CN201027705Y - Flow guiding structure for fan frame - Google Patents

Abstract

The utility model discloses a guide structure for a fan frame and relates to a radiating fan. The utility model is provided to reduce the noise of the guide structure of the fan frame and to achieve smooth air flow discharge, comprising a fan which comprises a rotator, spaced fan leaves arranged along the periphery of the rotator and a frame body for the rotator to be pivoted and positioned on, wherein, the frame body is bounded and formed with a guide ring edge corresponding to an expanded guide panel arranged on the side in the direction of discharged wind; the guide panel is provided with spaced guide fins. With the spaced guide fins arranged on the guide panel, the utility ensures that the radiated air flow generated in the process of the rotation of the fan is smoothly guided into discharged airflow in the direction of the axis of the rotator by means of the spaced guide fins arranged on the guide panel, which effectively reduces the impact and friction of the rotating airflow generated by the fan leaves on the guide panel of the frame body, thereby the noise is reduced, the air flow is discharged smoothly and the radiation effect of the fan is improved.

Description

Fan frame flow guide structure

Technical field

The utility model relates to a kind of radiation fan, relates in particular to its fan frame flow guide structure.

Background technique

In the cooling fan structure, except flabellum, rotor and stator, no less important promptly be its framework position, it can set the belfry of position and guide functions so that aforementioned flabellum, rotor and the stator group of relying to be provided by this framework.

The framework of existing radiation fan is typically provided with an inner circle wall and is surrounded on the flabellum periphery, and the shape air-flow enforced guiding that revolves that is produced when using this flabellum rotation is the axial discharge of respective rotor (or suction) air-flow; In this operation, when the rotation of this flabellum, produced revolve this framework inner circle wall of shape airflow strikes the time, because it is too rapid that the path direction of air-flow changes, will produce bigger noise content when therefore its air-flow rubs framework inner circle wall, because in the present computer main of producing, the radiation fan quantity of its required assembling increases gradually, to adapt to big radiating requirements, therefore, if the heat radiation of single group of radiation fan running promptly produces excessive noise content, when then many group radiation fans operate simultaneously, its noise content more will double, so for the quality that whole juice is calculated machine equipment, will definitely have a greatly reduced quality, and " quiet " present especially Consumer suitable condition paying attention to when choosing computer equipment.

On the other hand, the framework of aforementioned existing radiation fan design, when the flabellum rotation produced revolve this framework inner circle wall of shape airflow strikes the time, be easy to generate backflow phenomenon, and then cause air-flow row to loose to have some setbacks, influence the problem of radiating efficiency.

Therefore,, how to develop a kind of innovation structure that has more desirable practicability, real target and the direction that must make great efforts the research and development breakthrough for relevant dealer at the existing problem points of above-mentioned existing radiation fan framework flow guide structure.

The model utility content

The purpose of this utility model provides a kind of fan frame flow guide structure, with the noise of reduction fan frame water conservancy diversion knot, and makes air-flow row loose more smooth and easy.

For achieving the above object, the utility model by the following technical solutions:

A kind of fan frame flow guide structure, described fan comprise that a rotor and spacer ring be located at the flabellum and the framework for rotor pivot group location of this rotor periphery; Wherein, this framework defines and is formed with a guide ring edge, and a side of air-out direction was provided with the guide face that extends out kenel when the corresponding flabellum of this guide ring edge rotated; On the described guide face and have a fin of leading that is provided with at interval.

Wherein, described guide face is the inclined-plane.

Wherein, described lead fin establish to, for the center of its lamellar body imagination line stretcher the vortex by the rotor center image point to setting.

Wherein, the described fin of leading is straight sheet or arc knee-piece shape.

Compared with prior art, the utility model nationality is led fin by being provided with at interval on this guide face, the row who is produced in the time of can making the rotation of this flabellum loose air-flow by this guide face set lead fin, the smooth and easy axial discharge air-flow of respective rotor that is directed to, effectively subtract and fall impact and the friction that swirling eddy that flabellum produces is produced the framework guide face, and then can reach the reduction noise and make air-flow row loose more smooth and easy, promote the fan heat dissipation.

Description of drawings

Fig. 1 is the stereogram of the utility model cooling fan structure.

Fig. 2 is a sectional perspective enlarged view of the present utility model.

Fig. 3 is the planimetric map of the utility model cooling fan structure.

Fig. 4 is partial structurtes plan cross-section of the present utility model and water conservancy diversion view.

Fig. 5 is another enforcement illustration of fin kenel of leading of the present utility model.

Embodiment

Describe the utility model in detail below in conjunction with the drawings and specific embodiments.

Shown in Fig. 1,2,3,4, be the preferred embodiment of the utility model fan frame flow guide structure, only these embodiments only for explanation usefulness, are not subjected to this structural limitations in patent application.

Described fan A comprises that a rotor 10 and spacer ring be located at the flabellum 11 of these rotor 10 peripheries and a framework 20 for this rotor 10 pivot groups location; Wherein, this framework 20 also defines and is formed with a guide ring edge 21, this side of air-out direction and be provided with the guide face 22 that extends out kenel during corresponding flabellums 11 rotations of this guide ring edge 21; On this described guide face 22 and have be provided with at interval lead fin 23.

Wherein, described guide face 22 can be the inclined-plane kenel; So, the described fin 23 of respectively leading is when provided thereon, its side direction aspect triangular in shape.

Wherein, described lead fin 23 establish to, as shown in Figure 3, the center imagination line stretcher L that can be its lamellar body not the vortex by this rotor 10 center image point C to kenel is set.

Again wherein, the described fin 23 of leading can be straight sheet (as Fig. 1～shown in Figure 3), or as shown in Figure 5 lead fin 23B, it is set as arc knee-piece shape kenel.

By said structure, composition design, in the fan A use that the utility model disclosed, as shown in Figure 4, this rotor 10 turns round and drives the swirling eddy W1 that flabellum 11 rotations are produced, when it touches the guide ring edge 21 of framework 20, can make the smooth and easy discharge air-flow W2 that is transformed into respective rotor 10 axial (as the L2 indication line orientations of Fig. 4) of this swirling eddy W1 by set guide function of leading fin 23 on this guide face 22.

The fan frame flow guide structure that the utility model disclosed, mainly lead the innovation unique design of fin 23 by on this guide face 22, being provided with at interval, the row who is produced in the time of can making the rotation of this flabellum loose air-flow can by this guide face 22 set lead fin 23, the smooth and easy axial discharge air-flow of respective rotor 10 that is directed to, impact and friction that effective swirling eddy that reduces the flabellum generation is produced the framework guide face, and then can reach the reduction noise and make air-flow row loose more smooth and easy, promote the practical improvement of fan heat dissipation.

Using that the foregoing description disclosed specifies the utility model, though and describe through specific term in the literary composition, when not limiting the novel claim of this novel practical with this; The personage who is familiar with this technical field reaches equivalent purpose when changing and revise it after understanding spirit of the present utility model and principle, and these changes and modification all should be covered by described claim and define in the category.

Claims (4)

1. fan frame flow guide structure, described fan comprise that a rotor and spacer ring be located at the flabellum and the framework for rotor pivot group location of this rotor periphery; Wherein, this framework defines and is formed with a guide ring edge, and a side of air-out direction was provided with the guide face that extends out kenel when the corresponding flabellum of this guide ring edge rotated; It is characterized in that:

Has the fin of leading that is provided with at interval on the described guide face.

2. fan frame flow guide structure according to claim 1 is characterized in that: described guide face is the inclined-plane.

3. fan frame flow guide structure according to claim 1 is characterized in that: described lead fin establish to, for the center of its lamellar body imagination line stretcher the vortex by the rotor center image point to setting.

4. fan frame flow guide structure according to claim 1 is characterized in that: the described fin of leading is straight sheet or arc knee-piece shape.

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