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Blower fan and electronic device

A technology of air supply fan and air supply port, which is applied in the direction of mechanical equipment, cooling/ventilation/heating transformation, and components of pumping devices for elastic fluids, etc., which can solve the difficulties of miniaturization, thinning, and inability to ensure thinning Air volume and other issues, to ensure the effect of air volume

Inactive Publication Date: 2015-01-21
NIDEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the outer rotor type blower fan, the size of the rotating part is enlarged, making it difficult to reduce the size
On the other hand, if an inner rotor type is used for downsizing, many components of the motor part overlap in the axial direction, making it difficult to reduce the thickness
As a result, air volume cannot be secured while achieving thinness

Method used

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  • Blower fan and electronic device
  • Blower fan and electronic device
  • Blower fan and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In this manual, the figure 1 The upper side in the direction of the central axis J1 of the blower fan 1 is simply referred to as "upper side", and the lower side is simply referred to as "lower side". The up-down direction in this manual does not mean the up-down direction when assembled to the actual device. In addition, the circumferential direction around the central axis J1 is simply referred to as "circumferential direction", and the radial direction around the central axis J1 is simply referred to as "radial direction". The direction parallel to the central axis J1 is simply referred to as "axial direction".

[0038] figure 1 It is a vertical cross-sectional view of the blower fan 1 according to the first embodiment shown in the present invention. The blower fan 1 is a centrifugal fan. The blower fan 1 is installed in, for example, a notebook personal computer, and is used to cool the equipment inside the casing of the computer.

[0039] The blower fan 1 incl...

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PUM

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Abstract

The invention relates to a blower fan and an electronic device. The blower fan is a centrifugal fan. At least a portion of each of a plurality of blades of an impeller portion is arranged above a stator. A lower plate portion, together with a side wall part and a top plate part, is arranged to define an air channel portion and an air outlet arranged on a lateral side of the impeller portion when the side wall portion arranged to surround an outer circumference of the impeller portion and the upper plate portion arranged above the impeller portion are present. The air channel portion is arranged to extend in a circumferential direction between an outer circumference of the stator and the side wall portion. At least a portion of a circuit board is arranged in the air channel portion and on the lower plate portion. A plurality of lead wires extending from the stator are connected to the circuit board in the air channel portion.

Description

technical field [0001] The invention relates to an inner rotor type blower fan. Background technique [0002] In recent years, electronic devices such as notebook PCs and desktop PCs are becoming thinner. Moreover, with the development of high performance, the problem of heat generation in electronic equipment has become prominent. A large number of electronic components are arranged in a thin electronic device, and the space occupied by air is very little. Therefore, even when the elements in the electronic device generate little heat, the temperature rise in the electronic device may not be ignored. Therefore, for the purpose of cooling the inside of the electronic device, the blower fan is arranged in the electronic device. [0003] In thin electronic equipment, a centrifugal fan is disposed as a blower fan. Moreover, the air supply fan is required to reach a certain level of air volume. As such an air blower fan, it discloses, for example in Unexamined-Japanese-Pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/58
CPCF04D29/281F04D29/582H05K7/20
Inventor 玉冈健人平野宏明
Owner NIDEC CORP