Air guide structure of dust collector fan and dust collector

Abstract

The air guide structure of the dust collector fan comprises an upper cover, a middle cover and a bottom cover, the upper cover, the middle cover and the bottom cover are sequentially connected in a stacked mode from top to bottom, and a cavity used for installing a fan assembly is defined by the middle cover and the bottom cover. The upper cover and the middle cover define a first space and a second space which are separated from each other, the first space communicates with the air inlet end of the fan assembly and is provided with a fan air inlet, and the second space communicates with the air outlet end of the fan assembly and is provided with a fan air outlet. According to the air guide structure of the dust collector fan, the air inlet channel and the air outlet channel are effectively isolated, and the first space and the second space are separated, so that air flow mixing and intersection are avoided, the efficiency of the fan is improved, eddy current and power loss are reduced, and meanwhile noise is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, and more specifically, to an air guiding structure of a vacuum cleaner fan and a vacuum cleaner. Background Art

[0002] In a vacuum cleaner, the fan is one of the core components, and its main function is to generate negative pressure through high-speed rotation to form a strong suction force to clean dust and debris. The air guiding structure of the fan plays a crucial role in the efficiency and performance of the entire dust suction process. The design of the air guiding structure can effectively guide external air into the interior of the fan for cooling, prevent the fan from being damaged due to overheating during high-speed operation, and ensure the stability of the air flow, enhancing the dust suction effect.

[0003] However, in the traditional fan design, there is connectivity between the air inlet and outlet paths of the fan. This connectivity not only causes air flow interference but also may lead to obvious noise problems. Summary of the Invention

[0004] The utility model aims to solve one of the technical problems in the related technologies to a certain extent. For this purpose, the utility model provides an air guiding structure of a vacuum cleaner fan. By effectively isolating the air inlet and outlet channels, the partition design between the first space and the second space avoids the mixing and intersection of air flows, improves the fan efficiency, reduces eddy currents and power losses, and simultaneously reduces noise.

[0005] The utility model also provides a vacuum cleaner with the above air guiding structure.

[0006] The technical solution adopted by the utility model is as follows: An air guiding structure of a vacuum cleaner fan is provided, which includes an upper cover, a middle cover, and a bottom cover that are stacked and connected in sequence from top to bottom. The middle cover and the bottom cover enclose a chamber for installing a fan assembly. The upper cover and the middle cover enclose a separated first space and a second space. The first space is communicated with the air inlet end of the fan assembly and has a fan air inlet, and the second space is communicated with the air outlet end of the fan assembly and has a fan air outlet.

[0007] After adopting the above structure, the air inlet and outlet channels of the fan are effectively isolated, thus avoiding the problem of mutual interference between the air inlet and outlet paths in the traditional design. Specifically, the partition design between the first space and the second space ensures that the air flows go their own ways when entering and leaving the fan, and the intake and exhaust no longer mix or intersect, which greatly improves the working efficiency of the fan. The independent channels between the air inlet end and the air outlet end can maintain the smoothness of the air flow, reduce the generation of eddy currents, and avoid power losses caused by air flow disorder. In addition, this structure can also significantly reduce the noise generated by the fan during operation.

[0008] Meanwhile, the layered design of the air guiding structure can optimize the cooling effect of the fan. The air in the first space directly enters the fan through the air inlet, cooling the fan to prevent it from overheating.

[0009] According to an embodiment of the present invention, the upper cover has a first partition baffle; the first partition baffle is used to effectively separate the air inlet and outlet paths of the fan, preventing the air flow between the two from interfering with each other. Specifically, the first partition baffle is located inside the upper cover and jointly forms a partition structure with the upper cover and the middle cover, physically isolating the first space and the second space, thereby ensuring the independence of air intake and exhaust.

[0010] According to an embodiment of the present invention, the middle cover has a second partition baffle, and the combination of the first partition baffle and the second partition baffle is used to separate the first space and the second space.

[0011] According to an embodiment of the present invention, the bottom end of the first partition baffle has a card slot, and the upper end of the second partition baffle is inserted into the card slot; this plug-in fit enhances the connection stability between the partition baffles. Through the combination of the card slot and the upper end of the second partition baffle, the two baffles can be closely fitted to form a firm isolation barrier, effectively avoiding air leakage.

[0012] According to an embodiment of the present invention, the middle cover has an air outlet guide plate; the air outlet guide plate is used to guide the space discharged by the fan assembly to the air outlet of the fan on the upper cover.

[0013] According to an embodiment of the present invention, the upper cover has a mounting portion, and an air inlet notch is provided at the upper end of the mounting portion; the air inlet notch is used to guide external air to enter the interior of the fan through the mounting portion.

[0014] According to an embodiment of the present invention, the mounting portion is provided with a lateral air outlet, and the lateral air outlet is communicated with the air outlet guide plate.

[0015] According to an embodiment of the present invention, a cover plate is connected to the upper end of the air outlet guide plate; the cover plate is used to close and fix the upper structure of the air outlet guide plate, thereby ensuring the integrity and stability of the air outlet channel. The design of the cover plate can enhance the structural strength of the air outlet guide plate.

[0016] According to an embodiment of the present invention, the middle cover and the bottom cover enclose a spiral air duct, and the spiral air duct has a dust suction interface; this design aims to enhance the rotation effect of the air flow to improve the suction force and separation efficiency of the vacuum cleaner. The spiral air duct optimizes the air flow path, enabling the air to flow in a spiral direction when entering the dust suction interface, thereby achieving more effective air kinetic energy conversion. This cyclone design can promote the separation of dust and air and improve the dust suction effect.

[0017] A vacuum cleaner, comprising a dust collection bucket and the air guiding structure described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a perspective view of the air guiding structure in the embodiment of the present invention;

[0020] Figure 2 is an exploded view of the air guiding structure in the embodiment of the present invention;

[0021] Figure 3 is a perspective view of the upper cover in the embodiment of the present invention;

[0022] Figure 4 is a partial structural view of the air guiding structure in the embodiment of the present invention;

[0023] Figure 5 is a structural schematic diagram of the air guiding structure in the embodiment of the present invention;

[0024] Figure 6 is a perspective view of the middle cover in the embodiment of the present invention;

[0025] Figure 7 is a structural schematic diagram of the bottom of the middle cover in the embodiment of the present invention;

[0026] Figure 8 is a perspective view of the bottom cover in the embodiment of the present invention.

[0027] Description of the reference numerals in the drawings:

[0028] 1. Upper cover; 2. Middle cover; 3. Bottom cover; 4. Filter assembly; 5. Fan assembly; 6. Cover plate;

[0029] 11. First partition baffle; 12. Card slot;

[0030] 21. Installation part; 22. Second partition baffle; 23. Air outlet guide plate; 24. Fan air inlet; 25. Fan air outlet; 26. Spiral air duct;

[0031] 21a. Air inlet notch; 21b. Lateral air outlet;

[0032] 26a. Dust suction interface;

[0033] 31. Filter net. Detailed implementation manners

[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. Embodiment 1

[0035] As Figure 1-8 shown, in this embodiment, a wind guiding structure of a vacuum cleaner fan is disclosed, which includes an upper cover 1, a middle cover 2 and a bottom cover 3 that are stacked and connected in sequence from top to bottom. The middle cover 2 and the bottom cover 3 enclose a chamber for installing a fan assembly 5. The upper cover 1 and the middle cover 2 enclose a first space and a second space that are separated from each other. The first space is communicated with the air inlet end of the fan assembly 5 and has a fan air inlet 24, and the second space is communicated with the air outlet end of the fan assembly 5 and has a fan air outlet 25.

[0036] Furthermore, in this embodiment, the bottom cover 3 is used to connect to a dust collection bucket and forms a dust collection space in combination with the dust collection bucket. A filter assembly 4 is detachably installed at the bottom of the bottom cover 3. A filter net 31 is provided at the central position of the bottom cover 3, and the filter net 31 is aligned with the air inlet end of the fan assembly 5. The middle cover 2 and the bottom cover 3 enclose a spiral air duct 26, and the spiral air duct 26 has a dust suction interface 26a. The dust suction interface 26a is connected to a dust suction hose, and the other end of the dust suction hose is connected to a dust suction head.

[0037] Combined with Figure 2 shown, the middle cover 2 has an air outlet guide plate 23, the upper cover 1 has a mounting portion 21, an air inlet notch 21a is provided at the upper end of the mounting portion 21, and the air outlet guide plate 23 is located in the second space. The mounting portion 21 is provided with a lateral air outlet 21b, and the lateral air outlet 21b is communicated with the air outlet guide plate 23. The upper end of the air outlet guide plate 23 is connected with a cover plate 6; the cover plate 6 is used to close and fix the upper structure of the air outlet guide plate 23, so as to ensure the integrity and stability of the air outlet channel. The design of the cover plate 6 can enhance the structural strength of the air outlet guide plate 23.

[0038] Combined with Figure 5As shown, when the fan operates in this embodiment, negative pressure is generated at its bottom for air intake. Since the lower cover and the dust collection bucket form a closed dust collection space, and the dust suction interface 26a is connected to this dust collection space, negative pressure is generated at the dust suction head to suck in dust or debris. The dust or debris passes through the hose, the dust suction interface 26a, the dust collection space, and the filter assembly 4 in sequence. The dust or debris is intercepted by the filter assembly 4 and stored in the dust collection space. The filtered air passes through the internal air duct of the fan assembly 5 and flows through the lateral air outlet 21b, the air outlet guide plate 23, and the fan air outlet 25 in sequence and is discharged outward. When the fan is operating, the air outside the vacuum cleaner enters the first space through the fan air inlet 24, and then flows through the air intake notch 21a into the installation part 21 to cool the fan in the installation part 21. The first space is spaced apart from the dust collection space and they do not communicate with each other. The second space is connected to the dust collection space through the internal air duct of the fan assembly 5.

[0039] Specifically, in combination with Figure 3 and Figure 6 shown, the upper cover 1 has a first spacer baffle 11, the middle cover 2 has a second spacer baffle 22, the bottom end of the first spacer baffle 11 has a slot 12, and the upper end of the second spacer baffle 22 is snapped into the slot 12. The combination of the first spacer baffle 11 and the second spacer baffle 22 is used to separate the first space and the second space.

[0040] In another embodiment, a vacuum cleaner is disclosed, which includes a dust collection bucket and the air guiding structure described in this embodiment.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An air guiding structure of a vacuum cleaner fan, characterized in that: It includes an upper cover, a middle cover and a bottom cover which are stacked and connected in sequence from top to bottom. The middle cover and the bottom cover enclose a chamber for installing a fan assembly. The upper cover and the middle cover enclose a first space and a second space which are separated from each other. The first space is communicated with the air inlet end of the fan assembly and has a fan air inlet, and the second space is communicated with the air outlet end of the fan assembly and has a fan air outlet.

2. The air guiding structure of a vacuum cleaner fan according to claim 1, characterized in that: The upper cover has a first partition baffle.

3. The air guiding structure of a vacuum cleaner fan according to claim 2, characterized in that: The middle cover has a second partition baffle, and the combination of the first partition baffle and the second partition baffle is used to separate the first space and the second space.

4. The air guiding structure of a vacuum cleaner fan according to claim 3, characterized in that: The bottom end of the first partition baffle has a card slot, and the upper end of the second partition baffle is snapped into the card slot.

5. The air guiding structure of a vacuum cleaner fan according to claim 1, wherein: The middle cover has an air outlet guide plate.

6. The air guiding structure of a vacuum cleaner fan according to claim 5, characterized in that: The upper cover has a mounting portion, and an air inlet notch is provided at the upper end of the mounting portion.

7. The air guiding structure of a vacuum cleaner fan according to claim 6, characterized in that: A lateral air outlet is formed in the mounting portion, and the lateral air outlet is communicated with the air outlet guide plate.

8. The air guiding structure of a vacuum cleaner fan according to claim 5, characterized in that: A cover plate is connected to the upper end of the air outlet guide plate.

9. The air guiding structure of a vacuum cleaner fan according to any one of claims 1-8, characterized in that: The middle cover and the bottom cover enclose a spiral air duct, and the spiral air duct has a dust suction interface.

10. A vacuum cleaner, characterized in that: It includes a dust collection bucket and the air guide structure according to any one of claims 1-9.

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