WO2012103707A1 - 离心风扇系统和离心风扇的设置方法 - Google Patents
离心风扇系统和离心风扇的设置方法 Download PDFInfo
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- WO2012103707A1 WO2012103707A1 PCT/CN2011/076323 CN2011076323W WO2012103707A1 WO 2012103707 A1 WO2012103707 A1 WO 2012103707A1 CN 2011076323 W CN2011076323 W CN 2011076323W WO 2012103707 A1 WO2012103707 A1 WO 2012103707A1
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- Prior art keywords
- centrifugal fan
- fan
- centrifugal
- frame
- fixing plate
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000010354 integration Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
Definitions
- the invention relates to the technical field of mechanical structures, in particular to a centrifugal fan system and a method for setting a centrifugal fan.
- the centrifugal fan is a fan that enters the air from the bottom and vents from the surface.
- the high-performance centrifugal fan is also applied to the heat dissipation design of the frame system of the indoor product. Due to the fact that the centrifugal fan is not in a straight line and the high pressure and high air volume, the centrifugal fan can bring more heat dissipation benefits and improve the performance of the system.
- a method for setting a centrifugal fan in the prior art includes: as shown in FIG. 1 , two centrifugal fans are placed in one fan frame, and two centrifugal fans are arranged in an upper and lower layer. The air is blown into the bottom of the two centrifugal fans and the surface is ventilated.
- a disadvantage of the method for setting a centrifugal fan in the above prior art is that since the two centrifugal fans adopt the upper and lower layer layout, the height of the fan frame is greater than the height of the two centrifugal fans, and the fan frame takes up too much height of the chassis. And reduce the integration of the chassis.
- the embodiment of the invention provides a method for setting a centrifugal fan system and a centrifugal fan, which is used to solve the problem that the height of the fan frame existing in the prior art is too high, thereby causing the chassis integration to decrease.
- the embodiment of the invention provides a centrifugal fan system, including:
- first centrifugal fan a first centrifugal fan, a second centrifugal fan, and a fan frame
- the first centrifugal fan is disposed above the fan frame
- the second centrifugal fan is disposed below the fan frame
- the first centrifugal fan and the second centrifugal fan are arranged upside down such that the height of the first centrifugal fan top to the bottom of the second centrifugal fan is smaller than the height of the first centrifugal fan and the second centrifugal fan The sum of heights.
- the embodiment of the invention further provides a method for setting a centrifugal fan, comprising:
- the first centrifugal fan is disposed above the fan frame, and the second centrifugal fan is disposed below the fan frame;
- the embodiment of the present invention fully utilizes the characteristics of the centrifugal fan, so that the two centrifugal fans disposed in one fan frame are partially overlapped in height, thereby The height of the fan frame is reduced, and the height of the chassis occupied by the fan frame portion is also reduced, thereby improving the integration of the chassis.
- FIG. 2 is a structural diagram of a specific implementation of a centrifugal fan system according to Embodiment 1 of the present invention
- FIG. 3 is a schematic diagram of the height of the top of the first centrifugal fan and the bottom of the second centrifugal fan and the air inlet direction of the air inlet of the fan according to the first embodiment of the present invention
- FIG. 4 is a schematic diagram of another height of the top of the first centrifugal fan and the bottom of the second centrifugal fan and the air inlet direction of the fan air inlet according to the first embodiment of the present invention
- FIG. 5 is a schematic diagram of another height of the top of the first centrifugal fan and the bottom of the second centrifugal fan and the air inlet direction of the air inlet of the fan according to the first embodiment of the present invention
- FIG. 6 is a schematic diagram of another height of the top of the first centrifugal fan and the bottom of the second centrifugal fan and the air inlet direction of the air inlet of the fan according to the first embodiment of the present invention
- FIG. 7 is a schematic diagram of a fan control board vertically disposed on an upper surface of the second centrifugal fan according to Embodiment 1 of the present invention.
- FIG. 8 is a schematic diagram of a fan control board vertically disposed in a first portion of the support board according to Embodiment 1 of the present invention.
- This embodiment provides a centrifugal fan system, and the specific implementation structure thereof is as shown in FIG. 2, including: a first centrifugal fan 21, a second centrifugal fan 22, and a fan frame 23.
- the first centrifugal fan 21 is disposed above the fan frame 23, and the second centrifugal fan 22 is disposed below the fan frame 23.
- the area inside the chassis is relatively far from the ground plane.
- Below the fan frame 23 is the area of the chassis that is relatively close to the ground plane when the fan frame 23 is normally placed.
- the upper part of the fan frame 23 is an area in which the inside of the frame is relatively far away from the ground plane when the fan frame 23 is normally placed.
- the inside of the frame is relatively close.
- a plane corresponding to the air inlets of the first centrifugal fan 21 and the second centrifugal fan 22 is parallel to a horizontal plane.
- a plane corresponding to the air inlets of the first centrifugal fan 21 and the second centrifugal fan 22 is parallel to a horizontal plane. It can be understood that, in practical applications, the plane corresponding to the air inlet of the first centrifugal fan 21 and the second centrifugal fan 22 may also have a certain inclination angle with the horizontal plane, and these equivalent solutions are all in the field. Techniques known to the skilled person are not described in detail herein.
- the first centrifugal fan 21 and the second centrifugal fan 22 are arranged upside down such that the height of the top of the first centrifugal fan 21 to the bottom of the second centrifugal fan 22 is smaller than the height of the first centrifugal fan 21 and the The sum of the heights of the second centrifugal fans 22.
- the two can be interlaced to a height of about 2 cm, or the height of the fan can be adjusted according to the size of each fan and the position of the air outlet. If the fan is relatively high, the height of the overlap can be relatively large, and it is considered that the fan is not blocked.
- the air outlet affects the wind effect.
- a plane passing through the top of the first centrifugal fan 21 (the highest vertical point with respect to the horizontal plane) and parallel to the horizontal plane is referred to as a first plane, and will pass through the top and parallel of the second centrifugal fan 22
- the plane in the horizontal plane is referred to as a second plane
- the plane passing through the bottom of the first centrifugal fan 21 (the vertical lowest point with respect to the horizontal plane) and parallel to the horizontal plane is referred to as a third plane, passing through the bottom of the second centrifugal fan 22
- the plane parallel to the horizontal plane is called the fourth plane.
- a height from a top of the first centrifugal fan 21 to a bottom of the second centrifugal fan 22 is a distance between the first plane and the fourth plane, and a height of the first centrifugal fan 21 is the first plane to The distance between the third planes, the height of the second centrifugal fan 22 is the distance between the second plane and the fourth plane.
- the top of the first centrifugal fan 21 or the second centrifugal fan 22 is the upper surface of the first centrifugal fan 21 or the second centrifugal fan 22 that is relatively far away from the ground plane when the first centrifugal fan 21 or the second centrifugal fan 22 is normally placed.
- the bottom of the two centrifugal fan 22 is a lower surface relatively close to the ground plane when the first centrifugal fan 21 or the second centrifugal fan 22 is normally placed.
- the above embodiment illustrates the case where the plane corresponding to the air inlet of the fan is parallel to the horizontal plane, and the height of the fan is defined as the distance between the plane of the fan top parallel to the horizontal plane and the plane of the bottom parallel to the horizontal plane. It can be understood that the fan enters.
- the tuyere can also be placed perpendicular to the horizontal plane, and the top and bottom of the fan can also be defined as the vertical distance between the two furthest points relative to the vertical plane.
- the height of the top of the first centrifugal fan and the bottom of the second centrifugal fan and the air inlet direction of the fan inlet may have several combinations in FIGS. 3-6.
- the wind direction can also be changed correspondingly (for example, the fan inlet of Fig. 6 is placed above and the wind is fed from above).
- centrifugal fan system may further include:
- the fan control board 24 is connected to the first centrifugal fan 21 and the second centrifugal fan 22 by a cable, and is disposed laterally (e.g., parallel to a horizontal plane) or vertically (e.g., perpendicular to a horizontal plane) in the fan frame 23.
- a support plate 25 a first portion of the support plate 25 is disposed under the first centrifugal fan 21 for supporting the first centrifugal fan 21, and a second portion of the support plate 25 is disposed at the second
- the upper surface of the centrifugal fan 22 is in contact with the top of the second centrifugal fan 22, and the first portion and the second portion are connected by a slope, and the first portion is provided with an opening for air intake.
- the support plate can be realized by a printed circuit board (PCB) or a plate of other materials, which is not limited herein.
- PCB printed circuit board
- the fan control board 24 may be laterally disposed on the second portion of the support plate and in contact with the top of the second portion of the support plate 25, that is, the support plate 25 The top of the second portion supports the fan control panel 24.
- the fan control board 24 may be vertically disposed on the upper surface of the second centrifugal fan 22, and in contact with the inner surface of the fan frame 23, and the fan control board 24 may be The structural support of the inner surface of the fan frame 23 is connected;
- the fan control board 24 may be vertically disposed in the first portion of the support plate 25, and in contact with the inner surface of the first portion of the support plate 25, the fan control panel 24 Supported by a structure connected to the inner surface of the first portion of the support plate 25.
- the support plate 25 can also be set to a “Z” shape, including a first fixing plate, an intermediate connecting plate and a second fixing plate, and the intermediate connecting plate is respectively connected to the first fixing plate and the second fixing plate.
- the first fixing plate is provided with an opening for entering air; the first centrifugal fan 21 is fixed on the upper surface of the first fixing plate; and the second centrifugal fan 22 is fixed under the second fixing plate.
- the fan control board 24 is laterally disposed on the second fixing plate and is in contact with the top of the second fixing plate; or is vertically disposed on the second centrifugal fan, and the The inner surface of the fan frame is in contact; or is vertically disposed in the first fixing plate and is in contact with the inner surface of the first fixing plate.
- the embodiment of the present invention fully utilizes the characteristics of the centrifugal fan to partially overlap the height between the two centrifugal fans disposed in one fan frame, thereby reducing the height.
- the height of the fan frame reduces the height of the chassis occupied by the fan frame and improves the integration of the chassis.
- the split layer layout of the two centrifugal fans is implemented in one fan frame, the space for the fan control board is provided, and the fan control board is completely disposed in the fan frame, and no longer takes up extra space. Space.
- the processing flow of the method for setting a centrifugal fan provided by this embodiment is as shown in FIG. 9 and includes the following processing steps:
- Step 91 Set a first centrifugal fan and a second centrifugal fan in a fan frame.
- the first centrifugal fan is disposed above the fan frame, and the second centrifugal fan is disposed below the fan frame.
- the upper part of the fan frame is the area of the frame that is relatively far from the ground plane when the fan frame is placed normally.
- the lower part of the fan frame is the area of the frame that is relatively close to the ground plane when the fan frame is normally placed.
- a plane corresponding to the air inlet of the first centrifugal fan and the second centrifugal fan is parallel to a horizontal plane;
- Step 92 the first centrifugal fan and the second centrifugal fan are arranged upside down such that the height of the first centrifugal fan top to the bottom of the second centrifugal fan is smaller than the height of the first centrifugal fan and the first The sum of the heights of the two centrifugal fan heights.
- a plane passing through the top of the first centrifugal fan and parallel to the horizontal plane is referred to as a first plane
- a plane passing through the top of the second centrifugal fan and parallel to the horizontal plane is referred to as a second plane
- a plane passing through the bottom of the first centrifugal fan and parallel to the horizontal plane is referred to as a third plane
- a plane passing through the bottom of the second centrifugal fan and parallel to the horizontal plane is referred to as a fourth plane.
- a height from the top of the first centrifugal fan to the bottom of the second centrifugal fan is a distance between the first plane and the fourth plane
- a height of the first centrifugal fan is the first plane to the first The distance between the three planes, the height of the second centrifugal fan being the distance between the second plane and the fourth plane.
- the top of the first centrifugal fan and the second centrifugal fan are opposite to the upper surface of the ground plane when the first centrifugal fan or the second centrifugal fan is normally placed, and the bottom of the first centrifugal fan or the second centrifugal fan is When the first centrifugal fan or the second centrifugal fan is normally placed, it is relatively close to the lower surface of the ground plane.
- the top of the second centrifugal fan is disposed not higher than the air outlet of the first centrifugal fan to prevent the second centrifugal fan from blocking the air outlet of the first centrifugal fan.
- the method further includes:
- a fan control panel is disposed in the fan frame, and the fan control panel is connected to the first centrifugal fan and the second centrifugal fan through a cable, and is disposed laterally or vertically in the fan frame.
- a support plate is disposed in the fan frame, and a first portion of the support plate is disposed under the first centrifugal fan for supporting the first centrifugal fan, and the second portion of the support plate is disposed Above the second centrifugal fan, in contact with the top of the second centrifugal fan, the first portion and the second portion are connected by a bevel, and the first portion is provided with an opening for air intake.
- a support plate is disposed in the fan frame, the support plate has a "Z" shape, and includes a first fixed plate, an intermediate connecting plate and a second fixed plate, and the intermediate connecting plate is respectively connected to the first fixed plate and the first a fixing plate, wherein the first fixing plate is provided with an opening for entering the air;
- the first centrifugal fan is fixed on the upper surface of the first fixing plate, and the second centrifugal fan is fixed under the second fixing plate.
- the embodiment of the present invention fully utilizes the characteristics of the centrifugal fan to partially overlap the two centrifugal fans disposed in one fan frame, thereby reducing the height of the fan frame and reducing the chassis occupied by the fan frame portion.
- the height of the chassis increases the integration of the chassis and squeezes more space for the rest of the chassis, especially when the height of the chassis is tight.
- the space for the fan control board is provided, which not only realizes that two centrifugal fans share one fan control board, thereby reducing the cost. Moreover, the placement of the fan control board is completely realized in the fan frame, no longer occupying extra space.
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Description
技术领域
本发明涉及机械结构技术领域，尤其涉及一种离心风扇系统和离心风扇的设置方法。
背景技术
离心风扇是一种从底部进风、从表面出风的风扇，为满足高性能插框的开发，高性能的离心风扇也开始应用到室内产品的框体系统散热设计中。离心风扇因其进出风口不在一条直线上的特点及高压高风量，可以带来更多的散热收益，从而提升系统的性能。
现有技术中的一种离心风扇的设置方法包括：如图1所示，一个风扇框中放置两个离心风扇，两个离心风扇采用上下层布局。两个离心风扇底部进风，表面出风。
上述现有技术中的一种离心风扇的设置方法的缺点为：由于两个离心风扇采用上下层布局，风扇框的高度会大于两个离心风扇的高度，风扇框占去机箱的高度太多，并且降低了机箱的集成度。
发明内容
本发明实施例提供了一种离心风扇系统和离心风扇的设置方法，用以解决现有技术中存在着的风扇框高度太高，从而造成机箱集成度下降的问题。
其中，本发明实施例提供了一种离心风扇系统，包括：
第一离心风扇、第二离心风扇和风扇框，所述第一离心风扇设置于所述风扇框的上方，所述第二离心风扇设置于所述风扇框的下方；
所述第一离心风扇与所述第二离心风扇上下交错设置，使得所述第一离心风扇顶部到第二离心风扇底部的高度小于所述第一离心风扇的高度与所述第二离心风扇的高度之和。
本发明实施例还提供了一种离心风扇的设置方法，包括：
在一个风扇框中设置第一离心风扇和第二离心风扇，
所述第一离心风扇设置于所述风扇框的上方，所述第二离心风扇设置于所述风扇框的下方；
将所述第一离心风扇与所述第二离心风扇上下交错设置，使得所述第一离心风扇顶部到第二离心风扇底部的高度小于所述第一离心风扇的高度与所述第二离心风扇高度的高度之和。
由上述本发明的实施例提供的技术方案可以看出，本发明实施例充分利用了离心风扇的特征，使设置在一个风扇框中的两个离心风扇之间在高度上有部分交错重叠，从而降低了风扇框的高度，也降低了风扇框部分所占机箱的高度，提升了机箱的集成度。
附图简要说明
图1为现有技术中的一种离心风扇的设置方法的示意图；
图2为本发明实施例一提供的一种离心风扇系统的具体实现结构图；
图3为本发明实施例一提供的一种第一离心风扇顶部与第二离心风扇底部的高度与风扇进风口进风方向的示意图；
图4为本发明实施例一提供的另一种第一离心风扇顶部与第二离心风扇底部的高度与风扇进风口进风方向的示意图；
图5为本发明实施例一提供的另一种第一离心风扇顶部与第二离心风扇底部的高度与风扇进风口进风方向的示意图；
图6为本发明实施例一提供的另一种第一离心风扇顶部与第二离心风扇底部的高度与风扇进风口进风方向的示意图；
图7为本发明实施例一提供的一种将风扇控制板垂直设置在所述第二离心风扇的上面的示意图；
图8为本发明实施例一提供的一种将风扇控制板垂直设置在所述支撑板的第一部分中的示意图；
图9为本发明实施例二提供的一种离心风扇的设置方法的处理流程图。
实施本发明的方式
实施例一
该实施例提供了一种离心风扇系统，其具体实现结构如图2所示，包括：第一离心风扇21、第二离心风扇22和风扇框23。
所述第一离心风扇21设置于所述风扇框23的上方，所述第二离心风扇22设置于所述风扇框23的下方，所述风扇框23的上方为所述风扇框23正常放置时，机框内部相对远离地平面的区域，所述风扇框23的下方为所述风扇框23正常放置时，机框内部相对靠近地平面的区域。所述风扇框23的上方为所述风扇框23正常放置时，机框内部相对远离地平面的区域，所述风扇框23的下方为所述风扇框23正常放置时，机框内部相对靠近地平面的区域，所述第一离心风扇21以及所述第二离心风扇22的进风口所对应的平面平行于水平面。
所述第一离心风扇21和所述第二离心风扇22的进风口所对应的平面平行于水平面。可以理解的是，在实际应用中，所述第一离心风扇21和所述第二离心风扇22的进风口所对应的平面也可以和水平面有一定的倾斜角度，这些等同的方案都为本领域技术人员所公知的技术，在此不再详述。
所述第一离心风扇21与所述第二离心风扇22上下交错设置，使得所述第一离心风扇21顶部到第二离心风扇22底部的高度小于所述第一离心风扇21的高度与所述第二离心风扇22的高度之和。例如，两者可以交错重合2cm左右的高度，或者视各个风扇的大小及出风口位置来调整交错的高度，出风扇比较高的话重合的高度可以相对大一点，同时考虑不挡住其中一个风扇的出风口以影响出风效果。
在本发明实施例中，将经过所述第一离心风扇21顶部（相对于水平面的垂直最高点）且平行于水平面的平面称为第一平面，将经过所述第二离心风扇22顶部且平行于水平面的平面称为第二平面，将经过所述第一离心风扇21底部（相对于水平面的垂直最低点）且平行于水平面的平面称为第三平面，经过所述第二离心风扇22底部且平行于水平面的平面称为第四平面。
所述第一离心风扇21顶部到第二离心风扇22底部的高度为所述第一平面到所述第四平面之间的距离，所述第一离心风扇21的高度为所述第一平面到所述第三平面之间的距离，所述第二离心风扇22的高度为所述第二平面到所述第四平面之间的距离。
所述第一离心风扇21或第二离心风扇22的顶部为所述第一离心风扇21或第二离心风扇22正常放置时，相对远离地平面的上表面，所述第一离心风扇21或第二离心风扇22的底部为所述第一离心风扇21或第二离心风扇22正常放置时，相对靠近地平面的下表面。
上述实施例中说明的是风扇进风口对应的平面平行于水平面的情况，且风扇高度定义为风扇顶部平行于水平面的平面到底部平行于水平面的平面之间的距离，可以理解的是，风扇进风口也可以垂直于水平面设置，风扇的顶部与底部也可以定义为相对于垂直水平面的两个最远点之间的垂直距离。此时，第一离心风扇顶部与第二离心风扇底部的高度与风扇进风口进风方向可以有图3-图6中的几种组合。
实际上，在这几种组合当中，风向也可以相对应的改变（如将图6中的风扇进风口放到上方，从上方进风）。
进一步地，所述的离心风扇系统还可以包括：
风扇控制板24，通过线缆和所述第一离心风扇21和第二离心风扇22连接，在所述风扇框23中横向（如平行于水平面）或者垂直设置（如垂直于水平面）。
支撑板25，所述支撑板25的第一部分设置在所述第一离心风扇21的下面，用于支撑所述第一离心风扇21，所述支撑板25的第二部分设置在所述第二离心风扇22的上面，和所述第二离心风扇22的顶部接触，所述第一部分和所述第二部分之间通过斜面连接，所述第一部分中设置有用于进风的开口。
具体的，支撑板可以通过印刷电路板（PCB）或其他材料的板材来实现，这里并不限定。
进一步地，如图2所示，所述的风扇控制板24可以横向设置在所述支撑板的第二部分上，和所述支撑板25的第二部分的顶部接触，即所述支撑板25的第二部分的顶部支撑着所述风扇控制板24。
或者，如图7所示，所述的风扇控制板24可以垂直设置在所述第二离心风扇22的上面，和所述风扇框23的内表面接触，所述的风扇控制板24由和所述风扇框23的内表面相连的架构支撑；
或者，如图8所示，所述的风扇控制板24可以垂直设置在所述支撑板25的第一部分中，和所述支撑板25的第一部分的内表面接触，所述的风扇控制板24由和所述支撑板25的第一部分的内表面相连的架构支撑。
在实际应用中，还可以将所述支撑板25设置为“Z”字型，包括第一固定板、中间连接板与第二固定板，中间连接板分别连接第一固定板与第二固定板，所述第一固定板中设置有用于进风的开口；所述第一离心风扇21固定于第一固定板的上面；所述第二离心风扇22固定于第二固定板的下面。
进一步地，所述的风扇控制板24，横向设置在所述第二固定板上，和所述第二固定板的顶部接触；或者，垂直设置在所述第二离心风扇的上面，和所述风扇框的内表面接触；或者，垂直设置在所述第一固定板中，和所述第一固定板的内表面接触。
由上述本发明的实施例提供的技术方案可以看出，本发明实施例充分利用了离心风扇的特征使设置在一个风扇框中的两个离心风扇之间在高度上有部分重叠，从而降低了风扇框的高度，降低了风扇框部分所占机箱的高度，提升了机箱的集成度。
本发明实施例由于在一个风扇框内实现两个离心风扇的错层布局，这样就为风扇控制板的布放提供了空间，风扇控制板的摆放完全在风扇框内实现，不再占据额外的空间。
实施例二
该实施例提供的一种离心风扇的设置方法的处理流程如图9所示，包括如下的处理步骤：
步骤91、在一个风扇框中设置第一离心风扇和第二离心风扇，
所述第一离心风扇设置于所述风扇框的上方，所述第二离心风扇设置于所述风扇框的下方。
所述风扇框的上方为所述风扇框正常放置时，机框内部相对远离地平面的区域，所述风扇框的下方为所述风扇框正常放置时，机框内部相对靠近地平面的区域，所述第一离心风扇以及所述第二离心风扇的进风口所对应的平面平行于水平面；
步骤92、将所述第一离心风扇与所述第二离心风扇上下交错设置，使得所述第一离心风扇顶部到第二离心风扇底部的高度小于所述第一离心风扇的高度与所述第二离心风扇高度的高度之和。
在本发明实施例中，将经过所述第一离心风扇顶部且平行于水平面的平面称为第一平面，将经过所述第二离心风扇顶部且平行于水平面的平面称为第二平面，将经过所述第一离心风扇底部且平行于水平面的平面称为第三平面，经过所述第二离心风扇底部且平行于水平面的平面称为第四平面。
所述第一离心风扇顶部到第二离心风扇底部的高度为所述第一平面到所述第四平面之间的距离，所述第一离心风扇的高度为所述第一平面到所述第三平面之间的距离，所述第二离心风扇的高度为所述第二平面到所述第四平面之间的距离。
所述第一离心风扇第二离心风扇的顶部为所述第一离心风扇或第二离心风扇正常放置时，相对远离地平面的上表面，所述第一离心风扇或第二离心风扇的底部为所述第一离心风扇或第二离心风扇正常放置时，相对靠近地平面的下表面。
特别的，将所述的第二离心风扇的顶部设置为不高于所述的第一离心风扇的出风口，以防止所述第二离心风扇挡住所述第一离心风扇的出风口。
进一步地，所述的方法还包括：
在所述风扇框中设置风扇控制板，所述风扇控制板通过线缆和所述第一离心风扇和第二离心风扇连接，在所述风扇框中横向或者垂直设置。
进一步地，在所述风扇框中设置支撑板，所述支撑板的第一部分设置在所述第一离心风扇的下面，用于支撑所述第一离心风扇，所述支撑板的第二部分设置在所述第二离心风扇的上面，和所述第二离心风扇的顶部接触，所述第一部分和所述第二部分之间通过斜面连接，所述第一部分中设置有用于进风的开口。
将所述的风扇控制板横向设置在所述支撑板的第二部分上，和所述支撑板的第二部分的顶部接触；或者，垂直设置在所述第二离心风扇的上面，和所述风扇框的内表面接触；或者，垂直设置在所述支撑板的第一部分中，和所述支撑板的第一部分的内表面接触。
进一步地，在所述风扇框中设置支撑板，所述支撑板呈“Z”字型，包括第一固定板、中间连接板与第二固定板，中间连接板分别连接第一固定板与第二固定板，所述第一固定板中设置有用于进风的开口；
将所述第一离心风扇固定于第一固定板的上面，将所述第二离心风扇固定于第二固定板的下面。
将所述的风扇控制板横向设置在所述第二固定板上，和所述第二固定板的顶部接触；或者，垂直设置在所述第二离心风扇的上面，和所述风扇框的内表面接触；或者，垂直设置在所述第一固定板中，和所述第一固定板的内表面接触。
综上所述，本发明实施例充分利用了离心风扇的特征使设置在一个风扇框中的两个离心风扇之间有部分重叠，从而降低了风扇框的高度，降低了风扇框部分所占机箱的高度，提升了机箱的集成度，为机箱中的其它部分的设计挤出更多的空间，尤其是当机箱高度空间紧张时显得尤为重要。
本发明实施例由于在一个风扇框内实现两个离心风扇的错层布局，这样就为风扇控制板的布放提供了空间，不仅实现了两个离心风扇共用一个风扇控制板，降低了成本，而且风扇控制板的摆放完全在风扇框内实现，不再占据额外的空间。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。
Claims (10)
- 一种离心风扇系统，包括：第一离心风扇、第二离心风扇和风扇框，其特征在于，所述第一离心风扇设置于所述风扇框的上方，所述第二离心风扇设置于所述风扇框的下方；所述第一离心风扇与所述第二离心风扇上下交错设置，使得所述第一离心风扇顶部到第二离心风扇底部的高度小于所述第一离心风扇的高度与所述第二离心风扇的高度之和。
- 根据权利要求1所述的离心风扇系统，其特征在于，所述的第二离心风扇的顶部不高于所述的第一离心风扇的出风口。
- 根据权利要求1所述的离心风扇系统，其特征在于，所述的离心风扇系统还包括：风扇控制板，通过线缆和所述第一离心风扇和第二离心风扇连接，在所述风扇框中横向或者垂直设置。
- 根据权利要求1或2或3所述的离心风扇系统，其特征在于，所述的离心风扇系统还包括：支撑板，所述支撑板的第一部分设置在所述第一离心风扇的下面，用于支撑所述第一离心风扇，所述支撑板的第二部分设置在所述第二离心风扇的上面，和所述第二离心风扇的顶部接触，所述第一部分和所述第二部分之间通过斜面连接，所述第一部分中设置有用于进风的开口。
- 根据权利要求1或2或3所述的离心风扇系统，其特征在于，所述的离心风扇系统还包括：支撑板，所述支撑板呈“Z”字型，包括第一固定板、中间连接板与第二固定板，中间连接板分别连接第一固定板与第二固定板，所述第一固定板中设置有用于进风的开口；所述第一离心风扇固定于第一固定板的上面；所述第二离心风扇固定于第二固定板的下面。
- 一种离心风扇的设置方法，其特征在于，包括：在一个风扇框中设置第一离心风扇和第二离心风扇， 所述第一离心风扇设置于所述风扇框的上方，所述第二离心风扇设置于所述风扇框的下方；将所述第一离心风扇与所述第二离心风扇上下交错设置，使得所述第一离心风扇顶部到第二离心风扇底部的高度小于所述第一离心风扇的高度与所述第二离心风扇高度的高度之和。
- 根据权利要求6所述的离心风扇的设置方法，其特征在于，所述的方法还包括：将所述的第二离心风扇的顶部设置为不高于所述的第一离心风扇的出风口。
- 根据权利要求6所述的离心风扇的设置方法，其特征在于，所述的方法还包括：在所述风扇框中设置风扇控制板，所述风扇控制板通过线缆和所述第一离心风扇和第二离心风扇连接，在所述风扇框中横向或者垂直设置。
- 根据权利要求6或7或8所述的离心风扇的设置方法，其特征在于，所述的方法还包括：在所述风扇框中设置支撑板，所述支撑板的第一部分设置在所述第一离心风扇的下面，用于支撑所述第一离心风扇，所述支撑板的第二部分设置在所述第二离心风扇的上面，和所述第二离心风扇的顶部接触，所述第一部分和所述第二部分之间通过斜面连接，所述第一部分中设置有用于进风的开口。
- 根据权利要求6或7或8所述的离心风扇的设置方法，其特征在于，所述的方法还包括：在所述风扇框中设置支撑板，所述支撑板呈“Z”字型，包括第一固定板、中间连接板与第二固定板，中间连接板分别连接第一固定板与第二固定板，所述第一固定板中设置有用于进风的开口；将所述第一离心风扇固定于第一固定板的上面，将所述第二离心风扇固定于第二固定板的下面。
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