CN103717393B - Thermal component precoating aluminum alloy plate and use its thermal component - Google Patents

Thermal component precoating aluminum alloy plate and use its thermal component Download PDF

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Publication number
CN103717393B
CN103717393B CN201280028383.2A CN201280028383A CN103717393B CN 103717393 B CN103717393 B CN 103717393B CN 201280028383 A CN201280028383 A CN 201280028383A CN 103717393 B CN103717393 B CN 103717393B
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China
Prior art keywords
thermal component
film
alloy plate
thermal
aluminum alloy
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Expired - Fee Related
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CN201280028383.2A
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Chinese (zh)
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CN103717393A (en
Inventor
城户孝聪
渡边贵道
道木隆德
富田直隆
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UACJ Corp
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UACJ Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention provides a kind of thermal component precoating aluminum alloy plate 1 and use its thermal component 5, this thermal component precoating aluminum alloy plate 1 has aluminium alloy plate 10, be formed at wherein one side on the 1st film 11 and the 2nd film 12 that is formed on another side.Wherein, the 1st film 11 has the thermal diffusivity more excellent than the surface of aluminium alloy plate 10, and the 2nd film 12 has by heating the adhesion function being dissolved or soften as sticker.The structure of the 1st film 11 can contain thermal diffusivity material in the 1st matrix resin, and wherein, the softening point of the 1st matrix resin, more than 150 DEG C, is made up of at least one be selected from polyurethane resin, vistanex, epoxy resin, fluororesin, mylar.

Description

Thermal component precoating aluminum alloy plate and use its thermal component
Technical field
The present invention is about a kind of thermal component precoating aluminum alloy plate and the thermal component that uses it to make, and this precoating aluminum alloy plate is suitable as a kind of material of the thermal component for making the heat radiation such as the electrical equipment that promotes ligthing paraphernalia.
Background technology
Along with the high performance of such as LED, be that the ligthing paraphernalia of light source achieves practical with LED.In such ligthing paraphernalia, possesses a kind of thermal component fin being integrally formed in order to promote to dispel the heat.Traditional thermal component, uses a kind of forged article or the casting piece that possess the aluminium alloy of fin as Patent Document 1 integratedly more.
Prior art document
Patent document
Patent document 1: JP 2010-73654 publication
Summary of the invention
Invent problem to be solved
The conventional heat sink be made up of forged article or the casting piece of aluminium alloy, although can guarantee thermal diffusivity in a way, it is heavy, productivity is low and possess higher cost.Therefore, expect to develop and a kind ofly can play identical or higher thermal diffusivity with conventional heat sink, and the thermal component that weigh light, cost are low.
In view of above-mentioned background, the invention provides and a kind ofly can form excellent radiation performance and the material of the thermal component of weigh light, and the weigh light using this material to make and the low thermal component of cost.
The method of dealing with problems
An embodiment of the invention are a kind of thermal component precoating aluminum alloy plates, its be there is aluminium alloy plate, be formed at wherein one side on the 1st film and be formed at the precoating aluminum alloy plate of the 2nd film on another side, it is characterized in that,
Above-mentioned 1st film, has the thermal diffusivity more excellent than the surface of above-mentioned aluminium alloy plate;
Above-mentioned 2nd film, is had and is dissolved or the softening adhesion function as sticker by heating.
Other embodiments of the present invention are a kind of thermal components, and it is the bottom surface sections possessing the composition surface had for engaging miscellaneous part, and erect the thermal component of the fin portions arranged from this bottom surface sections, it is characterized in that,
Above-mentioned bottom surface sections and above-mentioned fin portions, consisted of the above-mentioned thermal component precoating aluminum alloy plate of bending process;
The above-mentioned composition surface of above-mentioned bottom surface sections, is made up of the face with above-mentioned 2nd film.
Another other embodiments of the present invention are a kind of thermal components, and it is that above-mentioned thermal component precoating aluminum alloy plate is bent into undulatory thermal component along multiple bending starting line, it is characterized in that,
Form the end side in direction at above-mentioned bending starting line, there is the engagement end portion for engaging miscellaneous part.
The effect of invention
Above-mentioned thermal component precoating aluminum alloy plate, has the 1st film of fine heat radiation property as above, and has the 2nd film of above-mentioned adhesion function.Therefore, to be contacted with miscellaneous part by the face that makes to have above-mentioned 2nd film and heat, play the function of above-mentioned 2nd film as sticker, the integration of thermal component and the above-mentioned miscellaneous part using above-mentioned thermal component precoating aluminum alloy plate to form can be realized easily.Thus, the superior heat radiation of above-mentioned 1st film of the thermal component formed by utilizing above-mentioned thermal component precoating aluminum alloy plate, can discharge the heat that miscellaneous part produces effectively.
And above-mentioned thermal component precoating aluminum alloy plate possesses the above-mentioned aluminium alloy plate as matrix material, its highly processable, desired shape can be processed into easily.Therefore, for needing to improve for the object of heat dissipation characteristics and miscellaneous part (parts of the electrical equipment of ligthing paraphernalia these other etc.), optimum shape can be processed into easily.
And above-mentioned thermal component precoating aluminum alloy plate, the application about above-mentioned 1st film and the 2nd film also can be implemented by continuously acting production lines in a large number, efficiently.So working (machining) efficiency high cost is cheap.
And, above-mentioned thermal component precoating aluminum alloy plate, also only it can used as former state with tabular under the state of the surface mount of object, even if in this case, also can utilize the excellent thermal diffusivity of above-mentioned 1st film and effectively discharge the heat transmitted from miscellaneous part.
And, formed the such above-mentioned thermal component of above-mentioned bottom surface sections and fin portions by bending process above-mentioned thermal component precoating aluminum alloy plate, as mentioned above, be made up of the faying face of bottom surface sections the face with above-mentioned 2nd film.Like this, use the adhesion function of above-mentioned 2nd film easily miscellaneous part and bottom surface sections can be carried out integration, also easily can obtain above-mentioned fin portions is erect the state arranged.Further, due to the existence of fin portions, the surface area of above-mentioned 1st film can be made to increase, thus obtain excellent thermal diffusivity.
In addition, even if on the undulatory thermal component formed bending above-mentioned thermal component precoating aluminum alloy plate along multiple bending starting line, the surface area of above-mentioned 1st film also can be made to increase, thus obtain excellent thermal diffusivity.And have the thermal component of the engagement end portion for engaging miscellaneous part in the end side in above-mentioned bending starting line formation direction, the surface area of its corrugated side becomes large, can improve the thermal diffusivity from side.
Further, when engaging with miscellaneous part, such as, the engagement end portion of above-mentioned thermal component is configured on miscellaneous part and heats.Thus, above-mentioned 2nd film of above-mentioned thermal component dissolves or softening at least partially, dissolves or the 2nd film that softened expands on miscellaneous part due to the weight of self.Further, by cooling, to dissolve or the 2nd film that softened is hardened, thus miscellaneous part and thermal component can be made simply to engage.
Accompanying drawing explanation
Fig. 1 is the key diagram of the structure representing thermal component precoating aluminum alloy plate in embodiment 1.
Fig. 2 is the key diagram representing the fin portions of thermal component and the curved shape of bottom surface sections in embodiment 1.
The key diagram of state when Fig. 3 is viewed from the opposition side of the bottom surface sections representing thermal component from embodiment 1.
Fig. 4 is the key diagram representing the cylinder lamp structure having installed thermal component in embodiment 1.
Fig. 5 is the key diagram representing in embodiment 1 thermal component being tacky state with miscellaneous part.
Fig. 6 is the key diagram representing the fin portions of thermal component and the curved shape of bottom surface sections in embodiment 2.
The key diagram of state when Fig. 7 is viewed from the opposition side of the bottom surface sections representing thermal component from embodiment 2.
Fig. 8 is the key diagram representing the cylinder lamp structure having installed thermal component in embodiment 2.
Fig. 9 is the key diagram representing in embodiment 2 thermal component being tacky state with miscellaneous part.
Figure 10 is the key diagram representing the cylinder lamp structure having installed thermal component in comparative example 1.
Figure 11 is the key diagram of the assessment result representing embodiment 1,2 and comparative example 1.
Figure 12 is the oblique view representing the thermal component engaged with substrate in embodiment 12.
Figure 13 is the top view representing the thermal component engaged with substrate in embodiment 12.
Figure 14 is the side view representing the thermal component engaged with substrate in embodiment 12.
Figure 15 is the amplification key diagram of the partial cut-away of the radial direction representing cylindric thermal component in embodiment 12.
Figure 16 is the key diagram representing the cylinder lamp structure having installed thermal component in embodiment 12.
Figure 17 is the key diagram of the section structure representing in embodiment 12 thermal component being tacky state with miscellaneous part.
Detailed description of the invention
As the above-mentioned matrix material of thermal component precoating aluminum alloy plate and the material of aluminium alloy plate, 1000 series, 3000 series can be used, material that 5000 series, 6000 series etc. are applicable to processing and forming.Such as, 1050,8021,3003,3004,3104,5052,5182,5N01 etc.Although the thickness of slab of aluminium alloy plate is not particularly limited, from the viewpoint easily manufacturing and process, be preferably 0.3mm ~ 1.5mm.
In above-mentioned thermal component precoating aluminum alloy plate, above-mentioned 1st film is the structure that can contain thermal diffusivity material in the 1st matrix resin, wherein, the softening point of the 1st matrix resin, more than 150 DEG C, is made up of at least a kind in the mylar being selected from fluororesin, the polyurethane resin of number-average molecular weight 10000 ~ 40000, the vistanex of number-average molecular weight 10000 ~ 40000, the epoxy resin of number-average molecular weight 1000 ~ 15000, number-average molecular weight 10000 ~ 40000.
That is, the matrix resin as above-mentioned 1st film can use the synthetic resin of softening point more than 150 DEG C.Like this, even if also can prevent when heating the 2nd film makes it dissolve or softens the 1st film from dissolving easily or soften.Preferably, the softening point of the matrix resin of the 1st film is more than 170 DEG C, more preferably more than 200 DEG C.In addition, from the easness obtained, the matrix resin of above-mentioned 1st film can use the synthetic resin of softening point less than 300 DEG C.
And above-mentioned 1st film can use the synthetic resin of each above-mentioned number-average molecular weight scope.Owing to using the synthetic resin with this scope number-average molecular weight, the formability of film easily can be guaranteed.When the number-average molecular weight of each synthetic resin does not reach the lower numerical limit of defined, film likely hardening, formability is deteriorated, and on the other hand, when exceeding the limit value of defined, film likely excessively soft, invulnerability reduces.
And fluororesin as above can be used as above-mentioned 1st film, and the molecular weight of fluororesin is not particularly limited, and can adopt the industrial fluororesin obtained in scope.From the viewpoint obtaining easness, the molecular weight of preferred fluororesin is 50,000 ~ 10,000,000.
In addition, as vistanex, such as, polyvinyl resin, acrylic resin etc. can be used.
And above-mentioned 1st film can one kind or two or more containing as in the titanium oxide of above-mentioned thermal diffusivity material, carbon, silica, aluminium oxide, zirconia.By adopting these materials as above-mentioned thermal diffusivity material, the thermal diffusivity of above-mentioned 1st film easily can be improved.
The characteristic of above-mentioned 1st film thermal diffusivity, can be assessed by ultrared integrated emissivity.Such as, preferably the infrared ray integrated emissivity of above-mentioned 1st film is adjusted to more than 70%.Like this, stable heat dissipation characteristics can be obtained.Infrared ray integrated emissivity can be measured by the infrared emission amount of FI-IR comparative sample and ideal black-body.In addition, the infrared ray integrated emissivity of aluminium alloy plate is generally 15 ~ 18%.
And, in above-mentioned 1st film, relative to above-mentioned 1st matrix resin of 100 weight portions, can containing being selected from 0.5 ~ 200 weight portion and average grain diameter is titanium oxide, 0.5 ~ 25 weight portion and in the carbon element of fine powder, in the zirconia of the silica of 0.5 ~ 200 weight portion, the aluminium oxide of 0.5 ~ 200 weight portion and 0.5 ~ 200 weight portion at least a kind of 0.1 ~ 100 μm.
That is, time in above-mentioned 1st film containing titanium oxide, its average grain diameter is preferably in the scope of 0.1 ~ 100 μm.Thus, the particle of titanium oxide can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
And time in above-mentioned 1st film containing titanium oxide, its amount is preferably 0.5 ~ 200 weight portion relative to above-mentioned 1st matrix resin of 100 weight portions.Thus, the particle of titanium oxide can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
And, as the carbon of above-mentioned attritive powder, the carbon that average grain diameter is 1nm ~ 500nm can be used.In addition, in above-mentioned 1st film, 0.5 ~ 25 weight portion is preferably containing the amount in carbon situation.Thus, carbon particle can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
And, as above-mentioned silica, such as, average grain diameter can be used to be the silica of 0.1 ~ 100 μm.In addition, in above-mentioned 1st film, 0.5 ~ 200 weight portion is preferably containing amount when silica.Thus, the particle of silica can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
And, as above-mentioned aluminium oxide, such as, average grain diameter can be used to be the aluminium oxide of 0.1 ~ 100 μm.In addition, in above-mentioned 1st film, contain amount preferably 0.5 ~ 200 weight portion when aluminium oxide.Thus, the particle of aluminium oxide can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
And, as above-mentioned zirconia, such as, average grain diameter can be used to be the zirconia of 0.1 ~ 100 μm.In addition, in above-mentioned 1st film, 0.5 ~ 200 weight portion is preferably containing the amount in zirconic situation.Thus, zirconic particle can be suppressed to be coated with UF membrane from the 1st and to come off the generation of this undesirable condition, thus stable thermal diffusivity can be improved.
In addition, the thickness of above-mentioned 1st film, such as, can be 0.5 ~ 100 μm.
And, above-mentioned 2nd film can contain the 2nd matrix resin, wherein, the softening point of the 2nd matrix resin is less than 150 DEG C, forms by be selected from acrylic resin, polyurethane resin, ionomer resin, vistanex, epoxy resin, mylar one kind or two or more.In this case, because softening point is less than 150 DEG C, so impel heating during above-mentioned 2nd film performance adhesion function to implement at relatively low temperatures.By adjusting the number-average molecular weight of each resin, the adjustment of this softening point can be realized with comparalive ease.More preferably, the softening point of above-mentioned 2nd film can be less than 140 DEG C.In addition, the lower limit of softening point, from response inhabitation viewpoint during the above-mentioned thermal component precoating aluminum alloy plate of keeping, is preferably limited to more than 50 DEG C, is more preferably more than 70 DEG C.
Vistanex in 2nd film, the same with above-mentioned 1st film, such as can use polyvinyl resin, acrylic resin etc.
And, can thermal conductivity material be contained in above-mentioned 2nd matrix resin of above-mentioned 2nd film.Thermal conductivity material mentioned here a kind ofly has more excellent thermal conductivity than above-mentioned 2nd matrix resin, can improve the material of the 2nd film overall thermal conductivity.Due to containing above-mentioned thermal conductivity material, improve the heat transfer efficiency of above-mentioned 2nd film from miscellaneous part, thus the thermal diffusivity of the thermal component using above-mentioned thermal component precoating aluminum alloy plate to form can be improved further.
And, can containing as the aluminium oxide of above-mentioned thermal conductivity material, titanium oxide, silica, carbon or nickel.These materials have excellent thermal conductivity, are suitable as very much material contained in above-mentioned 2nd film.In addition, above-mentioned aluminium oxide, titanium oxide, silica, carbon or nickel fractions preferred particulates shape or Powdered.Particle diameter or the amount of these materials are not particularly limited, and can select in the scope of coating not damaging the 2nd film.Such as, the average grain diameter of aluminium oxide, titanium oxide, silica or nickel can be 0.1 ~ 100 μm, and amount can be 0.5 ~ 200 weight portion relative to above-mentioned 2nd matrix resin of 100 weight portions.In addition, the average grain diameter of carbon can be 10 ~ 100nm, and amount can be 0.5 ~ 25 weight portion relative to above-mentioned 2nd matrix resin of 100 weight portions.
And, when the above-mentioned thermal conductivity material contained in above-mentioned 2nd film is nickel, the average grain diameter easily obtained such as can be selected to be the spherical filler of Ni of 0.3 ~ 100 μm, and thickness is 0.2 ~ 5 μm and have at least one in the flakey Ni filler of 2 ~ 50 μm of major diameters.
And, on above-mentioned thermal component material precoating aluminum alloy plate, if the softening point of above-mentioned 1st film is Tm 1dEG C, the softening point of above-mentioned 2nd film is Tm 2dEG C, then preferred Tm 1-Tm 2≤ 20.
At Tm 1-Tm 2when < 20, when heating the 2nd film makes it dissolve or softens, likely occur that the 1st film can not soften and the 2nd film is also difficult to dissolve or softening situation.Preferably, Tm 1-Tm 2≤ 40, further preferably, Tm 1-Tm 2≤ 800.
In addition, above-mentioned 1st film and above-mentioned 2nd film at least one party can be made, the inside wax containing 1 in Brazil wax, polyethylene, microwax, lanolin kind or 2 kinds.Thereby, it is possible to improve its machinability and invulnerability.
The amount of above-mentioned inner wax such as, can be 0.05 ~ 3 weight portion relative to each matrix resin of 100 weight portions.By selecting this scope, machinability and invulnerability can be improved easily, precoating aluminum alloy plate can also be suppressed to cling the generation that can not be separated caused choking phenomenon each other simultaneously.
And above-mentioned 1st film and the 2nd film, the upper strata of the coating type preferably on the surface being formed at aluminium alloy plate or the chromate of response type or non-chromate layer is formed.In this case, the adherence of aluminium alloy plate and above-mentioned precoated shet can be improved, but also machinability and durability etc. can be improved further.In addition, above-mentioned 1st film and above-mentioned 2nd film, can only be formed by 1 layer respectively, but also can at lower floor's configuration other synthetic resin coating films as bottom coating.
And, in the scope not hindering the characteristics such as thermal diffusivity, machinability, adherence, above-mentioned 1st film and above-mentioned 2nd film can add pigment and dyestuff to improve its aesthetic appearance.
Secondly, formed by the above-mentioned thermal component precoating aluminum alloy plate of bending process and there is the thermal component of above-mentioned bottom surface sections and fin portions, being not limited in embodiment described later, can be various form according to the shape of miscellaneous part be suitable for and function.In addition, as the thermal component precoating aluminum alloy plate making thermal component, preferably only having 1 piece, can certainly be the combination of polylith.
And above-mentioned fin portions, can by arriving above-mentioned thermal component precoating aluminum alloy plate double flat in surface and two pieces of overlaps and being formed to make above-mentioned 1st film.Particularly, also as shown in aftermentioned embodiment 2, by 1 piece of thermal component precoating aluminum alloy plate being carried out the repeatedly combination operation of 90 degree of bendings and 180 degree of bendings, two-layer the formed fin portions of bottom surface sections and overlapping bending can be formed alternately, form the structure of the substantially flush arrangement of each bottom surface sections simultaneously.
In addition, the fin portions formed is bent by above-mentioned 180 degree, because the 2nd two-layer film contacts with each other, heat when the composition surface that above-mentioned 2nd film of bottom surface sections is formed contacts with miscellaneous part, the 2nd film of above-mentioned fin portions is also dissolved or softening thus play adhesion function.So, above-mentioned two pieces of overlapping fin portions integrations can be made, thus can rigidity etc. be improved.
And, above-mentioned fin portions, can not overlapping above-mentioned thermal component precoating aluminum alloy plate but it is bent under the state of 1 piece corrugated form.Particularly, also as shown in aftermentioned embodiment 1, by the repeatedly combination operation using 1 piece of thermal component precoating aluminum alloy plate to carry out 90 degree of bendings, can make bottom surface sections and be provided with the fin portions that gap is made up of each relative block to be formed as zigzag, each bottom surface sections is via the structure of the substantially flush arrangement in gap simultaneously.
In addition, have on the thermal component that above-mentioned bottom surface sections and fin portions form, when arranging multiple fin portions, in order to improve aeration, the interval between each fin is preferably set to more than 5mm, is more preferably more than 8mm.When interval when between each fin is unequal, be preferably the shortlyest spaced apart more than 5mm described above, be more preferably more than 8mm.
And, having in the thermal component that above-mentioned bottom surface sections and fin portions form, in the fin portions of above-mentioned thermal component precoating aluminum alloy plate composition, the through hole along thickness of slab direction this fin portions through can be formed.In this case, the aeration of thermal component improves, thus can improve thermal diffusivity further.
In addition, it is bent under the state of 1 piece on the thermal component that corrugated forms not superposing thermal component precoating aluminum alloy plate, above-mentioned fin portions can be made up of convex body, this convex body by the face that erects erected in an approximate vertical direction from above-mentioned bottom surface sections, the face that to erect from this is along the top board face extended with the almost parallel direction of above-mentioned bottom surface sections and formed from this top board face along the decline face declined to the substantially vertical direction of above-mentioned bottom surface sections.Above-mentioned through hole, also can be formed on any one face in the face that erects of above-mentioned fin portions, top board face, decline face.
And, being bent on undulatory thermal component along multiple bending starting line, also above-mentioned bending starting line can being formed the end side in direction as being used for the engagement end portion engaging miscellaneous part.
Particularly, above-mentioned thermal component, preferably, under the state that above-mentioned bending starting line is axially aimed at, global shape is tubular, and axial one end of this tubular has above-mentioned engagement end portion.
In this case, the surface area of the above-mentioned thermal component side of tubular can be increased, thus the thermal diffusivity from side can be improved.In addition, because the inside of the thermal component at tubular defines space, so air cooling performance can be improved.
In addition, the end side in above-mentioned bending starting line formation direction has the thermal component of engagement end portion structure, and when arranging multiple fin portions, in order to improve aeration, the interval between each fin is preferably set to more than 3mm.When interval when between each fin is unequal, the shortest interval is preferably more than 3mm as above, is more preferably more than 5mm.
The global shape of above-mentioned thermal component preferably cylindrically.
In this case, make the corrugated parts formed along multiple bending starting line bending thermal component precoating aluminum alloy plate form (being bent to form) tubular, like this, just can make the thermal component of tubular simply.And cylindrical shape is highly suitable for the thermal component of the ligthing paraphernalias such as Down lamp.
And, preferably, above-mentioned thermal component, there is the multiple fin portions radially configured in the radial direction of above-mentioned cylindrical shape, adjacent above-mentioned fin portions, in the inner circumferential side of above-mentioned cylindrical shape and outer circumferential side mutual connection respectively, above-mentioned fin portions above-mentioned inner circumferential side each other and the connecting portion of above-mentioned outer circumferential side, the plane configured along the circumferencial direction of above-mentioned cylindrical shape or curved surface are formed.
In this case, due to the existence of above-mentioned fin portions, the surface area of above-mentioned 1st film can be increased, thus excellent thermal diffusivity can be obtained.And, the connecting portion being configured at radial fin portions and being configured at circumferencial direction defines the face of fine heat radiation property.So, the heat radiation to multiple directions can be promoted.
In addition, preferably, above-mentioned connecting portion forms through hole.
In this case, the aeration of cylindric above-mentioned thermal component can be improved.
The connecting portion of above-mentioned inner circumferential side forms the interior face of cylindric thermal component, and the connecting portion of outer circumferential side forms the external of cylindric thermal component.By face and external forming through hole as above in these, the aeration of the side of the thermal component from cylindrical shape can be improved, thus air cooling performance can be improved further.
Particularly, through hole refers to the hole of the precoating aluminum alloy plate from the through formation thermal component of thickness direction.Through hole can arrange one or more.Preferably, at the connecting portion of all outer circumferential sides and/or arrange through hole at the connecting portion of all inner circumferential sides.
In addition, from the viewpoint of the radiating surface guaranteed connecting portion, even if when through hole is formed on connecting portion, preferably, the part be made up of plane or curved precoating aluminum alloy plate remain on connecting portion at least partially.
Although by making above-mentioned connecting portion for plane or curved as above, through hole can be formed on connecting portion, also can form connecting portion on the line parallel with the direction of principal axis of tubular.That is, be bent into jagged precoating aluminum alloy plate, also can be formed in tubular thermal component under the state that multiple bending starting line axially aims at.In this case, connecting portion is not plane or curved surface, but becomes the wire parallel with direction of principal axis, and forms the outstanding bight of an acute angle on connecting portion.
When using the above-mentioned thermal component precoating aluminum alloy plate be formed at respectively in it on outside by above-mentioned 1st film and above-mentioned 2nd film to form the thermal component of above-mentioned tubular, the 1st film can be configured in any side of the outer circumferential side of tubular and inner circumferential side.About the 2nd film too.
Preferably, above-mentioned 1st film of above-mentioned thermal component precoating aluminum alloy plate is formed at the outer circumferential side of above-mentioned cylindrical shape, and above-mentioned 2nd film is formed at the inner circumferential side of above-mentioned cylindrical shape.
In this case, the structure a kind of outer circumferential side easily contacting extraneous air configuring the 1st film of fine heat radiation property is formed, so thermal diffusivity can be improved further.
And on the above-mentioned thermal component that integrally bending becomes cylindric, axial one end of above-mentioned cylindrical shape becomes the engagement end portion for engaging miscellaneous part.When engaging with miscellaneous part, being configured to axial one end of above-mentioned thermal component on miscellaneous part and heating, above-mentioned 2nd film dissolves or softening at least partially, dissolves or the 2nd softening film to expand on miscellaneous part and to cool hardening.At this moment, if be configured to by the 2nd film on cylindric inner circumferential side as above, then can form in the inner side being difficult to the cylindrical shape observed from outside the adhesion part produced by the 2nd film.Therefore, it is possible to improve the aesthetic property after connecting.
Embodiment
(embodiment 1)
As an example of the thermal component using thermal component to manufacture with precoating aluminum alloy plate, represent to be applicable to one of ligthing paraphernalia i.e. example of Down lamp.The thermal component 5 of the present embodiment, as shown in Figure 2, has and has for engaging miscellaneous part (matrix part) 81(Fig. 4) composition surface 51 bottom surface sections 50 and from bottom surface sections 50 erect arrange fin portions 52.
Bottom surface sections 50 and fin portions 52, formed by the thermal component precoating aluminum alloy plate shown in bending process Fig. 1.As shown in same accompanying drawing, thermal component precoating aluminum alloy plate 1, possesses aluminium alloy plate 10, the 1st film 11 be formed on one of them face, the 2nd film 12 be formed on another face.1st film 11 is compared aluminium alloy plate surface and is had more excellent thermal diffusivity.The adhesion function that 2nd film is dissolved by heating or softened and have as sticker.Further, the composition surface 51(Fig. 2 in bottom surface sections 50) be made up of the face with the 2nd film 12.
Thermal component precoating aluminum alloy plate 1 manufactures according to following operation.First, as the aluminium alloy plate 10 of matrix material, use the aluminium alloy plate of materials A 1050-O section bar, thickness 0.5mm.By the two sides of this aluminium alloy 10 with after alkaline defatting agent degreasing, be immersed in the bath of chromium phosphate hydrochlorate and carry out chemical conversion treatment.What obtain changes into epithelium (chromium phosphate hydrochlorate epithelium) 105, and the Cr amount in its epithelium is at 20 ± 5mg/m 2in scope.
Secondly, a face of aluminium alloy plate 10 forms the 1st film 11.Coating uses following material, namely, melting point more than 200 DEG C (softening point: 240 DEG C), be that the mylar of 16000 series is as the 1st matrix resin using number-average molecular weight, in solid constituent compares, relative to the 1st matrix resin of 100 weight portions, containing titanium oxide 100 weight portion that the average grain diameter as thermal diffusivity material is 0.3 μm, containing Tissuemat E 1 weight portion as inner wax.Carry out application with rod coater, the thickness of the 1st film 11 is 50 μm.In addition, the baking condition of the 1st film 11 is set to keep reaching 230 DEG C to make surface temperature in 60 seconds in the baking oven of 240 DEG C.
Next, another face of aluminium alloy plate 10 forms the 2nd film 12.Coating only uses following material, that is, be in bisphenol A type epoxy resin 40% aqueous solution of 10000 in number-average molecular weight, the blocked isocyanate by manufactured by the chemical research of (strain) mountain, village: color-fixing agent #212 mixes according to the ratio of 7:3 the material formed.Carry out application with rod coater, the thickness of the 2nd film 12 is 20 μm.In addition, the baking condition of the 2nd film 12 is set to keep reaching 230 DEG C to make surface temperature in 60 seconds in the baking oven of 240 DEG C.The melting point of the 2nd film 12 obtained is 170 DEG C, softening point is 85 DEG C.In addition, above-mentioned 1st film 11 and the 2nd film 12, when producing in a large number, can use continuous paint line to carry out application.
Use the thermal component precoating aluminum alloy plate 1 obtained like this, thermal component 5 can be made according to following operation.First, thermal component precoating aluminum alloy plate 1 is formed a blank (diagram slightly), this blank is equivalent to the thermal component 5 of the net shape shown in Fig. 2 and Fig. 3 to be launched into flat shape.
Secondly, as shown in FIG. 2 and 3, the operation repeating 90 degree of above-mentioned blanks of bending makes it form corrugated, arranges the bottom surface sections 50 of generally horizontal shape arrangement and erects the fin portions 52 arranged from bottom surface sections 50.In addition, in bottom surface sections 50, erectting the face arranging the opposition side of the side of fin portions 52 is composition surface 51, and it is the face with the 2nd film 12.
And thermal component 5, as shown in Figure 3, if observe its outline-shaped up to become circular.In addition, as shown in Figure 2, each fin portions 52 is only made up of 1 piece of precoating aluminum alloy plate respectively, and abutting fins portion 52 interval D 1 is each other set as 8mm.
The thermal component 5 obtained, by above-mentioned bottom surface sections 50 being contacted with miscellaneous part and heating, integrally can engage use with miscellaneous part.As the concrete structure of Down lamp 8 being applicable to one of ligthing paraphernalia, as shown in Figure 4, can for using thermal component 5 and the structure that engages as the substrate 81 of above-mentioned miscellaneous part.Also can using the composite entity of matrix part 81 and thermal component 5 as thermal component.
Matrix part 81 is made up of aluminum alloy disk (diameter: 85mm, thickness: 3mm).The joint of matrix part 81 and thermal component 5 carries out according to following operation, namely, on matrix part 81, place the composition surface 51 of bottom surface sections 50 of thermal component 5, cool again after applying, under the state of bearing a heavy burden to a certain degree, the entirety of matrix part 81 and thermal component 5 is heated to 170 DEG C.By this heating, the 2nd film 12 forming the thermal component precoating aluminum alloy plate 1 of thermal component 5 is dissolved or is softened, and afterwards, by cooling, the 2nd film 12 is hardening and then play adhesion function.Thus, as shown in Figure 4, Figure 5, matrix part 81 and thermal component 5 are integrated.In addition, the 2nd film 21 dissolve or softening time there occurs a little flowing, define to extend to and cover the part 127 on matrix part 81 surface.
In addition, as shown in same accompanying drawing, prepare the Down lamp body 80 that a reflector 84 reflected to desired direction by the substrate 83 of the light source 82 being equipped with LED element to form and the light for being launched by light source 82 is assembled separately.And, the substrate 83 matrix part 81 with thermal component 5 integration being configured to Down lamp body 80 engages via dielectric film 85.Like this, the Down lamp 8 possessing thermal component 5 just completes.
When lighting Down lamp 8, light source 82 generates heat.This heat is passed on thermal component 5 via substrate 83, dielectric film 85 and matrix part 81.On thermal component 5, be passed to the heat of aluminium alloy plate 10, effectively discharged under the effect of the 1st film 11 with superior heat radiation.Therefore, the excessive temperature of light source 82 on Down lamp 8 can be suppressed to rise, and then service life can be avoided short and maintain luminescent properties.
(embodiment 2)
The thermal component 6 of the present embodiment goes for the ligthing paraphernalia of the Down lamp type the same with embodiment 1.
The thermal component 6 of the present embodiment, as shown in Figure 6, has and has for engaging miscellaneous part (matrix part) 81(Fig. 8) composition surface 61 bottom surface sections 60 and from bottom surface sections 60 erect arrange fin portions 62.
Bottom surface sections 60 and fin portions 62, formed by the thermal component precoating aluminum alloy plate 1 of bending process and embodiment 1 same configuration.The making of thermal component 6 is carried out according to following operation, and first, thermal component precoating aluminum alloy plate 1 is formed a blank (diagram slightly), this blank is equivalent to the thermal component 6 of the net shape shown in Fig. 6 and Fig. 7 to be launched into flat shape.
Secondly, as shown in Fig. 6 and Fig. 7, suitably repeat the operation of 90 degree of bendings and 180 degree of above-mentioned blanks of bending, the bottom surface sections 60 of generally horizontal shape arrangement is set and erects the fin portions 62 arranged from bottom surface sections 60.In addition, in bottom surface sections 60, erectting the face being provided with the opposition side of the side of fin portions 62 is composition surface 61, and it is the face with the 2nd film 12.
And thermal component 6, as shown in Figure 7, if observe its outline-shaped up to become circular.In addition, as shown in Figure 6, each fin portions 62 respectively by by described thermal component precoating aluminum alloy plate double flat to make the 1st film 11 arrive surface and two pieces of overlaps and being formed.In addition, adjacent fin portions 62 interval D 2 is each other set as 8mm.
The thermal component 6 obtained, by bottom surface sections 60 being contacted with miscellaneous part and heating, integrally can engage use with miscellaneous part.As being applicable to the concrete structure with the Down lamp of embodiment 1 same configuration, as shown in Figure 8, thermal component 6 and engaging as the substrate 81 of above-mentioned miscellaneous part can be used.Also can using the composite entity of matrix part 81 and thermal component 5 as thermal component.
The joint of matrix part 81 and thermal component 6 carries out according to following operation, namely, on matrix part 81, place the composition surface 61 of the bottom surface sections 60 of thermal component 6, cool again after applying, under the state of bearing a heavy burden to a certain degree, the entirety that matrix part 81 and thermal component 6 are formed is heated to 170 DEG C.By this heating, the 2nd film 12 forming the thermal component precoating aluminum alloy plate 1 of thermal component 6 is dissolved or is softened, and afterwards by cooling, the 2nd film 12 hardens and then plays adhesion function.Thus, as shown in Figure 9, matrix part 81 and thermal component 6 are integrated, and meanwhile, the overlapping part of 2 pieces of each fin portions 62 is also integrally engaged.
And as shown in Figure 8, relative to the Down lamp body 80 that separately prepare the same as embodiment 1, engaged with it via dielectric film 85 by the matrix part 81 with thermal component 6 integration, Down lamp 802 just completes.
Even if in the present embodiment, from the heat that the light source 82 when lighting Down lamp 802 sends, be passed to thermal component 6 via substrate 83, dielectric film 85 and matrix part 81.On thermal component 6, be passed to the heat of aluminium alloy plate 10, effectively discharged under the effect of the 1st film 11 with superior heat radiation.Therefore, the excessive temperature of light source 82 on Down lamp 802 can be suppressed to rise, and then the short maintenance realizing luminescent properties in service life can be avoided.
And the thermal component 6 of the present embodiment, as shown in Figure 9, it is overlapping that it is configured to 2 pieces of fin portions 62, so the rigidity of fin portions 62 is higher compared with the situation of embodiment 1.In addition, the area on the composition surface 61 of bottom 60 is also larger than the situation of embodiment 1, so the stability engaged is also higher.
In addition, in embodiment 1,2, the profile of thermal component 5,6 is circular, but its shape can change to such as quadrangle, octagonal etc. in the scope of matrix part 81 area.
(comparative example 1)
As shown in Figure 10, in order to the validity of the thermal component of qualitative assessment above-described embodiment 1,2, a kind of Down lamp 809 has been prepared as comparative example, this Down lamp 809, by the part of above-mentioned matrix part 81 and thermal component 5 or 6 integration, changes to the casting thermal component 95 be made up of the aluminium alloy of materials A DC12.
(assessment)
In evaluation test, prepared Down lamp 8(embodiment 1), Down lamp 802(embodiment 2), Down lamp 809(comparative example 1) as test specimen 1,2,3, and, they being placed on respectively temperature is in the thermostatic chamber of 25 DEG C, carries out the test of measuring each several part temperature according to the time point lighted 1 hour.And, in order to stably temperature survey can be carried out, test specimen 1,2,3 to be placed on respectively in the angle cylinder (diagram slightly) that Corvic makes and to light.Thermometric position, as shown in Fig. 4, Fig. 8, Figure 10, is A point (substrate outer circumference end), B point (matrix part outer circumference end), C point (thermal component bottom), D point (thermal component top), E point (cylinder bottom, angle), F point (cylinder top, angle) this 6 place.
In addition, the weight of thermal component on each test specimen is also measured.In embodiment 1,2, the weight of thermal component 5,6 is the weight not comprising matrix part 81.
The weight of temperature measurement result and thermal component is as shown in table 1.Further, the measurement result of above-mentioned A point as shown in figure 11.In same accompanying drawing, transverse axis represents the kind of measuring object, and the left longitudinal axis represents the temperature of A point, and the right longitudinal axis represents the weight of thermal component, and the temperature of A point is represented by plot point (zero) by the weight of histogram graph representation, thermal component.
(table 1)
From table 1 and Figure 11, compared with traditional casting thermal component 95, the thermal component 5 of embodiment 1 and thermal component 6 weight of embodiment 2 are lighter, and radiating effect is better.
(embodiment 3 ~ 11)
In above-described embodiment 1 and 2, list and be a kind ofly formed with the example with the 1st film of special component and the thermal component precoating aluminum alloy plate of the 2nd film, and in the present embodiment, then relate to and be a kind ofly formed with the example being different from the 1st film of embodiment 1 and embodiment 2 composition and the thermal component precoating aluminum alloy plate of the 2nd film.
The 1st film formed in the present embodiment and the composition of the 2nd film represent respectively in aftermentioned table 2 and table 3.Embodiment 3 ~ 11, except the 1st film and the 2nd this difference of film, it is the thermal component precoating aluminum alloy plate using structure identical with embodiment 1.And the concrete formation method of the 1st film and the 2nd film is also identical with embodiment 1.
In addition, in table 2 and table 3, use average grain diameter is the titanium oxide of 0.3 μm, uses the carbon black that average grain diameter is 24nm, and use average grain diameter is the alumina filled thing of 4 μm.
And, in table 3, " color-fixing agent #212 " that " PES375S40 " that " TAKELACW615 " that the acrylic resin of the 2nd matrix resin uses East Asia synthesis (strain) (strain) to make " JURYMERAT613 ", polyurethane resin use Mitsui Chemicals (strain) to make, mylar use East Asia synthesis (strain) to make, blocked isocyanate use (strain) mountain, village chemical research made.
And, show emissivity (%), the softening point Tm of the 1st film in table 2 1(DEG C).
The emissivity of the 1st film can be measured by ultrared integrated emissivity, and in addition, in the present embodiment, the emissivity of aluminium alloy plate (materials A 1050-O section bar, thickness 0.5mm) is 15%.
And, show the softening point Tm of the 2nd film in table 3 2(DEG C), peel strength (kg/0.5c).
The peel strength of the 2nd film can be measured according to JIS-K6854-3 " sticker-stripping adhesion strength test method: T-shaped stripping ".
Particularly, first the aluminium alloy plate being formed with the 2nd film is cut according to wide 10mm × long 100mm.Further, will the application face of the 2nd film of the aluminium alloy plate of the 2nd film be formed and overlap each other to make the length on its composition surface for 50mm without the aluminium alloy plate of application, and fix with metal clip.Secondly, heat 20 minutes at 150 DEG C of temperature.Measure and carry out in the following manner, that is, in cupping machine, carry out tension test with the draw speed of 50mm/min, measure peel strength at this moment.Test temperature is set as 25 DEG C.
And, the softening point Tm in table 2 and table 3 1and Tm 2measurement, be that vicat softening temperature (VST) test method of the plastics-thermoplastic specified according to JIS-K7206 (1999) is carried out.
Secondly, form the 1st film shown in table 2 and table 3 and the 2nd film respectively by the combination shown in table 4, and then make 9 kinds of thermal components with precoating aluminum alloy plate (embodiment 3 ~ 11).1st film is identical with embodiment 1 with the concrete formation method of the 2nd film.
Next step, respectively with these thermal component precoating aluminum alloy plates, make corrugated thermal component according to the operation identical with embodiment 1.And, Down lamp is formed according to the operation identical with embodiment 1 with these thermal components, these Down lamps being placed on respectively temperature is in the thermostatic chamber of 25 DEG C, according to the time point lighting 1 hour temperature of measuring substrate outer circumference end (A point) the same as above-mentioned evaluation test.Its result is as shown in table 4.In addition, in table 4, the result as the above-mentioned comparative example 1 compared is described in the lump.And, in table 4, also show the difference (Tm of the 1st film and the 2nd film softening point 1-Tm 2).
(table 4)
Known according to table 4, the thermal component of the use precoating aluminum alloy plate of embodiment 3 ~ 11, compares with traditional casting thermal component (comparative example 1) and can produce excellent radiating effect.And as shown in table 3, the precoating aluminum alloy plate of embodiment 3 ~ 11 has the 2nd excellent film of peel strength.Therefore, when it can be used as thermal component to use, because its excellent adherence can be adhered on the miscellaneous parts such as the matrix part of Down lamp well.
In addition, in the present embodiment, use the thermal component material precoating aluminum alloy plate of embodiment 3 ~ 11 to make the corrugated thermal component identical with embodiment 1, also can make the thermal component of 2 pieces of superimposed structures as embodiment 2.
(embodiment 12)
The present embodiment is the example that a kind of shape is different from the thermal component of embodiment 1 and 2.The thermal component 7 of the present embodiment, goes for and the ligthing paraphernalia of the same Down lamp type of embodiment 1 and 2 (with reference to Figure 12).
The thermal component 7 of the present embodiment, as shown in Figure 12 ~ Figure 14, forms corrugated by bending thermal component precoating aluminum alloy plate 1 along multiple bending starting line 71.Thermal component 7, the end side 715 in the formation direction of bending starting line 71 has the engagement end portion 72 for engaging miscellaneous part 81.Thermal component 7, under bending starting line 71 axially the X state of aiming at, global shape cylindrically, and has engagement end portion 72 on one end 715 of the direction of principal axis X of this cylindrical shape.Thermal component 7, can engage by this engagement end portion 72 and miscellaneous part 81.
Thermal component 7, has the multiple fin portions 73 radially configured in the radial direction of cylindrical shape.On thermal component 7, adjacent fin portions 73, in cylindric inner circumferential side 701 and outer circumferential side 702 mutual connection respectively.In the plane being configured at above-mentioned cylindric circumferencial direction, form fin portions 73 inner circumferential side 701 each other and the connecting portion 74,75 of outer circumferential side 702.Below, the connecting portion of inner circumferential side 701 is called interior facial 74, the connecting portion of outer circumferential side 702 is called external 75.
As shown in figure 13, in the present embodiment, interval each other, abutting fins portion 73 is different diametrically, and from inner circumferential side 701,702 intervals become large to outer peripheral side.Abutting fins portion 73 each other between to be interposed between inner circumferential side 701 minimum.In the present embodiment, no matter there is the position as face 74 in the connecting portion of inner circumferential side 701, still there is not this position, interval D 3, the D4 of inner circumferential side 701 are set as identical, are all 5mm, namely, the interval of fin portions 73 inner circumferential side 701 is each other all impartial, is all 5mm.
And no matter whether there is the external 75 as the connecting portion of outer circumferential side 702, the interval of abutting fins portion 73 outer circumferential side 702 is each other all impartial.8mm is set it in the present embodiment.
In addition, in the present embodiment, the interval of inner circumferential side 701 each other, abutting fins portion 73 and the interval of outer circumferential side 702 are set as equalization all respectively, also can change interval.From the angle of thermal diffusivity, abutting fins portion 73 preferred more than the 3mm in the shortest interval each other.
In addition, as shown in Figure 12 and Figure 14, connecting portion, namely smooth in face 74 and external 75 form the precoating aluminum alloy plate through hole 740,750 be used for from the through formation thermal component 7 of thickness direction respectively.In the present embodiment, face 74 and external 75 are all provided with through hole 740,750 in all.In addition, fin portions 73 also can form through hole.On interior facial 74, be respectively arranged with two along straight through hole 740a, the 740b be arranged of cylindric direction of principal axis X.Similarly, outside on face 75, two axially straight through hole 750a, 750b be arranged of X are also provided with.Between through hole 740a, 740b, 750a, 750b, remain the part be made up of precoating aluminum alloy plate 1.
Thermal component 7, by the bending process of 1 piece of precoating aluminum alloy plate 1 being become corrugated, under the bending starting line state of axially aiming at, global shape bends to tubular and is formed.Use the thermal component shown in embodiment 1 with precoating aluminum alloy plate 1 as precoating aluminum alloy plate 1.Therefore, thermal component 7, as shown in figure 15, possess aluminium alloy plate 10, be formed at wherein one side on the 1st film 11 and the 2nd film 12 that is formed on another side.In addition, not accommodating doubtful, use the thermal component precoating aluminum alloy plate of above-described embodiment 3 ~ 11 also can form the thermal component with the present embodiment same configuration.
When forming the thermal component 7 of the present embodiment, first, the thermal component precoating aluminum alloy plate 1(blank of preparation and embodiment 1 same configuration), this precoating aluminum alloy plate 1 not overlapping, but it is bent into corrugated along multiple bending starting line 71 under the state of 1 monoblock.Secondly, be bent on undulatory precoating aluminum alloy plate 1, be pre-formed through hole 740,750 at the position of the connecting portion 74,75 becoming end-state (with reference to Figure 12 ~ 14).Next step, bend to cylindrical shape (diameter 85mm, high 5cm) by global shape under bending starting line 71 state that axially X aims at.At this moment, sticker etc. can be used to be engaged with each other the end of circumferencial direction.In addition, under global shape bends to cylindric state, make it softening or after dissolving by the 2nd film of heating thermal component precoating aluminum alloy plate 1, make it harden by cooling and global shape can be fixed as cylindrical shape.
In the present embodiment, as shown in figure 15, the inner circumferential side 701 that the 1st film 11 of thermal component precoating aluminum alloy plate 1 is molded over cylindric outer circumferential side 702, the 2nd film 12 is molded over cylindrical shape.And, in Figure 12 ~ Figure 14 and Figure 16 described later, show the 1st film and the 2nd film for the ease of drawing omission, and in fact, as shown in figure 15, be formed with the 1st film 11 and the 2nd film respectively on the surface of aluminium alloy plate 10.
As shown in Figure 12 ~ Figure 14, cylindric thermal component 7, can using one end of direction of principal axis X as the engagement end portion 72 relative to miscellaneous part 81.By heating the engagement end portion of thermal component 7 under the state contacted with miscellaneous part 81, integrally use can be engage with other parts 81.As being applicable to one of ligthing paraphernalia i.e. concrete structure of Down lamp, as shown in figure 16, can be thermal component 7 and the structure engaged as the substrate 81 of above-mentioned miscellaneous part.Also can will be combined with matrix part 81 and thermal component 7 and the entirety that formed as thermal component.In addition, in figure 16, be configured at the thermal component 7 on Down lamp body 80, represent A-A line sectional view in Figure 13.
Matrix part 81 is made up of aluminum alloy disk (diameter: 85mm, thickness: 3mm), the joint of matrix part 81 and thermal component 7 carries out according to following operation, namely, on matrix part 81, the thermal component 7 of the cylindrical shape of placement diameter 85mm, high 5cm contacts with one end (engagement end portion 72) of direction of principal axis X to make it, applying under the state of bearing a heavy burden to a certain degree, the operation of carrying out heat, cool the same as embodiment 1.As shown in figure 17, by this heating, the 2nd film 12 forming the thermal component precoating aluminum alloy plate 1 of thermal component 7 is dissolved or is softened, because himself weight is expanded on miscellaneous part 81.Afterwards, harden by cooling the 2nd film 12 and then play adhesion function.Thus, as shown in FIG. 16 and 17, matrix part 81 and thermal component 7 are integrated.In addition, after integration, the constituent defining the 2nd film extends to the part 127(reference Figure 17 covering matrix part 81 surface).
In addition, as shown in figure 16, relative to the Down lamp body 80 prepared equally separately with embodiment 1, engaged via dielectric film 85 by the matrix part 81 with thermal component 7 integration, thus, the Down lamp 803 possessing thermal component 7 just completes.
When lighting Down lamp 803, light source 82 generates heat.This heat is passed to thermal component 7 via substrate 83, dielectric film 85 and matrix part 81.On thermal component 7, be passed to the heat of aluminium alloy plate 10, effectively discharged under the effect of the 1st film 11 with superior heat radiation.Therefore, the excessive temperature of light source 82 on Down lamp 803 can be suppressed to rise, and then service life can be avoided short and realize the maintenance of luminescent properties.
In addition, the thermal component 7 of the present embodiment, the end side in bending starting line formation direction has the engagement end portion 72 for engaging miscellaneous part.Therefore, the surface area of cylindric side increases, thus can improve the thermal diffusivity of side.
And on thermal component 7, fin portions 73 inner circumferential side 701 each other and the connecting portion 74,75 of above-mentioned outer circumferential side 702, formed in the plane or curved surface of the configuration of cylindric circumferencial direction.And, connecting portion 74,75 is formed through hole 740,750.The aeration of thermal component 7 side from cylindrical shape can be improved.Therefore, excellent heat sinking function can be played.In the present embodiment, other action effects of thermal component 7 are identical with embodiment 1.

Claims (17)

1. a thermal component precoating aluminum alloy plate, its be possess aluminium alloy plate, be formed at wherein one side on the 1st film and be formed at the precoating aluminum alloy plate of the 2nd film on another side, it is characterized in that,
Described 1st film, has the thermal diffusivity more excellent than the surface of described aluminium alloy plate,
Described 2nd film, is had and is dissolved or the softening adhesion function as sticker by heating,
When the softening point of described 1st film is Tm 1dEG C, the softening point of described 2nd film is Tm 2dEG C time, then Tm 1-Tm 2≤ 20.
2. thermal component precoating aluminum alloy plate according to claim 1, is characterized in that,
Described 1st film contains thermal diffusivity material in the 1st matrix resin, wherein, the softening point of the 1st matrix resin, more than 150 DEG C, is made up of at least a kind in the mylar being selected from fluororesin, the polyurethane resin of number-average molecular weight 10000 ~ 40000, the vistanex of number-average molecular weight 10000 ~ 40000, the epoxy resin of number-average molecular weight 1000 ~ 15000, number-average molecular weight 10000 ~ 40000.
3. thermal component precoating aluminum alloy plate according to claim 2, is characterized in that,
It is one kind or two or more that described 1st film contains as in the titanium oxide of described thermal diffusivity material, carbon, silica, aluminium oxide, zirconia.
4. thermal component precoating aluminum alloy plate according to claim 2, is characterized in that,
Described 1st film, relative to described 1st matrix resin of 100 weight portions, containing being selected from 0.5 ~ 200 weight portion and average grain diameter is titanium oxide, 0.5 ~ 25 weight portion and in the carbon of fine powder, in the zirconia of the silica of 0.5 ~ 200 weight portion, the aluminium oxide of 0.5 ~ 200 weight portion and 0.5 ~ 200 weight portion at least a kind of 0.1 ~ 100 μm.
5. thermal component precoating aluminum alloy plate according to claim 1, is characterized in that,
Described 2nd film contains the 2nd matrix resin, and wherein, the softening point of the 2nd matrix resin is less than 150 DEG C, forms by be selected from acrylic resin, polyurethane resin, ionomer resin, vistanex, epoxy resin, mylar one kind or two or more.
6. thermal component precoating aluminum alloy plate according to claim 5, is characterized in that,
Described 2nd film contains thermal conductivity material in described 2nd matrix resin.
7. thermal component precoating aluminum alloy plate according to claim 6, is characterized in that,
Containing as the aluminium oxide of described thermal conductivity material, titanium oxide, silica, carbon or nickel.
8. thermal component precoating aluminum alloy plate according to claim 1, is characterized in that,
At least one party of described 1st film and described 2nd film contains the inside wax of in Brazil wax, polyethylene, microwax, lanolin a kind or 2 kinds.
9. a thermal component, is characterized in that, it possesses the bottom surface sections on the composition surface had for engaging miscellaneous part and erects the fin portions of setting from this bottom surface sections,
Described bottom surface sections and described fin portions, consisted of the thermal component precoating aluminum alloy plate according to any one of bending process claim 1 ~ 8;
The described composition surface of described bottom surface sections, is made up of the face with described 2nd film.
10. thermal component according to claim 9, is characterized in that,
Described fin portions, by arriving described thermal component precoating aluminum alloy plate double flat in surface and two pieces of overlaps and being formed to make described 1st film.
11. thermal components according to claim 9, is characterized in that,
Described fin portions, not overlapping described thermal component precoating aluminum alloy plate, is bent into corrugated by it and forms under the state of 1 piece.
12. 1 kinds of thermal components, is characterized in that, it is the thermal component thermal component precoating aluminum alloy plate according to any one of claim 1 ~ 8 being bent into corrugated formation along multiple bending starting line,
Formed at described bending starting line in the end side in direction, there is the engagement end portion for engaging miscellaneous part.
13. thermal components according to claim 12, is characterized in that,
Described thermal component, under the state that described bending starting line is axially aimed at, global shape is tubular, has described engagement end portion in axial one end of this tubular.
14. thermal components according to claim 13, is characterized in that,
The global shape of described thermal component cylindrically.
15. thermal components according to claim 14, is characterized in that,
There are multiple fin portions that the radial direction along described cylindrical shape radially configures, adjacent described fin portions is mutual respectively on the inner circumferential side and outer circumferential side of described cylindrical shape to be connected, described fin portions described inner circumferential side each other and the connecting portion of described outer circumferential side, the plane configured along the circumferencial direction of described cylindrical shape or curved surface are formed.
16. thermal components according to claim 15, is characterized in that,
Described connecting portion forms through hole.
17. thermal components according to claim 13, is characterized in that,
Described 1st film of described thermal component precoating aluminum alloy plate is the outer circumferential side of described cylindrical shape, and described 2nd film is the inner circumferential side of described cylindrical shape.
CN201280028383.2A 2011-06-08 2012-06-07 Thermal component precoating aluminum alloy plate and use its thermal component Expired - Fee Related CN103717393B (en)

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