CN110375267A - A kind of automobile lamp - Google Patents
A kind of automobile lamp Download PDFInfo
- Publication number
- CN110375267A CN110375267A CN201910589668.7A CN201910589668A CN110375267A CN 110375267 A CN110375267 A CN 110375267A CN 201910589668 A CN201910589668 A CN 201910589668A CN 110375267 A CN110375267 A CN 110375267A
- Authority
- CN
- China
- Prior art keywords
- lamp housing
- metal substrate
- heat
- plastic
- plastic lamp
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/46—Forced cooling using liquid
-
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- 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
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- 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]
Abstract
The present invention relates to a kind of automobile lamps, including plastic lamp housing and the Transparent lamp shade being mounted on front side of plastic lamp housing, metal substrate is fixedly connected on the inner surface of plastic lamp housing, LED chip is installed on metal substrate, the heat pipe that at least one is used to conduct heat between metal substrate and plastic lamp housing is equipped between metal substrate and the inner surface of plastic lamp housing.The present invention utilizes the theory of heat conduction amount and the amount phase equilibrium that radiates, it is thermally conductive by metal substrate and hot tube high-efficiency, plastic lamp housing high efficiency and heat radiation, the heat that LED chip generates quickly is dispersed into outside automobile lamp, effectively reduce the temperature inside automobile lamp, heat dissipation area and raising radiation efficiency can be increased by carrying out heat dissipation using the plastic lamp housing with micro-structure, to improve radiating efficiency.Cancel metal heat sink in the prior art, it is possible to reduce the weight and cost of automobile lamp can also reduce the occupancy to automobile lamp inner space, be advantageously implemented the automobile lamp that moulding is more complicated, more beautiful.
Description
Technical field
The present invention relates to automotive lightings, and in particular to a kind of automobile lamp.
Background technique
LED lamp has been widely used in automotive lighting field as a kind of efficient white light source, but LED chip
There is very high sensibility to temperature, when the junction temperature of LED chip is excessively high, the service life of LED chip and light extraction efficiency can all decline,
Therefore the heat dissipation problem of LED headlamp has become the most important thing of field of radiating.The prior art is mentioned by setting radiator
The radiating efficiency of LED lamp is risen, the radiator of current LED lamp is mostly metal heat sink made of being manufactured as metal, gold
The density of category is big, and unit volume possesses bigger weight, so that LED lamp becomes heavy, brings to security performance negative
It influences.And the radiation coefficient of metal is relatively low, and in free convection, metal heat sink is asked there are radiating efficiency is low
Topic.And metal heat sink is mounted on the inside of LED lamp, and heat is difficult to be dispersed into the environment outside LED lamp, it will makes
It is constantly increased at the temperature inside LED lamp, seriously affects the radiating efficiency of LED lamp.And heat collects inside LED lamp
It is poly-, LED chip can be brought a negative impact, while also the inside of LED lamp can be made to have caused since heat is unevenly distributed
Mist phenomenon.
Summary of the invention
The purpose of the present invention is to propose to a kind of automobile lamps with high efficiency and heat radiation to reduce automobile with improving heat radiation efficiency
Lamps and lanterns haze into the risk and automobile lamp weight and size of water.
A kind of automobile lamp of the present invention, including plastic lamp housing and the Transparent lamp shade that is mounted on front side of the plastic lamp housing,
It is fixedly connected with metal substrate on the inner surface of the plastic lamp housing, LED chip, the metal are installed on the metal substrate
Be equipped between substrate and the inner surface of the plastic lamp housing at least one be used for the metal substrate and the plastic lamp housing it
Between the heat pipe that conducts heat.
Further, the back side of the metal substrate is fitted on the inner surface of the plastic lamp housing.
Further, the front of the metal substrate is equipped with the positive support platform for protruding from the metal substrate, described
LED chip is installed in the support platform.
Further, the inner surface of the plastic lamp housing is equipped with the first mounting groove corresponding with the heat pipe, the Metal Substrate
The back side of plate is equipped with the second mounting groove corresponding with the heat pipe, first mounting groove and second mounting groove be combined into
The installation cavity that the heat pipe is mutually fitted into.
Further, the inner surface of the plastic lamp housing is equipped with boss, the back side of the metal substrate be equipped with it is described convex
The groove that platform is mutually fitted into, first mounting groove are arranged on the boss, and the second mounting groove setting is in the groove.
Further, the heat pipe is totally enclosed vacuum copper pipe.
Further, the outer surface of the plastic lamp housing is equipped with the micro-structure for increasing heat radiation area.
Further, the plastic lamp housing is equipped with multiple pairs of recirculation holes.
Further, radiation protective layer is covered on the outer surface of the plastic lamp housing.
Further, multiple groups heat pipe heat is equipped between the metal substrate and the inner surface of the plastic lamp housing, described in every group
Heat pipe heat includes the more heat pipes.
The present invention utilizes the theory of heat conduction amount and the amount phase equilibrium that radiates, thermally conductive by metal substrate and hot tube high-efficiency, has
The heat that LED chip generates quickly is dispersed into outside automobile lamp by the plastic lamp housing high efficiency and heat radiation of micro-structure, effective to drop
Temperature inside low automobile lamp, heat dissipation area and raising can be increased by carrying out heat dissipation using the plastic lamp housing with micro-structure
Radiation efficiency, to improve radiating efficiency.Cancel metal heat sink in the prior art, it is possible to reduce the weight of automobile lamp
And cost, the occupancy to automobile lamp inner space can also be reduced, be advantageously implemented the vapour that moulding is more complicated, more beautiful
Car light tool.
Detailed description of the invention
Fig. 1 is the cross-sectional view of automobile lamp as described in the examples；
Fig. 2 is the structural schematic diagram of plastic lamp housing；
Fig. 3 is the structural schematic diagram of metal substrate.
In figure: 1-plastic lamp housing；2-Transparent lamp shades；3-metal substrates；4-support platforms；5-LED chips；6-heat
Pipe；7-lens modules；8-case rings；9-boss；10-the first mounting groove；11-to recirculation hole；12-grooves；13-the
Two mounting grooves.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of automobile lamp as shown in Figure 1 to Figure 3 including plastic lamp housing 1 and is mounted on the transparent of 1 front side of plastic lamp housing
Lampshade 2 is fixedly connected with metal substrate 3 on the inner surface of plastic lamp housing 1, LED chip 5, Metal Substrate is equipped on metal substrate 3
The heat that at least one is used to conduct heat between metal substrate 3 and plastic lamp housing 1 is equipped between plate 3 and the inner surface of plastic lamp housing 1
Pipe 6.One surface of metal substrate 3 is the back side towards plastic lamp housing 1, another surface of metal substrate 3 is front, Metal Substrate
Plate 3 can be made of aluminum material or copper material.
In the present embodiment, the back side of metal substrate 3 is fitted on the inner surface of plastic lamp housing 1.As a preference, golden
Belong to substrate 3 to be fitted on the inner surface of 1 rear wall of plastic lamp housing, metal substrate 3 is bolted connection in plastic lamp housing 1
Heat conduction silicone is equipped on rear wall, between metal substrate 3 and the inner surface of plastic lamp housing 1 to reduce thermal contact resistance.
In the present embodiment, the front of metal substrate 3 is equipped with the positive support platform 4, LED for protruding from metal substrate 3
Chip 5 is installed in support platform 4.The heat of LED chip 5 can be quickly transferred in metal substrate 3 through support platform 4.
In the present embodiment, the inner surface of plastic lamp housing 1 is equipped with first mounting groove 10 corresponding with heat pipe 6, metal
The back side of substrate 3 is equipped with second mounting groove 13 corresponding with heat pipe 6, and the first mounting groove 10 and the second mounting groove 13 are combined into and heat
The chimeric installation cavity of 6 phase of pipe, a part of outer surface of heat pipe 6 is mutually chimeric with the first mounting groove 10, another part appearance of heat pipe 6
Face is mutually chimeric with the second mounting groove 13.Further, the inner surface of plastic lamp housing 1 is equipped with boss 9, and the back side of metal substrate 3 is set
There is the groove 12 mutually chimeric with boss 9, the first mounting groove 10 is arranged on boss 9, and the second mounting groove 13 is arranged in groove 12,
Boss 9 and groove 12, which is arranged, can increase the contact area of plastic lamp housing 1 and metal substrate 3 and promote the stability of connection.
In the specific implementation, it is bonded between heat pipe 6 and plastic lamp housing 1 by heat conductive silica gel, is adopted between heat pipe 6 and metal substrate 3
It is attached with soldering.As a preference, the circular cross-section of heat pipe 6, the section and the second mounting groove of the first mounting groove 10
13 section is semicircle.
In the present embodiment, heat pipe 6 is totally enclosed vacuum copper pipe.
In the present embodiment, the outer surface of plastic lamp housing 1 is equipped with the micro-structure for increasing heat radiation area.Micro-structure can
To be lines, protrusion or groove on the outer surface for be arranged in plastic lamp housing 1, the shape of micro-structure, which can according to need, to be set
It is fixed.
In the present embodiment, plastic lamp housing 1 is equipped with multiple pairs of recirculation holes 11, multiple pairs of recirculation holes 11 and plastic lamp housing 1
External environment formed convection current the heat inside automobile lamp is dispersed into external environment, intake in order to prevent, can be right
Ventilative waterproof case is provided on recirculation hole 11.
In the present embodiment, radiation protective layer is covered on the outer surface of plastic lamp housing 1, radiation protective layer can be by radiation proof paint
It constitutes, radiation protective layer is used to reduce the absorption of heat, can reduce the hot environments such as automobile machine gun engine and dissipate to automobile lamp
The influence of hot property.
In the present embodiment, Transparent lamp shade 2 is bonded on plastic lamp housing 1 by hot melt adhesive, in Transparent lamp shade 2 and plastic lantern
Lens module 7 corresponding with LED chip 5 and case ring 8 are additionally provided in the cavity that shell 1 is surrounded.
In a specific embodiment, multiple groups heat pipe heat is equipped between metal substrate 3 and the inner surface of plastic lamp housing 1,
Every group of heat pipe heat includes more heat pipes 6.The inner surface of plastic lamp housing 1 is equipped with pacifies with more heat pipes 6 one-to-one first
The back side of tankage 10, metal substrate 3 is equipped with and more one-to-one second mounting grooves 13 of heat pipe 6.Heat pipe 6 can be directly-heated pipe
Or annular heat pipe or U-shaped heat pipe or bending heat pipe.
Heat can be efficiently dispersed into environment by plastics radiation coefficient with higher, and be had more than metal
Low weight and higher processing efficiency.But plastics have lower thermal conductivity compared to metal, heat pipe 6 is with higher to lead
Heat can quickly be transferred in plastic lamp housing 1 and distribute by the thermal efficiency.Therefore heat pipe 6 and metal substrate 3 are utilized
The radiator structure that the rapid cooling of quick conductive and the plastic lamp housing 1 with micro-structure is combined can quickly dissipate heat
It is dealt into external environment, reduces the temperature of LED chip 5, extend the service life of automobile lamp, reduce the possibility that automobile lamp hazes
Property.
Using above-mentioned automobile lamp, when automobile lamp is just lighted, heat can be quickly thermally conductive by metal substrate 3
Performance distributes heat to lamp interior, avoids 5 temperature of LED chip excessively high.In automobile lamp the operation is stable, can use
The quick conductive of metal substrate 3 and heat pipe 6 transfers heat on plastic lamp housing 1, then utilizes the plastic lantern for having micro-structure
Shell 1 quickly radiates, and is effectively quickly dispersed into heat in environment, to reduce inside LED chip 5 and automobile lamp
Temperature.It improves the service life of automobile lamp and reduces the risk that automobile lamp hazes.And metal substrate 3 and heat pipe 6 and modeling
The effective combination for expecting lamp housing 1, can reduce the weight and size of entire automobile lamp.
Claims (10)
1. a kind of automobile lamp, it is characterised in that: including plastic lamp housing (1) and be mounted on saturating on front side of the plastic lamp housing (1)
Bright lamp cover (2) is fixedly connected with metal substrate (3) on the inner surface of the plastic lamp housing (1), pacifies on the metal substrate (3)
At least one is equipped with equipped with LED chip (5), between the metal substrate (3) and the inner surface of the plastic lamp housing (1) to be used for
The heat pipe (6) to conduct heat between the metal substrate (3) and the plastic lamp housing (1).
2. automobile lamp according to claim 1, it is characterised in that: the back side of the metal substrate (3) is fitted in described
On the inner surface of plastic lamp housing (1).
3. automobile lamp according to claim 1, it is characterised in that: the front of the metal substrate (3) is equipped with and protrudes from
The positive support platform (4) of the metal substrate (3), the LED chip (5) are installed on the support platform (4).
4. automobile lamp according to claim 1, it is characterised in that: the inner surface of the plastic lamp housing (1) be equipped with
Corresponding first mounting groove (10) of the heat pipe (6), the back side of the metal substrate (3) are equipped with opposite with the heat pipe (6)
The second mounting groove (13) answered, first mounting groove (10) and second mounting groove (13) are combined into and the heat pipe (6) phase
Chimeric installation cavity.
5. automobile lamp according to claim 4, it is characterised in that: the inner surface of the plastic lamp housing (1) is equipped with convex
The back side of platform (9), the metal substrate (3) is equipped with the groove (12) mutually chimeric with the boss (9), first mounting groove
(10) it is arranged on the boss (9), the second mounting groove (13) setting is in the groove (12).
6. automobile lamp according to claim 1, it is characterised in that: the heat pipe (6) is totally enclosed vacuum copper pipe.
7. automobile lamp according to claim 1, it is characterised in that: the outer surface of the plastic lamp housing (1), which is equipped with, to be used
In the micro-structure of increasing heat radiation area.
8. automobile lamp according to claim 1, it is characterised in that: the plastic lamp housing (1) is equipped with multiple pairs of circulations
Hole (11).
9. automobile lamp according to claim 1, it is characterised in that: be covered on the outer surface of the plastic lamp housing (1)
Radiation protective layer.
10. automobile lamp according to claim 1, it is characterised in that: the metal substrate (3) and the plastic lamp housing
(1) multiple groups heat pipe heat is equipped between inner surface, heat pipe heat described in every group includes the more heat pipes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589668.7A CN110375267A (en) | 2019-07-02 | 2019-07-02 | A kind of automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589668.7A CN110375267A (en) | 2019-07-02 | 2019-07-02 | A kind of automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110375267A true CN110375267A (en) | 2019-10-25 |
Family
ID=68251732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910589668.7A Pending CN110375267A (en) | 2019-07-02 | 2019-07-02 | A kind of automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110375267A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396829A (en) * | 2020-04-28 | 2020-07-10 | 一汽奔腾轿车有限公司 | Heat radiator for car optical system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070025105A1 (en) * | 2005-07-28 | 2007-02-01 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
| JP2009021135A (en) * | 2007-07-12 | 2009-01-29 | Stanley Electric Co Ltd | Vehicle headlight |
| CN101868671A (en) * | 2007-11-19 | 2010-10-20 | 奥斯兰姆有限公司 | LED headlight |
| JP2014075209A (en) * | 2012-10-03 | 2014-04-24 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| CN207350205U (en) * | 2017-05-26 | 2018-05-11 | 中山市华控光电热能科技有限公司 | A kind of air-cooled train headlamp based on phase transformation hot pipe technique |
| CN108626705A (en) * | 2018-07-17 | 2018-10-09 | 安徽建筑大学 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
-
2019
- 2019-07-02 CN CN201910589668.7A patent/CN110375267A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070025105A1 (en) * | 2005-07-28 | 2007-02-01 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
| JP2009021135A (en) * | 2007-07-12 | 2009-01-29 | Stanley Electric Co Ltd | Vehicle headlight |
| CN101868671A (en) * | 2007-11-19 | 2010-10-20 | 奥斯兰姆有限公司 | LED headlight |
| JP2014075209A (en) * | 2012-10-03 | 2014-04-24 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| CN207350205U (en) * | 2017-05-26 | 2018-05-11 | 中山市华控光电热能科技有限公司 | A kind of air-cooled train headlamp based on phase transformation hot pipe technique |
| CN108626705A (en) * | 2018-07-17 | 2018-10-09 | 安徽建筑大学 | A kind of pulsating heat pipe lighting electronic cooler based on interfacial effect |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111396829A (en) * | 2020-04-28 | 2020-07-10 | 一汽奔腾轿车有限公司 | Heat radiator for car optical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |