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Cooling fans, heat sinks and electronic equipment

A technology for cooling fans and electronic equipment, applied in the fields of cooling devices, cooling fans, and electronic equipment, can solve the problems of matching heat source cooling requirements and different cooling efficiency requirements.

Active Publication Date: 2018-06-01
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the heat dissipation efficiency of the heat dissipation fan is relatively stable during the working process, but the heat source components in the electronic equipment have different heat generation values ​​at different time periods, resulting in different requirements for the heat dissipation efficiency of the heat dissipation device for the above heat source components at different time periods, and the heat dissipation device The heat dissipation efficiency of the medium heat dissipation fan is always stable, and it is difficult to match the actual heat dissipation demand of the heat source

Method used

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  • Cooling fans, heat sinks and electronic equipment
  • Cooling fans, heat sinks and electronic equipment
  • Cooling fans, heat sinks and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Please refer to 4-7. For the cooling fan provided in this embodiment, the cover plate 200 is arranged on the housing so as to be able to move along the axial direction of the cooling fan; the axial direction of the cooling fan is a direction perpendicular to the bottom plate 101;

[0057] Correspondingly, when the cover plate 200 is switched from the first use state to the second use state, the cover plate 200 is away from the bottom plate 101 along the axial direction of the cooling fan;

[0058] When the cover plate 200 is switched from the second use state to the first use state, the cover plate 200 approaches the bottom plate 101 along the axial direction of the cooling fan.

[0059] Specifically, in the above-mentioned cooling fan, fins 102 extending in the axial direction of the cooling fan and protruding from the bottom plate 101 are fixed on the casing, and the cover plate 200 is clamped between the above-mentioned fins 102, and can be formed between the fins 102...

Embodiment 2

[0064] In the cooling fan provided in this embodiment, the cover plate 200 is configured to be hinged on the housing;

[0065] Correspondingly, when the cover plate 200 is switched from the first use state to the second use state, the free end of the cover plate 200 is tilted up from the bottom plate 101, and the air inlet 12 is gradually opened;

[0066] When the cover plate 200 is switched from the second use state to the first use state, the free end of the cover plate 200 is attached to the bottom plate 101, and the air inlet 12 is gradually closed.

[0067] In the above fan, the cover plate 200 is set to be manually driven to switch between the two usage states. Specifically, the electronic equipment using the heat dissipation fan includes a first body 1 and a second body 2 hinged to each other through a hinge shaft, and the heat dissipation fan is arranged in the second body 2; the free end of the cover plate 200 needs to fix the manual lever , the lever extends out of ...

Embodiment 3

[0069] see Figure 8-Figure 9 , in the heat dissipation fan provided in this embodiment, the cover plate 200 is arranged on the second body 2 of the electronic equipment to which the heat dissipation fan is applied; the electronic equipment also includes a first body 1, and the first body 1 is hinged on the second On the body 2; when the first body 1 and the second body 2 of the electronic device are closed, the cover 200 is in the first use state; when the first body 1 and the second body 2 are opened, the cover 200 is in the second status of use.

[0070] In the cooling fan provided in this embodiment, the first and second use states of the cover plate 200 are matched with the fastened and opened states of the first body 1 respectively, that is, when the electronic device is in a sleep or non-use state, the cover plate 200 is in the In the first use state, when the electronic device is in use, the cover plate 200 is in the second use state, and the heat dissipation efficien...

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PUM

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Abstract

The invention discloses a cooling fan comprising a shell and a cover plate. The shell is provided with an air inlet. The cover plate has a first service mode and a second service mode. When the cover plate is in the first service mode, the cover plate attaches to the shell and seals the air inlet; when the cover plate is in the second service mode, the cover plate opens the air inlet. The cover plate of the cooling fan has the different service mode; the cover plates being in the different service modes can open or close the air inlet of the shell, so that air intake of the cooling fan is adjusted, cooling efficiency of the cooling fan is changed and matching degree of the cooling efficiency and the demand of a heat source can be improved. The invention further discloses a cooling device comprising the cooling fan; the cooling efficiency of the cooling device meets the actual cooling demand of the heat source. The invention further discloses an electronic device comprising the cooling device; the actual cooling demand of the heat source parts, such as a CPU (central processing unit), can be met.

Description

technical field [0001] The present invention relates to the technical field of machinery industry, more specifically, to a heat dissipation fan, a heat dissipation device, and an electronic device. Background technique [0002] There are various types of heat dissipation devices, and heat dissipation devices currently used in electronic equipment include heat dissipation fans and heat dissipation modules. [0003] In the prior art, the heat dissipation efficiency of the cooling fan is relatively stable during the working process, but the heat source components in the electronic equipment have different heat generation values ​​at different time periods, resulting in different requirements for the heat dissipation efficiency of the heat dissipation device for the above heat source components at different time periods, and the heat dissipation device The heat dissipation efficiency of the middle heat dissipation fan is always stable, and it is difficult to match the actual hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/42F04D27/00H05K7/20G06F1/20
CPCF04D27/023F04D29/4213F04D29/4226G06F1/20H05K7/20145
Inventor 贾自周孙英郭联明那志刚
Owner LENOVO (BEIJING) LTD