CN103622642A - Dust collector dust cup without suction loss - Google Patents

Abstract

The invention discloses a vacuum cleaner dust cup without suction loss, which comprises: a dust cylinder with a storage cavity and a tangential air inlet, a separation cover arranged in the storage cavity, a part extending into the separation cover and several cyclones The secondary cyclone of the unit, the secondary dust collector located below the secondary cyclone, the outlet of several secondary air outlet pipes that are detachably arranged above the secondary cyclone and can extend into each cyclone unit The air cover plate and the filter arranged on the air outlet cover plate, wherein the separation cover has a spiral part that cooperates with the tangential air inlet and generates a spiral downward whirlwind, and the outside of each secondary air outlet pipe is uniformly provided with A spiral guide that generates a spiral downward whirlwind. The present invention adopts a multi-stage filter system, and more secondary cyclone units are designed in a unit area to realize a filter system with high efficiency, high performance and no suction loss, and greatly improve the performance of the whole machine.

Description

Vacuum cleaner dust cup without suction loss

technical field

The invention relates to a vacuum cleaner dust cup without suction loss.

Background technique

In recent years, major vacuum cleaner manufacturers have replaced filters with cyclones based on the principle of cyclone separation, and achieved better dust removal effects, which have been widely applied to vacuum cleaners. The cyclone is provided with an inverted cone-shaped cyclone in the dust cup, and an air outlet pipe is arranged longitudinally on the upper end of the cyclone, which is connected with the air outlet of the dust cup. The lower end of the cyclone is provided with an opening so that dust can fall into the dust cup In the dust collection box at the bottom, the air inlet pipe enters the upper side wall of the cyclone and enters along the tangential direction, so that the airflow with dust generates a whirlwind in the cyclone, and the dust particles fall along the side wall of the cyclone to the collector under the action of centrifugal force. At the bottom of the dust box, the airflow after dust removal goes up through the air outlet pipe to discharge the dust cup.

With the strengthening of consumers' awareness of environmental protection and protection, the air discharged by vacuum cleaners is required to be cleaner to avoid secondary pollution. Dust removal consists of several cyclone units. However, the existing two-stage dust removal cannot improve the overall performance. Either the performance of the second-stage dust removal is reduced to improve the performance of the first-stage dust removal, or the performance of the second-stage dust removal is reduced. Dust removal performance. As a result, the separation efficiency of the whole machine is low, and the suction is lost, and the number of times of cleaning the dust cup per unit of use time is large, causing inconvenience to the user.

Contents of the invention

The object of the present invention is to provide a vacuum cleaner dust cup without suction loss.

The technical solution of the present invention is: a vacuum cleaner dust cup without suction loss, which includes: a dust cylinder with a storage cavity and a tangential air inlet, a separation cover arranged in the storage cavity, a part extending into the separation cover and a The secondary cyclone of several cyclone units, the secondary dust collector located below the secondary cyclone, is detachably arranged above the secondary cyclone and has several secondary air outlets that can extend into each cyclone unit The air outlet cover plate of the pipe, and the filter arranged on the air outlet cover plate, wherein the separation cover has a spiral part that cooperates with the tangential air inlet and generates a spiral downward whirlwind.

On the basis of the above-mentioned technical solutions, the following subsidiary technical solutions are further included:

The separation cover is hollow inside and includes a mesh portion, a bottom cover positioned below the mesh portion, and a connecting portion positioned above the mesh portion and sealingly connected to the inner wall of the dust cylinder, wherein the mesh portion has several mesh holes, The spiral portion is located between the mesh portion and the connection portion.

The bottom cover and the mesh part are set separately and rotated and locked on the outside of the secondary dust collector.

The diameter of the bottom cover is larger than the diameter of the mesh part but smaller than the diameter of the connection part, and the distance D between the outermost edge of the bottom cover and the inner wall of the dust cylinder is greater than 3mm, and there is a hole in the center of the bottom cover that allows the secondary dust collector to pass through. A bottom cover hole.

The cyclone units are arranged in at least two circles, including an inner circle cyclone unit and an outer circle cyclone unit surrounding the inner circle cyclone unit, and the number of the inner circle cyclone units is an odd number.

The secondary cyclone has 8 to 15 cyclone units per 10,000 square millimeters of surface area.

The cyclone units each include a secondary air inlet channel for tangentially input airflow, and a secondary air inlet connected to the secondary air inlet channel, wherein the secondary air inlet is arranged obliquely and facing the airflow.

The air outlet cover plate includes several spiral guides that are integrally arranged on the outside of the corresponding secondary air outlet pipe and can generate a spiral downward whirlwind.

There is a distance H between the top of the secondary air outlet pipe and the filter, and H is greater than or equal to 6 mm.

The bottom end of the spiral guide part is higher than the bottom end of the secondary air outlet pipe, and the spiral guide part is a spiral slope inclined from the outside to the axis, and the inclination angle is greater than 15 degrees and less than 60 degrees.

Advantage of the present invention is:

The present invention adopts a multi-stage filter system, and more secondary cyclone units are designed in a unit area to realize a filter system with high efficiency, high performance and no suction loss, and greatly improve the performance of the whole machine.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment:

Fig. 1 is a schematic sectional view of the present invention;

Fig. 2 is a cross-sectional schematic diagram under another angle of the present invention;

Fig. 3 is the three-dimensional schematic diagram of net cover among the present invention;

Fig. 4 is the schematic top view of secondary cyclone in the present invention;

Fig. 5 is a three-dimensional schematic view of the air outlet cover plate after being turned over in the present invention;

Among them: 10. Dust cylinder; 12. Storage cavity; 14. Air outlet; 20. Separation cover; 22. Mesh part; 24. Bottom cover; 26. Connection part; 28. Spiral part; 30. Secondary cyclone; 32. Cyclone unit; 40. Secondary dust collector; 42. Arc groove; 50. Air outlet cover; 51. Base; 52. Secondary air outlet pipe; 53. Spiral guide; 60. Filter; 240, bottom cover hole; 320, secondary air inlet channel; 322, secondary air inlet.

Detailed ways

Embodiment: As shown in Figures 1-5, the present invention provides a specific embodiment of a vacuum cleaner dust cup without suction loss, which includes a dust cylinder 10 with a storage cavity 12 and a tangential air inlet (not shown), The separation cover 20 arranged in the storage chamber 12, the secondary cyclone 30 partially extending into the separation cover 20, the secondary dust collector 40 located below the secondary cyclone 30, and the secondary cyclone 40 are detachably arranged on the secondary cyclone 30 above the air outlet cover plate 50 and the filter 60 arranged on the air outlet cover plate 50, wherein the dust cylinder 10 is cylindrical, and the storage chamber 12 is used to generate a primary cyclone, and the bottom collects the primary cyclone Coarse dust produced. Filter 60 is preferably a Hypa or MIF filter.

3, the separation cover 20 is hollow inside and includes a mesh portion 22, a bottom cover 24 located below the mesh portion 22, a connecting portion 26 located above the mesh portion 22 and sealed with the inner wall of the dust cylinder 10, and a The spiral part 28 between the mesh part 22 and the connecting part 26, wherein the mesh part 22 has several mesh holes 220, the bottom cover 24 and the mesh part 22 are set separately, and can be rotatably locked in the secondary dust collector 40 to facilitate the disassembly and cleaning of components such as the secondary cyclone 30 and the secondary dust collector 40. The diameter of the bottom cover 24 is larger than the diameter of the mesh portion 22 and smaller than the diameter of the connecting portion 26, and the distance D between the outermost edge of the bottom cover 24 and the inner wall of the dust cylinder 10 is greater than 3mm, and the outermost edge is parallel to the central axis. The upper end of the bottom cover 24 is frusto-conical and the lower end is cylindrical, that is, the distance D between the lower end of the bottom cover 24 and the inner wall of the dust cylinder 10 is greater than 3 mm. The center of the bottom cover 24 has a bottom cover hole 240 allowing the secondary dust collector 40 to pass through. The bottom of the secondary cyclone 30 can extend into the inside of the connecting portion 26 . The spiral part 28 is arranged corresponding to the tangential air inlet of the dust cylinder 10, and the starting angle is greater than or equal to 11° but less than 60°, so that the ash entering the dust cylinder 10 has a spiral downward pulling force, which is more conducive to the separation of dust.

With reference to shown in Figure 4, the secondary cyclone 30 includes several cyclone units 32, the number of the cyclone units 32 is preferably more than 12, and there are 8 to 15 cyclones in every ten thousand square millimeters of surface area of the secondary cyclone 30 unit. The cyclone units 32 are arranged in two circles, including an inner circle cyclone unit and an outer circle cyclone unit surrounding the inner circle cyclone unit, and the number of the inner circle cyclone units is an odd number. Each cyclone unit 32 includes a secondary air inlet channel 320 for tangentially input airflow, and a secondary air inlet 322 connected to the secondary air inlet channel 320 . Among them, the secondary air inlet 322 is arranged obliquely and facing the air flow to increase the air volume of the secondary air intake; the end of the outer ring cyclone unit corresponds to the arc groove 42 of the secondary dust collector 40, and the arc groove 42 is arranged downwardly by outward axis.

Referring to FIG. 5, the air outlet cover 50 includes a base 51, several secondary air outlet pipes 52 integrally extending downward from the base 51, and a number of corresponding ones integrally arranged on the outside of each secondary air outlet pipe 52. The spiral guide part 53, wherein the spiral guide part 53 is a spiral plane or a spiral slope, and when the spiral guide part 53 is a spiral slope, it is inclined from the outside to the axis, and the inclination angle is greater than 15 degrees and less than 60 degrees. At the same time, the bottom end of the spiral guide part 53 is higher than the bottom end of the secondary air outlet pipe 52 . There is a distance H between the top of the secondary air outlet pipe 52 and the filter 60, and H is greater than or equal to 6 mm to ensure the smooth flow of the air duct.

During operation, as shown in Fig. 1-5, the dust enters the storage chamber 12 from the tangential air inlet, rotates downward along the spiral part 28 of the separation cover 20 and generates centrifugal force and collides with the inner wall of the dust cylinder 10. After that, most of the dust is deposited in the storage chamber. Cavity 12 bottom. Fine ash passes through the mesh 220 of the separation cover 20 and enters the secondary cyclone 30 upwards, enters the secondary air inlet channel 320 through the inclined secondary air inlet 322 and rotates in the cyclone unit 32 for separation. The outside of the secondary air outlet pipe 52 of each cyclone unit 32 is provided with a spiral guide 53, which accelerates the spiral downward movement of dust and deposits in the secondary dust collector 40, and then passes through the secondary filtered airflow through the secondary The air outlet pipe 52 continues to pass through the filter 60 to filter, and finally the clean air enters the motor of the whole machine through the air outlet 14 .

The present invention adopts a multi-stage filter system, and more secondary cyclone units are designed in a unit area to realize a filter system with high efficiency, high performance and no suction loss, and greatly improve the performance of the whole machine.

Of course, the above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. the dust cup of dust collector without suction loss, it is characterized in that it comprises: the dirt cylinder (10) with host cavity (12) and tangent air inlet, be arranged on the separation hood (20) in host cavity (12), part extend in separation hood (20) and has the secondary cyclone (30) of several cyclone unit (32), be positioned at the two-stage precipitator (40) of secondary cyclone (30) below, be removably disposed in secondary cyclone (30) top and there is the air-out cover plate (50) that can extend into several secondary discharge pipes (52) in each cyclone unit (32), and be arranged on the filter (60) on air-out cover plate (50), wherein separation hood (20) has the spire (28) that coordinates and produce whirlwind under screw with tangent air inlet.

2. a kind of dust cup of dust collector without suction loss according to claim 1, it is characterized in that: described separation hood (20) inner hollow the connecting portion (26) that comprises mesh portion (22), is positioned at the end cover (24) of mesh portion (22) below and is positioned at mesh portion (22) top and is connected with dirt cylinder (10) inner wall sealing, wherein said mesh portion (22) has several mesh (220), and described spire (28) is positioned between mesh portion (22) and connecting portion (26).

3. a kind of dust cup of dust collector without suction loss according to claim 2, it is characterized in that: the diameter of described end cover (24) is greater than the diameter of mesh portion (22) and is less than the diameter of connecting portion (26), and the end cover outermost edge of (24) and the distance B of dirt cylinder (10) inwall are greater than 3mm, the cover hole, the end (240) that the center of end cover (24) has permission two-stage precipitator (40) to pass.

4. a kind of dust cup of dust collector without suction loss according to claim 3, is characterized in that: described end cover (24) is separate type setting with mesh portion (22), and spin locking is in the outside of two-stage precipitator (40).

5. according to a kind of dust cup of dust collector without suction loss described in claim 1 or 2 or 3 or 4, it is characterized in that: described cyclone unit (32) is at least inside and outside two circle spread configurations, comprise inner ring cyclone unit and the outer ring cyclone unit arranging around inner ring cyclone unit, and the number of inner ring cyclone unit is odd number.

6. a kind of dust cup of dust collector without suction loss according to claim 5, is characterized in that: in every ten thousand square millimeters of surface areas of described secondary cyclone (30), have 8 ~ 15 cyclone unit.

7. a kind of dust cup of dust collector without suction loss according to claim 5, it is characterized in that: described cyclone unit (32) includes the secondary air intake passage (320) and the secondary air inlet (322) being connected with secondary air intake passage (320) for tangential input air-flow, wherein secondary air inlet (322) is for being obliquely installed and object gas flow setting.

8. according to a kind of dust cup of dust collector without suction loss described in claim 1 or 2 or 3 or 4, it is characterized in that: described air-out cover plate (50) comprises several spiral guide portion (53) that are wholely set in corresponding secondary discharge pipe (52) outside and can produce whirlwind under screw.

9. a kind of dust cup of dust collector without suction loss according to claim 8, is characterized in that: between the top of described secondary discharge pipe (52) and filter (60), have distance H, H is more than or equal to 6 mm.

10. a kind of dust cup of dust collector without suction loss according to claim 9, it is characterized in that: the bottom of described spiral guide portion (53) is higher than the bottom of secondary discharge pipe (52), described spiral guide portion (53) is screw inclined plane simultaneously, and tilted by export-oriented axle center, angle of inclination is greater than 15 degree, and is less than 60 degree.

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