CN214617147U

CN214617147U - Centrifugal fan frame device

Info

Publication number: CN214617147U
Application number: CN202120488034.5U
Authority: CN
Inventors: 何克锋; 李龙
Original assignee: Kunshan Ping Tai Electronic Co ltd
Current assignee: Kunshan Ping Tai Electronic Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-11-05
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a centrifugal fan framework device, include: the metal bottom plate and the side wall plate are positioned at the edge of the metal bottom plate, one side of the side wall plate is provided with an air outlet gap, the metal bottom plate is positioned at the periphery of the positioning cylinder and is provided with a plurality of lower air inlets at intervals along the circumferential direction, and a plurality of strip-shaped through holes are formed in the area between the lower air inlets of the metal bottom plate and the side wall plate; the strip-shaped through hole covers a plastic plate layer, and a plurality of convex parts which are convex outwards are arranged on the surface of the plastic plate layer opposite to the impeller at intervals; the metal soleplate's bar through-hole inside wall is provided with a plurality of pairs of arc branches at interval, and every 2 arc branches are in setting up in opposite directions in every pair of arc branch, and this arc branch embedding in the lateral wall of plastic sheet layer. The utility model discloses centrifugal fan framework device had both been favorable to improving the holistic air output of fan to improve heat dispersion, also reduced the noise.

Description

Centrifugal fan frame device

Technical Field

The utility model relates to a centrifugal fan framework device belongs to electron product heat dissipation field.

Background

As people pay more attention to quality and taste of life, the pursuit of science and technology is more perfect, and portable and trendy electronic devices such as notebook computers tend to be light, thin and exquisite. The heat dissipation fan is an important heat dissipation module for computer products (especially notebook computers), because the temperature directly affects the operating performance, stability and service life of the CPU, and the structural design of the heat dissipation fan relatively changes with the design development trend of computer product form.

Disclosure of Invention

The utility model aims at providing a centrifugal fan frame device, this centrifugal fan frame device existing be favorable to improving the holistic air output of fan to improve heat dispersion, also reduced gaseous noise that produces along the radial discharged impeller again along entering the impeller in the wind gap along the axial under the pressure differential, thereby brought the travelling comfort for the user.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a centrifugal fan frame device comprising: the air conditioner comprises a metal bottom plate and a side wall plate positioned at the edge of the metal bottom plate, wherein an air outlet notch is formed in one side of the side wall plate, and a positioning cylinder is arranged in the center of the metal bottom plate;

a plurality of lower air inlets are formed in the periphery of the positioning cylinder of the metal bottom plate at intervals along the circumferential direction, and a plurality of strip-shaped through holes are formed in the area between the lower air inlets of the metal bottom plate and the side wall plate;

a reinforcing rib is arranged between every two adjacent strip-shaped through holes, the strip-shaped through holes cover a plastic rubber plate layer, and a plurality of convex parts protruding outwards are arranged on the surface of the plastic rubber plate layer opposite to the impeller at intervals; the metal soleplate's bar through-hole inside wall is provided with a plurality of pairs of arc branches at interval, and every 2 arc branches are in setting up in opposite directions in every pair of arc branch, and this arc branch embedding in the lateral wall of plastic sheet layer.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the surface of the plastic plate layer on one side of the side wall plate is provided with a depressed area, and the raised part is arranged in the depressed area.

2. In the above scheme, the shape of the convex part is triangular.

3. In the above scheme, the plurality of pairs of arc-shaped supporting strips are arranged on one side, far away from the positioning cylinder, of the inner side wall of the strip-shaped through hole.

4. In the above scheme, the metal bottom plate is an aluminum bottom plate.

Because of the application of the technical scheme, compared with the prior art, the utility model have following advantage and effect:

1. the utility model discloses centrifugal fan frame device, its bar through-hole that is located the metal soleplate covers a plastic film layer, and this plastic film layer and impeller surface interval in opposite directions are provided with a plurality of bellyings that outwards bulge, have both reduced the whole weight of axle center fan, have also reduced the noise that gas produced when getting into the impeller along the axial from the inlet under the pressure differential and then discharging the impeller along radial, thereby bring the travelling comfort for the user; in addition, the upper surface of the plastic board layer provided with the convex part is provided with a concave area, so that the integral air output of the fan is further improved, and the heat dissipation performance is improved.

2. The utility model discloses centrifugal fan framework device, the bar through-hole inside wall interval of its metal bottom plate is provided with a plurality of pairs of arc branches, and every 2 arc branches are setting in opposite directions in every pair of arc branches, and this arc branch embedding in the lateral wall of plastic sheet layer, both reduced the whole weight of axle center fan, also improved the joint strength of metal bottom plate and plastic sheet layer to the reliability and the life of fan have been improved.

Drawings

FIG. 1 is a schematic structural view of a centrifugal fan frame device of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a of fig. 2.

In the above drawings: 1. a lower air inlet; 2. a metal base plate; 4. a side wall panel; 5. an air outlet notch; 7. a positioning cylinder; 8. a strip-shaped through hole; 9. reinforcing ribs; 10. a plastic sheet layer; 101. a recessed region; 11. a boss portion; 12. an arc-shaped branch.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the patent; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: a centrifugal fan frame device comprising: the air conditioner comprises a metal bottom plate 2 and a side wall plate 4 positioned at the edge of the metal bottom plate 2, wherein an air outlet gap 5 is formed in one side of the side wall plate 4, and a positioning cylinder 7 is arranged in the center of the metal bottom plate 2;

a plurality of lower air inlets 1 are formed in the periphery of the positioning cylinder 7 of the metal base plate 2 at intervals along the circumferential direction, and a plurality of strip-shaped through holes 8 are formed in the area between the lower air inlets 1 of the metal base plate 2 and the side wall plate 4;

a reinforcing rib 9 is arranged between the adjacent strip-shaped through holes 8, the strip-shaped through holes 8 cover a plastic plate layer 10, and a plurality of convex parts 11 which are convex outwards are arranged on the surface of the plastic plate layer 10 opposite to the impeller 3 at intervals; a plurality of pairs of arc-shaped supporting strips 12 are arranged on the inner side wall of the strip-shaped through hole 8 of the metal bottom plate 2 at intervals, 2 arc-shaped supporting strips 12 in each pair of arc-shaped supporting strips 12 are arranged in opposite directions, and the arc-shaped supporting strips 12 are embedded into the side wall of the plastic plate layer 10.

The surface of the plastic plate layer 10 on the side wall plate 4 has a concave area 101, and the convex part 11 is disposed in the concave area 101.

The shape of the convex part 11 is triangle, and the metal base plate 2 is an aluminum base plate.

The arc-shaped supporting strips 12 are arranged on one side, far away from the positioning cylinder, of the inner side wall of the strip-shaped through hole 8.

Example 2: a centrifugal fan frame device comprising: the air conditioner comprises a metal bottom plate 2 and a side wall plate 4 positioned at the edge of the metal bottom plate 2, wherein an air outlet gap 5 is formed in one side of the side wall plate 4, and a positioning cylinder 7 is arranged in the center of the metal bottom plate 2;

The projection 11 is triangular in shape.

When the centrifugal fan frame body device is adopted, the whole weight of the axis fan is reduced, and the noise generated when gas enters the impeller along the axial direction from the air inlet under the pressure difference and then is discharged out of the impeller along the radial direction is also reduced, so that the comfort is brought to a user; in addition, the upper surface of the plastic board layer provided with the convex part is provided with a concave area, so that the integral air output of the fan is further improved, and the heat dissipation performance is improved; in addition, a plurality of pairs of arc-shaped branches are arranged on the inner side wall of the strip-shaped through hole of the metal base plate at intervals, 2 arc-shaped branches in each pair of arc-shaped branches are oppositely arranged, the arc-shaped branches are embedded into the side wall of the plastic plate layer, the overall weight of the axis fan is reduced, the bonding strength of the metal base plate and the plastic plate layer is also improved, and therefore the reliability and the service life of the fan are improved.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable one skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present patent shall be covered by the protection scope of the present patent.

Claims

1. A centrifugal fan frame device, characterized in that: the method comprises the following steps: the air conditioner comprises a metal bottom plate (2) and a side wall plate (4) positioned at the edge of the metal bottom plate (2), wherein an air outlet notch (5) is formed in one side of the side wall plate (4), and a positioning cylinder (7) is arranged in the center of the metal bottom plate (2);

a plurality of lower air inlets (1) are formed in the periphery of the positioning cylinder (7) of the metal bottom plate (2) at intervals along the circumferential direction, and a plurality of strip-shaped through holes (8) are formed in the area between the lower air inlets (1) of the metal bottom plate (2) and the side wall plate (4);

a reinforcing rib (9) is arranged between the adjacent strip-shaped through holes (8), the strip-shaped through holes (8) cover a plastic rubber plate layer (10), and a plurality of convex parts (11) protruding outwards are arranged on the surface of the plastic rubber plate layer (10) opposite to the impeller (3) at intervals; the strip through hole (8) inside wall of metal bottom plate (2) is provided with a plurality of pairs of arc branches (12) at interval, and every 2 arc branches (12) are in opposite directions setting in every pair of arc branches (12), and this arc branch (12) imbeds in the lateral wall of plastic sheet layer (10).

2. The centrifugal fan frame device of claim 1, wherein: the surface of the plastic plate layer (10) on one side of the side wall plate (4) is provided with a depressed area (101), and the raised part (11) is arranged in the depressed area (101).

3. The centrifugal fan frame device according to any one of claims 1 to 2, wherein: the shape of the convex part (11) is triangular.

4. The centrifugal fan frame device of claim 1, wherein: the arc-shaped supporting strips (12) are arranged on one side, far away from the positioning cylinder, of the inner side wall of the strip-shaped through hole (8).

5. The centrifugal fan frame device of claim 1, wherein: the metal bottom plate (2) is an aluminum bottom plate.