CN105453257B - Enhancing structure for natural cooling radiator - Google Patents

Enhancing structure for natural cooling radiator Download PDF

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Publication number
CN105453257B
CN105453257B CN201380078759.5A CN201380078759A CN105453257B CN 105453257 B CN105453257 B CN 105453257B CN 201380078759 A CN201380078759 A CN 201380078759A CN 105453257 B CN105453257 B CN 105453257B
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China
Prior art keywords
radiator
fin
channel
air
angle
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CN201380078759.5A
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CN105453257A (en
Inventor
胡卫峰
安东尼奥斯·莫诺克罗索斯
彼得·埃克赫姆
瓦迪姆·蔡懿瑜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/EP2013/067176 priority Critical patent/WO2015022032A1/en
Publication of CN105453257A publication Critical patent/CN105453257A/en
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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

It include multiple fins (8 the present invention relates to one kind, 9,10) radiator, arrange that the multiple fin to form channel (11 between adjacent fins, 12,13), the channel (11,12, it 13) include air intake vent and air outlet, the radiator includes at least two groups (5,6,7) fin (8,9,10), arrange that two groups of fins make the difference of the air outlet of the position of the air intake vent in first described group (5) of the channel and the channel of remaining described group (6,7).The present invention additionally relate to a kind of cooling heat producing equipment (such as, long-distance radio frequency unit) method, the airflow channel for keeping thermally contacting with the heating equipment the method includes providing at least two groups, each channel has inlet air region and outlet air region, the wherein difference in the outlet air region in the channel of the position and remaining set in the inlet air region in described first group of the channel, so that being prevented from passing through the channel that described first group respective inlet air region enters described first group by the hot-air that the outlet air region of the remaining set is left.

Description

Enhancing structure for natural cooling radiator
The present invention relates generally to the radiators for electronic equipments such as cooled RF extension unit (RRU), more specifically, It is related to obtaining the radiator of cooling effect by free convection.
Background technique
Compared with transmitting base station, distributed base station is with the obvious advantage, such as is easily installed, operation and maintenance.Meanwhile operator The desired output power of member is high, light-weight, small in size etc., this causes the heat density of RRU higher.RRU is the master of distributed base station Module.Nowadays, RRU heat consumption is raised to current 300W from 200W, and RRU is cooling becomes more and more important and challenging.
RRU is cooled down by using radiator and using free convection.Prior art RRU radiator is shown simultaneously in Fig. 1 It is mainly made of straight fins, straight fins are based on internal heat consumption, radiator height and its temperature and optimize to improve total cooling energy Power and lower temperature is obtained in the cells.Current optimization method mentioned above not can be further improved cooling capacity, it is necessary to Using some new designs or technology to improve cooling.
A standard method for promoting RRU cooling capacity is to expand HS volume, as shown in Figure 2.HS volume increase means Fin is higher and HS surface area increases, this is extremely important to radiating.
Another prior art of RRU cooling capacity is using fan coolling, as shown in Fig. 3.Independent fan frame is fixed on At the top of RRU, since main heat transfer mechanisms become forced convertion from free convection, RRU cooling capacity is improved.
There are a large amount of problems for prior art radiator.Therefore, in order to promote RRU cooling capacity, a prior art is solved Scheme is mentioned above to increase cooled region, and which results in the increases of the volume and weight of RRU.Volume increase does not meet operator Member reduces the purpose of website overall appearance.It is higher that weight increase will lead to the requirement installed on tower or bar, and causes into Ben Genggao.The prior art is not easy to be received by operator.
Another prior art solution is to increase independent fan frame.But RRU body cannot be effectively reduced in separate fan Product, independent fan frame will provide new RRU appearance and volume, in addition, independent fan frame is not able to satisfy operator to letter The requirement of single, unified appearance.In addition, fan frame needs to safeguard, when RRU is fixed on the wall, tower or some other high positions When, it is difficult in maintenance and expensive.Therefore, the prior art solution is also difficult to be received by operator
In the traditional heat sinks with straight fins, due to buoyancy, air flows through the air duct formed between fin, and And air is constantly heated when air flows to top from bottom.As a result, in the top half of RRU, air themperature is higher, therefore The cooling capacity of the fin in the region is weaker.
Summary of the invention
In this background, it is an object of the present invention to provide the heat dissipations for overcoming or at least alleviating prior art problem Device.
In enhancing heat spreader structures according to the present invention, the length of the air duct formed between adjacent fins shortens, To reduce self-heating effect.According to the present invention, it realizes identical radiator volume but cooling capacity is higher.
According to the present invention, a kind of radiator including multiple fins is provided, arranges that the multiple fin makes adjacent fins Between form channel, wherein the channel includes air intake vent and air outlet.Radiator according to the present invention includes at least two Group fin arranges that the fin makes the position of the air intake vent in first group of the channel and the channel of remaining set The difference of air outlet.Therefore, the hot-air of the air outlet from the channel group being located at below first group of channel is hindered Only enter the channel in first group of channel.
It should be noted that herein, term " air intake vent " refers to that air enters one or more of heat spreader structures from ambient enviroment A place or region, similarly, term " air outlet " refer to air leave heat spreader structures and flow out to one of ambient enviroment or Multiple places or region.These places or region are indicated by an arrow in of the invention illustrate, it should be understood that these tables Show it is exemplary only, and show flow into structure and flow out structure some specified places.Further, when herein When the flowing of hot-air in channel is by upward buoyancy-driven, it should be understood that in the present specification, " one " organizes fin or channel Refer to the group being located in the air-flow direction as caused by the buoyancy of hot-air.Thus, for example, be shown respectively in figures 4 and 5 In two embodiments, corresponding longitudinal axis Y extends in upwardly direction perpendicular to the ground.
According to an embodiment of the invention, arranging that at least two groups fin makes the longitudinally opposed of first group of the fin Extend in the longitudinal direction of second group of the fin in α angle, wherein α ≠ 0 degree.
By illustrating, other targets, feature, advantage and the property of enhancing radiator according to the present invention, which will be clear that, is in It is existing.
Detailed description of the invention
In the part described below of this description, it will come referring to the exemplary embodiment shown in attached drawing more detailed Explain the present invention in ground, in which:
Fig. 1 is the first example of prior art radiator;
Fig. 2 is the second example of prior art radiator, wherein passing through the cooling zone of the height and radiator that increase fin Domain enhances cooling effect;
Fig. 3 is the third example of prior art radiator, wherein being become heat transfer mechanisms from free convection by providing The fan of forced convertion obtains the cooling capacity of enhancing;
Fig. 4 is schematically illustrating for the hot fin structure of first embodiment according to the present invention;And
Fig. 5 is schematically illustrating for the hot fin structure of second embodiment according to the present invention.
The specific descriptions of preferred embodiment
With reference to Fig. 1, the prior art radiator 1 of a part of the fin 2 including relatively low height is shown.Work as discovery When the cooling capacity deficiency of the prior art radiator, the height of fin can be increased, such as prior art radiator institute according to fig. 2 Show, to increase the cooled region of each fin.
Fig. 3 shows the alternative solution that increased cooling efficiency is obtained by one of the height for increasing fin, wherein answering With fan coolling.One or more cooling fans 4 are placed in the top of RRU, since main heat transfer mechanisms (are being schemed from free convection In 1 and 2) become forced convertion, cooling capacity is improved.
With reference to Fig. 4, schematically illustrating for the hot fin structure of first embodiment according to the present invention is shown.According to this implementation Example, radiator are divided into 5,6 and 7 three groups: group 5 above, and wherein fin 8 is vertical (as shown in the figure), the group positioned at lower left 6, wherein fin 9 is sideling directed toward upper left side and the group 7 positioned at lower right, and wherein fin 10 is sideling directed toward upper right side.
Near the air quantity for being expressed as air intake vent 1 and air intake vent 2, air is flowed into from the front of radiator 1 by adjacent wing The channel 11 that piece 8 is formed continues on the vertical fins 8 that air finally flows up and flows, then from air outlet 1 and outlet air Mouth 2 flows out the accommodation space of radiators.
In addition, bottom of the air from the front end near air intake vent 3 and near air intake vent 4 flows into the lower left group 6 of radiator. Inclined fin 9 ensures to discharge heating directly from the accommodation space of radiator in the case where the top without heating radiator Air (air outlet 3 and air outlet 4).
In the group 7 of the lower right of radiator, symmetrical behaviour is observed.
5, in 6 and 7 three groups, respective air duct 11,12 and 13 is independent of one another, in this way the air-flow quilt in these three groups Correspondingly decouple.
Therefore, the radiator of the present embodiment according to the present invention is divided into three groups, and the air duct in this three groups is gentle Stream is mutually indepedent, and the influence of temperature sequence reduces.Air themperature decline in the channel on top, total cooling capacity of HS mention It is high by about 10%.
In the present embodiment, the fin 9 in second group 6 and longitudinal axis Y are in β angle tilt, the direction of first group 5 of fin 8 It is consistent with Y direction.Fin 10 and longitudinal axis Y in third group 7 are in α angle tilt.In the illustrated embodiment, α angle and the angle β Spend generally equalized, it is to be appreciated that not usually such case, and the asymmetric design of radiator according to the present invention can be with In the range of imagining and falling within this specification.Similarly, it is symmetrical may to be not in relation to Y-axis for radiator according to the present invention, such as Fig. 4 institute Show.
Basic conception of the invention can be implemented as various other embodiments in addition to the embodiment shown in Fig. 4.Therefore, Alternate embodiment is shown in FIG. 5.In this embodiment, radiator 1 is divided into two groups: group 14 above, wherein fin 16 For vertical (as shown in the figure) and following group 15, wherein fin 18 with Y-axis is at angle γ sideling prolongs to the upper right side of radiator It stretches.Alternatively, the fin 18 in following group 15 can sideling be flowed to the upper left side of radiator.
In group 14 above, air intake vent 1 and air intake vent 2 provide air to channel 17 from the front end of radiator, and hang down Straight fin 16 boots up air, and hot-air is flowed out by air outlet 1 and 2.
In following group 15, air is flowed through down by the air intake vent 3 on the radiator left side and the air intake vent 4 of radiator bottom Channel 19 in the group 15 in face.Inclined fin 18 ensures that the air of the heating of the lower part from radiator is brought out radiator Cooling capacity of the accommodation space without reducing top.
Respective air duct 17 and 19 is mutually indepedent in two group 14 and 15, so that air-flow is mutually only in this two parts It is vertical.
Although the teaching of the application is described in detail for purpose of explanation, it is to be understood that such details is intended merely to institute Purpose is stated, and in the case where not departing from the range of teachings of the present invention, those skilled in the art can carry out various repair Change.
Term " includes " used in the attached claims is not excluded for other element or steps.The appended claims Used in term " one " be not excluded for it is multiple.Single processor or other units may be implemented to enumerate in claim several The function of component.

Claims (11)

1. one kind includes the radiator of multiple fins (8,9,10), it is logical to arrange that the multiple fin to be formed between adjacent fins Road (11,12,13), the channel (11,12,13) includes air intake vent and air outlet, which is characterized in that the radiator includes extremely Few two groups of (5,6,7) fins (8,9,10), arrange two groups of fins make first described group (5) of the channel it is described enter The difference of the air intake vent in the channel of the position in air port and remaining described group (6,7) and first described group (5) of institute State the difference of the air outlet of the position of the air intake vent in channel and the channel of remaining described group (6,7);
Arrange that the fin makes the vertical of the longitudinal direction of first group (5) of the fin (8) and second group (6) of the fin (9) Extend in β angle, wherein β ≠ 0 degree;
Arrangement fin makes the vertical of the longitudinal direction of the fin (8) of first group (5) and the fin (10) of third group (7) Extend in α angle.
2. radiator according to claim 1, which is characterized in that the length of first group (5) of the fin (8) is with every The function of the distance between the longitudinal axis Y of a fin (8) and the radiator changes, wherein the longitudinal axis Y is perpendicular to the ground Extend in upwardly direction.
3. radiator according to claim 1, which is characterized in that the radiator includes three described group (5,6,7) Fin (8,9,10), arrange three groups of fins make the fin (8) of described group of first (5) generally with the radiator Longitudinal axis Y extend in parallel, the longitudinal axis Y of the fin (9) of described group of second (6) and the radiator in the extension of β angle, and The fin (10) of described group of third (7) and the longitudinal axis Y of the radiator extend in α angle.
4. radiator according to claim 3, which is characterized in that the α angle is essentially equal to the β angle.
5. radiator according to claim 3, which is characterized in that the α angle is different from the β angle.
6. according to radiator described in claim 3,4 or 5, which is characterized in that 0 ° < α < 90 ° and 0 ° < β < 90 °.
7. radiator according to claim 1, which is characterized in that the radiator includes two described group (14,15) Fin (16,18), arrange two groups of fins make the fin (16) of described group of first (14) generally with the heat dissipation The longitudinal axis Y of device is extended in parallel, and the fin (18) of described group of second (15) and the longitudinal axis Y of the radiator are at angle γ Extend.
8. radiator according to claim 7, which is characterized in that 0 ° < γ < 90 °.
9. a kind of long-distance radio frequency unit with the radiator in any one of such as preceding claims 1 to 8.
10. long-distance radio frequency unit according to claim 9, which is characterized in that the radiator is in the remote radio frequency list Be arranged such that in member when the long-distance radio frequency unit is in its working condition, first group of (5) fin be vertically positioned at remaining set (6, 7) top of fin.
11. a kind of method of cooling heat producing equipment, which is characterized in that the method includes providing at least two groups to set with the heat production The standby airflow channel for keeping thermo-contact, each channel have inlet air region and outlet air region, wherein first group of the channel The difference in the inlet air region in the channel of the position and remaining set in the inlet air region and first group described The difference in the outlet air region in the channel of the position and remaining set in the inlet air region in channel arranges described the The longitudinal direction in one group of the channel and the longitudinal direction in second group of the channel extend in β angle, wherein β ≠ 0 degree, arrangement described the The longitudinal direction in the channel of the longitudinal direction and third group in one group of the channel extends in α angle, so that passing through the remaining set The hot-air that the outlet air region is left is prevented from passing through the institute that described first group respective inlet air region enters described first group State channel.
CN201380078759.5A 2013-08-16 2013-08-16 Enhancing structure for natural cooling radiator Active CN105453257B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/067176 WO2015022032A1 (en) 2013-08-16 2013-08-16 Enhanced structure for natural cooling heat sink

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CN105453257A CN105453257A (en) 2016-03-30
CN105453257B true CN105453257B (en) 2018-12-07

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107105595A (en) * 2016-02-19 2017-08-29 恩佐科技股份有限公司 Low blast demand, low noise, dynamical radiator are reached using radiator arrangement
CN106369674A (en) * 2016-09-14 2017-02-01 赵耀华 Novel hybrid-driven energy-saving air conditioning terminal
WO2021148140A1 (en) * 2020-01-24 2021-07-29 Huawei Technologies Co., Ltd. A heatsink with increased air flow

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CN101754644A (en) * 2008-12-01 2010-06-23 华为技术有限公司 Radiating device, radiator and equipment

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US5582240A (en) * 1994-09-19 1996-12-10 Motorola, Inc. Pneumatically coupled heat sink assembly
FI974293A0 (en) * 1997-11-21 1997-11-21 Muuntolaite Oy Kylelement Foer ojaemnt foerdelad vaermebelastning
US6668915B1 (en) * 1999-09-28 2003-12-30 Peter Albert Materna Optimized fins for convective heat transfer
CN101855722A (en) * 2008-09-08 2010-10-06 Abb技术有限公司 Heat sink
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