuum cleaner according to an embodiment of the present invention; Figure 4 is a three-dimensional view of a vacuum cleaner according to an embodiment of the present invention when viewed from below; Figure 5 is a vertical cross-sectional view of a vacuum cleaner according to an embodiment of the present invention; Figure 6 is a view showing when the filter unit according to an embodiment of the present invention has been separated from the main body; Figure 7 is a view showing the bottom of the filter unit according to an embodiment of the present invention; Figure 8 is an exploded three-dimensional view of the filter unit shown in Figure 7; FIG. 9 is a cross-sectional perspective view of the filter unit shown in FIG. 7; FIG. 10 is a cross-sectional view when the filter unit according to an embodiment of the present invention is coupled to the main body; FIG. 11 is a perspective view of the filter cover according to an embodiment of the present invention; FIG. 12 is a cross-sectional view after the inner frame is coupled to the filter cover shown in FIG. 11; FIG. 13 is a perspective view of the flow guide according to an embodiment of the present invention; FIG. 14 is a plan view of the flow guide according to an embodiment of the present invention; FIG. 15 is a view before the filter unit according to an embodiment of the present invention is coupled to the flow guide; Figure 16 is a diagram after the filter unit according to an embodiment of the present invention is coupled to the flow guide; Figure 17 is a diagram showing the structure of the motor housing and the second body according to an embodiment of the present invention; Figure 18 is a diagram showing the airflow in the vacuum cleaner according to an embodiment of the present invention; Figure 19 is a horizontal cross-sectional diagram showing the airflow in the vacuum cleaner according to an embodiment of the present invention; Figure 20 is a diagram when the battery according to an embodiment of the present invention has been separated from the battery housing; Figure 21 is a three-dimensional diagram of the battery according to an embodiment of the present invention; Figure 22 is a diagram showing the coupling groove of the battery housing according to an embodiment of the present invention; FIG. 23 is a diagram of a vacuum cleaner equipped with a suction unit when used to clean a floor; FIG. 24 is a diagram showing a vacuum cleaner according to another embodiment of the present invention; FIG. 25 is a diagram showing airflow in a vacuum cleaner according to another embodiment of the present invention; FIG. 26 is a diagram showing the lower structure of a vacuum cleaner according to another embodiment of the present invention; FIG. 27 is a three-dimensional diagram of a main body cover according to another embodiment of the present invention; and FIG. 28 is a diagram showing the main body cover that has been turned away from the state of FIG. 26.

5: Suction unit

10: The first entity

12: Second body

16: Main body cover

20: Suction motor

22: Flow guide

26: Mount the motor housing

27: Lower motor housing

28: Discharge guide

29: Pre-filter

30: Handle

40:Battery

50:Filter unit

110: First dust separation unit

121: First dust storage unit

123: Second dust storage unit

124: Dust storage guide

124a: Anti-fly ribs

130: Second dust separation unit

200: Impeller

202: Axis

220: Guide body

222: Channel wall

225: Filter support ladder

226: Fastening part

227: Reinforced ribs

228:Fixed ribs

229:Fixed protrusion

232: First air channel

234: Second air channel

410:Battery case

A1: Longitudinal axis

Claims (15)

A handheld vacuum cleaner comprises: a suction inlet configured to suck air into the handheld vacuum cleaner; a first dust separation unit configured to separate dust from the air sucked through the suction inlet; a second dust separation unit configured to separate dust from the air discharged from the first dust separation unit; a suction motor disposed above the second dust separation unit and comprising an impeller configured to rotate and suck air through the suction inlet; a first filter surrounding at least a portion of the suction motor in an axial direction of the suction motor and configured to filter the air discharged from the second dust separation unit to the suction motor; a main body accommodating the suction motor and the first filter; and A filter unit is coupled to the main body and configured to support the first filter in the main body, the filter unit has a second filter configured to filter the air discharged to the outside of the handheld vacuum cleaner, wherein, based on the filter unit being separated from the main body along a first direction, the first filter and the second filter are configured to be separated to the outside of the handheld vacuum cleaner along the first direction. A handheld vacuum cleaner as claimed in claim 1, wherein the suction motor is positioned directly above at least a portion of the second dust separation unit. A handheld vacuum cleaner as claimed in claim 1, wherein the main body defines an opening, and when the filter unit is separated from the main body, the first filter passes through the opening to the outside. A handheld vacuum cleaner as claimed in claim 3, wherein, when the filter unit is coupled to the main body, the first filter is disposed below the opening and is pressed by the filter unit. A handheld vacuum cleaner as claimed in claim 1, wherein the first filter is configured to be separated based on the filter unit being separated. A handheld vacuum cleaner as claimed in claim 1, wherein the filter unit is configured to be separated from the main body when the suction motor is positioned in the main body. A handheld vacuum cleaner as claimed in claim 1, wherein, when the filter unit is coupled to the main body, at least a portion of the second filter is positioned above the first filter. A handheld vacuum cleaner as claimed in claim 1, wherein the filter unit is configured to be coupled to or separated from the main body by being rotated. A handheld vacuum cleaner as claimed in claim 1, wherein the outer diameter of the second filter is larger than the outer diameter of the first filter. A handheld vacuum cleaner as claimed in claim 1, wherein the first filter is configured to be separated from the main body based on the separation of the second filter from the main body. A handheld vacuum cleaner as claimed in claim 10, wherein the first filter is configured to be exposed to the outside through an opening defined in the main body based on the filter unit being separated from the main body. The handheld vacuum cleaner of claim 1 further comprises: A handle coupled to the main body and extending in a direction intersecting a longitudinal axis of the suction inlet. A handheld vacuum cleaner as claimed in claim 9, wherein the first filter and the second filter are separated from a rotation axis of the impeller in a radial direction. A handheld vacuum cleaner as claimed in claim 13, wherein the first filter and the second filter extend in a circumferential direction around the rotation axis of the impeller. The handheld vacuum cleaner of claim 1 further comprises: A dust container, which is arranged at a position opposite to the filter unit relative to the suction motor and opens in a direction opposite to a separation direction of the first filter and the second filter.

Images