Filter components and vacuum cleaners

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

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to a filter assembly and a vacuum cleaner. Background Art

[0002] The pre-filter is a key component in a vacuum cleaner, used to protect the exhaust fan. Without a pre-filter, dirt and debris may enter the exhaust fan, affecting the efficiency and performance of the exhaust fan. In addition, some vacuum cleaners are also equipped with a post-filter to filter the airflow discharged from the exhaust fan to prevent fine particles in the airflow from entering the atmosphere.

[0003] In traditional vacuum cleaners, the pre-filter and the post-filter are separately arranged, and the pre-filter is located at the front end of the exhaust fan. Compared with the post-filter, the pre-filter filters more dust, has a high usage rate, is easily saturated and fails, and needs to be disassembled more frequently for cleaning, which is inconvenient to use. Summary of the invention

[0004] Based on this, it is necessary to provide a filter assembly and a vacuum cleaner that are easy to use.

[0005] The technical solution is as follows:

[0006] A filter assembly comprises: a bracket; a first filter element, the first filter element being arranged on the bracket; and a second filter element, the second filter element being arranged on the bracket; wherein the bracket is used to be detachably arranged on a housing of a 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.

[0007] The above-mentioned filter assembly can be applied to a vacuum cleaner, and the exhaust fan is used to draw the external airflow into the vacuum cleaner. When the bracket is in the first setting state, the airflow drawn into the vacuum cleaner will first pass through the first filter element and be filtered by the first filter element. After that, the airflow filtered by the first filter element will continue to flow into the exhaust fan, and then the airflow coming out of the exhaust fan will pass through the second filter element, and the second filter element is used to filter the airflow again. When the bracket is in the second setting state, the airflow drawn into the vacuum cleaner will first pass through the second filter element and be filtered by the second filter element. After that, the airflow filtered by the second filter element will continue to flow into the exhaust fan, and then the airflow coming out of the exhaust fan will pass through the first filter element, and the first filter element is used to filter the airflow again.

[0008] In the above-mentioned filter assembly, when the bracket is in the first setting state, since the first filter element is arranged upstream of the exhaust fan and the second filter element is arranged downstream of the exhaust fan, the first filter element filters more dust than the second filter element and has a higher usage rate, and the first filter element is more likely to be saturated and fail than the second filter element. After the filter assembly is used for a period of time with the bracket in the first setting state, the bracket can be switched to the second setting state so that the second filter element is located upstream of the exhaust fan and the first filter element is located downstream of the exhaust fan, so as to extend the use time of the filter assembly, reduce the cleaning frequency of the filter assembly, and make it more convenient to use.

[0009] The technical solution is further described below:

[0010] In one embodiment, the bracket is provided with a first fixing portion and a second fixing portion;

[0011] When the bracket is in the first setting state, the first fixing portion is connected to the third fixing portion on the shell, and the second fixing portion is connected to the fourth fixing portion on the shell; when the bracket is in the second setting state, the first fixing portion is connected to the fourth fixing portion, and the second fixing portion is connected to the third fixing portion.

[0012] In one embodiment, the first fixing portion and the second fixing portion are respectively arranged on opposite sides of the bracket, the third fixing portion and the fourth fixing portion are arranged on the housing at intervals, and the filter assembly is arranged between the third fixing portion and the fourth fixing portion;

[0013] When the bracket is in the first setting state, the first fixing part is fixedly connected to the third fixing part, and the second fixing part is fixedly connected to the fourth fixing part; when the bracket is in the second setting state, the second fixing part is fixedly connected to the third fixing part, and the first fixing part is fixedly connected to the fourth fixing part.

[0014] 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;

[0015] The first fixing portion can be clamped with the third fixing portion when the bracket is in the first setting state, and can be clamped with the fourth fixing portion when the bracket is in the second setting state; the second fixing portion can be clamped with the fourth fixing portion when the bracket is in the first setting state, and can be clamped with the third fixing portion when the bracket is in the second setting state.

[0016] In one embodiment, the first filter element and the second filter element are arranged side by side, and 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 with symmetrical structures relative to the plane.

[0017] In one embodiment, the bracket includes a first limiting body and a second limiting body connected to the first limiting body, the first limiting body and the second limiting body are spaced apart, and the first filter element and the second filter element are both disposed between the first limiting body and the second limiting body.

[0018] In one embodiment, the bracket further includes a separator, wherein the separator is disposed between the first limiting body and the second limiting body, the first filter element is located on one side of the separator, and the second filter element is located on the other side of the separator.

[0019] In one embodiment, one end of the separator is connected to the second limiting body, a first installation groove is provided on a side of the first limiting body close to the second limiting body, and an end of the separator away from the second limiting body is inserted into the first installation groove and connected to the first limiting body.

[0020] In one embodiment, the first filter element is a cylindrical structure, the first filter element is arranged between the first limiting body and the second limiting body, the first limiting body is also provided with a first ventilation hole, and the first ventilation hole is communicated with the inner space of the first filter element.

[0021] In one embodiment, the second limiting body is also provided with a first air guide portion, and the first filter element is mounted outside the first air guide portion. The first air guide portion can guide the airflow in the internal space of the first filter element to the first ventilation hole, or guide the airflow entering the internal space of the first filter element from the first ventilation hole to the inner wall of the first filter element.

[0022] In one embodiment, the first air guiding portion is opposite to the first ventilation hole.

[0023] In one of the embodiments, the first air guide portion gradually approaches the first ventilation hole from the periphery of the first air guide portion to the center of the first air guide portion.

[0024] In one embodiment, the first air guiding portion is arc-shaped.

[0025] In one embodiment, the second limiting body is further provided with a first limiting portion, the first limiting portion is spaced apart from the first air guide portion, and a first installation space is formed between the first limiting portion and the first air guide portion, and one end of the first filter element extends into the first installation space and is connected to the second limiting body.

[0026] In one embodiment, a second mounting groove is provided on a side of the first limiting body close 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.

[0027] In one embodiment, the second filter element is 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 connected to the inner space of the second filter element.

[0028] In one embodiment, the second limiting body is also provided with a second air guide portion, and the second filter element is mounted outside the second air guide portion. The second air guide portion can guide the airflow in the internal space of the second filter element to the second ventilation hole, or guide the airflow entering the internal space of the second filter element from the second ventilation hole to the inner wall of the second filter element.

[0029] In one embodiment, the second air guiding portion is opposite to the second ventilation hole.

[0030] In one of the embodiments, the second air guide portion gradually approaches the second ventilation hole from the outer periphery of the second air guide portion to the center of the second air guide portion.

[0031] In one embodiment, the second air guiding portion is arc-shaped.

[0032] In one embodiment, the second limiting body is further provided with a second limiting portion, the second limiting portion and the second air guide portion are spaced apart, and a second installation space is formed between the second limiting portion and the second air guide portion, and one end of the second filter element extends into the second installation space and is connected to the second limiting body.

[0033] In one embodiment, a third mounting groove is provided on a side of the first limiting body close 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.

[0034] In one embodiment, the bracket further includes a handle connected to the second limiting body or the first limiting body.

[0035] In one embodiment, the bracket is formed with a first vent opposite to the first filter element and a second vent opposite to the second filter element;

[0036] The filter assembly also includes a seal, which is arranged on the bracket and is used to be sealed and connected to the shell, so that when the bracket is in the first setting state, the airflow in the shell enters the first filter element through the first vent, and when the bracket is in the second setting state, the airflow in the shell enters the second filter element through the second vent.

[0037] In one embodiment, the bracket includes a first limiting body and a second limiting body connected to the first limiting body, the first limiting body and the second limiting body are arranged at an interval, and the first filter element and the second filter element are both arranged between the first limiting body and the second limiting body;

[0038] The first limiting body and the second limiting body are arranged opposite to each other and form the first vent and the second vent. The seal includes a first seal and a second seal. The first seal is arranged on the first limiting body, and the second seal is arranged on the second limiting body. Both the first seal and the second seal are sealed and connected to the shell.

[0039] 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 member is arranged in the first limiting groove, and the second sealing member is arranged in the second limiting groove.

[0040] The present technical solution also provides a vacuum cleaner, comprising: a shell, an exhaust fan and the filter assembly as described above; wherein the bracket is detachably arranged on the shell 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, 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.

[0041] In the above-mentioned vacuum cleaner, when the bracket is in the first setting state, since the first filter element is arranged upstream of the exhaust fan and the second filter element is arranged downstream of the exhaust fan, the first filter element filters more dust than the second filter element and has a higher usage rate, and the first filter element is more likely to be saturated and fail than the second filter element. After the filter assembly is used for a period of time with the bracket in the first setting state, the bracket can be switched to the second setting state so that the second filter element is located upstream of the exhaust fan and the first filter element is located downstream of the exhaust fan, so as to extend the use time of the filter assembly, reduce the cleaning frequency of the filter assembly, and make it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the exploded structure of the filter assembly in one embodiment of the present invention;

[0043] Figure 2 is a schematic diagram of a top view of a filter assembly in one embodiment of the present invention;

[0044] Figure 3 for Figure 2 The figure shown is a cross-sectional view along the AA direction;

[0045] Figure 4 for Figure 2 The figure shown is a cross-sectional view along the BB direction;

[0046] Figure 5 A partial cross-sectional view of a vacuum cleaner according to an embodiment of the present invention Figure 1 ;

[0047] Figure 6 A partial cross-sectional view of a vacuum cleaner according to an embodiment of the present invention Figure 2 .

[0048] Description of reference numerals:

[0049] 10. Filter assembly, 20. Shell, 21. Wind shield, 22. Third fixing portion, 23. Fourth fixing portion, 30. Exhaust fan, 40. Cover, 50. Air inlet pipe, 60. Air outlet pipe, 70. Conduit, 100. First filter element, 110. First vent, 200. Second filter element, 210. Second vent, 300. First stopper, 310. First vent, 320. Second vent, 330. First mounting groove, 34 0, second mounting groove, 350, third mounting groove, 360, first limiting groove, 400, second limiting body, 410, separator, 420, first fixing part, 430, second fixing part, 440, first air guide part, 450, second air guide part, 460, first handle, 461, second handle, 470, second limiting groove, 480, first limiting part, 490, second limiting part, 500, first sealing member, 600, second sealing member. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0051] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0053] The “first” and “second” mentioned in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0054] like Figure 1 As shown, a filter assembly 10 according to an embodiment includes a bracket, a first filter element 100 and a second filter element 200. The first filter element 100 and the second filter element 200 are both disposed on the bracket.

[0055] like Figure 5 As shown, the bracket is used to be detachably arranged on the shell 20 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 100 is located upstream of the exhaust fan 30 of the vacuum cleaner, and the second filter element 200 is located downstream of the exhaust fan 30; when the bracket is in the second setting state, the first filter element 100 is located downstream of the exhaust fan 30, and the second filter element 200 is located upstream of the exhaust fan 30.

[0056] The above-mentioned filter assembly 10 can be applied to a vacuum cleaner, and the exhaust fan 30 is used to draw the external airflow into the vacuum cleaner. When the bracket is in the first setting state, 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. After that, the airflow filtered by the first filter element 100 will continue to flow into the exhaust fan 30, and then, the airflow out of the exhaust 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 bracket is in the second setting state, 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. After that, the airflow filtered by the second filter element 200 will continue to flow into the exhaust fan 30, and then, the airflow out of the exhaust fan 30 will pass through the first filter element 100, and the first filter element 100 is used to filter the airflow again.

[0057] In the above-mentioned filter assembly 10, when the bracket is in the first setting state, since the first filter element 100 is arranged upstream of the exhaust fan 30 and the second filter element 200 is arranged downstream of the exhaust fan 30, the first filter element 100 filters more dust than the second filter element 200 and has a higher usage rate, and the first filter element 100 is more likely to be saturated and fail than the second filter element 200. After the filter assembly 10 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 so that the second filter element 200 is located upstream of the exhaust fan 30 and the first filter element 100 is located downstream of the exhaust fan 30, so as to extend the use time of the filter assembly 10, reduce the cleaning frequency of the filter assembly 10, and make it more convenient to use.

[0058] Of course, the filter assembly 10 can also be used in the second setting state for a period of time and then the support is switched to the first setting state for use.

[0059] The first filter element 100 is located upstream of the exhaust fan 30 of the vacuum cleaner, and the second filter element 200 is located downstream of the exhaust fan 30, which means that the airflow drawn into the vacuum cleaner will first flow to the first filter element 100, then flow to the exhaust fan 30, and finally flow to the second filter element 200. The first filter element 100 is located downstream of the exhaust fan 30, and the second filter element 200 is located upstream of the exhaust fan 30, which means that the airflow drawn into the vacuum cleaner will first flow to the second filter element 200, then flow to the exhaust fan 30, and finally flow to the first filter element 100.

[0060] Furthermore, the vacuum cleaner also includes an air inlet pipe 50 and a duct 70 connected in sequence, and the external airflow enters the filter assembly 10 through the air inlet pipe 50 and the duct 70 in sequence.

[0061] like Figure 1 , Figure 6As shown, 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 portion 420 is connected to the third fixing portion 22 on the housing 20, and the second fixing portion 430 is connected to the fourth fixing portion 23 on the housing 20; when the bracket 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, it is only necessary to provide the first fixing portion 420 and the second fixing portion 430 on the bracket, and to provide the third fixing portion 22 and the fourth fixing portion 23 on the housing 20, so as to achieve the fixing of the bracket in the first setting state and the second setting state, and the structure is simple.

[0062] Furthermore, the first fixing portion 420 and the second fixing portion 430 are respectively arranged on opposite sides of the bracket, so that the bracket can be changed in its setting state by simply rotating the bracket 180° so that the positions of the two sides of the bracket are interchanged, which is convenient for operation.

[0063] like Figure 6 As shown, specifically, the third fixing portion 22 and the fourth fixing portion 23 on the housing 20 are arranged at intervals, and the filter assembly 10 is arranged 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 to the third fixing portion 22, and the second fixing portion 430 is fixedly connected to the fourth fixing portion 23. When the bracket is in the second setting state, the second fixing portion 430 is fixedly connected to the third fixing portion 22, and the first fixing portion 420 is fixedly connected to the fourth fixing portion 23.

[0064] 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-drop 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; 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.

[0065] 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 can be magnetically fixed to the third fixing portion 22 when the bracket is in the first setting state, and magnetically fixed to the fourth fixing portion 23 when the bracket is in the second setting state; the second fixing portion 430 can be magnetically fixed to the fourth fixing portion 23 when the bracket is in the first setting state, and magnetically fixed to the third fixing portion 22 when the bracket is in the second setting state.

[0066] like Figure 1 , Figure 3 As shown, in one embodiment, the first filter element 100 and the second filter element 200 are arranged side by side, and the first filter element 100 and the second filter element 200 are arranged symmetrically relative to a plane, and the plane divides the bracket into two parts with symmetrical structures relative to the plane. In this way, the bracket can be changed by simply rotating the bracket 180° so that the positions of the first filter element 100 and the second filter element 200 are interchanged, which is convenient for operation.

[0067] like Figure 1 , Figure 3 As shown, 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 arranged at intervals, and the first filter element 100 and the second filter element 200 are both arranged 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 to limit 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.

[0068] 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 relatively spaced apart, and the first filter element 100 and the second filter element 200 are both arranged between the upper cover plate and the bottom shell.

[0069] like Figure 1 , Figure 5 As shown, in one embodiment, the bracket further includes a separator 410, which is disposed between the first limiting body 300 and the second limiting body 400, the first filter element 100 is located on one side of the separator 410, and the second filter element 200 is located on the other side of the separator 410. The separator 410 is used to separate the first filter element 100 and the second filter element 200 on both sides of the separator 410, so that when the bracket is in the first setting state, the wind in the vacuum cleaner will not pass through the second filter element 200 and then pass through the first filter element 100 under the action of the exhaust fan 30, and then recirculate into the exhaust fan 30. Of course, when the bracket is in the second setting state, the wind in the vacuum cleaner will not pass through the first filter element 100 and then pass through the second filter element 200 under the action of the exhaust fan 30, and then recirculate into the exhaust fan 30.

[0070] like Figure 1 As shown, specifically, the separator 410 is plate-shaped, one end of the separator 410 is connected to the second limiting body 400, a first mounting groove 330 is provided on the 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 to the first limiting body 300.

[0071] More specifically, the separator 410 and the second limiting body 400 are an integral structure. After the separator 410 is inserted into the first mounting groove 330 , it is fixed to the first limiting body 300 by glue.

[0072] Of course, in other embodiments, the separator 410 may also be connected to the first limiting body 300 and the second limiting body 400 respectively by means of buckles or bolts.

[0073] like Figure 3 As shown, specifically, the first filter element 100 is a Hypa filter with a cylindrical structure, and the first filter element 100 is arranged between the first limiting body 300 and the second limiting body 400. The first limiting body 300 is also provided with a first ventilation hole 310, and the first ventilation hole 310 is communicated with the internal space of the first filter element 100; the second filter element 200 is a Hypa filter with a cylindrical structure, and the second filter element 200 is arranged between the first limiting body 300 and the second limiting body 400. The first limiting body 300 is also provided with a second ventilation hole 320, and the second ventilation hole 320 is communicated with the internal space of the second filter element 200.

[0074] like Figure 5 As shown, the exhaust fan 30 is used to be arranged on a side of the first stopper 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 connected to the first ventilation hole 310, and the exhaust end of the exhaust fan 30 is connected to the second through hole. The airflow in the vacuum cleaner will first pass through the first filter element 100 to enter the internal space of the first filter element 100, and then enter the exhaust fan 30 through the first ventilation hole 310, and then leave the exhaust fan 30 from the exhaust end of the exhaust fan 30, and then enter the internal space of the second filter element 200 through the second ventilation hole 320, and then pass through the second filter element 200 and then be discharged from the vacuum cleaner. When the bracket is in the second setting state, the exhaust end of the exhaust fan 30 is connected to the second ventilation hole 320, and the exhaust end of the exhaust fan 30 is connected to the first through hole. The airflow in the vacuum cleaner will first pass through the second filter element 200 to enter the internal space of the second filter element 200, and then enter the exhaust fan 30 through the second ventilation hole 320, and then leave the exhaust fan 30 from the exhaust end of the exhaust fan 30, and then enter the internal space of the first filter element 100 through the first ventilation hole 310, and then exit the vacuum cleaner after passing through the first filter element 100.

[0075] like Figure 5As shown, specifically, the vacuum cleaner further includes a hood 40, the exhaust fan 30 is arranged in the hood 40, the end of the hood 40 forms an air inlet channel, the air inlet end of the exhaust fan 30 is located in the air inlet channel, the air inlet channel is used to communicate with the first ventilation hole 310 when the bracket is in the first setting state, and the ventilation channel is used to communicate with the second ventilation hole 320 when the bracket is in the second setting state. An air outlet pipe 60 is also provided at the rear end of the exhaust fan 30, the air outlet pipe 60 is communicated with the air outlet end of the exhaust fan 30, the air outlet pipe 60 is used to communicate with the second ventilation hole 320 when the bracket is in the first setting state, and the air outlet pipe 60 is used to communicate with the first ventilation hole 310 when the bracket is in the second setting state.

[0076] like Figure 3 , Figure 5 As shown, further, the second limiting body 400 is also provided with a first air guide portion 440, and the first filter element 100 is sleeved outside the first air guide portion 440. The first air guide portion 440 can guide the airflow in the internal space of the first filter element 100 to the first ventilation hole 310, or guide the airflow entering the internal space of the first filter element 100 from the first ventilation hole 310 to the inner wall of the first filter element 100; the second limiting body 400 is also provided with a second air guide portion 450, and the second filter element 200 is sleeved outside the second air guide portion 450. The second air guide portion 450 can guide the airflow in the internal space of the second filter element 200 to the second ventilation hole 320, or guide the airflow entering the internal space of the second filter element 200 from the second ventilation hole 320 to the inner wall of the second filter element 200.

[0077] Specifically, the first air guide portion 440 is opposite to the first ventilation hole 310, the first air guide portion 440 is arc-shaped, and the first air guide portion 440 gradually approaches the first ventilation hole 310 from the periphery of the first air guide portion 440 to the center of the first air guide portion 440. In this way, when the bracket is in the first position state, the airflow entering the inner space of the first filter element 100 through the first filter element 100 will flow toward the first ventilation hole 310 under the action of the first air guide portion 440; when the bracket is in the second position state, the airflow entering the inner space of the first filter element 100 from the first ventilation hole 310 will move toward the inner wall of the first filter element 100 under the action of the first air guide portion 440, so that the first filter element 100 filters the airflow.

[0078] Of course, in other embodiments, the first air guiding portion 440 may also be in other shapes such as a “V” shape.

[0079] More specifically, the second air guide portion 450 is opposite to the second ventilation hole 320, the second air guide portion 450 is arc-shaped, and the second air guide portion 450 gradually approaches the second ventilation hole 320 from the outer periphery of the second air guide portion 450 to the center of the second air guide portion 450. In this way, when the bracket is in the first position state, the airflow entering the inner space of the second filter element 200 from the second ventilation hole 320 will move toward the inner wall of the second filter element 200, so that the second filter element 200 filters the airflow; when the bracket is in the second position state, the airflow entering the inner space of the second filter element 200 through the second filter element 200 will flow toward the second ventilation hole 320 under the action of the second air guide portion 450.

[0080] Of course, in other embodiments, the second air guiding portion 450 may also be in other shapes such as a “V” shape.

[0081] like Figure 1 , Figure 3 As shown, in one embodiment, the bracket further includes a handle connected to the second limiting body 400 or the first limiting body 300, and the handle is used to facilitate the operator to lift the filter assembly 10.

[0082] Specifically, the handle includes a first handle 460 and a second handle 461, wherein the first handle 460 is connected to the first air guide portion 440 and is located on a side of the air guide portion away from the first ventilation hole 310, and the second handle 461 is connected to the second air guide portion 450 and is located on a side of the air guide portion away from the second ventilation hole 320. Since the first air guide portion 440 is concave toward the first ventilation hole 310 and the second air guide portion 450 is concave toward the second ventilation hole 320, by providing the first handle 460 on the first air guide portion 440 and the second handle 461 on the second air guide portion 450, it is convenient for an operator to lift the filter assembly 10.

[0083] like Figure 3 As shown, in one embodiment, the second limiting body 400 is also provided with a first limiting portion 480, and the first limiting portion 480 is spaced apart from the first air guide portion 440, and a first installation space is formed between the first limiting portion 480 and the first air guide portion 440, and one end of the first filter element 100 extends into the first installation space and is connected to the second limiting body 400.

[0084] Specifically, the first limiting portion 480 is a semicircular clamping ring, and the first limiting portion 480 is arranged on a side of the second limiting body 400 close to the first limiting body 300, and the first limiting portion 480 is arranged outside the first air guide portion 440, and one end of the first filter element 100 extends into the first installation space and is fixedly connected to the second limiting body 400 by glue.

[0085] Furthermore, the second limiting body 400 is also provided with a second limiting portion 490, and the second limiting portion 490 and the second air guide portion 450 are arranged at intervals, and a second installation space is formed between the second limiting portion 490 and the second air guide portion 450, and one end of the second filter element 200 extends into the second installation space and is connected to the second limiting body 400.

[0086] Specifically, the second limiting portion 490 is a semicircular clamping ring, and the second limiting portion 490 is arranged on a side of the second limiting body 400 close to the first limiting body 300, and the second limiting portion 490 is arranged outside the second air guide portion 450, and one end of the second filter element 200 extends into the second installation space and is fixedly connected to the second limiting body 400 by glue.

[0087] like Figure 1 In one embodiment, a second mounting groove 340 is provided on a side of the first limiting body 300 close to the second limiting body 400, and an end of the first filter element 100 away from the second limiting body 400 is arranged in the second mounting groove 340; a third mounting groove 350 is provided on a side of the first limiting body 300 close to the second limiting body 400, and an end of the second filter element 200 away from the second limiting body 400 is arranged in the third mounting groove 350.

[0088] Specifically, the first mounting groove 330 and the second mounting groove 340 are both annular, and one end of the first filter element 100 away from the second limiting body 400 extends into the second mounting groove 340 and is fixedly connected to the first limiting body 300 by glue, and one end of the second filter element 200 away from the second limiting body 400 extends into the third mounting groove 350 and is fixedly connected to the first limiting body 300 by glue.

[0089] like Figure 3 , Figure 5 As shown, in one embodiment, the bracket is formed with a first ventilation opening 110 opposite to the first filter element 100 and a second ventilation opening 210 opposite to the second filter element 200;

[0090] The filter assembly 10 also includes a seal, which is arranged on the bracket and is used to be sealed and connected to the shell 20, so that when the bracket is in a first setting state, the airflow in the shell 20 enters the first seal 500 through the first vent 110, and when the bracket is in a second setting state, the airflow in the shell 20 enters the second seal 600 through the second vent 210; in this way, it can be avoided that the airflow in the shell 20 is directly discharged into the atmosphere without being filtered by the first filter element 100 or the second filter element 200, thereby polluting the environment.

[0091] Specifically, the first limiting body 300 and the second limiting body 400 are arranged opposite to each other and form a first ventilation port 110 opposite to the first filter element 100 and a second ventilation port 210 opposite to the second filter element 200. The seal includes a first seal 500 and a second seal 600. The first seal 500 is arranged on the first limiting body 300, and the second seal 600 is arranged on the second limiting body 400. The first seal 500 and the second seal 600 are both sealed and connected to the shell 20.

[0092] like Figure 1 As shown, 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 arranged in the first limiting groove 360 ​​, and the second limiting body 400 is arranged in the second limiting groove 470 .

[0093] like Figure 1 , Figure 6 As shown, further, the first seal 500 and the second seal 600 are both sealing rings, the first limiting groove 360 ​​and the second limiting groove 470 are both annular, the first seal 500 is arranged in the first limiting groove 360 ​​and is used to abut against the wind shield wall 21 of the shell 20, and the second seal 600 is arranged in the second limiting groove 470 and is used to abut against the wind shield wall 21 of the shell 20.

[0094] like Figure 5 As shown, an embodiment also relates to a vacuum cleaner, comprising: a shell 20, an exhaust fan 30 and the filter assembly 10 as above; wherein, the bracket is detachably arranged on the shell 20 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 100 is located upstream of the exhaust fan 30, and the second filter element 200 is located downstream of the exhaust fan 30; when the bracket is in the second setting state, the first filter element 100 is located downstream of the exhaust fan 30, and the second filter element 200 is located upstream of the exhaust fan 30.

[0095] In the above-mentioned vacuum cleaner, when the bracket is in the first setting state, since the first filter element 100 is arranged upstream of the exhaust fan 30 and the second filter element 200 is arranged downstream of the exhaust fan 30, the first filter element 100 filters more dust than the second filter element 200 and has a higher usage rate, and the first filter element 100 is more likely to be saturated and fail than the second filter element 200. After the filter assembly 10 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 so that the second filter element 200 is located upstream of the exhaust fan 30 and the first filter element 100 is located downstream of the exhaust fan 30, so as to extend the use time of the filter assembly 10, reduce the cleaning frequency of the filter assembly 10, and make it more convenient to use.

[0096] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A filter assembly, characterized in that: include: Bracket; a first filter element, wherein the first filter element is disposed on the bracket; and a second filter element, wherein the second filter element is disposed 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; The bracket includes a first limiting body and a second limiting body connected to the first limiting body, the first limiting body and the second limiting body are arranged at a distance, 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 is further provided with a first ventilation hole, the first ventilation hole is communicated with the inner space of the first filter element, and the first limiting body is further provided with a second ventilation hole, the second ventilation hole is communicated with the inner space of the second filter element; The bracket is provided with a first fixing part and a second fixing part, and the first fixing part and the second fixing part are respectively arranged on two opposite sides of the bracket. When the bracket is rotated 180 degrees, the positions of the two sides of the bracket are interchanged, and the setting state of the bracket is changed.

2. The filter assembly according to claim 1, characterized in that: When the bracket is in the first setting state, the first fixing portion is connected to the third fixing portion on the shell, and the second fixing portion is connected to the fourth fixing portion on the shell; when the bracket is in the second setting state, the first fixing portion is connected to the fourth fixing portion, and the second fixing portion is connected to the third fixing portion.

3. The filter assembly according to claim 2, characterized in that: The first fixing portion and the second fixing portion are respectively arranged on opposite sides of the bracket, the third fixing portion and the fourth fixing portion are arranged on the housing at intervals, and the filter assembly is arranged 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 to the third fixing part, and the second fixing part is fixedly connected to the fourth fixing part; when the bracket is in the second setting state, the second fixing part is fixedly connected to the third fixing part, and the first fixing part is fixedly connected to the fourth fixing part.

4. The filter assembly according to claim 3, characterized in that: 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 portion can be clamped with the third fixing portion when the bracket is in the first setting state, and can be clamped with the fourth fixing portion when the bracket is in the second setting state; the second fixing portion can be clamped with the fourth fixing portion when the bracket is in the first setting state, and can be clamped with the third fixing portion when the bracket is in the second setting state.

5. The filter assembly according to claim 1, characterized in that: The first filter element and the second filter element are arranged side by side, and the first filter element and the second filter element are arranged symmetrically relative to a plane, and the plane divides the bracket into two parts with symmetrical structures relative to the plane.

6. The filter assembly according to claim 1, characterized in that: The bracket further includes a separator, which is disposed between the first limiting body and the second limiting body. The first filter element is located on one side of the separator, and the second filter element is located on the other side of the separator.

7. The filter assembly according to claim 6, characterized in that One end of the separator is connected to the second limiting body, a first mounting groove is provided on a side of the first limiting body close to the second limiting body, and one end of the separator away from the second limiting body is inserted into the first mounting groove and connected to the first limiting body.

8. The filter assembly according to claim 1, characterized in that: The first filter element is a cylindrical structure, and the first filter element is arranged between the first limiting body and the second limiting body.

9. The filter assembly according to claim 8, characterized in that: The second limiting body is also provided with a first air guide portion, and the first filter element is mounted outside the first air guide portion. The first air guide portion can guide the airflow in the internal space of the first filter element to the first ventilation hole, or guide the airflow entering the internal space of the first filter element from the first ventilation hole to the inner wall of the first filter element.

10. The filter assembly according to claim 9, characterized in that The first air guiding portion is opposite to the first ventilation hole.

11. The filter assembly according to claim 10, characterized in that The first air guide portion gradually approaches the first ventilation hole in a direction from the outer periphery of the first air guide portion to the center of the first air guide portion.

12. The filter assembly according to claim 11, characterized in that The first air guiding portion is arc-shaped.

13. The filter assembly according to claim 9, characterized in that The second limiting body is also provided with a first limiting portion, the first limiting portion is spaced apart from the first air guiding portion, and 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 to the second limiting body.

14. The filter assembly according to claim 13, characterized in that A second installation groove is provided on one side of the first limiting body close to the second limiting body, and an end of the first filter element away from the second limiting body is arranged in the second installation groove and connected to the first limiting body.

15. The filter assembly according to any one of claims 1 to 14, characterized in that: The second filter element is a cylindrical structure, and the second filter element is arranged between the first limiting body and the second limiting body. The first limiting body is also provided with a second ventilation hole, and the second ventilation hole is connected with the inner space of the second filter element.

16. The filter assembly according to claim 15, characterized in that The second limiting body is also provided with a second air guide portion, and the second filter element is mounted outside the second air guide portion. The second air guide portion can guide the airflow in the internal space of the second filter element to the second ventilation hole, or guide the airflow entering the internal space of the second filter element from the second ventilation hole to the inner wall of the second filter element.

17. The filter assembly according to claim 16, characterized in that The second air guiding portion is opposite to the second ventilation hole.

18. The filter assembly according to claim 17, characterized in that The second air guide portion gradually approaches the second ventilation hole in a direction from the outer periphery of the second air guide portion to the center of the second air guide portion.

19. The filter assembly according to claim 18, characterized in that The second air guiding portion is arc-shaped.

20. The filter assembly according to claim 16, characterized in that The second limiting body is also provided with a second limiting portion, which is spaced apart from the second air guiding portion, and 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 to the second limiting body.

21. The filter assembly according to claim 20, characterized in that A third mounting groove is disposed on one side of the first limiting body close 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 according to claim 1, characterized in that The bracket further includes a handle connected to the second limiting body or the first limiting body.

23. The filter assembly according to claim 1, characterized in that The bracket is formed with a first vent opposite to the first filter element and a second vent opposite to the second filter element; The filter assembly also includes a seal, which is arranged on the bracket and is used to be sealed and connected to the shell, so that when the bracket is in the first setting state, the airflow in the shell enters the first filter element through the first vent, and when the bracket is in the second setting state, the airflow in the shell enters the second filter element through the second vent.

24. The filter assembly according to claim 23, characterized in that The bracket includes a first limiting body and a second limiting body connected to the first limiting body, the first limiting body and the second limiting body are arranged at a distance, 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 arranged opposite to each other and form the first vent and the second vent. The seal includes a first seal and a second seal. The first seal is arranged on the first limiting body, and the second seal is arranged on the second limiting body. Both the first seal and the second seal are sealed and connected to the shell.

25. The filter assembly according to claim 24, characterized in that 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 component is arranged in the first limiting groove, and the second sealing component is arranged in the second limiting groove.

26. A vacuum cleaner, characterized in that: include: A housing, an exhaust fan and a filter assembly as described in any one of claims 1 to 25; Wherein, the bracket is detachably arranged on the shell 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, 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.

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