WO2017012543A1 - 一种具有相变抑制薄板式散热器的汽车大灯 - Google Patents

一种具有相变抑制薄板式散热器的汽车大灯 Download PDF

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Publication number
WO2017012543A1
WO2017012543A1 PCT/CN2016/090639 CN2016090639W WO2017012543A1 WO 2017012543 A1 WO2017012543 A1 WO 2017012543A1 CN 2016090639 W CN2016090639 W CN 2016090639W WO 2017012543 A1 WO2017012543 A1 WO 2017012543A1
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WO
WIPO (PCT)
Prior art keywords
heat sink
phase change
thin plate
change suppression
radiator
Prior art date
Application number
PCT/CN2016/090639
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English (en)
French (fr)
Inventor
李居强
卢忠亮
杨俊强
宋贤旺
Original Assignee
浙江嘉熙光电设备制造有限公司
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Publication of WO2017012543A1 publication Critical patent/WO2017012543A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • 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
    • 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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21V29/70—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
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • 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

Definitions

  • the present invention relates to the field of lighting equipment, and more particularly to an automobile headlight having a phase change suppression thin plate type heat sink.
  • an object of the present invention to provide an automotive headlight having a phase change suppression thin plate type heat sink for solving the prior art automobile headlights due to the use of incandescent lamps as a light source.
  • the present invention provides an automobile headlight having a phase change suppression thin plate type heat sink, the automobile headlight having a phase change suppression thin plate type heat sink comprising: a fan, a heat sink assembly and an LED light source;
  • the heat sink assembly includes at least one phase change suppressing thin plate heat sink;
  • the phase change suppressing thin plate heat sink includes a metal plate having a microchannel network formed by an inflation process, the micro The channel network is pre-filled with heat transfer medium;
  • the fan is located at one end of the heat sink assembly, and the LED light source is mounted on the heat sink assembly.
  • one end of the metal plate in contact with the heat source has a heat source mounting platform, and the LED light source is mounted on the heat source mounting platform.
  • the microchannel network has a single-face expansion form, a double-sided expansion form, or a double-sided flat form on the metal plate.
  • vent holes or fins are provided at the gaps of the microchannels in the metal plate.
  • the phase change suppressing thin plate heat sink includes a first portion and a second portion, the first portion including the first end face and the second portion End face
  • the first portion is a metal plate bent in a predetermined shape in a longitudinal direction, and a width direction of the metal plate is perpendicular to the first end surface and the second end surface;
  • the second portion is perpendicularly connected to the second end surface
  • the fan is fixed on the first end surface, and an air outlet of the fan faces the first end surface.
  • the predetermined shape in which the metal plate forming the first portion is bent includes two semicircular portions having opposite openings and a joint a straight portion of the two semicircular portions; the second portion is rectangular in shape, and one end of the second portion is connected to the straight portion.
  • the automobile headlight having a phase change suppressing thin plate type heat sink further includes a mounting plate, and the mounting plate is fixed to the first In one end surface, the fan is adapted to be fixedly mounted on the first end surface.
  • the heat sink assembly further includes a metal heat sink, a surface of the metal heat sink being attached to the second portion On the surface, the other surface is provided with a mounting plane adapted to mount the LED light source.
  • the metal heat sink is an aluminum heat sink.
  • the number of the metal heat sinks is two, respectively, which are respectively placed on opposite surfaces of the second portion.
  • the automobile headlight having the phase change suppressing thin plate type heat sink of the present invention has the following advantageous effects:
  • the LED light source is used to replace the traditional incandescent light bulb, which effectively improves the light efficiency of the automobile headlight with the phase change suppression thin plate type heat sink;
  • the phase change suppression thin plate heat sink is used to replace the aluminum heat sink in the prior art, and the surface temperature of the heat sink is uniform and the air is uniform due to the phase change inhibiting the rapid heat conduction characteristics of the thin plate heat sink.
  • the temperature difference between the two is large, so the heat dissipation is multiplied compared with the conventional aluminum heat sink.
  • the phase change suppression thin plate heat sink can quickly transfer the heat generated by the LED light source to the far end, and force air convection through the fan to accelerate The exchange of heat and air solves the problem of the glare of the car's headlights and improves the energy efficiency ratio of the car headlights;
  • the metal plate in the phase change suppression thin plate heat sink is bent into a predetermined shape in the longitudinal direction, and the air outlet of the fan faces the end surface perpendicular to the width direction of the metal plate, so that the heat dissipation surface is consistent with the wind direction, and is forced
  • the convection wind resistance is small, which effectively improves the heat dissipation efficiency.
  • FIG. 1 is a schematic exploded view showing an automobile headlight having a phase change suppression thin plate type heat sink according to the present invention.
  • FIG. 2 is a schematic view showing the three-dimensional structure of an automobile headlight having a phase change suppression thin plate type heat sink according to the present invention.
  • Fig. 3 is a side view showing a headlight of a vehicle having a phase change suppressing thin plate type heat sink of the present invention.
  • Figure 4 is a right side view of Figure 3.
  • Figure 5 is a top view of Figure 3.
  • FIG. 1 to FIG. 5 it should be noted that the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention in a schematic manner, although only the components related to the present invention are shown in the drawings instead of actually The number, shape and size of the components in the implementation, the actual implementation of each component type, number and proportion can be a random change, and its component layout can be more complicated.
  • the present invention provides an automobile headlight having a phase change suppression thin plate type heat sink, wherein the automobile headlight having a phase change suppression thin plate type heat sink includes: a fan 1, a heat sink assembly 2, and LED light source 3;
  • the heat sink assembly 2 includes at least one phase change suppression thin plate heat sink 21; the phase change suppression thin plate heat sink 21 includes a metal plate with a microchannel network formed by an inflation process.
  • the microchannel system is prefilled with heat transfer medium;
  • the fan 1 is located at one end of the heat sink assembly 2, and the LED light source 3 is mounted on the heat sink assembly 2.
  • the LED light source 3 is used to replace the traditional incandescent light bulb, thereby effectively improving the light efficiency of the automobile headlight having the phase change suppressing thin plate type heat sink; and the phase change suppressing thin plate type heat sink 21 is used to replace the prior art.
  • the aluminum heat sink has the characteristics of rapid heat conduction of the thin plate type heat sink 21 due to the phase change, the surface temperature of the heat sink is uniform, and the temperature difference with the air is large, so the heat dissipation amount is compared with the conventional aluminum heat sink.
  • the phase change suppression thin plate heat sink 21 can quickly transfer the heat generated by the LED light source 3 to the distal end, and force the air convection through the fan 1 to accelerate the exchange of heat and air, thereby solving the problem of the automobile.
  • the problem of large lighting has improved the energy efficiency ratio of car headlights.
  • one end of the metal plate in contact with the heat source has a heat source mounting platform on which the LED light source 3 is mounted.
  • the microchannel network has a single-face expansion configuration, a double-sided expansion configuration, or a double-sided flat configuration on the metal plate.
  • vent holes or fins are provided at the gap of the microchannel network on the metal plate.
  • phase change suppression thin plate heat sink 21 can be referred to our patent "Integrated thin plate type high efficiency heat transfer - heat sink device" (201320089390.5), which will not be described here.
  • the phase change suppression thin plate heat sink 21 includes a first portion 211 and a second portion 212, the first portion 211 including a first end surface 2111 and a second end surface (not shown), the second end surface being An opposite surface of the first end surface 2111;
  • the first portion 211 is a metal plate bent in a predetermined shape in a longitudinal direction, and a width direction of the metal plate is opposite to the first end surface 2111 and the second end surface
  • the second portion 212 is perpendicularly connected to the second end surface; the fan 1 is fixed to the first end surface 2111, and the air outlet of the fan 1 faces the first end surface 2111.
  • the metal plate in the phase change suppression thin plate heat sink 21 is bent into a predetermined shape in the longitudinal direction, and the air outlet of the fan 1 faces the first end surface 2111 perpendicular to the width direction of the metal plate Therefore, the heat dissipation surface of the phase change suppression thin plate heat sink 21 is consistent with the wind direction of the fan 1, so that the forced convection wind resistance is small, and the heat dissipation efficiency of the phase change suppression thin plate heat sink 21 can be effectively improved.
  • the predetermined shape in which the metal plate forming the first portion 211 is bent may be designed according to actual needs; preferably, as shown in FIG. 1, in the embodiment, the first portion 211 is formed.
  • the predetermined shape into which the metal plate is bent includes two semicircular portions opposite to each other and a straight portion connecting the two semicircular portions; the second portion 212 is rectangular in shape, and one end of the second portion 212 is The straight portions are connected. 1 is only an example of a predetermined shape in which the metal plate forming the first portion 211 is bent, and is not limited thereto, for example, a predetermined shape in which the metal plate forming the first portion 211 is bent.
  • It may also be composed of a semi-square opposite to the two openings and a straight line connecting the two semi-squares, or may be composed of a semi-ellipse opposite to the two openings and a straight line connecting the two semi-ellipses. Wait.
  • the two ends of the metal plate may be connected to the surface of the metal plate to form a closed shape structure, or may be combined with the metal.
  • the surface of the plate has a certain gap, as shown in FIG. 1; preferably, in this embodiment, both ends of the metal plate have a certain gap with the surface of the metal plate.
  • the automobile headlight having a phase change suppression thin plate type heat sink further includes a mounting plate 4, one end of the mounting plate 4 is fixed in the first end surface 2111, and the mounting surface of the mounting plate 4 is The first end faces 2111 are parallel, and the mounting surface of the mounting plate 4 is provided with a mounting hole adapted to mount and fix the fan 1 on the first end surface 2111.
  • the number of the mounting plates 4 can be set according to actual needs, preferably, the actual In the embodiment, the number of the mounting plates 4 is four, which are respectively correspondingly mounted on the semicircular portions of the two openings which are formed by bending the metal plate forming the first portion 211.
  • the fan 1 is provided with a mounting hole corresponding to a mounting hole on a mounting surface of the mounting board 4, and the fan 1 is fixed to the mounting board 4 by a first small heading machine nail 5.
  • the model of the first small head nail 5 can be selected according to actual needs.
  • the first small head nail 5 is a PT3X14 small head nail.
  • the means for fixing the fan 1 to the mounting plate 4 is not limited to the first small head nail 5, and any device that can achieve the above effects can be applied thereto.
  • the heat sink assembly 2 further includes a metal heat sink 22 having a surface attached to the surface of the second portion 212 and the other surface (ie, attached to the first The surface opposite the surface of the surface of the two portions 212 is provided with a mounting plane 221 adapted to mount the LED light source 3. That is, if the automobile headlight having the phase change suppression thin plate type heat sink includes the metal heat sink 22, the LED light source 3 is not mounted on the phase change suppression thin plate type heat sink 21, but is mounted on the The metal heat sink 22 is formed by the phase change suppression thin plate heat sink 21 in a single-face expansion form, a double-sided expansion form or a double-sided flat form, and in particular, the phase change suppression thin plate type heat sink 21 is double-sided. In the expanded form, the surface of the phase change suppressing thin plate heat sink 21 is not flat, and the LED light source 3 cannot be attached to the surface.
  • the number of the mounting planes 221 provided on the surface of each of the metal heat sinks 22 may be designed according to actual needs, and FIG. 1 is provided with one of the mounting planes on the surface of each of the metal heat sinks 22. In another embodiment, in the other embodiment, one, two or more of the mounting planes 221 are also disposed on the surface of each of the metal heat sinks 22.
  • the number of LED light sources 3 coincides with the number of mounting planes 221, ie one of the LED light sources 3 is mounted on each of the mounting planes 221.
  • this is merely an example, and is not limited thereto, and two or more of the LED light sources 3 are also mounted on each of the mounting planes 221.
  • the metal heat sink 22 can be any metal heat sink with better heat conduction.
  • the metal heat sink 22 is an aluminum heat sink.
  • the number of the metal heat sinks 22 is two, and the two metal heat sinks 22 are respectively placed on opposite surfaces of the second portion 212;
  • the number of the devices 22 is not limited to two, and the number of the metal heat sinks 22 can be designed according to actual needs.
  • the present invention provides an automobile headlight having a phase change suppression thin plate type heat sink, the automobile headlight having a phase change suppression thin plate type heat sink comprising: a fan, a heat sink assembly, and an LED light source;
  • the heat sink assembly includes at least a phase change suppression thin plate heat sink;
  • the phase change suppressing thin plate heat sink includes a metal plate having a microchannel network formed by an inflation process, the micro channel The heat transfer medium is pre-filled in the network; the fan is located at one end of the heat sink assembly, and the LED light source is mounted on the heat sink assembly.
  • the heat sink has a characteristic that the phase change suppresses the rapid heat conduction of the thin plate type heat sink, the surface temperature of the heat sink is uniform, and the temperature difference between the heat sink and the air is large, so the heat dissipation amount is multiplied compared with the conventional aluminum heat sink.
  • the phase change suppression thin plate type heat sink can quickly transfer the heat generated by the LED light source to the distal end, and force the air convection through the fan to accelerate the exchange of heat and air, thereby solving the problem of the big light of the automobile.
  • the energy efficiency ratio of the automobile headlight is improved; the metal plate in the phase change suppression thin plate heat sink is bent into a predetermined shape in the longitudinal direction, and the air outlet of the fan faces perpendicular to the width direction of the metal plate The end face makes the heat dissipating surface consistent with the wind direction, and the forced convection wind resistance is small, which effectively improves the heat dissipation efficiency.

Abstract

一种具有相变抑制薄板式散热器的汽车大灯，包括风扇（1）、散热器组件（2）及LED光源（3）。散热器组件至少包括一相变抑制薄板式散热器（21），风扇位于散热器组件的一端，LED光源安装于散热器组件上。采用LED光源替代传统的白炽灯泡，有效地提高了具有相变抑制薄板式散热器的汽车大灯的光效率。相变抑制薄板式散热器具有快速导热的特性，散热器表面温度均匀，且与空气间的温差较大，散热量跟常规铝制散热器相比成倍增加。采用相变抑制薄板式散热器替代现有技术中的铝制散热器，能把LED光源产生的热量快速传导至远端，并通过风扇强制空气对流，加速热量与空气交换，进而解决了汽车大灯光衰大寿命短的问题，提高了汽车大灯的能效比。

Description

一种具有相变抑制薄板式散热器的汽车大灯 技术领域
本发明涉及照明设备领域，特别是涉及一种具有相变抑制薄板式散热器的汽车大灯。
背景技术
传统的汽车大灯使用白炽灯泡作为光源，光效率非常低，不利于节能减排。同时，传统的汽车大灯中设有铝制散热器，白炽灯产生的热量通过所述铝制散热器散发出去。但传统的铝制散热器散热效率比较低，从而使得汽车大灯存在光衰大、能效比低的问题。
因此，有必要提供一种具有相变抑制薄板式散热器的汽车大灯，以改变上述缺陷。
发明内容
鉴于以上所述现有技术的缺点，本发明的目的在于提供一种具有相变抑制薄板式散热器的汽车大灯，用于解决现有技术中的汽车大灯由于使用白炽灯作为光源而存在的光效率较低的问题，以及使用传统铝制散热器散热效率比较低而导致的光衰大及能效比低的问题。
为实现上述目的及其他相关目的，本发明提供一种具有相变抑制薄板式散热器的汽车大灯，所述具有相变抑制薄板式散热器的汽车大灯包括：风扇、散热器组件及LED光源；
所述散热器组件至少包括一相变抑制薄板式散热器；所述相变抑制薄板式散热器包括金属板，所述金属板内带有采用吹胀工艺形成的微槽道网络，所述微槽道网络内已预先灌充了传热工质；
所述风扇位于所述散热器组件的一端，所述LED光源安装于所述散热器组件上。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述金属板与热源接触的一端有热源安装平台，所述LED光源安装于所述热源安装平台上。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述 微槽道网络在所述金属板上呈单面胀形态、双面胀形态或双面平形态。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述金属板上微槽道网络间隙处设置有通风孔或翅片。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述相变抑制薄板式散热器包括第一部分及第二部分，所述第一部分包括第一端面及第二端面；
所述第一部分为一所述金属板沿长度方向弯折成预定形状，所述金属板的宽度方向与所述第一端面及所述第二端面相垂直；
所述第二部分垂直连接于所述第二端面；
所述风扇固定于所述第一端面上，且风扇的出风口朝向所述第一端面。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，形成所述第一部分的所述金属板弯折成的预定形状包括两个开口相对的半圆部分以及一个连接所述两个半圆部分的直线部分；所述第二部分的形状为长方形，且所述第二部分的一端与所述直线部分相连接。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述具有相变抑制薄板式散热器的汽车大灯还包括安装板，所述安装板固定于所述第一端面内，适于将所述风扇安装固定在所述第一端面上。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述散热器组件还包括金属散热器，所述金属散热器的一表面贴置于所述第二部分的表面上，另一表面上设有安装平面，适于安装所述LED光源。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述金属散热器为铝制散热器。
作为本发明的具有相变抑制薄板式散热器的汽车大灯的一种优选方案，所述金属散热器的数量为两个，分别贴置于所述第二部分相对的两个表面上。
如上所述，本发明的具有相变抑制薄板式散热器的汽车大灯，具有以下有益效果：
1.采用LED光源替代传统的白炽灯泡，有效地提高了具有相变抑制薄板式散热器的汽车大灯的光效率；
2.采用相变抑制薄板式散热器替代现有技术中的铝制散热器，由于相变抑制薄板式散热器快速导热的特性，散热器表面温度均匀，且与空气 间的温差较大，因此，散热量跟常规铝制散热器相比成倍增加，相变抑制薄板式散热器能把LED光源产生的热量快速传导至远端，并通过风扇强制空气对流，加速热量与空气交换，进而解决了汽车大灯光衰大的问题，提高了汽车大灯的能效比；
3.将相变抑制薄板式散热器中的金属板沿长度方向弯折成的预定形状，且风扇的出风口朝向与所述金属板的宽度方向垂直的端面，使得散热面与风向一致，强制对流风阻较小，有效地提高了散热效率。
附图说明
图1显示为本发明的具有相变抑制薄板式散热器的汽车大灯的分解结构示意图。
图2显示为本发明的具有相变抑制薄板式散热器的汽车大灯的三维结构示意图。
图3显示为本发明的具有相变抑制薄板式散热器的汽车大灯的侧视图。
图4显示为图3的右视图。
图5显示为图3的俯视图。
元件标号说明
1      风扇
2      散热器组件
21     相变抑制薄板式散热器
211    第一部分
2111   第一端面
212    第二部分
22     金属散热器
221    安装平面
3      LED光源
4      安装板
5      第一小偏头机钉
6      第二小偏头机钉
具体实施方式
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。
请参阅图1至图5，需要说明的是，本实施例中所提供的图示仅以示意方式说明本发明的基本构想，虽图示中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。
请参阅图1至图5，本发明提供一种具有相变抑制薄板式散热器的汽车大灯，所述具有相变抑制薄板式散热器的汽车大灯包括：风扇1、散热器组件2及LED光源3；
所述散热器组件2至少包括一相变抑制薄板式散热器21；所述相变抑制薄板式散热器21包括金属板，所述金属板内带有采用吹胀工艺形成的微槽道网络，所述微槽道网络内已预先灌充了传热工质；
所述风扇1位于所述散热器组件2的一端，所述LED光源3安装于所述散热器组件2上。
采用所述LED光源3替代传统的白炽灯泡，有效地提高了所述具有相变抑制薄板式散热器的汽车大灯的光效率；采用所述相变抑制薄板式散热器21替代现有技术中的铝制散热器，由于所述相变抑制薄板式散热器21快速导热的特性，散热器表面温度均匀，且与空气间的温差较大，因此，散热量跟常规铝制散热器相比成倍增加，所述相变抑制薄板式散热器21能把所述LED光源3产生的热量快速传导至远端，并通过所述风扇1强制空气对流，加速热量与空气交换，进而解决了汽车大灯光衰大的问题，提高了汽车大灯的能效比。
作为示例，所述金属板与热源接触的一端有热源安装平台，所述LED光源3安装于所述热源安装平台上。
作为示例，所述微槽道网络在所述金属板上呈单面胀形态、双面胀形态或双面平形态。
作为示例，所述金属板上微槽道网络间隙处设置有通风孔或翅片。
作为示例，所述相变抑制薄板式散热器21的具体结构可参阅我司的专利“一体化薄板型高效传热-散热器件”(201320089390.5)，此处不再累述。
作为示例，所述相变抑制薄板式散热器21包括第一部分211及第二部分212，所述第一部分211包括第一端面2111及第二端面(未示出)，所述第二端面为所述第一端面2111的相对面；所述第一部分211为一所述金属板沿长度方向弯折成预定形状，所述金属板的宽度方向与所述第一端面2111及所述第二端面相垂直；所述第二部分212垂直连接于所述第二端面；所述风扇1固定于所述第一端面2111上，且所述风扇1的出风口朝向所述第一端面2111。将所述相变抑制薄板式散热器21中的金属板沿长度方向弯折成的预定形状，且所述风扇1的出风口朝向与所述金属板的宽度方向垂直的所述第一端面2111，使得所述相变抑制薄板式散热器21的散热面与所述风扇1的风向一致，使得强制对流风阻较小，可以有效地提高所述相变抑制薄板式散热器21的散热效率。
作为示例，形成所述第一部分211的所述金属板弯折成的预定形状可以根据实际需要进行设计；优选地，如图1所示，本实施例中，形成所述第一部分211的所述金属板弯折成的预定形状包括两个开口相对的半圆部分以及一个连接所述两个半圆部分的直线部分；所述第二部分212的形状为长方形，且所述第二部分212的一端与所述直线部分相连接。但图1仅为形成所述第一部分211的所述金属板弯折成的预定形状的一个示例，并不仅限于此，譬如，形成所述第一部分211的所述金属板弯折成的预定形状还可以由两个开口相对的半正方形以及一个连接所述两个半正方形的直线部分组成，也可以由两个开口相对的半椭圆形以及一个连接所述两个半椭圆形的直线部分组成等等。
作为示例，形成所述第一部分211的所述金属板弯折成的预定形状之后，所述金属板的两端可以与所述金属板的表面相连接形成封闭形状结构，也可以与所述金属板的表面具有一定的间隙，如图1所示；优选地，本实施例中，所述金属板的两端与所述金属板的表面具有一定的间隙。
作为示例，所述具有相变抑制薄板式散热器的汽车大灯还包括安装板4，所述安装板4一端固定于所述第一端面2111内，所述安装板4的安装面与所述第一端面2111相平行，且所述安装板4的安装面上设有安装孔，适于将所述风扇1安装固定在所述第一端面2111上。
作为示例，所述安装板4的数量可以根据实际需要进行设定，优选地，本实 施例中，所述安装板4的数量为4个，分别两两对应地安装在形成所述第一部分211的所述金属板弯折成的两个开口相对的半圆部分上。
作为示例，所述风扇1上设有与所述安装板4的安装面上的安装孔相对应的安装孔，所述风扇1通过第一小偏头机钉5固定在所述安装板4上；所述第一小偏头机钉5的型号可以根据实际需要进行选定，优选的，本实施例中，所述第一小偏头机钉5为PT3X14小偏头机钉。但将所述风扇1固定于所述安装板4上的装置并不仅限于所述第一小偏头机钉5，任何可以实现上述效果的装置均可应用于此。
作为示例，所述散热器组件2还包括金属散热器22，所述金属散热器22的一表面贴置于所述第二部分212的表面上，另一表面(即与贴置于所述第二部分212表面的表面相对的表面)上设有安装平面221，适于安装所述LED光源3。即若所述具有相变抑制薄板式散热器的汽车大灯包括所述金属散热器22，所述LED光源3并非安装在所述相变抑制薄板式散热器21上，而是安装在所述金属散热器22上，这是由于所述相变抑制薄板式散热器21呈单面胀形态、双面胀形态或双面平形态，尤其是所述相变抑制薄板式散热器21呈双面胀形态时，所述相变抑制薄板式散热器21的表面不是平面，所述LED光源3不能贴合安装在该表面上。
作为示例，每个所述金属散热器22的表面上设置的所述安装平面221的数量可以根据实际需要进行设计，图1为每个所述金属散热器22的表面上设置一个所述安装平面221的示例，在其他实施例中，每个所述金属散热器22的表面上还设置一个、两个或多个所述安装平面221。
作为示例，所述LED光源3的数量与所述安装平面221的数量一致，即每个所述安装平面221上安装一个所述LED光源3。当然，此处仅为示例，并不仅限于此，每个所述安装平面221上还安装两个或多个所述LED光源3。
作为示例，所述金属散热器22可以为任意一种热传导比较好的金属散热器，优选地，本实施例中，所述金属散热器22为铝制散热器。
作为示例，本实施例中，所述金属散热器22的数量为两个，两个所述金属散热器22分别贴置于所述第二部分212相对的两个表面上；但所述金属散热器22的数量并不仅限于两个，所述金属散热器22的数量可以根据实际需要进行设计。
综上所述，本发明提供一种具有相变抑制薄板式散热器的汽车大灯，所述具有相变抑制薄板式散热器的汽车大灯包括：风扇、散热器组件及LED光源；所述散热器组件至少包括一相变抑制薄板式散热器；所述相变抑制薄板式散热器包括金属板，所述金属板内带有采用吹胀工艺形成的微槽道网络，所述微槽道网络内已预先灌充了传热工质；所述风扇位于所述散热器组件的一端，所述LED光源安装于所述散热器组件上。采用所述LED光源替代传统的白炽灯泡，有效地提高了所述具有相变抑制薄板式散热器的汽车大灯的光效率；采用所述相变抑制薄板式散热器替代现有技术中的铝制散热器，由于所述相变抑制薄板式散热器快速导热的特性，散热器表面温度均匀，且与空气间的温差较大，因此，散热量跟常规铝制散热器相比成倍增加，所述相变抑制薄板式散热器能把所述LED光源产生的热量快速传导至远端，并通过所述风扇强制空气对流，加速热量与空气交换，进而解决了汽车大灯光衰大的问题，提高了汽车大灯的能效比；将所述相变抑制薄板式散热器中的金属板沿长度方向弯折成的预定形状，且所述风扇的出风口朝向与所述金属板的宽度方向垂直的端面，使得散热面与风向一致，强制对流风阻较小，有效地提高了散热效率。
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。

Claims (10)

  1. 一种具有相变抑制薄板式散热器的汽车大灯，其特征在于，所述具有相变抑制薄板式散热器的汽车大灯包括：风扇、散热器组件及LED光源；
    所述散热器组件至少包括一相变抑制薄板式散热器；所述相变抑制薄板式散热器包括金属板，所述金属板内带有采用吹胀工艺形成的微槽道网络，所述微槽道网络内已预先灌充了传热工质；
    所述风扇位于所述散热器组件的一端，所述LED光源安装于所述散热器组件上。
  2. 根据权利要求1所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述金属板与热源接触的一端有热源安装平台，所述LED光源安装于所述热源安装平台上。
  3. 根据权利要求1所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述微槽道网络在所述金属板上呈单面胀形态、双面胀形态或双面平形态。
  4. 根据权利要求1所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述金属板上微槽道网络间隙处设置有通风孔或翅片。
  5. 根据权利要求1所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述相变抑制薄板式散热器包括第一部分及第二部分，所述第一部分包括第一端面及第二端面；
    所述第一部分为一所述金属板沿长度方向弯折成预定形状，所述金属板的宽度方向与所述第一端面及所述第二端面相垂直；
    所述第二部分垂直连接于所述第二端面；
    所述风扇固定于所述第一端面上，且风扇的出风口朝向所述第一端面。
  6. 根据权利要求5所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：形成所述第一部分的所述金属板弯折成的预定形状包括两个开口相对的半圆 部分以及一个连接所述两个半圆部分的直线部分；所述第二部分的形状为长方形，且所述第二部分的一端与所述直线部分相连接。
  7. 根据权利要求5所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述具有相变抑制薄板式散热器的汽车大灯还包括安装板，所述安装板固定于所述第一端面内，适于将所述风扇安装固定在所述第一端面上。
  8. 根据权利要求5所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述散热器组件还包括金属散热器，所述金属散热器的一表面贴置于所述第二部分的表面上，另一表面上设有安装平面，适于安装所述LED光源。
  9. 根据权利要求8所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述金属散热器为铝制散热器。
  10. 根据权利要求8所述的具有相变抑制薄板式散热器的汽车大灯，其特征在于：所述金属散热器的数量为两个，分别贴置于所述第二部分相对的两个表面上。
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