Disclosure of Invention
To the problem among the above-mentioned prior art, this application has proposed a neotype burnisher that has compact and efficient separation assembly, can separate particulate matter and air in the suction high-efficiently, slows down burnisher's suction decay rate, and simple structure, small in size, convenient operation.
The application provides a burnisher with separator assembly, including handle, separator assembly and fan subassembly, separator assembly with the fan subassembly is connected and the two all with handle fixed connection, separator assembly includes: the side wall of the dust cup is provided with a fluid inlet; the rotating separator is cylindrical with an opening at one end, a plurality of separating holes are formed in the side surface area of the rotating separator, the side surface area at least comprises an area facing the fluid inlet, and a motor rotating shaft mounting piece is arranged on the inner wall of the bottom of the rotating separator in the middle; and the driving motor is arranged in the rotary separator, and the rotating shaft of the driving motor is fixedly arranged on the motor rotating shaft mounting part downwards, so that the driving motor can drive the rotary separator to rotate.
In one possible embodiment, the rotating shaft of the driving motor is fixedly mounted on the motor rotating shaft mounting part through threaded connection, adhesive bonding, key connection or interference press fitting.
In one possible embodiment, a plurality of the separation holes are uniformly distributed on the side surface area and the bottom surface area of the rotating separator.
In one possible embodiment, the shape of the separation holes on the side surface area and the bottom surface area is circular, oval, rectangular, rhombic, or polygonal.
In a possible embodiment, the separation openings in the side surface regions are inclined polygonal separation openings, the axes of which are oriented at an angle to the axial direction of the rotating separator.
In one possible embodiment, the plurality of separation holes are each distributed in the form of at least one concentric ring in the area of the bottom surface of the rotating separator.
In one possible embodiment, the side surface area is the entire cylindrical side surface of the rotating separator and the bottom surface area is the entire cylindrical bottom surface of the rotating separator.
In one possible embodiment, in the axial direction of the rotating separator, the side surface area includes a first sub-area facing the fluid inlet and a second sub-area away from the fluid inlet, and the shape and/or size of the separation holes in the first and second sub-areas are different.
In one possible embodiment, the dirt cup includes a cup body and a bottom cover that is tightly snap fit to the bottom of the cup body.
In one possible embodiment, the separation assembly further comprises a primary filter fixedly disposed at a fluid outlet location of the dirt cup.
In one possible embodiment, the cleaning tool is a vacuum cleaner.
The application provides a burnisher with separable set compares in prior art, has following beneficial effect:
(1) by arranging the separation component, the particle (large particle sundries and small particle dust) and the air in the suction can be efficiently separated, the suction attenuation speed of the cleaning tool is reduced, and the cleaning tool is simple and compact in structure and convenient to operate;
(2) by configuring the shape of the separation holes in the side surface area of the rotating separator as inclined polygonal holes, a part of large particles can be cut and prevented from winding;
(3) the surface of the stator of the driving motor is provided with a plurality of surface bulges, so that residual particles entering the rotary separator through the separation holes can be further cut and knocked down and fall into the bottom of the dust cup through the separation holes in the bottom surface area, and the particles are prevented from blocking the primary filter;
(4) through setting up two-stage filter, can filter the air current after the separator separation to furthest, ensure that exhaust air is clean, realize clean effect.
The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the invention is achieved.
Detailed Description
The cleaning tool of the present invention will be further described with reference to the accompanying drawings by taking a vacuum cleaner as an example.
Fig. 1 is a schematic structural view of avacuum cleaner 100 provided in the present application. As shown in FIG. 1, thevacuum cleaner 100 may include ahandle 110, aseparating assembly 120, and afan assembly 130, wherein thefan assembly 130 is fixedly coupled to theseparating assembly 120 and disposed above the latter, while theseparating assembly 120 is fixedly coupled to thefan assembly 130 and thehandle 110; when thevacuum cleaner 100 is in operation, an operator can hold thehandle 110 to operate thevacuum cleaner 100, thefan assembly 130 is used for generating negative pressure inside thevacuum cleaner 100, and theseparation assembly 120 is used for absorbing large-particle impurities and small-particle dust and separating the large-particle impurities and the small-particle dust from air, so that cleaning is completed.
Specifically, fig. 2 is a partial cross-sectional view of thevacuum cleaner 100 provided in the present invention, which shows the internal structure of theseparation assembly 120 and thefan assembly 130. As shown, theseparating assembly 120 includes adirt cup 121, aprimary filter 122, adrive motor 123, arotating separator 124, and adirt suction opening 125; thefan assembly 130 includes anupper cover 131, asecondary filter 132 and afan 133; wherein thedirt cup 121 andupper cover 131 are fixedly engaged to form a substantially sealed body structure.
Alternatively, as shown in FIG. 2, a step structure is provided at the bottom edge of theupper cover 131, while a complementary step structure is provided at the top edge of thedirt cup 121, which when snapped together complementarily engage to form a sealed body structure.
Alternatively, theupper cover 131 and thedirt cup 121 may be screwed or the like to form a substantially sealed structure.
As shown in fig. 3, in theseparating assembly 120, thedirt cup 121 is generally cylindrical and includes acup 1211 and abottom cap 1212, and thebottom cap 1212 can be fastened to the bottom of thecup 1211 to form acavity 1213 for containing the separated large particles and small particles of dirt. A fluid inlet 1214 (fig. 4) is formed on the sidewall of thecup 1211, and thedust suction port 125 is fixedly connected to the sidewall of thecup 1211 and at least partially faces thefluid inlet 1214, so that the mixed fluid of the large particle impurities, the small particle dust and the air flow sucked from thedust suction port 124 can enter the interior of thedust cup 121 through thefluid inlet 1214, and then after separation, the small particle dust and the large particle impurities are retained in thecavity 1213, and the air is discharged out of thedust cup 121 through afluid outlet 1215 formed in the top of thecup 1211.
Optionally, an engagement mechanism may be provided at the junction of thebottom cap 1212 and thecup 1211, which may include, for example, a spring catch (not shown) and a button 1216 (FIG. 4) protrudingly provided on a side wall of thecup 1211. in the engaged state, the spring catch can be compressed by pressing thebutton 1216 to remove thebottom cap 1212 from thecup 1211 to remove small particle dust and large particle debris and the like accumulated therein; similarly, the spring clip can be compressed by depressing thebutton 1216, and thebottom 1212 can be snapped onto the bottom of thecup 1211, releasing thebutton 1216 to securely snap the two together.
As shown in fig. 2 and 3, inside thebowl 1211, aprimary filter 122 is fixedly disposed at thefluid outlet 1215 of thebowl 1211 to filter the separated air, adrive motor 123 is centrally and partially fixedly disposed on theprimary filter 122 with its axis of rotation 1232 (fig. 11 a-12 b) oriented downward, and therotational separator 124 and the axis ofrotation 1232 of thedrive motor 123 are fixedly connected such that therotational separator 124 can be rotated about the rotational axis by thedrive motor 123.
Specifically, a motor shaft mounting member 1244 (shown in fig. 8 and 9) is provided at a center position on the bottom inner wall of the rotatingseparator 124, and is used to fixedly connect theshaft 1232 of thedriving motor 123. Theshaft 1232 of thedrive motor 123 may be fixedly coupled to themotor shaft mount 1244 by any of a number of known means, such as, for example, by threading, adhesive bonding, key bonding, or interference fit. The rotating speed of the drivingmotor 123 can be a constant value, and can also be adjusted according to the working gear of thevacuum cleaner 100; or thedriving motor 123 is matched with a constant rotation speed or different rotation speeds according to the operating gear of thecleaner 100.
Preferably, theprimary filter 122 partially protrudes from thefluid outlet 1215 of thecup 1212, so that when thedust vent body 1212 is engaged with theupper cover 131 of thefan assembly 130, theprimary filter 122 can further seal the engagement interface (step surface) of the primary filter and the upper cover from the inside, and the sealing effect is enhanced, so that the separated air can completely enter the inside of thefan assembly 130 through theprimary filter 122.
Here, therotating separator 124 may have a cylindrical, conical, cylinder-like or cone-like shape with an upper end opened, and it is understood that, in order to achieve the effect of separating the particulate matter from the air, therotating separator 124 should be opened withseparation holes 1243 allowing the clean air to pass through at least in aside surface area 1241.
When thevacuum cleaner 100 of the present application is in operation, the drivingmotor 123 drives therotating separator 124 to rotate at a certain speed in a certain direction according to specific use requirements, the mixed fluid containing the small particle dust, the large particle impurities and the air enters the interior of thedirt cup 121 through thefluid inlet 1214 under the negative pressure generated by the fan assembly 130 (described in detail below), and the mixed fluid enters tangentially along the cylindrical surface of therotating separator 124 and flows along the cylindrical surface of therotating separator 124 in the rotating direction thereof. Large particle debris in the combined air stream will be struck by therotating separator 124 and thrown into thechamber 1213 at the bottom of thedirt cup 121. At the same time, the rotation of therotating separator 124 can agitate the air at a high rate in the direction of fluid entry, creating a cyclone-like effect of the air in thedirt cup 121. The small particles of dirt in the combined air flow are subjected to the cyclonic action and are also separated into thechamber 1213 at the bottom of thedirt cup 121. The air and possibly also the participating particles in the mixed fluid flow at least from the separatingopenings 1243 distributed over thelateral surface area 1241 of therotating separator 124 into theprimary filter 122 for filtering.
In thevacuum cleaner 100 provided herein, therotating separator 124 can take many different forms to accomplish the separation of the mixed fluid. Therotating separator 124 of the present application will be described in detail with reference to fig. 5 to 10, taking a cylindrical shape as an example.
Fig. 5 is a structural side view of an embodiment of therotating separator 124, and therotating separator 124 is provided with a plurality of uniformly distributedseparation holes 1243 in aside surface area 1241, that is, the intervals between adjacent rows of separation holes are the same, the intervals between adjacent columns are also the same, and the sizes of theseparation holes 1243 are the same. Here, theside surface area 1241 is at least a circumferential area of the side surface of therotating separator 124 facing thefluid inlet 1214, so that the mixed air flow entering thedirt cup 121 from thefluid inlet 1214 can directly contact the plurality ofseparation holes 1213, enhancing the separation effect.
Alternatively, the separation holes 1243 may have various shapes, such as a circle, an ellipse, a rectangle, a diamond, or a polygon, etc. Preferably, as shown in fig. 5, theseparation hole 1243 has a circular shape, which can effectively reduce the complexity of manufacturing and increase the efficiency of manufacturing.
In alternative embodiments, different rows or columns of theseparation apertures 1243 may have different shapes in theside surface area 1241.
In another embodiment, as shown in FIG. 6, theseparation orifice 1243 is a polygonal orifice that is at an angle φ from the rotational axis of therotational separator 124, i.e., the axial centerline of the separation orifice is at an angle φ from the rotational axis of therotational separator 124. The inclined polygonal holes distributed on the side surface of therotating separator 124 make the dirt less likely to pass through and be separated. Meanwhile, as therotary separator 124 rotates stably, the inclined polygonal holes can cut off hairs in dirt, so that the hairs are prevented from being wound; the air separated by therotating separator 124 passes through the polygonal holes of its surface and enters the inside of therotating separator 124 in an oblique direction defined by the polygonal holes.
In the structural side view of another embodiment of therotating separator 124 depicted in fig. 7, therotating separator 124 is provided with a plurality of non-uniformly distributedseparation holes 1243 in aside surface area 1241. The "uneven distribution" here means that the plurality ofseparation holes 1243 are unevenly distributed in the axial direction of the rotating separator 124 (i.e., the up-down direction in fig. 7).
Specifically, in the axial direction of therotational separator 124, the side surface area close to the fluid inlet and the side surface area far from the fluid inlet are distributed with theseparation holes 1243 different in size and/or shape, and the interval between adjacent separation hole rows is not constant. In the preferred embodiment of fig. 7, the side surface area includes, in the axial direction, afirst sub-area 1241A close to the fluid inlet and asecond sub-area 1241B far from the fluid inlet, in which rows of the plurality of separation holes are uniformly distributed, respectively, and in order to ensure the separation effect, the distance between the adjacent rows of the separation holes of thefirst sub-area 1241A is smaller than the distance between the adjacent rows of the separation holes of thesecond sub-area 1241B, and the size of each separation hole of thefirst sub-area 1241A is smaller than the size of the separation hole of thesecond sub-area 1241B, so that more large particle impurities and small particle dusts cannot pass through the separation holes of thefirst sub-area 1241A to be separated into thecavity 1213 at the bottom of thedirt cup 121, while the separated air can be discharged out of the dirt cup through the separation holes of the second sub-area as soon as possible. In order to further maintain the balance of the average ventilation area per unit area over the entireside surface area 1241, the number of theseparation holes 1243 of thesecond sub-area 1241B should be made smaller than the number of theseparation holes 1243 of thefirst sub-area 1241A.
Likewise, the separation holes 1243 may have various shapes, such as a circle, an ellipse, a rectangle, a diamond, a regular polygon, or the like. Preferably, in fig. 6, theseparation holes 1243 distributed in thefirst sub-area 1241A have a circular shape, and theseparation holes 1243 distributed in thesecond sub-area 1241B have a square shape.
In the embodiment depicted in fig. 5, 6 or 7, theside surface area 1241 should comprise at least a side area close to the fluid inlet. Preferably, theside surface area 1241 is the entire side surface of therotating separator 124, i.e. theseparation holes 1243 are distributed over the entire side surface of therotating separator 124.
It is understood that the separation holes 1243 may be provided only on theside surface area 1241 of therotating separator 124, and the separation holes 1243 may not be provided on thebottom surface area 1242, as shown in fig. 8, on the premise of securing the separation effect. In an alternative embodiment shown in fig. 9 and 10, besides the plurality ofseparation holes 1243 distributed on theside surface area 1241, therotating separator 124 may further include a plurality ofseparation holes 1243 on thebottom surface area 1242 to assist the separation work of the mixed air flow by theseparation holes 1243 of theside surface area 1241.
In the embodiment depicted in fig. 9, a plurality ofdiscrete holes 1243 are evenly distributed around the center of a circle on thebottom surface area 1242, with themotor shaft mount 1244 disposed at the center of the circle. Specifically, a plurality of concentric rings are formed around the center, each concentric ring includes a plurality ofseparation holes 1243 that are equidistantly distributed, and the radial intervals between adjacent concentric rings are the same.
Alternatively, the separation holes 1243 may have various shapes, such as a circle, an ellipse, a rectangle, a diamond, or a polygon, etc. Preferably, in fig. 9, theseparation hole 1243 has a circular shape, which can effectively reduce the complexity of manufacturing and increase the processing efficiency.
In further alternative embodiments, the plurality ofseparation apertures 1243 may be non-uniformly distributed about the center of the circle on thebottom surface area 1242 with the plurality ofseparation apertures 1243. By "non-uniform distribution" is meant that theseparation apertures 1243 in adjacent concentric rings are of different shapes and/or sizes and are not uniformly spaced. For example, the separation holes in the concentric rings may have different shapes and/or sizes in the radial direction, and the spacing between adjacent concentric rings becomes gradually larger in the outward direction from the center of the circle.
Preferably, in this embodiment, thebottom surface area 1242 is the entire bottom surface of therotating separator 124, i.e. theseparation holes 1243 are distributed over the entire bottom surface of therotating separator 124.
In an alternative embodiment, thebottom surface area 1242 may be an edge area of the bottom surface of therotating separator 124, i.e. the plurality ofseparation holes 1243 may be distributed in the form of at least one concentric ring at the edge area of the bottom surface. In the embodiment of fig. 10, only one circular ring in which a plurality ofseparation holes 1243 are arranged in a circumferential direction is distributed at an edge area of the bottom surface (bottom surface area 1242).
It will be appreciated that for optimal separation, therotating separator 124 should be made of a material that is strong and lightweight, such as stainless steel, to withstand the large shear stresses it experiences when in contact with the mixed gas stream. Meanwhile, therotating separator 124 should have smooth side and bottom surfaces so that large-sized foreign materials or small-sized dust in the mixed air flow cannot stick to the surface thereof or get stuck in the separation holes, while protecting the safety of the operator and preventing scratches when the rotating separator is mounted, dismounted, and cleaned.
To obtain a relatively high separation efficiency, the rotary separator of conventional cleaners usually comprises two or more separation stages. The first stage typically comprises a single relatively large cyclone chamber for removing coarse dirt, while the second stage comprises a plurality of relatively smaller cyclone chambers for removing fine dirt. As a result, the overall size of the rotating separator may be relatively large. Another difficulty with rotating separators is that they require high fluid velocities to achieve high separation efficiency. In addition, the fluid moving through the rotating separator typically follows a relatively long path as it flows from the inlet to the outlet. The long path and high velocity result in high aerodynamic losses, such that the pressure drop associated with the rotating separator can be high. With the rotating separator described herein, relatively high separation efficiency can be achieved in a more compact manner.
Fig. 11a and 11b are schematic structural views of the drivingmotor 123 of the separatingassembly 120. As shown, the drivingmotor 123 includes astator 1231, a rotor (inside the motor, not shown), and arotating shaft 1232. In addition, a plurality ofsurface protrusions 1233 may be uniformly disposed on the surface of thestator 1231, and by thesesurface protrusions 1233, the residual particulate matters entering the inside of therotating separator 124 can be further pulverized and then fall into thecavity 1213 at the bottom of thedirt cup 121 through the separatingholes 1243 distributed on thebottom surface area 1242 of therotating separator 124, so that the air flow entering theprimary filter 122 is cleaner, and theprimary filter 122 is prevented from being blocked.
In the particular embodiment shown in fig. 11a and 11b, thesurface protrusions 1233 are configured as a sheet-like structure, which extends over at least part of the axial length of the stator surface, and whose projection on the stator surface is parallel to the axial direction of thedrive motor 123. In addition, each of thesurface protrusions 1233 should have the same size to ensure stability when the motor is rotated.
In another embodiment of thedrive motor 123 depicted in fig. 12a and 12b, thesurface protrusions 1233 are configured as a sheet-like structure, which extends over at least part of the axial length of the stator surface and whose projection onto the stator surface is at an angle θ to the axial direction of thedrive motor 123. In the embodiment where theseparation holes 1243 of therotating separator 124 are inclined polygonal holes as shown in fig. 6, the inclined direction of the inclined polygonal holes is preferably opposite to the inclined direction of theinclined surface protrusions 1233 in this embodiment, so that it is more advantageous to crush and knock off residual particulate matters (e.g., dust) entering the inside of therotating separator 124.
Fig. 13 shows a schematic structural diagram of thefan assembly 130 of thevacuum cleaner 100, which includes anupper cover 131, asecondary filter 132, and afan 133, wherein thesecondary filter 132 and thefan 133 are fixedly disposed in amotor compartment 134 of theupper cover 131. Specifically, theupper cover 131 is tightly connected to thedust cup 121, thesecondary filter 132 is in a ring structure and the outer wall of the secondary filter is fixedly disposed on the inner wall surface of the top of theupper cover 131, and a plurality of air outlet holes (not shown) are disposed along the circumferential direction at the position of the side wall of theupper cover 131 contacting the outer wall of thesecondary filter 132 or at the edge position of the top wall, so as to discharge the air after secondary filtration out of thevacuum cleaner 100; thefan 133 is interference-fitted with thesecondary filter 132 in such a manner that an impeller (not shown) faces theseparation assembly 120, and a bottom portion thereof is fixedly provided (e.g., screwed or snap-fitted) on an inner top wall of theupper cover 131.
During the operation of thevacuum cleaner 100, thefan 133 rotates to generate a negative pressure inside thevacuum cleaner 100, so that large-particle impurities and small-particle dust enter the vacuum cleaner through thedust suction port 125 and thefluid inlet 1214 to be separated, the separated particles are retained inside thedust cup 121, the separated air flow is filtered by theprimary filter 122 and then discharged from thedust cup 121, enters thefan assembly 130, and is secondarily filtered by thesecondary filter 132, and cleaner air is discharged from thevacuum cleaner 100 through the air outlet holes on the side wall and/or the top wall edge of theupper cover 131, so as to achieve a cleaning effect.
In a preferred embodiment, theprimary filter 122 and thesecondary filter 132 may be HEPA (HEPA) or filter cotton.
Fig. 14 is a schematic view of the structure of thehandle 110 of thevacuum cleaner 100 of the present application. Thehandle 110 may include acontrol portion 111, agrip portion 112, and abattery compartment 113 for accommodating abattery 114, which are configured to be integrally formed to increase strength and reliability of the handle structure.
Specifically, thecontrol section 111 may house therein a control component, such as an integrated circuit board or the like, which may communicate with the drivingmotor 123 and theblower fan 133 to control the drivingmotor 123 and theblower fan 133 to rotate, respectively; additionally, a touch-sensitive display screen (not shown) may be disposed on thecontrol portion 111 for displaying information such as the rotation speed of the drivingmotor 123 and thefan 133, the dust suction mode, and the dust suction time, so that an operator can operate thedust collector 100 more conveniently.
As shown in fig. 1 and 2, the outer wall of the separatingassembly 120, the outer wall of theblower assembly 130 and thehandle 110 are fixedly connected, for example, by means of screw connection, key connection, adhesive bonding, etc.
Preferably, the diameter of the lower part of the outer wall of thedust cup 121 is larger than that of the upper part of the outer wall, and the upper part and the lower part are in smooth step transition; accordingly, the portion of thehandle 110 connected to thedirt cup 121 is also correspondingly provided with a complementary transition step to increase the firmness of the connection.
In a preferred embodiment, thehandle 110, theupper cap 131, and thecup 1212 of the present application should be made of a high strength and lightweight material, for example, thehandle 110 and theupper cap 131 may be made of an Acrylonitrile Butadiene Styrene (ABS) material. In addition, in general, thecup 1212 may be constructed of a transparent material, such as a Polycarbonate (PC) material, in order to facilitate an operator to intuitively perceive the suction effect of the cleaner.
Fig. 15 is a schematic structural view of thedust suction port 125 provided in the present application. In this figure, thesuction port 125 may include an engagingportion 1251 and asuction portion 1252 that are integrally formed, the engagingportion 1251 having an arcuate engaging surface with the same curvature as thedirt cup 121 to achieve a tight engagement. In addition, the joining manner of the two can be a connecting means known to those skilled in the art, such as screw connection, key connection, adhesive bonding, etc., and the invention is not limited herein.
It should be understood that thedust suction port 125 can be directly used for sucking particles and dust, and can be connected to thedust suction portion 1252 by a snap connection or the like according to different dust suction requirements.
The application provides adust catcher 100, through theinside separating assembly 120 that sets up, can effectively separate large granule filth and the tiny particle dust among the rubbish of inhaling, simple structure, it is small to can carry out high-efficient separation, the suction decay speed that slows down the dust catcher to air and rubbish.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.