CN210673211U

CN210673211U - Mini dust collector

Info

Publication number: CN210673211U
Application number: CN201921241020.2U
Authority: CN
Inventors: 刘卫
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-06-05
Anticipated expiration: 2029-08-01

Abstract

The utility model provides a mini dust collector, which comprises a shell, a motor, a wind wheel and a filter, wherein the shell is an integral piece which is provided with a cylindrical installation inner cavity and two openings, and the two openings are respectively used as an air inlet end and an air outlet end; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical mounting inner cavity, the shell of the motor is attached to or arranged in a gap with the cylindrical mounting inner cavity, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, the other end of the airflow channel is communicated with an air outlet end, the wind wheel is positioned between one end of the airflow channel and the air outlet side of the filter, and an air suction chamber is formed between one end of the airflow channel and the air outlet side of the filter; sealing connection between the air-out side of filter and the cylindric installation inner chamber forms the dirt storehouse between filter and the cylindric installation inner chamber, and the advantage is: the shell is fully utilized to achieve the purposes of improving the structural compactness and realizing the function, thereby providing a new technical means for reducing the volume.

Description

Mini dust collector

Technical Field

The utility model relates to a dust catcher technical field specifically says to a mini dust catcher.

Background

The mini dust collector is one kind of dust collector, and its main characteristic lies in that the volume is less, it is easy to take in, it is good to carry the performance, the mini dust collector includes the body, the body installs the electric motor, the wind wheel, the filter mainly in, after the electricity, the electric motor drives the wind wheel to rotate, the wind wheel rotates to produce the suction, the air sucks from one end, the other end discharges at a high speed, therefore the air of the dust collection part (formed by the suction nozzle and the dust storehouse) of the front end of the mini dust collector is sucked constantly, cause the inside of the mini dust collector to produce the instantaneous vacuum, and the external atmospheric pressure forms the negative pressure, in the process that the air is sucked constantly, debris such as the dust are detained in the dust storehouse, the air is discharged by the tail of the mini dust collector after the filter filters, the dust storehouse is the trade term, and does not mean that can only store the dust.

We exemplify several mini-cleaners that have been disclosed, illustrating the difficulties and deficiencies found by the applicant:

1. the patent document, entitled multipurpose mini vacuum cleaner under utility model No. CN 202341943U, describes that it includes a cylindrical housing 1, and the housing 1 is composed of two halves 2 which are split and folded together and a rear cover 3 which is installed behind the two halves 2. The front part of a shell 1 is provided with an air suction cover 4, an air blade cavity 5 is arranged in the air suction cover 4, filter screens 6 are arranged around the air blade cavity 5, an air blade 7 is arranged in the air blade cavity 5, an air suction opening 8 is arranged at the front end of the air suction cover 4, the air suction opening 8 is communicated with the air blade cavity 5, a motor 9 is arranged in the shell 1, a rotating shaft 10 of the motor 9 is connected with the air blade 7, a battery box 12 for installing a dry battery 11 is arranged in the shell l, a sliding plate switch assembly 13 for controlling the motor 9 to rotate is arranged on the shell 1, and brushes 14 are arranged around the air suction opening 8 on the front end surface. An air outlet 150 communicated with the fan blade cavity 5 is arranged on the shell 1 opposite to the fan blade cavity 5, and a protective cover 16 covering the air suction cover 4 can be arranged at the front end of the air suction cover 4 and covers when not used.

2. No. CN 208590990U, utility model name is a vehicle-mounted vacuum cleaner, this patent document describes, including casing 1, fan 2, filter 3, casing 1 is the cartridge type structure, casing 1 front end is provided with inhales grey mouth 4 and inside coaxial setting gradually to the back by preceding filter 3, fan 2, filter 3 will casing 1 is by the dust separation of front end opening entering and messenger fan 2 produced air current by filter 3 passes through, inhale grey mouth 4 is the cavity suction nozzle structure, inhale grey mouth 4 the cavity with form confined ash storehouse 5 between the filter 3, casing 1 rear end is provided with power module 7.

The shell l, the fan 2 and the filter 3 are arranged from front to back and form an internal cavity, and the suction nozzle 4 is of a streamline structure and is used for sucking ash. The filter blocks dust in the dust bin 5, and the structure is a base for mounting the power module 7 at the rear, and is different from a traditional common vehicle-mounted dust collector. The rear part of the general vehicle-mounted dust collector is not provided with the power supply module 7, so that the wind resistance is smaller, an air outlet is arranged, and the design of a simple shell is not needed.

3. The utility model is a mini-sized dust collector with the name of 92214546.6, which is described in the patent document, a cylindrical shell (1) is made of engineering plastics, and the interior of the shell is divided into two grids, wherein one grid is a battery box (2) which can be used for accommodating two batteries No. 1, and the structure of the shell is similar to that of a common flashlight; the other grid is a motor room (3), a motor (4) provided with fan blades and an arc streamline surface is pushed along a guide edge of the inner wall of the shell (a certain gap is reserved between the motor and the shell), and a screw pin (6) positioned on the shell is screwed in after the motor is in place, so that the motor is fixed on the shell. Uncovering the movable block (6) at the joint of the motor and the battery box, connecting the motor wire end into the three-position contact switch (7), and then installing the movable block (6). Four small holes (8) are drilled on the shell at the joint part of the fan case, and the fan case plays a role in ventilating and cooling the motor. This assembles the axial flow fan. Then the horn mouth of the horn-shaped connector (9) with the fabric filter screen (10) is connected with the shell mouth by a hook (11) and a button (12), and an elastic sealing ring (13) is padded at the interface. The small-diameter end of the connector is tapped with threads and is connected with an elbow suction brush (14) or a straight extension suction brush (15). The elbow suction brush has 150 degrees of curvature, and the brush head is triangular, so that dust on small areas and small corners can be adsorbed. The straight-extending suction brush (15) has a rod diameter reduced to an ellipse (the major diameter is 1.2cm, the minor diameter is O.8cm), the length is about 25cm, the brush head is also elliptical, five claw teeth (16) at the brush end are about lmm lower than the brush hair, and the brush can be used for scratching except absorbing dust in tiny spaces.

From the above, we can find that 1) the mini dust collector is small, but the related parts are more, so that the further improvement is difficult; 2) in the prior art of mini dust collectors, the research on the relation between the shell and other components is not enough, that is, the shell is not fully utilized to achieve the purposes of improving the structure compactness and realizing the functions, so that the technical means of reducing the volume is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's defect, provide a mini dust catcher, make full use of casing reaches the purpose that promotes compact structure nature, realization function to provide a new technological means for reducing the volume.

In order to solve the technical problem, the utility model provides a mini dust collector, which comprises a shell, a motor, a wind wheel and a filter, wherein the shell is an integral piece which is provided with a cylindrical installation inner cavity and two openings at two ends, and the openings at two ends are respectively used as an air inlet end and an air outlet end; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical mounting inner cavity, the shell of the motor is attached to or arranged in a gap with the cylindrical mounting inner cavity, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, the other end of the airflow channel is communicated with an air outlet end, the wind wheel is positioned between one end of the airflow channel and the air outlet side of the filter, and an air suction chamber is formed between one end of the airflow channel and the air outlet side of the filter; the air outlet side of the filter is hermetically connected with the cylindrical installation inner cavity, and a dust bin is formed between the filter and the cylindrical installation inner cavity.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: by designing the relationship between the shell and the filter of the motor and changing the design of the airflow channel, the compactness is improved while the function is realized, thereby providing a new technical means for reducing the volume.

As an improvement, the cylindrical mounting inner cavity is provided with a first mounting surface for supporting and mounting the side, far away from the air inlet end, of the shell of the motor, the other side of the shell of the motor forms a second mounting surface towards one side of the air inlet end, the air inlet end is connected with a first sleeve with openings at two ends, the opening of the first sleeve, which is positioned at the air inlet end, is used as an air inlet opening, the filter is sleeved in the first sleeve, the end part, far away from the air inlet end, of the first sleeve is used as a third mounting surface, and the circumferential direction of the filter is, the circumferential installation part is clamped and fixed by the second installation surface and the third installation surface, so that on one hand, the connection structure is simple and compact, simultaneously, the strength of the assembly and the shell after connection is ensured, the wall thickness of the shell is reduced, thereby being more beneficial to the compactness of the whole structure and the weight control, on the other hand, the production and the assembly are convenient, and on the other hand, the filter is convenient to assemble and disassemble;

or, the cylindrical mounting inner cavity is provided with a fourth mounting surface for supporting and mounting the side of the circumferential mounting part close to the air inlet end, the air outlet end is connected with a second sleeve with two open ends, the opening of the second sleeve positioned at the air outlet end is used as an air outlet opening, the end part of the second sleeve far away from the opening of the air outlet end is used as a fifth mounting surface, and the shell of the motor is clamped and fixed by the other side of the circumferential mounting part and the fifth mounting surface, so that the connection structure is simple and compact, the strength of the component after being connected with the shell is guaranteed, the wall thickness of the shell is reduced, the compactness and the weight control of the whole structure are facilitated, and the production and the;

or, have the first sleeve simultaneously, the second sleeve, cancel and set up in the corresponding installation face of cylindric installation inner chamber, the circumference installation department, the casing of motor is held fixedly by first sleeve, second sleeve according to the preface, like this, cancel and set up in the corresponding installation face of cylindric installation inner chamber, then simplified the processing requirement to the shell, further be favorable to reducing the shell wall thickness simultaneously, other advantages then, on the one hand, connection structure is simple compact, be favorable to guaranteeing the intensity after subassembly and shell are connected simultaneously, consider again aforementioned further be favorable to reducing the shell wall thickness, thereby more be favorable to overall structure's compactedness, if first sleeve, the second sleeve adopts the lightweight material, then more be favorable to overall structure's weight control, on the other hand, production convenient assembling, on the other hand, conveniently install and remove the filter again.

As the improvement, the casing of the motor adopts an integral cylinder part, the axial half section is H-shaped and is separated by an H-shaped cross bar part, an end cover is arranged at the lower end opening of the H-shaped, the end cover and the cross bar part are used for rotatably supporting the rotor, the part above the H-shaped cross bar part is used for being connected with the filter and simultaneously participates in forming an air suction chamber, thus, the casing of the motor needs to be designed from the design of the shell, and the casing has the advantages of simple structure, contribution to realizing the function, contribution to the compact structure design and convenience in production and assembly.

As an improvement, the air outlet side of the filter is positioned at one end of the filter far away from the air inlet end, and the part of the cylindrical installation inner cavity positioned between the end and the air inlet end is used as a dust bin; the circumference of air-out side is equipped with the circumference installation department, and sealing connection between this circumference installation department and the cylindric installation inner chamber, like this, on the one hand, is favorable to the dirt storehouse volume to be done greatly, can hold more, and on the other hand, air-out side and circumference installation department unite two into one, need not to go other positions and additionally set up the circumference installation department, simplify the structure, reduce the weight of filter.

As the improvement, the filter is provided with a handle part positioned on one side of the air inlet end, so that the filter is convenient to disassemble and assemble.

As the improvement, the filter is including the lid, filter core and seat, the lid, filter core and seat are connected according to the preface, the lid is equipped with the stalk portion that is located air inlet end one side, the seat is equipped with the air outlet, the circumference of seat is equipped with the circumference installation department, sealing connection between this circumference installation department and the cylindric installation inner chamber, like this, be applicable to the design point of this application at first, be favorable to realizing the function from the casing angle, compact still ensure certain dirt storehouse volume simultaneously promptly, in addition then such simple structure, the filter surface can be done great (the filter effect is good).

As the improvement, the air-out end is connected with the control lid, and the control lid is equipped with the exhaust vent, and the control lid still is equipped with the switch of power cord and control power cord break-make, and the power cord is connected with the motor electricity, like this, provides the position distribution preferred scheme of a control part structure, and such design makes shell side direction surface need not the trompil, the shell wholeness is good, and convenient operation is then to additional advantage, and the power cord also need not turn the quarter bend.

As an improvement, the on-off operation part of the switch is arranged in the middle, and the air outlet holes are distributed around the on-off operation part, so that a preferable scheme is provided, smooth air outlet is facilitated, and the switch operation is convenient;

or the on-off operation part of the switch is arranged in a non-centered mode, and the air outlet and the on-off operation part are distributed separately, so that another preferable scheme is provided, and the switch is convenient to install.

As the improvement, the shell adopts an axially through cylinder, and the axially through hole is used as a cylindrical installation inner cavity, so that the shape is regular and easy to manufacture, and the treatment of the outer surface is facilitated, such as baking finish, anodic oxidation and the like, so that the texture and bright spots of the product are improved in the surface treatment of the shell.

As the improvement, the cylinder adopts the metal pipe fitting, so, be favorable to manufacturing, reduce cost, the intensity of shell is secure simultaneously, is favorable to reducing the wall thickness, in addition, the metal pipe fitting can obtain better feel after surface treatment, therefore the cylinder adopts the metal pipe fitting still to be favorable to promoting the grade sense of whole product.

Drawings

Fig. 1 is a front view of the mini vacuum cleaner of the present invention.

Fig. 2 is a bottom view of the mini vacuum cleaner of the present invention.

Fig. 3 is a top view of the mini vacuum cleaner of the present invention.

Fig. 4 is a half-sectional view of the mini vacuum cleaner of the present invention.

Fig. 5 is an enlarged view a of fig. 4.

Fig. 6 is an enlarged view B of fig. 4.

Fig. 7 is a perspective view of the mini vacuum cleaner with the housing removed.

Fig. 8 is a half sectional view of fig. 7.

Fig. 9 is a perspective view of fig. 7 with the first sleeve and the housing of the motor removed.

Fig. 10 is a half sectional view of a housing of the motor.

The air purifier comprises a shell, a motor, a fan, a wind wheel, a cover, a filter element, a base, a handle, a circumferential installation part, a sealing ring, a wind flow channel, an air suction chamber, a dust bin, a first installation surface, a second installation surface, a first sleeve, a third installation surface, a control cover, an air outlet, a power line, a switch, a rotor, a permanent magnet, a control cover 18, an air outlet, a transverse bar part, a power line, a switch 21, a rotor, a permanent magnet, a control cover 23, a transverse bar part, a stop block, a stop.

Detailed Description

The following is a more detailed description of the present invention:

the utility model discloses a mini dust collector, which comprises a shell 1, a motor 2, a wind wheel 3 and a filter, wherein the shell 1 is an integral piece which is provided with a cylindrical installation inner cavity and two openings, and the two openings are respectively used as an air inlet end and an air outlet end; the filter, the wind wheel 3 and the motor 2 are sequentially positioned in the cylindrical mounting inner cavity, a shell of the motor 2 is attached to or arranged in a clearance with the cylindrical mounting inner cavity, in this example, the shell of the motor 2 is in close fit connection with a rotor 21 of the motor 2, the interval between the shell of the motor 2 and the rotor 21 of the motor 2 is used as an airflow channel 10, one end of the airflow channel 10 is communicated with the wind wheel 3, the other end of the airflow channel 10 is communicated with an air outlet end, the wind wheel 3 is positioned between one end of the airflow channel 10 and the air outlet side of the filter, and an air suction chamber 11 is formed between; the air outlet side of the filter is hermetically connected with the cylindrical installation inner cavity, and a dust bin 12 is formed between the filter and the cylindrical installation inner cavity. A permanent magnet 22 is mounted in the housing of the motor 2. The motor 2 may be of a carbon brush structure or a carbon-brush-free structure, and in this example, the structure is a carbon brush structure.

The casing of motor 2 adopts integral barrel spare, the axial half-section is the H shape, divide by the whippletree part 23 of H shape, as shown in the figure, the lower extreme opening of H shape is equipped with end cover 25, electrode 26 and carbon brush are installed to end cover 25, end cover 25 and whippletree part 23 are used for rotating support rotor 21, permanent magnet 22 is installed in the space between end cover 25 and the whippletree part 23 of H shape, be equipped with two dogs 24 of circumference equipartition in the casing of motor 2, these two dogs 24 separate two permanent magnets 22, and simultaneously, dog 24 can also play limiting displacement. The upper part of the H-shaped bar portion 23 is intended to be connected to a filter and at the same time to participate in the formation of the suction chamber 11.

The cylindrical mounting inner cavity is provided with a first mounting surface 13 for supporting and mounting the side, far away from the air inlet end, of the shell of the motor 2, the other side of the shell of the motor 2 forms a second mounting surface 14 towards one side of the air inlet end, the air inlet end is connected with a first sleeve 15 with openings at two ends, the opening, located at the air inlet end, of the first sleeve 15 serves as an air inlet opening, the filter is sleeved in the first sleeve 15, the end part, far away from the air inlet end, of the first sleeve 15 serves as a third mounting surface 16, a circumferential mounting part 8 is arranged in the circumferential direction of the filter, and the circumferential mounting part 8 is clamped and fixed by the second mounting surface 14; in this example, the housing 1, the motor 2 and the filter are connected by this structure, and the suction chamber 11 is formed. Of course, other configurations are possible, such as:

1) the cylindric installation inner chamber is equipped with the fourth installation face that supports this one side that installation circumference installation portion 8 is close to the air inlet end, and the air-out end is connected with both ends open-ended second sleeve, and the telescopic opening that is located the air-out end of second is as the air-out opening, and the open-ended tip of keeping away from the air-out end of second sleeve is as the fifth installation face, and motor 2's casing is fixed by the opposite side of circumference installation portion 8, the centre gripping of fifth installation face.

2) Meanwhile, the motor is provided with a first sleeve 15 and a second sleeve, the corresponding mounting surfaces arranged in the cylindrical mounting inner cavity are cancelled, and the circumferential mounting part 8 and the shell of the motor 2 are sequentially clamped and fixed by the first sleeve 15 and the second sleeve.

The mounting surfaces and the upper and lower end surfaces of the housing of the motor 2 for connection may be continuous annular lands or may be lands arranged at intervals, i.e. the portions of the lands have partitions, preferably continuous annular lands.

The air inlet opening is provided with a check sheet 27, the check sheet 27 is used for sealing before the suction pipe is inserted, so that the dirt in the dust bin 12 is prevented from being poured out, when the suction pipe is inserted, the suction pipe is opened, the check sheet 27 can be made of elastic silica gel sheets, and the suction pipe can be made of suction pipes with different suction nozzle shapes, so that the suction pipe is not drawn in the drawing, but the understanding of the scheme of the application by general technicians in the industry is not hindered.

The air outlet side of the filter is positioned at one end of the filter far away from the air inlet end, and the part of the cylindrical installation inner cavity between the end and the air inlet end is used as a dust bin 12.

The circumference of air-out side is equipped with circumference installation department 8, and sealing connection between this circumference installation department 8 and the cylindric installation inner chamber adopts sealing washer 9 to realize this sealing connection.

The filter is provided with a handle part 7 positioned on one side of the air inlet end, and in the embodiment, the handle part 7 is a hollow cylinder, so that the weight is reduced.

The filter includes lid 4, filter core 5 and seat 6, and lid 4, filter core 5 and seat 6 connect according to the preface, and lid 4 is equipped with the stalk portion 7 that is located air inlet end one side, and seat 6 is equipped with air outlet 28, and the circumference of seat 6 is equipped with circumference installation department 8, sealing connection between this circumference installation department 8 and the cylindric installation inner chamber.

The air outlet 28, the wind wheel 3 and the motor 2 are coaxially arranged, and the air outlet 28 is opposite to the air inlet of the wind wheel 3, so that air flowing is facilitated, and the efficiency is improved.

The air outlet end is connected with a control cover 17, the control cover 17 is provided with an air outlet 18, the control cover 17 is further provided with a power line 19 and a switch 20 for controlling the on-off of the power line 19, the power line 19 is electrically connected with the motor 2, the on-off operation part of the switch 20 is arranged in the middle, and the air outlet 18 is distributed around the on-off operation part. In this embodiment, the structure is adopted, and the air outlet 18 is circular and has a plurality of air outlets 18, and the air outlets 18 are uniformly distributed around the circumference of the on-off operation part. It is noted that the power supply line 19 is not connected to the electrode 26 in the figures for the sake of simplicity of illustration, but this does not prevent a correct understanding of the solution of the present application.

Of course, other configurations are possible, such as: the on-off operation part of the switch 20 is not arranged in the center, and the air outlet 18 and the on-off operation part are distributed separately.

The housing 1 is a cylindrical body having an axial through hole, and the axial through hole serves as a cylindrical mounting cavity.

The cylinder adopts metal pipe fittings, such as aluminum alloy pipe, nonrust steel pipe etc. preferably adopts aluminum alloy pipe, has light in weight, intensity height, advantage with low costs.

In the embodiment, as an example, the external power line 19 is a solution provided with a battery, for example, a battery unit is disposed in a space between the control cover 17 and the end cover 25, a channel is disposed between the battery unit itself or the housing 1 for exhausting air flow, and the control cover 17 is provided with a charging interface, so as to form a solution provided with a battery.

The descriptions of first, second, etc. are provided for purposes of distinguishing between similar elements and not for describing a sequential or chronological order, but rather for describing a sequential or chronological order.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. A mini dust collector comprises a shell, a motor, a wind wheel and a filter, and is characterized in that the shell is an integral piece which is provided with a cylindrical installation inner cavity and two openings at two ends, wherein the openings at two ends are respectively used as an air inlet end and an air outlet end; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical mounting inner cavity, the shell of the motor is attached to or arranged in a gap with the cylindrical mounting inner cavity, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, the other end of the airflow channel is communicated with an air outlet end, the wind wheel is positioned between one end of the airflow channel and the air outlet side of the filter, and an air suction chamber is formed between one end of the airflow channel and the air outlet side of the filter; the air outlet side of the filter is hermetically connected with the cylindrical installation inner cavity, and a dust bin is formed between the filter and the cylindrical installation inner cavity.

2. The mini dust collector as claimed in claim 1, wherein the cylindrical mounting cavity is provided with a first mounting surface for supporting and mounting the side of the housing of the motor away from the air inlet end, the other side of the housing of the motor forms a second mounting surface towards the side of the air inlet end, the air inlet end is connected with a first sleeve with openings at two ends, the opening of the first sleeve at the air inlet end is used as an air inlet opening, the filter is sleeved in the first sleeve, the end part of the opening of the first sleeve away from the air inlet end is used as a third mounting surface, and the filter is circumferentially provided with a circumferential mounting part which is clamped and fixed by the second mounting surface and the third mounting surface;

or the cylindrical mounting inner cavity is provided with a fourth mounting surface for supporting and mounting the side, close to the air inlet end, of the circumferential mounting part, the air outlet end is connected with a second sleeve with openings at two ends, the opening, located at the air outlet end, of the second sleeve is used as an air outlet opening, the end part, far away from the opening of the air outlet end, of the second sleeve is used as a fifth mounting surface, and the shell of the motor is clamped and fixed by the other side of the circumferential mounting part and the fifth mounting surface;

or, the first sleeve and the second sleeve are arranged at the same time, the corresponding mounting surfaces arranged in the cylindrical mounting inner cavity are cancelled, and the circumferential mounting part and the shell of the motor are sequentially held and fixed by the first sleeve and the second sleeve.

3. The mini vacuum cleaner as in claim 2, wherein the housing of the motor is a one-piece cylindrical member having an H-shaped axial half-section separated by an H-shaped cross-bar portion, the lower end opening of the H-shape being provided with an end cap, the end cap and the cross-bar portion being adapted to rotatably support the rotor, the portion of the H-shaped cross-bar portion above being adapted to be connected to the filter and simultaneously participate in forming the suction chamber.

4. The mini vacuum cleaner as in claim 1, wherein the air outlet side of the filter is located at an end of the filter remote from the air inlet end, and a portion of the cylindrical mounting cavity located between the end and the air inlet end serves as a dust bin; the circumference of the air outlet side is provided with a circumferential installation part, and the circumferential installation part is hermetically connected with the cylindrical installation inner cavity.

5. The mini vacuum cleaner as in claim 1, wherein the filter has a handle portion on the side of the air intake end.

6. The mini vacuum cleaner as claimed in claim 1, wherein the filter comprises a cover, a filter element, and a base, the cover, the filter element, and the base are sequentially connected, the cover has a handle portion located at one side of the air inlet end, the base has an air outlet, the base has a circumferential mounting portion in a circumferential direction, and the circumferential mounting portion is hermetically connected with the cylindrical mounting cavity.

7. The mini vacuum cleaner as claimed in claim 1, wherein the air outlet end is connected to a control cover, the control cover is provided with an air outlet, the control cover is further provided with a power cord and a switch for controlling the power cord to be turned on or off, and the power cord is electrically connected to the motor.

8. The mini vacuum cleaner as claimed in claim 7, wherein the on/off operation part of the switch is centrally disposed, and the outlet holes are distributed around the on/off operation part;

or the on-off operation part of the switch is arranged in the non-center, and the air outlet and the on-off operation part are distributed separately.

9. The mini vacuum cleaner of claim 1, wherein the housing is an axially extending cylinder, and the axially extending bore serves as a cylindrical mounting cavity.

10. The mini vacuum cleaner as in claim 9, wherein the cylinder is a metal tube.