CN109084288A - A kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns - Google Patents
A kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns Download PDFInfo
- Publication number
- CN109084288A CN109084288A CN201811009892.6A CN201811009892A CN109084288A CN 109084288 A CN109084288 A CN 109084288A CN 201811009892 A CN201811009892 A CN 201811009892A CN 109084288 A CN109084288 A CN 109084288A
- Authority
- CN
- China
- Prior art keywords
- lamps
- lanterns
- thermoplastic resin
- injection molded
- radiating piece
- 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.)
- Pending
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Classifications
-
- 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
- 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
-
- 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
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
Abstract
The invention discloses a kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns; the lamps and lanterns radiating piece includes heat radiating metal part and the thermoplastic resin injection molded layers set on heat radiating metal part outer surface; the thermoplastic resin injection molded layers include so that the bubble layer that is reduced of thermoplastic resin injection molded layers integral thickness and be covered on the protective layer of bubble layer surface, the thermoplastic resin injection molded layers with a thickness of 0.7~0.9mm.Presence of the present invention due to bubble; the density of thermoplastic resin injection molded layers can be reduced; the wall thickness of thermoplastic resin injection molded layers can be reduced to a certain degree; be conducive to radiating piece and play heat dissipation performance; when being impacted; bubble can absorb certain impact force, so that shock resistance enhances, while the protective layer for being covered on bubble layer surface can form bubble layer and protect.
Description
Technical field
The present invention relates to lighting engineering, and in particular to lamps and lanterns.
Background technique
Currently, common lamps and lanterns radiating piece includes heat dissipation aluminum component and the thermoplastic resin for being covered on heat dissipation aluminum component outer surface
Injection molded layers, it is main to be radiated by the aluminum component that radiates, it is therefore, usually thick by increasing heat dissipation aluminum component in order to improve heat dissipation performance
It spends with area and realizes.And thermoplastic resin injection molded layers are then required with certain intensity and toughness, there is drop test and prevents opening
Requirement is split, generally increases intensity by increasing wall thickness form, such higher cost, after increasing wall thickness, generally 1~1.5mm,
Heat dissipation effect is affected again.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of lamps and lanterns radiating piece, improve heat dissipation effect, and guarantees heat
Plastic resin injection molded layers have enough structural strengths and toughness.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of lamps and lanterns radiating piece, including heat radiating metal
Part and thermoplastic resin injection molded layers set on heat radiating metal part outer surface, the thermoplastic resin injection molded layers include so that thermoplastic
Property the bubble layer that is reduced of resin injection molded layers integral thickness and be covered on the protective layer of bubble layer surface, the thermoplastic resin
Injection molded layers with a thickness of 0.7~0.9mm.
By adopting the above technical scheme, thermoplastic resin injection molded layers have bubble layer to the present invention, while thermoplastic resin being infused
The thickness of modeling layer is reduced to 0.7~0.9mm, and heat radiating metal part can be conventional heat dissipation aluminum component.
Therefore, the invention has the following beneficial effects:
Due to the presence of bubble, the density of thermoplastic resin injection molded layers can be reduced, for example, bubble mean diameter 10~
At 50 μm, global density about declines 3%~8%, alleviates weight, reduces costs.
Due to the presence of bubble, the wall thickness of thermoplastic resin injection molded layers can be reduced to a certain degree, be conducive to the aluminum component that radiates
Heat dissipation performance is played, for example, keep heat dissipation aluminum component thickness constant when thermoplastic resin injection molded layers are with a thickness of 0.7~0.9mm,
After tested, heat-sinking capability can improve 5%~10% after wall thickness reduces.
Due to the presence of bubble, when being impacted, bubble can absorb certain impact force, so that shock resistance increases
By force, intensity requirement can be reached without increasing wall thickness, reduced costs, while the protective layer for being covered on bubble layer surface can be right
Bubble layer forms protection.
Since the thickness of thermoplastic resin injection molded layers is reduced to 0.7~0.9mm, and the setting of bubble layer is combined, both protected
Demonstrate,proving thermoplastic resin injection molded layers has enough structural strengths and toughness, and is unlikely to the thickness mistake of thermoplastic resin injection molded layers
Greatly, the reduction of lamps and lanterns radiating piece integral heat sink ability is caused.
Preferably, the diameter of bubble is not more than 100 μm in the bubble layer.
Preferably, the diameter of bubble is not more than 50 μm in the bubble layer.
Preferably, the protective layer with a thickness of 0.15~0.25mm.
Preferably, the heat radiating metal part with a thickness of 0.2-0.4mm.
Preferably, the raw material of the thermoplastic resin injection molded layers includes PBT or PA, and adds and account for total mass of raw material
The glass of 20%-30%.
The present invention also provides a kind of lamps and lanterns radiating piece moulding process, include the following steps:
S1 melts injection plastics；
S2 is filled with gas to plastics in a molten state；
The molten plastic for being filled with gas injection is entered and is placed in the mold cavity of heat radiating metal part by S3；
S4 is combined after thermoplastic resin injection molded layers are cooling and is formed above-mentioned lamps and lanterns radiating piece in heat radiating metal part outer surface.
The present invention by adopting the above technical scheme, in screw in injection molding machine extrusion device when thermoplastic resin injection molded layers injection molded
It is inside filled with a certain proportion of high pressure gas, gas forms uniformly fine and closely woven honeycomb in injection inside thermoplastic resin injection molded layers
Shape bubble can reduce the wall thickness of thermoplastic resin injection molded layers using the technique, reduce cost, is conducive to heat dissipation aluminum component performance and dissipates
Hot property, and shock resistance is enhanced, promote product competitiveness.
Preferably, the gas includes nitrogen, carbon dioxide, pure air or inert gas.
The present invention also provides a kind of lamps and lanterns, including above-mentioned radiating piece.
Wherein, the lamps and lanterns are Projecting Lamp, downlight, shot-light, panel light, bulb lamp, T lamp or flying saucer lamp.
Since the lamps and lanterns use above-mentioned structural member, the beneficial effect also having with the structural member.
The specific technical solution of the present invention and its advantages will in the following detailed description in conjunction with attached drawing into
Row detailed description.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is that the present invention is applied in structural schematic diagrams on the radiator of bulb lamp；
Fig. 2 is structural schematic diagram at A in Fig. 1；
Fig. 3 is that the present invention is applied in structural schematic diagrams on the radiator of T lamp；
Fig. 4 is structural schematic diagram at B in Fig. 3；
Fig. 5 is that the present invention is applied in structural schematic diagrams on the radiation shell of downlight；
Fig. 6 is A-A the schematic diagram of the section structure in Fig. 5；
Fig. 7 is structural schematic diagram at C in Fig. 6；
Fig. 8 is that the present invention is applied in structural schematic diagrams on the radiation shell of Projecting Lamp；
Fig. 9 is B-B the schematic diagram of the section structure in Fig. 8；
Figure 10 is structural schematic diagram at D in Fig. 9；
Figure 11 is that the present invention is applied in structural schematic diagrams on the radiation shell of flying saucer lamp；
Figure 12 is E-E the schematic diagram of the section structure in Figure 11.
Specific embodiment
Embodiment one, referring to figs. 1 to shown in Figure 12, a kind of lamps and lanterns radiating piece, including heat radiating metal part 1 and be covered on scattered
The thermoplastic resin injection molded layers 2 of thermometal part outer surface, at the same the thermoplastic resin injection molded layers 2 with a thickness of 0.7~
0.9mm, it is of course possible to including 0.7mm and 0.9mm.
In the present embodiment, heat radiating metal part 1 is heat dissipation aluminum component, has the advantages that low cost and perfect heat-dissipating, certainly,
It will be appreciated by persons skilled in the art that other metal substitute aluminium can also be used.For different lamps and lanterns, heat radiating metal part 1
Structure would also vary from.
Here, thermoplastic resin injection molded layers with a thickness of 0.7~0.9mm, be adapted to different lamps and lanterns, such as light projector
Lamp, downlight, bulb lamp, T lamp or flying saucer lamp etc..Thermoplastic resin injection molded layers 2 with a thickness of 0.7~0.9mm, with specific reference to figure
1, position L shown in Fig. 3, Fig. 6, Fig. 9, Figure 12, position L are plane, circular arc or arc transition or combinations of the above.And for
Shown in Fig. 2, Fig. 4, Fig. 7, Figure 10, part has the similar structures such as step, angle transition, or has specially designed structure,
Cooperate for convenience with mold, be not comprised in thermoplastic resin injection molded layers with a thickness of 0.7~0.9mm within the scope of this.Heat
Plastic resin injection molded layers thickness be measured as thermoplastic resin injection molded layers outer surface to heat dissipation aluminum component corresponding outer surface most short distance
From.
Certainly, the thermoplastic resin injection molded layers include for mitigate weight and enhance shock resistance bubble layer and cover
Cover the protective layer in bubble layer surface.In general, the diameter of bubble is not more than 100 μm in bubble layer, 10~50 μ of average diameter
M, protective layer can protect bubble in bubble layer, and make thermoplastic resin injection molded layers surfacing.It is further preferred, it is described
The diameter of bubble can also be not more than 50 μm in bubble layer.
The present invention breaks through current technology prejudice, it may be assumed that the promotion of heat dissipation performance is realized by increasing heat dissipation aluminum component thickness,
Increase thermoplastic resin injection molded layers wall thickness and meets drop test and crack resistence requirement.
The technical solution adopted by the present invention: pass through 10~50 μm of bubbles of inside average diameter of thermoplastic resin injection molded layers
Setting, not only makes thermoplastic resin injection molded layers global density about decline 3%~8%, reduces costs.And depositing due to bubble
, the wall thickness of thermoplastic resin injection molded layers can be reduced to a certain degree, be conducive to the aluminum component performance heat dissipation performance that radiates, after tested,
Heat-sinking capability can improve 5%~10% after wall thickness reduces.Further, since the presence of bubble, when being impacted, bubble can absorb
Certain impact force can reach intensity requirement without increasing wall thickness, reduce costs so that shock resistance enhances.Finally,
If bubble mean diameter is excessive, it will affect product surface quality, be also unable to satisfy structural strength and toughness reguirements.
Since lamps and lanterns radiating piece generally moulds alclad, i.e. aluminum component shape wraps up one layer of plastics, in cooling thermal impact test, no
Shrinkage ratio with material is the maximum reason for causing product to crack.The present invention has average in the inside of thermoplastic resin injection molded layers
The bubble that 10~50 μm of diameter, make plastic-aluminum part itself internal stress exist improved, and cooling thermal impact test in due to
Be charged gas in the body of plastic and improve the toughness of plastic, make test more easily by.
In addition, it is necessary to explanation, the distribution of bubble has scrambling and discontinuity, since bubble diameter is smaller,
Naked eyes can not be observed, and calculating can be usually measured by microscope.
In the present embodiment, the wall thickness of the thermoplastic resin injection molded layers is preferably 0.7-0.8mm, such as can be
0.8mm reduces wall thickness compared with the wall thickness of 1~1.5mm in the prior art, and heat-sinking capability can improve 5%~10%.
Certainly, in order to guarantee the good heat dissipation performance of lamps and lanterns radiating piece, can be by the thickness design of the heat dissipation aluminum component
0.2-0.4mm.Since the wall thickness of thermoplastic resin injection molded layers in the present invention is reduced, if heat dissipation aluminum component thickness is excessive instead
The risks such as radiating piece thermoplastic resin injection molded layers cracking are easily caused, and will increase cost, certainly, also can if thickness is too small
Heat dissipation performance is influenced, the reduction of heat dissipation performance is caused.
Wherein, the raw material of the thermoplastic resin injection molded layers includes that (PBT plastic refers to polybutylene terephthalate to PBT
A kind of plastics constituted based on ester) or PA (nylon, polyamide), and add the glass of quality accounting 20%-30%.Increase
Glass fiber material is added to contribute to form the stabilization gas core of molten condition, the glass fiber content of 20%-30% relatively suitably forms after tested
Stablize gas core, and the glass additive amount of 20%-30% is also related with bubble mean diameter, the glass of 20%-30% is also
It is not more than 100 μm to guarantee that the inside of thermoplastic resin injection molded layers forms diameter, the bubble that 10~50 μm of average diameter.
Certainly, it will be appreciated by persons skilled in the art that can also routinely use it using on current lamps and lanterns radiating piece
His thermoplastic resin injection molded layers raw material.
A kind of embodiment two, lamps and lanterns radiating piece moulding process, includes the following steps:
S1 melts injection plastics；
S2 is filled with gas to plastics in a molten state；
The molten plastic for being filled with gas injection is entered and is placed in the mold cavity of heat radiating metal part by S3；
S4, the lamps and lanterns radiating piece after thermoplastic resin injection molded layers are cooling in conjunction with described in being formed in heat radiating metal part outer surface.
Wherein, using injection moulding machine injection molding, the injection moulding machine includes screw extrusion apparatus, and the screw rod squeezes
Device includes heating cylinder body and is set to the intracorporal screw rod of heating cylinder out, and when injection molding, screw rod rotates in heating cylinder body, together
When gas is filled with into heating cylinder body, be uniformly distributed gas fusion core by the movement of screw rod, then by adjust pressure
And air inflow ensures that bubble diameter reaches design requirement.
Certainly, it will be appreciated by persons skilled in the art that gas can be in the leading portion of heating cylinder body, middle section or back segment
It is filled with.
It is molded into the pressure mold cavity small relative to screw portion and forms unstable state and bubbing, the size of bubble
Depending on the speed that special screw rod big gun cylinder pressure and gas enter, therefore, the charge of gas, charged pressure and it is filled with speed
It can be specifically chosen in operation, but need to ensure that bubble diameter reaches design requirement.
Wherein, the gas may include nitrogen, carbon dioxide, pure air or inert gas.It is, of course, preferable to using
Carbon dioxide or nitrogen both have lower cost, while gas stabilization might as well.
Embodiment three, a kind of lamps and lanterns, including above-mentioned radiating piece.
It will be appreciated by persons skilled in the art that above-mentioned radiating piece may be generally referred to as in different types of lamps and lanterns
Radiator, heat radiating cup, heat radiating metal part, lamp casing etc., with distribute the heat of the generations such as the circuit board of lamps and lanterns, light source
Effect.
Wherein, the lamps and lanterns are Projecting Lamp, downlight, shot-light, panel light, bulb lamp, T lamp or flying saucer lamp.
Fig. 1 and Fig. 2 is the example of bulb lamp heat radiator, and Fig. 3 and Fig. 4 are the examples of T lamp radiator, and Fig. 5 to Fig. 7 is downlight
The example of radiation shell, Fig. 8 to Figure 10 are the examples of Projecting Lamp radiation shell, and Figure 11 to Figure 12 is the example of flying saucer lamp radiation shell.When
So, it will be appreciated by persons skilled in the art that the lamps and lanterns of concrete application are not limited to above-mentioned enumerate.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to content described in specific embodiment above.It is any
Modification without departing from function and structure principle of the invention is intended to be included in the range of claims.
Claims (10)
1. a kind of lamps and lanterns radiating piece, the thermoplastic resin including heat radiating metal part and set on heat radiating metal part outer surface is molded
Layer, it is characterised in that: the thermoplastic resin injection molded layers include so that thermoplastic resin injection molded layers integral thickness is reduced
Bubble layer and the protective layer for being covered on bubble layer surface, the thermoplastic resin injection molded layers with a thickness of 0.7~0.9mm.
2. a kind of lamps and lanterns radiating piece according to claim 1, it is characterised in that: the diameter of bubble is little in the bubble layer
In 100 μm.
3. a kind of lamps and lanterns radiating piece according to claim 1, it is characterised in that: the diameter of bubble is little in the bubble layer
In 50 μm.
4. a kind of lamps and lanterns radiating piece according to claim 1, it is characterised in that: the protective layer with a thickness of 0.15~
0.25mm。
5. a kind of lamps and lanterns radiating piece according to claim 1, it is characterised in that: the heat radiating metal part with a thickness of 0.2
~-0.4mm.
6. according to claim 1 to a kind of lamps and lanterns radiating piece described in 5 any one, it is characterised in that: the thermoplastic resin
The raw material of injection molded layers includes PBT or PA, and adds the glass for accounting for total mass of raw material 20%-30%.
7. a kind of lamps and lanterns radiating piece moulding process, it is characterised in that include the following steps:
S1 melts injection plastics；
S2 is filled with gas to plastics in a molten state；
The molten plastic for being filled with gas injection is entered and is placed in the mold cavity of heat radiating metal part by S3；
S4 is combined after thermoplastic resin injection molded layers are cooling and is formed claim 1 to 6 any one institute in heat radiating metal part outer surface
The lamps and lanterns radiating piece stated.
8. a kind of lamps and lanterns radiating piece moulding process according to claim 7, it is characterised in that: the gas include nitrogen,
Carbon dioxide, pure air or inert gas.
9. a kind of lamps and lanterns, it is characterised in that: including radiating piece described in any one of claim 1 to 6.
10. lamps and lanterns according to claim 9, it is characterised in that: the lamps and lanterns be Projecting Lamp, downlight, shot-light, panel light,
Bulb lamp, T lamp or flying saucer lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009892.6A CN109084288A (en) | 2018-08-31 | 2018-08-31 | A kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009892.6A CN109084288A (en) | 2018-08-31 | 2018-08-31 | A kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109084288A true CN109084288A (en) | 2018-12-25 |
Family
ID=64840512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811009892.6A Pending CN109084288A (en) | 2018-08-31 | 2018-08-31 | A kind of lamps and lanterns radiating piece and moulding process and lamps and lanterns |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960844A (en) * | 2004-07-26 | 2007-05-09 | 宇部兴产机械株式会社 | Method for injection expansion molding of thermoplastic resin |
| CN101117014A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Mold for optical plate and manufacturing method thereof, and optical plate and manufacturing method thereof |
| CN201808222U (en) * | 2010-08-31 | 2011-04-27 | 浙江虹达特种橡胶制品有限公司 | Manufacturing and molding equipment for microporous resin product |
| CN106738608A (en) * | 2016-11-25 | 2017-05-31 | 江苏翠钻照明有限公司 | Mould the preparation technology and the light fixture using the radiating piece of bag hardware radiating piece |
| CN107083058A (en) * | 2017-05-25 | 2017-08-22 | 中国工程物理研究院化工材料研究所 | Modified naphthyridine ketone structure PPESK, poromerics and preparation method |
-
2018
- 2018-08-31 CN CN201811009892.6A patent/CN109084288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1960844A (en) * | 2004-07-26 | 2007-05-09 | 宇部兴产机械株式会社 | Method for injection expansion molding of thermoplastic resin |
| CN101117014A (en) * | 2006-07-31 | 2008-02-06 | 三星电子株式会社 | Mold for optical plate and manufacturing method thereof, and optical plate and manufacturing method thereof |
| CN201808222U (en) * | 2010-08-31 | 2011-04-27 | 浙江虹达特种橡胶制品有限公司 | Manufacturing and molding equipment for microporous resin product |
| CN106738608A (en) * | 2016-11-25 | 2017-05-31 | 江苏翠钻照明有限公司 | Mould the preparation technology and the light fixture using the radiating piece of bag hardware radiating piece |
| CN107083058A (en) * | 2017-05-25 | 2017-08-22 | 中国工程物理研究院化工材料研究所 | Modified naphthyridine ketone structure PPESK, poromerics and preparation method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
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