CN118235996A

CN118235996A - Cyclone separating apparatus and cleaning device

Info

Publication number: CN118235996A
Application number: CN202211663561.0A
Authority: CN
Inventors: 张骏; 袁广运; 姜洲
Original assignee: Dreame Innovation Technology Suzhou Co Ltd
Current assignee: Dreame Innovation Technology Suzhou Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2024-06-25
Also published as: WO2024131578A1

Abstract

The invention discloses a cyclone separating device and cleaning equipment. The cyclone separation device is provided with an inner cavity and comprises a primary separator. The first-stage separator comprises a spiral section which is arranged in the inner cavity and forms a first-stage spiral flow passage which is axially distributed with the cavity wall of the inner cavity. The spiral section comprises an air inlet pipe and a spiral winding, and the spiral winding is spirally arranged on the outer surface of the air inlet pipe. The air inlet pipe is provided with an air inlet channel, a guide part and a lateral outlet, one end of the air inlet channel is used for air inlet, the guide part is arranged in the air inlet channel and used for guiding air flow in the air inlet channel to the lateral outlet, and the lateral outlet is communicated with the air inlet channel and the primary spiral flow channel. The primary spiral flow passage of the cyclone separation device adopts axial air inlet to generate cyclone, and the airflow is not or less deflected in the axial direction, so that the flow loss is reduced, and the problem of larger flow loss caused by large deflection of the airflow in the axial direction is solved.

Description

Cyclone separating apparatus and cleaning device

Technical Field

The invention belongs to the technical field of cleaning equipment, and particularly relates to a cyclone separation device and cleaning equipment.

Background

Air-dust separation is one of the main working tasks of a vacuum cleaner, which draws dust-laden gas into a dust collecting device by a blower and separates dust from air by an air-dust separation technique while remaining in the dust collecting device. The purified air is sucked by the fan and discharged out of the machine back to the atmosphere.

Common gas-dust separation modes include a filtration type and a cyclone type. The cyclone separation mode rotates dust-containing gas at a high speed, and utilizes the different characteristics of the centrifugal force of the gas and the dust to throw out the dust, so that the gas is sucked away, the gas and the dust separation efficiency of the mode can reach more than 99 percent at present, and the cyclone separation mode can not block a downstream filter component (such as filter cotton or a HEPA), thereby not causing the attenuation of dust collection performance. In general, a separation device using cyclone separation of dust usually adopts top lateral air intake, dust-containing air flow rotates to move downwards, air after gas-dust separation is sucked upwards in a cyclone in the separation device, dust stays at the bottom of the separation device, and the air flow needs to be turned by 180 degrees in the axial direction, so that larger flow loss is caused.

Disclosure of Invention

The object of the invention is therefore to provide a cyclone-type separation device in which the airflow is largely deflected in the axial direction, which results in a large flow loss.

In order to solve the technical problems, the invention provides a cyclone separation device, which is provided with an inner cavity and comprises a primary separator;

the primary separator comprises a spiral section, wherein the spiral section is arranged in the inner cavity, and forms a primary spiral flow passage which is axially distributed with the cavity wall of the inner cavity;

The spiral section comprises an air inlet pipe and a spiral winding, and the spiral winding is spirally arranged on the outer surface of the air inlet pipe; the air inlet pipe is provided with an air inlet channel, a guide part and a lateral outlet, one end of the air inlet channel is used for air inlet, the guide part is arranged in the air inlet channel and used for guiding air flow in the air inlet channel to the lateral outlet, and the lateral outlet is communicated with the air inlet channel and the primary spiral flow channel.

Optionally, the cyclone separation device is further provided with a sealed primary dust cavity, and the primary dust cavity surrounds at least part of the inner cavity; the primary separator further comprises an exhaust section, one end of the exhaust section is connected with the spiral section, the other end of the exhaust section is connected with one end of the inner cavity, and the exhaust section is used for communicating the inner cavity with an external space; the dust exhaust device comprises an inner cavity, a first-stage dust cavity and a second-stage dust cavity, wherein a dust exhaust port is formed in the wall of the inner cavity, and the dust exhaust port is arranged corresponding to the exhaust section and is communicated with the inner cavity and the first-stage dust cavity.

Optionally, the cyclone separation device is further provided with a sealed secondary dust cavity, and the secondary dust cavity and the primary dust cavity are arranged at intervals; the cyclone separation device also comprises a secondary separator, one end of the secondary separator is connected with the other end of the exhaust section, the other end of the secondary separator penetrates through a cavity wall of the secondary dust cavity, and the secondary separator comprises:

the main body is internally provided with a plurality of separation channels at intervals, and each separation channel is communicated with the inner cavity and the secondary dust cavity through the exhaust section; and

The spiral structures are arranged in one separation channel, and a secondary spiral flow channel which is axially distributed is formed between the spiral structures and the channel wall of the separation channel;

the other opposite cavity wall of the secondary dust cavity is provided with an exhaust structure, and the exhaust structure is used for exhausting air flow passing through the secondary spiral flow channel.

Optionally, the cyclone separation device is further provided with a sealed secondary dust cavity, and the secondary dust cavity and the inner cavity are arranged at intervals; the cyclone separation device also comprises a secondary separator, one end of the secondary separator is arranged corresponding to the inner cavity, the other end of the secondary separator penetrates through a cavity wall of the secondary dust cavity, and the secondary separator comprises:

The main body is internally provided with a plurality of separation channels at intervals, and each separation channel is communicated with the inner cavity and the secondary dust cavity; and

Optionally, the cyclone separation device, the separation channel includes a separation section and an air outlet section, the spiral structure is disposed on the separation section, and the air outlet section is respectively communicated with the separation section and the secondary dust cavity and is used for axially discharging the air flow passing through the separation section.

Optionally, the cyclone separation device, the separation channel further comprises an air inlet section, and the air inlet section is respectively communicated with the inner cavity and the separation section and is used for axially inputting air flow.

Optionally, the cyclone separation device comprises an inner core and a spiral blade, wherein the spiral blade is spirally arranged on the outer surface of the inner core and is connected with a channel wall of the separation channel to form the secondary spiral flow channel; the inner core comprises a separation part and a drainage part which are axially connected, the spiral blades are arranged on the outer surface of the separation part, and the drainage part is gradually arranged in the axial airflow direction.

Optionally, the cyclone separating apparatus is characterized in that the separating portion is gradually increased in the axial airflow direction.

Optionally, the cyclone separation device comprises a plurality of spaced exhaust ducts, each of the exhaust ducts extends into one of the separation channels, is close to the end of the drainage portion, and is spaced from the channel wall of the separation channel; and each exhaust conduit is internally provided with an exhaust through hole, and the exhaust through holes are communicated with the separation channel and the space outside the secondary dust cavity.

Optionally, in the cyclone separation device, the secondary separator is of an integrally formed structure.

Optionally, the cyclone separating device, the spiral section is detachably connected with the exhaust section; or the spiral section and the exhaust section are arranged in a blocking way.

Optionally, in the cyclone separation device, the primary dust cavity is gradually enlarged in the axial airflow direction.

Optionally, the cyclone separation device, the exhaust section includes:

the exhaust pipe is internally provided with an exhaust channel, the pipe wall of the exhaust pipe is provided with an air inlet, and the air inlet is communicated with the inner cavity and the exhaust channel;

The connecting sleeve is arranged at one end of the exhaust pipe, the connecting sleeve is connected with one end of the inner cavity, and the diameter of the connecting sleeve is gradually increased in the axial airflow direction.

Optionally, the lateral outlet is arranged between two axially adjacent spiral segments of the spiral winding, and the guiding part is spirally arranged and connected with one spiral segment; the spiral section also comprises a side-gear structure, and the side-gear structure is connected with two axially adjacent spiral sections to form the starting end of the primary spiral flow passage in a surrounding mode.

The invention also provides cleaning equipment which comprises a host machine and the cyclone separation device, wherein the cyclone separation device is arranged on the host machine.

The technical scheme provided by the invention has the following advantages:

By arranging the primary separator in the inner cavity, a primary spiral flow passage is formed between the spiral section of the primary separator and the cavity wall of the inner cavity, and the primary spiral flow passage is axially distributed. When the cyclone dust collector works, air flow enters the inner cavity, and under the flow guiding effect of the primary spiral flow channel, the air flow moves along the axial direction to form a cyclone, after passing through the primary spiral flow channel, the air flow rotates circumferentially to separate dust from air, and the dust is tightly attached to the cavity wall of the inner cavity to move forwards to be collected due to the large centrifugal force. Therefore, the primary spiral flow passage of the cyclone separation device adopts axial air inlet to generate cyclone, and the airflow is not or less deflected in the axial direction, so that the flow loss is reduced, and the problem of larger flow loss caused by large deflection of the airflow in the axial direction is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, 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 view of a cyclone separating apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the cyclone separator of FIG. 1 from another perspective;

FIG. 3 is a cross-sectional view of the cyclone separator of FIG. 1;

FIG. 4 is another cross-sectional view of the cyclone separator of FIG. 1;

FIG. 5 is an exploded view of the cyclone separation apparatus of FIG. 1;

FIG. 6 is a cross-sectional view of a secondary separator of the cyclone separator of FIG. 3;

FIG. 7 is a cross-sectional view of a second embodiment of a cyclonic separating apparatus provided in example 1 of the present invention;

FIG. 8 is a cross-sectional view of a third embodiment of a cyclonic separating apparatus provided in example 1 of the present invention;

FIG. 9 is a schematic view of a cleaning apparatus according to an embodiment 2 of the present invention;

Fig. 10 is an exploded view of the cleaning device of fig. 9.

Reference numerals illustrate:

100-cyclone separation device; 101-lumen; 102-a first-level dust cavity; 103-a secondary dust chamber; 104-an exhaust structure; 105-an exhaust duct; 106-an exhaust through hole;

110-a primary separator; 111-a dust discharge port;

120-helical segments; 121-a primary spiral flow channel; 122-an intake passage; 123-lateral outlet; 124-guides; 125-an air inlet pipe; 126-spiral winding; 127-side gear structure; 128-helical fragments;

130-an exhaust section; 131-an exhaust pipe; 132-connecting sleeve; 133-an exhaust passage; 134-air inlet holes;

140-a central air inlet pipe; 142-an intake runner; 144-air inlet; 146-socket;

150-a cover;

160-secondary separator; 161-body; 162-helix structure; 163-separation channel; 163 a-separation section; 163 b-an outlet section; 163 c-an intake section; 164-a secondary spiral flow channel; 165-inner core; 166-helical blades; 167-a separation section; 168-drainage portion;

170-cavity member; 172-mounting rings;

180-a filter;

200-cleaning equipment; 210-a host; 211-sleeve; 212-a fan assembly; 213-a base; 214-a hand-held structure; 215-button.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. The invention will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

Example 1

In a first embodiment, as shown in fig. 1 to 4, the cyclone separation device 100 is provided with an inner cavity 101 and a sealed primary dust cavity 102, the primary dust cavity 102 is disposed around at least a portion of the inner cavity 101, the cyclone separation device 100 includes a primary separator 110, at least a portion of the primary separator 110 is disposed in the inner cavity 101, and a primary filtering structure is formed among the primary separator 110, the inner cavity 101 and the primary dust cavity 102, and the primary dust cavity 102 is used for collecting centrifugally separated dust, debris, hair and other wastes. The primary separator 110 includes a spiral section 120 and an exhaust section 130, the spiral section 120 is disposed in the inner cavity 101, and an axially distributed primary spiral flow channel 121 is formed between the spiral section 120 and a wall of the inner cavity 101, and the primary spiral flow channel 121 is capable of spirally guiding an airflow entering the inner cavity 101. One end of the exhaust section 130 is connected with the spiral section 120, the other end is connected with one end of the inner cavity 101, and the exhaust section 130 can be communicated with the inner cavity 101 and the external space so as to exhaust the air flow in the inner cavity 101 out of the inner cavity 101. Wherein, the wall of the inner cavity 101 is provided with a dust discharge port 111, the dust discharge port 111 is arranged corresponding to the air discharge section 130 and is communicated with the inner cavity 101 and the primary dust cavity 102, and then the garbage separated from the inner cavity 101 enters the primary dust cavity 102 through the dust discharge port 111.

The cyclone separation device 100 is characterized in that a primary separator 110 is arranged in an inner cavity 101, a primary spiral flow passage 121 is formed between a spiral section 120 of the primary separator 110 and a cavity wall of the inner cavity 101, and the primary spiral flow passage 121 is axially distributed. During operation, air flow enters the inner cavity 101, and under the flow guiding action of the primary spiral flow passage 121, the air flow moves along the axial direction to form a cyclone, after passing through the primary spiral flow passage 121, the air flow rotates circumferentially to separate air from dust, and the dust is subject to large centrifugal force, so that the dust moves forwards against the cavity wall of the inner cavity 101 and enters the primary dust cavity 102 from the dust discharge port 111, and the purified air flow is discharged from the air discharge section 130. Therefore, the primary spiral flow passage 121 adopts axial air intake to generate cyclone, and the airflow is not or less deflected in the axial direction, so that the flow loss is reduced, and the problem of larger flow loss caused by large deflection in the axial direction is solved.

In the present embodiment, an air intake passage 122 is provided in the spiral section 120, one end of the air intake passage 122 is used for air intake, and the air intake passage 122 is provided with a lateral outlet 123 and a guide portion 124. The lateral outlet 123 communicates with the intake passage 122 and the primary spiral flow passage 121, and the guide portion 124 serves to guide the air flow to the lateral outlet 123. The air flow enters from one end of the air inlet channel 122, is guided to the lateral outlet 123 under the guiding action of the guiding part 124, flows out from the lateral outlet 123 and enters the primary spiral flow channel 121, so that the central axial air inlet is realized, and the air flow is not or less deflected upwards at the central axis by the guiding part 124, so that the flow loss is further reduced. In other embodiments, the spiral section 120 may not be provided with the air inlet channel 122, and the air inlet end of the inner cavity 101 is directly connected to the primary spiral flow channel 121, and the air flow directly flows into the primary spiral flow channel 121 after entering the inner cavity 101 from the air inlet end.

Referring to fig. 5, fig. 5 shows an exploded view of the cyclone separating apparatus of the present embodiment, and the spiral section 120 includes an air inlet pipe 125, a spiral winding 126, and a side rail structure 127. The intake passage 122 is provided in the intake pipe 125. The spiral winding 126 is spirally disposed on the outer surface of the air inlet pipe 125, the lateral outlet 123 is disposed between two axially adjacent spiral segments 128 of the spiral winding 126, and the guiding portion 124 is spirally disposed and connected to one of the spiral segments 128. The side rail structure 127 connects two axially adjacent spiral segments 128, and encloses the beginning of the primary spiral flow path 121. Since the guiding portion 124 is spirally disposed and connected with a spiral segment 128, that is, the guiding portion 124 is spirally engaged with the spiral winding 126, the air flow entering the air inlet 122 can be directly guided to the primary spiral channel 121, so that the effect of reducing the flow loss is better. Moreover, the side guard structure 127 may prevent airflow from flowing away from one side of the side outlet 123.

Further, the exhaust section 130 includes an exhaust pipe 131 and a connection sleeve 132. An exhaust channel 133 is arranged in the exhaust pipe 131, an air inlet 134 is arranged on the pipe wall of the exhaust pipe 131, the air inlet 134 is communicated with the inner cavity 101 and the exhaust channel 133, and then air flow in the inner cavity 101 can enter the exhaust channel 133 through the air inlet 134 and be discharged to a space outside the inner cavity 101 through the air inlet channel 122. The adapter sleeve 132 is located the one end of blast pipe 131, and the one end of inner chamber 101 is connected to adapter sleeve 132, and adapter sleeve 132 is the setting that gradually increases in axial air current direction, and forms the interval space between exhaust passage 133 and secondary filter structure, makes things convenient for the air current to get into in the secondary filter structure.

In the present embodiment, the multiple rows of air intake holes 134 are spaced apart in the circumferential direction of the exhaust pipe 131, and each row of air intake holes 134 is axially spaced apart, and each row of air intake holes 134 includes at least three air intake circular holes, and an air intake hole section is formed on the exhaust pipe 131. The air flow can enter the exhaust channel 133 from the inner cavity 101 through the air inlet hole section, then flow is guided to the external space through the exhaust channel 133, and enters the secondary filtering structure. It should be noted that the positions, the number, the shape and the arrangement of the air intake holes 134 are not limited to those listed above, and may be set according to actual requirements, as long as the air flow in the inner cavity 101 can be exhausted. It is understood that in other embodiments, the air inlet holes 134 may be formed in the connecting sleeve 132 of the air exhaust section 130 without providing the air exhaust channel 133; or the air inlet 134 is provided at both the exhaust pipe 131 and the connection sleeve 132.

In this embodiment, the spiral section 120 and the exhaust section 130 are integrally formed, that is, the primary separator 110 is of an integral structure, so that the number of parts is reduced, and assembly is simplified. It should be noted that, in embodiments of the present invention, the spiral section 120 and the exhaust section 130 are detachably connected, so that the hair or other wires wound on the exhaust section 130 can be conveniently removed without cutting the windings with a cutter. Specifically, one end of the exhaust pipe 131 of the exhaust section 130 is inserted into one end of the intake pipe 125 of the screw section 120, and the two are tightly fitted to achieve the detachable connection. Or the end of the exhaust pipe 131 of the exhaust section 130 is connected with the end of the air inlet pipe 125 of the spiral section 120 by adopting internal and external screw threads, so as to realize detachable connection.

In this embodiment, the primary dust chamber 102 is gradually enlarged in the axial airflow direction, so that the volume of the primary dust chamber 102 in the axial airflow direction is gradually increased to accommodate more garbage, and the formed inclined surface is beneficial to the garbage entering the primary dust chamber 102 to move to a large volume space.

Further, the end of the primary dust chamber 102 remote from the spiral section 120 extends out of the inner chamber 101 to connect with the end of the exhaust section 130, such that the end of the inner chamber 101 is located within the primary dust chamber 102. The dust discharge port 111 on the wall of the inner cavity 101 is arranged near or connected with the connecting sleeve 132 of the exhaust section 130, and the centrifuged garbage can directly fall into the dust discharge port 111 under the action of the baffle of the connecting sleeve 132 and enter the primary dust cavity 102 under the action of cyclone. Moreover, the inclined surface of the connecting sleeve 132 can guide the garbage, and the garbage can slide along the surface of the garbage to fall into the dust discharge opening 111.

Referring to fig. 3 to 5, the cyclone device 100 further includes a central air inlet pipe 140 and a cover 150, the inner cavity 101 and the primary dust cavity 102 are both disposed in the central air inlet pipe 140, the central air inlet pipe 140 is further provided with an air inlet channel 142, one end of the air inlet channel 142 forms an air inlet 144 of the cyclone device 100, the other end of the air inlet channel 142 is communicated with the inner cavity 101, and the primary dust cavity 102 is disposed around most of the inner cavity 101. Wherein, one end of the air inlet pipe 125 of the spiral section 120 is in butt joint communication with the other end of the air inlet channel 142, and the air flow entering the air inlet channel 142 is introduced into the air inlet channel 122 of the air inlet pipe 125. The cover 150 is disposed at an end of the primary dust chamber 102 remote from the spiral section 120, and closes the primary dust chamber 102. In this embodiment, the secondary filter structure penetrates the cover member 150 and is connected to the connecting sleeve 132 of the exhaust section 130 to communicate with the exhaust channel 133. It will be appreciated that in other embodiments, the connection sleeve 132 of the exhaust section 130 and one end of the inner cavity 101 may extend through the cover 150 at the same time, and extend out of the cover 150 to connect to the secondary filter structure, but the dust exhaust 111 is located within the cover 150.

In this embodiment, the cyclone device 100 is further provided with a sealed secondary dust chamber 103, and the secondary dust chamber 103 is spaced from the primary dust chamber 102. The cyclone separation device 100 further includes a secondary separator 160, one end of the secondary separator 160 is connected to the other end of the exhaust section 130, and the other end of the secondary separator 160 penetrates through a cavity wall of the secondary dust cavity 103, so that a secondary filtering structure is formed between the secondary separator 160 and the secondary dust cavity 103, the secondary filtering structure is communicated with the primary filtering structure, secondary filtering is performed on the filtered airflow, and the secondary dust cavity 103 collects garbage generated by the secondary filtering.

Specifically, the secondary separator 160 includes a body 161 and a plurality of helical structures 162. A plurality of separation channels 163 are provided in the body 161 at intervals, each separation channel 163 communicating with the inner chamber 101 and the secondary dust chamber 103 via the exhaust section 130. Each spiral structure 162 is disposed in a separation channel 163, and forms an axially distributed secondary spiral channel 164 with the channel wall of the separation channel 163. Wherein, the other opposite chamber wall of the secondary dust chamber 103 is provided with an exhaust structure 104, and the exhaust structure 104 is used for exhausting the airflow passing through the secondary spiral flow channel 164.

The spiral structure 162 of the secondary separator 160 forms a secondary spiral flow channel 164 with the channel wall of the separation channel 163, and the secondary spiral flow channel 164 is axially distributed. During operation, the air flow enters the separation channel 163, and under the guiding action of the secondary spiral flow channel 164, the air flow moves along the axial direction in a spiral manner to form a cyclone, after passing through the secondary spiral flow channel 164, the air flow rotates circumferentially to separate air from dust, and the dust is subject to large centrifugal force, so that the dust can move forward closely to the channel wall of the separation channel 163 and enters the secondary dust cavity 103, and the purified air flow is discharged by the exhaust structure 104. Therefore, the secondary spiral flow channel 164 adopts the central axial air inlet to generate cyclone, the airflow is not folded or folded less in the axial direction, the flow loss of the airflow in secondary filtration is reduced, and the problem of larger flow loss caused by large folding in the axial direction is also solved.

One end of the secondary separator 160 is axially connected to the other end of the exhaust section 130, and the central axis of each separation channel 163 is parallel to the central axis of the inner chamber 101. In the present embodiment, the connection sleeve 132 of the exhaust section 130 is axially connected to the secondary separator 160, and the exhaust channels 133 of the exhaust section 130 communicate with all the separation channels 163, wherein the central axis of each separation channel 163 is parallel to the central axis of the exhaust channel 133. The air flow enters the concave space of the connecting sleeve 132 from the exhaust channel 133 and then is split into each separation channel 163, and in the process, the air flow can flow radially, and the connecting sleeve 132 takes the role of guiding and diffusing the air flow, so that the deflection of the air flow in the radial direction is smaller, and the flow loss before the air flow enters the separation channels 163 is reduced. It should be noted that, in other embodiments, in order to further reduce the flow loss before the air flows enter the separation channels 163, the air inlets 134 may be further formed on the connection sleeve 132, and the air flows through the air inlets 134 on the connection sleeve 132 and directly axially enter the separation channels 163, and meanwhile, the air flows in the air inlet channels 122 also axially enter the corresponding separation channels 163.

In the present embodiment, the wall of the secondary dust chamber 103 through which the secondary separator 160 penetrates is formed on the cover plate of the cover member 150, and the secondary separator 160 is positioned and mounted by the cover plate and the connecting sleeve 132.

Referring to fig. 6, fig. 6 shows a cross-sectional view of a secondary separator of a cyclone separator according to the present embodiment, the separation channel 163 includes a separation section 163a and an air outlet section 163b, the spiral structure 162 is disposed in the separation section 163a, and the air outlet section 163b is respectively connected to the separation section 163a and the secondary dust chamber 103 and is used for axially discharging the air flow passing through the separation section 163a, thereby improving the air discharge effect and the dust separation efficiency.

Further, the separation channel 163 further includes an air inlet section 163c, wherein one end of the air inlet section 163c is communicated with the inner cavity 101 through the air outlet section 130, and the other end is communicated with the separation section 163a. The air intake section 163c serves to axially input an air flow while axially introducing the air flow into the secondary spiral flow passage 164, i.e., without loss of flow of the air flow occurring in the separation passage 163.

In this embodiment, helical structure 162 includes inner core 165 and helical blade 166. Spiral vane 166 is spirally disposed on the outer surface of inner core 165 and connects the channel walls of separation channel 163 to form secondary spiral flow channel 164. The spiral structure 162 has a simple structure, a secondary spiral flow channel 164 is formed between the spiral blade 166 and the channel wall of the separation channel 163, and after the airflow enters the separation channel 163, the airflow directly axially flows into the secondary spiral flow channel 164, so that central axial air intake is realized, and cyclone is generated. Wherein inner core 165 includes a connected separation portion 167 and drainage portion 168, and helical blade 166 is disposed on an outer surface of separation portion 167.

Further, the separation portion 167 is gradually enlarged in the axial airflow direction, so that the space between the separation portion 167 and the channel wall of the separation channel 163 is gradually reduced, that is, the secondary spiral flow channel 164 is axially gradually reduced, which is beneficial to enhancing the cyclone effect and producing better dust-gas separation effect.

Further, the flow guiding portion 168 is arranged to be gradually smaller in the axial air flow direction, and the air flow is guided to flow along the flow guiding portion 168 to better flow out of the separation channel 163.

In this embodiment, the exhaust structure 104 includes a plurality of exhaust ducts 105 spaced apart, each exhaust duct 105 extending into a separation channel 163, near an end of the drainage portion 168, and spaced apart from a channel wall of the separation channel 163. An exhaust through hole 106 is provided in each exhaust duct 105, and the exhaust through hole 106 communicates with the separation passage 163 and the space outside the secondary dust chamber 103. Since the end of the drainage portion 168 is disposed near the exhaust conduit 105, the air flow is easily axially directed into the exhaust through-hole 106 and toward the tertiary filter structure by the drainage of the drainage portion 168. Furthermore, a space is formed between the exhaust duct 105 and the channel wall of the separation channel 163, and dust or the like can pass through the space along the channel wall by centrifugal force and enter the secondary dust chamber 103. In other embodiments, the exhaust structure 104 may be only a plurality of through holes formed in the wall of the secondary dust chamber 103.

To reduce the resistance to air flow through the helical structure 162, the end of the separating portion 167 remote from the flow guiding portion 168 is rounded to form a rounded head which is circular in axial cross-section. The drainage portion 168 is generally bullet-shaped in a parabolic shape in axial cross-section.

In the present embodiment, the secondary separator 160 is an integrally formed structure, that is, the main body 161 of the secondary separator 160 and the plurality of spiral structures 162 therein are integrally formed, so that the number of parts is reduced and the assembly is simplified. It will be appreciated that in other embodiments, the body 161 of the secondary separator 160 and the plurality of helical structures 162 therein are split structures, i.e., the helical blades 166 of each helical structure 162 may be mounted within the separation channel 163 by a tight fit or snap fit structure.

In this embodiment, the cyclone separating apparatus 100 further includes a cavity member 170, the cover member 150 covers the cavity member 170 to form the secondary dust chamber 103, and the exhaust structure 104 is formed on a sidewall of the cavity member 170, which is a part of the structure of the cavity member 170 that is integrally formed.

In order to achieve three-stage filtration to improve the filtering effect, the cyclone separation device 100 further includes a filter 180, where the filter 180 is disposed corresponding to the exhaust structure 104, and is used to filter the gas output from the exhaust structure 104. The filter 180 forms a three stage filter structure.

In this embodiment, a mounting ring 172 is further disposed on a side of the side wall of the cavity member 170 facing away from the exhaust structure 104, and a filter member 180 is mounted in the mounting ring 172 through a sealing ring (not numbered) to communicate with the exhaust structure 104. The filter 180 may be, but is not limited to, filter cotton or a hepa.

Referring to fig. 7, fig. 7 is a cross-sectional view of a second embodiment of a cyclone separating apparatus provided in example 1 of the present invention, and the cyclone separating apparatus 100 of the present embodiment differs from the cyclone separating apparatus 100 of the first embodiment as follows:

In the cyclone device 100 of the present embodiment, the spiral section 120 and the exhaust section 130 of the primary separator 110 are disposed in a separated manner, that is, the spiral section 120 and the exhaust section 130 are discontinuous and disconnected, so that the hair or other threads wound on the exhaust section 130 can be conveniently removed without cutting the windings with a cutter.

Specifically, the end of the spiral section 120 close to the exhaust section 130 is closed, the air inlet end of the air inlet pipe 125 of the spiral section 120 is tightly matched with the air inlet flow channel 142, the spiral winding 126 of the spiral section 120 is tightly matched with the cavity wall of the inner cavity 101, and the spiral section 120 is fixed in the inner cavity. The exhaust section 130 is closed at one end near the spiral section 120, and the connecting sleeve 132 of the exhaust section 13 is fixedly connected with one end of the inner cavity 101, so that the exhaust section 13 is fixed in the inner cavity 101.

As for other aspects of the cyclone separating apparatus 100 of the present embodiment, which are substantially the same as those of the cyclone separating apparatus 100 of the first embodiment, reference is made to the description of the foregoing embodiment for details, and details thereof are not repeated herein.

Referring to fig. 8, fig. 8 is a cross-sectional view of a third embodiment of a cyclone separating apparatus provided in example 1 of the present invention, and the cyclone separating apparatus 100 of the present embodiment differs from the cyclone separating apparatus 100 of the first embodiment as follows:

In the cyclone separator 100 of the present embodiment, the first-stage separator 110 is not provided with the exhaust section 130, that is, the first-stage separator 110 is only provided with the spiral section 120, and the airflow can directly enter the second-stage separator 160 after passing through the spiral section 120. Because the exhaust section 130 is not needed, after the primary gas-dust separation is performed through the primary spiral flow passage 121, the air flow directly axially enters the secondary spiral flow passage 163 of the secondary separator 160 to perform the secondary gas-dust separation, that is, almost no flow loss of the air flow exists between the primary separator 110 and the secondary separator 160, the resistance of the air flow is reduced, the working power of a fan assembly generating the air flow can be reduced, the flow speed of the air flow is improved, and the separation efficiency is improved.

In this embodiment, one end of the secondary separator 160 is hermetically connected to one end of the inner chamber 101, and a separation passage 163 is provided to communicate the inner chamber 101 and the secondary separator 160. It should be noted that, in other embodiments, one end of the secondary separator 160 may extend into the inner cavity 101, and be sealed with one end of the inner cavity 101 by other structures of the secondary separator 160; alternatively, one end of the secondary separator 160 may extend into the inner cavity 101, and one end of the inner cavity 101 is connected to the secondary dust cavity 103, that is, the inner cavity 101 replaces the primary dust cavity 102 to have the function of collecting dust. Specifically, the central air inlet pipe 140 is provided with only the inner cavity 101, one end of the inner cavity 101 is connected to the cover member 150, and one end of the secondary separator 160 is located in the inner cavity 101, and at this time, the central air inlet pipe 140 does not need to be provided with the primary dust cavity 102.

In summary, in the present application, the cyclone separating apparatus 100 has an inner chamber 101 and includes a primary separator 110. The primary separator 110 includes a spiral section 120, the spiral section 120 being disposed in the inner cavity 101 and forming an axially distributed primary spiral flow channel 121 with a wall of the inner cavity 101, the primary spiral flow channel 121 being capable of spirally guiding an air flow entering the inner cavity 101. The spiral section 120 includes an air inlet pipe 125 and a spiral winding 126, the air inlet pipe 125 being provided with an air inlet channel 122, a lateral outlet 123 and a guide 124. One end of the intake passage 122 is used for intake air, the lateral outlet 123 communicates with the intake passage 122 and the primary spiral flow passage 121, and the guide portion 124 is provided in the intake passage 122 and is used for guiding the air flow in the intake passage 122 to the lateral outlet 123.

The cyclone separation device 100 is characterized in that a primary separator 110 is arranged in an inner cavity 101, a primary spiral flow passage 121 is formed between a spiral section 120 of the primary separator 110 and a cavity wall of the inner cavity 101, and the primary spiral flow passage 121 is axially distributed. During operation, the air flow sequentially passes through the air inlet channel 122, the guide part 124 and the lateral outlet 123, and enters the primary spiral flow channel 121, the air flow moves along the axial direction in a spiral manner to form a cyclone, after passing through the primary spiral flow channel 121, the air flow rotates circumferentially to separate air from dust, and the dust is tightly attached to the cavity wall of the inner cavity 101 to move forwards and be collected due to the large centrifugal force. Therefore, the primary spiral flow passage 121 adopts axial air intake to generate cyclone, and the airflow is not or less deflected in the axial direction, so that the flow loss is reduced, and the problem of larger flow loss caused by large deflection in the axial direction is solved.

Example 2

This embodiment provides a cleaning apparatus, as shown in figures 6 and 7, in one embodiment the cleaning apparatus 200 comprises a cyclonic separating apparatus 100 and a main machine 210, the cyclonic separating apparatus 100 being provided in front of the main machine 210. The specific structure of the cyclone separating apparatus 100 refers to the above embodiment 1, and since the cleaning device 200 of this embodiment adopts all the technical solutions of the above embodiment 1, all the beneficial effects brought by the technical solutions of the above embodiment 1 are also provided, and will not be described in detail herein. In other embodiments, the cyclone separating apparatus 100 may be disposed above and below the main machine 210 or left and right depending on the type of the cleaning apparatus 200.

Referring to fig. 3 to 5, in the present embodiment, the host 210 includes a sleeve 211 and a fan assembly 212, the fan assembly 212 is disposed in the sleeve 211, and an air inlet of the fan assembly 212 is communicated with a socket space of the sleeve 211. One end of the sleeve 211 is sleeved on the cavity member 170 of the cyclone separating apparatus 100, and is connected with the cover member 150. The central air inlet pipe 140 of the cyclone separation device 100 is further provided with a sleeving part 146, the sleeving part 146 is connected with the cavity wall of the primary dust cavity 102, the sleeving part 146 is detachably sleeved on the sleeve 211 through a fastening structure, and the cyclone separation device 100 is detachably arranged on the host 210. When the cleaning device 200 cleans garbage, the central air inlet pipe 140 is detached from the sleeve 211 of the main machine 210, and the primary dust cavity 102 is opened; the cover 150 and its upper secondary separator 160 are then removed, and the secondary dust chamber 103 is opened.

In this embodiment, the main unit 210 further includes a base 213 and a holding structure 214, and the holding structure 214 is connected between the base 213 and the sleeve 211 for a user to hold the cleaning apparatus 200. The hand-held structure 214 is provided with a button 215, and a user can control the cleaning device 200 through the button 215 while holding the operation. The base 213 has a plurality of rechargeable batteries therein to provide power for the operation of the cleaning device 200.

In this embodiment, the cleaning apparatus 200 may be, but is not limited to, a hand-held cleaner. It will be appreciated that in other embodiments, the cleaning apparatus 200 may also be a hand-held sweeping device, a sweeping robot, or other cleaning apparatus having cyclonic separating apparatus 100.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. Based on the embodiments of the present invention, those skilled in the art may make other different changes or modifications without making any creative effort, which shall fall within the protection scope of the present invention.

Claims

1. The cyclone separation device is characterized in that the cyclone separation device (100) is provided with an inner cavity (101), a dust discharge port (111) is formed in the side wall of the inner cavity (101), and the cyclone separation device (100) comprises a primary separator (110);

The primary separator (110) comprises a spiral section (120), wherein the spiral section (120) is arranged in the inner cavity (101) and forms a primary spiral flow passage (121) which is axially distributed with the cavity wall of the inner cavity (101);

Wherein the spiral section (120) comprises an air inlet pipe (125) and a spiral winding (126), and the spiral winding (126) is spirally arranged on the outer surface of the air inlet pipe (125); the air inlet pipe (125) is provided with an air inlet channel (122), a lateral outlet (123) and a guide part (124), one end of the air inlet channel (122) is used for air inlet, the guide part (124) is arranged in the air inlet channel (122) and used for guiding air flow in the air inlet channel (122) to the lateral outlet (123), and the lateral outlet (123) is communicated with the air inlet channel (122) and the primary spiral flow channel (121).

2. Cyclonic separating apparatus as claimed in claim 1, wherein the cyclonic separating apparatus (100) is further provided with a closed primary dust chamber (102), the primary dust chamber (102) surrounding at least part of the inner chamber (101);

The primary separator (110) further comprises an exhaust section (130), one end of the exhaust section (130) is connected with the spiral section (120), the other end of the exhaust section is connected with one end of the inner cavity (101), the exhaust section (130) is located in the inner cavity (101), and the exhaust section (130) is used for communicating the inner cavity (101) with an external space;

the dust exhaust port (111) is arranged corresponding to the exhaust section (130) and is communicated with the inner cavity (101) and the primary dust cavity (102).

3. Cyclonic separating apparatus as claimed in claim 2, wherein the cyclonic separating apparatus (100) is further provided with a closed secondary dust chamber (103), the secondary dust chamber (103) being spaced from the primary dust chamber (102);

The cyclone separation device (100) further comprises a secondary separator (160), one end of the secondary separator (160) is connected with the other end of the exhaust section (130), the other end of the secondary separator (160) penetrates through a cavity wall of the secondary dust cavity (103), and the secondary separator (160) comprises:

A main body (161), wherein a plurality of separation channels (163) are arranged in the main body (161), and each separation channel (163) is communicated with the inner cavity (101) and the secondary dust cavity (103) through the exhaust section (130); and

A plurality of spiral structures (162), wherein each spiral structure (162) is arranged in one separation channel (163) and forms a secondary spiral flow channel (164) which is axially distributed between the spiral structure and the channel wall of the separation channel (163);

Wherein, the other opposite cavity wall of the secondary dust cavity (103) is provided with an exhaust structure (104), and the exhaust structure (104) is used for exhausting the airflow passing through the secondary spiral flow channel (164).

4. Cyclonic separating apparatus as claimed in claim 1, wherein the cyclonic separating apparatus (100) is further provided with a closed secondary dust chamber (103), the secondary dust chamber (103) being spaced from the inner chamber (101);

The cyclone separation device (100) further comprises a secondary separator (160), one end of the secondary separator (160) is arranged corresponding to the inner cavity (101), the other end of the secondary separator (160) penetrates through a cavity wall of the secondary dust cavity (103), and the secondary separator (160) comprises:

-a main body (161), a plurality of separation channels (163) being arranged at intervals in the main body (161), each separation channel (163) communicating the inner cavity (101) with the secondary dust cavity (103); and

5. Cyclone device according to claim 3 or 4, wherein the separation channel (163) comprises a separation section (163 a) and an air outlet section (163 b), the spiral structure (162) being provided in the separation section (163 a), the air outlet section (163 b) being in communication with the separation section (163 a) and the secondary dust chamber (103), respectively, and being adapted to axially discharge the air flow after passing through the separation section (163 a).

6. Cyclonic separating apparatus as claimed in claim 5, wherein the separation passage (163) further comprises an inlet section (163 c), the inlet section (163 c) being in communication with the inner chamber (101) and the separation section (163 a), respectively, and being adapted to axially input an airflow.

7. Cyclonic separating apparatus as claimed in claim 3 or 4, wherein,

The spiral structure (162) comprises an inner core (165) and a spiral blade (166), wherein the spiral blade (166) is spirally arranged on the outer surface of the inner core (165) and is connected with a channel wall of the separation channel (163) to form the secondary spiral flow channel (164);

the inner core (165) comprises a separation portion (167) and a drainage portion (168) which are axially connected, the helical blades (166) are arranged on the outer surface of the separation portion (167), and the drainage portion (168) is gradually arranged in the axial airflow direction.

8. Cyclonic separating apparatus as claimed in claim 7, wherein the separating portion (167) is arranged to taper in the axial airflow direction.

9. Cyclonic separating apparatus as claimed in claim 7,

The exhaust structure (104) comprises a plurality of exhaust ducts (105) at intervals, each exhaust duct (105) extending into one of the separation channels (163), being arranged close to the end of the drainage portion (168) and spaced apart from the channel walls of the separation channel (163);

an exhaust through hole (106) is arranged in each exhaust conduit (105), and the exhaust through holes (106) are communicated with the separation channel (163) and the space outside the secondary dust cavity (103).

10. Cyclonic separating apparatus as claimed in claim 3 or 4, wherein the secondary separator (160) is of unitary construction.

11. Cyclonic separating apparatus as claimed in claim 2 or 3,

The spiral section (120) is detachably connected with the exhaust section (130); or alternatively

The spiral section (120) is arranged in a blocking manner from the exhaust section (130).

12. A cyclonic separating apparatus as claimed in claim 2 or 3, wherein the primary dust chamber (102) is arranged to taper in the axial airflow direction.

13. A cyclonic separating apparatus as claimed in claim 2 or 3, wherein the exhaust section (130) comprises:

The exhaust pipe (131) is internally provided with an exhaust channel (133), the pipe wall of the exhaust pipe (131) is provided with an air inlet hole (134), and the air inlet hole (134) is communicated with the inner cavity (101) and the exhaust channel (133);

the connecting sleeve (132), the connecting sleeve (132) is located one end of blast pipe (131), the connecting sleeve (132) is connected one end of inner chamber (101), the diameter of connecting sleeve (132) is the progressively setting in axial air current direction.

14. Cyclonic separating apparatus as claimed in any one of claims 1 to 4,

The lateral outlet (123) is arranged between two axially adjacent spiral segments (128) of the spiral winding (126), and the guide part (124) is spirally arranged and is connected with one spiral segment (128);

The spiral section (120) further comprises a side-blocking structure (127), wherein the side-blocking structure (127) is connected with two axially adjacent spiral sections (128) and surrounds to form the starting end of the primary spiral flow channel (121).

15. A cleaning apparatus, comprising:

a host (210); and

Cyclone separation device (100), the cyclone separation device (100) being arranged on the host machine (210), the cyclone separation device (100) being a cyclone separation device (100) according to any one of claims 1 to 14.