CN104566309A - Manufacturing method for heat sink and lamp with heat sink - Google Patents
Manufacturing method for heat sink and lamp with heat sink Download PDFInfo
- Publication number
- CN104566309A CN104566309A CN201410843885.1A CN201410843885A CN104566309A CN 104566309 A CN104566309 A CN 104566309A CN 201410843885 A CN201410843885 A CN 201410843885A CN 104566309 A CN104566309 A CN 104566309A
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- China
- Prior art keywords
- radiator
- led lamp
- supporting part
- power supply
- holding part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
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- 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
- F21Y2101/00—Point-like light sources
Abstract
The invention provides a manufacturing method for a heat sink and an LED (light emitting diode) lamp with the heat sink. The method comprises the following steps of preparing ceramic slurry; forming a ceramic blank; sintering the ceramic slurry in a sintering furnace to obtain an inner heat sink made of a ceramic material; placing the sintered inner heat sink in a mold; performing slip casting on the sintered inner heat sink by using a high polymer material to obtain an outer heat sink made of the high polymer material; and wrapping a part of the inner heat sink by using the outer heat sink after slip casting of the high polymer material so that the heat sink with an integrated structure is formed. By the manufacturing method for the heat sink, the technology is simple, and the machining period is short. The LED lamp with the heat sink manufactured by the method has the advantages of high heat dissipation effect and light weight, and is suitable to be used widely.
Description
Technical field
The present invention relates to a kind of radiator, particularly relate to a kind of preparation method of radiator and there is the LED lamp of this radiator.
Background technology
Pottery, plastics or aluminium is mostly adopted to make for the radiator in LED lamp in prior art, simple ceramic heat sink, although heat dispersion is relatively good, complex manufacturing technology, the process-cycle is long, and Heavy Weight, there is significant limitation; Although common plastics radiator manufacture craft is simple, its heat dispersion is poor; The radiator of aluminium alloy extruded or die cast, because it is than great, there is the shortcomings such as the high and efficiency of processing cost is low, and Aluminium Radiator is good electric conductor, the potential safety hazard that during application, existence is very large.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of preparation method of radiator and comprise the LED lamp of the radiator prepared by this preparation method.
According to the preparation method of a kind of radiator provided by the invention, comprise step:
A () prepares ceramic size;
B () utilizes ceramic size, forming ceramic base substrate;
C ceramic body is put into sintering furnace and is carried out sintering the inner radiator forming ceramic material by ();
D the inner radiator that sintering is formed is put into a mould by (), then macromolecular material injection forming is formed on the inner radiator of sintering formation the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.
Preferably, in described step (b), ceramic body adopts dry pressure formed.
Preferably, in described step (b) ceramic body adopt hot die-casting method or injection shaping.
Preferably, described ceramic material is one or more in aluminium oxide, zirconia, beryllium oxide, boron nitride, carborundum.
Preferably, the thermal conductivity factor of described macromolecular material is: 0.8 ~ 3W/ (m.K).
Preferably, the density range of described macromolecular material is: 0.8 ~ 2.3g/cm
3, be preferably 1.65g/cm
3.
Preferably, in described step (b), sintering temperature is: 1500 ~ 1590 DEG C, and temperature retention time is 4 ~ 6 hours.
Preferably, described inner radiator comprises a light source loading face and/or a power supply components and parts loading end.
Preferably, between described step (c) and step (d), also comprise step (c '), namely fit power supply components and parts on the power supply components and parts loading end of inner radiator.
The present invention also provides a kind of LED lamp comprising radiator prepared by method described above, this light fixture comprises connected lamp holder, lamp body, also comprise the cell-shell or lens that connect lamp body, described lamp body comprises a radiator, this radiator comprises the inner radiator of ceramic material and the outer radiator of macromolecular material, and the light source loading face of described inner radiator is provided with one or more LED light source.
Preferably, described inner radiator: be made up of the supporting part be connected and a holding part, or comprise a connected supporting part and a holding part.
Wherein, an end face away from described holding part on described supporting part forms light source loading face.
Preferably, the external diameter of described supporting part is greater than the external diameter of described holding part.
Preferably, described holding part is hollow circular cylinder, and hollow space is that a power supply settles cavity, for settling power supply.
Preferably, described supporting part be cylinder, star-like cylinder, Rotary-table or be circumferentially distributed with the cylinder of multiple circular arc projection.
Preferably, described supporting part is provided with the demoulding hole axially run through and power line cable hole.
Preferably, the thickness of described supporting part is 2 ~ 12mm, and the wall thickness of described holding part is 1 ~ 8mm.
Preferably, described inner radiator is the cylinder of a part of hollow or the Rotary-table of a part of hollow, and hollow space is that a power supply settles cavity, for settling power supply, is provided with the demoulding hole and power line cable hole axially run through on described cylinder or on Rotary-table.
Preferably, described outer radiator is pyramidal structure, and tapering is 45 ° ~ 55 °.
Preferably, described outer radiator is provided with radiating fin, the upper surface of described outer radiator flushes higher than the light source loading face 4 ~ 6mm of inner radiator or both.
The present invention also provides another kind to comprise the LED lamp of radiator prepared by method described above, comprise connected lamp holder, lamp body, the cell-shell also comprising connection lamp body or lens, described lamp body comprises a radiator, it is characterized in that, this radiator comprises the inner radiator of ceramic material and the outer radiator of macromolecular material, the light source loading face of described inner radiator is provided with one or more LED light source, the power supply components and parts loading end of described inner radiator is provided with one or more power supply components and parts.
Preferably, described inner radiator: be made up of the supporting part be connected and a holding part, or comprise a connected supporting part and a holding part.
Wherein, an end face away from described holding part on described supporting part forms light source loading face.
Preferably, the external diameter of described supporting part is greater than the external diameter of described holding part.
Preferably, described holding part is hollow circular cylinder, and described power supply components and parts loading end is the inner surface of the hollow space that holding part and described supporting part are formed.
Preferably, in described holding part, vacancy is filled with macromolecular material, and described power supply components and parts are covered by between inner radiator and outer radiator.
Preferably, described supporting part be cylinder, star-like cylinder, Rotary-table or be circumferentially distributed with the cylinder of multiple circular arc projection.
Preferably, described supporting part is provided with the demoulding hole axially run through and power line cable hole.
Preferably, described outer radiator is pyramidal structure, and tapering is 45 ° ~ 55 °.
Preferably, described outer radiator is provided with radiating fin, the upper surface of described outer radiator is higher than the light source loading face 4 ~ 6mm of inner radiator.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention changes and originally had baroque shortcoming with the radiator of ceramic material completely, the structure of radiator is improved to the inner radiator of the simple ceramic material of structure and the outer radiator of macromolecular material, and then can preferably utilize the simple dry pressing of technique to prepare ceramic body part, adopt dry-pressing formed, technique becomes simple, and the process-cycle shortens;
2, in the present invention after the inner radiator of ceramic material is shaping the outer radiator of injection forming macromolecular material thereon again, outer radiator is made to envelope the radiator of part inner radiator formation integrative-structure, whole manufacture craft is simple, and the radiator adopting the method to prepare can play good radiating effect, and the radiator of relatively complete ceramic material has the advantage that quality alleviates, and ceramic material and macromolecular material are all electrical insulators, application safety;
3, in the present invention LED lamp adopt by the thermal conductivity better and outer radiator of lightweight macromolecular material and structure simply, the radiator of integrative-structure that formed of the inner radiator of the ceramic material of excellent thermal conductivity, integrate good heat dissipation, manufacturing process is simple, lightweight, be applicable to extensive use.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
The generalized section of a kind of LED lamp that Fig. 1 provides for the embodiment of the present invention 3;
The schematic perspective view of a kind of LED lamp that Fig. 2 provides for the embodiment of the present invention 3;
Three kinds of difform supporting part schematic diagrames of the LED lamp that Fig. 3 provides for the embodiment of the present invention 3;
The generalized section of the another kind of LED lamp that Fig. 4 provides for the embodiment of the present invention 4;
The schematic perspective view of the another kind of LED lamp that Fig. 5 provides for the embodiment of the present invention 4;
The generalized section of the another kind of LED lamp that Fig. 6 provides for the embodiment of the present invention 5;
The schematic perspective view of the another kind of LED lamp that Fig. 7 provides for the embodiment of the present invention 5;
The generalized section of the another kind of LED lamp that Fig. 8 provides for the embodiment of the present invention 6;
The schematic perspective view of the another kind of LED lamp that Fig. 9 provides for the embodiment of the present invention 6;
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
embodiment 1
The embodiment of the present invention 1 discloses a kind of preparation method of radiator, comprises step:
A () prepares ceramic size;
B () utilizes ceramic size, forming ceramic base substrate;
C ceramic body is put into sintering furnace and is carried out sintering the inner radiator forming ceramic material by ();
D the inner radiator that sintering is formed is put into a mould by (), then macromolecular material injection forming is formed on the inner radiator of sintering formation the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.
Be specially in step (a), take purity be 95% alumina powder 100 grams put into the ball grinder of polyurethane, add 200g zirconium oxide balls and 100g deionized water again, the rotating speed ball milling with 50r/min on tumbling ball mill obtains ceramic size in 24 hours;
Be specially in step (b), ceramic size is taken out from ball grinder, put into 110 DEG C of baking oven bakings and obtain ceramic powder in 5 hours, then ceramic powder is taken out and grind and cross 85 mesh sieves, then adopt dry pressing that ceramic powder dry-pressing under 8MPa pressure is obtained ceramic body in 0.5 minute, owing to preparing the simple ceramic body of structure in embodiment 1, dry pressing therefore can be adopted to prepare ceramic body, and dry pressing manufacture craft is simple, the process-cycle is short;
Be specially in step (c), ceramic body is put into sintering furnace and carry out sintering the inner radiator forming alumina ceramic material, wherein, sintering temperature is 1590 DEG C, is incubated 4 hours.
Be specially in step (d), the inner radiator sintered is put into a mould, then macromolecular material injection forming is formed on the inner radiator sintered the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.Wherein the thermal conductivity factor of macromolecular material is: 0.8W/ (m.K), density range is: 0.8 ~ 2.3g/cm
3, be preferably 1.65g/cm
3, the macromolecular material quality that the present invention China and foreign countries radiator adopts is light, and heat conductivility is better.
embodiment 2
The embodiment of the present invention 2 discloses the preparation method of another kind of radiator, comprises step:
A () prepares ceramic size;
B () utilizes ceramic size, forming ceramic base substrate;
C ceramic body is put into sintering furnace and is carried out sintering the inner radiator forming ceramic material by ();
(c ') inner radiator comprises a light source loading face and a power supply components and parts loading end, and in this step, laminating power supply components and parts are on the power supply components and parts loading end of inner radiator.
D the inner radiator that sintering is formed is put into a mould by (), then macromolecular material injection forming is formed on the inner radiator of sintering formation the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.
Be specially in step (a), take purity be 97% zirconia powder 100 grams put into the ball grinder of polyurethane, add 200g zirconium oxide balls and 100g deionized water again, the rotating speed ball milling with 60r/min on tumbling ball mill obtains ceramic size in 22 hours;
Be specially in step (b), ceramic size is taken out from ball grinder, put into 110 DEG C of baking oven bakings and obtain ceramic powder in 5 hours, then ceramic powder is taken out and grind and cross 85 mesh sieves, then adopt dry pressing that ceramic powder dry-pressing under 6MPa pressure is obtained ceramic body in 1 minute, owing to preparing the simple ceramic body of structure in embodiment 1, therefore dry pressing can be adopted to prepare ceramic body, dry pressing manufacture craft is simple, and the process-cycle is short, pollution-free;
Be specially in step (c), ceramic body is put into sintering furnace and carry out sintering the inner radiator forming alumina ceramic material, wherein, sintering temperature is 1500 DEG C, is incubated 6 hours.
Be specially in step (c '), power supply components and parts loading end and light source loading face are two different faces on inner radiator.Further, be also included in this step and power supply components and parts loading end apply circuit for by each power supply components and parts electrical connection.
Be specially in step (d), the inner radiator sintered is put into a mould, then macromolecular material injection forming is formed on the inner radiator sintered the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.Wherein the thermal conductivity factor of macromolecular material is: 3W/ (m.K), and density is preferably: 0.8 ~ 2.3g/cm
3, the best is 1.65g/cm
3, the macromolecular material quality that the present invention China and foreign countries radiator adopts is light, good heat conductivity.
It should be noted that: the ceramic material preparing inner radiator in the present invention can be one or more in aluminium oxide, zirconia, beryllium oxide, boron nitride, carborundum.Ceramic body is preferably dry pressure formed, if do not need to consider Simplified flowsheet and environmental issue, ceramic body also can adopt hot die-casting method or injection shaping.
The preparation method of radiator disclosed in this invention, manufacture craft is simple, and the process-cycle is short, pollution-free.
In addition, the radiator having the method to prepare is on the basis ensureing great heat radiation effect, and quality alleviates, application safety.
embodiment 3
As shown in Figure 1 and Figure 2, be respectively generalized section and the schematic perspective view of a kind of LED lamp disclosed by the invention, comprise connected lamp holder 1, lamp body, also comprise the cell-shell or lens (not marking in figure) that connect lamp body, described lamp body comprises a radiator 2, the radiator that the radiator 2 adopted in the embodiment of the present invention 3 is prepared for method described in embodiment 1.Described radiator 2 comprises inner radiator 21 that ceramic material makes and the outer radiator 22 that macromolecular material is made, and described inner radiator 21 is structure as a whole with outer radiator 22.Described inner radiator 21 comprises supporting part 211 and a holding part 212, and described supporting part 211 is connected with holding part 212 and forms inner radiator 21, and the external diameter of described supporting part 211 is greater than the external diameter of described holding part 212.Described inner radiator 21 also comprises a light source loading face 2111, and described light source loading face 2111 is an end face away from described holding part 212 on described supporting part 211, and described light source loading face 2111 is provided with 6 LED light sources 3.
The cylinder of described supporting part 211 to be a thickness be 2mm, described holding part 212 is a hollow circular cylinder, hollow space is that a power supply settles cavity 2121, for settling power supply (not shown), the wall thickness of described holding part 212 is 8mm, and the thickness of supporting part 211 disclosed in the present invention and the wall thickness of holding part 212 are more conducive to the heat radiation of LED lamp.Described supporting part 211 is also provided with the demoulding hole 2112 and power line cable hole 2113 axially run through, described demoulding hole 2112 and power line cable hole 2113 all settle cavity 2121 to be connected with power supply, the demoulding when preparing inner radiator is convenient in demoulding hole 2112, power line cable hole 2113 passes for power line, is electrically connected to LED light source 3.
Described outer radiator 22 is a pyramidal structure matched with inner radiator 21, tapering is 45 °, described outer radiator 22 envelopes the radiator 2 that part inner radiator 21 forms integrative-structure, described outer radiator 22 is also provided with radiating fin 221, is beneficial to radiator and better dispels the heat.The upper surface 222 of described outer radiator 22 is 6mm higher than the light source loading face 2111 of inner radiator 21.
It should be noted that, described supporting part 211 can also replace with star-like cylinder, circumferentially be distributed with the structure of the cylinder (shape of such as petal) of multiple circular arc projection, Rotary-table or other similar cylinder, in order to attractive in appearance, described supporting part 211 can also be provided with one or more hollow out shape, as shown in Figure 3 the schematic diagram of 3 kinds of difform supporting parts 211.In addition, in other alternate embodiment, the thickness of described supporting part 211 can be selected in the scope of 5 ~ 9mm, and the wall thickness of described holding part 212 can be selected in the scope of 1 ~ 8mm.
embodiment 4
As shown in Figure 4, Figure 5, the generalized section of another kind of LED lamp disclosed by the invention and schematic perspective view, comprise connected lamp holder 1, lamp body, also comprise the cell-shell or lens (not marking in figure) that connect lamp body, described lamp body comprises a radiator 2, the radiator that the radiator 2 adopted in the embodiment of the present invention 4 is prepared for method described in embodiment 1.Described radiator 2 comprises inner radiator 21 that ceramic material makes and the outer radiator 22 that macromolecular material is made, and described inner radiator 21 is structure as a whole with outer radiator 22.Described inner radiator 21 is the cylinder of a part of hollow, hollow space is that a power supply settles cavity 2121, for settling power supply (not shown), described inner radiator 21 also comprises a light source loading face 2111, and described light source loading face 2111 is provided with 6 LED light sources 3.In addition, described cylinder is also provided with the demoulding hole 2112 and power line cable hole 2113 axially run through, described demoulding hole 2112 and power line cable hole 2113 all settle cavity 2121 to be connected with power supply, the demoulding when preparing inner radiator is convenient in demoulding hole 2112, power line cable hole 2113 passes for power line, is electrically connected to LED light source 3.
Described outer radiator 22 is a pyramidal structure matched with inner radiator 21, tapering is 45 °, described outer radiator 22 envelopes the radiator 2 that part inner radiator 21 forms integrative-structure, described outer radiator 22 is also provided with radiating fin 221, is beneficial to radiator and better dispels the heat.The upper surface 222 of described outer radiator 22 is 4mm higher than the light source loading face 2111 of inner radiator 21.
embodiment 5
As shown in Figure 6, Figure 7, the generalized section of another kind of LED lamp disclosed by the invention and schematic perspective view, comprise connected lamp holder 1, lamp body, also comprise the cell-shell or lens (not marking in figure) that connect lamp body, described lamp body comprises a radiator 2, the radiator that the radiator 2 adopted in the embodiment of the present invention 4 is prepared for method described in embodiment 1.Described radiator 2 comprises inner radiator 21 that ceramic material makes and the outer radiator 22 that macromolecular material is made, and described inner radiator 21 is structure as a whole with outer radiator 22.Described inner radiator 21 is the Rotary-table of a part of hollow, hollow space is that a power supply settles cavity 2121, for settling power supply (not shown), described inner radiator 21 also comprises a light source loading face 2111, and described light source loading face 2111 is provided with 6 LED light sources 3.In addition, described Rotary-table is also provided with the demoulding hole 2112 and power line cable hole 2113 axially run through, described demoulding hole 2112 and power line cable hole 2113 all settle cavity 2121 to be connected with power supply, the demoulding when preparing inner radiator is convenient in demoulding hole 2112, power line cable hole 2113 passes for power line, is electrically connected to LED light source 3.
Described outer radiator 22 is a pyramidal structure matched with inner radiator 21, tapering is 55 °, described outer radiator 22 envelopes the radiator 2 that part inner radiator 21 forms integrative-structure, described outer radiator 22 is also provided with radiating fin 221, is beneficial to radiator and better dispels the heat.The upper surface 222 of described outer radiator 22 flushes with the light source loading face of inner radiator 21.
embodiment 6
As shown in Figure 8, Figure 9, the generalized section of another kind of LED lamp disclosed by the invention and schematic perspective view, comprise connected lamp holder 1, lamp body, also comprise the cell-shell or lens (not marking in figure) that connect lamp body, described lamp body comprises a radiator 2, the radiator that the radiator 2 adopted in the embodiment of the present invention 3 is prepared for method described in embodiment 2.Described radiator 2 comprises inner radiator 21 that ceramic material makes and the outer radiator 22 that macromolecular material is made, and described inner radiator 21 is structure as a whole with outer radiator 22.Described inner radiator 21 comprises supporting part 211 and a holding part 212, and described supporting part 211 is connected with holding part 212 and forms inner radiator 21, and the external diameter of described supporting part 211 is greater than the external diameter of described holding part 212.Described inner radiator 21 also comprises light source loading face 2111 and a power supply components and parts loading end 2123, described light source loading face 2111 is an end face away from described holding part 212 on described supporting part 211, and described light source loading face 2111 is provided with 6 LED light sources 3.
The cylinder of described supporting part 211 to be a thickness be 12mm, described holding part 212 is a hollow circular cylinder, namely this hollow circular cylinder comprises a hollow space 2122, the wall thickness of described holding part 212 is 1mm, the inner surface of the hollow space 2122 that described power supply components and parts loading end 2123 is formed for holding part 212 and supporting part 211, described power supply components and parts loading end 2123 is provided with 8 power supply components and parts 4, in described holding part 212, vacancy is filled with macromolecular material, and described power supply components and parts 4 are covered by between inner radiator 21 and outer radiator 22.The thickness of supporting part 211 disclosed in the present invention and the wall thickness of holding part 212 are more conducive to the heat radiation of LED lamp.Described supporting part 211 is also provided with the demoulding hole 2112 and power line cable hole 2113 axially run through, described demoulding hole 2112 and power line cable hole 2113 are all connected with hollow space 2121, the demoulding when preparing inner radiator is convenient in demoulding hole 2112, power line cable hole 2113 passes for power line, is electrically connected to LED light source 3.
Described outer radiator 22 is a pyramidal structure matched with inner radiator 21, tapering is 50 °, described outer radiator 22 envelopes the radiator 2 that part inner radiator 21 forms integrative-structure, described outer radiator 22 is also provided with radiating fin 221, is beneficial to radiator and better dispels the heat.The upper surface 222 of described outer radiator 22 is 5mm higher than the light source loading face 2111 of inner radiator 21.
LED lamp disclosed in the present embodiment, because power supply components and parts 4 are covered by between inner radiator 21 and outer radiator 22, so power supply components and parts 4 are sealed between the two, the protection effects such as good waterproof and dustproof can be reached, in addition, power supply components and parts 4 all directly contact with outer radiator 22 with inner radiator 21, are more conducive to the heat radiation of power supply components and parts 4.
It should be noted that, described supporting part 211 can also replace with star-like cylinder, circumferentially be distributed with the structure of the cylinder (shape of such as petal) of multiple circular arc projection, Rotary-table or other similar cylinder, in order to attractive in appearance, described supporting part 211 can also be provided with one or more hollow out shape.In addition, in other alternate embodiment, the thickness of described supporting part 211 can carry out preferably in the scope of 5 ~ 9mm, and the wall thickness of described holding part 212 can carry out preferably in the scope of 1 ~ 8mm.
In disclosed embodiment of this invention, the upper surface of preferred outer radiator flushes higher than the light source loading face of inner radiator or both, and in other embodiments, the upper surface of outer radiator also can lower than the light source loading face of inner radiator.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (28)
1. a preparation method for radiator, is characterized in that, comprises step:
A () prepares ceramic size;
B () utilizes ceramic size, forming ceramic base substrate;
C ceramic body is put into sintering furnace and is carried out sintering the inner radiator forming ceramic material by ();
D the inner radiator that sintering is formed is put into a mould by (), then macromolecular material injection forming is formed on the inner radiator of sintering formation the outer radiator of macromolecular material, after described macromolecular material injection forming, make outer radiator envelope the radiator of part inner radiator formation integrative-structure.
2. the preparation method of radiator as claimed in claim 1, is characterized in that: in described step (b), ceramic body adopts dry pressure formed.
3. the preparation method of radiator as claimed in claim 1, is characterized in that: in described step (b) ceramic body adopt hot die-casting method or injection shaping.
4. the preparation method of radiator as claimed in claim 1, is characterized in that: described ceramic material is one or more in aluminium oxide, zirconia, beryllium oxide, boron nitride, carborundum.
5. the preparation method of radiator as claimed in claim 1, is characterized in that: the thermal conductivity factor of described macromolecular material is: 0.8 ~ 3W/ (m.K).
6. the preparation method of radiator as claimed in claim 5, is characterized in that: the density range of described macromolecular material is: 0.8 ~ 2.3g/cm
3.
7. the preparation method of radiator as claimed in claim 1, it is characterized in that: in step (c), sintering temperature is: 1500 ~ 1590 DEG C, and temperature retention time is 4 ~ 6 hours.
8. the preparation method of the radiator according to any one of claim 1 ~ 7, is characterized in that: described inner radiator comprises a light source loading face and/or a power supply components and parts loading end.
9. the preparation method of radiator as claimed in claim 8, it is characterized in that: between step (c) and step (d), also comprise step (c '), namely fit power supply components and parts on the power supply components and parts loading end of inner radiator.
10. one kind comprises the LED lamp of radiator prepared by method as claimed in claim 8, comprise connected lamp holder, lamp body, also comprise the cell-shell or lens that connect lamp body, described lamp body comprises a radiator, it is characterized in that, this radiator comprises the inner radiator of ceramic material and the outer radiator of macromolecular material, and the light source loading face of described inner radiator is provided with one or more LED light source.
11. LED lamp as claimed in claim 10, is characterized in that: described inner radiator: be made up of the supporting part be connected and a holding part, or comprise a connected supporting part and a holding part;
Wherein, an end face away from described holding part on described supporting part forms light source loading face.
12. LED lamp as claimed in claim 11, is characterized in that: the external diameter of described supporting part is greater than the external diameter of described holding part.
13. LED lamp as claimed in claim 12, is characterized in that: described holding part is hollow circular cylinder, and hollow space is that a power supply settles cavity, for settling power supply.
14. LED lamp as claimed in claim 13, is characterized in that: described supporting part is cylinder, star-like cylinder, Rotary-table or be circumferentially distributed with the cylinder of multiple circular arc projection.
15. LED lamp as claimed in claim 14, is characterized in that: described supporting part is provided with the demoulding hole and power line cable hole axially run through.
16. LED lamp as claimed in claim 15, is characterized in that: the thickness of described supporting part is 2 ~ 12mm, and the wall thickness of described holding part is 1 ~ 8mm.
17. LED lamp as claimed in claim 10, it is characterized in that: described inner radiator is the cylinder of a part of hollow or the Rotary-table of a part of hollow, hollow space is that a power supply settles cavity, for settling power supply, on described cylinder or on Rotary-table, be provided with the demoulding hole and power line cable hole axially run through.
18. LED lamp according to any one of claim 10 ~ 17, it is characterized in that: described outer radiator is pyramidal structure, tapering is 45 ° ~ 55 °.
19. LED lamp as claimed in claim 18, is characterized in that: described outer radiator is provided with radiating fin, and the upper surface of described outer radiator flushes higher than the light source loading face 4 ~ 6mm of inner radiator or both.
20. 1 kinds of LED lamp comprising radiator prepared by method as claimed in claim 9, comprise connected lamp holder, lamp body, also comprise the cell-shell or lens that connect lamp body, described lamp body comprises a radiator, it is characterized in that, this radiator comprises the inner radiator of ceramic material and the outer radiator of macromolecular material, and the light source loading face of described inner radiator is provided with one or more LED light source, and the power supply components and parts loading end of described inner radiator is provided with one or more power supply components and parts.
21. LED lamp as claimed in claim 20, is characterized in that, described inner radiator: be made up of the supporting part be connected and a holding part, or comprise a connected supporting part and a holding part;
Wherein, an end face away from described holding part on described supporting part forms light source loading face.
22. LED lamp as claimed in claim 21, is characterized in that: the external diameter of described supporting part is greater than the external diameter of described holding part.
23. LED lamp as claimed in claim 22, is characterized in that: described holding part is hollow circular cylinder, described power supply components and parts loading end is the inner surface of the hollow space that holding part and described supporting part are formed.
24. LED lamp as claimed in claim 23, it is characterized in that: in described holding part, vacancy is filled with macromolecular material, described power supply components and parts are covered by between inner radiator and outer radiator.
25. LED lamp as described in claim 23 or 24, is characterized in that: described supporting part is cylinder, star-like cylinder, Rotary-table or be circumferentially distributed with the cylinder of multiple circular arc projection.
26. LED lamp as claimed in claim 25, is characterized in that: described supporting part is provided with the demoulding hole and power line cable hole axially run through.
27. LED lamp as claimed in claim 20, is characterized in that: described outer radiator is pyramidal structure, tapering is 45 ° ~ 55 °.
28. LED lamp as claimed in claim 28, is characterized in that: described outer radiator is provided with radiating fin, and the upper surface of described outer radiator is higher than the light source loading face 4 ~ 6mm of inner radiator.
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| WO2020228598A1 (en) * | 2019-05-10 | 2020-11-19 | Jiaxing Super Lighting Electric Appliance Co., Ltd | Led lighting device |
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