CN110198623A - Heat dissipation equipment and electric device - Google Patents
Heat dissipation equipment and electric device Download PDFInfo
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- CN110198623A CN110198623A CN201910602472.7A CN201910602472A CN110198623A CN 110198623 A CN110198623 A CN 110198623A CN 201910602472 A CN201910602472 A CN 201910602472A CN 110198623 A CN110198623 A CN 110198623A
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- heat dissipation
- diversion trench
- cooling fin
- along
- dissipation equipment
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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
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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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The present invention relates to cooling technical field of heat dissipation, in particular to a kind of heat dissipation equipment and electric device.Heat dissipation equipment of the invention, including bogey and cooling fin group, cooling fin group includes at least two the cooling fin on the first surface of bogey and being arranged at distances from one another being arranged in, between two adjacent cooling fins formation length direction along the direction for being parallel to first surface diversion trench, diversion trench is used to that the fluid for the heat for carrying cooled target to be guided to flow along the length direction of diversion trench, and effective flow area of diversion trench becomes smaller along the flow direction of fluid.Based on this, the heat dissipation effect of heat dissipation equipment can be effectively improved.
Description
Technical field
The present invention relates to cooling technical field of heat dissipation, in particular to a kind of heat dissipation equipment and electric device.
Background technique
With the rapid development of electronic technology, the calorific value of electronic component is increasing, power density is higher and higher, right
The heat dissipation performance of heat dissipation equipment requires higher and higher.However, the problem that existing heat dissipation equipment is poor there are still heat dissipation effect, difficult
To meet increasing radiating requirements.
Summary of the invention
A technical problem to be solved by this invention is: improving the heat dissipation effect of heat dissipation equipment.
In order to solve the above-mentioned technical problems, the present invention provides a kind of heat dissipation equipments comprising:
Bogey；With
Radiator, including cooling fin group, cooling fin group include at least two being arranged on the first surface of bogey
And the cooling fin being arranged at distances from one another, formation length direction is along the side for being parallel to first surface between two adjacent cooling fins
To diversion trench, diversion trench is used to that fluid to be guided to flow along the length direction of diversion trench, and effective flow area of diversion trench
Become smaller along the flow direction of fluid.
In some embodiments, two adjacent cooling fins are bringing together along the flow direction of fluid, so that diversion trench
Effective flow area become smaller along the flow direction of fluid；And/or the flow direction along fluid, the arrangement of cooling fin are close
Degree becomes larger, so that effective flow area of diversion trench becomes smaller along the flow direction of fluid.
In some embodiments, along the flow direction of fluid, radiator has at least two heat dissipations being sequentially distributed
Area, and wherein it is greater than the arrangement of cooling fin in adjacent upstream radiating area positioned at the arrangement density of cooling fin in the radiating area in downstream
Density.
In some embodiments, in the radiating area in downstream cooling fin arrangement density be positioned at most upstream radiating area
At least 2 times of middle cooling fin arrangement density.
In some embodiments, at least two radiating areas include the first heat dissipation being sequentially arranged along the flow direction of fluid
The arrangement density of cooling fin is respectively first in area, the second radiating area and third radiating area, the second radiating area and third radiating area
2 times and 3 times of cooling fin arrangement density in radiating area.
In some embodiments, the minimum widith of diversion trench is greater than 3mm.
In some embodiments, the length direction of diversion trench is along vertical direction.
In some embodiments, radiator further includes driving device, and driving device is for driving fluid along diversion trench
Length direction flowing.
In some embodiments, fluid includes air-flow, and driving device includes air supply device, and air supply device is used for certain driving air-flow
It is flowed along the length direction of diversion trench.
In some embodiments, air supply device includes at least one of the following:
Fan blowing is arranged in the upstream of diversion trench along air current flow direction；
Extractor fan is arranged in the downstream of diversion trench along air current flow direction；
Hair dryer is arranged in the upstream of diversion trench along air current flow direction；
Exhaust blower is arranged in the downstream of diversion trench along air current flow direction.
In some embodiments, radiator further includes cover, and cover covers at the separate first surface of cooling fin group
Side.
In some embodiments, the edge of cooling fin is greater than or equal to 10mm perpendicular to the size h in first surface direction.
In some embodiments, there is accommodating cavity, accommodating cavity is used to accommodate to be cooled down by radiator inside bogey
Cooled target, the outer surface of accommodating cavity includes first surface.
In some embodiments, cooling fin group and bogey are integrally formed.
Another aspect of the present invention additionally provides a kind of electric device comprising electronic component and heat dissipation of the invention are set
Standby, electronic component is cooled target and is arranged on the bogey of heat dissipation equipment.
In some embodiments, electric device includes air-conditioning.
Become smaller by the way that the diversion trench of radiator is configured to effective flow area along fluid flow direction, the present invention can
To be effectively improved the heat dissipation effect of heat dissipation equipment.
By the way that exemplary embodiment of the present invention is described in detail referring to the drawings, other feature of the invention and
Its advantage will become apparent.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 shows the schematic perspective view of first embodiment of the invention heat dissipation equipment.
Fig. 2 shows the explosive views of Fig. 1.
Fig. 3 shows the front view of the first plate body and cooling fin group in Fig. 2.
Fig. 4 shows the bottom view of Fig. 3.
Fig. 5 shows the schematic perspective view of cover in Fig. 2.
Fig. 6 shows the Comparison of experiment results figure of heat dissipation equipment shown in Fig. 1 Yu traditional heat-dissipating equipment.
Fig. 7 shows the explosive view of two embodiment heat dissipation equipments of the invention.
Fig. 8 shows the schematic perspective view of third embodiment of the invention heat dissipation equipment.
Fig. 9 shows the explosive view of Fig. 8.
Figure 10 shows the structural schematic diagram of fourth embodiment of the invention heat dissipation equipment.
Figure 11 shows the structural schematic diagram of fifth embodiment of the invention heat dissipation equipment.
In figure:
100, heat dissipation equipment；
1, bogey；11, the first plate body；12, the second plate body；13, third plate body；14, the 4th plate body；
2, radiator；21, cooling fin；22, cover；221, accommodating hole；222, the first connecting hole；223, the second connection
Hole；231, extractor fan；232, fan blowing；241, exhaust blower；242, hair dryer；
3, screw；
A, air-flow；11a, first surface；2a, diversion trench；
Z1, the first radiating area；Z2, the second radiating area；Z3, third radiating area.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are in no development creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
In the description of the present invention, it is to be understood that, components are limited using the words such as " first ", " second ", only
It is merely for convenience of distinguishing corresponding components, there is no Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore not
It can be interpreted as limiting the scope of the invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
During practicing the present invention, inventors have found that existing cold to the progress of the cooled target such as electronic component
But heat dissipation equipment, it is usually all prismatic for being used to guide the diversion trench for fluid (hot fluid) flowing for carrying heat, and
Cooling fin usually all lateral arrangement (in the horizontal direction arrange), these all restrict the improvement of heat dissipation effect.
For above situation, the present invention improves the structure of heat dissipation equipment, to improve heat dissipation effect, is promoted cooled
The job security of target.
Fig. 1-11 shows several embodiments of heat dissipation equipment of the present invention.Referring to Fig.1-11, heat dissipation provided by the present invention
Equipment 100, comprising:
Bogey 1；With
Radiator 2, including cooling fin group, cooling fin group include at least two first surfaces that bogey 1 is arranged in
11a is upper and the cooling fin 21 that is arranged at distances from one another, and formation length direction is along being parallel between two adjacent cooling fins 21
The diversion trench 2a in the direction of one surface 11a, diversion trench 2a are used to that fluid to be guided to flow along the length direction of diversion trench 2a, and lead
Effective flow area of chute 2a becomes smaller along the flow direction of fluid.
Different from the prismatic existing scheme of diversion trench 2a, diversion trench 2a is set variable cross-section by the present invention, and specific
It is set as effective flow area to become smaller along fluid flow direction, this can effectively increase heat exchange area, while be also beneficial to increase
Big flow velocity of the fluid in diversion trench 2a, therefore, can effective heat radiation equipment 100 heat exchange property, improve heat dissipation equipment
100 heat transfer effect.
In the present invention, effective flow area of diversion trench 2a refers to the area of the practical diversion trench 2a flowed through of fluid, one
As, when diversion trench 2a has regular cross-section, effective flow area of diversion trench 2a is diversion trench 2a cross-sectional area, and works as and lead
When chute 2a has irregular cross section, effective flow area of diversion trench 2a is the equivalent cross-sectional area of diversion trench 2a.
Wherein it is possible to take multiple means become effective flow area of diversion trench 2a along the flow direction of fluid
It is small.
For example, the flow direction that two adjacent cooling fins 21 can be arranged along fluid is bringing together.This feelings
Distance (i.e. the width of diversion trench 2a) edge under condition, since each cooling fin 21 is obliquely installed, and between two adjacent cooling fins 21
Fluid flow direction gradually become smaller, therefore so that the direction that diversion trench 2a is flowed along fluid is gradually narrowed, diversion trench 2a's
Effective flow area gradually becomes smaller along the flow direction of fluid.
For another example cooling fin group can be arranged are as follows: along the flow direction of fluid, the arrangement density of cooling fin 21 becomes
Greatly.This mode is led by changing the arrangement density of cooling fin 21 so that cooling fin 21 is gradually encrypted along fluid flow direction
The width of chute 2a is gradually reduced, so that effective flow area of diversion trench 2a is gradually reduced.
In another example can also be by the thickness of change cooling fin 21, so that the thickness of cooling fin 21 is along fluid flowing side
To thickeing, to reduce the width of diversion trench 2a, and then reduce effective flow area of diversion trench 2a.
Above-mentioned three kinds of modes, either by inclination arrangement cooling fin 21, or the density by increasing cooling fin 21, suppression
Or the thickness by increasing cooling fin 21, it is the width by narrowing diversion trench 2a, to reduce the effective logical of diversion trench 2a
Flow area.
It should be appreciated that can also in summary in three kinds of modes two or three, that is, can also be by taking inclination cloth
At least two in cooling fin 21, the density for increasing cooling fin 21 and increase by 21 thickness of cooling fin, three kinds of modes are set, are led to narrow
The width of chute 2a reduces effective flow area of diversion trench 2a.
Furthermore, it is desirable to explanation, in addition to that can be come by reducing the width of diversion trench 2a along fluid flow direction
Realize the purpose for reducing the effective flow area of diversion trench 2a, it can also be by making the depth of diversion trench 2a along fluid flow direction
Other means such as reduction, reduce effective flow area of diversion trench 2a along fluid flow direction.
And in order to further improve the heat dissipation effect of heat dissipation equipment 100, in some embodiments of the invention, will not only it lead
Chute 2a is set as variable cross-section, also that the arranged direction of cooling fin 21 is vertical by being laterally changed to, by changing cooling fin 21
Arranged direction, so that the length direction of diversion trench 2a is no longer along horizontal direction, but along vertical direction, due in this way can be with
The characteristics of hot fluid floats is better adapted to, therefore, hot fluid floating principle can be made full use of, Lai Tisheng heat exchange property changes
Kind heat transfer effect.
In addition, radiator 2 of the invention can further include driving device, driving device is for driving fluid along water conservancy diversion
The length direction of slot 2a flows.Based on set driving device, the radiating mode of heat dissipation equipment 2 is by Natural Heat Convection mode
Forced convertion radiating mode is changed into, the higher radiating requirements of cooled target can be preferably met, in particular, by being cut with change
The diversion trench 2a in face cooperates, and driving device can more effectively accelerate flowing velocity of the fluid in diversion trench 2a, more efficiently
It draws fluid from, therefore, can further improve heat dissipation effect.
Air-flow and liquid etc. can be employed as the fluid of cooling cooled target, wherein when fluid includes air-flow, driving dress
It sets and can wrap the air supply device flowed for certain driving air-flow along the length direction of diversion trench 2a.Also, it in the present invention, blows
Device may include blower and/or fan, wherein blower may include at least one of hair dryer and exhaust blower, fan
It may include at least one of fan blowing and extractor fan.
The present invention is further explained below with reference to each embodiment shown in Fig. 1-11.Arrow in Fig. 1-11
It is used to that the flow direction of air-flow a is shown.
Fig. 1-6 shows one embodiment of the invention.
As shown in figures 1 to 6, in this embodiment, heat dissipation equipment 100 includes bogey 1 and radiator 2, bogey
1 for carrying radiator 2 and cooled target, and for realizing the heat transfer between cooled target and radiator 2；It dissipates
Thermal 2 is then arranged on bogey 1, and for carrying out cooling heat to cooled target.
For the convenience of description, the surface equipped with radiator 2 of bogey 1 is known as first surface 11a.
Wherein, by 2 it is found that the bogey 1 of the embodiment is in hollow box body structure, inside has cold for accommodating
But the accommodating cavity of target, and radiator 2 is then arranged on the outer surface of accommodating cavity, so that bogey 1 can lead to when work
Its tank wall is crossed by the heat transfer of cooled target to radiator 2.It is appreciated that in this embodiment, the appearance of accommodating cavity
Face includes first surface 11a.
Specifically, as shown in Fig. 2, in this embodiment, bogey 1 includes the first plate body 11, the second plate body 12, third
Plate body 13 and the 4th plate body 14, this four pieces of plate bodys are enclosed hollow rectangular shape, wherein third plate body 13 and the 4th plate
Body 14 is located on vertical direction and is sequentially arranged at each interval along gravity direction, and the first plate body 11 and the second plate body 12 then connect
It is connected between third plate body 13 and the 4th plate body 14, forms the side of cuboid.More specifically, the first plate body 11 is U-shaped, and have
There are upper opening, under shed and side opening, the second plate body 12, third plate body 13 and the 4th plate body 14 are then in plate shaped and detain respectively
Together on the upper opening of the first plate body 11, under shed and side opening, so that bogey 1 becomes hollow and sealing cuboid box
Body structure.Cooled target is placed in bogey 1, and is located on the 4th plate body 14, is carried by the 4th plate body 14.
Wherein, the second plate body 12, third plate body 13 and the 4th plate body 14 can pass through the connectors such as screw 3 shown in Fig. 2
It is connect with the first plate body 11.Bogey 1 is whole can be made of aluminium or other highly heat-conductive materials, to improve heat transfer efficiency.
Radiator 2 is set on bogey 1, and is particularly located at the opposite with the second plate body 12 outer of the first plate body 11
On surface, in other words, the outer surface opposite with the second plate body 12 of the first plate body 11 is first surface 11a.
As shown in Figs. 1-5, in this embodiment, radiator 2 is vertically arranged, and including cooling fin group, cover 22 and takes out
Wind fan 231.
Wherein, cooling fin group includes multiple cooling fins 21, this multiple cooling fin 21 is vertically arranged in first surface 11a
On, i.e., the length direction of cooling fin 21 is spaced each other each along vertical direction, and between each cooling fin 21, so that abutting fins
Diversion trench 2a is formed between 21, and the length direction of diversion trench 2a is along vertical direction, is used in this way, diversion trench 2a can be guided
The air-flow a of cooling cooled target flows along vertical direction.
Since hot gas current density is smaller, under the action of buoyancy effect, can float upwards, therefore, existing lateral arrangement
Cooling fin 21 can not actually adapt to the characteristic of thermal current floating, can be formed and be stopped to the thermal current of floating, cause to influence to radiate
Effect, and the arrangement of cooling fin 21 is changed to be longitudinally arranged by the embodiment by lateral arrangement, since diversion trench 2a can be made
Length direction comply with the floating direction of thermal current, accelerate the velocity of discharge of thermal current, therefore, heat dissipation equipment can be given full play to
100 heat dissipation performance, is effectively improved heat dissipation effect.
Wherein, cooling fin group and bogey 1 can be separate structure, be fitted together by connection structure, alternatively, dissipating
Backing group can also be integrally formed with bogey 1 by modes such as extruding, casting, machinings, so that cooling fin group and carrying
Device 1 becomes one structure, and to further increase intensity, simplifies the assembling steps of heat dissipation equipment 100.
Also, in conjunction with Fig. 2 and Fig. 3 it is found that in this embodiment, along direction (and the flowing of air-flow a from the bottom to top
Direction), the arrangement density of cooling fin 21 is gradually increased in cooling fin group, and is specifically divided into from the bottom to top according to arrangement density difference
Three sections gradually encrypted, so that radiator 2 has three radiating areas being sequentially distributed from the bottom to top, respectively cooling fin is arranged
The first radiating area Z1, the second radiating area Z2 and the third radiating area Z3 that density is gradually increased.Wherein, the second radiating area Z2 and third
The arrangement density of cooling fin 21 is respectively 2 times and 3 times of the arrangement of cooling fin 21 density in the first radiating area Z1 in radiating area Z3.Base
In the setting, from the figure 3, it may be seen that along direction from the bottom to top, the width of diversion trench 2a (distance between adjacent two cooling fin 21,
It is the size of diversion trench 2a in left-right direction in Fig. 3) gradually narrow, effective flow area of diversion trench 2a gradually becomes smaller,
Since this can increase heat exchange area, while being conducive to increase convection transfer rate and heat transfer temperature difference and therefore can be effectively improved
Heat dissipation effect allows heat dissipation equipment 100 is more efficient reliably to control the temperature of cooled target in reasonable interval, prevents
There is thermal failure phenomenon because temperature rise is excessively high in the target that is only cooled, effectively promotes the performance of cooled target, extends cooled mesh
The target service life.
Since the arrangement density of cooling fin 21 in the second radiating area Z2 and third radiating area Z3 is respectively the first radiating area Z1
2 times and 3 times of the middle arrangement of cooling fin 21 density, therefore, the width D 2 and third radiating area of diversion trench 2a in the second radiating area Z2
The width D 3 of diversion trench 2a is respectively 1/2 and 1/3 of diversion trench 2a width D 1 in the first radiating area Z1 in Z3, that is, D1, D2 and D3
Between relationship are as follows: D3 < D2 < D1, andWherein, it in order to more effectively improve heat dissipation effect, leads
The minimum widith of chute 2a can be set to be greater than 3mm, specifically in this embodiment, that is, diversion trench 2a in third radiating area Z3
Width D 3 can be set to be greater than 3mm, i.e. D3 > 3mm.
In addition, as shown in figure 4, cooling fin 21 can also be set to big along the size h perpendicular to the direction first surface 11a
In or be equal to 10mm, i.e. h >=10mm, further to improve heat dissipation effect.
Cover 22 covers at the side of the separate first surface 11a of cooling fin group, is located remotely from first to diversion trench 2a
The notch of the surface side 11a is closed, and the runner flowed for air-flow a is formed.It, can be with cooling fin group by the way that cover 22 is arranged
Cooperation, preferably guidance air-flow a are flowed along the length direction of diversion trench 2a, and cover 22 can also be to each in cooling fin group
Cooling fin 21 plays a protective role, and prevents cooling fin 21 from being collided with, squeezed and impacted.
Extractor fan 231 is set to the top of cover 22, this is located at extractor fan 231 along the flow direction air-flow a
The downstream of diversion trench 2a accelerates heat so that during the work time, extractor fan 231 can aspirate the thermal current in diversion trench 2a
Air-flow discharge, so that heat dissipation equipment 100 is using the cooling cooled target of forced-convection heat transfer mode.As it can be seen that the pumping of the embodiment
Wind fan 231 is used as air supply device, flows in diversion trench 2a for certain driving air-flow a.
Specifically, in conjunction with Fig. 1, Fig. 2 and Fig. 5 it is found that cover 22 is the sheet metal component that cross section is in "Ji" type, top is set
There are multiple accommodating holes 221 and multiple first connecting holes 222, and is set on two horizontally extending bending edges of "Ji" type
There are multiple second connecting holes 223, wherein cover 22 is fixed on by the cooperation of the connectors such as screw 3 and the second connecting hole 223
On one surface 11a, and an extractor fan 231 is accommodated in each accommodating hole 221 respectively, and extractor fan 231 is connected by screw 3 etc.
The cooperation of fitting and the first connecting hole 222, is fixed in the top of cover 22.
At work, the heat of the cooled target inside bogey 1 passes through carrying to the heat dissipation equipment 100 of the embodiment
It in the conduction to cooling fin 21 of device 1, and is distributed by cooling fin 21 to bogey 1, since thermal current (carries cooled
Air-flow a) the density of target heat is smaller, is influenced to float by buoyancy effect, and therefore, thermal current is along vertically extending diversion trench 2a
Flowing, and under the swabbing action of extractor fan 231, it is quickly discharged via accommodating hole 221.
Above-mentioned thermal current along diversion trench 2a flow during, due to along thermal current flow direction (i.e. along
Direction from the bottom to top), from sparse to dense, diversion trench 2a is tapered for cooling fin 21, and therefore, heat exchange area A is gradually increased, air-flow a stream
Speed is gradually accelerated, and convection transfer rate h is gradually increased, in particular, tapered diversion trench 2a also cooperates with extractor fan 231, makes to take out
The swabbing action of wind fan 231 is gradually reinforced, this can not only further speed up flow velocity of the thermal current in diversion trench 2a, so that
Convection transfer rate h is further increased, simultaneously because thermal current can be extracted out more quickly in this case, therefore, may be used also
To make up the characteristic that heat transfer temperature difference Δ T is gradually reduced in thermal current floating-upward process, so that exchanging heat during thermal current rises
Temperature difference T reduces amplitude and can become smaller, even more so that heat transfer temperature difference Δ T can be increased during thermal current rises, and
According to Newtonian Cooling formula Q=h × A × Δ T it is found that in heat exchange area A, convection transfer rate h and heat transfer temperature difference Δ T etc.
When any one is increased, heat exchange amount Q can increase, so, the heat dissipation equipment 100 of the embodiment, due in extractor fan 231
And be vertically arranged and under the mating reaction of tapered diversion trench 2a, heat exchange area A, convection transfer rate h and heat transfer temperature difference Δ T are equal
Increase, therefore, heat exchange property can be obviously improved, improves heat dissipation effect, it is more efficient to be reliably prevented cooled target because of temperature
It is excessively high and thermal failure phenomenon occurs.
Specifically, as shown in fig. 6, by experiment test, using the heat dissipation equipment 100 of the embodiment, relative to traditional
Heat dissipation equipment can be such that the temperature of cooled target is greatly reduced, and improvement effect is obvious.In Fig. 6, abscissa dimensionless height
Refer to, the ratio between the height of C.G. H2 and overall height H 1 of heat dissipation equipment 100, that is,
As it can be seen that the first embodiment, the tapered diversion trench 2a being vertically arranged, can not only make full use of thermal current to float
Characteristic can also match and cooperate the Diffusion performance of the air supply devices such as extractor fan 231, effectively enhance filling for forced-convection heat transfer
Divide property, optimize the heat dissipation performance of heat dissipation equipment 100, improves the heat dissipation effect of heat dissipation equipment 100.
In addition to first embodiment shown in Fig. 1-6, the present invention also provides other embodiments as illustrated in figures 7-11.In order to
Simplify description, when describing embodiment shown in Fig. 7-11, the only difference of emphasis description and first embodiment, and to something in common
Then it is not described in detail.
Wherein, Fig. 7 shows second embodiment.As shown in fig. 7, the second embodiment and aforementioned first embodiment is main
Difference is, along the flow direction of air-flow a, is arranged the difference of density according to cooling fin 21, there are three radiator 2 no longer has
Radiating area, but only there are two radiating areas, respectively the first radiating area Z1 and the second radiating area Z2 for tool, wherein the second radiating area
The arrangement density of Z2 is 2 times of the first radiating area Z1 arrangement density.
It should be appreciated that the quantity of radiating area, it is not limited to two or three, but may be three or more, also,
Arrangement density positioned at the radiating area in the first radiating area Z1 (radiating area for being located at most upstream) downstream is also not limited to
It is 2 times or 3 times of the first radiating area Z1, in fact, the arrangement density for being located at cooling fin 21 in the radiating area in downstream can be position
At least 2 times of the arrangement of cooling fin 21 density in the radiating area of most upstream.
Fig. 8 and Fig. 9 show 3rd embodiment.As shown in Figure 8 and Figure 9, the 3rd embodiment and aforementioned first embodiment
The main distinction in place of be, in the 3rd embodiment, air supply device no longer uses extractor fan 231, but uses blowing
Fan 232, and fan blowing 232 is arranged in the upstream (i.e. the lower end of diversion trench 2a) of diversion trench 2a along the flow direction air-flow a.
Based on this, thermal current fan blowing 232 blow effect under, flowed up along diversion trench 2a.
In the present invention, air supply device be other than it can use the fans such as fan blowing 232 or extractor fan 231,
Blower can be used.Figure 10 and Figure 11 respectively illustrates the embodiment using blower.
Wherein, in the fourth embodiment shown in Figure 10, air supply device uses exhaust blower 241, and the exhaust blower 241 is along gas
The downstream (i.e. the upper end of diversion trench 2a) that the stream flow direction a is arranged in diversion trench 2a is carried out certain driving air-flow a and is existed by swabbing action
Flowing in diversion trench 2a from the bottom to top；And in the 5th embodiment shown in Figure 11, air supply device uses hair dryer 242, blows
Blower 242 is arranged in the upstream (i.e. the lower end of diversion trench 2a) of diversion trench 2a along the flow direction air-flow a, by blowing effect,
Carry out the flowing of certain driving air-flow a in diversion trench 2a from the bottom to top.
It should be noted that, although air supply device only includes fan blowing in each embodiment shown in Fig. 1-11
232, one in extractor fan 231, hair dryer 242 and exhaust blower 241, but in other embodiments (not shown), air-supply dress
Setting also may include two or more combinations in fan blowing 232, extractor fan 231, hair dryer 242 and exhaust blower 241,
For example, extractor fan 231 and fan blowing 232 can be respectively arranged in the upper and lower side of diversion trench 2a, or it is respectively arranged air draft
Machine 241 and hair dryer 242, for another example extractor fan 231 and hair dryer can also be respectively arranged in the upper and lower side of diversion trench 2a
242, alternatively, being respectively arranged exhaust blower 241 and fan blowing 232.
In addition, though bogey 1 is in cuboid, but in other realities in each embodiment shown in Fig. 1-11
It applies in example, bogey 1 can also be with the other shapes such as cylindrical.
In summary it is found that the present invention is by being arranged the tapered diversion trench being vertically arranged, and cooperate the effect of driving device,
It can be with the heat exchange property of heat radiation equipment 100.Heat dissipation equipment 100 of the invention is applied to the electrical dress such as current transformer and air-conditioning
It in setting, radiates, with high efficient and reliable can control electric device running temperature in reasonable interval range to electronic component
It is interior, electric device is reduced because temperature is excessively high, and the risk of thermal failure occurs.So the present invention also provides a kind of electric devices.
Wherein, electric device includes heat dissipation equipment 100 of the invention and the electronic component as cooled target, and electronic component is set
It sets on the bogey 1 of word heat dissipation equipment 100.Specifically, the accommodating cavity inside bogey 1 can be set in electronic component
In.
The foregoing is merely exemplary embodiment of the present invention, are not intended to limit the invention, all in spirit of the invention
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of heat dissipation equipment (100) characterized by comprising
Bogey (1)；With
Radiator (2), including cooling fin group, the cooling fin group include at least two settings in the bogey (1)
On first surface (11a) and the cooling fin (21) that is arranged at distances from one another, length is formed between the cooling fin (21) of adjacent two
Direction is spent along the diversion trench (2a) in the direction for being parallel to the first surface (11a), and the diversion trench (2a) is for guiding stream
Body is flowed along the length direction of the diversion trench (2a), and effective flow area of the diversion trench (2a) is along the fluid
Flow direction become smaller.
2. heat dissipation equipment (100) according to claim 1, which is characterized in that cooling fin (21) edge of adjacent two
The fluid flow direction it is bringing together so that stream of the effective flow area of the diversion trench (2a) along the fluid
Dynamic direction becomes smaller；And/or the flow direction along the fluid, the arrangement density of the cooling fin (21) becomes larger, so that described
Effective flow area of diversion trench (2a) becomes smaller along the flow direction of the fluid.
3. heat dissipation equipment (100) according to claim 2, which is characterized in that described along the flow direction of the fluid
Radiator (2) has at least two radiating areas being sequentially distributed, and the wherein cooling fin (21) in the radiating area in downstream
Density of arranging is greater than the arrangement density of cooling fin (21) in adjacent upstream radiating area.
4. heat dissipation equipment (100) according to claim 3, which is characterized in that the cooling fin in the radiating area in downstream
(21) arrangement density is at least 2 times of cooling fin (21) the arrangement density in the radiating area of most upstream.
5. heat dissipation equipment (100) according to claim 4, which is characterized in that at least two radiating area include along
The first radiating area (Z1), the second radiating area (Z2) and the third radiating area (Z3) that the flow direction of the fluid is sequentially arranged, institute
The arrangement density for stating cooling fin (21) in the second radiating area (Z2) and the third radiating area (Z3) is respectively first heat dissipation
2 times and 3 times of cooling fin (21) arrangement density in area (Z1).
6. heat dissipation equipment (100) according to claim 1, which is characterized in that the minimum widith of the diversion trench (2a) is big
In 3mm.
7. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the length of the diversion trench (2a)
Direction is along vertical direction.
8. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the radiator (2) further includes
Driving device, the driving device are used to that the fluid to be driven to flow along the length direction of the diversion trench (2a).
9. heat dissipation equipment (100) according to claim 9, which is characterized in that the fluid includes air-flow, the driving dress
It sets including air supply device, the air supply device is flowed for certain driving air-flow along the length direction of the diversion trench (2a).
10. heat dissipation equipment (100) according to claim 9, which is characterized in that the air supply device include in following extremely
It is one few:
Fan blowing (232), the upstream of the diversion trench (2a) is arranged in along the air current flow direction；
Extractor fan (231), the downstream of the diversion trench (2a) is arranged in along the air current flow direction；
Hair dryer (242), the upstream of the diversion trench (2a) is arranged in along the air current flow direction；
Exhaust blower (241), the downstream of the diversion trench (2a) is arranged in along the air current flow direction.
11. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the radiator (2) is also wrapped
It includes cover (22), the cover (22) covers at the side far from the first surface (11a) of the cooling fin group.
12. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the cooling fin (21) along hanging down
Directly the size h in the direction the first surface (11a) is greater than or equal to 10mm.
13. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the bogey (1) is internal
With accommodating cavity, the accommodating cavity is used to accommodate the cooled target cooling by the radiator (2), the accommodating cavity outside
Surface includes the first surface (11a).
14. -6 any heat dissipation equipment (100) according to claim 1, which is characterized in that the cooling fin group is held with described
It carries and sets (1) integrated molding.
15. a kind of electric device, including electronic component, which is characterized in that further include as described in claim 1-14 is any
Heat dissipation equipment (100), the electronic component are cooled target and bogey in the heat dissipation equipment (100) are arranged
(1) on.
16. electric device according to claim 15, which is characterized in that the electric device includes air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602472.7A CN110198623A (en) | 2019-07-05 | 2019-07-05 | Heat dissipation equipment and electric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602472.7A CN110198623A (en) | 2019-07-05 | 2019-07-05 | Heat dissipation equipment and electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110198623A true CN110198623A (en) | 2019-09-03 |
Family
ID=67755867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602472.7A Pending CN110198623A (en) | 2019-07-05 | 2019-07-05 | Heat dissipation equipment and electric device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110198623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475466A (en) * | 2019-09-23 | 2019-11-19 | 阳光电源股份有限公司 | A kind of air-cooled radiator and electrical equipment |
| CN110751883A (en) * | 2019-11-04 | 2020-02-04 | 湖南文理学院 | Word learning auxiliary memory device convenient for ordered arrangement |
-
2019
- 2019-07-05 CN CN201910602472.7A patent/CN110198623A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110475466A (en) * | 2019-09-23 | 2019-11-19 | 阳光电源股份有限公司 | A kind of air-cooled radiator and electrical equipment |
| CN110751883A (en) * | 2019-11-04 | 2020-02-04 | 湖南文理学院 | Word learning auxiliary memory device convenient for ordered arrangement |
| CN110751883B (en) * | 2019-11-04 | 2021-05-14 | 湖南文理学院 | Word learning auxiliary memory device convenient for ordered arrangement |
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