A handheld vacuum cleaner

Abstract

The present invention discloses a handheld vacuum cleaner, comprising: a filter assembly, which comprises a dust cup and multiple cones, wherein the dust cup is hollow inside to form a dust collecting chamber; an air inlet pipe, which is arranged directly in front of the filter assembly and is used to absorb dust-containing gas; a handheld part, which is arranged directly behind the filter assembly and is also provided with a first handle, which is used to control the operation of the vacuum cleaner; wherein the multiple cones are coaxially arranged in the dust cup along the axial direction, and a motor is provided in the first handle of the handheld part. The handheld vacuum cleaner of the present application reduces the overall volume of the vacuum cleaner by adjusting and arranging the internal structure of the vacuum cleaner as much as possible, reduces the weight of the internal motor to reduce the overall weight, and reduces the fatigue of the user during use.

Description

Technical Field

[0001] The invention relates to the field of vacuum cleaners, in particular to a handheld vacuum cleaner. Background Art

[0002] In the field of vacuum cleaners, it is well known that handheld vacuum cleaners of different structures are used to achieve the vacuuming function. In the process of studying and implementing the vacuuming function of handheld vacuum cleaners, the inventors found that the handheld vacuum cleaners in the prior art have at least the following problems:

[0003] Firstly, in existing vacuum cleaners, the internal motors are generally large, which makes the space occupied by the motor in the vacuum cleaner relatively large, causing the main shape of the vacuum cleaner to become larger; secondly, a motor that is too large will make it difficult for users to use the vacuum cleaner, reduce the feel of use, and affect the user experience.

[0004] In view of this, it is necessary to develop a handheld vacuum cleaner to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the main object of the present invention is to provide a handheld vacuum cleaner, which reduces the overall volume of the vacuum cleaner by adjusting and arranging the internal structure of the vacuum cleaner as much as possible.

[0006] Another object of the present invention is to provide a handheld vacuum cleaner whose overall weight is reduced by reducing the weight of the internal motor.

[0007] In order to achieve the above-mentioned purpose and other advantages according to the present invention, a handheld vacuum cleaner is provided, comprising:

[0008] A filter assembly, comprising a dust cup and multiple cones, wherein the interior of the dust cup is hollow to form a dust collecting chamber;

[0009] An air inlet pipe, which is arranged in front of the filter assembly and is used to absorb dust-laden gas;

[0010] The hand-held part is arranged directly behind the filter assembly and is also provided with a first handle for controlling the operation of the vacuum cleaner;

[0011] Wherein, the multi-cone is coaxially arranged in the dust cup along the axial direction, and a motor is arranged in the first handle of the handheld part.

[0012] Preferably, air inlet cotton is also provided in the filter assembly.

[0013] Preferably, the air inlet cotton is located on the multi-cone and at the air outlet of the multi-cone.

[0014] Preferably, the air inlet cotton is coaxially arranged with the dust cup and the multi-cone.

[0015] Preferably, a display screen is provided at one end of the body of the handheld portion close to the first handle.

[0016] Preferably, a battery pack is connected below the first handle of the handheld portion, and the battery pack and the body are respectively arranged in parallel at two ends of the first handle.

[0017] Preferably, an air inlet HEPA is provided behind the multi-cone along the flow direction of the airflow.

[0018] One of the above technical solutions has the following advantages or beneficial effects: due to the arrangement of the internal structure of the vacuum cleaner, the space occupied by the internal structure is reduced, and the appearance of the vacuum cleaner is further reduced.

[0019] Another technical solution among the above technical solutions has the following advantages or beneficial effects: since the weight of the motor is reduced and the motor is arranged inside the vacuum cleaner, the weight of the vacuum cleaner is reduced, further improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of a handheld vacuum cleaner according to an embodiment of the present invention;

[0021] Figure 2 A front view of a handheld vacuum cleaner according to an embodiment of the present invention;

[0022] Figure 3 A front view of a handheld vacuum cleaner according to an embodiment of the present invention;

[0023] Figure 4 It is a front view of a handheld vacuum cleaner according to one embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like components.

[0026] In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined relative to the structure shown in the drawings. In particular, "height" is equivalent to the dimension from top to bottom, "width" is equivalent to the dimension from left to right, and "depth" is equivalent to the dimension from front to back. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directions should not be interpreted as restrictive terms.

[0027] Terms related to attachment, coupling, and the like (eg, "connected" and "attached") refer to either a fixed or attached relationship between structures, either directly or indirectly, and either movable or rigid attachments or relationships, unless expressly stated otherwise, of the structures to one another through intermediate structures.

[0028] Embodiment 1

[0029] According to one embodiment of the present invention, Figure 1 As shown in the figure, it can be seen that the handheld vacuum cleaner includes:

[0030] The filter assembly 1 comprises a dust cup 14, a multi-cone 13 and a HEPA 11, wherein the dust cup 14 is hollow inside to form a dust collecting chamber.

[0031] The air intake pipe 2 is arranged directly in front of the filter assembly 1. The air intake pipe 2 is a hollow tubular structure. The central axis of the air intake pipe 2 intersects with the central axis of the dust cup 14. It is particularly preferred that the central axis of the air intake pipe 2 and the central axis of the dust cup 14 are arranged perpendicular to each other.

[0032] The hand-held part 3 is arranged right behind the filter assembly 1 , and the body 35 of the hand-held part 3 is connected with the filter assembly 1 .

[0033] Although not shown in the figure, it should be understood that an access port is provided between the air inlet pipe 2 and the dust cup 14 of the filter assembly 1 , and an access port should also be provided between the main body 35 of the handheld part 3 and the dust cup 14 of the filter assembly 1 .

[0034] Furthermore, the dust cup 14 should be in a closed state except for the access opening between the air inlet pipe 2 and the main body 35 to form a chamber for collecting dust, avoid dust leakage, and enable dust to be processed centrally.

[0035] Among them, the multi-cone 13 and the Hypa 11 are coaxially arranged in the dust cup 14 from bottom to top along the axial direction, so that the airflow entering the filter assembly 1 from the intake pipe 2 can smoothly pass through the multi-cone 13 and other filter elements in sequence, realize layer-by-layer filtration of the dust-containing airflow, improve the filtration effect, and also reduce the probability of noise generated by large gaps between internal structures, thereby improving the user experience.

[0036] The filter assembly 1 is further provided with air inlet cotton 12 , which is located on the multi-cone and at the end connected to the Hypa 11 .

[0037] Furthermore, the air inlet cotton 12 is coaxially arranged with the dust cup 14, the multi-cone 13 and the HEPA 11. The air inlet cotton 12 first performs a first-stage filtration when the dust-laden airflow enters the filter assembly 1, thereby blocking most of the dust in the airflow, and most of the dust is blocked in the dust cup.

[0038] Furthermore, the motor 33 can reduce the size and weight of the motor while ensuring the normal operation of the vacuum cleaner, thereby reducing the weight burden on the user when using the handheld vacuum cleaner. The motor 33 is arranged in the first handle 32 of the handheld portion 3, avoiding the center of gravity shift caused by the motor being arranged at the front and increasing the weight burden during use. When the user holds the first handle 32 of the handheld portion 3, the motor 33 is held in the hand at the same time, so that the center of gravity of the entire machine is at the user's hand position, reducing the weight burden during use and improving the user experience.

[0039] A battery pack 34 is connected below the first handle 32 of the handheld portion 3. The battery pack 34 is perpendicular to the filter assembly 1. The battery pack 34 and the body 35 are arranged parallel to the two ends of the first handle. The battery pack 34 is arranged below the first handle 32 to reduce the use of the connection line between the battery pack 34 and the motor 33.

[0040] The battery pack 34 is arranged at the bottom of the entire vacuum cleaner. As is well known, the weight of the battery is relatively heavy. The battery pack 34 is arranged at the bottom of the vacuum cleaner so that the center of gravity of the vacuum cleaner is lowered, and the battery pack 34 can support the overall weight of the vacuum cleaner when not in use. The battery pack 34 is arranged in a flat rectangular shape with a flat bottom surface, so that the battery pack 34 can be placed anywhere without adjusting the vacuum cleaner.

[0041] One end of the body 35 is connected to the filter assembly 1, and the other end is provided with a display screen 31. The display screen 31 is provided at one end close to the first handle, so that the user can directly observe the size of the wind force when using it, which is convenient for the user to use.

[0042] The central axis of the filter assembly intersects with the central axis of the air intake pipe / body respectively. Specifically, preferably, the central axis of the filter assembly and the central axis of the air intake pipe / body are perpendicular to each other.

[0043] In a specific embodiment, when the dust-laden gas enters the dust cup 14 through the air inlet pipe 2, due to the high velocity of the dust-laden airflow, negative pressure can be generated, and the dust-laden airflow enters the multi-cone 13, and a small whirlwind that rotates upward is generated in the multi-cone 13, and the dust and various impurities rotate in the vortex. Due to the different masses of various dust and impurities, the large weight particles have a large centrifugal force and will be thrown out of the cyclone center and fall into the dust cup. Large and relatively large mass particles fall into the dust cup 14 due to the large centrifugal force, and small mass particles continue to rise with the airflow. Since the airflow passes through the air inlet cotton 12 before passing through the multi-cone 13 and entering the high-pressure cotton 11, the small mass particles further stay in the dust cup, and then pass through the high-pressure cotton 11. The high-pressure cotton 11 can block smaller particles than the air inlet cotton 12, and the dust in the gas is retained in the dust cup 14 after multi-stage filtration.

[0044] Since the motor 33 and the battery pack 34 are located close to the user's force point, and the size and weight of the motor 33 are reduced, the internal structure is more compact, making the overall appearance of the vacuum cleaner smaller and lighter, and the user will not feel tired after long-term use.

[0045] Embodiment 2

[0046] According to one embodiment of the present invention, Figure 2 As shown in the figure, it can be seen that the handheld vacuum cleaner includes:

[0047] The filter assembly 1 comprises a dust cup 14 and a multi-cone 13. The dust cup 14 is hollow inside to form a dust collecting chamber.

[0048] The air intake pipe 2 is arranged directly in front of the filter assembly 1. The air intake pipe 2 is a hollow tubular structure. The central axis of the air intake pipe 2 intersects with the central axis of the dust cup 14. It is particularly preferred that the central axis of the air intake pipe 2 and the central axis of the dust cup 14 are arranged perpendicular to each other.

[0049] The hand-held part 3 is arranged right behind the filter assembly 1 , and the body 35 of the hand-held part 3 is connected with the filter assembly 1 .

[0050] Although not shown in the figure, it should be understood that an access port is provided between the air inlet pipe 2 and the dust cup 14 of the filter assembly 1 , and an access port should also be provided between the main body 35 of the handheld part 3 and the dust cup 14 of the filter assembly 1 .

[0051] Furthermore, the dust cup 14 should be in a closed state except for the access opening between the air inlet pipe 2 and the main body 35 to form a chamber for collecting dust, avoid dust leakage, and enable dust to be processed centrally.

[0052] Among them, the multi-cone 13 is coaxially arranged in the dust cup 14 along the axial direction, so that the airflow entering the filter assembly 1 from the air intake pipe 2 can smoothly pass through the multi-cone 13 and other filter elements in sequence, realize layer-by-layer filtration of the dust-containing airflow, improve the filtering effect, and also reduce the probability of noise generated by large gaps between internal structures, thereby improving the user experience.

[0053] The filter assembly 1 is further provided with air inlet cotton 12 , which is located on the multi-cone and at the air outlet of the multi-cone 13 .

[0054] Furthermore, the air inlet cotton 12 is coaxially arranged with the dust cup 14 and the multi-cone 13. The air inlet cotton 12 first performs a first-stage filtration when the dust-laden airflow enters the filter assembly 1, thereby blocking most of the dust in the airflow, and most of the dust is blocked in the dust cup.

[0055] Furthermore, the motor 33 can reduce the size and weight of the motor while ensuring the normal operation of the vacuum cleaner, thereby reducing the weight burden on the user when using the handheld vacuum cleaner. The motor 33 is arranged in the first handle 32 of the handheld portion 3, avoiding the center of gravity shift caused by the motor being arranged at the front and increasing the weight burden during use. When the user holds the first handle 32 of the handheld portion 3, the motor 33 is held in the hand at the same time, so that the center of gravity of the entire machine is at the user's hand position, reducing the weight burden during use and improving the user experience.

[0056] A battery pack 34 is connected below the first handle 32 of the handheld portion 3. The battery pack 34 is perpendicular to the filter assembly 1. The battery pack 34 and the body 35 are arranged parallel to the two ends of the first handle. The battery pack 34 is arranged below the first handle 32 to reduce the use of the connection line between the battery pack 34 and the motor 33.

[0057] The battery pack 34 is arranged at the bottom of the entire vacuum cleaner. As is well known, the weight of the battery is relatively heavy. The battery pack 34 is arranged at the bottom of the vacuum cleaner so that the center of gravity of the vacuum cleaner is lowered, and the battery pack 34 can support the overall weight of the vacuum cleaner when not in use. The battery pack 34 is arranged in a flat rectangular shape with a flat bottom surface, so that the battery pack 34 can be placed anywhere without adjusting the vacuum cleaner.

[0058] One end of the body 35 is connected to the filter assembly 1, and the other end is provided with a display screen 31. The display screen 31 is provided at one end close to the first handle, so that the user can directly observe the size of the wind force when using it, which is convenient for the user to use.

[0059] The filter assembly further includes a Hypa 11 , wherein the Hypa 11 is coaxially arranged with the display screen 31 at one end of the body 35 close to the first handle 32 .

[0060] The central axis of the filter assembly 1 intersects with the central axis of the air intake pipe 2 / the body 35 , respectively. Specifically, preferably, the central axis of the filter assembly 1 and the central axis of the air intake pipe 2 / the body 35 are perpendicular to each other.

[0061] In a specific embodiment, when the dust-laden gas enters the dust cup 14 through the air inlet pipe 2, due to the high velocity of the dust-laden airflow, negative pressure can be generated, and the dust-laden airflow enters the multi-cone 13, and a small whirlwind that rotates upward is generated in the multi-cone 13, and the dust and various impurities rotate in the vortex. Due to the different masses of various dust and impurities, the large weight particles have a large centrifugal force and will be thrown out of the cyclone center and fall into the dust cup. Large and relatively large mass particles fall into the dust cup 14 due to the large centrifugal force, and small mass particles continue to rise with the airflow. Since the airflow passes through the air inlet cotton 12 before passing through the multi-cone 13 and entering the high-pressure cotton 11, the small mass particles further stay in the dust cup, and then pass through the high-pressure cotton 11. The high-pressure cotton 11 can block smaller particles than the air inlet cotton 12, and the dust in the gas is retained in the dust cup 14 after multi-stage filtration.

[0062] Since the motor 33 and the battery pack 34 are located close to the user's force point, and the size and weight of the motor 33 are reduced, the internal structure is more compact, making the overall appearance of the vacuum cleaner smaller and lighter, and the user will not feel tired after long-term use.

[0063] Embodiment 3

[0064] According to one embodiment of the present invention, Figure 3 As shown in the figure, it can be seen that the handheld vacuum cleaner includes:

[0065] The filter assembly 1 comprises a dust cup 14 and a multi-cone 13. The dust cup 14 is hollow inside to form a dust collecting chamber.

[0066] The air inlet pipe 2 is arranged in front of the filter assembly 1. The air inlet pipe 2 is a hollow tubular structure, and the central axis of the air inlet pipe 2 and the central axis of the dust cup 14 are on the same axis.

[0067] The hand-held part 3 is arranged right behind the filter assembly 1 , and the body 35 of the hand-held part 3 is connected to the filter assembly 1 .

[0068] Although not shown in the figure, it should be understood that an access port is provided between the air inlet pipe 2 and the dust cup 14 of the filter assembly 1 , and an access port should also be provided between the main body 35 of the handheld part 3 and the dust cup 14 of the filter assembly 1 .

[0069] Furthermore, the dust cup 14 should be in a closed state except for the access opening between the air inlet pipe 2 and the main body 35 to form a chamber for collecting dust, avoid dust leakage, and enable dust to be processed centrally.

[0070] The multi-cone 13 is coaxially arranged in the dust cup 14 along the axial direction, and a motor 33 is arranged in the first handle 32 of the handheld part 3.

[0071] The filter assembly 1 is also provided with air inlet cotton 12, and the air inlet cotton 12 is located on the multi-cone 13 and at the air outlet of the multi-cone 13, so that the airflow entering the filter assembly 1 from the air inlet pipe 2 can smoothly pass through the multi-cone 13 and other filter elements in sequence, thereby achieving layer-by-layer filtration of the dust-containing airflow, improving the filtration effect, and also reducing the probability of noise generated by large gaps between internal structures, thereby improving the user experience.

[0072] Furthermore, the air inlet cotton 12 is coaxially arranged with the dust cup 14 and the multi-cone 13. The air inlet cotton 12 first performs a first-stage filtration when the dust-laden airflow enters the filter assembly 1, thereby blocking most of the dust in the airflow, and most of the dust is blocked in the dust cup.

[0073] Furthermore, the motor 33 can reduce the size and weight of the motor while ensuring the normal operation of the vacuum cleaner, thereby reducing the weight burden on the user when using the handheld vacuum cleaner. The motor 33 is arranged in the handle 32 of the handheld part 3, avoiding the center of gravity shift caused by the motor being arranged at the front and increasing the weight burden during use. When the user holds the handle 32 of the handheld part 3, the motor 33 is held in the hand at the same time, so that the center of gravity of the entire machine is at the user's hand position, reducing the weight burden during use and improving the user experience.

[0074] A display screen 31 is provided at one end of the body 35 of the handheld portion 3 close to the first handle 32. The display screen 31 is provided at one end close to the handle so that the user can directly observe the size of the wind force during use, which is convenient for the user.

[0075] The main body 35 is further provided with an air inlet HEPA 11 , which is coaxially arranged with the display screen 31 in the main body 35 .

[0076] The air inlet HEPA 11 is arranged at the air inlet of the main body 35 .

[0077] A battery pack 34 is connected below the first handle 32 of the handheld portion 3. The battery pack 34 and the body 35 are respectively arranged parallel to the two ends of the first handle 32. The battery pack 34 is arranged below the handle 32 to reduce the use of connecting wires between the battery pack 34 and the motor 33.

[0078] The battery pack 34 is arranged at the bottom of the entire vacuum cleaner. As is well known, the weight of the battery is relatively heavy. The battery pack 34 is arranged at the bottom of the vacuum cleaner so that the center of gravity of the vacuum cleaner is lowered, and the battery pack 34 can support the overall weight of the vacuum cleaner when not in use. The battery pack 34 is arranged in a flat rectangular shape with a flat bottom surface, so that the battery pack 34 can be placed anywhere without adjusting the vacuum cleaner.

[0079] A second handle 321 parallel to the first handle 32 is also provided below the filter assembly 1. Both ends of the second handle 321 are respectively connected to the filter assembly 1 and the battery pack 34. The second handle 321 can support the filter assembly 1, so that the filter assembly 1 is more stable during operation.

[0080] The central axes of the air inlet pipe 2, the filter assembly 1, and the main body 35 of the handheld part 3 are on the same axis, so that the dust-laden airflow flows smoothly when entering the vacuum cleaner.

[0081] In a specific embodiment, when the dust-laden gas enters the dust cup 14 through the air inlet pipe 2, due to the high velocity of the dust-laden airflow, negative pressure can be generated, and the dust-laden airflow enters the multi-cone 13, and a small whirlwind that rotates upward is generated in the multi-cone 13, and the dust and various impurities rotate in the vortex. Due to the different masses of various dust and impurities, the large weight particles have a large centrifugal force and will be thrown out of the cyclone center and fall into the dust cup. Large and relatively large mass particles fall into the dust cup 14 due to the large centrifugal force, and small mass particles continue to rise with the airflow. Since the airflow passes through the air inlet cotton 12 before passing through the multi-cone 13 and entering the high-pressure cotton 11, the small mass particles further stay in the dust cup, and then pass through the high-pressure cotton 11. The high-pressure cotton 11 can block smaller particles than the air inlet cotton 12, and the dust in the gas is retained in the dust cup 14 after multi-stage filtration.

[0082] Since the motor 33 and the battery pack 34 are located close to the user's force point, and the size and weight of the motor 33 are reduced, the internal structure is more compact, making the overall appearance of the vacuum cleaner smaller and lighter, and the user will not feel tired after long-term use.

[0083] Embodiment 4

[0084] According to one embodiment of the present invention, Figure 4 As shown in the figure, it can be seen that the handheld vacuum cleaner includes:

[0085] The filter assembly 1 comprises a dust cup 14 and a multi-cone 13. The dust cup 14 is hollow inside to form a dust collecting chamber.

[0086] The air inlet pipe 2 is arranged directly below the filter assembly 1 and at least partially fits tightly with the filter assembly 1. The central axis of the filter assembly 1 is arranged parallel to the central axis of the air inlet pipe 2. Placing the air inlet pipe 1 below the filter assembly 1 can make the vacuum cleaner as a whole more compact.

[0087] The hand-held part 3 is arranged right behind the filter assembly 1 , and the body 35 of the hand-held part 3 is connected to the filter assembly 1 .

[0088] Although not shown in the figure, it should be understood that an access port is provided between the air inlet pipe 2 and the dust cup 14 of the filter assembly 1 , and an access port should also be provided between the main body 35 of the handheld part 3 and the dust cup 14 of the filter assembly 1 .

[0089] Furthermore, the dust cup 14 should be in a closed state except for the access opening between the air inlet pipe 2 and the main body 35 to form a chamber for collecting dust, avoid dust leakage, and enable dust to be processed centrally.

[0090] The multi-cone 13 is coaxially arranged in the dust cup 14 along the axial direction, and a motor 33 is arranged in the first handle 32 of the handheld part 3.

[0091] The filter assembly 1 is also provided with air inlet cotton 12, and the air inlet cotton 12 is located on the multi-cone 13 and at the air outlet of the multi-cone 13, so that the airflow entering the filter assembly 1 from the air inlet pipe 2 can smoothly pass through the multi-cone 13 and other filter elements in sequence, thereby achieving layer-by-layer filtration of the dust-containing airflow, improving the filtration effect, and also reducing the probability of noise generated by large gaps between internal structures, thereby improving the user experience.

[0092] Furthermore, the air inlet cotton 12 is coaxially arranged with the dust cup 14 and the multi-cone 13. The air inlet cotton 12 first performs a first-stage filtration when the dust-laden airflow enters the filter assembly 1, thereby blocking most of the dust in the airflow, so that most of the dust is blocked in the dust cup.

[0093] Furthermore, the motor 33 can reduce the size and weight of the motor while ensuring the normal operation of the vacuum cleaner, thereby reducing the weight burden on the user when using the handheld vacuum cleaner. The motor 33 is arranged in the first handle 32 of the handheld portion 3, avoiding the center of gravity shift caused by the motor being arranged at the front and increasing the weight burden during use. When the user holds the first handle 32 of the handheld portion 3, the motor 33 is held in the hand at the same time, so that the center of gravity of the entire machine is at the user's hand position, reducing the weight burden during use and improving the user experience.

[0094] A display screen 31 is provided at one end of the body 35 of the handheld portion 3 close to the first handle 32. The display screen 31 is provided at one end close to the handle so that the user can directly observe the size of the wind force during use, which is convenient for the user.

[0095] A battery pack 34 is connected below the first handle 32 of the handheld portion 3. The battery pack 34 and the body 35 are respectively arranged parallel to the two ends of the first handle 32. The battery pack 34 is arranged below the first handle 32 to reduce the use of connecting wires between the battery pack 34 and the motor 33.

[0096] Furthermore, the battery pack 34 is arranged at the bottom of the entire vacuum cleaner. As is well known, the weight of the battery is relatively heavy. The battery pack 34 is arranged at the bottom of the vacuum cleaner so that the center of gravity of the vacuum cleaner is lowered, and the battery pack 34 can support the overall weight of the vacuum cleaner when not in use. The battery pack 34 is arranged in a flat rectangular shape with a flat bottom surface, so that it can be placed anywhere without adjusting the vacuum cleaner.

[0097] Furthermore, an air inlet Hpa 11 is also provided in the main body 35 . The air inlet Hpa 11 is coaxially arranged in the main body 35 with the display screen 31 . The air inlet Hpa 11 is arranged at the air inlet of the main body 35 .

[0098] A second handle 321 parallel to the first handle 32 is also provided below the filter assembly 1. Both ends of the second handle 321 are respectively connected to the filter assembly 1 and the battery pack 34. The second handle 321 can support the filter assembly 1, so that the filter assembly 1 is more stable during operation.

[0099] The central axis of the filter assembly 1 is arranged parallel to the central axis of the air inlet pipe 2, so that the dust-laden airflow flows smoothly when entering the vacuum cleaner.

[0100] Furthermore, in a specific embodiment, when the dust-laden gas enters the dust cup 14 through the air inlet pipe 2, due to the high velocity of the dust-laden airflow, negative pressure can be generated, and the dust-laden airflow enters the multi-cone 13, and a small whirlwind that rotates upward is generated in the multi-cone 13, and the dust and various impurities rotate in the vortex. Due to the different masses of various dust and impurities, large-weight particles have a larger centrifugal force and will be thrown out of the cyclone center and fall into the dust cup. Large-mass and relatively large-mass particles fall into the dust cup 14 due to the larger centrifugal force, and small-mass particles continue to rise with the airflow. Since the airflow passes through the air inlet cotton 12 before passing through the multi-cone 13 and entering the high-pressure cotton 11, the small-mass particles further stay in the dust cup, and then pass through the high-pressure cotton 11. The high-pressure cotton 11 can block smaller particles than the air inlet cotton 12, and the dust in the gas is retained in the dust cup 14 after multi-stage filtration.

[0101] Since the motor 33 and the battery pack 34 are located close to the user's force point, and the size and weight of the motor 33 are reduced, the internal structure is more compact, making the overall appearance of the vacuum cleaner smaller and lighter, and the user will not feel tired after long-term use.

[0102] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0103] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A handheld vacuum cleaner, characterized in that: include: A filter assembly (1) comprising a dust cup (14) and a multi-cone (13), wherein the dust cup (14) is hollow inside to form a dust collecting cavity; An air intake pipe (2), which is arranged in front of the filter assembly (1) and is used to absorb dust-containing gas; A handheld portion (3) is arranged directly behind the filter assembly (1), and is also provided with a first handle (32) for controlling the operation of the vacuum cleaner; The multi-cone (13) is coaxially arranged in the dust cup along the axial direction, and a motor (33) is arranged in the first handle (32) of the handheld part (3); A battery pack (34) is connected below the first handle (32) of the handheld portion (3), and the battery pack (34) and the body (35) are respectively arranged in parallel at two ends of the first handle (32).

2. The handheld vacuum cleaner according to claim 1, characterized in that: The filter assembly (1) is also provided with air inlet cotton (12).

3. The handheld vacuum cleaner according to claim 2, characterized in that: The air inlet cotton (12) is located on the multi-cone (13) and at the air outlet of the multi-cone (13).

4. The handheld vacuum cleaner according to claim 3, characterized in that: The air inlet cotton (12), the dust cup (14) and the multi-cone (13) are coaxially arranged.

5. The handheld vacuum cleaner according to claim 1, characterized in that: A display screen (31) is provided at one end of the body (35) of the handheld portion (3) close to the first handle (32).

6. The handheld vacuum cleaner according to claim 1, characterized in that: An air inlet hepa (11) is provided behind the multi-cone (13) along the flow direction of the airflow.

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