RU2697039C1 - Vacuum cleaner - Google Patents

Abstract

FIELD: personal articles and house appliances.SUBSTANCE: vacuum cleaner includes a vacuum cleaner body; dust collector; a cover element installed on the upper section of the vacuum cleaner body with possibility of opening and closing and formation of the front surface and the upper surface of the vacuum cleaner body; suction hose provided on cover element front surface; hole formed on cover element front surface with possibility to communicate with suction hose; suction port; outlet port; the main electric motor and the outlet hole formed on the vacuum cleaner body rear surface so that it is located in the position below the hole, at that the air introduced through the hole is released into the outlet hole through the vacuum cleaner body inner part.EFFECT: proposed vacuum cleaner.20 cl, 57 dwg

Description

FIELD OF THE INVENTION

A vacuum cleaner is disclosed herein.

State of the art

Typically, a vacuum cleaner is a device that absorbs dust and foreign matter on a surface that must be cleaned using a suction motor provided in the main body, and then filters dust and foreign matter in the interior of the main body.

The above vacuum cleaner can be classified into a vertical vacuum cleaner in which the suction nozzle is connected to the main body with the ability to move along with the main body, and a cassette vacuum cleaner in which the suction nozzle is connected to the main body by means of a connecting pipe, handle, hose, etc. .

In the publication of the patent (Korea) No.10-2012-0004100 (published January 12, 2012) as a prior art document, a cassette vacuum cleaner is disclosed.

SUMMARY OF THE INVENTION

Technical challenge

The present invention is directed to a vacuum cleaner that has the ability to improve air flow in a vacuum cleaner body.

In addition, the present invention is directed to a vacuum cleaner that is able to cool a PCB using air flowing in a vacuum cleaner body.

In addition, the present invention is directed to a vacuum cleaner that is able to cool a battery pack using air flowing in a vacuum cleaner body.

In addition, the present invention is directed to a vacuum cleaner, which has the ability to reduce the level of noise generated during operation of a vacuum cleaner.

Technical solution

According to an aspect of the present invention, there is provided a vacuum cleaner including an opening configured to communicate with a suction hose provided on a front surface of a lid member mounted on an upper portion of a cleaner body to open and close; and an outlet formed on the rear surface of the vacuum cleaner body so that it is positioned below the hole, with air introduced through the hole being discharged into the outlet through the inside of the vacuum cleaner body.

The dust bag may be located in the cleaner body so that it is inclined, and the outlet port of the dust bag may be located towards the inside of the cleaner body.

The suction port and the outlet port of the dust collector can be placed front and rear in series along the center of the vacuum cleaner body.

According to another aspect of the present invention, there is provided a vacuum cleaner including a support frame configured to separate an interior of a cleaner body; a main electric motor provided in one space divided by a supporting frame and configured to suck in dust and move air; a frame hole formed in the carrier frame through which air is discharged from the main electric motor; a filter unit located so that it faces the hole of the frame, and is configured to filter dust in the air discharged by the main electric motor; and a PCB provided inside the vacuum cleaner body and cooled by air passing through the filter unit.

The first side wall and the second side wall may be formed in the carrier frame, and the main electric motor may be adjacent to the first side wall, and the frame hole may be formed on the lower surface of the patch plate corresponding to the space between the main electric motor and the second side wall.

A PCB may be located between the outlet port of the dust box provided in the cleaner body and the outlet of the cleaner body.

A partition made with the possibility of dividing the space to accommodate the filter unit and the space to accommodate the PCB may be formed on the bottom surface of the patch plate on which the main electric motor is mounted, and a partition opening that is open to allow air passing through the filter unit to the PCB may be formed in the septum.

The battery pack may be provided under the filter unit, and the battery pack may be cooled by a portion of the air passing through the filter unit, with the exception of the air for cooling the PCB.

According to yet another aspect of the present invention, there is provided a vacuum cleaner including a main electric motor provided inside a cleaner body and configured to forcely direct air flow; a battery pack provided inside the cleaner body; a supporting frame made with the possibility of dividing the space in which the main electric motor and the battery pack are located; a frame hole formed in the carrier frame with the possibility of opening so that the air discharged from the main electric motor is directed to the battery pack; and a filter unit provided inside the vacuum cleaner body and configured to filter dust in the air discharged from the main electric motor.

According to yet another aspect of the present invention, there is provided a vacuum cleaner including a dust collector provided in a cleaner body and having a suction port and an exhaust port arranged so that they face each other; and a pre-filter assembly provided in the vacuum cleaner body and having a guide hole formed to direct air discharged from the outlet port to the main electric motor, wherein the hole, the suction port, the outlet port and the guide hole are located in a straight line.

In addition, the hole, the suction port, the exhaust port and the guide hole can be arranged in series from the front side to the rear side.

In addition, the hole, the suction port, the exhaust port and the guide hole can be placed on the extension line passing through the center of the vacuum cleaner body.

In addition, the hole, the suction port, the exhaust port and the guide hole can be placed down sequentially.

Advantages of the Invention

According to a vacuum cleaner according to an embodiment of the present invention, the following advantages can be expected.

Since the suction hose is connected to the cover member, and air is sucked from the upper end of the front surface of the vacuum cleaner body of the vacuum cleaner and then discharged through an outlet located in a lower portion of the rear surface of the vacuum cleaner body, air flow can be improved.

In addition, the hole that is in communication with the suction hose as the air flow path, the suction port and the exhaust port of the dust collector, and the guide hole for directing air into the main electric motor are arranged in a straight line, and therefore, the air flow can be further improved.

In addition, the opening, the suction port, the exhaust port, the guide hole and the exhaust hole are arranged sequentially from the front side to the rear side, and therefore, the air flow can be further improved.

In addition, the hole, the suction port, the exhaust port, the guide hole and the exhaust hole are located on the extension line passing through the center of the vacuum cleaner body, and therefore, the air flow can be further improved.

In addition, the hole, the suction port, the exhaust port, the guide hole and the exhaust hole are arranged downward in series, and therefore, the air flow can be further improved.

In addition, part of the air discharged from the main electric motor is not directly discharged outward, but is introduced into the main PCB, and therefore, the main PCB can be cooled effectively.

In addition, since air discharged from the main electric motor can be discharged outward through the battery pack inside the vacuum cleaner body, the battery pack can also be cooled effectively.

In addition, the main electric motor can be located adjacent to one of the pair of side walls, and air discharged from the main electric motor can be discharged through the opening of the frame between the main electric motor and the side wall, which is remote from the main electric motor. Therefore, the air stream can be directive and, therefore, can flow in one direction, and therefore, the noise of the air stream generated when the main electric motor is driven can be reduced. In a vacuum cleaner according to an embodiment of the present invention, since the center of gravity of the vacuum cleaner body is located in the second half portion, the vacuum cleaner body can rotate around the conveyor wheel and can be kept stable by contact with the ground.

In addition, since the center of gravity is located in the second half section, when the movement of the vacuum cleaner is stopped, the vacuum cleaner body can rotate and then can be in an inclined state, and when the vacuum cleaner body moves, a change in its angle occurs by rotation, and therefore stopped or movable the state of the vacuum cleaner can be accurately determined.

In addition, a detection part for detecting the position of the vacuum cleaner body, i.e. its slope or rotation angle are provided inside the vacuum cleaner body. Furthermore, since the vacuum cleaner has a structure in which the suction hose is connected to the upper portion of the vacuum cleaner body, the vacuum cleaner body is tilted when the user pulls the suction hose to move the vacuum cleaner, and the transport wheel is driven by the detection part that detects the situation.

Therefore, although the user does not pull the vacuum cleaner body itself to move the vacuum cleaner body, the vacuum cleaner body can automatically move by a simple operation, such as moving the suction hose, and the vacuum cleaner body can move according to the user when the user moves, and therefore the user convenience can be improved. .

In particular, since the vacuum cleaner body can be stopped while the slope of the vacuum cleaner body is always kept constant, regardless of the presence and absence of dust or the amount of dust, the reliability of the detection part when detecting the slope can be increased.

Brief Description of the Drawings

FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a view illustrating a state in which the vacuum cleaner body and the suction unit are separated;

FIG. 3 is a view illustrating a state in which a dust collector is separated from a vacuum cleaner body;

FIG. 4 is a view illustrating a state in which a cover element of a vacuum cleaner body is open;

FIG. 5 is an exploded perspective view of a vacuum cleaner body;

FIG. 6 is an exploded perspective view illustrating a state in which a pre-filter assembly according to an embodiment of the present invention is open;

FIG. 7 is a cross-sectional view of a vacuum cleaner body;

FIG. 8 is a plan view of a vacuum cleaner body from which a lid member has been removed;

FIG. 9 is an exploded perspective view illustrating an attachment structure of a vacuum cleaner body, a conveyor wheel, and a detection part in a one-way view;

FIG. 10 is an exploded perspective view illustrating an attachment structure of a vacuum cleaner body, a conveyor wheel, and a detection part when viewed in a different direction;

FIG. 11 is a side view illustrating the installation state between the cleaner body and the wheel gear assembly;

FIG. 12 is a side view of a vacuum cleaner body;

FIG. 13 is a bottom view of a vacuum cleaner body;

FIG. 14 is an exploded perspective view illustrating a rear wheel block attachment structure according to an embodiment of the present invention;

FIG. 15 is a cross-sectional view illustrating an operating condition of a rear wheel unit;

FIG. 16 is a rear view illustrating a state in which the back cover of the vacuum cleaner body is open;

FIG. 17 is an exploded perspective view illustrating a battery and filter attachment structure according to an embodiment of the present invention;

FIG. 18 is a cross-sectional view of a vacuum cleaner body before a battery is installed;

FIG. 19 is a cross-sectional view of a cleaner body in a state in which a battery is installed;

FIG. 20 is a perspective view of a cap member;

FIG. 21 is an exploded perspective view of a lid member;

FIG. 22 is a partial cross-sectional view illustrating an attachment structure of a cover member and an obstacle detection member;

FIG. 23 is an exploded perspective view illustrating an attachment structure of a locking assembly according to an embodiment of the present invention;

FIG. 24 is a perspective view illustrating a state before the locking assembly operates;

FIG. 25 is a cross-sectional view illustrating a state before the locking assembly is operated;

FIG. 26 is a perspective view illustrating the operating state of the locking assembly;

FIG. 27 is a cross-sectional view illustrating an operating state of a locking assembly;

FIG. 28 is a plan view of a lid member in which a display according to an embodiment is in an off state;

FIG. 29 is a plan view of a lid member in which a display according to an embodiment is on;

FIG. 30 is a perspective view illustrating a state in which a lid member is open;

FIG. 31 is an exploded perspective view illustrating an attachment structure of a tie rod assembly according to an embodiment of the present invention;

FIG. 32 is a cross-sectional view illustrating a state of a tie rod assembly at a time when the lid member is closed;

FIG. 33 is a cross-sectional view illustrating a state of a tie rod assembly while the lid member is open;

FIG. 34 is an enlarged view of the A portion of FIG. thirty.

FIG. 35 is a partial perspective view illustrating a structure of a portion for attaching a cover member and placement of a display cable according to an embodiment of the present invention;

FIG. 36 is a view illustrating a state of cable placement at a base of a cover for a cover member;

FIG. 37 is a view illustrating a structure for connecting a wire to a cleaner body;

FIG. 38 is a perspective view of a dust collector;

FIG. 39 is an exploded perspective view of a dust collector;

FIG. 40 is an exploded perspective view illustrating an attachment structure of an upper cover and a lower dust collector cover when viewed from one side;

FIG. 41 is a cross-sectional view illustrating a state in which the top cover is open;

FIG. 42 is an exploded perspective view illustrating an attachment structure of an upper cover and a lower dust collector cover when viewed from the other side;

FIG. 43 is a cross-sectional view illustrating a state in which the bottom cover is open;

FIG. 44 is an exploded perspective view illustrating an attachment structure of a bottom cover and a dust compression unit;

FIG. 45 is an enlarged view of the B region of FIG. 41.

FIG. 46 is a cross-sectional view illustrating a flow of air and dust in a vacuum cleaner body;

FIG. 47 is a plan view illustrating the flow of air and dust in a vacuum cleaner body;

FIG. 48 is a view illustrating a stop state of a vacuum cleaner body;

FIG. 49 is a view illustrating a state of movement of the cleaner body;

FIG. 50 is a view illustrating a state of movement with obstruction of a vacuum cleaner body;

FIG. 51 is a view illustrating a detection range of an obstacle detection element;

FIG. 52 is a view illustrating a state of movement along a wall surface of a vacuum cleaner body;

FIG. 53 is a view illustrating a state in which a part of the body for the body of the vacuum cleaner according to another embodiment of the present invention leans forward;

FIG. 54 is a view illustrating a state in which a part of the body leans backward;

FIG. 55 is a view illustrating a configuration of a support portion according to another embodiment of the present invention;

FIG. 56 is a view sequentially illustrating a process in which a battery is attached to a cleaner body; and

FIG. 57 is a view sequentially illustrating a process in which a battery is separated from a vacuum cleaner body.

An embodiment of the invention

Further, reference should be made to detailed information regarding embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. However, the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; on the contrary, alternative embodiments included in other retrogressive inventions or falling within the essence and scope of the present disclosure can be easily extracted by adding, modifying, and deleting and fully convey the principle of the invention for those skilled in the art.

FIG. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention. In addition, FIG. 2 is a view illustrating a state in which the cleaner body 10 and the suction unit are separated.

As illustrated in the drawings, a vacuum cleaner 1 according to an embodiment of the present invention includes a cleaner body 10 and a suction unit 20.

An electric motor for generating a suction force is provided inside the cleaner body 10. Furthermore, when the electric motor is driven and the suction force is generated, the suction unit 20 can direct the dust containing air to the cleaner body 10.

The suction unit 20 may include a suction portion 21 for suctioning dust on a surface to be cleaned, for example, on a floor surface, and a connecting portion for connecting the suction portion 21 to the cleaner body 10. The connecting part may include an extension pipe 22 that connects to the suction part 21, a handle 23 that connects to the extension pipe 22, and a suction hose 24 that connects the handle 23 to the cleaner body 10.

The transition section 241, which increases the air tightness when connected to the fitting 401 of the housing 10 of the vacuum cleaner, can be provided in the suction hose 24.

The transition section 241 can serve to install or separate the suction hose 24 in / from the fitting 401. The transition section 241 can be formed in several stages, as illustrated in the drawings.

The vacuum cleaner housing 10 includes a housing portion 30 and a lid member 40 that form an overall appearance.

The housing 10 of the vacuum cleaner may further include a conveyor wheel 60 that is rotatably coupled to the housing portion 30. A pair of conveyor wheels 60 can be provided and can be attached to both sides of the housing portion 30, respectively. In addition, the conveyor wheel 60 supports the housing portion 30 so that it rotates around the center of rotation of the conveyor wheel 60.

The gripping portion 41, which is gripped by the user, may be provided in the lid member 40. The user can grab the grip portion 41 when lifting or tilting the housing portion 30 or when opening and closing the cover member 40.

A back cover 314, which is openable and lockable, may be provided on the back surface of the housing portion 30. The back cover 314 may be configured to open and close the space within the housing portion 30 in which the battery pack 38 and the filter assembly 39 are housed.

The vacuum cleaner body 10 further includes a dust collector 50 in which dust is sucked in through the suction unit 20. The dust collector 50 may be cylindrical in shape, but is not limited to this. In addition, the dust collector 50 may be provided with the possibility of separation on the front surface of the part 30 of the housing.

In addition, FIG. 3 is a view illustrating a state in which the dust collector is separated from the cleaner body 10. In addition, FIG. 4 is a view illustrating a state in which the cover element of the cleaner body 10 is open.

As illustrated in the drawings, the dust collector 50 may be mounted so as to be detachable in a socket portion 32 formed in the first half portion of the housing portion 30. The dust collector 50 may form part of the front surface of the housing part 30 when installed in the socket part 32. In addition, the dust collector 50 may be installed or separated by opening and closing the lid member 40.

A suction port 511 through which dust is sucked can be provided in the dust collector 50. A suction port 511 can be located in a portion of the upper surface of the dust collector 50. Accordingly, air introduced through the suction port 511 is directed downward and then moves into the dust collecting space inside the dust collector. 50.

The dust collector 50 may be detachably mounted in the housing portion 30. A dust collecting space in which dust introduced through the suction port 511 is collected may be formed inside the dust collector 50.

A dust collector 50 may be provided in front of the housing portion 30, and at least a portion of a portion of a side surface of the dust collector 50 may be formed of a transparent material to allow a user to inspect dust collected in the dust collecting space.

While the dust collector 50 is installed in the socket portion 32, a portion of the side surface may be accessible through the front surface of the housing portion 30. At this point, the accessible portion of the dust collector 50 is formed from the transparent upper end of the side surface portion of the dust collector 50 to its lower end, and therefore, the entire dust collection space can be checked without separating the dust collector 50.

A dust collecting structure that separates dust from the air drawn in through the suction unit 20 can be provided inside the dust collector 50, and dust separated by the dust collecting structure can be captured in a lower portion of the dust collector 50.

The fitting 401 is directly connected to the suction hose 24, and air containing dust can be introduced through it. Thus, one side of the fitting 401 is connected to the suction hose 24, and its other side is connected to the suction port 511. Therefore, the fitting 401 connects the suction hose 24 to the suction port 511.

The fitting 401 may be in communication with the dust collector 50. Accordingly, air introduced into the suction hose 24 may be introduced into the dust collector 50 through the fitting 401.

A suction port 511 through which dust is introduced can be provided on one side of the dust collector 50. As illustrated, a suction port 511 can be provided in the upper portion of the dust collector 50. In addition, the suction port 511 can be formed forward. Here, the term “forward” may be the portion in which the suction hose 24 is located relative to the cleaner body 10.

As illustrated in the drawings, the nozzle 401 may be located in the upper portion of the dust collector 50. Since both the suction port 511 and the nozzle 401 are located in the upper portion of the dust collector 50, the length of the air passage introduced from the suction hose 24 can be minimized.

The housing 10 of the vacuum cleaner further includes a cover member 40 that is movably provided in the housing portion 30. The lid member 40 may be at least part of the upper surface of the cleaner body 10 and may be formed to open and close the upper surface of the body part 30. At this point, the rear end of the lid member 40 can be connected by shafts to the housing portion 30 so that it is rotatable, and therefore, the user can open the lid member 40 by gripping and rotating the gripping portion 41.

A fitting 401 may be provided in the cap member 40. Therefore, the fitting 401 can move along with the element 40 of the cover. The lid member 40 may protect at least one side of the dust collector 50. The lid member 40 may protect at least one side of the dust collector 50, and may also attach to the dust collector 50. The lid member 40 may attach to the dust collector 50 when closed and may separate from dust collector 50 upon opening. For example, the lid member 40 may be attached to the upper portion of the dust collector 50.

While the lid member 40 is in a closed state, the transition portion 241 of the suction hose 24 connected to the fitting 401 of the lid member 40 can communicate with the suction port 511 of the dust collector 50. Therefore, dust and air drawn in through the suction unit 20 can pass through the fitting 401 of the lid member 40 and can then be introduced into the dust collector 50 through the suction port 511.

Furthermore, while the lid member 40 is in the open state, the transition portion 241 of the suction hose 24 can be kept in a connected state with the fitting 401 of the lid member 40, and the lid member 40 and the dust collector 50 can be separated. Therefore, while the lid member 40 is in the open state, the dust collector 50 may be separable from the socket portion 32.

Further in this document, the cleaner body 10 is described in more detail.

FIG. 5 is an exploded perspective view of a cleaner body 10. In addition, FIG. 6 is an exploded perspective view illustrating a state in which a pre-filter assembly according to an embodiment of the present invention is open. In addition, FIG. 7 is a cross-sectional view of a cleaner body 10. In addition, FIG. 8 is a plan view of a cleaner body 10 from which a lid member is removed.

As illustrated in the drawings, the vacuum cleaner body 10 includes a housing part 30 and a lid member 40 and can be formed such that the dust collector 50 is mounted in the housing part 30.

In addition, the housing portion 30 may include a base 31 that forms the bottom of the vacuum cleaner body 10 and provides a space in which the dust collector 50, the battery pack 38, the filter unit 39 and the main electric motor 35 are mounted.

The base 31 may include a first half portion 312, a central portion 311, and a second half portion 313, may be formed with a predetermined width, and therefore may provide a space in which a dust collector 50, a battery unit 38, a filter unit 39, and so on are installed. d.

The central portion 311 may have a flat surface shape and may be located between the first half portion 312 and the second half portion 313. At this point, the first half portion 312 and the second half portion 313 may be formed to extend obliquely with respect to the central portion 311 and may be formed gradually higher in a direction that moves away from the edge of the Central section 311.

The contact terminal portion 311a in which the terminal 307 for power supply is located can be formed at one end of the central portion 311, i.e. in the position adjacent to the transport wheel 60. The contact terminal mounting portion 311a may be recessed so that its bottom surface is open, and may also be formed to be connected to the charger terminal when the battery pack 38 of the vacuum cleaner 1 is charging.

In addition, the rear wheel unit 70 may be provided in a position of the central portion 311 adjacent to the second half portion 313. The rear wheel unit 70 may prevent the vacuum cleaner body 10 from tipping back while the vacuum cleaner is in use 1. The rear wheel unit 70 may allow maintaining the base 31 at a given angle in a stopped state. To this end, the rear wheel unit 70 may be formed so as to be in contact with the ground and the central portion 311 while the cleaner body 10 is in a stopped state, i.e. does not move, thereby elastically supporting the cleaner body 10.

The first half portion 312 is formed at the front end of the central portion 311. The first half portion 312 extends from the edge of the central portion 311 so that it tilts upward, and the socket portion 32, which forms a space for accommodating the dust collector 50, can be provided in the first half portion 312 .

The nest portion 32 may include a lower surface portion 321 that forms its bottom, and a peripheral portion 322 that extends upwardly along the circumference of the lower surface portion 321. The peripheral portion 322 is configured to be open forward so that the dust collector 50 is mounted therein.

A motor compression unit 323 for driving the dust compression unit 56 inside the dust collector 50 may be provided between the bottom surface portion 321 and the first half portion 312. When the dust collector 50 is installed in the socket portion 32, the compression motor assembly 323 and the dust compression unit 56, which are detailed are described below, are interconnected, and therefore, the dust compression unit 56 is in a state of being able to be actuated.

The compression motor assembly 323 may include a compression motor 323a that provides rotational force, and a compression gear 323b that connects to a rotational shaft of the compression motor 323a. The compression gear 323b may be located in a position that is eccentric with respect to one side from the center of the bottom surface portion 321. In addition, the opening 321a of the open lower surface may be formed on the lower surface portion 321, and the first gear gear 591, which will be described later, may be located in the lower surface opening 321a when the dust collector 50 is installed. Therefore, when the dust collector 50 is installed, the compression gear 323b is attached to the first gear gear 591 so as to transmit the power of the compression motor 323a.

The front wheel 312a can be mounted on the lower surface of the first half section 312. The front wheel 312a is located on the front side slightly further than the center of the first half section 312 and allows the vacuum cleaner body 10 to be easily moved over an obstacle when an obstacle such as a carpet and a door threshold is located in front of the housing 10 of the vacuum cleaner, which moves. In addition, when the cleaner body 10 is tilted forward, the front wheel 312a can rotate in a state of contact with the ground so that tipping the cleaner body 10 forward is prevented.

The second half portion 313 can also be formed so that it can be inclined upward from the rear end of the central portion 311. Therefore, when the vacuum cleaner body 10 begins to move forward to move, the vacuum cleaner 1 is tilted using the transport wheel 60 as an axis, and therefore the housing 10 of the vacuum cleaner rotates easily.

In addition, at least a portion of the rear opening 317, open and closed by the back cover 314, may be formed in the second half portion 313. The back cover 314 forms a curved surface identical to the curved surface of each of the bottom decoration 315 and the top decoration 37 which form the appearance of each of the second half portion 313 and the cleaner body 10 when shielding the rear opening 317. The back cover 314 may be formed as part of the second half th portion 313 with a slope or curved surface identical to a curved surface or a slope of the second half portion 313.

The back cover 314 may form part of the rear surface of the housing part 30. In addition, the lower end of the rear cover 314 may rotatably attach to the second half portion 313 and may open and close the rear hole 317 by rotation. In addition, a grill through which air separated from dust is released when passing through the inside of the vacuum cleaner body 10 can be formed in the back cover 314, and therefore, air can be released from which dust is filtered. And the grill may be called an outlet.

Meanwhile, the carrier frame is installed in the center of the base 31. The carrier frame is formed with the possibility of dividing the space in which the dust collector 50 is located, the space in which the main electric motor 35 is provided, and the space in which the battery unit 38 and the filter unit 39 are provided.

In particular, the support frame may include a lower frame 33 and an upper frame 34.

The lower frame 33 is mounted in the central portion 311 and may include a first partition 331, which divides forward and backward a portion of the interior of the housing portion 30, and one pair of side walls 332 that extend from both ends of the first partition 331, respectively. In addition, a main electric motor 35, a wheeled motor assembly 63, a compression motor assembly 323, an obstacle detection member 44 and a main PCB 301 for controlling the overall operation of the vacuum cleaner 1 can be provided on the front surface of the first partition 331.

A lower socket element 300 may be provided on the front surface of the first partition 331. The lower socket element 300 may be formed so that its center is recessed to support the side surface of the dust collector 50 when the dust collector 50 is installed. In addition, the main PCB 301 mounted on the front surface of the first partition 331 may be located in the lower socket 300.

A noise filter 302 for removing noise from the input power supplied to the main PCB 301 is provided on the rear surface of the first partition 331. The noise filter 302 may be an EMI filter.

At this point, an opening of the first partition 331a serving as an air passage is formed in the first partition 331 between the main PCB 301 and the noise filter 302. Therefore, the main PCB 301 and the noise filter 302 can naturally be cooled by air passing through the opening 331a of the first partition.

The lower frame 33 is open up and down when installed in the base 31, and the upper frame 34 is mounted on the upper end of the lower frame 33. In addition, the upper frame 34 protects the open upper surface of the lower frame 33 and forms the space in which the battery pack 38 and the block are placed 39 filters. In addition, a space is also formed in which a main electric motor 35 for suctioning air is provided.

In particular, the upper frame 34 may include a cover plate 341, a second partition 342, and a second side wall 343.

The second partition 342 divides the upper space of the housing portion 30 into a front portion and a rear portion, forms in the front portion a space in which a pre-filter assembly 36 is connected to the dust collector 50, and also forms behind it a space in which the main electric motor 35 is provided.

In addition, a second baffle opening 342a may be formed in the second baffle 342, and therefore fine dust can be filtered while air passing through the dust collector 50 passes through the pre-filter assembly 36 when the main electric motor 35 is driven, and the air filtered through the pre-filter assembly 36 passes through the main electric motor 35.

The front wall 344 of the partition, which extends forward, is formed at both ends of the second partition 342 and forms the space in which the pre-filter assembly 36 is housed.

The pre-filter assembly 36 may include a pre-filter housing 361 that is in direct contact with the dust collector 50, and a pre-filter housing 362 that is connected to the pre-filter housing 361 and in which the filter element 363 is housed.

The pre-filter housing 361 and the pre-filter housing 362 can form a space to accommodate the filter element 363 when attached to each other, and can also be rotatably attached to each other with the possibility of opening and closing. Therefore, the filter element 363 can be mounted or detached from the pre-filter housing 362 after the pre-filter housing 361 is opened.

The filter element 363 serves to secondary filter the fine dust, which is not filtered by the dust collector 50, in which the dust and foreign substances are primarily filtered, and is formed with the ability to remove fine dust in the air introduced into the main electric motor 35. Meanwhile, air, passing through the filter element 363 and the main electric motor 35, can cool the battery pack 38 and then can be released outside after fine dust in it is filtered three times in the filter block 39, which ing is described in detail below.

The pre-filter assembly 36 is described in more detail below with reference to FIG. 6. The pre-filter assembly 36 has a structure in which the filter element 363 is housed in the pre-filter housing 362, and which is protected by the pre-filter housing 361.

The pre-filter housing 361 may be accessible from the front while the pre-filter assembly 36 is installed in the upper frame 34. In addition, the front surface of the pre-filter housing 361 is configured to have a curved surface corresponding to the outer surface of the dust collector 50. Therefore, when the dust collector 50 installed in the housing part 30, the accessible front surface of the pre-filter housing 361 surrounds and supports the outer surface of the dust collector 50. At this point, the front the surface of the pre-filter housing 361 may be inclined and thereby contacting the outer surface of the dust container 50 according to the installation state at an angle to the dust container 50. Therefore, when the dust container 50 is installed, the dust container 50 can be kept in a stable state due to the front surface of the filter housing 361 .

The filter hole 361a is formed in the position of the pre-filter housing 361 corresponding to the exhaust port 512 of the dust collector 50. The filter hole 361a can be formed with a size and shape corresponding to the size and shape of the exhaust port 512. In addition, a housing gasket 361b that is in direct contact with the circumference of the exhaust of a port 512 is formed around the filter opening 361a so that the dust collector 50 and the pre-filter housing 361 are in direct contact with each other, and therefore air leakage is prevented .

The locking element groove 361c is further formed in the pre-filter housing 361. The locking element groove 361c accommodates the upper locking element 57, which is arranged to protrude from the outer surface of the dust collector 50 when the dust collector 50 is installed in the housing portion 30. Therefore, the groove 361c for the locking element may be formed so as to conform to the protruding shape of the upper locking element 57.

A first confining portion 361d, which enables the pre-filter housing 362 to be kept closed, may be formed on both side surfaces of the pre-filter housing 361. The first bounding portion 361d may be recessed to accommodate the second bounding portion 362c, which is described below, and the bounding protrusion 361e may be formed in the first bounding portion 361d to protrude.

Meanwhile, the casing gasket 361g may further be provided in the circumference of the open rear end of the pre-filter casing 361. The casing gasket 361g may be in direct contact with the front surface of the second partition 342 and may allow air passing through the pre-filter assembly 36 to pass through the second partition bore 342a without leakage.

A first rotating attachment portion 361f may be formed at the lower end of the pre-filter housing 361. The first rotating attachment portion 361f serves to rotatably connect the pre-filter housing 361 and the preliminary filter housing 362, and one pair of the first rotating attachment portions 361f may protrude from the lower end of the preliminary filter housing 361. In addition, the second rotating attachment portion 362e may be located between the pair of the first connecting attachment rotary sections 361f, and the first attachment rotating portions 361f may be rotatably coupled to both ends of the second rotating attachment portion 362e.

The pre-filter housing 362 may include a housing grill 362a, the front surface of which is open and the rear surface of which is in the form of a grill, and which is in direct contact with the second partition 342, and a housing flange 362b that extends along the perimeter of the housing grill 362a and accommodates a housing 361 pre filter.

If necessary, a gasket can be provided around the perimeter of the housing grid 362a so that the second partition 342 and the pre-filter housing 362 are directly in contact with each other in an airtight manner. In addition, the housing grate 362a may be in the form of a grating, so that air introduced through the filter opening 361a passes through the filter element 363 and then passes through the second partition opening 342a.

The housing flange 362b may be in direct contact with the outer surface of the pre-filter housing 361 and may be formed so that the width of its lower end exceeds the width of its upper end and its side surface is inclined to allow the pre-filter housing 36 to be connected in an inclined state. In addition, a second confining portion 362c that is mounted on the first confining portion 361d may be formed on both side surfaces of the housing flange 362b.

The second bounding portion 362c may be formed to protrude forward from both sides of the housing flange 362b and may have a shape that is housed in the first bounding portion 361d. In addition, the bounding hole 362d is formed in the second bounding portion 362c. The restriction hole 362d serves to enable the insertion of the restriction protrusion 361 when the second restriction portion 362c is located in the second restriction portion 362c, thereby making it possible to keep the pre-filter housing 361 and the pre-filter housing 362 closed.

In addition, a second rotating attachment portion 362e may be formed at the lower end of the housing flange 362b. The second rotating attachment portion 362e is rotatably connected to the first rotating attachment portion 361f, and is also formed so that the prefilter casing 361 and the preliminary filter housing 362 rotate around the first rotating attachment portion 361f and the second rotating attachment portion 362e, respectively . Therefore, the pre-filter housing 361 can be opened and closed by rotation around the lower end of the pre-filter housing 362 and can replace the filter element 363 after the pre-filter housing 362 is opened.

Different types of filters that can collect various fine dust can be used as a filter element 363, and the filter element 363 may have a shape that is housed in the interior of the pre-filter housing 362.

The pre-filter assembly 36 can be mounted on the upper frame 34 when the filter element 363 is placed, can support the dust collector 50 when installed on the upper frame 34, and can allow secondary filtration of the air passing through the dust collector 50 and subsequent supply to the main electric motor 35.

One pair of second side walls 343 may extend backward from the rear surface of the second partition 342. The second side walls 343 may form the space in which the main electric motor 35 is located, and may also form the space in which the secondary PCB 305 is located.

In particular, a main motor 35 may be provided between the pair of second side walls 343, and an auxiliary PCB 305 may be mounted on the outer surface of one of the second side walls 343. Thus, as illustrated in FIG. 8, the main electric motor 35 and the auxiliary PCB 305, respectively, can be located in spaces divided relative to the second side walls 343.

Meanwhile, the hole 342a of the second partition may be formed in the region between the pair of second side walls 343. Therefore, all air passing through the hole 342a of the second partition may pass through the main electric motor 35.

In addition, the plate hole 341a may be formed in the cover plate 341, which forms the bottom of the upper frame 34. The plate hole 341a may be formed in the region between the pair of second side walls 343. Therefore, air introduced into the space for receiving the main motor 35 through the hole 342a of the second partition, may be introduced into the space that is formed in the lower frame 33 to accommodate the battery pack 38 through the plate hole 341a, and may cool the battery pack 38.

The main electric motor 35 is provided in the space formed by the upper frame 34 and is located on the rear side further than the center of gravity of the housing part 30 and the center of the transport wheel 60. Accordingly, due to the installation structure of the main electric motor 35, the load is applied so that the rear end of the housing part 30 is lowered by the weight of the main electric motor 35 at a time when external force is not provided.

In addition, since the main electric motor 35 is located in length in the forward and reverse directions, the center of gravity of the housing part 30 can be located on the rear side further than the rotation center of the transport wheel 60 and can provide a torque for clockwise rotation of the housing part 30.

Meanwhile, the main electric motor 35 has a structure in which a fan and an electric motor are connected inside the casing to direct air flow. Various structures that force the air flow can be used as such a structure of the main electric motor 35.

In addition, the main electric motor 35 can be mounted and attached to the upper frame 34 by means of a support element 351 of the electric motor. The electric motor support member 351 may be formed from a rubber material or a material having elasticity, may reduce vibration generated when the main electric motor 35 is driven, and thereby may reduce the noise level.

An electric motor cover 352, which surrounds at least a portion of the main electric motor 35, can be further provided to the rear of the main electric motor 35. Many holes can be formed in the electric motor cover 352, and therefore air forced to be forced by the main electric motor 35 can pass through them. In addition, sound-absorbing material may additionally be provided between the motor cover 352 and the main electric motor 35 and may reduce the noise level generated when the main electric motor 35 is driven.

In addition, the main electric motor 35 is located in the space formed by the upper frame 34 so that it bends to one side on which the auxiliary PCB 305 is provided. Thus, the main electric motor 35 is adjacent to one of the pair of second side walls 343, in which an auxiliary PCB 305 is installed. Accordingly, a relatively wide space can be formed between the main electric motor 35 and one of the second side walls 343, which is remote from the auxiliary PCB 305.

At least a portion of the plate hole 341a may be accessible through an area between the main electric motor 35 and the second side wall 343, which is remote from the auxiliary PCB 305. In addition, the first partition hole 331a may also be formed in the extension line area identical to the extension line holes 341a of the plate.

Therefore, air discharged through the main electric motor 35 can be discharged through the electric motor cover 352. Since one of both transverse directions is blocked by an adjacent second side wall 343, air naturally flows through the space between the other second side wall 343, each of which has a plate hole 341a. Since air is allowed to flow smoothly into the opening 331a of the first partition, noise due to flow can be reduced.

Meanwhile, the frame cover 36 may be provided in the upper frame 34. The frame cover 36 may be formed to protect the open upper surface of the upper frame 34. Therefore, while the frame cover 36 is being installed, the space in which the main electric motor 35 is housed can be sealed, and all air introduced through the hole 342a of the second partition by driving the main electric motor 35 can pass through the main electric motor 35 and then can be discharged into the hole 341a of the plate.

Meanwhile, the auxiliary PCB 305 may be provided in one of the pair of second side walls 343. The auxiliary PCB 305 controls the driving of the auxiliary electric motor 201, which drives the agitator inside the suction unit 20. A BLDC motor that is inexpensive and easy to control, can be used as auxiliary electric motor 201, and auxiliary PCB 305 can reduce the input power voltage so that it is suitable for auxiliary electric motor 201, and then can supply Khodnev power to the auxiliary electric motor 201.

The auxiliary PCB 305 can be provided in a separate space of the upper frame 34 separately from the main PCB 301, and therefore can be installed if necessary. Thus, when the auxiliary electric motor 201 is not provided in the suction unit 20, the auxiliary PCB 305 cannot be installed, and therefore, the main PCB 301 can usually be used.

Meanwhile, the upper portion of the vacuum cleaner body 10 can be formed by the upper decoration 37. The upper decoration 37 can protect the open upper portion of the base 31 and therefore can protect the internal elements installed in the base 31. In addition, the upper decoration 37 part of the appearance of the upper surface of the housing 10 of the vacuum cleaner and forms the upper appearance of the housing 10 of the vacuum cleaner with the exception of its portion protected by the element 40 of the cover, transporting to forest 60 and dust collector 50.

In addition, the upper decoration 37 may be attached to the lower decoration 315, which is described below, and may form part of the appearance of the side surface of the cleaner body 10 by attaching to the lower decoration 315.

FIG. 9 is an exploded perspective view illustrating an attachment structure of a vacuum cleaner body 10, a conveyor wheel, and a detection part in a one-way view. In addition, FIG. 10 is an exploded perspective view illustrating an attachment structure of a vacuum cleaner body 10, a conveyor wheel, and a detection part when viewed in a different direction. FIG. 11 is a side view illustrating the installation state between the cleaner body 10 and the wheel gear assembly. In addition, FIG. 12 is a side view of the cleaner body 10.

As illustrated in the drawings, one pair of side portions 316 formed to extend upwardly is formed at both side edges of the base 31, respectively. The side sections 316 may provide a space in which the transport wheel 60 and the wheeled motor unit 63 are mounted to drive the transport wheel 60. A pair of side sections 316 can be provided on the left and right sides, and a structure in which the wheeled motor unit 63 is mounted may be identical to the design in which the transport wheel 60 is mounted.

Each of the side sections 316 can extend to a position above the center of the transport wheel 60 and can be formed smaller than the transport wheel 60. A wheel hub 316a in which the transport wheel 60 is rotatably mounted can be provided in the center of each of the side sections 316. The sleeve 316a wheels can extend from the side portion 316 to the center of the transport wheel 60. While the transport wheel 60 is mounted in the wheel hub 316a, the transport wheel 60 can rotate be driven by the wheel motor assembly 63 and the wheel gear 64. In addition, the cleaner body 10 can also be in a rotational state using the wheel hub 316a as an axis.

In addition, a wheeled motor assembly 63 may be provided in the transverse side of the wheel hub 316a. When the conveyor wheel 60 is installed in the wheel hub 316a, the wheeled motor assembly 63 can be protected by the conveyor wheel 60. Thus, the wheeled motor assembly 63 can be provided in the space defined between the side portion 316 and the conveyor wheel 60.

Wheel motor assembly 63 may include a wheel electric motor 632, a crankcase 631 of a wheel electric motor and a plurality of movable gears (not shown) that are provided in the crankcase 631 of the wheel electric motor so as to transmit power to the wheel gear 64.

Wheel electric motor 632 can be made with a BLCD electric motor, the rotation of which is easily controlled, and which is easy. In addition, the plurality of movable gears that connect the rotational shaft of the wheel electric motor 632 to the wheel gear 64 of the conveyor wheel 60 slow down the rotation of the wheel electric motor 632 and then transfers the rotation to the conveyor wheel 60.

Meanwhile, the wheeled motor assembly 63 may be mounted on the rear side further than the rotation center of the conveyor wheel 60. In particular, a groove 633 for mounting a housing that is recessed inward may be formed in the crankcase 631 of the wheel motor. The casing mounting groove 633 is recessed in a shape corresponding to the wheel hub 316a and is configured to accommodate at least a portion of the wheel hub 316a. Thus, while the wheel motor assembly 63 is installed, the casing mounting groove 633 is mounted so as to surround the second half portion of the outer surface of the wheel hub 316a and is located on the rear side of the wheel hub 316a. Therefore, the wheeled motor assembly 63 may provide the possibility of locating the center of gravity of the vacuum cleaner body 10 in an even more rear side when the vacuum cleaner is installed in the body 10.

In addition, the wheel electric motor 632 is located in the lower portion of the wheel housing 631 of the wheel electric motor, and a plurality of movable gears are located above the wheel electric motor 632. Thus, since the wheel electric motor 632, which is relatively heavy, is located on the lower side, the center of gravity of the vacuum cleaner body 10 may be located on the even lower side.

The lower decoration 315, which forms the appearance of the housing portion 30, accessible from the outside of the transport wheel 60, can be installed in the side portion 316. The lower decorative decoration 315 can be formed along at least a portion of the circumference of the transport wheel 60, can be formed have a curved surface that extends to the curved surface of the transport wheel 60, and therefore can form a smooth appearance.

A plurality of reinforcing ribs 316b that extend vertically can further be formed on the inner surface of the side portion 316, i.e. on a surface opposite the surface on which the wheel hub 316a is formed. Since a plurality of reinforcing ribs 316b are formed, damage to the side portion 316 can be prevented by a load that is applied laterally. In addition, the transport wheel 60 may be maintained in a stably connected state.

Meanwhile, the detection part 306 can additionally be provided on one side of the inner surface of the side portion 316. The detection part 306 can detect the moving state or position of the vacuum cleaner body 10 and can control the driving of the transport wheel 60. The detection part 306 serves to detect moving the housing 10 of the vacuum cleaner, and may include a gyro sensor or an acceleration sensor, which is typically widely used. Of course, instead of a gyro sensor or an acceleration sensor, various sensors or devices that detect the movement of the cleaner body 10 can be used as the detection part 306.

The detection part 306 may be installed in the upper portion of the inner surface of the side portion 316. The detection part 306 may include a detection PCB 360a on which the gyro sensor is mounted, and a detection part fastener 306b that secures the detection PCB 360a and is installed in the side portion 316. In addition in addition, one pair of fixing hooks 306c can be provided in the detection part fixing element 306b and can be inserted and attached to the detection part fixing holes 316c formed in the side portion 316.

Meanwhile, the detection PCB 360a may be configured to control the driving of the wheel electric motor 632 provided on both sides. Thus, the configuration for controlling the gyro sensor and the wheel motor 632 can be performed with one PCB.

As described above, the detection part 306 can be mounted and attached to the side portion 316, and the installation position of the detection part 306 can be located on one side that is remote from the center of rotation of the conveyor wheel 60 used as the rotational shaft of the vacuum cleaner body 10. Therefore, when the body 10 of the vacuum cleaner moves or stops, the rotation angle, i.e. the slope of the housing 10 of the vacuum cleaner.

While the vacuum cleaner body 10 is in a stopped state, its center of gravity is located behind the center of the transport wheel 60. Therefore, the vacuum cleaner body 10 is maintained in a state that is provided to rotate clockwise relative to the center of the transport wheel 60. In addition to Moreover, the cleaner body 10 is maintained in a maintained state by a rear wheel unit 70 that is in contact with the ground. Accordingly, the lower surface of the body 10 of the vacuum cleaner, in particular, the first half section 312 can be supported at a given angle.

In this state, the detection part 306 determines whether the cleaner body 10 moves or stops through the slope of the cleaner body 10, i.e. through the corner of the first half section 312.

In particular, the wheeled motor assembly 63, the battery pack 38 and the main electric motor 35 may be located at the rear of the center of the transport wheel 60. Therefore, the center of gravity G of the vacuum cleaner body 10 is located on the rear side further than the rotation center C of the transport wheel 60, and therefore, the housing 10 the vacuum cleaner is naturally in a state that is provided in order to rotate clockwise relative to the center of the conveyor wheel 60.

In addition, the second half portion 313 of the cleaner body 10 can be supported by the rear wheel unit 70 mounted in the second half portion 313 of the base 31. Therefore, excessive rotation of the cleaner body 10 in a clockwise direction can be prevented, and it can be stably maintained at a predetermined angle α.

In particular, due to the characteristics of the vacuum cleaner 1, dust accumulates in the dust collector 50 after the vacuum cleaner 1 is used. With this in mind, the center of gravity of the vacuum cleaner body 10 is always in the second half section and is supported by the rear wheel unit 70, and therefore, the vacuum cleaner body 10 can maintain a constant inclination relative to the ground in a stopped state, regardless of the amount of dust.

In this state, when the detection part 306 detects the angle of the first half portion 312 and confirms that the first half portion 312 maintains the predetermined angle α, it is determined that the vacuum cleaner body 10 maintains the predetermined position in the stopped state. Therefore, the main PCB 301 controls the wheel motor assembly 63 so that it does not work, thereby maintaining the stopped state of the cleaner body 10.

Meanwhile, when the user grabs and moves the handle 23 forward to use the vacuum cleaner 1, the cleaner body 10 is tilted due to the position of the handle 23. Thus, the cleaner body 10 is rotated counterclockwise so that the first half portion 312 moves further downward.

At this point, the detection part 306 detects a change in the angle of the first half portion 312 and determines that the movement of the vacuum cleaner 1 starts according to the change in the angle. Therefore, the main PCB 301 can determine that the cleaner body 10 is moving, and therefore can rotate the conveyor wheel 60 by driving the wheel motor assembly 63.

Furthermore, when the movement of the vacuum cleaner body 10 is again stopped, the vacuum cleaner body 10 is rotated to its initial state by the center of gravity, and the detection part 306 checks that the angle of the first half portion 312 coincides with the predetermined angle α in the stopped state. Therefore, the main PCB 301 may determine that the movement of the vacuum cleaner body 10 is completed, and may control the wheeled motor assembly 63 so that it stops.

Meanwhile, as illustrated in FIG. 11, the lower surface of the cleaner body 10, i.e. the central portion 311, the first half portion 312 and the second half portion 313 of the base 31 may have a predetermined angle. The angle of each of the central portion 311, the first half portion 312, and the second half portion 313 may be defined in various ways. Hereinafter, the angle of the base 31 in the stopped state of the cleaner body 10 is described.

For example, the first half portion 312 may be formed obliquely at an angle of 27 ° relative to the ground. The first half portion 312 essentially cannot collide with the ground by allowing the first half portion 312 to have an angle of 27 ° even when the suction hose 24 is tensioned and the cleaner body 10 rotates. Of course, the first half portion 312 may be in contact with the ground due to an unexpected operation. In this case, the movement of the cleaner body 10 can be smoothly performed by the swinging movement of the front wheel 312a. In addition, the first half portion 312 can easily move along a carpet, door sill, and the like. due to the slope of the first half portion 312 while the body 10 of the vacuum cleaner is moving.

In addition, the central portion 311 may be formed so as to be inclined at an angle of 7 ° to the ground while the cleaner body 10 is in a stopped state. When the conveyor wheel 60 is rotated by driving the wheel electric motor 632, and therefore the vacuum cleaner body 10 is moved, the vacuum cleaner body 10 rotates counterclockwise by an angle of about 7 °. Therefore, while the vacuum cleaner body 10 is being moved, the central portion 311 is supported in a horizontal position relative to the ground, and thereby preventing the bottom of the vacuum cleaner 1 from being touched by foreign substances or the like. in room.

In addition, the second half portion 313 may be formed so as to be inclined at an angle of 10 ° to the ground while the cleaner body 10 is in a stopped state. Therefore, the cleaner body 10 can be rotated clockwise by the center of gravity of the cleaner body 10, which is eccentric with respect to the rear side while the cleaner body 10 is in a stopped state, and then can be located on the ground.

Thus, in the stopped state, the cleaner body 10 is already in a state in which its second half portion 313 moves down due to the center of gravity, and therefore can be maintained in a stable state by the rear wheel unit 70, regardless of the amount of dust stored in dust bag 50.

Furthermore, due to the inclined second half portion 313, it is possible to prevent the collision of the second half portion 313 with the ground when the suction hose 24 is pulled and the cleaner body 10 rotates, and thereby restricting rotation of the cleaner body 10 can be prevented.

Meanwhile, the conveyor wheel 60 may include a wheel frame 61 that is rotatably mounted in the wheel hub 316a of the side portion 316, and in which the gear wheel 64 is mounted, and a wheel bezel 62 that defines the appearance of the conveyor wheel 60 by attaching to the outer surface of the wheel frame 61.

The wheel frame 61 forms a substantial skeleton of the transport wheel 60 and performs a rocking movement upon contact with the ground, and a plurality of ribs 611 for strengthening all strength can be radially provided on the inner surface and the outer surface. In addition, a portion for installing a wheel gear 612 to which the wheel gear 64 is attached is formed in the center of the wheel frame 61. Wheel gear 64 may be rotatably mounted in the wheel hub 316a when attached to the wheel frame 61.

Meanwhile, a wheel hole 621 is formed in the center of the wheel decoration 62, and an attachment member by which the wheel gear 64 and the wheel frame 61 are attached can be attached through the wheel hole 621. In addition, the wheel cap 623 can be mounted in the hole 621 of the wheel and can protect the hole 621 of the wheel.

Meanwhile, in FIG. 12, the cleaner body 10 can be divided into a front side and a rear side by means of a vertical extension line LV, which extends vertically to the ground (or floor surface), with respect to the rotation center C of the conveyor wheel 60.

In addition, the cleaner body 10 can be divided into the upper side and the lower side by means of a horizontal extension line LH, which extends horizontally relative to the ground (or floor surface), between the main electric motor 35 and the battery pack 38.

The vacuum cleaner body 10 can be divided into four areas, i.e. into four quadrants, through the vertical extension line LV and the horizontal extension line LH. Further in this document, the main configurations of the vacuum cleaner body 10 are described with respect to the vertical extension line LV and the horizontal extension line LH.

The main electric motor 35 may be located in the first quadrant of the cleaner body 10, i.e. back from the vertical extension line LV and above the horizontal extension line LH. In addition, the battery pack 38 may be located in the fourth quadrant of the cleaner body 10, i.e. back from the vertical extension line LV and below the horizontal extension line LH. In addition, the hole formed in the position in which the fitting 401 or the suction hose 24 is connected can be located in the second quadrant of the cleaner body 10, i.e. in front of the vertical extension line LV and above the horizontal extension line LH. In addition, at least a portion of the bottom surface of the dust collector 50 may be located in the third quadrant of the cleaner body 10, i.e. in front of the vertical extension line LV and below the horizontal extension line LH.

Due to this arrangement, the center of gravity G of the entire body 10 of the vacuum cleaner can be located behind the vertical extension line LV. At this time, the center of gravity G can be located anywhere above and below the horizontal extension line LH. However, the center of gravity G should be located in a position in which the rear end of the cleaner body 10 or the rear wheel unit 70 is rotatable so that it is in contact with the ground.

In addition, the center of gravity G may be located so that the rear end of the cleaner body 10 or the rear wheel unit 70 is in contact with the ground while the vacuum cleaner 1 is in a stopped state, regardless of the amount of dust collected in the dust collector 50 by using a vacuum cleaner one.

In addition, the wheeled motor assembly 63 may also be located rear of the vertical extension line LV so that the center of gravity G is easier to position on the rear side.

FIG. 13 is a bottom view of the cleaner body 10. In addition, FIG. 14 is an exploded perspective view illustrating an attachment structure of a rear wheel unit 70 according to an embodiment of the present invention. In addition, FIG. 15 is a cross-sectional view illustrating an operating condition of a rear wheel unit 70.

As illustrated in the drawings, a rear wheel unit 70 may be provided in the base 31. A base recess portion 311b that is recessed inwardly is formed at the rear end of the center portion 311 of the base 31. In addition, a wheel mounting portion 311c for forming a rear wheel block 70 is formed at the front end of each of both side surfaces of the base recess portion 311b.

The rear wheel unit 70 is in contact with the ground while the vacuum cleaner body 10 is not moving, and makes it possible to maintain the vacuum cleaner body 10 in a predetermined position. In addition, the rear wheel unit 70 is in contact with the ground while the vacuum cleaner body 10 is rotated so that the first half portion 312 rises, also provides elasticity for reverse rotation of the vacuum cleaner body 10, and therefore can prevent excessive rotation or tipping of the vacuum cleaner body 10 .

The rear wheel unit 70 may include a wheel support 71 and a rear wheel 72. The wheel support 71 allows rotation of the rear wheel 72 and is also in contact with the lower surface of the base 31, thereby providing a predetermined elasticity.

In particular, the wheel support 71 may include one pair of legs 73, which are provided on its left and right sides, a wheel receiving portion 74 that connects the front ends of the legs 73, and in which the rear wheel 72 is mounted, and an elastic portion 75, which is provided between the legs 73 and is in contact with the base 31 to provide elasticity.

The legs 73 serve to establish the wheel support 71, and can be provided on both sides that are spaced apart from each other, and the protrusion 731 of the legs, which protrudes outward, can be formed on the upper end of each of the legs 73. The protrusion 731 the legs can be inserted inside the wheel fitting portion 311c, and the wheel support 71 can be set so that it rotates using the leg protrusion 731 as an axis.

A wheel accommodating section 74 is provided at the front end of each of the pair of legs 73 and is configured to be connected between the pair of legs 73. In addition, the wheel accommodating section 74 has a shape that is open downward and provides a space in which the rear wheel 72 is housed. In addition, the shaft mounting portion 741, in which the rotational shaft 721 of the rear wheel 72 is rotatably connected, may further be formed at each of both ends of the wheel fitting portion 74. Therefore, the rear wheel 72 can rotate when placed inside the portion 74 to accommodate the wheel.

An elastic portion 75 may be provided between the legs 73 and may extend from the first half portion of each of the legs 73 to its second half portion. In addition, the elastic section 75 may continue with a predetermined curvature so that its elongated end is directed to the base 31. In addition, the elastic section 75 may have a plate shape and may continue to elastically deform upon contact with the base 31.

The elongated end of the elastic portion 75 may contact the base 31 while the vacuum cleaner 1 is stopped. At this time, the rear wheel 72 may be in contact with the rear wheel 72. Therefore, the cleaner body 10 can be supported by a pair of transport wheels 60 and a rear wheel 72 located rear of the transport wheel 60, and can be maintained in a stable state.

Furthermore, when the vacuum cleaner body 10 is rotated using the conveyor wheel 60 as an axis by moving the vacuum cleaner body 10, the elastic portion 75 can elastically deform and thereby prevent excessive rotation or tipping of the vacuum cleaner body 10. In addition, when the vacuum cleaner 1 is moved and then stopped, and therefore the external force that rotates the vacuum cleaner 1 is removed, the housing 10 of the vacuum cleaner returns to its original position due to the restoring force of the elastic portion 75.

Meanwhile, a terminal portion 311a for installing a terminal that allows for the installation and downward accessibility of terminal 307 for power supply is formed on one side of the base 31 corresponding to terminal 307 for power supply. The contact terminal portion 311a is formed so that its lower surface is open, and a power terminal 307 may be provided therein. In addition, the contact terminal mounting portion 311a may be adjacent to one of the transport wheels 60. Accordingly, by installing and securing the transportation wheel 60 in the charging device, the power supply terminal 307 and the charging device can be combined with each other.

FIG. 16 is a rear view illustrating a state in which the back cover of the cleaner body 10 is open. In addition, FIG. 17 is an exploded perspective view illustrating an attachment structure of a battery and a filter according to an embodiment of the present invention.

As illustrated in the drawings, a back cover 314 may be provided on the back surface of the cleaner body 10. The back cover 314 can be rotatably mounted in the base 31 and can be formed to open and close the rear hole 317 formed by the base 31 and the upper decoration 37 by rotation.

A back cover bounding portion 314a that is selectively attached to the rear end of the upper decoration 37 may be formed at the upper end of the back cover 314. Consequently, the back cover 314 can be opened and closed by operation of the back cover bounding portion 314a.

In addition, the rotational shaft of the cover 314b is configured to protrude from each of both sides of the lower end of the rear cover 314. The rotational shaft of the cover 314b can be attached to the base 31, and the rear cover 314 can open and close the rear hole 317 by rotation around the rotational shaft of the cover 314b when the back cover 314 opens and closes.

Meanwhile, the space in which the filter and the battery pack 38 are provided may be formed in the second half portion of the cleaner body 10, i.e. back from the center of the transport wheel 60. In addition, the space in which the filter unit 39 and the battery unit 38 are housed can be defined by the lower frame 33. The lower frame 33 includes a first partition 331 and a first side wall 332, and a space in which a filter unit 39 and a battery unit 38 are provided, may be formed by attachment between the base 31 and the upper frame 34.

The filter unit 39 may include a filter housing 391, which forms an appearance, and a filter element 392, which is provided in the filter housing 391. The filter element 392 serves to filter ultrafine dust (defined as particles smaller than dust and fine dust) contained in the air passing through the dust collector 50 and the main electric motor 35, and the HEPA filter can generally be used as an element 392 filters. Of course, if necessary, various types of filters that filter ultrafine dust can be used as filter element 392.

The filter housing 391 may be located in the upper portion of the space and may be formed so as to be in contact with the lower surface of the upper frame 34 in the installed state. Therefore, all air introduced into the space through the hole 341a of the plate of the upper frame 34 can be cleaned as it passes through the filter unit 39, it can cool the battery unit 38, and then it can be released to the outside.

Part of the air introduced into the space through the through hole 341a of the plate can move forward through the through hole 331a of the first partition for the first partition 331 and can cool the noise filter 302 and the main PCB 301 during the above process.

A filter handle 393 may be formed at the rear end of the filter housing 391. The filter handle 393 can be accessed when the back cover 314 is open, and therefore, the user can separate the filter unit 39 from the space by gripping and pulling the filter handle 393.

In addition, a filter groove 394 may be formed in each of both side surfaces of the filter housing 391. The groove 394 of the filter can extend from the rear end of the filter housing 391 in the length direction and can be inserted into the filter guide 333 formed in the second side wall 343.

Thus, when the filter housing 391 is mounted in space, the filter housing 391 is inserted while the filter grooves 394 are aligned between the filter guides 333 formed on both side surfaces. Therefore, the filter housing 391 can be fully inserted into the space along the filter guides 333. In this state, the filter housing 391 can be maintained in a mounted state so that it contacts the lower surface of the upper frame 34.

The battery pack 38 may supply the electric power necessary to drive the vacuum cleaner 1. The battery pack 38 may be configured with a secondary cell that is rechargeable and dischargable. Of course, a power cord (not shown) for supplying electrical network power can be separately connected to the battery pack 38.

Meanwhile, although not illustrated, in the case of a model in which the battery pack 38 is not provided, a cord reel (not shown) on which the electric wire is wound to supply electrical power can be provided in place of the battery pack 38. The center of gravity can be moved backward by reel of cord.

The battery pack 38 may include a battery case 381 and a secondary cell 383 that is housed within the battery case 381. The secondary element 383 may be configured to fit in the battery case 381.

The battery case 381 may be formed with a size that is accommodated in space, and the battery grill 381a may be formed on its upper surface and lower surface and in a position corresponding to the back cover 314. Therefore, air passing through the filter unit 39 and introduced into the space can cool the secondary cell 383 as it passes through the inside of the battery case 381 through the battery grate 381a.

In addition, the battery handle 382, which is gripped by the user when the battery pack 38 is inserted or removed from the space, may be formed on the rear surface of the battery case 381. In addition, grooves 384 for the battery can be formed on both side surfaces of the housing 381 of the battery. Battery slots 384 may be recessed from both of the side surfaces of the battery case 381 and may extend backward from the front ends.

The battery guide 334 formed in the lower portion of the first side wall 332 is inserted into the battery groove 384. When the battery pack 38 is installed, the battery guide 334 can be inserted along the groove 384 for the battery, and therefore, the battery pack 38 can be correctly installed.

Meanwhile, a battery bounding portion 335 and a battery bounding member 336 may be provided in the battery guides 334 on both sides of the first side wall 332, respectively. The bounding portion 335 of the battery and the bounding member 336 of the battery can serve to enable the battery pack 38 to be kept in a fixed state within the space, can be located in positions facing each other, and can be captured and limited by the bounding grooves 385 of the battery formed on both sides of the casing 381 of the battery.

In particular, the battery boundary portion 335 may include a first elastic portion 335a that is formed by cutting out a portion of the first side wall 332 and a first boundary protrusion 335b that is formed at the end of the first elastic portion 335a. Therefore, while the battery pack 38 is inserted, the first elastic portion 335a can elastically deform, and when the battery pack 38 is fully inserted, the first restriction protrusion 335b is caught and limited by the battery restriction grooves 385 and, therefore, can limit one side of the battery pack 38.

Meanwhile, the battery bounding member 336 is mounted and attached to the first side wall 332, which faces the battery bounding portion 335. A lateral through hole 334a, which has a shape corresponding to the battery bounding member 336, is open in a first side wall 332 in which the battery bounding member 336 is mounted. In addition, the fastening portion 334b of the restriction member to which the perimeter of the battery restriction member 336 is fitted and attached can be formed in the side opening 334a. Therefore, the battery restriction member 336 can be mounted and secured by fitting, and a hook can be formed at the end of the fastening portion 334b of the restriction member, and therefore, the battery restriction member 336 can be held in a fixed state.

The battery bounding member 336 may be formed from a type of material different from the type of material for the battery bounding portion 335. For example, the battery boundary portion 335 may be integrally formed with the lower frame 33 and may be injection molded with ABS material. In addition, the battery bounding member 336 may be injection molded with POM material. The battery bounding member 336 and the battery bounding portion 335 can be formed separately from different materials with respect to each other, thereby can prevent damage to the bounding portion when the battery pack 38 is installed, and can be more efficiently connected.

The battery restriction member 336 may include a restriction element flange 336a having a quadrangular shape corresponding to the side opening 334a. The bounding member flange 336a may be maintained in a mounted and fixed state in the side opening 334a by the perimeter of the battery bounding portion 335. In addition, the battery bounding member 336 may include a second elastic portion 336b and a second bounding protrusion 336c.

The second elastic portion 336b and the second bounding protrusion 336c may have shapes corresponding to the first elastic portion 335a and the first bounding protrusion 335b. Thus, the second elastic portion 336b may be formed by cutting out the inside of the battery confining member 336, may extend a predetermined length, and may have elasticity. In addition, a second bounding protrusion 336c may be formed at the end of the elongating second elastic portion 336b.

Therefore, while the battery pack 38 is inserted, the second elastic portion 336b can elastically deform, and when the battery pack 38 is fully inserted, the second restriction protrusion 336c can be caught and limited by the battery restriction grooves 385 and thereby limit the battery pack 38 .

Meanwhile, the battery terminal 331b, which is connected to the battery unit 38 while the battery unit 38 is fully inserted, can be provided at the lower end of the first partition 331. The battery terminal 331b can protrude in the insertion direction of the battery unit 38 and can be configured to attach to the front surface of the battery pack 38. In addition, the contact terminal of the battery 331b may be electrically connected to the battery pack 38 and may supply electrical th power for driving the internal components of the vacuum cleaner 1.

The holder 371 can be provided above the rear opening 317, which is protected by the back cover 314. The holder 371 serves to secure, install and place the extension pipe 22 when the vacuum cleaner 1 is not used, and can be formed so that the hole 371a formed in it, it becomes narrower from its upper side of the hole to its lower side.

In addition, the holder 371 can be molded separately from the upper decoration 37 and can be inserted and mounted in the upper decoration 37. In addition, the holder 371 can additionally be attached to the housing part 30 by the holder fastening element 371b, and damage can be prevented when it is pushed and the load is formed due to the installation of the extension pipe 22. The holder 371 may be formed of a metal material. The holder 371 can be molded by injection molding and can have higher strength.

FIG. 18 is a cross-sectional view of the cleaner body 10 before the battery is installed. In addition, FIG. 19 is a cross-sectional view of the cleaner body 10 in a state in which the battery is installed.

As illustrated in FIG. 18, before the battery pack 38 is installed, the battery bounding portion 335 and the battery bounding member 336 are located in positions that face each other. In addition, the first elastic portion 335a and the second elastic portion 336b are in a state in which no external force is applied to them, and the first limiting protrusion 335b and the second limiting protrusion 336c are in the protruding state in the inner space of the lower frame 33.

In this state, the user can open the back cover 314 to provide access to the space, and then can install the battery pack 38. After the back cover 314 is open, the battery pack 38 is inserted into the space. At this point, the battery pack 38 can slide in while the battery guide 334 and the battery groove 384 are aligned. When the battery pack 38 is fully inserted, the front surface of the battery pack 38 may attach to the terminal of the battery 331b and may supply electrical power to the interior of the cleaner body 10.

While the battery pack 38 is fully inserted and installed, the front surface of the battery pack 38 is in contact with the first partition 331, as illustrated in FIG. 19. While the battery pack 38 is inserted, the first elastic portion 335a and the second elastic portion 336b are elastically deformed to the outside. Furthermore, in the state in which the battery pack 38 is inserted, the first restriction protrusion 335b and the second restriction protrusion 336c can be inserted into the battery restriction grooves 385 formed on both side surfaces of the battery case 381 and can be held in a fixed state.

FIG. 20 is a perspective view of a cover member. In addition, FIG. 21 is an exploded perspective view of a lid member. In addition, FIG. 22 is a partial cross-sectional view illustrating an attachment structure of a cover member and an obstacle detection member.

As illustrated in the drawings, the lid member 40 may form an upper portion of the cleaner body 10 and may be configured to have a structure that protects the upper end of the upper decoration 37 and the upper end of the dust collector 50.

The lid member 40 may generally include a lid base 42 and an outer lid 43. The lid base 42 forms the lower surface of the outer lid 43 and substantially protects the dust collector 50 and the open upper surface of the housing portion 30.

A cap member attachment portion 421 is formed at a rear edge of the cap base 42, and a cap member attachment portion 421 may be coupled by shafts to the upper end of the housing portion 30, more specifically, to the rear end of the upper trim 37. In addition, the connection hole 422, which is connected to the fitting 401, may be formed on the front edge of the base 42 of the cover.

An obstacle detection element 44 may be provided at the base 42 of the lid. The obstacle detection element 44 serves to check the obstacle while the vacuum cleaner body 10 is moving, and may be located along the front surface of the cover base 42.

A plurality of obstacle detection elements 44 may be provided in the center of the front surface of the cover base 42, i.e. both of the left and right sides with respect to the fitting 401. Thus, two obstacle detection elements 44 can be provided in each of the left and right sides with respect to the center of the cover base 42, and each of the obstacle detection elements 44 can be configured to have a detection range of approximately 25 ° using a laser sensor 441. In addition, the plurality of obstacle detection elements 44 may be arranged such that adjacent obstacle detection elements 44 are directed in different directions relative to each other.

Obstacle detection elements 44 may include front sensors 44b and 44c and side sensors 44a and 44d. The front sensors 44b and 44c serve to detect an obstacle located in front of the cleaner body 10. When an obstacle appears in front of the cleaner body 10 while the cleaner body 10 is moving, the front sensors 44b and 44c detect an obstacle. In addition, the side sensors 44a and 44d serve to detect an obstacle located on the transverse side of the cleaner body 10. When an obstacle appears in the transverse side adjacent to the vacuum cleaner body 10, while the vacuum cleaner body 10 moves, the side sensors 44a and 44d detect the obstacle. In particular, the side sensors 44a and 44d allow the vacuum cleaner body 10 to be moved without collision with a wall surface angle through a combination of front sensors 44b and 44c.

More specifically, the front sensors 44b and 44c, respectively, can be located on the left and right sides of the fitting 401 and can be arranged to emit light in a diagonal direction between the front and transverse sides. Thus, as illustrated in FIG. 22, the centers of the front sensors 44b and 44c can be located in positions that rotate clockwise and counterclockwise by 45 ° relative to the center of the fitting 401. Therefore, the centers of the front sensors 44b and 44c can form a 90 ° angle relative to each other.

In addition, since the detection range of each of the obstacle detection elements 44 is approximately 25 °, an undetected region S is formed between the front sensors 44b and 44c. The undetected region S may have an angle of 65 °. The undetected area S is an area in which the suction hose 24 can be located while the vacuum cleaner body 10 is moving, and which prevents the suction hose 24 from being viewed as an obstacle by the front sensors 44b and 44c. Thus, even when the user moves the suction hose 24 during the cleaning operation, erroneous recognition by the front sensors 44b and 44c of the suction hose 24 as an obstacle can be prevented, and therefore, abnormal movement of the vacuum cleaner body 10 can be prevented.

The side sensors 44a and 44d are located on the rear side further than the front sensors 44b and 44c and are arranged to emit light to the transverse side of the cleaner body 10. Thus, the side sensors 44a and 44d can be located on both sides relative to the fitting 401 to form an angle of approximately 90 °. Therefore, the side sensors 44a and 44d can detect an obstacle appearing in the transverse side of the cleaner body 10.

Meanwhile, each of the side sensors 44a and 44d may be configured to have a detection distance less than the detection distance of each of the front sensors 44b and 44c. For example, each of the front sensors 44b and 44c may be configured to have a detection distance L1 of approximately 600 mm to the front side, and each of the side sensors 44a and 44d may be configured to have a detection distance L2 of approximately 350 mm to the transverse side .

Since an obstacle located in front of the vacuum cleaner body 10 has a high probability of interfering with the vacuum cleaner body 10 while the vacuum cleaner body 10 is moving, it is necessary to detect an obstacle that is located at a great distance. In the case of an obstacle which is located in the transverse side, there is a low probability of interference with the vacuum cleaner body 10 while the vacuum cleaner body 10 is moving and when a distant object located in the transverse side is recognized as an obstacle, it may not be possible that the body 10 vacuum cleaner moves normally.

In particular, when the detection distance L2 of each of the side sensors 44a and 44d is set less than the detection distance L1 of each of the front sensors 44b and 44c, the cleaner body 10 can smoothly move away from the wall surface or corner while passing the wall surface or corner.

Meanwhile, the obstacle detection elements 44 may include a laser sensor 441 and a sensor substrate 442 on which the laser sensor 441 is mounted. Elements for actuating or controlling the laser sensor 441 may further be mounted on the sensor substrate 442. Of course, instead of the laser sensor 441, various means, such as an ultrasonic sensor, a proximity sensor and a video camera that detect an obstacle located on the front side, can be used as obstacle detection elements 44.

In addition, the locking assembly 80, which enables selective restriction of the lid member 40, may further be provided between the lid base 42 and the outer cover 43. The locking assembly 80 may include a push member 81 and a main rod 83 and an auxiliary rod 84, which are mutually engage with the pressure member 81.

The outer lid 43 forms the appearance of the lid member 40 and forms the appearance of the upper portion of the vacuum cleaner body 10 while the lid member 40 is closed. A fitting 401 connected to the transition portion 241 of the suction hose 24 is formed at the front end of the outer cover 43. The fitting 401 is connected to the connecting hole 422 and allows the introduction of dust and air drawn in through the suction unit 20 to the dust collector 50.

A detection hole 431 may be formed on the front surface of the outer cover 43 with respect to the fitting 401. The detection hole 431 may be opened in a position corresponding to the laser sensor 441 and may be formed so that light for detecting an obstacle is transmitted and received through it.

Meanwhile, the detection hole 431 may be opened in a position corresponding to each of the front sensors 44b and 44c and the side sensors 44a and 44d, and may be formed so that both of its inner side surfaces are inclined. Accordingly, light can be emitted through a predetermined range of angles.

In addition, if necessary, an opening cover 432, which is formed from a material through which light from the laser sensor 441 is passed, and which protects the detection hole 431, can additionally be provided in the detection hole 431. The plurality of detection holes 431 may be formed at the same height and may be located in positions symmetrical to each other with respect to the fitting 401. As described above, the detection holes 431 and the obstacle detection elements 44 may be located on the front surface of the lid member 40 that is not protected by means of the housing part 30, but are accessible from the front to detect an obstacle while the vacuum cleaner body 10 is moving.

The gripping portion 41 may be formed on the upper surface of the outer cover 43. The gripping portion 41 may extend from one side of the fitting 401 to the rear end of the outer cover 43. In addition, a pressure member 81 that is pressed by the user to selectively limit the cover member 40 may be provided in the gripping portion 41. Through the operation of the pressing member 81, the cap lug protrusion 843 can selectively protrude to both sides of the cap member 40 and can selectively limit the cap member 40 to a portion 30 rpusa.

FIG. 23 is an exploded perspective view illustrating an attachment structure of a locking assembly according to an embodiment of the present invention.

As illustrated, the locking assembly 80 may include a pressure member 81 that is pressed by the user, a transmission member 82 that conveys the operation of the pressure member 81, a main rod 83 that rotates by the transmission element 82, and an auxiliary rod 84 that moves horizontally by rotation of the main rod 83.

The pressure member 81 may be located inside the gripping portion 41 and may be positioned so that it is movable vertically. The gripping portion 41 may be formed by attaching the cover 411 of the gripping portion to the housing 412 of the gripping portion, and the pressure member 81 may be installed in the housing 412 of the gripping portion. A cap hole 411a may be formed in the cap portion 411 of the grip portion, and the pressure member 81 may be accessible through the cap hole 411a.

A portion 811 for installing the transmission element, which continues downward, is formed on the lower surface of the pressure element 81. The transmission element 82 is installed in the section 811 for installing the transmission element. The transmission element 82 and the pressure element 81 can be connected via shafts to each other. When the pressure member 81 is vertically moved, the transmission member 82 may vertically move with it while rotating at a predetermined angle.

In addition, the inclined section 821 of the transmission element can be formed on the lower surface of the transmission element 82. The inclined section 821 of the transmission element serves to contact the main link 83, which is described below, and to move the main link 83, and is formed so that it the width increases upward from the lower end to form an inclined surface.

The main link 83 and the auxiliary link 84 may be coupled and mutually engaged with each other, and one pair of main links 83 and one pair of auxiliary links 84 can be provided on the left and right sides relative to the center of the base 42 of the cover, respectively. Thus, the main rods 83 and the auxiliary rods 84 may include a first main rod 83a and a first auxiliary rod 84a, which are provided on the left side with respect to FIG. 23, and a second main rod 83b and a second auxiliary rod 84b, which are provided on the right side.

The main rod 83 can be rotatably connected to the cover base 42 by means of a mounting sleeve 85. The main rod 83 includes a through section 831 through which the mounting sleeve 85 passes, a first extension section 832 that extends from the through section 831 to its center, in which is the transmission element 82, and the second extension section 833, which extends from the through section 831 in a direction vertical to the first extension section 832.

Meanwhile, the connecting portion 834 formed in the first extension portion 832 of each of the first main link 83a and the second main link 83b can be formed so that it can overlap with each other. An extension portion hole 834b and an extension portion protrusion 834a that rotatably attach to each other are formed in the first extension portions 832, and therefore, the first main link 83a and the second main link 83b can interlock with each other.

In addition, the inclined surface 834c of the extension portion corresponding to the inclined portion 821 of the transmission element is formed at one end of the first extension portion 832, i.e. on its one side that is in contact with the transfer member 82. The inclined surface 834c of the extension portion is maintained in contact with the inclined portion 821 of the transfer member, and the inclined portion 821 of the transfer member vertically moves along the inclined surface 834c of the extension portion according to the vertical movement of the transfer member 82, and therefore, the first extension portion 832 can move back and forth. The first main link 83a and the second main link 83b can rotate according to the forward and reverse movement of the first extension portion 832.

The auxiliary rod 84 may be rotatably attached to the end of the second extension portion 833. Thus, the first auxiliary rod 84a and the second auxiliary rod 84b are attached to the ends of the pair of the second extension portions 833, respectively. In addition, traction holes 833a can be formed at the ends of the second extension portions 833, and traction protrusions 841a that connect to the traction holes 833a can be formed in the first auxiliary rod 84a and the second auxiliary rod 84b. Therefore, when the main link 83 rotates, the auxiliary link 84 can mutually engage with it.

A traction guide 423 may be formed at the base 42 of the cover. A traction guide 423 is formed in a position corresponding to the position of each of the first auxiliary traction 84a and the second auxiliary traction 84b, and the space in which the first auxiliary traction 84a and the second auxiliary traction 84b are located is formed therein. The traction guide 423 may take the form of one pair of ribs and can guide the auxiliary traction 84 so that it is movable while the auxiliary traction 84 is located between them.

Each of the first auxiliary rod 84a and the second auxiliary rod 84b may include a third extension portion 841, which is located in the thrust guide 423, and a fourth extension portion 842, which is vertically bent from the third extension portion 841. In addition, the bounding lug protrusion 843, which protrudes laterally, can be formed in the third extension section 841.

An inclined surface 843a may be formed on the side surface of the cap lug protrusion 843. The inclined surface 843a may be formed so that its width increases from the lower end to the upper end. Therefore, while the lid member 40 is closed, the inclined surface 843a of the lid bounding protrusion 843 can be inserted inwardly when in contact with the side wall of the upper decoration 37, and then can protrude outward so that it is limited when reaching the projecting bounding hole 376 (in FIG. .28) top decoration 37. For this purpose, the upper end of the bounding protrusion 843 of the lid may have a flat shape.

In addition, the protrusion inlet 424 through which the cap bounding protrusion 843 is inserted and removed can be formed on a side surface of the cap base 42 corresponding to the position of the traction guide 423. When the second auxiliary link 84b is horizontally moved, the cap limiting protrusion 843 can be inserted and removed through the protrusion inlet 424. The cap bounding protrusion 843 is captured and limited by the cap limiting hole 376 of the protrusion (in FIG. 28) of the housing portion 30 when protruding from the protrusion inlet 424 and makes it possible to maintain the cap element 40 in a closed state.

Meanwhile, although not illustrated, an elastic element, such as a spring, can be provided in at least one of the pressure element 81, the main rod 83 and the auxiliary rod 84. Due to the elastic element, the limiting protrusion of the cover can be maintained in a protruding state at a time when external force through the user operation is not provided.

FIG. 24 is a perspective view illustrating a state before the locking assembly operates. In addition, FIG. 54 is a cross-sectional view illustrating a state before the locking assembly is operated.

As illustrated in the drawings, while the pressure member 81 is not user controlled, the transmission member 82 may be maintained in contact with the main link 83. At this point, the transmission member 82 is located on the uppermost side and the inclined portion 821 of the transmission member is in contact with the inclined surface 834c of the extension portion.

In addition, the guide inclined surface 822 may further be formed on the lower end of the transmission element 82. The guide inclined surface 822 may be in contact with the guide 412a of the transmission element formed in the cover base 42. Thus, when the transfer member 82 moves downward, the transfer member 82 allows the guide inclined surface 822 to move along the guide 412a of the transfer member. At this point, the guide element 412a of the transmission element extends so that it vertically crosses the main link 83, and as a result of this, the transmission element 82 can move in a direction that crosses the main link 83 when moving downward, and can control the main link 83.

At this point, the first main link 83a and the second main link 83b are supported on an identical extension line, and the main link 83 is maintained in a state in which no external force is applied. The cap bounding protrusion 843 is maintained in a trapped and restricted state by the cap protruding hole 376 (in FIG. 28) of the housing portion 30 when protruding from the protrusion inlet 424, and thereby makes it possible to maintain the cap element 40 in a closed state.

In this state, the user presses the pressure member 81 to open the cover member 40. Due to the operation of the pressure member 81, the main link 83 and the auxiliary link 84 are mutually engaged with each other, and the cover member 40 is in an openable state.

FIG. 26 is a perspective view illustrating the operating state of the locking assembly. In addition, FIG. 27 is a cross-sectional view illustrating an operating state of the locking assembly.

As illustrated in the drawings, when the user presses the pressure member 81, the transmission member 82 moves downward. At this point, the transmission element 82 can rotate by means of a rotational shaft 811a formed in the transmission element mounting portion 811, and can vertically push the main rod 83. At this moment, to prevent excessive rotation and separation of the transmission element 82, one pair of protrusions 824 for separation prevention can protrude from the upper end of the transmission element 82 so that they are spaced apart from each other by a predetermined distance, and a rib 812 to prevent separation of the pressure element 81 m May be located between projections 824 to prevent separation.

When the transfer member 82 moves downward while the inclined portion 821 of the transfer member is in contact with the inclined surface 834c of the extension portion, the inclined surface 834c of the extension portion makes relative movement along the inclined portion 821 of the transfer member. Thus, the first extension portion 832 is pushed forward. At this point, since the first main link 83a and the second main link 83b are connected to each other, the first extension portion 832 also moves forward with them.

When the first extension portion 832 moves forward, the main rod 83 rotates using the portion 831 as an axis, and the second extension portions 833 move in such a direction that they become closer to each other. Therefore, the first auxiliary link 84a and the second auxiliary link 84b, which are connected to the second extension portion 833, are horizontally moved inward. Due to the horizontal movement of the auxiliary rod 84, the limiting lug protrusion 843 formed in the auxiliary rod 84 also moves horizontally to the inside of the protrusion inlet 424.

In this state, since the cap bounding protrusion 843 is located in the cap member 40, the restriction by the cap protruding hole 376 (in FIG. 28) of the housing portion 30 can be terminated. Therefore, the user can rotate the lid member 40 while gripping the gripping portion 41 of the lid member 40 and can open the inside of the housing portion 30 or can separate the dust collector 50 from the housing portion 30.

Meanwhile, as illustrated in FIG. 26, a display 45 for displaying the operating state of the vacuum cleaner 1 may be provided in the lid member 40. The display 45 may be configured to display information on the upper surface of the lid member 40 and may be located on the transverse side of the gripping portion 41 so that the user can easily check the state of the vacuum cleaner 1 from the upper side when using the vacuum cleaner 1.

The display 45 may be formed in various types, for example, as a liquid crystal display, a combination of a plurality of LEDs and a 7-segment indicator, and may be configured to provide information visibility. The display 45 may be defined as one configuration for outputting an image, and may also be configured to include a display PCB 451 on which the display 45 is mounted.

The display 45 can be mounted on the base 42 of the cover and can be formed with the ability to be protected by the outer cover 43. At this point, all or part of the outer cover 43 can be formed with the ability to transmit light. Therefore, when the display 45 protected by the outer cover 43 is operating, information can be displayed outward through the outer cover 43.

To this end, the entire outer cover 43 may be formed of material that transmits light. Otherwise, only a part thereof corresponding to the display 45 can be formed with the possibility of transmitting light. Of course, a hole can be formed in the outer cover 43, and the display 45 can be mounted in the hole with the ability to be directly accessible from the outside or protected by a separate transparent cover.

The display 45 can be mounted and attached to the upper surface of the base 42 of the cover. The display 45 may be connected to the main PCB 301 via the display cable 452. Therefore, the display 45 may be energized by electric power and information transmitted from the main PCB 301.

The display 45 may display the operating status of the vacuum cleaner 1 and may be configured to display, for example, the residual value of the battery capacity of the battery pack 38 or the working time with the current residual value of the battery capacity. In addition, the display 45 may display the abnormal operating state of the vacuum cleaner 1 or information regarding replacement of the dust collector 50 and the like.

FIG. 28 is a plan view of a lid member in which a display according to an embodiment is in an off state. In addition, FIG. 29 is a plan view of a lid member in which a display according to an embodiment is on.

With reference to the drawings, while the vacuum cleaner 1 is not working, the display 45 is in the off state. In this state, as illustrated in FIG. 28, the display 45 is closed by the outer cover 43 and is therefore invisible from the outside, and only the appearance of the outer cover 43 can be accessed.

When the operation of the vacuum cleaner 1 begins by means of a user operation, the display 45 is turned on, and the image displayed on the display 45 may be visible externally through the outer cover 43. Thus, when the display 45 becomes bright due to the output of the image on the display 45, the light of the display 45 may pass through the outer cover 43, and therefore, the image on the display 45 may be visible from the outside.

The display 45 may display the status of the battery pack 38 of the vacuum cleaner 1 in the form of an image. The user can check the status of the battery pack 38 through the image displayed on the display 45, and can determine the charge of the battery pack 38 or the cleaning operation.

Of course, the display 45 may display various information other than the charge state of the battery pack 38.

FIG. 30 is a perspective view illustrating a state in which the lid member is open. In addition, FIG. 31 is an exploded perspective view illustrating an attachment structure of a tie rod assembly according to an embodiment of the present invention.

As illustrated in the drawings, a cap member attachment portion 421 is formed at the rear end of the cap member 40, and a cap member attachment portion 421 may be coupled to a cap member attachment hole 372 formed in the upper decoration 37 of the body portion 30. When the cap member attachment portion 421 is attached to the cap member hole 372, the cap member 40 can be rotatably mounted. The lid member 40 can rotate using the portion 421 to attach the lid member as an axis and can open and close the inside of the housing portion 30.

The lid member 40 can also open and close when the dust collector 50 is detached. When the lid member 40 is kept open during such an operation, the dust collector 50 can more easily be detached.

In particular, since a structure in which the transition portion 241 of the suction hose 24 is mounted is provided at the front end of the cap member 40, the cap member 40 is structurally naturally closed due to the weight of the suction hose 24.

In this state, the tie rod assembly 90, which connects the rear end of the lid member 40 to the inside of the upper decoration 37, can be provided with the ability to maintain the open state of the lid member 40.

Node 90 with rods may include a rotating rod 91, which is installed in section 421 for attaching a cover element, a sliding element 92, which is attached to the rotating rod 91 so that it moves with the possibility of sliding when the rotating rod 91 rotates, and the spring 93 which resiliently supports the sliding member 92.

The rotating rod 91 may include a rotating section 911, which is rotatably mounted in the section 421 for attaching a cover element, and supporting sections 912 that extend from both side ends of the rotating section 911 so that they are spaced apart.

A rotating portion 911 may be inserted between one pair of cover member attachment portions 421 and a rotary shaft 911a that protrudes laterally from each of both side ends of the rotating portion 911 may be inserted into a rotation shaft bore 421a formed in the cover member attachment portion 421. Therefore, the rotary rod 91 can be rotatable around the rotational shaft 911a and can rotate when the lid member 40 opens and closes.

The supporting sections 912 may extend spaced apart from each other, and the space portion 913 in which the end of the sliding member 92 is housed may be formed between the pair of supporting sections 912. The fastening portion 912a of the sliding member and the supporting protrusion 912b may be formed at the ends pairs of supporting sections 912, respectively.

The fastening portion 912a of the sliding member protrudes toward the opposite end of the support portion 912 and is located within the space portion 913. The fastening section 912a of the sliding element can be inserted into the fastening groove 921 of the sliding element of the sliding element 92. In addition, the fastening section 912a of the sliding element can be a rotational shaft of the sliding element 92 or a rotational shaft of the rotating rod 91.

The support protrusion 912b is formed so as to protrude laterally from the edge of the support portion 912 along its outer surface. The support protrusion 912b may protrude outwardly and can be selectively caught and limited by the engaging protrusion 375a within the portion 373 for accommodating the tie rod assembly, which is described below when the lid member 40 opens and closes.

Meanwhile, a support gap 912c may be formed at each of the ends of the support portions 912. The support gap 912c allows simple elastic deformation of the ends of the support portions 912 when the support protrusion 912b and the engaging protrusion 375a interact with each other.

The rear end of the sliding member 92 is located inside the space portion 913, and its front end may be located in the portion 373 to accommodate the tie rods formed in the housing portion 30.

The fastening groove 921 of the sliding element which is recessed inwardly can be formed in each of the left and right side surfaces of the sliding element 92. The fastening groove 921 of the sliding element is formed with the possibility of opening backward and formed with the possibility of placing the fastening section 912a of the sliding element, which has the shape of a shaft . In addition, the sliding element 92 can mutually engage with the rotating rod 91.

In addition, the guide 922 of the sliding element can be formed in front of the mounting groove 921 of the sliding element. The guide 922 of the sliding element can extend from the edge of the mounting groove 921 of the sliding element to the end of the sliding element 92. The guide 922 of the sliding element has one pair of ribs, respectively provided on the left and right sides, accommodates the guide rib 374a, which is described below, and allows smooth moving the sliding element 92.

In addition, a spring hole 923, which is recessed inwardly, is formed on the rear surface of the sliding element 92. The spring 93 can be inserted and installed in the spring hole 923, can be compressed or elastically deformed according to the movement of the sliding element 92, and can provide elasticity to the sliding element 92.

Meanwhile, the site 373 to accommodate the node with rods can be formed in the upper decoration 37. The section 373 to place the node with rods can be provided on the upper surface of the housing part 30 and can be formed with a size that allows the insertion and removal of the sliding element 92 and a rotating rod 91.

In particular, the portion 374 for accommodating the sliding member in which the sliding member 92 is housed may be formed centrally within the portion 373 to accommodate the tie rod assembly. In addition, the guide rib 374a is formed with the ability to protrude from each of both surfaces of the walls of the section 374 to accommodate the sliding element. The guide rib 374a can protrude into the sliding element guide 922 and can be formed to extend in the insertion direction of the sliding element 92. Therefore, the guide rib 374a and the sliding element guide 922 prevent the sliding element 92 from being separated and allow the sliding sliding to move element 92 along a predetermined route when the sliding element 92 is slidably moved forward and backward.

A thrust holding portion 375, into which a rotating thrust 91 is selectively inserted, may further be formed in a holding portion 373 for hosting the tie rod assembly. The thrust accommodating portion 375 may be located at the rear side of the sliding member portion 374, may provide a space in which the rotating rod 91 is housed, and may open backward.

The engaging protrusion 375a, which protrudes inwardly, may be formed so as to protrude from the surface of the inner wall of the portion 375 to accommodate the traction. The engaging protrusion 375a may support the abutment protrusion 912b formed in the abutment portion 912 while the lid member 40 is open and the rotary rod 91 is removed, and may enable the rotary rod 91 to be maintained in an extractable state.

At this point, the engaging protrusion 375a may protrude so that it tilts at a predetermined angle, and therefore may provide the ability to support the rotating rod 91 in an inclined state when the support protrusion 912b is supported. Thus, when the engaging protrusion 375a supports the support protrusion 912b, the lid member 40 may be allowed to be supported in an inclined state, and therefore, it may be maintained in an open state.

In addition, the open and closed state of the lid member 40 can be determined by supporting the protrusion 912b by the engaging protrusion 375a or moving along the engaging protrusion 375a according to a rotation operation by the user of the lid member 40.

FIG. 32 is a cross-sectional view illustrating the state of the tie rod assembly when the lid member is closed.

With reference to the drawing, the state of the link assembly 90 is described below while the lid member 40 is in the closed state. At that time, when the lid member 40 is in a closed state, the lid member 40 protects the open upper surface of the housing portion 30. The lower end of the cover element 40 is in contact with the lower end of the upper decoration 37, and the node 90 with the rods of the cover element 40 is in a limited state by the upper decoration 37.

In addition, the sliding element 92 and the rotating rod 91 are in the inserted state inside the portion 373 to accommodate the node with the rods of the upper decoration 37, and the rotating rod 91 is supported in a horizontal state with the sliding element 92 or on an extension line identical to the extension line of the sliding element 92 .

At this point, since the sliding member 92 is fully inserted into the portion 374 to accommodate the sliding member, the spring 93 is in the most compressed state. Therefore, when the user stops restricting the locking assembly 80 to open the lid member 40, the sliding member 92 can be pressed by the elastic force of the spring 93, and therefore, the force can naturally be applied in the direction of rotation of the lid member 40.

In this state, the user presses the pressure member 81 and controls the locking assembly 80 so as to open the cover member 40, and therefore, the restriction of the cover member 40 and the body portion 30 is stopped, and the cover member 40 is in an open state. In addition, the user can grab the grip portion 41, can rotate the lid member 40, and then can open the lid member 40.

FIG. 33 is a cross-sectional view illustrating a state of a tie rod assembly while the lid member is open. In addition, FIG. 34 is an enlarged view of the A portion of FIG. thirty.

With reference to the drawings, the state of the link assembly 90 is described below while the lid member 40 is in the open state. When the lid member 40 is opened by the user, the lid member 40 can rotate clockwise using the portion 421 to attach the lid member as an axis, and therefore can be opened.

At this point, the rotating rod 91, which rotatably connects to the lid member 421, also rotates with it, and the sliding element 92 connected to the rotary rod 91 slides backward (to the right side in FIG. 33) by guiding the sliding member guide 922 and the guide rib 374a. When the sliding member 92 moves, the spring 93, which resiliently supports the sliding member 92, provides elasticity, and therefore, the sliding member 92 can more easily be moved.

In addition, the rotating rod 91 horizontally moves along the sliding element 92 to pull and pull the sliding element 92, and at the same time rotates counterclockwise. At this point, the support protrusion 912b of the rotating rod 91 is in contact with the engaging protrusion 375a in the portion 373 to accommodate the rod assembly.

When the lid member 40 is fully opened by the user, the rotating rod 91 may be in the state illustrated in FIG. 33 and 34. At this point, the support protrusion 912b may pass by the engaging protrusion 375a by a rotation operation of the user of the lid member 40, and the support portion 912 is elastically deformed such that the support protrusion 912b moves along the engaging protrusion 375a.

In this state, the opening of the lid member 40 may stop. Even when the user releases the gripping portion 41, the support protrusion 912b is in contact with the engaging protrusion 375a, and therefore, the rotary rod 91 can be maintained at a predetermined angle. Therefore, the lid member 40 can maintain an open state at a predetermined angle. While the lid member 40 is open, the user can detach or install the dust collector 50 or can perform any necessary operations in the housing portion 30.

Meanwhile, in the state illustrated in FIG. 33 and 34, when it is desired to close the lid member 40 again, the user can grab the grip portion 41 and can press the lid member 40, and therefore, the lid member 40 can be closed counterclockwise.

At this point, at a time when the counterclockwise rotation of the lid member 40 begins, the support protrusion 912b can move along the engaging protrusion 375a by a force exerted by the user, and the support portion 912 can elastically deform so that the support protrusion 912b moves easily.

The lid member 40 is in the state illustrated in FIG. 32, with full rotation and closing. When the lid member 40 is closed, the lid bounding protrusion 843 of the latching assembly 80 is inserted and delimited within the lug limiting opening 376, and the lid 40 can be kept closed.

Meanwhile, the display cable 452 can be routed to the housing portion 30 through a portion 46 for attaching a cover member that extends backward from the rear end of the cover member 40. The display cable 452 is routed along the inside of the portion 46 for attaching the cover member so that it is not accessible from the outside. Furthermore, since the display cable 452 is routed to the housing part 30 through the rear end of the cover portion 46, which is the center of rotation of the cover member 40, it is possible to prevent the display cable 452 from opening outward and also to prevent damage to the display cable 452, although the opening operation and closing the lid member 40 is continuously performed.

FIG. 35 is a partial perspective view illustrating a structure of a portion for attaching a cover member and placement of a display cable according to an embodiment of the present invention.

The construction of the portion 46 for attaching the cover member is described in detail below with reference to the drawing. One pair of lid member attachment portions 46 can extend backward from both left and right sides, can be inserted into the cleaner body 10, and rotatably connected.

The cap member attachment portion 46 may include a curved portion 461 that extends downward from the rear edge of the cap base 42 by a predetermined length, and an extension portion 462 that extends backward from the edge of the curved portion 461.

An opening 463 of the curved portion into which the rotational shaft 911a of the rotating portion 911 of the rotating rod 91 is inserted can be formed on the inner surface of each of the curved portions 461 provided on the left and right sides. Therefore, one end of the rotating rod 91 can be located in the space between one pair of curved sections 461 and can be rotatably connected to the inner surface of the curved section 461.

In addition, the cover rotational shaft 464 may be formed at both lateral ends of the extension portion 462. The cover rotation shaft 464 may protrude outward from the outer surface of the extension portion 462 and may be coupled by shafts to the hole 372 for attaching the cover element of the upper decoration 37. Therefore, the lid member 40 can rotate around the end of the portion 46 to attach the lid member, i.e. rotational shaft 464 of the cover, and can be opened and closed by rotation.

Meanwhile, the lid member attachment portion 46 has a guide space 465 recessed therein. The guide space 465 may be formed from the front end of the portion 46 for attaching the cover element to its rear end. In addition, a cable hole 466 may be formed at the rear end of the guide space 465, i.e. at the rear end of the portion 46 for attaching a cover element.

Therefore, while the lid member 40 is rotatably attached to the upper decoration 37, the lid member attachment section 46 is inserted into the decorative hole 377 of the upper decoration 37. Furthermore, in this state, the lid member 46 can be attached. enable the inner part of the lid member 40 and the inner part for the housing part 30 to communicate with each other.

The display cable 452 may be located in the guide space 465 of the portion 46 for attaching the cover element. The display cable 452 may be routed along the portion 46 for attaching the cover member, may extend through the cable hole 466, and then may be inserted into the housing portion 30. In addition, the display cable 452 inserted into the housing portion 30 can be connected to the main PCB 301. Of course, the display cable 452 can be connected to another PCB or power supply element in the housing portion 30 rather than to the main PCB 301.

Meanwhile, a plurality of reinforcing sections 467 may further be formed in the guide space 465. Each of the plurality of reinforcing sections 467 may be rib-shaped, and a plurality of reinforcing sections 467 may be formed in the direction of passage of the portion 46 for attaching the lid member in and in a direction intersecting with him.

In addition, a stop 47 may be formed between the space between the portions 46 for attaching the cover element provided on the left and right sides. The stopper 47 may be in contact with the outer surface of the upper decoration 37 while the lid member 40 is fully open, when the rotation operation is performed to open the lid member 40, may limit the excessive rotation of the lid member 40 and thereby prevent breakage or spinning rod compartment 91.

FIG. 36 is a view illustrating a state of cable placement at a base of a cover for a cover member.

As illustrated in the drawing, the locking unit 80 may be located in the base 42 of the cover of the element 40 of the cover. The locking assembly 80 may include a pressing member 81, a transmission member 82, a main link 83 and an auxiliary link 84. At this point, the pressing member 81 may be mounted and attached to the gripping portion 41, and the remaining configurations of the locking assembly 80, except for the gripping portion 41 may be arranged to interact with each other on the base 42 of the lid.

In addition, a plurality of obstacle detection elements 44 may be located on the front surface of the lid member 40. The obstacle detection elements 44 serve to check the obstacle while the vacuum cleaner body 10 is moving, and may be located along the front surface of the cover base 42.

A plurality of obstacle detection elements 44 may be provided on the left and right sides relative to the center of the front surface of the cover base 42, i.e. the fitting 401. Thus, two obstacle detection elements 44 can be provided in each of the left and right sides with respect to the center of the base 42 of the cover. The front surface of the lid member 40 may be rounded off, and the plurality of obstacle detection elements 44 may be configured to emit light rays or ultrasonic waves to detect an obstacle in a direction vertical to the tangent line of the front surface of the lid element 40. The obstacle detection element 44 may include a video camera or a laser sensor, an optical sensor or an ultrasonic sensor that can detect an obstacle located in or adjacent to the direction of travel of the vacuum cleaner 1.

Obstacle detection elements 44 may include a plurality of sensor substrates 442 for operation of a sensor or a detection device, and a detection element cable 443 may be connected to each of the plurality of sensor substrates 442. The supply of electric power and the transmission of the detected signal for the operation of the obstacle detection element 44 may be performed via the detection element cable 443.

The plurality of detector element cables 443 can be provided with the ability to connect a plurality of sensor substrates 442 and can be guided along the inner circumference of the lid base 42 to the rear side in which the lid element portion 46 is located. At this point, the plurality of cables 443 of the detection element can be attached to the bundle by means of a cable guide element 443a, such as a retractable tube, tape or cable tie, and can pass through the portion 46 for attaching the cover element in this state. Thus, the cable guide 443a may be located in a section that extends through at least a portion 46 for attaching the cover member.

At this point, the cables 443 of the detection element can be routed to the housing part 30 through one (left in FIG. 36) of a pair of portions 46 for attaching a cover element that is located at the rear edge of the cover base 42. Therefore, damage to the cables 443 of the detection element can be prevented, although the cover element 40 is continuously controlled so that it opens and can easily be located in the housing portion 30 by passing through the portion 46 for attaching the cover element.

Meanwhile, the display 45 and the display PCB 451 may be located on the upper surface of the cover base 42. Of course, the display 45 and the display PCB 451 can be mounted and attached to the rear surface of the outer cover 43 of the cover member 40.

The display PCB 451 can be mounted and attached to the upper surface of the cover base 42, and the display 45 can be mounted on the display PCB 451. The display 45 may include a light guide 45a that is in contact with the rear surface of the outer cover 43, and a plurality of LED holes 45b may be mounted in the light guide 45a. In addition, LEDs (not shown) can be arranged in a plurality of LED holes 45b and can be independently turned on and off. Therefore, the residual value of the battery capacity of the battery pack 38 can be displayed by light that is guided by the LED holes 45b and transmitted to the outer cover 43.

Meanwhile, the display cable 452 may be installed in the display PCB 451. The display cable 452 may be configured with multiple wires and may be attached to the bundle by means of a cable guide 452a, which is identical to the cable guide 443a. The cable guide member 452a may be located in a section that extends through at least a portion 46 for attaching a cover member. In addition, the display cable 452 can be routed to the housing portion 30 through the portion 46 for attaching the cover element. At this point, the display cable 452 may be routed through another (right in FIG. 36) of the pair of portions 46 for attaching the cover member, and not through which the detection element cable 443 is guided. Thus, the detection element cable 443 and the display cable 452 can be separately routed by the pair of portions 46 for attaching the cover element, which are provided at the rear edge of the cover base 42.

FIG. 37 is a view illustrating a structure for attaching a wire to a cleaner body.

As illustrated, the detection element cable 443 and the display cable 452 can be routed to the housing portion 30 through a pair of portions 46 for attaching the lid member and can be routed without accessibility of cables from the outside even when the lid member 40 is operable to open and close by rotation.

The detection element cable 443 inserted into the housing part 30 can be routed to one side of the housing part 30 in which the transport wheel 60 is mounted. In addition, the detection element cable 443 can be connected to the detection part 306 installed in the housing part 30. Therefore, the obstacle detection signal detected by the obstacle detection element 44 can be transmitted and processed in the detection part 306, and the movement of the cleaner body 10 can also be controlled by controlling the driving of the transport wheel 60.

At this point, connectors 443b that can be connected to each other can be provided at the end of the detection element cable 443 and on one side of the detection part 306, and therefore, the detection element cable 443 and the detection part 306 can be connected by a simple operation that connects connectors 443b.

In addition, the display cable 452 inserted into the housing portion 30 may be connected to the battery pack 38 mounted on the lower frame 33 when directed to the housing portion 30, or may be connected to another PCB or device that may provide information regarding the residual capacity value battery pack 38.

Thus, information regarding the residual value of the battery capacity of the battery pack 38 and the electric power that is transmitted in the connected state of the display cable 452 is transmitted to the display 45, and therefore, the operating information of the battery pack 38 can be transmitted to the user.

Of course, a connector 452b can also be provided at the end of the display cable 452 with the ability to easily connect to the target.

FIG. 38 is a perspective view of a dust collector. In addition, FIG. 39 is an exploded perspective view of a dust collector.

As illustrated in the drawings, the dust collector 50 serves to separate and store dust in the air introduced through the suction unit 20, and the suction air can be filtered, in turn, through the first cyclone collector 54 and the second cyclone collector 55, which separate the dust from air in a cyclonic manner, then can be discharged through the exhaust port 512 and can be introduced into the housing portion 30.

The dust collector 50 may include a transparent casing 53, which is generally cylindrical, a top cover 51 that opens and closes the open upper end of the transparent casing 53, and a lower cover 52 that opens and closes the open lower end of the transparent casing 53. In addition, the first cyclone trap 54, the second cyclone trap 55, the inner casing 544, the dust compression unit 56, the guide unit 543, etc. can be placed in a transparent casing 53.

More specifically, the top cover 51 forms the appearance of the upper surface of the dust collector 50 and is formed to be protected by the cover member 40 when installed in the housing portion 30. In addition, the suction port 511 is formed in front of the dust collector 50. The suction port 511 is formed to communicate with the fitting 401 while the lid member 40 is closed, so that air containing dust that is sucked through the suction unit 20 is introduced into the dust collector 50 .

Furthermore, although not illustrated in detail, a passage guide 518 is provided inside the top cover 51 so that air introduced through the suction port 511 is guided along its outer circumference and flows downward along the inner surface of the transparent casing 53. At this point, leaking air may be released in one direction along the inner surface of the transparent casing 53 by means of the upper cover 51 and can rotate along the circumference of the transparent casing 53 when rotated in a spiral.

An exhaust port 512 is formed behind the top cover 51, which faces the suction port 511. The exhaust port 512 is an exhaust port through which air from which dust is filtered when passing through the first cyclone trap 54 and the second cyclone trap 55 inside the dust collector 50 is discharged outside the dust collector 50. Air in the dust collector 50 may be directed to the exhaust port 512 by the passage guide 518 provided inside the top cover 52. In addition, the exhaust port 512 may contact the outlet TIFA 361a prefilter 36 and filter assembly may be incorporated into body portion 30 through the opening 361a of the filter.

Meanwhile, a dust collector handle 513, which can be removed upward, can be provided on the upper surface of the top cover 52. The dust collector handle 513 may include a handle portion 513a that extends laterally with the possibility of gripping by the user, and a side extension portion 513b that extends vertically from each of both ends of the handle portion 513a. The lateral extension portion 513b may be inserted inside the top cover 52. At this point, the handle portion 513a may be in direct contact with the upper surface of the top cover 52. While the dust collector 50 is being installed, the dust collector handle 513 is maintained in its inserted state due to its own weight, and not interferes with the lid member 40 when the lid member 40 opens and closes.

In addition, a cap insertion portion 514, which extends downwardly along the circumference of the upper cap 51, is formed at the lower end of the upper cap 52, and an upper gasket 515 is provided in the upper cap insertion portion 514 to seal the transparent casing 53 while the upper casing 53 the cover 51 is installed in the transparent casing 53. In addition, the upper cover 51 is maintained in an attached state relative to the transparent casing 53 by the upper locking element 57, which is described below.

The bottom cover 52 may be shaped to protect the open bottom surface of the transparent cover 53. The lower gasket 523 is provided in the circumference of the lower cover 52 so that it is in direct contact with the transparent cover 53 while the lower cover 52 is closed, by virtue this providing a seal between the transparent casing 53 and the bottom cover 52.

In addition, a gear gear 59 may be provided in the center of the bottom cover 52. A gear gear 59 connects the compression motor unit 323 to the dust compression unit 56 and transmits power so that the dust compression unit 56 is driven by driving the compression motor unit 323.

One side of the lower cover 52 can be attached via shafts to the lower end of the transparent casing 53, and therefore, the lower cover 52 can be opened and closed by rotation to remove dust. In addition, the bottom cover 52 is supported in attached state to the transparent casing 53 by means of a lower locking element 58, which is described below. Therefore, the bottom cover 52 can selectively open and close by the operation of the lower locking element 58.

In addition, the first cyclone trap 54 is formed with the ability to filter dust and foreign substances from the introduced air, as well as provide the possibility of introducing into the air from which the dust and foreign substances are filtered. The first cyclone trap 54 may include a cylindrical screen 541, which has a plurality of openings, and a dust collecting filter 542, which is provided outside or inside the screen 541.

Therefore, the air introduced along the transparent casing 53 can be filtered by the filter unit 39, and the filtered air can be introduced into the sieve 541, then can fall down, can pass through the guide unit 543, and can be stored in the first dust collecting space 501 formed in the lower portion of the dust collector 50. Meanwhile, fine dust that is not filtered by the filter unit 39 can pass through the filter unit 39 and can be introduced into the second cyclone collector 55 with the possibility of separation in it.

The second cyclone trap 55 may include a plurality of housings 551 that are housed inside a sieve 541 and have a conical shape that becomes narrower downward. The upper end and lower end of each of the shrouds 551 can be opened so that the fine dust is separated and discharged downward while the intake air rotates inside the shroud 551 and the air from which the fine dust is released flows upward. Fine dust separated by a casing 551 may be stored in a second dust collecting space 502, which is separated from the first dust collecting space 501.

An inlet port 551a through which air is introduced can be formed in the upper portion of the casing 551. In addition, a guide vane 552 having a spiral shape along the inner circumference of the casing 551 is provided in the inlet port 551a to form a rotating stream of introduced air.

A vortex flow unit 553 in which an exhaust port 553a for discharging air separated from fine dust in the casing 551 is formed is provided in an upper portion of the casing 551. A vortex flow unit 553 protects the open upper surface of the casing 551, and the outlet port 553a can located in the center of the casing 551. In addition, a cyclone trap cover 554 is provided that forms the upper surface of the second cyclone trap 55. The cyclone trap cover 554 is configured to communicate with exhaust with the mouths 553a of the plurality of blocks 553 to form a vortex flow. The vortex flow unit 553 and the cyclone trap cover 554 can be integrally formed, and the guide vane 552 can also be integrally formed with the vortex flow unit 553. In addition, the cover 554 of the cyclone trap can be attached and attached to the top cover 51 or can be attached to the upper end of the transparent casing 53.

Air that is discharged upward through the outlet port 553a of the vortex flow unit 553 can flow through the top cover 52, can flow along the interior for the housing part 30 through the exhaust port 512, and then can be discharged outside the housing part 30 through the back cover 314.

The inner casing 544 may support a first cyclone trap 54 and a second cyclone trap 55, and may also separate a first dust collecting space 501 and a second dust collecting space 502. The inner casing 544 may have a cylindrical shape, the upper surface and the lower surface of which is open, and the diameter of the lower portion may be formed smaller than the diameter of the upper portion. Therefore, the space between the inner casing 544 and the transparent casing 53 can be defined as a first dust collecting space 501 that stores dust separated by the first cyclone trap 54, and the space in the inner casing 544 can be defined as a second dust collecting space 502, in which stores dust separated by a second cyclone trap 55.

The upper portion of the inner casing 544 is formed so that its diameter becomes narrower downward, and also formed with the ability to accommodate the lower portion of the casing 551. In addition, a guide block 543 can be provided in the upper portion of the inner casing 544.

The guide unit 543 serves to allow downward movement of the air separated from the dust by the first cyclone trap 54, while rotating in a spiral, and may include a guide base 543a, which is installed outside the inner casing 544, and a blade 543b, which protrudes from the guide base 543a.

The guide base 543a may be cylindrical and may be located outside the inner casing 544. The guide base 543a may be coupled to the inner casing 544 or may be integral with the inner casing 544. In addition, the guide base 543a may be mounted outside the inner casing 544 so that it is spinning. In addition, the guide base 543a may be integrally formed with the dust compression unit 56.

The blade 543b can be formed along the circumference of the outer surface of the base 31 and can be formed with the possibility of being inclined so that the direction of flow of dust and air is forcibly set in a spiral. At this point, the plurality of blades 543b may be positioned such that adjacent blades 543b at least partially overlap each other when viewed from the upper side, and dust and air may flow downward through a passage formed between adjacent blades 543b.

Dust directed through the blade 543b may pass through the blade 543b and then may be stored in the first dust collecting space 501. In addition, the dust stored in the first dust collecting space 501 may not flow back in the opposite direction, but may remain in the first dust collecting space 501 due to the design of the blades 543b, which are formed so that they are oblique and arranged so that they vertically overlap.

In particular, the counterflow prevention portion 531 is formed on the inner surface of the transparent casing 53 corresponding to the region of the blade 543b. The counterflow prevention portion 531 may be located along the inner circumference of the transparent casing 53 at a predetermined interval. The counterflow prevention portion 531 may be in the form of a rib that extends in the direction that the vane 543b crosses.

Therefore, a portion of the dust that flows back into the first dust collecting space 501 collides with the counterflow prevention portion 531 during the process in which the blade 543b rotates. Therefore, the dust does not pass through the blade 543b, falls down again and then initially contracts. Thus, the portion of the dust that flows up continuously and repeatedly falls down by means of the blade 543b and the backflow prevention portion 531 and then is compressed in collision with other dust.

A dust compression unit 56 is provided in the lower portion of the inner casing 544 and is configured to compress the dust stored in the first dust collecting space 501 by rotation, thereby reducing the amount of dust.

In particular, the dust compression unit 56 may include a rotating portion 561 and a pressing portion 562. The rotating portion 561 has a cylindrical shape and is mounted outside the inner casing 544. The rotating section 561 can independently rotate according to a state of attachment to the inner casing 544 and can be formed rotatably along with the inner casing 544. Of course, the rotating portion 561 can also rotate along with the guide block 543 when attached to the guide block 543.

The pressing portion 562 may be configured to intersect the first dust collecting space 501 from one side of the rotating portion 561 to the inner surface of the transparent casing 53. The pressing portion 562 may have a plate shape corresponding to the cross section of the first dust collecting space 501, and may separate the inner part of the first dust collecting space 501. An inner wall (not shown) that extends inwardly with the possibility of overlapping with the pressing portion 562 may be formed in the first dust collecting space 501. The dust stored in the first dust collecting space 501 can be compressed between the pressing portion 562 and the inner wall by normal and reverse rotation of the pressing portion 562. Thus, the dust stored in the first dust collecting space 501 is again compressed by rotating the pressing portion 562 .

A plurality of vents 562a may be formed in the pressing portion 562 to resolve the air resistance that may be formed when the pressing portion 562 rotates, as well as to resolve the pressure imbalance between the spaces separated by the pressing portion 562. In addition, a decorative element 563, which in contact with the inner surface of the transparent casing 53, can be installed on the extending end of the pressing portion 562. The decorative element 563 may have a quadrangular shape, which on walks in surface contact with the transparent casing 53, and can be protected between the pressing portion 562 and the transparent casing 53. In addition, the decorative element 563 may be formed of wear-resistant material and may be formed of lubricant to allow smooth rotation of the pressing portion 562.

Meanwhile, one pair of support ribs 532 may be formed on the outer surface of the transparent casing 53. Support ribs 532 may be formed so as to extend from the upper end of the transparent casing 53 to its lower end. In addition, the supporting ribs 532 are in contact with both of the left and right side ends of the open front surface of the housing portion 30 when the dust collector 50 is installed, and direct the precise installation of the dust collector 50.

FIG. 40 is an exploded perspective view illustrating an attachment structure of an upper cover and a lower dust collector cover when viewed from one side. In addition, FIG. 41 is a cross-sectional view illustrating a state in which the top cover is open. In addition, FIG. 42 is an exploded perspective view illustrating an attachment structure of an upper cover and a lower dust collector cover when viewed from the other side. In addition, FIG. 43 is a cross-sectional view illustrating a state in which the bottom cover is open.

As illustrated in the drawings, the upper cover 51 and the lower cover 52 can respectively be mounted on the upper end and lower end of the transparent casing 53 to protect the transparent casing 53.

The top cover 51 can be supported in a limited state to the transparent casing 53 by the upper locking member 57. In addition, when it is necessary to disassemble and clean or maintain the internal elements of the dust collector 50, the upper cover 51 can be separated from the transparent casing 53 by the operation of the upper locking member 57.

The upper locking element 57 may be installed in the portion 533 for mounting the upper locking element formed on the upper end of the transparent casing 53. At this point, the rotation shaft 571 of the locking element, which protrudes laterally from each of both side surfaces of the upper locking element 57, can be inserted and installed in the hole 533a for the locking element of the section 533 for installing the upper locking element, and therefore, the upper locking element 57 can operate with rotation.

In addition, a locking element spring 572 may be provided between the upper locking element portion 533 and the upper locking element 57 under the locking element rotary shaft 571, and the lower portion of the upper locking element 57 may be resiliently supported by the spring mounting portion 573 and the spring guide 533b .

The upper locking element 57 may extend beyond the upper end of the transparent casing 53, and a hook portion 574 that projects in a hook shape may be formed at its elongated end. The hook portion 574 may be inserted into the bounding portion 516 of the hook of the top cover 51 so that they are caught and limited relative to each other while the top cover 51 is installed.

The upper protrusion 517 may be formed on one side of the upper cover 51, which faces the bounding portion 516 of the hook, and the upper groove 534 into which the upper protrusion 517 is inserted, respectively, is formed on the upper end of the inner surface of the transparent casing 53.

Therefore, while the top cover 51 is installed, one end of the top cover 51 is secured by attachment between the upper protrusion 517 and the upper groove 534, and the other end of the top cover 51 is secured by the upper locking member 57, and therefore, the top cover 51 can maintained in the installed state. Furthermore, in order to separate the upper cover 52, the restriction of one end of the upper cover 51 is stopped by controlling the upper locking member 57, and then the upper protrusion 517 and the upper groove 534 are separated from each other.

The lower cover 52 can be kept closed by the lower locking member 58 and the first dust collecting space 501, and the second dust collecting space 502 can be opened by opening the lower cover 52, and therefore dust in the first dust collecting space 501 and the second dust collecting space 502 may be removed.

The lower cover shaft 521 is formed at one end of the lower cover 52. The lower cover shaft 521 is rotatably attached to a lower cover portion 535 formed on the lower end of the transparent casing 53. Accordingly, when the lower cover 52 is opened and closed, the lower cover 52 rotates around the axis of the bottom cover 52.

In addition, a lower locking member 58 is provided at the other end of the transparent casing 53 corresponding to the lower cover portion 535. The lower locking element 58 can be mounted so that it is sliding vertically, and therefore, the lower cover 52 can be selectively limited.

In particular, the lower locking element mounting portion 536 is formed at the lower end of the transparent casing 53, which faces the upper locking element 533 for mounting. The lower locking element mounting portion 536 may be configured with one pair of protruding ribs, and a locking slot 536a for the locking element, which extends vertically, is formed therein.

A catching portion 537 of the casing is formed between the protruding ribs of the portion 536 for mounting the lower locking member. The catching portion 537 of the casing protrudes from the lower end of the transparent casing 53, and the lower hook 522 of the lower cover 52 can be caught and limited while the lower cover 52 is closed.

In addition, the lower locking element 58 is configured to be recessed so that a portion 536 for mounting the lower locking element is placed therein, and a protrusion 581 of the locking element that projects inwardly is formed on each of both sides of the inner surface of the lower locking element 58 and inserted into the slot 536a for the locking element. Therefore, the lower locking element 58 can be installed so that it is vertically movable when installed in the plot 536 for installing the lower locking element.

In addition, a pressure portion 582 that extends downward may be formed in the recessed interior of the lower locking member 58. The pressure portion 582 contacts the lower hook 522 formed in the lower cover 52 and is formed with an inclined surface 582a. When the lower locking member 58 moves down, the pressure portion 582 pushes the lower hook 522 so that the lower hook 522 is separated from the catch portion 537 of the casing, and thereby the lower cover 52 is opened.

The inclined surface 522a may be formed at the upper end of the lower hook 522. While the lower cover 52 is closed, the inclined surface 522a of the lower hook 522 is in contact with the inclined surface 582a of the pressure portion 582. In this state, when the lower locking member 58 is moved downward, the pressure portion 582 presses the inclined surface 522a of the lower hook 522, and therefore, the lower hook 522 is elastically deformed. Therefore, due to the elastic deformation of the lower hook 522, the lower hook 522 can be released from the catching portion 537 of the casing.

FIG. 44 is an exploded perspective view illustrating an attachment structure of a bottom cover and a dust compression unit. In addition, FIG. 45 is an enlarged view of the B region of FIG. 41.

As illustrated in the drawings, a bearing 593 may be mounted in the center of the bottom cover 52. In addition, a first gear gear 591 may be provided on the lower surface of the bottom cover 52. The first gear gear 591 may be coupled to the compression motor assembly 323 so that it rotates. When the dust collector 50 is mounted in the socket portion 32, the first gear gear 59 naturally connects to the compression motor unit 323 so that it is rotatable.

The rotational shaft 591a of the first gear gear 591 can be mounted so that it passes through the bearing 593, and can smoothly rotate by means of the bearing 593. In addition, the second gear gear 592 is located on the upper surface of the lower cover 52 and is configured to connect to the rotational shaft 591a of the first the transmission gear 591 by means of a bearing 593. Accordingly, the second transmission gear 592 can rotate along with the first transmission gear 591.

The second gear gear 592 has a circular plate shape, and a plurality of gear portions 592a are formed along its circumference. A plurality of gear portions 592a may be attached to the protrusion protrusion 561a by gears formed in the inner peripheral surface of the rotating portion 561 of the dust compression unit 56.

Thus, in the assembly operation of the dust collector 50, when the bottom cover 52 is closed while the dust compression unit 56 is being installed, the gear portion 592a of the second transmission gear 592 is matched with the protrusion 561a for connecting by the gears of the dust compression unit 56, and therefore the unit 56 dust compression can be driven.

Meanwhile, the coupling sleeve 592b may be formed in the center of the upper surface of the second gear gear 592, and the socket groove 592c into which the spacer plate 594 is mounted may be formed outside the coupling sleeve 592b.

In addition, a gasket mounting protrusion 592d is formed on the lower surface of the second transmission gear 592. A transmission gear gasket 597 is installed in the gasket protrusion 592d. The gear pinion gasket 597 can be sealed by contacting the inner peripheral surface of the rotating portion 561. At this point, the gear pinion gasket 597 is connected integrally to the second gear gear 592 and rotates with it when the second gear gear 592 rotates.

The gasket plate 594 has a circular plate shape, and the inner gasket 595, which protects the open bottom surface of the inner casing 544, is installed therein. The inner gasket 595 may be integral with the gasket mounting portions 594a and 594b formed at the upper end of the gasket plate 594. The inner gasket 595 may have a shape corresponding to the opening of the inner casing 544.

The inner gasket 595 may include a first sealed portion 595a that has a circular plate shape so that it contacts the open lower end of the inner casing 544, and a second sealed portion 595b that is provided above the first sealed portion 595a and is inserted inside the inner casing 544 so that it contacts the inner surface of the inner casing 544, and can seal the opening of the inner casing 544 in a fixed state.

The gasket mounting portions 594a and 594b include a first protruding portion 594a that protrudes upward from the upper surface of the spacer plate 594, and a second protruding portion 594b that protrudes vertically outward from the first protruding portion 594a. Both the first protruding portion 594a and the second protruding portion 594b are inserted into the lower surface of the inner gasket 595 and can tightly attach the inner gasket 595 to the gasket plate 594.

Meanwhile, the nesting rib 594c, which is inserted into the nesting groove 592c, can be formed on the lower surface of the spacer plate 594. The nesting rib 594c is formed to be movable when inserted into the nesting groove 592c.

In addition, a shaft mount hole 594d in which the shaft mount member 596 is mounted to attach the spacer plate 594 to the second gear gear 592 is formed in the center of the gasket plate 594. The shaft mount member 596 can be attached through the shaft hole 594d by means of shafts and a sleeve 592b for attaching a second gear gear 592.

At this point, the coupling sleeve 592b is formed above the gasket plate 594, and therefore, the shaft connecting member 596 does not press the gasket plate 594. Therefore, the gasket plate 594 can be mounted so that it rotates freely even when attached to the second transmission gear 592.

Thus, when the compression motor assembly 323 is driven while the dust collector 50 is being installed, the first gear gear 591 and the second gear gear 592 are rotated, and the rotating portion 561, which is connected by gears to the second gear gear 592, also rotates, and by virtue of this, the dust compression unit 56 can be driven.

At this point, since the cushioning plate 594 that engages in the second gear gear 592 is attached so that it rotates freely above the second gear gear 592, a stopped state can be maintained even when the second gear gear 592 rotates. Therefore, the inner gasket 595 installed in the gasket plate 594 can be supported in a shielded state of the lower surface of the inner casing 544, i.e. a second dust collecting space 502.

Later in this document, when the main electric motor is driven, the flow of dust and air in a vacuum cleaner is described.

FIG. 46 is a cross-sectional view illustrating the flow of air and dust in the body 10 of the vacuum cleaner. In addition, FIG. 47 is a plan view illustrating the flow of air and dust in the cleaner body 10.

As illustrated in the drawings, when a user controls a vacuum cleaner 1, the driving of the main motor 35 starts, and air containing dust can be sucked through the suction unit 20 by the suction force that is generated by the main electric motor 35.

Air containing dust can be sucked through the nozzle 401 of the vacuum cleaner body 10 and then can be sucked into the dust collector 50 through the suction port 511 of the dust collector 50. In addition, in the dust collector 50, dust and fine dust are separated by a first cyclone collector 54 and a second cyclone collector 55 and then captured in a first dust collecting space 501 and a second dust collecting space 502, respectively.

In particular, air containing dust introduced through the suction port 511 is introduced between the dust collector 50 and the screen 541 through the passage guide 518. At this point, air and dust introduced by the passage guide 518 flow during rotation along the inner wall of the dust collector 50.

While the leaking dust and air pass through the dust collecting filter 542 and the sieve 541, the dust can be primarily filtered and the filtered air can be introduced into the space inside the sieve 541. In addition, the separated dust falls down, passes through the guide unit 543 and then stored in a first dust collecting space 501. The dust captured in the first dust collecting space 501 can be compressed twice by the dust compression unit 56, the guide unit 543 and the counterflow prevention section 531, and then can be stored in the first dust collecting space 501.

Meanwhile, the air filtered through the dust collecting filter 542 and the screen 541 is introduced into the casing 551 through the inlet port 551a of the casing 551. At this point, the air introduced into the casing 551 by means of a guide vane 552 located on the inlet port 551a, forms a vortex flow along the inner wall of the casing 551.

In this process, fine dust and air are separated, and fine dust is secondly filtered. Fine dust separated in the casing 551 may fall down through the open lower surface of the casing 551 and may be stored in the second dust collecting space 402. In addition, filtered air flows upward through the outlet port 553a of the block 553 to form a vortex flow and then flows outside the dust collector 50 through the outlet port 512.

Fine dust in the air discharged through the exhaust port 512 can be filtered a second time while the air passes through the pre-filter assembly 36. In addition, air passing through the pre-filter assembly 36 flows into the inner space of the upper frame 34 and passes through the main electric motor 35. Air passing through the main electric motor 35 flows down through the plate hole 341a and passes through the filter unit 39 mounted in the lower frame 33.

While air passes through the filter unit 39, the ultrafine dust contained in the air can be separated. Ultimately, ultrafine dust can also be filtered out three times. Most of the filtered air is used to cool the battery unit 38 under the filter unit 39, and then is discharged back through the back cover 314.

In addition, part of the air passing through the filter unit 39 passes through the opening 331a of the first partition. In this process, the noise filter 302 and the main PCB 301 are cooled. Air that cools the noise filter 302 and the main PCB 301 can naturally be discharged from the interior for the housing part 30 or can be discharged through the back cover 314.

Meanwhile, in order to empty the dust container 50 after using the vacuum cleaner 1, firstly, the pressing member 81 is pressed to control the locking assembly 80, and the lid member 40 is opened. When the lid member 40 is fully open, the lid member 40 is held open by the link assembly 90.

In this state, the dust collector 50 is separated from the housing portion 30, and then the lower cover 52 can be opened by controlling the lower locking member 58. When the lower cover 52 is open, all the dust in the first dust collecting space 501 and the second dust collecting space 502 may retire. In addition, for cleaning and checking the dust collector 50, the top cover 51 can also be opened by controlling the upper locking element 57, and therefore, the internal elements of the dust collector 50 can be separated and then cleaned and checked.

After the dust collector 50 is emptied, the dust collector 50 is installed again in the housing portion 30, and then the lid member 40 is closed by rotation of the lid member 40.

Meanwhile, when the vacuum cleaner 1 is used, the user moves while gripping the handle 23. In this process, the movement of the cleaner body 10 can be controlled.

FIG. 48 is a view illustrating the stopped state of the cleaner body 10.

As illustrated in the drawing, while the vacuum cleaner body 10 is not moving and in a stopped state, the center of gravity G of the vacuum cleaner body 10 is located on the rear side further than the rotation center C of the conveyor wheel 60.

In this state, the cleaner body 10 is provided to rotate clockwise (in the normal direction) with respect to the rotation center C of the conveyor wheel 60, and the second half portion 313 of the base 31 is lowered and the first half portion 312 rises.

At this point, the rear wheel unit 70, which is in contact with the ground, prevents excessive lowering of the second half portion 313 of the base 31, resiliently supports the base 31, and makes it possible to maintain the vacuum cleaner body 10 in a stable state.

Thus, both the transport wheel 60 and the rear wheel unit 70 are in contact with the ground, and the cleaner body 10 is supported by a three-point support. In addition, the rear of the vacuum cleaner body 10, in which the center of gravity is located, is in the lowered state, and therefore, the vacuum cleaner body 10 can maintain a stable stopped position.

Therefore, the first half portion of the cleaner body 10 can be maintained at a predetermined angle α, regardless of the presence or absence of dust in the dust collector 50 or the amount of dust. In this state, the detection part 306 can determine the position of the cleaner body 10 through its angle.

Thus, the detection part 306 confirms that the first half portion 312 is supported at a predetermined angle α, determines that the cleaner body 10 does not move and is maintained in a stopped state, and thereby makes it possible to not operate and maintain the wheeled electric motor 632.

FIG. 49 is a view illustrating a state of movement of the cleaner body 10.

As illustrated in the drawing, when the user moves forward while gripping the handle 23 to perform a cleaning operation, the suction hose 24 connected to the handle 23 is tensioned. In addition, since the fitting 401 connected to the suction hose 24 is located in the cap member 40, a force is applied to a place above the rotation center C of the conveyor wheel 60. Accordingly, the cleaner body 10 rotates counterclockwise (in the opposite direction) by a torque relative to the center C rotation of the transport wheel 60.

The angle β between the first half portion 312 and the ground may vary according to the absolute value of the force applied to the fitting 401, but less than a predetermined angle α in the stopped state of the vacuum cleaner body 10. Furthermore, even when the force exerted on the fitting 401 becomes larger, the first half portion 312 is not in direct contact with the ground due to the front wheel 312a, and the front wheel 312a is in contact with the ground, and the vacuum cleaner 1 can stably move.

For example, while the vacuum cleaner body 10 is stably moving, the central portion 311 is in a horizontal position relative to the ground. Furthermore, due to counterclockwise movement of the cleaner body 10, the first half portion 312 forms an angle of 20 ° relative to the ground, and the second half portion 313 forms an angle of 10 °. In this state, the cleaner body 10 can move perfectly. However, the angle of the body 10 of the vacuum cleaner may vary according to the instantaneous tension of the user or the state of the earth.

The detection part 306 detects the position of the vacuum cleaner body 10 and determines the rotation of the conveyor wheel 60. When the angle β between the first half portion 312 and the earth is less than a predetermined angle α, the detection part 306 drives the wheel electric motor 632 and rotates the conveyor wheel 60 counterclockwise. Due to the rotation of the conveyor wheel 60, the cleaner body 10 can move forward.

At this point, the detection part 306 can immediately drive the wheel electric motor 632 at a time when the detected angle becomes less than the predetermined angle α. If necessary, the wheel electric motor 632 may be actuated when the change value detected by the detection part 306 exceeds a predetermined range (e.g., 1-2 °).

Meanwhile, since the detection part 306 can detect a change in the angle β between the first half portion 312 and the ground, the rotational speed of the wheel motor assembly 63 can be controlled in proportion to the change in the angle. For example, when the angle β between the first half portion 312 and the ground becomes sharply smaller, the rotational speed of the wheel electric motor 632 also becomes larger, and therefore, the vacuum cleaner body 10 can move forward at high speed. Furthermore, when the angle β between the first half portion 312 and the ground becomes smaller relatively slowly, the rotational speed of the wheel electric motor 632 may become relatively smaller.

When the distance from the user becomes closer due to the forward movement of the cleaner body 10, the force exerted on the nozzle 401 may become smaller or may be eliminated. When the force exerted on the nozzle 401 is eliminated, the cleaner body 10 rotates clockwise with respect to the rotation center of the conveyor wheel 60 and is in the state illustrated in FIG. 46. At this point, the detection part 306 can confirm that the angle between the first half portion 312 and the ground is a predetermined angle α, and therefore can stop the driving of the wheel motor assembly 63.

Therefore, when the user moves while gripping the handle 23 to use the vacuum cleaner 1, a force is applied to the fitting 401, and the cleaner body 10 is moved forward. In addition, when the cleaner body 10 moves forward and the distance from the user becomes closer, the force exerted on the fitting 401 becomes weaker. When the force exerted on the nozzle 401 becomes weaker, the vacuum cleaner body 10 stops rotating clockwise due to the center of gravity.

Meanwhile, in the state in which the vacuum cleaner 1 moves when the angle between the bottom surface of the dust collector 50 or the first half portion 312 and the ground (floor surface) is less than a predetermined angle (α <predetermined angle <β), driving the wheel motor assembly 63 may slow down. Thus, a predetermined speed is maintained up to a predetermined angle, and its deceleration begins when the detected angle reaches the predetermined angle, and the wheel motor assembly 63 stops when the detected angle makes up the predetermined angle. Of course, the determination of the angle can be achieved with respect to the central portion 311 and the second half portion 313 rather than the first half portion 312.

When such a process is repeated, the vacuum cleaner body 10 follows the user according to the movement of the user, and therefore, although the user does not perform a separate operation to move the vacuum cleaner body 10, autonomous movement can be achieved.

Since the first half portion 312 is formed with the possibility of being inclined, the cleaner body 10 can efficiently move along the door threshold or obstacle when the door threshold or obstacle is located at the front when moving. Thus, even in a situation in which an obstacle is formed, the cleaner body 10 can move stably and can continuously move along the obstacle.

In addition, when it is necessary to move over a high obstacle, or the user lifts the handle 23, the cleaner body 10 rotates clockwise relative to the center of the transport wheel 60, and therefore, the second half portion 313 can move to the ground. At this point, the rear wheel unit 70 is in a state of contact with the ground and can prevent excessive lowering or tipping of the second half section 313. In addition, the rear wheel block 70 resiliently supports the second half section 313 so that the cleaner body 10 is in the state illustrated in FIG. 46, when an external force is removed from the cleaner body 10.

Meanwhile, the cleaner body 10 can detect an obstacle O when moving. When an obstacle O is detected, the cleaner body 10 can move while avoiding the obstacle by controlling the actuation of the transport wheel 60.

FIG. 50 is a view illustrating a state of movement with obstruction of a vacuum cleaner body.

As illustrated in the drawing, when the vacuum cleaner body moves or starts moving from a stopped state, an obstacle O can be detected by the obstacle detection element 44. A plurality of obstacle detection elements 44 are provided on the front surface of the lid element 40 having a curved surface shape. After the obstacle detection element 44 detects an obstacle O located within a predetermined angle range, obstacle avoidance movement is performed.

For example, as illustrated, when an obstacle O is detected by the front sensor 44c of the obstacle detection element 44 while the vacuum cleaner body 10 is moving, the location of the obstacle O is calculated by the main detection PCB 301 or detection PCB 360a.

In addition, when the position of the obstacle O is calculated, the main PCB 301 can allow one of the transport wheels 60 located on the left and right sides, which is closer to the obstacle O, to rotate faster, thereby changing the direction of movement of the cleaner body 10 to avoid the obstacle O .

At this point, the main PCB 301 can drive only one of the wheel electric motors 632 located on both sides, and can also avoid the obstacle O by distinguishing between the rotational speeds of each of the wheel electric motors 632 relative to each other or by distinguishing their direction of rotation.

In addition, the rotational speed of each of the wheel electric motors 632 may be delayed according to the distance from the obstacle detected by the obstacle detection element 44. Thus, when the obstacle O is detected from a large distance, the speed of the wheel electric motors 632 can become relatively smaller, and when the obstacle O is detected from a small distance, the speed of the wheel electric motors 632 can become relatively larger.

As described above, even when a separate operation for avoiding the obstacle O is not performed, it is possible to move while actively avoiding the obstacle O by the obstacle detection element 44.

In an embodiment of the present invention, the direct movement of the cleaner body 10 is described. However, since the second half portion 313 also has an inclined state, the cleaner body 10 can automatically move backward according to a change in the angle of the second half portion 313.

FIG. 51 is a view illustrating a detection range of an obstacle detection element.

As illustrated in the drawing, the obstacle detection element 44 detects an obstacle located within a predetermined detection distance L. For example, the obstacle detection element 44 may have a detection distance of approximately 650 mm.

At this point, the detection distance L of the obstacle detection element 44 may be set equal to the distance at which the ground is not detected when the vacuum cleaner body 10 rotates counterclockwise and the front wheel 312a is in contact with the ground.

When the detection distance L is too large, there is a problem that the ground can be recognized as an obstacle when the first half portion 312 of the cleaner body 10 rotates counterclockwise. In contrast, when the detection distance L is too small, the avoidance movement must be performed very quickly after the obstacle located in front of the vacuum cleaner body 10 is detected, and therefore user inconvenience can occur, and even when the avoidance movement performed, the obstacle cannot be avoided completely.

Therefore, the obstacle detection element 44 may have a predetermined distance L at which ground is not detected when the vacuum cleaner body 10 rotates, and movement can be performed while effectively avoiding the obstacle.

Meanwhile, since the obstacle detection element 44 is located on the front surface of the cover element 40, which is the uppermost end of the vacuum cleaner body 10, the emission angle of the obstacle detection element 44 can be set so that the ground cannot be detected even when the angle of the vacuum cleaner body 10 changes, and an obstacle can be effectively detected.

For example, when an obstacle detection element 44 is provided on the bottom surface of the vacuum cleaner body 10 or in a low position, the light emitted from the obstacle detection element 44 cannot assist towards the ground, and a detection error may be generated due to the detection of the earth. In particular, due to the characteristics of the vacuum cleaner body 10 that rotates, it is important to select a position in which an obstacle is different while the ground is not detected.

FIG. 52 is a view illustrating a state of movement along a wall surface of a cleaner body 10.

As illustrated in the drawing, the cleaner body 10 can move along the surface of a wall of a room or furniture to perform a cleaning operation. When the vacuum cleaner body 10 moves along the wall surface, the vacuum cleaner body 10 must recognize the wall surface, move along the wall surface without avoiding the wall surface, and then rotate after it has completely left the corner.

To this end, the obstacle detection element 44 may be set so that the front sensors 44b and 44c and the side sensors 44a and 44d have different detection distances L1 and L2 relative to each other. The detection distance L1 of the front sensors 44b and 44c can be set greater than the detection distance L2 of the side sensors 44a and 44d. For example, when each of the front sensors 44b and 44c has a detection distance L1 of approximately 650 mm, each of the side sensors 44a and 44d may be configured to have a detection distance L2 of approximately 300 mm.

When the detection distance L2 of each of the side sensors 44a and 44d is identical or greater than the detection distance L1 of each of the front sensors 44b and 44c, the wall surface is too distant due to the detection distance L2 of each of the side sensors 44a and 44d, and the front sensors 44b and 44c are not can detect the surface of the wall. Ultimately, a situation arises in which all of the front sensors 44b and 44c and the side sensors 44a and 44d cannot be detected, and therefore the surface of the wall cannot be detected. Therefore, when the detection distance L2 of each of the side sensors 44a and 44d is smaller, so that the vacuum cleaner body 10 is closer to the wall surface, the front sensors 44b and 44c and the side sensors 44a and 44d can simultaneously recognize the wall surface.

Meanwhile, when the front sensors 44b and 44c and the side sensors 44a and 44d simultaneously recognize the obstacle while the vacuum cleaner body 10 is moving, the obstacle can be considered as a wall surface, and therefore, the vacuum cleaner body 10 can move along the wall surface without moving with avoidance. Thus, the movement is performed while maintaining a state in which the front sensors 44b and 44c and the side sensors 44a and 44d detect a wall surface.

When the vacuum cleaner body 10 continuously moves along the wall surface, and then the absence of an obstacle is detected by the front sensors 44b and 44c, and the absence of an obstacle is also detected by the side sensors 44a and 44d, it is determined that the vacuum cleaner body 10 passes the corner of the wall surface and the housing 10 The vacuum cleaner can move in the direction of the angle.

At this point, after the absence of an obstacle is also detected by the side sensors 44a and 44d, the cleaner body 10 can further move forward a predetermined distance and then rotate. Thus, the housing 10 of the vacuum cleaner can rotate after completely passing past the corner, and therefore, collision of the rear portion of the housing 10 of the vacuum cleaner with the wall surface can be prevented.

The present invention may have various other embodiments in addition to the above embodiment.

The remaining configuration of another embodiment of the present invention, with the exception of a part thereof, is identical to the configuration of the above embodiment, and similar terms mean similar or corresponding elements, and a re-description thereof is omitted.

FIG. 53 is a view illustrating a state in which a part of the body for the body of the vacuum cleaner according to another embodiment of the present invention is tilted forward. In addition, FIG. 54 is a view illustrating a state in which a portion of the body is inclined backward. In addition, FIG. 55 is a view illustrating a configuration of a support portion according to another embodiment of the present invention.

Referring to FIG. 53-55, the vacuum cleaner housing 1000 includes a housing portion 1110, a transport wheel 1120, and a battery 1130.

A dust collector 1105 in which dust is sucked in through the suction unit 1160 can be provided in a housing part 1110. A pair of conveyor wheels 1120 may be coupled to both sides of the housing portion 1110, respectively. The battery 1130 may be detachably coupled to the housing portion 1110.

A portion of the vacuum cleaner housing 1000 in which the connector 1103 is positioned relative to a straight extension line V passing through the rotation center of the conveyor wheel 1120 can be defined as a front part, and a portion thereof in which a battery 1130 is housed can be defined as a rear part. In addition, the case in which the housing part 1110 rotates forward is a case in which the housing part 1110 rotates counterclockwise in the drawing (referring to FIG. 53), and the case in which the housing part 1110 rotates back is a case , in which part 1110 of the housing rotates clockwise (referring to Fig. 54).

The vacuum cleaner body 1000 may further include a drive portion for driving the transport wheels 1120. In addition, the vacuum cleaner body 1000 can control the actuation of the transportation wheels 1120 by a control part according to detection information of a detection part for detecting movement of the vacuum cleaner body 1000.

When the detection part is in the off state, the transport wheels 1120 cannot be driven. In this case, the body portion 1110 tilts according to the position of the center of gravity. For example, when the center of gravity of the housing portion 1110 is located in front of a straight extension line V passing through the rotation center of the conveyor wheel 1120, the housing portion 1110 leans forward, as illustrated in FIG. 53, and when the center of gravity of the housing portion 1110 is located behind the straight extension line V, the housing portion 1110 tilts backward, as illustrated in FIG. 54.

When the detection part is turned on, the control part can control the actuation of the transport wheels 1120 so that the center of gravity of the housing part 1110 is located on a straight extension line V passing through the rotation center of the transport wheel 1120. In this case, the lower surface B of the housing part 1110 can also be located at a distance from the floor surface G, as illustrated in FIG. 54.

The vacuum cleaner body 1000 may further include a rear wheel unit 1140. The rear wheel unit 1140 may be located rear of the lower surface of the body portion 1110 and may serve to limit the angle at which the housing portion 1110 tilts backward.

The rear wheel unit 1140 may further include an extension portion 1144. The auxiliary wheel 1142 may rotationally couple to one side of the extension portion 1144. The other side of the extension portion 1144 may rotationally couple to the housing portion 1110 via the rotary shaft 1146. In addition, the extension portion 1144 can rotate up or down within the range a-a '.

The rear wheel unit 1140 may further include an elastic member 1150. For example, the elastic member 1150 may be a torsion spring. One end 1152 of the elastic member 1150 may be supported by the housing portion 1110, and its other end 1153 may be supported by the extension portion 1144. The elastic member 1150 may exert an elastic force such that the extension portion 1144 rotates clockwise in the drawing.

When the casing part 1110 is tilted forward to the maximum, the front portion of the lower surface B of the casing part 1110 can contact the floor surface G. Thus, the maximum forward rotation angle of the housing portion 1110 may be limited.

On the other hand, when the housing portion 1110 leans back, the rear wheel unit 1140 may contact the floor surface G. Accordingly, the maximum reverse rotation angle of the housing portion 1110 may be limited. Therefore, it is possible to prevent the tipping of the housing part 1110 forward or backward.

The lower surface B of the housing part 1110 may form a predetermined angle θ with respect to the floor surface G when the housing part 1110 is tilted to the maximum. At this point, the angle θ between the lower surface B of the housing part 1110 and the floor surface G can be approximately 17-20 °.

A cover 1131 may be provided in the battery 1130. While the battery 1130 is installed in the housing portion 1110, the cover 1131 may be accessible from the outside. Therefore, the cover 1131 may be at least part of the appearance of the housing part 1110. In addition, the user can separate or attach the battery 1130 from / to the housing part 1110 without disassembling the housing part 1110.

Further in this document, a process is described in detail in which a battery 1130 is installed or separated to / from a housing part 1110. However, the descriptions below are limited to cases in which the center of gravity of the housing part 1110 is located in front when the battery 1130 is separated from the housing part 1110, and the center of gravity of the housing part 1110 is located at the rear when the battery 1130 is attached to the housing part 1110.

FIG. 56 is a view sequentially illustrating a process in which a battery is attached to a cleaner body.

FIG. 56A is a view illustrating a state in which the battery 1130 is separated from the housing portion 1110, and FIG. 56B is a view illustrating a state in which a battery 1130 is attached to a housing portion 1110, and FIG. 56C is a view illustrating a state in which the housing part 1110 leans back.

A battery attachment portion 1107 to which the battery 1130 is attached is formed in the housing portion 1110. The battery attachment portion 1107 may be formed by recessing the portion for the housing portion 1110.

A battery attachment portion 1107 is formed on the lower side of the housing portion 1110, and therefore, the battery 1130 is attached to the lower side of the housing portion 1110. For example, while the battery 1130 is installed in the housing portion 1110, the center of gravity of the battery 1130 may be located on the lower side beyond the center of rotation of the conveyor wheel 1120.

Therefore, since the center of gravity of the battery 1130 can move downward when the battery 1130 is attached to the housing part 1110, stability when moving the vacuum cleaner case 1000 can be improved.

When the battery 1130 is attached to the lower side of the housing portion 1110, such an advantage is provided that stability is improved when the vacuum cleaner housing 1000 is moved. However, since the battery 1130 must be attached to the lower side of the housing part 1110, it may be inconvenient for the user to attach the battery 1130.

However, while the battery 1130 is detached from the housing part 1110, the center of gravity of the housing part 1110 may be located in front of a straight extension line passing through the center of the transport wheel 1120. Therefore, when the battery 1130 is detached from the housing part 1110, the part 1110 of the housing may be inclined forward relative to the transport wheel 1120.

Since the housing portion 1110 leans forward, the front portion of the lower surface of the housing portion 1110 comes into contact with the floor surface. At this point, the battery connecting portion 1107 is angled upward. Therefore, the user can easily attach the battery 1130.

The battery 1130 can be connected in an oblique direction with respect to the housing portion 1110 by the attachment guide portion provided in the battery attachment portion 1107. In particular, the insertion direction S of the battery 1130 may form an acute angle with respect to each of the straight extension line V and the floor surface. Therefore, when the front portion of the lower surface of the housing portion 1110 is in contact with the floor surface, the insertion direction S of the battery 1130 forms an acute angle with respect to the floor surface.

When the battery 1130 is attached to the housing portion 1110, the center of gravity of the housing portion 1110 may move backward. Thus, while the battery 1130 is attached to the housing portion 1110, the center of gravity of the housing portion 1110 may be located behind a straight extension line passing through the center of the transport wheel 1120.

In other words, when the battery 1130 is attached to the casing part 1110, the casing part 1110 may be inclined backward relative to the transport wheels 1120. At this point, the rear wheel unit 1140 selectively contacts the floor surface. At this point, the lower surface B of the housing part 1110 forms a predetermined angle θ with respect to the floor surface G.

FIG. 57 is a view sequentially illustrating a process in which a battery is separated from a vacuum cleaner body.

In particular, FIG. 57A illustrates the state before the battery 1130 is separated from the housing part 1110, and FIG. 57B illustrates a state in which the battery 1130 is separated from the housing portion 1110.

In order to separate the battery 1130 from the housing part 1110, the user can directly apply force to the housing part 1110 and can tilt the housing part 1110 forward. Then, the user can separate the battery 1130 in a direction opposite to the insertion direction S.

When the battery 1130 is separated from the housing portion 1110, the center of gravity of the housing portion 1110 moves forward again. Therefore, the housing portion 1110 may be supported in a forward inclined state.

As described above, in the vacuum cleaner of the present invention, while the battery 1130 is installed in the housing part 1110, the housing part 1110 can rotate backward, and therefore, the lower surface of the housing part 1110 can be located at a distance from the floor surface. Thus, the housing portion 1110 can be supported by a two-point support by means of transport wheels 1120 when moving. In this case, the vacuum cleaner body 1000 can more easily move over an obstacle, and since the friction during movement acting on the transport wheels 1120 can be reduced, the labor required when the user moves the vacuum cleaner body 1000 can also be reduced.

When the battery 1130 is separated from the housing part 1110, the center of gravity of the housing part 1110 moves forward, and the housing part 1110 rotates forward, and therefore, the battery connecting portion 1107 provided in the rear lower side of the housing part 1110 moves. Accordingly, the user can easily attach the battery 1130 to the portion 1107 to attach the battery.

A vacuum cleaner according to an embodiment of the present invention is distinguished by including a cleaner body; a transport wheel provided in the cleaner body and configured to rotate the cleaner body; a wheeled motor assembly provided in the vacuum cleaner body and configured to rotate the transport wheel; a suction hose configured to connect a dust suction portion to a vacuum cleaner body; the suction unit, in which the suction hose is connected to the cleaner body in a position located at a distance from the center of rotation of the conveyor wheel; a detection part provided inside the cleaner body and configured to detect a slope of the cleaner body; and a PCB configured to drive the wheeled motor assembly when the slope of the vacuum cleaner body detected by the detection part deviates from a predetermined angle, wherein the center of gravity of the vacuum cleaner body is located on the opposite side with respect to the connection position of the suction hose relative to the rotation center of the conveyor wheel.

The vacuum cleaner body may include a base configured to form the bottom of the vacuum cleaner body, and the base may include a first half portion located on the front side farther from the rotation center of the conveyor wheel and formed so that it tilts, thereby having a gradual arrangement on distance from the ground to the front side.

The front wheel, which is selectively in contact with the ground according to the rotation of the vacuum cleaner body, can be mounted in the first half section.

The base may include a second half portion located on the front side further than the center of rotation of the transport wheel and formed so that it is inclined, thereby having a gradual location at a distance from the ground to the front side.

The rear wheel unit, which selectively contacts the ground according to rotation of the vacuum cleaner body, may be mounted in the second half section.

The rear wheel unit may include a leg mounted in the base so that it is rotatable; a rear wheel mounted on the extending end of the leg so that it is rotatable; and an elastic portion configured to extend from one side of the rear wheel so that it is inclined or has a curvature, and formed so that its elongated end contacts the lower surface of the base and elastically deforms according to rotation of the leg.

A battery pack configured to supply electric power to drive the vacuum cleaner may be provided in the cleaner body, and the battery pack may be located on the rear side further than the rotation center of the conveyor wheel.

A main electric motor for supplying suction power is provided in the vacuum cleaner body, and the main body may be located on the rear side further than the rotation center of the conveyor wheel.

The detection part may include a gyro sensor.

The vacuum cleaner may include an obstacle detection element provided on the front surface of the vacuum cleaner body and configured to detect an obstacle located in front of it.

The obstacle detection element may include a laser sensor.

The plurality of obstacle detection elements may be located on an identical extension line, and may also be arranged to be directed in different directions relative to each other.

The vacuum cleaner body may include a body part in which a dust collector is mounted for storing suction dust separated from the air; and a cover element provided in a part of the housing so that it is openable and lockable and configured to selectively protect the upper surface of the dust collector, and an obstacle detection element may be provided in a rounded front surface of the cover element.

One pair of transport wheels may be provided on both sides of the housing part, and the wheeled motor assembly may be coupled to each of the pair of transport wheels to independently drive the transport wheels.

The PCB may drive one of the wheel motor assemblies when an obstacle detection element detects an obstacle.

The PCB can control the wheeled motor assemblies with the possibility of having different speeds relative to each other when the obstacle detection element detects an obstacle.

The PCB can control the wheeled motor units so that they rotate in opposite directions relative to each other when the obstacle detection element detects an obstacle.

A support frame for dividing the interior space of the housing portion into the front portion and the rear portion may be mounted inside the housing portion, and a dust collector for collecting dust may be mounted in front of the support frame.

The carrier frame may include a lower frame in which a battery pack is configured to supply electric power to drive the vacuum cleaner; and an upper frame mounted on the upper end of the lower frame and configured to form a space in which the main electric motor is located to provide a suction force.

One pair of the first side walls can be provided in the upper frame, and the main electric motor can be located between the pair of the first side walls so that the operation of suction and exhaust air of the main electric motor is performed in the forward and reverse directions.

An auxiliary electric motor for assisting in the dust suction operation may be provided in the suction portion, and an auxiliary PCB for driving the auxiliary electric motor may be provided on the outer surface of the first side wall.

The main electric motor may be positioned so that it bends to one of the pair of first side walls, and an opening of the air discharge plate may be formed on the lower surface of the side upper frame.

A septum opening through which air introduced through the plate opening can be formed on the front surface of the lower frame, and a PCB can be mounted on the front surface of the septum opening, and a noise filter to remove noise from the supplied electric power can be provided on its rear surface.

A rear opening that communicates with the space of the lower frame may be formed on the rear surface of the vacuum cleaner body, and a rear cover for opening and closing the rear hole may be provided in the vacuum cleaner body.

The lower frame may be positioned so that it is spaced apart, thereby providing a space into which the battery pack is mounted, and may include one pair of second side walls for guiding the insertion and removal of the battery pack, and a battery limiting groove limited by a second side wall may be formed on both side surfaces of the battery pack.

A bounding portion of the battery that projects with the ability to be inserted into the bounding groove of the battery may be formed in one of a pair of second side walls, and a bounding element of the battery, which is separately molded with the possibility of being inserted into the bounding groove of the battery, may be installed in another of them.

The vacuum cleaner may further include a dust collector that sits in the vacuum cleaner body and is configured to collect intake dust, and the dust collector may include a transparent casing having a cylindrical shape and configured to separate and store dust in the intake air; an upper cover configured to form an upper surface of the dust collector and having a suction port and an outlet port; and a bottom cover configured to open and close the open bottom surface of the dust collector.

The lower cover may include a lower cover shaft attached to the lower end of the transparent casing so that it is rotatable; and a lower hook secured in a position corresponding to the shaft of the lower cover so that it is caught and limited by the catching portion of the casing formed at the lower end of the transparent casing so that the lower cover is kept closed.

Can include a section for installing the lower locking element located on the lower and upper sides of the transparent casing, and a lower locking element installed in the section for installing the lower locking element so that it is movable up and down, and configured to press the lower hook when moving down and therefore cease to attach to the catching portion of the casing.

The upper surface of the hook and the lower end of the lower locking element that contacts the upper surface of the hook may be inclined.

The vacuum cleaner may further include an inner casing having a cylindrical shape and provided inside the dust collector, and the inner casing may form a first dust collecting space between the inner casing and the dust collector and a second dust collecting space in the inner casing to collect dust.

The vacuum cleaner may further include a compression motor assembly provided on one side of the cleaner body in which the dust collector is mounted; a gear gear provided in the bottom cover and connected to the compression motor assembly when the dust collector is installed; and a dust compression unit provided in the inner casing and attached to the transmission gear so that it rotates and thereby compresses the dust in the first dust collecting space.

The transmission gear may include a first transmission gear provided on the lower surface of the lower cover and connected to the compression motor assembly, and a second transmission gear connected to the rotational shaft of the first transmission gear and provided on the upper surface of the lower cover so that it is connected to the compression unit dust, and a bearing through which the rotational shaft of the first gear gear passes and joins can be provided in the bottom cover.

A gasket plate that sits on the upper surface of the second gear wheel, an inner gasket mounted and attached to the gasket plate to seal the open lower surface of the inner cover, and a shaft attachment element passing through the gasket plate and secured to the second gear wheel can be provided. that the cushioning plate is mounted to rotate independently.

The inner liner may include a first sealed portion that has a circular plate shape so that it contacts the open lower end of the inner casing, and a second sealed portion that is provided above the first sealed portion and contacts the inner surface of the inner casing.

The upper cover can be mounted so that it can be detached in the open upper surface of the transparent casing and can have a protruding upper protrusion and a recessed upper groove, which, respectively, are formed on the inner upper end of the transparent cover and the upper cover with the ability to join each other, and the upper locking element for restrictions on one end of the top cover may be provided at the upper end of the transparent casing facing the upper groove.

A portion for mounting the upper locking member may be formed on the outer surface of the transparent casing, and the upper locking member may be rotatably mounted in the mounting portion of the upper locking member so that it extends above the upper end of the transparent housing, thereby providing selective trapping and limiting by top cover.

The vacuum cleaner case may include a part of the case in which the dust collector is installed with the possibility of separation to separate and store dust in the intake air; and a cover element mounted in the housing part so that it is rotatable, and configured to selectively protect the upper portion of the dust collector.

A fitting that connects to the suction unit and communicates with the suction port of the dust collector while the lid member is closed may be provided in the lid member.

A locking assembly that selectively protrudes in both transverse directions by a user operation and is limited by a part of the housing may be provided in the cover member.

The locking assembly may include a pressure member that is mounted to be pressed onto an outer surface of a gripping portion formed in the lid member to be gripped by a user; a transmission element that moves up and down to convey a pressing operation of the pressure element; one pair of main rods that are in contact with the transmission element and rotate by means of the transmission element; and an auxiliary rod, which is connected to the main rod to make a linear reciprocating movement, and the end of which is inserted or removed from the cover element so that it is caught and limited by a part of the housing.

The main thrust may include a through section connected by shafts rotatably on both sides of the transmission element; a first extension portion configured to extend from the through portion to the transmission element and having an inclined surface that is in contact with the inclined lower end of the transmission element; and a second extension section configured to extend in a direction perpendicular to the first extension section, and to which an auxiliary rod is connected via shafts.

A traction guide, which accommodates the auxiliary traction and directs the movement of the auxiliary traction, can be formed in the lid member, and the entrance through which the end of the auxiliary traction is inserted and removed can be opened on the side surface of the lid member corresponding to the traction guide.

An assembly with rods that connects the lid member to a part of the housing to enable the lid member to be kept open can be provided between the lid member and the body part.

A portion for attaching a cover member that continues to rotate with a portion of the housing may be formed at the end of the cover member, and one end of the tie rod assembly may be rotatably mounted in a portion for attaching a cover member, and the other end thereof may be mounted the possibility of sliding in the housing.

The tie rod assembly may include a rotating rod on which one end is rotatably mounted in the cover member; a rotatable sliding element mounted on the other end of the rotating rod and placed on one side of the housing portion to linearly reciprocate when the lid element opens and closes; and an elastic member provided between the cover member and the sliding member to resiliently support the sliding member.

A section for accommodating a tie rod assembly that opens in the direction of the rotational shaft of the cover element and accommodates at least a portion of the sliding element and the rotating rod can be formed in the housing portion.

The guide of the sliding element, which is in contact with both side surfaces of the sliding element to guide the linear reciprocating movement of the sliding element, can be formed in the area for placing the node with rods.

One pair of support sections that are spaced apart from each other may be formed in a rotating rod, and a pair of support sections may include fastening sections of the sliding element configured to protrude in directions facing each other, with the possibility of joining with the possibility of rotation to the sliding element; a support protrusion configured to protrude outward so that it is caught and limited by a striking protrusion protruding from a portion for accommodating the tie rod assembly; and a support slit cut from the end of the support portion to the space between the fastening portion of the sliding member and the support protrusion and configured to provide elasticity to the support protrusion.

The engaging protrusion may be formed in a position that interacts with the abutment protrusion while the lid member is open at a predetermined angle, may support the abutment protrusion, and therefore may limit the rotation of the lid member.

A holder, by which a protrusion formed on one side of the suction unit is caught and limited, and a suction unit is supported, can be provided in the vacuum cleaner body, and the holder can be formed of metal material and then attached to the vacuum cleaner body.

Industrial applicability

According to embodiments, the air flow in a vacuum cleaner can be improved, whereby the present invention has wide industrial applicability.

Claims (53)

1. A vacuum cleaner containing: - vacuum cleaner body; - a dust collector installed with the possibility of separation on the front surface of the vacuum cleaner body and tilted relative to the bottom of the vacuum cleaner body; - a cover element mounted on the upper portion of the vacuum cleaner body with the ability to open and close and form part of the front surface and the upper surface of the vacuum cleaner body; - a suction hose provided on the front surface of the cap element; - a hole formed on the front surface of the cap element with the possibility of communication with the suction hose; - a suction port located on the upper surface of the dust collector, with the open end of the suction port facing the specified suction port, so that the air sucked in via the suction hose is provided with the possibility of introduction into the dust collector; - an exhaust port located on the upper surface of the dust collector, with the open end of the exhaust port facing in the opposite direction of the open end of the suction port for discharging air inside the dust collector; - a main electric motor provided at the rear of the dust collector inside the vacuum cleaner body and configured to create a suction force; - an outlet formed on the rear surface of the vacuum cleaner body and located in a position below the opening; - while the end of the suction hose, the specified hole, the suction port, the exhaust port, the main electric motor are arranged in series from the front side to the rear side and on the same line of passage, and - in this case, the air introduced through the hole is provided with the possibility of exhausting into the outlet through the inside of the vacuum cleaner body. 2. The vacuum cleaner according to claim 1, in which the cover element is formed with the possibility of placing the upper portion of the dust collector. 3. The vacuum cleaner according to claim 1, wherein the connector, in which the suction hose is installed with the possibility of separation, is formed in the cap element and connected to the suction port as an input to the dust collector. 4. The vacuum cleaner according to claim 1, in which the dust collector includes: - a casing for dust; - cyclone trap made with the possibility of separating dust in the casing; and - a top cover attached to the open top surface of the casing for shielding the cyclone trap, - while the suction port and the outlet port are formed on the top cover. 5. The vacuum cleaner according to claim 1, in which the outlet port is located so that it is directed to the inside of the vacuum cleaner body. 6. The vacuum cleaner according to claim 1, wherein said hole, a suction port, an exhaust port and an outlet are located along the center of the vacuum cleaner body and sequentially from the front side to the rear side. 7. The vacuum cleaner according to claim 1, further comprising: - a supporting frame made with the possibility of dividing the inner space of the vacuum cleaner body to provide a separate space for accommodating the main electric motor; - a frame hole formed in the carrier frame, releasing air discharged from the main electric motor; - a filter unit located so that it faces the hole of the frame, and is configured to filter dust in the air discharged by the main electric motor; and - a printed circuit board (PCB) provided inside the vacuum cleaner body and cooled by air passing through the filter unit. 8. The vacuum cleaner according to claim 7, wherein the pre-filter assembly directing the air passing through the dust collector to the main electric motor is provided in a carrier frame. 9. The vacuum cleaner according to claim 7, in which the supporting frame includes: - a patch plate, made with the possibility of dividing the inner part of the vacuum cleaner body on the upper side and the lower side, while the main electric motor is mounted on its upper surface; and - one pair of side walls located at a distance from each other on the upper surface of the patch plate and made with the possibility of forming space to accommodate the main electric motor. 10. The vacuum cleaner according to claim 9, in which one of the pair of side walls is located at a distance from the outer end of the invoice plate and - an auxiliary printed circuit board, formed with the possibility of separation from the PCB and configured to control an auxiliary electric motor to drive an agitator located on one side of the suction hose, is mounted on the side wall. 11. The vacuum cleaner according to claim 9, in which the side walls include a first side wall and a second side, and - the main electric motor is adjacent to the first side wall, and - the frame hole is formed on the lower surface of the patch plate corresponding to the space between the main electric motor and the second side wall. 12. The vacuum cleaner according to claim 7, wherein the PCB is located between the outlet port of the dust container provided in the cleaner body and the outlet of the cleaner body. 13. The vacuum cleaner according to claim 7, in which the supporting frame includes: - a patch plate, made with the possibility of dividing the inner part of the vacuum cleaner body on the upper side and the lower side, while the main electric motor is mounted on its upper surface; - a partition made with the possibility of continuing downward from the bottom surface of the patch plate and dividing the inside of the vacuum cleaner body into a space for accommodating the filter unit and a space for hosting the PCB, and - a baffle hole that is open to allow air passing through the filter unit to the PCB and is formed in the baffle. 14. The vacuum cleaner according to claim 13, wherein the battery pack is provided under the filter unit and is cooled by a portion of the air passing through the filter unit, with the exception of air for cooling the PCB. 15. The vacuum cleaner according to claim 1, further comprising: - a battery pack provided inside the cleaner body; - a supporting frame made with the possibility of dividing the space in which the main electric motor and the battery pack are located; - a frame hole formed in the carrier frame so that the air discharged from the main electric motor is directed to the battery pack; and - a filter unit provided inside the vacuum cleaner body and configured to filter dust in the air discharged from the main electric motor. 16. The vacuum cleaner according to claim 1, further comprising: - a pre-filter assembly provided in the cleaner body and having a guide hole formed to direct air discharged from the outlet port to the main electric motor, - while this hole, the suction port, the exhaust port, the guide hole and the main electric motor are located in series from the front side to the rear side and are located on the same line of passage. 17. The vacuum cleaner according to claim 16, wherein said hole, a suction port, an exhaust port and a guide hole are arranged in series from a front side to a rear side. 18. The vacuum cleaner according to claim 17, wherein said hole, suction port, exhaust port and guide hole are located on a passage line passing through the center of the vacuum cleaner body. 19. The vacuum cleaner according to claim 17, wherein said hole, a suction port, an exhaust port, and a guide hole are arranged downward in series. 20. The vacuum cleaner according to claim 16, wherein at least a portion of the suction port is formed in a position above the outlet port.

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