CN110495816B - Cyclone separation assembly, air inlet filtering device and dust collector - Google Patents
Cyclone separation assembly, air inlet filtering device and dust collector Download PDFInfo
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- CN110495816B CN110495816B CN201910911226.XA CN201910911226A CN110495816B CN 110495816 B CN110495816 B CN 110495816B CN 201910911226 A CN201910911226 A CN 201910911226A CN 110495816 B CN110495816 B CN 110495816B
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- side wall
- cyclone
- dust
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- 239000000428 dust Substances 0.000 title claims abstract description 142
- 238000000926 separation method Methods 0.000 title claims abstract description 67
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims description 48
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 26
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/24—Hand-supported suction cleaners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
The invention relates to a cyclone separation assembly, an air inlet filtering device and a dust collector, belongs to the field of cleaning equipment, and solves the problem that the number and cyclone separation capacity are difficult to be compatible in the arrangement of cyclone cones on the premise of small volume of the existing handheld dust collector. The cyclone separation assembly comprises: a separator cover plate, a tube body portion and a cone portion; the plurality of cone parts are arranged, and each cone part is at least partially arranged outside the pipe body part; the separator cover plate is arranged at the air outlet end of the cyclone separation component; the separator cover plate is provided with cylinder pipes which are in one-to-one correspondence with the cone parts, and the cylinder pipes penetrate into the cone parts. Since a part of the cone portion of the present invention is located outside the wall surface of the pipe body portion, the number of cone portions can be increased in a limited area, and the overall cyclone separation effect can be improved without increasing the diameter of the dust cup.
Description
Technical Field
The invention relates to the technical field of cleaning equipment, in particular to a cyclone separation assembly, an air inlet filtering device and a dust collector.
Background
In the existing hand-held dust collector, in order to not increase the diameter of the dust collecting cup body and enable the volume of the hand-held dust collector to be in a smaller state, the number of cones for realizing the cyclone separation function cannot exceed 5. However, the cyclone separation effect is not ideal due to the limited number of cones.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a cyclone separation assembly, an air inlet filtering device and a dust collector, which are used for solving the problem that the number and cyclone separation capability of the cyclone cone are difficult to be compatible with the arrangement of the cyclone cone on the premise of small volume of the existing handheld dust collector.
The aim of the invention is mainly realized by the following technical scheme:
the technical scheme of the invention provides a cyclone separation assembly, which comprises: a separator cover plate, a tube body portion and a cone portion; the plurality of cone parts are arranged, and each cone part is at least partially arranged outside the pipe body part; the separator cover plate is arranged at the air outlet end of the cyclone separation component; the separator cover plate is provided with cylinder pipes which are in one-to-one correspondence with the cone parts, and the cylinder pipes penetrate into the cone parts.
In the technical scheme of the invention, the cone parts are uniformly distributed along the circumferential direction of the pipe body.
In the technical scheme of the invention, the side wall of the cone part, which is positioned at the outer side of the pipe body part, is provided with a cone air inlet which is tangentially arranged along the side wall of the cone part.
In the technical scheme of the invention, the cone part comprises a cylindrical part and a conical part, and the cylindrical part is closer to the cover plate of the separator than the conical part;
the cone air inlet is arranged on the side wall of the cylindrical part.
In the technical scheme of the invention, the cone air inlet comprises: a first side wall, a second side wall, and an air inlet floor; the second side wall is tangent to the side wall of the cone part; the first side wall and the second side wall are parallel; the air inlet bottom plate is perpendicular to the first side wall.
In the technical scheme of the invention, the width of the air inlet bottom plate is equal to the distance between the first side wall and the second side wall, and the width of the air inlet bottom plate is not more than 11mm.
In the technical scheme of the invention, the width of the air inlet bottom plate is 6-10mm.
In the technical scheme of the invention, the length of the intersection line of the air inlet bottom plate and the first side wall is not more than 8mm; the length of the intersection line of the air inlet bottom plate and the second side wall is not more than 12mm.
In the technical scheme of the invention, the heights of the first side wall and the second side wall are not more than 13mm.
In the technical scheme of the invention, the number of the cone parts is 5-12; the height of the cone part is not more than 65mm; the diameter of the top end face of the cone part is larger than that of the bottom end face of the cone part; the diameter of the top end face of the cone is not more than 21mm, and the diameter of the bottom end face of the cone part is not more than 9mm.
In the technical scheme of the invention, the air inlet bottom plate is closer to the end cover of the separator than the lower end surface of the cylinder pipe; the distance between the air inlet bottom plate and the lower end surface of the cylinder pipe is not more than 9mm.
The technical scheme of the invention provides an air inlet filter device, which comprises: a cyclone separation assembly and a filter screen assembly; the cyclone separation component is the cyclone separation component in the technical scheme of the invention; the filter screen assembly comprises a filter screen cover and a filter frame; the filter screen cover is arranged on the outer side of the filter frame;
the cyclone separation component is arranged inside the filter screen frame.
In the technical scheme of the invention, the bottom end of the pipe body is clamped in a pipe body clamping groove of the filter frame; the top end of the filter frame is provided with a protruding structure, and the protruding structure is clamped in a clamping groove on the side wall of the cover plate of the separator.
In the technical scheme of the invention, a plurality of filtering holes are formed on the filtering screen cover, and the aperture of the filtering holes is 0.1 mm-0.5 mm.
In the technical scheme of the invention, the air inlet filter device further comprises a dust blocking component arranged below the filter frame; the dust blocking component comprises a dust blocking pipe body, a dust blocking ring and a dust blocking plate;
the dust blocking pipe body is arranged at one end of the filter frame far away from the cover plate of the separator, the dust blocking plate is arranged on the outer wall surface of the dust blocking pipe body, and the dust blocking ring is sleeved at the joint of the dust blocking pipe body and the filter frame and is positioned above the dust blocking plate.
The technical scheme of the invention provides a dust collector, which comprises: an upper housing part, a dust cup body and an air inlet filter device; the air inlet filter device is an air inlet filter device in the technical scheme of the invention;
the air inlet filter device is arranged in the dust collecting cup body; the air inlet filter device is connected with the upper shell part through an assembly bulge at the top of the air inlet filter device; the bottom end of the air inlet filter device is abutted on the sealing piece of the inner bottom surface of the dust collecting cup body.
In the technical scheme of the invention, the cone parts are circumferentially and uniformly distributed around the axis of the dust cup body.
The technical scheme of the invention can at least realize one of the following effects:
1. because a part of the cone is positioned outside the wall surface of the pipe body part, the invention can increase the number of the cones in a limited area without increasing the diameter of the dust collecting cup body, thereby improving the integral cyclone separation effect;
2. the cyclone separation device optimizes the specific sizes of the cone part, the cone air inlet and other parts in the cyclone separation assembly, and then can improve the cyclone separation effect of each cone on gas;
3. according to the invention, the dust blocking ring and the dust blocking plate can play a dust falling role, so that dust particles falling into the first dust collecting area are prevented from rotating around the pipe body under the action of negative pressure suction force, and dust is convenient to store.
In the invention, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an exploded view of example 1 of the present invention;
FIG. 3 is a partial schematic view of a cone air inlet according to embodiment 1 of the present invention;
FIG. 4 is a cross-sectional view of example 1 of the present invention;
FIG. 5 is a partial top view of a cone air intake of embodiment 1 of the present invention;
FIG. 6 is a cross-sectional view of embodiment 2 of the present invention;
FIG. 7 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 8 is a schematic view showing the internal structure of embodiment 3 of the present invention;
fig. 9 is a cross-sectional view of embodiment 3 of the present invention.
Reference numerals:
1-a tube body; 2-separator cover plate; 21-a cylinder tube; 22-fitting projections; 23-backing plate; 3-cone portion; 31-a cylindrical portion; 32-conical section; 33-cone air inlet; 331-a first sidewall; 332-a second sidewall; 333-an air inlet floor; 41-filtering a mesh enclosure; 42-a filter frame; 43-pipe body clamping groove; 44-bump structure; 51-a dust blocking ring; 52-a dust blocking pipe body; 53-dust plate; 6-an upper housing part; 7-a dust collecting cup body.
Detailed Description
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the invention, and are not intended to limit the scope of the invention.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the term "coupled" should be interpreted broadly, for example, as being fixedly coupled, as being detachably coupled, as being integrally coupled, as being mechanically coupled, as being electrically coupled, as being directly coupled, as being indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The terms "top," "bottom," "above … …," "below," and "on … …" are used throughout the description to refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are versatile, irrespective of their orientation in space.
For convenience of explanation, in the embodiment of the present invention, it is defined that the cyclone separation assembly is vertically disposed, and the separator cover plate 2 is located above the pipe body 1; defining the suction duct of the cleaner to be directed forward. The cyclone separating assembly or the dust collector can be arranged in practice without the limitation.
Example 1
The prior hand-held dust collector is used for improving the cyclone separation effect, a plurality of smaller cyclone cones are often arranged to increase the cyclone separation level, and in order to reduce the volume of a machine body, a plurality of cyclone cones are often arranged in the cyclone separation assembly, other parts in the cyclone separation assembly are comprehensively considered, the volume and the number of the cyclone cones are both upper limit, and the volume and the number of the cyclone cones are positively related to the cyclone separation effect, so that the technical bottleneck exists in improving the cyclone separation effect.
As shown in fig. 1-5, embodiments of the present invention provide a cyclone separation assembly comprising: a separator cover plate 2, a pipe body part 1 and a cone part 3; the number of the cone portions 3 is plural, and each cone portion 3 is at least partially disposed on the outer side of the pipe body portion 1, which is equivalent to increasing the radius corresponding to the location where the cone portion 3 is disposed, so that the circumference perimeter of the settable cone portion 3 is increased, that is, more cone portions 3 can be disposed under the condition of the same size of the cone portion 3, so as to improve the cyclone separation effect. The separator cover plate 2 is arranged at the air outlet end of the cyclone separation assembly, the separator cover plate 2 is provided with column pipes 21, the column pipes 21 are in one-to-one correspondence with the cone parts 3, the column pipes 21 penetrate into the cone parts 3, and the main body pipes are used for leading out air in the cone parts 3. Because a part of the cone part is located outside the wall surface of the pipe body part 1, the space between the filter screen cover 41 and the cyclone separation assembly is occupied, and the dust storage space of the dust collecting cup of the dust collector is not influenced, and the airflow passage is not influenced, so that the number of cone parts can be increased in a limited area to improve the integral cyclone separation effect. In order to further improve the uniformity of the axial cyclone separation effect, in the embodiment of the invention, the cone portions 3 are uniformly distributed along the circumferential direction of the pipe body 1. In the embodiment of the invention, the separator cover plate 2 is covered on the top of the pipe body 1, and in order to make the installation more stable and firm, a base plate 23 is arranged between the separator cover plate 2 and the pipe body 1, the base plate 23 can be made of elastic materials, and is erected between the separator cover plate 2 and the pipe body 1, so that the sealing effect can be achieved.
In using the embodiment of the present invention, the filter screen 41 is disposed outside the cyclone assembly, and thus it is necessary to provide the cone air inlet 33 to introduce the air passing through the filter screen 41 into the cone portion 3. Specifically, in the embodiment of the present invention, the side wall of the cone portion 3 located at the outer side of the pipe body portion 1 is provided with a cone air inlet 33 tangentially arranged along the side wall of the cone portion 3, and air enters the cone portion 3 through the cone air inlet 33 and is cyclone-separated, so that the generation of the cyclone in the cone portion 3 is facilitated due to the tangentially arranged cone air inlet 33.
Because the cyclone separation assembly has a limited space, the cone portion 3 cannot be arranged in the form of a cone only, in which embodiment the cone portion 3 comprises a cylindrical portion 31 and a conical portion 32, the cylindrical portion 31 being closer to the separator cover plate 2 than the conical portion 32, i.e. the cylindrical portion 31 is further up in use, the conical portion 32 being arranged to generate a cyclone, the cylindrical portion 31 being arranged to increase the axial dimension of the cone portion 3 to increase the cyclone separation effect without excessively increasing the radial dimension of the cone portion 3. The cone air inlet 33 is provided on the side wall of the cylindrical portion 31, and the air-borne dust or particles entering the cone portion 3, after cyclone formation, fall down to the cone portion 32 and fall into the corresponding dust storage space from the opening at the bottom end of the cone portion 32. In order to fully utilize the space inside the pipe body 1, the axis of the conical portion 32 is inclined towards the axis of the pipe body 1 relative to the axis of the cylindrical portion 31, so that the tip of the conical portion 32 can be folded into the pipe body 1, the diameter of the pipe body 1 is not increased significantly, and the inclined arrangement is also beneficial to the sliding of dust from the bottom end of the conical portion 32.
In the embodiment of the invention, the axis of the cylindrical part 31 is parallel to the axis of the cyclone separating assembly, i.e. the cone part 3 is also arranged vertically, so that the radius of the cover plate 2 of the separator can be prevented from being increased. In the existing dust collector, there is a case that the cone parts 3 are arranged obliquely outwards, namely, the circumference formed by the top of the cylindrical part 31 is obviously larger than the circumference formed by the bottom of the cylindrical part 31, compared with the embodiment of the invention, the axial size of the cyclone separation assembly is obviously increased, and a separate air outlet pipeline is required to be arranged for each cone part 3, so that the complexity, the radial size and the axial size of the whole equipment are further increased.
In order to make it easier for the air to cyclone when entering the cone portion 3, in the embodiment of the present invention, the cone air inlet 33 includes: a first side wall 331, a second side wall 332, and an intake floor 333; the second side wall 332 is tangential to the side wall of the cone portion 3; the first side wall 331 and the second side wall 332 are parallel; the intake floor 333 is perpendicular to the first sidewall 331. The top wall of the cone air inlet 33 is restricted by the separator cover plate 2 so that the cross-sectional shape of the cone air inlet 33 is rectangular, and the air passing through the cone air inlet 33 can smoothly transition to the cylindrical portion 31 and form a cyclone in consideration of the tangency of the second side wall 332 with the cone portion 3, thereby improving the cyclone separation effect.
The embodiment of the invention comprehensively considers the actual size of the hand dust collector and the cyclone separation effect, and optimizes the parameters of each part of the cyclone separation assembly:
i. the width of the air inlet bottom plate 333 is equal to the distance between the first side wall 331 and the second side wall 332 and is not more than 11mm, preferably the width of the air inlet bottom plate 333 is 6-10mm;
the intersection length of the air inlet bottom plate 333 with the first side wall 331 is not more than 8mm, preferably the intersection length is 5.3mm; the length of intersection of the air inlet bottom plate 333 with the second side wall 332 is not more than 12mm, preferably the length of intersection is 10.3mm;
the height of both the first side wall 331 and the second side wall 332 is not greater than 13mm, preferably the height of both the first side wall 331 and the second side wall 332 is 11.4mm;
the number of the cone parts 3 is 5-12, preferably 7; the height of the cone portion 3 is not more than 65mm, preferably the height of the cone portion is 60mm;
v. the diameter of the top end face of the cone part 3 is larger than the diameter of the bottom end face of the cone part 3, the diameter of the top end face of the cone is not larger than 21mm, the diameter of the bottom end face of the cone part 3 is not larger than 9mm, preferably, the diameter of the top end face is 19.3mm, and the diameter of the bottom end face is not larger than 7.3mm;
the air inlet bottom plate 333 is closer to the separator end cover than the lower end surface of the cylinder tube 21, and the distance between the air inlet bottom plate 333 and the lower end surface of the cylinder tube 21 is not more than 9mm, preferably the distance between the air inlet bottom plate 333 and the lower end surface of the cylinder tube 21 is 5mm.
The cyclone separation effect of each cone on the gas can be improved after the cone in the cyclone separation assembly is set to the parameters.
Example 2
As shown in fig. 6 and 7, embodiment 2 of the present invention provides an intake air filtering device, which includes: a cyclone separation assembly and a filter screen assembly; the cyclone separation assembly was the cyclone separation assembly of example 1. The filter screen subassembly includes filter screen panel 41 and filtration frame 42, and filter screen panel 41 installs in the outside of filtration frame 42, and cyclone separation subassembly sets up inside the filter screen panel. Considering that the radial dimension of the cyclone separation assembly is represented by the radius of the separator cover plate 2, the cyclone separation effect is improved on the premise that the radial dimension and the axial dimension of the cyclone separation assembly are not increased, so that the cyclone separation effect of the air inlet filter assembly can be improved on the premise that the integral dimension of the air inlet filter assembly is not increased.
In order to facilitate the disassembly and assembly of the air intake filter assembly, in the embodiment of the invention, the bottom end of the pipe body 1 is clamped in the pipe body clamping groove 43 of the filter frame 42, the top end of the filter frame 42 is provided with a protruding structure 44, and the protruding structure 44 is clamped in the clamping groove on the side wall of the separator cover plate 2, so as to complete the assembly of the filter screen 41 assembly and the cyclone separation assembly.
In order to improve the filtering and dust removing effects of the air inlet filtering device, in the embodiment of the invention, the filtering net cover 41 is provided with a plurality of filtering holes, the aperture of the filtering holes is 0.1 mm-0.5 mm, preferably, the filtering holes are uniformly distributed on the filtering net cover 41, and the aperture is 0.3mm. The aperture of the filtering hole is limited in the range, so that fine dust in the gas can be better filtered, and the filtering effect of the cyclone filtering component is improved.
In order to prevent the dust in the dust collecting assembly from flowing back to the cyclone filter assembly, the cyclone filter assembly further comprises a dust blocking assembly disposed below the filter frame 42, specifically, the dust blocking assembly includes a dust blocking tube 52 and a dust blocking ring 51, for example, made of soft rubber, and a dust blocking plate 53, wherein the dust blocking tube 52 is disposed at one end of the filter frame 42 away from the separator cover plate 2, the dust blocking plate 53 is disposed on an outer wall surface of the dust blocking tube 52, and has a length smaller than or equal to that of the dust blocking tube 52, the dust blocking ring 51 is sleeved at a connection portion between the dust blocking tube 52 and the filter frame 42 and is disposed above the dust blocking plate 53, and an outer edge of the dust blocking ring 51 is inclined in a direction away from the separator cover plate 2, that is, the dust blocking ring 51 is inclined downward, and it can be understood that an inside of the tube is a hollow structure for storing dust particles separated by the cone. The dust blocking pipe 52 can be used for isolating the first dust collecting area from the second dust collecting area to prevent large particle dust in the first dust collecting area from entering the second dust collecting area, and can be used for guiding small particle dust falling from the cone part to be concentrated in the second dust collecting area; for the dust blocking ring 51, because the large-particle dust in the first dust collecting area can rotate upwards around the dust blocking pipe body 52 under the action of negative pressure suction, the dust blocking ring 51 can prevent the large-particle dust from entering the filter screen cover 41 again, and the upward rotating large-particle dust stops rotating upwards after contacting with the dust blocking ring 51 and falls into the bottom of the first dust collecting area again; likewise, the dust-blocking plate 53 is provided to prevent the large particle dust from being swirled upward so as to fall again into the bottom of the first dust-collecting area.
Example 3
As shown in fig. 8 and 9, the embodiment of the present invention provides a dust collector, which comprises an upper housing part 6, a dust collecting cup body 7 and an air inlet filter device; the air inlet filter device is the air inlet filter device in the technical scheme. Considering that the width of the dust collector is mainly determined by the diameter of the air inlet filter assembly, the air inlet filter assembly can improve the cyclone separation effect on the premise of not increasing the overall size, so that the dust collector main body part of the embodiment of the invention not only has reduced width, but also has good cyclone separation effect.
Specifically, the air inlet filter device is arranged inside the dust collecting cup body 7, the air inlet filter device is connected with the upper shell part 6 through the assembling protrusion 22 at the top of the air inlet filter device, and the bottom end of the air inlet filter device is abutted on the sealing piece at the inner bottom surface of the dust collecting cup body 7. The air entering the dust collecting cup body 7 forms a cyclone in the dust collecting cup body 7, the dust with large particles is separated out and falls into a first dust collecting area at the bottom of the dust collecting cup body 7, the air containing the dust with small particles enters the cone part 3 through the filter screen and is further cyclone-separated in the cone part 3, the dust with small particles falls into a second dust collecting area formed by the dust blocking pipe body 52 and the dust collecting cup body 7 from an opening at the bottom end of the cone part 32, and the air after cyclone separation passes through the upper shell part 6 in the cylinder pipe 21 of the cover plate 2 of the separator and is discharged from the dust collector. When the dust of the dust collector is cleaned, the air inlet filter device in the dust collecting cup body 7 is taken down, the space inside and outside the dust blocking pipe body 52 is communicated, the dust is converged at the bottom of the dust collecting cup body 7, and the dust collector is directly poured, so that the dust collector is simple and convenient to operate.
In view of the uniformity of the circumferential air flow, in the present embodiment, the cone portions 3 are circumferentially distributed about the axis A-A of the dirt cup body 7.
In comparison with the existing vacuum cleaners, the embodiment of the invention is used, the comparison examples 1 and 2 are the existing handheld vacuum cleaners with the same power, the cone part 3 of the vacuum cleaner of the comparison example 1 is arranged inside the side wall of the cyclone separation assembly, and the axial direction of the cone part 3 of the vacuum cleaner of the comparison example 2 is inclined relative to the axial direction of the cyclone separation assembly.
The test site was a square box with an area of 1 x 1m, a carpet was laid on the bottom of the box, 200g of a powdery mixture of fine sand and cement ash was poured uniformly on the carpet, the carpets in the box were cleaned using example 3, comparative example 1, comparative example 2, respectively, the working time was 10s, the weight of dirt in the dust cup was measured, and the dust suction effect of the dust collector was reflected by the difference between the weight and 200 g. Each dust collector is tested for 10 times, the test results are averaged, and the specific test results are shown in the following table:
table 1 test results table
As can be seen from the table, when the dust collector adopts the motor with the same power to drive the dust collection, compared with the dust collector in the embodiment of the invention in the prior art, the cyclone dust collection effect is improved, and the dust collector has smaller overall size.
In summary, the embodiment of the invention provides a cyclone separating assembly, an air inlet filtering device and a dust collector, because a part of the cone is positioned outside the wall surface of the pipe body 1, the number of cones can be increased in a limited area without increasing the diameter of the dust collecting cup body 7, and the overall cyclone separating effect is further improved; the cyclone separation device optimizes the specific sizes of the cone part, the cone air inlet and other parts in the cyclone separation assembly, and then can improve the cyclone separation effect of each cone on gas; the dust collecting device can play a dust falling role through the dust blocking ring 51 and the dust blocking plate 53, so that dust particles falling into the first dust collecting area are prevented from rotating around the pipe body 1 under the action of negative pressure suction force, and dust is convenient to store.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (17)
1. A cyclone separation assembly, the cyclone separation assembly comprising: a separator cover plate (2), a pipe body part (1) and a cone part (3); the plurality of cone parts (3) are arranged, and each cone part (3) is at least partially arranged outside the pipe body part (1); the separator cover plate (2) is arranged at the air outlet end of the cyclone separation assembly; the separator cover plate (2) is provided with column pipes (21), the column pipes (21) are in one-to-one correspondence with the cone parts (3), and the column pipes (21) penetrate into the cone parts (3);
the cone portion (3) comprises a cylindrical portion (31) and a conical portion (32), the cylindrical portion (31) being closer to the separator cover plate (2) than the conical portion (32);
the axis of the conical part (32) is inclined towards the axis of the pipe body (1) relative to the axis of the cylindrical part (31) so that the tip of the conical part (32) can be folded into the pipe body (1).
2. Cyclone assembly according to claim 1, characterized in that the cone portions (3) are evenly distributed along the circumference of the tube body (1).
3. Cyclone assembly according to claim 2, characterized in that the side wall of the cone part (3) outside the tube part (1) is provided with a cone air inlet (33) tangential to the side wall of the cone part (3).
4. A cyclone assembly according to claim 3, wherein the cone air inlet (33) is provided on a side wall of the cylindrical portion (31).
5. Cyclone assembly according to claim 3 or 4, characterized in that the cone air inlet (33) comprises: a first side wall (331), a second side wall (332), and an intake floor (333); -said second side wall (332) is tangential to the side wall of said cone (3); the first side wall (331) is parallel to the second side wall (332); the intake floor (333) is perpendicular to the first sidewall (331).
6. The cyclone assembly according to claim 5, wherein the width of the air inlet bottom plate (333) is equal to the distance between the first side wall (331) and the second side wall (332) and neither is larger than 11mm.
7. The cyclone assembly according to claim 6, wherein the air inlet bottom plate (333) has a width of 6-10mm.
8. The cyclone assembly according to claim 5, wherein the intersection length of the air inlet bottom plate (333) with the first side wall (331) is not more than 8mm; the inlet floor (333) intersects the second side wall (332) at a length of no more than 12mm.
9. The cyclone assembly according to claim 5, wherein the height of the first side wall (331) and the second side wall (332) is not more than 13mm.
10. Cyclone assembly according to claim 5, wherein the number of cone portions (3) is 5-12; the height of the cone part (3) is not more than 65mm; the diameter of the top end face of the cone part (3) is larger than that of the bottom end face of the cone part (3); the diameter of the top end face of the cone part (3) is not more than 21mm, and the diameter of the bottom end face of the cone part (3) is not more than 9mm.
11. Cyclone assembly according to claim 5, characterized in that the air inlet bottom plate (333) is closer to the separator cover plate (2) than the lower end surface of the cylinder tube (21); the distance between the air inlet bottom plate (333) and the lower end surface of the cylinder pipe (21) is not more than 9mm.
12. An intake air filtering device, characterized in that the intake air filtering device comprises: a cyclone separation assembly and a filter screen assembly; the cyclone separation assembly is the cyclone separation assembly of any one of claims 1 to 11; the filter screen assembly comprises a filter screen cover (41) and a filter frame (42); the filter screen cover (41) is arranged on the outer side of the filter frame (42);
the cyclone separation component is arranged inside the filter screen frame.
13. The intake air filtering device according to claim 12, wherein the bottom end of the pipe body (1) is clamped in a pipe body clamping groove (43) of the filtering frame (42); the top end of the filter frame (42) is provided with a protruding structure (44), and the protruding structure (44) is clamped in a clamping groove on the side wall of the separator cover plate (2).
14. The intake air filtering device according to claim 13, wherein the filtering mesh enclosure (41) is provided with a plurality of filtering holes, and the aperture of the filtering holes is 0.1 mm-0.5 mm.
15. The inlet air filter arrangement of any of claims 12 to 14, further comprising a dust guard assembly disposed below the filter frame (42); the dust blocking assembly comprises a dust blocking pipe body (52), a dust blocking ring (51) and a dust blocking plate (53);
the dust blocking pipe body (52) is arranged at one end, far away from the separator cover plate (2), of the filter frame (42), the dust blocking plate (53) is arranged on the outer wall surface of the dust blocking pipe body (52), and the dust blocking ring (51) is sleeved at the joint of the dust blocking pipe body (52) and the filter frame (42) and is positioned above the dust blocking plate (53).
16. A vacuum cleaner, the vacuum cleaner comprising: an upper shell part (6), a dust collecting cup body (7) and an air inlet filtering device; the intake air filtering device is the intake air filtering device according to any one of claims 12 to 15;
the air inlet filtering device is arranged inside the dust collecting cup body (7); the air inlet filter device is connected with the upper shell part (6) through an assembling bulge (22) at the top of the air inlet filter device; the bottom end of the air inlet filter device is abutted against a sealing piece on the inner bottom surface of the dust collecting cup body (7).
17. A vacuum cleaner according to claim 16, wherein the cone portions (3) are circumferentially distributed about the axis of the dirt cup body (7).
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| CN201910911226.XA CN110495816B (en) | 2019-09-25 | 2019-09-25 | Cyclone separation assembly, air inlet filtering device and dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111265147A (en) * | 2020-03-27 | 2020-06-12 | 爱源（厦门）电子有限公司 | Multi-cone cyclone separator and dust collecting device comprising same |
| CN112933834B (en) * | 2021-02-01 | 2022-08-19 | 北京小狗吸尘器集团股份有限公司 | Secondary filter assembly and filter device |
| CN116372651B (en) * | 2023-06-06 | 2023-08-08 | 山西建投临汾建筑产业有限公司 | Quick dust collector of numerical control lathe processing |
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