CN201382019Y

CN201382019Y - Diversion fan blade

Info

Publication number: CN201382019Y
Application number: CN200920006733U
Authority: CN
Inventors: 陈纪安
Original assignee: Ritz German Co; LEESTON Co Ltd
Current assignee: Ritz German Co; LEESTON Co Ltd
Priority date: 2009-03-11
Filing date: 2009-03-11
Publication date: 2010-01-13
Anticipated expiration: 2019-03-11

Abstract

The utility model relates to a diversion fan blade, which can improve the deficiencies that when a fan works, the blade has friction against the air, produces noise and affects the radiation effect; the diversion fan blade is arranged in the fan, and is provided with an axis part and a plurality of vanes arranged on the axis part; each vane is provided with a first end surface and a second end surface; and the first end surface and the second end surface are respectively provided with a plurality of first diversion parts and a plurality of second diversion parts, and the first diversion parts and the second diversion parts are asymmetrically arranged in intervals, so that the air can form stable airflow between the adjacent vanes under the guidance of the first diversion parts and the second diversion parts, thereby not only reducing the operation noise of the fan blade, but also improving the radiating effect of the fan.

Description

The water conservancy diversion flabellum

Technical field

The utility model relates to a kind of blower module and water conservancy diversion flabellum thereof, refers to that especially a kind of steady air flow is to promote radiating effect and to reduce the blower module and the water conservancy diversion flabellum thereof of running noise.

Background technique

Electronic equipment can be found everywhere in life and working environment, electronic equipment uses many different electronic components to reach various purposes with connection, and electronic component easily produces heat when calculation process and cause the reduction of efficient, even shut down, therefore, the user is installed radiator usually additional on the electronic component of these heatings or near it, the heat that is produced with the running of these electronic components the time is taken away fast and is reduced the operating temperature of electronic component, reaches the purpose of heat radiation and guarantees the electronic component normal operation.The dealer is for promoting the radiating efficiency of radiation fan, mostly set about from changing modes such as flabellum and fan frame structure or increase rotation speed of the fan, in the hope of increasing air output and air output, promote radiating efficiency whereby, be accompanied by the result that air quantity increases and rotation speed of the fan promotes, cause fan in the running, a large amount of air and flabellum collide rapidly, rub, and produce the running noise that wind is cut sound, therefore influence the radiating effect of fan.

Because the problems referred to above, existing at present relevant improvement technology shown in TaiWan, China No. 590272, No. 595661, Chinese CN1590778 patent case, all discloses the water conservancy diversion framework that is formed for guiding air flows on flabellum; Wherein, No. 590272 patent cases disclose a kind of structure improvement of radiation fan, the outer rim circular row is shown a plurality of flabellums in the axle center of fan, and convex with a plurality of fins in the flabellum bottom surface towards the axle center bending, when the fan turn, can make flabellum produce the cooling air that blows downwards, and the fin by flabellum bottom imports the below in axle center with cooling air, avoided the Fan axial center below to cause sinuous flow and produce noise, and can increase the efficient of dispelling the heat.

And No. 595661 patent cases disclose a kind of flabellum structure-improved of ventilating fan, in flabellum central authorities axle sleeve is set, and some blades are set outside axle sleeve, and have suitable gap between each blade; At the inboard corresponding blade rotation direction evagination of blade the water conservancy diversion protuberance is set again, and between protuberance, forms diversion division, and inner fovea part is set in the corresponding water conservancy diversion direction of blade side position; Air can compile the inner fovea part position of air flow guiding to blade along diversion division when making the blade rotation, derive by the gap between inner fovea part and each blade again, stablize water conservancy diversion whereby to reduce the impact noise of air and blade, and the air that this inner fovea part can be convenient to the blade water conservancy diversion is derived rapidly, ventilation efficiency can be promoted, and noise can be reduced.

And CN1590778 patent case discloses a kind of axial fan, on the pressure side of fan blade, in the scope of the trailing edge of fan blade, form the fan blade rib parallel from the leading edge of axial fan, form water conservancy diversion by rib when making blade movement with the fan blade rotating locus.

The something in common of above-mentioned each patent case is that the water conservancy diversion framework of fan all is arranged at the bottom surface (being outlet air surface) of blade, forms air-flow so as to guiding gas.But in fact during fan running, the mobile of air is the end face (being the inlet air face) that collides a blade of fan earlier, rotate the bottom surface that collides adjacent blades because of fan then, above-mentioned patent case only is provided with the water conservancy diversion framework in the blade bottom surface, air between two adjacent blades is only guided with the bottom surface of one of them blade, cause the vane stress inequality, not only can't effectively improve the problem of running noise, also reduce the effect of heat radiation because of fan water conservancy diversion poor effect.

The model utility content

Main purpose of the present utility model is to solve the above problems, and makes the blade both sides of fan all be formed with the water conservancy diversion framework, to increase the water conservancy diversion effect and to reduce the noise that fan running is produced.

For achieving the above object, the utility model proposes a kind of blower module and water conservancy diversion flabellum thereof, it comprises a fan frame and a water conservancy diversion flabellum, wherein, this fan frame is provided with a wind inlet and an exhaust outlet, and between this wind inlet and this exhaust outlet, form an assembling space, so that this water conservancy diversion flabellum to be set, and a plurality of blades that this water conservancy diversion flabellum has an axis central part and is located at this axis central part, these blades have one first end face and one second end face separately, and a plurality of first diversion divisions and a plurality of second diversion division be set respectively on first end face and second end face, and first diversion division and second diversion division asymmetricly are provided with at interval, thus, the air between two adjacent blades on this water conservancy diversion flabellum can form stable air-flow by a plurality of second diversion divisions guiding of a plurality of first diversion divisions of one of them blade and another blade.

As known from the above, the utility model is compared to the beneficial effect that known technology reaches, and promotes the fan radiating effect and reduces running noise.

Description of drawings

Fig. 1 is a schematic appearance of the present utility model;

Fig. 2 is a STRUCTURE DECOMPOSITION schematic representation of the present utility model;

Fig. 3-1 is the partial cutaway schematic of first embodiment's of the present utility model water conservancy diversion flabellum;

Fig. 3-2 is the local enlarged diagram of Fig. 3-1;

Fig. 4 is the part section enlarged diagram of second embodiment's of the present utility model water conservancy diversion flabellum;

Fig. 5 is the plan view of water conservancy diversion flabellum of the present utility model;

Fig. 6 is a gas flow schematic representation of the present utility model.

Embodiment

Relevant detailed description of the present utility model and technology contents now are described as follows with regard to conjunction with figs.:

See also Figure 1 and Figure 2, the utility model is a kind of water conservancy diversion flabellum, this water conservancy diversion flabellum is located in the fan, as axial flow fan or centrifugal fan, this fan comprises that a fan frame 20 and is arranged at the water conservancy diversion flabellum 10 in this fan frame 20, this fan frame 20 has a wind inlet 21 and an exhaust outlet 22, and between this wind inlet 21 and this exhaust outlet 22, form an assembling space 23, and this fan frame 20 is provided with a plurality of ribs 24 and a flabellum seat 25 that connects these ribs 24 in this assembling space 23, with support this water conservancy diversion flabellum 10 is set, and a plurality of blades 12 that this water conservancy diversion flabellum 10 has the axis central part 11 of being located at this flabellum seat 25 and is located at these axis central part 11 peripheries; And please cooperate shown in Fig. 3-1 and Fig. 3-2, the utility model be it should be noted that, these blades 12 have one first end face and one second end face, this first end face is the inlet air face and the wind inlet 21 to fanning frame 20 of this water conservancy diversion flabellum 10, and this second end face is the outlet air surface and the exhaust outlet 22 to fanning frame 20 of this water conservancy diversion flabellum 10, and a plurality of first diversion divisions 121 and a plurality of second diversion divisions 122 are set respectively on first end face and second end face, first diversion division 121 of first end face and second diversion division 122 of second end face asymmetricly are provided with at interval, and in this embodiment, these first diversion divisions 121 are the arcuation groove with these second diversion divisions 122, form air-flow so as to guiding gas, and promote radiating efficiency and reduce running noise, constitute main framework of the present utility model in this way.

These first diversion divisions 121 of the present utility model and these second diversion divisions 122 also can be as shown in Figure 4 except that can being the arcuation groove, these first diversion divisions 121 and these second diversion division, 122 indentation grooves; And first diversion division 121 and second diversion division 122 on each blade 12 of this guide vane 12 are parallel to each other, and as shown in Figure 5, rotating locus according to this water conservancy diversion flabellum 10 is the concentric circle setting, therefore during fan running, gas can be by being parallel to each other and being first diversion division 121 and the stable air-flow of second diversion division, 122 guiding formation of concentric circle configuration; And as shown in Figure 6, when gas is entered by wind inlet 21, can collide first diversion division 121 of water conservancy diversion flabellum 10 earlier, this moment is by 121 guiding of first diversion division, and along with the running of water conservancy diversion flabellum 10, gas is after colliding first diversion division 121, can collide second diversion division 122 of adjacent blades 12 again, be subjected to second diversion division 122 to guide and discharge at last from exhaust outlet 22, therefore, between two adjacent vanes 12, gas can be subjected to the first relative diversion division 121 of two adjacent blades 12 and the guiding of second diversion division 122 to form air-flow simultaneously.

In sum, the utility model mainly is provided with a plurality of first diversion divisions 121 and a plurality of second diversion divisions 122 respectively by this guide vane 12 on first end face and second end face, and first diversion division 121 and second diversion division 122 asymmetricly are provided with at interval, thus, gas on this water conservancy diversion flabellum 10 between the two adjacent blades 12 can form stable air-flow by a plurality of first diversion divisions 121 of one of them blade 12 and a plurality of second diversion division 122 guiding of another blade 12, not only can reduce the noise of flabellum running, can also promote the fan radiating effect.

Above-mentioned is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model, and promptly all equivalences of making according to the content of the utility model claim change and revise, and all are included within the technology category of the present utility model.

Claims

1. water conservancy diversion flabellum is arranged in the fan and has an axis central part (11) and be arranged on a plurality of blades (12) on the described axis central part (11), it is characterized in that,

Described a plurality of blade (12) all has one first end face and one second end face separately, and be respectively arranged with a plurality of first diversion divisions (121) and a plurality of second diversion divisions (122) on described first end face and described second end face, and described first diversion division (121) asymmetricly is provided with at interval with described second diversion division (122).

2. water conservancy diversion flabellum according to claim 1 is characterized in that, described first diversion division (121) on described a plurality of blades (12) and described second diversion division (122) are the concentric circle setting according to the rotating locus of described water conservancy diversion flabellum (10).

3. water conservancy diversion flabellum according to claim 1 is characterized in that, described a plurality of first diversion divisions (121) are parallel to each other with described a plurality of second diversion divisions (122).

4. water conservancy diversion flabellum according to claim 1 is characterized in that, described first diversion division (121) is the arcuation groove with described second diversion division (122).

5. water conservancy diversion flabellum according to claim 1 is characterized in that, described first diversion division (121) is a saw-tooth grooves with described second diversion division (122).

6. water conservancy diversion flabellum according to claim 1 is characterized in that, described first end face and described second end face are respectively the inlet air face and the outlet air surface of described water conservancy diversion flabellum (10).