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fan unit

A fan and fan wheel technology, applied in the field of fan devices, can solve problems such as corrosion of the motor, affecting the normal working life of the motor, etc.

Active Publication Date: 2016-05-11
JOHNSON ELECTRIC SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this kind of fan device is working, external sundries, such as splashed water droplets, dirt, etc., easily enter the hub, corrode the motor, and affect the normal operation and even the service life of the motor.

Method used

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Embodiment Construction

[0021] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings.

[0022] figure 1 Shown is a fan unit 1 according to an embodiment of the invention. The fan device 1 is used in a heat sink, such as a heat sink for an internal combustion engine of an automobile.

[0023] The fan device 1 includes a fixing frame 2 and a fan 6 mounted on the fixing frame 2 . The fan 6 includes a fan wheel 7 and a motor 8 driving the fan wheel 7 . The motor 8 is fixed on the fixing frame 2 , so that the fan 6 is assembled on the fixing frame 2 .

[0024] The fixing frame 2 includes a base 5 at the center, a frame 18 surrounding the base 5 and spaced from the base 5 , and a plurality of ribs 4 connected between the base 5 and the frame 18 . The frame body 18 is roughly in the shape of a hollow plate with a through hole 19 fo...

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PUM

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Abstract

The invention provides a fan device, which includes a fixed frame, a motor installed on the fixed frame, and a fan wheel driven by the motor. A blade, and a plurality of second blades located in the hub, the motor is accommodated in the hub, the motor is spaced from the radially inner circumference of the hub, and it is characterized in that: the fixing frame is provided with at least A first arc-shaped protrusion protrudes into the hub of the fan wheel, and the first arc-shaped protrusion is located between the motor and the radially inner periphery of the hub. The inner and outer sides of the hub form a labyrinth structure, which can effectively prevent external debris such as water droplets and dirt from entering the hub from the outside of the hub, interfering with the normal operation of the motor or eroding the motor.

Description

technical field [0001] The invention relates to a cooling device, in particular to a fan device. Background technique [0002] Fan devices are widely used in radiators for dissipating heat from heat-generating components such as car engines. An existing fan device includes a motor fixed on a fixed frame and a fan wheel connected with the motor shaft. The fixing frame is roughly flat, and the motor is installed in the center of the fixing frame. The fan wheel includes a cylindrical hub and several fan blades extending outward from the hub. The motor is accommodated in the hub. However, when this kind of fan device is working, external sundries, such as splashed water droplets, dirt, etc., easily enter into the hub, corrode the motor, and affect the normal operation and even the service life of the motor. [0003] Therefore, need a kind of scheme that can overcome above-mentioned defect. Contents of the invention [0004] One aspect of the present invention provides a f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/38F04D29/52
CPCB60K11/04F01P5/02F01P2070/50F04D25/082F28D2021/0094F28F9/002B60K11/02F04D29/5806F04D25/064F04D25/0646
Inventor 菲尔狄皮瓦特
Owner JOHNSON ELECTRIC SHENZHEN
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