Combined fan

A combination and fan technology, which is applied to non-variable pumps, components of pumping devices for elastic fluids, pump devices, etc., can solve problems such as flow field interference, noise value increase, and noise excitation

Active Publication Date: 2009-08-05
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, no matter whether it is directly locked in the system or a modular structure is formed by using a fan tray, when the two fans 12a, 12b are closely arranged together, it is easy to produce a resonance phenomenon (sympathetic vibration) due to the similar natural vibration frequencies of the two fans 12a and 12b. ), resulting in the generation of noise excitation, and its noise value is also relatively increased
And if two different fans are used, such as making the number of blades of the two fans different and the speeds of the two fans different, although the natural frequencies of the two fans may differ greatly, the resonance phenomenon may be avoided, but the two different fans The fan characteristics of each fan are also different, and it is easy to cause mutual interference of each other's flow fields

Method used

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Effect test

no. 1 example

[0024] Please also refer to Figure 2A and Figure 2B , Figure 2A shows a top view of a combined fan according to a first embodiment of the present invention, and Figure 2B show Figure 2B Bottom view of the combined fan. Here, it should be noted that, for the convenience of explanation, this embodiment only takes two fans as an example, but this embodiment is not limited to this, users can connect more than three fans in parallel according to their needs. Can. In this embodiment, the combined fan 20 includes at least two fans 22a, 22b. The fan 22a is, for example, an axial fan, including a frame 23a, a motor base 24a, an impeller 25a, and at least one flow guide assembly 26a.

[0025] The frame 23a has an opening, and the openings form an air inlet and an air outlet at two ends of the frame. The motor base 24a is disposed in the opening, and can be disposed at the air inlet or the air outlet according to the needs of the user. In this embodiment, the motor base 24a is...

no. 2 example

[0030] Please also refer to Figure 3A and Figure 3B , Figure 3A shows a top view of a combined fan according to a second embodiment of the present invention, and Figure 3B show Figure 3B Bottom view of the combined fan. The combined fan 30 includes at least two fans 32 a, 32 b and a fan tray 34 . Here, it should be noted that, for the convenience of explanation, this embodiment only takes two fans as an example, but this embodiment is not limited to this, users can connect more than three fans in parallel according to their needs. Can.

[0031] The main features of the two fans 32a, 32b in this embodiment are similar to the fans 22a, 22b in the first embodiment. The fan 32a and the fan 32b are two very similar fans. The frame, the motor base, and the impeller used in it, and the number of blades on the impeller are the same, and the main difference between the two is that the number of the flow guide assembly 36a is different from the number of the flow guide assemb...

no. 3 example

[0036] Please also refer to Figure 4A and Figure 4B , Figure 4A shows a top view of a combined fan according to a third embodiment of the present invention, and Figure 4B show Figure 4A Bottom view of the combined fan. Here, it should be noted that, for the convenience of description, this embodiment only takes two fans 42a, 42b as an example, but this embodiment is not limited to this, and users can connect more than three fans in parallel at the same time depending on their needs. A fan is also available.

[0037] In this embodiment, the combined fan 40 includes a frame body 43, motor bases 44a, 44b, and impellers 45a, 45b to form two fans 42a, 42b. The frame body 43 is integrally formed and has a plurality of openings for forming an air outlet and an air inlet respectively in the frame body 43 . The motor bases 44a, 44b are respectively arranged in the openings, and can be installed at the air inlet or the air outlet according to the needs of the user. In this em...

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Abstract

A combined fan at least includes a first fan and a second fan. The first fan includes a first frame, a first motor base, and a first impeller. The first impeller is set on the first motor base, the first frame body has a first opening, and the first motor base is set in the first opening, and the first motor base is equipped with a plurality of first flow guiding components Connect with the first frame. The second fan includes a second frame, a second motor base, and a second impeller. The second motor base is connected with the second frame body through a plurality of second flow guiding components. Wherein, the first fan and the second fan are arranged in parallel, and the number of the first flow guide components is different from that of the second flow guide components. The invention takes into account the characteristics of the whole fan, and can avoid the resonance phenomenon between two adjacent fans at the same time.

Description

technical field [0001] The present invention relates to a fan, in particular to a combined fan. Background technique [0002] Fans are mostly used for heat dissipation. For example, general electronic equipment needs to use fans to dissipate heat. Most general electronic equipment only needs one fan, but for some electronic equipment with long, wide or flat shape, such as large server (server), communication equipment (telecom), large router (router), etc., if a single The use of one fan can only achieve partial heat dissipation, but cannot achieve comprehensive heat dissipation. Therefore, in the design, multiple fans will be combined in response to changes in the shape of the system to improve the heat dissipation effect. [0003] Please refer to Figure 1A , which shows a schematic diagram of a known combined fan. The combined fan can be combined by more than two fans. Figure 1A Among them, only two fans 12a, 12b are taken as an example. Each of the fans 12a and 12b i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D25/16F04D29/66F04D29/64
Inventor 萧立辉刘金升雷总玙黄文喜
Owner DELTA ELECTRONICS INC
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