Cyclone structure, cyclone separation device and vacuum cleaner

Abstract

The present invention relates to a cyclone structure, a cyclone separation device and a dust collector, wherein the cyclone structure comprises: a cyclone shell; a barrier assembly, which is arranged around the outer periphery of the cyclone shell and separates the cyclone shell into a cyclone section and a dust collecting section; wherein the barrier assembly forms a dust collecting channel and an exhaust channel which are independent of each other. In the above-mentioned cyclone structure, the setting of the exhaust channel enables the airflow flowing into the dust collecting space through the dust collecting channel to flow out quickly through the exhaust channel without penetrating into the end of the dust collecting space away from the cyclone space, thereby effectively preventing the occurrence of the mixing phenomenon and improving the dust separation effect. Moreover, the setting of the exhaust channel can prevent the airflow in the dust collecting space from flowing out of the dust collecting channel and converging with the airflow flowing into the dust collecting channel to cause airflow turbulence, thereby improving the dust separation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of cleaning equipment, and in particular to a cyclone structure, a cyclone separation device and a dust collector. Background Art

[0002] With the development of society and the advancement of science and technology, people's requirements for living environment are also increasing. Vacuum cleaners, as a cleaning device that can collect dust and small garbage, have brought great convenience to home cleaning, and therefore have been increasingly widely used in daily life.

[0003] In current vacuum cleaners, cyclone-type separation devices have replaced dust bag-type separation devices for separating dust. Specifically, the dust-carrying airflow sucked into the vacuum cleaner flows in the cyclone-type separation device, and the dust is deposited downward into the dust collecting chamber of the cyclone-type separation device under the action of gravity and centrifugal force, while the clean airflow without dust flows out of the cyclone-type separation device and finally returns to the external environment.

[0004] However, in the current cyclone separation device, part of the airflow will also enter the dust collecting chamber along with the dust. When this part of the airflow flows out of the dust collecting chamber, it will bring up the dust that has been deposited at the bottom of the dust collecting chamber and cause a mixing phenomenon. Moreover, the airflow flowing out of the dust collecting chamber and the dust entering the dust collecting chamber have different flow directions, so the convergence of the two will cause airflow turbulence, thereby affecting the dust separation effect, reducing the dust separation efficiency, and further affecting the user experience of the vacuum cleaner, bringing inconvenience to people's lives. Summary of the invention

[0005] Based on this, it is necessary to provide a cyclone structure, cyclone separation device and vacuum cleaner that can optimize the dust separation effect and improve the separation efficiency in order to address the problems of poor dust separation effect and low separation efficiency in the cyclone separation device.

[0006] A cyclone structure, comprising:

[0007] cyclone casing; and

[0008] A barrier assembly is arranged around the outer periphery of the cyclone housing to separate the cyclone housing into a cyclone section and a dust collecting section;

[0009] Wherein, the barrier component forms a dust collecting channel and an exhaust channel which are independent of each other, the dust collecting channel allows the airflow flowing along the cyclone section to flow to the dust collecting section, and the exhaust channel allows the airflow flowing along the dust collecting section to flow to the cyclone section.

[0010] In the above-mentioned cyclone structure, the setting of the exhaust channel enables the airflow flowing into the dust collecting space through the dust collecting channel to flow out quickly through the exhaust channel without penetrating into the end of the dust collecting space far away from the cyclone space, thereby effectively preventing the occurrence of mixing and returning, and improving the dust separation effect. Moreover, the setting of the exhaust channel can prevent the airflow in the dust collecting space from flowing out of the dust collecting channel and converging with the airflow flowing into the dust collecting channel to cause airflow turbulence, thereby improving the dust separation efficiency.

[0011] In one embodiment, the barrier assembly is circumferentially arranged around the cyclone housing to form a head end and a tail end separated from each other, and the dust collecting channel is formed between the head end and the tail end;

[0012] An exhaust through hole forming the exhaust channel is provided on the barrier component, and the exhaust through hole extends from the side of the barrier component facing the cyclone section to the side of the barrier component facing the dust collecting section.

[0013] In one embodiment, the barrier assembly includes a barrier section and a guide section connected to one end of the barrier section, the barrier section is arranged around the outer circumference of the cyclone shell along the same circle, the end of the barrier section away from the guide section forms the head end, the guide section extends obliquely from the barrier section in a direction away from the dust collecting section, the end of the guide section away from the barrier section forms the tail end, and the exhaust hole is opened in the barrier section.

[0014] In one of the embodiments, the barrier component is provided with a plurality of exhaust holes, and the plurality of exhaust holes are arranged at intervals along the circumference of the cyclone housing.

[0015] In one of the embodiments, a size of the exhaust through hole in the circumferential direction of the cyclone housing gradually increases from a side close to the cyclone housing to a side away from the cyclone housing.

[0016] In one embodiment, the barrier assembly includes a barrier member and a resisting member, wherein the barrier member is disposed around the outer periphery of the cyclone housing, and the resisting member is coated on an edge of a side of the barrier member away from the cyclone housing;

[0017] The hardness of the blocking member is greater than that of the resisting member, and the resisting member can undergo a recoverable deformation under the action of an external force.

[0018] In one embodiment, the exhaust passage is formed in the blocking member.

[0019] A cyclone separation device comprises the above-mentioned cyclone structure.

[0020] In one embodiment, the cyclone separation device also includes a dust cup, the dust cup is provided with a dust cup cavity connected to the external environment, the cyclone structure is accommodated in the dust cup cavity, the cyclone section of the cyclone shell and the cavity wall of the dust cup cavity jointly define a cyclone space, the dust collecting section of the cyclone shell and the cavity wall of the dust cup cavity jointly define a dust collecting space, and the cyclone space and the dust collecting space are respectively connected through the dust collecting channel and the exhaust channel.

[0021] In one of the embodiments, the outer edge of the barrier component of the cyclone structure abuts against the cavity wall of the dust cup cavity.

[0022] A vacuum cleaner comprises the above-mentioned cyclone structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A front view of a cyclone separation device according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 An exploded view of the cyclone separation device shown;

[0025] Figure 3 Schematic diagram of the structure of a cyclone structure according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] like Figure 1As shown, a vacuum cleaner (not shown) according to an embodiment of the present invention is used to clean dust and garbage in the environment. The vacuum cleaner includes a main body, a motor, blades and a cyclone separation device 100 installed on the main body. The motor drives the blades to rotate so as to generate negative pressure in the cyclone separation device 100. The gas with dust in the external environment is sucked into the cyclone separation device 100 under the action of negative pressure. The dust in the airflow is retained in the cyclone separation device 100 under the action of centrifugal force and gravity. The clean airflow after the dust is separated flows out of the cyclone separation device 100 and finally returns to the external environment.

[0030] like Figure 1 and Figure 2 As shown, the cyclone separation device 100 includes a dust cup 20, a cyclone structure 40, an air inlet duct 60 and a filter 80. The dust cup 20 is in the shape of a hollow cylinder, and a dust cup cavity with an open end is formed therein. The cyclone structure 40 is generally cylindrical, and a cyclone cavity is formed therein. A first air outlet 412 and an air inlet 416 respectively connected to the cyclone cavity are provided at one end of the cyclone structure 40, and the central axes of the first air outlet 412 and the air inlet 416 extend along the radial direction of the cyclone cavity respectively; a second air outlet 414 connected to the cyclone cavity is provided at the other end of the cyclone structure 40, and the central axis of the second air outlet 414 coincides with the central axis of the cyclone cavity. The air inlet duct 60 is in the shape of a hollow tubular structure, forming an air inlet channel with an air inlet end and an air outlet end. The filter 80 is a filter screen with a plurality of filter holes spaced apart.

[0031] The cyclone structure 40 is accommodated in the dust cup cavity of the dust cup 20. The cyclone structure 40 is provided with a second air outlet 414 at one end to block the open end of the dust cup 20. The first air outlet 412 and the air inlet 416 of the cyclone structure 40 are respectively connected to the dust cup cavity. One end of the air inlet duct 60 is inserted into the cyclone cavity of the cyclone structure 40 from the second air outlet 414 of the cyclone structure 40. The air outlet end of the air inlet duct 60 is connected to the first air outlet 412 of the cyclone structure 40. The filter 80 is provided at the air inlet 416 of the cyclone structure 40.

[0032] In this way, the airflow with dust in the external environment flows into the air intake duct 60 from the air intake end of the air intake duct 60, and then passes through the air intake channel, the air outlet of the air intake duct 60 and the first air outlet 412 of the cyclone structure 40 in sequence, and finally enters the dust cup cavity along the tangential direction of the dust cup cavity. The airflow entering the dust cup cavity flows along the cavity wall of the dust cup cavity, and the dust in the airflow is deposited at the bottom of the dust cup cavity under the action of centrifugal force and gravity, while the clean airflow enters the cyclone cavity of the cyclone structure 40 through the filter element 80, and finally flows out through the second air outlet 414 of the cyclone structure 40.

[0033] See also Figure 1 and Figure 3In the embodiment of the present application, the cyclone structure 40 includes a cyclone housing 41 and a barrier component 43 .

[0034] Specifically, the cyclone shell 41 is a hollow rotating body structure to form a cyclone chamber, the first air outlet 412 and the air inlet 416 are respectively opened on the side wall of one end of the cyclone shell 41, and the second air outlet 414 is opened at the end of the cyclone shell 41 where the first air outlet 412 and the air inlet 416 are not opened.

[0035] The barrier assembly 43 is disposed around the outer periphery of the cyclone housing 41, and divides the cyclone housing 41 into a cyclone section having a first air outlet 412 and an air inlet 416 and a dust collecting section having a second air outlet 414. The cyclone section of the cyclone housing 41 and the cavity wall of the dust cup cavity together define a cyclone space 21, and the dust collecting section of the cyclone housing 41 and the cavity wall of the dust cup cavity together define a dust collecting space 23. The barrier assembly 43 is formed with a mutually independent dust collecting channel 436 and an exhaust channel 4321. The dust collecting channel 436 allows the airflow flowing along the cyclone section in the cyclone space 21 to flow to the dust collecting section and enter the dust collecting space 23, and the exhaust channel 4321 allows the airflow flowing along the dust collecting section in the dust collecting space 23 to flow to the cyclone section and return to the cyclone space 21.

[0036] In this way, the barrier component 43 separates the dust cup cavity of the dust cup 20 into a cyclone space 21 and a dust collecting space 23. The cyclone space 21 and the dust collecting space 23 are interconnected through the dust collecting channel 436 and the exhaust channel 4321. The dust in the cyclone space 21 enters the dust collecting space 23 through the dust collecting channel 436 and is deposited in the dust collecting space 23. The airflow that enters the dust collecting space 23 together with the dust returns to the cyclone space 21 through the exhaust channel 4321.

[0037] Therefore, the setting of the exhaust channel 4321 allows the airflow flowing into the dust collecting space 23 through the dust collecting channel 436 to flow out quickly through the exhaust channel 4321, and will not penetrate into the end of the dust collecting space 23 away from the cyclone space 21, thereby effectively preventing the occurrence of the mixing phenomenon and improving the dust separation effect. In addition, the setting of the exhaust channel 4321 can prevent the airflow in the dust collecting space 23 from flowing out of the dust collecting channel 436 and converging with the airflow flowing into the dust collecting channel 436 to cause airflow turbulence, thereby improving the dust separation efficiency.

[0038] In some embodiments, the barrier component 43 includes a barrier section and a guide section. The barrier section is cylindrical and is arranged around the outer circumference of the cyclone housing 41 along the same circumference. The end of the barrier section away from the guide section forms a head end. An exhaust through hole forming an exhaust channel 4321 is opened on the barrier section. The exhaust through hole extends from the barrier component 43 toward the cyclone section to the barrier component 43 toward the dust collecting section and penetrates the barrier component 43. The guide section extends obliquely from one end of the barrier section toward the direction of the cyclone section away from the cyclone housing 41. The end of the guide section away from the barrier section forms a tail end separated from the head end, and a dust collecting channel 436 that allows airflow and dust to pass through is formed between the head end and the tail end.

[0039] In this way, when the airflow with dust passes through the dust collecting channel 436, the dust enters the dust collecting space 23 under the guidance of the inclined guide section, and finally settles in the dust collecting space 23. At the same time, the airflow entering the dust collecting space 23 under the guidance of the guide section quickly flows out through the exhaust holes on the blocking section due to the negative pressure, and will not flow to the end of the dust collecting space 23 away from the cyclone space 21 to stir the deposited dust, nor will it converge with the airflow in different directions entering the dust collecting space 23 through the dust collecting channel 436 to cause airflow turbulence.

[0040] In some embodiments, the barrier assembly 43 includes a barrier member 432 and a resisting member 434 detachably mounted on the barrier member 432. Specifically, the barrier member 432 is disposed around the outer periphery of the cyclone housing 41, the resisting member 434 is wrapped around the outer edge of the barrier member 432, and the hardness of the barrier member 432 is greater than the hardness of the resisting member 434, and the resisting member 434 can undergo a recoverable deformation under the action of an external force. Specifically in one embodiment, the barrier member 432 is integrally formed with the cyclone housing 41, and the resisting member 434 is formed of a rubber material. It can be understood that the material forming the resisting member 434 is not limited thereto, and in some embodiments, the resisting member 434 can also be formed of other materials.

[0041] In this way, the barrier component 43 is firmly fixed to the cyclone shell 41 through the barrier member 432, and the outer edge of the supporting member 434 is supported against the cavity wall of the dust cup cavity, and is deformed to a certain extent under the action of the cavity wall of the dust cup cavity and is in close contact with the cavity wall of the dust cup cavity, thereby preventing dust from leaking out from the gap between the barrier component 43 and the dust cup 20.

[0042] Specifically, the blocking member 432 includes a fixing portion and a connecting portion, the fixing portion surrounds the outer periphery of the cyclone housing 41 and is fixedly connected to the outer periphery of the cyclone housing 41, the connecting portion is circumferentially connected to the outer edge of the fixing portion, and the thickness of the connecting portion is less than the thickness of the fixing portion to facilitate the installation of the abutting member 434. The abutting member 434 includes a plug-in portion and an abutting portion, the plug-in portion is provided with a plug-in groove matching the connecting portion to be clamped on the connecting portion, and the thickness of the abutting portion is less than the thickness of the plug-in portion to closely fit the cavity wall of the dust cup cavity.

[0043] A plurality of exhaust holes are provided on the barrier 432, and the plurality of exhaust holes are arranged at intervals along the circumference of the cyclone housing 41. In this way, the airflow entering the dust collecting space 23 can flow out through the plurality of exhaust holes without affecting the structural strength of the barrier assembly 43. In some embodiments, there are six exhaust holes, and the cross-section of each exhaust hole is roughly an isosceles trapezoid, and the size of the exhaust hole in the circumferential direction of the cyclone housing 41 gradually increases from the side close to the cyclone housing 41 to the side away from the cyclone housing 41. It can be understood that the shape and number of the exhaust holes are not limited thereto. In other embodiments, the shape of the exhaust holes can be set to a quadrilateral or other shapes as required.

[0044] The above-mentioned cyclone structure 40, cyclone separation device 100 and vacuum cleaner, by opening an exhaust channel 4321 on the barrier component 43, on the one hand solves the problem that the airflow flowing out of the dust collecting space 23 converges with the dust and airflow entering the dust collecting space 23 to affect the separation effect; on the other hand, it solves the problem of mixing of deposited dust in the dust collecting space 23, thereby effectively improving the dust separation efficiency, and then improving the use effect of the vacuum cleaner, bringing convenience to people's lives.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cyclone structure (40), characterized in that: The cyclone structure (40) comprises: a cyclone casing (41); and A barrier component (43) is arranged around the outer periphery of the cyclone shell (41) to separate the cyclone shell (41) into a cyclone section and a dust collection section; The barrier component (43) is circumferentially arranged around the cyclone housing (41) to form a head end and a tail end that are separated from each other. The barrier component (43) comprises a barrier section and a guide section connected to one end of the barrier section. The barrier section is arranged around the outer periphery of the cyclone housing (41) along the same circumference. The end of the barrier section away from the guide section forms the head end. The guide section extends obliquely from the barrier section in a direction away from the dust collecting section. The end of the guide section away from the barrier section forms the tail end. A dust collecting channel (436) is formed between the head end and the tail end, and an exhaust through hole forming an exhaust channel (4321) is provided on the barrier component (43), and the exhaust through hole extends from the barrier component (43) toward the cyclone section to the barrier component (43) toward the dust collecting section. The dust collecting channel (436) allows the airflow flowing along the cyclone section to flow to the dust collecting section, and the exhaust channel (4321) allows the airflow flowing along the dust collecting section to flow to the cyclone section.

2. The cyclone structure (40) according to claim 1, characterized in that: The exhaust through hole is arranged in the blocking section.

3. The cyclone structure (40) according to claim 1, characterized in that: The barrier component (43) is provided with a plurality of exhaust through holes, and the plurality of exhaust through holes are arranged at intervals along the circumference of the cyclone housing (41).

4. The cyclone structure (40) according to claim 3, characterized in that: The size of the exhaust through hole in the circumferential direction of the cyclone housing (41) gradually increases from a side close to the cyclone housing (41) to a side away from the cyclone housing (41).

5. The cyclone structure (40) according to claim 1, characterized in that: The blocking component (43) comprises a blocking member (432) and a resisting member (434); the blocking member (432) is disposed around the outer periphery of the cyclone housing (41); and the resisting member (434) covers an edge of a side of the blocking member (432) away from the cyclone housing (41); The hardness of the blocking member (432) is greater than the hardness of the resisting member (434), and the resisting member (434) can undergo a recoverable deformation under the action of an external force.

6. The cyclone structure (40) according to claim 5, characterized in that: The exhaust passage (4321) is formed on the barrier (432).

7. A cyclone separation device, characterized in that: Comprising the cyclone structure (40) according to any one of claims 1 to 6.

8. The cyclone separation device according to claim 7, characterized in that: The cyclone separation device also includes a dust cup (20), the dust cup (20) is provided with a dust cup cavity connected to the external environment, the cyclone structure (40) is accommodated in the dust cup cavity, the cyclone section of the cyclone shell (41) and the cavity wall of the dust cup cavity jointly define a cyclone space (21), the dust collecting section of the cyclone shell (41) and the cavity wall of the dust cup cavity jointly define a dust collecting space (23), and the cyclone space (21) and the dust collecting space (23) are respectively connected through the dust collecting channel (436) and the exhaust channel (4321).

9. The cyclone separation device according to claim 8, characterized in that: The outer edge of the barrier component (43) of the cyclone structure (40) is abutted against the cavity wall of the dust cup cavity.

10. A vacuum cleaner, characterized in that: Comprising the cyclone structure (40) according to any one of claims 1 to 6.

Images