Blower device and cleaner comprising same

Abstract

A vacuum cleaner according to an embodiment of the present disclosure comprises: a cleaner body comprising a suction fan which sucks in external air, and a suction motor which rotationally drives the suction fan; and a blower device which can be coupled to or detached from the cleaner body and discharges the sucked-in air, wherein the blower device comprises: a connector electrically connected to the cleaner body; a blower motor electrically connected to the cleaner body via the connector; a blower fan which is rotated by the driving of the blower motor and discharges sucked-in external air; a first inlet forming an opening for sucking in the external air into the blower fan; and a discharge portion forming an opening for discharging the sucked-in air. The blower motor can be rotationally driven by power supplied from the cleaner body via the connector.

Description

Blower device and vacuum cleaner including same

[0001] One embodiment disclosed in this document relates to a blower device and a vacuum cleaner including the same.

[0002] A cordless vacuum cleaner is a type of vacuum cleaner that recharges its built-in battery without the need for a corded outlet. Cordless vacuum cleaners include a suction motor that generates suction. The suction generated by the motor draws in dust and other foreign substances along with the air through the vacuum head (brush), separating these foreign substances from the air and collecting them.

[0003] Recently, the types of vacuum cleaner heads (brushes) that attach to the main body of cordless vacuum cleaners have become increasingly diverse. Cordless vacuum cleaner brushes can be broadly divided into main brushes, used for floor cleaning, and auxiliary brushes for specialized purposes. To accommodate a wider range of cleaning environments, these auxiliary brushes are becoming more specialized.

[0004] Various types of auxiliary brushes may include mop brushes, bedding brushes, pet brushes, crevice brushes for cleaning tight areas, and blower devices.

[0005] Meanwhile, as an example of an auxiliary brush, a blower device is a device that discharges a gas such as air at a predetermined pressure, and can blow out foreign substances located in narrow areas or areas that are difficult for a user to reach. The blower device can be arranged to be combined with or detachable from the main body of the cordless cleaner. The cordless cleaner sucks in foreign substances blown by the blower device into a dust bin connected to the main body, so that the user can easily remove foreign substances accumulated in a predetermined area.

[0006] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0007] A vacuum cleaner according to one embodiment of the present disclosure may provide a blower device that sucks in external air, generates compressed air at a predetermined pressure, and discharges the compressed air.

[0008] According to one embodiment of the present disclosure, a cleaner may include a cleaner body including a suction fan configured to suck in external air by being driven to rotate, and a suction motor configured to drive the suction fan to rotate, and a blower device configured to be coupled or detached from the cleaner body and configured to suck in external air and discharge the sucked air. The blower device may include a connector formed to be electrically connected to the cleaner body, a blower motor electrically connected to the cleaner body through the connector, a blower fan configured to be rotated by driving the blower motor and to discharge the sucked external air, a first inlet forming an opening through which external air is sucked into the blower fan, and a discharge portion forming an opening through which the sucked air is discharged. The blower motor may be configured to be driven to rotate by power supplied from the cleaner body through the connector.

[0009] A cleaner according to one embodiment of the present disclosure may include a cleaner body including a suction fan configured to suck in external air by being driven to rotate, a suction motor configured to drive the suction fan to rotate, and a blower device configured to be coupled or detachably arranged with the cleaner body and configured to suck in external air and discharge the sucked air. The blower device may include a turbine fan configured to rotate by sucking in outside air by a suction force generated by the motor, a turbine-side inlet forming an opening for sucking outside air into the inside of the turbine fan, a blower fan connected to the turbine fan by a rotating shaft and configured to rotate together in response to the rotation of the turbine fan, a blower-side inlet forming an opening for sucking outside air into the inside of the blower fan, a discharge portion forming an opening for discharging outside air sucked into the blower-side inlet by the blower fan, an extension pipe arranged to surround the discharge portion and formed so as to have one side open, and a bypass suction path forming a path for air sucked into the extension pipe to flow.

[0010] However, the problem to be solved in this disclosure is not limited to the problem mentioned above, and may be determined in various ways without departing from the spirit and scope of this disclosure.

[0011] A vacuum cleaner according to one embodiment of the present disclosure can easily blow away foreign substances in areas that cannot be reached by a user by discharging compressed air at a predetermined pressure.

[0012] A vacuum cleaner according to one embodiment of the present disclosure may provide a blower device that can be easily attached or detached by replacing the suction head.

[0013] A vacuum cleaner according to one embodiment of the present disclosure can realize product weight reduction by including a blower device that receives power from the vacuum cleaner body without a separate power source.

[0014] FIG. 1 is a perspective view of a vacuum cleaner according to one embodiment of the present disclosure.

[0015] FIG. 2A is a perspective view of a vacuum cleaner with a blower device coupled to an extension tube according to one embodiment of the present disclosure.

[0016] FIG. 2b is a perspective view of a vacuum cleaner with a blower device coupled to a vacuum cleaner body according to one embodiment of the present disclosure.

[0017] FIG. 3 is a perspective view showing the appearance of a blower device according to one embodiment of the present disclosure.

[0018] FIG. 4 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0019] FIG. 5 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0020] FIG. 6 is a perspective view showing the appearance of a blower device according to one embodiment of the present disclosure.

[0021] FIG. 7 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0022] FIG. 8 is a cross-sectional side view of a blower device according to one embodiment of the present disclosure.

[0023] FIG. 9 is a perspective view showing the appearance of a blower device according to one embodiment of the present disclosure.

[0024] FIG. 10 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0025] FIG. 11 is a cross-sectional side view of a blower device according to one embodiment of the present disclosure.

[0026] FIG. 12 is a perspective view showing the appearance of a blower device according to one embodiment of the present disclosure.

[0027] FIG. 13 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0028] FIG. 14 is a side cross-sectional view of a blower device according to one embodiment of the present disclosure.

[0029] FIG. 15 is a front view of a coupling nozzle according to one embodiment of the present disclosure.

[0030] The embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0031] In this document, unless otherwise stated, the “front-back direction,” “left-right direction,” and “up-down direction” in this document may be defined based on the direction in which the vacuum cleaner (e.g., the vacuum cleaner (1) of FIG. 1) is placed. For example, when the extension tube (e.g., the extension tube (30) of FIG. 1) of the vacuum cleaner (1) is placed vertically, the direction in which the dust bin (e.g., the dust bin (20) of FIG. 1) included in the vacuum cleaner (1) faces may be defined as the front of the vacuum cleaner (1), and the direction in which the battery mounting portion (e.g., the battery mounting portion (12) of FIG. 1) of the vacuum cleaner (1) faces may be defined as the rear of the vacuum cleaner (1). For example, when the extension tube (30) of the vacuum cleaner (1) is arranged in a vertical direction, the direction in which the control panel of the vacuum cleaner (1) (e.g., the control panel (16) of FIG. 1) faces can be defined as the upper side of the vacuum cleaner (1), and the direction in which the suction head of the vacuum cleaner (1) (e.g., the suction head (40) of FIG. 1) faces can be defined as the lower side of the vacuum cleaner (1). For example, when the dust bin (20) of the vacuum cleaner (1) is viewed from the front, the left side of the vacuum cleaner (1) can be defined as the left side, and the right side of the vacuum cleaner (1) can be defined as the right side.

[0032] However, in this document, “front-back direction”, “left-right direction”, and “up-down direction” may be used based on the drawings shown, and the shape and position of each component are not limited thereby.

[0033] According to some embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the multiple entities may be separated and placed in other components.

[0034] The cordless vacuum cleaner described below (e.g., vacuum cleaner (1) of FIG. 1) may be understood as an example to aid understanding of the present disclosure, and may be implemented in various modified forms. Furthermore, some of the attached drawings are not drawn to scale, and the dimensions of some components may be exaggerated to aid understanding of the present disclosure.

[0035] FIG. 1 is a perspective view of a vacuum cleaner (1) according to one embodiment of the present disclosure.

[0036] Referring to FIG. 1, a vacuum cleaner (1) may include a vacuum cleaner body (10), a dust bin (20) for receiving foreign substances such as dust, an extension tube (30) detachably connected to the vacuum cleaner body (10), a suction head (40) for sucking foreign substances, and a battery (50).

[0037] According to one embodiment, the vacuum cleaner body (10) may include a battery mounting portion (12), a handle portion (14), a control panel (16), a suction motor, and a filter portion (18).

[0038] According to one embodiment, the battery mounting portion (12) may be configured to mount and secure the battery (50) to the cleaner body (10). The battery mounting portion (12) may be configured, for example, to mount the battery (50) in a vertical direction. The battery mounting portion (12) may be formed, for example, at the rear of the cleaner body (10).

[0039] According to one embodiment, the handle portion (14) may be configured to allow a user to operate the vacuum cleaner (1) by holding the vacuum cleaner (1). For example, the user may hold the handle portion (14) and then move the vacuum cleaner (1) in a forward and backward direction to clean a surface to be cleaned (e.g., a floor).

[0040] According to one embodiment, the control panel (16) may be provided to receive various commands regarding the operation of the vacuum cleaner (1) from the user. The control panel (16) may include, for example, an input device such as a button, a switch, or a touch panel. The control panel (16) may include, for example, a power button for controlling the turn-on or turn-off of the vacuum cleaner (1). The control panel (16) may include, for example, a function button for changing the operating mode of the vacuum cleaner (1). The function button may include, for example, a button for changing the cleaning mode composed of a normal mode / strong mode / super strong mode that determines the suction strength (or cleaning power) of the cleaner, and may be used to control the suction strength of the vacuum cleaner (1) by the user's operation. The suction strength of the cleaner may be set to be strong in the order of super strong mode, strong mode, and normal mode.

[0041] According to one embodiment, the filter unit (18) can filter out foreign substances such as ultra-fine dust that are not filtered out in the dustbin (20). The filter unit (18) can, for example, accommodate a filter member therein. The filter member can include, for example, a high efficiency particulate air (HEPA) filter, but the type of the filter is not limited thereto. The filter member can further include, for example, a pre-filter and an electrostatic dust collection filter, and can be configured by combining a plurality of filters (for example, overlappingly arranging them).

[0042] According to one embodiment, the suction motor can provide suction force to the vacuum cleaner (1) so that foreign substances such as dust or hair existing on the floor are sucked into the vacuum cleaner (1). In one embodiment, the vacuum cleaner (1) can form a rotating airflow (e.g., a cyclone airflow) inside the dust bin (20) through the suction motor and separate the air sucked into the dust bin (20) from the foreign substances. For example, the air sucked into the dust bin (20) can be separated from the foreign substances by the centrifugal force of the rotating airflow and discharged to the outside of the vacuum cleaner (1). For example, the foreign substances sucked into the dust bin (20) can be separated from the air by the centrifugal force of the rotating airflow and collected inside the dust bin (20). Although not shown, the vacuum cleaner (1) may further include a suction fan that receives driving force from the suction motor and forms a rotating airflow by the driving of the suction motor.

[0043] According to one embodiment, the dustbin (20) may be configured to receive foreign substances sucked from the floor surface when the vacuum cleaner (1) is in operation. In one embodiment, the dustbin (20) may be configured to collect foreign substances, such as dust, filtered from air introduced through the suction head (40). In one embodiment, the dustbin (20) may be detachably coupled to the cleaner body (10). In one embodiment, the dustbin (20) may be provided to have a substantially cylindrical shape. In one embodiment, the dustbin (20) may be formed of a transparent material so that a user can check the amount of dust collected in the dustbin (20) from the outside.

[0044] According to one embodiment, the extension pipe (30) may form a path through which air or foreign substances drawn in from the suction head (40) flow. In one embodiment, the extension pipe (30) may be detachably coupled to the cleaner body (10), the dust bin (20), and / or the suction head (40). For example, the extension pipe (30) may be provided such that one end is pivotally connected to the suction head (40) so that the suction head (40) can articulate with respect to the extension pipe (30). In one embodiment, the extension pipe (30) may have a substantially hollow cylindrical shape. In one embodiment, the extension pipe (30) may be provided so as to be extendable in the vertical direction. For example, the extension pipe (30) may have a double pipe shape whose length varies in the vertical direction according to a user's operation.

[0045] In one embodiment, the suction head (40) may be configured to contact the floor surface while the vacuum cleaner (1) is in operation and to suck air and dust from the floor surface into the vacuum cleaner (1). In one embodiment, the suction head (40) may be configured to be rotatable in an up-and-down direction or a left-right direction. In one embodiment, the suction head (40) may be detachably coupled to the extension tube (30).

[0046] According to one embodiment, the battery (50) may be provided to supply power to components necessary for the operation of the vacuum cleaner (1), such as a suction motor. In one embodiment, the battery (50) may be detachably mounted on the cleaner body (10). The battery (50) may be vertically coupled to the cleaner body (10), for example, through a battery mounting portion (12) of the cleaner body (10). In one embodiment, the battery (50) may be provided as a rechargeable secondary battery. In one embodiment, the battery (50) may be electrically connected to a charging terminal provided on a cleaner stand or a docking station, although not shown. In this case, the battery (50) may be charged by receiving power from the charging terminal provided on the cleaner stand or the docking station.

[0047] According to one embodiment, the vacuum cleaner (1) may further include a blower device (100) (e.g., the blower device (100) of FIGS. 2A and 2B). The blower device (100) may be configured to suck in external air (e.g., air surrounding the blower device (100)), compress the sucked external air, and discharge the sucked external air at a predetermined pressure.

[0048] In one embodiment, the blower device (100) may be configured to blow out foreign substances such as dust present in the room by discharging air having a predetermined pressure. For example, the blower device (100) may blow out foreign substances present in areas that are out of reach of a user (e.g., high areas or narrow spaces within the room) and cause them to fall to the floor.

[0049] According to one embodiment, the blower device (100) may be vertically coupled to the cleaner body (10) or the extension pipe (30). For example, the blower device (100) may be detachably coupled to a portion of the cleaner body (10) (e.g., FIG. 2b) or detachably coupled to a portion of the extension pipe (30) (e.g., FIG. 2a), but is not limited thereto.

[0050] For example, the blower device (100) may be coupled to an extension pipe (30). For example, the blower device (100) may be positioned at the bottom of the extension pipe (30). The blower device (100) may be optionally coupled to a suction head (40). The state in which the blower device (100) is coupled to the bottom of the extension pipe (30) will be described with reference to FIG. 2A.

[0051] For example, the blower device (100) may be coupled to the cleaner body (10). For example, the blower device (100) may be coupled to the lower part of the cleaner body (10). For example, the blower device (100) may be placed at the lower part of the cleaner body (10). The state in which the blower device (100) is coupled to the lower part of the cleaner body (10) will be described in FIG. 2b.

[0052] According to one embodiment, the blower device (100) may include a first type of blower device (e.g., blower device (100; 100-1) of FIGS. 3 to 8) that generates compressed air by driving a blower motor (e.g., blower motor (140) of FIG. 3) disposed inside the blower device (100), and a second type of blower device (e.g., blower device (200; 200-1) of FIGS. 9 to 14) that generates compressed air by using a suction force generated by driving a suction motor built into the cleaner body (10). The detailed configuration and operating principles of the blower devices (100; 100-1; 200; 200-1) will be described below with reference to FIG. 3.

[0053] FIG. 2a is a perspective view of a vacuum cleaner (1) (e.g., vacuum cleaner (1) of FIG. 1) with a blower device (100) coupled to an extension tube (30) according to one embodiment of the present disclosure.

[0054] FIG. 2b is a perspective view of a cleaner (1) in which a blower device (100) is coupled to a cleaner body (10) according to one embodiment of the present disclosure.

[0055] The embodiments of FIGS. 2A and 2B can be optionally combined with the embodiment of FIG. 1. The blower device (100) illustrated in FIGS. 2A and 2B can be implemented as a first type of blower device (e.g., the blower device (100; 100-1) of FIGS. 3 to 8), or, although not illustrated, as a second type of blower device (e.g., the blower device (200; 200-1) of FIGS. 9 to 14).

[0056] According to one embodiment, the blower device (100) may be implemented as an accessory constituting the vacuum cleaner (1). For example, the blower device (100) may be optionally coupled with a suction head (40). The blower device (100) may be coupled to the cleaner body (10) or an extension pipe (30) coupled to the cleaner body (10) in a state where the suction head (40) is removed.

[0057] Referring to FIG. 2a, the blower device (100) can be coupled with an extension pipe (30).

[0058] According to one embodiment, the blower device (100) may be disposed at the lower portion of the extension pipe (30). The blower device (100) may include a connector (e.g., connector (103) of FIG. 3) for coupling with the extension pipe (30). The blower device (100) may be physically and / or electrically connected to the extension pipe (30) by the connector (103). Although not shown, the extension pipe (30) may include a connector receiving portion (not shown) for physically connecting with the blower device (100) and a signal line (not shown) for electrically connecting with it.

[0059] According to one embodiment, the blower device (100) may be electrically connected to a cleaner body (e.g., the cleaner body (10) of FIG. 1) via an extension tube (30). The blower device (100) may be supplied with power from the cleaner body (10). For example, the blower device (100) may drive a blower motor (e.g., the blower motor (140) of FIG. 4) using the power supplied from the cleaner body (10).

[0060] Referring to FIG. 2b, the blower device (100) can be combined with the cleaner body (10).

[0061] According to one embodiment, the blower device (100) may be disposed at the lower portion of the cleaner body (10). The blower device (100) may include a connector (103) for coupling with the cleaner body (10). The blower device (100) may be physically and / or electrically connected to the cleaner body (10) by the connector (103). Although not shown, the cleaner body (10) may include a connector receiving portion (not shown) for physically connecting to the blower device (100) and a signal line (not shown) for electrically connecting to the blower device (100).

[0062] According to one embodiment, the blower device (100) may be electrically connected to a cleaner body (e.g., the cleaner body (10) of FIG. 1). The blower device (100) may receive power from the cleaner body (10). For example, the blower device (100) may drive a blower motor (e.g., the blower motor (140) of FIG. 4) using the power supplied from the cleaner body (10).

[0063] According to one embodiment, the blower device (100) can be selectively coupled to the cleaner (1) by being arranged so as to be connectable with the cleaner body (10) or the extension pipe (30).

[0064] According to one embodiment, the blower device (100) can be easily attached or detached to replace the suction head (40).

[0065] According to one embodiment, the blower device (100) can be driven by power supplied from the cleaner body (10) without a separate power source. Therefore, the blower device (100) can be driven by the cleaner body (100) without a separate power supply device (e.g., battery), and a lightweight product can be realized.

[0066] FIG. 3 is a perspective view showing the appearance of a blower device (100) according to one embodiment of the present disclosure.

[0067] The embodiment of FIG. 3 can optionally be combined with the embodiments of FIG. 1, FIG. 2a, and FIG. 2b.

[0068] Referring to FIG. 3, the blower device (100) may include a first casing (101) including a connector (103) coupled with a cleaner body (e.g., the cleaner body (10) of FIG. 1), and a second casing (102) arranged to be coupled with the first casing (101). The first casing (101) and the second casing (102) may form the overall appearance of the blower device (100).

[0069] According to one embodiment, the first casing (101) may include a coupling portion (1010) for coupling with the second casing (102). When the second casing (102) is coupled with the first casing (101), a portion of the second casing (102) may be arranged to surround the outer surface of the coupling portion (1010).

[0070] According to one embodiment, the connector (103) may physically and / or electrically connect the cleaner body (10) and the blower device (100). The connector (103) may include a plurality of signal lines (1030) for electrically connecting the cleaner body (10) and the blower device (100). The plurality of signal lines (1030) may include, for example, a first signal line (1031), a second signal line (1032), and a third signal line (1033).

[0071] According to one embodiment, the first signal line (1031) and the third signal line (1033) may be power lines for supplying power. For example, the first signal line (1031) may be a (+) power line, and the third signal line (1033) may be a (-) power line.

[0072] According to one embodiment, the second signal line (1032) may be a signal line for transmitting and receiving a control signal and indicating whether the vacuum cleaner body (10) and the blower device (100) are connected.

[0073] Although not shown, the cleaner (1) (e.g., the vacuum cleaner (1) of FIG. 1) may further include a connector receiving portion (not shown) arranged at a position corresponding to the connector (103) when the blower device (100) is coupled to the cleaner body (10). The connector receiving portion may include signal lines corresponding to the first to third signal lines (1031, 1032, 1033). In addition, the cleaner (1) may further include a connector receiving portion (not shown) arranged at a position corresponding to the extension pipe (30) when the blower device (100) is coupled to the extension pipe (e.g., the extension pipe (30) of FIG. 1).

[0074] According to one embodiment, the blower device (100) may include a button (104) for coupling or detaching from the cleaner body (10) and / or the extension tube (30). The button (104) may include a protruding portion (1041) formed to protrude from the first casing (101), and a pressing portion (1042) formed to be pressurized by a user by being connected to the protruding portion (1041). For example, when the pressing portion (1042) is pressed by a user, the connector (103) may move to be inserted into the inside of the first casing (101).

[0075] According to one embodiment, a second casing (102) may be formed with a second casing opening (102a). The second casing opening (102a) may form a path for external air to flow into a second inlet (110a) to be described later. The second casing opening (102a) may be located, for example, at the front of the second casing (102).

[0076] According to one embodiment, the blower device (100) may include a housing portion (110) disposed within a space formed by the first casing (101) and the second casing (102). The housing portion (110) may provide a space in which a blower motor (e.g., the blower motor (140) of FIG. 3) to be described later is accommodated therein.

[0077] According to one embodiment, a second inlet (110a) may be formed in the housing portion (110) for allowing external air to flow toward the blower motor (140). The second inlet (110a) may be formed by removing a portion of a side surface of the housing portion (110) located near the blower motor (140).

[0078] Although not shown, the blower device (100) may further include a second filter disposed on the inside of the housing portion (110) adjacent to the second inlet (110a). For example, the second filter may be disposed along the perimeter of the housing portion (110) where the second inlet (110a) is located. The second filter may collect foreign substances contained in the external air flowing into the second inlet (110a).

[0079] According to one embodiment, the blower device (100) may include a discharge portion (120) coupled with a housing portion (110). The discharge portion (120) may provide a space in which a blower fan (e.g., a blower fan (160) of FIG. 3) to be described later may be accommodated therein. External air drawn in by the blower fan (160) in the inner space of the discharge portion (120) may be compressed to a predetermined pressure.

[0080] According to one embodiment, a first inlet (120a) may be formed in the discharge portion (120) for external air to flow in toward the blower fan (160). The first inlet (120a) may be formed by removing a portion of a side surface of the discharge portion (120) located near the blower fan (160).

[0081] Although not shown, the blower device (100) may further include a first filter disposed on the inside of the discharge portion (120) adjacent to the first inlet (120a). For example, the first filter may be disposed along the perimeter of the discharge portion (120) where the first inlet (120a) is located. The first filter may collect foreign substances contained in the external air flowing into the first inlet (120a).

[0082] According to one embodiment, the blower device (100) may further include a coupling nozzle (190) coupled with the discharge portion (120). The coupling nozzle (190) may form a path through which external air compressed by the blower fan (160) passes through the discharge portion (120) and is discharged to the outlet of the coupling nozzle (190).

[0083] FIG. 4 is a cross-sectional side view of a blower device (100) according to one embodiment of the present disclosure.

[0084] Fig. 5 is a cross-sectional side view of a blower device (100) according to one embodiment of the present disclosure. Fig. 5 may be understood as a drawing illustrating the flow path of air when the blower device (100) is in operation.

[0085] FIGS. 4 and 5 may be understood as cross-sectional views taken along line A-A' of FIG. 3. FIGS. 4 and 5 may be understood as being illustrated with some components (e.g., the second housing (102)) removed for convenience of explanation.

[0086] Among the configurations of FIGS. 4 and 5, descriptions that overlap with those of FIG. 3 will be omitted, and the differences will be explained.

[0087] The embodiments of FIGS. 4 and 5 can optionally be combined with the embodiment of FIG. 3.

[0088] Referring to FIGS. 4 and 5, the blower motor (140) can be placed in the inner space of the housing portion (110). The blower motor (140) can transmit power for rotating the blower fan (160) placed in the inner space of the discharge portion (120).

[0089] According to one embodiment, the blower motor (140) may be implemented as an AC motor and / or a brushless DC motor.

[0090] According to one embodiment, the blower motor (140) may be supplied with power from the vacuum cleaner body (e.g., the vacuum cleaner body (10) of FIG. 1). For example, the blower motor (140) may be supplied with power from the vacuum cleaner body (10) via the connector (103).

[0091] According to one embodiment, the blower motor (140) can be turned on or off by a power button included in the control panel (16). For example, the rotation speed of the blower motor (140) can be set by a function button included in the control panel (16). Based on the rotation speed of the blower motor (140), the air volume and / or air speed of the compressed air discharged from the coupling nozzle (190) of the blower device (100) can be determined.

[0092] According to one embodiment, the blower motor (140) may be physically connected to the blower fan (160) by a rotational shaft (150). For example, the rotational shaft (150) may be arranged to penetrate the center of the blower motor (140), and one side of the rotational shaft (150) may be fixed to the blower fan (160). Since the blower motor (140) and the blower fan (150) are connected by the rotational shaft (150), when the blower motor (140) rotates, the blower fan (150) may rotate together.

[0093] According to one embodiment, the blower fan (160) may be driven by receiving power generated by the rotation of the blower motor (140). The blower fan (160) may be implemented as, for example, a compressor fan. For example, the blower fan (160) may include a plurality of blades. When the blower fan (160) rotates, the blower fan (160) may compress air existing in the surroundings.

[0094] According to one embodiment, the blower device (100) may further include a baffle (130) to limit mixing of external air flowing toward the blower motor (140) and external air flowing toward the blower fan (160). The baffle (130) may be disposed between the housing portion (110) and the discharge portion (120). The baffle (130) may be formed to separate a space formed inside the housing portion (110) and a space formed inside the discharge portion (120).

[0095] Although not shown, the blower device (100) may further include a motor cooling path. The motor cooling path may be defined as a path formed so that external air sucked into the second inlet (110a) flows past the vicinity of the blower motor (140) and toward the discharge portion (120). For example, the motor cooling path may include an inlet communicating with the second inlet (110a) and may be formed in various paths, including an outlet communicating with the discharge portion (120).

[0096] For example, when a motor cooling path is formed, an opening communicating with the outlet of the motor cooling path and the discharge portion (120) may be formed in the partition wall (130).

[0097] According to one embodiment, as the blower device (100) further forms a motor cooling passage, external air sucked into the second inlet (110a) can pass near the blower motor (140) and accelerate cooling of the blower motor (140). The path of the air moving along the motor cooling passage is illustrated in p13 of FIG. 5 below.

[0098] According to one embodiment, when the blower device (100) operates, air existing outside the blower device (100) may flow along the following path. For convenience of explanation, a space formed inside the housing portion (110) and located above the blower motor (140) may be defined as a first space (s1). A space formed inside the first housing (101) (e.g., the first housing (101) of FIG. 3) may be defined as a second space (s2).

[0099] Referring to FIG. 5, the path indicated by p11 (bold solid line) represents the flow path of air that passes from the outside of the blower device (100) through the blower fan (160) and is discharged to the outside through the coupling nozzle (190), and the path indicated by p12 (bold dotted line) represents the flow path of air that passes from the outside of the blower device (100) through the blower motor (140) and is sucked into the cleaner body (10).

[0100] In one embodiment, air traveling along the path of p12 may be introduced into the second inlet (110a). For example, external air may be introduced into the second inlet (110a) by driving a blower motor (140) powered by the vacuum cleaner body (10).

[0101] According to one embodiment, foreign substances present in the external air flowing in through the second inlet (110a) can be collected by passing through a second filter disposed around the second inlet (110a). By collecting the foreign substances, the second filter can prevent the foreign substances from flowing in and accumulating inside the blower device (100). The external air passing through the second inlet (110a) can sequentially pass through the first space (s1) and the second space (s2) by driving the blower motor (140) and then move to the cleaner body (10).

[0102] According to one embodiment, air moving along the path of p12 can cool the heated blower motor (140) by moving near the blower motor (140). For example, the blower motor (140) may heat components included in the blower motor (140) by driving, and the external air moving along the path of p12 can improve the durability of the blower motor (140) by cooling the blower motor (140).

[0103] According to one embodiment, air moving along the path of p13 can flow along a motor cooling path (not shown) formed in the blower device (100). The air moving along the path of p13 can be introduced into the second intake port (110a), pass near the blower motor (140), and move to the discharge portion (120). The external air moving along the path of p13 can accelerate the cooling of the blower motor (140), thereby further improving the durability of the blower motor (140).

[0104] According to one embodiment, air moving along the path of p11 may be drawn in from the first inlet (120a), compressed to a predetermined pressure by the rotation of the blower fan (160), and discharged through the coupling nozzle (190).

[0105] According to one embodiment, external air present around the first inlet (120a) can be introduced into the first inlet (120a) by a blower fan (160) that rotates by receiving driving force from a blower motor (140).

[0106] According to one embodiment, foreign substances present in the external air flowing in through the first inlet (120a) can be collected by passing through a first filter disposed around the first inlet (120a). By collecting the foreign substances, the first filter can prevent the foreign substances from flowing in and accumulating in the internal space of the discharge portion (120) and / or the blower fan (160). The external air passing through the first inlet (120a) can be compressed to have a predetermined pressure by the rotation of the blower fan (160) and can be discharged to the outside by passing through the internal space of the discharge portion (120) and the coupling nozzle (190).

[0107] According to one embodiment, a blower device (100) that sucks in surrounding air and discharges it at a predetermined pressure can blow out foreign substances that exist in places that are difficult for a user to reach.

[0108] FIG. 6 is a perspective view showing the appearance of a blower device (100-1) (e.g., the blower device (100) of FIGS. 2A and 2B) according to one embodiment of the present disclosure.

[0109] The blower device (100-1) illustrated in FIG. 6 is an expanded embodiment of the blower device (100) illustrated in FIGS. 3 to 5, and can perform both a blowing function and a suction function simultaneously. Accordingly, the blower device (100-1) of FIG. 6 may be additionally provided with components that perform a suction function. In FIG. 6, descriptions that overlap with those of FIGS. 3 to 5 may be omitted, and descriptions will be centered on additional components for performing a suction function.

[0110] The embodiment of FIG. 6 can be optionally combined with the embodiments of FIGS. 1, 2a, and 2b.

[0111] Referring to FIG. 6, the blower device (100-1) may further include a suction device (180) for sucking in external air. The suction device (180) may include, for example, a bypass suction path (181) and an extension pipe (185).

[0112] According to one embodiment, the bypass suction passage (181) may be disposed on a side of a housing portion (e.g., the housing portion (110) of FIG. 3). The bypass suction passage (181) may be disposed, for example, in a height direction along the housing portion (110). One side of the bypass suction passage (181) may be formed with an inlet (181a) for sucking in external air. The other side of the bypass suction passage (181) may be in communication with the housing portion (110).

[0113] In one embodiment, the extension tube (185) may be arranged to be detachable from the second housing (102). For example, the extension tube (185) may be coupled to or detached from the second housing (102) by a user. When the extension tube (185) is coupled to the second housing (102), the extension tube (185) may be physically connected to one end of the second housing (102).

[0114] According to one embodiment, the extension pipe (185) can form a space for easily sucking in external air when sucking in external air through the inlet (181a) of the bypass suction path (181). For example, when a user presses the extension pipe (185) against the floor surface and the blower device (100-1) is turned on to discharge compressed air from the coupling nozzle (190), air in the space closed by the extension pipe (185) and the floor surface can be easily sucked into the bypass suction path (181).

[0115] According to one embodiment, the extension tube (185) may have a generally cylindrical shape. For example, the extension tube (185) may be arranged to surround the outside of the discharge portion (120) and the coupling nozzle (190).

[0116] According to one embodiment, the suction device (180) can suck in external air by the suction force generated by the suction motor included in the cleaner body (10). External air can be sucked into the cleaner body (10) through the suction device (180) by the suction force generated by the suction motor.

[0117] According to one embodiment, the blower device (100-1) further includes a suction device (180), so that foreign substances accumulated in the cleaning area can be blown away by discharging compressed air, and at the same time, the blown air can be sucked in to facilitate cleaning.

[0118] FIG. 7 is a cross-sectional side view of a blower device (100-1) (e.g., the blower device (100-1) of FIG. 6) according to one embodiment of the present disclosure.

[0119] Fig. 8 is a cross-sectional side view of a blower device (100-1) according to one embodiment of the present disclosure. Fig. 8 may be understood as a drawing illustrating the flow path of air when the blower device (100-1) is in operation.

[0120] Figures 7 and 8 may be understood as cross-sectional views taken along line B-B' of Figure 6. Figures 7 and 8 may be illustrated with some components removed for convenience of explanation.

[0121] In addition, the blower device (100-1) illustrated in FIGS. 7 and 8 can be understood as an expanded embodiment in which a suction device (180) (e.g., the suction device (180) of FIG. 6 (since there is no part number 180 in FIG. 6, please add it)) is additionally provided, compared to the blower device (100) of FIGS. 3 to 5. Accordingly, descriptions of the components of FIGS. 7 and 8 that overlap with those of FIG. 6 will be omitted, and descriptions will be focused on the differences.

[0122] The embodiments of FIGS. 7 and 8 can be optionally combined with the embodiment of FIG. 6.

[0123] Referring to FIGS. 7 and 8, the blower motor (140) can be turned on or off by a power button included in the control panel (16). The rotation speed of the blower motor (140) can be set by a function button included in the control panel (16). Based on the rotation speed of the blower motor (140), the air volume and / or air speed of the compressed air discharged from the coupling nozzle (190) of the blower device (100) can be determined.

[0124] In one embodiment, the suction motor can be driven independently of the blower motor (140). For example, at least one of the blower motor (140) and the suction motor can be driven by the control panel (16) being operated by the user's selection, thereby performing different functions.

[0125] For example, the blower motor (140) and the suction motor may be driven simultaneously. In this case, the blowing device (100-1) may perform a blowing function of sucking in external air and discharging compressed air at a predetermined pressure, and at the same time, may perform a function of sucking in surrounding air with the suction force generated by the suction motor.

[0126] For example, the blower motor (140) may be driven and the suction motor may not be driven. In this case, the blower device (100-1) may only perform a blowing function of drawing in external air and discharging compressed air at a predetermined pressure.

[0127] For example, the blower motor (140) may not be driven, and only the suction motor may be driven. In this case, the suction motor may only perform the function of sucking in surrounding air using the suction force generated.

[0128] According to one embodiment, when the suction motor is driven, external air can be sucked into the bypass suction passage (181) by the suction force generated by the suction motor. By the suction force generated by the suction motor, air located inside the space formed by the extension pipe (185) can be introduced into the inlet (181a) of the bypass suction passage (181). The introduced external air can move along the space formed by the bypass suction passage (181).

[0129] According to one embodiment, the outlet (181b) of the bypass suction passage (181) may be connected to the housing portion (110). In order to connect the outlet (181b) of the bypass suction passage (181) and the housing portion (110), a communication hole may be formed in the housing portion (110).

[0130] According to one embodiment, the suction device (180) may further include a bypass valve (183) configured to open and close the bypass suction path (181) on the inner space formed by the bypass suction path (181). The bypass valve (183) may be implemented as, for example, a valve or a damper. The bypass valve (183) may be opened and closed by a user's operation, and may selectively perform an operation of opening or closing the bypass suction path (181) to suck in surrounding air.

[0131] According to one embodiment, when the blower device (100-1) operates, air existing outside the blower device (100-1) can flow along the following path. Hereinafter, for convenience of explanation, the inner space formed by the bypass suction path (181) will be defined as the third space (s3).

[0132] Referring to FIG. 8, the path indicated by p21 (bold solid line) represents the flow path of air that passes from the outside of the blower device (100-1) through the blower fan (160) and is discharged to the outside through the coupling nozzle (190), the path indicated by p22 (bold dotted line) represents the flow path of air that passes from the outside of the blower device (100-1) through the blower motor (140) and is sucked into the cleaner body (10), and the path indicated by p23 (bold single-dotted line) represents the flow path of air that flows from the outside of the blower device (100-1) into the suction device (180) and is sucked into the cleaner body (10).

[0133] In one embodiment, air traveling along the path of p22 may be introduced into the second inlet (110a). For example, external air may be introduced into the second inlet (110a) by driving a blower motor (140) powered by the vacuum cleaner body (10).

[0134] According to one embodiment, foreign substances present in the external air flowing in through the second inlet (110a) can be collected by passing through a second filter arranged around the second inlet (110a). By collecting the foreign substances, the second filter can prevent the foreign substances from flowing in and accumulating inside the blower device (100-1). The external air passing through the second inlet (110a) can sequentially pass through the first space (s1) and the second space (s2) by driving the blower motor (140) and then move to the cleaner body (10).

[0135] In one embodiment, air moving along the path of p22 can cool the heated blower motor (140) by moving near the blower motor (140). For example, the blower motor (140) may heat components included in the blower motor (140) by driving, and external air moving along the path of p12 can improve the durability of the blower motor (140) by cooling the blower motor (140).

[0136] According to one embodiment, air moving along the path of p23 may be drawn in from the extension pipe (185) and sucked toward the inlet (181a) of the bypass suction path (181) due to the suction force generated by the suction motor.

[0137] According to one embodiment, external air introduced into the inlet (181a) of the bypass suction path (181) can pass through the third space (s3) and be introduced into the first space (s1) through the outlet (181b). The air introduced into the first space (s1) can pass through the second space (s2) and be introduced into the cleaner body (10).

[0138] According to one embodiment, the blower device (100-1) can perform a suction function simultaneously with a blowing function by sucking in external air flowing into the path of p23.

[0139] According to one embodiment, air moving along the path of p21 may be drawn in from the first inlet (120a), compressed to a predetermined pressure by the rotation of the blower fan (160), and discharged through the coupling nozzle (190).

[0140] According to one embodiment, external air present around the first inlet (120a) can be introduced into the first inlet (120a) by a blower fan (160) that rotates by receiving driving force from a blower motor (140).

[0141] According to one embodiment, foreign substances present in the external air introduced into the first inlet (120a) can be collected by passing through a first filter disposed around the first inlet (120a). By collecting the foreign substances, the first filter can prevent the foreign substances from entering and accumulating in the internal space of the discharge portion (120) and / or the blower fan (160). The external air that has passed through the first inlet (120a) can be discharged to the outside by passing through the internal space of the discharge portion (120) and the coupling nozzle (190) by the rotation of the blower fan (160).

[0142] According to one embodiment, the blower device (100-1) can suck in ambient air and discharge it at a predetermined pressure, thereby blowing out foreign substances present in places that are difficult for a user to reach, while sucking in the blown ambient air.

[0143] FIG. 9 is a perspective view showing the appearance of a blower device (200) according to one embodiment of the present disclosure.

[0144] FIG. 10 is a cross-sectional side view of a blower device (200) according to one embodiment of the present disclosure.

[0145] Fig. 11 is a cross-sectional side view of a blower device (200) according to one embodiment of the present disclosure. Fig. 11 may be understood as a drawing illustrating the flow path of air when the blower device (200) is in operation.

[0146] The blower device (200) of FIGS. 9 to 11 may be understood as a second type of blower device (200) which is an extended embodiment of the blower device (100; 100-1) of FIGS. 3 to 8. The blower device (200) may rotate a blower fan (e.g., a blower fan (260) of FIG. 10) by a turbine fan (e.g., a turbine fan (240) of FIG. 10) which rotates by the suction force generated by a suction motor inside the cleaner body (e.g., the cleaner body (10) of FIG. 1). By rotating and driving the blower fan (260), the blower device (200) may compress the sucked external air to a predetermined pressure and blow it.

[0147] Some components forming the exterior of the blower device (200) in FIGS. 9 to 11, for example, the first housing (101) (e.g., the first housing in FIG. 3), the second housing (102) (e.g., the second housing (102) in FIG. 3), the connector (103) (e.g., the connector (103) in FIG. 3), the button (104) (e.g., the button (104) in FIG. 3), and / or the coupling nozzle (190) (e.g., the coupling nozzle (190) in FIG. 3) may be configured substantially the same as the blower device (100; 100-1) in FIGS. 3 to 8. Therefore, in FIGS. 9 to 11 below, the differences from the blower device (100; 100-1) in FIGS. 3 to 8 will be described.

[0148] The embodiments of FIGS. 9 to 11 can optionally be combined with the embodiments of FIGS. 1, 2a, and 2b.

[0149] Referring to FIGS. 9 to 11, a second type of blower device (200) (hereinafter referred to as blower device (200)) may include a turbine fan (240), a rotating shaft (250), and a blower fan (260).

[0150] According to one embodiment, the blower device (200) may include a housing portion (210) disposed within a space formed by the first casing (101) and the second casing (102). The housing portion (110) may provide a space in which a turbine fan (240) to be described later is accommodated therein.

[0151] According to one embodiment, the housing portion (210) may be formed with a second inlet (210a) for allowing outside air to flow toward the turbine fan (240). The second inlet (210a) may be formed by removing a portion of a side surface of the housing portion (210) located near the turbine fan (240). The second inlet (210a) may be referred to as a “turbine-side inlet (210a).”

[0152] According to one embodiment, the turbine fan (240) may be positioned within the housing portion (210) (e.g., the housing portion (110) of FIG. 3). For example, the turbine fan (240) may be positioned at the bottom of the housing portion (210).

[0153] According to one embodiment, the blower device (200) may include a discharge portion (220) coupled with a housing portion (210). The discharge portion (220) may provide a space in which a blower fan (260), which will be described later, is accommodated therein. External air drawn in by the blower fan (260) in the inner space of the discharge portion (220) may be compressed to a predetermined pressure.

[0154] According to one embodiment, a first inlet (220a) may be formed in the discharge portion (220) for external air to flow in toward the blower fan (260). The first inlet (220a) may be formed by removing a portion of a side surface of the discharge portion (220) located near the blower fan (260). The first inlet (220a) may be referred to as a “blower-side inlet (220a).”

[0155] Although not shown, the blower device (200) may further include a first filter disposed on the inside of the discharge portion (220) adjacent to the first inlet (220a). For example, the first filter may be disposed along the perimeter of the discharge portion (220) where the first inlet (220a) is located. The first filter may collect foreign substances contained in the external air flowing into the first inlet (220a).

[0156] According to one embodiment, the blower fan (260) may be formed within a space formed by a discharge portion (220) (e.g., discharge portion (120) of FIG. 3) connected to a housing portion (210).

[0157] According to one embodiment, the blower fan (260) may be physically connected to the turbine fan (240) by a rotating shaft (250). For example, the rotating shaft (250) may be arranged to penetrate the center of the turbine fan (240), and one side of the rotating shaft (250) may be fixed to the blower fan (260). For example, since the turbine fan (240) and the blower fan (260) are physically connected by the rotating shaft (250), when the turbine fan (240) rotates, the blower fan (260) may rotate together.

[0158] According to one embodiment, the turbine fan (240) may be configured to rotate by suction force generated by a suction motor disposed inside the cleaner body (e.g., the cleaner body (10) of FIG. 1). As the turbine fan (240) rotates, external air may be drawn in toward the second inlet (210a).

[0159] According to one embodiment, a blower fan (260) connected to the turbine fan (240) by a rotation shaft (250) may rotate as the turbine fan (240) rotates. As the blower fan (260) rotates, outside air may be introduced into the first inlet (220a). The outside air may be compressed to have a predetermined pressure as the blower fan (260) rotates.

[0160] According to one embodiment, the blower device (200) may further include a baffle (230) to limit mixing of outside air flowing toward the turbine fan (240) through the second inlet (210a) and outside air flowing toward the blower fan (260) through the first inlet (220a). The baffle (230) may be disposed between the housing portion (210) and the discharge portion (220). The baffle (230) may be formed to separate a space formed inside the housing portion (210) and a space formed inside the discharge portion (220).

[0161] Referring to FIG. 11, the path indicated by p31 (bold solid line) represents the flow path of air that passes from the outside of the blower device (200) through the blower fan (260) and is discharged to the outside through the coupling nozzle (190), and the path indicated by p32 (bold dotted line) represents the flow path of air that passes from the outside of the blower device (200) through the turbine fan (240) and is sucked into the cleaner body (10).

[0162] According to one embodiment, air moving along the path of p32 may be introduced into the second inlet (210a) by the rotation of the turbine fan (240). For example, external air may be introduced into the second inlet (210a) by the turbine fan (240) that rotates by driving a suction motor disposed inside the cleaner body (10).

[0163] According to one embodiment, foreign substances present in the external air flowing in through the second inlet (210a) can be collected by passing through a second filter disposed around the second inlet (210a). By collecting the foreign substances, the second filter can prevent the foreign substances from flowing in and accumulating inside the blower device (100). The external air passing through the second inlet (210a) can sequentially pass through the first space (s1) and the second space (s2) and then move to the cleaner body (10).

[0164] According to one embodiment, air moving along the path of p31 may be drawn in from the first inlet (220a), compressed to a predetermined pressure by the rotation of the blower fan (260), and discharged through the coupling nozzle (190).

[0165] According to one embodiment, external air present around the first inlet (220a) can be introduced into the first inlet (220a) by a blower fan (260) that rotates in response to the rotation of the turbine fan (260).

[0166] According to one embodiment, foreign substances present in the external air introduced into the first inlet (220a) can be collected by passing through a first filter disposed around the first inlet (220a). By collecting the foreign substances, the first filter can prevent the foreign substances from being introduced into and accumulated in the internal space of the discharge portion (220) and / or the blower fan (260). The external air that has passed through the first inlet (220a) can be compressed to have a predetermined pressure by the rotation of the blower fan (260) and can be discharged to the outside by passing through the internal space of the discharge portion (220) and the coupling nozzle (190).

[0167] According to one embodiment, a blower device (200) that sucks in surrounding air and discharges it at a predetermined pressure can blow out foreign substances that exist in places that are difficult for a user to reach.

[0168] FIG. 12 is a perspective view showing the appearance of a blower device (200-1) (e.g., the blower device (200) of FIG. 9) according to one embodiment of the present disclosure.

[0169] FIG. 13 is a cross-sectional side view of a blower device (200-1) according to one embodiment of the present disclosure.

[0170] Fig. 14 is a cross-sectional side view of a blower device (200-1) according to one embodiment of the present disclosure. Fig. 14 may be understood as a drawing illustrating the flow path of air when the blower device (200-1) is in operation.

[0171] The blower device (200-1) illustrated in FIGS. 12 to 14 is an expanded embodiment of the blower device (200) illustrated in FIGS. 9 to 11, and can perform both a blowing function and a suction function simultaneously. Therefore, the blower device (200-1) of FIGS. 12 to 14 may be additionally provided with components that perform a suction function. In FIGS. 12 to 14, descriptions that overlap with those of FIGS. 9 to 11 may be omitted, and descriptions will be centered on additional components for performing a suction function.

[0172] The embodiments of FIGS. 12 to 14 can optionally be combined with the embodiments of FIGS. 1, 2a, and 2b.

[0173] Referring to FIGS. 12 to 14, the blower device (200-1) may further include a suction device (280) for sucking in external air. The suction device (280) may include, for example, a bypass suction path (281) and an extension pipe (285).

[0174] According to one embodiment, the bypass suction passage (281) may be disposed on a side of a housing portion (e.g., the housing portion (210) of FIG. 9). The bypass suction passage (281) may be disposed, for example, in a height direction along the housing portion (210). One side of the bypass suction passage (281) may be formed with an inlet (281a) for sucking in external air. The other side of the bypass suction passage (281) may be communicated with the housing portion (210).

[0175] In one embodiment, the extension tube (285) may be arranged to be detachable from the second housing (102). For example, the extension tube (285) may be coupled to or detached from the second housing (102) by a user. When the extension tube (285) is coupled to the second housing (102), the extension tube (285) may be physically connected to one end of the second housing (102).

[0176] According to one embodiment, the extension pipe (285) can form a space for easily sucking in external air when sucking in external air through the inlet (281a) of the bypass suction path (281). For example, when a user presses the extension pipe (285) against the floor surface and the blower device (200-1) is turned on to discharge compressed air from the coupling nozzle (190), air in the space closed by the extension pipe (285) and the floor surface can be easily sucked into the bypass suction path (281).

[0177] In one embodiment, the extension tube (285) may have a generally cylindrical shape. For example, the extension tube (285) may be arranged to surround the outside of the discharge portion (220) and the coupling nozzle (190).

[0178] According to one embodiment, the suction device (280) can suck in external air by the suction force generated by the suction motor included in the cleaner body (10). External air can be sucked into the cleaner body (10) through the suction device (280) by the suction force generated by the suction motor.

[0179] According to one embodiment, the blower device (200-1) further includes a suction device (280), so that foreign substances accumulated in the cleaning area can be blown away by discharging compressed air, and at the same time, the blown air can be sucked in to facilitate cleaning.

[0180] According to one embodiment, when the suction motor is driven, external air can be sucked into the bypass suction passage (281) by the suction force generated by the suction motor. By the suction force generated by the suction motor, air located inside the space formed by the extension pipe (285) can be introduced into the inlet (281a) of the bypass suction passage (281). The introduced external air can move along the space formed by the bypass suction passage (281).

[0181] According to one embodiment, the outlet (281b) of the bypass suction passage (281) can be connected to the housing portion (210). In order to connect the outlet (281b) of the bypass suction passage (281) and the housing portion (210), a communication hole can be formed in the housing portion (210).

[0182] According to one embodiment, the suction device (280) may further include a bypass valve (283) configured to open and close the bypass suction path (281) on the inner space formed by the bypass suction path (281). The bypass valve (283) may be implemented as, for example, a valve or a damper. The bypass valve (283) may be opened and closed by a user's operation, and may selectively perform an operation of opening or closing the bypass suction path (281) to suck in surrounding air.

[0183] According to one embodiment, when the blower device (200-1) operates, air existing outside the blower device (200-1) can flow along the following path. Hereinafter, for convenience of explanation, the inner space formed by the bypass suction path (281) will be defined as the third space (s3).

[0184] Referring to FIG. 14, the path indicated by p41 (bold solid line) represents the flow path of air that passes from the outside of the blower device (200-1) through the blower fan (260) and is discharged to the outside through the coupling nozzle (190), the path indicated by p42 (bold dotted line) represents the flow path of air that passes from the outside of the blower device (200-1) through the turbine fan (240) and is sucked into the cleaner body (10), and the path indicated by p43 (bold single-dotted line) represents the flow path of air that flows from the outside of the blower device (200-1) into the suction device (180) and is sucked into the cleaner body (10).

[0185] In one embodiment, air traveling along the path of p42 may be introduced into the second inlet (210a). For example, in response to the rotation of the turbine fan (240) by the suction force generated by the suction motor, external air may be introduced into the second inlet (210a).

[0186] According to one embodiment, foreign substances present in the external air introduced into the second inlet (210a) can be collected by passing through a second filter disposed around the second inlet (210a). By collecting the foreign substances, the second filter can prevent the foreign substances from being introduced into and accumulated inside the blower device (200-1). The external air that has passed through the second inlet (210a) can sequentially pass through the first space (s1) and the second space (s2) by the suction force generated by the suction motor, and then move to the cleaner body (10).

[0187] According to one embodiment, air moving along the path of p43 may be drawn in from the extension pipe (285) and drawn toward the inlet (281a) of the bypass suction path (281) due to the suction force generated by the suction motor.

[0188] According to one embodiment, external air introduced into the inlet (281a) of the bypass suction path (281) can pass through the third space (s3) and be introduced into the first space (s1) through the outlet (281b). The air introduced into the first space (s1) can pass through the second space (s2) and be introduced into the cleaner body (10).

[0189] According to one embodiment, the blower device (200-1) can perform a suction function simultaneously with a blowing function by sucking in external air flowing into the path of p43.

[0190] According to one embodiment, air moving along the path of p41 may be drawn in from the first inlet (220a), compressed to a predetermined pressure by the rotation of the blower fan (260), and discharged through the coupling nozzle (190).

[0191] According to one embodiment, external air present around the first inlet (220a) can be introduced into the first inlet (220a) by a blower fan (260) that rotates in response to the rotation of the turbine fan (240).

[0192] According to one embodiment, foreign substances present in the external air introduced through the first inlet (220a) can be collected by passing through the first filter disposed around the first inlet (220a). The second filter can collect the foreign substances, thereby limiting the foreign substances from entering and accumulating in the internal space of the discharge portion (220) and / or the blower fan (260). The external air that has passed through the first inlet (220a) can be discharged to the outside by passing through the internal space of the discharge portion (220) and the coupling nozzle (190) by the rotation of the blower fan (260).

[0193] According to one embodiment, the blower device (200-1) can suck in ambient air and discharge it at a predetermined pressure, thereby blowing out foreign substances present in places that are difficult for a user to reach, while sucking in the blown ambient air.

[0194] FIG. 15 is a front view of a coupling nozzle (190; 190-1; 190-2) (e.g., coupling nozzle (190) of FIGS. 3 to 14) according to one embodiment of the present disclosure.

[0195] The embodiment of FIG. 15 can be optionally combined with the embodiments of FIGS. 2 to 14.

[0196] Referring to FIG. 15, (a) to (c) illustrate some of embodiments of coupling nozzles (190; 190-1; 190-2) that can be fastened to a blower device (e.g., blower devices (100; 100-1; 200; 200-1) of FIGS. 3 to 14). For convenience, the coupling nozzle illustrated in (a) will be referred to as a first coupling nozzle (190), the coupling nozzle illustrated in (b) as a second coupling nozzle (190-1), and the coupling nozzle illustrated in (c) as a third coupling nozzle (190-2). However, since the first to third coupling nozzles (190; 190-1; 190-2) perform substantially the same function except for the size of the cross-sectional area of ​​the discharge port (193; 193-1; 193-2) and the shape of the overall appearance, the description will be centered on the first coupling nozzle (190), and the second coupling nozzle (190-1; 190-2) will be centered on the second coupling nozzle (190-2). The description of the nozzle (190-1) and the third coupling nozzle (190-2) may be applied to the description of the first coupling nozzle (190).

[0197] According to one embodiment, the first coupling nozzle (190) may be formed with a fastening member (191) that is coupled with the outlet of the discharge portion (e.g., the discharge portion (120) of FIG. 3) and a discharge port (193) through which compressed air is discharged by a blower fan (e.g., the blower fan (160; 260) of FIGS. 3 to 14).

[0198] According to one embodiment, the first coupling nozzle (190) may be formed so that its cross-sectional area becomes narrower as it extends from the fastening member (191) toward the discharge port (193). Accordingly, compressed air discharged from the discharge portion (120) may be discharged to the discharge port (193) of the first coupling nozzle (190) and further compressed.

[0199] According to one embodiment, the pressure of air discharged by the blower device (100; 100-1; 200; 200-1) can be controlled depending on the size of the cross-sectional area of ​​the discharge ports (193; 193-1; 193-2) formed in the first to third coupling nozzles (190; 190-1; 190-2). For example, the pressure of air discharged by a blower fan (160; 260) rotating at the same speed may be higher when the second coupling nozzle (190-1) is coupled to the blower device (100; 100-1; 200; 200-1) than when the first coupling nozzle (190) is coupled to the blower device (100; 100-1; 200; 200-1). For example, the pressure of air discharged by a blower fan (160; 260) rotating at the same speed may be higher when a third coupling nozzle (190-2) is coupled to the blower device (100; 100-1; 200; 200-1) than when a second coupling nozzle (190-1) is coupled to the blower device (100; 100-1; 200; 200-1). By selectively applying any one of the first to third coupling nozzles (190; 190-1; 190-2), the pressure of air discharged to the blowing device (100; 100-1; 200; 200-1) can be controlled.

[0200] A cleaner according to one embodiment of the present disclosure (e.g., vacuum cleaner (1) of FIG. 1) may provide a blower device (100; 100-1; 200; 200-1) that sucks in external air, generates compressed air at a predetermined pressure, and discharges the compressed air.

[0201] A vacuum cleaner (1) according to one embodiment of the present disclosure can easily blow away foreign substances in areas that cannot be reached by a user by discharging compressed air at a predetermined pressure.

[0202] A cleaner (1) according to one embodiment of the present disclosure can provide a blower device that can be easily combined or detached by replacing the suction head (40).

[0203] A vacuum cleaner (1) according to one embodiment of the present disclosure can realize product weight reduction by providing a blower device (100; 100-1; 200; 200-1) that receives power from the vacuum cleaner body (10) without a separate power source.

[0204] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0205] A cleaner according to one embodiment of the present disclosure (e.g., a vacuum cleaner (1) of FIG. 1) may include a cleaner body (10) including a suction fan configured to suck in external air by being driven to rotate and a suction motor configured to drive the suction fan to rotate, and a blower device (100) configured to be coupled or detachably disposed with the cleaner body (10) and to suck in external air and discharge the sucked air. The blower device (100) may include a connector (103) formed to be electrically connected to the cleaner body (10), a blower motor (140) electrically connected to the cleaner body (10) through the connector (103), a blower fan (160) configured to rotate by driving the blower motor (140) and configured to discharge sucked external air, a first inlet (120a) forming an opening for sucking external air into the blower fan (160), and a discharge portion (120) forming an opening for discharging the sucked air. The blower motor (140) may be configured to be driven to rotate by power supplied from the cleaner body (10) through the connector (130).

[0206] In a vacuum cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a second inlet (110a) forming an opening through which the external air is introduced toward the blower motor (140). The second inlet (110a) may be positioned at a different position from the first inlet (120a).

[0207] In a cleaner (1) according to one embodiment of the present disclosure, the first inlet (120a) may be formed on a side of the blower device (100) located near the blower fan (160), and the second inlet (110a) may be formed on a side of the blower device (100) located near the blower motor (140).

[0208] In a cleaner (1) according to one embodiment of the present disclosure, the first inlet (120a) may be formed on a side of the blower device (100) located near the blower fan (160), and the second inlet (110a) may be formed on a side of the blower device (100) located near the blower motor (140).

[0209] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a partition (130) disposed between the blower motor (140) and the blower fan (160) and limiting mixing between external air flowing into the first inlet (120a) and external air flowing into the second inlet (110a).

[0210] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a motor cooling passage for allowing external air flowing into the second suction port (110a) to pass near the blower motor (140) and flow to the discharge portion (120).

[0211] In a cleaner (1) according to one embodiment of the present disclosure, each of the first inlet (120a) and the second inlet (110a) may be formed in multiple numbers along the circumference of the side of the blower device (100).

[0212] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a first filter disposed near the first inlet (120a) and filtering foreign substances contained in the external air when the external air is sucked in, and a second filter disposed near the second inlet (110a) and filtering foreign substances contained in the external air when the external air is sucked in.

[0213] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a coupling nozzle (190) arranged to be coupled with the discharge portion (120). The coupling nozzle (190) may include a nozzle inlet (191) formed to be coupled with the discharge portion (120), and a nozzle outlet (193) forming an outlet through which the compressed air is discharged to the outside of the cleaner (1). The cross-sectional area of ​​the nozzle outlet (193) may be relatively small with respect to the cross-sectional area of ​​the nozzle inlet (191).

[0214] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (100) may further include a suction device (180) that forms a path for sucking air near the discharge portion (120) into the interior of the cleaner body (10). The suction device (180) may include a cylindrical extension pipe (183) that is arranged to surround the discharge portion (120) and is formed so that one side is open, and a bypass suction path (181) that forms a path through which air sucked into the extension pipe (183) flows.

[0215] In a cleaner (1) according to one embodiment of the present disclosure, the bypass suction path (181) may be arranged along a side of the blower device (100). An inlet (181a) of the bypass suction path (181) may be connected to the extension pipe (185), and an outlet (181b) of the bypass suction path (181) may be connected to a communication hole formed on a side of the blower device (100).

[0216] In a cleaner (1) according to one embodiment of the present disclosure, the outlet (181b) of the bypass suction path (181) may be positioned closer to the cleaner body (10) than the first suction port (120a).

[0217] In a cleaner (1) according to one embodiment of the present disclosure, the cross-sectional area of ​​the extension pipe (185) may be relatively larger than the cross-sectional area of ​​the discharge portion (120).

[0218] In a cleaner (1) according to one embodiment of the present disclosure, when the cleaner (1) is operated, the suction device (180) may be configured to suck in air present near the extension tube (185) by the suction force generated by the suction motor.

[0219] In a cleaner (1) according to one embodiment of the present disclosure, when the blower device (100) is coupled to the cleaner body (10), the blower device (100) and the cleaner body (10) may be formed to be electrically connected by the connector (103).

[0220] In a vacuum cleaner (1) according to one embodiment of the present disclosure, the blower fan (160) rotates by being driven by the blower motor (140), and when the blower fan (160) rotates, the blower fan (160) may be configured to compress external air sucked into the first inlet (120a).

[0221] A cleaner (1) according to one embodiment of the present disclosure may include a cleaner body (10) including a suction fan configured to suck in external air by being driven to rotate and a suction motor configured to drive the suction fan to rotate, and a blower device (200-1) configured to be coupled or detachably arranged with the cleaner body (10) and to suck in external air and discharge the sucked air. The blower device (200-1) comprises: a turbine fan (240) configured to rotate by sucking in external air by the suction force generated by the motor; a turbine-side inlet (210a) forming an opening for sucking external air into the interior of the turbine fan (240); a blower fan (260) connected to the turbine fan (240) by a rotary shaft (250) and configured to rotate together in response to the rotation of the turbine fan; a blower-side inlet (220a) forming an opening for sucking external air into the interior of the blower fan (260); a discharge portion (220) forming an opening for discharging external air sucked into the blower-side inlet (220a) by the blower fan (260); an extension pipe (285) arranged to surround the discharge portion (220) and formed so that one side is open; and a path for flowing air sucked into the extension pipe (285). It may include a bypass suction duct (281).

[0222] In a cleaner (1) according to one embodiment of the present disclosure, the turbine side inlet (210a) may be formed on a side of the blower device (200-1) located near the turbine fan (240), and the blower side inlet (220a) may be formed on a side of the blower device (200-1) located near the blower fan (260).

[0223] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (200-1) may further include a partition (230) disposed between the turbine fan (240) and the blower fan (260) and limiting mixing between external air flowing into the blower-side inlet (220a) and external air flowing into the turbine-side inlet (210a).

[0224] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (200-1) may further include a turbine-side filter that is arranged near the turbine-side inlet (210a) and filters foreign substances contained in the external air when the external air is sucked in. The blower device may further include a fan-side filter that is arranged near the blower-side inlet (220a) and filters foreign substances contained in the external air when the external air is sucked in.

[0225] In a cleaner (1) according to one embodiment of the present disclosure, the blower device (200-1) may further include a coupling nozzle (190) arranged to be coupled with the discharge portion (220). The coupling nozzle (190) may include a fastening member (191) coupled with the discharge port, and a discharge port (193) through which the compressed air is discharged to the outside of the cleaner. The cross-sectional area of ​​the discharge port (193) may be relatively small with respect to the cross-sectional area of ​​the fastening member (191).

[0226] A cleaner (1) according to one embodiment of the present disclosure may include a cleaner body (10), a suction motor that is arranged inside the cleaner body (10) and generates suction force, and a blower device (100) that is arranged to be coupled or detachable from the cleaner body (10) and is configured to suck in external air and discharge compressed air. The blower device (100) may include a connector (103) formed to be electrically connected to the cleaner body (10) when coupled to the cleaner body (10), a blower motor (140) electrically connected to the cleaner body (10) through the connector (103), a blower fan (160) configured to rotate by driving the blower motor (140) and configured to compress sucked external air, a first inlet (120a) forming an opening for sucking external air into the blower fan (160), and a discharge portion (120) forming an opening for discharging the compressed air. The blower motor (140) may be configured to be driven to rotate by power supplied from the cleaner body (10) through the connector (130).

[0227] In a cleaner (1) according to one embodiment of the present disclosure, the bypass suction path (181) may include a first path arranged parallel to the height direction of the blower device, and a second path connected to the first path and arranged perpendicular to the first path.

[0228] In a cleaner (1) according to one embodiment of the present disclosure, the extension tube (185) may have a cylindrical shape.

Claims

1. In the vacuum cleaner (1), A cleaner body (10) including a suction fan configured to suck in external air by being driven to rotate and a suction motor configured to drive the suction fan to rotate; and It includes a blower device (100) that is arranged to be combined or detachable with the above-mentioned cleaner body (10) and is configured to suck in external air and discharge the sucked air. The above blower device (100) is A connector (103) formed to be electrically connected to the above-mentioned vacuum cleaner body (10); A blower motor (140) electrically connected to the vacuum cleaner body (10) through the connector (103); A blower fan (160) configured to rotate by driving the blower motor (140) and configured to discharge sucked external air; A first inlet (120a) forming an opening for external air to be sucked into the interior of the blower fan (160); and It includes a discharge portion (120) that forms an opening for discharging the inhaled air, The above blower motor (140) is configured to be driven to rotate by power supplied from the cleaner body (10) through the connector (130).

2. In paragraph 1, The above blower device (100) is It further includes a second inlet (110a) forming an opening for the external air to flow in toward the blower motor (140), The second inlet (110a) is positioned at a different location from the first inlet (120a), in a cleaner (1).

3. In paragraph 2, The first inlet (120a) is formed on the side of the blower device (100) located near the blower fan (160), The second inlet (110a) is formed on the side of the blower device (100) located near the blower motor (140), the cleaner (1).

4. In paragraph 3, The above blower device (100) is A vacuum cleaner (1) further comprising a partition (130) disposed between the blower motor (140) and the blower fan (160) and limiting mixing between external air flowing into the first inlet (120a) and external air flowing into the second inlet (110a).

5. In paragraph 4, The above blower device (100) is A vacuum cleaner (1) further comprising a motor cooling passage for allowing external air flowing into the second suction port (110a) to pass near the blower motor (140) and flow to the discharge portion (120).

6. In paragraph 3, The cleaner (1) in which each of the first inlet (120a) and the second inlet (110a) is formed in multiple numbers along the circumference of the side of the blower device (100).

7. In any one of paragraphs 2 to 6, The above blower device (100) is A first filter arranged near the first inlet (120a) and filtering foreign substances contained in the outside air when the outside air is sucked in; and A vacuum cleaner (1) further comprising a second filter disposed near the second inlet (110a) and filtering foreign substances contained in the outside air when the outside air is sucked in.

8. In paragraph 1, The above blower device (100) further includes a coupling nozzle (190) that is arranged to be coupled with the discharge portion (120), The above-mentioned combination nozzle (190) includes a nozzle inlet (191) formed to be combined with the discharge portion (120), and a nozzle outlet (193) forming an outlet through which the compressed air is discharged to the outside of the cleaner (1). The cross-sectional area of ​​the nozzle outlet (193) is relatively small compared to the cross-sectional area of ​​the nozzle inlet (191), cleaner (1).

9. In paragraph 1, The above blower device (100) further includes a suction device (180) that forms a path for sucking air near the discharge portion (120) into the interior of the cleaner body (10). The above suction device (180) is a vacuum cleaner (1), which includes a cylindrical extension pipe (183) arranged to surround the discharge portion (120) and formed so that one side is open, and a bypass suction path (181) that forms a path through which air sucked into the extension pipe (183) flows.

10. In paragraph 9, The above bypass suction path (181) is arranged along the side of the blower device (100), A cleaner (1), wherein the inlet (181a) of the bypass suction path (181) is connected to the extension pipe (185), and the outlet (181b) of the bypass suction path (181) is connected to a communication hole formed on the side of the blower device (100).

11. In paragraph 9 or 10, The outlet (181b) of the above bypass suction path (181) is located closer to the cleaner body (10) than the first suction port (120a), in the cleaner (1).

12. In paragraph 9, The cross-sectional area of ​​the above extension pipe (185) is relatively larger than the cross-sectional area of ​​the discharge portion (120), cleaner (1).

13. In paragraphs 9 to 12, When the above vacuum cleaner (1) is in operation, the suction device (180) A vacuum cleaner (1) configured to suck in air present in the vicinity of the extension tube (185) by the suction force generated by the suction motor.

14. In paragraphs 1 to 13, A cleaner (1) in which, when the blower device (100) is combined with the cleaner body (10), the blower device (100) and the cleaner body (10) are formed to be electrically connected by the connector (103).

15. In paragraph 14, The above blower fan (160) is rotated by driving the blower motor (140), and when the blower fan (160) rotates, the blower fan (160) is configured to compress external air sucked into the first inlet (120a), a vacuum cleaner (1).

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