Vacuum Cleaner Station

Abstract

The present invention relates to a vacuum cleaner station, and the flow path switching module of the present invention includes a case, a connection hose whose inlet moves along the inner surface of the case and is selectively connected to either a first vacuum cleaner flow path connection part or a second vacuum cleaner flow path connection part, a first link whose one side is rotatably connected to the case and whose other side is connected to the connection hose, and a second link whose one side is rotatably connected to the case and whose other side is connected to the connection hose, and the rotation axis of the first link is disposed away from the rotation axis of the second link, so that the first link and the second link move the connection hose to connect to the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part without the user having to directly reassemble the connection hose, and the vacuum cleaner station prevents damage to the sealer due to the inlet of the connection hose moving a predetermined distance away from the inner surface of the case.

Description

[Technical field]

[0001] The present invention relates to a vacuum cleaner station, and more particularly to a vacuum cleaner station to which a first vacuum cleaner and a second vacuum cleaner can be selectively or simultaneously coupled. [Background technology]

[0002] Generally, a vacuum cleaner refers to an electrical device that uses electricity to suck in air to suck up small particles of dirt and dust and fill a dust container provided on the product, and is commonly called a vacuum cleaner.

[0003] Such vacuum cleaners are divided into manual vacuum cleaners, which are operated by a user moving the vacuum cleaner directly, and automatic vacuum cleaners, which perform cleaning while autonomously traveling. Manual vacuum cleaners are divided into canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, stick vacuum cleaners, etc., depending on the shape of the vacuum cleaner.

[0004] In the past, canister-type vacuum cleaners were widely used as household vacuum cleaners, but recently there has been a trend toward handheld and stick vacuum cleaners, which integrate the dust container and the vacuum cleaner body for greater convenience in use.

[0005] In a canister type vacuum cleaner, the main body and the suction port are connected by a rubber hose or pipe, and in some cases, a brush can be inserted into the suction port for use.

[0006] A handheld vacuum cleaner is a device that is extremely portable and lightweight, but because it is short in length, the cleaning area may be limited. Therefore, it is used to clean localized areas such as desks, sofas, and inside cars.

[0007] Stick vacuum cleaners can be used while standing, so cleaning work can be done without bending over. Therefore, they are advantageous for cleaning work while moving around a wide area. While handheld vacuum cleaners are used to clean small spaces, stick vacuum cleaners can clean larger spaces and can clean high places that are difficult to reach. Recently, stick vacuum cleaners have been provided as modular types, so that the type can be actively changed for various objects.

[0008] Recently, robot vacuum cleaners that perform cleaning work by themselves without user operation have been used. The robot vacuum cleaners autonomously travel in the area to be cleaned and suck up foreign objects such as dust on the floor, thereby automatically cleaning the area to be cleaned.

[0009] However, conventional handheld vacuum cleaners, stick vacuum cleaners, and robot vacuum cleaners have a small capacity for the dust container that stores collected dust, which causes the inconvenience of the user having to empty the dust container every time.

[0010] Furthermore, when emptying the dust container, dust may scatter, causing adverse effects on the user's health.

[0011] Furthermore, if the remaining dust in the dust container is not removed, the suction power of the vacuum cleaner decreases.

[0012] Furthermore, if the dust remaining in the dust container is not removed, the residue can cause a foul odor.

[0013] Korean Patent Publication No. 10-2021-0157905 is presented as Prior Document 1. Prior Document 1 relates to a vacuum cleaner station and a method for controlling the vacuum cleaner station.

[0014] Prior Document 1 discloses a vacuum cleaner station having a first flow path connected to a first vacuum cleaner and a second flow path connected to a second vacuum cleaner. The vacuum cleaner station according to Prior Document 1 also discloses a flow path switching valve. The flow path switching valve is disposed between a dust collector and the first and second flow paths, and selectively opens and closes the first and second flow paths connected to the dust collector.

[0015] However, Prior Art Document 1 provides a conceptual explanation of the flow path switching valve, and does not provide a specific explanation of the structure of the flow path switching valve.

[0016] Korean Patent Publication No. 10-2021-0003543 is presented as Prior Document 2. Prior Document 2 relates to a robot vacuum cleaner station.

[0017] Prior Art Document 2 discloses a robot vacuum cleaner station on which a robot vacuum cleaner is mounted and which includes a connection hose that communicates with a dust collector of the robot vacuum cleaner. In a first mode, the connection hose communicates with the dust collector of the robot vacuum cleaner, sucks in dust collected by the robot vacuum cleaner and collects it in a dust collector of the station. In a second mode, the lower end of the connection hose can be separated from the vacuum cleaner station and connected to another cleaning module, and sucks in dust present in areas other than the robot vacuum cleaner and collects it in the dust collector of the station.

[0018] According to Prior Art 2, the vacuum cleaner station can selectively suck up dust present at a position other than the robot vacuum cleaner. However, the user must open the cover of the vacuum cleaner station and directly separate the connecting hose, which causes the dust to scatter during the separation process. [Prior art documents] [Patent documents]

[0019] [Patent Document 1] Korean Patent Publication No. 10-2021-0157905 [Patent Document 2] Korean Patent Publication No. 10-2021-0003543 Summary of the Invention [Problem to be solved by the invention]

[0020] The problem to be solved by the present invention is to provide a vacuum cleaner station that solves the problems of the conventional vacuum cleaner stations as described above. That is, in the conventional vacuum cleaner stations, in order to use the connecting hose for another purpose, a user must open a cover and directly separate the connecting hose, but the problem to be solved by the present invention is to provide a vacuum cleaner station including a flow path switching module that can selectively connect the connecting hose to the first vacuum cleaner or the second vacuum cleaner without the user having to directly reassemble the connecting hose when the first vacuum cleaner and the second vacuum cleaner are selectively or simultaneously coupled to the vacuum cleaner station.

[0021] Another problem to be solved by the present invention is to provide a vacuum cleaner station that can prevent damage to a sealer due to friction with other components when a connection hose of a flow path switching module moves between a first vacuum cleaner connection flow path connection portion and a second vacuum cleaner connection flow path connection portion.

[0022] Another problem to be solved by the present invention is to provide a cleaner station capable of accurately coupling a connection hose of a flow path switching module to a first cleaner connection flow path connecting portion or a second cleaner connection flow path connecting portion.

[0023] The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0024] In order to achieve the above object, the vacuum cleaner station according to the present invention includes a housing that forms an outer shape, at least one of a first vacuum cleaner or a second vacuum cleaner is coupled to the housing, and forms a space therein, a first vacuum cleaner flow path that is disposed inside the housing and connected to a dust container of the first vacuum cleaner, a second vacuum cleaner flow path that is disposed inside the housing and connected to a dust container of the second vacuum cleaner, and a flow path switching module that selectively connects a dust collector disposed in the housing to the first vacuum cleaner flow path or the second vacuum cleaner flow path. Here, the flow path switching module includes a case that is formed in a cylindrical shape with a space therein and has a first vacuum cleaner flow path connection part that is connected to the first vacuum cleaner flow path and a second vacuum cleaner flow path connection part that is connected to the second vacuum cleaner flow path, a connection hose whose inlet moves along the inner circumferential surface of the case and is selectively coupled to either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part, a first link that is rotatably coupled to the case at one side and coupled to the connection hose at the other side, and a second link that is rotatably coupled to the case at one side and coupled to the connection hose at the other side. At this time, the rotation shaft of the first link is disposed away from the rotation shaft of the second link.

[0025] The connection hose may be in close contact with the inner peripheral surface of the case when connected to either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part, and may be separated from the inner peripheral surface of the case when moving from either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part to the other.

[0026] At least one of the rotation shaft of the first link and the rotation shaft of the second link may be disposed away from the central axis of the case.

[0027] A first locus formed by movement of a connection point between the first link and the connection hose may intersect at least two times with an imaginary reference circle that is concentric with the inner circumferential surface of the case.

[0028] A second locus formed by movement of the connection point between the second link and the connection hose may intersect at least two times with an imaginary reference circle that is concentric with the inner circumferential surface of the case.

[0029] In the flow path switching module, the radius of curvature of the inner circumferential surface of the case may be smaller than the radius of curvature formed by the path of the inlet of the connection hose.

[0030] With respect to an imaginary line extending in the longitudinal direction of the connection hose as a reference, the connection portion between the first link and the case may be disposed on an opposite side to the connection portion between the first link and the connection hose.

[0031] The length of the first link may be greater than the length of the second link.

[0032] When viewed from one side, the flow path switching module may have a first link intersecting with a second link.

[0033] The flow path switching module may include an elastic member having one side connected to the case and the other side connected to the second link.

[0034] The flow path switching module may include a switching motor disposed on one side of the case and generating power to move the connection hose, and a drive cam coupled to the switching motor and transmitting the power to the first link.

[0035] The first link may include a gear portion having gear teeth formed on an end thereof, and the drive cam may include a gear portion that connects with the gear portion of the first link.

[0036] The driving cam may include a sensing portion protruding radially outward from the shaft of the switching motor, and the flow path switching module may include a position sensor disposed on one side of the sensing portion and turned on and off by the sensing portion to sense the position of the connecting hose. In this case, the sensing portion may include a first surface that pressurizes the position sensor to turn it on, and a second surface adjacent to the first surface to turn the position sensor off.

[0037] In order to achieve the above object, the vacuum cleaner station according to the present invention includes a housing that forms an outer shape, at least one of a first vacuum cleaner or a second vacuum cleaner is coupled to the housing, and forms a space therein, a first vacuum cleaner flow path that is disposed inside the housing and connected to a dust container of the first vacuum cleaner, a second vacuum cleaner flow path that is disposed inside the housing and connected to a dust container of the second vacuum cleaner, and a flow path switching module that selectively connects a dust collector disposed in the housing to the first vacuum cleaner flow path or the second vacuum cleaner flow path. The flow path switching module includes a case that is formed in a cylindrical shape and has a first vacuum cleaner flow path connection part that is connected to the first vacuum cleaner flow path and a second vacuum cleaner flow path connection part that is connected to the second vacuum cleaner flow path, and a connection hose whose inlet moves along the inner circumferential surface of the case and is selectively coupled to either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part. The connection hose is in close contact with the inner surface of the case when connected to either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part, and is separated from the inner surface of the case when moving from either the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part to the other.

[0038] The path along which the inlet of the connection hose moves may be formed into a shape similar to an ellipse, and the radius of curvature of the ellipse may be greater than the radius of curvature of the inner circumferential surface of the case.

[0039] The flow path switching module may include a plurality of links, one side of which is rotatably connected to the case and the other side of which is connected to the connection hose, and in this case, at least one of the plurality of links may have a radius of curvature of a path along which an end portion connected to the case moves that is larger than a radius of curvature of an inner peripheral surface of the case.

[0040] Other specific details of the embodiments are included in the detailed description and drawings. Effect of the Invention

[0041] The vacuum station of the present invention may provide one or more of the following advantages:

[0042] First, the flow path switching module has one side rotatably connected to the case and the other side connected to the connecting hose, and the rotation axis of the first link is positioned away from the rotation axis of the second link, which has the advantage that the first link and the second link can selectively be connected to the first vacuum cleaner flow path connection part or the second vacuum cleaner flow path connection part by moving the connecting hose without the user having to directly reassemble the connecting hose.

[0043] Secondly, when the connecting hose moves between the first vacuum cleaner flow path connection part and the second vacuum cleaner flow path connection part, it moves away from the inner surface of the case by a predetermined distance or more, which has the advantage of preventing the sealer arranged at the inlet of the connecting hose from coming into contact with the case and being damaged.

[0044] Thirdly, since the first link and the second link are connected to the case at different positions and connected to the inlet of the connection hose at different positions to guide the connection hose, there is an advantage that the connection hose is accurately and closely connected to the first vacuum cleaner connection flow path connection part or the second vacuum cleaner connection flow path connection part.

[0045] The effects of the present invention are not limited to the effects described above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims. [Brief description of the drawings]

[0046] [Figure 1] 1 is a perspective view of a cleaning system including a cleaning station and a cleaning cleaner according to the present invention; [Diagram 2] 1 is a schematic diagram showing a configuration of a vacuum cleaner system according to the present invention; [Diagram 3] FIG. 2 is a perspective view of the cleaning station with a cover partially opened to show the flow path switching module. [Figure 4] FIG. 4 is an enlarged view of the flow path switching module of FIG. 3. [Diagram 5] FIG. 2 is an exploded view of the flow path switching module according to the present invention. [Figure 6]FIG. 13 is an enlarged view of a portion where a flow path switching module is coupled in a vacuum cleaner station. [Figure 7] FIG. 7 is an enlarged view of the flow path switching module after the first link in FIG. 6 has been hidden line processed. [Figure 8] FIG. 8 is an enlarged view of the flow path switching module after the connecting hoses in FIG. 7 have been hidden line processed. [Figure 9] FIG. 7 is a view showing a state in which the connection hose in FIG. 6 has moved a predetermined distance toward the second cleaner flow path connection portion. [Figure 10] FIG. 10 is a view showing a state in which the connection hose in FIG. 9 has been further moved a predetermined distance toward the second cleaner flow path connection portion. [Figure 11] FIG. 13 is an enlarged view of a portion where a flow path switching module is coupled in a cleaner station, showing a state where a connection hose is coupled to a second cleaner flow path connector; [Figure 12] FIG. 11 is a diagram showing a first trajectory and a second trajectory in a flow path switching module. [Figure 13] FIG. 11 is a diagram showing a first trajectory and a second trajectory in a flow path switching module. [Figure 14] FIG. 2 is an enlarged view of the chamber in which the flow path switching module is located when the flow path switching module is separated. [Figure 15] FIG. 2 is a perspective view of a flow path switching module according to the present invention. [Figure 16] 7 is an enlarged view of a flange and a flange groove portion in FIG. 6. FIG. [Figure 17] 7 is an enlarged view of a flange and a flange groove portion in FIG. 6. FIG. [Figure 18] 7 is an enlarged view of the flange and flange groove portion in FIG. 6. FIG. [Figure 19] 4 shows the signal generated by the position sensor while the connecting hose moves from a first cleaner flow path connection to a second cleaner flow path connection; FIG. [Figure 20] 4 shows the signal generated by the position sensor while the connecting hose moves from the second cleaner flow path connection to the first cleaner flow path connection; FIG. [Figure 21]13A and 13B are diagrams showing a step in which the flow path switching module is separated from the housing. [Figure 22] 13A and 13B are diagrams showing a step in which the flow path switching module is separated from the housing. [Diagram 23] 13A and 13B are diagrams showing a step in which the flow path switching module is separated from the housing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0047] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0048] Since the present invention can be modified in various ways and has various embodiments, specific embodiments are shown in the drawings and will be specifically described in the detailed description. This is not intended to limit the present invention to the specific embodiments, and should be interpreted as including all modifications, equivalents, and alternatives within the spirit and technical scope of the present invention.

[0049] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. A singular expression may include a plural expression unless otherwise clearly indicated in the context.

[0050] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms as defined in commonly used dictionaries may be interpreted as having a meaning consistent with the contextual meaning of the relevant art, and may not be interpreted as having an ideal or overly formal meaning unless clearly defined in this application.

[0051] FIG. 1 discloses an oblique view of a vacuum cleaner system 10 comprising a vacuum cleaner station 100, a first vacuum cleaner 200, and a second vacuum cleaner 300 according to an embodiment of the present invention, and FIG. 2 discloses a schematic diagram of the configuration of the vacuum cleaner system 10 according to an embodiment of the present invention.

[0052] 3 is a perspective view of a vacuum cleaner station with a part of the cover opened to show the flow path switching module, FIG. 4 is an enlarged view of the flow path switching module in FIG. 3, FIG. 5 is an exploded view of the flow path switching module according to the present invention, FIG. 6 is an enlarged view of a portion where the flow path switching module is coupled in the vacuum cleaner station, FIG. 7 is an enlarged view of the flow path switching module after the first link in FIG. 6 has been hidden line processed, FIG. 8 is an enlarged view of the flow path switching module after the connection hose in FIG. 7 has been hidden line processed, FIG. 9 is a view of a state where the connection hose in FIG. 6 has been moved a predetermined distance toward the second vacuum cleaner flow path connection portion, FIG. 10 is a view of a state where the connection hose in FIG. 9 has been further moved a predetermined distance toward the second vacuum cleaner flow path connection portion, and FIG. 11 is an enlarged view of a portion where the flow path switching module is coupled in the vacuum cleaner station. 12 and 13 are diagrams showing a state in which the connection hose is connected to the second vacuum cleaner flow path connection portion, FIG. 14 is an enlarged view of a chamber in which the flow path switching module is provided when the flow path switching module is separated, FIG. 15 is a perspective view of the flow path switching module of the present invention, FIGS. 16 to 18 are enlarged views of the flange and flange groove portion in FIG. 6, FIG. 19 is a diagram showing a signal generated by the position sensor while the connection hose moves from the first vacuum cleaner flow path connection portion to the second vacuum cleaner flow path connection portion, FIG. 20 is a diagram showing a signal generated by the position sensor while the connection hose moves from the second vacuum cleaner flow path connection portion to the first vacuum cleaner flow path connection portion, and FIGS. 21 to 23 are diagrams showing the step of separating the flow path switching module from the housing.

[0053] 1 and 2, a vacuum cleaner system 10 according to an embodiment of the present specification may include a vacuum cleaner station 100 and vacuum cleaners 200 and 300. In this case, the vacuum cleaners 200 and 300 may include a first vacuum cleaner 200 and a second vacuum cleaner 300. Meanwhile, in the present embodiment, some of these configurations may be omitted, and additional configurations other than these are not excluded.

[0054] The vacuum cleaner system 10 may include a vacuum cleaner station 100. A first vacuum cleaner 200 and a second vacuum cleaner 300 may be coupled to the vacuum cleaner station 100. The first vacuum cleaner 200 may be coupled to a side of the vacuum cleaner station 100. Specifically, a main body of the first vacuum cleaner 200 may be coupled to a side of the vacuum cleaner station 100. The second vacuum cleaner 300 may be coupled to a lower part of the vacuum cleaner station 100. The vacuum cleaner station 100 may remove dust from a dust bin 220 of the first vacuum cleaner 200. The vacuum cleaner station 100 may remove dust from a dust bin (not shown) of the second vacuum cleaner 300.

[0055] First, the structure of the first cleaner 200 will be described with reference to FIGS.

[0056] The first vacuum cleaner 200 may refer to a vacuum cleaner that is manually operated by a user. For example, the first vacuum cleaner 200 may refer to a handheld vacuum cleaner or a stick vacuum cleaner.

[0057] The first vacuum cleaner 200 may be attached to the cleaner station 100. The first vacuum cleaner 200 may be supported by the cleaner station 100. The first vacuum cleaner 200 may be coupled to the cleaner station 100.

[0058] The first vacuum cleaner 200 may include a main body 210. The main body 210 may include a main body housing 211, a suction unit 212, a dust separation unit 213, a suction motor 214, an air exhaust cover 215, a handle 216, and an operation unit 218.

[0059] The main body housing 211 may form the exterior of the first vacuum cleaner 200. The main body housing 211 may provide a space for accommodating the suction motor 214 and a filter (not shown) therein. The main body housing 211 may be configured in a shape similar to a cylinder.

[0060] The suction part 212 may protrude outward from the main body housing 211. As an example, the suction part 212 may be formed in a cylindrical shape with an opening inside. The suction part 212 may be coupled to an extension tube 250. The suction part 212 may provide a flow path (hereinafter, referred to as a "suction flow path") through which air containing dust can flow.

[0061] On the other hand, in this embodiment, a virtual line may be formed penetrating the inside of the cylindrically configured suction part 212. That is, a virtual suction flow path through-line A2 may be formed penetrating the suction flow path in the longitudinal direction.

[0062] The dust separation unit 213 may be in communication with the suction unit 212. The dust separation unit 213 may separate dust sucked into the inside through the suction unit 212. The internal space of the dust separation unit 213 may be in communication with the internal space of the dust container 220.

[0063] For example, the dust separation unit 213 may include at least two cyclone units capable of separating dust by a cyclone flow. Also, the internal space of the dust separation unit 213 may be connected to the suction flow path. Therefore, the air and dust sucked through the suction unit 212 flow in a spiral shape along the inner circumferential surface of the dust separation unit 213. Therefore, a cyclone flow may be generated in the internal space of the dust separation unit 213.

[0064] Dust separation section 213 communicates with suction section 212, and is configured to apply the principle of a dust collector using centrifugal force to separate dust sucked into main body 210 via suction section 212.

[0065] The suction motor 214 can generate a suction force to suck in air. The suction motor 214 may be housed in the main body housing 211. The suction motor 214 can generate a suction force by rotation. As an example, the suction motor 214 may be provided in a cylindrical shape.

[0066] On the other hand, in this embodiment, a virtual suction motor axis A1 may be formed by extending the rotation shaft of the suction motor 214.

[0067] The air exhaust cover 215 may be disposed on one axial side of the main body housing 211. A filter for filtering air may be housed in the air exhaust cover 215. As an example, the air exhaust cover 215 may house a HEPA filter.

[0068] The air exhaust cover 215 may be formed with an air exhaust port (not shown) for exhausting the air sucked by the suction force of the suction motor 214 .

[0069] The handle 216 may be held by a user. The handle 216 may be disposed behind the suction motor 214. As an example, the handle 216 may be formed in a shape similar to a cylinder. Alternatively, the handle 216 may be formed in a curved cylinder. The handle 216 may be disposed at a predetermined angle with the main body housing 211, the suction motor 214, or the dust separation unit 213.

[0070] On the other hand, in this embodiment, a virtual handle axis line extending along the longitudinal direction of the handle 216 (the axial direction of the pillar) may be formed.

[0071] The operating unit 218 may be disposed on the handle 216. The operating unit 218 may be disposed on an inclined surface formed in an upper region of the handle 216. A user can input an operation or stop command for the first vacuum cleaner 200 via the operating unit 218.

[0072] The first cleaner 200 may include a dust container 220. The dust container 220 may be in communication with the dust separating unit 213. The dust container 220 may contain the dust separated by the dust separating unit 213.

[0073] The dust bin 220 may include a dust bin body 221 and a discharge cover 222 .

[0074] The dust container body 221 can provide a space for storing the dust separated by the dust separation unit 213. As an example, the dust container body 221 can be formed in a cylindrical shape.

[0075] The dust bin 220 may include a drain cover 222. The drain cover 222 may be disposed on a lower surface of the dust bin 220.

[0076] The discharge cover 222 may be provided to open and close one longitudinal end of the dust receptacle body 221. Specifically, the discharge cover 222 may selectively open and close a lower portion of the dust receptacle 220 that opens downward.

[0077] The discharge cover 222 can be coupled to the dust bin body 221 by a hook coupling, while the discharge cover 222 can be separated from the dust bin body 221 by a coupling lever (not shown).

[0078] The first vacuum cleaner 200 may include a battery housing 230. The battery 240 may be accommodated in the battery housing 230. The battery housing 230 may be disposed below the handle 216. As an example, the battery housing 230 may have a hexahedral shape with an open bottom. A rear surface of the battery housing 230 may be connected to the handle 216.

[0079] The battery housing 230 may include a receiving portion that is open downward. The battery 240 can be connected or disconnected through the receiving portion of the battery housing 230.

[0080] The first cleaner 200 may include a battery 240 .

[0081] For example, the battery 240 may be detachably coupled to the first vacuum cleaner 200. The battery 240 may be detachably coupled to the battery housing 230. As an example, the battery 240 may be inserted into the battery housing 230 from below the battery housing 230. With this configuration, the portability of the first vacuum cleaner 200 may be improved.

[0082] Alternatively, the battery 240 may be provided integrally inside the battery housing 230. In this case, the lower surface of the battery 240 is not exposed to the outside.

[0083] The battery 240 is capable of supplying power to the suction motor 214 of the first cleaner 200 .

[0084] The first vacuum cleaner 200 may include an extension tube 250. The extension tube 250 may be in communication with the cleaning module 260. The extension tube 250 may be in communication with the main body 210. The extension tube 250 may be in communication with the suction portion 212 of the main body 210. The extension tube 250 may be formed in a long cylindrical shape.

[0085] The main body 210 may be connected to an extension tube 250. The main body 210 may be connected to a cleaning module 260 via the extension tube 250. The main body 210 may generate suction force via a suction motor 214 and provide the suction force to the cleaning module 260 via the extension tube 250. External dust enters the main body 210 via the cleaning module 260 and the extension tube 250.

[0086] The first vacuum cleaner 200 may include a cleaning module 260. The cleaning module 260 may be in communication with the extension tube 250. Therefore, the outside air may flow into the main body 210 of the first vacuum cleaner 200 through the cleaning module 260 and the extension tube 250 by the suction force generated in the main body 210 of the first vacuum cleaner 200.

[0087] Dust in the dust container 220 of the first vacuum cleaner 200 is collected in the dust collector 170 of the vacuum cleaner station 100 by gravity and the suction force of the dust collection motor 191. This provides convenience to the user as the user can remove dust in the dust container without performing any additional operations. In addition, the user does not need to empty the dust container every time, and the dust is prevented from scattering when emptying the dust container.

[0088] The first vacuum cleaner 200 may be coupled to a side of the housing 110. Specifically, the main body 210 of the first vacuum cleaner 200 may be attached to the coupling portion 120. In this case, the central axis of the dust container 220 may be arranged in a direction parallel to the ground, and the extension tube 250 may be arranged along a direction perpendicular to the ground (see FIG. 2).

[0089] The dust removal system 10 may include a second vacuum cleaner 300. The second vacuum cleaner 300 may refer to a robot vacuum cleaner. The second vacuum cleaner 300 may autonomously travel in an area to be cleaned and suck up foreign matter such as dust from a floor, thereby automatically cleaning the area to be cleaned. The second vacuum cleaner 300 may include a distance sensor that detects a distance to an obstacle such as furniture, office supplies, or a wall installed in the cleaning area, and left and right wheels for moving the robot vacuum cleaner. The second vacuum cleaner 300 may be coupled to a vacuum cleaner station. Dust in the second vacuum cleaner 300 is collected in the dust collector 170 through the second flow path 182.

[0090] The cleaning station 100 of the present invention will be described with reference to FIGS. 1 and 2 as follows.

[0091] A first vacuum cleaner 200 and a second vacuum cleaner 300 may be disposed in the vacuum cleaner station 100. The first vacuum cleaner 200 may be coupled to a side of the vacuum cleaner station 100. Specifically, a main body of the first vacuum cleaner 200 may be coupled to a side of the vacuum cleaner station 100. The second vacuum cleaner 300 may be coupled to a lower part of the vacuum cleaner station 100. The vacuum cleaner station 100 may remove dust from a dust bin 220 of the first vacuum cleaner 200. The vacuum cleaner station 100 may remove dust from a dust bin (not shown) of the second vacuum cleaner 300.

[0092] The cleaner station 100 may include a housing 110. The housing 110 forms an outer shape of the cleaner station 100, and forms a space inside the housing 110 to which at least one of the first cleaner 200 and the second cleaner 300 is coupled.

[0093] The housing 110 may form the exterior of the vacuum cleaner station 100. Specifically, the housing 110 may be formed in a columnar shape including at least one or more outer wall surfaces. As an example, the housing 110 may be formed in a shape similar to a rectangular column.

[0094] At least one of the first vacuum cleaner 200 and the second vacuum cleaner 300 is coupled to the housing 110. For example, only the first vacuum cleaner 200 may be coupled to the housing 110, only the second vacuum cleaner 300 may be coupled to the housing 110, or both the first vacuum cleaner 200 and the second vacuum cleaner 300 may be coupled to the housing 110.

[0095] The housing 110 may have a space formed therein for accommodating a dust collector 170 for accommodating dust therein, and a dust suction module 190 for generating a flow force for collecting dust in the dust collector 170 .

[0096] The housing 110 may include a bottom surface 111 , an outer wall surface 112 , and a top surface 113 .

[0097] The bottom surface 111 can support the lower side in the gravity direction of the dust suction module 190. That is, the bottom surface 111 can support the lower side of the dust collection motor 191 of the dust suction module 190.

[0098] In this case, the bottom surface 111 may be disposed facing the ground. The bottom surface 111 may be disposed parallel to the ground or inclined at a predetermined angle to the ground. This configuration has the advantage that the dust collection motor 191 can be stably supported and the overall weight balance can be maintained even when the first vacuum cleaner 200 is connected.

[0099] The outer wall surface 112 may refer to a surface formed along the direction of gravity and may refer to a surface connected to the bottom surface 111. For example, the outer wall surface 112 may refer to a surface vertically connected to the bottom surface 111. As an embodiment different from this, the outer wall surface 112 may be disposed so as to be inclined at a predetermined angle with the bottom surface 111.

[0100] The upper surface 113 may form the upper exterior of the cleaner station. That is, the upper surface 113 may refer to the surface of the cleaner station that is located at the top in the direction of gravity and is exposed to the outside.

[0101] For reference, in this embodiment, the upper side and the lower side may respectively mean the upper side and the lower side along the direction of gravity (direction perpendicular to the ground) when the vacuum cleaner station 100 is placed on the ground.

[0102] At this time, the upper surface 113 may be disposed parallel to the ground or inclined at a predetermined angle to the ground.

[0103] A display unit may be disposed on the upper surface 113. For example, the display unit may display the status of the vacuum cleaner station 100, the status of the first vacuum cleaner 200, and the status of the second vacuum cleaner 300, as well as other information such as the cleaning progress and a map of the cleaning area.

[0104] Meanwhile, according to an embodiment, the upper surface 113 may be provided so as to be separable from the outer wall surface 112. In this case, when the upper surface 113 is separated, an internal space surrounded by the outer wall surface 112 may be provided with a terminal (not shown) capable of accommodating a battery separated from the vacuum cleaner 200, 300 and charging the separated battery.

[0105] The vacuum cleaner station 100 may include a coupling portion 120 for coupling with the first vacuum cleaner 200. Specifically, the coupling portion 120 may be disposed on the outer wall surface 112, and the main body 210, the dust container 220, and the battery housing 230 of the first vacuum cleaner 200 may be coupled to the coupling portion 120. Specifically, the coupling portion 120 may be disposed on the front surface of the outer wall surface 112.

[0106] A first cleaner 200 may be coupled to the coupling portion 120 .

[0107] The vacuum cleaner station 100 of the present invention may include a fixing unit (not shown). The fixing unit (not shown) may be disposed in the housing 110. Also, the fixing unit (not shown) may be disposed on the rear surface of the coupling part 120. The fixing unit (not shown) may fix the first vacuum cleaner 200 coupled to the coupling part 120. Specifically, the fixing unit (not shown) may fix the dust container 220 and the battery housing 230 of the first vacuum cleaner 200 coupled to the coupling part 120.

[0108] The cleaner station 100 of the present invention may include a door unit (not shown). The door unit (not shown) may be configured to open and close the first cleaner flow path 181.

[0109] The cleaner station 100 of the present invention may also include a cover opening unit (not shown) disposed in the coupling portion 120, and capable of opening the discharge cover 222 of the first cleaner 200.

[0110] The vacuum cleaner station 100 may include a dust collector 170. The dust collector 170 may be disposed inside the housing 110. The dust collector 170 may be disposed below the coupling portion 120 in the direction of gravity.

[0111] For example, the dust collector 170 may refer to a dust bag that collects dust sucked from the inside of the dust container 220 of the first cleaner 200 by the dust collection motor 191 .

[0112] The dust trap 170 may be releasably coupled to the housing 110 .

[0113] Therefore, the dust trapping portion 170 may be separated from the housing 110 and discarded, and a new dust trapping portion 170 may be coupled to the housing 110. In other words, the dust trapping portion 170 may be defined as a consumable part.

[0114] The dust bag may be provided so that its volume increases to accommodate dust when suction force is generated by the dust collection motor 191. For this purpose, the dust bag may be provided from a material that allows air to pass through but does not allow foreign matter such as dust to pass through. As an example, the dust bag may be made of a nonwoven material and may have a hexahedral shape when the volume expands.

[0115] Therefore, the user does not need to fasten a bag or the like in which dust is collected, which improves user convenience.

[0116] Meanwhile, the cleaning station 100 according to an embodiment of the present invention may further include a sterilization module (not shown).

[0117] A sterilization module (not shown) may be provided on the flow path unit 180, or at least one sterilization module may be provided around the dust collector 170.

[0118] The sterilization module (not shown) is configured to sterilize the dust collected in the dust collecting unit 170.

[0119] The cleaner station 100 may include a flow path unit 180. The flow path unit 180 may connect the first cleaner 200 or the second cleaner 300 to the dust collector 170.

[0120] The flow path unit 180 may include a first cleaner flow path 181 , a second cleaner flow path 182 , a dust collection flow path 184 , and a flow path switching module 183 .

[0121] The first cleaner passage 181 is disposed inside the housing 110 and connects to the dust bin 220 of the first cleaner 200 .

[0122] The first cleaner flow path 181 may connect the dust container 220 and the dust collection unit 170 of the first cleaner 200. The first cleaner flow path 181 may be disposed on the rear side of the coupling unit 120. The first cleaner flow path 181 may refer to a space between the dust container 220 and the dust collection unit 170 of the first cleaner 200.

[0123] The first cleaner channel 181 may extend rearward from the coupling portion 120, bend, and then extend downward.

[0124] Dust in the dust container 220 of the first cleaner 200 can move to the dust collector 170 through the first cleaner flow path 181 .

[0125] The second cleaner passage 182 is disposed within the housing 110 and connects to a dust bin (not shown) of the second cleaner 300 .

[0126] The second cleaner flow path 182 may connect the second cleaner 300 and the dust collection unit 170. Dust in the second cleaner 300 may move to the dust collection unit 170 through the second cleaner flow path 182.

[0127] The dust collection passage 184 has an inlet selectively connected to either the first cleaner passage 181 or the second cleaner passage 182, and an outlet connected to the dust collector.

[0128] The inlet of the dust collection passage 184 is coupled to a dust collection passage connection portion 1831 d of the case 1831 .

[0129] As shown in Fig. 6, when the inlet 1832a of the connection hose 1832 is coupled to the first cleaner flow path connector 1831b, the dust collection flow path 184 is connected to the first cleaner flow path 181, allowing air to flow. In contrast, as shown in Fig. 9, when the inlet 1832a of the connection hose 1832 is coupled to the second cleaner flow path connector 1831c, the dust collection flow path 184 is connected to the second cleaner flow path 182, allowing air to flow.

[0130] The outlet of the dust collection passage 184 is connected to the inlet of the dust collection part 170 and communicates with the internal space of the dust collection part 170 .

[0131] The flow path switching module 183 is a component that selectively connects the dust collection flow path 184 to the first cleaner flow path 181 or the second cleaner flow path 182.

[0132] The flow path switching module 183 selectively connects the dust collector 170 disposed in the housing 110 to the first cleaner flow path 181 or the second cleaner flow path 182 .

[0133] The flow path switching module 183 is disposed between the dust collector 170 and the first cleaner flow path 181 and the second cleaner flow path 182.

[0134] The flow path switching module 183 may be disposed between the dust collection unit 170 and the first cleaner flow path 181 and the second cleaner flow path 182. The flow path switching module 183 can selectively open and close the first cleaner flow path 181 and the second cleaner flow path 182 connected to the dust collection unit 170. This can prevent a decrease in suction force caused by the multiple flow paths 181 and 182 being opened.

[0135] For example, when only the first cleaner 200 is connected to the cleaner station 100, the flow path switching module 183 can connect the first cleaner flow path 181 to the dust collection unit 170 and disconnect the second cleaner flow path 182 from the dust collection unit 170.

[0136] In other words, the first cleaner flow path 181 and the dust collection unit 170 are connected as follows: The connection hose 1832 is coupled to the first cleaner flow path connector 1831b. The connection hose 1832 is connected to the first cleaner flow path 181. The first cleaner flow path 181 is in communication with the dust collection unit 170.

[0137] In other words, the second cleaner flow path 182 and the dust collection unit 170 are connected as follows: The connection hose 1832 is coupled to the second cleaner flow path connector 1831c. The connection hose 1832 is connected to the second cleaner flow path 182. The second cleaner flow path 182 is in communication with the dust collection unit 170.

[0138] The vacuum cleaner station 100 may include a dust suction module 190. The dust suction module 190 may include a dust collection motor 191, a first filter 192, and a second filter (not shown).

[0139] The dust collection motor 191 may be disposed under the dust collector 170. The dust collection motor 191 may generate a suction force in the first cleaner flow path 181 and the second cleaner flow path 182. Thus, the dust collection motor 191 may provide a suction force capable of sucking in dust in the dust container 220 of the first cleaner 200 and dust in the second cleaner 300.

[0140] The dust collection motor 191 can generate a suction force by rotating. As an example, the dust collection motor 191 may be formed in a shape similar to a cylinder.

[0141] The first filter 192 may be disposed between the dust collection unit 170 and the dust collection motor 191. The first filter 192 may be a pre-filter.

[0142] A second filter (not shown) may be disposed between the dust collection motor 191 and the outer wall surface 112. The second filter (not shown) may be a HEPA filter.

[0143] Meanwhile, the vacuum cleaner station 100 may further include a charging unit (not shown). The charging unit (not shown) may be electrically connected to the first vacuum cleaner 200 or the second vacuum cleaner 300. The charging unit (not shown) may supply power to a battery of the first vacuum cleaner 200 or the second vacuum cleaner 300.

[0144] Also, the vacuum cleaner station 100 may further include a side door (not shown). The side door may be disposed on the housing 110. The side door may selectively expose the dust collector 170 to the outside. This allows a user to easily remove the dust collector 170 from the vacuum cleaner station 100.

[0145] Hereinafter, the detailed structure of the flow path switching module 183 will be described with reference to FIGS.

[0146] First, directions are defined based on FIG. 6. FIG. 6 is a front view of the flow path switching module 183. The direction in which the second cleaner flow path 182 is located with respect to the case 1831 as the center is defined as the left side. The direction in which the driving cam 1836 is located with respect to the case 1831 as the center is defined as the right side. The direction in which the first cleaner flow path 181 is located with respect to the case 1831 as the center is defined as the upward direction. The direction in which the dust collecting unit 170 is located with respect to the case 1831 as the center is defined as the downward direction. The direction in which the first link 1833 is located with respect to the case 1831 as the center is defined as the forward direction. The direction in which the second link 1834 is located with respect to the case 1831 as the center is defined as the backward direction.

[0147] Referring to FIG. 3, the flow path switching module 183 is disposed inside the housing 110 .

[0148] 3, the flow path switching module 183 may be disposed inside the left cover of the housing 110 and exposed to the outside when the left cover of the housing 110 is opened. Alternatively, unlike FIG. 3, the flow path switching module 183 may be disposed on the inner side of the right cover.

[0149] Referring to FIG. 4, the flow path switching module 183 is disposed inside a flow path switching module cover 185, and when the flow path switching module cover 185 is opened, the flow path switching module 183 can be exposed to the outside.

[0150] The flow passage switching module 183 includes a case 1831 , a connection hose 1832 , a first link 1833 , a second link 1834 , a switching motor 1835 , and a drive cam 1836 .

[0151] The flow passage switching module 183 includes a case 1831. The case 1831 is a component that forms an outer shape and forms a frame to which other components are coupled or supported.

[0152] The case 1831 is formed in a cylindrical shape with an internal space, and includes a first cleaner flow path connector 1831b connected to the first cleaner flow path 181 and a second cleaner flow path connector 1831c connected to the second cleaner flow path 182. The case 1831 also includes a dust collection flow path connector 1831d connected to the dust collection flow path 184.

[0153] Case 1831 may have an arc on its inner circumferential surface. The inner circumferential surface of case 1831 forms a part of an imaginary circle centered on the central axis. With reference to Fig. 6, central axis 1831a of the case is disposed in the front-rear direction.

[0154] The first cleaner flow path connection part 1831b may be formed to protrude radially outward from the case 1831. Referring to Fig. 6, the first cleaner flow path connection part 1831b may be formed to protrude upward. A flange 1831ba is formed at an end of the first cleaner flow path connection part 1831b, and the flange 1831ba may be inserted into a groove 181c formed in the first cleaner flow path 181 to be fixed.

[0155] The second cleaner flow path connection part 1831c may be formed to protrude radially outward from the case 1831. Referring to Fig. 6, the second cleaner flow path connection part 1831c may be formed to protrude leftward. A flange 1831ca is formed at an end of the second cleaner flow path connection part 1831c, and the flange 1831ca may be inserted into a groove 182a formed in the second cleaner flow path 182 to be fixed.

[0156] The dust collection passage connection part 1831d may be formed to protrude radially outward from the case 1831. Referring to Fig. 6, the dust collection passage connection part 1831d may be formed to protrude downward. A flange 1831da is formed at an end of the dust collection passage connection part 1831d, and the flange 1831da may be inserted into a groove 184a formed in the dust collection passage 184 to be fixed.

[0157] The case 1831 may be detachably coupled to the housing 110. The case 1831 is moved rearward and inserted into the housing 110 from the rear, and the flanges 1831ba, 1831ca, and 1831da formed on the first cleaner flow path connecting portion 1831b, the second cleaner flow path connecting portion 1831c, and the dust collection flow path connecting portion 1831d are inserted into and fixed to the grooves 181c, 182a, and 184a of the first cleaner flow path 181, the second cleaner flow path 182, and the dust collection flow path 184. Then, the case 1831 may be screw-coupled to the housing 110 by at least one screw.

[0158] The flow path switching module 183 includes a connection hose 1832. The connection hose 1832 is a component that selectively connects the dust collection flow path 184 to the first cleaner flow path 181 or the second cleaner flow path 182.

[0159] The connection hose 1832 has an inlet 1832a that moves along the inner circumferential surface of the case 1831 and is selectively coupled to either the first cleaner flow path connecting portion 1831b or the second cleaner flow path connecting portion 1831c. The outlet 1832b of the connection hose is coupled to the dust collection flow path connecting portion 1831d.

[0160] The connection hose 1832 may be made of a stretchable material. For example, the connection hose 1832 may be made of a rubber or resin material. This allows the connection hose 1832 to change shape during movement.

[0161] Alternatively, the connection hose 1832 may be wrinkled at least in a portion thereof, which may cause the connection hose 1832 to be structurally deformed.

[0162] An inlet 1832a of the connection hose 1832 is selectively connected to either a first cleaner flow path connection portion 1831b or a second cleaner flow path connection portion 1831c. As shown in Fig. 6, the connection hose 1832 can be connected to the first cleaner flow path connection portion 1831b to communicate the first cleaner flow path 181 and the dust collection portion 170. Alternatively, as shown in Fig. 9, the connection hose 1832 can be connected to the second cleaner flow path connection portion 1831c to communicate the second cleaner flow path 182 and the dust collection portion 170.

[0163] Inlet 1832a of connection hose 1832 moves along the inner circumferential surface of case 1831. Specifically, inlet 1832a of connection hose 1832 moves along the inner circumferential surface of case 1831 while being separated from case 1831 by a predetermined distance or more. Therefore, while connection hose 1832 moves along the inner circumferential surface of case 1831, there is an effect that sealer 1832c arranged at inlet 1832a of connection hose 1832 is not damaged.

[0164] An outlet 1832b of the connection hose 1832 is connected to the dust collection passage connecting portion 1831d. The outlet 1832b of the connection hose 1832 is fixedly connected to the dust collection passage connecting portion 1831d, and is always in communication with the dust trapping portion 170.

[0165] The flow passage switching module 183 includes a first link 1833. The first link 1833 is a component that transmits the power of the motor to the connection hose 1832 and moves the connection hose 1832.

[0166] The first link 1833 is rotatably connected to the case 1831 on one side and to the connection hose 1832 on the other side.

[0167] The first link 1833 rotates around a rotation shaft 1833a disposed on one side. The first link 1833 is rotatably coupled to the case 1831 via the rotation shaft 1833a of the first link 1833. Referring to FIG. 6, the first link 1833 is rotatably coupled to the case 1831 on the right side of the connection hose 1832.

[0168] The rotation shaft 1833a of the first link serves as the center of rotation for rotating the first link 1833. The rotation shaft 1833a of the first link extends from the first link 1833 toward the case 1831. The rotation shaft 1833a of the first link is rotatably coupled to the case 1831.

[0169] The first link 1833 extends in one direction from a rotation shaft 1833a of the first link, and a connection part 1833b with the connection hose 1832 is disposed at one end.

[0170] A connection portion 1833b of the first link is hinged to an inlet 1832a of the connection hose 1832. The first link 1833 connects to the connection hose 1832 via the connection portion 1833b of the first link. Thus, when the first link 1833 rotates, the connection hose 1832 can move.

[0171] 6, the first link 1833 extends to the left from the rotation shaft 1833a. The connection portion 1833b of the first link is disposed at the left end of the first link 1833. The connection portion 1833b of the first link may be connected to the left end of the inlet 1832a of the connection hose 1832.

[0172] The first link 1833 includes a gear portion 1833c.

[0173] The first link 1833 extends from the first link rotation shaft 1833a in the opposite direction to the connection portion 1833b, and the first link gear portion 1833c is disposed at the end. With reference to Fig. 6, the first link 1833 extends to the right from the first link rotation shaft 1833a, and the first link gear portion 1833c is disposed at the right end.

[0174] Gear teeth are formed on an end of the gear portion 1833c of the first link. The gear portion 1833c of the first link is connected to the gear portion 1836c of the drive cam. Specifically, the gear portion 1833c of the first link is engaged with the gear portion 1836c of the drive cam.

[0175] The first link includes a bulkhead 1833d.

[0176] The partition wall 1833d of the first link is a component that prevents the flow path switching module 183 from being separated when the connection hose 1832 is in a specific position. Specifically, when the connection hose 1832 is not connected to the first cleaner flow path connection portion 1831b and is connected to the second cleaner flow path portion 1831c, or when the connection hose 1832 is located between the first cleaner flow path portion 1831b and the second cleaner flow path portion 1831c, the partition wall 1833d prevents the flow path switching module 183 from being separated.

[0177] Partition 1833d of the first link is disposed on the rear surface of gear portion 1833c of the first link and extends radially outward from gear portion 1833c of the first link.

[0178] The partition wall 1833d of the first link is disposed on the rear surface of the gear portion 1833c of the first link. Therefore, the assembly including the case 1831 and the first link 1833 moves forward of the driving cam 1836 to be separated, but the partition wall 1833d gets caught by the gear portion 1836c of the driving cam, and the assembly is not separated.

[0179] The partition wall 1833d of the first link is disposed on a part of the gear portion 1833c of the first link. The partition wall 1833d of the first link covers a part of the gear portion 1833c.

[0180] The partition wall 1833d of the first link is disposed so as not to overlap with the gear portion 1836c of the drive cam when the flow path switching module 183 is separated. Referring to Fig. 6, the partition wall 1833d is disposed so as to overlap with the gear portion 1836c of the drive cam behind the gear portion 1836c of the drive cam, and the partition wall 1833d of the first link is caught by the gear portion 1836c of the drive cam and is not separated. On the other hand, referring to Fig. 9, the partition wall 1833d of the first link is not disposed so as to overlap with the gear portion 1836c of the drive cam, so that the flow path switching module 183 can be easily separated.

[0181] Specifically, when the connection hose 1832 is coupled to the first cleaner flow path connecting portion 1831b, the partition wall 1833d of the first link and the drive cam 1836 are not arranged to overlap each other, when the connection hose 1832 is coupled to the second cleaner flow path connecting portion 1831c, the partition wall 1833d of the first link and the drive cam 1836 are arranged to overlap each other, and when the connection hose 1832 is disposed between the first cleaner flow path connecting portion 1831b and the second cleaner flow path connecting portion 1831c, the partition wall 1833d of the first link and the drive cam 1836 are arranged to overlap each other. Therefore, since the flow path switching module 183 can be separated only when the first cleaner flow path connecting portion 1831b is closed, there is an effect that dust falling through the first flow path 181a during coupling or separation does not scatter.

[0182] The flow path switching module 183 includes a second link 1834. The second link 1834 is a component that moves the connection hose 1832 together with the first link 1833.

[0183] The second link 1834 is rotatably connected to the case 1831 on one side and to the connection hose 1832 on the other side.

[0184] The second link 1834 rotates around a rotation shaft 1834a disposed on one side. One side of the second link 1834 is rotatably coupled to the case 1831. The second link 1834 rotates around a rotation shaft 1834a disposed on one side. The rotation shaft 1834a of the second link may be disposed at an end of the second link 1834. Referring to FIG. 6, the second link 1834 is rotatably coupled to the case 1831 behind the connection hose 1832.

[0185] The rotation shaft 1834a of the second link serves as the center of rotation for rotating the second link 1834. The rotation shaft 1834a of the second link extends from the second link 1834 toward the case 1831. The rotation shaft 1834a of the second link is rotatably coupled to the case 1831.

[0186] The second link 1834 extends in one direction from a rotation shaft 1834a of the second link, and a connection portion 1834b with the connection hose 1832 is disposed at the end thereof.

[0187] The connection portion 1834b of the second link is hinged to the inlet 1832a of the connecting hose 1832. The second link 1834 connects to the connecting hose 1832 via the connection portion 1834b of the second link. Thus, when the second link 1834 rotates, the connecting hose 1832 can move.

[0188] One side of the second link 1834 is connected to the case 1831, and the other side of the second link 1834 is connected to the connection hose 1832. Specifically, one end of the second link 1834 serves as a rotating shaft 1834a and is connected to the case 1831. The other end of the second link 1834 serves as a connecting portion 1834b and is hingedly connected to an inlet 1832a of the connection hose 1832.

[0189] 6, the rotation shaft 1834a of the second link is disposed at the lower end of the second link 1834, and is rotatably coupled to the case 1831. The second link 1834 extends upward from the rotation shaft 1834a of the second link, and a connection part 1834b of the second link is disposed at the upper stage. The connection part 1834b of the second link may be connected to the right end of the inlet 1832a of the connection hose 1832.

[0190] 12 and 13, the rotation shaft 1833a of the first link is disposed away from the rotation shaft 1834a of the second link. As a result, the rotation shaft 1833a of the first link and the rotation shaft 1834a of the second link become two focal points, and the connection hose 1832 can move along an elliptical orbit. The elliptical orbit of the connection hose 1832 is a trajectory through which the center point of the inlet 1832a of the connection hose passes, as shown by a two-dot chain line in FIGS. 12 and 13. Therefore, while the inlet 1832a of the connection hose 1832 moves, the inlet 1832a of the connection hose 1832 can move a certain distance away from the case 1831.

[0191] When the connecting hose 1832 is connected to either the first vacuum cleaner flow path connection portion 1831b or the second vacuum cleaner flow path connection portion 1831c, it is in close contact with the inner surface of the case 1831, and when it moves from either the first vacuum cleaner flow path connection portion 1831b or the second vacuum cleaner flow path connection portion 1831c to the other, it is separated from the inner surface of the case 1831.

[0192] As shown in Fig. 6, in the first position, the connection hose 1832 is in close contact with the first cleaner flow path connection portion 1831b. As shown in Fig. 9 and Fig. 10, while the connection hose 1832 moves between the first cleaner flow path connection portion 1831b and the second cleaner flow path connection portion 1831c, the connection hose 1832 is separated from the inner peripheral surface of the case 1831. As shown in Fig. 11, in the second position, the connection hose 1832 is in close contact with the second cleaner flow path connection portion 1831c.

[0193] Therefore, the sealer 1832c of the connection hose 1832 is not damaged by friction or the like when moving between the first cleaner flow path connection part 1831b and the second cleaner flow path connection part 1831c.

[0194] At least one of the rotation shaft 1833 a of the first link and the rotation shaft 1834 a of the second link is disposed away from the central axis 1831 a of the case 1831 .

[0195] 12, the rotation shaft 1833a of the first link is disposed to the right of the central axis 1831a of the case 1831, and the rotation shaft 1834a of the second link is disposed below the central axis 1831a of the case 1831. With this arrangement, the path along which the connection part 1833b of the first link moves and the path along which the connection part 1834b of the second link moves are offset, and the inlet 1832a of the connection hose moves on an elliptical path. Therefore, the inlet 1832a of the connection hose can be spaced apart from the inner peripheral surface of the case 1831 by a predetermined distance or more during movement.

[0196] A first locus C1 formed by movement of the connection point between first link 1833 and connection hose 1832 intersects at least twice with an imaginary reference circle C0 that is concentric with the inner circumferential surface of case 1831. At this time, the connection point between first link 1833 and connection hose 1832 indicates connection portion 1833b of the first link.

[0197] 12 and 13, the first trajectory C1 and the reference circle C0 intersect at two points. With reference to Fig. 12, the connection part 1833b of the first link is disposed at the right intersection, which is the case when the connection hose 1832 is connected to the first cleaner flow path 181 as shown in Fig. 6. With reference to Fig. 13, the connection part 1833b of the first link is disposed at the left intersection, which is the case when the connection hose 1832 is connected to the second cleaner flow path 182 as shown in Fig. 11.

[0198] A second locus C2 formed by moving the connection point between the second link 1834 and the connection hose 1832 intersects with a virtual reference circle C0, which is concentric with the inner circumferential surface of the case 1831, at least twice. With reference to Figs. 12 and 13, the second locus C2 and the reference circle C0 intersect at two points. With reference to Fig. 12, the connection part 1834b of the second link is disposed at the right intersection, which corresponds to the case where the connection hose 1832 is connected to the first cleaner flow path 181 as shown in Fig. 6. With reference to Fig. 13, the connection part 1834b of the second link is disposed at the left intersection, which corresponds to the case where the connection hose 1832 is connected to the second cleaner flow path 182 as shown in Fig. 11.

[0199] In the flow path switching module 183, the radius of curvature of the inner peripheral surface of the case 1831 may be smaller than the radius of curvature formed by the path of the inlet 1832a of the connection hose 1832. The path along which the inlet 1832a of the connection hose 1832 moves may be formed in a shape similar to an ellipse, and the radius of curvature of the ellipse may be larger than the radius of curvature of the inner peripheral surface of the case 1831. With reference to Figures 12 and 13, the inner peripheral surface of the case 1831 is concentric with the reference circle C0, and the radius of curvature of the inner peripheral surface of the case 1831 can be regarded as R0. 12 and 13, the trajectory of inlet 1832a of connecting hose 1832 is an ellipse with its foci at rotation axis 1833a of the first link and rotation axis 1834a of the second link, and the radius of curvature formed by the trajectory of inlet 1832a of connecting hose 1832 is naturally larger than the radius of curvature of the inner surface of case 1831.

[0200] Since the radius of curvature of the ellipse is larger than the radius of curvature of the inner surface of case 1831, inlet 1832a of connection hose 1832 may be spaced apart inside the inner surface of case 1831 as it moves along the inner surface of case 1831.

[0201] The flow path switching module 183 includes a plurality of links, one side of which is rotatably coupled to the case 1831 and the other side of which is coupled to the connection hose 1832. The links may be a first link 1833 and a second link 1834.

[0202] At least one of the multiple links may have a radius of curvature of a trajectory along which an end portion connected to the case 1831 moves that is greater than a radius of curvature of the inner circumferential surface of the case 1831. With reference to FIGS. 12 and 13 , the radius of curvature R2 of the second trajectory may be greater than the radius of curvature of the inner circumferential surface of the case 1831, and the radius of curvature R1 of the first trajectory may be greater than the radius of curvature R2 of the second trajectory and the radius of curvature of the inner circumferential surface of the case 1831.

[0203] With reference to an imaginary line extending in the longitudinal direction of the connection hose 1832 , a connection portion 1833 b between the connection hose 1832 and the first link 1833 is disposed on the opposite side to a connection portion 1834 b between the connection hose 1832 and the second link 1834 .

[0204] 12 and 13, with respect to an imaginary line extending in the longitudinal direction of the connection hose 1832 as a reference, the connection portion 1833b of the first link is positioned to the left of the imaginary line, and the connection portion 1834b of the second link 1834 is positioned to the right.

[0205] With this arrangement, the inlet 1832a of the connection hose 1832 can move in a trajectory similar to an ellipse, and the sealer 1832c of the connection hose 1832 can move away from the inner circumferential surface of the case 1831. With reference to Figures 12 and 13, the trajectory of the inlet 1832a of the connection hose 1832 is shown by a two-dot chain line.

[0206] The length of the first link 1833 may be formed to be longer than the length of the second link 1834 .

[0207] When the flow path switching module 183 is viewed from one side, the first link 1833 may cross the second link 1834 .

[0208] The length of the first link 1833 is formed to be different from the length of the second link 1834, and the first link 1833 and the second link 1834 are arranged crosswise, so that the inlet 1832a of the connecting hose 1832 may be separated from the inner surface of the case 1831 while moving between the first cleaner flow path connection portion 1831b and the second cleaner flow path connection portion 1831c.

[0209] The flow passage switching module 183 includes a switching motor 1835 and a drive cam 1836 .

[0210] The switching motor 1835 is disposed on one side of the case 1831 and generates power to move the connection hose 1832 .

[0211] The switching motor 1835 may be a bidirectional motor that can rotate in both directions. That is, the switching motor 1835 can rotate clockwise or counterclockwise. For example, when the switching motor 1835 rotates clockwise from FIG. 6 to FIG. 9, the connecting hose 1832 moves to the second cleaner flow path connection portion 1831c. Conversely, when the switching motor 1835 rotates counterclockwise from FIG. 9 to FIG. 6, the connecting hose 1832 moves to the first cleaner flow path connection portion 1831b.

[0212] The drive cam 1836 is coupled to the switching motor 1835 and transmits power to the first link 1833 .

[0213] The driving cam 1836 is coupled to the switching motor 1835 , includes a sensing portion 1836 b protruding on one side, and transmits power to the connection hose 1832 .

[0214] The drive cam 1836 is coupled to the shaft of the switching motor 1835. As a result, the drive cam 1836 rotates integrally with the shaft of the switching motor 1835.

[0215] The drive cam 1836 includes a gear portion 1836c.

[0216] The gear portion 1836c of the driving cam may be formed to protrude radially outward.

[0217] Gear portion 1836c of the drive cam is connected to gear portion 1833c of the first link. Gear portion 1836c of the drive cam and gear portion 1833c of the first link are gear-connected. Therefore, when drive cam 1836 rotates clockwise, first link 1833 rotates counterclockwise, and when drive cam 1836 rotates counterclockwise, first link 1833 rotates clockwise.

[0218] The flow path switching module 183 includes a sensing unit 1836 b and a position sensor 1837 and is capable of determining the position of the connecting hose 1832 .

[0219] The sensing portion 1836b is formed on the drive cam 1836 and protrudes radially outward from the shaft of the switching motor 1835.

[0220] The position sensor 1837 is disposed on one side of the sensing portion 1836 b and is turned on and off by the sensing portion 1836 b to sense the position of the connecting hose 1832 .

[0221] The position sensor 1837 includes a microswitch. The microswitch is disposed on one side of the sensing portion 1836b. Therefore, when the microswitch is pressed by the sensing portion 1836b and turned on, a signal is generated. Conversely, when the microswitch is not pressed by the sensing portion 1836b, the microswitch is turned off and no signal is generated.

[0222] The signal is transmitted to a controller, which can determine the position of the connecting hose 1832 based on the presence or absence of the signal and the time of transmission of the signal.

[0223] The sensing portion 1836b may be configured with multiple surfaces.

[0224] 6, the first surface 1836ba pressurizes and turns on the position sensor 1837. Since the first surface 1836ba protrudes radially outward further than the second surface 1836bb or the fourth surface 1836bd described below, it presses the microswitch of the position sensor 1837 to generate a signal.

[0225] 9, the second surface 1836bb turns off the position sensor 1837. The second surface 1836bb is adjacent to the first surface 1836ba. Since the second surface 1836bb does not protrude radially outward beyond the first surface 1836ba or the third surface 1836bc, the microswitch of the position sensor 1837 is not pressed and no signal is generated.

[0226] 10, the third surface 1836bc pressurizes the position sensor 1837 to turn it on. The third surface 1836bc is disposed between the second surface 1836bb and the fourth surface 1836bd. Since the third surface 1836bc protrudes radially outward further than the second surface 1836bb or the fourth surface 1836bd, it presses the microswitch of the position sensor 1837 to generate a signal.

[0227] 11, the fourth surface 1836bd turns off the position sensor 1837. The fourth surface 1836bd is adjacent to the third surface 1836bc. Since the fourth surface 1836bd does not protrude radially outward beyond the first surface 1836ba or the third surface 1836bc, the microswitch of the position sensor 1837 is not pressed and no signal is generated.

[0228] The first surface 1836ba protrudes radially outward, and its outer end presses a switch of the position sensor 1837 to turn on the position sensor 1837. The second surface 1836bb is disposed on one side of the first surface 1836ba, protrudes radially outward less than the first surface 1836ba, and turns off the position sensor 1837.

[0229] Specifically, the second surface 1836bb and the fourth surface 1836bd protrude less radially outward than the first surface 1836ba or the third surface 1836bc. Therefore, when the first surface 1836ba or the third surface 1836bc contacts the switch of the position sensor 1837, the switch of the position sensor 1837 is pressed to turn on the position sensor 1837, and the position sensor 1837 transmits a first signal to the control unit 400. Conversely, when the second surface 1836bb or the fourth surface 1836bd connects to the switch of the position sensor 1837, the switch of the position sensor 1837 is not pressed, the position sensor 1837 is turned off, and the position sensor 1837 transmits a second signal different from the first signal to the control unit 400, or does not transmit a signal to the control unit 400.

[0230] The radial protrusion length of the first surface 1836ba may be the same as the radial protrusion length of the third surface 1836bc. Similarly, the radial protrusion length of the second surface 1836bb may be the same as the radial protrusion length of the fourth surface 1836bd.

[0231] The first surface 1836ba protrudes radially outward and extends less than a predetermined length in the circumferential direction to turn on the position sensor 1837. The third surface 1836bc is disposed on one side of the first surface 1836ba, protrudes radially outward, and extends more than a predetermined length in the circumferential direction to turn on the position sensor 1837.

[0232] Specifically, the circumferential length of the first surface 1836ba and the circumferential length of the fourth surface 1836bd are less than a predetermined length, and the circumferential length of the second surface 1836bb and the circumferential length of the third surface 1836bc exceed the predetermined length.

[0233] 19, when the driving cam 1836 rotates, the first surface 1836ba contacts the position sensor 1837 for a time period ΔT1, the second surface 1836bb contacts the position sensor 1837 for a time period ΔT2, the third surface 1836bc contacts the position sensor 1837 for a time period ΔT3, and the fourth surface 1836bd contacts the position sensor 1837 for a time period ΔT4. At this time, ΔT1 and ΔT3 are less than the predetermined time period, and ΔT2 and ΔT4 exceed the predetermined time period.

[0234] The circumferential length of the second surface 1836bb may be the same as the circumferential length of the third surface 1836bc, that is, ΔT2 and ΔT3 may be the same.

[0235] The second surface 1836bb is disposed between the first surface 1836ba and the third surface 1836bc, and protrudes less radially outward than the first surface 1836ba to turn off the position sensor 1837. The second surface 1836bb extends in the circumferential direction beyond a predetermined length. With such an arrangement, the position sensor 1837 can emit a signal corresponding to a square wave. The control unit 400 can determine the position of the connection hose 1832 based on the strength and length of the signal.

[0236] 12 and 13, with reference to an imaginary line extending in the longitudinal direction of the connection hose 1832, the rotation shaft 1833a which is the connection part between the first link 1833 and the case 1831 is disposed on the opposite side to the connection part 1833b between the first link 1833 and the connection hose 1832. In this case, the rotation shaft 1833a of the first link is disposed on the right side of the connection hose 1832, and the length from the rotation shaft 1833a of the first link to the connection part 1833b of the first link may be longer than the length from the rotation shaft 1833a of the first link to the end of the gear part 1833c of the first link. This maximizes the displacement of the connection part 1833b of the first link when the first link 1833 rotates, and increases the movement range of the connection hose 1832.

[0237] The flow path switching module 183 may further include an elastic member 1838. The elastic member 1838 is a component that assists the movement of the inlet 1832a of the connection hose 1832.

[0238] The elastic member 1838 is connected to the case 1831 on one side and to the second link 1834 on the other side.

[0239] The elastic member 1838 may be a torsion spring.

[0240] 6, the elastic member 1838 is tensioned when the connection hose 1832 is coupled to the first cleaner flow path connector 1831b, and, referring to FIG 11, the elastic member 1838 is compressed when the connection hose 1832 is coupled to the second cleaner flow path connector 1831c.

[0241] The elastic member 1838 assists the connection hose 1832 to move from the second cleaner flow path connection part 1831c to the first cleaner flow path connection part 1831b. Referring to FIG. 6, the first link 1833 pulls the left end of the connection hose 1832 to the left and can easily guide it to the second cleaner flow path connection part 1831c. In contrast, referring to FIG. 11, the first link 1833 pushes the left end of the connection hose 1832 to the right and guides it to the first cleaner flow path connection part 1831b, but in this process, a problem may occur in which the right end of the connection hose 1832 gets caught in the second cleaner flow path connection part 1831c. At this time, the elastic member 1838 pulls the connection part 1834b of the second link to the right, so that the right end of the connection hose 1832 is easily separated to the right side of the second cleaner flow path connection part 1831c.

[0242] The flow path switching module 183 includes a stop sensor 1839 and a stopper 1836d, and can block the connection hose 1832 from moving beyond a limit position.

[0243] 6, the stopper 1836d is disposed on one side of the driving cam 1836. Specifically, the stopper 1836d may be disposed adjacent to one side of the first surface 1836ba of the sensing portion 1836b.

[0244] The stopper 1839d protrudes in the radial direction.

[0245] The stop sensor 1839 may be located adjacent to the drive cam 1836 .

[0246] The stop sensor 1839 may be an infrared sensor or a contact sensor. When the stopper 1836d is disposed close to the stop sensor 1839, the stop sensor 1839 can detect the position of the stopper 1836d and generate a signal. The generated signal is transmitted to the control unit 400.

[0247] When the control unit 400 receives a signal from the stop sensor 1839, it can determine that the connection hose 1832 is completely coupled to the first cleaner flow path connection portion 1831b and can stop the operation of the switching motor 1835.

[0248] The flow path switching module 183 according to the present invention may be detachably coupled to the housing 110. A chamber in which the flow path switching module 183 can be disposed is formed in the housing 110, and the flow path switching module 183 is disposed in the chamber and connected to the first flow path 181, the second flow path 182, and the dust collection flow path 184.

[0249] Since dust flows with the air in the flow path switching module 183, the flow path switching module 183 may become dirty with dust or may malfunction due to dust getting into the flow path switching module 183. Therefore, the flow path switching module 183 needs to be easy to separate and clean. According to the present invention, the flow path switching module 183 can be easily attached to or detached from the housing 110, which has the effect of making the separation and cleaning easy.

[0250] The flow path switching module 183 can be coupled to or separated from the housing 110 while sliding relative to the housing 110. Taking Figs. 21 to 23 as examples, the flow path switching module 183 can be coupled to or separated from the housing 110 by moving forward or backward.

[0251] 16 to 18, the flow path switching module 183 includes flanges 1831ba, 1831ca, and 1831da. The first cleaner flow path 181, the second cleaner flow path 182, and the dust collection flow path 184 include flange grooves 181c, 182a, and 184a. When the flanges 1831ba, 1831ca, and 1831da are inserted into the flange grooves 181c, 182a, and 184a, the flow path switching module 183 is coupled to the housing 110.

[0252] The first cleaner flow passage connection portion 1831b includes a flange 1831ba. The flange 1831ba is formed at an end of the first cleaner flow passage connection portion 1831b. The flange 1831ba is formed to extend radially outward from the end of the first cleaner flow passage connection portion 1831b. The flange 1831ba is inserted into a flange groove 181c formed at an end of the first cleaner flow passage 181.

[0253] A flange groove 181c is formed at an end of the first cleaner flow passage 181. Specifically, the flange groove 181c is formed at a lower end of the first cleaner flow passage 181a. The flange groove 181c is formed by being recessed outward from an inner circumferential surface of the first cleaner flow passage 181. The flange groove 181c may be formed in a C-shape with an open front. Thus, the flange 1831ba of the first cleaner flow passage connection part may move rearward from the front portion and be inserted into the flange groove 181c of the first cleaner flow passage.

[0254] The second cleaner flow passage connection portion 1831c includes a flange 1831ca. The flange 1831ca is formed at an end of the second cleaner flow passage connection portion 1831c. The flange 1831ca is formed to extend radially outward from the end of the second cleaner flow passage connection portion 1831c. The flange 1831ca is inserted into a flange groove 182a formed at an end of the second cleaner flow passage 182.

[0255] A flange groove 182a is formed at an end of the second cleaner flow passage 182. The flange groove 182a is formed by being recessed outward from an inner circumferential surface of the second cleaner flow passage 182. The flange groove 182a may be formed in a C-shape with an open front. Thus, a flange 1831ca of the second cleaner flow passage connection part may move rearward from a front portion and be inserted into the flange groove 182a of the second cleaner flow passage.

[0256] The dust collection passage connection portion 1831d includes a flange 1831da. The flange 1831da is formed at an end of the dust collection passage connection portion 1831d. The flange 1831da is formed to extend radially outward from the end of the dust collection passage connection portion 1831d. The flange 1831da is inserted into a flange groove 184a formed at an end of the dust collection passage 184.

[0257] A flange groove 184a is formed at an end of the dust collection passage 184. The flange groove 184a is formed by being recessed outward from the inner circumferential surface of the dust collection passage 184. The flange groove 184a may be formed in a C-shape with an open front surface. Thus, the flange 1831da of the dust collection passage connection part can move rearward from the front portion and be inserted into the flange groove 184a of the dust collection passage.

[0258] The cleaner station includes a flow path switching module cover 185. The flow path switching module cover 185 is a component that covers at least a portion of the flow path switching module 183.

[0259] The flow path switching module cover 185 is disposed on one side of the flow path switching module 183 and is coupled to the housing 110. Specifically, the flow path switching module cover 185 is rotatably coupled to the housing 110 at one side.

[0260] 3, 4, and 21 to 23, when one cover of the housing 110 is opened, the flow path switching module cover 185 is exposed. When the flow path switching module cover 185 is then rotated in one direction and opened, the flow path switching module 183 is exposed, and the flow path switching module 183 can be separated.

[0261] The flow path switching module cover 185 prevents dust remaining in the flow path switching module 183 from scattering outside the housing 110.

[0262] Referring to FIG. 14, the flow path switching module cover 185 may be composed of a rotating shaft 1851, a lower cover 1852, and an upper cover 1853.

[0263] A rotation shaft 1851 of the flow path switching module cover 185 is disposed at a joint with the housing 110. The rotation shaft 1851 of the flow path switching module cover is disposed at the lower end of the lower cover 1852. The flow path switching module cover 185 rotates with the lower section at the center while the upper section moves.

[0264] The lower cover 1852 of the flow path switching module cover extends upward on a rotation axis 1851 of the flow path switching module cover and includes an inclined surface.

[0265] The lower cover 1852 of the flow path switching module cover may extend upward at the rotation axis 1851 and be formed as an inclined surface facing the flow path switching module 183.

[0266] The upper cover 1853 of the flow path switching module cover extends upward above the lower cover 1852, includes a vertical surface perpendicular to the ground, and has one side detachably fixed to the housing 110.

[0267] The upper cover 1853 of the flow path switching module can cover the open front surface of the case 1831 .

[0268] The flow path switching module cover 185 includes a cover coupling portion 1856. The cover coupling portion 1856 may be coupled to one side of the housing 110 by a hook.

[0269] The cover connection portion 1856 may be disposed at the upper end of one side of the upper cover 1853 .

[0270] The flow path switching module cover 185 includes a cover handle 1857. The cover handle 1857 is gripped by a user.

[0271] A cover handle 1857 may be located on one side of the cover joint 1856 .

[0272] At least a portion of the flow path switching module cover 185 comes into close contact with the first link 1833. Specifically, the support member of the flow path switching module cover 185 comes into close contact with the first link 1833 and can support the first link 1833 when the first link 1833 rotates.

[0273] The passage switching module cover 185 includes a first link rotating shaft support member 1854. The first link rotating shaft support member 1854 supports the rotating shaft 1851 of the first link.

[0274] The first link rotating shaft support member 1854 protrudes toward the first link 1833, and its end supports the rotating shaft 1851 of the first link.

[0275] The first link rotating shaft support member 1854 may be formed in a C-shape with one side open. The first link rotating shaft support member 1854 may extend in the circumferential direction of the rotating shaft 1851 of the first link.

[0276] The first link rotation shaft support member 1854 may extend along the gear portion 1833c of the first link.

[0277] The first link rotation shaft support member 1854 may be disposed in the lower cover 1852. The first link rotation shaft support member 1854 may be disposed below the first link connection portion support member 1855.

[0278] The flow path switching module cover 185 includes a first link connection portion support member 1855. The first link connection portion support member 1855 supports the connection portion 1833b of the first link.

[0279] The first link connection portion support member 1855 protrudes toward the first link 1833, and its end portion supports the connection portion 1833b of the first link.

[0280] The first link connection portion support member 1855 extends along a first locus C1 formed by movement of the connection portion 1833b between the first link and the connection hose. The first link connection portion support member 1855 may be disposed concentrically with the first locus C1. Referring to Figures 3 and 4, the first link connection portion support member 1855 may be formed in an arc shape.

[0281] The connection hose 1832 and the first link 1833 are coupled to the case 1831 to form a single assembly, which may be coupled or separated as a single unit to the housing 110. Referring to Fig. 12, the case 1831, the connection hose 1832, the first link 1833, and the second link 1834 may form a single assembly. The assembly may be assembled before being coupled to the housing 110, or may be treated as a single component and coupled or separated to the housing 110.

[0282] 3 and 4, the assembly may be coupled to the housing 110 by sliding the respective flanges into the flange grooves. After the assembly is coupled to the housing 110, it may be more firmly fixed by screws or the like.

[0283] The flow path switching module 183 is detachably coupled to the housing 110, and is separated when connected to either the first cleaner flow path 181 or the second cleaner flow path 182. Referring to Fig. 6, the flow path switching module 183 is separated when the connection hose 1832 is connected to the first cleaner flow path 181. In contrast, referring to Fig. 9, when the connection hose 1832 is connected to the second cleaner flow path 182, the partition wall 1833d is caught by the gear portion 1836c of the driving cam, and cannot be separated.

[0284] The control unit 400 may be configured with a printed circuit board and elements mounted on the printed circuit board.

[0285] The control unit 400 may determine the position of the connection hose 1832 based on the length of the signal received from the position sensor 1837. Specifically, the control unit 400 may determine whether the connection hose 1832 is correctly connected to either the first cleaner flow path connection portion 1831b or the second cleaner flow path connection portion 1832c, and may drive the dust collection motor 191 if it is determined that the connection is correctly made, and may stop driving the dust collection motor 191 if it is determined that the connection is not correctly made.

[0286] When the control unit 400 receives a first signal from the position sensor 1837 continuously for a predetermined time or more, it may determine that the connection hose 1832 is connected to the first cleaner flow path 181. When the control unit 400 receives a second signal from the position sensor 1837 continuously for a predetermined time or more, it may determine that the connection hose 1832 is coupled to the second cleaner flow path 182.

[0287] Here, the intensity of the second signal may be smaller than the intensity of the first signal, or the intensity of the second signal may be zero.

[0288] Referring to FIG. 6, when the first surface 1836ba contacts the position sensor 1837, the position sensor 1837 transmits a first signal to the control unit 400, and when the control unit 400 receives the first signal continuously for a predetermined period of time or more, it can determine that the connection hose 1832 is connected to the first vacuum cleaner flow path connection portion 1831b.

[0289] 11, when the fourth surface 1836bd contacts the position sensor 1837, the position sensor 1837 emits a second signal, and when the control unit 400 receives the second signal continuously for a predetermined time or more, the control unit 400 can determine that the connection hose 1832 is coupled to the second cleaner flow path connector 1831c. Here, the intensity of the second signal may be 0, and in this case, the control unit 400 can determine that the connection hose 1832 is coupled to the second cleaner flow path connector 1831c when the control unit 400 cannot receive the signal continuously for a predetermined time or more.

[0290] When the control unit 400 receives either the first signal or the second signal, it may determine that it is coupled to either the first cleaner flow path connection part 1831b or the second cleaner flow path connection part 1831c.

[0291] 19 is a diagram showing a signal generated by the position sensor 1837 while the connection hose 1832 moves from the first cleaner flow path connection portion 1831b to the second cleaner flow path connection portion 1832c, and the process proceeds in the order of FIG. 6, FIG. 9, FIG. 10, and FIG. 11. At this time, the control unit 400 can determine that the connection hose 1832 is coupled to the second cleaner flow path connection portion 1831c because the first signal is transmitted twice from the position sensor 1837 when the position sensor 1837 contacts the first surface 1836ba and the third surface 1836bc before the connection hose 1832 is coupled to the second cleaner flow path connection portion 1831c.

[0292] Fig. 20 is a diagram showing a signal generated by the position sensor 1837 while the connection hose 1832 moves from the second cleaner flow path connection portion 1831c to the first cleaner flow path connection portion 1831b, and the process proceeds in the order of Fig. 11, Fig. 10, Fig. 9, and Fig. 6. At this time, the control unit 400 receives a signal twice from the position sensor 1837 when the position sensor 1837 contacts the fourth surface 1836bd and the second surface 1836bb before the connection hose 1832 is connected to the first cleaner flow path connection portion 1831b, and therefore, can determine that the connection hose 1832 is connected to the first cleaner flow path connection portion 1831b.

[0293] If the first signal reception time and the second signal reception time are the same before receiving the final signal, the control unit 400 can determine that the connection hose 1832 is connected to either the first cleaner flow path connection portion 1831b or the second cleaner flow path connection portion 1831c.

[0294] 19, when the connection hose 1832 is coupled to the second cleaner flow path connector 1831c, a second signal is generated as a final signal. If the first signal receiving time ΔT3 and the second signal receiving time ΔT2 are equal before receiving the second signal, the control unit 400 may determine that the connection hose 1832 is coupled to the second cleaner flow path connector 1831c.

[0295] 20, when the connection hose 1832 is coupled to the first cleaner flow path connector 1831b, a first signal is generated as a final signal. If the second signal receiving time ΔT2 and the third signal receiving time ΔT3 are the same before receiving the first signal, the control unit 400 may determine that the connection hose 1832 is coupled to the first cleaner flow path connector 1831b.

[0296] When the control unit 400 receives a signal from the position sensor 1837 and a signal from the stop sensor 1839 at the same time, it can determine that the connection hose 1832 is connected to either the first cleaner flow path connection portion 1831b or the second cleaner flow path connection portion 1831c.

[0297] 6 and 20, in the final position, the connection hose 1832 is coupled to the first cleaner flow path connector 1831b, and the position sensor 1837 transmits a first signal to the control unit 400. Also, the stop sensor 1839 detects that the stopper 1836d is approaching and transmits a signal to the control unit 400. The control unit 400 receives the first signal from the position sensor 1837 and a signal from the stop sensor 1839 at the same time, and can determine that the connection hose 1832 is coupled to the first cleaner flow path connector 1831b.

[0298] According to the present invention, there is an advantage that the position of the connection hose 1832 and whether or not it is connected can be easily determined by one driving cam 1836 and one microswitch 1837 (position sensor).

[0299] Although the present invention has been described in detail above through specific embodiments, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto. It is clear that the present invention can be modified or improved by a person having ordinary knowledge in the relevant field within the technical concept of the present invention.

[0300] All simple variations and modifications of the present invention belong to the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims. [Explanation of symbols]

[0301] 10: Vacuum Cleaner System 100: Vacuum cleaner station 110: Housing 170: Dust collection section 180: Flow path section 181: 1st vacuum cleaner flow path 182:Second vacuum cleaner flow path 183: Stream switching module 1831: Case 1831a: Central axis 1831b: First vacuum cleaner flow path connection 1831c: Second vacuum cleaner flow path connection 1831d: Dust collection flow path connection part 1832: Connection hose 1832a: Entrance 1832b:Exit 1832c: Sealer 1833: First link 1833a: Rotating shaft 1833b: Connection 1833c: Gear section 1833d: Bulkhead 1834: Second link 1834a: Rotating shaft 1834b: Connection 1835: Switching motor 1836: Drive cam 1837: Position sensor 1838: Elastic member 1839: Stop sensor 184: Dust collection channel 185: Flow path switching module cover 190: Dust suction module 191: Dust collection motor 200: 1st vacuum cleaner 210: Main unit 220: Dustbin 230: Battery housing 240: Battery 250: Extension tube 260: Cleaning module 300:Second vacuum cleaner 400: Control unit

Claims

1. a housing defining an outer shape, to which at least one of the first cleaner or the second cleaner is coupled, and defining a space therein; a first cleaner flow passage disposed within the housing and connected to a bin of the first cleaner; a second cleaner flow passage disposed within the housing and connected to a bin of the second cleaner; a flow path switching module that selectively connects a dust collector disposed in the housing to the first cleaner flow path or the second cleaner flow path, The flow path switching module includes: a case having an internal space, the case including a first cleaner flow path connection portion connected to the first cleaner flow path and a second cleaner flow path connection portion connected to the second cleaner flow path; a connection hose having an inlet that moves along an inner circumferential surface of the case and selectively connects to either the first cleaner flow path connection portion or the second cleaner flow path connection portion; a first link rotatably connected to the case, the first link having an end connected to one side of the connection hose; a second link rotatably coupled to said case and having an end coupled to the other side of said connecting hose.

2. The connection hose is The cleaner station of claim 1 , wherein the cleaner station is spaced from an inner circumferential surface of the case while moving from one of the first cleaner flow path connection portion and the second cleaner flow path connection portion to the other.

3. At least one of the rotation shaft of the first link and the rotation shaft of the second link is The vacuum cleaner station of claim 1 , wherein the vacuum cleaner station is spaced apart from a central axis of the case.

4. The first trajectory formed by the movement of the end of the first link is 2. The vacuum cleaner station of claim 1, wherein the vacuum cleaner station intersects an imaginary reference circle that is concentric with the inner circumferential surface of the case at least twice.

5. The second locus formed by the movement of the end of the second link is 2. The vacuum cleaner station of claim 1, wherein the vacuum cleaner station intersects an imaginary reference circle that is concentric with the inner circumferential surface of the case at least twice.

6. The flow path switching module includes: The radius of curvature of the inner circumferential surface of the case is 2. The cleaning station of claim 1, wherein the radius of curvature is smaller than the radius of curvature formed by the trajectory of the inlet of the connecting hose.

7. Based on an imaginary line extending in the longitudinal direction of the connection hose, The connection portion between the first link and the case includes The vacuum cleaner station according to claim 1 , disposed on an opposite side to a connection between the first link and the connecting hose.

8. The length of the first link is 2. The vacuum cleaner station of claim 1, wherein the length of said first link is greater than the length of said second link.

9. The flow path switching module includes: When viewed from one side, The vacuum cleaner station of claim 1 , wherein the first link intersects with the second link.

10. The flow path switching module includes: One side is connected to the case, 2. The vacuum cleaner station of claim 1, further comprising a resilient member the other side of which connects to said second link.

11. The flow path switching module includes: A switching motor is disposed on one side of the case and generates power for moving the connection hose; a drive cam coupled to said switching motor and transmitting said power to said first link.

12. The first link is A gear portion having gear teeth formed on an end portion thereof, The drive cam is 12. The cleaning station of claim 11, including a gear portion connecting to a gear portion of the first link.

13. The drive cam is A sensing portion protruding radially outward from a shaft of the switching motor, The flow path switching module includes: The vacuum cleaner station of claim 11, further comprising a position sensor disposed on one side of the sensing unit, turned on and off by the sensing unit, and configured to sense a position of the connecting hose.

14. The sensing unit is a first surface for pressing and turning on the position sensor; A second surface adjacent to the first surface, the second surface turning off the position sensor.

15. a housing defining an outer shape, to which at least one of the first cleaner or the second cleaner is coupled, and defining a space therein; a first cleaner flow passage disposed within the housing and connected to a bin of the first cleaner; a second cleaner flow passage disposed within the housing and connected to a bin of the second cleaner; a flow path switching module that selectively connects a dust collector disposed in the housing to the first cleaner flow path or the second cleaner flow path, The flow path switching module includes: a case having a first cleaner flow path connection portion connected to the first cleaner flow path and a second cleaner flow path connection portion connected to the second cleaner flow path; a connection hose having an inlet that moves along an inner circumferential surface of the case and selectively connects to either the first cleaner flow path connection portion or the second cleaner flow path connection portion; The connection hose is a cleaner station that is spaced from an inner circumferential surface of the case while moving from one of the first cleaner flow path connection portion and the second cleaner flow path connection portion to the other;

16. The flow path switching module includes:

16. The vacuum cleaner station of claim 15, including a plurality of links rotatably coupled to the case and having ends coupled to the connecting hoses.

17. At least one of the plurality of links is 17. The vacuum cleaner station of claim 16, wherein the radius of curvature of the path along which the end moves is greater than the radius of curvature of the inner circumferential surface of the case.

Images