CN116942004A

CN116942004A - Axial flow cyclone separator, dust and dirt separator and vehicle-mounted dust collector

Info

Publication number: CN116942004A
Application number: CN202310679666.3A
Authority: CN
Inventors: 陈传冰; 王德旭; 黄月林; 覃丕健
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-10-27

Abstract

The application relates to the technical field of gas separation containing gas particles, and discloses an axial flow cyclone separator, a dust and dirt separation device and a vehicle-mounted dust collector, wherein the axial flow cyclone separator comprises: the two ends of the split flow cylinder are respectively provided with an opening, one end of the split flow cylinder is provided with an air inlet, the other end of the split flow cylinder is provided with an air outlet, the position, close to the air outlet, of the split flow cylinder is provided with a dust discharging port, the dust discharging port is positioned below the air outlet, and the dust discharging port is communicated with the inner cavity of the split flow cylinder; the guide piece is arranged in the air inlet and comprises a plurality of guide vanes, so that the entering airflow generates cyclone airflow moving towards the direction of the air outlet. By providing the dust discharge opening near the exhaust opening, the solid particles are discharged from the dust discharge opening near the exhaust opening to the separating cylinder during the movement of the air flow towards the exhaust opening, thereby reducing the content of the solid particles in the air discharged from the exhaust opening.

Description

Axial flow cyclone separator, dust and dirt separator and vehicle-mounted dust collector

Technical Field

The application relates to the technical field of gas separation containing solid particles, in particular to an axial flow cyclone separator, a dust and dirt separation device and a vehicle-mounted dust collector.

Background

A cyclone separator is a device for separating particles by using inertial centrifugal force generated by a rotational motion of a gas-solid two-phase fluid, and is generally used in occasions where gas-solid separation is required, for example, a vehicle-mounted dust collector, etc., to achieve air purification.

In the related art, a cyclone separator is provided with an air inlet and an air outlet, an air flow containing solid particles enters the cyclone separator from the air inlet, the air flow highly rotates in the cyclone separator, part of the solid particles run downwards after hitting the inner wall of the cyclone separator, and the other part of the solid particles rise along with the spiral of the air flow and are discharged from the air outlet.

Particles running downwards in the cyclone separator can enter the collecting channel for collecting, but fine particles in fixed particles running downwards can enter the spiral airflow again and then enter the exhaust port, so that the content of the solid particles in the gas discharged from the exhaust port is high, and when the cyclone separator is applied to air purification, the purification effect of the air can be affected.

Disclosure of Invention

In view of the above, the present application provides an axial flow cyclone separator to solve the problem that the content of solid particles discharged from an exhaust port is high due to the fact that fine particles cannot be separated by using a conventional cyclone separator in the prior art.

The application provides an axial flow cyclone separator, comprising: the two ends of the split flow cylinder are respectively provided with an opening, one end of the split flow cylinder is provided with an air inlet, the other end of the split flow cylinder is provided with an air outlet, the position, close to the air outlet, of the split flow cylinder is provided with a dust discharging port, the dust discharging port is positioned below the air outlet, and the dust discharging port is communicated with the inner cavity of the split flow cylinder; the guide piece is arranged in the air inlet and comprises a plurality of guide vanes, so that the entering airflow generates cyclone airflow moving towards the direction of the air outlet.

By arranging the dust exhaust port at the position close to the exhaust port, part of solid particles move to the dust exhaust port along with the air flow in the process of moving upwards towards the exhaust port, and part of solid particles can be discharged out of the separating cylinder along with the air flow from the position close to the exhaust port, so that the phenomenon that the part of solid particles enter the rotating air flow again in the falling process to rise is avoided, fine particles are separated from the exhaust port, and the content of solid particles in the air discharged from the exhaust port is reduced.

In an alternative embodiment, the air inlet is disposed opposite the air outlet.

The air inlet and the air outlet are arranged oppositely, so that the air flow always rotates to flow in the direction of the air outlet, and the direction change is not needed, so that the wind resistance is smaller; meanwhile, the axial flow cyclone separator has the advantages of high gas treatment capacity and high efficiency because the pressure loss during operation is reduced.

In an alternative embodiment, the diverter cartridge includes: one end of the split-flow main cylinder is provided with the air inlet; the exhaust barrel surrounds the exhaust port, one end of the exhaust barrel extends into the other end of the diversion main barrel and is connected with the diversion main barrel, and a gap is reserved between the outer wall of the exhaust barrel and the inner wall of the diversion main barrel to form the dust exhaust port.

The dust exhaust port is arranged around the outside of the cylinder wall extending into the split-flow main cylinder through the exhaust cylinder, when cyclone airflow containing solid particles moves to the air inlet end of the exhaust port, the solid particles in the cyclone airflow can enter the dust exhaust port to be exhausted, and the content of the solid particles entering the exhaust port is reduced.

In an alternative embodiment, the exhaust funnel is a cone-shaped cylinder such that the dust discharge opening gradually decreases in the air flow direction along a cross-sectional area perpendicular to the center of the split-flow cylinder, and the air discharge opening gradually increases in the air flow direction.

Through the outer wall of aiutage from inside to outside setting, can form the barrier effect to the air current that gets into the dust exhaust mouth for after the solid particle that contains in the air current that gets into in the dust exhaust mouth can touch the outer wall of aiutage, under the effect of reaction, solid particle can fall into the outside space of aiutage and collect, thereby realized solid particle exhaust's purpose.

In an alternative embodiment, an end of the guide vane near the exhaust port is bent toward a side of the guide vane to form a bent portion.

Part of solid particles in the air flow can be blocked from continuously moving towards the exhaust port through the bending part, so that the solid particles in the air flow can fall under the action of centrifugal force, and the content of the solid particles entering the rotating air flow is reduced.

The application also provides a dust and dirt separation device, comprising: the two ends of the dust cup are respectively provided with an opening, and one end of the dust cup is provided with an airflow inlet; the axial-flow cyclone separator of any one, wherein the axial-flow cyclone separator is arranged in the dust cup, an air inlet of the axial-flow cyclone separator faces the air flow inlet, a first dust accumulation cavity is formed between the outer wall of a flow distribution cylinder of the axial-flow cyclone separator and the inner wall of the dust cup, and the dust discharge port is communicated with the inner cavity of the flow distribution cylinder and the first dust accumulation cavity; and the filter is arranged in the dust cup and is positioned at the downstream of the exhaust port of the axial flow cyclone separator.

Because the dust and dirt separating device comprises the ground axial flow cyclone separator, the dust and dirt separating device comprises all the beneficial effects of the ground axial flow cyclone separator, and the detailed description is omitted.

In an alternative embodiment, the outer wall of the axial-flow cyclone separator is provided with a first installation part and a second installation part which extend radially respectively and are mutually spaced in the axial direction, the first installation part is arranged at the downstream of the air inlet flow in the axial-flow cyclone separator, the first installation part and the second installation part are respectively abutted with the inner wall of the dust cup so as to form a first dust accumulation cavity between the first installation part and the second installation part, and a dust discharge port of the axial-flow cyclone separator is arranged between the first installation part and the second installation part.

The exhaust pipe and the diversion main pipe are respectively fixed in the dust cup through the first installation part and the second installation part, so that the accommodating space of the first dust accumulation cavity is guaranteed.

In an alternative embodiment, the first mounting portion and the second mounting portion are respectively provided with an annular groove, and a sealing ring is arranged in the annular groove and is suitable for abutting against the inner wall of the dust cup.

Through the inner wall butt of sealing washer and dirt cup, can prevent that the air current from passing through, can avoid carrying the air current of dust to flow out first laying dust chamber, cause the emergence of dust circumstances of flying upward, can further optimize laying dust effect.

In an alternative embodiment, a radially protruding limiting structure is arranged on the inner wall of the dust cup, and the second mounting part is abutted against the limiting structure.

The second installation part is limited by arranging the radial protruding limiting structure on the inner wall of the dust cup, so that the position of the axial cyclone shunt in the dust cup is limited, and the accommodating space of the second dust accumulation cavity is ensured.

In an alternative embodiment, the axial distance between the end face of the dust discharge opening and the first mounting part is 1 to 13 mm.

The axial distance between the end face of the dust discharging port and the first installation part is set to be 1-13 mm, so that the smooth throwing out of the rotating dust particles can be well ensured, and meanwhile, the back mixing of dust in the fine dust accumulation cavity into the separating barrel can be reduced.

In an alternative embodiment, the axial distance between the end face of the dust discharge opening and the first mounting part is 8 mm.

The axial distance between the end face of the dust discharging port and the first installation part is set to be 8 millimeters, so that the rotating dust particles can be better ensured to be thrown out smoothly, and meanwhile, the back mixing of dust in the fine dust accumulation cavity into the separating barrel can be reduced.

In an alternative embodiment, the dust-dirt separation device further comprises a dust cup cover, the dust cup cover is provided with an air flow inlet, the dust cup cover is detachably connected with the dust cup, and a second dust accumulation cavity is formed between the dust cup cover and the diversion barrel.

The second dust accumulation cavity can be formed with the second installation part through the dust cup cover so as to accommodate large-particle dust.

The application also provides a vehicle-mounted dust collector, which comprises any dust and dirt separation device, wherein the air inlet and the air outlet of the axial-flow cyclone separator of the dust and dirt separation device are arranged opposite to each other.

Because the dust and dirt separating device comprises the ground axial flow cyclone separator, the dust and dirt separating device comprises all the beneficial effects of the ground axial flow cyclone separator, and the detailed description is omitted. In addition, the air inlet and the air outlet of the axial-flow cyclone separator of the dust and dirt separation device are arranged oppositely, so that the axial-flow cyclone separator can be suitable for a vehicle-mounted dust collector with a rod-shaped structure, and the vehicle-mounted dust collector can meet the requirements of small volume and convenience in carrying.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of an axial flow cyclone separator according to an embodiment of the present application;

FIG. 2 is a schematic perspective view of a deflector of an axial cyclone separator according to an embodiment of the present application;

FIG. 3 is a cross-sectional structural view of a dust-dirt separation device according to an embodiment of the present application;

FIG. 4 is a schematic perspective view of an axial cyclone separator of a dust separating apparatus according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of a dirt cup of a dirt separation apparatus in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a vehicle vacuum cleaner in a partial cross-sectional configuration according to an embodiment of the present application;

FIG. 7 is an exploded view of a vehicle vacuum cleaner according to an embodiment of the present application;

fig. 8 is a schematic perspective view of a vehicle-mounted dust collector according to an embodiment of the application.

Reference numerals illustrate:

10. a vehicle-mounted dust collector;

100. a dust-dirt separation device; 200. a dust collection main body member;

110. an axial flow cyclone separator;

111. a shunt barrel; 101. an air inlet; 102. an exhaust port; 103. a dust discharge port;

112. a flow guide; 1121. a guide vane; 1123. a blade shaft;

1111. a split-flow main drum; 1113. an exhaust pipe; 1115. a first mounting portion; 1117. a second mounting portion; 1119. an annular groove;

120. a filter screen;

130. a dust cup; 131. a limit structure; 133. a first dust accumulation cavity; 135. a second dust accumulation cavity;

140. a dust cup cover; 141. an air flow inlet;

150. and (3) a filter.

The direction of the arrow shown in the figure is the direction of the air flow.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Summary of the application

Portable vehicle-mounted dust collectors are small and light to be favored by users, but are limited in that the volume cannot be increased by using a traditional cyclone separator on a push rod dust collector, wherein the traditional cyclone separator adopts tangential air inlet, so that the volume is increased, and therefore, in general, a dust and dirt separation structure of the vehicle-mounted dust collector basically adopts a metal filter screen 120+high-efficiency filter paper (High Efficiency Particulate, abbreviated as HEPA).

The aperture of the metal filter screen is generally 0.4mm, namely, dirt particles with the diameter larger than 0.4mm can be filtered, but dust with the diameter smaller than 0.4mm can directly pass through the metal filter screen to flow to the rear end and be intercepted by HEPA, so that the HEPA is easy to accumulate dust to generate blockage. HEPA blocks up and can lead to on-vehicle dust catcher suction to descend, and then inhale not to get dirty, influences user experience.

The application solves the problems that the vehicle-mounted dust collector can not separate fine dust particles and HEPA is easy to block.

Embodiments of the present application are described below with reference to fig. 1 to 8.

As shown in fig. 1 and 2, according to an aspect of the present application, there is provided an axial flow cyclone 110 including: the two ends of the flow distribution cylinder 111 are respectively provided with an opening, one end of the flow distribution cylinder 111 is provided with an air inlet 101, the other end of the flow distribution cylinder 111 is provided with an air outlet 102 at the opening, the position, close to the air outlet 102, of the flow distribution cylinder 111 is provided with a dust discharge opening 103, the dust discharge opening 103 is positioned below the air outlet 102, the dust discharge opening 103 is communicated with the inner cavity of the flow distribution cylinder 111, the flow guide 112 is arranged in the air inlet 101, and the flow guide 112 comprises a plurality of flow guide vanes 1121, so that the entering air flow generates cyclone air flow moving towards the air outlet 102.

The above-described flow dividing cylinder 111 has a cylindrical structure, and the exhaust port 102 is provided at one end of the flow dividing cylinder 111. The guide member 112 specifically includes a vane shaft 1123 and a plurality of guide vanes 1121, the plurality of guide vanes 1121 are sequentially spaced from each other and are respectively connected to the vane shaft 1123, and the guide vanes 1121 are connected to the inner wall of the splitter cylinder 111, the guide vanes 1121 extending in the direction of the exhaust port 102 along the axial direction of the splitter cylinder 111.

The number of the guide vanes 1121 may be at least two, or may be four, five, or the like as required.

When the air flow mixed with the solid particles enters between the plurality of guide vanes 1121 of the guide member 112 from the air inlet 101, the air flow containing the solid particles can generate a rotating air flow under the rotation action of the guide member 112, the rotating air flow carries the air mixed with the solid particles to move towards the air outlet 102 while rotating, and under the action of the drag force generated by the cyclone, part of the fixed particles can move along with the air flow towards the direction close to the inner wall of the flow dividing cylinder 111, so that the air flow contacts with the inner wall of the flow dividing cylinder 111 to fall, and the separation action on the solid particles contained in the air flow is achieved. At the same time, part of the fine particles in the solid particles move to the dust discharge port 103 along with the upward movement of the air flow towards the air discharge port 102, so that part of the solid particles can be discharged out of the separating cylinder along with the air flow from a position close to the air discharge port 102, the part of the solid particles are prevented from rising due to reentering into the rotating air flow in the falling process, and the content of the solid particles in the air discharged from the air discharge port 102 is reduced.

In another embodiment, as further shown in fig. 2, the end of the guide vane 1121 near the exhaust port 102 is bent toward a side of the guide vane 1121 to form a bent portion.

The guide vane 1121 bends towards one side of the guide vane 1121 at the downstream of the air flow, so that the formed bending part can prevent part of the solid particles in the air flow from continuing to move towards the air outlet 102, so that the solid particles in the air flow can fall under the action of centrifugal force, and the content of the solid particles entering the rotating air flow is reduced.

In another embodiment, as shown in fig. 1, the air inlet 101 is opposite to the air outlet 102, and compared with the conventional cyclone separator using tangential air inlet, the direction of the air outlet 102 is required to be changed to discharge, so that the air flow is turned to generate larger wind resistance, and when the air inlet 101 is opposite to the air outlet 102, although the air flow is also rotated by the guide vane 1121, dust particles are thrown to the wall of the splitter cylinder 111 and discharged from the dust outlet 103, in the process, the air flow still rotates to flow towards the direction of the air outlet 102 all the time, and no direction change is required, so that the wind resistance is smaller.

The axial flow cyclone separator 110 also has a large gas throughput and high efficiency because the internal swirling flow existing in the conventional countercurrent reverse cyclone separator using tangential gas inlet is eliminated, the main movement direction of the gas flow is not changed, and the pressure loss of operation is reduced.

In another embodiment, continuing with FIG. 1, diverter cartridge 111 comprises: the device comprises a diversion main barrel 1111 and an exhaust barrel 1113, wherein an air inlet 101 is formed in one end of the diversion main barrel 1111, the exhaust barrel 1113 surrounds an air outlet 102, one end of the exhaust barrel 1113 extends into the other end of the diversion main barrel 1111 and is connected with the diversion main barrel 1111, and a gap is formed between the outer wall of the exhaust barrel 1113 and the inner wall of the diversion main barrel 1111 to form a dust exhaust port 103.

The main flow-dividing cylinder 1111 may have a straight cylindrical structure, the air inlet 101 is disposed at one end of the main flow-dividing cylinder 1111, the flow-guiding member 112 is disposed in the main flow-dividing cylinder 1111, and the flow-guiding vane 1121 and the main flow-dividing cylinder 1111 may be integrally disposed. The dust exhaust port 103 is formed at the other end of the diverting main cylinder 1111, and the exhaust cylinder 1113 partially extends into the other end of the diverting main cylinder 1111, so that the dust exhaust port 103 is disposed around the outside of the cylinder wall of the exhaust cylinder 1113 extending into the inside of the diverting main cylinder 1111.

Wherein, the exhaust pipe 1113 may be connected to the inner wall of the main diversion pipe 1111 through a plurality of ribs or ribs, so as to fix the exhaust pipe 1113 to the main diversion pipe 1111.

As shown in fig. 1, the projection of the dust exhaust opening 103 in the axial direction has a partial overlapping area with the air exhaust opening 102, when the cyclone airflow containing solid particles moves to the air inlet end of the air exhaust opening 102, the solid particles in the cyclone airflow enter the dust exhaust opening 103 to be exhausted, and the content of the solid particles entering the air exhaust opening 102 is reduced.

In another embodiment, continuing with the description of FIG. 1, the exhaust stack 1113 is a tapered stack such that the dust exhaust port 103 has a cross-sectional area perpendicular to the center of the splitter stack 111 that gradually decreases in the direction of airflow and the exhaust port 102 has a cross-sectional area that gradually increases in the direction of airflow.

The direction of the arrows in fig. 1 is indicated as the direction of the air flow. The main body structure of the exhaust funnel 1113 is tapered, the outer wall of the exhaust funnel 1113 is inclined from inside to outside, and a blocking effect is formed on the air flow entering the dust exhaust port 103, so that after solid particles contained in the air flow entering the dust exhaust port 103 can touch the outer wall of the exhaust funnel 1113, under the action of reaction, the solid particles can fall into the outer space of the diversion funnel 111 to be collected, and the purpose of discharging the solid particles is achieved.

In addition, when the rotating air flow enters the air outlet 102, the flow velocity of the air flow is reduced due to the gradual increase of the cross section of the air outlet 102, so that the flow velocity of solid particles in the air flow can be reduced, more solid particles contained in the air flow are dropped under the action of gravity, and the content of the solid particles in the air flow discharged from the air outlet 102 is reduced.

On the other hand, as shown in fig. 3 and 4, according to an embodiment of the present application, there is provided a dust-dirt separation apparatus 100, the dust-dirt separation apparatus 100 including: the dust cup 130, the axial-flow cyclone 110 of any one and the filter 150, both ends of the dust cup 130 have the opening respectively, one end of the dust cup 130 is equipped with the air current entry 141, the axial-flow cyclone 110 is located in the dust cup 130, and the air inlet 101 of the axial-flow cyclone 110 faces the air current entry 141, be formed with first laying dust chamber 133 between the outer wall of the reposition of redundant personnel section of thick bamboo 111 of the axial-flow cyclone 110 and the inner wall of the dust cup 130, the dust discharge port 103 communicates with the inner chamber of reposition of redundant personnel section of thick bamboo 111 and first laying dust chamber 133 each other, the filter 150 is located in the dust cup 130, and be located the gas vent 102 of the axial-flow cyclone 110 low reaches.

The dust cup 130 is made of transparent material, so as to facilitate dust collection through the dust cup 130 and to more intuitively penetrate the filter 150 to determine whether the filter is clogged.

The dust cup 130 is also in a cylindrical structure, one end of the dust cup 130 is provided with an air flow inlet 141, so that air flow can enter the dust cup 130, the air flow entering the dust cup 130 enters the air inlet 101 of the axial-flow cyclone separator 110 again, the air flow then enters between a plurality of guide vanes 1121 of the guide piece 112 from the air inlet 101, the air flow can generate rotary air flow under the rotary action of the guide piece 112, the rotary air flow carries the air mixed with solid particles to move towards the air outlet 102 while rotating, and part of the fixed particles move along with the air flow towards the direction close to the inner wall of the barrel of the splitter barrel 111 under the action of drag force generated by cyclone, so that the air flow collides with the inner wall of the splitter barrel 111 and falls into the dust cup 130, and the separation effect of the solid particles contained in the air flow is achieved. Meanwhile, part of the solid particles move to the dust exhaust port 103 along with the upward movement of the airflow towards the exhaust port 102, so that part of the solid particles can enter the first dust accumulation cavity 133 to be collected along with the airflow from a position close to the exhaust port 102, and the part of the solid particles are prevented from entering the rotating airflow again to rise in the falling process, so that the content of the solid particles in the gas exhausted from the exhaust port 102 is reduced.

The air flow discharged from the air outlet 102 contacts with the filter 150, and the filter 150 may further consider the air flow, thereby achieving the effect of purifying the air, and the clean air filtered by the filter 150 may be discharged into the ambient air.

Specifically, the filter 150 is HEPA, and the HEPA is mainly composed of ultrafine polypropylene fiber filter paper or glass fiber filter paper, non-woven fabric, hot melt adhesive, sealant, outer frame material such as paper shell edge, etc., wherein the glass fiber filter paper is produced by glass fibers with different thickness and different length through a special processing technology, and has the characteristic of large dust holding capacity, and can effectively trap the particle dust with the size of more than 0.5um, thereby achieving the effect of purifying air.

The axial cyclone 110 is further provided with a filter screen 120 made of metal, and the filter screen 120 is disposed on the air inlet 101, wherein the filter screen 120 may be disposed on an inner wall of the dust cup 130 or may be disposed on the splitter cylinder 111 of the axial cyclone. The dust is sucked into the dust cup 130 and then sequentially passes through the filter screen 120, the axial-flow cyclone 110 and the filter 150 for step-by-step separation and filtration.

The mixed dust gas enters the dust cup 130 through the air flow inlet 141 of the dust cup cover 140, and is filtered by the filter screen 120 while being sucked into the axial flow cyclone 110, the aperture of the filter screen 120 is 0.2 mm to 0.4mm, dust particles larger than the aperture are left in the large particle dust accumulation cavity, and dust particles smaller than the aperture enter the axial flow cyclone 110 through the filter screen 120.

The mixed dust gas enters the separating cylinder through the air inlet 101, the air flow is driven to rotate at a high speed through the guide vane 1121, dust particles in the air flow rotate at a high speed and are acted on the inner wall surface of the separating cylinder by centrifugal force to move, finally, the dust particles are thrown out through the dust exhaust port 103, the center of the rotating air flow is clean air flow, and the clean air flow flows to the HEPA through the air outlet 102.

The airflow separated by the axial flow cyclone 110 contains only a very small amount of fine dust particles, and the airflow continues to move through and be intercepted by the HEPA. Most dust particles in the mixed dust gas are separated in the previous two-stage filtration, so that dust particles accumulated on the HEPA are greatly reduced, the time of blocking the HEPA is delayed, and the excessively rapid attenuation of the suction of the whole machine is avoided. The service life of HEPA is prolonged, the frequency of purchasing consumables by users is reduced, and the cost is saved.

In another embodiment, as further shown in fig. 3 and 4, the outer wall of the axial cyclone 110 is provided with a first mounting portion 1115 and a second mounting portion 1117 which extend radially and are spaced apart from each other in the axial direction, the first mounting portion 1115 is disposed downstream of the intake air flow in the axial cyclone 110, the first mounting portion 1115 and the second mounting portion 1117 are respectively abutted against the inner wall of the dust cup 130 to form a first dust accumulation cavity 133 between the first mounting portion 1115 and the second mounting portion 1117, and the dust discharge port 103 of the axial cyclone 110 is disposed between the first mounting portion 1115 and the second mounting portion 1117.

Wherein the first mounting portion 1115 is disposed at an end of the exhaust pipe 1113 remote from one end of the dust discharge port 103 and extends radially, and the first mounting portion 1115 may be formed in a disk-shaped structure having a certain depth, and dust falling from the filter 150 may be received on a bottom surface of the first mounting portion 1115. The outer wall of the first mount 1115 may abut against the inner wall of the dirt cup 130, thereby securing the location of the chimney 1113. Similarly, the second installation part 1117 may have the same structure as the first installation part 1115, the second installation part 1117 is disposed around the outer wall of the diverting main cylinder 1111, and a disc structure with a certain depth is also formed, when the second installation part 1117 abuts against the inner wall of the dust cup 130, a closed space is formed between the first installation part 1115 and the second installation part 1117, and the closed space is the first dust accumulation cavity 133, so as to satisfy the effect of collecting dust particles discharged from the dust discharge port 103.

In addition, the exhaust pipe 1113 may be disposed on an inner wall of the dust cup 130 to be integrated with the dust cup 130, such that the exhaust pipe 1113 may divide an inner cavity of the dust cup 130 into front and rear chambers, the front chamber houses the axial flow cyclone 110, and the rear chamber houses the HEPA. In this configuration, the axial cyclone 110 is removable from the front of the dirt cup 130 after the dirt cup cover 140 is opened, and the HEPA is removable from the rear of the dirt cup 130 after the dirt cup 130 assembly is separated from the host.

In another embodiment, and as further shown in FIG. 4, the first and second mounting portions 1115, 1117 are each provided with an annular groove 1119, with a sealing ring disposed within the annular groove 1119, the sealing ring being adapted to abut an inner wall of the dirt cup 130.

The first installation portion 1115 and the second installation portion 1117 are respectively provided with the annular groove 1119, the annular groove 1119 is formed in the outer surfaces of the first installation portion 1115 and the second installation portion 1117, the annular groove 1119 is internally provided with the sealing ring, the sealing ring is abutted against the inner wall of the dust cup 130, the air flow is prevented from passing through, the air flow carrying dust can be prevented from flowing out of the first dust accumulation cavity 133, dust flying can be prevented, and the dust accumulation effect can be further optimized.

In another embodiment, as further shown in fig. 3 and 5, a radially protruding limiting structure 131 is disposed on the inner wall of the dust cup 130, and the second mounting portion 1117 abuts against the limiting structure 131.

The limit structure 131 is arranged on the bottom wall of the dust cup 130, and since the second installation part 1117 is arranged at the upstream of the inlet air flow, the second installation part 1117 is abutted with the limit structure 131, so that the axial-flow cyclone separator 110 is conveniently fixed in the dust cup 130. The limiting structure 131 includes a limiting rib protruding radially and circumferentially, and the second mounting portion 1117 may overlap the limiting rib. A large particle dust accumulation cavity is formed below the second installation part 1117, so that large particle dust falling into the dust accumulation cavity can be collected conveniently.

In addition, the annular limiting ribs can be set to be in a complete annular shape, or intermittent annular shapes are formed through the rib sections, so that the axial flow cyclone separator 110 is fixed, the axial flow cyclone separator 110 is prevented from falling down, and the volume of the large-particle dust accumulation cavity can be ensured.

In further embodiments, continuing to refer to fig. 1, the axial distance between the end surface of the dust discharge opening 103 and the first mounting portion 1115 is 1 to 13 millimeters.

The axial distance between the end surface of the dust discharge port 103 and the first installation portion 1115 is the width of the dust discharge port 103 of the axial flow cyclone separator 110, and the dust discharge port 103 in the width interval can better ensure smooth throwing out of the rotating dust particles, and meanwhile, can reduce back mixing of dust in the fine dust accumulation cavity into the separating cylinder.

In another embodiment, the axial distance between the end surface of the dust exhaust 103 and the first mounting portion 1115 is 8 mm, so that the dust exhaust 103 can better ensure smooth throwing out of the rotating dust particles, and meanwhile, the back mixing of the dust in the fine dust accumulation cavity into the separating cylinder can be reduced.

In another embodiment, as shown in fig. 6 and 7, the dust and dirt separation apparatus 100 further includes a dust cup cover 140, the dust cup cover 140 having an air flow inlet 141, the dust cup cover 140 being detachably connected to the dust cup 130, and a second dust accumulation chamber 135 being formed between the dust cup cover 140 and the diverting cylinder 111.

The second dust chamber 135 is a large particle dust chamber. The dust cup cover 140 is provided with an air inlet 141, and the air inlet 141 is disposed opposite to the air inlet 101 of the axial flow cyclone 110. The dust cup cover 140 has a chassis facing the axial cyclone 110, and a second dust accumulation chamber 135 may be formed between the chassis and the second mount 1117, and the second dust accumulation chamber 135 may collect larger dust particles separated from the separation cylinder.

According to an embodiment of the present application, on the other hand, as shown in fig. 8, there is also provided a vehicle-mounted dust collector 10, where the vehicle-mounted dust collector 10 includes the dust and dirt separating apparatus 100 described above, and the air inlet 101 and the air outlet 102 of the axial flow cyclone separator 110 of the dust and dirt separating apparatus 100 are disposed opposite to each other, so that the axial flow cyclone separator 110 can be applied to the vehicle-mounted dust collector 10 with a rod-shaped structure, so that the vehicle-mounted dust collector 10 can meet the requirements of small volume and portability.

The above-mentioned on-vehicle vacuum cleaner 10 further includes a vacuum cleaner body member 200, and the vacuum cleaner body member 200 is connectable to the dust cup 130, and the diameters of the dust cup 130 and the vacuum cleaner body member 200 are between 45 mm and 50 mm. The dust cup 130 and the dust collection main body 200 are fixed by a fixing structure, such as a turnbuckle, a buckle, a screw thread, etc. A rotating shaft is arranged between the dust cup cover 140 and the dust cup 130, and the dust cup cover 140 can rotate around the rotating shaft to open or close the dust cup 130, so that a second dust accumulation cavity 135 is formed between the dust cup cover 140 and the second installation part 1117.

The above-mentioned vehicle-mounted dust collector 10 can separate dust particles with a particle size greater than 10um by the axial flow cyclone 110, and the separated dust particles flow to the first dust accumulation cavity 133, i.e., the fine dust accumulation cavity, through the dust discharge port 103. The very small amount of dust after the two-stage separation flows to the HEPA and is intercepted.

Although embodiments of the present application have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the application, and such modifications and variations fall within the scope of the application as defined by the appended claims.

Claims

1. An axial flow cyclone separator (110), characterized by comprising:

the two ends of the split flow cylinder (111) are respectively provided with an opening, one end of the split flow cylinder is provided with an air inlet (101), the other end of the split flow cylinder is provided with an air outlet (102), the position, close to the air outlet (102), of the split flow cylinder (111) is provided with a dust exhaust port (103), the dust exhaust port (103) is positioned below the air outlet (102), and the dust exhaust port (103) is communicated with the inner cavity of the split flow cylinder (111);

and a deflector (112) disposed within the air inlet (101), the deflector (112) comprising a plurality of deflector blades (1121) such that an incoming airflow generates a cyclonic airflow moving in the direction of the air outlet (102).

2. The axial flow cyclone separator (110) according to claim 1, wherein the air inlet (101) is arranged opposite the air outlet (102).

3. The axial flow cyclone separator (110) of claim 1, wherein the splitter cylinder (111) comprises:

a diversion main cylinder (1111), one end of which is provided with the air inlet (101);

the exhaust pipe (1113) encloses the exhaust port (102), one end of the exhaust pipe (1113) stretches into the other end of the diversion main pipe (1111) and is connected with the diversion main pipe (1111), and a gap is formed between the outer wall of the exhaust pipe (1113) and the inner wall of the diversion main pipe (1111) to form the dust exhaust port (103).

4. An axial flow cyclone separator (110) according to claim 3, wherein the exhaust pipe (1113) is a cone-shaped pipe such that the dust discharge port (103) is gradually reduced in the air flow direction along a cross-sectional area perpendicular to the center of the split pipe (111), and the air discharge port (102) is gradually increased in the air flow direction.

5. The axial flow cyclone separator (110) of any of claims 1-4, wherein an end of the guide vane (1121) near the exhaust port (102) is bent toward a side of the guide vane (1121) to form a bent portion.

6. A dust-dirt separation apparatus (100), characterized by comprising:

the dust cup (130) is provided with openings at two ends, and one end of the dust cup (130) is provided with an airflow inlet (141);

the axial cyclone separator (110) according to any one of claims 1 to 5, wherein the axial cyclone separator (110) is disposed in the dust cup (130), and an air inlet (101) of the axial cyclone separator (110) faces the air flow inlet (141), a first dust accumulation cavity (133) is formed between an outer wall of a diversion barrel (111) of the axial cyclone separator (110) and an inner wall of the dust cup (130), and the dust discharge port (103) is communicated with an inner cavity of the diversion barrel (111) and the first dust accumulation cavity (133);

and a filter (150) disposed within the dirt cup (130) and downstream of the exhaust port (102) of the axial flow cyclone (110).

7. The dust-dirt separation apparatus (100) of claim 6, wherein an outer wall of the axial-flow cyclone (110) is provided with a first mounting portion (1115) and a second mounting portion (1117) that extend radially and are axially spaced apart from each other, respectively, the first mounting portion (1115) is provided downstream of an intake flow in the axial-flow cyclone (110), the first mounting portion (1115) and the second mounting portion (1117) are abutted against an inner wall of the dust cup (130) respectively to form the first dust-collecting chamber (133) between the first mounting portion (1115) and the second mounting portion (1117), and a dust discharge port (103) of the axial-flow cyclone (110) is located between the first mounting portion (1115) and the second mounting portion (1117).

8. The dust-dirt separation device (100) of claim 7, wherein the first mounting portion (1115) and the second mounting portion (1117) are each provided with an annular groove (1119), and wherein a sealing ring is provided in the annular groove (1119), the sealing ring being adapted to abut against an inner wall of the dust cup (130).

9. The dust-dirt separation device (100) of claim 7, wherein the inner wall of the dust cup (130) is provided with a radially protruding limiting structure (131), and the second mounting portion (1117) abuts against the limiting structure (131).

10. The dust-dirt separation device (100) of any one of claims 7 to 9, wherein an axial distance between an end face of the dust discharge opening (103) and the first mounting portion (1115) is 1 to 13 millimeters.

11. The dust-dirt separation device (100) of claim 10, wherein an axial distance between an end face of the dust discharge port (103) and the first mounting portion (1115) is 8 millimeters.

12. The dust and dirt separation apparatus (100) of any one of claims 6 to 9, further including a dust cup cover (140), the dust cup cover (140) having an airflow inlet (141), the dust cup cover (140) being detachably connected to the dust cup (130), a second dust accumulation chamber (135) being formed between the dust cup cover (140) and the diverter barrel (111).

13. A vehicle-mounted vacuum cleaner (10) comprising a dust and dirt separation apparatus (100) according to any one of claims 6 to 12, wherein the inlet (101) of the axial flow cyclone separator (110) of the dust and dirt separation apparatus (100) is disposed opposite the outlet (102).