Cleaner
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- LG ELECTRONICS INC
- Filing Date
- 2023-05-31
- Publication Date
- 2026-08-03
Smart Images
Figure 112023060083646-PAT00006_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a vacuum cleaner. Background Technology
[0003] Generally, a vacuum cleaner is a home appliance that uses electricity to suck up air to collect small debris or dust and fill it into a dust bin inside the product, and it is commonly referred to as a vacuum cleaner.
[0004] These vacuum cleaners can be classified into manual vacuum cleaners, which are used for cleaning by moving the vacuum cleaner directly, and automatic vacuum cleaners, which are used for cleaning by driving on their own. Manual vacuum cleaners can be classified into canister-type vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, and stick-type vacuum cleaners, depending on the form of the vacuum cleaner.
[0005] In the past, canister-type vacuum cleaners were widely used for household use, but recently, handheld and stick vacuum cleaners, which offer improved convenience by providing the dust bin and the main body as a single unit, are becoming more popular.
[0006] Canister-type vacuum cleaners have the main body and the suction nozzle connected by a rubber hose or pipe, and depending on the case, a brush can be attached to the nozzle for use.
[0007] Hand vacuum cleaners maximize portability; however, because they are lightweight but short, the cleaning area may be limited while sitting. Therefore, they are used to clean localized areas such as desks, sofas, or inside cars.
[0008] Stick vacuums can be used while standing, allowing for cleaning without bending over. Therefore, they are advantageous for cleaning large areas. While handheld vacuums are used for cleaning narrow spaces, stick vacuums can clean larger areas and reach high places that are out of reach. Recently, stick vacuums are also being offered in modular types, allowing users to actively switch between vacuum types for various purposes.
[0009] Cyclones used in vacuum cleaners can be classified into vertical cyclones and axial cyclones depending on the direction of air intake.
[0010] The structure of a tangential inflow cyclone can be found in Korean Registered Patent Publication No. 10-0673769 (hereinafter referred to as Patent Document 1). According to the disclosure in Patent Document 1, a tangential inflow cyclone is equipped with a tangential guide to form a spiral flow. In the case of a tangential inflow cyclone, air is introduced in the tangential direction of the outer edge through a structure such as a tangential guide, and the spiral flow is formed by a structure that introduces air in the tangential direction. The tangential inflow cyclone has the advantage of a simple structure and is suitable for installation in confined spaces, such as vacuum cleaners, as it is advantageous for circular arrangement. However, the tangential inflow cyclone has the disadvantage of causing a large pressure loss due to high-speed flow eccentric to one side.
[0011] The structure of an axial flow cyclone can be found in Korean Patent Publication No. 10-2008-0108284 (hereinafter referred to as Patent Document 2). According to the disclosure in Patent Document 2, the axial flow cyclone is equipped with a spiral ramp for forming a spiral flow. In the case of an axial flow cyclone, flow is introduced in the axial direction, and the axial flow cyclone is configured to generate a swirling flow using a spiral ramp, etc. Compared to a tangential inflow cyclone, the axial flow cyclone has the advantages of appropriate flow velocity and uniform suction, and thus has the advantage of low pressure loss. On the other hand, the axial flow cyclone has the disadvantage that it is difficult to manufacture guide vanes.
[0012] As such, in order to minimize pressure loss and improve the overall efficiency of the vacuum cleaner, it is desirable to use an axial cyclone. However, conventional vacuum cleaners using axial cyclones had the following various problems.
[0013] First, as disclosed in Patent Document 2, conventional vacuum cleaners having multiple axial cyclones are configured to separate dust by assembling multiple separately manufactured axial cyclones. The axial cyclones are each produced separately in molds of the same shape to have the same shape. Since each axial cyclone produced in the mold has a gap between the guide vanes, it had the disadvantage that a decrease in separation performance due to the structure was inevitable.
[0014] In addition, since vacuum cleaners are manufactured goods, each axial cyclone undergoes an assembly process after mass production. The axial cyclones disclosed in Patent Document 2 are also expected to undergo such a process. Each axial cyclone is formed by separately producing a vortex finder equipped with guide vanes and an outer wall, then inserting the vortex finder into the inner side of the outer wall and assembling them. Therefore, there was the inconvenience of the process of having to assemble each axial cyclone.
[0015] Furthermore, axial cyclones produced in molds had the disadvantage of not being able to possess complex shapes necessary to achieve high separation performance. Axial cyclones are generally produced using upper and lower molds, and the difficulty in achieving complex shapes is due to the limitations of mold production. Prior art literature
[0017] Republic of Korea Registered Patent Publication No. 10-0673769 Republic of Korea Published Patent Publication No. 10-2008-0108284 The problem to be solved
[0018] The present invention was created to improve upon the problems of conventional vacuum cleaners as described above, and aims to solve the problem of reduced separation performance of the cyclone section caused by the spacing between guide vanes by providing a vacuum cleaner comprising axial flow cyclones with a structure in which guide vanes overlap each other in one direction.
[0019] In addition, the present invention aims to solve the problem of providing a vacuum cleaner capable of maximizing the length of a guide channel that guides air into the interior of a cyclone body.
[0020] In addition, the present invention aims to solve the problem of providing a vacuum cleaner capable of reducing airflow loss in a guide channel by stably combining guide vanes that are manufactured separately.
[0021] In addition, the present invention aims to solve the problem of providing a vacuum cleaner capable of reducing airflow loss through a vortex finder. means of solving the problem
[0023] To solve the problem described above, the vacuum cleaner according to the present invention comprises: a suction part that guides air into the interior of a dust bin; a first cyclone part that separates dust from the air sucked in through the suction part; and a second cyclone part that separates dust from the air discharged from the first cyclone part; wherein the second cyclone part comprises: a cyclone body into which air discharged from the first cyclone part is introduced; a vortex finder in which at least a portion is disposed inside the cyclone body; and a guide vane member in which at least a portion is disposed between the cyclone body and the vortex finder and guides the air discharged from the first cyclone part into the interior of the cyclone body; wherein the guide vane member comprises: a first guide vane disposed in the cyclone body; and a second guide vane disposed in the vortex finder; and wherein the first guide vane and the second guide vane may be in contact and continuously extended.
[0024] The guide vane member further includes a third guide vane disposed in the vortex finder so as to be spaced apart adjacently from the second guide vane; and the first guide vane and the third guide vane may overlap each other along the coupling direction of the cyclone body and the vortex finder.
[0025] The air discharged from the first cyclone section is introduced into the interior of the cyclone body through a guide channel formed by the vortex finder and the guide vane member, and the guide channel may extend along a spiral direction.
[0026] The inner surface of the vortex finder at a position corresponding to the second guide vane can protrude outward.
[0027] The area of the exit of the above vortex finder may be larger than the area of the entrance of the above vortex finder.
[0028] One side of the guide vane member may be connected to the outer surface of the vortex finder along the spiral direction, and the other side of the guide vane member may be connected to the inner surface of the cyclone body along the spiral direction.
[0029] The first guide vane and the second guide vane can be formed to be in surface contact.
[0030] A step may be formed in the second guide vane having a shape corresponding to the edge of one side of the outer surface of the first guide vane.
[0031] The step of the second guide vane comprises: a first surface corresponding to the upper surface of the first guide vane; and a second surface corresponding to the side of the first guide vane and bent downward from the first surface; and the first guide vane may be in surface contact with the first surface and the second surface.
[0032] The second surface above can be formed parallel to the coupling direction of the cyclone body and the vortex finder.
[0033] At least a portion of the outer surface of the above-mentioned vortex finder may be recessed inward to correspond to the first guide vane. Effects of the invention
[0035] As explained above, according to the vacuum cleaner of the present invention, since one guide vane forms a structure in which it overlaps with another guide vane in one direction, it has the effect of solving the problem of reduced separation performance of the cyclone section caused by the gap between the guide vanes.
[0036] In addition, the present invention has the effect of maximizing the length of the guide channel for generating cyclone flow by connecting separately manufactured guide vanes.
[0037] In addition, since the present invention is coupled in a structure where one guide vane interlocks with another guide vane, stable coupling between guide vanes is possible, and the effect of reducing air flow loss entering the inside of the cyclone body is achieved.
[0038] In addition, the present invention has the effect of reducing flow loss that occurs as air passes through the vortex finder, as the cross-sectional area of the flow path widens from the inlet to the outlet of the vortex finder. Brief explanation of the drawing
[0040] FIGS. 1 and FIGS. 2 are drawings for explaining a vacuum cleaner in a vacuum cleaner system according to an embodiment of the present invention. FIG. 3 is a drawing for explaining the lower surface of the dust bin of a vacuum cleaner according to an embodiment of the present invention. FIG. 4 is an exploded view of a vacuum cleaner according to an embodiment of the present invention. FIG. 5 is a perspective view of a second cyclone section according to an embodiment of the present invention. Figure 6 is an exploded view of Figure 5. Fig. 7 is a front view of Fig. 6. FIG. 8 is a perspective view illustrating the combined appearance of a second cyclone section and a filter section according to an embodiment of the present invention. FIG. 9 is a bottom perspective view of a dust separation unit according to an embodiment of the present invention. FIG. 10 is a front view of a dust separation unit according to an embodiment of the present invention. FIG. 11 is a drawing for explaining the flow of air entering the inside of a cyclone body according to an embodiment of the present invention. Specific details for implementing the invention
[0041] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.
[0042] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.
[0043] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions unless the context clearly indicates otherwise.
[0044] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and may not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.
[0046] FIGS. 1 and 2 disclose drawings for explaining a vacuum cleaner in a vacuum cleaner system according to an embodiment of the present invention, FIG. 3 discloses a drawing for explaining the lower side of the dust bin of a vacuum cleaner according to an embodiment of the present invention, and FIG. 4 discloses an exploded view of a vacuum cleaner according to an embodiment of the present invention.
[0047] First, the structure of the vacuum cleaner (100) is described as follows with reference to FIGS. 1 to 4.
[0048] The vacuum cleaner (100) may refer to a vacuum cleaner that is manually operated by the user. For example, the vacuum cleaner (100) may refer to a handheld vacuum cleaner or a stick vacuum cleaner.
[0049] Meanwhile, in one embodiment of the present invention, the direction of the vacuum cleaner (100) can be defined based on when the bottom surface (lower side) of the dust bin (120) and the battery housing (130) are placed on the ground.
[0050] At this time, the front may refer to the direction in which the suction part (112) is positioned relative to the suction motor (114), and the rear may refer to the direction in which the handle (116) is positioned relative to the suction motor (114). Also, when looking at the suction part (112) from the suction motor (114), the direction positioned to the right may be called the right, and the direction positioned to the left may be called the left. Furthermore, in one embodiment of the present invention, the upper and lower sides may be defined along a direction perpendicular to the ground when the bottom surface (lower side) of the dust bin (120) and the battery housing (130) are placed on the ground.
[0051] The vacuum cleaner (100) may include a main body (110). The main body (110) may include a main body housing (111), a suction part (112), a first cyclone part (113), a suction motor (114), an air discharge cover (115), a handle (116), and an operating part (117).
[0052] The main body housing (111) can form the exterior of the vacuum cleaner (100). The main body housing (111) can provide a space to accommodate a suction motor (114) and a filter (not shown) inside. The main body housing (111) can be configured in a shape similar to a cylinder.
[0053] The suction part (112) may protrude outward from the main body housing (111). For example, the suction part (112) may be formed in a cylindrical shape with an open interior. The suction part (112) may be coupled to an extension tube (150). The suction part (112) may provide a passage through which air containing dust can flow. The suction part (112) may be coupled to the main body (110) such that the central part is located at the boundary between the dust container (120) and the main body housing (111).
[0054] Meanwhile, in this embodiment, a virtual line can be formed penetrating the interior of the suction part (112) configured in a cylindrical shape. At this time, the virtual line may represent the longitudinal axis of the suction path.
[0055] A vacuum cleaner (100) according to an embodiment of the present invention may have at least one cyclone section capable of separating dust by cyclone flow. For example, the vacuum cleaner (100) may include a first cyclone section (113) and a second cyclone section (200).
[0056] The first cyclone section (113) can be connected to the suction section (112). The first cyclone section (113) can separate dust sucked into the interior through the suction section (112). The space inside the first cyclone section (113) can be connected to the space inside the dust bin (120).
[0057] The first cyclone section (113) is connected to the suction section (112) and is configured to apply the principle of a dust collector utilizing centrifugal force to separate dust sucked into the interior of the main body (110) through the suction section (112). That is, the first cyclone section (113) refers to a space where a cyclone flow occurs along the inner surface of the dust container (120), and the first cyclone section (113) may refer to a part of the space inside the dust container (120).
[0058] The cyclone flow generated in the first cyclone section (113) may be due to the suction force of the suction motor (114).
[0059] The cyclone flow generated in the first cyclone section (113) can be formed between the inner circumference of the dust bin (120) and the outer circumference of the filter body (171) to be described later. That is, the cyclone flow can be formed inside the first cyclone section (113).
[0060] The space inside the first cyclone section (113) can be connected to the suction section (112). Air and dust sucked in through the suction section (112) flow along the inner surface of the first cyclone section (113), thereby allowing cyclone flow to occur in the space inside the first cyclone section (113).
[0061] For example, the cyclone flow generated in the first cyclone section (113) can be formed to surround the outer circumference of the filter body (171) in a circular shape. That is, the air sucked in through the suction section (112) flows in a circular shape along the outer surface of the filter body (171) with respect to the central axis of the filter body (171), thereby allowing cyclone flow to be generated in the internal space of the first cyclone section (113).
[0062] Specifically, when the axis of the cyclone flow generated in the first cyclone section (113) is positioned perpendicular to the downward side in the direction of gravity, the air sucked in through the suction section (112) can flow in a circular shape along the outer surface of the filter body (171) with respect to the central axis of the filter body (171). Alternatively, when the axis of the cyclone flow generated in the first cyclone section (113) is positioned parallel to the ground, the air sucked in through the suction section (112) can flow in a circular shape along the outer surface of the filter body (171) with respect to the central axis of the filter body (171).
[0063] As another example, the cyclone flow generated in the first cyclone section (113) can be formed in a spiral shape along the outer circumference of the filter body (171). That is, the air sucked in through the suction section (112) flows spirally along the outer circumference of the filter body (171), thereby generating a cyclone flow in the internal space of the first cyclone section (113). Thus, a cyclone flow can be generated in the internal space of the first cyclone section (113).
[0064] Specifically, when the axis of the cyclone flow generated in the first cyclone section (113) is positioned to be inclined with respect to the ground, the air sucked in through the suction section (112) can flow in a spiral shape along the outer circumference of the filter body (171).
[0065] A vacuum cleaner (100) according to an embodiment of the present invention may include a second cyclone unit (200) that separates dust again from the air discharged from the first cyclone unit (113). That is, the second cyclone unit (200) can filter out small dust that was not filtered out by the first cyclone unit (113) and the filter unit (170) from the air that has passed through the first cyclone unit (113) and the filter unit (170).
[0066] At this time, the second cyclone section (200) may be located inside the first cyclone section (113) so that the size of the vacuum cleaner (100) is minimized. The second cyclone section (200) may be positioned below the suction motor (114). Specifically, the second cyclone section (200) may be positioned inside the filter section (170). That is, the first cyclone section (113) and the second cyclone section (200) may be positioned inside the dust bin (120) with the filter section (170) in between.
[0067] The second cyclone section (200) may include a plurality of cyclone bodies (210) arranged in parallel. Accordingly, air discharged from the first cyclone section (113) may pass through the filter section (170) and be divided and passed through the plurality of cyclone bodies (210). That is, the cyclone flow generated in the second cyclone section (113) may be formed inside the cyclone body (210).
[0068] Meanwhile, the second cyclone section (200) may also include a single cyclone body (210), and in this case, the axis of the cyclone flow generated in the second cyclone section (200) may be extended in the vertical direction.
[0069] Additionally, the axis of the cyclone flow generated in the first cyclone section (200) can also be extended in the vertical direction. Accordingly, the axis of the cyclone flow generated in the first cyclone section (113) and the axis of the cyclone flow generated in the second cyclone section (200) can form a coaxial axis or parallel in the vertical direction.
[0070] A storage member (172) in which dust separated from the second cyclone section (200) is stored may be disposed inside the dust bin (120). The storage member (172) may be connected to the lower side of the filter body (171) and may come into contact with the upper surface of the discharge cover (122). Additionally, the lower side of the storage member (172) may be open.
[0071] The storage member (172) can divide the space inside the dust bin (120) into a first dust storage section where dust separated from the first cyclone section (113) is stored, and a second dust storage section where dust separated from the second cyclone section (200) is stored.
[0072] Accordingly, the space between the storage member (172) and the dust bin (120) can be defined as the first dust storage section, and the lower internal space of the storage member (172) can be defined as the second dust storage section.
[0073] The discharge cover (122) can open and close the first dust storage unit and the second dust storage unit together. That is, the first dust storage unit and the second dust storage unit can be exposed to the outside together.
[0074] The suction motor (114) can generate a suction force to draw in air. The suction motor (114) can be housed within the main body housing (111). The suction motor (114) can generate a suction force by rotation. For example, the suction motor (114) can be provided in a shape similar to a cylinder.
[0075] At this time, cyclone flow can be generated by the suction force of the suction motor (114).
[0076] Specifically, when the suction motor (114) is operated, the air sucked in through the suction section (112) by the suction force of the suction motor (114) can generate cyclone flow in the first cyclone section (113) and / or the second cyclone section (200).
[0077] Meanwhile, in this embodiment, a virtual rotation axis of the suction motor can be formed by extending the rotation axis of the suction motor (114).
[0078] The suction motor (114) may be located inside the main body housing (111). Also, at least a portion of the suction motor (114) may be located above the second cyclone section (200). Thus, the suction motor (114) may be located above the dust bin (120).
[0079] The suction motor (114) can be connected to the outlet (221b) of the second cyclone section (200).
[0080] The axis of the cyclone flow of the first cyclone section (113) can pass through the suction motor (114).
[0081] In an embodiment of the present invention, when the suction motor (114) is positioned above the second cyclone section (200), the air discharged from the second cyclone section (200) can flow directly toward the suction motor (114), thereby minimizing the flow path between the second cyclone section (200) and the suction motor (114).
[0082] An air exhaust cover (115) may be positioned on one side in the axial direction of the main body housing (111). The air exhaust cover (115) may accommodate a filter for filtering air. For example, the air exhaust cover (115) may accommodate a HEPA filter.
[0083] An air outlet may be formed in the air discharge cover (115) to discharge air sucked in by the suction force of the suction motor (114).
[0084] A flow guide may be placed in the air discharge cover (115). The flow guide may guide the flow of air discharged through the air discharge port.
[0085] The handle (116) can be grasped by a user. The handle (116) can be positioned behind the suction motor (114). For example, the handle (116) can be formed in a shape similar to a cylinder. Alternatively, the handle (116) can be formed in a curved cylinder shape. The handle (116) can be positioned at a predetermined angle with respect to the main body housing (111), the suction motor (114), or the first cyclone section (113).
[0086] The handle (116) may include a gripping portion formed in a column shape for the user to grip, a first extension portion connected to one end in the longitudinal direction (axial direction) of the gripping portion and extended toward the suction motor (114), and a second extension portion connected to the other end in the longitudinal direction (axial direction) of the gripping portion and extended toward the dust bin (120).
[0087] Meanwhile, in this embodiment, a virtual gripping part penetration line can be formed that extends along the length direction (axis direction of the column) of the gripping part and penetrates the gripping part.
[0088] For example, the gripping part penetration line may be a virtual line formed inside a cylindrical handle (116) and may be a virtual line formed parallel to at least a part of the outer surface (outer circumference) of the gripping part.
[0089] The upper surface of the handle (116) can form part of the upper surface of the vacuum cleaner (100). This prevents a component of the vacuum cleaner (100) from coming into contact with the user's arm when the user grips the handle (116).
[0090] The first extension may extend from the gripping portion toward the main body housing (111) or the suction motor (114). At least a portion of the first extension may extend in a horizontal direction.
[0091] The second extension may extend from the gripping portion toward the dustbin (120). At least a portion of the second extension may extend in a horizontal direction.
[0092] The control unit (117) may be positioned on the handle (116). The control unit (117) may be positioned on an inclined surface formed in the upper area of the handle (116). The control unit (117) may be composed of a plurality of buttons, and when a user presses a corresponding button, a command corresponding to that button can be executed. The user can input a command to operate or stop the vacuum cleaner (100) through the control unit (117).
[0093] The vacuum cleaner (100) may include a dust bin (120). The dust bin (120) may be connected to the suction part (112). A first cyclone part (213) may be located inside the dust bin (120). The dust bin (120) may store dust separated from the first cyclone part (213).
[0094] The dustbin (120) may include a dustbin body (121), a discharge cover (122), a dustbin compression lever (123), and a compressor (not shown).
[0095] The dustbin body (121) can provide a space for storing dust separated from the first cyclone section (113). For example, the dustbin body (121) can be formed in a shape similar to a cylinder.
[0096] Meanwhile, in this embodiment, a virtual dust bin penetration line can be formed that penetrates the interior (internal space) of the dust bin body (121) and extends along the length direction of the dust bin body (121) (meaning the axial direction in the cylindrical dust bin body (121)).
[0097] The lower surface (bottom surface) of the dustbin body (121) may be partially open. Additionally, a lower surface extension (121a) may be formed on the lower surface (bottom surface) of the dustbin body (121). The lower surface extension (121a) may be formed to block a portion of the lower surface of the dustbin body (121).
[0098] The dustbin (120) may include a discharge cover (122). The discharge cover (122) may be placed on the lower side of the dustbin (120).
[0099] The discharge cover (122) may be provided to open and close one end in the longitudinal direction of the dust bin body (121). Specifically, the discharge cover (122) may selectively open and close the lower part of the dust bin (120) that opens downward.
[0100] The discharge cover (122) may include a cover body (122a) and a hinge portion (122b). The cover body (122a) may be formed to block a portion of the lower surface of the dustbin body (121). The cover body (122a) may rotate downward with respect to the hinge portion (122b). The hinge portion (122b) may be positioned adjacent to the battery housing (130). A torsion spring (122d) may be provided in the hinge portion (122b). Accordingly, when the discharge cover (122) is separated from the dustbin body (121), the cover body (122a) may be supported in a state rotated by more than a predetermined angle with the hinge portion (122b) as an axis, due to the elastic force of the torsion spring (122d).
[0101] The discharge cover (122) can be connected to the dust bin (120) via a hook connection. Meanwhile, the discharge cover (122) can be separated from the dust bin (120) via a connection lever (122c). The connection lever (122c) can be positioned at the front of the dust bin (120). Specifically, the connection lever (122c) can be positioned on the outer front side of the dust bin (120). When an external force is applied, the connection lever (122c) can elastically deform a hook extending from the cover body (122a) to release the hook connection between the cover body (122a) and the dust bin body (121).
[0102] When the discharge cover (122) is closed, the lower side of the dust bin (120) can be blocked (sealed) by the discharge cover (122) and the lower extension (121a).
[0103] The dustbin (120) may include a dustbin compression lever (123) (see FIG. 2). The dustbin compression lever (123) may be positioned on the outside of the dustbin (120). The dustbin compression lever (123) may be positioned to move up and down on the outside of the dustbin (120). The dustbin compression lever (123) may be connected to a compressor (not shown). When the dustbin compression lever (123) moves downward due to an external force, the compressor (not shown) may also move downward together. This provides convenience for the user. The compressor (not shown) and the dustbin compression lever (123) may return to their original positions by means of an elastic member (not shown). Specifically, when the external force applied to the dustbin compression lever (123) is removed, the elastic member may move the dustbin compression lever (123) and the compressor (not shown) upward.
[0104] A compressor (not shown) can be placed inside the dustbin body (121). The compressor can move within the internal space of the dustbin body (121). Specifically, the compressor can move up and down within the dustbin body (121). Through this, the compressor can compress the dust inside the dustbin body (121) downward. Additionally, when the discharge cover (122) is separated from the dustbin body (121) and the bottom of the dustbin (120) is opened, the compressor can move from the top to the bottom of the dustbin (120) to remove foreign substances, such as residual dust, inside the dustbin (120). Through this, the suction power of the vacuum cleaner can be improved by ensuring that no residual dust remains inside the dustbin (120). Furthermore, by ensuring that no residual dust remains inside the dustbin (120), the unpleasant odor caused by the residue can be removed.
[0105] The vacuum cleaner (100) may include a battery housing (130). A battery (140) may be accommodated in the battery housing (130). The battery housing (130) may be positioned below the handle (116). For example, the battery housing (130) may have a cuboid shape with an open bottom. The rear of the battery housing (130) may be connected to the handle (116).
[0106] The battery housing (130) may include a receiving portion that opens downward. The battery (140) can be detached through the receiving portion of the battery housing (130).
[0107] The battery housing (130) may be provided with externally exposed battery terminals.
[0108] When the battery terminal of the battery housing (130) and an external charging terminal (not shown) are combined, power can be supplied to the battery (140) through the battery terminal. The battery terminal may be spaced apart to the left and right on the lower surface of the battery housing (130).
[0109] The vacuum cleaner (100) may include a battery (140).
[0110] For example, the battery (140) can be detachably coupled to the vacuum cleaner (100). The battery (140) can be detachably coupled to the battery housing (130). For example, the battery (140) can be inserted into the interior of the battery housing (130) from below the battery housing (130). With such a configuration, the portability of the vacuum cleaner (100) can be improved.
[0111] Alternatively, the battery (140) may be integrally provided inside the battery housing (130). In this case, the lower surface of the battery (140) is not exposed to the outside.
[0112] The battery (140) stores electrical energy and can supply power to each component, including the suction motor (114) of the vacuum cleaner (100). The battery (140) can be placed at the bottom of the handle (116). The battery (140) can be placed at the rear of the dustbin (120). That is, the suction motor (114) and the battery (140) are positioned so as not to overlap in the vertical direction, and their heights can also be different. With respect to the handle (116), the heavier suction motor (114) is placed at the front of the handle (116), and the lighter battery (140) is placed at the bottom of the handle (116), so the weight can be evenly distributed throughout the vacuum cleaner (100). This prevents strain on the user's wrist when the user holds the handle (116) and cleans.
[0113] According to the embodiment, when the battery (140) is coupled to the battery housing (130), the lower surface of the battery (140) may be exposed to the outside. Since the battery (140) may be placed on the floor when the vacuum cleaner (100) is placed on the floor, the battery (140) can be immediately detached from the battery housing (130). Additionally, since the lower surface of the battery (140) is exposed to the outside and comes into direct contact with the outside air of the battery (140), the cooling performance of the battery (140) may be improved.
[0114] Meanwhile, if the battery (140) is fixed integrally to the battery housing (130), the structure for attaching and detaching the battery (140) and the battery housing (130) can be reduced, so the overall size of the vacuum cleaner (100) can be reduced and the weight can be reduced.
[0115] The vacuum cleaner (100) may include an extension tube (150). The extension tube (150) may be in communication with a cleaning module (160). The extension tube (150) may be in communication with a main body (110). The extension tube (150) may be in communication with a suction part (112) of the main body (110). The extension tube (150) may be formed in a long cylindrical shape.
[0116] The main body (110) can be connected to an extension tube (150). The main body (110) can be connected to a cleaning module (160) through the extension tube (150). The main body (110) can generate suction power through a suction motor (114) and provide suction power to the cleaning module (160) through the extension tube (150). External dust can be introduced into the main body (110) through the cleaning module (160) and the extension tube (150).
[0117] The vacuum cleaner (100) may include a cleaning module (160). The cleaning module (160) may be connected to an extension tube (150). Thus, external air may be drawn into the main body (110) of the vacuum cleaner (100) by passing through the cleaning module (160) and the extension tube (150) by the suction force generated in the main body (110) of the vacuum cleaner (100).
[0118] A vacuum cleaner according to an embodiment of the present invention may include a filter unit (170).
[0119] The filter section (170) can filter the air discharged from the first cyclone section (113).
[0120] The filter section (170) can guide air separated from dust in the first cyclone section (113) to the second cyclone section (200). That is, the filter section (170) may be a mesh filter having multiple holes.
[0121] The filter section (170) may include a filter body (171) and a filter hole (171a).
[0122] The filter body (171) may be placed inside the dust bin (120). Specifically, the filter body (171) may be placed inside the first cyclone section (213). The second cyclone section (200) may be placed inside the filter body (171). That is, the filter body (171) may be placed between the cyclone section (213) and the second cyclone section (200).
[0123] The filter body (171) may be formed in a cylindrical shape, though not limited to cylindrical shapes.
[0124] The central axis of the filter body (171) may be extended in the vertical direction. The central axis of the filter body (171) may be extended along the length direction of the filter body (171).
[0125] For example, the central axis of the filter body (171) may be coaxial with the axis of the cyclone flow generated in the first cyclone section (113). For another example, the central axis of the filter body (171) may be formed parallel to the axis of the cyclone flow generated in the first cyclone section (113).
[0126] The filter hole (171a) can guide air into the interior of the filter body (171). Multiple filter holes (171a) may be formed along the outer circumference of the filter body (171) in the longitudinal direction. The filter hole (171a) is a hole having a predetermined diameter, and large foreign substances contained in the air discharged from the first cyclone section (113) can be filtered by the filter hole (171a).
[0127] Air passing through the filter hole (171a) can be introduced into the second cyclone section (200) located inside the filter body (171).
[0128] At this time, the outer side and / or outer side of the filter body (171) may mean the direction facing the cyclone section (213) with respect to the filter body (171), and the inner side and / or inner side of the filter body (171) may mean the direction facing the second cyclone section (200) with respect to the filter body (171).
[0129] FIG. 5 discloses a perspective view of a second cyclone section according to an embodiment of the present invention, FIG. 6 discloses an exploded view of FIG. 5, FIG. 7 discloses a front view of FIG. 6, FIG. 8 discloses a perspective view for explaining the combined appearance of the second cyclone section and the filter section according to an embodiment of the present invention, FIG. 9 discloses a bottom perspective view of a dust separation unit according to an embodiment of the present invention, FIG. 10 discloses a front view of a dust separation unit according to an embodiment of the present invention, and FIG. 11 discloses a drawing for explaining the flow of air entering the inside of a cyclone body according to an embodiment of the present invention.
[0130] Hereinafter, with reference to FIGS. 5 to 11, a second cyclone section (200) according to an embodiment of the present invention will be described in detail.
[0131] After dust is separated from the air by the first cyclone section (113), the air discharged from the first cyclone section (113) can flow into the second cyclone section (200) along the path.
[0132] The second cyclone section (200) may have at least a portion of it placed inside the first cyclone section (113) and may separate dust from the air discharged from the first cyclone section (113).
[0133] The second cyclone section (200) may be composed of a set of axial-flow cyclones formed to separate dust from air flowing in the axial direction. The set of axial-flow cyclones may include a cyclone body (210) and a dust separation unit (220).
[0134] The second cyclone section (200) may include a cyclone body (210), a dust separation unit (220), and a guide vane member (230).
[0135] The cyclone body (210) is configured to apply the principle of a dust collector utilizing centrifugal force to separate dust from the air discharged from the first cyclone section (113). A space for air to flow may be formed inside the cyclone body (210), and the air discharged from the first cyclone section (113) may be introduced into the inside of the cyclone body (210).
[0136] The cyclone body (210) may be placed inside the filter section (170). Specifically, at least a portion of the cyclone body (210) may be placed inside the filter body (171), and air passing through the filter hole (171a) may flow into the inside of the cyclone body (210).
[0137] A plurality of cyclone bodies (210) may be provided. Each cyclone body (210) may have an inlet (210a) formed to form an outer wall around the hollow portion. The outer walls around the hollow portion formed by the cyclone body (210) may correspond to the outer walls of each axial flow cyclone. Air flowing along the inner surface of the cyclone body (210) may form a cyclone flow.
[0138] Dust heavier than air can rotate within the swirling flow with a radius of rotation larger than that of air. Since the dust rotates inside the cyclone body (210), the maximum radius of rotation of the dust can be defined by the cyclone body (210).
[0139] The lower part of the cyclone body (210) may have a slanted shape that narrows toward the bottom. The reason the lower part of the cyclone body (210) has a shape that narrows toward the bottom is to induce the fall of dust separated from the air and to prevent the dust from being discharged along with the air to the vortex finder (221).
[0140] The lower part of the cyclone body (210) can be supported by a plate member (240). A plurality of through holes may be formed in the plate member (240) at a position facing the cyclone body (210), and the lower part of the cyclone body (210) can be inserted into each of the through holes. Since the lower part of the cyclone body (210) has a slanted shape that narrows as it goes downward, the cyclone body (210) can be supported by the plate member (240) at a position where the size of the outer surface of the cyclone body (210) and the size of the through holes are the same.
[0141] A fixing groove (240a) may be provided in the plate member (240). The fixing groove (240a) may be arranged along the outer surface of the plate member (240), and the fixing groove (240a) may be coupled to a fixing projection (not shown) arranged on the inner surface of the filter body (171) to set the coupling position and prevent arbitrary relative rotation. Since arbitrary relative rotation may occur between the dust separation unit (220) and the filter body (171), arbitrary relative rotation must be prevented for the normal operation of the second cyclone unit (200).
[0142] The fixing projection of the filter body (171) is formed to be insertable into the fixing groove (251) and may be formed in either the plate member (240) or the filter body (171). The fixing groove (240a) is formed to receive the fixing projection of the filter body (171) and may be formed in the other of the plate member (240) and the filter body (171). Additionally, the fixing groove (240a) and the fixing projection of the filter body (171) may be provided in multiple numbers.
[0143] An outlet (210b) may be formed at the lower part of the cyclone body (210). That is, dust separated from the air inside the cyclone body (210) may be discharged from the cyclone body (210) through the outlet (210b). Additionally, the lower part of the cyclone body (210) may be in communication with the internal space of the storage member (172). Thus, dust rotating along the swirling flow inside the cyclone body (210) may fall and be stored in the storage member (172). The dust stored in the storage member (172) may be in communication with the external space when the discharge cover (122) is opened.
[0144] The upper part of the cyclone body (210) may be formed to accommodate a vortex finder (221). The upper part of the cyclone body (210) may be formed to have a constant inner diameter. The upper and lower parts of the cyclone body (210) may be distinguished based on the position where the inner diameter narrows.
[0145] The outer surface of each cyclone body (210) is connected to contact surrounding cyclone bodies (210), so that multiple cyclone bodies (210) may form a single component. It is preferable that the cross-section of each cyclone body (210) be circular, as shown in the drawing. This is because if the cross-section of the cyclone body (210) is formed as a circle, a passage for air and dust can be formed between adjacent cyclone bodies (210) even if their outer surfaces are in close contact with each other. If a passage for air and dust is formed between the cyclone bodies (210), there is an advantage that a separate passage structure does not need to be installed.
[0146] It is not excluded that the cross-section of each cyclone body (210) be formed as a polygon. However, even if the cross-section of each cyclone body (210) is formed as a polygon, it is preferable that it be formed as a polygon in which a flow path for air and dust can be formed.
[0147] A dust separation unit (220) may be positioned above a cyclone body (210) to form a set of axial cyclones together with the cyclone body (210). The cyclone body (210) may form a part of the set, and the dust separation unit (220) may form the remaining part of the set. That is, a set of axial cyclones may be formed by a plurality of cyclone bodies (210) and a single member.
[0148] The dust separation unit (220) may include a vortex finder (221), a band member (222), an outer band member (223), and a protruding member (224). Since the dust separation unit may be a single integral member, the vortex finder (221), the band member (222), the outer band member (223), and the protruding member (224) may represent each part of the dust separation unit (220).
[0149] The vortex finder (221) is configured to discharge air that has passed through the cyclone flow from the inside of the cyclone body (210). A flow path through which air can flow may be formed inside the vortex finder (221). Multiple vortex finders (221) may be provided, and each vortex finder (221) may be positioned inside each cyclone body (210). The outer surface of each vortex finder (221) may be spaced apart from the inner surface of each cyclone body (210). Each vortex finder (221) has an inlet (221a) that forms an outer wall around the hollow portion, and air that has passed through the cyclone body (210) may be discharged through the inlet (221a) of each vortex finder (221).
[0150] The lower part of the vortex finder (221) may have a higher height than the band member (222). However, the upper part of the vortex finder (221) may have the same height as the band member (222). In the drawing, it can be seen that the lower part of the vortex finder (221) protrudes below the dust separation unit (220), but the upper part does not.
[0151] It is preferable that the cross-section of each vortex finder (221) has a circular ring shape. It is not excluded that the cross-section of each vortex finder (221) be formed as a polygon. However, even if the cross-section of each vortex finder (221) is formed as a polygon, it is preferable that it be formed as a polygon in which a flow path for air and dust can be formed.
[0152] Referring to FIGS. 8 and 9, the inner surface (221c) of the vortex finder (221) located at a height corresponding to the second guide vane (232) may protrude outward (radially outward from the vortex finder (221)). Specifically, the inner surface (221c) of the vortex finder (221) located at the same height as the second guide vane (232) may be formed to protrude in a shape corresponding to the second guide vane (232).
[0153] Due to this structure, the area of the outlet (221b) of the vortex finder (221) may be larger than the area of the inlet (221a) of the vortex finder (221). That is, as the cross-sectional area of the flow path increases from the inlet (221a) of the vortex finder (221) toward the outlet (221b), the flow loss that may occur as air flowing into the inlet (221a) of the vortex finder (221) flows toward the outlet (221b) can be reduced. At this time, the inlet (221a) of the vortex finder (221) refers to the inlet through which air passing through the cyclone body (210) flows in, and the outlet (221b) of the vortex finder (221) refers to the outlet through which air passing through the vortex finder (221) is discharged.
[0154] The band member (222) may be formed to wrap around the outer surface of the vortex finder (221). At this time, the band member (222) may be named by other names as needed. For example, names such as ring portion, ring portion, rim portion, circumference portion, circle portion, support portion, connection portion, outer portion, cyclone boundary portion, outer wall portion, etc., may be considered, and other names are also possible. The band member (222) may be seated on the filter body (171) and may have a shape corresponding to the upper part of the filter body (171). The upper part of the filter body (171) may be formed in a circular shape, and the band member (222) may also be formed in a circular shape that wraps around the vortex finder (221). However, it is not excluded that the upper part of the filter body (171) and the band member (222) may be formed in a polygonal shape.
[0155] The position fixing step (223a) of the dust separation unit (220) can be formed so that the coupling position is set by fitting into the step (not shown) of the filter body (171) and arbitrary relative rotation is prevented. Since arbitrary relative rotation may occur between the dust separation unit (220) and the filter body (171), arbitrary relative rotation must be prevented for the normal operation of the second cyclone unit (200).
[0156] Meanwhile, a fixing member (225) extending downward may be provided at the center of the band member (222). The fixing member (225) may be fitted into a fixing space (211) formed by the outer surface of a plurality of cyclone bodies (210). At this time, the plurality of cyclone bodies (210) may be arranged radially around the fixing member (225). The fixing member (225) fitted into the fixing space (211) is coupled to a position fixing groove (not shown) formed on the upper surface of the plate member (240) to set the coupling position, thereby preventing arbitrary relative rotation between the dust separation unit (220) and the cyclone body (210).
[0157] The outer band member (223) is formed to wrap around the band member (222) to form the rim of the dust separation unit (220). The outer band member (223) can wrap around the band member (222) from the outer edge of the band member (222). Meanwhile, the outer band member (223) can form a fixed step (222a) with the band member (222). That is, since a part of the side of the band member (222) and the lower surface of the outer band member (223) form a fixed step (222a), the filter body (171) can be fitted into the fixed step (222a).
[0158] The protruding member (224) is formed on the upper surface where the outlet (221b) of the vortex finder (221) is positioned, and can guide the air discharged through the outlet (221b) in a certain direction. At this time, the upper and lower parts of the protruding member (224) may have the same height as the outer band member (223). Since the protruding member (224) has the same height as the outer band member (223), the possibility of interference with other parts and the possibility of damage can be reduced.
[0159] Since the vortex finder (221) and the band member (222) are connected to each other, the band member (222) is connected to the second outer band member (223), and the protruding member (224) is connected to the band member (222) and the outer band member (223), the dust separation unit (220) can be made of a single integrated member.
[0160] The guide vane member (230) is configured to guide air discharged from the first cyclone section (113) into the interior of the cyclone body (210). The guide vane member (230) can form a guide channel (234) through which air can flow into the interior of the cyclone body (210). Accordingly, the air flowing along the guide channel (234) can form a swirling flow between the vortex finder (221) and the cyclone body (210).
[0161] At least a portion of the guide vane member (230) may be positioned between the cyclone body (210) and the vortex finder (221) and connected to each cyclone body (210) and each vortex finder (221). One side of the guide vane member (230) may be connected to the outer surface of the vortex finder (221) along the spiral direction, and the other side of the guide vane member (230) may be connected to the inner surface of the cyclone body (210) along the spiral direction.
[0162] For each cyclone body (210) and each vortex finder (221), a plurality of guide vane members (230) may be provided, and the guide vane members (230) may be extended along a spiral direction to create a swirling flow. As the guide vane members (230) are extended in a spiral direction, the guide channel (234) is also extended along the spiral direction, and air and dust introduced into the inlet (210a) of the cyclone body (210) can form a swirling flow.
[0163] The guide vane member (230) may include a first guide vane (231), a second guide vane (232), and a third guide vane (233). At this time, the guide path (234) defined by the first guide vane (231), the second guide vane (232), the third guide vane (233), and the vortex finder (221) may extend along a spiral direction and may guide air discharged from the first cyclone section (113) into the inside of the cyclone body (210).
[0164] The first guide vane (231) may be disposed in the cyclone body (210). The first guide vane (231) may be formed integrally with the cyclone body (210). With the vortex finder (221) inserted into the inner side of the cyclone body (210), the first guide vane (231) may be disposed between the vortex finder (221) and the cyclone body (210). One side of the first guide vane (231) may be connected to the outer surface of the vortex finder (221) along the spiral direction, and the other side of the first guide vane (231) may be connected to the inner surface of the cyclone body (210) along the spiral direction.
[0165] The second guide vane (232) may be placed in the vortex finder (221). The second guide vane (232) may be formed integrally with the vortex finder (221). With the vortex finder (221) inserted into the inner side of the cyclone body (210), a lower portion of the second guide vane (232) may be placed between the vortex finder (221) and the cyclone body.
[0166] As the vortex finder (221) is inserted into the inner side of the cyclone body (210), the second guide vane (232) can be continuously extended by coming into contact with the first guide vane (231). In particular, each second guide vane (232) can be formed to make surface contact with each first guide vane (231).
[0167] At this time, the vortex finder (221) is inserted into the inner side of the cyclone body (210), and the first guide vane (231) and the second guide vane (232) are in surface contact. This state can be defined as the combined state of the cyclone body (210) and the vortex finder (221). The direction of combination of the cyclone body (210) and the vortex finder (221) may be formed along the axial direction of the cyclone body (210) and / or the vortex finder (221).
[0168] Referring to FIGS. 10 and 11, a step may be formed in the second guide vane (232) having a shape corresponding to the first guide vane (231). The step of the second guide vane (232) may be formed to be recessed so as to correspond to the edge of the first guide vane (231). Thus, the first guide vane (231) may be coupled to the second guide vane (232) in an interlocking manner.
[0169] Specifically, the step of the second guide vane (232) may be provided with a first surface (232a) and a second surface (232b). The first surface (232a) may correspond to the upper surface of the first guide vane (231). The second surface (232b) may correspond to the side surface of the first guide vane (231) and may be bent downward from the first surface (232a). The second surface (232b) may be formed parallel to the coupling direction of the cyclone body (210) and the vortex finder (221).
[0170] Due to this structure, the first guide vane (231) and the second guide vane (232) can be combined more stably, which has the advantage of reducing the loss of air flow entering the inside of the cyclone body (210).
[0171] Meanwhile, referring to FIGS. 10 and 11, at least a portion of the outer surface of the vortex finder (221) may be recessed inward to correspond to the first guide vane (231). That is, a recessed surface (221d) corresponding to the shape of the first guide vane (231) may be formed on the outer surface of the vortex finder (221). Accordingly, when the cyclone body (210) and the vortex finder (221) are combined, the cyclone body (210) catches on the recessed surface (221d), thereby allowing the first guide vane (231) and the second guide vane (232) to be combined more stably.
[0172] The third guide vane (233) may be positioned in the vortex finder (221) so as to be spaced apart adjacent to the second guide vane (232). The third guide vane (233) may be positioned so as to be spaced apart from the second guide vane (232) in a direction perpendicular to the axial direction of the vortex finder (221). With this configuration, the guide vanes may overlap each other along the coupling direction of the cyclone body (210) and the vortex finder (221). Specifically, the first guide vane (231) and the third guide vane (233) may overlap each other. The overlap between the first guide vane (231) and the third guide vane (233) can be seen in FIG. 11.
[0173] Since the dust separation unit (220) and cyclone body (210) manufactured by injection in the upper mold and lower mold must be separated from the upper mold and lower mold after injection, the guide vanes cannot overlap each other along the coupling direction of the cyclone body (210) and the vortex finder (221).
[0174] However, when the dust separation unit (220) and the cyclone body (210) are combined, the first guide vane (231) and the third guide vane (233) may overlap each other. This is similar to forming a structure in which one guide vane overlaps with another guide vane along the axial direction of the vortex finder (221), the axial direction of the cyclone body (210), or the direction of combination between the dust separation unit (220) and the cyclone body (210).
[0175] When the first guide vane (231) and the third guide vane (233) overlap each other along the coupling direction of the cyclone body (210) and the vortex finder (221), a high-speed swirling flow can be formed, thereby enabling high separation performance of the second cyclone section (200).
[0176] Below, the flow of air flowing through the path of the vacuum cleaner (100) is described.
[0177] First, when the suction motor (114) is operated, external air can be drawn into the interior of the first cyclone section (113) through the suction section (112).
[0178] Air from which dust has been separated by the first cyclone section (113) can pass through the filter hole (171a) formed in the filter body (171) and flow into the passage between the cyclone body (210) and the filter body (171). At this time, the passage between the cyclone body (210) and the filter body (171) can be formed between the outer surface of the cyclone body (210) and the inner surface of the filter body (171).
[0179] Air passing through the filter hole (171a) can pass through the flow path between the cyclone body (210) and the filter body (171) and then be introduced into the inside of the cyclone body (210) through the inlet (210a) of the cyclone body (210).
[0180] Air introduced into the interior of the cyclone body (210) forms a swirling flow and then flows upward to pass through the vortex finder (221). The air passing through the vortex finder (221) flows toward the intake motor (114) and can be discharged to the outside through the HEPA filter and the air outlet.
[0181] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention and is not limited thereto. It is evident that modifications or improvements to the present invention are possible by those skilled in the art within the technical scope of the invention.
[0182] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims. Explanation of the symbols
[0184] 100: Vacuum cleaner 110: Main unit 111: Main body housing 112: Suction part 113: 1st Cyclone Section 114: Intake Motor 115: Air vent cover 116: Handle 120: Dustbin 122: Discharge cover 122c: Connecting lever 123: Dustbin compression lever 130: Battery housing 140: Battery 150: Extension tube 160: Cleaning module 170: Filter section 171: Filter body 172: Storage Part 200: Second Cyclone Section 210: Cyclone body 220: Dust separation unit 221: Vortex Finder 222: Band Absence 223: Outer band member 224: Protruding member 225: Fixed member 230: Guide vane member 231: Guide 1 Vayne 232: Guide 2 Vayne 233: The Third Guide Bane
Claims
Claim 1 A suction part that guides air into the interior of a dust bin; a first cyclone part that separates dust from the air sucked in through the suction part; and a second cyclone part that separates dust from the air discharged from the first cyclone part; wherein the second cyclone part comprises: a cyclone body into which air discharged from the first cyclone part is introduced; a vortex finder in which at least a portion is disposed inside the cyclone body; and a guide vane member in which at least a portion is disposed between the cyclone body and the vortex finder and guides the air discharged from the first cyclone part into the interior of the cyclone body; wherein the guide vane member comprises a first guide vane disposed in the cyclone body; A vacuum cleaner comprising: a first guide vane and a second guide vane disposed in the vortex finder; wherein the first guide vane and the second guide vane are in contact and extend continuously, and at least a portion of the outer surface of the vortex finder is recessed inward to correspond to the first guide vane. Claim 2 A vacuum cleaner according to claim 1, wherein the guide vane member further comprises a third guide vane disposed in the vortex finder so as to be spaced apart adjacently from the second guide vane, and wherein the first guide vane and the third guide vane overlap each other along the coupling direction of the cyclone body and the vortex finder. Claim 3 A vacuum cleaner according to claim 1, wherein air discharged from the first cyclone section flows into the interior of the cyclone body through a guide channel formed by the vortex finder and the guide vane member, and the guide channel extends along a spiral direction. Claim 4 A vacuum cleaner according to claim 1, characterized in that, at a height corresponding to the second guide vane, the inner surface of the vortex finder is formed to protrude radially outward from the vortex finder. Claim 5 A vacuum cleaner according to claim 4, characterized in that the area of the outlet of the vortex finder is larger than the area of the inlet of the vortex finder. Claim 6 A vacuum cleaner according to claim 1, characterized in that one side of the guide vane member is connected to the outer surface of the vortex finder along the spiral direction, and the other side of the guide vane member is connected to the inner surface of the cyclone body along the spiral direction. Claim 7 A vacuum cleaner according to claim 1, characterized in that the first guide vane and the second guide vane are formed to be in surface contact. Claim 8 A vacuum cleaner according to claim 7, characterized in that the second guide vane has a step formed therein having a shape corresponding to the edge of one side of the outer surface of the first guide vane. Claim 9 A vacuum cleaner according to claim 8, wherein the step of the second guide vane comprises: a first surface corresponding to the upper surface of the first guide vane; and a second surface corresponding to the side of the first guide vane and bent downward from the first surface; and wherein the first guide vane is in surface contact with the first surface and the second surface. Claim 10 A vacuum cleaner according to claim 9, characterized in that the second surface is formed parallel to the coupling direction of the cyclone body and the vortex finder. Claim 11 delete