KR20170030275A - Fan module for electronic component - Google Patents

Fan module for electronic component Download PDF

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Publication number
KR20170030275A
KR20170030275A KR1020150127629A KR20150127629A KR20170030275A KR 20170030275 A KR20170030275 A KR 20170030275A KR 1020150127629 A KR1020150127629 A KR 1020150127629A KR 20150127629 A KR20150127629 A KR 20150127629A KR 20170030275 A KR20170030275 A KR 20170030275A
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KR
South Korea
Prior art keywords
rotor
fan
magnet
common stator
common
Prior art date
Application number
KR1020150127629A
Other languages
Korean (ko)
Inventor
천장성
김정희
채진원
김면수
Original Assignee
주식회사 티에스에이
(주)타마스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 티에스에이, (주)타마스 filed Critical 주식회사 티에스에이
Priority to KR1020150127629A priority Critical patent/KR20170030275A/en
Publication of KR20170030275A publication Critical patent/KR20170030275A/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20172—Fan mounting or fan specifications
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/024—Multi-stage pumps with contrarotating parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven

Abstract

The present invention relates to a fan module for an electronic component. The fan module for an electronic component includes a first rotor rotating in one direction from the outside of the common stator due to mutual electromagnetic force with the common stator and the common stator, A first rotor rotating by a first rotor and a second rotor rotating coaxially with the first fan and rotating in a direction opposite to the first fan by a second rotor, And a second fan that rotates, so that the structure can be simplified, power consumption can be lowered, and control easiness can be provided.

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 which can rotate two rotors in mutually opposite directions by using a single stator as a common use.

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 a preferred embodiment of the present invention for achieving the objects of the present invention described above, a fan module for an electronic component includes a common stator, a first rotor that rotates in one direction from the outside of the common stator by mutual electromagnetic force with the common stator, A second rotor that rotates in a different direction from the outside of the common stator by mutual electromagnetic force with the common stator, a first fan that rotates by the first rotor, and a second rotor that is coaxially disposed with the first fan, And a second fan rotating in a direction opposite to the first fan. With this configuration, since two different rotors can be rotated by using only one stator in common, the structure can be simplified, power consumption can be lowered, and control can be facilitated.

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 first rotor and the second rotor are configured to rotate in opposite directions using a common stator. The rotation of the first rotor and the second rotor in opposite directions using the common stator may vary depending on the required conditions and design specifications . ≪ / RTI >

In one example, the first rotor and the second rotor may be provided to have different numbers of poles, and the first and second rotors having different numbers of magnet poles may be provided on the mutual electromagnetic force of the coils of the common stator To rotate at different rotational speeds and in different directions simultaneously. With such a configuration, the first and second rotors can be made to have different numbers of magnet poles of the first rotor and the second rotor without having to perform a complicated control process to commonly use a single stator, It is possible for the first rotor and the second rotor to rotate in opposite directions to each other.

The first rotor may be configured to have n number of magnet poles (where n is a natural number), preferably such that the opposite rotation of the first rotor and the second rotor relative to the common stator can be ensured, n < / RTI > i, where n and i are natural numbers. In some cases, the first rotor and the second rotor may be configured to rotate in different directions with respect to the common stator by changing the direction in which power is applied to the coils of the common stator or in other ways.

In addition, a position sensing sensor for sensing the rotational position of the first rotor and the second rotor with respect to the common magnet may be provided. As the position sensing sensor, a conventional sensor such as a Hall sensor capable of sensing the rotational position of the first rotor and the second rotor relative to the common magnet may be used. Depending on the type and characteristics of the position sensor, It is not.

Further, it may include a position returning means for returning the first rotor and the second rotor to the initial position with respect to the common magnet. The position return means allows the position of the first magnet relative to the coil and the position of the second magnet relative to the coil to be returned to a predetermined initial position before power is applied to the common stator.

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 a single stator can be commonly used and two different rotors can be rotated in directions opposite to each other, the structure can be simplified and the apparatus can be made smaller.

Furthermore, according to the present invention, by simply changing the number of magnet poles of the first rotor and the second rotor without having to perform a complicated control process for the first rotor and the second rotor to commonly use a single stator, It is possible for the first rotor and the second rotor to rotate in mutually opposite directions.

Further, according to the present invention, since two different rotors can be rotated by a single stator, 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 of a common stator and a rotor, 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.

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 the structure of a common stator and a rotor as a fan module for an electronic part according to the present invention, Are diagrams for explaining an operating structure of a fan module for an electronic part according to the present invention.

As shown in these drawings, the fan module for an electronic component according to the present invention includes a common stator 105, a first rotor 110, a second rotor 120, a first fan 210, 220).

The common stator 105 includes a stator support 105b and a coil 105a provided on the stator support 105b. The stator support 105b includes a first rotating shaft 101 and a second rotating shaft 105b. Two rotating shafts are disposed coaxially.

In addition, a normal bearing member may be provided between the common stator 105 support and the first rotating shaft 101 and the second rotating shaft, respectively, and the first rotating shaft 101 and the second rotating shaft And is configured to rotate relative to the common stator 105 support.

The coil 105a may be wound on the stator support 105b in a conventional winding manner or insert molded with the stator support 105b and may be inserted into a common stator including the coil 105a and the stator support 105b 105) can be variously changed in accordance with required conditions and design specifications.

The first rotor 110 is rotatably provided on the outer side of one end of the common stator 105 by a conventional outer rotor method and the first fan 210, which will be described later, . For example, the first rotor 110 includes a first magnet 112 disposed at one end of the coil 105a so as to face the coil 105a, and a second magnet 112 that supports the first magnet 112, And a first rotor support 114 to which the fan 210 is connected.

The first rotor support 114 is configured to rotate in one direction (e.g., counterclockwise) together with the first magnet 112 by mutual electromagnetic action between the coil 105a and the first magnet 112 And the first fan 210 connected to the first rotor support 114 may also rotate with the first rotor support 114 when the first rotor support 114 rotates.

The second rotor 120 is rotatably provided outside the other end of the common stator 105 so as to be coaxially disposed with the first rotor 110 in a normal outer rotor manner, The second fan 220 is integrally rotatably connected. For example, the second rotor 120 includes a second magnet 122 disposed outside the other end of the coil 105a to face the coil 105a, and a second magnet 122 supporting the second magnet 122, And a second rotor support 124 to which the fan 220 is connected.

The second rotor support 124 is configured to rotate in a different direction (e.g., clockwise) with the second magnet 122 by mutual electromagnetic action between the coil 105a and the second magnet 122 And the second fan 220 connected to the second rotor support 124 may also rotate with the second rotor support 124 when the second rotor support 124 rotates.

The first fan 210 is disposed on an inlet side of the fan housing 10 so as to be connected to the first rotor 110 and includes a first rotating shaft 101 disposed inside the fan housing 10 As shown in Fig.

The second fan 220 is disposed on the outlet side of the fan housing 10 so as to be connected to the second rotor 120 and includes a second rotating shaft 102 disposed inside the fan housing 10 As shown in Fig.

 In addition, the number and characteristics of the blades of the first fan 210 and the second fan 220 may be variously changed according to required conditions and design specifications. In addition, the first fan 210 and the second fan 220 may have the same structure and characteristics, or may have different structures and characteristics. The first fan 210 and the second fan 220 The present invention is not limited to or limited by the structure and characteristics of the present invention.

As described above, the first rotor 110 and the second rotor 120 are configured to commonly rotate the common stator 105 and to rotate in opposite directions to each other. The first rotor 110 and the second rotor 120, The rotation of the first rotor 110 and the second rotor 120 in the opposite direction can be implemented in various ways according to the required conditions and design specifications.

For example, the first rotor 110 and the second rotor 120 may be provided with different numbers of poles, and the first rotor 110 and the second rotor 120, which have different magnet poles, The stator 120 may be configured to simultaneously rotate at different rotational speeds and in different directions by mutual electromagnetic force with the common stator 105. In some cases, the first rotor and the second rotor may be configured to rotate in different directions with respect to the common stator by changing the direction in which power is applied to the coils of the common stator or in other ways.

That is, when the first rotor 110 and the second rotor 120 have different numbers of magnetic poles, power is applied to the coils 105a of the common stator 105, The electromagnetic force generated between the first magnet 112 of the rotor 110 and the electromagnetic force generated between the coil 105a and the second magnet 122 of the second rotor 120 are formed in opposite directions So that the first rotor 110 and the second rotor 120 can rotate in opposite directions to each other. Since the first rotor 110 and the second rotor 120 have different numbers of magnetic poles, the first rotor 110 and the second rotor 120, which are supplied with power to the coils 105a of the common stator 105, The rotational speed of the rotor 120 may be different.

Preferably, the first rotor 110 includes n (where n is a natural number) such that the opposite rotation of the first rotor 110 and the second rotor 120 with respect to the common stator 105 can be ensured, And the second rotor 120 may be configured to have n 占 i (where n and i are natural numbers) magnet poles.

Hereinafter, the first rotor 110 has 16 magnet poles, the second rotor 120 has 8 magnet poles, and the first magnet 110 of the first rotor 110 and the second rotor 120 ) Of the second magnets 122 are arranged to be shifted at predetermined intervals along the circumferential direction. For example, in the embodiment of the present invention, the first rotor 110 is configured to have a relatively larger number of magnetic poles than the second rotor 120. However, in some cases, It is also possible to have many magnet poles.

The initial position of the first magnet 112 and the second magnet 122 (the position where the first magnet 112 and the second magnet 122 are disposed before power is applied to the coil 105a) And may be appropriately changed according to the number of the first magnet 112 and the second magnet 122, the arrangement interval, the size, and the like.

Also, a position sensing sensor 300 for sensing the rotational position of the first rotor 110 and the second rotor 120 with respect to the common magnet may be provided.

The position sensor 300 senses the rotational position of the first rotor 110 and the second rotor 120 with respect to the common magnet so that the position of the first rotor 110 and the second rotor 120 relative to the common stator 105 120) and the amount of rotation of the rotor.

The position sensor 300 may be a conventional sensor capable of sensing the rotational position of the first rotor 110 and the second rotor 120 with respect to the common magnet. The present invention is not limited thereto. For example, a conventional Hall sensor can be used as the position detection sensor 300. [

Since the first rotor 110 and the second rotor 120 commonly use the common stator 105, the first stator 105 and the second stator 105 are fixed to the common stator 105, The position of the first magnet 112 and the position of the second magnet 122 relative to the coil 105a must be set to predetermined initial positions. To this end, the position returning means 400 for returning the first rotor 110 and the second rotor 120 to the initial position with respect to the common magnet may be provided.

For example, a normal magnet may be used as the position returning means 400, and the first rotor 110 and the second rotor 120 may be returned to their initial positions by the magnetic force of the magnet. In some cases, an elastic member such as a spring may be used as the position returning means, and the present invention is not limited or limited by the type and characteristics of the position returning means.

With such a structure, when power is applied to the coils 105a of the common stator 105, the coils 105a and 105b are excited by the mutual electromagnetic action between the coils 105a and the first magnets 112 of the first rotor 110 1 rotor 110 can rotate in a counterclockwise direction and the first fan 210 connected to the first rotor 110 rotates counterclockwise. At the same time, the second rotor 120 can be rotated in the clockwise direction by the mutual electromagnetic action between the coil 105a and the second magnet 122 of the second rotor 120, The connected second fan 220 rotates in the clockwise direction (see FIG. 4)

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.

105: common stator 110: first rotor
120: second rotor 210: first fan
220: second fan 300: position detection sensor
400: Position return means

Claims (6)

A fan module for an electronic component,
A common stator;
A first rotor rotating in one direction outside the common stator by mutual electromagnetic force with the common stator;
A second rotor which rotates in the other direction from the outside of the common stator by mutual electromagnetic force with the common stator;
A first fan rotated by the first rotor; And
A second fan disposed coaxially with the first fan and rotating in a direction opposite to the first fan by the second rotor;
Wherein the fan module comprises: The method according to claim 1,
Wherein the first rotor and the second rotor are provided with different number of poles of magnet,
Wherein the first rotor and the second rotor simultaneously rotate at different rotational speeds and in different directions by mutual electromagnetic force with the coils of the common stator. 3. The method of claim 2,
The first rotor has n number of magnet poles (n is a natural number)
And the second rotor has n 占 i (n and i are natural numbers) magnetic pole numbers. The method according to claim 1,
Wherein the first rotor is disposed outside one end of the common stator,
And the second rotor is disposed outside the other end of the common stator so as to be coaxially disposed with the first rotor. The method according to claim 1,
Further comprising a position sensing sensor for sensing a rotational position of the first rotor and the second rotor with respect to the common magnet. The method according to claim 1,
Further comprising a position returning means for returning the first rotor and the second rotor to an initial position with respect to the common magnet.
KR1020150127629A 2015-09-09 2015-09-09 Fan module for electronic component KR20170030275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150127629A KR20170030275A (en) 2015-09-09 2015-09-09 Fan module for electronic component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150127629A KR20170030275A (en) 2015-09-09 2015-09-09 Fan module for electronic component

Publications (1)

Publication Number Publication Date
KR20170030275A true KR20170030275A (en) 2017-03-17

Family

ID=58502233

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150127629A KR20170030275A (en) 2015-09-09 2015-09-09 Fan module for electronic component

Country Status (1)

Country Link
KR (1) KR20170030275A (en)

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