Cleaner

Abstract

The present invention relates to a cleaner, comprising: a main body housing in which a suction motor that generates a suction airflow is accommodated; a battery including a battery cell that supplies power to the suction motor; and a handle disposed between the suction motor and the battery and configured to be gripped, wherein the handle has a cooling channel formed thereinside, through which at least a portion of air discharged from the suction motor flows, and the battery includes a ventilation opening in communication with the cooling channel, such that a portion of the air discharged from the suction motor can circulate air inside the battery.

Description

vacuum cleaner

[0001] The present invention relates to a vacuum cleaner.

[0002] In general, a vacuum cleaner is a home appliance that uses electricity to suck up air and fills a dust bin inside the product with small pieces of trash or dust. It is commonly called a vacuum cleaner.

[0003] These vacuum cleaners can be categorized into manual vacuum cleaners, which the user moves to clean, and automatic vacuum cleaners, which clean by moving around on their own. Manual vacuum cleaners can be categorized by type, including canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, and stick vacuum cleaners.

[0004] In the past, canister-type vacuum cleaners were widely used in household vacuum cleaners, but recently, handheld vacuum cleaners and stick vacuum cleaners that provide the dust bin and vacuum cleaner body as an integrated unit, which improves convenience, are being widely used.

[0005] Canister-type vacuum cleaners have a main body and suction inlet connected by a rubber hose or pipe, and in some cases, a brush can be inserted into the suction inlet for use.

[0006] Handheld vacuum cleaners maximize portability. They are lightweight, but their short length limits the cleaning area they can be used in while seated. Therefore, they are used for cleaning small areas, such as desks, sofas, or inside cars.

[0007] Stick vacuums can be used standing up, allowing for cleaning without bending down. This makes them ideal for moving around and cleaning large areas. While handheld vacuums are suitable for cleaning tight spaces, stick vacuums can clean wider areas and reach high, out-of-reach places. Recently, stick vacuums have been offered in modular configurations, allowing users to actively adapt the vacuum to suit a variety of applications.

[0008] Meanwhile, International Patent Publication No. 2023-089298 discloses a dust separator.

[0009] The dust separator according to the above prior art includes a first filter that separates dust from air drawn in through an air inlet, a second filter that separates dust again from air that has passed through the first filter, and a wiper blade that directly removes dust accumulated on the first filter while moving in an up-and-down direction and indirectly shakes off dust accumulated on the second filter.

[0010] The dust separator of the above prior art is structured so that when the suction motor operates, air passes from the outer surface of the first filter to the inner surface, and the air passing through the first filter passes from the inner surface of the second filter to the outer surface, so that dust accumulates on the outer surface of the first filter and the inner surface of the second filter.

[0011] Accordingly, the dust separator of the above-mentioned prior art can directly sweep away dust accumulated on the outer surface of the first filter as the wiper blade moves up and down, and at the same time, the protrusion connected to the wiper blade can hit the outer surface of the second filter to shake off dust accumulated on the inner surface of the second filter.

[0012] However, according to the above-mentioned prior art, while dust accumulated on the first filter can be directly removed by moving the wiper blade, there is a limitation in that it is inefficient in removing dust accumulated on the second filter. Therefore, if dust accumulated on the second filter is not removed, there is a problem in that the suction performance of the dust separator is reduced.

[0013] The present invention was created to improve the above-mentioned problems, and the object of the present invention is to provide a vacuum cleaner that can remove dust accumulated in at least one filter with a simple action of a user pushing or pulling an operating lever.

[0014] In addition, the present invention aims to provide a vacuum cleaner that can improve the filtration performance of a filter and the suction performance of a suction motor by directly sweeping the surface where dust accumulates among the outer and inner surfaces of each filter.

[0015] In addition, the present invention aims to provide a vacuum cleaner that can minimize the force required by a user to move the operating lever by minimizing the distance between the cleaning unit that removes dust accumulated in the first filter and the second filter and the operating lever that moves the cleaning unit.

[0016] In addition, the present invention aims to provide a vacuum cleaner that can be moved by a user with minimal force by positioning the overall center of gravity of the vacuum cleaner as close as possible to the handle that the user holds.

[0017] In addition, the present invention aims to provide a vacuum cleaner whose overall size can be minimized by having a first filter disposed on the outside of a second cyclone section and a second filter disposed on the inside of a second cyclone section.

[0018] In addition, the present invention aims to provide a vacuum cleaner that reduces heat generation of a battery and a printed circuit board by forming a cooling path inside a handle and including a ventilation hole that allows air to enter and exit the battery.

[0019] In order to solve the above-described problem, a vacuum cleaner according to the present invention comprises: a main body housing in which a suction motor for generating a suction airflow is accommodated; a battery including a battery cell for supplying power to the suction motor; and a handle disposed between the suction motor and the battery and provided so as to be gripped; wherein a cooling channel is formed inside the handle through which at least a portion of air discharged from the suction motor flows, and a ventilation hole may be formed in the battery that is connected to the cooling channel.

[0020] In addition, it may include a handle characterized in that one longitudinal end is connected to the main body housing and the other longitudinal end is connected to the inside of the battery.

[0021] A vacuum cleaner according to a first embodiment of the present invention comprises an upper housing having the ventilation holes formed therein; and a lower housing coupled with the upper housing to form a space for accommodating battery cells therein; wherein the lower housing may include a battery having a bypass air outlet formed on a lower surface thereof through which air introduced through the ventilation holes is discharged.

[0022] The above main body housing includes a main air outlet for discharging air discharged from the suction motor, and the battery may be formed with a bypass air outlet communicating with the cooling channel.

[0023] A vacuum cleaner according to a second embodiment of the present invention may further include a dustbin for storing dust; a handle connection part coupled to the outside of the dustbin and having an upper portion communicating with the main body housing; and a printed circuit board for controlling the battery; wherein the printed circuit board may be accommodated inside the handle connection part.

[0024] In a vacuum cleaner according to a third embodiment of the present invention, a handle flow path partition may be formed along the longitudinal direction inside the handle.

[0025] In addition, the battery according to the present invention includes an upper housing; and a lower housing coupled with the upper housing to form a space for accommodating a battery cell therein; and the upper housing may include a ventilation hole through which air discharged from a suction motor of the vacuum cleaner is introduced.

[0026] The lower housing of the battery according to the first embodiment of the present invention may include a bypass air outlet communicating with the outside.

[0027] In addition, the printed circuit board is further included, which is accommodated in a space formed by combining the upper housing and the lower housing, and controls the battery cell; and the printed circuit board may further include a heat dissipation hole through which air introduced through the ventilation hole passes.

[0028] Additionally, the width of the printed circuit board may be characterized as being narrower than the width of the cell holder.

[0029] The upper housing or the lower housing of the battery according to the second embodiment of the present invention includes a front air outlet for discharging air drawn in from the ventilation hole, and the air discharged from the front air outlet can flow to the suction motor.

[0030] A battery according to the present invention includes a cell holder that surrounds the battery cell, and the cell holder may include a first cell holder that surrounds one longitudinal end of the battery cell; and a second cell holder that is coupled to the first cell holder and surrounds the other longitudinal end of the battery cell.

[0031] In addition, the cell holder may further include a cell receiving portion that surrounds at least a portion of the battery cell; and a cell holder connecting portion that protrudes from the cell receiving portion and connects the first cell holder and the second cell holder.

[0032] In addition, the present invention includes a body including a main body housing having a suction motor that generates a suction airflow accommodated therein and a handle disposed below the suction motor and provided so as to be gripped; a battery including a printed circuit board having a ventilation hole formed on an upper surface through which air discharged from the suction motor is introduced, a bypass air outlet formed on a lower surface through which air communicates with the outside, and a heat dissipation hole formed through which air introduced through the ventilation hole passes; and a virtual handle penetration line formed to extend along the longitudinal direction of the handle and pass through the handle; wherein the handle penetration line can pass through the suction motor, the ventilation hole, the heat dissipation hole, and the bypass air outlet.

[0033] Additionally, the air discharged from the suction motor of the vacuum cleaner may be characterized in that it flows to the outside through the ventilation hole, the heat dissipation hole, the internal space of the battery, and the bypass air discharge hole.

[0034] As described above, the vacuum cleaner according to the present invention has the effect of allowing the user to remove dust accumulated in at least one filter with a simple action of pushing or pulling the operating lever.

[0035] In addition, the present invention has the effect of improving the filtration performance of the filter and the suction performance by the suction motor by directly sweeping the surface where dust accumulates among the outer and inner surfaces of each filter.

[0036] In addition, the present invention has the effect of minimizing the force required by a user to move the operating lever by minimizing the distance between the cleaning unit that removes dust accumulated in the first filter and the second filter and the operating lever that moves the cleaning unit.

[0037] In addition, the present invention has the effect of enabling the user to move the vacuum cleaner with minimal force by placing the overall center of gravity of the vacuum cleaner as close as possible to the handle held by the user.

[0038] In addition, the present invention has the effect of minimizing the overall size of the vacuum cleaner by placing the first filter on the outside of the second cyclone section and the second filter on the inside of the second cyclone section.

[0039] In addition, the present invention has the effect of lowering the temperature of the battery cell (260) by causing the air discharged from the suction motor to flow into the handle and the inside of the battery, and also preventing the heat emitted from the battery cell (260) from being continuously transferred to the printed circuit board (240) and causing damage to the printed circuit board (240).

[0040] Figure 1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention.

[0041] FIG. 2a is a cross-sectional view of a vacuum cleaner according to a first embodiment of the present invention.

[0042] Figure 2b is a cross-sectional view showing the cleaning unit in Figure 2a moved downward.

[0043] Figure 3 is an exploded view of a vacuum cleaner according to the first embodiment of the present invention.

[0044] FIG. 4 is a drawing for explaining the operating lever and elastic member of the vacuum cleaner according to the first embodiment of the present invention.

[0045] FIG. 5 is a drawing for explaining the detailed configuration of a cleaning unit according to the first embodiment of the present invention.

[0046] FIG. 6 is a drawing for explaining the arrangement relationship between a connecting portion and a guide member according to the first embodiment of the present invention.

[0047] Figure 7 is a cross-sectional view of a vacuum cleaner according to the first embodiment of the present invention.

[0048] Figure 8 is a perspective view of a battery according to the first embodiment of the present invention.

[0049] FIG. 9 is a drawing for explaining the lower housing of a battery according to the first embodiment of the present invention.

[0050] Fig. 10 is a perspective view of a cell holder according to the first embodiment of the present invention.

[0051] FIG. 11 is a drawing for explaining a state in which a battery cell is accommodated in a cell holder according to the first embodiment of the present invention.

[0052] Figure 12 is a plan view of a printed circuit board according to the first embodiment of the present invention.

[0053] FIG. 13 is a drawing for explaining the arrangement relationship of a cell holder and a printed circuit board according to the first embodiment of the present invention.

[0054] FIG. 14 is a drawing for explaining the width of a cell holder and the width of a printed circuit board according to the first embodiment of the present invention.

[0055] Fig. 15 is a cross-sectional view of a battery according to the first embodiment of the present invention.

[0056] Figure 16 is a cross-sectional side view of a battery according to the first embodiment of the present invention.

[0057] FIG. 17 is a drawing for explaining the main air exhaust path and the bypass air exhaust path according to the first embodiment of the present invention.

[0058] Fig. 18 is a cross-sectional view of a vacuum cleaner according to a second embodiment of the present invention.

[0059] FIG. 19 is a drawing showing the handle connection housing removed to explain the position of the printed circuit board according to the second embodiment of the present invention.

[0060] Figure 20 is a drawing of a battery according to a second embodiment of the present invention.

[0061] Fig. 21 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention.

[0062] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0063] 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.

[0064] 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.

[0065] 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.

[0066]

[0067] FIG. 1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention, FIG. 2a is a cross-sectional view of a vacuum cleaner according to the first embodiment of the present invention, FIG. 2b is a cross-sectional view showing a state in which a cleaning unit is moved downward in FIG. 2a, FIG. 3 is an exploded view of a vacuum cleaner according to the first embodiment of the present invention, FIG. 4 is a drawing for explaining an operating lever and an elastic member of a vacuum cleaner according to the first embodiment of the present invention, FIG. 5 is a drawing for explaining a detailed configuration of a cleaning unit according to the first embodiment of the present invention, and FIG. 6 is a drawing for explaining an arrangement relationship between a connecting portion and a guide member according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view of a vacuum cleaner according to the first embodiment of the present invention. FIG. 8 is a perspective view of a battery according to the first embodiment of the present invention. FIG. 9 is a drawing for explaining a lower housing of a battery according to the first embodiment of the present invention. FIG. 10 is a perspective view of a cell holder according to the first embodiment of the present invention. FIG. 11 is a drawing for explaining a state in which a battery cell is accommodated in a cell holder according to the first embodiment of the present invention. FIG. 12 is a plan view of a printed circuit board according to a first embodiment of the present invention. FIG. 13 is a drawing for explaining the arrangement relationship of a cell holder and a printed circuit board according to a first embodiment of the present invention. FIG. 14 is a drawing for explaining the width of a cell holder and a width of a printed circuit board according to a first embodiment of the present invention. FIG. 15 is a cross-sectional view of a battery according to a first embodiment of the present invention. FIG. 16 is a side cross-sectional view of a battery according to a first embodiment of the present invention. FIG. 17 is a drawing for explaining a main air exhaust path and a bypass air exhaust path according to the first embodiment of the present invention. FIG. 18 is a cross-sectional view of a vacuum cleaner according to a second embodiment of the present invention. FIG. 19 is a drawing for explaining the position of a printed circuit board according to a second embodiment of the present invention. FIG. 20 is a drawing of a battery according to a second embodiment of the present invention. FIG. 21 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention.

[0068]

[0069]

[0070] Example 1

[0071]

[0072] Referring to FIGS. 1 to 17, a vacuum cleaner (1) according to a first embodiment of the present invention will be described as follows.

[0073] A vacuum cleaner (1) may refer to a vacuum cleaner that is manually operated by a user. For example, the vacuum cleaner (1) may refer to a handheld vacuum cleaner or a stick vacuum cleaner.

[0074] Meanwhile, in one embodiment of the present invention, the direction of the cleaner (1) can be defined based on the time when the bottom surface (lower surface) of the battery housing (210, 220) is placed on the ground.

[0075] At this time, the front may refer to the direction in which the suction unit (120) is arranged based on the suction motor (140), and the rear may refer to the direction in which the handle (150) is arranged based on the suction motor (140). In addition, when looking at the suction unit (120) from the suction motor (140), 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 battery housing (210, 220) is placed on the ground.

[0076] The vacuum cleaner (1) may include a main body (100). The main body (100) may include a main body housing (110), a suction unit (120), a first cyclone unit (130), a suction motor (140), a handle (150), a battery coupling unit (160), and a dust bin (170).

[0077] The main body housing (110) may form the exterior of the vacuum cleaner (1). The main body housing (110) may provide a space capable of accommodating a suction motor (140) and a second filter (500) therein. The main body housing (110) may be configured in a shape similar to a cylinder.

[0078] The suction unit (120) may be positioned inside the dustbin (170). For example, the suction unit (120) may be formed in the shape of a pipe with an open interior. The suction unit (120) may be coupled to an extension pipe (not shown). The suction unit (120) may provide a suction path (120a) through which air containing dust may flow.

[0079] The suction unit (120) can be coupled to the second cyclone unit (400). The suction unit (120) can be coupled to the case (310) of the second cyclone unit (400) to be described later.

[0080] At least a portion of the suction unit (120) may be arranged inside the second cyclone unit (400). Specifically, at least a portion of the suction unit (120) may be arranged to be surrounded by a plurality of cyclone bodies (410). Accordingly, at least a portion of the suction unit (120) may extend in the same direction as or parallel to the direction in which the suction motor axis (a1) extends.

[0081] The suction part (120) may be formed in a folded shape. One end of the suction part (120) may be formed to penetrate the cover body (172a) of the discharge cover (172). The other end of the suction part (120) may be formed to penetrate the outer surface of the second cyclone part (400) (the outer surface of the case (310) or the first filter (320). Accordingly, air sucked from the outside through the suction part (120) may flow through the suction path (120a) and be discharged into the dust bin (170).

[0082] A vacuum cleaner (1) according to an embodiment of the present invention may include at least one cyclone unit capable of separating dust by cyclone flow. For example, the vacuum cleaner (1) may include a first cyclone unit (130) and a second cyclone unit (400).

[0083] The first cyclone section (130) is a configuration that applies the principle of a dust collector that uses centrifugal force to separate dust sucked into the interior of the main body (100) through the suction section (120). That is, the first cyclone section (130) refers to a space in which a cyclone flow that rotates along the inner surface of the dust bin (170) occurs, and the first cyclone section (130) may refer to a portion of the space inside the dust bin (170).

[0084] The first cyclone unit (130) can be communicated with the suction unit (120). The first cyclone unit (130) can separate dust sucked into the interior through the suction unit (120). The space inside the first cyclone unit (130) can be communicated with the space inside the dust bin (170).

[0085] The cyclone flow generated in the first cyclone section (130) may be due to the suction force of the suction motor (140).

[0086] The cyclone flow generated in the first cyclone section (130) can be formed between the inner surface of the dust bin (170) and the outer surface of the case (310) described later. That is, the cyclone flow can be formed inside the first cyclone section (130).

[0087] The space inside the first cyclone section (130) can be communicated with the suction section (120). Air and dust sucked through the suction section (120) flow along the inner surface of the first cyclone section (130), thereby generating a cyclone flow in the inner space of the first cyclone section (130).

[0088] For example, the cyclone flow generated in the first cyclone section (130) may be formed to surround the inner circumference of the dustbin (170) in a circular shape. The air sucked in through the suction section (120) flows in a circular shape along the inner circumference of the dustbin (170) based on the central axis (a2) of the dustbin, thereby allowing a cyclone flow to occur in the inner space of the first cyclone section (130).

[0089] Specifically, when the axis (a3) ​​of the cyclone flow generated in the first cyclone unit (130) is arranged vertically downward in the direction of gravity, the air sucked through the suction unit (120) can flow in a circular shape along the inner surface of the dustbin (170) based on the central axis (a2) of the dustbin. Alternatively, when the axis (a3) ​​of the cyclone flow generated in the first cyclone unit (130) is arranged parallel to the ground, the air sucked through the suction unit (120) can flow in a circular shape along the inner surface of the dustbin (170) based on the central axis (a2) of the dustbin.

[0090] As another example, the cyclone flow generated in the first cyclone section (130) may be formed in a spiral shape along the inner circumference of the dust bin (170). That is, the air sucked in through the suction section (120) flows in a spiral shape along the inner circumference of the dust bin (170), thereby generating a cyclone flow in the internal space of the first cyclone section (130).

[0091] Specifically, when the axis (a3) ​​of the cyclone flow generated in the first cyclone section (130) is arranged to be inclined with respect to the ground, the air sucked through the suction section (120) can flow in a spiral shape along the inner circumference of the dust bin (170).

[0092] The vacuum cleaner (1) according to an embodiment of the present invention may include a second cyclone unit (400) that separates dust again from the air discharged from the first cyclone unit (130). That is, the second cyclone unit (400) can filter out small dust particles that the first cyclone unit (130) and the first filter unit (300) could not filter out from the air that passed through the first cyclone unit (130) and the first filter unit (300).

[0093] At this time, the second cyclone unit (400) may be positioned inside the first cyclone unit (130) so as to minimize the size of the vacuum cleaner (1). The second cyclone unit (400) may be positioned below the suction motor (140). Specifically, the second cyclone unit (400) may be positioned inside the first filter unit (300). That is, the first cyclone unit (130) and the second cyclone unit (400) may be positioned inside the dust bin (170) with the first filter unit (300) interposed therebetween.

[0094] The second cyclone unit (400) may include a plurality of cyclone bodies (410) arranged in parallel. Accordingly, the air discharged from the first cyclone unit (130) may pass through the first filter unit (300) and be divided and passed through the plurality of cyclone bodies (410). That is, the cyclone flow generated in the second cyclone unit (400) may be formed inside the cyclone body (410).

[0095] Meanwhile, the second cyclone section (400) may also include a single cyclone body (410), and in this case, the axis (a3) ​​of the cyclone flow generated in the second cyclone section (400) may extend in the vertical direction.

[0096] In addition, the axis (a3) ​​of the cyclone flow generated in the first cyclone section (130) may also extend in the vertical direction. Accordingly, the axis (a3) ​​of the cyclone flow generated in the first cyclone section (130) and the axis (a3) ​​of the cyclone flow generated in the second cyclone section (400) may form a coaxial line in the vertical direction or may be formed in parallel.

[0097] A storage member (311) for storing dust separated from the second cyclone unit (400) may be placed inside the dust bin (170). The storage member (311) may be connected to the lower side of the case (310) and may be in contact with the upper surface of the discharge cover (172). In addition, the lower side of the storage member (311) may be open.

[0098] The storage member (311) can divide the space inside the dust bin (170) into a first dust storage unit (311a, 311) where dust separated from the first cyclone unit (130) is stored, and a second dust storage unit (311b, 311) where dust separated from the second cyclone unit (400) is stored.

[0099] Accordingly, the space between the storage member (311) and the dust bin (170) can be defined as the first dust storage unit (311a, 311), and the lower internal space of the storage member (311) can be defined as the second dust storage unit (311b, 311).

[0100] The discharge cover (172) 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 together to the outside.

[0101] The suction motor (140) can generate a suction airflow that sucks in air. The suction motor (140) can be accommodated within the main body housing (110).

[0102] The suction motor (140) can generate suction force by rotation. For example, the suction motor (140) can be provided in a shape similar to a cylinder.

[0103] At this time, cyclone flow may be generated by the suction force of the suction motor (140).

[0104] Specifically, when the suction motor (140) is operated, the air sucked through the suction unit (120) by the suction force of the suction motor (140) can generate a cyclone flow in the first cyclone unit (130) and / or the second cyclone unit (400).

[0105] The present invention may include a virtual suction motor axis (a1) extending from the rotation axis of the suction motor (140).

[0106] The suction motor (140) may be located inside the main body housing (110). In addition, the suction motor (140) may be located above the second cyclone unit (400). Accordingly, the suction motor (140) may be located above the dust bin (170).

[0107] The suction motor (140) can be connected to the outlet of the second cyclone section (400).

[0108] The axis (a3) ​​of the cyclone flow of the first cyclone section (130) can pass through the suction motor (140).

[0109] In an embodiment of the present invention, when the suction motor (140) is positioned above the second cyclone section (400), the air discharged from the second cyclone section (400) can flow directly toward the suction motor (140), so that the flow path between the second cyclone section (400) and the suction motor (140) can be minimized.

[0110] A main air exhaust port (110a) for exhausting air discharged from a suction motor (140) may be formed in the main body housing (110). The main air exhaust port (110a) may include a plurality of openings communicating with the outside. For example, these plurality of openings may be formed in a slit shape. In addition, the main air exhaust port (110a) may be formed on the left and right sides of the main body housing (110). Accordingly, when a user holds the cleaner (1), the exhaust of the suction motor (140) may not be directed toward the user's face.

[0111] Most of the air discharged from the suction motor (140) can be discharged through the main air outlet (110a), and at least a portion of the air discharged from the suction motor (140) can be discharged through the bypass air outlet (226) to be described later. For example, 90% of the air discharged from the suction motor (140) can be discharged through the main air outlet (110a), and the remaining 10% of the air discharged from the suction motor (140) can be discharged through the bypass air outlet (226).

[0112] A flow guide may be arranged in the main body housing (110). The flow guide may guide the flow of air discharged through the main air outlet (110a).

[0113]

[0114] The handle (150) can be held by the user. The handle (150) may have a cylindrical shape with both longitudinal ends open. One longitudinal end of the handle (150) may be in communication with the main body housing (110) in which the suction motor (140) is accommodated. The other longitudinal end of the handle (150) may be in communication with the inside of the battery (200). More specifically, when the battery (200) is coupled to the main body (100), the handle (150) may be in communication with the inside of the battery (200) through a ventilation hole (216) arranged on the upper surface of the battery (200).

[0115] A cooling path (150a) may be formed inside the handle (150) through which at least a portion of the air discharged from the suction motor (140) flows. The cooling path (150a) may be connected to the internal space of the battery (200) through a ventilation hole (216). The air that has passed through the cooling path (150a) into the battery (200) passes through the space between the cell holders (250) and is discharged to the outside through the bypass air outlet (226) located on the lower surface of the battery (200).

[0116] That is, the air discharged from the suction motor (140) can be introduced into the battery (200) and the air inside the battery (200) can be discharged to the outside. In this process, the air can pass between the battery cells (260) and circulate the air around the battery cells (260). Through this, the temperature of the battery cells (260) can be lowered. This has the effect of increasing the efficiency of the battery and preventing the performance of the battery cells (260) from being degraded due to overheating. In addition, there is the effect of preventing the heat emitted from the battery cells (260) from being continuously transferred to the printed circuit board (240) and causing damage to the printed circuit board (240).

[0117] In addition, air filtered of dust by the filter can flow to the cooling channel (150a). Air introduced into the vacuum cleaner body (100) can pass through the first filter (320) and have dust separated first by the first cyclone unit (130). Air passing through the first cyclone unit (130) can pass through the second cyclone unit (400) and the second filter (500) to have dust separated secondarily. Through this, dust can be prevented from accumulating inside the handle (150) or the battery (200). In addition, deterioration of the performance of the printed circuit board (240) due to dust can be prevented.

[0118] The handle (150) may be placed between the suction motor (140) and the battery (200). In addition, the handle (150) may be placed at a predetermined angle with the main body housing (110), the suction motor (140), or the first cyclone unit (130). The handle (150) may include a grip portion formed in a pillar shape so that a user can grip it, a first extension portion connected to one longitudinal (axial) end of the grip portion and extending toward the suction motor (140), and a second extension portion connected to the other longitudinal (axial) end of the grip portion and extending toward the dust bin (170).

[0119] Meanwhile, in this embodiment, a virtual handle penetration line extending along the longitudinal direction of the handle (axial direction of the column) and penetrating the handle can be formed.

[0120] For example, the handle penetration line may be a virtual line formed inside a cylindrical handle (150), and may be a virtual line formed parallel to at least a portion of the outer surface (outer circumference) of the handle.

[0121] The upper surface of the handle (150) 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 (150).

[0122] The first extension portion may extend from the grip portion toward the main body housing (110) or the suction motor (140). At least a portion of the first extension portion may extend in a horizontal direction.

[0123] The second extension may extend from the phasing portion toward the dust bin (170). At least a portion of the second extension may extend horizontally.

[0124] The control unit (110b) may be placed on the main body housing (110). The control unit (110b) may be placed on the outer surface of the main body housing (110). The control unit (110b) may be composed of a plurality of buttons, and when a user presses a corresponding button, a corresponding command may be executed. The user may input an operation or stop command for the cleaner (1) through the control unit (110b).

[0125]

[0126] The vacuum cleaner (1) may include a battery coupling part (160). The battery coupling part (160) may be positioned at the lower rear side of the main body (100). The battery coupling part (160) may be positioned at the lower side of the handle (150).

[0127] A battery (200) is detachably connected to the battery coupling portion (160). The battery (200) is detachably connected to the battery coupling portion (160) in a sliding manner. The battery (200) can be connected by moving from the rear to the front of the battery coupling portion (160), and can be separated by moving from the rear to the rear of the battery coupling portion (160).

[0128]

[0129] The main body (100) may include a dust bin (170). The dust bin (170) may be connected to the suction unit (120). A first cyclone unit (130) may be located inside the dust bin (170). The dust bin (170) may store dust separated from the first cyclone unit (130).

[0130] The dustbin (170) may include a dustbin body (171), a discharge cover (172), a dustbin compression lever (not shown), and a compressor (not shown).

[0131] The dustbin body (171) can provide a space for storing dust separated from the first cyclone unit (130). For example, the dustbin body (171) can be formed in a shape similar to a cylinder.

[0132] Meanwhile, in the present embodiment, a virtual dustbin central axis (a2) may be formed by penetrating the interior (internal space) of the dustbin main body (171) and extending along the longitudinal direction of the dustbin main body (171) (meaning the axial direction in the cylindrical dustbin main body (171)). Accordingly, the longitudinal axis of the dustbin may mean the dustbin central axis (a2).

[0133] The lower surface (bottom surface) of the dustbin body (171) may be partially open. In addition, a lower extension (not shown) may be formed on the lower surface (bottom surface) of the dustbin body (171). The lower extension may be formed to block a portion of the lower surface of the dustbin body (171).

[0134] The dustbin (170) may include a discharge cover (172). The discharge cover (172) may be placed on the lower surface of the dustbin (170).

[0135] The discharge cover (172) may be provided to open and close one end in the longitudinal direction of the dustbin body (171). Specifically, the discharge cover (172) may selectively open and close the lower part of the dustbin (170) that opens downward.

[0136] The discharge cover (172) may include a cover body (172a) and a hinge portion (172b). The cover body (172a) may be formed to block a portion of the lower surface of the dustbin body (171). The cover body (172a) may rotate downward based on the hinge portion (172b). The hinge portion (172b) may be arranged adjacent to the battery housing (210, 220). A torsion spring may be provided in the hinge portion (172b). Therefore, when the discharge cover (172) is separated from the dustbin body (171), the cover body (172a) may be supported in a state in which it is rotated by a predetermined angle or more about the hinge portion (172b) as an axis in the dustbin body (171) by the elastic force of the torsion spring.

[0137] The discharge cover (172) can be coupled to the dust bin (170) through a hook connection. Meanwhile, the discharge cover (172) can be separated from the dust bin (170) through a coupling lever (not shown). The coupling lever (not shown) can be arranged at the front of the dust bin (170). Specifically, the coupling lever (not shown) can be arranged on the outer surface of the front side of the dust bin (170). When an external force is applied, the coupling lever (not shown) can elastically deform a hook extended from the cover body (172a) to release the hook connection between the cover body (172a) and the dust bin body (171).

[0138] When the discharge cover (172) is closed, the lower surface of the dust bin (170) may be blocked (sealed) by the discharge cover (172) and the lower extension.

[0139] The dustbin (170) may include a dustbin compression lever. The dustbin compression lever may be disposed outside the dustbin (170). The dustbin compression lever may be disposed outside the dustbin (170) to move up and down. The dustbin compression lever may be connected to a compressor (not shown). When the dustbin compression lever moves downward due to an external force, the compressor (not shown) may also move downward. This may provide convenience to the user. The compressor (not shown) 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 (not shown) upward.

[0140] A compressor (not shown) may be placed inside the dustbin body (171). The compressor may move within the internal space of the dustbin body (171). Specifically, the compressor may move up and down within the dustbin body (171). Through this, the compressor may compress dust within the dustbin body (171) downward. In addition, when the discharge cover (172) is separated from the dustbin body (171) and the lower portion of the dustbin (170) is opened, the compressor may move from the upper portion to the lower portion of the dustbin (170) to remove foreign substances such as residual dust within the dustbin (170). Through this, the suction power of the vacuum cleaner may be improved by preventing residual dust from remaining within the dustbin (170). In addition, by preventing residual dust from remaining within the dustbin (170), an unpleasant odor caused by the residual dust may be eliminated.

[0141]

[0142] The vacuum cleaner (1) may include a battery (200).

[0143] For example, the battery (200) can be detachably coupled to the vacuum cleaner (1). The battery (200) can be detachably coupled to the battery coupling portion (160) of the main body (100).

[0144] The battery (200) stores electric energy and can supply power to each component including the suction motor (140) of the vacuum cleaner (1). The battery (200) can be placed at the bottom of the handle (150). With respect to the handle (150), the heavy suction motor (140) is placed at the upper side of the handle (150), and the light battery (200) is placed at the lower side of the handle (150), so that the weight of the entire vacuum cleaner (1) can be evenly distributed. This can prevent the user's wrist from being strained when the user holds the handle (150) and cleans.

[0145]

[0146] Meanwhile, the battery (200) includes an upper housing (210), a lower housing (220), a button portion (230), a printed circuit board (240), a cell holder (250), and a battery cell (260).

[0147] The battery housing (210, 220) forms the outer shape of the battery (200) and forms a space inside where other components can be stored. The battery housing (210, 220) may be composed of an upper housing (210) and a lower housing (220).

[0148]

[0149] The upper housing (210) forms the upper outer shape of the battery (200) and is coupled to the lower side of the handle (150). The upper housing (210) may be formed in a similar shape to a box with an open lower side. Specifically, the upper housing (210) may include an upper cover part (211), a pair of side cover parts (212) extending downwardly from both sides of the longitudinal axis of the upper cover part (211), a front cover part (213) extending downwardly from the front end of the upper cover part (211), and a rear cover part (214) extending downwardly from the rear end of the upper cover part (211).

[0150] The upper cover part (211) may be formed in a shape corresponding to the shape of the lower side of the handle (150) so as to be combined with the lower side of the handle (150). For example, the upper cover part (211) may include an upper cover surface (211a) formed in a flat shape and a rear cover surface (211b) formed in a step that protrudes upward from the upper cover surface (211a). In addition, the rear cover surface (211b) may be formed with a predetermined height difference from the upper cover surface (211a). The rear end of the upper cover surface (211a) and the front end of the rear cover surface (211b) may be connected by a stopper wall (211c). That is, the stopper wall (211c) may mean a surface that extends upward from the rear outer surface of the upper cover surface (211a) and is connected to the front outer surface of the rear cover surface (211b). With this configuration, the lower part of the handle (150) can slide along the upper cover surface (211a) and then come into contact with the stopper wall (211c) to limit its movement.

[0151] Meanwhile, the upper cover portion (211) further includes a pair of coupling guide portions (211d). The coupling guide portions (211d) may be formed to protrude upward from the upper cover surface (211a). That is, the coupling guide portions (211d) may function as a kind of guide rail. With this configuration, when the battery (200) is coupled, the lower end of the handle (150) can slide along the coupling guide portions (211d) to ensure stable coupling. In addition, when the battery (200) is coupled, the battery (200) can be prevented from being separated in the vertical direction.

[0152] The front cover portion (213) may be formed to cover the front of the upper housing (210). For example, the front cover portion (213) may be formed to extend downward from the front end of the upper cover portion (211). The front cover portion (213) may be formed to extend downward from the front end of the upper cover surface (211a).

[0153] The front cover portion (213) may further include a battery terminal receiving portion (213a) that protrudes along the length direction of the battery (200). The battery terminal receiving portion (213a) may include a plurality of slits on the front into which main body terminals (not shown) can be inserted.

[0154] Meanwhile, a pair of side cover parts (212) may be formed symmetrically to each other. For example, a pair of side cover parts (212) may be formed to extend downward based on the upper cover part (211) and may be formed in a curved shape having a predetermined curvature. In addition, the side cover part (212) may further include a button receiving part (215). The button receiving part (215) may form a hole corresponding to the outer shape of the button part (230) when the upper housing (210) and the lower housing (220) are coupled. The button part (230) may be received inside the hole.

[0155] The rear cover portion (214) may be formed to cover the rear of the upper housing (210). For example, the rear cover portion (214) may be formed to extend downward from the rear end of the upper cover portion (211). The rear cover portion (214) may be formed to extend downward from the rear end of the rear cover surface (211b) of the upper cover portion (211). In this case, according to an embodiment, the rear end of the rear cover surface (211b) and the rear cover portion (214) may be connected in the form of a curved and continuous surface. Through this, when an external force is applied, the impact may be prevented from being concentrated at a specific location.

[0156] The upper housing (210) may further include a ventilation hole (216) communicating with the cooling channel (150a). The ventilation hole (216) may be formed by including a plurality of openings. More specifically, the ventilation hole (216) may be arranged on the upper cover surface (211a) and may be arranged between a pair of coupling guide parts (211d). In addition, the ventilation hole (216) may be arranged at a portion where an imaginary handle penetration line passing through the handle and the upper cover surface (211a) meet. Through this, air flowing inside the handle (150) may be directly moved to the internal space of the battery (200) through the ventilation hole (216).

[0157]

[0158] The lower housing (220) forms the lower outer shape of the battery (200) and, when combined with the upper housing (210), provides a space that can accommodate components including a printed circuit board (240), a cell holder (250), and a battery cell (260) therein.

[0159] The lower housing (220) may be formed in a similar shape to a box with an open upper side. Specifically, the lower housing (220) may include a lower cover portion (221), a pair of side cover portions (222) formed to extend upward from both sides of the longitudinal axis of the lower cover portion (221), a front cover portion (223) formed to extend upward from the front end of the lower cover portion (221), and a rear cover portion (224) formed to extend upward from the rear end of the lower cover portion (221).

[0160] The lower cover part (221) is formed in a flat plate shape, and a cell holder (250) and a battery cell (260) can be arranged on the upper surface. That is, the lower cover part (221) is formed in a rectangular flat plate shape, and the cell holder (250) is arranged on the upper surface, so that the battery cell (260) arranged inside the cell holder (250) can be supported.

[0161] A pair of side cover parts (222) may be formed symmetrically to each other. For example, a pair of side cover parts (222) may be formed to extend upward based on the lower cover part (221) and may be formed in a curved shape having a predetermined curvature. In addition, the side cover part (222) may further include a button receiving part (225). The button receiving part (225) may form a hole corresponding to the outer shape of the button part (230) when coupled with the upper housing (210). The button part (230) may be received inside the hole.

[0162] The front cover portion (223) may be formed to cover the front of the lower housing (220). The front cover portion (223) may cover the front of the battery cell (260). For example, the front cover portion (223) may be formed to extend upward from the front end of the lower cover portion (221).

[0163] The rear cover portion (224) may be formed to cover the rear of the lower housing (220). In this case, depending on the embodiment, the rear end of the lower cover portion (221) and the rear cover portion (224) may be connected in the form of a curved and continuous surface. This can prevent the impact from being concentrated at a specific location when an external force is applied.

[0164] Meanwhile, the lower housing (220) may be provided with a fastening portion (not shown) that is coupled with the upper housing (210). For example, the fastening portion (not shown) may be formed to protrude from the inner surface of the side cover portion (222) and the rear cover portion (224), and may extend upward so as to extend higher than the upper ends of the side cover portion (222) and the rear cover portion (224). A groove or hole may be formed in a portion of the upper side of the fastening portion (not shown) so that a hook can be caught. With this configuration, when the upper housing (210) and the lower housing (220) are fitted together, the fastening portion (not shown) of the upper housing (210) can be hook-coupled.

[0165] Accordingly, when looking at the overall shape of the housing of the battery (200) in which the upper housing (210) and the lower housing (220) are combined, it can be formed into a shape similar to a rectangular parallelepiped. At this time, a printed circuit board (240), a cell holder (250), and a battery cell (260) can be accommodated inside the housing of the battery (200).

[0166] The lower housing (220) may further include a bypass air outlet (226) through which air drawn into the battery (200) through the ventilation hole (216) is discharged to the outside. More specifically, at least a portion of the air discharged from the suction motor (140) may flow along the cooling channel (150a) inside the handle (150). The air drawn into the battery (200) along the cooling channel (150a) may move to the outside through the bypass air outlet (226) that is in communication with the cooling channel (150a).

[0167] The bypass air outlet (226) may be arranged in the lower cover portion (221) of the battery (200). For example, the bypass air outlet (226) may be in the shape of a slit hole extending in the width direction of the battery (200). A plurality of bypass air outlets (226) may be formed. A plurality of bypass air outlets (226) may be arranged at predetermined intervals along the length direction of the battery (200).

[0168] In addition, the bypass air exhaust port (226) may further include a discharge guide portion (226a). The discharge guide portion (226a) may include a first guide surface that protrudes upward from the lower cover portion (221) and a second guide surface that is connected to the first guide surface and extends toward the front cover portion (223). That is, the second guide surface may be formed to have a predetermined height difference from the lower cover portion (221) and to form a step. Accordingly, the air inside the battery (200) may be bent by the first and second guide surfaces and then discharged to the outside. Through this structure, the air may circulate in the internal space of the battery (200) and then be discharged to the outside through the bypass air exhaust port (226).

[0169] In addition, the battery (200) of the present invention may include a button portion (230). The button portion (230) is configured to secure the battery (200) to the battery coupling portion (160) or separate the battery (200) from the battery coupling portion (160). The button portion (230) may be placed on both sides of the battery. The button portion (230) may be accommodated in a button receiving portion (225) formed by combining the side cover portion (222) of the upper housing (210) and the side cover portion (222) of the lower housing (220). The button receiving portion (225) may be formed in a hole shape corresponding to the outer shape of the button portion (230).

[0170]

[0171] The battery (200) of the present invention may include a printed circuit board (240). The printed circuit board (240) may be mounted with elements for controlling the battery cell (260) and elements for controlling the main body (100). Specifically, the printed circuit board (240) according to one embodiment of the present invention may be mounted with circuit elements for controlling charging and discharging of the battery cell (260) by being connected to the battery cell (260), as well as circuit elements for driving the suction motor (140) by being connected to the vacuum cleaner (1).

[0172] The printed circuit board (240) can be accommodated in an internal space formed by combining the upper housing (210) and the lower housing (220). The printed circuit board (240) can be placed on the upper side of the cell holder (250). The printed circuit board (240) can be placed between the cell holder (250) and the upper cover portion (211).

[0173]

[0174] The printed circuit board (240) may include a board body (241), a guide hole (244), a heat dissipation hole (243), and a battery terminal (242).

[0175] First, the substrate body (241) may be a substrate formed in a rectangular shape. At least a portion of the substrate body (241) may be arranged to face the upper cover surface (211a). At this time, the width (W1) of the substrate body in the left-right direction may be narrower than the width (W2) of the cell holder. Through this configuration, a space can be formed between the left-right ends of the substrate body (241) and the side cover portion (222) of the battery (200). In addition, the substrate body (241) can be prevented from completely covering the upper side of the cell holder (250) and a space through which air can flow can be formed.

[0176] As a result, it is possible to prevent heat emitted from a heating element mounted on a substrate body (241) from being concentrated and transferred to a battery cell (260), thereby deteriorating the performance of the battery cell (260). In addition, it is possible to prevent heat emitted from a battery cell (260) from being continuously transferred to a printed circuit board (240), thereby preventing damage to the printed circuit board (240).

[0177] Additionally, the length of the substrate body (241) may be longer than the length of the cell holder (250). When the printed circuit board (240) is placed on the upper surface of the cell holder (250), a portion of the substrate body (241) may be formed to protrude toward the front. A battery terminal (242) may be placed on the protruding portion of the substrate body (241).

[0178] The printed circuit board (240) may include a guide hole (244). A plurality of guide holes (244) are formed in the board body (241) and may guide the coupling position of the cell holder (250) and the printed circuit board (240). A coupling member such as a screw may pass through the guide hole (244).

[0179] In addition, the printed circuit board (240) may further include a heat dissipation hole (243) through which air introduced into the ventilation hole (216) passes. For example, the heat dissipation hole (243) may be formed as a square hole in the printed circuit board (240). In addition, the width of the heat dissipation hole (243) may be formed to be 1 / 3 of the width of the printed circuit board (240). The heat dissipation hole (243) may be arranged at the same position as the ventilation hole (216) of the upper housing (210) when the battery (200) is viewed from above. Accordingly, the air passing through the cooling channel (150a) may pass through the ventilation hole (216) and flow directly through the heat dissipation hole (243).

[0180] The printed circuit board (240) may include a battery terminal (242) arranged on one side in the length direction. The battery terminal (242) may be coupled with a main body terminal (not shown) and may be physically, electrically, and signalically connected to the main body (100). A portion of the battery terminal (242) may be coupled to the lower side of the printed circuit board (240), and a portion may be formed to protrude in the length direction of the printed circuit board (240).

[0181] The battery terminal (242) can be accommodated inside the front cover portion (223) of the upper housing (210). The front cover portion (223) of the upper housing (210) can further include a battery terminal receiving portion (213a) that accommodates the battery terminal (242). The battery terminal receiving portion (213a) can include a plurality of slits for inserting a main body terminal (not shown). When the battery (200) is coupled to the battery coupling portion (160), the main body terminal (not shown) protruding from the battery coupling portion (160) can be inserted into the battery terminal receiving portion (213a) and coupled with the battery terminal (242).

[0182]

[0183] The battery (200) may include a cell holder (250) that surrounds a battery cell (260). The cell holder (250) is arranged in an internal space of the battery (200) formed by combining the upper housing (210) and the lower housing (220), and is provided to surround at least a portion of the battery cell (260). More specifically, the cell holder (250) may surround both longitudinal ends of the battery cell (260).

[0184] The cell holder (250) may include a first cell holder (251) that surrounds one longitudinal side of the battery cell (260) and a second cell holder (252) that is coupled to the first cell holder (251) and surrounds the other longitudinal side of the battery cell (260). In this case, the cell holders (250) are formed so that assembly is possible by inserting them on both longitudinal sides of the battery cell (260) and then coupling them to each other.

[0185] According to one embodiment of the present invention, the cell holder (250) may be formed to surround a portion of the battery cell (260). Specifically, the portion of the battery cell (260) that the cell holder (250) surrounds may be formed to be shorter than half of the total length of the battery cell (260). Accordingly, a portion of the battery cell (260) may be accommodated inside the cell holder (250) in an exposed state. Due to this configuration, air introduced into the battery (200) may flow around the outer surface of the battery cell (260) and cool the battery cell (260). In addition, when the battery cells (260) are spaced apart from each other, air may flow between the battery cells (260), thereby providing an additional cooling effect.

[0186]

[0187] Additionally, each cell holder (250) may include a cell receiving portion (253), a cell holder connecting portion (254), and a power connection hole (255).

[0188] First, the cell receiving portion (253) is formed to surround at least a portion of the battery cell (260). For example, the cell receiving portion (253) may be formed to have a plurality of cylindrical internal spaces. The cell receiving portion (253) may receive a plurality of battery cells (260) arranged in a longitudinal direction parallel to each other. More specifically, four battery cells (260) may be arranged in a longitudinal direction parallel to each other, and three battery cells (260) may be stacked in the space between the four battery cells (260). Through this configuration, the height of the space occupied by the battery cells (260) may be minimized.

[0189] The cell receiving portion (253) may be formed to correspond to a shape in which a plurality of battery cells (260) are stacked in two layers. Specifically, the cell receiving portion (253) has a rectangular body, and in the first layer, four cylindrical internal spaces may be arranged in a row, and in the second layer, three cylindrical internal spaces may be arranged alternately in the gaps between the four cylindrical internal spaces of the first layer.

[0190] In addition, the cell holder (250) may include a cell holder connecting portion (254) connecting the first cell holder (251) and the second cell holder (252). That is, the cell holder connecting portion (254) of the first cell holder (251) and the cell holder connecting portion (254) of the second cell holder (252) are combined to assemble the cell holder (250). The cell holder connecting portion (254) may be formed to protrude in a cylindrical shape along the longitudinal direction of the battery cell (260) from the cell receiving portion (253). That is, the cell holder connecting portion (254) may be arranged parallel to the longitudinal direction of the battery cell (260).

[0191] The longitudinal end of the cell holder connection portion (254) of the first cell holder (251) may further include a coupling protrusion. A coupling groove may be formed recessed in the longitudinal end of the cell holder connection portion (254) of the second cell holder (252). By coupling the coupling protrusion and the coupling groove, the first cell holder (251) and the second cell holder (252) may be fixed in a coupled state. Conversely, a coupling groove may be formed in the cell holder connection portion (254) of the first cell holder (251), and a coupling protrusion may be formed in the cell holder connection portion (254) of the second cell holder (252).

[0192] A plurality of cell holder connecting portions (254) may be formed. For example, three cell holder connecting portions (254) may be formed. Two cell holder connecting portions (254) may be formed at the upper side and one at the lower side when the cell receiving portion (253) is viewed from the side. Each cell holder connecting portion (254) may be arranged diagonally from each other. With this configuration, sufficient fixing force between the first cell holder (251) and the second cell holder (252) can be provided through a minimum number of cell holder connecting portions (254).

[0193] In addition, the cell holder connection part (254) may be arranged at the outermost part of the cell receiving part (253). For example, the cell receiving part (253) may have a square shape when viewed from the side. Two cell holder connection parts (254) located at the upper part of the cell receiving part (253) may be arranged at two corners of the square. In addition, one cell holder connection part (254) located at the lower part may be arranged in contact with the center of the bottom surface of the square. Through this configuration, the cooling efficiency of the battery cell (260) may be increased by not obstructing the flow of air flowing inside the battery (200).

[0194] In addition, the cell holder (250) may further include a power connection hole (255). The power connection hole (255) may be formed at both longitudinal ends of the battery cell (260), i.e., where the electrodes meet. A power connection terminal that makes contact with the electrode of the battery cell (260) may be accommodated inside the power connection hole (255). The power connection terminal may be connected to a printed circuit board (240) arranged on the upper portion of the cell holder (250). Through this, the battery terminal (242) connected to the printed circuit board (240) may be electrically connected to the electrode of the battery cell (260).

[0195] At this time, the power connection hole (255) may be formed independently as a single hole in the cell holder (250) surrounding the corresponding battery cell (260) corresponding to one battery cell (260). Alternatively, the power connection hole (255) may be formed in the shape of a long hole formed along the front-back direction so as to enable connecting the electrodes of two adjacent battery cells (260) to each other.

[0196]

[0197] The battery cell (260) is coupled to the cell holder (250), accommodated inside the housing of the battery (200), and supplies power to the vacuum cleaner (1) and the suction motor (140). A plurality of battery cells (260) may be provided. In this case, the plurality of battery cells (260) may be connected in series or in parallel, and the series and parallel may be switched.

[0198]

[0199] According to one embodiment of the present invention, the path through which air discharged from the suction motor (140) is discharged will be described in detail.

[0200] First, the air passing through the second cyclone section (400) flows into the main body housing (110). Most of the air discharged from the suction motor (140) is discharged upward through the main air discharge port (110a). For example, more than 90% of the air discharged from the suction motor (140) can be discharged to the outside through the main air discharge port (110a) arranged in the main body housing (110).

[0201] Meanwhile, a portion of the air discharged from the suction motor (140) may pass through the internal space of the handle (150) and the internal space of the battery (200) and be discharged to the outside through the bypass air discharge port (226). For example, less than 10% of the air discharged from the suction motor (140) may be discharged to the outside through the bypass air discharge port (226).

[0202] More specifically, a portion of the air discharged from the suction motor (140) may be introduced into the interior of the handle (150) that is connected to the main body housing (110). The air that flows along the cooling channel (150a) formed in the interior space of the handle (150) may flow to the battery coupling unit (160) arranged on the lower side of the handle (150). The air that flows to the battery coupling unit (160) may flow into the interior space of the battery (200) through the ventilation hole (216) arranged on the upper surface of the battery (200). The air that flows into the interior space of the battery (200) may pass through the heat dissipation hole (243) of the printed circuit board (240). The air that passes through the heat dissipation hole (243) may circulate in the space between the first cell holder and the second cell holder and the space between the battery cells (260). The air circulating inside the battery (200) can be discharged to the outside through the bypass air outlet (226) located on the lower surface of the battery (200).

[0203] In summary, the present invention may form a main air discharge path (MP) and a bypass air discharge path (BP). The main air discharge path (MP) may be connected to the main air discharge port (110a). Air passing through the second cyclone unit (400) may flow through the main air discharge path (MP) formed inside the main body housing (110) and be discharged to the main air discharge port (110a).

[0204] Additionally, the bypass air discharge path (BP) may be connected to the bypass air outlet (226). At least a portion of the air that has passed through the second cyclone section (400) may flow through the bypass air discharge path (BP) formed inside the handle (150) and the battery (200) and be discharged to the bypass air outlet (226).

[0205] In addition, the present invention includes a virtual handle penetration line that extends along the longitudinal direction of the handle (150) and passes through the handle (150), and the handle penetration line can pass through the suction motor (140), the ventilation hole (216), the heat dissipation hole (243), and the bypass air exhaust hole (226).

[0206] Accordingly, there is an effect of efficiently reducing heat generation by setting the air flow path to the shortest distance.

[0207]

[0208] The vacuum cleaner (1) may include an extension pipe (not shown). The extension pipe (not shown) may be connected to a cleaning module (not shown). The extension pipe (not shown) may be connected to the main body (100). The extension pipe (not shown) may be connected to a suction unit (120) of the main body (100). The extension pipe (not shown) may be formed in a long cylindrical shape.

[0209] The main body (100) can be connected to an extension pipe (not shown). The main body (100) can be connected to a cleaning module through the extension pipe (not shown). The main body (100) can generate suction force through a suction motor (140) and provide suction force to the cleaning module through the extension pipe (not shown). External dust can be introduced into the main body (100) through the cleaning module and the extension pipe (not shown).

[0210] The vacuum cleaner (1) may include a cleaning module (not shown). The cleaning module (not shown) may be connected to an extension tube (not shown). Accordingly, external air may be drawn into the main body (100) of the vacuum cleaner (1) through the cleaning module (not shown) and the extension tube (not shown) by the suction force generated in the main body (100) of the vacuum cleaner (1).

[0211] The vacuum cleaner (1) may include a first filter unit (300). The first filter unit (300) may filter air discharged from the first cyclone unit (130). The first filter unit (300) may guide air from which dust has been separated while passing through the first cyclone unit (130) to the second cyclone unit (400).

[0212] The first filter unit (300) may include a case (310) and a first filter (320).

[0213] The case (310) can be placed inside the dustbin (170). The case (310) can be placed inside the first cyclone unit (130).

[0214] A space may be formed inside the case (310). A second cyclone unit (400) may be placed inside the case (310).

[0215] The case (310) may be formed in a cylindrical shape, although this is not limited to the shape.

[0216] The case central axis (a4) can extend in the vertical direction. The case central axis (a4) can extend along the longitudinal direction of the case (310).

[0217] For example, the case central axis (a4) may be formed coaxially with the axis (a3) ​​of the cyclone flow generated in the first cyclone section (130). As another example, the case central axis (a4) may be formed parallel to the axis (a3) ​​of the cyclone flow generated in the first cyclone section (130). As yet another example, the case central axis (a4) of the case (310) may be formed coaxially with the suction motor axis (a1).

[0218] The first filter (320) can filter out dust from the air discharged from the first cyclone section (130).

[0219] The first filter (320) may have a plurality of holes having a predetermined diameter. Accordingly, large foreign substances contained in the air discharged from the first cyclone unit (130) can be filtered by the first filter (320).

[0220] The first filter (320) may be placed in the case (310). Alternatively, the first filter (320) may refer to a portion of the case (310). Alternatively, the lower edge of the first filter (320) may be coupled to the case (310).

[0221] Air passing through the first filter (320) can be introduced into the second cyclone section (400) placed inside the case (310).

[0222] At this time, the outer side and / or outside of the case (310) may mean the direction facing the first cyclone unit (130) based on the case (310), and the inner side and / or inside of the case (310) may mean the direction facing the second cyclone unit (400) based on the case (310).

[0223]

[0224] A vacuum cleaner according to an embodiment of the present invention may include a second cyclone unit (400).

[0225] The second cyclone unit (400) may be arranged at least partially inside the first cyclone unit (130) and may separate dust from the air discharged from the first cyclone unit (130). After the dust is separated from the air by the first cyclone unit (130), the air discharged from the first cyclone unit (130) may flow into the second cyclone unit (400) along the flow path.

[0226] The second cyclone section (400) may be formed by a set of axial cyclones formed to separate dust from air flowing in the axial direction.

[0227] The second cyclone section (400) may include a cyclone body (410), a vortex finder (420), and a band member (430).

[0228] The cyclone body (410) is a structure that applies the principle of a dust collector that uses centrifugal force to separate dust from air that has passed through the first filter unit (300). Specifically, the cyclone body (410) can separate dust from air that has passed through the first filter (320) by using cyclone flow. Since a space through which air can flow can be formed inside the cyclone body (410), air that has passed through the first filter (320) can be introduced into the inside of the cyclone body (410).

[0229] The cyclone body (410) may be placed inside the case (310). Specifically, at least a portion of the cyclone body (410) may be placed inside the case (310), and air passing through the first filter (320) may be introduced into the inside of the cyclone body (410).

[0230] A plurality of cyclone bodies (410) may be provided. Each cyclone body (410) may be formed with an inlet forming an outer wall around the hollow portion. The outer walls around the hollow portion formed by the cyclone bodies (410) may correspond to the outer walls of each axial cyclone. Air discharged from the first cyclone section (130) may be introduced into the cyclone body (410) through the inlet. Air circulating along the inner surface of the cyclone body (410) may form a cyclone flow.

[0231] Dust, which is heavier than air, can rotate within a vortex with a larger rotation radius than air. Since the dust rotates inside the cyclone body (410), the maximum rotation radius of the dust can be defined by the cyclone body (410).

[0232] The lower part of the cyclone body (410) may have a slanted shape that becomes narrower as it goes down. The lower part of the cyclone body (410) has a shape that becomes narrower as it goes down to induce the falling of dust separated from the air and prevent the dust from being discharged along the air to the vortex finder (420).

[0233] An exhaust port may be formed at the bottom of the cyclone body (410). That is, dust separated from the air inside the cyclone body (410) may be discharged from the cyclone body (410) through the exhaust port. In addition, the bottom of the cyclone body (410) may be communicated with the internal space of the storage member (311). Therefore, dust rotating along the vortex inside the cyclone body (410) may fall and be stored in the storage member (311). The dust stored in the storage member (311) may be communicated with the external space when the exhaust cover (172) is opened.

[0234] The upper portion of the cyclone body (410) may be formed to accommodate a vortex finder (420). The upper portion of the cyclone body (410) may be formed to have a constant inner diameter. The upper and lower portions of the cyclone body (410) may be distinguished based on the position where the inner diameter narrows.

[0235] The outer surface of each cyclone body (410) is connected to be in contact with the surrounding cyclone bodies (410), so that a plurality of cyclone bodies (410) may form a single member. It is preferable that the cross-section of each cyclone body (410) has a circular shape as illustrated in the drawing. This is because when the cross-section of the cyclone body (410) is formed in a circular shape, even if the outer surfaces of adjacent cyclone bodies (410) are in close contact with each other, a flow path for air and dust can be formed between them. If a flow path for air and dust is formed between the cyclone bodies (410), there is an advantage in that a separate flow path structure does not need to be installed.

[0236] It is not excluded that the cross-section of each cyclone body (410) may be formed as a polygon. However, even if the cross-section of each cyclone body (410) is formed as a polygon, it is preferable that it be formed as a polygon in which a path for air and dust can be formed.

[0237] The vortex finder (420) is configured to discharge air that has passed through the cyclone flow from the inside of the cyclone body (410).

[0238] A path through which air can flow may be formed inside the vortex finder (420). A plurality of vortex finders (420) may be provided, and at least a portion of each vortex finder (420) may be disposed inside each cyclone body (410). The outer surface of each vortex finder (420) may be spaced apart from the inner surface of each cyclone body (410). Each vortex finder (420) has an inlet forming an outer wall around the hollow portion, and air passing through the cyclone body (410) may be discharged through the inlet of each vortex finder (420). In addition, air introduced into the inlet of the vortex finder (420) may flow upward and be discharged through the outlet of the vortex finder (420).

[0239] The lower portion of the vortex finder (420) may have a higher height than the band member (430). However, the upper portion of the vortex finder (420) may have the same height as the band member (430). The lower portion of the vortex finder (420) may protrude below the band member (430), but the upper portion may not.

[0240] It is preferable that the cross-section of each vortex finder (420) has a circular ring shape. It is not excluded that the cross-section of each vortex finder (420) is formed into a polygon. However, even if the cross-section of each vortex finder (420) is formed into a polygon, it is preferable that it be formed into a polygon that can form a path for air and dust.

[0241] The band member (430) may be formed to surround the outer surface of the vortex finder (420). At this time, the band member (430) may be named by other names as needed. For example, names such as a ring portion, a ring portion, a border portion, a perimeter portion, a circle portion, a support portion, a connection portion, an outer portion, a cyclone boundary portion, an outer wall portion, etc. may be considered, and other names are also possible.

[0242] The band member (430) may be mounted on the first filter (320) and may have a shape corresponding to the upper portion of the first filter (320). The upper edge of the first filter (320) may be formed in a circular shape, and the band member (430) may also be formed in a circular shape that surrounds the vortex finder (420). However, this does not exclude the possibility that the upper portion of the first filter (320) and the band member (430) may be formed in a polygonal shape.

[0243] The guide vane (not shown) is configured to guide air discharged from the first cyclone section (130) toward the inside of the cyclone body (410). The guide vane (not shown) can form a flow path through which air introduced through the inlet can flow toward the inside of the cyclone body (410). Therefore, air flowing along the flow path formed by the guide vane (not shown) can form a swirling flow between the vortex finder (420) and the cyclone body (410).

[0244] At least a portion of the guide vane (not shown) may be positioned between the cyclone body (410) and the vortex finder (420) and may be connected to each cyclone body (410) and each vortex finder (420). One end of the guide vane (not shown) may be connected to the outer surface of the vortex finder (420) along a spiral direction, and the other end of the guide vane (not shown) may be connected to the inner surface of the cyclone body (410) along a spiral direction.

[0245] Each cyclone body (410) and each vortex finder (420) may be provided with a plurality of guide vanes (not shown), and the guide vanes (not shown) may extend in a spiral direction to generate a swirling flow. As the guide vanes (not shown) extend in a spiral direction, air and dust introduced into the inlet of the cyclone body (410) may form a swirling flow.

[0246] Below, the flow of air flowing through the path of the vacuum cleaner (1) according to an embodiment of the present invention will be described.

[0247] First, when the suction motor (140) is operated, external air can be drawn into the dust bin (170) through the suction unit (120).

[0248] Air separated from dust by the first cyclone unit (130) inside the dust bin (170) can be introduced into the cyclone body (410) passing through the first filter (320). The air introduced into the cyclone body (410) can fall while forming a swirling flow and then flow upwards to pass through the vortex finder (420). The air passing through the vortex finder (420) can have dust filtered in the second filter (500). The air filtered from dust in the second filter (500) can flow toward the suction motor (140) positioned downstream of the suction airflow. The air passing through the suction motor (140) can be discharged to the outside through the main air outlet (110a). A portion of the air passing through the suction motor (140) can be discharged to the outside through the handle (150), battery (200), and bypass air outlet (226).

[0249]

[0250] Meanwhile, a cleaner (1) according to the first embodiment of the present invention may include a main body (100), a suction unit (120), a first filter (320), a second filter (500), and a cleaning unit (600).

[0251] The first filter (320) is at least partially disposed inside the dust bin (170) and can filter dust from air drawn in through the suction unit (120). The first filter (320) can be disposed to surround the second cyclone unit (400). For example, the first filter (320) can be a mesh filter. In addition, when the suction motor (140) is driven, the suction airflow can pass from the outside to the inside of the first filter (320).

[0252] The second filter (500) can filter dust from air passing through the first filter (320). For example, the second filter (500) may be a pre-filter. Furthermore, the second filter (500) may be formed in a shape similar to a cylinder with an open interior. Furthermore, when the suction motor (140) is driven, the suction airflow may pass from the outside to the inside of the second filter (500).

[0253] The first filter (320) and the second filter (500) may be arranged vertically along the central axis (a2) of the dustbin. In addition, the longitudinal axis of the first filter (320) and the longitudinal axis of the second filter (500) may form a coaxial line, and the longitudinal axes of the first filter (320) and the second filter (500) may be collectively referred to as the longitudinal axis (a5) of the filter.

[0254] At this time, the central axis of the dustbin (a2) and the longitudinal axis (a5) of the filter can form a coaxial line.

[0255] The first dust, which is dust filtered by the first filter (320), may accumulate on the first filter surface. The first filter surface may refer to the outer surface of the first filter (320). Specifically, the first filter surface may refer to the surface of the first filter (320) facing the inner surface of the dustbin body (171).

[0256] Second dust, which is dust filtered by the second filter (500), may accumulate on the second filter surface. The second filter surface may refer to the outer surface of the second filter (500). Specifically, the second filter surface may refer to the surface of the second filter (500) facing the inner surface of the filter housing (180).

[0257] The cleaning unit (600) can be movably arranged relative to the first filter (320) and the second filter (500).

[0258] The cleaning unit (600) can sweep away first dust and second dust from the first filter surface and the second filter surface, respectively.

[0259] The imaginary suction motor axis (a1) extending from the rotation axis of the suction motor (140) and the longitudinal axis of the dustbin (the central axis of the dustbin (a2)) can intersect each other. Accordingly, the suction motor axis (a1) and the longitudinal axis (a5) of the filter can also intersect each other.

[0260] The suction unit (120) and the suction motor (140) may be positioned on opposite sides of the dustbin's longitudinal axis (dustbin central axis (a2)). Due to this structure, the overall center of gravity of the vacuum cleaner is positioned as close as possible to the handle (150) held by the user, so that the user can move the vacuum cleaner (1) with minimal force.

[0261] The main body (100) may further include a filter housing (180).

[0262] A receiving space (180a) for receiving a second filter (500) may be formed inside the filter housing (180). In addition, a dust bin (170) may be detachably coupled to the filter housing (180).

[0263] The filter housing (180) and the dust bin (170) can be arranged vertically along the central axis (a2) of the dust bin or the longitudinal axis (a5) of the filter.

[0264] A filter entrance (180b) through which a second filter (500) can be inserted and removed may be formed on the upper side of the filter housing (180). Accordingly, a user can take the second filter (500) out through the filter entrance (180b).

[0265] The filter access port (180b) can be opened and closed through the filter access cover (190). The filter access cover (190) can be hingedly connected to the filter housing (180), and when the second filter (500) is to be taken out, the filter access port (180b) can be opened.

[0266] The cleaning unit (600) may include a first movable part (610), a second movable part (620), a connecting part (630), an operating housing (640), a guide member (650), an operating lever (660), and an elastic member (670).

[0267] The first movable part (610) can move along the space between the first filter surface and the inner surface of the dust bin (170) within the dust bin (170).

[0268] A first brush (611) composed of a plurality of bristles may be arranged on the inside of the first movable part (610). When the first movable part (610) moves along the central axis (a2) of the dust bin, the first brush (611) can sweep away dust accumulated on the first filter surface.

[0269] The second movable part (620) can move along the space between the second filter surface and the inner surface of the filter housing (180) within the filter housing (180).

[0270] A second brush (621) composed of a plurality of bristles may be arranged on the inside of the second movable part (620). When the second movable part (620) moves along the central axis (a2) of the dust bin, the second brush (621) can sweep away dust accumulated on the second filter surface.

[0271] The connecting portion (630) can connect the first movable portion (610) and the second movable portion (620).

[0272] Therefore, when the operation lever (660) is moved, the first movable part (610) and the second movable part (620) can be moved as one.

[0273] The connecting portion (630) can penetrate the filter housing (180). Specifically, a moving hole (not shown) through which the connecting portion (630) can move can be formed through the filter housing (180), and the connecting portion (630) can move in a direction parallel to the central axis (a2) of the dustbin through the moving hole (not shown).

[0274] Accordingly, a part of the connecting portion (630) may be placed in the space between the first filter surface and the dust bin (170), and the remaining part of the connecting portion (630) may be placed in the space between the second filter surface and the inner surface of the filter housing (180).

[0275] The connecting member (630) may include a first connecting member (631) and a second connecting member (632).

[0276] One side of the first connecting member (631) can be movably connected to the guide member (650), and the other side can be fixed to the first movable part (610).

[0277] Meanwhile, elastic members (670) may be placed on both sides of the first connecting member (631) combined with the guide member (650).

[0278] The elastic member (670) is arranged to surround the guide member (650) to be described later, and is configured to generate a restoring force in the opposite direction to the direction in which the operating lever (660) is moved when the user moves the operating lever (660).

[0279] The elastic member (670) may include a first elastic member (671) and a second elastic member (672).

[0280] A first elastic member (671) may be arranged on one side of the first connecting member (631), and a second elastic member (672) may be arranged on the other side. One side of the first elastic member (671) may be connected to the operating lever (660) and the guide member (650), and the other side may be connected to the first connecting member (631). One side of the second elastic member (672) may be connected to the first connecting member (631), and the other side may be connected to the guide member (650).

[0281] Additionally, one side of the second connecting member (632) may be fixed to the first movable part (610), and the other side may be fixed to the second movable part (620).

[0282] Accordingly, when the operating lever (660) is moved and the elastic member (670) is compressed, the first connecting member (631) can be moved along the guide member (650). In addition, the first movable part (610) connected to the first connecting member (631) and the second movable part (620) connected to the second connecting member (632) can also be moved.

[0283] The operating housing (640) can be coupled to the outside of the main body (100) and the dust bin (170). A guide member (650) can be accommodated inside the operating housing (640).

[0284] The internal space of the operating housing (640) may be communicated with the internal space of the dust bin (170). A moving slit (not shown) corresponding to the longitudinal direction of the operating housing (640) may be formed in the dust bin (170), and the connecting portion (630) may be connected to the guide member (650) while passing through the moving slit (not shown).

[0285] The guide member (650) can extend in the direction of movement of the first movable part (610) and the second movable part (620) inside the operating housing (640).

[0286] The operating lever (660) slides along the guide member (650) and may be exposed to the outside at least partially so that the user can grasp it.

[0287] The filter inlet (180b) can be opened toward the direction in which the elastic member (670) is elastically restored.

[0288] When the direction in which the elastic member (670) is compressed is referred to as the first direction, and the direction in which the elastic member (670) is elastically restored is referred to as the second direction, when the user moves the operating lever (660) in the first direction and then releases the operating lever (660), the second brush (621) can move the second filter (500) toward the filter entrance / exit (180b) while moving in the second direction. Accordingly, in a state in which the filter entrance / exit (180b) is open, at least a portion of the second filter (500) moved by the second brush (621) can be exposed to the outside through the filter entrance / exit (180b).

[0289] Meanwhile, referring to FIG. 6, in the cleaner (1) according to the first embodiment of the present invention, four quadrants can be defined by a horizontal center line (HL1) and a vertical center line (VL1).

[0290] When looking at the discharge cover (172) from the filter access cover (190), the horizontal center line (HL1) horizontally crosses the center of the dustbin body (171) and can penetrate the outer surface of the dustbin body (171). In this case, the horizontal direction may mean a direction that vertically intersects the longitudinal axis of the suction unit (120).

[0291] The vertical center line (VL1) intersects the horizontal center line (HL1) vertically, crosses the center of the dustbin body (171), and can extend parallel to the length direction of the suction unit (120).

[0292] The connecting portion (630) and the guide member (650) can be placed in the same quadrant among the four quadrants defined by the horizontal center line (HL1) and the vertical center line (VL1).

[0293] Due to this structure, the connecting portion (630) and the guide member (650) can be positioned as close as possible, so that the distance between the operating lever (660) and the cleaning unit (600) can be minimized when the user holds the operating lever (660). Accordingly, when the user wants to move the cleaning unit (600) to clean the dust accumulated in the first filter (320) and / or the second filter (500), the user can move the operating lever (660) with minimal force.

[0294]

[0295] Second Example

[0296]

[0297] Meanwhile, a vacuum cleaner (2) according to a second embodiment of the present invention will be described with reference to FIGS. 18 to 20 as follows. The vacuum cleaner (2) may include a main body (100) and a battery (1200).

[0298] The main body (100) may include a main body housing (1110), a suction unit (120), a first cyclone unit (130), a suction motor (140), a handle (150), a battery coupling unit (160), a dust bin (170), and a handle connection unit (1180).

[0299] The battery (1200) may include an upper housing (1210), a lower housing (1220), a button portion (230), a printed circuit board (1181), a cell holder (250), and a battery cell (260).

[0300] Meanwhile, in order to avoid redundant description, except for what is specifically mentioned in the second embodiment of the present invention, other configurations may be cited from the contents of the cleaner according to the first embodiment of the present invention.

[0301]

[0302] The main body (100) may include a main body housing (1110).

[0303] A main air outlet (1110a) for discharging air discharged from the suction motor (140) may be formed in the main body housing (1110).

[0304] Meanwhile, the main body housing (1110) according to the second embodiment of the present invention may further include a battery circulation outlet (1110b) through which air circulating inside the battery (1200) is discharged to the outside. The battery circulation outlet (1110b) may be positioned closer to the front of the cleaner (2) than the main air outlet (1110a). For example, the battery circulation outlet (1110b) may be formed in a slit shape.

[0305]

[0306] The body (100) may include a handle (150).

[0307] The handle (150) may include a grip portion formed in a pillar shape so that a user can grip it, a first extension portion connected to one longitudinal (axial) end of the grip portion and extending toward the suction motor (140), and a second extension portion connected to the other longitudinal (axial) end of the grip portion and extending toward the dust bin (170).

[0308] The first extension may extend from the gripper toward the main body housing (110) or the suction motor (140). At least a portion of the first extension may extend horizontally. The second extension may extend from the gripper toward the dust bin (170). At least a portion of the second extension may extend horizontally.

[0309] The main body (100) may further include a handle connection portion (1180). The handle connection portion (1180) may be coupled to the outside of the dustbin (170) and may have an upper portion communicated with the main body housing (1110). The handle connection portion (1180) may be positioned between a portion where the first extension portion extends horizontally and a portion where the second extension portion extends horizontally. More specifically, the upper portion of the handle connection portion (1180) may be connected to a portion where the first extension portion extends horizontally, and the lower portion of the handle connection portion (1180) may be connected to a portion where the second extension portion extends horizontally.

[0310] The lower part of the handle connection part (1180) may be connected to the inside of the battery (1200). The handle connection part (1180) may be connected to the inside of the battery (1200) through the front air outlet (1216) formed on the front of the battery (1200). More specifically, the lower part of the handle connection part (1180) is connected to the battery connection part (160). When the battery (1200) is connected to the battery connection part (160), air discharged through the front air outlet (1216) may pass through the battery connection part (160) and move to the handle connection part (1180).

[0311] A path through which air discharged from the battery (1200) passes may be formed inside the handle connection portion (1180). The air discharged from the battery (1200) may pass through the handle connection portion (1180) and move to the main body housing (1110). The air that has moved to the main body housing (1110) may be discharged to the outside through the battery circulation outlet (1110b).

[0312] The handle connection part (1180) can accommodate a printed circuit board (1181) therein. The substrate body (1181a) of the printed circuit board (1181) can be formed to extend along the length direction of the dustbin (170). The printed circuit board (1181) can be attached to the inner wall of the handle connection part (1180) on the dustbin (170) side. Air discharged from the battery (1200) can flow along the surface of the printed circuit board (1181). Accordingly, there is an effect of cooling the heat generated in the printed circuit board (1181).

[0313]

[0314] The vacuum cleaner (2) according to the second embodiment of the present invention may include a battery (1200).

[0315] The battery (1200) may include an upper housing (1210), a lower housing (1220), a button portion (230), a cell holder (250), and a battery cell (260).

[0316] The upper housing (1210) may include an upper cover portion (211), a side cover portion (222), a front cover portion (1213), a rear cover portion (224), a button receiving portion (225), and a ventilation hole (216).

[0317] The upper housing (1210) may further include a front air outlet (1216). The front cover portion (1213) of the upper housing (1210) may further include a front air outlet (1216) through which air introduced through the ventilation hole (216) is discharged.

[0318] Air discharged from the front air outlet (1216) can flow to the battery coupling portion (160). The air that has flowed to the battery coupling portion (160) can flow to the main body housing (1110) through the handle connection portion (1180). The air that has flowed to the main body housing (1110) can be discharged to the outside through the battery circulation outlet (1110b).

[0319] The front cover (1213) may further include a battery terminal receiving portion (1213a) that protrudes forward. For example, the battery terminal receiving portion (1213a) may have a rectangular parallelepiped shape. A plurality of holes for inserting main body terminals (not shown) may be formed on the front surface of the battery terminal receiving portion (1213a), and a front air exhaust port (1216) may be formed on the lower surface of the battery terminal receiving portion (1213a).

[0320] Meanwhile, the lower housing (220) may include a lower cover portion (221), a side cover portion (222), a front cover portion (223), a rear cover portion (224), and a button receiving portion (225).

[0321] As another example according to the present invention, a front air outlet (not shown) may be formed in the lower housing (220). More specifically, the front cover portion (223) of the lower housing (220) may further include a front air outlet (not shown). Air discharged from the front air outlet (not shown) may flow through the handle connection portion (1180) into the main body housing (1110). The air that has flowed into the main body housing (1110) may be discharged to the outside through the battery circulation outlet (1110b).

[0322]

[0323] In summary, the battery (1200) of the vacuum cleaner (2) according to the second embodiment of the present invention may include a ventilation hole (216) formed on the upper surface and a front air exhaust hole (1216) formed on the front cover part (1213). Due to this configuration, when the battery (1200) is coupled to the battery coupling part (160), only the rear and lower surfaces of the battery (1200) are exposed to the outside. That is, when the battery (1200) is coupled to the battery coupling part (160), the ventilation hole (216) and the front air exhaust hole (1216) may not be exposed to the outside. Accordingly, there is an effect of preventing dust or foreign substances from entering the interior of the battery (1200).

[0324] Meanwhile, the bypass air outlet (226) disclosed in the first embodiment is not disclosed in the second embodiment, and the front air outlet (1216) according to the second embodiment can perform the same function.

[0325]

[0326] Hereinafter, the flow of air flowing through the suction motor (140), handle (150), battery (1200), and handle connection part (1180) according to the second embodiment of the present invention will be described in detail.

[0327] Most of the air discharged from the suction motor (140) can be discharged to the outside through the main air outlet (1110a). Meanwhile, at least a portion of the discharged air can flow to the handle (150). The air that has flowed to the handle (150) can flow into the battery (1200) through the ventilation hole (216). The air that has flowed into the battery (1200) can flow to the handle connection part (1180) through the front air outlet (1216). The air that has flowed to the handle connection part (1180) can flow back into the inside of the main body housing (1110). For example, the air that has flowed to the main body housing (1110) can be discharged to the outside through the battery circulation outlet (1110b). As another example, some of the air flowing into the main body housing (1110) may be discharged to the outside through the battery circulation outlet (1110b), and the remaining air may be introduced back into the suction motor (140).

[0328] With this configuration, air discharged from the suction motor (140) can be introduced into the battery (1200) to circulate the air inside the battery (1200). This can lower the temperature of the battery cell (260). This has the effect of increasing the efficiency of the battery (1200) and preventing performance degradation of the battery cell (260) due to overheating.

[0329] Additionally, the air circulating inside the battery (1200) flows to the handle connection part (1180) and can lower the temperature of the printed circuit board (1181) accommodated inside the handle connection part (1180).

[0330]

[0331] Third Example

[0332]

[0333] Meanwhile, referring to Fig. 21, a cleaner (3) according to a third embodiment of the present invention will be described as follows. The cleaner (3) may include a main body (100) and a battery (2200).

[0334] The main body (100) may include a main body housing (2110), a suction unit (120), a first cyclone unit (130), a suction motor (140), a handle (2150), a battery coupling unit (160), and a dust bin (170).

[0335] The battery (2200) may include an upper housing (210), a lower housing (220), a button portion (230), a printed circuit board (240), a cell holder (250), and a battery cell (260).

[0336] Meanwhile, in order to avoid redundant description, except for what is specifically mentioned in the third embodiment of the present invention, other configurations may be cited from the contents of the cleaner according to the first embodiment of the present invention.

[0337]

[0338] The main body (100) may include a main body housing (2110). A main air outlet (2110a) for discharging air discharged from the suction motor (140) may be formed in the main body housing (2110).

[0339] Meanwhile, the main body housing (2110) according to the third embodiment of the present invention may further include a battery circulation outlet (2110b) through which air circulating inside the battery (2200) is discharged to the outside. The battery circulation outlet (2110b) may be positioned closer to the front of the cleaner (3) than the main air outlet (2110a). For example, the battery circulation outlet (2110b) may be formed in a slit shape.

[0340]

[0341] The main body (100) may include a suction motor (140).

[0342] The suction motor (140) may have a cylindrical shape. The present invention may include a virtual suction motor axis (a1) extending the rotation axis of the suction motor (140). The suction motor axis (a1) may be in a direction parallel to the ground. That is, one longitudinal (axial) side of the suction motor (140) may be located at the front, and the other longitudinal (axial) side of the suction motor (140) may be located at the rear. Hereinafter, in the present specification, one longitudinal side may mean the front of the cleaner (3), and the other longitudinal side may mean the rear of the cleaner (3).

[0343] The main body housing (2110) may further include a first motor housing (2111) and a second motor housing (2112) that house a suction motor (140) therein.

[0344] The second motor housing (2112) may be arranged closer to the second cyclone unit (400) than the first motor housing (2111). That is, the second motor housing (2112) may be arranged forward of the first motor housing (2111). In addition, the impeller of the suction motor (140) may be accommodated inside the first motor housing (2111). The second motor housing (2112) and the first motor housing (2111) may be connected along the longitudinal direction. The internal spaces of the first and second motor housings (2111, 2112) may be partitioned by a dividing wall.

[0345] The second motor housing (2112) may be configured to be in communication with the second cyclone unit (400). Air passing through the second cyclone unit (400) may flow into the interior of the second motor housing (2112). The air thus flowing may be introduced into the suction motor (140) through the second motor housing (2112). Meanwhile, the second motor housing (2112) may be in communication with the outside through the battery circulation outlet (2110b).

[0346] Air drawn into the suction motor (140) can flow inside the first motor housing (2111). The first motor housing (2111) can be communicated with the outside through the main air outlet (2110a). In addition, the first motor housing (2111) can be communicated with the inside of the handle (2150). Therefore, most of the air discharged from the suction motor (140) can be discharged to the outside through the main air outlet (2110a), and at least a portion of the air discharged from the suction motor (140) can flow to the handle (2150).

[0347]

[0348] Meanwhile, the handle (2150) of the cleaner (3) according to the third embodiment of the present invention may further include a handle euro partition (2150a).

[0349] The handle flow partition (2150a) may be formed inside the handle (2150). The handle flow partition (2150a) may be formed along the longitudinal direction of the handle (2150). The internal space of the handle (2150) may be partitioned into a first handle space (2151) and a second handle space (2152) by the handle flow partition (2150a). The first handle space (2151) and the second handle space (2152) may be arranged in parallel in the longitudinal direction. That is, the first handle space (2151) may be positioned forward and the second handle space (2152) may be positioned rearward with respect to the handle flow partition (2150a).

[0350] Meanwhile, a handle (2150) may be positioned at the bottom of the suction motor (140). A battery (2200) may be positioned at the bottom of the handle (2150).

[0351] The first handle space (2151) may be communicated with the first motor housing (2111), and the second handle space (2152) may be communicated with the second motor housing (2112).

[0352] That is, the upper part of the first handle space (2151) can be communicated with the first motor housing (2111). And, the lower part of the first handle space (2151) can be communicated with the internal space of the battery (2200) through the ventilation hole (216). Accordingly, at least a portion of the air discharged from the suction motor (140) can flow through the first motor housing (2111) into the first handle space (2151). The air that has flowed into the first handle space (2151) can flow into the inside of the battery (2200) through the ventilation hole (216).

[0353] Meanwhile, the upper part of the second handle space (2152) may be communicated with the second motor housing (2112). The lower part of the second handle space (2152) may be communicated with the internal space of the battery (2200) through the ventilation hole (216). Accordingly, air inside the battery (2200) may flow into the second handle space (2152) through the ventilation hole (216). The air that has flowed into the second handle space (2152) may flow into the second motor housing (2112). For example, the air that has flowed into the second motor housing (2112) may be discharged to the outside through the battery circulation outlet (2110b). As another example, a portion of the air that has flowed into the second motor housing (2112) may be discharged to the outside through the battery circulation outlet (2110b), and the remaining air may be introduced back into the suction motor (140).

[0354] A cooling path (150a) through which at least a portion of the air discharged from the suction motor (140) flows may be formed inside the handle (2150).

[0355] The cooling path (150a) may include a first cooling path (150a) through which air discharged from the suction motor (140) flows into the battery (2200) and a second cooling path (150a) through which air circulated inside the battery (2200) flows back toward the suction motor (140). That is, the cooling path (150a) may include a first cooling path (150a) through which air flows downward and a second cooling path (150a) through which air flows upward.

[0356]

[0357] The vacuum cleaner (3) may include a battery (2200). The battery (2200) may include an upper housing (210). The upper housing (210) may include an upper cover portion (211), a side cover portion (222), a front cover portion (223), a rear cover portion (224), a button receiving portion (225), and a ventilation hole (216).

[0358] The battery (2200) can be communicated with the internal space of the handle (2150) through a ventilation hole (216) disposed on the upper surface. The battery (2200) can be communicated with the first and second handle spaces (2151, 2152) through the ventilation hole (216). More specifically, the ventilation hole (216) can be communicated with the first handle space (2151) on one side based on the handle passage partition (2150a), and can be communicated with the second handle space (2152) on the other side.

[0359] The air inside the battery (2200) can be discharged to the second handle space (2152). That is, a second cooling path (150a) through which air flows upward can be formed inside the second handle space (2152).

[0360] Meanwhile, the bypass air outlet (226) disclosed in the first embodiment is not disclosed in the third embodiment.

[0361] With this configuration, the battery (2200) according to the third embodiment of the present invention may not communicate with the outside while being coupled to the main body (100). Accordingly, foreign substances can be prevented from entering the battery (2200).

[0362]

[0363] Hereinafter, the flow of air flowing through the suction motor (140), the first and second motor housings (2111, 2112), the handle (2150), and the battery (2200) according to the third embodiment of the present invention will be described in detail.

[0364] The air passing through the second cyclone unit (400) flows into the first motor housing (2111) through the second motor housing (2112). The air discharged from the suction motor (140) may flow inside the first motor housing (2111). Most of the discharged air may be discharged to the outside through the main air outlet (2110a). Meanwhile, at least a portion of the discharged air may flow from the first motor housing (2111) into the first handle space (2151). The air that has flowed into the first handle space (2151) may flow into the ventilation hole (216) along the first cooling channel (150a). The air may flow into the battery (2200) through the ventilation hole (216).

[0365] Additionally, the air circulating inside the battery (2200) can flow back into the second handle space (2152) through the ventilation hole (216). The air flowing into the second handle space (2152) can flow along the second cooling channel (150a) to the second motor housing (2112). The air can be re-introduced into the suction motor (140) or discharged to the outside through the battery circulation outlet (2110b).

[0366] That is, the handle euro partition (2150a) separates the first cooling passage (150a) and the second cooling passage (150a), thereby forming a circulation passage through which air can circulate back and forth inside the handle (2150).

[0367] With this configuration, air discharged from the suction motor (140) can be introduced into the battery (2200) to circulate the air inside the battery (2200). This can lower the temperature of the battery cell (260). This has the effect of increasing the efficiency of the battery (2200) and preventing performance degradation of the battery cell (260) due to overheating.

[0368]

[0369] 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.

[0370] 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 main body housing in which a suction motor that generates suction airflow is housed; A battery including a battery cell that supplies power to the above suction motor; and A handle disposed between the suction motor and the battery and capable of being gripped; Including, Inside the above handle, A cooling path is formed through which at least a portion of the air discharged from the above suction motor flows, The above battery, A vacuum cleaner characterized in that a ventilation hole communicating with the cooling duct is formed.

2. In paragraph 1, The above handle is, A vacuum cleaner characterized in that one longitudinal end is connected to the main body housing and the other longitudinal end is connected to the inside of the battery.

3. In paragraph 1, The above battery, an upper housing having the above ventilation holes formed therein; and A lower housing coupled with the upper housing to form a space for accommodating a battery cell therein; Including, The above lower housing, A vacuum cleaner characterized in that a bypass air outlet is formed on the lower surface through which air introduced through the ventilation hole is discharged.

4. In paragraph 1, The above main body housing, A main air outlet for discharging air discharged from the above suction motor; Including, The above battery, A vacuum cleaner characterized in that a bypass air outlet communicating with the above cooling duct is formed.

5. In paragraph 1, A dustbin where dust is stored; A handle connection part coupled to the outside of the above dustbin and having an upper part communicating with the main body housing; and A printed circuit board controlling the above battery cell; Including more, The above printed circuit board, A vacuum cleaner characterized in that it is accommodated inside the above handle connection part.

6. In paragraph 1, Inside the above handle, A vacuum cleaner characterized in that a handle euro partition is formed along the longitudinal direction.

7. Upper housing; and A lower housing coupled with the upper housing to form a space for accommodating a battery cell therein; Including, The above upper housing, A vent through which air exhausted from the vacuum cleaner's suction motor is drawn in; Battery for vacuum cleaner including.

8. In paragraph 7, The above lower housing, Bypass air outlet communicating with the outside; Battery for vacuum cleaner including.

9. In paragraph 8, A printed circuit board that is accommodated in a space formed by combining the upper housing and the lower housing and controls the battery cell; Including more, The above printed circuit board, A heat dissipation hole through which air drawn in through the above ventilation hole passes; A battery for a vacuum cleaner, characterized by further including:

10. In paragraph 9, A cell holder surrounding the above battery cell; Including, A battery for a vacuum cleaner, characterized in that the width of the printed circuit board is narrower than the width of the cell holder.

11. In paragraph 7, The upper housing or the lower housing, A front air outlet for discharging air drawn in from the above vent; Including, A battery for a vacuum cleaner, characterized in that air discharged from the front air outlet flows to the suction motor.

12. In paragraph 7, A cell holder surrounding the above battery cell; Including, The above cell holder, A first cell holder that wraps one longitudinal end of the battery cell; and A second cell holder coupled to the first cell holder and surrounding the longitudinal end of the battery cell; Battery for vacuum cleaner including.

13. In paragraph 12, The above cell holder, a cell receiving portion enclosing at least a portion of the battery cell; and A cell holder connecting portion protruding from the cell receiving portion and connecting the first cell holder and the second cell holder; A battery for a vacuum cleaner that includes more.

14. A main body including a main body housing having a suction motor that generates suction airflow housed therein and a handle disposed below the suction motor and capable of being gripped; A battery including a printed circuit board having a ventilation hole formed on the upper surface through which air discharged from the suction motor is introduced, a bypass air exhaust hole formed on the lower surface through which air is connected to the outside, and a heat dissipation hole formed through which air introduced through the ventilation hole passes; and An imaginary handle penetration line formed along the length of the handle and penetrating the handle; Including, A vacuum cleaner characterized in that the handle penetration line passes through the suction motor, the ventilation hole, the heat dissipation hole, and the bypass air exhaust port.

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