CN220581364U - Diagonal flow fan with wavy vortex-preventing ring and air purifier - Google Patents
Diagonal flow fan with wavy vortex-preventing ring and air purifier Download PDFInfo
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- CN220581364U CN220581364U CN202321743789.0U CN202321743789U CN220581364U CN 220581364 U CN220581364 U CN 220581364U CN 202321743789 U CN202321743789 U CN 202321743789U CN 220581364 U CN220581364 U CN 220581364U
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Abstract
The utility model discloses an diagonal flow fan with a wavy vortex-preventing ring, which is applied to an air purifier, wherein the diagonal flow fan is arranged in a fan shell and comprises a diagonal flow wind wheel and a driving motor which are fixedly connected with each other; the air inlet and the air outlet of the diagonal flow wind wheel are respectively positioned at two ends of the fan shell, the whole diagonal flow wind wheel is of a trapezoid structure, and the distance between the maximum diameter of the diagonal flow fan and the near-end surface of the fan shell is 5-15mm; the diagonal flow wind wheel is provided with the vortex-preventing ring, the vortex-preventing ring is provided with the wavy structure, the smooth contact area between the vortex-preventing ring and outlet airflow can be increased by using the structure of the diagonal flow fan, the pressure pulsation and turbulent kinetic energy of the vortex-preventing ring area are reduced, and the noise of the diagonal flow fan and the whole air purifier can be reduced on the premise that the air quantity is not influenced.
Description
Technical Field
The utility model relates to the field of diagonal fans, in particular to a diagonal fan for an air purifier.
Background
The diagonal flow fan is a fan which combines the characteristics of an axial flow fan and a centrifugal fan, and the impeller of the diagonal flow fan enables air to simultaneously perform axial movement and centrifugal movement, and the movement mode of the air in the shell is a mixture of the axial flow type and the centrifugal type. The diagonal flow fan has the advantages of high pressure, large air quantity, high efficiency, simple structure, small volume, simple installation and the like. However, the diagonal flow fan also generates certain noise in the running process, mainly due to air flow separation and vortex formation between the impeller and the shell, wherein the vicinity of the suction surface of the blade and the vortex-preventing ring is a region where flow field pressure pulsation and turbulent kinetic energy are concentrated, and is also one of main noise sources of the diagonal flow fan.
Therefore, how to effectively reduce noise while guaranteeing the performance of the fan is a technical problem to be solved in the design of the diagonal flow fan.
Disclosure of Invention
The utility model aims to solve the main technical problem of providing an inclined flow fan with a wavy vortex-preventing ring and an air purifier, which are suitable for occasions with high requirements on noise, such as the air purifier.
In order to solve the technical problems, the utility model provides an inclined flow fan with a wavy vortex-preventing ring and an air purifier.
The diagonal flow fan with the wavy vortex-preventing ring is arranged in a fan shell and comprises a diagonal flow wind wheel and a driving motor which are fixedly connected with each other; the air inlet and the air outlet of the diagonal flow wind wheel are respectively positioned at two ends of the fan shell;
the whole diagonal flow wind wheel is of a trapezoid structure, and the distance between the maximum diameter of the diagonal flow fan and the near-end surface of the fan shell is 5-15mm; the diagonal flow wind wheel is provided with an anti-vortex ring, and the anti-vortex ring is of a wave-shaped structure.
In a preferred embodiment, an anti-vortex ring is arranged at the air inlet of the diagonal flow wind wheel, and the anti-vortex ring is fixedly connected with the blades of the diagonal flow wind wheel;
and a wave-shaped structure is arranged in the area of the vortex-preventing ring.
In a preferred embodiment, the wave-shaped structure of the vortex-preventing ring has periodicity, and peaks and troughs of the wave-shaped structure are uniformly distributed along the circumferential direction of the air inlet.
In a preferred embodiment, the wavy structures are periodically and uniformly distributed between the intervals of two adjacent blades of the diagonal flow fan.
In a preferred embodiment, the distance between the initial position of the wavy structure and the overlapping line of the adjacent blade on the vortex-preventing ring is 3mm; the distance between the ending position of the wavy structure and the overlapping line of the adjacent blade on the vortex-preventing ring is 3mm.
In a preferred embodiment, the wave-shaped structure has a wavelength of 10-30mm and a wave height of 2-10mm.
In a preferred embodiment, a rounded corner is used to transition between the wavy structure and the vortex ring body.
In a preferred embodiment, the wave crest of the wavy structure points to the air outlet direction; the wave crest of the wave-shaped structure and the air inlet surface form an included angle of 30 degrees.
In a preferred embodiment, the included angle between the vortex-preventing ring and the air inlet surface is set to be 20 degrees.
An air purifier using any one of the above-mentioned diagonal flow fans with wavy vortex-preventing rings, characterized in that: comprises a fan shell, a shell, an inlet grille, an oblique flow wind wheel, a driving motor, a motor fixing bracket and an outlet grille;
the outlet grille and the inlet grille are arranged at intervals along the axial direction of the fan shell, and an installation cavity for installing the motor fixing support and the diagonal flow motor is formed at intervals between the outlet grille and the inlet grille.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the utility model provides an oblique flow fan with a wavy vortex-preventing ring, wherein a wavy structure is processed in the area of the vortex-preventing ring of a wind wheel, so that the smooth contact area between the vortex-preventing ring and outlet airflow is increased, the noise generated during the operation of the oblique flow fan can be effectively reduced, and the air quantity is not influenced.
Drawings
FIG. 1 is a schematic illustration of an diagonal flow wind wheel with a wavy anti-vortex ring applied to an air purifier;
FIG. 2 is a schematic view of a diagonal flow wind wheel with undulating anti-vortex rings;
figures 3, 4, 5 are front, bottom and isometric views, respectively, of an diagonal flow wind wheel with a wave anti-vortex ring.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," configured to, "" engaged with, "" connected to, "and the like are to be construed broadly, and may be, for example," connected to, "wall-mounted," connected to, removably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, or indirectly connected to, through an intermediary, and may be in communication with each other between two elements, as will be apparent to those of ordinary skill in the art, in view of the detailed description of the terms herein.
As shown in fig. 1, the present embodiment provides a diagonal flow fan with a wave-shaped vortex ring and an air purifier, the air purifier comprises an outlet grille 1, a motor fixing bracket 2, a driving motor 3, a diagonal flow wind wheel 4, a fan shell 5, an inlet grille 6, a shell 7 and a motor control module 8.
The outlet grille 1 and the inlet grille 6 are arranged along the axial direction of the fan shell 5 at intervals, so that an installation cavity for installing the motor fixing frame 2, the driving motor 3 and the diagonal flow wind wheel 4 is formed between the outlet grille 1 and the inlet grille 6, the motor fixing support 2 is fixedly connected with the fan shell 5, and the motor control module 8 is arranged at the bottom of the whole air purifier.
The utility model provides a diagonal flow fan with wave prevents vortex including having wave and prevents diagonal flow wind wheel 4 and driving motor of vortex, has wave and prevents vortex's diagonal flow wind wheel 4 and driving motor 3 output shaft and pass through the nut and link firmly, diagonal flow wind wheel 4 gyration central axis coincides with driving motor output shaft's gyration central axis, through the fixed fastening position of locating piece on the driving motor output shaft, the motor shaft hole of diagonal flow wind wheel 4 keeps good meshing with the motor output shaft through asymmetric structure.
As shown in fig. 2, a schematic view of an diagonal flow wind wheel 4 with wavy vortex rings is shown, in this embodiment, the number of blades of the diagonal flow wind wheel 4 is 13, and wavy structures 9 are periodically and uniformly arranged on the vortex rings between the blades, and the number of wavy structures 9 is 13. The wave-shaped structure 9 of the vortex-preventing ring has periodicity, and wave crests and wave troughs of the wave-shaped structure 9 are uniformly distributed along the circumferential direction of the air inlet.
The distance between the initial position of the wavy structure 9 and the overlapping line of the adjacent blade on the vortex-preventing ring is 3mm, and the distance between the final position of the wavy structure 9 and the overlapping line of the adjacent blade on the vortex-preventing ring is 3mm. The included angle between the vortex-preventing ring and the air inlet surface is 20 degrees, and the included angle between the wave crest of the vortex-preventing ring wavy structure 9 and the air inlet surface is 30 degrees. The starting and ending positions of the wavy structure 9 adopt round corners and vortex-preventing rings for smooth transition.
In this embodiment, the air inlet and the air outlet of the diagonal flow wind wheel 4 are respectively located at two ends of the fan housing, the overall arrangement of the diagonal flow wind wheel 4 adopts a trapezoid structure design, the distance between the maximum diameter of the diagonal flow fan and the fan housing is 5-15mm, the air outlet is ensured to be smooth, and the backflow is reduced.
The foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present utility model within the scope of the present utility model disclosed herein by this concept, which falls within the actions of invading the protection scope of the present utility model.
Claims (10)
1. The diagonal flow fan with the wavy vortex-preventing ring is characterized in that the diagonal flow fan is arranged in a fan shell and comprises a diagonal flow wind wheel and a driving motor which are fixedly connected with each other; the air inlet and the air outlet of the diagonal flow wind wheel are respectively positioned at two ends of the fan shell;
the whole diagonal flow wind wheel is of a trapezoid structure, and the distance between the maximum diameter of the diagonal flow fan and the near-end surface of the fan shell is 5-15mm; the diagonal flow wind wheel is provided with an anti-vortex ring, and the anti-vortex ring is of a wave-shaped structure.
2. The diagonal flow fan with the wavy vortex-preventing ring according to claim 1, wherein the vortex-preventing ring is arranged at the air inlet of the diagonal flow wind wheel and fixedly connected with the blades of the diagonal flow wind wheel;
a wave-shaped structure is arranged in the area of the vortex-preventing ring.
3. The diagonal flow fan with the wavy vortex ring according to claim 1, wherein the wavy structure of the vortex ring has periodicity, and peaks and valleys of the wavy structure are uniformly distributed along the circumferential direction of the air inlet.
4. A diagonal flow fan with a wavy vortex ring according to claim 3, wherein the wavy structure is periodically and evenly distributed between the intervals of two adjacent blades of the diagonal flow fan.
5. The diagonal flow fan with an undulating anti-vortex ring of claim 4 wherein the distance between the starting location of the undulating structure and the line of engagement of its adjacent blades on the anti-vortex ring is 3mm; the distance between the ending position of the wavy structure and the overlapping line of the adjacent blade on the vortex-preventing ring is 3mm.
6. The diagonal flow fan with the wavy vortex ring according to claim 1, wherein the wavelength of the wavy structure is 10-30mm, and the wave height is 2-10mm.
7. The diagonal flow fan with the wavy vortex ring as claimed in claim 1, wherein the wavy structure and the vortex ring body are transited by adopting a round angle.
8. The diagonal flow fan with the wavy vortex ring according to claim 1, wherein the wave crest of the wavy structure points to the air outlet direction; the wave crest of the wave-shaped structure and the air inlet surface form an included angle of 30 degrees.
9. The diagonal flow fan with wavy vortex ring according to claim 1, wherein the included angle between the vortex ring and the air inlet surface is set to 20 °.
10. An air cleaner employing the diagonal flow fan with wavy vortex ring as claimed in any one of claims 1 to 9, characterized in that: comprises a fan shell, a shell, an inlet grille, an oblique flow wind wheel, a driving motor, a motor fixing bracket and an outlet grille;
the outlet grille and the inlet grille are arranged at intervals along the axial direction of the fan shell, and an installation cavity for installing the motor fixing support and the diagonal flow motor is formed at intervals between the outlet grille and the inlet grille.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743789.0U CN220581364U (en) | 2023-07-05 | 2023-07-05 | Diagonal flow fan with wavy vortex-preventing ring and air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321743789.0U CN220581364U (en) | 2023-07-05 | 2023-07-05 | Diagonal flow fan with wavy vortex-preventing ring and air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581364U true CN220581364U (en) | 2024-03-12 |
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ID=90108223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321743789.0U Active CN220581364U (en) | 2023-07-05 | 2023-07-05 | Diagonal flow fan with wavy vortex-preventing ring and air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581364U (en) |
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2023
- 2023-07-05 CN CN202321743789.0U patent/CN220581364U/en active Active
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