CN110811422B

CN110811422B - Filtering component and dust collector

Info

Publication number: CN110811422B
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: 2025-04-08
Anticipated expiration: 2039-12-03
Also published as: CN110811422A

Abstract

The present invention relates to a filter assembly and a vacuum cleaner, the vacuum cleaner comprising a filter assembly. The filter assembly comprises: a bracket; a first filter element, the first filter element is arranged on the bracket; and a second filter element, the second filter element is arranged on the bracket; wherein the bracket is used to be detachably arranged on the housing of the vacuum cleaner, and the bracket has a first setting state and a second setting state; when the bracket is in the first setting state, the first filter element is located upstream of the exhaust fan of the vacuum cleaner, and the second filter element is located downstream of the exhaust fan; when the bracket is in the second setting state, the first filter element is located downstream of the exhaust fan, and the second filter element is located upstream of the exhaust fan. In the above-mentioned filter assembly, after the filter assembly is used for a period of time when the bracket is in the first setting state, the bracket can be switched to the second setting state to extend the use time of the filter assembly, reduce the cleaning frequency of the filter assembly, and make it 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 filter assembly and a dust collector.

Background

The pre-filter is a critical component in the cleaner for protecting the suction fan, and without the pre-filter dirt and debris can enter the suction fan, affecting the efficiency and performance of the suction fan. In addition, there are also post-filters in the vacuum cleaners for filtering the air stream exiting the suction fan to prevent fine particles from entering the atmosphere.

In the traditional dust collector, the front filter and the rear filter are separately arranged, the front filter is positioned at the front end of the exhaust fan, and compared with the rear filter, the front filter has the advantages of high dust filtering rate, high use ratio, easy saturation and failure, more frequent disassembly for cleaning and inconvenient use.

Disclosure of Invention

Based on this, it is necessary to provide a filter assembly and a cleaner which are convenient to use.

The technical scheme is as follows:

a filter assembly comprises a support, a first filter piece and a second filter piece, wherein the first filter piece is arranged on the support, the second filter piece is arranged on the support, the support is used for being detachably arranged on a shell of a dust collector and is provided with a first setting state and a second setting state, the first filter piece is arranged on the upstream of an exhaust fan of the dust collector when the support is in the first setting state, the second filter piece is arranged on the downstream of the exhaust fan when the support is in the second setting state, and the first filter piece is arranged on the downstream of the exhaust fan when the support is in the second setting state, and the second filter piece is arranged on the upstream of the exhaust fan.

The filter assembly can be applied to a dust collector, and the exhaust fan is used for sucking outside airflow into the dust collector. When the bracket is in a first setting state, air flow pumped into the dust collector passes through the first filter element and is filtered by the first filter element, then the air flow filtered by the first filter element continues to flow into the exhaust fan, and then the air flow coming out of the exhaust fan passes through the second filter element again, and the second filter element is used for filtering the air flow again. When the bracket is in the second setting state, the air flow pumped into the dust collector passes through the second filter element and is filtered by the second filter element, then the air flow filtered by the second filter element continues to flow into the exhaust fan, and then the air flow coming out of the exhaust fan passes through the first filter element again, and the first filter element is used for filtering the air flow again.

In the above-mentioned filter assembly, when the support is in first setting state, because first filter spare sets up the upper reaches at the air exhauster, and the second filter spare sets up the low reaches at the air exhauster, first filter spare is compared in the filterable dust of second filter spare more, and the rate of utilization is high, and first filter spare is compared in the easier saturation of second filter spare and inefficacy. After the filter component 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, so that 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 component is prolonged, the cleaning frequency of the filter component is reduced, and the filter component is more convenient to use.

The technical scheme is further described as follows:

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, the second fixing part is connected with a fourth fixing part on the shell, and 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 intervals, 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 hooks disposed on the bracket, and the third fixing portion and the fourth fixing portion are anti-falling 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 is clamped with the fourth fixing part when the bracket is in the second setting state, and the second fixing part can be clamped with the fourth fixing part when the bracket is in the first setting state, and is clamped with the third fixing part when the bracket is in the second setting state.

In one embodiment, the first filter element and the second filter element are arranged side by side, the first filter element and the second filter element are symmetrically arranged relative to a plane, and the plane divides the bracket into two parts which are symmetrical relative to the plane.

In one embodiment, the support 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 piece and the second filter piece are arranged between the first limiting body and the second limiting body.

In one embodiment, the support further comprises a separator, the separator is disposed between the first limiting body and the second limiting body, the first filter is located at one side of the separator, and the second filter is located at the other side of the separator.

In one embodiment, one end of the separator 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 separator is inserted into the first mounting groove and connected with the first limiting body.

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

In one embodiment, the second limiting body is further provided with a first air guiding part, the first filter is sleeved outside the first air guiding part, and the first air guiding part can guide the air flow in the inner space of the first filter to the first ventilation hole or guide the air flow entering the inner space of the first filter from the first ventilation hole to the inner wall of the first filter.

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

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

In one embodiment, the first wind guiding part is arc-shaped.

In one embodiment, the second limiting body is further provided with a first limiting portion, the first limiting portion and the first air guiding portion are arranged at intervals, a first installation space is formed between the first limiting portion and the first air guiding portion, and one end of the first filtering piece extends into the first installation space and is connected with the second limiting body.

In one embodiment, a second 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 first filtering piece is arranged in the second mounting groove and connected with the first limiting body.

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

In one embodiment, the second limiting body is further provided with a second air guiding part, the second filter is sleeved outside the second air guiding part, and the second air guiding part can guide the air flow in the inner space of the second filter to the second ventilation hole or guide the air flow entering the inner space of the second filter from the second ventilation hole to the inner wall of the second filter.

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

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

In one embodiment, the second wind guiding part 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 intervals, a second installation space is formed between the second limiting portion and the second air guiding portion, and one end of the second filtering piece extends into the second installation space and is connected with the second limiting body.

In one embodiment, a third 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 second filtering piece is arranged in the third mounting groove and connected with the first limiting body.

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

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

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

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

The first limiting body and the second limiting body are arranged oppositely 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 in sealing connection with the shell.

In one embodiment, the first limiting body is provided with a first limiting groove, the second limiting body is provided with a second limiting groove, the first sealing element is arranged in the first limiting groove, and the second sealing element is arranged in the second limiting groove.

The technical scheme also provides the dust collector, which comprises a shell, the exhaust fan and the filtering component, wherein the support is detachably arranged on the shell of the dust collector and is provided with a first setting state and a second setting state, when the support is in the first setting state, the first filtering piece is positioned at the upstream of the exhaust fan, the second filtering piece is positioned at the downstream of the exhaust fan, and when the support is in the second setting state, the first filtering piece is positioned at the downstream of the exhaust fan, and the second filtering piece is positioned at the upstream of the exhaust fan.

In the dust collector, when the support is in the first setting state, as 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 in dust filtered by the second filter piece, the use ratio is high, and the first filter piece is more saturated and is invalid than the second filter piece. After the filter component 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, so that 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 component is prolonged, the cleaning frequency of the filter component is reduced, and the filter component is more convenient to use.

Drawings

FIG. 1 is a schematic view of 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 direction A-A;

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

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

fig. 6 is a schematic diagram showing a partial cross-sectional structure of a vacuum cleaner according to an embodiment of the invention.

Reference numerals illustrate:

10. The filter assembly, 20, the housing, 21, the wind shielding wall, 22, the third fixing portion, 23, the fourth fixing portion, 30, the exhaust fan, 40, the hood, 50, the air inlet duct, 60, the air outlet duct, 70, the duct, 100, the first filter, 110, the first vent, 200, the second filter, 210, the second vent, 300, the first stopper, 310, the first vent, 320, the second vent, 330, the first mounting groove, 340, the second mounting groove, 350, the third mounting groove, 360, the first stopper, 400, the second stopper, 410, the partition, 420, the first fixing portion, 430, the second fixing portion, 440, the first air guiding portion, 450, the second air guiding portion, 460, the first handle, 461, the second handle, 470, the second stopper, 480, the first stopper, 490, the second stopper, 500, the first sealing member, 600, the second sealing member.

Detailed Description

The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples 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 "fixed 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

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. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" in this specification do not denote a particular quantity or order, but rather are used for distinguishing between similar or identical items.

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

As shown in fig. 5, the stand is configured to be detachably disposed on the housing 20 of the cleaner, and has a first disposition state and a second disposition state, wherein the first filter element 100 is located upstream of the suction fan 30 of the cleaner and the second filter element 200 is located downstream of the suction fan 30 when the stand is in the first disposition state, and wherein 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 when the stand is in the second disposition state.

The filter assembly 10 described above may be used in a vacuum cleaner where the suction fan 30 is used to draw an external air flow into the vacuum cleaner. When the bracket is in the first setting state, the air flow drawn into the dust collector passes through the first filter element 100, is filtered by the first filter element 100, then the air flow filtered by the first filter element 100 continues to flow into the exhaust fan 30, and then the air flow discharged from the exhaust fan 30 passes through the second filter element 200, and the second filter element 200 is used for filtering the air flow again. When the bracket is in the second setting state, the air flow drawn into the dust collector passes through the second filter element 200, is filtered by the second filter element 200, then the air flow filtered by the second filter element 200 continues to flow into the exhaust fan 30, and then the air flow discharged from the exhaust fan 30 passes through the first filter element 100 again, and the first filter element 100 is used for filtering the air flow again.

In the above-mentioned filter assembly 10, when the bracket is in the first setting state, since the first filter 100 is disposed upstream of the suction fan 30 and the second filter 200 is disposed downstream of the suction fan 30, the first filter 100 is more dust filtered than the second filter 200, and the usage rate is high, and the first filter 100 is more likely to saturate and fail than the second filter 200. After the filter assembly 10 is used for a period of time with the bracket in the first setting, the bracket can be switched to the second setting, so that the second filter element 200 is positioned upstream of the exhaust fan 30, and the first filter element 100 is positioned downstream of the exhaust fan 30, thereby prolonging the service time of the filter assembly 10, reducing the cleaning frequency of the filter assembly 10 and being more convenient to use.

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

Wherein the first filter element 100 is located upstream of the suction fan 30 of the cleaner, and the second filter element 200 is located downstream of the suction fan 30 means that the air drawn into the 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 being located downstream of the suction fan 30 and the second filter element 200 being located upstream of the suction fan 30 means that the air flow drawn into the cleaner will first flow 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 connected in sequence, and the external air flow sequentially passes through the air inlet pipe 50 and the duct 70 and enters the filter assembly 10.

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, wherein when the bracket is in the first setting state, the first fixing portion 420 is connected with the third fixing portion 22 on the housing 20, the second fixing portion 430 is connected with the fourth fixing portion 23 on the housing 20, and when the bracket is in the second setting state, the first fixing portion 420 is connected with the fourth fixing portion 23, and the second fixing portion 430 is connected with the third fixing portion 22. In this way, only the first fixing portion 420 and the second fixing portion 430 are required to be provided on the bracket, and the third fixing portion 22 and the fourth fixing portion 23 are required to be provided on the housing 20, so that the bracket can be fixed in the first setting state and the second setting state, and the structure is simple.

Further, the first fixing portion 420 and the second fixing portion 430 are respectively disposed on two opposite sides of the support, so that the support is only required to be rotated 180 ° to enable positions of two sides of the support to be interchanged, and the setting state of the support can be changed, so that the operation is convenient.

As shown in fig. 6, specifically, the third fixing portion 22 and the fourth fixing portion 23 on the housing 20 are disposed at intervals, and the filter assembly 10 is disposed between the third fixing portion 22 and the fourth fixing portion 23. The first fixing portion 420 is fixedly connected with the third fixing portion 22 when the bracket is in the first setting state, the second fixing portion 430 is fixedly connected with the fourth fixing portion 23, the second fixing portion 430 is fixedly connected with the third fixing portion 22 when the bracket is in the second setting state, 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 hooks disposed on the bracket, and the third fixing portion 22 and the fourth fixing portion 23 are anti-disengaging hooks disposed on the housing 20. The first fixing portion 420 can be engaged with the third fixing portion 22 when the bracket is in the first setting state and engaged with the fourth fixing portion 23 when the bracket is in the second setting state, and the second fixing portion 430 can be engaged with the fourth fixing portion 23 when the bracket is in the first setting state and engaged 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 magnets disposed on the bracket, and the third fixing portion 22 and the fourth fixing portion 23 are magnets disposed on the housing 20. The first fixing portion 420 is magnetically attracted to and fixed to the third fixing portion 22 when the bracket is in the first setting state, and is magnetically attracted to and fixed to the fourth fixing portion 23 when the bracket is in the second setting state, and the second fixing portion 430 is magnetically attracted to and fixed to the fourth fixing portion 23 when the bracket is in the first setting state, and is magnetically attracted to and fixed to 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 element 100 and the second filter element 200 are disposed side by side, the first filter element 100 and the second filter element 200 are symmetrically disposed with respect to a plane, and the plane divides the bracket into two parts having a symmetrical structure with respect to the plane. Thus, the setting state of the bracket can be changed only by rotating the bracket by 180 degrees, so that the positions of the first filter element 100 and the second filter element 200 are exchanged, and the operation is convenient.

As shown in fig. 1 and 3, in one embodiment, the bracket includes a first limiting body 300 and a second limiting body 400 connected to the first limiting body 300, the first limiting body 300 and the second limiting body 400 are disposed at intervals, and the first filter 100 and the second filter 200 are disposed between the first limiting body 300 and the second limiting body 400. The first limiting body 300 and the second limiting body 400 are used for limiting the first filter element 100 and the second filter element 200, so as to fix the first filter element 100 and the second filter element 200.

Specifically, the second limiting body 400 is an upper cover plate, the first limiting body 300 is a bottom shell, the upper cover plate and the bottom shell are arranged at opposite intervals, and the first filter element 100 and the second filter element 200 are both arranged between the upper cover plate and the bottom shell.

As shown in fig. 1 and 5, in one embodiment, the bracket further includes a separator 410, the separator 410 is disposed between the first limiting body 300 and the second limiting body 400, the first filter 100 is located on one side of the separator 410, and the second filter 200 is located on the other side of the separator 410. The partition 410 is used to separate the first filter 100 and the second filter 200 from each other on two sides of the partition 410, so that when the stand is in the first setting state, the air in the cleaner will not pass through the second filter 200 and then pass through the first filter 100 under the action of the exhaust fan 30, and then be recycled into the exhaust fan 30. Of course, when the stand is in the second setting, the air in the cleaner is not circulated through the second filter element 200 by the suction fan 30 after passing through the first filter element 100, and then into the suction fan 30.

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

More specifically, the partition body 410 and the second limiting body 400 are integrally formed, and the partition body 410 is inserted into the first mounting groove 330 and fixed to the first limiting body 300 by glue.

Of course, in other embodiments, the partition body 410 may be connected to the first limiting body 300 and the second limiting body 400 by means of a buckle or a bolt, respectively.

As shown in fig. 3, specifically, the first filter 100 is a cylindrical-structured hepa filter, the first filter 100 is disposed between the first limiting body 300 and the second limiting body 400, the first limiting body 300 is further provided with a first ventilation hole 310, the first ventilation hole 310 is communicated with the inner space of the first filter 100, the second filter 200 is a cylindrical-structured hepa filter, the second filter 200 is disposed between the first limiting body 300 and the second limiting body 400, the first limiting body 300 is further provided with a second ventilation hole 320, and the second ventilation hole 320 is communicated with the inner space of the second filter 200.

As shown in fig. 5, the exhaust fan 30 is disposed on a side of the first limiting body 300 away from the first filter element 100 and the second filter element 200. When the bracket is in the first setting state, the exhaust end of the exhaust fan 30 is communicated with the first ventilation hole 310, the exhaust end of the exhaust fan 30 is communicated with the second ventilation hole, the air flow in the dust collector firstly passes through the first filter element 100 to enter the inner space of the first filter element 100, then passes through the first ventilation hole 310 to enter the exhaust fan 30, then leaves the exhaust fan 30 from the exhaust end of the exhaust fan 30, then passes through the second ventilation hole 320 to enter the inner space of the second filter element 200, and then is discharged out of the dust collector after passing through the second filter element 200. When the bracket is in the second setting state, the exhaust end of the exhaust fan 30 is communicated with the second ventilation hole 320, the exhaust end of the exhaust fan 30 is communicated with the first through hole, the air flow in the dust collector firstly passes through the second filter element 200 to enter the inner space of the second filter element 200, then enters the exhaust fan 30 through the second ventilation hole 320, then leaves the exhaust fan 30 from the exhaust end of the exhaust fan 30, then enters the inner space of the first filter element 100 through the first ventilation hole 310, and then is discharged out of the dust collector after passing through the first filter element 100.

As shown in fig. 5, specifically, the cleaner further includes a hood 40, the exhaust fan 30 is disposed in the hood 40, an end of the hood 40 forms an air intake passage, an air intake end of the exhaust fan 30 is located in the air intake passage, the air intake passage is used to communicate with the first ventilation hole 310 when the stand is in the first setting state, and the ventilation passage is used to communicate with the second ventilation hole 320 when the stand 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 support 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 support 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 filter 100 is sleeved outside the first air guiding portion 440, the first air guiding portion 440 can guide the air flow in the inner space of the first filter 100 to the first air vent 310 or guide the air flow entering the inner space of the first filter 100 from the first air vent 310 to the inner wall of the first filter 100, the second limiting body 400 is further provided with a second air guiding portion 450, the second filter 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 200 to the second air vent 320 or guide the air flow entering the inner space of the second filter 200 from the second air vent 320 to the inner wall of the second filter 200.

Specifically, the first air guiding portion 440 is opposite to the first ventilation hole 310, the first air guiding portion 440 is arc-shaped, and the first air guiding portion 440 gradually approaches the first ventilation hole 310 from the outer circumference of the first air guiding portion 440 to the center of the first air guiding portion 440. Thus, when the stand is in the first position state, the air flow passing through the first filter element 100 and entering the inner space of the first filter element 100 will flow toward the first vent hole 310 under the action of the first air guide 440, and when the stand is in the second position state, the air flow entering the inner space of the first filter element 100 from the first vent hole 310 will move toward the inner wall of the first filter element 100 under the action of the first air guide 440, so that the first filter element 100 filters the air flow.

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

More specifically, the second wind guiding part 450 is opposite to the second ventilation hole 320, the second wind guiding part 450 is arc-shaped, and the second wind guiding part 450 gradually approaches the second ventilation hole 320 from the outer circumference of the second wind guiding part 450 to the center of the second wind guiding part 450. Thus, when the stand is in the first position state, the air flow entering the inner space of the second filter member 200 from the second air vent hole 320 moves toward the inner wall of the second filter member 200 to cause the second filter member 200 to filter the air flow, and when the stand is in the second position state, the air flow entering the inner space of the second filter member 200 through the second filter member 200 flows toward the second air vent hole 320 by the second air guide 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 coupled to the second spacing body 400 or the first spacing body 300, the handle being configured to facilitate lifting of the filter assembly 10 by an operator.

Specifically, the handles include a first handle 460 and a second handle 461, the first handle 460 is connected with the first air guiding portion 440, the first handle 460 is located at a side of the air guiding portion away from the first ventilation hole 310, the second handle 461 is connected with the second air guiding portion 450, and the second handle 461 is located at a side of the air guiding portion away from the second ventilation hole 320. Because the first air guiding portion 440 is concave towards the first ventilation hole 310, and the second air guiding portion 450 is concave towards the second ventilation hole 320, the operator can conveniently lift the filter assembly 10 by arranging the first handle 460 on the first air guiding portion 440 and the second handle 461 on the second air guiding portion 450.

As shown in fig. 3, in one embodiment, the second limiting body 400 is further provided with a first limiting portion 480, the first limiting portion 480 is disposed at an interval with 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 100 extends into the first installation space and is connected with the second limiting body 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 100 extends into the first installation space and is fixedly connected with the second limiting body 400 through glue.

Further, the second limiting body 400 is further provided with a second limiting portion 490, the second limiting portion 490 is arranged at intervals with the second air guiding portion 450, a second installation space is formed between the second 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 limiting body 400.

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

In one embodiment, as shown in fig. 1, a second mounting groove 340 is formed on a side of the first limiting body 300 close to the second limiting body 400, one end of the first filter element 100, which is far away from the second limiting body 400, is disposed in the second mounting groove 340, a third mounting groove 350 is formed on a side of the first limiting body 300 close to the second limiting body 400, and one end of the second filter element 200, which is far away from the second 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, one end of the first filter element 100, which is far away from the second limiting body 400, extends into the second mounting groove 340 and is fixedly connected with the first limiting body 300 through glue, and one end of the second filter element 200, which is far away from the second limiting body 400, extends into the third mounting groove 350 and is fixedly connected with the first limiting body 300 through glue.

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

The filter assembly 10 further includes a sealing member disposed on the bracket and configured to be in sealing connection with the housing 20, such that when the bracket is in the first setting state, the air flow in the housing 20 enters the first sealing member 500 through the first ventilation opening 110, and such that when the bracket is in the second setting state, the air flow in the housing 20 enters the second sealing member 600 through the second ventilation opening 210, thereby avoiding that the air flow in the housing 20 is directly discharged to the atmosphere after not being filtered by the first filter 100 or the second filter 200, and polluting the environment.

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

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

As shown in fig. 1 and 6, further, the first seal 500 and the second seal 600 are sealing rings, the first limiting groove 360 and the second limiting groove 470 are both annular, the first seal 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 seal 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, one embodiment also relates to a vacuum cleaner comprising a housing 20, a suction fan 30, and a filter assembly 10 as described above, wherein a stand is removably mounted to the housing 20 of the vacuum cleaner, the stand having a first set up condition and a second set up condition, the first filter element 100 being positioned upstream of the suction fan 30, the second filter element 200 being positioned downstream of the suction fan 30 when the stand is in the first set up condition, the first filter element 100 being positioned downstream of the suction fan 30, and the second filter element 200 being positioned upstream of the suction fan 30 when the stand is in the second set up condition.

In the above-mentioned vacuum cleaner, when the bracket is in the first setting state, since the first filter 100 is disposed upstream of the suction fan 30 and the second filter 200 is disposed downstream of the suction fan 30, the first filter 100 is more dust filtered than the second filter 200, and the usage rate is high, and the first filter 100 is more likely to saturate and fail than the second filter 200. After the filter assembly 10 is used for a period of time with the bracket in the first setting, the bracket can be switched to the second setting, so that the second filter element 200 is positioned upstream of the exhaust fan 30, and the first filter element 100 is positioned downstream of the exhaust fan 30, thereby prolonging the service time of the filter assembly 10, reducing the cleaning frequency of the filter assembly 10 and being more convenient to use.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A filter assembly, comprising:

A bracket;

a first filter member disposed on the support, and

The second filter piece is arranged on the bracket;

The support is used for being detachably arranged on a shell of the dust collector, and is provided with a first setting state and a second setting state, wherein when the support is in the first setting state, the first filter element is positioned at the upstream of an exhaust fan of the dust collector, the second filter element is positioned at the downstream of the exhaust fan, and when the support is in the second setting state, the first filter element is positioned at the downstream of the exhaust fan, and the second filter element is positioned at the upstream of the exhaust fan;

The support 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 filtering piece and the second filtering piece are arranged between the first limiting body and the second limiting body;

The first limiting body is also provided with a first ventilation hole which is communicated with the inner space of the first filtering piece, and a second ventilation hole which is communicated with the inner space of the second filtering piece;

The support is provided with a first fixing part and a second fixing part, the first fixing part and the second fixing part are respectively arranged on two opposite sides of the support, the support is rotated for 180 degrees, the positions of the two sides of the support are exchanged, and the setting state of the support is changed.

2. The filter assembly of claim 1, wherein the first securing portion is coupled to a third securing portion on the housing and the second securing portion is coupled to a fourth securing portion on the housing when the bracket is in the first setting, and wherein the first securing portion is coupled to the fourth securing portion and the second securing portion is coupled to the third securing portion when the bracket is in the second setting.

3. The filter assembly of claim 2, wherein the first and second fixing portions are disposed on opposite sides of the bracket, respectively, the third and fourth fixing portions are disposed on the housing at intervals, and the filter assembly is configured to be disposed between the third and fourth fixing portions;

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

5. The filter assembly of claim 1, wherein the first filter element is disposed side-by-side with the second filter element, the first filter element and the second filter element are disposed symmetrically with respect to a plane that divides the bracket into two portions that are symmetrical with respect to the plane.

6. The filter assembly of claim 1, wherein the bracket further comprises a separator disposed between the first and second retainers, the first filter being located on one side of the separator and the second filter being located on the other side of the separator.

7. The filter assembly of claim 6, wherein one end of the separator is connected to the second limiter, a first mounting groove is formed in a side of the first limiter, which is close to the second limiter, and one end of the separator, which is far away from the second limiter, is inserted into the first mounting groove and connected to the first limiter.

8. The filter assembly of claim 1, wherein the first filter is a cylindrical structure, and the first filter is disposed between the first spacing body and the second spacing body.

9. The filter assembly of claim 8, wherein the second limiting body is further provided with a first air guiding part, the first filter is sleeved outside the first air guiding part, and the first air guiding part can guide air flow in the inner space of the first filter to the first ventilation hole or guide air flow entering the inner space of the first filter from the first ventilation hole to the inner wall of the first filter.

10. The filter assembly of claim 9, wherein the first air guide is opposite the first vent.

11. The filter assembly of claim 10, wherein the first air guide portion gradually approaches the first vent hole from an outer periphery of the first air guide portion to a center of the first air guide portion.

12. The filter assembly of claim 11, wherein the first air guide is arcuate.

13. The filter assembly of claim 9, wherein the second limiting body is further provided with a first limiting portion, the first limiting portion is disposed at an interval from the first air guiding portion, a first installation space is formed between the first 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 with the second limiting body.

14. The filter assembly of claim 13, wherein a second mounting groove is formed in a side of the first limiting body adjacent to the second limiting body, and an end of the first filter element away from the second limiting body is disposed in the second mounting groove and connected to the first limiting body.

15. The filter assembly of any of claims 1-14, wherein the second filter is a cylindrical structure, the second filter is disposed between the first spacing body and the second spacing body, the first spacing body is further provided with a second vent, and the second vent is in communication with an interior space of the second filter.

16. The filter assembly of claim 15, wherein the second limiting body is further provided with a second air guiding portion, the second filter is sleeved outside the second air guiding portion, and the second air guiding portion can guide air flow in the inner space of the second filter to the second ventilation hole or guide air flow entering the inner space of the second filter from the second ventilation hole to the inner wall of the second filter.

17. The filter assembly of claim 16, wherein the second air guide is opposite the second air vent.

18. The filter assembly of claim 17, wherein the second air guide portion gradually approaches the second air vent from an outer periphery of the second air guide portion to a center of the second air guide portion.

19. The filter assembly of claim 18, wherein the second air guide is arcuate.

20. The filter assembly of claim 16, wherein the second limiting body is further provided with a second limiting portion, the second limiting portion is spaced 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 element extends into the second installation space and is connected with the second limiting body.

21. The filter assembly of claim 20, wherein a third mounting groove is formed in a side of the first limiting body adjacent to the second limiting body, and an end of the second filter element away from the second limiting body is disposed in the third mounting groove and connected to the first limiting body.

22. The filter assembly of claim 1, wherein the bracket further comprises a handle coupled to the second stop or the first stop.

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

24. The filter assembly of claim 23, wherein 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 and the second filter are arranged between the first limiting body and the second limiting body;

25. The filter assembly of claim 24, wherein the first spacing body has a first spacing groove and the second spacing body has a second spacing groove, the first seal is disposed in the first spacing groove, and the second seal is disposed in the second spacing groove.

26. A vacuum cleaner comprising a housing, an exhaust fan, and a filter assembly according to any one of claims 1 to 25;

The support is detachably arranged on a shell of the dust collector and is provided with a first setting state and a second setting state, when the support is in the first setting state, the first filter element is located at the upstream of the exhaust fan, the second filter element is located at the downstream of the exhaust fan, and when the support is in the second setting state, the first filter element is located at the downstream of the exhaust fan, and the second filter element is located at the upstream of the exhaust fan.