Vacuum cleaner and its filtering device

Abstract

The present invention relates to a vacuum cleaner and a filtering device thereof. The filtering device includes a housing having a housing cavity and a filtering member fitted in the housing cavity. The filtering member includes a filtering main body and at least two windshields disposed on the outer periphery of the filtering main body. The filtering main body is hollow to form a collection cavity. The at least two windshields are arranged along the circumferential direction of the filtering main body and divide the outer periphery of the filtering main body to form an independent air inlet area and an air outlet area. The vacuum cleaner and the filtering device provided by the present invention have a better air-dust separation effect.

Description

Technical Field

[0001] The present invention relates to the field of intelligent technologies, and particularly to a vacuum cleaner and its filtering device. Background Art

[0002] Vacuum cleaners in the prior art generally include a filtering device, which includes a housing and a filter element received in the housing. The filter element is used to filter the gas inhaled into the housing. However, the filter element in the prior art cannot fully filter the air dust, resulting in poor air-dust separation effect of the vacuum cleaner. Summary of the Invention

[0003] Based on this, it is necessary to provide a vacuum cleaner and its filtering device with better air-dust separation effect in view of the problem of poor air-dust separation effect of the traditional filter element.

[0004] A filtering device, the filtering device includes a housing having a housing cavity and a filter element fitted in the housing cavity. The filter element includes a filter main body and at least two windshields arranged on the outer periphery of the filter main body. The filter main body is hollow to form a collection cavity. At least two windshields are arranged along the circumferential direction of the filter main body, and the outer periphery of the filter main body is separated to form an independent air inlet area and an air outlet area.

[0005] In one embodiment, the housing includes a wind guiding housing, the filtering device includes a wind guiding pipe, the wind guiding housing has an open annular structure and forms an opening at the tail end, and the wind guiding pipe is hermetically fitted to the opening;

[0006] The wind guiding housing is disposed around the filter main body in the air inlet area, and a diversion cavity is formed at an interval between the two;

[0007] The wind guiding housing is provided with wind guiding holes, the filter main body in the air inlet area is provided with primary filtering holes, and the wind guiding holes, the diversion cavity and the primary filtering holes jointly communicate to form an air inlet channel;

[0008] The filter main body in the air outlet area is provided with secondary filtering holes, and the secondary filtering holes and the wind guiding pipe jointly communicate to form an air outlet channel.

[0009] In one embodiment, the aperture of the primary filtering holes is larger than that of the secondary filtering holes.

[0010] In one embodiment, the wind guiding housing is provided with mounting holes, and the filter element is detachably assembled in the wind guiding housing through the mounting holes, and the collection cavity communicates with the diversion cavity.

[0011] In one embodiment, the mounting hole is a stepped hole, and a lapping edge is formed on the outer edge of the filter main body, and the lapping edge is lapped on the hole wall of the stepped hole.

[0012] In one embodiment, the housing includes a plurality of ribs. The air guiding housing includes a bottom wall, a side wall formed by extending from the outer edge of the bottom wall in the same direction, and a top wall opposite to the bottom wall. Each rib is arranged between the top wall and the bottom wall along the axial direction of the filter element, and the plurality of ribs are arranged at intervals along the circumferential direction of the filter element, and the filter element is detachably assembled in the space enclosed by the plurality of ribs.

[0013] In one embodiment, the plurality of ribs are arranged at intervals along the circumferential direction of the filter element outside the air inlet area. Each rib is attached to the outer surface of the filter main body in the air inlet area, and each adjacent pair of ribs divides the corresponding air inlet area into a sub-air inlet area.

[0014] In one embodiment, the filtering device further includes a separating member disposed in the inner cavity of the housing. A separating channel is defined in the separating member; the air guiding hole is formed in the bottom wall and communicates between the separating channel and the guiding cavity.

[0015] In one embodiment, the filtering device further includes a dust removing member disposed in the inner cavity of the housing. The separating member communicates between the dust removing member and the filter element; the dust removing member is hollow to form a dust removing cavity, and a dust removing hole is formed in the side wall of the dust removing member. The dust removing hole, the dust removing cavity and the separating channel are sequentially communicated.

[0016] A vacuum cleaner includes the above filtering device.

[0017] In one embodiment, an exhaust device is further included. The housing includes an air guiding housing, and the filtering device includes an air guiding pipe. The air guiding housing has an open annular structure and forms an opening at the tail end. The air guiding pipe is hermetically connected to the opening and corresponds to and communicates with the air outlet area on the filter main body, and the exhaust device is connected to the air guiding pipe.

[0018] For the above vacuum cleaner and its filtering device, the filter element is connected to the inner cavity of the housing. The setting of the wind blocking wall can prevent the air flow entering the inner cavity of the housing from flowing chaotically, so that the air flow flowing into the inner cavity of the housing sequentially passes through the air inlet area, the collection cavity and the air outlet area, and can be filtered respectively in the air inlet area and the air outlet area. The dust and sundries filtered by the air outlet area are collected in the collection cavity. Compared with the traditional filter element, the filter element in the present application can filter the air flow twice, so that the vacuum cleaner and its filtering device have a better air-dust separation effect. Description of the Drawings

[0019] Figure 1 Structural schematic diagram of a vacuum cleaner in an embodiment of the present invention;

[0020] Figure 2 is Figure 1 Cross-sectional view of the shown vacuum cleaner;

[0021] Figure 3 is Figure 2 Cross-sectional view of the shown vacuum cleaner with the dust removal member and the separation member removed;

[0022] Figure 4 is Figure 2 Structural schematic diagram of the dust removal member in the shown vacuum cleaner;

[0023] Figure 5 is Figure 2 Structural schematic diagram of the separation member in the shown vacuum cleaner;

[0024] Figure 6 is Figure 5 Structural schematic diagram of the separation member in another direction;

[0025] Figure 7 is Figure 2 Structural schematic diagram of the dust collection member in the shown vacuum cleaner;

[0026] Figure 8 is Figure 2 Structural schematic diagram of the air guide housing in the shown vacuum cleaner;

[0027] Figure 9 is Figure 2 Structural schematic diagram of the filter member in the shown vacuum cleaner. Detailed implementation manners

[0028] For ease of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Please refer to Figure 1 , the present invention provides a vacuum cleaner 10. The vacuum cleaner 10 includes a filtering device 11, an exhaust device 13, a power supply device 15 and a holding part 17. The power supply device 15 drives the exhaust device 13 to operate to form a negative suction pressure in the filtering device 11 so that external air flow enters the filtering device 11. The filtering device 11 is used to filter dust and impurities in the air flow. The holding part 17 is used to facilitate the user to hold. In some embodiments, the holding part 17 is a hollow structure, a controller is arranged inside the holding part 17, the controller is electrically connected to the exhaust device 13 and the power supply device 15, and control buttons 170 are arranged on the outer periphery of the holding part 17. When the vacuum cleaner 10 is operating, by pressing the control buttons 170, the controller controls the power supply device 15 to drive the exhaust device 13 to operate. After the vacuuming is completed, by pressing the control buttons 170 again, the vacuum cleaner 10 stops operating.

[0032] The exhaust device 13 and the power supply device 15 are oppositely and spaced apart at opposite ends of the filtering device 11, and air flow exchange can be carried out between the exhaust device 13 and the filtering device 11. The holding part 17 is connected between the exhaust device 13 and the power supply device 15. Based on the axis of the holding part 17, both ends of the axis of the holding part 17 respectively pass through the power supply device 15 and the exhaust device 13.

[0033] Specifically, in the vacuum cleaner 10, the exhaust device 13 and the power supply device 15 are the main weight components of the vacuum cleaner 10, and the holding part 17 is connected between the exhaust device 13 and the power supply device 15. Therefore, the weight of the vacuum cleaner 10 can be more evenly distributed at both ends of the holding part 17, making the center of gravity of the vacuum cleaner 10 closer to the holding part 17. And based on the axis of the holding part 17, both ends of the axis respectively pass through the power supply device 15 and the exhaust device 13. Therefore, the weight of the vacuum cleaner 10 can also be more evenly distributed on both sides of the holding part 17, making the center of gravity of the vacuum cleaner 10 even closer to the holding part 17. Therefore, the vacuum cleaner 10 is more labor-saving when being held and can be easily held.

[0034] When the holding part 17 is connected between the exhaust device 13 and the power supply device 15, in some embodiments, the holding part 17 is inclined relative to the exhaust device 13 and the power supply device 15. The distance from the end of the holding part 17 connected to the power supply device 15 to the filtering device 11 is greater than the distance from the end of the holding part 17 connected to the exhaust device 13 to the filtering device 11. That is, the end of the holding part 17 connected to the exhaust device 13 is closer to the filtering device 11 than the end of the holding part 17 connected to the power supply device 15. This design conforms to the ergonomic setting, which can facilitate the user to hold and is more labor-saving when holding.

[0035] In some other embodiments, the holding part 17 can also be arranged perpendicular to the exhaust device 13 and the power supply device 15.

[0036] Please refer to Figure 2 and Figure 3 , the filtering device 11 includes a housing 110 and a filtering component 112 accommodated in the housing 110. Specifically, the housing 110 has a housing inner cavity 1101, and the filtering component 112 is accommodated in the housing inner cavity 1101. The exhaust device 13 includes an exhaust housing 130 having an exhaust cavity 1301, an exhaust member 132, and a power component 134 that provides electric drive for the exhaust member 132. The exhaust member 132 and the power component 134 are both received in the exhaust cavity 1301. The power supply device 15 includes a power supply housing 150 having a power supply cavity 152 and a power supply component 154 accommodated in the power supply cavity 152. The exhaust housing 130 and the power supply housing 150 are respectively connected to opposite ends of the housing 110 and are located on the same side of the housing 110 to form the housing of the entire vacuum cleaner 10 by splicing. Specifically, the housing 110, the exhaust housing 130, and the power supply housing 150 can be integrally formed or separately formed.

[0037] In the vacuum cleaner 10, the power supply housing 150 is generally arranged at the bottom of the entire vacuum cleaner 10, and the exhaust housing 130 is spaced apart from the power supply housing 150 and is located at the top of the entire vacuum cleaner 10. The housing 110 is located on the left side of the vacuum cleaner 10. According to the principle that users generally operate with their right hands, the holding part 17 is generally located on the right side of the vacuum cleaner 10.

[0038] An air inlet 1102 communicating with the inner cavity 1101 of the housing 110 is formed in the outer wall of the housing 110. An intake pipe 114 is connected to the air inlet 1102 and communicates with the air inlet 1102 to form an intake passage 1141. An exhaust cavity 1301 of the exhaust housing 130 communicates with the inner cavity 1101 of the housing 110, and an exhaust port 1303 communicating with the exhaust cavity 1301 is formed in the exhaust housing 130. The power supply cavity 152 is isolated and independent from the dust collection cavity and the exhaust cavity 1301. Therefore, the power supply assembly 154 accommodated in the power supply cavity 152 can be isolated from external moisture and dust, so as to facilitate the normal operation of the power supply assembly 154. In addition, when the power supply assembly 154 is arranged in the power supply cavity 152, the weight of the entire power supply device 15 can be relatively large. Therefore, the power supply device 15 can be used as a support main body for the entire vacuum cleaner 10. When the vacuum cleaner 10 is not in use, the power supply device 15 is operated to contact an installation surface (such as the ground, a tabletop, etc.), so that the entire vacuum cleaner 10 can be stably installed on the installation surface.

[0039] In some embodiments, the exhaust housing 130 and the power supply housing 150 are arranged in parallel, and both the exhaust housing 130 and the power supply housing 150 are perpendicular to the housing 110. Therefore, the appearance of the entire vacuum cleaner 10 is relatively regular and more aesthetically pleasing. In this specific embodiment, the housing 110 is arranged vertically, and both the exhaust housing 130 and the power supply housing 150 are arranged horizontally. (The horizontal and vertical directions mentioned in the present invention are all based on the horizontal and vertical states shown by the vacuum cleaner 10 Figure 1 i.e., the state when the vacuum cleaner 10 is normally placed on a horizontal plane).

[0040] In some other embodiments, the exhaust housing 110 and the power supply housing 150 may also be arranged obliquely.

[0041] The power assembly 134 is electrically connected to the power supply assembly 154, and the power assembly 134 forms a negative pressure suction force in the inner cavity 1101 of the housing and the exhaust cavity 1301 under the drive of the power supply assembly 154, so that air in the external environment forms an air flow into the inner cavity 1101 of the housing and flows from the inner cavity 1101 through the filter assembly 112 into the exhaust cavity 1301. The filter assembly 112 is used to filter the air flow with dust and sundries, and the filtered dust and sundries are collected in the inner cavity 1101 of the housing. The exhaust member 132 is used to filter the air flow again before the air flow is discharged from the exhaust port 1303 and discharge the filtered clean air flow back into the external environment.

[0042] The power assembly 134 is located between the filter assembly 112 and the exhaust member 132.

[0043] That is, the power component 134 is closer to the filter component 112 than the exhaust component 132. Therefore, the path for the airflow filtered by the filter component 112 to flow to the power component 134 is shorter. The shorter path results in less air loss and less momentum decay of the airflow during the flow to the power component 134. Furthermore, the airflow can still flow to the exhaust component 132 at a relatively fast speed and be discharged to the external environment through the exhaust port 1303 after being filtered by the exhaust component 132. The relatively fast flow speed of the airflow can accelerate the exchange speed of the airflow inside the vacuum cleaner 10 with the outside, thereby effectively improving the working efficiency of the entire vacuum cleaner 10.

[0044] Further, the air inlet end of the power component 134 is connected to the air outlet end of the filter component 112.

[0045] The connection of the air inlet end of the power component 134 to the air outlet end of the filter component 112 can further shorten the airflow path between the filter component 112 and the power component 134, resulting in less air loss of the airflow and further improving the working efficiency of the vacuum cleaner 10. Specifically, the connection of the air inlet end of the power component 134 to the air outlet end of the filter component 112 can be understood as the power component 134 being located outside the filter component 112, and the end face of the air inlet end of the power component 134 abuts against the end face of the air outlet end of the filter component 112, such that the power component 134 and the filter component 112 only overlap at the end face of the air inlet end of the power component 134 and the end face of the air outlet end of the filter component 112. Or, the air inlet end of the power component 134 and the air outlet end of the filter component 112 can be sleeved, such that the power component 134 and the filter component 112 have more overlapping parts. Specifically, the sleeving of the air inlet end of the power component 134 and the air outlet end of the filter component 112 can be understood as the air inlet end of the power component 134 extending into the filter component 112 through the port of the air outlet end of the filter component 112, or the air outlet end of the filter component 112 extending into the power component 134 through the port of the air inlet end of the power component 134.

[0046] Even further, the air outlet end of the filter component 112 is sleeved with the air inlet end of the power component 134.

[0047] Therefore, the airflow flowing out from the air outlet end of the filter component 112 can directly enter the power component 134, resulting in the shortest airflow path between the filter component 112 and the power component 134, the minimum air loss of the airflow, and the high working efficiency of the entire vacuum cleaner 10.

[0048] The axis (b-b) of the power component 134 passes through the air outlet end of the filter component 112 and the air inlet end of the power component 134. The axis (a-a) of the filter component 112 is arranged at an angle with the axis of the power component 134, and the angle (∠β) is less than or equal to 90 degrees.

[0049] Specifically, the air intake direction of the air intake end of the filter assembly 112 (eg Figure 3 The direction of the air outlet of the filter assembly 112 (as shown by arrow c) is perpendicular to the extension direction (Y direction) of the axis (aa) of the filter assembly 112. Figure 3 As shown by arrow d) and the air intake direction of the air intake end of the power assembly 134 (as shown by arrow d) Figure 3 The direction of the airflow in the filter assembly 112 between the air inlet and the air outlet (as shown by arrow d) is the same as the extension direction (X direction) of the axis (bb) of the power assembly 134. Figure 3 The angle between the axis (aa) of the filter assembly 112 and the axis (bb) of the power assembly 134 can be understood as the angle (∠β) between the airflow direction of the filter assembly 112 at the air inlet and air outlet and the air outlet direction of the air outlet of the filter assembly 112, or it can also be understood as the angle (∠β) between the airflow direction of the filter assembly 112 at the air inlet and air outlet and the air inlet direction of the air inlet of the power assembly 134. By setting the axis (aa) of the filter assembly 112 and the axis of the power assembly 134 (bb) to form an angle (∠β), and the angle (∠β) is less than or equal to 90 degrees, the airflow only needs to turn a small angle after passing through the filter assembly 112 to enter the air inlet end of the power assembly 134, thereby effectively reducing the turning wind resistance of the airflow, so that the airflow can still maintain a faster flow rate, so as to improve the working efficiency of the vacuum cleaner 10.

[0050] The power assembly 134 and the exhaust member 132 are spaced apart from each other along the axial direction of the power assembly 134 .

[0051] Generally, the power assembly 134 generates sound waves during operation, and the sound waves are propagated through the flow of airflow. In the present application, by setting the power assembly 134 and the exhaust member 132 to be spaced apart, the propagation path of the sound waves in the exhaust chamber 1301 increases, and the contact frequency between the sound waves and the inner wall of the exhaust housing 130 increases. The sound waves constantly collide with the inner wall of the exhaust chamber 1301, causing the momentum of the sound waves to be greatly attenuated, and the decibel number of the sound waves to be weakened. Furthermore, the sound wave noise discharged from the exhaust port 1303 is relatively small, and the user experience of the vacuum cleaner 10 is also improved accordingly.

[0052] It should be noted that in some other embodiments, the power assembly 134 and the exhaust component 132 may also abut against each other.

[0053] Please refer again Figure 2, the filtering component 112 includes a dust removing member 1121, a separating member 1123, and a filtering member 1125 disposed in the inner cavity 1101 of the housing. The dust removing member 1121, the separating member 1123, and the filtering member 1125 are arranged in sequence along the axial direction of the filtering component 112 from the bottom to the top of the inner cavity 1101 of the housing, and the separating member 1123 is communicated between the dust removing member 1121 and the filtering member 1125. The external air flow sequentially passes through the intake passage 1141, the dust removing member 1121, and the separating member 1123, and the air flow separated by the separating member 1123 enters into the filtering member 1125 and flows into the power component 134 from the air outlet end of the filtering component 11. The dust removing member 1121, the separating member 1123, and the filtering member 1125 can all perform gas-dust separation on the gas..

[0054] Please also refer to Figure 4 , Figure 5 and Figure 9 , the dust removing member 1121 is a cylindrical filter net. The dust removing member 1121 is hollow to form a dust removing cavity 11210, and a dust removing hole 11212 is formed on the side wall of the dust removing member 1121. A separating channel 11230 is formed on the separating member 1123, and the dust removing hole 11212, the dust removing cavity 11210, and the separating channel 11230 are sequentially communicated. Specifically, the dust removing cavity 11210 refers to the space surrounded by the filter net, and this space is a part of the inner cavity 1101 of the housing. The filtering member 1125 includes a filtering main body 11250 and at least two wind blocking walls 11252 arranged on the outer periphery of the filtering main body 11250. The filtering main body 11250 is hollow to form a collecting cavity 11253. The at least two wind blocking walls 11252 are arranged along the circumferential direction of the filtering main body 11250 and separate the outer periphery of the filtering main body 11250 to form an independent air inlet area 11254 and an air outlet area 11255. The air flow is filtered once through the air inlet area 11254 and then filtered again through the air outlet area 11255, and is discharged by the exhaust device 13.

[0055] The following is an explanatory description of the specific flow path of the air flow flowing into and out of the inner cavity 1101 of the housing through specific descriptions. Please also refer to 3 and Figure 6, the air flow entering the inner cavity 1101 of the housing from the air inlet passage 1141, under the action of the power component 134, sequentially passes through the dust removal holes 11212, the dust removal cavity 11210 and the separation passage 11230. Then, the air flow separated by the separation passage 11230 of the separator 1123 enters the collection cavity 11253 from the air inlet region 11254, and then flows into the air inlet end of the power component 134 through the air outlet region 11255. When the air flow passes through the dust removal holes 11212, dust and debris with larger particle sizes are separated from the air flow and collected at the bottom of the inner cavity 1101 of the housing. Then, the air flow flows into the separation passage 11230 from the dust removal cavity 11210 in the direction towards the top of the inner cavity 1101 of the housing. Specifically, the separator 1123 is a cyclone separator, and the separation passage 11230 is formed by enclosing the inner wall of a conical structure. An air inlet 11232 is provided on the side wall of the conical structure, and the air flow flows into the separation passage 11230 from the air inlet 11232, and the air flow and dust and impurities with smaller particle sizes are separated in the separation passage 11230.

[0056] Please also refer to Figure 7, the filtering component 112 further includes a dust collecting member 1127 which is disposed through the dust removal cavity 11210. The opposite ends of the dust collecting member 1127 are respectively abutted against the bottom of the inner cavity 1101 of the housing and the end of the conical structure facing the bottom of the inner cavity 1101 of the housing to support the separating member 1123 and enable self-positioning thereof. A dust collecting hole 11270 is formed at one end of the dust removing member 1121 facing the separating member 1123. A dust collecting cavity 11272 is formed inside the dust collecting member 1127. The dust collecting hole 11270 is aligned and communicated with the opening of the separation channel 11230 facing the bottom of the inner cavity 1101 of the housing. Therefore, the dust and sundries with smaller particle sizes separated from the separation channel 11230 can be collected in the dust collecting cavity 11272 through the dust collecting hole 11270. The air flow separated by the separation channel 11230 continues to flow, and successively flows through the air inlet area 11254, the collection cavity 11253 and the air outlet area 11255, and then flows into the air inlet end of the power component 134 and is discharged from the exhaust port 1303 after passing through the exhaust member 132. The air inlet area 11254 and the air outlet area 11255 respectively perform primary filtration and secondary filtration on the air flow. The dust and sundries separated at the air inlet area 11254 can fall onto the separating member 1123 or be collected at the bottom of the inner cavity 1101 of the housing, etc. The dust and sundries separated at the air outlet area can be collected in the collection cavity 11253. Compared with the traditional filter element 1125, the filter element 1125 in the present application can perform two-stage filtration on the air flow, thus enabling the vacuum cleaner 10 and its filtering device 11 to have a better air-dust separation effect. The setting of the wind blocking wall 11252 can prevent the air flow flowing through the air inlet area 11254 and the air outlet area 11255 from flowing chaotically, so that the air flow must pass through the air inlet area 11254 before flowing through the air outlet area 11255 when flowing through the filter element 1125, so as to ensure that the vacuum cleaner 10 and the filtering device 11 have a better air-dust separation effect.

[0057] Please also refer to Figure 8 and Figure 9, the housing 110 includes a wind guiding housing 110. The filtering device 11 includes a wind guiding pipe 116. The wind guiding housing 110 is in an open annular structure and forms an opening at the tail end. The wind guiding pipe 116 is sealingly connected to the opening and is correspondingly communicated with the air outlet area 11255 on the filtering main body 11250. The power assembly 134 of the exhaust device 13 is connected to one end of the wind guiding pipe 116 away from the air outlet area 11255. The wind guiding housing 110 is disposed around the filtering main body 11250 in the air inlet area 11254, and a diversion cavity 11041 is formed at an interval between the two. The wind guiding housing 110 is provided with a wind guiding hole 11043, and the filtering main body 11250 in the air inlet area 11254 is provided with a primary filtering hole 11256. The wind guiding hole 11043, the diversion cavity 11041 and the primary filtering hole 11256 are jointly communicated to form an air inlet passage. The filtering main body 11250 in the air outlet area 11255 is provided with a secondary filtering hole 11257. The secondary filtering hole 11257 and the wind guiding pipe 116 are jointly communicated to form an air outlet passage.

[0058] Specifically, the housing 110 further includes a main housing 1103. In some embodiments, a housing inner cavity 1101 is formed in the main housing 1103. The wind guiding housing 110 is connected in the main housing 1103 and divides the housing inner cavity 1101 to form a diversion cavity 11041, a separation cavity 1103 and a space for the filter element 1125. In other embodiments, the main housing 1103 can also be docked with the wind guiding housing 110 to form the entire housing 110 structure. A separation cavity 1103 is formed in the main housing 1103. The wind guiding housing 110 is a double-layer structure, and a diversion cavity 11041 and a space for the filter element 1125 are formed in the wind guiding housing 110. The diversion cavity 11041, the separation cavity 1103 and the space provided with the filter element 1125 together constitute the housing inner cavity 1101. The dust removing element 1121 and the separating element 1123 are located in the separation cavity 1103, and the opening of the separation channel 11230 on the separating element 1123 away from the dust collecting element 1127 is communicated with the wind guiding hole 11043. The airflow separated from the separation channel 11230 sequentially passes through the wind guiding hole 11043, the diversion cavity 11041, the primary filtering hole 11256, the collection cavity 11253, the secondary filtering hole 11257 and the wind guiding pipe 116 and enters the air inlet end of the power assembly 134. Specifically, one end of the wind guiding pipe 116 away from the secondary filtering hole 11257 is the air outlet end of the filtering assembly 112.

[0059] By providing the air guiding housing 110, on the one hand, the air inlet channel formed jointly by the air guiding housing 110 and the air inlet area 11254 can guide the airflow, so as to ensure that the airflow flowing out of the separating member 1123 can be introduced into the air inlet area 11254 under the action of the air inlet channel. Compared with the situation where the airflow diffuses everywhere in the inner cavity 1101 of the housing, the provision of the air inlet channel enables the airflow to enter the air inlet area 11254 concentratedly, thus facilitating the improvement of the working efficiency of the vacuum cleaner 10. On the other hand, when the airflow passes through the primary filtration holes 11256 of the filtration main body 11250, the dust and impurities with smaller particle sizes separated can be collected in the diversion cavity 11041 to prevent the dust and impurities from spreading and affecting the dust removal effect of the vacuum cleaner 10.

[0060] Furthermore, the aperture of the primary filtration holes 11256 is larger than that of the secondary filtration holes 11257.

[0061] Compared with the situation where the apertures of the primary filtration holes 11256 and the secondary filtration holes 11257 are equal, by setting the aperture of the primary filtration holes 11256 to be larger than that of the secondary filtration holes 11257, the filtration member 1125 can filter dust and impurities with different particle sizes, enabling the vacuum cleaner 10 to have a better air-dust separation effect.

[0062] The air guiding housing 110 is provided with mounting holes 11044, and the filtration member 1125 is detachably assembled in the air guiding housing 110 through the mounting holes 11044, and the collection cavity 11253 is communicated with the diversion cavity 11041.

[0063] Therefore, the loading and unloading of the filtration member 1125 can be facilitated. When the collection cavity 11253 is filled with dust and debris, the filtration member 1125 can be taken out of the vacuum cleaner 10 from the mounting holes 11044, and after cleaning the filtration member 1125, it can be put back into the air guiding housing 110 for use to prevent the dust from clogging the primary filtration holes 11256 and the secondary filtration holes 11257 and resulting in a poor filtration effect of the filtration member 1125. Specifically, the mounting holes 11044 can be opened on the side wall, top wall or bottom wall of the air guiding housing 110, etc. In this specific embodiment, the mounting holes 11044 are opened on the top wall of the air guiding housing 110, one end of the filtration member 1125 is provided with an opening communicated with the collection cavity 11253, and the opening of the filtration member 1125 is aligned with the position of the mounting holes 11044. When the filtration member 1125 is installed in the air guiding housing 110, the dust and impurities in the filtration member 1125 can be collected at the bottom of the collection cavity 11253 under the action of gravity.

[0064] To facilitate the loading and unloading of the filtration member 1125, a handle 11258 can also be provided at the edge of the opening of the filtration member 1125 to facilitate the user to hold the handle 11258 to operate the installation or disassembly of the filtration member 1125.

[0065] It is worth mentioning that if the housing 110 is formed by the air guiding housing 110 being fitted into the main housing 1103, an assembly opening can be provided at the top end of the main housing 1103, and the cover body covers the assembly opening. When the cover body is disassembled, the dust removal member 1121, the dust collection member 1127, the separation member 1123, the air guiding housing 110, the filter member 1125 and the air duct 116 can be disassembled or installed from the assembly opening. In this way, the simplicity of the assembly of the vacuum cleaner 10 can be improved. If the main housing 1103 and the air guiding housing 110 are mutually butted to form the whole housing 110, a cover body can be provided at the installation hole 11044. The cover body can be opened to assemble the filter member 1125, and covering the cover body can also prevent the dust and impurities collected in the collection cavity 11253 from being blown to the external environment, making the assembly of the vacuum cleaner 10 simple and having a better dust collection effect.

[0066] Furthermore, the installation hole 11044 is a stepped hole, and a lapping edge 11259 is formed on the outer edge of the filter main body 11250, and the lapping edge 11259 is lapped on the hole wall of the stepped hole.

[0067] Specifically, the lapping edge 11259 can be lapped on the hole wall of the stepped hole under the action of gravity. First, it can support and fix the whole filter member 1125, making the installation of the filter member 1125 simpler and more stable. Therefore, it can prevent the filter member 1125 from shaking relative to the housing 110, resulting in the misalignment of the diversion cavity 11041 and the air inlet area 11254, and the misalignment of the air outlet area 11255 and the air duct, which affects the filtering effect of the filter member 1125. Secondly, the setting of the lapping edge 11259 can also facilitate the disassembly of the filter member 1125.

[0068] Even further, the housing 110 includes a plurality of ribs. The air guiding housing 110 includes a bottom wall 11045, a side wall 11046 extending from the outer edge of the bottom wall 11045 in the same direction, and a top wall 11047 opposite to the bottom wall 11045. Each rib is fitted between the top wall 11047 and the bottom wall 11045 along the axial direction of the filter member 1125, and the plurality of ribs are arranged at intervals along the circumference of the filter member 1125. The filter member 1125 is detachably assembled in the space enclosed by the plurality of ribs.

[0069] Specifically, air guiding holes 11043 are formed in the bottom wall 11045, mounting holes 11044 are formed in the top wall 11047, and the bottom wall 11045, the top wall 11047 and the side wall 11046 jointly enclose a diversion cavity 11041. The air guiding holes 11043 communicate between the separation channel 11230 of the separation member 1123 and the diversion cavity 11041. Therefore, the air flow in the air guiding holes 11043 can enter the diversion cavity 11041 along the driving direction of the power assembly 134 under the action of the air guiding holes 11043. In some embodiments, the projections of the top wall 11047 and the side wall 11046 on the bottom wall 11045 may partially cover the bottom wall 11045. In this embodiment, when the filter element 1125 is installed in the air guiding housing 110, the surface of the filter element 1125 facing away from the mounting hole 11044 may be attached to the bottom wall 11045, so that the filter element 1125 can be stably supported on the bottom wall 11045. Alternatively, in some other embodiments, the projections of the top wall 11047 and the side wall 11046 on the bottom wall 11045 may completely cover the bottom wall 11045. In this embodiment, an avoidance hole is formed at a position of the bottom wall 11045 opposite to the mounting hole 11044. When the filter element 1125 is installed in the air guiding housing 110, the filter element 1125 passes through the avoidance hole and the mounting hole 11044.

[0070] By providing a plurality of ribs 1104, the plurality of ribs 1104 have a limiting effect on the installation of the filter element 1125. The filter element 1125 can be stably fixed in the space formed by the enclosure of the ribs 1104, so as to prevent the filter element 1125 from shaking during operation, resulting in the diversion cavity 11041 not being aligned with the air inlet area 11254 and the air outlet area 11255 not being aligned with the air duct 116, thus causing a poor filtering effect of the filter element 1125. Specifically, the space here is only the installation area of the filter element 1125, and this space does not belong to a part of the diversion cavity 11041. This space, the diversion cavity 11041 and the separation cavity 1103 together constitute the inner cavity 1101 of the housing.

[0071] Furthermore, a number of ribs 1104 are arranged at intervals along the circumferential direction of the filter element 1125 outside the air inlet area 11254. Each rib 1104 is attached to the outer surface of the filter main body 11250 of the air inlet area 11254, and each adjacent pair of ribs 1104 divides the corresponding air inlet area 11254 to form a sub-air inlet area 11254.

[0072] Specifically, every two adjacent ribs 1104 can guide the airflow in the diversion cavity 11041, so that the airflow in the diversion cavity 11041 corresponding to each sub-inlet area 11254 can flow from the corresponding sub-inlet area 11254 into the collection cavity 11253. Therefore, the airflow is more orderly and relatively uniform when passing through the inlet area 11254. This not only enables the airflow to pass through the inlet area 11254 faster, so as to improve the working efficiency of the vacuum cleaner 10, but also each sub-inlet area 11254 can filter the airflow, and can also improve the filtering effect of the vacuum cleaner 10.

[0073] In the above-mentioned vacuum cleaner 10, the exhaust device 13 and the power supply device 15 are the main weight components of the vacuum cleaner 10. Since the holding part 17 is connected between the exhaust device 13 and the power supply device 15, therefore, the weight of the vacuum cleaner 10 can be relatively evenly distributed at both ends of the holding part 17, making the center of gravity of the vacuum cleaner 10 closer to the holding part 17. At the same time, with the axis of the holding part 17 as the reference, both ends of the axis pass through the power supply device 15 and the exhaust device 13 respectively. Therefore, the weight of the vacuum cleaner 10 can also be relatively evenly distributed on both sides of the holding part 17, making the center of gravity of the vacuum cleaner 10 closer to the holding part 17. Therefore, the vacuum cleaner 10 is more labor-saving when held and can be conveniently held.

[0074] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0075] The above-mentioned embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A filtering device, characterized in that, The filtering device includes a housing having a housing cavity and a filter element fitted in the housing cavity. The filter element includes a filter main body and at least two windshields arranged on the outer periphery of the filter main body. The filter main body is hollow to form a collection cavity. The at least two windshields are arranged along the circumferential direction of the filter main body and divide the outer periphery of the filter main body into an independent air inlet area and an air outlet area; The filtering device further includes a separation element fitted in the housing cavity and a dust removal element fitted in the housing cavity. A separation channel is formed in the separation element; the separation element is connected between the dust removal element and the filter element; the dust removal element is hollow to form a dust removal cavity, and a dust removal hole is formed in the side wall of the dust removal element. The dust removal hole, the dust removal cavity and the separation channel are connected in sequence; The housing includes a wind guiding housing. The filtering device includes a wind guiding pipe. The wind guiding housing has an open annular structure and forms an opening at the tail end. The wind guiding pipe is hermetically fitted to the opening; The wind guiding housing is annularly arranged outside the filter main body in the air inlet area, and a diversion cavity is formed at an interval between the two; A wind guiding hole is formed in the wind guiding housing, and a primary filtering hole is formed in the filter main body in the air inlet area. The wind guiding hole, the diversion cavity and the primary filtering hole are jointly connected to form an air inlet channel; A secondary filtering hole is formed in the filter main body in the air outlet area. The secondary filtering hole and the wind guiding pipe are jointly connected to form an air outlet channel; The aperture of the primary filtering hole is larger than that of the secondary filtering hole.

2. The filtering device according to claim 1, wherein An installation hole is formed in the wind guiding housing. The filter element is detachably assembled in the wind guiding housing through the installation hole, and the collection cavity is communicated with the diversion cavity.

3. The filtering device according to claim 2, wherein, The installation hole is a stepped hole, and a lapping edge is formed on the outer edge of the filter main body. The lapping edge is lapped on the hole wall of the stepped hole.

4. The filtering device according to any one of claims 1 or 2, characterized in that The housing includes a plurality of ribs. The wind guiding housing includes a bottom wall, a side wall extending from the outer edge of the bottom wall in the same direction, and a top wall opposite to the bottom wall. Each rib is fitted between the top wall and the bottom wall along the axial direction of the filter element, and the plurality of ribs are arranged at intervals along the circumferential direction of the filter element. The filter element is detachably assembled in the space enclosed by the plurality of ribs.

5. The filtering device according to claim 4, characterized in that, The plurality of ribs are arranged at intervals along the circumferential direction of the filter element outside the air inlet area. Each rib is attached to the outer surface of the filter main body in the air inlet area, and each adjacent pair of ribs divides the corresponding air inlet area into a sub-air inlet area.

6. The filtering device according to claim 4, wherein, The wind guiding hole is formed in the bottom wall and is communicated between the separation channel and the diversion cavity.

7. A vacuum cleaner, characterized in that, Including the filtering device according to any one of claims 1 to 6 above.

8. The vacuum cleaner according to claim 7, characterized in that, Further including an exhaust device. The housing includes a wind guiding housing. The filtering device includes a wind guiding pipe. The wind guiding housing has an open annular structure and forms an opening at the tail end. The wind guiding pipe is hermetically fitted to the opening and is correspondingly communicated with the air outlet area on the filter main body. The exhaust device is fitted to the wind guiding pipe.

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