CN216135762U - Hand-held vacuum cleaner - Google Patents

Abstract

A hand-held vacuum cleaner comprising: a main housing; a handle; the fan assembly is arranged in the main shell; the dust cup is detachably connected with the main shell, and the dust cup, the main shell and the handle are sequentially arranged in a straight line shape; the filter assembly comprises a first filter unit and a second filter unit, the first filter unit is positioned at the upstream of the fan assembly, and the second filter unit is positioned at the downstream of the fan assembly; the filter assembly is at least partially nested as a unit for installation on the fan assembly and removal from the fan assembly in a direction away from the handle. The application provides a handheld dust collector, the integrative dismantlement of second filter unit and first filter unit, operating procedure is simple, and it is convenient to dismantle, and convenient while is cleaned business turn over wind filter, and dismantles the direction and deviates from the handle, is difficult for causing secondary pollution.

Description

Hand-held vacuum cleaner

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of dust collection equipment, in particular to a handheld dust collector.

[ background of the utility model ]

The handheld vacuum cleaner, referred to as a handheld cleaner for short, is light in weight, adopts a battery for power supply, is not bound by a power cord when in use, is particularly convenient for cleaning large areas and spot cleaning tasks, and is widely popular with users.

Handheld dust catcher, usually including cyclone, the fan subassembly, the dirt cup, filtering component etc, though foul and dust in the air current that two-stage cyclone can effectual separation get into, still need set up the air inlet filter pulp in cyclone's low reaches and fan subassembly's upper reaches, reduce the dust and get into fan subassembly and cause the risk of pollution, and, set up high-efficient air-out filtering component in fan subassembly's low reaches, further filter dust and dirty in the air current before the air current is discharged to the environment, make the air current of discharge environment satisfy the cleanliness factor requirement, avoid causing environmental pollution, improve user experience.

It is understood that the filter assembly is inevitably attached with a large amount of dust after long-term use, and the filtering effect thereof is deteriorated. Therefore, the filter assembly is typically provided in a removable manner, which facilitates removal, cleaning, or replacement by the user when the filter assembly needs to be cleaned. The filter assembly of the existing handheld dust collector is usually detached from the tail end direction of the handle, and dust on the filter assembly easily falls on the handle or a detached table top or the surface of a machine body during detachment, so that secondary pollution is formed, and troubles are brought to a user.

Some handheld dust collectors intake filter pulp and air-out filter assembly dismantle respectively, need separately wash, comparatively loaded down with trivial details. Due to the complicated disassembling steps, dust is easily scattered on the machine, and secondary pollution is caused.

The air inlet filter pulp and the air outlet filter assembly of the handheld dust collector are integrated and can be detached together, but the air outlet filter assembly is accommodated in the transparent cover, and only the whole component can be washed during cleaning.

[ Utility model ] content

The utility model aims to provide a portable handheld dust collector, wherein a filter (a first filter unit) in front of a motor and a filter (a second filter unit) behind the motor can be detached at the same time, comprehensive cleaning can be realized, and dead cleaning angles are avoided.

The purpose of the utility model is realized by the following technical scheme:

a hand-held vacuum cleaner comprising:

a main housing;

a handle connected to or integrally formed with the main housing, the handle having a gripping area for a user to grip;

the fan assembly is arranged in the main shell and used for driving airflow to generate negative pressure;

the dust cup is detachably connected to the main shell, and the dust cup, the main shell and the handle are sequentially arranged in a straight line shape;

the filter assembly comprises a first filter unit and a second filter unit for filtering the airflow, wherein the first filter unit is positioned at the upstream of the fan assembly in the airflow flowing direction, and the second filter unit is positioned at the downstream of the fan assembly;

the filter assembly is at least partially sleeved on the fan assembly as a whole, and the filter assembly is detached from the fan assembly as a whole along a direction deviating from the handle.

In one embodiment, after the filter assembly is disassembled, at least partial surfaces of the first filter unit and the second filter unit are exposed.

In one embodiment, at least a portion of the outer side surface of the second filter element forms the outer side surface of the filter assembly.

In one embodiment, an inside surface of at least a portion of the second filter element forms an inside surface of the filter assembly.

In one embodiment, more than 80% of the outside surface of the second filter element forms the outside surface of the filter assembly.

In one embodiment, a surface of the first filter unit facing away from the fan assembly forms an end face of the filter assembly.

In one embodiment, the filter assembly includes a lower cover connected to one end of the second filter unit, and an upper cover connected to the other end of the second filter unit, and sealing structures are disposed between the lower cover and the second filter unit and between the upper cover and the first filter unit.

In one embodiment, the filter assembly is removable and attachable along an axial direction of the fan assembly.

In one embodiment, the dust cup further comprises a cyclone separator at least partially located within the dust cup, the cyclone separator being removable and installable with the dust cup from the main housing.

In one embodiment, the second filter unit is in a sleeve shape, the first filter unit is connected to one end of the second filter unit in a covering manner, and the other end, opposite to the second filter unit, of the second filter unit is arranged in an open manner.

Compared with the prior art, the utility model has the following beneficial effects:

the application provides a handheld dust catcher, first filter unit and second filter unit are dismantled and are installed from the fan subassembly periphery as a whole, and operating procedure is simple, and dismantles the direction and deviate from the handle, and at the dismantlement in-process, the dust on the filter unit is difficult for dropping on the handle or the fuselage of handheld dust catcher, avoids secondary pollution.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

fig. 1 is a schematic structural diagram of a handheld vacuum cleaner provided by the present application.

Fig. 2 is a partially exploded view of the hand-held cleaner shown in fig. 1.

Fig. 3 is a sectional view of the hand-held cleaner shown in fig. 1, partially disassembled.

Fig. 4 is a structural view illustrating a disassembled state of a filter assembly of the hand-held cleaner of the embodiment shown in fig. 1.

Fig. 5 is a sectional view schematically illustrating a disassembled state of the hand-held cleaner according to an embodiment of the present disclosure.

Fig. 6 is a sectional view schematically illustrating a hand-held cleaner according to another embodiment of the present disclosure in a disassembled state.

[ detailed description ] embodiments

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to 4, a handheld vacuum cleaner according to an embodiment of the present application includes a main housing 10, a handle 12, an air inlet duct 16, a dust-air separating assembly, a fan assembly 20, and a battery pack 60.

The fan assembly 20 is used to drive the airflow to create the negative pressure. The fan assembly 20 is disposed in the main housing 10 and includes a motor 21 and an impeller 22 drivingly connected to the motor 21, when the fan assembly 20 is operated, the motor 21 drives the impeller 22 to rotate to generate a negative pressure, and under the action of the negative pressure, the airflow enters the cyclone separator from the air inlet duct 16.

The battery pack 60 is used to power the fan assembly 20. The battery pack 60 includes a plurality of battery cells, and in order to reduce the weight of the handheld vacuum cleaner, the battery cells used in this embodiment are all lithium ion battery cells.

Wherein the dirt-gas separation assembly includes a dirt cup 14 and a cyclone separator (not shown) disposed within the dirt cup. The air inlet duct 16 has an air inlet 160 at one end and communicates with the cyclone separator and dirt cup 14 at the other end. The cyclonic separator serves to separate dirt and gas from the airflow and separated dirt and dust is temporarily stored in the dirt cup 14. When the hand-held cleaner is in an operating state, the fan assembly 20 operates to form a suction airflow under the action of negative pressure, the suction airflow enters the dust cup 14 of the hand-held cleaner through the airflow inlet 160, and after separation in the cyclone separator, large-particle dirt and dust are stored in the dust cup 14, and the separated airflow flows to one side of the fan assembly 20.

With continued reference to fig. 1 and fig. 2, the main housing 10 is provided with an air outlet 100 for allowing air to flow out. The air outlet 100 is located at a side of the fan assembly 20. Specifically, on the side of the motor 21. Referring to the handheld vacuum cleaner shown in fig. 2, the outlet 100 is formed at the left and right sides of the main housing 10 and is disposed opposite to each other. In a normal holding state, one side of the handheld dust collector shown in fig. 2 faces downward, the air discharged from the air outlet 100 blows out to the left and right sides of the body of the user, and the user cannot feel the blown air flow, so that the use experience is good.

The handle 12 takes the form of an elongate handgrip arranged so that a user grips the handle 12 to operate the hand-held cleaner, with a gripping region for gripping by the user. The handle 12 has a centerline along which the handle 12 extends, the centerline being defined by the shape of the handle 12 and may be straight or have a curvature. The handle 12 is connected to the main housing 10, and may be fixed or movable, such as rotatable or detachable. Of course, the handle 12 and the main housing 10 may be integrally formed. In this embodiment, referring to fig. 1, the handle 12 is a straight handle, and the center line of the handle 12 is a straight line and is fixedly connected to the rear of the main housing 10, that is, the handle 12 is positioned at the rear of the handheld cleaner, so that the main housing 10, the air inlet duct 16 and the fan assembly 20 can be supported in front of a user, thereby facilitating the operation of the handheld cleaner.

The hand-held cleaner also has a switch 13, which is configured here as an on and off switch, the switch 13 being disposed adjacent the handle 12, facilitating a user to operate the switch to turn the hand-held cleaner on or off while gripping the handle 12.

Referring to fig. 1, the handle 12, the main housing 10 and the dirt cup 14 are arranged in a straight line, so that the handheld vacuum cleaner is slim and portable. Because the handle 12 is a linear handle, i.e. the central line of the handle 12 is a straight line, the handle 12 is further arranged parallel to the axis of the fan assembly 20, so that the volume of the handheld dust collector is more compact.

To prevent dust from entering the air blower assembly 20, the motor 21 is contaminated, and the environment is prevented from being contaminated by air discharged to the outside. In this embodiment, referring to fig. 2 and 3, the hand-held cleaner further comprises a filter assembly 50 including a first filter unit 51 and a second filter unit 52 for filtering the airflow. The first filtering unit 51 is located at the downstream of the cyclone separator in the airflow flowing direction, and at the upstream of the fan assembly 20, the airflow separated by the cyclone separator is filtered by the filtering effect of the first filtering unit 51, so that most of dust in the airflow is filtered, the dust amount entering the fan assembly 20 can be reduced, and the pollution to the fan assembly 20 is reduced. Specifically, the first filter unit 51 is configured in a sheet shape, and preferably, the first filter unit 51 is a filter sponge.

In one embodiment, the second filter unit 52 is in the shape of a sleeve, the first filter unit 51 is in the shape of a sheet matching the shape of the end of the sleeve, and the first filter unit 51 covers one end of the second filter unit 52. The filter assembly 50 is generally cup-shaped in overall view, the first filter element 51 forming the bottom of the cup-shaped filter assembly 50 and the second filter element 52 forming the side wall of the cup-shaped filter assembly 50. The fan assembly 20 further comprises a motor cover 23 covering the periphery of the motor 21, the motor cover 23 is spaced from the inner wall of the main housing 10 to form an installation space for installing the filter assembly 50, the filter assembly 50 covers the fan assembly 20 when the filter assembly 50 is not detached from the fan assembly 20, the second filter unit 52 is sleeved on the periphery of the fan assembly 20 and is substantially accommodated in the installation space, the first filter unit 51 is located at the end of the fan assembly 20, and the filter assembly 50 is circumferentially wrapped at one end and the side wall of the fan assembly 20 to form a filter barrier.

Specifically, the second filtering unit 52 is a High Efficiency Air Filter, which is called High Efficiency Particulate Air Filter (HEPA) for short. The high-efficiency air filter is mainly used for trapping particle dust and various suspended matters with the particle size of more than 0.5 mu m, has high filtering efficiency and low flow resistance, and can be continuously used for a long time so as to reduce the cost of later-stage consumables.

However, as the amount of the adhered dust of the filter assembly 50 increases with the lapse of time, the flow resistance increases, the filtering effect decreases, and the first filter unit 51 and the second filter unit 52 may be detached and cleaned to maintain the filtering effect. In this embodiment, the first filter unit 51 and the second filter unit 52 are detachably disposed, so that they can be detached for cleaning. Specifically, referring to fig. 2 and 3, the second filter unit 52 is cylindrical, two ends of the second filter unit are through, the first filter unit 51 covers and is connected to one end of the second filter unit 52, and the opposite end of the second filter unit 52 is open. Thus, the filter assembly 50 has an overall cylindrical shape, one end of which is open and the other end of which is closed by the first filter unit 51. The filter assembly 50 as a whole is fitted over the periphery of the fan assembly 20 through the opening, and the filter assembly 50 as a whole is detached from the periphery of the fan assembly 20. In this way, the first filter unit 51 and the second filter unit 52 can be detached and installed together, and the operation is simple.

It can be understood that if the detaching action is complicated or the detaching path is not reasonable, the dust on the filter assembly 50 is easy to fall on the handheld dust collector during the detaching process, which causes secondary pollution and causes trouble to the user because the user needs to clean again. In one embodiment, referring to FIG. 4, to reduce the risk of contamination of other items by the removal of the filter assembly 50, the removal direction of the filter assembly 50 is set to be away from the handle 12. The arrow in fig. 4 shows the installation direction of the filter assembly 50, the direction opposite to this is the removal direction, and the removal path and the installation path of the second filter unit 52 are the same.

In a specific embodiment, the second filter unit 52 is detachably connected to the motor cover 23, and the second filter unit 52 at least partially covers the motor cover 23. Specifically, the motor cover 23 includes an inner cover surrounding the motor 22 and an outer cover spaced apart from the inner cover, and the second filter unit 52 is nested between the inner cover and the outer cover of the motor cover 23. That is, the motor cover 23 may also have a cover portion partially surrounding the second filter unit 52 to facilitate the installation of the second filter unit 52. The outlet 100 is opened at a wall defining an installation space. After being filtered by the second filter unit 52, the air flows out of the air outlet 100. In another embodiment, the filter assembly 50 is removably attached to the inner wall of the main housing 10.

In this embodiment, the dust-gas separation assembly is detachably disposed. Referring to fig. 3, the dust and air separating assembly is detachably attached to the main housing 10, and the dust and air separating assembly is detached in a direction away from the handle 12. In the case where the dust and air separating assembly is detached from the main housing 10, an end of the installation space, which originally faces the dust and air separating assembly, is exposed, and an end of the filter assembly 50 is exposed, the user can manipulate the filter assembly 50 to detach it therefrom. In a specific embodiment, a rotary handle is arranged at the exposed end of the filter assembly 50, and a user can take out the filter assembly 50 by rotating the handle, so that the user can detach the filter assembly 50 from the trash can, and the dust cup or the trash can is not polluted secondarily even if dust falls off, and the detachment is convenient. In the scene of usually dismantling, gripping handle 12 makes main casing body 10 be located the below of handle 12, aims at the garbage bin with the exposed end of installation space, pulls out filter assembly 50 downwards, and filter assembly 50 is lifted off along decurrent route, and the dust of shaking off directly drops in the garbage bin, dismantles the route and does not pass through parts such as main casing body, handle, therefore the dust is difficult for spilling on handheld dust catcher, does not need the secondary to clean, improves user experience.

In one embodiment, the filter assembly 50 is removed and installed in a direction parallel to the axial direction of the fan assembly 20. In this embodiment, the handle 12 is a straight handle having a straight centerline that is parallel or collinear with the axis of the fan assembly 20. That is, the detaching direction of the filter assembly 50 is parallel or collinear with the axial direction of the handle 12, in this embodiment, the detaching direction of the filter assembly 50 is collinear with the axial direction of the handle 12, so that the user can conveniently hold the handle with one hand, and operate the filter assembly 50 with the other hand to apply force along the direction opposite to the hand holding the handle 12 to detach the filter assembly 50, thereby saving labor and simplifying the steps.

To simplify disassembly of the filter assembly 50. In one embodiment, the cyclonic separator is configured to be removed and installed from the main housing 10 along with the dirt cup 14. The cyclone separator is located at the upstream of the fan assembly 20 near the airflow inlet 160, the cyclone separator is connected with the dust cup for disassembly, so that the installation space is directly exposed in one-step operation, and the disassembly and assembly operation steps of the filter assembly 50 are simple.

To facilitate cleaning of the filter assembly 50 when the filter assembly 50 is removed. In an embodiment, referring to fig. 2 and 3, the lower surface of the first filtering unit 51 is exposed, and at least a part of the side surface of the second filtering unit 52 is also exposed, that is, at least a part of the surfaces of the first filtering unit 51 and the second filtering unit 52 are exposed, so that the first filtering unit and the second filtering unit are convenient to clean, and the required drying time is short, so that the first filtering unit and the second filtering unit can be put into use again as soon as possible.

Fig. 4 shows an exploded view of the filter assembly 50. In this embodiment, the filter assembly 50 includes a lower cover 53 and an upper cover 55, the upper cover 55 is coupled to one end of the second filter unit 52, the lower cover 53 is coupled to the other end of the second filter unit 52, and the first filter unit 51 is coupled to the lower cover 53. The lower cover 53 and the upper cover 55 serve to support the first filter unit 51 and the second filter unit 52, and seal structures 54 and 56 are provided between the lower cover 53 and the second filter unit 52 and between the upper cover 55 and the first filter unit 51, respectively, in order to prevent air flow from passing through gaps other than the first filter unit 51 and the second filter unit 52. Thereby reducing the flow of air unfiltered to the fan assembly 20 and out to the environment.

In one embodiment, the outer side surface of the second filter unit 52 forms the outer side surface of the filter assembly 50, so that the outer side surface of the second filter unit 52 is directly exposed for cleaning and drying. Further, the inner side surface of the second filter unit 52 forms the inner side surface of the filter assembly 50, and both the inner surface and the outer surface of the second filter unit 52 are exposed, both of which are convenient for cleaning and drying. Since the upper cover 55 and the lower cover 53 cover at least both end edges of the second filter unit 52, the outer side surface of the filter assembly 50 is understood as a portion of the outer side surface between the upper cover 55 and the lower cover 53.

In one embodiment, the second filter unit 52 may have a cover part, but more than 80% of the outer side surface of the second filter unit 52 is present as the outer side surface of the filter assembly 50, thereby securing washing convenience and drying efficiency. Accordingly, more than 80% of the inner side surface of the second filter unit 52 serves as the inner side surface of the filter assembly 50.

In the embodiment shown in fig. 1-4, the second filter element 52 has a cylindrical shape and the first filter element 51 has a disc shape matching the cylindrical end face shape.

In one embodiment, the air inlet duct 16 and the cyclone are two separate pieces, with the air inlet duct 16 communicating with the cyclone. In another embodiment, the air inlet duct 16 is part of a cyclonic separator, and the dirt cup 14 is removed along with the air inlet duct 16. Specifically, the air inlet duct 16 is fixedly connected to or integrally formed with the dust cup 14, and when dust needs to be poured, the dust cup 14 and the air inlet duct 16 are detached from the main housing 10 as a whole, and then the dust is poured and installed back as a whole. The air inlet duct 16 is removed from and installed in the main housing 10 together with the dust cup 14, so that the number of connection structures is reduced, and the handheld cleaner is simpler in structure and more compact in size.

The dust suction pipe 11 can be connected with a dust suction working head which is used for contacting the cleaning surface so that dust enters the dust suction pipe 11 along with the dust suction working head. The dust-collecting working heads can be of various types to adapt to different working surfaces, and one of the dust-collecting working heads is connected to the dust-collecting inlet 110. The dust suction pipe 11 can also be fixedly connected with the dust suction working head, or the dust suction pipe 11 is directly constructed into a structure which is contacted with the cleaning surface for dust suction.

In order to ensure the portability of the handheld dust collector, at least part of the battery pack 60 is arranged in the handle 12, and the existing internal space of the handle 12 is used for accommodating the motor, so that the overall volume of the handheld dust collector can be reduced, and the handheld dust collector is smaller. Specifically, the handle 12 has an accommodating space therein, and at least a part of the battery pack 60 is disposed in the accommodating space.

In order to ensure the dust collection capacity of the handheld dust collector, the embodiment of the application adopts large current to work. When the hand-held cleaner is in a dust collection working state, the current output by the battery pack 60 is more than or equal to 5A. The working current higher than 5A is adopted, so that strong energy supply is provided for the handheld dust collector, larger suction force is generated, and the dust collection effect is better. In one embodiment, the battery pack 60 outputs a current in a range of 10A-30A, which is better in dust-absorbing capability.

In this embodiment, the battery pack 60 includes a plurality of battery cells, specifically, 6 battery cells are taken as an example for illustration, please refer to fig. 2 and fig. 3, along the central line direction of the handle 12, the 6 battery cells are arranged in two rows, each row has 3 battery cells connected to each other at the head, the two rows of battery cells are arranged in parallel, each battery cell is substantially parallel to the central line direction of the handle 12, the battery pack 60 formed by the two rows of battery cells is substantially a rectangular parallelepiped, the height of the battery pack is the diameter of two battery cells, the width of the battery pack is the diameter of one battery cell, and the length of the battery pack is the length of 3 battery cells. So set up, be favorable to the temperature of group battery 60 to scatter and disappear, can be littleer to the diameter of handle 12 moreover, accord with the comfortable requirement that the staff gripped, can not too thick lead to gripping uncomfortable.

Referring to fig. 2, the motor cover 23 has an air inlet 238 and an air outlet 230, the air inlet 238 is located on an end surface of the motor cover 23 close to the dust cup 14, and the air outlet 230 is located on a side wall of the motor cover 23, specifically, on a side wall of an outer cover of the motor cover 23. When the fan assembly 20 is operated, the airflow enters the dust cup 14 through the airflow inlet 160 under the negative pressure, flows out of the dust cup 14 after being separated, enters the motor cover 23 through the air inlet 238, flows through the motor 21, and flows out of the air outlet 230. So set up, the air intake 238 of fan subassembly 20 forms on the terminal surface of motor cover 23, and air outlet 230 sets up on the lateral wall of motor cover 23, and the air current gets into from the axial of fan subassembly 20, and then air outlet 230 radially flows out, and the wind channel in the fan subassembly 20 is shorter, does not have the bending, and the air current can be smooth and easy follow dirt cup 14 after inhaling discharge from air outlet 230, and the air current loss is little, and handheld dust catcher suction efficiency is high.

In order to ensure the air flow efficiency and further reduce the air flow loss, in an embodiment, the air outlet 230 faces the air outlet 100, and the air flow flows out from the air outlet 230 and directly flows out from the air outlet 100, so that the air flow is smooth.

In the embodiment shown in fig. 5, the first filter unit 51 and the second filter unit 52 are provided separately. Specifically, the first filter unit 51 is disposed within the dust-gas separation assembly downstream of the cyclone separator 40. The second filter unit 52 is separately disassembled and assembled. In this embodiment, the second filter unit 52 is also removed in a direction away from the handle 12, the direction of the arrow shown in fig. 5 is the installation direction, and the direction opposite to the installation direction is the removal direction, and the installation path is the same as the removal path. The structure and the detaching direction of the second filter unit 52 are the same as those of the above embodiments, and are not described in detail.

Fig. 6 shows another embodiment, in which the opening positions of the air inlet 238 and the air outlet 230 of the motor cover 23 are the same as those of the embodiment shown in fig. 2, except that the first filter unit 51 and the second filter unit 52 are connected and disconnected in different manners. In the embodiment shown in fig. 6, the connection structure of the first filter unit 51 and the second filter unit 52 is the same as that of the embodiment shown in fig. 5, and is not described again.

The above is only one embodiment of the present invention, and any other modifications based on the concept of the present invention are considered as the protection scope of the present invention.

Claims (10)

1. A hand-held cleaner, comprising:

a main housing (10);

a handle (12), said handle (12) being connected to said main housing (10) or being integrally formed with said main housing (10), having a gripping area for a user to grip;

a fan assembly (20) disposed within the main housing (10) for driving an air flow to generate a negative pressure;

the dust cup (14) is detachably connected to the main shell (10), and the dust cup (14), the main shell (10) and the handle (12) are sequentially arranged in a straight shape;

a filter assembly (50) comprising a first filter unit (51) and a second filter unit (52) for filtering the air flow, the first filter unit (51) being located upstream of the fan assembly (20) and the second filter unit (52) being located downstream of the fan assembly (20) in the air flow direction;

the filter assembly (50) at least partially nests over the fan assembly (20) as a unit, and the filter assembly (50) is removed from the fan assembly (20) as a unit in a direction away from the handle (12).

2. The hand-held cleaner according to claim 1, wherein at least a part of the surface of the first filter unit (51) and the second filter unit (52) is exposed after the filter assembly (50) is disassembled.

3. A hand-held cleaner according to claim 2, characterised in that at least part of the outer side surface of the second filter unit (52) forms the outer side surface of the filter assembly (50).

4. A hand-held cleaner according to claim 2 or 3, characterised in that at least part of the inside surface of the second filter unit (52) forms the inside surface of the filter assembly (50).

5. A hand-held cleaner according to claim 2, characterised in that more than 80% of the outside surface of the second filter unit (52) forms the outside surface of the filter assembly (50).

6. The hand-held cleaner according to claim 2, wherein a surface of the first filter unit (51) facing away from the fan assembly (20) forms an end face of the filter assembly (50).

7. The hand-held cleaner according to claim 1, wherein the filter assembly (50) comprises a lower cover (53) connected to one end of the second filter unit (52) and an upper cover (55) connected to the other end of the second filter unit (52), and sealing structures (54, 56) are provided between the lower cover (53) and the second filter unit (52) and between the upper cover (55) and the first filter unit (51).

8. The hand-held cleaner according to claim 1, wherein the filter assembly (50) is removable and installable along an axial direction of the fan assembly (20).

9. The hand-held cleaner of claim 1, further comprising a cyclonic separator located at least partially within the dirt cup, the cyclonic separator being removable and installable with the dirt cup (14) from the main housing (10).

10. The hand-held cleaner according to claim 1, wherein the second filter unit (52) is in the shape of a sleeve, the first filter unit (51) covers one end connected to the second filter unit (52), and the opposite end of the second filter unit (52) is open.

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