CN218207123U

CN218207123U - Novel amortization fan structure

Info

Publication number: CN218207123U
Application number: CN202221790603.2U
Authority: CN
Inventors: 赖进龙
Original assignee: Suzhou Pengzhun Technology Co ltd
Current assignee: Suzhou Pengzhun Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2023-01-03
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a novel noise reduction fan structure, which comprises a bottom plate and a cover plate, wherein a placing cavity and an air outlet are arranged between the bottom plate and the cover plate, a fan is arranged in the placing cavity, and a cavity is arranged on the bottom plate close to the outlet; one side of the cavity close to the fan is provided with a first through hole. The utility model discloses a cavity structure that sets up on the bottom plate can guarantee that the fan passes through first through-hole part noise absorption when the operation, reaches the effect of making an uproar of falling.

Description

Novel amortization fan structure

Technical Field

The utility model relates to a radiator fan technical field, concretely relates to novel amortization fan structure.

Background

The performance of the first generation of electronic products is improved compared with the first generation of electronic products, the heat productivity of electronic components of the electronic products is greatly increased, and the heat dissipation fan is required to increase higher rotating speed efficiency for heat dissipation so as to avoid the influence of overhigh heat on the service life of the products.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a novel amortization fan structure, can guarantee through the cavity structure that sets up on the bottom plate that the fan is through first through-hole part noise absorption when the operation, reach the effect of making an uproar of falling.

In order to solve the technical problem, the utility model provides a novel noise reduction fan structure, which comprises a bottom plate and a cover plate, wherein a placing cavity and an air outlet are arranged between the bottom plate and the cover plate, a fan is arranged in the placing cavity, and a cavity is arranged on the bottom plate close to the outlet; one side of the cavity close to the fan is provided with a first through hole.

Furthermore, an air inlet is formed in the cover plate.

Further, the optimal diameter range of the first through hole is 0.2% -1% of the outer diameter of the fan impeller.

Furthermore, a partition plate is arranged in the cavity, and a second through hole is formed in the partition plate.

Further, one side of the cavity close to the fan is provided with a corrugated part.

Furthermore, the bottom plate and the cover plate are made of metal or plastic.

The utility model has the advantages that: this device utilizes the chamber of placing of setting on the bottom plate to absorb the noise that the fan produced when the operation, and wind gets into the cavity through first through-hole during the fan operation, reduces the noise that its and lateral wall collision brought from this.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the cavity according to the first embodiment of the present invention.

Fig. 3 is a schematic view of a cavity structure according to a second embodiment of the present invention.

Fig. 4 is a schematic structural view of a cavity according to a third embodiment of the present invention.

Fig. 5 is an experimental data chart of the present invention.

The reference numbers in the figures illustrate: 1. a base plate; 2. a cover plate; 3. a placement chamber; 4. an air outlet; 5. a fan; 6. a cavity; 7. a first through hole; 8. a wrinkle part; 9. a partition plate; 10. a second through hole; 11. and an air inlet.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 4, an embodiment of a novel muffling fan 5 structure of the present invention includes a bottom plate 1 and a cover plate 2, the cover plate 2 is provided with an air inlet 11, a placing cavity 3 and an air outlet 4 are provided between the bottom plate 1 and the cover plate 2, the placing cavity 3 is provided with a fan 5 therein, and the bottom plate 1 is provided with a cavity 6 near an outlet; the side of the cavity 6 close to the fan 5 is provided with a first through hole 7.

The distance between the fan 5 and the side wall of the base plate 1 of the prior fan 5 is constant, but the prior fan 5 pursues efficiency, and in the design, the distance between the fan 5 and the side wall of the base plate 1 is increasingly larger from the downwind direction, so that the air volume is increased, but a bad point is designed, namely a pressure concentration area is formed at the position where the distance between the fan 5 and the side wall is changed at the beginning, namely the position where the distance between the fan 5 and the side wall is minimum, the pressure in the area is increased when the fan 5 is started, and the area generates larger noise with the side wall when the fan 5 runs;

the distance between fan 5 of this structure and the lateral wall of bottom plate 1 is also bigger and bigger from the downwind direction, but this device has set up a cavity 6 at the pressure concentration district, can be through the balanced internal and external pressure of first through-hole 7 when fan 5 starts, absorbs partial amount of wind and guarantees the effect of making an uproar, the effect data picture is seen in fig. 5

The side of the cavity 6 close to the fan 5 is provided with a corrugated part 8, so that the noise reduction effect is further enhanced.

The optimum diameter range of the first through hole 7 is 0.2% -1% of the outer diameter of the impeller of the fan 5.

Be provided with baffle 9 in the cavity 6, be provided with second through-hole 10 on the baffle 9, the shape of second through-hole 10 is any special-shaped hole to hole number more than or equal to 1 can, for example common circular port or long circular port, can further fall the noise to the wind that gets into and place chamber 3.

The base plate 1 and the cover plate 2 are made of metal or plastic.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A novel noise reduction fan structure is characterized by comprising a bottom plate and a cover plate, wherein a placing cavity and an air outlet are arranged between the bottom plate and the cover plate, a fan is arranged in the placing cavity, and a cavity is arranged on the bottom plate close to the outlet;

one side of the cavity close to the fan is provided with a first through hole.

2. The new muffling fan structure of claim 1, wherein the cover plate has air inlets.

3. The novel muffling fan structure of claim 1, wherein the optimal diameter range of the first through hole is 0.2% -1% of the outer diameter of the fan impeller.

4. The novel muffling fan structure of claim 1, wherein a partition is disposed within the cavity, and wherein the partition is provided with a second through hole.

5. The new muffling fan structure of claim 1, wherein the cavity is provided with a corrugated portion on a side thereof adjacent to the fan.

6. The new muffling fan structure of claim 1, wherein the bottom plate and the cover plate are made of metal or plastic.