Background technology
Along with being widely used of air-conditioner, people for the requirement of household air-conditioner also more and moreHeight, air-conditioner inside is provided with multiple electronic devices and components conventionally, generally these electronics unitsDevice is integrated in air-conditioner outdoor unit, due in the running of air-conditioner, and electronic devices and componentsCan produce a large amount of heats, cause electronic devices and components temperature rise too high, this just can affect air-conditionerNormal work, and the life-span of reducing electronic devices and components, in prior art, are generally to pass through radiatorCome to lower the temperature to electronic devices and components, existing radiator generally includes substrate 100 and substrate 100On multiple row fin 200, each row includes multiple fins 200, in same row fin 200200 of two adjacent fins there is gap 300, by air-flow in gap 300 flowTake away heat, realize heat radiation.
But in existing radiator, see figures.1.and.2, the adjacent two row wings of each fin 200Sheet 200 is corresponding setting one by one, in two adjacent row fins 200, in a row fin 200Gap 300 is corresponding one by one with the gap 300 of another row fin 200, from heat transfer theory,In the time that air flows through the fin different from its temperature 200 surface, can form on fin 200 surfacesHave the temperature boundary layer of thermograde, the thickness of described temperature boundary layer is along air-flow directionConstantly thicken, thicker its interior thermograde of described temperature boundary layer is less, and heat-transfer effect morePoor, according to heat transfer by heat conduction formula:For heat flow, λ is for leadingHot coefficient, A is heat transfer area, and dt represents the temperature difference on infinitesimal thickness two sides, and dx represents infinitesimalThickness, in the prior art, air the gap 300 of radiator in, without hindrance passing through,Make temperature boundary layer thicker, thermograde is less, and heat-transfer effect has much room for improvement, in addition, althoughCan reach by reducing the mode of spacing of fin the object of attenuate boundary temperature layer, but its effectVery limited, and reduce spacing of fin and can make air flux in radiator reduce, single wing reducedThe heat transfer total amount of sheet, makes to increase number of fins and ensures the heat transfer total amount of radiator, therebyCause cost to increase.
Summary of the invention
Embodiments of the invention provide a kind of radiator and air-conditioner, can improve radiating efficiency.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of radiator, comprises substrate and multiple row fin, described in described multiple row fin is located at side by sideOn substrate, the described fin of arbitrary row includes the multiple fins that are arranged side by side, described in arbitrary rowIn fin, described in adjacent two, between fin, have gap, adjacent two row fins are staggered.
A kind of air-conditioner, comprises the radiator described in technique scheme.
Radiator provided by the invention and air-conditioner, described in adjacent two row of described radiatorFin is staggered, and makes in the adjacent described fin of two row, and air-flow is from the described fin of rowGap flow out, be listed as described fin by another and cut apart, form two strands of different air-flows of direction and enterDescribed another is listed as in the gap of described fin, in this process, and air-flow Unsteady stream mistake, andBe and in the gap of described fin, disturbance occur, air is not only along the direction of described fin surfaceMobile also flowing between fin described in adjacent two, thus the air in described gap is formed" turbulent flow ", according to heat transfer theory, when air flows through the described fin table different from its temperatureWhen face, can form the temperature boundary layer with thermograde, described temperature at described fin surfaceThe thickness in boundary layer constantly thickens along air-flow direction, and described temperature boundary layer is thinner in itThermograde larger, heat-transfer effect is better, the air of " turbulent flow " forming in described finCan make described temperature boundary layer reduced thickness, improve the temperature difference, make described fin and air stream interfaceTemperature difference dt increase, conduct heat according to heat transfer by heat conduction formula: Q=-λ A × (dt/dx), the temperature differenceDt increases, and the heat of the exchange between described fin and air increases, thereby makes described finHeat exchange efficiency is improved, and meanwhile, due to the dissection of described fin to air-flow, makes to bring about the desired sensationFlow Velocity reduces, and makes the heat exchange of air and described fin more abundant, is conducive to radiatorThe raising of radiating efficiency, meanwhile, compared to coming described in attenuate by reducing described spacing of finTemperature boundary layer mode, the solution of the present invention is more bright to the attenuate effect of described temperature boundary layerAobvious, and avoided the quantity that increases described fin to ensure the radiating efficiency of described radiator, haveBe beneficial to and reduce cost. Thus, can improve radiating efficiency.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present inventionCase is clearly and completely described, and obviously, described embodiment is only one of the present inventionDivide embodiment, instead of whole embodiment. Based on the embodiment in the present invention, this area is generalLogical technical staff is not making the every other embodiment obtaining under creative work prerequisite,All belong to the scope of protection of the invention, the arrow in each accompanying drawing is used for representing airflow direction.
In description of the invention, it will be appreciated that, term " " center ", " on ", D score,'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ",Orientation or the position relationship of the instruction such as " end ", " interior ", " outward " are based on shown in the drawingsOrientation or position relationship, be only the present invention for convenience of description and simplified characterization, instead of instructionOr the hint device of indication or element must have specific orientation, with specific orientation structure andOperation, therefore can not be interpreted as limitation of the present invention.
With reference to Fig. 3~Fig. 6, radiator provided by the invention comprises substrate 1 and multiple row fin 2,Multiple row fin 2 is located on substrate 1 side by side, and wherein, arbitrary row fin 2 includes side by side multipleThe fin 2 arranging, in arbitrary row fin 2,2 of adjacent two fins have gap 3, withTime, adjacent two row fins 2 are staggered.
In the radiator described in the present embodiment, because adjacent two row fins 2 are staggered, makeMust be in two adjacent row fins 2, air-flow flows out from the gap 3 of a row fin 2, by anotherRow fin 2 is cut apart, form two strands of different air-flows of direction enter described another row fin 2 betweenIn gap 3, in this process, air-flow Unsteady stream mistake, but with gap 3 at fin 2Middle generation disturbance, air not only flows along the direction on fin 2 surfaces, also at adjacent two fins 2Between flow, thereby make air in gap 3 form " turbulent flow ", according to heat transfer theory,In the time that air flows through the fin different from its temperature 2 surface, can form and have on fin 2 surfacesThe temperature boundary layer of thermograde, the thickness of described temperature boundary layer is continuous along air-flow directionThicken, thinner its interior thermograde of described temperature boundary layer is larger, and heat-transfer effect is better,The air of " turbulent flow " of fin 2 interior formation can make described temperature boundary layer reduced thickness, improvesThe temperature difference, increases fin 2 and the temperature difference dt at air stream interface, conducts heat according to heat transfer by heat conductionFormula: Q=-λ A × (dt/dx), temperature difference dt increases, the exchange between described fin and airHeat increase, thereby the heat exchange efficiency of fin 2 is improved, meanwhile, due to fin 2To the dissection of air-flow, air velocity is reduced, but do not reduce the flux of air, therebyMake the heat exchange of air and fin 2 more abundant, be conducive to carrying of radiator heat-dissipation efficiencyHeight, meanwhile, compared to carrying out the temperature boundary layer mode described in attenuate by reducing fin 2 spacing,The solution of the present invention is more obvious to the attenuate effect of described temperature boundary layer, and has avoided increaseThe quantity of fin 2, to ensure the radiating efficiency of described radiator, is conducive to reduce cost. Thus,Can improve radiating efficiency.
Concrete, the staggered mode of adjacent two row fin 2 has multiple:
(1), with reference to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 are radiator provided by the inventionThe first embodiment, by adjacent two row fins 2 one by one correspondence be arranged on substrate 1, and phaseTwo corresponding fins 2 setting of aliging with the bottom surface of substrate 1, meanwhile, adjacent two row fins 2Relative tilt, and be predetermined angular, described predetermined angular is not 0 °, i.e. adjacent two row fins2 is not parallel, makes the air flowing out from the gap 3 of a row fin 2 by an adjacent row wingSheet 2 cuts, thereby can form described " turbulent flow ", thereby improves radiating efficiency, concrete principleWith reference to narration above.
In described the first embodiment, in order to ensure that air is uniformly by each gap3, can make multiple fins 2 of same row be set in parallel on substrate 1, thereby make each gap3 are parallel to each other, and make air can pass through more uniformly different gaps 3, thereby make each fin2 is more even with the heat exchange of air, prevents that the temperature contrast of 2 of different fins is excessive.
Wherein, described radiator can comprise two row or the above multiple row fin 2 of two row, for example:Described radiator comprises the three row fins 2 that are arranged side by side, and the two row fins 2 that are positioned at both sides all inclineTiltedly be arranged on substrate 1, the row fin 2 in the middle of being positioned at is vertically installed on substrate 1, andThe two row fins 2 that are positioned at both sides are all described predetermined angular with a row fin 2 that is positioned at centre,Wherein, two row fins 2 of both sides can tilt in the same way, or reversed dip.
(2), with reference to Fig. 5 and Fig. 6, Fig. 5 and Fig. 6 are that the second provided by the invention is realExecute mode, wherein, in the described fin 2 of adjacent two row, the gap 3 of a row fin 2 is with anotherOne row fin 2 is corresponding one by one, makes the air flowing out from the gap 3 of a row fin 2 by anotherOne row fin 2 cuts, thereby can form described " turbulent flow ", thereby improves radiating efficiency, toolBody principle is with reference to narration above.
In described the second embodiment, each fin 2 all can be vertically installed on substrate 1,And make each gap 3 equal and opposite in directions, thus make air uniformly by each gap 3, ensure eachDescribed fin can Homogeneouslly-radiating.
In the various embodiments described above, the surface of fin 2 all can be plane (with reference to Fig. 3~Fig. 6)Or corrugated surface (not shown), in the time that the surface of fin 2 is corrugated surface, can increase wingThe contact area of sheet 2 and air, further improves heat exchange efficiency, meanwhile, and due to above-mentioned eachIn the radiator of embodiment, air, in the interior formation in gap 3 " turbulent flow ", can avoid air in instituteState the bottom of ripple and be detained, can make air more abundant with contacting of fin 2, be conducive to improveHeat exchange efficiency.
And be convenient to install for simplified structure, can make 4 fins 2 one-body molded with substrate 1.
A kind of air-conditioner, comprises the radiator described in above-mentioned arbitrary embodiment, due in this enforcementDescribed in the radiator using in air-conditioner described in example and the embodiment of above-mentioned radiatorRadiator is identical, and therefore, therefore the two can solve identical technical problem, and reaches identicalExpected Results.
The above be only the specific embodiment of the present invention, but protection scope of the present invention alsoBe not limited to this, any be familiar with those skilled in the art the present invention disclose technology modelIn enclosing, can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.