KR20170030273A

KR20170030273A - Fan module for electronic component

Info

Publication number: KR20170030273A
Application number: KR1020150127627A
Authority: KR
Inventors: 천장성; 김정희; 채진원; 김면수
Original assignee: 주식회사 티에스에이; (주)타마스
Priority date: 2015-09-09
Filing date: 2015-09-09
Publication date: 2017-03-17

Abstract

A fan module for an electronic component includes a first fan, a drive unit for providing a rotational force for rotating the first fan, a planetary gear unit for turning the rotational force by the drive unit in the opposite direction, And a second fan disposed coaxially with the first fan and connected to the planetary gear unit and rotated by the planetary gear unit in the opposite direction to the first fan, thereby simplifying the structure, reducing power consumption, and providing ease of control can do.

Description

FAN MODULE FOR ELECTRONIC COMPONENT

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan module for an electronic component, and more particularly to a fan module for a coaxial inverted structure in which two coaxially arranged fans rotate in opposite directions.

BACKGROUND ART [0002] Generally, among electronic components mounted inside an electronic product, there are parts that generate heat during operation. For example, among the components mounted inside the computer, there are components that generate heat during operation, such as a chipset mounted on a substrate of a central processing unit (CPU) or a graphic adapter.

In such a heat generating component, a lot of heat is generated during operation. If the heat can not be effectively cooled, the temperature of the heat generating component may exceed the proper temperature, resulting in a malfunction of the heat generating component or, in severe cases, the component itself may be damaged.

Furthermore, with the rapid development of science and technology, various heat generating parts mounted in a computer are gradually becoming highly integrated and high-capacity, and the amount of heat generated per unit volume is further increased. Therefore, a cooling device capable of adequately and effectively cooling heat generated from the heat generating component has become necessary.

In accordance with this demand, various attempts have been made to dissipate heat from the heat generating parts to the outside as quickly as possible. For example, in the past, two fans are arranged coaxially so that the two fans can be rotated in different directions, thereby improving the cavitation performance of the fan, reducing operating noise and size, improving airflow efficiency, A counter rotating fan has been proposed to reduce noise and vibration.

However, in the case of the conventional coaxial inverting fan, since the two fans are configured to be driven by different motors, the structure is complicated, power consumption is large, control is complicated, and it is difficult to make the device compact .

Accordingly, in recent years, a variety of studies have been made to simplify the structure and control of the coaxial inverting fan and to manufacture the coaxial inverting fan in a compact size, but it is still insufficient and development thereof is required.

It is an object of the present invention to provide a fan module for electronic parts which can simplify the structure, can reduce the power consumption, and can provide ease of control.

Particularly, it is an object of the present invention to provide a fan module for an electronic part by using a planetary gear unit so that two fans can be rotated in a coaxial inverted structure by a driving force of a single motor.

It is another object of the present invention to provide a fan module for an electronic part which can reduce drive noise, contribute to downsizing of the device, and improve the degree of freedom in design.

According to another aspect of the present invention, there is provided a fan module for an electronic component, including a first fan, a driving unit for providing a rotational force for rotating the first fan, And a second fan disposed coaxially with the first fan and connected to the planetary gear unit and rotating in the opposite direction to the first fan by the planetary gear unit. With this configuration, the structure can be simplified, power consumption can be lowered, and ease of control can be provided.

For reference, the electronic component in the present invention may include electronic components such as a server, a storage, a communication device, a power source, a computer, and the like, as well as electronic components mounted in various facilities such as a heat exchanger. The present invention is not limited to or limited by the characteristics.

The structure and characteristics of the first fan and the second fan can be variously changed according to required conditions and design specifications, and the present invention is not limited or limited by the structure and characteristics of the first fan and the second fan.

As the driving unit, various motors or driving means capable of providing a rotational force for rotating the first fan can be used. In one example, the driving portion may include a stator provided on the rotating shaft, and a rotor provided rotatably on the outer side of the stator and connected to the first fan and connected to the rotating shaft. More specifically, the stator may include a stator support on which the rotary shaft is rotatably mounted, and a coil provided on the stator support. The rotor further includes a magnet disposed outside the coil, a rotor support connected to the first fan and rotated together with the magnet by mutual electromagnetic action between the coil and the magnet, and a shaft connection extending from the rotor support and connected to the rotary shaft .

The planetary gear unit can be configured to switch the rotational force of the driving unit in the opposite direction in various ways according to the required conditions and design specifications. In one example, the planetary gear unit may include a sun gear connected to a rotating shaft that is rotated by a driving unit and rotated with the rotating shaft, and a plurality of planetary gears connected to the second fan and rotating in a direction opposite to the sun gear, have.

Further, the first fan and the second fan, which rotate in different directions, can rotate at different speeds. The rotational speed of the second fan with respect to the first fan is adjusted by changing the gear ratio between the sun gear and the planetary gear It is possible.

As described above, according to the present invention, it is possible to simplify the structure and contribute to miniaturization of the device.

Particularly, according to the present invention, since the two fans can be rotated in the coaxial inverted structure by using the single drive unit and the planetary gear unit, the structure can be simplified and the apparatus can be made smaller.

In addition, according to the present invention, since two fans can be simultaneously rotated in opposite directions by a single motor, driving noise and power consumption can be reduced, and control can be facilitated.

1 is a view showing a fan module for an electronic part according to the present invention,
FIG. 2 and FIG. 3 are views for explaining the structure and the connection structure of the planetary gear unit, according to the present invention,
4 is a view for explaining an operating structure of a fan module for an electronic part according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

FIG. 1 is a view showing a fan module for an electronic part according to the present invention, and FIGS. 2 and 3 are views for explaining a structure and a connection structure of a planetary gear unit as a fan module for an electronic part according to the present invention, 4 is a view for explaining an operating structure of a fan module for an electronic part according to the present invention.

As shown in these figures, the fan module for an electronic component according to the present invention includes a first fan 210, a driving unit, a planetary gear unit 300, and a second fan 220.

The first fan 210 is disposed on an inlet side of the fan housing 10 and is rotatably provided on a rotary shaft 101 disposed inside the fan housing 10. In addition, the number and characteristics of the blades of the first fan 210 can be variously changed according to required conditions and design specifications.

The driving unit is configured to provide a rotational force for rotating the first fan 210 in one direction (for example, counterclockwise).

As the driving unit, various motors or driving means capable of providing a rotational force for rotating the first fan 210 may be used. The driving unit may include a stator 110 provided on the rotating shaft 101 and a first fan 210 rotatably provided on the outer side of the stator 110 and connected to the rotating shaft 101 And a rotor 120 that rotates the rotor 120.

The stator 110 is provided on a rotating shaft 101 disposed inside the fan housing 10 and is configured to rotate the rotor 120 by mutual electromagnetic interaction with the rotor 120 described below.

The stator 110 may be provided in various structures according to required conditions and design specifications. In one example, the stator 110 may include a stator support 112 on which the rotary shaft 101 is rotatably mounted, and a coil 114 provided on the stator support 112.

Further, a normal bearing member may be provided between the stator support 112 and the rotary shaft 101, and the rotary shaft 101 is configured to rotate with respect to the stator support 112.

The rotor 120 is rotatably provided on the outer side of the stator 110 by a conventional outer rotor method and rotates on one side of the rotor 120 so that the rotating shaft 101 can rotate together with the rotor 120. [ And is connected to the shaft 101. In one example, the rotor 120 may include a magnet 122, a rotor support 124, and a shaft connection 124a.

The magnet 122 is disposed outside the coil 114 so as to face the coil 114 and the number and characteristics of the magnet 122 may be appropriately changed according to characteristics of the coil 114.

The magnet 122 may be mounted on the rotor support 124 and maintained in a state where the rotor support 124 supports the magnet 122 and the magnet 122 by mutual electromagnetic action between the coil 114 and the magnet 122. [ The first fan 210 connected to the rotor support 124 may also rotate with the rotor support 124 when the rotor support 124 rotates.

The shaft connecting portion 124a extends from the rotor support 124 and is connected to the rotary shaft 101. The rotary shaft 101 may also rotate in the same direction when the rotor support 124 rotates.

The planetary gear unit 300 is configured to switch the rotational force of the driving unit in the opposite direction and the second fan 220 to be described later is configured to rotate in a direction opposite to the first fan 210 by the planetary gear unit 300 .

The planetary gear unit 300 may be configured to switch the rotational force of the driving unit in the opposite direction in various manners according to required conditions and design specifications. The planetary gear unit 300 includes a sun gear 310 connected to the rotary shaft 101 and rotating together with the rotary shaft 101 and a sun gear 310 connected to the second fan 220, And a plurality of planetary gears 320 rotating in a direction opposite to the engagement planetary gear 310.

The planetary gear 320 may be provided with a sun gear 310 and a ring gear 330. The planetary gear 320 may be provided with a ring gear 330 for guiding the rotation of the planetary gear 320, And can rotate in the direction opposite to the sun gear 310 while being engaged with each other.

The second fan 220 is disposed on the outlet side of the fan housing 10 so as to be coaxially disposed with the first fan 210. The second fan 220 is connected to the planetary gear unit 300 by the planetary gear unit 300 And is configured to rotate in a direction opposite to the first fan 210 (e.g., clockwise).

The number and characteristics of the blades of the second fan 220 may be variously changed according to the required conditions and design specifications. Due to the difference in characteristics between the first fan 210 and the second fan 220, Or < / RTI >

The first fan 210 connected to the rotor support body 124 is rotated in the counterclockwise direction due to the mutual electromagnetic action between the coil 114 and the magnet 122, Thereby rotating in the counterclockwise direction. At the same time, the rotary shaft connected to the rotor support body 124 can also rotate counterclockwise. As the sun gear 310 connected to the rotary shaft rotates counterclockwise, the planetary gear 320 rotates clockwise, The second fan 220 connected to the planetary gear 320 can be rotated clockwise. For reference, the output of the planetary gear 320 may be connected to the second fan 220 in a single output stage configuration (see FIGS. 3 and 4)

In addition, the first fan 210 and the second fan 220, which rotate in different directions as described above, can rotate at different speeds, and the second fan 220 for the first fan 210 The rotational speed can be adjusted by changing the gear ratio between the sun gear 310 and the planetary gear 320. [

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. It will be understood that the present invention can be changed.

110: stator 120: rotor
210: first fan 220: second fan
300: planetary gear unit 310: sun gear
320: planetary gear

Claims

A fan module for an electronic component,
A first fan;
A driving unit for providing a rotational force for rotating the first fan;
A planetary gear unit for switching the rotational force of the driving unit in the opposite direction; And
A second fan disposed coaxially with the first fan and connected to the planetary gear unit, the second fan rotating in a direction opposite to the first fan by the planetary gear unit;
Wherein the fan module comprises:

The method according to claim 1,
The planetary gear unit includes:
A sun gear connected to a rotating shaft rotated by the driving unit and rotating together with the rotating shaft; And
A planetary gear coupled to the second fan and rotated in a direction opposite to the sun gear in engagement with the sun gear;
Wherein the fan module comprises:

3. The method of claim 2,
The driving unit includes:
A stator provided on the rotating shaft; And
A rotor rotatably provided outside the stator and connected to the first fan and connected to the rotating shaft;
Wherein the fan module comprises:

The method of claim 3,
The stator includes:
A stator support on which the rotating shaft is rotatably mounted, and a coil provided on the stator support,
The rotor may include:
A rotor disposed on the outside of the coil, a rotor support connected to the first fan and rotated together with the magnet by mutual electromagnetic action between the coil and the magnet, and a rotor support extending from the rotor support, And a shaft connection portion.

The method according to claim 1,
Wherein the first fan and the second fan are rotated at different rotational speeds.