WO2020015250A1

WO2020015250A1 - Handheld vacuum cleaner

Info

Publication number: WO2020015250A1
Application number: PCT/CN2018/113508
Authority: WO
Inventors: 李冬; 徐远福; 殷雪冰; 杨力
Original assignee: 江苏美的清洁电器股份有限公司
Priority date: 2018-07-18
Filing date: 2018-11-01
Publication date: 2020-01-23

Abstract

A handheld vacuum cleaner (100), comprising: a machine body assembly (1), a pre-filter assembly (2), and an air treatment assembly (3), the machine body assembly (1) comprising a machine housing (11) and a suction motor (12) arranged in the machine housing (11), the pre-filter assembly (2) being arranged in the machine housing (11) and being in fluid communication upstream of the suction motor (12), the longitudinal axis (20) of the pre-filter assembly (2) extending in the transverse direction, the air treatment assembly (3) being arranged in the machine housing (11) and being in fluid communication upstream of the pre-filter assembly (2), and the air treatment assembly (3) comprising a cyclone chamber (301) with an axis (3010) extending in the transverse direction.

Description

Vacuum cleaner

Technical field

The present disclosure relates to the technical field of cleaning equipment, and in particular, to a handheld vacuum cleaner.

Background technique

The hand-held vacuum cleaner in the related art has a large volume, is labor-intensive for hand-holding, and is easy to fall when placed on a desktop.

Public content

The present disclosure aims to solve at least one of the technical problems in the related art.

To this end, an object of the present disclosure is to propose a handheld vacuum cleaner.

A handheld vacuum cleaner according to a first aspect of the present disclosure includes: a body assembly including a casing and a suction motor provided in the casing; a pre-filter assembly provided in the casing And the fluid communication is upstream of the suction motor, and the longitudinal axis of the pre-filter assembly extends in the lateral direction; the air treatment assembly, which is disposed in the casing and is in fluid communication upstream of the pre-filter assembly The air treatment component includes a cyclone cavity with an axis extending in a lateral direction.

The handheld vacuum cleaner according to the present disclosure has a compact structure, good stability, and light weight.

In some embodiments, the pre-filter assembly is detachably mounted on the casing, and the disassembly of the pre-filter assembly does not cause reorganization of the air processing assembly and the casing.

In some embodiments, the air treatment component is detachably installed on the casing, and the disassembly of the air treatment component does not cause recombination of the pre-filter component and the casing.

In some embodiments, the cabinet includes: a handle portion and a mounting portion, the mounting portion is located in front of the handle portion and includes an upper mounting portion and a lower mounting portion, wherein the suction motor is provided on the In the lower mounting portion, the pre-filter assembly is detachably provided in the upper mounting portion, and the air treatment component is detachably disposed between a front of the lower mounting portion and a lower portion of the upper mounting portion.

In some embodiments, the pre-filter assembly is in fluid communication with the suction motor through a first pipe, and a lower end of the first pipe is provided in the lower mounting portion and located above the suction motor and connected to the suction motor. The suction motor is in fluid communication, and an upper end of the first pipe extends to fluid communication with the pre-filter assembly.

In some embodiments, a longitudinal axis of the first duct extends in a vertical direction or is parallel to a longitudinal axis of the handle portion.

In some embodiments, the air treatment assembly is in fluid communication with the pre-filter assembly through a second duct, and a lower end of the second duct is disposed in the lower mounting portion and is in fluid communication with the clean air outlet of the cyclone cavity. An upper end of the second pipe extends to be in fluid communication with the pre-filter assembly.

In some embodiments, a longitudinal axis of the second duct extends in a vertical direction or is parallel to a longitudinal axis of the handle portion.

In some embodiments, the pre-filter assembly is in fluid communication with the suction motor through a first duct, the air treatment assembly is in fluid communication with the pre-filter assembly through a second duct, and the longitudinal axis of the first duct Parallel to the longitudinal axis of the second pipe.

In some embodiments, the pre-filter assembly includes: a pre-filter box and a filter assembly, the pre-filter box is a closed box body except that the outer surface has an inlet and an outlet, and the filter assembly is provided in the A pre-filter box is in fluid communication between the inlet and the outlet.

In some embodiments, the pre-filter assembly includes a primary pre-filter and a secondary pre-filter, the primary pre-filter is in fluid communication upstream of the secondary pre-filter, and the diameter of the primary pre-filter is Larger filter diameter than the secondary pre-filter.

In some embodiments, the primary pre-filter is sleeve-shaped and is sleeved outside the secondary pre-filter, so that all filter holes of the secondary pre-filter are surrounded by the primary pre-filter.

In some embodiments, the primary pre-filter is a piece of filter cotton material, and the secondary pre-filter is a piece of nonwoven material.

In some embodiments, the pre-filter assembly further includes a connecting pipe, one end of which is located in the pre-filter box and extends into the primary pre-filter and communicates with an exhaust passage of the secondary pre-filter. In fluid communication, the other end of the connecting pipe passes through the outlet to the outside of the pre-filter box.

In some embodiments, the longitudinal axis of the pre-filter assembly extends transversely, the inlet is located at the bottom of the pre-filter box, and the outlet is located at one end in the lateral direction of the pre-filter box.

In some embodiments, the setting height of the inlet is lower than the setting height of the outlet, the primary pre-filter is located below the secondary pre-filter, and the filter assembly further includes an inner tube, and the inner A tube is provided in the pre-filter box and embedded in the primary pre-filter, the inlet end of the inner tube is directly connected to the inlet, and the outlet end of the inner tube is directly connected to the primary pre-filter Communication, the secondary pre-filter is in direct communication with the outlet, and the flow direction of the air flow defined by the inner tube is opposite to the flow direction of the air flow at the outlet.

In some embodiments, the primary pre-filter and the secondary pre-filter are detachably connected. 18. The hand-held vacuum cleaner according to any one of claims 1-17, wherein the casing comprises: a handle portion and a mounting portion, the mounting portion is located in front of the handle portion, wherein, along the Projected from the front to the rear, the axis of the suction motor intersects with the acute angle of the longitudinal axis of the handle portion.

In some embodiments, the acute angle α where the axis of the suction motor intersects with the longitudinal axis of the handle portion satisfies: 20 ° ≦ α ≦ 60 °.

In some embodiments, the cabinet includes a handle portion and a mounting portion, the mounting portion is located in front of the handle portion, wherein the axis of the suction motor and the The longitudinal axes of the handle portions are coincident, and the axis of the suction motor extends in a vertical direction or from top to bottom and extends obliquely in a front-to-back direction.

A handheld vacuum cleaner according to a second aspect of the present disclosure includes: a body assembly including a casing and a suction motor provided in the casing; a pre-filter assembly provided in the casing And the fluid communication is upstream of the suction motor; the air treatment component is disposed in the casing and is in fluid communication upstream of the pre-filter component, and the air treatment component includes an axis extending in a lateral direction; In the cyclone cavity, the top surface of the air treatment component is lower than the bottom surface of the pre-filter component.

A handheld vacuum cleaner according to a third aspect of the present disclosure includes: a body assembly including a casing and a suction motor provided in the casing; a pre-filter assembly provided in the casing And the fluid communication is upstream of the suction motor; the air treatment component is provided in the casing and is fluidly connected upstream of the pre-filter component, wherein the pre-filter component is detachably installed To the casing, and the disassembly of the pre-filter assembly will not cause reorganization of the air treatment component and the casing; the air treatment component is detachably installed in the casing, and the air The disassembly and assembly of the processing module will not cause the reassembly of the pre-filter module and the casing.

The hand-held vacuum cleaner according to the present disclosure facilitates cleaning.

A hand-held vacuum cleaner according to a fourth aspect of the present disclosure includes: a body assembly including a casing and a suction motor provided in the casing; a pre-filter assembly provided in the casing And the fluid communication is upstream of the suction motor; the air treatment component is disposed in the casing and is in fluid communication upstream of the pre-filter component, wherein the pre-filter component is provided through the A first pipe in the casing is in fluid communication with the suction motor, and the air treatment assembly is in fluid communication with the pre-filter assembly through a second pipe provided in the casing.

The handheld vacuum cleaner according to the present disclosure has a simple structure, is easy to process, and has high work reliability.

Additional aspects and advantages of the present disclosure will be given in part in the following description, and part of it will become apparent from the following description, or be learned through the practice of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a perspective view of a handheld vacuum cleaner according to an embodiment of the present disclosure;

2 is a front view of the handheld vacuum cleaner shown in FIG. 1;

3 is an exploded view of the handheld vacuum cleaner shown in FIG. 1;

4 is a sectional view of the handheld vacuum cleaner shown in FIG. 1;

5 is a perspective view of a handheld vacuum cleaner according to another embodiment of the present disclosure;

6 is a front view of the handheld vacuum cleaner shown in FIG. 5;

7 is a rear view of the handheld vacuum cleaner shown in FIG. 5;

8 is an exploded view of the handheld vacuum cleaner shown in FIG. 5;

9 is a cross-sectional view of the handheld vacuum cleaner shown in FIG. 5;

10 is a perspective view of the pre-filter assembly shown in FIG. 8;

11 is an exploded view of the pre-filter assembly shown in FIG. 10;

12 is a perspective view of a handheld vacuum cleaner according to still another embodiment of the present disclosure;

13 is a front view of the handheld vacuum cleaner shown in FIG. 12;

14 is an exploded view of the handheld vacuum cleaner shown in FIG. 12;

15 is a sectional view of the hand-held vacuum cleaner shown in FIG. 12;

16 is another cross-sectional view of the handheld vacuum cleaner shown in FIG. 12;

17 is a cross-sectional view of the air treatment module shown in FIG. 15;

18 is another cross-sectional view of the air treatment module shown in FIG. 15;

19 is a front view of an air processing assembly according to an embodiment of the present disclosure;

20 is an exploded view of the air treatment assembly shown in FIG. 19;

21 is a right side view of the air processing module shown in FIG. 19;

22 is a top view of the air treatment module shown in FIG. 19;

23 is a cross-sectional view of the air treatment module shown in FIG. 19;

24 is a test state diagram of a handheld vacuum cleaner according to an embodiment of the present disclosure;

25 is an exploded view of the handheld vacuum cleaner shown in FIG. 24;

26 is a front view of a suction tube assembly according to an embodiment of the present disclosure;

27 is a front view of a suction tube assembly according to another embodiment of the present disclosure;

FIG. 28 is a front view of a suction tube assembly according to still another embodiment of the present disclosure; FIG.

FIG. 29 is a front view of a suction tube assembly according to still another embodiment of the present disclosure; FIG.

FIG. 30 is a cleaning state diagram of a handheld vacuum cleaner according to an embodiment of the present disclosure.

Reference signs:

Hand-held vacuum cleaner 100;

Body component 1; casing 11;

Handle part 111; longitudinal axis 1110; handle rubber 1111;

The mounting section 112; the upper mounting section 1121; the lower mounting section 1122;

Installation cavity 1123; gap 11230; installation gap 1124;

The suction nozzle 113; the inlet air duct 1131; the longitudinal axis 1130; the elbow duct 1132;

The first cover 114; the second cover 115; the exhaust vent 1151;

Suction motor 12; axis 120; first pressing seat 121; second pressing seat 122;

First pipeline 14; longitudinal axis 140; first seal ring 141;

Second pipeline 13; longitudinal axis 130; second seal ring 131;

Exhaust filter 15;

The first locking mechanism 161; the second locking mechanism 162;

The third locking mechanism 163; the fourth locking mechanism 164;

Pre-filter assembly 2; longitudinal axis 20;

Pre-filter box 21; inlet 2101; outlet 2102; box body 211; box cover 212;

Filter assembly 22; primary pre-filter 221;

A two-stage pre-filter 222; a filter hole 2221; an exhaust passage 2222;

Connected pipe 23; inner pipe 24; outer pipe 25;

Air treatment component 3; cyclone cavity 301; axis 3010;

A dust collecting cavity 302; a first cavity portion 3021; a second cavity portion 3022;

Dirty air inlet 303; clean air outlet 304;

Detecting the air vent 306;

Dust cup 31; cup body 311; spacer 312; projection 3121; support 313;

The cup cover 32;

Cyclone separator 33; cone 331; front section 331a; middle section 331b;

The rear section 331c, the air inlet 3310, and the filter 332;

Dust full indicator 4; longitudinal axis 40;

Suction tube assembly 5; elbow 51; suction port 510;

The first pipe section 511; the second pipe section 512;

The transition connection 513; the hose 5131; the connection 5132;

The handle 52;

Switch push button 6; electric control board 7; plug-in terminal 8; flat tube 9; test device 200.

detailed description

Hereinafter, embodiments of the present disclosure will be described in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present disclosure, and should not be construed as limiting the present disclosure.

The following disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. To simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. Furthermore, the present disclosure may repeat reference numbers and / or letters in different examples. This repetition is for the sake of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the applicability of other processes and / or the use of other materials.

Hereinafter, with reference to FIGS. 1 to 30, a handheld vacuum cleaner 100 according to an embodiment of the present disclosure will be described.

As shown in FIGS. 1-4, the handheld vacuum cleaner 100 may include: a body assembly 1, a pre-filter assembly 2, and an air treatment assembly 3. The body assembly 1 includes a casing 11 and a suction motor 12 provided in the casing 11. The filter assembly 2 is disposed on the casing 11 and is in fluid communication upstream of the suction motor 12, and the air treatment assembly 3 is disposed on the casing 11 and is in fluid communication upstream of the pre-filter assembly 2.

That is, the handheld cleaner 100 includes at least three parts: a body assembly 1, a pre-filter assembly 2, and an air treatment assembly 3. Among them, the pre-filter assembly 2 and the air treatment assembly 3 are both installed on the body assembly 1, and the pre-filter assembly 2 is fluid. Connected between the air treatment unit 3 and the suction motor 12, when the suction motor 12 is working, the dirty air outside the handheld cleaner 100 can flow through the air treatment unit 3 and the pre-filter unit 2 into clean air in turn, and then pass through The suction motor 12 is discharged to the outside of the hand-held vacuum cleaner 100, so as to realize the suction and cleaning work.

However, the present disclosure is not limited to this. In other embodiments of the present disclosure, the handheld cleaner 100 may not include the pre-filter assembly 2. At this time, the air treatment assembly 3 is still located upstream of the suction motor 12. During work, the dirty air outside the handheld vacuum cleaner 100 can be converted into clean air by passing through the air handling component 3, and then passed through the suction motor 12 and discharged to the outside of the handheld vacuum cleaner 100, so as to realize the vacuuming and cleaning work.

It should be noted that, in the case where there is no contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification. These combined embodiments or Examples also belong to this disclosure. In addition, it should be noted that the orientations or positional relationships indicated by "up", "down", "front", "rear", "left", "right", and "horizontal" described herein are all based on the handheld The orientation or positional relationship of the vacuum cleaner 100 placed upright on a horizontal plane, where “front” is the side of the handheld vacuum cleaner 100 away from the user when the user uses the handheld vacuum cleaner 100 for cleaning operations, and “rear” is the side of the handheld vacuum cleaner 100 near the user. Side, "horizontal" is horizontal or substantially horizontal.

Hereinafter, a handheld vacuum cleaner 100 according to some specific embodiments of the present disclosure will be described.

In some embodiments of the present disclosure, as shown in FIG. 4, the longitudinal axis 20 of the pre-filter assembly 2 extends in the lateral direction, and the air treatment assembly 3 includes a cyclone cavity 301 in which the axis 3010 extends in the lateral direction. Therefore, it is explained that the pre-filter assembly 2 and the air treatment assembly 3 are both placed horizontally, so that the overall height of the handheld cleaner 100 can be effectively reduced, on the other hand, the height of the center of gravity of the handheld cleaner 100 can be reduced, and the handheld cleaner 100 can be placed on a horizontal surface. On the other hand, because the overall height and center of gravity of the handheld vacuum cleaner 100 can be reduced, the handheld vacuum cleaner 100 can be more portable and labor-saving. Here, it should be noted that the “longitudinal axis” described herein refers to a line extending along the length direction of the corresponding component.

In some embodiments of the present disclosure, as shown in FIG. 2 to FIG. 4, when the pre-filter module 2 and the air processing module 3 are both horizontal, the top surface of the air processing module 3 may be lower than the bottom surface of the pre-filter module 2. That is, the pre-filter module 2 is located directly above or obliquely above the air treatment module 3. Therefore, by using the characteristics that the pre-filter module 2 and the air-handling module 3 are placed horizontally, setting the pre-filter module 2 and the air-handling module 3 in the up-down direction can effectively reduce the lateral length of the entire handheld vacuum cleaner 100, thereby reducing the handheld The volume of the vacuum cleaner 100 can reduce the resistance arm, so that the user can hold it more easily and lightly for cleaning operations. In addition, the hand-held vacuum cleaner 100 with such a structural layout is more concise, so that the air flow path between the air treatment module 3 and the pre-filter module 2 can be shortened, and the energy consumption for suction can be reduced.

In some embodiments of the present disclosure, as shown in FIG. 8 and FIG. 14, the pre-filter assembly 2 is detachably installed on the casing 11, and the disassembly and assembly of the pre-filter assembly 2 does not cause the air treatment assembly 3 and the casing 11. Reorganization. That is, the installation position of the air treatment module 3 does not affect the disassembly and assembly of the pre-filter module 2, and the casing 11 does not include components such as the first cover 114 that affects the disassembly of the pre-filter module 2. In other words, a part of the surface of the pre-filter assembly 2 constitutes a part of the exterior surface of the handheld vacuum cleaner 100, and the pre-filter assembly 2 can be mounted on or detached from the casing 11 through a region defined by the surface of the part.

In this way, there is no need to disassemble the air treatment module 3 from the cabinet 11 in advance, and it is not necessary to disassemble the cabinet 11 in advance (for example, there is no need to open the first cover 114 on the cabinet 11 as shown in FIG. 3), The pre-filter assembly 2 can be removed from the casing 11 or the pre-filter assembly 2 can be installed on the casing 11. Therefore, the disassembly and assembly efficiency of the pre-filter assembly 2 can be effectively improved, which is convenient for users to use and enhances the user experience.

In some embodiments of the present disclosure, as shown in FIG. 3, FIG. 8, and FIG. 14, the air treatment component 3 is detachably installed on the casing 11, and the disassembly and assembly of the air treatment component 3 will not cause reorganization of the casing 11. In addition, when the handheld cleaner 100 includes the pre-filter assembly 2, the disassembly and assembly of the air treatment assembly 3 will not cause the re-assembly of the pre-filter assembly 2. That is, the installation position of the pre-filter module 2 does not affect the disassembly and assembly of the air treatment module 3, and the casing 11 does not include components such as a cover that affects the disassembly and assembly of the air treatment module 3. In other words, a part of the surface of the air treatment component 3 constitutes a part of the exterior surface of the handheld vacuum cleaner 100, and the air treatment component 3 can be mounted to or detached from the casing 11 through a region defined by the surface.

In this way, the steps of disassembling the pre-filter assembly 2 from the cabinet 11 in advance, and the steps of disassembling the cabinet 11 in advance, the air treatment module 3 can be removed from the cabinet 11 or the air treatment module 3 can be installed to On the casing 11. As a result, the disassembly and assembly efficiency of the air treatment module 3 can be effectively improved, which is convenient for users to use and enhances the user experience.

In some embodiments of the present disclosure, as shown in FIGS. 2 and 3, the cabinet 11 may include a handle portion 111 and a mounting portion 112. The mounting portion 112 is located in front of the handle portion 111, and the mounting portion 112 includes an upper mounting portion. 1121 and lower mounting portion 1122. The upper mounting portion 1121 is higher than the lower mounting portion 1122. In conjunction with FIG. 4, the suction motor 12 is provided in the lower mounting portion 1122. The pre-filter assembly 2 is detachably mounted on the upper mounting portion 1121. The air treatment component 3 is detachably provided between the front of the lower mounting portion 1122 and the lower portion of the upper mounting portion 1121. Therefore, the pre-filter module 2 can be disassembled upward and the air treatment module 3 can be disassembled downward, so that the disassembly and assembling of the pre-filter module 2 and the air treatment module 3 can be easily and effectively ensured that they do not affect each other and can be performed independently.

Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the air treatment module 3 may also be disposed above the pre-filter module 2. At this time, the air treatment module 3 may be disposed to be disassembled upward and the pre-filter The component 2 is arranged to be disassembled downward, so that the disassembly and assembly of the pre-filter component 2 and the air treatment component 3 can also be ensured without affecting each other, and can be performed independently.

In some embodiments of the present disclosure, in conjunction with FIG. 4, the pre-filter assembly 2 is in fluid communication with the suction motor 12 through a first pipe 14 provided in the casing 11. Therefore, it is possible to simply and effectively ensure that the airflow flowing from the pre-filter assembly 2 can flow to the suction motor 12 without setting a complicated cavity structure in the casing 11, thereby reducing the processing difficulty of the casing 11 and ensuring that The reliability of the fluid communication between the pre-filter assembly 2 and the suction motor 12 is ensured, and the appearance of the casing 11 is guaranteed to be beautiful.

For example, in the specific example shown in FIG. 4, the lower end of the first pipe 14 is provided in the lower mounting portion 1122 and is located above the suction motor 12 and is in fluid communication with the suction motor 12. The upper end of the first pipe 14 extends to the upper mounting portion. 1121 (as shown in FIGS. 9 and 15) or penetrate into the upper mounting portion 1121 (as shown in FIG. 4) to be in fluid communication with the pre-filter assembly 2. Therefore, the layout of the first pipeline 14 is simple, easy to disassemble and maintain, and has high reliability.

Further, referring to FIG. 4, the longitudinal axis 130 of the first pipe 14 may be parallel to the longitudinal axis 1110 of the handle portion 111 (refer to FIG. 4), thereby making use of space cleverly, facilitating design and layout, and extending the first The air flow path of the duct 14 reduces noise. For example, both the longitudinal axis 1110 of the handle portion 111 and the longitudinal axis 140 of the first duct 14 may extend from top to bottom and obliquely from front to back. Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the longitudinal axis 140 of the first pipe 14 may also extend in the vertical direction (refer to FIGS. 9 and 15), thereby facilitating installation and enabling Shorten the air flow path and reduce the energy consumption of suction.

In some embodiments of the present disclosure, as shown in FIGS. 3 and 4, the air treatment module 3 is in fluid communication with the pre-filter module 2 through a second pipe 13 provided in the cabinet 11. Therefore, it is possible to simply and effectively ensure that the airflow flowing from the air treatment component 3 can flow to the pre-filter component 2 without setting a complicated cavity structure in the casing 11, thereby reducing the processing difficulty of the casing 11 and ensuring that The reliability of the fluid communication between the air treatment component 3 and the pre-filter component 2 ensures the appearance of the casing 11.

For example, in the specific example shown in FIG. 4, the lower end of the second duct 13 may be provided in the lower mounting portion 1122 and in fluid communication with the clean air outlet 304 of the cyclone cavity 301, and the upper end of the second duct 13 extends to the upper mounting portion 1121 (see 9 and 15) or penetrate into the upper mounting portion 1121 (refer to FIG. 4) to be in fluid communication with the pre-filter assembly 2. Therefore, the layout of the second pipe 13 is simple, easy to disassemble and maintain, and has high working reliability.

Further, referring to FIG. 4, the longitudinal axis 130 of the second duct 13 may be parallel to the longitudinal axis 1110 of the handle portion 111, thereby making use of space cleverly, facilitating design and layout, and extending the airflow of the second duct 13. The path reduces noise. For example, the longitudinal axis 1110 of the handle portion 111 and the longitudinal axis 130 of the second duct 13 may extend obliquely from top to bottom and from front to back. Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the longitudinal axis 130 of the second duct 13 may also extend in the vertical direction (refer to FIGS. 9 and 15), thereby facilitating installation and enabling Shorten the air flow path and reduce the energy consumption of suction.

In some embodiments of the present disclosure, as shown in FIGS. 3 and 4, when the pre-filter assembly 2 is in fluid communication with the suction motor 12 through the first duct 14, and the air treatment assembly 3 is in communication with the pre-filter assembly through the second duct 13 When in fluid communication, the longitudinal axis 140 of the first pipe 14 may be parallel to the longitudinal axis 130 of the second pipe 13. Thereby, the compactness of the layout of the first duct 14 and the second duct 13 can be improved, the space utilization rate can be improved, and the handheld vacuum cleaner 100 can be more compact and easy to hold.

In some embodiments of the present disclosure, as shown in FIG. 16, the axis 120 (that is, the rotation axis of the rotor of the suction motor 12) of the suction motor 12 may be projected along the front-to-rear direction with respect to the longitudinal direction of the handle portion 111. The axis 1110 intersects an acute angle α. As a result, the space occupied by the suction motor 12 in the vertical direction can be reduced, so that the height of the center of gravity of the handheld cleaner 100 is reduced, thereby further reducing the center of gravity of the handheld cleaner 100, making it more stable when placed on a horizontal plane and having better work stability , And more convenient for handheld operation.

As shown in FIG. 16, the acute angle α where the axis 120 of the suction motor 12 intersects with the longitudinal axis 1110 of the handle portion 111 may satisfy: 20 ° ≦ α ≦ 60 °, that is, the axis 120 of the suction motor 12 and the handle portion 111 The minimum included angle between the longitudinal axis 1110 may be 20 °, and the maximum may be 60 °, such as 20 °, 30 °, 40 °, 50 °, 60 °, and so on. Thereby, the occupation space of the suction motor 12 in the horizontal direction (as shown in the left-right direction shown in FIG. 16) can be reduced, so that the volume of the handheld vacuum cleaner 100 is smaller, which is convenient for the user to carry out the operation by hand.

Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the axis 120 of the suction motor 12 may also coincide with the longitudinal axis 1110 of the handle portion 111 when projected from the front to the rear, that is, α = 0. °. This facilitates the positioning and installation of the suction motor 12 and improves the working reliability of the suction motor 12.

In some embodiments of the present disclosure, when the axis 120 of the suction motor 12 coincides with the longitudinal axis 1110 of the handle portion 111 when projected in a front-to-back direction, as shown in FIG. 4, the axis 120 of the suction motor 12 It can also extend obliquely from top to bottom and from front to back. For example, the axis 120 of the suction motor 12 can also be parallel to the longitudinal axis 1110 of the handle portion 111. Therefore, the layout of the suction motor 12 can effectively use the space. When the air processing module 3 is installed in front of the suction motor 12, the layout of the suction motor 12 can provide more installation space for the air processing module 3. On the premise that the air treatment component 3 is fixed at the front end, the volume can be extended backward as far as possible, so that the volume of the cyclone cavity 301 and / or the dust collection cavity 302 of the air treatment component 3 can be increased, thereby improving the air treatment component 3 Effect. In addition, in other embodiments of the present disclosure, as shown in FIG. 9, the axis 120 of the suction motor 12 may also be set completely vertically, thereby facilitating installation and layout.

Next, a pre-filter assembly 2 according to an embodiment of the present disclosure is described.

In some embodiments of the present disclosure, as shown in FIGS. 8 to 11, the pre-filter assembly 2 may include: a pre-filter box 21 and a filter assembly 22. In addition to the appearance of the pre-filter box 21, the pre-filter box 21 has an inlet 2101 and an outlet 2102. The outside is a closed box, that is, when the existence of the inlet 2101 and the outlet 2102 is not considered, the pre-filter box 21 is a closed box, and the filter assembly 22 is provided in the pre-filter box 21 and is in fluid communication between the inlet 2101 and the outlet 2102. between.

Therefore, since the filter assembly 22 is located in the closed pre-filter box 21, the pre-filter assembly 2 can be an independent module, and a part of its surface can constitute the appearance surface of the handheld cleaner 100, so that the disassembly and assembly of the pre-filter assembly 2 is not required. This will cause reorganization of the air treatment module 3 and the cabinet 11. Moreover, since the filter assembly 22 is provided in the pre-filter box 21, during the process of removing the pre-filter box 21 from the cabinet 11, the filter module 22 can be detached from the cabinet 11 at the same time, During the process of installing the filter box 21 on the casing 11, the filter assembly 22 can also be installed on the casing 11, which effectively improves the overall disassembly efficiency of the pre-filter assembly 2 and facilitates user operation.

In other words, when the user disassembles the pre-filter assembly 2 from the body assembly 1, the user does not need to directly touch the filter assembly 22 with his hands, or the filter assembly 22 is not exposed, so that secondary pollution can be avoided. To be more straightforward, suppose that the pre-filter assembly 2 does not include the pre-filter box 21 and only includes the filter assembly 22, as shown in the example shown in FIG. 3. When the filter assembly 22 needs to be removed and cleaned, the user needs to first place the casing 11 on The first cover 114 is opened to expose the filter assembly 22, and then the filter assembly 22 is directly taken out of the installation cavity 1123 of the upper mounting portion 1121 by hand, and the filter assembly 22 is moved to a pool or a trash can for cleaning. Since the filter assembly 22 is directly exposed to the environment and moved, during the movement of the filter assembly 22, dirt and other dirt attached to it will inevitably fall into the environment, which will cause secondary pollution.

However, when the pre-filter module 2 includes a pre-filter box 21 containing the filter module 22, as shown in the example shown in FIGS. 8-11, when the user needs to take out the filter module 22 for cleaning, it is only necessary to remove the pre-filter box 21 from the casing. Take off the top 11 and then move the pre-filter box 21 to the pool or trash can, then open the pre-filter box 21 and take out the filter assembly 22 for cleaning. In this way, because the pre-filter box 21 is a closed box, The problem of dust falling into the environment does not occur during the transfer process, so secondary pollution can be effectively avoided.

In addition, when the filter assembly 22 includes a plurality of pre-filters, such as a primary pre-filter 221 and a secondary pre-filter 222, if the pre-filter assembly 2 does not include the pre-filter box 21, as shown in the example shown in Figs. In the process of the assembly 22, multiple removal operations, such as the operation of individually removing the primary pre-filter 221 and the operation of individually removing the secondary pre-filter 222, are tedious and time-consuming. When the pre-filter module 2 includes a pre-filter box 21 containing the filter module 22, as shown in the example shown in FIG. 8 to FIG. 11, if the filter module 22 needs to be removed, the action of removing the pre-filter box 21 only needs to be removed once. The primary pre-filter 221 and the secondary pre-filter 222 are removed together, thereby simplifying operations.

Similarly, if the pre-filter assembly 2 does not include the pre-filter box 21, as shown in the example shown in FIGS. 3-4, during the process of installing the filter assembly 22, multiple installation actions are required, such as separately installing the primary pre-filter 221. The action and the action of separately installing the secondary pre-filter 222 are tedious and time-consuming, and the primary pre-filter 221 and the secondary pre-filter 222 are easily installed reversely. When the pre-filter module 2 includes a pre-filter box 21 containing the filter module 22, as shown in the example shown in FIG. 8 to FIG. 11, if the filter module 22 needs to be installed, only one action of installing the pre-filter box 21 is required to make one The stage pre-filter 221 and the stage two pre-filter 222 are installed together, thereby simplifying the operation and avoiding the problem that the stage one pre-filter 221 and the stage two pre-filter 222 are reversed. In order to explain more clearly how to save time and effort, the following uses the application scenarios of FIG. 3 and FIG. 8 as examples for comparison and description.

In the example of FIG. 3, if the filter assembly 22 needs to be cleaned, the user needs one hand to perform the three actions of opening the first cover 114, removing the primary pre-filter 221, and removing the secondary pre-filter 222. During the execution of these three actions, it is necessary to hold the body assembly 1 all the time. Since these three actions take a long time, the other hand also takes a long time to hold the body assembly 1, which makes the user's operation more laborious. After the primary prefilter 221 and secondary prefilter 222 are cleaned, the user needs to hold the body assembly 1 with one hand, and perform the installation of the secondary prefilter 222, the installation of the primary prefilter 221, and the first with the other hand. The cover 114 is installed in three actions, and the operation is relatively tedious, so that the user still needs to hold the body assembly 1 for a long time, and the operation is laborious.

In the example of FIG. 8, in the process of disassembling and preassembling the prefilter assembly 2 to the casing 11, the user holds the body assembly 1 with one hand, and the other hand only needs to remove the prefilter box 21 by one action. The process is very short and the user is very labor-saving. Subsequent users can put down the body assembly 1 and take the small pre-filter box 21 to the cleaning position. Then easily disassemble the pre-filter box 21, take out the filter assembly 22 for cleaning, and after cleaning, The filter assembly 22 is replaced in the pre-filter box 21, and then the pre-filter box 21 is returned to the body assembly 1. One hand holds the body assembly 1, and the other hand only needs one to reinstall the pre-filter box 21 into the body assembly 1. Can be operated quickly and effortlessly.

In some specific examples of the present disclosure, as shown in FIG. 11, the filter assembly 22 is detachably connected to the pre-filter box 21. For example, the pre-filter box 21 may include a box body 211 and a box cover 212. After being removed from the cabinet 11, the box cover 212 can be opened, and the filter assembly 22 can be taken out of the box body 211, thereby facilitating operations such as cleaning and replacement of the filter assembly 22. Of course, the present disclosure is not limited to this. As long as the cost allows, the pre-filter assembly 2 may not be detachable. At this time, the user only needs to periodically replace the new pre-filter assembly 2 as a whole.

In some embodiments of the present disclosure, as shown in FIGS. 4, 9 and 15, the filter assembly 22 may include a primary pre-filter 221 and a secondary pre-filter 222. Specifically, the primary pre-filter 221 is in fluid communication upstream of the secondary pre-filter 222, and the filter diameter of the primary pre-filter 221 is larger than the filter diameter of the secondary pre-filter 222, that is, "the smallest size that the primary pre-filter 221 can filter out. The particle size of the dust is “greater than the particle size of the smallest dust that can be filtered out by the secondary pre-filter 222”, in other words, the primary pre-filter 221 achieves coarse filtration relative to the secondary pre-filter 222, and the secondary pre-filter 222 is relatively primary 221 realizes fine filtering.

As a result, the airflow to the pre-filter assembly 2, for example, the airflow entering the pre-filter box 21 from the inlet 2101 of the pre-filter box 21, can pass through the primary pre-filter 221 for rough filtering, and then pass through the secondary pre-filter. The filter 222 performs fine filtration, and then flows out from the outlet 2102 of the pre-filter box 21. Therefore, the filtering effect of the pre-filter assembly 2 can be effectively improved, and the cleanliness of the airflow flowing to the suction motor 12 can be improved, so that the suction motor 12 can work for a long time, stably, and effectively.

Preferably, the primary pre-filter 221 and the secondary pre-filter 222 are detachably connected. For example, in the example shown in FIG. 10 to FIG. 11, the secondary pre-filter 222 may be extracted from the primary pre-filter 221. Therefore, the user can separate the primary pre-filter 221 and the secondary pre-filter 222, and perform corresponding treatment on the primary pre-filter 221 and the secondary pre-filter 222, as required, for example, according to the material of the primary pre-filter 221. Corresponding cleaning measures are taken or replaced according to the degree of pollution. Corresponding cleaning measures are taken or replaced according to the material and degree of pollution of the secondary pre-filter 222, which can improve the maintenance effect and reduce the maintenance cost.

Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, for example, in the example shown in FIG. 3, the pre-filter assembly 2 may not include the pre-filter box 21 but includes the filter assembly 22. The housing 11 may include a mounting cavity 1123 for receiving the filter assembly 22 and a first cover 114 for opening and closing the mounting cavity 1123. After the first cover 114 is opened, the filter assembly 22 can be taken out of the mounting cavity 1123. At this time, the disassembly and assembly of the pre-filter module 2 including only the filter module 22 may cause reorganization of the cabinet 11, but can reduce production costs.

In the following, a pre-filter assembly 2 according to three specific examples of the present disclosure is described.

Example one

As shown in FIG. 3 and FIG. 4, the pre-filter module 2 does not include the pre-filter box 21 but includes the filter module 22. The filter module 22 includes a first-stage pre-filter 221 and a second-stage pre-filter 222. The first-stage pre-filter 221 is located at the second stage. Above the pre-filter 222. The upper mounting portion 1121 has a mounting cavity 1123. The top of the mounting cavity 1123 is open and controlled by the first cover 114. The filter assembly 22 is disposed in the mounting cavity 1123 and is located above the primary prefilter 221 and the bottom surface of the first cover 114. There is a gap 11230 between them. The second pipe 13 is located in the lower mounting portion 1122. The upper end of the second pipe 13 penetrates into the mounting cavity 1123 and passes through the secondary pre-filter 222 and the primary pre-filter 221 in order upwards. The lower mounting portion 1122 There is also a first pipe 14 therein. The upper end of the first pipe 14 penetrates into the installation cavity 1123 and is located at the bottom of the secondary pre-filter 222. When the suction motor 12 is working, the air treatment component 3 can filter out clean air and clean air. It can be discharged upward along the second pipe 13 into the gap 11230 above the first-stage pre-filter 221, and then under the action of the negative pressure in the first pipe 14, the airflow discharged into the gap 11230 flows through the first-stage The filter 221 and the secondary pre-filter 222 then flow to the suction motor 12 through the first pipe 14.

Example two

As shown in FIG. 8 to FIG. 11, the upper mounting portion 1121 has a mounting cavity 1123, and the top of the mounting cavity 1123 is open. The pre-filter assembly 2 is detachably provided in the mounting cavity 1123, and the pre-filter assembly 2 is installed in the mounting cavity 1123. At this time, the top surface of the pre-filter assembly 2 constitutes a part of the external appearance surface of the handheld vacuum cleaner 200.

The pre-filter assembly 2 includes a pre-filter box 21 and a filter assembly 22. The filter assembly 22 includes a first-stage pre-filter 221 and a second-stage pre-filter 222. The first-stage pre-filter 221 may be sleeve-shaped and sleeved on the second-stage pre-filter. 222, so that all the filter holes 2221 of the secondary pre-filter 222 are surrounded by the primary pre-filter 221. Therefore, it is possible to simply and effectively ensure that the airflow flowing to the secondary pre-filter 222 is filtered by the primary pre-filter 221 in advance, thereby improving the filtering energy efficiency of the pre-filter assembly 2.

For example, in the example shown in FIG. 11, the secondary pre-filter 222 may have a roughly tube shape. The filter holes 2221 of the secondary pre-filter 222 are formed on the peripheral wall of the secondary pre-filter 222, and the primary pre-filter 221 is sleeved on Outside the peripheral wall of the secondary pre-filter 222, the airflow filtered by the primary pre-filter 221 is filtered by the filter holes 2221 on the peripheral wall of the secondary pre-filter 222 and flows into the exhaust passage 2222 in the lumen of the secondary pre-filter 222. (Combined with Figure 9).

As shown in FIG. 8 to FIG. 11, the pre-filter assembly 2 may further include: a connecting pipe 23. One end of the connecting pipe 23 is located in the pre-filter box 21 and extends into the primary pre-filter 221 and is connected to the secondary pre-filter 222. The air channel 2222 is in fluid communication, and the other end of the connecting pipe 23 passes through the outlet 2102 to the outside of the pre-filter box 21. As a result, the airflow filtered by the secondary pre-filter 222 can be reliably discharged from the outlet 2102 to the outside of the pre-filter box 21 through the connecting pipe 23, thereby improving the filtering efficiency and filtering reliability of the pre-filter assembly 2 and avoiding passing through the second filter. The air flow filtered by the secondary pre-filter 222 is mixed with the air flow that is not filtered by the secondary pre-filter 222, resulting in a problem that the filtering efficiency is reduced. Optionally, the cross-sectional area of the connecting pipe 23 is gradually increased along the exhaust direction, so that exhaust noise can be reduced. In addition, by providing the connecting pipe 23, the connection of the pre-filter assembly 2 and the first pipe 14 is also facilitated.

As shown in FIG. 8 to FIG. 11, the longitudinal axis 20 of the pre-filter assembly 2 extends in the lateral direction, that is, the axis of the primary pre-filter 221 around the secondary pre-filter 222 may also extend in the lateral direction. The exhaust passage 2222 may also extend in the lateral direction. At this time, the inlet 2101 of the pre-filter box 21 may be located at the bottom of the pre-filter box 21, and the outlet 2102 of the pre-filter box 21 may be located at one end in the lateral direction of the pre-filter box 21, so that the air flow can be Through the inlet 2101, it enters the pre-filter box 21 from bottom to top, and then is filtered by the first-stage pre-filter 221, then by the second-stage pre-filter 222, and then passes through the exhaust channel 2222 of the second-stage pre-filter 222 and passes through the outlet in the lateral direction 2102 is discharged out of the pre-filter box 21. Thereby, the path of the airflow through the pre-filter assembly 2 can be simplified, so that the filtering efficiency can be improved on the one hand, and the structure can be simplified and processed on the other hand.

Optionally, the primary pre-filter 221 is a piece of filter cotton material, the secondary pre-filter 222 is a piece of non-woven material, and the connecting pipe 23 is a plastic pipe. Therefore, the filtering diameter of the primary pre-filter 221 can be simply and effectively ensured to be larger than that of the secondary pre-filter 222. Moreover, it can be ensured that the secondary pre-filter 222 has sufficient supporting strength to facilitate the installation of the primary pre-filter 221, and that the primary pre-filter 221 has sufficient flexibility to be tightly sleeved on the secondary pre-filter 222. Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the primary pre-filter 221 and the secondary pre-filter 222 may also be processed using other materials. For example, the secondary pre-filter 222 may also be processed using materials such as plastic.

Example three

As shown in FIG. 14 to FIG. 15, the upper mounting portion 1121 has a mounting gap 1124, and both sides and the top surface of the mounting gap 1124 are open. The pre-filter module 2 is detachably provided in the mounting gap 1124, and is installed in the pre-filter module 2. When the gap 1124 is installed, the two side surfaces and the top surface of the pre-filter assembly 2 respectively form part of the exterior surface of the handheld vacuum cleaner 200.

As shown in FIGS. 14 to 15, the pre-filter module 2 includes a pre-filter box 21, a filter module 22, an inner pipe 24 and an outer pipe 25. The filter module 22 includes a primary pre-filter 221, a secondary pre-filter 222, and a filter module 22. Both the inner tube 24 and the inner tube 24 are located inside the pre-filter box 21, the outer tube 25 is located outside the pre-filter box 21, an inlet 2101 is formed at the bottom of the pre-filter box 21, an outlet 2102 is formed at the lateral end of the pre-filter box 21, and the installation height of the outlet 2102 is Above the installation height of the inlet 2101, the primary pre-filter 221 is located below the secondary pre-filter 222. The inner tube 24 is embedded in the primary pre-filter 221 and the inlet end of the inner tube 24 is directly connected to the inlet 2101 of the pre-filter box 21. The outlet end of the inner tube 24 is directly connected to the primary pre-filter 221, the secondary pre-filter 222 is directly connected to the outlet 2102 of the pre-filter box 21, and the outlet 2102 of the pre-filter box 21 is connected to the outer tube 25. Among them, the axis of the inner tube 24 extends in the lateral direction, and the air flow direction defined by the inner tube 24 is opposite to the air flow direction of the outlet 2102 of the pre-filter box 21, and the outer tube 25 follows a fold line from front to back and then from top to bottom. extend.

As a result, the airflow can enter the inner tube 24 from the inlet 2101 of the pre-filter box 21, and then flow into the first-stage pre-filter 221 in a first direction (such as the rear right forward direction shown in FIG. 14), The air flow filtered by the stage pre-filter 221 may enter the stage two pre-filter 222 upward, and then be passed by the stage two pre-filter 222 in a second direction opposite to the first direction (the front-to-back direction shown in FIG. 14). It is filtered and finally discharged into the outer tube 25 through the outlet 2102 of the pre-filter box 21. Therefore, by providing the inner tube 24 in the pre-filter assembly 2, the air flow path can be effectively extended, the filtering effect can be improved, and the pre-filter assembly 2 can be connected to the second pipe 13. In addition, by providing the outer tube 25, it is also possible to It is convenient to connect the pre-filter assembly 2 with the first pipe 14.

Next, an air treatment module 3 according to an embodiment of the present disclosure is described.

As shown in FIG. 19 to FIG. 23, the air treatment module 3 may include a cyclone cavity 301, a dust collection cavity 302, and a cyclone separator 33. The cyclone separator 33 is provided in the cyclone cavity 301, and the dust collection cavity 302 passes through the ash drop opening 305. It communicates with the cyclone chamber 301, that is, the airflow entering the cyclone chamber 301 can be separated by a cyclone, and the dust separated by the cyclone in the cyclone chamber 301 can enter the dust collection chamber 302 through the ash drop port 305. Among them, the cyclone separator 33 is understood in a broad sense, and may be one or more stages. It can be understood that the structure and working principle of the first-stage cyclone separator and the multi-stage cyclone separator are well known to those skilled in the art. This article only uses the cyclone separator 33 as the first-stage cyclone separator as an example. After reading the technical solution of this document, those skilled in the art will clearly understand that the cyclone separator 33 is an application example of a multi-stage cyclone separator.

As shown in FIG. 23, when the air treatment module 3 is installed on the airframe module 1, the axis 3010 of the cyclone cavity 301 extends in the lateral direction. Therefore, by placing the cyclone cavity 301 horizontally, the overall height of the handheld vacuum cleaner 100 can be effectively reduced, the height of the center of gravity of the handheld vacuum cleaner 100 can be reduced, the stability of the handheld vacuum cleaner 100 on a horizontal plane can be improved, and the handheld vacuum cleaner 100 can be placed on a horizontal plane. Moreover, since the height and the center of gravity of the handheld vacuum cleaner 100 can be lowered, the handheld vacuum cleaner 100 can be held lighter and labor-saving. Here, it should be noted that the axis 3010 of the cyclone cavity 301 described herein refers to the cyclone axis in the cyclone cavity 301.

In some embodiments of the present disclosure, as shown in FIGS. 19 and 20, the air treatment assembly 3 includes a dust cup 31 and a cup lid 32, the cyclone cavity 301 and the dust collection chamber 302 are defined by the dust cup 31, and the cyclone cavity 301 and The dust collection chamber 302 is controlled by the cup lid 32, that is, when the cup lid 32 is closed on the dust cup 31, the cyclone chamber 301 and the dust collection chamber 302 can be closed by the cup lid 32, and when the cup lid 32 is removed from the dust cup 31 After being opened, the cyclone cavity 301 and the dust collection cavity 302 can be opened by the cup cover 32.

As shown in FIG. 19 and FIG. 20, the cyclone separator 33 is provided on the cup lid 32 to move with the cup lid 32. When the cup lid 32 closes the cyclone cavity 301 and the dust collection chamber 302, the cyclone separator 33 moves into the cyclone cavity 301 ( As shown in FIG. 23), when the cup lid 32 opens the cyclone cavity 301 and the dust collection chamber 302, the cyclone separator 33 moves out of the cyclone cavity 301 (as shown in FIG. 20).

Therefore, the air treatment module 3 can be an independent module, and a part of the surface can constitute the appearance of the handheld vacuum cleaner 100, so that the disassembly and assembly of the air treatment module 3 will not cause the reassembly of the pre-filter module 2 and the casing 11. Moreover, since the cyclone separator 33 is provided on the cup lid 32, when the cup lid 32 is opened and dusted, the cyclone separator 33 can be taken out from the dust cup 31 at the same time to clean the cyclone separator 33. When the cup lid 32 is closed, the cyclone separator 33 can be installed back into the dust cup 31, thereby effectively improving the efficiency of disassembling and assembling the air treatment component 3 itself, which is convenient for users to operate.

In some specific examples of the present disclosure, as shown in FIG. 23, when the cyclone separator 33 is provided on the cup lid 32 to move with the cup lid 32, the cyclone separator 33 may be integrated with the cup lid 32. Thereby, the processing is convenient, and the structure of the cyclone separator 33 is high, and the work stability is strong. In some other specific examples of the present disclosure, when the cyclone separator 33 is provided on the cup cover 32 to move with the cup cover 32, the cyclone separator 33 may also be detachably provided on the cup cover 32. Therefore, after the cup lid 32 is opened, the cyclone separator 33 can be removed from the cup lid 32 to perform operations such as cleaning the cup lid 32 and the cyclone separator 33 separately, thereby facilitating maintenance.

In some specific embodiments of the present disclosure, as shown in FIG. 23, the dust cup 31 may include a cup body 311 and a spacer 312. The spacer 312 is disposed in the cup body 311 and divides the inner cavity of the cup body 311 into a cyclone cavity. 301 and a dust collecting cavity 302, and an ash drop opening 305 are formed on the partition 312. Therefore, the dust cup 31 has a simple structure and is easy to process.

For example, in the specific example shown in FIG. 23, the partition 312 may be a horizontally-shaped arc-shaped plate, the cyclone cavity 301 is located above the arc-shaped plate, and the dust collection cavity 302 is located below the arc-shaped plate. Therefore, the shape of the partition 312 is simple, which is convenient for processing, and it is convenient to clean the cyclone cavity 301 and the dust collecting cavity 302. Optionally, the arc-shaped plate-shaped spacer 312 and the cup body 311 are integrated, thereby eliminating the need for assembly, improving production efficiency, and the separation effect of the spacer 312 is reliable.

For another example, in the specific examples shown in FIG. 17 and FIG. 18, the partition member 312 may also be a horizontal cylindrical member, the cyclone cavity 301 is located in the cylindrical member-shaped partition member 312, and the dust collecting chamber 302 is located in the cylindrical member. Outside the shaped spacer 312, the cyclone cavity 301 can be simply and effectively guaranteed to be a cylindrical cavity, thereby ensuring the cyclonic separation effect in the cyclone cavity 301. Optionally, the cylindrical spacer 312 is mated with the cup cover 32 and the cup body 311, respectively. Therefore, the cylindrical spacer 312 can be taken out of the cup body 311, thereby facilitating more thorough Clean.

In some alternative embodiments of the present disclosure, as shown in FIG. 20, the cup body 311 may be open on one axial side (such as the front side shown in FIG. 20) and the other axial side (such as the one shown in FIG. 20). (Rear side) the closed first cylinder body, and the cup cover 32 is used to open and close the axially open end of the first cylinder body (for example, the rear end shown in FIG. 20). Therefore, the structure of the cup body 311 is simple and convenient for production. In other optional embodiments of the present disclosure, the cup body 311 may further include a second cylinder (not shown) and an end cover (not shown) that are open on both sides in the axial direction. At this time, the cup cover 32 is used to switch the axial end of the second cylinder (as shown in the rear end shown in FIG. 20), and the end cover is used to close the axial end of the second cylinder (as shown in the front end shown in FIG. 20). Therefore, the cup body 311 can be further disassembled, thereby facilitating more thorough cleaning of the cup body 311.

In some embodiments of the present disclosure, as shown in FIG. 23, the dust cup 31 may further include a support member 313 provided in the cyclone cavity 301, and the cyclone separator 33 is mated with the support member 313. Thereby, the reliability of the positioning of the cyclone separator 33 can be improved, and the reliability of the operation of the cyclone separator 33 can be improved.

In some embodiments of the present disclosure, as shown in FIG. 17 to FIG. 18, the front side of the cyclone cavity 301 has a dirty air inlet 303 penetrating in a tangential direction, and the rear side of the cyclone cavity 301 has a top-to-bottom penetration. The ash drop opening 305, the rear end of the cyclone cavity 301 has a clean air outlet 304 axially penetrating from front to back, the cyclone separator 33 includes a cone 331 and a filter 332 (combined with FIG. 20), and the front end of the cone 331 is closed. It is radially opposite to the dirty air inlet 303. The rear end peripheral wall of the cone 331 is closed and radially opposite to the ash drop opening 305. An air inlet 3310 is formed in the middle of the cone 331. The rear end of the cone 331 is open to make the cone The inner cylinder cavity of 331 communicates with the clean air outlet 304, and the filter 332 is provided at the air inlet 3310 (the state after the filter 332 is removed is shown in FIG. 17).

Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the cyclone separator 33 may not include the filter screen 332. When the cyclone separator 33 does not include the filter screen 332, the air inlet 3310 may satisfy the following requirements. In addition to the unobstructed overall opening in the mouth of the i and f values, it can also be composed of multiple air intake micropores. At this time, the area where the multiple air intake microholes are located can meet the i and f values described later. . In addition, it should be noted that the connection manner of the cone 331 and the filter screen 332 is not limited, for example, it can be detachably assembled together, and it can also be overmolded into an integral structural part.

In other words, along the front-to-back direction, the dirty air inlet 303, the air inlet 3310 of the cone 331, and the ash drop opening 305 are spaced apart in order, thereby preventing the dirty air inlet 303 from entering the cyclone cavity 301. The airflow directly enters the inner cylinder cavity of the cone barrel 331 through the air inlet 3310 of the cone barrel 331 without being separated by a cyclone outside the cone barrel 331, and avoids that there is still airflow through the air inlet 3310 at the ash drop opening 305. The problem that dust enters into the inner cavity of the cone 331 and dust is drawn in, thereby improving the air treatment effect of the air treatment module 3.

In some embodiments of the present disclosure, as shown in FIG. 23, the length direction of the cyclone cavity 301 and the dust collection cavity 302 are both front-rear directions, and the longitudinal length of the cyclone cavity 301 (as shown in FIG. 23 in the front-rear direction). The length) is larger than the longitudinal length of the dust collecting chamber 302 (the length in the front-rear direction as shown in FIG. 23). Therefore, on the one hand, the volume of the cyclone cavity 301 can be ensured to be sufficient for cyclonic separation, and on the other hand, problems such as the dust collecting cavity 302 being excessively heavy and the lowering of the center of gravity of the whole machine, which cause inconvenience in holding, can be avoided, thereby facilitating the user to hold and saving production materials ,reduce manufacturing cost.

In some embodiments of the present disclosure, as shown in FIG. 20, the external surface of the air treatment module 3 has a dirty air inlet 303, a clean air outlet 304, and a detection vent 306. That is, when the air treatment module 3 is removed from After the casing 11 is removed, if the presence of the dirty air inlet 303, the clean air outlet 304, and the detection vent 306 are not taken into consideration, the air processing module 3 is a closed unit. Among them, the dirty air inlet 303 and the clean air outlet 304 are both in communication with the cyclone cavity 301, and the detection vent 306 is in communication with the dust collection cavity 302 and is used to connect the dust full indicator 4, as shown in FIG. 15, the dust full indicator 4 can It is provided in the casing 11 and connected to the detection vent 306, of course, it is not limited to this. As shown in FIG. 23, the dust full indicator 4 can also be provided in the dust collection chamber 302 and connected to the detection vent 306.

Therefore, by setting the detection vent 306, the handheld vacuum cleaner 100 can include a dust full indicator 4, so that it can simply and effectively determine whether the handheld vacuum cleaner 100 is full, thereby prompting the user to clean the dust collection chamber 302 in time. To ensure reliable cleaning results. Here, it should be noted that the structure and working principle of the dust full indicator 4 are well known to those skilled in the art, that is, a device capable of issuing an alarm signal after the dust in the dust collecting chamber 302 reaches a predetermined volume, and is no longer here Elaborate.

In some embodiments of the present disclosure, as shown in FIG. 23, the cyclone cavity 301 is located above the dust collection cavity 302, and the ash drop openings 305 and the detection vents 306 are spaced apart from each other in the front-rear direction. Therefore, the problem that the dust falling from the ash drop port 305 falls to the detection vent 306 and affects the detection of the dust full indicator 4 can be avoided, thereby ensuring that the detection result of the dust full indicator 4 is reliable.

For example, in the specific example shown in FIG. 23, the dust collecting chamber 302 includes a first cavity portion 3021 directly below the cyclone cavity 301 and a second cavity portion 3022 located on the lower side behind the cyclone cavity 301. The detection vent 306 is formed at the first The rear surface of the two cavity portion 3022. Therefore, it is possible to simply and effectively ensure that the ash drop opening 305 and the detection vent 306 are spaced apart from each other in the front-rear direction, and the working effect of the cyclone cavity 301 is not affected.

In some alternative embodiments of the present disclosure, as shown in FIG. 23, the dust full indicator 4 may be provided in the dust collecting chamber 302. Therefore, by setting the dust full indicator 4 in the dust collecting chamber 302, since The air treatment component 3 can be removed, thereby facilitating the subsequent use and maintenance of the dust full indicator 4 and ensuring the reliable operation of the dust full indicator 4.

For example, in the specific example shown in FIG. 23, the rear end surface of the second cavity portion 3022 may extend obliquely from top to bottom and in a front-to-rear direction, and the dust full indicator 4 may be provided in the second cavity portion 3022 and The longitudinal axis 40 of the dust-full indicator 4 is perpendicular to the rear end surface of the second cavity portion 3022. Therefore, by providing the rear end surface of the second cavity portion 3022 in this way, more space can be provided for the dust full indicator 4 to be installed, and the space of the second cavity portion 3022 can be kept compact and compact. Of course, the present disclosure is not limited to this. In other embodiments of the present disclosure, the dust full indicator 4 may also be provided at the front portion in the dust collecting chamber 302. At this time, the detection vent 306 may also be formed in the first cavity portion. The front end surface of 3021 is in a position such that the second cavity portion 3022 does not need to be processed.

In some alternative embodiments of the present disclosure, as shown in FIG. 15, the dust-full indicator 4 is provided in the casing 11. Thereby, the dust full indicator 4 is prevented from occupying the space in the dust collecting cavity 302, and the working reliability of the dust full indicator 4 is improved. Optionally, the dust-full indicator 4 is provided between the front of the suction motor 12 and the rear of the air treatment module 3. Thereby, the distance between the dust full indicator 4 and the air processing component 3 can be shortened, and the connection of the dust full indicator 4 and the detection vent 306 is facilitated, thereby facilitating the detection of the dust full condition and simplifying the structure. Further, in the specific example shown in FIG. 15, the longitudinal axis 40 of the dust-full indicator 4 may extend obliquely from bottom to top and from front to back, and the axis 120 of the suction motor 12 may be in the vertical direction. Extended, which can improve the compactness of the layout.

19 to 23, an air treatment module 3 according to a specific embodiment of the present disclosure will be described.

As shown in FIG. 19 to FIG. 23, the air treatment assembly 3 includes a dust cup 31, a cup lid 32, and a cyclone separator 33. The dust cup 31 includes a cup body 311 and an arc-shaped plate-shaped spacer 312. The inner cavity of 31 is divided into a cyclone cavity 301 located above the partition 312 and a dust collection cavity 302 located below the partition 312. The partition 312 has an ash drop opening 305. The dust cup 31 has a dirty air inlet 303, the cup cover 32 has a clean air outlet 304 and a detection vent 306, a cyclone 33 is provided on the cup cover 32 and is connected to the clean air outlet 304, and the dust full indicator 4 is provided by The detection vent 306 is mounted on the cup lid 32 and extends into the dust collection chamber 302. The cup cover 32 can be removed from the dust cup 31, and the dust full indicator 4 can be removed from the cup cover 32, thereby facilitating more thorough cleaning of the air handling component 3.

In some specific examples, the dust full indicator 4 may remind the user to clean the dust collecting chamber 302 by a method such as a floating flag displacement. However, when the handheld vacuum cleaner 100 does not have the dust full indicator 4, it is difficult for the user to accurately determine the dust full condition in the dust collecting chamber 302, which causes excessive dust inhalation of the dust collecting chamber 302, which affects the dust collection and use effects.

With reference to FIG. 23, the axis 3010 of the cyclone cavity 301 extends horizontally in the front-rear direction, the dirty air inlet 303 is located at the front end of the dust cup 31 and penetrates the cyclone cavity 301 tangentially from top to bottom, and the ash drop opening 305 penetrates the partition 312 in the up-down direction. The ash drop opening 305 is located at the rear end of the cyclone cavity 301 and is open toward the cup lid 32. The cyclone separator 33 may be composed of a filter screen 332 and a plastic cone 331. The cone 331 may include a front section 331a, a middle section 331b, and a rear section 331c connected in order from the front to the rear. The front section and the peripheral wall of the front section 331a are closed, the peripheral wall of the rear section 331c is closed, and the rear end is opened to make the cone 331 The inner cavity is connected to the clean air outlet 304. The middle section 331b has an air inlet 3310 passing through in the axial direction, and a filter 332 covers the air inlet 3310.

During work, the dirty air enters the cyclone cavity 301 downward through the dirty air inlet 303, and the clean air separated by the cyclone in the cyclone cavity 301 enters the inner cavity of the cone 331 through the filter 332 and the air inlet 3310, and then The clean air outlet 304 is discharged, and the dirt separated in the cyclone chamber 301 enters the dust collection chamber 302 through the ash drop port 305. As a result, the air duct layout is simple, the space occupation is small, the air flow is smooth, and the ash fall reliability is high.

Among them, the diameter m of the cyclone cavity 301 satisfies: 30mm≤m≤50mm, that is, the maximum diameter at any section of the cyclone cavity 301 does not exceed 50mm, the minimum diameter is not less than 30mm, and the difference between the radius of the cyclone cavity 301 and the cone 331 o Satisfaction: 20mm≤o≤40mm, that is, the difference o between the radius of any section of the cyclone cavity 301 is not more than 40mm, and the minimum is not less than 20mm. The length k1 of the ash drop opening 305 satisfies: 10mm≤k1≤30mm, that is, the length k1 of the ash drop opening 305 does not exceed 30mm at the maximum and the minimum is not less than 10mm, and the width k2 of the ash drop opening 305 satisfies: 30mm≤k2≤50mm In other words, the width k2 of the ash drop opening 305 is not more than 50 mm at the maximum and 30 mm at the minimum. With reference to FIG. 4, the distance between the axis 3010 of the cyclone cavity 301 and the top wall of the cyclone cavity 301 is X, and the distance between the axis 3010 of the cyclone cavity 301 and the bottom wall of the dust collection chamber 302 is Y. X / Y satisfies: 0.3≤X / Y≤0.6. As a result, the dust-gas separation effect is better, the proportion of the whole machine is beautiful, the center of gravity is stable, and the use is light.

Next, a suction tube assembly 5 according to an embodiment of the present disclosure will be described.

In some embodiments of the present disclosure, as shown in FIGS. 24-30, the handheld vacuum cleaner 100 may further include an air suction tube assembly 5. At this time, the cabinet 11 may include a mounting portion 112, and a suction unit located in front of the mounting portion 112. The mouth portion 113 and the handle portion 111 located behind the mounting portion 112. The suction motor 12 is provided in the mounting portion 112. The suction pipe assembly 5 is detachably mounted on the suction nozzle portion 113. The suction pipe assembly 5 includes a curved pipe. 51 and a handle 52 provided on the elbow 51. Therefore, the suction pipe assembly 5 can be used to change the suction angle to serve as a multi-angle auxiliary cleaning tool and a multi-angle auxiliary test tool.

For example, in the example shown in FIG. 24, when the handheld vacuum cleaner 100 is tested, the suction tube assembly 5 can be installed on the nozzle portion 113, and the suction tube assembly 5 is connected to the test device 200, and the handheld The vacuum cleaner 100 performs performance tests at different angles, that is, the multi-angle performance test is performed for the handheld vacuum cleaner 100 conforming to human use. However, in the related technology, the handheld vacuum cleaner 100 adopts a horizontal test method, that is, the suction direction is on the same horizontal line with the handheld vacuum cleaner 100, and the test function and angle are single. It is impossible to test the performance parameters of the handheld vacuum cleaner 100 when the user uses it at different angles. And ash absorption status.

For another example, in the example shown in FIG. 25, when the hand-held cleaner 100 is used for cleaning, the suction pipe assembly 5 may be mounted on the suction nozzle portion 113, and an attachment such as FIG. 25 may be mounted on the suction pipe assembly 5. The flat tube 9 and the like shown in the figure can realize multi-angle dust cleaning. More specifically, in conjunction with FIG. 30, by installing the suction pipe assembly 5 on the suction nozzle portion 113, the angle between the casing 11 and the surface to be cleaned can be changed, thereby avoiding collision between the casing 11 and the surface to be cleaned. The cleaning range and use safety of the handheld vacuum cleaner 100 are improved.

In addition, in conjunction with FIG. 24 and FIG. 25, a handle 52 is provided on the suction pipe assembly 5, so that the curved pipe 51 can be easily taken, the removal and installation of the suction pipe assembly 5 and the casing 11 can be facilitated, and cleaning operations or During the test operation, the handle portion 111 on the casing 11 can also be grasped with one hand and the handle 52 on the elbow 51 with the other hand, so that the suction port 510 of the elbow 51 can be aligned with the position to be cleaned or the test device. 200 for easy operation.

With reference to FIG. 30, for such a handheld vacuum cleaner 100 where the air handling component 3 is located below the body component 1, when the space close to the ground is cleaned, for example, under the sofa, if the suction pipe assembly 5 is not provided, as shown in FIG. 30 When cleaning the bottom of the sofa with the handheld vacuum cleaner 100 on the left side, the distance between the air handling unit 3 and the ground is relatively short, and the air handling unit 3 is likely to collide with the ground, which is not conducive to cleaning. With the suction tube assembly 5, as shown in the right hand-held vacuum cleaner 100 in FIG. 30, since the suction tube assembly 5 has a bending angle, when the suction tube assembly 5 is connected to the flat tube 9, the flat tube 9 can be easily Reached under the sofa, at this time, the air treatment component 3 is still far from the ground, which can effectively solve the above-mentioned collision technical problems and facilitate cleaning.

According to the suction pipe assembly 5 of the first embodiment of the present disclosure, as shown in FIG. 25, the curved pipe 51 may include a first pipe section 511 and a second pipe section 512, the first pipe section 511 is connected to the nozzle section 113, and the second pipe section 512 is set upstream of the first pipe section 511, that is, after the airflow is sucked through the suction port 510 of the elbow 51, it flows through the second pipe section 512 and the first pipe section 511 in order to enter the nozzle portion 113. When the elbow 51 is installed on the nozzle section 113, the axis 5110 of the first pipe section 511 coincides with the axis 1130 of the nozzle section 113, and the second pipe section 512 is along a direction away from the first pipe section 511 (as shown in FIG. 25 from the Backward and forward direction) obliquely upwards. Therefore, in conjunction with FIG. 30, during the work of the handheld vacuum cleaner 100, if the second pipe section 512 is leveled, the body assembly 1 and the air treatment assembly 3 can be tilted backwards and upwards, thereby effectively avoiding the body assembly 1 and Problems such as collision between the air treatment component 3 and the surface to be cleaned.

In this embodiment, the first pipe section 511 and the second pipe section 512 are rigidly connected, and the angle ε between the second pipe section 512 and the first pipe section 511 is fixed, for example, ε may be 30 ° to 60 °. That is, the angle ε between the second pipe section 512 and the first pipe section 511 may be at least 30 ° and may be at most 60 °. For example, as shown in FIG. 26, ε may be 30 °; as shown in FIG. 27, ε may be 45 °; and as shown in FIG. 28, ε may be 60 °. Therefore, different practical requirements can be met. For example, in the face of different test situations and cleaning situations, the handheld cleaner 100 can choose to cooperate with the suction pipe assembly 5 having different angles ε.

In this embodiment, as shown in FIG. 26, the handle 52 may be provided at a connection between the first pipe section 511 and the second pipe section 512. As a result, the user can better control the orientation of the curved pipe 51, and the user can operate the suction pipe assembly 5 with more effort. For example, the handle 52 may be an arc handle, that is, the handle 52 may be an arc shape, and one end of the arc handle is connected to the first pipe section 511 and the other end of the arc handle is connected to the second pipe section 512, thereby facilitating the handle 52 Processing and higher grip comfort.

According to the suction pipe assembly 5 of the second embodiment of the present disclosure, as shown in FIG. 29, the curved pipe 51 may include a first pipe section 511, a second pipe section 512, and a transition connector 513. The first pipe section 511 and the suction nozzle section 113 are in phase. Then, the second pipe section 512 is disposed upstream of the first pipe section 511, and the transition joint 513 is connected between the second pipe section 512 and the first pipe section 511, so that the angle between the second pipe section 512 and the first pipe section 511 can be adjusted. Adjustment, that is, the first pipe section 511 and the second pipe section 512 are no longer rigidly connected, and the angle between the first pipe section 511 and the second pipe section 512 can be adjusted. Therefore, by providing the transition connecting piece 513, the included angle between the first pipe section 511 and the second pipe section 512 can be adjusted, so that different practical requirements can be met. At this time, the handle 52 may be provided on the second pipe section 512, so as to avoid the influence of the handle 52 on adjusting the angle between the first pipe section 511 and the second pipe section 512, and on the one hand, ensure the angle between the first pipe section 511 and the second pipe section 512. It can be smoothly adjusted, and on the other hand, the user can hold the suction tube assembly 5 with less effort.

For example, the transition joint 513 can satisfy the angle ε between the second pipe section 512 and the first pipe section 511: 0 ° ≦ ε ≦ 90 °, that is, the first pipe section 511 and the first pipe section 511 are adjusted by adjusting the transition joint 513. The included angle between the two pipe sections 512 can be continuously changed from 0 ° to 90 ° to change to any value from 0 ° to 90 °, which can better meet different practical requirements.

Specifically, as shown in FIG. 29, the transitional connecting piece 513 may include a hose 5131 and a connecting piece 5132. The hose 5131 fluidly connects the first pipe section 511 to the second pipe section 512, and the connecting member 5132 and the first pipe section 511 and The second pipe sections 512 are respectively articulated. Therefore, the structure of the transition joint 513 is simple, and the first pipe section 511 and the second pipe section 512 can be easily and effectively ensured to be movably connected and in fluid communication.

Hereinafter, a handheld vacuum cleaner 100 according to a first embodiment of the present disclosure will be described with reference to FIGS. 1-4.

As shown in FIGS. 1-4, the handheld vacuum cleaner 100 includes: a body component 1, a pre-filter component 2, an air treatment component 3, and the like. The front end of the airframe assembly 1 is defined by an air intake duct 1131 by a nozzle section 113. A longitudinal axis 1130 of the nozzle section 113 (that is, a longitudinal axis 1130 of the intake duct 1131) extends horizontally in the front-rear direction. The axis 3010 of the cyclone cavity 301 extends horizontally in the front-rear direction and is located below the longitudinal axis 1130 of the nozzle section 113. The pre-filter module 2 is disposed above the air treatment module 3, and the longitudinal axis 20 of the pre-filter module 2 is also along the front-rear The direction extends horizontally.

The body assembly 1 includes a casing 11 and a suction motor 12. The suction motor 12 is located between the air handling module 3 and the handle portion 111 of the casing 11. The axis 120 of the suction motor 12 and the longitudinal axis 1110 of the handle portion 111 are both Extends obliquely from top to bottom. More specifically, in the example shown in FIG. 4, the longitudinal axis 1130 of the intake air duct 1131, the longitudinal axis 20 of the pre-filter assembly 2, and the axis phase 3010 of the cyclone cavity 301 are parallel to each other and are horizontally placed, and the suction The axis 120 of the motor 12 can be parallel to the longitudinal axis 1110 of the handle portion 111, and both intersect the longitudinal axis 1130 of the intake air duct 1131 at an included angle θ of 20 ° to 90 °, thereby facilitating operation and use.

As shown in FIG. 3, the cabinet 11 includes a mounting portion 112, a nozzle portion 113, and a handle portion 111. The nozzle portion 113 is mounted on the mounting portion 112 through a first locking mechanism 161 to be detachably connected to the mounting portion 112. The rear end of the suction nozzle section 113 also has a downwardly extending curved duct 1132, the upper end of the curved duct 1132 is communicated with the intake air duct 1131, and the lower end of the curved duct 1132 is connected to the dirty air inlet of the air treatment unit 3. 303 is connected. When the suction motor 12 is working, dirty air is sucked in through the intake air duct 1131, enters the air treatment component 3 through the curved duct 1132, and then flows to the pre-filter assembly 2, then to the suction motor 12, and finally from the casing 11 The exhaust port 1151 is exhausted.

As shown in FIG. 3 and FIG. 4, the grip surface of the handle portion 111 may be provided with a handle rubber 1111, thereby improving the gripping feeling. In addition, a switchable second cover 115 may be provided below the handle portion 111, and the second cover 115 has an air exhaust opening 1151. The switch locking of the second cover 115 may be controlled by the fourth locking mechanism 164, and the second cover 115 An exhaust filter 15 is provided therein, and the exhaust filter 15 is in air flow communication between the suction motor 12 and the exhaust port 1151, so that the cleanliness of the air discharged from the exhaust port 1151 can be further improved on the one hand, and on the other hand, It is possible to prevent outside air from entering the casing 11 from the exhaust port 1151.

As shown in FIGS. 3 and 4, the pre-filter assembly 2 is in air flow communication between the suction motor 12 and the air treatment assembly 3. The casing 11 may have a mounting cavity 1123 therein, and the casing 11 includes a mounting cavity 1123 for opening and closing the mounting cavity 1123. The first cover 114 and the pre-filter assembly 2 are filter assemblies 22 provided in the installation cavity 1123. After the first cover 114 on the cabinet 11 is opened, the pre-filter assembly 2 can be taken out of the installation cavity 1123 to perform Cleaning. The opening and closing of the first cover 114 can be controlled by the second locking mechanism 162.

As shown in FIG. 3 and FIG. 4, the filter assembly 22 includes a first-stage pre-filter 221 and a second-stage pre-filter 222. The first-stage pre-filter 221 is located above the second-stage pre-filter 222. There is a gap 11230 between them, and the second pipe 13 is installed in the mounting portion 112. The upper end of the second pipe 13 penetrates into the mounting cavity 1123 and passes through the secondary pre-filter 222 and the primary pre-filter 221 in order upwards. The first duct 14, the upper end of the first duct 14 penetrates into the installation cavity 1123 and is located at the bottom of the secondary pre-filter 222. When the suction motor 12 is working, the air processing module 3 can filter out clean air, and the clean air can flow along the The first pipe 14 is discharged upward into the gap 11230 above the first-stage pre-filter 221, and then, under the action of the negative pressure in the first pipe 14, the airflow discharged above the first-stage pre-filter 221 flows downward in sequence through a The primary pre-filter 221 and the secondary pre-filter 222 then flow to the suction motor 12 through the first pipe 14.

The air treatment assembly 3 includes a dust cup 31, a cup lid 32, and a cyclone separator 33. The cyclone separator 33 is integrated with the cup lid 32, and the cup lid 32 and the dust cup 31 can be separated for cleaning or washing, respectively. The air handling module 3 itself is an independent component, and when installed on the casing 11, it can be used as a part of the appearance of the handheld vacuum cleaner 100, so that the process of disassembling and disassembling the air handling module 3 and the casing 11 can not affect the casing 11 Reorganization, that is, the casing 11 does not include a cover covering the air handling module 3, so the reorganizing action of opening and closing the cover is not required to implement the installation of the air handling module 3. However, it should be noted that the opening and closing operations of the third locking mechanism 163 for locking and unlocking the casing 11 and the air handling module 3 are not included in the scope of the casing 11 reorganization.

During the operation of the suction motor 12, dirty air can enter the cyclone cavity 301 downward through the dirty air inlet 303 at the top of the dust cup 31 to perform cyclonic separation, and the air flow separated from the dirt can enter the cone through the filter 332 331, and then exhausted from the clean air outlet 304 on the lid 32 along the air duct in the cone 331, and the dust and other dirt separated in the cyclone cavity 301 can be entered downward through the ash drop port 305. Inside the dust cavity 302. In addition, in order to ensure the working reliability of the suction motor 12, a first pressure base 121 and a second pressure base 122 may be respectively provided at two axial ends of the suction motor 12. In addition, the handheld vacuum cleaner 100 of this embodiment may further include a switch push button 6, an electric control board 7, a plug-in terminal 8, and the like.

Therefore, according to the handheld vacuum cleaner 100 of this embodiment, the air treatment module 3 can be removed as a whole and disassembled at one time. The removed air treatment module 3 has a dirty air inlet 303 and a clean air outlet 304 in addition to its appearance. In addition, the air treatment module 3 is a sealed unit as a whole, so that the problem of internal dust leakage does not occur during the removal of the air treatment module 3, and it is not easy to cause secondary pollution of dust. Moreover, since the dust cup 31 and the cup lid 32 in the air processing assembly 3 can be separated, it is convenient to perform more thorough cleaning of the dust cup 31 and the cup lid 32. In addition, the hand-held vacuum cleaner 100 has a simple air duct, small space occupation, simple operation, and high efficiency.

In addition, in the first embodiment, the dust cup 31 may include a cup body 311 and a curved plate-shaped spacer 312. A cyclone cavity 301 is defined above the spacer 312, and a dust collection chamber 302 is defined below the spacer 312. The ash drop opening 305 is formed on the spacer 312. The distance between the axis of the cyclone cavity 301 and the top wall of the cyclone cavity 301 is X, and the distance between the axis of the cyclone cavity 301 and the bottom wall of the dust collection cavity 302 is Y. X / Y satisfies: 0.3≤X / Y≤0.6. 19 to 23, the diameter m of the cyclone cavity 301 satisfies: 30 mm ≦ m ≦ 50 mm, and the difference o between the radius of the cyclone cavity 301 and the cone 331 satisfies: 20 mm ≦ o ≦ 40 mm. The length k1 of the ash drop opening 305 satisfies: 10mm≤k1≤30mm, and the width k2 of the ash drop opening 305 satisfies: 30mm≤k2≤50mm.

5 to 11, a handheld vacuum cleaner 100 according to a second embodiment of the present disclosure will be described.

The structure of the second embodiment is substantially the same as that of the first embodiment, and only the differences will be briefly described below.

In the second embodiment, the pre-filter module 2 includes a pre-filter box 21 and a filter module 22 provided in the pre-filter box 21. The pre-filter box 21 has an inlet 2101 and an outlet 2102 on the exterior surface, and is integrally formed as a whole. The sealed box body and the pre-filter assembly 2 constitute a part of the exterior surface of the handheld cleaner 100. The disassembly of the pre-filter assembly 2 does not cause the recombination of the casing 11, and only the second locking mechanism 162 needs to be opened to remove the pre-filter assembly 2 from the The casing 11 is directly removed, so that the disassembly and assembly of the pre-filter assembly 2 is convenient, and the first cover 114 does not need to be opened and closed. In addition, during the disassembly of the pre-filter assembly 2, the primary pre-filter 221 and the secondary pre-filter 222 It is wrapped and taken out by the pre-filter box 21, so that there is no problem that the user directly grasps and moves the primary pre-filter 221 and the secondary pre-filter 222 to effectively avoid secondary pollution. In addition, it should be noted that the switching operation of the second locking mechanism 162 does not belong to the reorganization category of the casing 11.

In addition, in the second embodiment, the first-stage pre-filter 221 in the pre-filter assembly 2 is sleeve-shaped, the second-stage pre-filter 222 is sieve-shaped and passed through the first-stage pre-filter 221. A connection point between the inlet 2101 and the first pipe 14 has a first seal ring 141, and a connection point between the outlet 2102 of the pre-filter box 21 and the second pipe 13 has a second seal ring 131. In addition, in the second embodiment, the axis 120 of the suction motor 12 may be arranged vertically. At this time, the axis 120 of the suction motor 12 may intersect with the longitudinal axis 1130 of the intake air duct 1131 at an angle of 90 °, which is convenient. use.

12-18, a handheld vacuum cleaner 100 according to a third embodiment of the present disclosure will be described.

The structure of the third embodiment is substantially the same as that of the second embodiment, and only the differences will be briefly described below.

In the third embodiment, the pre-filter assembly 2 includes a pre-filter box 21, a primary pre-filter 221 and a secondary pre-filter 222 provided in the pre-filter box 21, an inner tube 24 provided in the pre-filter box 21, In the outer tube 25 outside the pre-filter box 21, the second pipe 13 communicates with the inlet 2101 of the pre-filter box 21, the inlet 2101 of the pre-filter box 21 communicates with the inlet of the inner tube 24, and the outlet of the inner tube 24 is connected to the primary pre-filter. 221 is connected, the primary pre-filter 221 is connected to the secondary pre-filter 222, the secondary pre-filter 222 is connected to the outlet 2102 of the pre-filter box 21, the outlet 2102 of the pre-filter box 21 is connected to the inlet of the outer tube 25, The outlet is in communication with the first pipe 14.

In the third embodiment, the dust cup 31 in the air treatment module 3 includes a cylindrical spacer 312, a cyclone cavity 301 is defined in the cylindrical spacer 312, and dust is collected outside the cylindrical spacer 312. The cavity 302, the cylindrical partition 312 has a protrusion 3121, a part of the protrusion 3121 is located in the cyclone cavity 301 as a support 313 to support the cyclone separator 33, and another part of the protrusion 3121 is located in the dust collection cavity Inside 302 and mated with the cup body 311 to support the cylindrical spacer 312. Among them, the diameter m of the cyclone cavity 301 satisfies: 60mm ≦ m ≦ 80mm, and the difference o between the radius of the cyclone cavity 301 and the cone 331 satisfies: 15mm ≦ o ≦ 25mm.

As shown in FIG. 16, in the third embodiment, the suction motor 12 may be tilted to the left or right. For example, the angle α between the axis 120 of the suction motor 12 and the longitudinal axis 1110 of the handle portion 111 may be The angle is 20 to 60 °, so that the center of gravity of the suction motor 12 during operation can be stabilized, noise can be reduced, and the feeling of holding hands can be improved.

In the third embodiment, in addition to the dirty air inlet 303 and clean air outlet 304, the dust cup 31 also has a detection vent 306. At this time, the handheld cleaner 100 also includes a dust full indicator 4, dust The full indicator 4 is connected to the detection vent 306 to detect the full condition of the dust in the dust collection chamber 302. Specifically, in the third embodiment, the detection vent 306 is formed on the cup cover 32, and the dust full indicator 4 is provided in the casing 11 and is located in front of the suction motor 12 so as to be close to the cup cover 32. The detection vent 306 and the ash drop opening 305 are also provided near the cup cover 32, but located in front of the detection vent 306. Therefore, the handheld vacuum cleaner 100 of the third embodiment may have a dust full indication reminding function, which is convenient for reminding users to clean up in time Dust cavity 302.

In the third embodiment, the cyclone separator 33 includes: a cone 331 and a strainer 332 (the strainer 332 is not shown in FIG. 17), and the cone 331 includes a front section 331 a, a middle section 331 b, and In the rear section 331c, each air inlet 3310 of the cone 331 extends from one end to the other end of the middle section 331b in the axial direction, and a plurality of air inlets 3310 of the cone 331 are evenly distributed on the middle section 331b in the circumferential direction.

The length of the front section 331a (length in the front-back direction as shown in 7) is j and the diameter is e, and the length of the middle section 331b (length in front-back direction as shown in 17) is i and the diameter is d. The rear section The length (length in the front-rear direction shown in 17) of the portion 331c is h and the diameter is c. Among them, h <i <j, that is, the length of the cone 331 before the air inlet 3310 is greater than the length of the cone 331 after the air inlet 3310. Among them, c> d> e, that is, the diameter at any section of the front section 331a is smaller than the diameter at any section of the middle section 331b, and the diameter at any section of the middle section 331b is smaller than the diameter at any section of the rear section 331c. . Thereby, the cyclone separation effect can be improved.

The dimensional relationship of the air handling component 3 can be as follows: the length i of the air inlet 3310 (the length in the front-rear direction shown in FIG. 17) satisfies: 40mm≤i≤50mm, and the width f of the air inlet 3310 satisfies: 15mm≤f≤20mm The length k1 of the ash drop opening 305 satisfies: 10mm≤k1≤30mm, the width k2 of the ash drop opening 305 satisfies: 30mm≤k2≤50mm, the length g of the dirty air inlet 303 satisfies: 30mm≤g≤40mm, and the dirty air inlet 303 The width n satisfies: 20mm≤n≤30mm.

Here, it can be understood that the “ports” described herein include the ash drop opening 305, the dirty air inlet 303, and the air inlet 3310 after being flattened into a flat structure, and the length direction and the width direction thereof are perpendicular to each other. In addition, the features disclosed in the drawings of the present disclosure also belong to optional embodiments proposed by the present disclosure.

In the description of this specification, the description with reference to the terms “one embodiment”, “some embodiments”, “examples”, “specific examples”, or “some examples” and the like means specific features described in conjunction with the embodiments or examples , Structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, without any contradiction, those skilled in the art may combine and combine different embodiments or examples and features of the different embodiments or examples described in this specification.

Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, The scope of the present disclosure is defined by the claims and their equivalents.

Claims

A handheld vacuum cleaner, comprising:

A body assembly including a casing and a suction motor provided in the casing;

A pre-filter assembly, which is disposed in the casing and is in fluid communication upstream of the suction motor, and a longitudinal axis of the pre-filter assembly extends in a lateral direction;

An air processing component is provided in the casing and is in fluid communication upstream of the pre-filter component. The air processing component includes a cyclone cavity with an axis extending in a lateral direction.
The handheld vacuum cleaner according to claim 1, wherein the pre-filter assembly is detachably mounted on the casing, and the disassembly and assembly of the pre-filter assembly does not cause the air treatment assembly and the machine Reorganization of the shell.
The hand-held vacuum cleaner according to claim 1 or 2, wherein the air treatment component is detachably installed in the cabinet, and the disassembly and installation of the air treatment component does not cause the pre-filter component and the air filter component to be removed. The reorganization of the case.
The handheld vacuum cleaner according to claim 2 or 3, wherein the cabinet comprises: a handle portion and a mounting portion, the mounting portion is located in front of the handle portion and includes an upper mounting portion and a lower mounting portion, wherein The suction motor is provided in the lower mounting portion, the pre-filter assembly is detachably provided in the upper mounting portion, and the air treatment component is detachably provided in front of the lower mounting portion and the Between the lower part of the upper mounting part.
The handheld vacuum cleaner according to claim 4, wherein the pre-filter assembly is in fluid communication with the suction motor through a first pipe, and a lower end of the first pipe is provided in the lower mounting portion and is located in the lower mounting portion. A suction motor is above and in fluid communication with the suction motor, and an upper end of the first pipe extends to be in fluid communication with the pre-filter assembly.
The handheld vacuum cleaner according to claim 5, wherein a longitudinal axis of the first duct extends in a vertical direction or is parallel to a longitudinal axis of the handle portion.
The handheld vacuum cleaner according to any one of claims 4-6, wherein the air treatment component is in fluid communication with the pre-filter component through a second pipe, and a lower end of the second pipe is provided in the lower The installation portion is in fluid communication with the clean air outlet of the cyclone cavity, and the upper end of the second duct extends to fluid communication with the pre-filter assembly.
The handheld vacuum cleaner according to claim 7, wherein a longitudinal axis of the second duct extends in a vertical direction or is parallel to a longitudinal axis of the handle portion.
The hand-held vacuum cleaner according to any one of claims 1 to 8, wherein the pre-filter assembly is in fluid communication with the suction motor through a first duct, and the air treatment assembly is in communication with the suction motor through a second duct. The pre-filter assembly is in fluid communication, and a longitudinal axis of the first pipe is parallel to a longitudinal axis of the second pipe.
The handheld vacuum cleaner according to any one of claims 1-9, wherein the pre-filter assembly includes a pre-filter box and a filter assembly, and the pre-filter box has an inlet and an outlet in addition to its appearance As a closed box body, the filter assembly is disposed in the pre-filter box and is in fluid communication between the inlet and the outlet.
The handheld vacuum cleaner according to any one of claims 1 to 10, wherein the pre-filter assembly comprises: a primary pre-filter and a secondary pre-filter, and the primary pre-filter is in fluid communication with the secondary Upstream of the pre-filter, the filter diameter of the primary pre-filter is larger than the filter diameter of the secondary pre-filter.
The handheld vacuum cleaner according to claim 11, wherein the primary pre-filter is sleeve-shaped and is sleeved outside the secondary pre-filter so that all filter holes of the secondary pre-filter are covered. The primary pre-filter is surrounded.
The handheld vacuum cleaner according to claim 12, wherein the primary pre-filter is a piece of filter cotton material, and the secondary pre-filter is a piece of non-woven material.
The handheld vacuum cleaner according to claim 12 or 13, wherein the pre-filter assembly further comprises: a connecting pipe, one end of the connecting pipe is located in the pre-filter box and extends into the primary pre-filter and communicates with the first-stage pre-filter. The exhaust passage of the secondary pre-filter is in fluid communication, and the other end of the connecting pipe passes through the outlet to the outside of the pre-filter box.
The handheld vacuum cleaner according to claim 14, wherein a longitudinal axis of the pre-filter assembly extends in a lateral direction, the inlet is located at a bottom of the pre-filter box, and the outlet is located in a lateral direction of the pre-filter box. One end.
The handheld vacuum cleaner according to any one of claims 11-15, wherein the installation height of the inlet is lower than the installation height of the outlet, and the primary pre-filter is located below the secondary pre-filter The filter assembly further includes an inner tube, which is provided in the pre-filter box and embedded in the primary pre-filter. The inlet end of the inner tube is directly connected to the inlet. The outlet end of the inner tube is in direct communication with the primary pre-filter, the secondary pre-filter is in direct communication with the outlet, and the air flow direction defined by the inner tube is opposite to the air flow direction of the outlet.
The handheld vacuum cleaner according to any one of claims 11 to 16, wherein the primary pre-filter and the secondary pre-filter are detachably connected.
The hand-held vacuum cleaner according to any one of claims 1-17, wherein the casing comprises: a handle portion and a mounting portion, the mounting portion is located in front of the handle portion, wherein Projected in a rear direction, the axis of the suction motor intersects with the acute angle of the longitudinal axis of the handle portion.
The handheld vacuum cleaner according to claim 18, wherein the acute angle α where the axis of the suction motor intersects with the longitudinal axis of the handle portion satisfies: 20 ° ≦ α ≦ 60 °.
The handheld vacuum cleaner according to any one of claims 1 to 19, wherein the housing comprises a handle portion and a mounting portion, the mounting portion is located in front of the handle portion, wherein Projected in the rear direction, the axis of the suction motor coincides with the longitudinal axis of the handle portion, and the axis of the suction motor extends in a vertical direction or from top to bottom, and extends obliquely from front to back .
A handheld vacuum cleaner, comprising:

A body assembly including a casing and a suction motor provided in the casing;

A pre-filter assembly, which is disposed in the casing and is in fluid communication upstream of the suction motor;

An air treatment component, which is disposed in the casing and is in fluid communication upstream of the pre-filter component. The air treatment component includes a cyclone cavity whose axis extends in a lateral direction. The top surface of the air treatment component is low. On the bottom surface of the pre-filter assembly.
A handheld vacuum cleaner, comprising:

A body assembly including a casing and a suction motor provided in the casing;

A pre-filter assembly, which is disposed in the casing and is in fluid communication upstream of the suction motor;

An air treatment component, which is disposed in the casing and is in fluid communication upstream of the pre-filter component,

Wherein, the pre-filter assembly is detachably installed in the casing, and the disassembly of the pre-filter assembly does not cause recombination of the air treatment assembly and the casing; the air treatment assembly is detachably It is installed in the casing, and the disassembly and assembly of the air treatment component will not cause the re-assembly of the pre-filter component and the casing.
A handheld vacuum cleaner, comprising:

A body assembly including a casing and a suction motor provided in the casing;

A pre-filter assembly, which is disposed in the casing and is in fluid communication upstream of the suction motor;

An air treatment component, which is disposed in the casing and is in fluid communication upstream of the pre-filter component,

Wherein, the pre-filter assembly is in fluid communication with the suction motor through a first pipe provided in the casing, and the air treatment assembly is in communication with the pre-filter through a second pipe provided in the casing. The components are in fluid communication.