CN220275520U

CN220275520U - Filtering component, dust collector and cleaning set

Info

Publication number: CN220275520U
Application number: CN202321389663.8U
Authority: CN
Inventors: 张丹
Original assignee: Suzhou Songmu Technology Co ltd
Current assignee: Suzhou Songmu Technology Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2024-01-02
Anticipated expiration: 2033-06-02

Abstract

The utility model discloses a filter assembly, a dust collector and a cleaning set, wherein the filter assembly comprises a cyclone separator and a HEPA assembly; the cyclone separator comprises a filtering bracket and a filter screen, wherein the side wall of one end of the filtering bracket is provided with an air guide structure which protrudes outwards in the radial direction and extends spirally towards one side of the filter screen, and the air guide structure is provided with a plurality of first air outlet holes which penetrate through; the HEPA subassembly includes HEPA support and HEPA body, and it has a plurality of second air-out holes to open on the HEPA support, and on the HEPA support was located to the HEPA body and it was including a plurality of folds, was formed with the air current circulation passageway along cyclone's axis direction between arbitrary two adjacent folds. The spiral air guide structure is arranged, and the spiral first air outlet hole is formed in the air guide structure, so that not only can the gas-solid separation in a dust collection state be realized, but also the self-cleaning of the inside and the outside of the filter assembly and the inner wall of the dust cup during the self-dust collection can be realized. Simple structure and good self-cleaning dust-discharging effect.

Description

Filtering component, dust collector and cleaning set

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a filter assembly, a dust collector and a cleaning set.

Background

Hand-held dust collectors are increasingly being used in thousands of households by virtue of their small portability and lack of power cord constraints. The handheld dust collector generally adsorbs impurities such as rubbish to the dust bucket through the negative pressure that the fan produced and gathers, and dirt cup volume is less, opens the dust bucket again after finishing using and emptys rubbish, but dust can scatter when falling the dirt, causes secondary pollution. In order to solve the problems, a base station with a dust collection function appears on the market, so that dust in a dust cup can be collected, and dust is prevented from rising. For example, chinese patent document No. CN218651617U discloses a dust collector base station dust collecting system, including base station and dust collector, the base station includes base station, bracing piece and supporting part, be equipped with the accommodation chamber of album dirt in the supporting part, be equipped with dust bag and negative pressure subassembly in the base station, the dust collector includes handheld pole and dust cup, the dust cup has dust cup main part and dust cup bottom, be equipped with the release button that control dust cup bottom rotated in order to open or close on the dust cup main part, the dust collector is arranged in on the base station, trigger part on the base station triggers the bottom release button, the dust cup bottom is opened, negative pressure subassembly suction makes accommodation chamber inside produce the negative pressure, the inside dust of dust cup main part falls automatically and collects in the base station, reach the purpose from album dirt. The cleaning equipment of this kind of conventional scheme, whole clean suit has set up two suction device, a suction device sets up in the dust catcher, be used for the dust catcher to make in the dirt cup produce the negative pressure in order to reach the purpose of dust absorption under the dust absorption state, another suction device is used for making in the dirt collection chamber of basic station produce the negative pressure in order to reach the purpose of collecting dirt in the dirt cup dust promptly, on the one hand the cost is higher, on the other hand because of the longer suction channel of air current through the front end when sucking, the amount of wind loss is great, it is less to lead to the integrated effective amount of wind, the dust collection effect is relatively poor, on the other hand the weight of whole clean suit is great, be unfavorable for the customer to carry and remove. In addition, a filtering and separating assembly for separating dust particles, such as a conventional cyclone filter, is generally disposed in a dust cup of the dust collector, and after the filtering and separating assembly is frequently used, a lot of dust and impurities are accumulated on a filter core, so that the filtering effect is deteriorated, and the filtering effect needs to be improved by cleaning the filter, which is a problem for the consumers. The first technology generally adopts to dismantle the filter assembly and manually wash, blow wash etc. but this kind of mode cleaning process is loaded down with trivial details inefficiency, because the dust is nearer from the people in the hand washing process, and the dust gets into in the human respiratory system easily during the washing, consequently, can't satisfy market demand now. In order to solve the problem, there are various schemes of self-cleaning structures of filters in the prior market, which can be generally divided into a contact cleaning structure and a non-contact cleaning structure, wherein the contact cleaning structure is provided with a filter screen directly acted on the filter by scraping, brushing, scraping and the like, and the non-contact type structure is provided with a knocking vibration or negative pressure suction mode. The contact type cleaning mode is generally operated along with the starting of the dust collector, a user cannot select self-cleaning time according to needs, noise is large during working, experience is affected, cleaning effect is poor, a filter screen is easy to damage in the cleaning process of a harder cleaning component of a scraper, and the filtering effect of the filter screen is affected and even the filter screen is disabled. The non-contact scheme is used in the existing dust collectors in the market, such as a self-cleaning device for a filter and a dust collector disclosed in chinese patent publication No. CN116019386a, and the self-cleaning device for a filter comprises a casing, a power source, a transmission assembly, a cam, a knocking member and an elastic member. The knocking part is used for knocking a knocking object connected with the filter, the knocking part is used for knocking the filter to generate vibration, so that dust is separated from the filter screen in a vibrating mode, the filter is cleaned, but in the scheme, the structure of the self-cleaning device of the filter is very complex, the design cost is high, the knocking part can only clean the filter screen of the filter, and dust attached to the inner wall of the dust cup cannot be cleaned. In the negative pressure suction scheme, on one hand, a suction device is also required to be added, so that the cost is high; on the other hand, because the suction air flow needs to pass through the suction channel with a longer front end, the air quantity loss is larger, the air quantity which actually enters into the dust cup to carry out back flushing on the filter screen of the filter is smaller, and the self-cleaning effect of the filter is not good. The existing filtering component structure mostly adopts a cyclone filtering structure, but the existing cyclone filtering structure is only used for realizing gas-solid separation under the dust collection state, has simpler function, and needs to be further improved to strengthen the function. Accordingly, the present utility model has been made to solve the above-mentioned problems.

Disclosure of Invention

In view of at least one of the above problems, it is an object of the present utility model to provide a filter assembly, a vacuum cleaner and a cleaning kit.

The technical scheme of the utility model is as follows:

one of the objects of the present utility model is to provide a filter assembly comprising a cyclone separator for primary filtration and a HEPA assembly disposed within the cyclone separator for secondary filtration; the cyclone separator comprises a filtering bracket and a filter screen arranged on the filtering bracket, wherein the side wall of one end of the filtering bracket is provided with an air guide structure which protrudes outwards along the radial direction and extends spirally towards one side of the filter screen, and the air guide structure is provided with a plurality of first air outlet holes which penetrate through;

the HEPA component comprises a HEPA bracket and a HEPA body, the HEPA bracket is suitable for being fixed at one end of the filter bracket, which is provided with the first air outlet hole, and a plurality of second air outlet holes are formed in the HEPA bracket, the HEPA body is arranged on the HEPA bracket and comprises a plurality of folds, and an airflow circulation channel along the axial direction of the cyclone separator is formed between any two adjacent folds;

the filter assembly is used in a dust collector and has a dust collection state and a dust blowing state, the other end of the filter support is closed in the dust collection state, airflow forms spiral airflow along the outer contour of the air guide structure, the spiral airflow enters the filter support after once filtered by the filter screen and is discharged from the top opening of the HEPA body along the airflow circulation channel after secondarily filtered by the HEPA assembly; when in a dust blowing state, air flow enters the filter support through the second air outlet hole, and is blown to the space between the outer wall of the filter screen and the inner wall of the dust cup body of the dust collector through the first air outlet hole, and is blown to the space between the inner wall of the filter support and the outer wall of the HEPA body through the first air outlet hole, so that the self-cleaning of the cyclone separator, the HEPA component and the dust cup is realized.

Another object of the present utility model is to provide a vacuum cleaner, which includes a brush head assembly, a main body assembly, a fan assembly and a dust cup assembly, wherein the brush head assembly is connected with an air inlet channel on the main body assembly through an extension pipe, the fan assembly and the dust cup assembly are mounted on the main body assembly, the dust cup assembly includes a dust cup body and a filter assembly disposed in the dust cup body, and the filter assembly is any one of the above filter assemblies.

It is still another object of the present utility model to provide a cleaning kit, including a cleaner and a base station, where the cleaner is the cleaner, and/or the base station is a blower assembly in the cleaner when in a dust collecting state and the power source is in a dust collecting state, and the blower assembly positively blows air into the dust cup assembly and the base station when in the dust collecting state.

Compared with the prior art, the utility model has the advantages that:

according to the filter assembly, the spiral air guide structure is arranged, and the first air outlet holes with the spirals are formed in the air guide structure, so that not only can the gas-solid separation in a dust collection state be realized, but also the self-cleaning of the inside and the outside of the filter assembly and the inner wall of the dust cup during self-dust collection can be realized. Simple structure and good self-cleaning dust-discharging effect.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples:

fig. 1 is a schematic perspective view of a cleaning kit according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a filter assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of the filter assembly of FIG. 2 with the bottom facing upward;

FIG. 4 is a top view of the filter assembly of FIG. 2;

FIG. 5 is a schematic cross-sectional view of the filter assembly of FIG. 2 (arrows indicate airflow directions in a dust suction state and a dust blowing state);

FIG. 6 is a front view of a HEPA assembly of the filter assembly of FIG. 2;

FIG. 7 is a schematic perspective view of the HEPA module of the filter module of FIG. 2 with the bottom up;

FIG. 8 is a top view of the filter assembly HEPA assembly of FIG. 2;

figure 9 is a cut-away view of a vacuum cleaner in accordance with an embodiment of the present utility model.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

A filter assembly according to an embodiment of the present utility model, referring to fig. 2 to 8, includes a cyclone 321 and a HEPA assembly 322, wherein the HEPA assembly 322 is disposed inside the cyclone 321 and used as a filter element, the cyclone 321 is used for primary filtration, and the HEPA assembly 322 is used for secondary filtration. The cyclone 321 comprises a filter support 3211 and a filter screen 3212 arranged on the filter support 3211, wherein a side wall of one end of the filter support 3211 is provided with an air guide structure 32111 protruding outwards in the radial direction and extending spirally towards one side of the filter screen 3212, and the air guide structure 32111 is provided with a plurality of first air outlet holes 32112 penetrating through. The HEPA assembly 322 comprises a HEPA support and a HEPA body 3222, the HEPA support is adapted to be fixed at one end of the filter support 3211 where the first air outlet 32112 is provided and a plurality of second air outlets 32211 are provided, the HEPA body 3222 is arranged on the HEPA support and comprises a plurality of folds 32221, and an air flow channel 32222 along the axial direction of the cyclone separator 321 is formed between any two adjacent folds 32221, and it is noted that the top of the HEPA body is provided with an opening so that air flow can be discharged out of the dust cup assembly from the opening in the dust collection state. The filter assembly 32 is used in a dust collector and has a dust collection state and a dust blowing state, in the dust collection state, the other end of the filter support 3211 is closed, airflow forms a spiral airflow through filter screen 3212 along the outer contour of the air guide structure, enters the filter support 3211 after once filtration and is discharged from the top opening of the HEPA body along the airflow through channel 32222 after secondary filtration by the HEPA assembly 322, that is, in the dust collection state, the airflow is discharged without passing through the second air outlet 32211; in the dust blowing state, air flow enters the filter support 3211 from the second air outlet 32211 and is partially blown to the space between the outer wall of the filter screen 3212 and the inner wall of the dust cup body 31 of the dust collector and is partially blown to the space between the inner wall of the filter support 3211 and the outer wall of the HEPA body 3222 through the first air outlet 32112, so that the cyclone 321, the HEPA component 322 and the dust cup are self-cleaned. According to the filter assembly provided by the embodiment of the utility model, the spiral air guide structure 32111 is arranged, and the air guide structure 32111 is provided with the plurality of spiral first air outlet holes 32112, so that not only can the gas-solid separation in a dust collection state be realized, but also the self-cleaning of the inside and the outside of the filter assembly 32 and the inner wall of the dust cup body during self-dust collection can be realized. Simple structure and good self-cleaning dust-discharging effect.

In the embodiment of the present utility model, the HEPA body 3222 is formed by reversely folding a sheet or plate HEPA several times, and is rolled into a frustum structure, each fold 32221 is triangular as shown in fig. 7, and the airflow channel 32222 formed between any two adjacent folds 32221 is also triangular.

Specifically, as shown in fig. 2-8, the filter holder 3211 has a cavity in the middle to facilitate HEPA assembly 322 installation. For example, when the filter support 3211 is used, as shown in fig. 2, the filter support 3211 includes a first section, a second section and a third section from top to bottom, wherein the outer diameter of the first section is greater than the outer diameters of the second section and the third section, that is, the filter support 3211 is thick up and thin down. More specifically, the outer wall surface of the first section protrudes radially outward to form a wind guiding structure extending spirally downward, and in the embodiment of the present utility model, the wind guiding structure is preferably a spiral wind guiding groove as shown in fig. 3, and specifically, the wind guiding structure includes a guiding wall 321111 extending spirally downward from the top end of the first section in the axial direction, that is, as shown in fig. 5, and a wind shielding wall 321112 formed outside the guiding wall 321111 and extending in the axial direction. The top end of the first section has an opening for the HEPA assembly 322 to rest in. The second section is provided with a filter screen 3212, the third section is in a reverse cone shape, preferably, as shown in fig. 3, the lower end of the third section is provided with a blowing dust blocking structure 3214 which is closed in a dust collection state and opened in a dust blowing state, the air guiding structure, namely, the spiral air guiding groove is provided with a plurality of first air outlet holes 32112 which penetrate through, and the outlet of the lower end of the spiral air guiding groove is extended to butt joint with the outer side of the filter screen 3212. The air outlet position of the filter support 3211 towards the air inlet channel in the installation state is also provided with an air inlet dust blocking structure 3213 which is opened in the dust collection state to conduct the air inlet channel and the dust cup body 31 and closed in the positive pressure dust blowing state to cut off the air inlet channel 11 and the dust cup body 31, preferably, the other end of the filter support 3211, namely the lower end as shown in fig. 2, is in an inverted cone shape, the air inlet dust blocking structure 3213 is arranged on the top end side wall of the first section of the filter support 3211 in a turnover manner, and the air inlet dust blocking structure just turns to the inlet blocking the spiral air guide groove after opening the air inlet channel, that is to say, in the dust collection state, the air flow entering the dust cup body 31 from the air inlet channel does not enter the spiral air guide groove, but only forms the spiral air flow downwards along the outer wall spiral of the spiral air guide groove. For the HEPA assembly 322, as shown in fig. 6 to 8, the HEPA assembly 322 includes a HEPA support 3221, a HEPA body 3222 and a HEPA bottom cover 3223, where a plurality of second air outlet holes 32211 are formed in the HEPA support 3221, when the HEPA support 3221 is installed, the HEPA support 3221 is covered at the top opening of the first section of the filter support 3211, and the first air outlet holes 32112 and the second air outlet holes 32211 correspond, where the corresponding points refer to that the projections of the two in the same horizontal plane, that is, along the axial direction of the filter assembly 32, are at least partially overlapped, may be completely overlapped, or may be partially overlapped. In a preferred embodiment of the present utility model, as shown in fig. 7 and 8, the HEPA support 3221 is a circular tray, the wall surface of the HEPA support 3221 provided with the second air outlet holes 32211 is a circular plane, the second air outlet holes 32211 include two circles of air outlet holes which are distributed at intervals along the radial direction with the center of the circular plane as the center, specifically, as shown in fig. 8, the second air outlet holes 32211 on the HEPA support 3221 are two groups, the two groups of second air outlet holes 32211 are concentric and have different radii, that is, the HEPA support 3221 is provided with two inner and outer circles of second air outlet holes 32211, each circle of second air outlet holes 32211 is preferably formed by a plurality of circumferentially-spaced arc-shaped air holes, wherein the second air outlet holes 32211 of the inner circle correspond to the gap between the outer wall of the HEPA body 3222 and the inner wall of the filter support 3211, that is, the space between the second air outlet holes 32211 of the inner circle and the inner wall of the cyclone separator 321 and the outer wall of the HEPA body 3222 have an overlapping in the horizontal plane. The second air outlet holes 32211 of the outer ring correspond to the first air outlet holes 32112, that is, there is an overlap between the projections of the second air outlet holes 32211 of the outer ring and the first air outlet holes 32112 on the horizontal plane.

According to some preferred embodiments of the present utility model, the HEPA assembly 322 further includes a HEPA bottom cover 3223 disposed at an end of the HEPA body 3222 away from the HEPA support 3221, and the HEPA bottom cover 3223 is provided with a relief notch 32231 at any airflow channel 32222, and it should be noted that two sides of the relief notch 32231 are coplanar with corresponding surfaces of the corresponding fold 32221, that is, in the dust collection state and the dust blowing state, airflow passing through the airflow channel 32222 is not blocked, and airflow directions in the two states passing through the filter support 3211 are opposite, so that airflow directions in the filter support 3211 are forward in the dust collection state, and then airflow in the filter support 3211 is reverse in the dust blowing state, that is, the airflow in the dust blowing state reversely blows the inner wall of the filter support 3211 with the outer wall of the HEPA body 3222 and the outer wall of the filter support 3211 with the inner wall of the dust cup body 31. According to the cleaning equipment provided by the embodiment of the utility model, air flow can directly enter the air flow channel 32222 through the avoiding notch 32231 to carry out secondary filtration in a dust collection state, particularly in a self-cleaning mode, after the air flow is blown by the air flow channel 32222 to the HEPA body 3222, the air flow is discharged through the avoiding notch 32231 and passes through the bottom opening of the filter support 3211, and the arrangement of the avoiding notch 32231 can also ensure that no dust stays in dead angles temporarily during self-cleaning operation, so that the self-cleaning efficiency of the filter can be greatly improved. Specifically, as shown in fig. 6, the HEPA main body 3222 has a reverse taper shape with a thick upper end and a thin lower end, and the HEPA bottom cover 3223 has a polygonal shape with a plurality of corners. An alternative embodiment, the HEPA bottom cover 3223 of the HEPA assembly 322 is not provided with the relief notch 32231. In another alternative embodiment, the HEPA bodies 3222 may be in a conventional sheet-like arrangement, i.e., one or more sheet-like HEPAs arranged in a side-by-side spaced or array arrangement at the bottom of the HEPA support 3221, each sheet-like HEPA body 3222 also having a plurality of pleats 32221. It should be noted that, in the dust collection state, the airflow channel 32222 is specifically a space defined between any adjacent pleats on the inner wall of the HEPA body 3222 facing away from the filter support 3211, and in the dust blowing state, the airflow channel 32222 is a space defined between any adjacent two pleats on the outer wall of the HEPA body 3222.

In the embodiment of the utility model, in the dust collection state, the dust inlet and shielding structure 3213 is opened, the dust blowing and shielding structure 3214 is closed, the air flow with dust and sundries sucked in the air inlet channel enters the dust cup body 31 and is filtered once by the filter screen 3212 along the air guide structure, dust particles directly fall down, the air flow enters the filter support 3211 and is filtered twice along the air flow channel 32222, and then enters the fan assembly 20 through the second air outlet 32211 and finally is discharged through the dust collection exhaust port 12; in the positive pressure dust blowing state, the air inlet dust blocking structure 3213 is closed, the air blowing dust blocking structure 3214 is opened, the air flow entering through the dust blowing air inlet 13 is completely blown into the space between the outer wall of the filter support 3211 and the inner wall of the dust cup body 31 after passing through the second air outlet 32211 by the fan assembly 20, or is partially blown into the space between the inner wall of the filter support 3211 and the outer wall of the HEPA body 3222, is partially blown into the space between the outer wall of the filter support 3211 and the inner wall of the dust cup body 31, and finally enters into the base station 40 through the opening at the bottom of the dust cup body 31 to realize self-cleaning of the dust collecting and filtering assembly 32 and the inner wall of the dust cup body 31. It should be noted that, in the dust blowing state, a part of air flow is a spiral air flow formed around the outer wall of the air guiding structure after exiting through the first air outlet 32112, and the part of air flow is consistent with the air flow entering the dust cup body 31 from the air inlet channel in the dust collection state in a rotating direction, so that self-cleaning of the outer wall of the air filter and the inner wall of the dust cup body 31 can be realized. In addition, a part of the air flow passing through the first air outlet 32112 is self-cleaned along the guiding wall 321111 and spirally downward to the inner wall of the filter screen 3212, and a part of the air flow passes through the second air outlet 32211 to enter between the inner wall of the filter support 3211 and the outer wall of the HEPA body 3222, and the flow direction of the part of the air flow is consistent with the folding line between two adjacent folds 32221 of the HEPA body 3222, so as to clean the outer wall of the HEPA body 3222. According to the cleaning device of the embodiment of the utility model, through the improvement of the structure of the filtering component 32, although the cleaning device of the embodiment of the utility model has the same airflow reversely blowing the filtering component 32 as the existing suction self-cleaning device in the dust blowing state, the self-cleaning of the outer wall of the cyclone filter and the outer wall of the HEPA body 3222 can be realized through the arrangement of the structure and the adoption of the positive pressure self-cleaning mode in the embodiment of the utility model, and the self-cleaning of the inner wall of the dust cup can also be realized.

For the wind-shielding dust structure 3214, a conventional dust shielding sheet made of soft material, such as a rubber sheet with a cross-cut in the middle as shown in fig. 4, is used. As an alternative embodiment, the dust blowing structure 3214 may be a conventional one-way valve, and the wind can only flow in one direction, that is, the wind cannot enter the inside of the filter support 3211 from bottom to top in the dust collection state, but in the dust blowing state, the air flow can be discharged from the inside of the filter support 3211 into the dust cup and then be led into the base station 40. As an alternative embodiment, instead of providing the blowing dust structure 3214, the bottom end of the third section of the filter holder 3211 may be opened and the opening may extend directly to contact the inner surface of the movable cover 34 on the bottom cover 33 of the dust cup body 31, instead of being fixed. In the dust collection state, the bottom end of the filter support 3211 can be tightly sucked with the movable cover plate 34 under the action of negative pressure in the dust cup body 31 so as to play a sealing role, and in the positive pressure dust blowing state, the bottom end of the filter support 3211 is not fixedly connected with the movable cover plate 34, and the movable cover plate 34 can be blown open under the action of positive pressure so that the bottom end opening of the filter support 3211 is opened, so that impurities such as dust on the outer wall of the HEPA body 3222 can be blown down and led into the base station 40 during self-cleaning operation.

For the wind guiding structure, as shown in fig. 4, the projection of the wind guiding structure in the horizontal plane direction is a circular ring, and at least part of the extending direction of the first wind outlet 32112 and the connecting line between the center of the circular ring and any end of the first wind outlet 32112 form an included angle different from zero. That is, the first air outlet holes 32112 may be partially or fully spiral in the air guiding structure. Specifically, any first air outlet 32112 is, but not limited to, a waist-shaped hole or an oval-shaped hole as shown in fig. 3 and 4, and the extending direction, that is, the long axis direction, of any first air outlet 32112 is disposed at an angle with respect to the line connecting the center of the ring and any end (the end near the center of the ring or far from the center of the ring) of the first air outlet 32112, that is, the extending direction of any first air outlet 32112 is not along the radius or the diameter direction of the ring, but forms an angle with the radius or the diameter direction of the ring, and the angle is not zero. By the design, spiral airflow can be formed when the self-cleaning air blows, and a better self-cleaning dust removing effect can be achieved. Preferably, the extending directions of all the first air outlet holes 32112 on the horizontal projection plane are equal to the included angle formed by the connecting line of the midpoint of the circular ring and any end of the first air outlet holes 32112. Is convenient for design and processing, is more beneficial to forming spiral airflow, and further improves the self-cleaning effect.

The embodiment of the utility model also provides a dust collector, as shown in fig. 2 to 9, comprising a brush head assembly 50, a machine body assembly 10, a fan assembly 20 and a dust cup assembly 30, wherein the brush head assembly 50 is connected with an air inlet channel on the machine body assembly 10 through an extension pipe, the fan assembly 20 and the dust cup assembly 30 are installed on the machine body assembly 10, the dust cup assembly 30 comprises a dust cup body 31 and a filter assembly 32 arranged in the dust cup body 31, and the filter assembly 32 is the filter assembly 32 in the embodiment. The filter assembly 32 of the above embodiment has at least the beneficial effects of the filter assembly 32 of the above embodiment, and will not be described in detail. The brush head assembly 50 is a conventional roller brush type floor brush assembly, and is not specifically described or defined in detail, and is not the point of the present application.

The present utility model also provides a cleaning kit, as shown in fig. 1 to 9, comprising a cleaner and a base station 40. Wherein the dust collector is the dust collector of the embodiment. The dust collector of the embodiment has at least the beneficial effects of the dust collector, and is not described in detail.

According to some preferred embodiments of the present utility model, the power sources of the cleaning sleeve in the dust collecting state and the dust collecting state are the blower assembly 20 in the dust collector, and in the dust collecting state, the blower assembly 20 blows air in the dust cup assembly 30 and the base station 40 in the forward direction, which is opposite to the wind direction in the dust collecting state when the dust collector is used alone. The specific construction and principles are not described in detail herein and may be described with reference to the contents of the applicant's application document filed on the same day, a cleaning apparatus with dust suction, self-cleaning and collection.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. A filter assembly comprising a cyclone separator for primary filtration and a HEPA assembly for secondary filtration disposed within the cyclone separator; the cyclone separator comprises a filtering bracket and a filter screen arranged on the filtering bracket, wherein a side wall of one end of the filtering bracket is provided with an air guide structure protruding outwards along the radial direction and extending spirally towards one side of the filter screen, and the air guide structure is provided with a plurality of first air outlet holes penetrating through;

2. The filter assembly of claim 1, wherein the projection of the air guiding structure on the horizontal plane is a circular ring, and at least part of the extending direction of the first air outlet and the connecting line between the center of the circular ring and any end of the first air outlet form an included angle which is not zero.

3. The filter assembly of claim 2, wherein the direction of extension of all the first air outlet openings on the horizontal projection plane is equal to the angle formed by the connection line between the center of the circular ring and either end of the first air outlet openings.

4. The filter assembly of claim 1, wherein the wall surface of the HEPA support with the second air outlet is a circular plane, and the second air outlet comprises two circles of air outlets which are distributed at intervals along the radial direction with the center of the circular plane as the center, wherein the second air outlet of the inner circle and the projection of the space between the inner wall of the cyclone separator and the outer wall of the HEPA body on the horizontal plane are overlapped, and the projection of the second air outlet of the outer circle and the projection of the first air outlet on the horizontal plane are overlapped.

5. The filter assembly of claim 1, wherein the HEPA assembly further comprises a HEPA bottom cap disposed at an end of the HEPA body remote from the HEPA support, the HEPA bottom cap having a relief notch corresponding to any airflow passage.

6. The filter assembly of claim 1, wherein the HEPA body is cylindrical or sheet-like.

7. A filter assembly according to any one of claims 1 to 6, wherein the other end of the filter holder is of inverted cone shape and extends to contact with or has a dust blowing shield structure therein which is closable in a dust suction condition and openable in a dust blowing condition, on a bottom cover of a dust cup of the cleaner.

8. The filter assembly of claim 7, wherein the blowing dust barrier is a dust barrier made of soft material or a one-way valve.

9. The utility model provides a dust catcher, includes brush first subassembly, fuselage subassembly, fan subassembly and dirt cup subassembly, brush first subassembly through the extension pipe with air inlet channel on the fuselage subassembly is connected, fan subassembly and dirt cup subassembly install in on the fuselage subassembly, the dirt cup subassembly includes the dirt cup body and locates filter component in the dirt cup body, its characterized in that, filter component is the filter component of any one of claims 1-8.

10. A cleaning kit comprising a cleaner and a base station, wherein the cleaner is the cleaner of claim 9, and/or the base station is a blower assembly in the cleaner when in a dust collecting state and the power source is the blower assembly when in a dust collecting state, and the blower assembly positively blows air into the dust cup assembly and the base station when in the dust collecting state.