CN202374616U - Radiator for electronic or electrical product, flat panel display equipment and light-emitting diode (LED) lamp - Google Patents
Radiator for electronic or electrical product, flat panel display equipment and light-emitting diode (LED) lamp Download PDFInfo
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- CN202374616U CN202374616U CN2011203823962U CN201120382396U CN202374616U CN 202374616 U CN202374616 U CN 202374616U CN 2011203823962 U CN2011203823962 U CN 2011203823962U CN 201120382396 U CN201120382396 U CN 201120382396U CN 202374616 U CN202374616 U CN 202374616U
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Abstract
The utility model relates to a radiator for an electronic or electrical product, flat panel display equipment and a light-emitting diode (LED) lamp. The radiator comprises a substrate and at least one fin group, wherein each fin group comprises a plurality of fins, and each fin comprises a connecting part and a fin main body raised from the connecting part, and is combined with the substrate through the connecting part; the substrate and a fin material of each fin are made of metal, and at least one of the substrate and the fin material of each fin is an aluminum composite brazing sheet; the connecting part and the fin main body of each of a plurality of fins are formed by integrating single fin materials; and the fin groups are connected with the surface of the substrate through a brazing process.
Description
Technical field
The utility model relates to a kind of radiator, flat panel display equipment and LED lamp, and more particularly, the utility model relates to a kind of radiator, flat panel display equipment and LED lamp that is used for electronics or electric product.
Background technology
The radiator of electronics or electric product generally comprises substrate and fin, and adopts the higher materials such as copper alloy, aluminium alloy or magnesium alloy of conductive coefficient to process.The substrate of radiator and fin structure can be one-body molded, perhaps form respectively to fit together then.The integrate shaped type radiator is processed through technologies such as extruding, cutting or die casting, for example precise cutting type radiator, extrusion pressing type radiator, die-casting die radiator etc.; The assembly type radiator is processed through connecting substrate and fin, for example gear shaping type radiator, folding type radiator etc.
For radiator, improve the effective method of radiating efficiency and be the surface area that increases fin, or improve the tooth height of fin and the ratio of space width (being the distance between the adjacent fins).Usually realize through tooth height that increases fin or the space width that reduces fin.Yet, the size or the weight that reduce meeting increase radiator of the increase of fin tooth height and space width, and obviously increase manufacture difficulty and manufacturing cost.Under the prerequisite that does not increase heat sink size and weight, the tooth height of the surface area of increase fin or raising fin is the thickness that reduces fin with the unique method of the ratio of space width, thereby increases the quantity of fin.
But for integrate shaped type radiator (such as, extrusion pressing type radiator), the thickness of fin generally can only be reduced to a certain numerical value, and therefore, the ratio of tooth height and space width is usually less than 20.Be difficult to produce thinner fin with prior manufacturing method (such as machining, extruding or die casting), and can have significantly increased manufacturing cost.For the assembly type radiator, it can obtain the ratio of higher tooth height and space width, generally can reach 60, but its preparation method is complicated, with high costs, is not suitable for producing in enormous quantities.
Now, the development trend of electronics or electric product (for example, flat panel display equipment, LED lamp etc.) is light, thin, attractive in appearance, but its power capacity is in quick increase.This means to provide the heat sink conception that a kind of efficient is higher, volume is littler, weight is lighter simultaneously.Obviously, above-mentioned traditional heat sink conception can't satisfy such demand.
The utility model content
According to the nonrestrictive aspect of the utility model, a kind of Radiator and its preparation method is provided.This radiator has compact structure, can increase area of dissipation effectively, improves radiating efficiency greatly, can extensively satisfy the harsh day by day heat radiation requirement of electronics or electric product.
According to other aspects of the utility model, the utility model relates to a kind of radiator that is used for electronics or electric product, and said radiator comprises: substrate; With at least one fins set, each said fins set comprises a plurality of fins, and said fin comprises connecting portion and the fin main body of protruding from connecting portion, and said fin is through said connecting portion and said substrate bonded; Wherein, the fin material of said substrate and said fin all adopts metal to process, and in the fin material of said substrate and said fin at least one is aluminium composite brazing plate; Wherein, the connecting portion of said a plurality of fins and fin main body are one-body molded by monolithic fin material, and said at least one fins set is connected through soldering processes with the surface of said substrate.
In one embodiment, be furnished with at least one cooling duct in the said substrate, and said cooling duct is filled with flowable coolant.
In one embodiment, said fin main body is selected from least one in following along the cross section on the short transverse of fin: triangle, and rectangle, trapezoidal, shaped form.
In one embodiment, said fin main body is a linear along the cross section on the short transverse of fin, and it is tabular that said fin main body is flat, thin, and said fin main body is spaced apart from each other
In one embodiment, the thickness of said fin main body is that 0.01mm is to 1mm.
In one embodiment, said connecting portion periodic arrangement on said substrate.
In one embodiment, said fin main body has the cantilever arm that stretches out from its side surface.
In one embodiment, said cantilever arm is along being arranged to symmetrical distribution on the length direction of fin.
In one embodiment, said cantilever arm is along being arranged to be in staggered distribution on the length direction of fin.
In one embodiment, said cantilever arm distributes along being arranged to multirow on the short transverse of fin.
In one embodiment, be distributed with micro-protuberance on the surface of said fin.
In one embodiment, be coated with on the surface of said fin the higher thermal radiation coefficient material, or be processed into black or dark color.
Other aspects according to the utility model; The utility model relates to a kind of manufacturing approach that is used for the radiator of electronics or electric product; Said radiator comprises substrate and a plurality of fin; Said method comprising the steps of: a) select to be used for said substrate and the metal that is used for the fin material of said fin respectively, and in the fin material of said substrate and said fin at least one is aluminium composite brazing plate; B) monolithic fin material is configured as said a plurality of fin, said fin comprises connecting portion and the fin main body of protruding from said connecting portion; And c) utilize soldering processes with said fin and said substrate bonded.
In one embodiment, said step b) adopts bending technique that monolithic fin material is configured as said a plurality of fin.
In one embodiment, said fin main body is that flat, thin is tabular, and said fin main body is spaced apart from each other.
In one embodiment, at step a) and b) between have following steps: embossing is carried out on the surface of said fin material is handled and generate the micro-protuberance structure.
In one embodiment, at step a) and b) between have following steps: said fin material is carried out punching press, to generate from the cantilever arm structure of stretching out on the surface of said fin material.
In one embodiment, at step b) and c) between have following steps: the fins set that said a plurality of fins is cut into required size.
In one embodiment; Step c) further comprises said fin is fixed on the said substrate, and said fin that fixes and said substrate are put in the soldering oven, simultaneously temperature in the said soldering oven is risen to the required temperature of soldering; Thus, said fin is connected on the said substrate.
In one embodiment, after step c), said fin and said substrate are carried out final cleaning surfaces work.
In one embodiment, after step c), carry out following steps: the said fin of coated materials with having the higher thermal radiation coefficient perhaps is processed into black or dark color with said fin.
According to another aspect of the utility model, the utility model relates to a kind of flat panel display equipment, and said flat panel display equipment comprises above-described radiator.
According to another aspect of the utility model, the utility model relates to a kind of LED lamp, and said LED lamp comprises above-described radiator.
Description of drawings
The utility model will illustrate in greater detail with reference to preferred embodiment, wherein:
Fig. 1 is the cutaway view that illustrates according to the structure of the radiator of the embodiment of the utility model;
Fig. 2 a-2c illustrates the fin main body along the cutaway view on the short transverse of fin;
Fig. 3 a-3b is the stereogram that the profile that fin goes up along its length is shown;
Fig. 4 is the stereogram that illustrates according to the cantilever arm on the fin of the radiator of the embodiment of the utility model;
Fig. 5 is the cutaway view that the lip-deep micro-protuberance of fin is shown;
Fig. 6 is the cutaway view of coating that the lip-deep higher thermal radiation coefficient of fin is shown;
Fig. 7 is illustrated in the stereogram that is combined into different fins set on the substrate;
Fig. 8 is the block diagram that the manufacturing process of fin is shown;
Fig. 9 is the stereogram that the fins set of completion is shown;
Figure 10 is the stereogram that illustrates through the fin of embossing, punching press, bending;
Figure 11 is the block diagram that is connected technological process that fin and substrate are shown.
Embodiment
With reference now to accompanying drawing, describe the embodiment of the utility model, wherein same parts use identical Reference numeral from start to finish in each figure.
A non-restrictive illustrative property embodiment of the radiator of the utility model shows that in Fig. 1 wherein, radiator 1 comprises two primary clusterings, i.e. substrate 2 and fin 3.Describe conveniently for hereinafter, will be called the x direction of principal axis, be called the y direction of principal axis, be called the z direction of principal axis along the short transverse of fin 3 along the length direction of fin 3 along the thickness direction of fin 3.
The fin material of fin 3 is a sheet metal, and comprises the connecting portion 3a of periodic arrangement and the fin main body 3b that protrudes from connecting portion 3a.Fin main body 3b can have different shapes along the cross section on the z direction of principal axis, and for example triangle, rectangle, trapezoidal, shaped form etc. are shown in Fig. 2 a-2c.Preferably, fin main body 3b is a straight line vertical or that tilt along the cross section on the z direction of principal axis, and referring to Fig. 1, at this moment, it is tabular that said fin main body is flat, thin, is spaced apart from each other and preferably is parallel to each other.Connecting portion 3a is used to connect adjacent fin main body 3b, and closely combines with substrate 2.In some instances, connecting portion 3a can be point-like along the cross section on the z direction of principal axis, and referring to Fig. 2 b and Fig. 2 c, at this moment, connecting portion 3a carries out line with substrate 2 along the y direction of principal axis and contacts.The connecting portion 3a of fin 3 and fin main body 3b are one-body molded through operations such as bendings by monolithic fin material, are connected on the surface of substrate 2 through soldering processes then.
The fin material of substrate 2 and fin 3 adopts any suitable metal material to process, and preferably adopts the higher metal of conductive coefficient, for example aluminium, copper, magnesium etc. or its alloy.The metal material that is used for the fin material of substrate 2 and fin 3 can be identical, also can be different, and in the fin material of substrate 2 and fin 3 at least one adopts aluminium composite brazing plate to process.
Aluminium composite brazing plate is the aluminium ingot of the different-alloy rolling clad aluminium that forms that fits together, and to have one deck at least be brazing layer.For instance; For three layers of aluminium composite brazing plate; Three layers are followed successively by brazing layer, sandwich layer and following brazing layer from top to bottom, and brazing layer is used for fin brazed to substrate, and adopt such as the 4XXX aluminium alloy; Sandwich layer is used to increase intensity of radiator, and adopts such as alloy or other aluminium alloys such as 3XXX aluminium alloy, 1XXX aluminium alloys; For five layers of aluminium composite brazing plate; Five layers are followed successively by brazing layer, intermediate layer, sandwich layer, intermediate layer, following brazing layer from top to bottom; The materials of brazing layer and sandwich layer and three layers of aluminium sheet are similar, and the intermediate layer is used to improve the corrosion resistance of radiator, and adopt such as 5XXX aluminium alloy or other alloys.Wherein, According to the definition of GB/T 16474-1996 for the aluminium alloy trade mark; 1XXX representes fine aluminium (aluminium content is not less than 99.00%); 3XXX representes with manganese to be the aluminium alloy of main alloy element, and 4XXX representes with silicon to be the aluminium alloy of main alloy element, and 5XXX representes with magnesium to be the aluminium alloy of main alloy element.
Under not by the prerequisite of theory, the applicant thinks that fin can be used for improving radiating efficiency.The geometric parameter of fin 3 (comprising tooth height, space width etc.) can change according to the difference of radiating requirements; Wherein, Tooth height is meant along the z direction of principal axis from substrate 2 surface to the vertical distance the top of fin 3, and space width is meant the horizontal range between the central vertical straight axis of two adjacent fins 3.
Shown in Fig. 3 a-3b, have better heat conductivity between fin and the air-flow in order to make, fin 3 can have different profiles, for example linear pattern, waveform etc. along the y direction of principal axis.
As shown in Figure 4, can on the left and right sides of fin main body 3b, produce a series of less cantilever arms 4 through Sheet Metal Forming Technology, said cantilever arm 4 stretches out from the side surface of fin main body, and on side surface, stays corresponding opening 5.The cantilever arm 4 of fin 3 and opening 5 have increased total area of dissipation of fin 3 on the one hand, help flowing of air-flow on the other hand, promote the efficient of carried away by air movement heat.According to the needs of reality, cantilever arm 4 can be arranged to be symmetrically distributed or be in staggered distribution along the y direction of principal axis, and can be arranged to the multirow distribution along the z direction of principal axis.
As shown in Figure 5, in order further to improve radiating efficiency, the whole surface of fin 3 can have micro-protuberance 6, so that fully carry out heat exchange.Micro-protuberance 6 can be processed through embossed technology, and manufacturing cost is lower.Micro-protuberance 6 can be designed to different shape, for example triangle, rectangle, arc and irregularly shaped etc.In addition, as shown in Figure 6, the whole surface of fin 3 can be coated with the material 7 of higher thermal radiation coefficient (such as graphite etc.), or be processed into black or dark color, to increase thermal radiation effect.
As shown in Figure 7, on substrate 2, fin 3 can be divided into different fins set.Layout between each fins set analog result design of can dispelling the heat promoting the thermal conductivity between fin 3 and the air-flow better, and helps simple installation.
Introduce the manufacture method of radiator of the foregoing description of the utility model now.The manufacturing process of fin 3 at first is described, referring to Fig. 8.In step 801, select to be used for the fin material of fin 3 according to Application Of Radiator occasion and requirement of client (such as corrosion resistance, intensity etc.), comprise the number of plies, material, and the length, width, thickness etc. of sheet metal.In step 802, the fin material is carried out embossing handle, to generate the micro-protuberance structure of desired density on the surface of sheet material.The fin material that subsequently, will have a micro-protuberance cuts into required width along the x direction of principal axis.In step 803, the fin material is carried out punching press, stretch out in the cantilever arm structure of plate surface with generation.Cantilever arm along the y direction of principal axis can aligned fashion, or be in staggered distribution, and can be arranged to multirow along the z direction of principal axis and distribute.In step 804, along geometric parameters such as the axial shape of cross section of z, tooth height, space widths, monolithic fin material is configured as connecting portion 3a and from the fin main body 3b of connecting portion protrusion through bending technique according to desired fin.At last, in step 805, fin 3 is cut into required length along the y direction of principal axis, thereby form a plurality of fins set, as shown in Figure 9.It is to be noted if the fin of said design does not comprise micro-protuberance or cantilever arm, then in the manufacturing process of fin, can save corresponding step 802 or 803.
Figure 10 shows the fins set of operations such as accomplishing embossing, punching press, bending, and said fins set will be connected on the substrate 2 through soldering processes subsequently.Referring to Figure 11.In step 1101, select to be used for the sheet metal of substrate 2 according to Application Of Radiator occasion and requirement of client, comprise the number of plies of sheet material, layers of material and length, width, thickness, and whether be furnished with cooling duct etc. in the sheet material.It is pointed out that in substrate 2 and the fin 3 at least one processed by aluminium composite brazing plate.In step 1102, by required layout, with one or more fins set with the anchor clamps simple fixation to substrate 2, and the connecting portion 3a of fin closely combines with substrate 2.In step 1103, put fins set that fixes and substrate 2 in the soldering oven into, simultaneously temperature in the stove is risen to the required temperature of soldering (promptly be higher than the brazing layer fusing point, be lower than the temperature of intermediate layer or sandwich layer fusing point).Fins set is connected on the substrate through soldering processes, forms radiator 1.In step 1104, radiator 1 is carried out cleaning surfaces work, in addition, on the surface of fin 3, can apply the higher thermal radiation coefficient material (such as graphite), or can be processed into black or dark color.It is pointed out that if fin is not designed to apply the material of higher thermal radiation coefficient or be processed into black or dark color, then in the manufacturing process of radiator, can save the corresponding operating in the step 1104.
The radiator of the embodiment of the utility model is compared with the radiator of prior art, on heat dispersion and manufacturing cost, has remarkable advantages.
At first, the manufacturing approach of the radiator of the embodiment of the utility model is simple.Fin is at room temperature one-body molded through technologies such as bendings by the fin material, is connected on the substrate through existing ripe soldering processes subsequently.Above manufacturing process is suitable for large-scale continuous production, and the direct benefit of being brought is exactly a low cost of manufacture.
In addition; The structures such as coating that the fin of the radiator of the embodiment of the utility model is easy to add micro-protuberance, cantilever arm and higher thermal radiation coefficient through technologies such as embossing, punching press and coatings; These structures have promoted the sufficient heat exchange between fin surface and the air-flow, have promoted radiating efficiency.And for traditional heat radiator fin, if the structures such as coating that will add micro-protuberance, cantilever arm and higher thermal radiation coefficient, needed complex process many.
Secondly, in the radiator of the embodiment of the utility model, the major parameter relevant with radiating efficiency (the for example tooth height of fin, space width etc.) can be adjusted arbitrarily according to design demand, and can not receive the restriction of manufacturing process.
Because the fin of the embodiment of the utility model is formed through bending technique by sheet metal, therefore, the thickness of fin main body can easily reach the about 1mm of about 0.1mm-even be 0.01mm.This provides than the ratio of the much higher tooth height of traditional radiator with space width.For traditional integrate shaped type radiator, the ratio of tooth height and space width is generally less than 20; For traditional interconnection system radiator, the ratio of tooth height and space width is generally less than 60.And the tooth height of the radiator of the embodiment of the utility model and space width are than can be up to 100-500 even more.Therefore, the area of dissipation of the radiator of the embodiment of the utility model has obtained increasing significantly, for instance, compares with the conventional extruded type radiator of same size, and the area of dissipation of the embodiment of the utility model can increase 25%-500%.Therefore, the radiating efficiency of the radiator of the embodiment of the utility model is greatly improved.
At last, the heat spreader structures of the embodiment of the utility model is compact, compares with traditional radiator that size is littler, weight is lighter, and the use amount of material is also corresponding to be reduced.Cramped construction is that various designs provide the bigger degree of freedom, has satisfied the development trend of current electronic and electrical equipment (such as flat panel display equipment, LED lamp etc.), that is, and and most important element in the frivolous design that becomes next-generation attractive in appearance.
Though the utility model is described with reference at least one embodiment, the utility model can also be changed in disclosed scope and utility model spirit.So the application is intended to cover any modification according to the utility model rule, uses and transforms.In addition, the application is intended to cover those and belongs to the utility model, open in this article but the scheme that belongs to general knowledge known in this field, and falls into the scheme within the accompanying claims restriction.
Claims (14)
1. a radiator that is used for electronics or electric product is characterized in that, said radiator comprises:
Substrate; With
At least one fins set, each said fins set comprises a plurality of fins, said fin comprises connecting portion and the fin main body of protruding from connecting portion, and said fin is through said connecting portion and said substrate bonded;
Wherein, the fin material of said substrate and said fin all adopts metal to process, and in the fin material of said substrate and said fin at least one is aluminium composite brazing plate;
Wherein, the connecting portion of said a plurality of fins and fin main body are one-body molded by monolithic fin material, and said at least one fins set is connected through soldering processes with the surface of said substrate.
2. radiator according to claim 1 is characterized in that, is furnished with at least one cooling duct in the said substrate, and said cooling duct is filled with flowable coolant.
3. radiator according to claim 1 is characterized in that, said fin main body is selected from least one in following along the cross section on the short transverse of fin: triangle, and rectangle, trapezoidal, shaped form.
4. radiator according to claim 1 is characterized in that, said fin main body is a linear along the cross section on the short transverse of fin, and it is tabular that said fin main body is flat, thin, and said fin main body is spaced apart from each other.
5. radiator according to claim 4 is characterized in that, the thickness of said fin main body is that 0.01mm is to 1mm.
6. radiator according to claim 1 is characterized in that said connecting portion is periodic arrangement on said substrate.
7. according to each described radiator in the claim 1 to 6, it is characterized in that said fin main body has the cantilever arm that stretches out from its side surface.
8. radiator according to claim 7 is characterized in that, said cantilever arm is along being arranged to symmetrical distribution on the length direction of fin.
9. radiator according to claim 7 is characterized in that, said cantilever arm is along being arranged to be in staggered distribution on the length direction of fin.
10. radiator according to claim 7 is characterized in that, said cantilever arm distributes along being arranged to multirow on the short transverse of fin.
11. according to each described radiator in the claim 1 to 6, it is characterized in that, be distributed with micro-protuberance on the surface of said fin.
12. according to each described radiator in the claim 1 to 6, it is characterized in that, be coated with on the surface of said fin the higher thermal radiation coefficient material, or be processed into black or dark color.
13. a flat panel display equipment, said flat panel display equipment comprise according to the described radiator of arbitrary claim among the claim 1-12.
14. a LED lamp, said LED lamp comprise according to the described radiator of arbitrary claim among the claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203823962U CN202374616U (en) | 2011-09-29 | 2011-09-29 | Radiator for electronic or electrical product, flat panel display equipment and light-emitting diode (LED) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203823962U CN202374616U (en) | 2011-09-29 | 2011-09-29 | Radiator for electronic or electrical product, flat panel display equipment and light-emitting diode (LED) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374616U true CN202374616U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203823962U Expired - Fee Related CN202374616U (en) | 2011-09-29 | 2011-09-29 | Radiator for electronic or electrical product, flat panel display equipment and light-emitting diode (LED) lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588088A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Radiator for LED working condition lamp |
| CN105793647A (en) * | 2013-12-11 | 2016-07-20 | Nec照明株式会社 | Lighting equipment |
| CN113133264A (en) * | 2019-12-30 | 2021-07-16 | 惠州视维新技术有限公司 | Heat dissipation structure, manufacturing method of heat dissipation structure and display device |
-
2011
- 2011-09-29 CN CN2011203823962U patent/CN202374616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105793647A (en) * | 2013-12-11 | 2016-07-20 | Nec照明株式会社 | Lighting equipment |
| CN105588088A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Radiator for LED working condition lamp |
| CN113133264A (en) * | 2019-12-30 | 2021-07-16 | 惠州视维新技术有限公司 | Heat dissipation structure, manufacturing method of heat dissipation structure and display device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20140929 |
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| EXPY | Termination of patent right or utility model |