Cleaner

Abstract

The present invention relates to a cleaner comprising: a suction unit connected to an extension pipe and having a suction flow path through which air can flow; a dust separation unit having at least one cyclone unit; a suction motor for providing a flow force of air; and a main body housing having the suction unit on one side thereof and having the dust separation unit and the suction motor disposed therein, wherein an end portion of the suction unit opposite to a side of the main body housing is formed to be inclined along a flow direction of air flowing in the suction unit, so that small spaces, narrow spaces, or crevices can be cleaned without mounting a separate cleaning module on the cleaner main body.

Description

vacuum cleaner

[0001] The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner capable of cleaning small spaces or narrow spaces or crevices without installing a separate cleaning module on the vacuum cleaner body.

[0002] A vacuum cleaner is a device that cleans by sucking up dust or foreign substances in the area to be cleaned or wiping them away.

[0003] A vacuum cleaner includes an impeller and a motor that rotates the impeller to provide the driving force to suck up dust. The vacuum cleaner generates suction by exhausting internal air through the motor's action, thereby lowering internal pressure. This suction force then sucks in dust and other foreign substances from the cleaning surface along with the outside air through the suction device. The outside air and the sucked foreign substances can then be removed by a dust collector or other device.

[0004] Depending on their shape, vacuum cleaners can be classified into canister type vacuum cleaners, upright type vacuum cleaners, handheld vacuum cleaners, and stick type vacuum cleaners.

[0005] Meanwhile, due to the recent increase in demand for handheld vacuum cleaners, there is a continuous demand for miniaturization and lightweight electronic component modules built into vacuum cleaners, while at the same time, there is a demand for increased motor rotation speed and increased inverter capacity to improve suction power.

[0006] European Patent Publication No. EP 4027852A discloses a vacuum cleaner comprising a body (14) of a vacuum cleaner (16) to which a bong assembly (10) is attached.

[0007] The above cleaner has a bong assembly (10) composed of a first part (12) and a second part (26), and cleaning cannot be performed when the bong assembly (10) is not attached to the main body (14), so attachment or connection of the main body (14) and the bong assembly (10) is required.

[0008] In addition, there was a problem that the diameter of the bong assembly (10) increased as the nozzle (30) was built into the bong assembly (10) during cleaning, making the bong assembly (10) larger in volume and heavier.

[0009] The present invention was created to improve the problems of conventional vacuum cleaners as described above, and its purpose is to provide a vacuum cleaner capable of cleaning crevices without installing a separate cleaning module on the vacuum cleaner body.

[0010] In addition, the purpose is to provide a cleaner that can prevent scratches on the suction part by sealing between the suction part and the cleaning module or between the suction part and the extension pipe.

[0011] In addition, the purpose is to provide a cleaner that increases suction power when the suction part comes into contact with the object to be cleaned and can evenly seal when the suction part is connected to an extension tube or cleaning module.

[0012] In order to achieve the above-described object, a vacuum cleaner according to the present invention comprises: a suction unit having an extension pipe connected thereto and a suction path formed through which air can flow; a dust separation unit having at least one cyclone unit; a suction motor providing air flow force; and a main body housing having the suction unit on one side and the dust separation unit and the suction motor disposed therein; wherein the suction unit may be formed such that an end on the opposite side of the main body housing is inclined along a direction of air flow through the suction unit.

[0013] The direction of flow of air flowing through the above suction unit can be arranged to intersect the motor shaft of the above suction motor.

[0014] The above cleaner further includes a handle coupled to the main body housing, wherein the handle includes: a grip portion disposed opposite the main body housing; a first extension portion protruding and connected toward the main body housing from one end of the grip portion and having an operating portion; and a second extension portion protruding and connected toward the main body housing from the other end of the grip portion; wherein the suction portion may be formed such that an end thereof gradually protrudes toward one side of the grip portion.

[0015] The above vacuum cleaner further includes a dust bin for storing dust separated from the dust separation unit; and a discharge cover for opening and closing the lower end of the dust bin; and the suction unit may be formed such that the end gradually protrudes upward.

[0016] The above main body housing is arranged in the vertical direction so that the suction motor is arranged on the upper inside, and the suction part can be formed so that the end gradually protrudes upward.

[0017] The above suction unit may be provided with a sealing member at the end of the suction unit so as to come into contact with the object to be cleaned or to support between the end of the suction unit and the extension pipe.

[0018] The above sealing member is formed to surround the end of the suction portion, and can be arranged at an angle along the end of the suction portion.

[0019] The above extension pipe may be characterized in that it has a support portion that supports an end of the suction portion, the support portion has an insertion groove formed so that the sealing member is inserted, the sealing member has an end surface formed to be inclined along the end of the suction portion, and the support portion has an inclined surface corresponding to the end surface of the suction portion in the insertion groove.

[0020] In addition, a cleaner according to the present invention includes a cleaning module for sucking in external air; a cleaner body for providing suction force to the cleaning module; and an extension pipe connecting the cleaning module and the cleaner body; wherein the cleaner body includes a dust separation unit having at least one cyclone unit; a suction motor for providing air flow force; a body housing in which the dust separation unit and the suction motor are disposed; and a suction unit provided on one side of the body housing and coupled with the extension pipe or the cleaning module, and having a suction path formed therein through which air can flow; wherein the suction unit may include a sealing member formed along the circumference of an end to contact an object to be cleaned or to support the extension pipe or the cleaning module.

[0021] In addition, a cleaner according to the present invention includes a cleaning module for sucking in external air; a cleaner body for providing suction force to the cleaning module; and an extension pipe for connecting the cleaning module and the cleaner body; wherein the cleaner body includes a suction part having a suction path formed therein through which air can flow; a dust separation part having at least one cyclone part; a suction motor for providing a flow force of air; and a main body housing having the suction part on one side and the dust separation part and the suction motor disposed therein; wherein the suction part may be formed such that an end coupled to the extension pipe or the cleaning module is inclined with respect to a flow direction of air flowing through the suction part.

[0022] As described above, the vacuum cleaner according to the present invention can suck up foreign substances on the object to be cleaned through the suction unit without installing a separate cleaning module on the vacuum cleaner body. In particular, the end of the suction unit is formed at an angle so that it can clean even crevices, thereby providing convenience to the user. In particular, the user can use the vacuum cleaner efficiently without having to attach or detach another cleaning module to the suction unit.

[0023] Additionally, the sealing member at the end of the suction unit seals the space between the cleaning module or extension tube, preventing scratches. Furthermore, compared to the user touching the suction unit to the object being cleaned, the sealing member absorbs shock and vibration, reducing noise and fatigue experienced by the user when operating the vacuum cleaner.

[0024] Additionally, the end surfaces of the sealing member, suction unit, and insertion member, along with their corresponding surfaces, are formed at an angle, thereby widening the contact area when the suction unit comes into contact with the cleaning target, thereby increasing suction power and enhancing cleaning efficiency. Furthermore, the suction unit can be evenly sealed when attached to an extension tube or cleaning module, thereby providing a stable connection structure.

[0025] FIG. 1 is a side view of a vacuum cleaner according to one embodiment of the present invention.

[0026] Figure 2 is a side view of a vacuum cleaner body according to one embodiment of the present invention.

[0027] Figure 3 is a perspective view of a vacuum cleaner body according to one embodiment of the present invention.

[0028] FIG. 4 is a cross-sectional view illustrating the internal structure of a vacuum cleaner body according to one embodiment of the present invention.

[0029] FIG. 5 is a partial side view showing an enlarged view of a suction unit in a vacuum cleaner according to one embodiment of the present invention.

[0030] Fig. 6 is a side view showing an example of use of a vacuum cleaner body according to one embodiment of the present invention.

[0031] Fig. 7 is a cross-sectional view for explaining the connection structure of a suction unit and an extension pipe of a vacuum cleaner according to one embodiment of the present invention.

[0032] Figure 8 is an enlarged view of a portion of Figure 7.

[0033] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0034] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0035] The terminology used in this application is solely for the purpose of describing specific embodiments and is not intended to limit the present invention. Singular expressions may include plural expressions, unless the context clearly dictates otherwise.

[0036] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries, such as those defined in the present application, may be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and, unless explicitly defined herein, may not be interpreted in an idealized or overly formal sense.

[0037] FIG. 1 is a side view of a cleaner according to an embodiment of the present invention, FIG. 2 is a side view of a cleaner body according to an embodiment of the present invention, FIG. 3 is a perspective view of a cleaner body according to an embodiment of the present invention, FIG. 4 is a cross-sectional view illustrating the internal structure of a cleaner body according to an embodiment of the present invention, FIG. 5 is a partial side view illustrating an enlarged view of a suction part in a cleaner according to an embodiment of the present invention, FIG. 6 is a side view illustrating an example of use of a cleaner body according to an embodiment of the present invention, FIG. 7 is a cross-sectional view illustrating a fastening structure of a suction part and an extension pipe of a cleaner according to an embodiment of the present invention, and FIG. 8 is an enlarged view of a part of FIG. 7.

[0038] Referring to FIGS. 1 to 4, a cleaner (1) according to one embodiment of the present invention may include a cleaner body (100) having a suction motor (142) for generating suction force, a cleaning module (300) connected to the cleaner body (100) for sucking air and foreign substances from the floor, and an extension pipe (200) connecting the cleaner body (100) and the cleaning module (300).

[0039] The structure of the vacuum cleaner body (100) is described as follows.

[0040] Meanwhile, in this specification, “floor surface” may be understood to mean not only the floor surface of a living room or room, but also a cleaning surface such as a carpet, or a cleaning surface of a cleaning target (2).

[0041] Additionally, in one embodiment of the present invention, the direction can be defined based on the time when the bottom surface (lower surface) of the dustbin (170) and the battery housing (180) are placed on the ground.

[0042] At this time, the front may refer to the direction in which the suction unit (120) is arranged based on the suction motor (142), and the rear may refer to the direction in which the handle (160) is arranged based on the suction motor (142). In addition, when looking at the suction unit (120) from the suction motor (142), the direction in which it is arranged on the right may be referred to as the right, and the direction in which it is arranged on the left may be referred to as the left. In addition, in one embodiment of the present invention, the upper and lower sides may be defined along the direction perpendicular to the ground when the bottom surface (lower surface) of the dust bin (170) and the battery housing (180) are placed on the ground.

[0043] The vacuum cleaner (1) may include a vacuum cleaner body (100). The vacuum cleaner body (100) may have a path formed therein to guide the sucked air to be discharged to the outside.

[0044] Specifically, the vacuum cleaner body (100) may include a body housing (110), a suction unit (120), a dust separation unit (130), a fan driving unit (140), an air exhaust cover (150), a handle (160), a dust bin (170), a battery housing (180), and a battery (190).

[0045] The main body housing (110) may form the exterior of the vacuum cleaner body (100). The main body housing (110) may provide a space capable of accommodating a fan drive unit (140) and a pre-filter (145) therein. For example, the main body housing (110) may be configured in a shape similar to a cylinder.

[0046] The suction unit (120) may protrude outwardly from the main body housing (110). For example, the suction unit (120) may be formed in a cylindrical shape with an open interior. The suction unit (120) may be coupled to an extension pipe (200). The suction unit (120) may provide a path (P1) through which air containing dust may flow.

[0047] The dust separation unit (130) is connected to the suction unit (120) and is configured to apply the principle of a dust collector that utilizes centrifugal force to separate dust sucked into the interior of the vacuum cleaner body (100) through the suction unit (120). The internal space of the dust separation unit (130) can be connected to the internal space of the dust bin (170).

[0048] For example, the dust separation unit (130) may be equipped with at least one cyclone unit capable of separating dust by cyclone flow. In addition, the internal space of the dust separation unit (130) may be communicated with the flow path (P2) formed in the suction unit (120). Therefore, the air and dust sucked through the suction unit (120) flow spirally along the inner surface of the dust separation unit (130). Therefore, a cyclone flow may occur in the internal space of the dust separation unit (130).

[0049] The fan drive unit (140) is arranged on the euro and can generate a fluid force to move air within the euro.

[0050] The fan drive unit (140) may include an impeller (141) and a suction motor (142) that rotates the impeller (141).

[0051] The impeller (141) may be placed on top of the suction motor (142). The shaft of the suction motor (142) may be inserted into the center of the impeller (141) so that the center of the impeller (141) and the shaft of the suction motor (142) are coaxially arranged. At this time, the shaft of the suction motor (142) may be fixed to the center of the impeller (141). With this configuration, when the suction motor (142) is driven, the impeller (141) rotates together with the shaft of the suction motor (142) to generate air flow force. At this time, the shaft of the suction motor (142) may be placed in the vertical direction of the main body housing (110), but is not limited thereto.

[0052] The suction motor (142) may include, for example, a ring-shaped stator, a shaft penetrating the center of the stator, and a rotor that is mounted on the shaft and generates rotational force by the stator. Meanwhile, in the present embodiment, the suction motor (142) uses a brushless direct current motor (BLDC motor), but is not limited thereto, and various types of motors may be applied.

[0053] The motor housing (143) can accommodate a suction motor (142) and support a bearing (not shown) installed at the bottom or top of the suction motor (142).

[0054] The side wall of the motor housing (143) is formed in a cylindrical shape, and the stator of the suction motor (142) can be fixed to the inner surface of the side wall. In addition, when the suction motor (142) is accommodated and installed in the motor housing (143), a structure for supporting a bearing can be provided at the lower or upper portion of the motor housing (143). In addition, although not shown, a component for generating air flow and a diffuser for dispersing the generated air flow can be further provided at the lower or upper portion of the motor housing (143).

[0055] Meanwhile, an air outlet (147) may be formed on the upper surface or the lower surface of the motor housing (143). For example, the air outlet (147) may be formed in the shape of a hole having a predetermined width along the circumferential direction on the upper surface or the lower surface of the motor housing (143). That is, the air outlet (147) may be a hole formed in an area between a predetermined inner radius and a predetermined outer radius centered on a predetermined center point on the upper surface or the lower surface of the motor housing (143). Meanwhile, the air outlet (147) may be formed in a plurality of shapes at predetermined angular intervals. That is, the air outlet (147) may be an arc-shaped hole formed in a predetermined angular range centered on the center point, and the plurality of air outlets (147) may be formed in a shape close to a circle with the center point as the origin as a whole.

[0056] The impeller cover (not shown) may be configured, for example, to cover the upper portion of the motor housing (143). An air intake port (146), which is a passage for sucking air into the interior of the fan drive unit (140), may be formed in the lower central portion or the upper central portion of the impeller cover, for example.

[0057] The fan drive unit (140) can suck in air through an air intake port (146) provided in the lower central portion or upper central portion of the impeller cover, and discharge the air through an air discharge port (147) provided along the circumferential direction on the upper or lower surface of the motor housing (143). With this configuration, the heat generating elements mounted on the printed circuit board (400) described later can be effectively dissipated through the air flowing within the fan drive unit (140).

[0058] The vacuum cleaner (1) may include a pre-filter (145) that filters air before the air is sucked in by the suction motor (142). The pre-filter (145) may be arranged, for example, to surround the impeller (141). Air on the suction path (P3) may, for example, pass through the pre-filter (145) to reach the impeller (141). The pre-filter (145) may be arranged inside the vacuum cleaner body (100). Specifically, the pre-filter (145) may be arranged below or above the suction motor (142). That is, it may be arranged between the dust separation unit (130) and the suction motor (142).

[0059] The vacuum cleaner body (100) may include air guides (148a, 148b) that guide air flowing out from the dust separation unit (130). The air guides (148a, 148b) may be arranged between the body housing (110) and the motor housing (143). The air guides (148a, 148b) may form an intake path (P3) that guides air from the dust separation unit (130) to the impeller (141). The air guides (148a, 148b) may form an exhaust path (P4) that guides air passing through the impeller (141) to the exhaust port (151).

[0060] Specifically, the air guide (148) may include an outer guide (148a) and an inner guide (148b). The outer guide (148a) may be a wall that may be coupled to the inner surface of the main body housing (110) and forms a space between it and the inner guide (148b) to form an intake passage (P3) through which air passing through the dust separation unit (130) flows into the air intake port (146). The inner guide (148b) may be a wall that accommodates a motor housing (143) and a printed circuit board (400) therein and forms an exhaust passage (P4) that guides air discharged from the air discharge port (147) to the exhaust port (151).

[0061] At this time, the intake passage (P3) and the exhaust passage (P4) may be formed at predetermined intervals along the perimeter of the motor housing (143) with the motor housing (143) as the center, as illustrated in FIG. 3. For example, three intake passages (P3) and three exhaust passages (P4) may be formed alternately along the perimeter of the motor housing (143).

[0062] With this configuration, the air guide (148) can form a path (P3, P4) so ​​that the air flowing out from the dust separation unit (130) rises through the impeller (141) and then rises again to the exhaust port (151).

[0063] Accordingly, the air and dust sucked in through the path (P1) inside the suction unit (120) by the operation of the suction motor (142) can flow through the path (P2) inside the dust separation unit (130) and be separated from each other, for example. The air from which dust has been separated in the dust separation unit (130) can move upward and be introduced into the suction path (P3) inside the fan driving unit. The suction path (P3) can guide the air toward the pre-filter (145). The air that has sequentially passed through the pre-filter (145) and the impeller (141) can be introduced into the exhaust path (P4) and can be discharged to the outside through the exhaust port (151) after passing through the HEPA filter (153).

[0064] Meanwhile, the vacuum cleaner (1) according to an embodiment of the present invention may include a printed circuit board (PCB) (400) for controlling the suction motor (142). The printed circuit board (400) may be placed between the suction motor (142) and the dust separation unit (130). The printed circuit board (400) will be described in detail later.

[0065] The air exhaust cover (150) can form the upper exterior of the vacuum cleaner body (100) and cover the upper part of the motor housing (143) and the impeller cover.

[0066] The air exhaust cover (150) can be placed on one axial side of the main body housing (110).

[0067] An exhaust port (151) through which air inside the euro is discharged to the outside of the cleaner body (100) may be formed in the air exhaust cover (150).

[0068] The exhaust ports (151) may be arranged, for example, to face a specific direction. For example, a plurality of exhaust ports (151) may be divided from each other in the circumferential direction by a plurality of exhaust guides (152). The plurality of exhaust ports (151) may be arranged at a certain interval from each other along the circumferential direction.

[0069] The air exhaust cover (150) may accommodate a filter for filtering air before it is discharged through the exhaust port (151). For example, the air exhaust cover (150) may accommodate a HEPA filter (153).

[0070] Air passing through the fan drive unit (140) can pass through the HEPA filter (153) and then be discharged to the outside through the exhaust port (151). The HEPA filter (153) can be placed on the exhaust path (P4).

[0071] A filter accommodation space for accommodating a HEPA filter (153) may be formed in the air exhaust cover (150). The filter accommodation space is formed so that the lower side is open, so that the HEPA filter (153) can be accommodated in the lower side of the air exhaust cover (150).

[0072] The exhaust port (151) may be formed to face the HEPA filter (153). For example, the HEPA filter (153) may be arranged on the lower side of the exhaust port (151). The HEPA filter (153) may be arranged to extend circumferentially along the exhaust port (151), for example.

[0073] The handle (160) can be gripped by the user. The handle (160) can be positioned at the rear of the suction motor (140). For example, the handle (160) can be formed in a shape similar to a cylinder. Alternatively, the handle (160) can be formed in a curved cylinder shape. The handle (160) can be positioned at a predetermined angle with respect to the main body housing (110), the suction motor (140), or the dust separation unit (130).

[0074] The handle (160) is coupled to the main body housing (110). The upper part of the handle (160) is coupled to the main body housing (110) and the lower part can be detachably coupled to the dust bin (170). The handle (160) may include a grip portion (161) formed in a pillar shape so that a user can grip it, a first extension portion (162) connected to one longitudinal (axial) end of the grip portion (161) and extending toward the suction motor (140), and a second extension portion (163) connected to the other longitudinal (axial) end of the grip portion (161) and extending toward the dust bin (170).

[0075] The grip portion (161) is positioned opposite the main body housing (110) and is a component that is gripped by the user's hand when the user uses the vacuum cleaner. The grip portion (161) may have a curved cylinder shape and may be formed in a columnar shape with a different cross-section depending on the height. The grip portion (161) may be provided with a finger support portion (164) that protrudes from one side toward the main body housing (110) to prevent the grip portion (161) from slipping when the user grips it. The finger support portion (164) is provided to guide the user's finger on the side of the grip portion (161) facing the main body housing (110), and may be formed by protruding in a curved structure from the grip portion (161) so as to support the user's finger.

[0076] The first extension portion (162) may be connected so that the upper end of the grip portion (161) protrudes toward the main body housing (110), and may be provided with an operating portion (165). The second extension portion (163) may be connected so that the lower end of the grip portion (161) protrudes toward the main body housing (110), and a battery housing (180) may be connected.

[0077] The upper surface of the handle (160) may form a portion of the appearance of the upper surface of the vacuum cleaner (1). This prevents the components of the vacuum cleaner (1) from coming into contact with the user's arm when the user holds the handle (160).

[0078] The operating unit (165) may be placed on the handle (160). The operating unit (165) may be placed on the first extension (162) or on an inclined surface formed in the upper region of the handle (160). The operating unit (165) is a component that receives a user's command. The operating unit (165) may include a plurality of buttons, and when the user presses a corresponding button, a corresponding command is executed. The operating unit (165) may be provided with an operation button and a stop button that control the operation of the suction motor (142) of the vacuum cleaner (1).

[0079] The dust bin (170) can be placed on the lower side of the main body housing (110). The dust bin (170) can be connected to the dust separation unit (130). The dust bin (170) can store dust separated from the dust separation unit (130).

[0080] The dustbin (170) may include a dustbin body (171).

[0081] The dustbin body (171) can provide a space for storing dust separated from the dust separation unit (130). For example, the dustbin body (171) can be formed in a shape similar to a cylinder.

[0082] For example, the dustbin body (171) may be provided with a lower surface that can be opened. In this case, a discharge cover (172) is provided on the lower surface of the dustbin body (171), so that the lower surface of the dustbin body (171) can be selectively opened.

[0083] The discharge cover (172) may be provided to open and close the lower surface of the dustbin body (171). The discharge cover (172) may be rotatably coupled to the lower side of the dustbin body (171). The discharge cover (172) is hinge-coupled to the dustbin body (171) and can open and close the lower side of the dustbin (170) by a rotational motion.

[0084] Meanwhile, depending on the embodiment, the dustbin (170) may further include a dustbin compression lever (not shown) and a compressor (174).

[0085] The dustbin compression lever may be positioned outside the dustbin (170) or the dust separation unit (130). The dustbin compression lever may be positioned outside the dustbin (170) or the dust separation unit (130) so as to move up and down. The dustbin compression lever may be connected to a compressor (174). When the dustbin compression lever moves downward due to an external force, the compressor (174) may also move downward. This may provide convenience to the user. The compressor (174) and the dustbin compression lever may return to their original positions by an elastic member (not shown). Specifically, when the external force applied to the dustbin compression lever is removed, the elastic member may move the dustbin compression lever and the compressor (174) upward.

[0086] The compressor (174) can be placed inside the dustbin body (171). The compressor (174) can move in the internal space of the dustbin body (171). Specifically, the compressor (174) can move up and down inside the dustbin body (171). Through this, the compressor can compress the dust inside the dustbin body (171) downward. In addition, when the discharge cover (172) is separated from the dustbin body (171) and the lower part of the dustbin (170) is opened, the compressor (174) can move from the upper part to the lower part of the dustbin (170) to remove foreign substances such as residual dust inside the dustbin (170). Through this, the suction power of the vacuum cleaner can be improved by preventing residual dust from remaining inside the dustbin (170). In addition, by preventing residual dust from remaining inside the dustbin (170), an unpleasant odor caused by the residual matter can be eliminated.

[0087] A battery (190) can be accommodated in the battery housing (180). The battery housing (180) can be placed on the lower side of the handle (160).

[0088] For example, the battery housing (180) may have a hexahedral shape with an open bottom. The rear of the battery housing (180) may be connected to the handle (160). In this case, the battery housing (180) may include a receiving portion that opens downward. With this configuration, the battery (190) may be removed through the receiving portion of the battery housing (180).

[0089] As another example, the battery housing (180) may be provided as an integral unit with the battery (190) housed therein.

[0090] The battery (190) is configured to supply power to the vacuum cleaner (1). Specifically, the battery (190) can supply power to the suction motor (140) and supply power to electronic circuits and electronic components through wires built into the vacuum cleaner (1). In addition, the battery (190) can supply power to the cleaning module (300).

[0091] When the battery (190) is coupled to the battery housing (180), the lower surface of the battery (190) may be exposed to the outside. Since the battery (190) may be placed on the floor when the vacuum cleaner (1) is placed on the floor, the battery (190) may be immediately separated from the battery housing (180). In addition, since the lower surface of the battery (190) is exposed to the outside and comes into direct contact with the external air of the battery (190), the cooling performance of the battery (190) may be improved.

[0092] Meanwhile, when the battery (190) is integrally fixed to the battery housing (180), the structure for attaching and detaching the battery (190) and the battery housing (180) can be reduced, so the overall size of the vacuum cleaner (1) can be reduced and its weight can be reduced.

[0093]

[0094] Meanwhile, the vacuum cleaner (1) may include an extension tube (200).

[0095] The extension pipe (200) can be coupled with the vacuum cleaner body (100) and the cleaning module (300). One end of the extension pipe (200) can be detachably coupled to the suction unit (120). And, the other end of the extension pipe (200) can be detachably coupled to the cleaning module (300).

[0096] For example, the extension pipe (200) may be formed in a long cylindrical shape. Accordingly, the internal space of the extension pipe (200) may be communicated with the internal space of the cleaning module (300). In addition, the extension pipe (200) may be communicated with a suction path formed in the suction part (120) of the cleaner body (100).

[0097] When suction force is generated through the suction motor (142), suction force can be provided to the cleaning module (300) through the suction unit (120) and the extension pipe (200). Accordingly, external dust and air can be introduced into the cleaner body (100) through the cleaning module (300) and the extension pipe (200). In addition, dust and air introduced through the cleaning module (300) can pass through the extension pipe (200) and then be introduced into the cleaner body (100). In addition, dust and air introduced into the cleaner body (100) and passed through the suction unit (120) are separated in the dust separation unit (130), and then the dust is stored in the dust bin (170), and the air can be discharged to the outside through the air discharge cover (150).

[0098] The cleaning module (300) may be, for example, a suction nozzle, and may move along the floor surface and suck up dust present on the floor surface. In addition, the cleaning module (300) may be connected to the vacuum cleaner body (100) via an extension tube (200).

[0099] Meanwhile, although not shown, the cleaning module (300) can be directly connected to the suction unit (120) without an extension pipe (200). In addition, although not shown, various types of cleaning modules (not shown) in addition to the cleaning module (300) can be connected to the suction unit (120). The cleaning module may mean a cleaning suction port (hereinafter referred to as a 'carpet suction port') that can clean carpets or bedding. It may also mean a cleaning suction port (hereinafter referred to as a 'pet suction port') that can intensively clean pet hair. It may also mean a floor suction port that is thinner than a normal suction port. Or, it may mean a multipurpose suction port equipped with an air suction port and a cleaning brush that can clean picture frames or furniture surfaces. Or, it may mean a crevice suction port that is thin and long to clean a crevice that a basic suction port cannot enter. These cleaning modules can be modified with a variety of suction ports, including suction ports that can suck up hard-to-reach areas, suction ports with bendable extension rods, etc.

[0100]

[0101] Meanwhile, the present invention is characterized in that the end of the suction part (120) provided in the cleaner body (100) is formed to be inclined. Accordingly, the cleaner body (100) can suck in air and foreign substances of the cleaning target (2) through the suction part (120) in a state in which the cleaning module (300) is not connected. In particular, the cleaner (1) can clean narrow spaces or crevices as the end of the suction part (120) is formed to be inclined.

[0102] The suction part (120) is formed integrally on one side of the vacuum cleaner body (100), and is formed so that its internal space is connected to the internal space of the vacuum cleaner body (100).

[0103] This suction unit (120) may be formed in a hollow cylindrical shape, and may be arranged so that a virtual line (A1) extending from its central axis intersects a virtual line (A2) extending from the motor axis of the suction motor (142). Specifically, the virtual line (A1) extending from the central axis of the suction unit (120) may be arranged so that the virtual line (A2) extending from the motor axis of the suction motor (142) is perpendicular to the virtual line (A2). At this time, the virtual line (A2) extending from the motor axis of the suction motor (142) may be arranged to be aligned with or parallel to the long axis of the cleaner body (100). In addition, the virtual line (A2) extending from the motor axis of the suction motor (142) may be aligned with the rotational axis of the impeller (141), the central axis of the dust bin (170), and the central axis of the dust separation unit (130).

[0104] The suction unit (120) has an inclined end (121) formed to be inclined along the direction of air flow through the suction unit (120) at the front end opposite the main body housing (110).

[0105] Specifically, the suction portion (120) may be formed so that the inclined end (121) gradually protrudes forward as it goes upward. In addition, the suction portion (120) may be formed so that the inclined end (121) gradually protrudes upward as it goes upward from the grip portion (161).

[0106] And, the most protruding part of the front end of the suction part (120) can be inserted into a gap or narrow space of the cleaning target (2) to suck in air and foreign substances.

[0107] In particular, the suction part (120) is formed with an inclined end surface (121a) to increase the contact area with the cleaning target (2).

[0108] The suction part (120) is formed so that the front end is inclined to form a predetermined angle (α) with an imaginary line (A1) extending the central axis of the suction part (120), and the end surface (121a) is also formed to form a predetermined angle (α) with an imaginary line (A1) extending the central axis of the suction part (120). At this time, the predetermined angle (α) may be, for example, 65 degrees. The predetermined angle (α) may be the angle formed by the central axis of the suction part (120) and the cleaning surface when the end of the suction part (120) supports the cleaning object (2). When the end of the suction part (120) supports the cleaning surface, the cleaner (1) must be spaced apart from the cleaning object (2), and one end of the suction part (120) must be sharp for gap cleaning while the gripping part (161) is parallel to the cleaning surface. Therefore, it is preferable that the predetermined angle (α) be formed at 65 degrees.

[0109] Accordingly, as illustrated in Fig. 6, when the front end of the suction unit (120) is brought into close contact with the cleaning surface of the cleaning target (2), the end face (121a) of the front end of the suction unit (120) can also be brought into close contact with the cleaning surface of the cleaning target (2). Accordingly, foreign substances on the cleaning surface of the cleaning target (2) can be efficiently sucked up.

[0110] In addition, the suction unit (120) is provided with a sealing member (123) at the front end to prevent damage to the cleaning object (2) or the suction unit (120) when in contact with the cleaning object (2), and to provide a sealing function when combined with an extension pipe (200) or a cleaning module (300).

[0111] The sealing member (123) is installed at the front end of the suction part (120) and comes into contact with the cleaning target (2) or supports between the end of the suction part (120) and the extension pipe (200).

[0112] This sealing member (123) may be formed of a material such as an elastically deformable plastic or rubber material. The sealing member (123) may be formed in a hollow ring shape and installed at the front end of the suction part (120), and the sealing member (123) is formed to surround the end of the suction part (120). This sealing member (123) is installed at the front end of the suction part (120) and is arranged at an angle along the end of the suction part (120).

[0113] Specifically, the suction part (120) has an insertion part (122) formed to protrude forward on the end face (121a) of the front end, and the sealing member (123) has an insertion groove (124) formed to be sunken in on the face facing the end face (121a) so that the insertion part (122) can be inserted.

[0114] In addition, the sealing member (123) has a support surface (123b) formed to be inclined so that the surface facing the end surface (121a) corresponds to the end surface (121a). That is, the support surface (123b) of the sealing member (123) is in close contact with the end surface (121a) of the front end of the suction portion (120).

[0115] In addition, the end surface (122a) of the protruding end of the insertion portion (122) is also formed to be inclined, but is formed parallel to the end surface (121a) of the suction portion (120). In addition, the fitting groove (124) has an inclined support surface (124a) formed to be inclined to correspond to the end surface (122a) of the insertion portion (122) on the inner surface. Accordingly, the sealing member (123) is evenly pressed between the cleaning target (2) and the end surface (122a) of the insertion portion (122).

[0116] The sealing member (123) can support the cleaning target (2) by forming an end surface of the front end inclined along the end surface of the suction portion (120). That is, the sealing member (123) has a contact surface (123a) at the front end, and the contact surface (123a) is formed inclined but parallel to the end surface (121a) of the suction portion (120) so as to come into contact with the cleaning target (2).

[0117] Meanwhile, when the extension pipe (200) is connected to the suction part (120), the front end of the suction part (120) is supported by the support part (210) provided in the extension pipe (200).

[0118] The support member (210) is positioned on the inside of the extension pipe (200). The support member (210) is formed by protruding a portion of the inside of the extension pipe (200) and is formed in a hollow ring shape. This support member (210) is positioned to face the front end of the suction member (120) inserted into the extension pipe (200).

[0119] The support member (210) is arranged at an angle toward the end of the extension pipe (200) as it goes downward. That is, the support member (210) may be formed at an angle so that the surface facing the end of the suction part (120) is parallel to the end surface (121a) of the suction part (120). The support member (210) may have an insertion groove (211) formed so that a sealing member (123) is inserted therein. When the extension pipe (200) is coupled to the suction part (120), the sealing member (123) can elastically support the space between the extension pipe (200) and the suction part (120).

[0120] In particular, the support portion (210) evenly supports the sealing member (123) and an inclined surface (212) corresponding to the end surface of the suction portion (120) is formed in the insertion groove (211) so that the sealing member (123) can be stably inserted. The insertion groove (211) has an inclined surface (212) formed on the inner surface so as to correspond to the contact surface (123a) of the sealing member (123). Accordingly, the sealing member (123) can be evenly pressed between the support portion (210) and the end surface of the suction portion (120).

[0121] This support member (210) may be provided on the inside of a connecting pipe connected to the extension pipe (200) or suction part (120) of the cleaning module (300), or may be provided on the inside of an end connected to the suction part (120) of the extension pipe (200).

[0122] Meanwhile, a locking lever (230) that is fastened to the suction unit (120) may be provided at the end of the connecting pipe or extension pipe (200) of the cleaning module (300).

[0123] For example, the lock lever (230) may be configured to include a lever body (231) and a lever cover (234). The lever body (231) may be rotatably installed on the outside of the extension tube (200), and the lever body (231) may be installed on the extension tube (200) via a spring hinge. The lever body (231) may be provided with a locking projection (233) on one end and a pressing portion (232) on the other end. The locking projection (233) is provided on one end of the lever body (231), passes through a through hole (240) formed in the extension tube (200), and is fastened to a locking groove (125) formed in the suction portion (120). The pressing portion (232) is installed on the other end of the lever body (231) in a state exposed to the outside so that the user's hand can press it, and may be provided with a friction protrusion for friction with the user's finger. The lever cover (234) is installed on the outside of the extension tube (200) so as to cover one end of the lever body (231).

[0124] According to this configuration, the lock lever (230) rotates when the user presses the pusher (232), so that the locking projection (233) is separated from the locking groove (125), and returns to its original state when the external force is removed. In addition, the locking projection (233) is formed so that the edge of the end side of the extension pipe (200) is inclined, so that the suction portion (120) can be fastened after being inserted into the extension pipe (200) even if the user does not press the pusher (232). That is, when the suction portion (120) is inserted into the extension pipe (200), the locking projection (233) is pressed against the end of the suction portion (120), so that the lever body (231) rotates, and the locking projection (233) is inserted into the locking groove (125) and fastened, so that the lever body (231) can return to its original position.

[0125]

[0126] Although the present invention has been described in detail through specific examples, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto, and 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 spirit of the present invention.

[0127] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. A suction unit in which an extension tube is connected and an suction path through which air can flow is formed; A dust separation unit having at least one cyclone section; A suction motor that provides air flow; and It includes a main body housing having the suction unit on one side and the dust separation unit and suction motor arranged inside; A vacuum cleaner characterized in that the suction unit is formed such that the opposite end of the main body housing is inclined along the direction of air flowing through the suction unit.

2. In paragraph 1, A vacuum cleaner characterized in that the direction of air flowing through the suction unit is arranged to intersect the motor shaft of the suction motor.

3. In paragraph 1, Further comprising a handle coupled to the main body housing; The above handle is, A grip portion positioned opposite to the main body housing; A first extension portion protruding and connected toward the main body housing from one end of the above-mentioned grip portion and having an operating portion; and A second extension portion protruding and connected toward the main body housing from the other end of the above-mentioned grip portion; The above suction part, A vacuum cleaner characterized in that the end portion is formed to gradually protrude toward one side of the above-mentioned grip portion.

4. In paragraph 1, A dust bin for storing dust separated from the above dust separation unit; and It further includes a discharge cover that opens and closes the lower end of the above dustbin; The above suction part, A vacuum cleaner characterized by having a short end that gradually protrudes upward.

5. In paragraph 1, The above main body housing is arranged in the vertical direction, and the suction motor is arranged inside the upper part, The above suction part, A vacuum cleaner characterized by having a short end that gradually protrudes upward.

6. In paragraph 1, The above suction part, A vacuum cleaner characterized in that a sealing member is provided at the end of the suction part to contact the object to be cleaned or to support between the end of the suction part and the extension pipe.

7. In paragraph 6, A vacuum cleaner characterized in that the sealing member is formed to surround the end of the suction unit and is arranged at an angle along the end of the suction unit.

8. In paragraph 7, The above extension pipe has a support member that supports the end of the suction member, The above support part has an insertion groove formed to allow the sealing member to be inserted, The above sealing member is formed such that the end surface is inclined along the end of the suction portion, A vacuum cleaner characterized in that the support part has an inclined surface corresponding to the end surface of the suction part in the insertion groove.

9. Cleaning module that sucks in outside air; A vacuum cleaner body that provides suction power to the above cleaning module; and An extension pipe connecting the cleaning module and the main body of the cleaner; The above vacuum cleaner body, A dust separation unit having at least one cyclone section; A suction motor that provides air flow; A main body housing in which the dust separator and the suction motor are placed inside; and A suction unit is provided on one side of the main body housing and is coupled to the extension pipe or the cleaning module, and has a suction path formed through which air can flow; The above suction part, A vacuum cleaner characterized by having a sealing member formed along the circumference of an end to contact the cleaning object or to support the extension pipe or the cleaning module.

10. Cleaning module that sucks in outside air; A vacuum cleaner body that provides suction power to the above cleaning module; and An extension pipe connecting the cleaning module and the main body of the cleaner; The above vacuum cleaner body, A suction part having a suction path formed through which air can flow; A dust separation unit having at least one cyclone section; A suction motor that provides air flow; and It includes a main body housing having the suction unit on one side and the dust separation unit and suction motor arranged inside; A vacuum cleaner characterized in that the suction unit has an end that is coupled to the extension pipe or the cleaning module formed to be inclined with respect to the direction of flow of air flowing through the suction unit.

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