CN110811422A

CN110811422A - Filtering component and dust collector

Info

Publication number: CN110811422A
Application number: CN201911217570.5A
Authority: CN
Inventors: 李锦坤; 王德旭; 颜勇; 黄月林; 任敏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-02-21

Abstract

The invention relates to a filtering component and a dust collector. A filter assembly, comprising: a support; the first filter piece is arranged on the bracket; the second filter piece is arranged on the bracket; the bracket is detachably arranged on a shell of the dust collector and has a first setting state and a second setting state; when the bracket is in the first setting state, the first filter element is positioned at the upstream of an exhaust fan of the dust collector, and the second filter element is positioned at the downstream of the exhaust fan; when the bracket is in the second setting, the first filter element is located downstream of the suction fan and the second filter element is located upstream of the suction fan. Among the above-mentioned filtering component, after filtering component uses a period of time under the support is in the first condition of setting, can be through setting up the state with the support switching to the second to extension filtering component's live time reduces filtering component's clean frequency, and it is more convenient to use.

Description

Filtering component and dust collector

Technical Field

The invention relates to the technical field of dust collectors, in particular to a filtering assembly and a dust collector.

Background

The pre-filter is a critical component in a vacuum cleaner to protect the suction fan, and in the absence of the pre-filter, dirt and debris can enter the suction fan, affecting the efficiency and performance of the suction fan. In addition, some vacuum cleaners are also provided with a post-filter for filtering the air flow discharged from the suction fan to prevent fine particles in the air flow from entering the atmosphere.

In the traditional dust collector, the front filter and the rear filter are separately arranged, and the front filter is positioned at the front end of the exhaust fan.

Disclosure of Invention

Accordingly, there is a need for a filter assembly and a vacuum cleaner that are easy to use.

The technical scheme is as follows:

a filter assembly, comprising: a support; a first filter element disposed on the bracket; the second filter element is arranged on the bracket; the bracket is detachably arranged on a shell of the dust collector and has a first setting state and a second setting state; when the stand is in the first setting, the first filter element is upstream of an exhaust fan of the vacuum cleaner and the second filter element is downstream of the exhaust fan; when the bracket is in the second setting, the first filter element is located downstream of the suction fan and the second filter element is located upstream of the suction fan.

The filter assembly described above may be used in a vacuum cleaner, the suction fan being adapted to draw an ambient airflow into the cleaner. When the support is in first setting state, the air current that the suction entered in the dust catcher can be earlier through first filtering piece, is filtered by first filtering piece, and later, the air current after being filtered by first filtering piece can continue to flow to the air exhauster, then, the air current that comes out from the air exhauster can be through second filtering piece again, and second filtering piece is used for filtering the air current once more. When the support was in the second setting state, the air current that the suction entered in the dust catcher can be earlier filtered by the second filter piece through the second filter piece, later, and the air current after being filtered by the second filter piece can continue to flow to the air exhauster, then, the air current that comes out from the air exhauster can be through first filter piece again, and first filter piece is used for filtering the air current once more.

Among the foretell filter assembly, when the support is in first setting state, because first filter sets up the upper reaches at the air exhauster, the second filters the piece and sets up the low reaches at the air exhauster, and first filter compares and to filter the dust many in the second, and the rate of utilization is high, and first filter compares and to filter the piece and saturate and lose efficacy more easily in the second. After the filter assembly is used for a period of time under the condition that the support is in the first setting state, the support can be switched to the second setting state, the second filter piece is positioned at the upstream of the exhaust fan, and the first filter piece is positioned at the downstream of the exhaust fan, so that the service time of the filter assembly is prolonged, the cleaning frequency of the filter assembly is reduced, and the filter assembly is more convenient to use.

The technical solution is further explained below:

in one embodiment, the bracket is provided with a first fixing part and a second fixing part;

when the bracket is in the first setting state, the first fixing part is connected with a third fixing part on the shell, and the second fixing part is connected with a fourth fixing part on the shell; when the bracket is in the second setting state, the first fixing part is connected with the fourth fixing part, and the second fixing part is connected with the third fixing part.

In one embodiment, the first fixing portion and the second fixing portion are respectively disposed on two opposite sides of the bracket, the third fixing portion and the fourth fixing portion are disposed on the housing at an interval, and the filter assembly is disposed between the third fixing portion and the fourth fixing portion;

when the bracket is in the first setting state, the first fixing part is fixedly connected with the third fixing part, and the second fixing part is fixedly connected with the fourth fixing part; when the bracket is in the second setting state, the second fixing part is fixedly connected with the third fixing part, and the first fixing part is fixedly connected with the fourth fixing part.

In one embodiment, the first fixing portion and the second fixing portion are both hooks disposed on the bracket, and the third fixing portion and the fourth fixing portion are both anti-drop hooks disposed on the housing;

the first fixing part can be clamped with the third fixing part when the bracket is in the first setting state, and can be clamped with the fourth fixing part when the bracket is in the second setting state; the second fixing part can be in the support is in when the first setting state with the fourth fixing part joint the support is in when the second setting state with the third fixing part joint.

In one embodiment, the first and second filter elements are arranged side by side, the first and second filter elements being symmetrically arranged with respect to a plane dividing the support into two parts of symmetrical configuration with respect to the plane.

In one embodiment, the bracket includes a first position-limiting body and a second position-limiting body connected to the first position-limiting body, the first position-limiting body and the second position-limiting body are disposed at a distance, and the first filter element and the second filter element are disposed between the first position-limiting body and the second position-limiting body.

In one embodiment, the bracket further comprises a separating body disposed between the first and second position-limiting bodies, the first filter element is located on one side of the separating body, and the second filter element is located on the other side of the separating body.

In one embodiment, one end of the separating body is connected with the second limiting body, a first mounting groove is formed in one side, close to the second limiting body, of the first limiting body, and one end, far away from the second limiting body, of the separating body is inserted into the first mounting groove and connected with the first limiting body.

In one embodiment, the first filter element is a cylindrical structure, the first filter element is disposed between the first position-limiting body and the second position-limiting body, and the first position-limiting body is further provided with a first ventilation hole, and the first ventilation hole is communicated with the inner space of the first filter element.

In one embodiment, the second limiting body is further provided with a first air guiding portion, the first filtering member is sleeved outside the first air guiding portion, and the first air guiding portion can guide the airflow in the inner space of the first filtering member to the first air vent or guide the airflow entering the inner space of the first filtering member from the first air vent to the inner wall of the first filtering member.

In one embodiment, the first air guiding portion is opposite to the first vent hole.

In one embodiment, the first air guiding portion gradually approaches the first vent hole from the periphery of the first air guiding portion to the center of the first air guiding portion.

In one embodiment, the first air guiding portion is arc-shaped.

In one embodiment, the second limiting body further includes a first limiting portion, the first limiting portion and the first air guiding portion are spaced apart from each other, a first installation space is formed between the first limiting portion and the first air guiding portion, and one end of the first filter member extends into the first installation space and is connected to the second limiting body.

In one embodiment, a second mounting groove is formed in a side of the first position-limiting body, which is close to the second position-limiting body, and an end of the first filter member, which is far away from the second position-limiting body, is disposed in the second mounting groove and connected to the first position-limiting body.

In one embodiment, the second filter element is a cylindrical structure, the second filter element is disposed between the first position-limiting body and the second position-limiting body, and the first position-limiting body is further provided with a second ventilation hole, and the second ventilation hole is communicated with an inner space of the second filter element.

In one embodiment, the second limiting body is further provided with a second air guiding portion, the second filter element is sleeved outside the second air guiding portion, and the second air guiding portion can guide the airflow in the inner space of the second filter element to the second air vent, or guide the airflow entering the inner space of the second filter element from the second air vent to the inner wall of the second filter element.

In one embodiment, the second air guiding portion is opposite to the second vent hole.

In one embodiment, the second air guiding portion gradually approaches the second vent hole from the periphery of the second air guiding portion to the center of the second air guiding portion.

In one embodiment, the second wind guiding portion is arc-shaped.

In one embodiment, the second limiting body is further provided with a second limiting portion, the second limiting portion and the second air guiding portion are arranged at an interval, a second installation space is formed between the second limiting portion and the second air guiding portion, and one end of the second filter member extends into the second installation space and is connected with the second limiting body.

In one embodiment, a third installation groove is formed in one side, close to the second limiting body, of the first limiting body, and one end, far away from the second limiting body, of the second filter is arranged in the third installation groove and connected with the first limiting body.

In one embodiment, the bracket further comprises a handle connected with the second limiting body or the first limiting body.

In one embodiment, the bracket is formed with a first vent opening opposite the first filter element and a second vent opening opposite the second filter element;

the filter assembly further comprises a sealing element, wherein the sealing element is arranged on the support and is used for being in sealing connection with the shell, so that when the support is in the first setting state, the airflow in the shell enters the first filter element through the first ventilation opening, and when the support is in the second setting state, the airflow in the shell enters the second filter element through the second ventilation opening.

In one embodiment, the bracket comprises a first limiting body and a second limiting body connected with the first limiting body, the first limiting body and the second limiting body are arranged at intervals, and the first filter element and the second filter element are both arranged between the first limiting body and the second limiting body;

the first limiting body and the second limiting body are oppositely arranged at intervals and are provided with the first ventilation opening and the second ventilation opening, the sealing element comprises a first sealing element and a second sealing element, the first sealing element is arranged on the first limiting body, the second sealing element is arranged on the second limiting body, and the first sealing element and the second sealing element are both in sealing connection with the shell.

In one embodiment, a first limiting groove is formed on the first limiting body, a second limiting groove is formed on the second limiting body, the first sealing element is disposed in the first limiting groove, and the second sealing element is disposed in the second limiting groove.

This technical scheme still provides a dust catcher, includes: a housing, an exhaust fan, and a filter assembly as described above; the bracket is detachably arranged on a shell of the dust collector and has a first setting state and a second setting state; when the bracket is in the first setting, the first filter element is located upstream of the suction fan and the second filter element is located downstream of the suction fan; when the bracket is in the second setting, the first filter element is located downstream of the suction fan and the second filter element is located upstream of the suction fan.

In the dust collector, when the bracket is in a first setting state, the first filter piece is arranged at the upstream of the exhaust fan, the second filter piece is arranged at the downstream of the exhaust fan, the first filter piece is more than the dust filtered by the second filter piece, the utilization rate is high, and the first filter piece is more easily saturated and fails than the second filter piece. After the filter assembly is used for a period of time under the condition that the support is in the first setting state, the support can be switched to the second setting state, the second filter piece is positioned at the upstream of the exhaust fan, and the first filter piece is positioned at the downstream of the exhaust fan, so that the service time of the filter assembly is prolonged, the cleaning frequency of the filter assembly is reduced, and the filter assembly is more convenient to use.

Drawings

FIG. 1 is an exploded view of a filter assembly according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a filter assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the graph of FIG. 2 taken along the line A-A;

FIG. 4 is a cross-sectional view of the graph of FIG. 2 taken along the line B-B;

FIG. 5 is a partial cross-sectional view of a vacuum cleaner according to an embodiment of the present invention;

fig. 6 is a partial sectional view of a vacuum cleaner according to an embodiment of the present invention.

Description of reference numerals:

10. the filter assembly comprises a filter assembly, 20, a housing, 21, a wind shielding wall, 22, a third fixing part, 23, a fourth fixing part, 30, an exhaust fan, 40, a hood, 50, an air inlet pipe, 60, an air outlet pipe, 70, a guide pipe, 100, a first filter element, 110, a first ventilation opening, 200, a second filter element, 210, a second ventilation opening, 300, a first limiting body, 310, a first ventilation opening, 320, a second ventilation opening, 330, a first mounting groove, 340, a second mounting groove, 350, a third mounting groove, 360, a first limiting groove, 400, a second limiting body, 410, a separating body, 420, a first fixing part, 430, a second fixing part, 440, a first wind guiding part, 450, a second wind guiding part, 460, a first handle, 461, a second handle, 470, a second limiting groove, 480, a first limiting part, 490, a second limiting part, 500, a first sealing element, 600 and a second sealing element.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1, an embodiment of a filter assembly 10 includes a bracket, a first filter 100 and a second filter 200, wherein the first filter 100 and the second filter 200 are disposed on the bracket.

As shown in fig. 5, wherein the bracket is detachably arranged on the housing 20 of the vacuum cleaner, the bracket has a first arrangement state and a second arrangement state; when the stand is in the first setting, the first filter element 100 is upstream of the suction fan 30 of the cleaner and the second filter element 200 is downstream of the suction fan 30; when the rack is in the second setting, the first filter element 100 is located downstream of the suction fan 30 and the second filter element 200 is located upstream of the suction fan 30.

The filter assembly 10 described above may be used in a vacuum cleaner, with the suction fan 30 being used to draw an ambient airflow into the cleaner. When the stand is in the first setting, the airflow drawn into the vacuum cleaner will first pass through the first filter element 100 and be filtered by the first filter element 100, and then the airflow filtered by the first filter element 100 will continue to flow into the suction fan 30, and then the airflow coming out of the suction fan 30 will pass through the second filter element 200, and the second filter element 200 is used to filter the airflow again. When the stand is in the second setting, the airflow drawn into the vacuum cleaner will first pass through the second filter element 200 and be filtered by the second filter element 200, and then the airflow filtered by the second filter element 200 will continue to flow into the suction fan 30, and then the airflow coming out of the suction fan 30 will pass through the first filter element 100, and the first filter element 100 is used to re-filter the airflow.

In the filter assembly 10, when the bracket is in the first setting state, since the first filter element 100 is disposed upstream of the exhaust fan 30 and the second filter element 200 is disposed downstream of the exhaust fan 30, the first filter element 100 filters more dust and has a higher usage rate than the second filter element 200, and the first filter element 100 is more easily saturated and fails than the second filter element 200. After filter assembly 10 has been in use for a period of time with the bracket in the first setting, second filter element 200 may be positioned upstream of blower 30 and first filter element 100 may be positioned downstream of blower 30 by switching the bracket to the second setting to extend the life of filter assembly 10 and reduce the frequency of cleaning filter assembly 10 for easier use.

Of course, the filter assembly 10 may be used after the bracket is used in the second setting state for a period of time and then switched to the first setting state for reuse.

The first filter element 100 is located upstream of the suction fan 30 of the vacuum cleaner, and the second filter element 200 is located downstream of the suction fan 30, which means that the air flow drawn into the vacuum cleaner flows to the first filter element 100, then to the suction fan 30, and finally to the second filter element 200. The first filter element 100 is located downstream of the suction fan 30, and the second filter element 200 is located upstream of the suction fan 30, which means that the air flow drawn into the vacuum cleaner flows first to the second filter element 200, then to the suction fan 30, and finally to the first filter element 100.

Further, the vacuum cleaner further comprises an air inlet pipe 50 and a duct 70 which are connected in sequence, and the outside air flow enters the filter assembly 10 through the air inlet pipe 50 and the duct 70 in sequence.

As shown in fig. 1 and 6, in one embodiment, the bracket is provided with a first fixing portion 420 and a second fixing portion 430; when the bracket is in the first setting state, the first fixing part 420 is connected with the third fixing part 22 on the housing 20, and the second fixing part 430 is connected with the fourth fixing part 23 on the housing 20; when the stand is in the second setting state, the first fixing portion 420 is connected to the fourth fixing portion 23, and the second fixing portion 430 is connected to the third fixing portion 22. In this way, the bracket can be fixed in the first installation state and the second installation state only by providing the first fixing portion 420 and the second fixing portion 430 on the bracket and providing the third fixing portion 22 and the fourth fixing portion 23 on the housing 20, and the structure is simple.

Further, first fixed part 420 and second fixed part 430 set up the both sides that back on the back of the body at the support respectively, so, only need rotate the support 180 for the both sides position of support is exchanged, can change the setting state of support, the operation of being convenient for.

As shown in fig. 6, specifically, the third fixing portion 22 and the fourth fixing portion 23 of the housing 20 are disposed at an interval, and the filter assembly 10 is disposed between the third fixing portion 22 and the fourth fixing portion 23. When the bracket is in the first setting state, the first fixing portion 420 is fixedly connected with the third fixing portion 22, the second fixing portion 430 is fixedly connected with the fourth fixing portion 23, when the bracket is in the second setting state, the second fixing portion 430 is fixedly connected with the third fixing portion 22, and the first fixing portion 420 is fixedly connected with the fourth fixing portion 23.

More specifically, the first fixing portion 420 and the second fixing portion 430 are both hooks disposed on the bracket, and the third fixing portion 22 and the fourth fixing portion 23 are both anti-releasing hooks disposed on the housing 20. The first fixing part 420 can be clamped with the third fixing part 22 when the bracket is in the first setting state, and can be clamped with the fourth fixing part 23 when the bracket is in the second setting state; the second fixing portion 430 can be clamped with the fourth fixing portion 23 when the bracket is in the first setting state, and can be clamped with the third fixing portion 22 when the bracket is in the second setting state.

In other embodiments, the first fixing portion 420 and the second fixing portion 430 are both magnets disposed on the bracket, and the third fixing portion 22 and the fourth fixing portion 23 are both magnets disposed on the housing 20. The first fixing part 420 can be fixed with the third fixing part 22 by magnetic attraction when the bracket is in the first setting state, and can be fixed with the fourth fixing part 23 by magnetic attraction when the bracket is in the second setting state; the second fixing portion 430 can be magnetically fixed with the fourth fixing portion 23 when the bracket is in the first setting state, and can be magnetically fixed with the third fixing portion 22 when the bracket is in the second setting state.

As shown in fig. 1 and 3, in one embodiment, the first filter member 100 and the second filter member 200 are arranged side by side, and the first filter member 100 and the second filter member 200 are symmetrically arranged with respect to a plane that divides the bracket into two parts having a symmetrical structure with respect to the plane. Thus, the support is rotated by 180 ° only, so that the positions of the first filter 100 and the second filter 200 are interchanged, and the setting state of the support can be changed, thereby facilitating the operation.

As shown in fig. 1 and 3, in one embodiment, the bracket includes a first position-limiting body 300 and a second position-limiting body 400 connected to the first position-limiting body 300, the first position-limiting body 300 and the second position-limiting body 400 are disposed at an interval, and the first filter 100 and the second filter 200 are disposed between the first position-limiting body 300 and the second position-limiting body 400. The first and second position-limiting

bodies

300 and 400 are used for limiting the first and

second filtering members

100 and 200, so as to fix the first and

second filtering members

100 and 200.

Specifically, the second position-limiting body 400 is an upper cover plate, the first position-limiting body 300 is a bottom cover, the upper cover plate and the bottom cover are spaced from each other, and the first filter 100 and the second filter 200 are both disposed between the upper cover plate and the bottom cover.

As shown in fig. 1 and 5, in one embodiment, the bracket further includes a separation body 410, the separation body 410 is disposed between the first position-limiting body 300 and the second position-limiting body 400, the first filter member 100 is disposed on one side of the separation body 410, and the second filter member 200 is disposed on the other side of the separation body 410. The partition 410 is used to partition the first and

second filter members

100 and 200 on both sides of the partition 410, so that the air in the vacuum cleaner does not pass through the first filter member 100 and then the exhaust fan 30 after passing through the second filter member 200, and then is recycled into the exhaust fan 30 when the bracket is in the first arrangement state. Of course, in the second setting of the support, the air in the vacuum cleaner will not be able to pass through the first filter element 100 and then through the second filter element 200 under the action of the suction fan 30 and then be recirculated into the suction fan 30.

As shown in fig. 1, specifically, the separating body 410 is plate-shaped, one end of the separating body 410 is connected to the second position-limiting body 400, one side of the first position-limiting body 300 close to the second position-limiting body 400 is provided with a first mounting groove 330, and one end of the separating body 410 far from the second position-limiting body 400 is inserted into the first mounting groove 330 and connected to the first position-limiting body 300.

More specifically, the separation body 410 and the second position-limiting body 400 are an integral structure, and the separation body 410 is inserted into the first installation groove 330 and then fixed with the first position-limiting body 300 by glue.

Of course, in other embodiments, the separating body 410 can also be connected to the first position-limiting body 300 and the second position-limiting body 400 by a snap or a bolt, respectively.

As shown in fig. 3, specifically, the first filter member 100 is a cylindrical hyppa filter, the first filter member 100 is disposed between the first position-limiting body 300 and the second position-limiting body 400, the first position-limiting body 300 is further provided with a first vent hole 310, and the first vent hole 310 is communicated with an inner space of the first filter member 100; the second filter element 200 is a cylindrical hyppa filter, the second filter element 200 is disposed between the first position-limiting body 300 and the second position-limiting body 400, the first position-limiting body 300 is further provided with a second vent hole 320, and the second vent hole 320 is communicated with the inner space of the second filter element 200.

As shown in fig. 5, the exhaust fan 30 is disposed on a side of the first stopper 300 away from the first filter member 100 and the second filter member 200. When the bracket is in the first setting state, the air exhaust end of the air exhaust fan 30 is communicated with the first ventilation hole 310, the air exhaust end of the air exhaust fan 30 is communicated with the second ventilation hole, air flow in the dust collector can firstly pass through the first filter element 100 to enter the inner space of the first filter element 100, then enters the air exhaust fan 30 through the first ventilation hole 310, then leaves the air exhaust fan 30 from the air exhaust end of the air exhaust fan 30, then enters the inner space of the second filter element 200 through the second ventilation hole 320, and then is discharged out of the dust collector after passing through the second filter element 200. When the support is in the second setting state, the convulsions end and the second through-hole 320 intercommunication of air exhauster 30, the end and the first through-hole intercommunication of airing exhaust of air exhauster 30, the air current in the dust catcher can pass second filter piece 200 earlier and enter into the inner space of second filter piece 200, then the rethread second through-hole 320 enters into air exhauster 30 in, later leave air exhauster 30 from the end of airing exhaust of air exhauster 30 again, later the rethread first through-hole 310 enters into the inner space of first filter piece 100, again discharge the dust catcher after passing first filter piece 100.

As shown in fig. 5, in particular, the vacuum cleaner further comprises a hood 40, the suction fan 30 is arranged in the hood 40, an air inlet channel is formed at the end of the hood 40, an air inlet end of the suction fan 30 is positioned in the air inlet channel, the air inlet channel is used for being communicated with the first vent hole 310 when the bracket is in the first setting state, and the vent channel is used for being communicated with the second vent hole 320 when the bracket is in the second setting state. The rear end of the exhaust fan 30 is further provided with an air outlet pipe 60, the air outlet pipe 60 is communicated with the air outlet end of the exhaust fan 30, the air outlet pipe 60 is used for being communicated with the second ventilation hole 320 when the bracket is in the first setting state, and the air outlet pipe 60 is used for being communicated with the first ventilation hole 310 when the bracket is in the second setting state.

As shown in fig. 3 and 5, the second limiting body 400 is further provided with a first air guiding portion 440, the first filtering member 100 is sleeved outside the first air guiding portion 440, and the first air guiding portion 440 can guide the airflow in the inner space of the first filtering member 100 to the first ventilation hole 310, or guide the airflow entering the inner space of the first filtering member 100 from the first ventilation hole 310 to the inner wall of the first filtering member 100; the second limiting body 400 is further provided with a second air guiding portion 450, the second filter element 200 is sleeved outside the second air guiding portion 450, and the second air guiding portion 450 can guide the air flow in the inner space of the second filter element 200 to the second ventilation hole 320, or guide the air flow entering the inner space of the second filter element 200 from the second ventilation hole 320 to the inner wall of the second filter element 200.

Specifically, the first air guiding portion 440 is opposite to the first vent hole 310, the first air guiding portion 440 is arc-shaped, and the first air guiding portion 440 gradually approaches the first vent hole 310 from the periphery of the first air guiding portion 440 to the center of the first air guiding portion 440. Thus, when the bracket is in the first position, the airflow entering the inner space of the first filter 100 through the first filter 100 flows toward the first vent 310 under the action of the first air guiding portion 440; when the bracket is in the second position, the airflow entering the inner space of the first filter member 100 from the first ventilation hole 310 moves toward the inner wall of the first filter member 100 by the first air guiding portion 440, so that the first filter member 100 filters the airflow.

Of course, in other embodiments, the first air guiding portion 440 may have other shapes such as a "V" shape.

More specifically, the second air guiding portion 450 is opposite to the second air vent 320, the second air guiding portion 450 is arc-shaped, and the second air guiding portion 450 gradually approaches the second air vent 320 from the outer periphery of the second air guiding portion 450 to the center of the second air guiding portion 450. In this manner, when the bracket is in the first position, the air flow entering the inner space of the second filter member 200 from the second vent hole 320 moves toward the inner wall of the second filter member 200, so that the second filter member 200 filters the air flow; when the bracket is in the second position, the airflow entering the inner space of the second filter 200 through the second filter 200 flows toward the second ventilation hole 320 by the second air guiding portion 450.

Of course, in other embodiments, the second air guiding portion 450 may have other shapes such as a "V" shape.

As shown in fig. 1 and 3, in one embodiment, the bracket further includes a handle connected to the second stopper 400 or the first stopper 300, and the handle is used for facilitating the operator to lift the filtering assembly 10.

Specifically, the handle includes a first handle 460 and a second handle 461, the first handle 460 is connected to the first wind guiding portion 440, the first handle 460 is located on a side of the wind guiding portion away from the first ventilation hole 310, the second handle 461 is connected to the second wind guiding portion 450, and the second handle 461 is located on a side of the wind guiding portion away from the second ventilation hole 320. Since the first wind guiding portion 440 is recessed toward the first ventilating hole 310 and the second wind guiding portion 450 is recessed toward the second ventilating hole 320, the first handle 460 is disposed on the first wind guiding portion 440 and the second handle 461 is disposed on the second wind guiding portion 450, so that the filter assembly 10 can be conveniently lifted by an operator.

As shown in fig. 3, in one embodiment, the second limiting member 400 further has a first limiting portion 480, the first limiting portion 480 is spaced apart from the first air guiding portion 440, a first installation space is formed between the first limiting portion 480 and the first air guiding portion 440, and one end of the first filter member 100 extends into the first installation space and is connected to the second limiting member 400.

Specifically, the first limiting portion 480 is a semicircular collar, the first limiting portion 480 is disposed on one side of the second limiting body 400 close to the first limiting body 300, the first limiting portion 480 is disposed outside the first air guiding portion 440, and one end of the first filter member 100 extends into the first mounting space and is fixedly connected to the second limiting body 400 through glue.

Further, the second position-limiting body 400 is further provided with a second position-limiting portion 490, the second position-limiting portion 490 and the second air-guiding portion 450 are arranged at an interval, a second installation space is formed between the second position-limiting portion 490 and the second air-guiding portion 450, and one end of the second filter element 200 extends into the second installation space and is connected with the second position-limiting body 400.

Specifically, the second position-limiting portion 490 is a semicircular clamping ring, the second position-limiting portion 490 is disposed on one side of the second position-limiting body 400 close to the first position-limiting body 300, the second position-limiting portion 490 is disposed outside the second air guiding portion 450, and one end of the second filter element 200 extends into the second installation space and is fixedly connected to the second position-limiting body 400 through glue.

Referring to fig. 1, in one embodiment, a second mounting groove 340 is formed on a side of the first position-limiting body 300 close to the second position-limiting body 400, and an end of the first filter member 100 away from the second position-limiting body 400 is disposed in the second mounting groove 340; a third mounting groove 350 is formed at one side of the first position-limiting body 300 close to the second position-limiting body 400, and one end of the second filter member 200 far from the second position-limiting body 400 is disposed in the third mounting groove 350.

Specifically, the first mounting groove 330 and the second mounting groove 340 are both annular, the end of the first filter member 100 away from the second position-limiting body 400 extends into the second mounting groove 340 and is fixedly connected with the first position-limiting body 300 through glue, and the end of the second filter member 200 away from the second position-limiting body 400 extends into the third mounting groove 350 and is fixedly connected with the first position-limiting body 300 through glue.

As shown in fig. 3 and 5, in one embodiment, the bracket is formed with a first ventilation opening 110 opposite to the first filter member 100 and a second ventilation opening 210 opposite to the second filter member 200;

the filter assembly 10 further comprises a seal member disposed on the bracket and adapted to sealingly engage the housing 20 such that when the bracket is in the first configuration, airflow within the housing 20 enters the first seal member 500 through the first vent 110, and such that when the bracket is in the second configuration, airflow within the housing 20 enters the second seal member 600 through the second vent 210; in this way, the airflow in the housing 20 can be prevented from being directly discharged to the atmosphere without being filtered by the first filter member 100 or the second filter member 200, thereby preventing environmental pollution.

Specifically, the first limiting body 300 and the second limiting body 400 are arranged opposite to each other at intervals and are formed with a first ventilation opening 110 opposite to the first filter piece 100 and a second ventilation opening 210 opposite to the second filter piece 200, the sealing members include a first sealing member 500 and a second sealing member 600, the first sealing member 500 is arranged on the first limiting body 300, the second sealing member 600 is arranged on the second limiting body 400, and both the first sealing member 500 and the second sealing member 600 are hermetically connected with the housing 20.

As shown in fig. 1, more specifically, the first position-limiting body 300 is provided with a first position-limiting groove 360, the second position-limiting body 400 is provided with a second position-limiting groove 470, the first position-limiting body 300 is disposed in the first position-limiting groove 360, and the second position-limiting body 400 is disposed in the second position-limiting groove 470.

As shown in fig. 1 and 6, the first sealing member 500 and the second sealing member 600 are both sealing rings, the first limiting groove 360 and the second limiting groove 470 are both annular, the first sealing member 500 is disposed in the first limiting groove 360 and is used for abutting against the wind shielding wall 21 of the housing 20, and the second sealing member 600 is disposed in the second limiting groove 470 and is used for abutting against the wind shielding wall 21 of the housing 20.

As shown in fig. 5, an embodiment also relates to a vacuum cleaner including: housing 20, suction fan 30, and filter assembly 10 as above; the bracket is detachably arranged on a shell 20 of the dust collector and has a first arrangement state and a second arrangement state; when the stand is in the first setting, the first filter element 100 is located upstream of the suction fan 30 and the second filter element 200 is located downstream of the suction fan 30; when the rack is in the second setting, the first filter element 100 is located downstream of the suction fan 30 and the second filter element 200 is located upstream of the suction fan 30.

In the above-mentioned vacuum cleaner, when the bracket is in the first setting state, since the first filter element 100 is disposed at the upstream of the exhaust fan 30 and the second filter element 200 is disposed at the downstream of the exhaust fan 30, the first filter element 100 filters more dust than the second filter element 200, and the usage rate is high, the first filter element 100 is more easily saturated and fails than the second filter element 200. After filter assembly 10 has been in use for a period of time with the bracket in the first setting, second filter element 200 may be positioned upstream of blower 30 and first filter element 100 may be positioned downstream of blower 30 by switching the bracket to the second setting to extend the life of filter assembly 10 and reduce the frequency of cleaning filter assembly 10 for easier use.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A filter assembly, comprising:

a support;

a first filter element disposed on the bracket; and

a second filter element disposed on the support;

the bracket is detachably arranged on a shell of the dust collector and has a first setting state and a second setting state; when the stand is in the first setting, the first filter element is upstream of an exhaust fan of the vacuum cleaner and the second filter element is downstream of the exhaust fan; when the bracket is in the second setting, the first filter element is located downstream of the suction fan and the second filter element is located upstream of the suction fan.

2. The filter assembly of claim 1, wherein the bracket is provided with a first securing portion and a second securing portion;

3. The filter assembly of claim 2, wherein the first fastening portion and the second fastening portion are disposed on opposite sides of the bracket, the third fastening portion and the fourth fastening portion are disposed on the housing at a distance, and the filter assembly is configured to be disposed between the third fastening portion and the fourth fastening portion;

4. The filter assembly of claim 3, wherein the first and second securing portions are both hooks disposed on the bracket, and the third and fourth securing portions are both anti-drop hooks disposed on the housing;

5. A filter assembly as claimed in claim 1, in which the first and second filter elements are arranged side by side, the first and second filter elements being arranged symmetrically with respect to a plane which divides the carrier into two parts of symmetrical configuration with respect to the plane.

6. The filter assembly of claim 1, wherein the bracket includes a first spacing body and a second spacing body coupled to the first spacing body, the first spacing body and the second spacing body being spaced apart, the first filter element and the second filter element each being disposed between the first spacing body and the second spacing body.

7. The filter assembly of claim 6, wherein the bracket further includes a spacer disposed between the first and second position limiters, the first filter element being positioned on one side of the spacer and the second filter element being positioned on the other side of the spacer.

8. The filter assembly of claim 7, wherein one end of the separating body is connected to the second position-limiting body, a first mounting groove is formed on a side of the first position-limiting body close to the second position-limiting body, and an end of the separating body far away from the second position-limiting body is inserted into the first mounting groove and connected to the first position-limiting body.

9. The filter assembly according to claim 6, wherein the first filter member is a cylindrical structure, the first filter member is disposed between the first position limiting body and the second position limiting body, and the first position limiting body is further provided with a first ventilation hole, and the first ventilation hole communicates with an inner space of the first filter member.

10. The filter assembly according to claim 9, wherein the second position-limiting body further has a first air guiding portion, the first filter element is sleeved outside the first air guiding portion, and the first air guiding portion can guide the airflow in the inner space of the first filter element to the first air vent, or guide the airflow entering the inner space of the first filter element from the first air vent to the inner wall of the first filter element.

11. The filter assembly of claim 10, wherein the first air-guide portion is opposite the first vent hole.

12. The filter assembly of claim 11, wherein the first air-guiding portion gradually approaches the first vent hole in a direction from an outer periphery of the first air-guiding portion to a center of the first air-guiding portion.

13. The filter assembly of claim 12, wherein the first air-guiding portion is arcuate.

14. The filter assembly of claim 10, wherein the second position-limiting body further comprises a first position-limiting portion, the first position-limiting portion is spaced apart from the first air-guiding portion, a first installation space is formed between the first position-limiting portion and the first air-guiding portion, and one end of the first filter element extends into the first installation space and is connected to the second position-limiting body.

15. The filter assembly of claim 14, wherein a second mounting groove is formed in a side of the first position-limiting body adjacent to the second position-limiting body, and an end of the first filter element remote from the second position-limiting body is disposed in the second mounting groove and connected to the first position-limiting body.

16. A filter assembly according to any one of claims 6 to 15, wherein the second filter element is of cylindrical configuration, the second filter element being disposed between the first spacing body and the second spacing body, the first spacing body further being provided with a second vent aperture, the second vent aperture being in communication with the interior space of the second filter element.

17. The filter assembly according to claim 16, wherein the second limiting member further includes a second air guiding portion, the second filter member is sleeved outside the second air guiding portion, and the second air guiding portion is capable of guiding the airflow in the inner space of the second filter member to the second air vent or guiding the airflow entering the inner space of the second filter member from the second air vent to the inner wall of the second filter member.

18. The filter assembly of claim 17, wherein the second air-guide portion is opposite the second vent hole.

19. The filter assembly of claim 18, wherein the second air-guide portion gradually approaches the second vent hole from an outer periphery of the second air-guide portion to a center of the second air-guide portion.

20. The filter assembly of claim 19, wherein the second air-guide portion is arcuate.

21. The filter assembly according to claim 17, wherein the second limiting member further includes a second limiting portion, the second limiting portion is spaced apart from the second air guiding portion, a second installation space is formed between the second limiting portion and the second air guiding portion, and one end of the second filter member extends into the second installation space and is connected to the second limiting member.

22. The filter assembly according to claim 21, wherein a third mounting groove is formed on a side of the first position-limiting body adjacent to the second position-limiting body, and an end of the second filter element remote from the second position-limiting body is disposed in the third mounting groove and connected to the first position-limiting body.

23. The filter assembly of claim 6, wherein the bracket further comprises a handle connected to the second retention body or the first retention body.

24. The filter assembly of claim 1, wherein the bracket is formed with a first vent opening opposite the first filter element and a second vent opening opposite the second filter element;

25. The filter assembly of claim 24, wherein the bracket includes a first spacing body and a second spacing body coupled to the first spacing body, the first spacing body being spaced apart from the second spacing body, the first filter element and the second filter element each being disposed between the first spacing body and the second spacing body;

26. The filter assembly of claim 25, wherein the first position limiting body defines a first position limiting groove, the second position limiting body defines a second position limiting groove, the first sealing member is disposed within the first position limiting groove, and the second sealing member is disposed within the second position limiting groove.

27. A vacuum cleaner, comprising: a housing, an exhaust fan, and a filter assembly as described in any of claims 1-26 above;

the bracket is detachably arranged on a shell of the dust collector and has a first setting state and a second setting state; when the bracket is in the first setting, the first filter element is located upstream of the suction fan and the second filter element is located downstream of the suction fan; when the bracket is in the second setting, the first filter element is located downstream of the suction fan and the second filter element is located upstream of the suction fan.