An air duct component, a fan main unit, and a dust suction device

Abstract

The present invention provides an air duct assembly, a fan main unit, and a dust suction device. Among them, the air duct assembly includes a main body (1), a positioning kit (2), and a filter (3); the main body (1), the positioning kit (2), and the filter (3) are sleeved from the outside to the inside in sequence to form the air duct assembly; the entire air duct undergoes multi-stage filtration to filter the dust in the air flow layer by layer, so that the finally discharged air flow is environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and more specifically, to an air duct assembly, a fan main unit, and a dust suction device. Background Art

[0002] The working principle of a vacuum cleaner is that a fan drives an impeller to rotate, does work on the air, extracts the air in the dust collection bucket, forms a pressure difference between the bucket and the atmospheric pressure, and thus sucks the objects around the air inlet into the dust collection bucket. During the working process of the existing fan main unit, the air generated by the fan during the suction process needs to be discharged from the air outlet of the main unit. During the air exhaust process, dust will be discharged together with the air flow direction. When the dust is not filtered cleanly, secondary pollution will be formed, which is also unhygienic for the cleaning personnel during work. Summary of the Invention

[0003] The purpose of the present invention is to provide an air duct assembly, a fan main unit, and a dust suction device, which can solve at least one of the above-mentioned technical problems. The specific solutions are as follows:

[0004] According to a specific embodiment of the present invention, in a first aspect, the present invention provides an air duct assembly, including: a main body 1, a positioning kit 2, and a filter 3. The main body 1, the positioning kit 2, and the filter 3 are sequentially sleeved from the outside to the inside to form the air duct assembly.

[0005] Optionally, the positioning kit 2 includes:

[0006] A kit core 21 and a first air outlet 211 provided on the kit core 21; a kit wall 22, which is arranged around the kit core 21. A container space is formed between the kit wall 22 and the kit core 21 for the filter 3 to be inserted.

[0007] Optionally, the positioning kit 2 further includes:

[0008] A first rib 221, which is arranged horizontally along the kit wall 22;

[0009] At least one second rib 222, which is arranged longitudinally along the kit wall 22;

[0010] Wherein, the first rib 221 and the second rib 222 form at least one first sub-air outlet 223 and at least one second sub-air outlet 224. The first sub-air outlet 223 is located above the first rib 221, and the second sub-air outlet 224 is located below the first rib 221.

[0011] Optionally, the opening area of the second sub-air outlet is larger than the opening area of the first sub-air outlet 223.

[0012] Optionally, the main body 1 includes an inner cylinder 11 and an outer cover 12. A louver 111 is provided on the inner cylinder 11. The outer cover 12 is made of a transparent material, and a blower is accommodated in the main body 1.

[0013] Optionally, the filter 3 includes: an end cap 31; and a cylindrical outer shell 32. The end cap 31 is disposed on the top of the cylindrical outer shell 32, and the outer diameter of the end cap 31 is greater than the outer diameter of the outer shell 32; a second air outlet 321 is provided on a part of the top end of the end cap 31; a filter element 33 is disposed inside the cylindrical outer shell 32 for filtering dust in the airflow.

[0014] Optionally, the filter 3 further includes:

[0015] A third rib 322 is horizontally disposed on the upper part of the cylindrical outer shell 32, such that when the filter 3 is sleeved on the positioning kit 2, the third rib 322 and the first rib 221 form an approximate airtight structure.

[0016] Optionally, the airflow is blown out from the blower in the main body 1, passes through the first air outlet 211 on the positioning kit 2, flows through the filter element of the filter 3, then passes through the second sub-air outlet 224 on the positioning kit 2, flows through the louver 11 of the main body 1, and enters the space between the louver and the transparent cover 12, so as to form a reverse air vortex in the space, and then flows through the louver 11 and the first sub-air outlet 223 from the upper part of the space, and finally flows out from the second air outlet 321 on the filter element 3.

[0017] According to a specific embodiment of the present invention, in a second aspect, the present invention provides a blower main unit, including the air duct assembly as described in any one of the above.

[0018] According to a specific embodiment of the present invention, in a third aspect, the present invention provides a dust suction device, including the blower main unit as described above.

[0019] Compared with the prior art, the embodiments of the present invention have the following technical effects:

[0020] The present invention provides an air duct assembly, a blower main unit, and a dust suction device. In the air duct assembly of the present invention, during the operation of the vacuum cleaner, the entire airflow coming out from the upper part of the blower motor passes through the main body, the first air outlet of the positioning kit, the filter element on the filter, the air outlet covered with non-woven fabric in the middle of the positioning kit, the lower and upper parts of the louver on the main body, and the other air outlet covered with non-woven fabric on the positioning kit, and finally is discharged through the second air outlet. The entire air duct is filtered in multiple stages, and the dust in the airflow is filtered layer by layer, so that the finally discharged airflow is environmentally friendly. Description of the Drawings

[0021] The accompanying drawings herein are incorporated into and form a part of this specification, showing embodiments consistent with the present invention, and are used in conjunction with the specification to explain the principles of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0022] Figure 1 is a schematic diagram of the overall structure of the air duct assembly provided by an embodiment of the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the positioning kit provided by an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of the other side structure of the positioning kit provided by an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of the sectional structure of the positioning kit provided by an embodiment of the present invention;

[0026] Figure 5 is a schematic diagram of the structure of the filter provided by an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of the structure of the main body provided by an embodiment of the present invention;

[0028] Figure 7 is a schematic diagram of the air duct structure of the host provided by an embodiment of the present invention;

[0029] Figure 8 is a schematic diagram of the sealing structure provided by an embodiment of the present invention;

[0030] Figure 9 is a schematic diagram of the structure of the host provided by an embodiment of the present invention. Detailed implementation manners

[0031] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0032] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the", and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0033] It should be understood that the term "and / or" used herein is merely a correlative relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0034] It should be understood that although terms such as first, second, and third may be used to describe... in the embodiments of the present invention, these... should not be limited to these terms. These terms are only used to distinguish.... For example, without departing from the scope of the embodiments of the present invention, the first... can also be referred to as the second..., and similarly, the second... can also be referred to as the first....

[0035] Depending on the context, as used herein, the words "if", "when" can be interpreted as "when...", "when...", "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detecting (stated condition or event)", or "in response to detecting (stated condition or event)".

[0036] It should also be noted that the term "comprising", "including", or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the commodity or device including said element.

[0037] For ease of understanding, the specific application scenarios of the embodiments of the present application are first introduced below.

[0038] The air duct assembly and the fan main unit provided by the embodiments of the present application are applied to a vacuum cleaner, which includes but is not limited to an upright vacuum cleaner, a horizontal vacuum cleaner, a handheld vacuum cleaner, and an automatic vacuum cleaner (such as a floor sweeping robot), etc. The basic structure of the vacuum cleaner includes a control system, a fan, a separator, a dust collection bucket, a connecting rod, a brush head, etc. Among them, the fan main unit includes a power supply, a motor, a control system, a separator, a dust collection bucket, etc., and the specific structure is described through the following embodiments.

[0039] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] Embodiment 1

[0041] According to the specific embodiments of the present invention, the present invention provides an air duct assembly applied to a fan main unit. As Figure 1 shown, for the overall structure of the fan main unit, refer to the description in Embodiment 2, and the structure is shown in the appendix Figure 5 shown, which will not be elaborated here.

[0042] As Figure 1 shown, the present invention provides an air duct assembly, including: a main body 1, a positioning kit 2, and a filter 3. The main body 1, the positioning kit 2, and the filter 3 are sleeved from outside to inside in sequence to form the air duct assembly. Wherein, when the main body 1, the positioning kit 2, and the filter 3 are sleeved from outside to inside in sequence to form the air duct assembly, the air flow formed by the motor drive flows into the positioning kit 2 from the main body 1, and flows into the filter 3 from the first air outlet 211, and finally blows out from the second air outlet 321, thereby forming a surrounding and swirling air duct structure, making the dust cleaner after being filtered layer by layer. The air duct diagram is as Figure 7 shown.

[0043] Specifically, as Figure 2 shown, the positioning kit 2 includes: a kit core 21 and a first air outlet 211 arranged on the kit core 21; a kit wall 22, which is arranged around the kit core 21, and a container space is formed between the kit wall 22 and the kit core 21 for the filter 3 to be inserted. The positioning kit 2 is preferably a cylindrical structure. The kit core 21 is a protruding cylindrical structure located at the center of the positioning kit 2, and the first air outlet 211 is formed on the side wall of the kit core 21. Preferably, the first air outlet 211 can be a plurality of small holes arranged evenly, and the sizes of the small holes are the same. More preferably, the small holes are arranged in a certain area on the side wall of the kit core 21. The air from the fan passes through the inner depression of the kit core 21 and enters the positioning kit 2 through the small holes. A circle of sponge 213 is provided on the inner side of the kit core 21 opposite to the first air outlet 211, and the air flow first passes through this circle of sponge 213 before flowing through the first air outlet 211. A sealing gasket 214 is also provided at the lower part of the kit core 21, which seals with the structure inside the main body 1 and around the fan motor. In the space from the sealing gasket 214 to the top of the first air outlet 211, all the air flow from the fan motor flows out of this space through the first air outlet 211. As Figure 3 shown.

[0044] In addition, the top of the kit core 21 is an airtight top surface, and a crescent-shaped first buckle structure 212 is provided at the edge of the top surface. The first buckle structure 212 is locked with the second buckle structure 326 of the filter 3 through rotation, for example, locked after rotating 5-10 degrees.

[0045] A step portion 215 is formed at a position circumferentially slightly lower than the first snap structure 212 of the kit core 21, and a first sealing ring 216 is provided on the step portion 215 for sealingly engaging with the filter 3. As Figure 4 shown.

[0046] Optionally, the positioning kit 2 further includes: a first rib 221 disposed horizontally along the kit wall 22; and at least one second rib 222 disposed vertically along the kit wall 22; wherein, the first rib 221 and the second rib 222 form at least one first sub-air outlet 223 and at least one second sub-air outlet 224, the first sub-air outlet 223 is located above the first rib 221, and the second sub-air outlet 224 is located below the first rib 221.

[0047] Optionally, the first rib 221 is biased towards the top of the positioning kit 2 such that the opening area of the second sub-air outlet 224 is larger than the opening area of the first sub-air outlet 223. Wherein, the air coming out of the fan is depressed inside the kit core 21 and enters the positioning kit 2 through small holes, then flows out through the second sub-air outlet 224 and flows back into the positioning kit 2 through the first sub-air outlet 223.

[0048] Optionally, the first sub-air outlet 223 and the second sub-air outlet 224 are covered with a first filter screen, and the filter screen is formed of a non-woven fabric material.

[0049] As Figure 3 shown, the positioning kit 2 includes a plurality of positioning slots. As an implementation manner, for example, it includes five positioning slots, including one large slot 225 and 4 small slots 226. The five positioning slots are located at the lower end of the kit wall 22 of the positioning kit 2 and are positioned and installed on the main body 1 through the five positioning slots. Among them, the large slot is stuck at the wire of the motor of the main body 1, and the four small slots are respectively stuck at the positions of the main body 1.

[0050] As Figure 5 shown, the filter 3 includes: an end cap 31; and a cylindrical outer shell 32, the end cap 31 is disposed at the top of the cylindrical outer shell 32, and the outer diameter of the end cap 31 is larger than the outer diameter of the outer shell 32; a second air outlet 321 is disposed on the end cap 31.

[0051] Optionally, the filter 3 further includes: a third rib 322 disposed horizontally on the upper part of the cylindrical outer shell 32 such that when the filter 3 is sleeved on the positioning kit 2, the third rib 322 and the first rib 221 form an approximate airtight structure, as Figure 8 shown.

[0052] The cylindrical housing 32 of the filter 3 further includes: a fourth rib 323, arranged parallel to the third rib 322 and below it, and at least one fifth rib 324, arranged longitudinally along the cylindrical housing 32; wherein, the fourth rib 323 and the fifth rib 324 form a plurality of grid-shaped air vents 325. Among them, the third rib 322 protrudes from the fourth rib 323 and the fifth rib 324.

[0053] Optionally, the filter 3 further includes: a filter element 33, arranged inside the cylindrical housing 32, for filtering dust in the air flow. When the filter 3 is sleeved on the positioning kit 2, the air flow formed by the motor drive passes through the sponge 213 from the main body 1, flows into the positioning kit 2 from the first air outlet 211, passes through the grid-shaped air vents 325 and then flows out through the second sub-air outlet 224, and then flows into the positioning kit 2 again through the first sub-air outlet 223. At this time, since the third rib 322 and the first rib 221 form a sealed structure, the air flow cannot flow downward and can only flow upward into the groove on the lower side of the end cover 31, and then is blown out through the second air outlet 321. Thus, a surrounding and swirling air path structure is formed, making the dust cleaner after being filtered layer by layer.

[0054] Optionally, the second air outlet 321 is arranged on a part of the top end of the end cover 31. Optionally, the part of the top end of the end cover 31 where the second air outlet 321 is not arranged is on the side facing the user during use. In this way, when the user is using it, no air flow will blow towards the user from the second air outlet 321.

[0055] At least two second snap structures 326 are arranged inside the filter 3. The first snap structure 212 in the positioning core 21 and the second snap structure 326 of the filter 3 are locked by rotation, and the sizes of the second snap structure 326 and the first snap structure 212 are the same.

[0056] A second sealing ring 327 is arranged on the lower end surface of the cylindrical housing 32 of the filter 3. When the filter 3 is installed on the positioning kit 2, the second sealing ring 327 is pressed tightly against the first sealing ring 216 to form a sealed structure.

[0057] As Figure 6 shown, the main body 1 includes: an inner cylinder 11, an outer cover 12 and a drive circuit board 13. A plurality of gaps 111 are arranged longitudinally in the inner cylinder 11, and the outer cover 12 is made of a transparent material.

[0058] When the filter 3 cooperates with the positioning kit 2, the third rib 322 coincides with the first rib 221 to form a paired structure with certain sealing properties; in this way, a layer of non-woven fabric on the outer periphery of the filter element 21 coincides with the second sub-air outlet covered by the non-woven fabric. The air sequentially passes through the first air outlet on the positioning kit 2, the HEAP filter element 1, a layer of non-woven fabric on the outer periphery of the filter element, the lower part of the inner cylinder 11 of the louver on the main body 1 (here, the lower part means that after the third rib 322 coincides with the first rib 221, the inner cylinder 11 of the louver is divided into upper and lower parts, and the part that coincides with the second sub-air outlet 224 covered by the non-woven fabric is the lower part, and the part that coincides with the first sub-air outlet 223 covered by the non-woven fabric is the upper part), the upper part of the inner cylinder 11 of the louver on the main body 1 (at this time, after the air enters from the lower part, a rotating air flow is formed between the inner cylinder 11 of the louver and the outer transparent cover 12, and then enters the positioning kit 2 part again from the upper part and passes through the first sub-air outlet 223 covered by the non-woven fabric), and finally enters the atmosphere from the second air outlet 321.

[0059] In the air path assembly of the present invention, when the vacuum cleaner is working, the entire air flow coming out from the upper part of the fan motor passes through the main body, the first air outlet of the positioning kit, the filter element on the filter, the air outlet covered by the non-woven fabric in the middle of the positioning kit, the lower and upper parts of the louver on the main body, and the other air outlet covered by the non-woven fabric on the positioning kit, and finally is discharged through the second air outlet. The entire air path undergoes multi-stage filtration, filtering the dust in the air flow layer by layer, so that the finally discharged air flow is environmentally friendly.

[0060] Embodiment 2

[0061] As Figure 9 As shown, according to the specific implementation manner of the present invention, the present invention provides a fan main body, including the air path assembly described in any one of the above, and the air path assembly will not be elaborated.

[0062] Among them, the fan main body includes a power supply unit, a control circuit, and a fan. When the user turns on the working mode, under the drive of the power supply, the control circuit turns on the rotation mode of the fan, and the fan rotates continuously to generate negative pressure suction. The negative pressure suction is transmitted to the cleaning brush head through a hollow connecting rod. There is an air extraction port at the cleaning brush head, and the sundries on the ground enter the brush head under the action of the fan.

[0063] As Figure 9As shown in the figure, the present invention provides a vacuum cleaner main body 10. The vacuum cleaner main body 10 is cylindrical. The upper half thereof is a dust cup 104, and the lower half is a suction motor 106. A rotatable and detachable dust cup cover 103 is provided at the top of the dust cup 104; at the upper end of one side of the suction motor 106, a suction port 105 is vertically provided. The suction port 105 is a flat and hollow tubular shape. A suction pipe receiving groove 1051 is opened in the center of the suction port 105. At the upper end of the suction port 105 of the suction pipe receiving groove 1051, a semi-circular groove is opened, which is a suction pipe fixing portion 1052. On the other side of the suction motor 106, a battery pack 107 is vertically provided. The battery pack is covered with a battery pack cover plate 1071. At the bottom end of the front surface of the battery pack 107, a main body buckle 1072 is provided. The upper end of the battery pack 107 is connected with a handle 101. The handle 101 is connected with the upper end of the dust cup 104 through a connecting portion 102. A power switch 109 is provided on the front surface of the connecting portion 102. A hook 108 is fixedly provided on the side surface of the suction motor 106 corresponding to the handle 101.

[0064] The present invention provides a fan main body, including a designed air duct assembly, such that when the vacuum cleaner is in operation, the entire airflow coming out from the upper part of the fan motor passes through the main body, the first air outlet of the positioning kit, the filter element on the filter, the air outlet covered with non-woven fabric in the middle of the positioning kit, the lower and upper parts of the louvers on the main body, the other air outlet covered with non-woven fabric on the positioning kit, and finally is discharged through the second air outlet. The entire air duct undergoes multi-stage filtration, filtering the dust in the airflow layer by layer, so that the finally discharged airflow is environmentally friendly.

[0065] Embodiment 3

[0066] According to the specific embodiments of the present invention, the present invention provides a vacuuming device, including a control system and the fan main body as described above. The structure of the fan main body will not be elaborated herein.

[0067] Among them, the control system includes a power supply unit, a control circuit, and a fan. When the user turns on the working mode, under the drive of the power supply, the control circuit turns on the rotation mode of the fan. The fan continuously rotates, generating negative pressure suction. The negative pressure suction is transmitted to the cleaning brush head through a hollow connecting rod. There is a suction port at the cleaning brush head. Debris on the ground enters the brush head under the action of the fan and enters the dust collection bucket of the main body through the connecting rod.

[0068] The present invention provides a vacuuming device, including a designed air duct assembly, such that when the vacuum cleaner is in operation, the entire airflow coming out from the upper part of the fan motor passes through the main body, the first air outlet of the positioning kit, the filter element on the filter, the air outlet covered with non-woven fabric in the middle of the positioning kit, the lower and upper parts of the louvers on the main body, the other air outlet covered with non-woven fabric on the positioning kit, and finally is discharged through the second air outlet. The entire air duct undergoes multi-stage filtration, filtering the dust in the airflow layer by layer, so that the finally discharged airflow is environmentally friendly.

[0069] Finally, it should be noted that the embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0070] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. An air duct assembly, characterized in that it includes: a main body (1), a positioning kit (2) and a filter (3). The main body (1), the positioning kit (2) and the filter (3) are sleeved from outside to inside in sequence to form the air duct assembly. The main body (1) includes an inner cylinder (11), an outer cover (12) and a driving circuit board (13). Louvers are provided on the inner cylinder (11). The outer cover (12) is made of a transparent material, and a blower is accommodated in the main body (1). The positioning kit (2) includes: a kit core (21) and a first air outlet (211) provided on the kit core (21), a kit wall (22) which is arranged around the kit core (21). A container space is formed between the kit wall (22) and the kit core (21) for the filter (3) to be inserted, and first ribs (221) which are arranged horizontally along the kit wall (22). The filter (3) includes: a cylindrical outer shell (32) and an end cap (31); a second air outlet (321) which is provided on a part of the top of the end cap (31). The filter (3) further includes: third ribs (322) which are arranged horizontally on the upper part of the cylindrical outer shell (32), so that after the filter (3) is sleeved on the positioning kit (2), the third ribs (322) and the first ribs (221) form an approximate airtight structure.

2. The air duct assembly according to claim 1, characterized in that the positioning kit (2) further includes: at least one second rib (222) which is arranged longitudinally along the kit wall (22); wherein, the first rib (221) and the second rib (222) form at least one first sub-air outlet (223) and at least one second sub-air outlet (224). The first sub-air outlet (223) is located above the first rib (221), and the second sub-air outlet (224) is located below the first rib (221).

3. The air duct assembly according to claim 2, characterized in that the opening area of the second sub-air outlet (224) is larger than the opening area of the first sub-air outlet (223).

4. The air duct assembly according to claim 1, characterized in that the end cap (31) is arranged on the top of the cylindrical outer shell (32), and the outer diameter of the end cap (31) is larger than the outer diameter of the outer shell (32). The filter (3) includes: a filter element (33) which is arranged inside the cylindrical outer shell (32) and is used for filtering dust in the air flow.

5. The air duct assembly according to claim 1, characterized in that the air flow is blown out from the blower in the main body (1), passes through the first air outlet (211) on the positioning kit (2), flows through the filter element of the filter (3), then passes through the second sub-air outlet (224) on the positioning kit (2), flows through the louvers of the main body (1), enters the space between the louvers and the outer cover (12), so as to form a reverse cyclone in the space, and then flows through the louvers from the upper part of the space through the first sub-air outlet (223), and finally flows out from the second air outlet (321) on the filter element (33).

6. A main fan unit, comprising the air duct assembly according to any one of claims 1-5.

7. A dust suction device, comprising the main fan unit according to claim 6.

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