WO2014059699A1 - 一种散热件及其制造方法、背光模组 - Google Patents

一种散热件及其制造方法、背光模组 Download PDF

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Publication number
WO2014059699A1
WO2014059699A1 PCT/CN2012/083824 CN2012083824W WO2014059699A1 WO 2014059699 A1 WO2014059699 A1 WO 2014059699A1 CN 2012083824 W CN2012083824 W CN 2012083824W WO 2014059699 A1 WO2014059699 A1 WO 2014059699A1
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WIPO (PCT)
Prior art keywords
heat sink
bottom plate
heat
manufacturing
backlight module
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Ceased
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PCT/CN2012/083824
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English (en)
French (fr)
Inventor
黄冲
萧宇均
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/699,701 priority Critical patent/US8985800B2/en
Publication of WO2014059699A1 publication Critical patent/WO2014059699A1/zh
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a heat dissipating member, a method of manufacturing the same, and a backlight module. Background technique
  • the liquid crystal display device includes a display module, and the display module needs to use a backlight to provide a light source for displaying images.
  • the existing backlights are mainly CCFL (Cold Cathode Fluorescent Lamp) and LED (Light Emitting). Diode, LED). At present, LED is a new type of light source. Due to its small size and energy saving, it is easy to realize the thin design of the backlight module, and it has gradually become the mainstream backlight.
  • FIG. 7 it is a structural schematic diagram of aluminum extrusion on a direct-type backlight module for an existing application, wherein the aluminum extrusion 9 has a rectangular shape as a whole, and is mounted on the opposite side of the backlight light-incident backlight module. On the side.
  • the inventors have found that when the backlight of the existing backlight module is in operation, the heat distribution on both sides is not uniform. The heat of the LED is mainly concentrated in the upper middle end of the backlight module, but the existing heat sink cannot meet this requirement.
  • the technical problem to be solved by the present invention is to provide a heat dissipating member, a manufacturing method thereof, and a backlight module, which can maintain optimal heat dissipation performance and minimize the use of materials, which is advantageous for cost control.
  • a technical solution adopted by the present invention is: Providing a method for manufacturing a heat dissipating member, comprising the following steps:
  • a heat sink body having a bottom plate and at least two baffles, the baffle being bent from either side of the bottom plate toward either side surface of the bottom plate;
  • the heat sink is formed by cutting from the bottom plate of the heat sink body, and the heat sink comprises at least two heat sinks of the same shape or shape.
  • the step of cutting the heat sink body into a heat sink satisfies the following condition:
  • the bottom plate portion of the heat sink formed by cutting is stepped.
  • the baffle is bent from the two sides of the bottom plate toward the same side surface of the bottom plate.
  • the step of cutting the heat sink body into a heat sink comprises:
  • Stamping and cutting the bottom plate divides the heat sink body into two heat sink members of the same shape.
  • the heat sink body is obtained by an extrusion molding process.
  • the heat sink body has a square shape as a whole.
  • the heat sink body is aluminum extruded.
  • the heat sink is extruded by aluminum.
  • a heat dissipating member obtained by the above manufacturing method comprising a bottom plate and a baffle plated from one side of the bottom plate,
  • the bottom plate includes a top edge and a bottom edge respectively at the two ends thereof, and the length of the top edge is greater than the length of the bottom edge.
  • the bottom plate of the heat dissipating member has a ladder shape.
  • the bottom plate has a trapezoidal shape
  • the baffle is disposed on one side of the right angle side of the right angle trapezoid.
  • the heat dissipating member is obtained by cutting.
  • the heat sink is extruded by aluminum.
  • a backlight module including an LED backlight, wherein the LED backlight includes at least a heat sink, wherein the heat sink includes a bottom plate and a self-installation a baffle provided on one side of the bottom plate, the bottom plate including respectively a top edge and a bottom edge of the two ends, the length of the top edge is greater than the length of the bottom edge; the end portion of the heat sink that is disposed on the top edge is disposed at a side where the LED backlight generates relatively concentrated heat unit.
  • the bottom plate of the heat dissipating member has a ladder shape.
  • the bottom plate has a trapezoidal shape
  • the baffle is disposed on one side of the right angle side of the right angle trapezoid.
  • the heat dissipating member is obtained by cutting.
  • thermoelectric heat sink is aluminum extruded
  • the heat dissipating member, the manufacturing method thereof and the backlight module provided by the invention have the following beneficial effects: Since a heat dissipating body can cut at least two heat dissipating members having the same shape or shape symmetry, not only the same specification heat dissipating aluminum extrusion can be added The yield is increased, and the preparation efficiency is improved, and a substantially ladder-shaped heat sink can be prepared. The overall trapezoidal heat sink can be matched with the shape of the backlight module backlight during the working heat concentration area. On the basis of maintaining optimal heat dissipation performance, the material usage can be saved to the utmost; and cost control is facilitated.
  • FIG. 1 is a view showing the structure of a heat dissipating body which is processed by the first embodiment of the method for manufacturing a heat dissipating member of the present invention.
  • Fig. 2 is a cross-sectional structural view showing the heat dissipating body of the first embodiment of the method for manufacturing a heat dissipating member of the present invention.
  • Fig. 3 is a structural schematic view showing a cutting portion of a heat dissipating member which is processed by the first embodiment of the method for manufacturing a heat dissipating member of the present invention.
  • FIG. 4 is a schematic view showing the structure of a heat dissipating member manufactured by the first embodiment of the method for manufacturing a heat dissipating member of the present invention.
  • Fig. 5 is a cross-sectional structural view showing a heat dissipating body of the second embodiment of the method for manufacturing a heat dissipating member of the present invention.
  • FIG. 6 is an assembled rear view of a backlight module according to an embodiment of the present invention.
  • FIG. 7 is a schematic view showing the structure of aluminum extrusion on a direct-type backlight module in the prior art. detailed description
  • FIG. 1 to FIG. 3 is a first embodiment of a method for manufacturing a heat sink according to the present invention.
  • the manufacturing method of the heat sink of this embodiment includes the following steps:
  • Step 1 Process the heat sink body having a bottom plate and at least two baffles.
  • the structure of the heat sink body obtained by the processing in the present embodiment is shown.
  • the heat sink body is integrally extruded in a square shape, and the aluminum extrusion comprises a bottom plate 1 and two baffles 2, and the two baffles 2 are respectively directed from both side ends of the bottom plate 1 (left and right sides as shown)
  • a bent plate-like structure is provided on the same side of the bottom plate 1.
  • the heat sink body When implemented, the heat sink body can be made by an extrusion process, which helps control the quality of the finished product and product.
  • FIG. 2 a schematic cross-sectional structure of the heat sink body obtained by the processing in the present embodiment is shown.
  • the two baffles 2 have the same size specifications and are arranged perpendicular to the same side of the bottom plate 1; the bottom plate 1 has a right-angled trapezoid, and the baffle 2 is disposed on the right side of the right-angled trapezoid.
  • the direction in which the two baffles 2 are bent and the square shape of the heat dissipating body as a whole can determine the shape of the heat dissipating member obtained in the following cutting step, and can prepare for the mass production of the heat dissipating aluminum extrusion of the same specification.
  • Step 2 cutting the heat sink body into a heat sink, and the heat sink comprises at least two heat sinks having the same shape.
  • FIG. 3 it is a schematic structural view of a cutting portion in the present embodiment.
  • the end portion of the aluminum extruded base 1 may be press-cut to the other end of the bottom plate 1.
  • the cutting position is not limited.
  • the step of cutting the heat sink body into the heat sink requires the following conditions:
  • It can punch and cut two pieces of aluminum extrusion with the same shape. Its function is: It can increase the output of the same specification of dissipative aluminum extrusion, improve the preparation efficiency and reduce the production cost.
  • the entire ladder-shaped heat sink can be cut. Because the trapezoidal shape of aluminum extrusion is more in line with the shape of the heat distribution of the backlight module backlight during operation, it can be achieved through reasonable assembly. The optimal heat dissipation effect saves material costs.
  • FIG. 4 it is a schematic structural view of the aluminum extrusion obtained by the above manufacturing method of the present invention.
  • the aluminum extrusion of this embodiment comprises: a bottom plate 11 (half the surface area of the heat sink body base plate 1) and a baffle 2 which is bent from one side of the bottom plate 11.
  • the bottom plate 11 includes a top edge 11a and a bottom edge l ib at both ends thereof, and the heat-dissipating aluminum is integrally extruded in a ladder shape.
  • the top edge 11a of the overall ladder-shaped heat sink is different from the length of the bottom edge l ib in that it has a different surface area at both ends of the aluminum extrusion. That is, the surface area of the end side of the aluminum extruding edge 11a is larger than the surface area of the side of the bottom side l ib end, and the effective heat dissipating area is gradually reduced from the top side 11a to the bottom side l ib .
  • Such a structure can be matched with the shape of the heat concentrated area when the backlight of the backlight module operates, and the use amount of the material of the bottom plate 11 can be saved to the utmost, and the cost can be reduced on the basis of maintaining the optimal heat dissipation performance.
  • the side edge 11c of the bottom plate 11 opposite to the baffle 2 is not limited to the structure having the linear side as shown.
  • the side edge 11c may be different according to the cutting method in the second step, and may also be the side edge of the curved structure, as long as the length of the top edge 11a of the cut bottom plate 11 is greater than the length of the bottom edge l ib.
  • FIG. 5 there is shown a cross-sectional structural view of a heat sink body obtained by the second embodiment of the heat sink manufacturing method of the present invention.
  • the embodiment differs from the first embodiment described above in the aluminum extruded shape processed in the first step, wherein: the two extruded baffles 2 of the aluminum are respectively disposed from opposite sides of the bottom plate 1 toward opposite sides of the bottom plate 1 Bent plate structure.
  • the two baffles 2 are of the same size and are perpendicular to the bottom plate 1.
  • the aluminum extrusion of the shape is used as the heat sink body to:
  • the aluminum extrusion of the shape is cut by the second step, and two shape-symmetrical heat dissipation members can be cut.
  • the two heat dissipating members cut out by the same heat dissipating body can be applied to the same backlight module, and the ends of the two heat dissipating members having a large heat dissipating area can be installed on the same side of the module.
  • FIG. 6 it is an assembled rear view of the backlight module of the present invention.
  • the two aluminum extrusions 11 and 12 are two shape-symmetrical heat dissipating members cut out from the same heat dissipating body, and are respectively mounted on the left and right sides of the backlight module as shown.
  • the two aluminum extrusions 11, 12 After installation, the two aluminum extrusions 11, 12 have a larger heat-dissipating surface, and the top end ends are respectively assembled on the back
  • the upper and middle ends of the optical module product are concentrated in the middle of the heat (in the case where the whole machine is facing upwards), and the area where the heat is relatively small at the lower end of the module is formed by the end of the bottom side of the aluminum to achieve the desired heat dissipation state.
  • the heat dissipating member of the present invention, the manufacturing method thereof, and the backlight module can cut at least two heat dissipating members having the same shape or shape symmetry, which can increase the output of the same size heat dissipating aluminum extrusion and improve the preparation efficiency.
  • a substantially ladder-shaped heat sink can be prepared. The shape of the heat sink can be matched with the shape of the backlight module backlight during the working heat concentration area, and the material consumption can be saved to the greatest extent while maintaining the optimal heat dissipation performance; and the cost control is facilitated.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Liquid Crystal (AREA)

Abstract

一种散热件的制造方法，包括以下步骤：加工具有底板（1）和至少两块挡板（2）的散热件本体，挡板（2）自底板（1）的两侧朝向底板（1）的任一侧表面设置弯折；从散热件本体的底板（1）上进行裁切形成散热件，散热件至少包括两块形状相同或形状对称的散热件。一种由上述制造方法制得的散热件和背光模组。该散热件及其制造方法、背光模组，具有最佳散热效能，并最大程度节省材料的使用量，利于成本控制。

Description

一种散热件及其制造方法、 背 it ^组 本申请要求于 2012 年 10 月 18 日提交中国专利局、 申请号为 201210397053.2、 发明名称为 "一种散热件及其制造方法、 背光模组" 的中 国专利申请的优先权， 上述专利的全部内容通过引用结合在本申请中。 技术领域
本发明涉及液晶显示领域， 尤其涉及一种散热件及其制造方法、 背光模 组。 背景技术
液晶显示装置包括显示模组， 显示模组为了显示图像， 都需要用到背光 来提供光源， 现有的背光源主要为 CCFL ( Cold Cathode Fluorescent Lamp, 冷阴极萤光灯管 )和 LED ( Light Emitting Diode, 发光二极管）。 目前 LED 作为较新型的光源， 由于其具有体积小、 节能等优点， 容易实现背光模组的 薄形化设计， 渐成为主流的背光源。
如图 7所示，为现有应用在直下式背光模组上铝挤的结构示意图，其中， 铝挤 9的整体呈矩状， 其被装设在背光源入光侧背光模组的两相对侧端上。 但发明人发现， 现有的背光模组的背光源在工作时， 两侧的热量分布并不均 匀。 LED的热量主要集中在背光模组的中上端，但现有散热件均不能达到该 要求。
现有的散热铝挤不但达不到最优散热的效能， 而且浪费了大量的材料， 不利于控制成本。 发明内容
本发明所要解决的技术问题在于， 提供一种散热件及其制造方法、 背光 模组， 能够保持最优散热效能， 并最大程度节省材料的使用量， 利于成本控 制。 为了解决上述技术问题， 本发明采用的一种技术方案是： 提供一种散热 件的制造方法， 包括以下步骤：
加工具有底板和至少两块挡板的散热件本体， 所述挡板自所述底板的两 侧朝向所述底板的任一侧表面设置弯折；
从所述散热件本体的底板上进行裁切形成散热件，所述散热件至少包括 两块形状相同或形状对称的散热件。
其中， 将所述散热件本体裁切成散热件的步骤满足以下条件： 裁切形成的所述散热件的底板部份呈梯状。
其中， 所述挡板自所述底板的两侧朝向所述底板的同一侧表面设置弯 折。
其中， 将所述散热件本体裁切成散热件的步骤包括：
沖压裁切所述底板将所述散热件本体分为两块形状相同的散热件的步 骤。
其中， 所述散热件本体通过挤出成型工艺制得。
其中， 所述散热件本体的整体呈方状。
其中， 所述散热件本体为铝挤。
其中， 所述散热件为铝挤。
为了解决上述技术问题， 本发明采用的另一种技术方案是： 提供一种由 上述制造方法制得的散热件， 包括底板和自所述底板的一侧边折弯设置的挡 板， 所述底板包括分别位于其两端的顶边和底边， 所述顶边的长度大于所述 底边的长度。
其中， 所述散热件的所述底板呈梯状。
其中， 所述底板呈直角梯形， 所述挡板设置在所述直角梯形的直角边一 侧。
其中， 所述散热件为经裁切制得。
其中， 所述散热件为铝挤。
为了解决上述技术问题， 本发明采用的另一种技术方案是： 提供一种背 光模组， 包括 LED背光源， 所述 LED背光源至少包括散热件， 其中， 所述 散热件包括底板和自所述底板的一侧边折弯设置的挡板， 所述底板包括分别 位于其两端的顶边和底边， 所述顶边的长度大于所述底边的长度； 所述散热件设置所述顶边的端部装设在所述 LED背光源产生热量相对 集中的端部。
其中， 所述散热件的所述底板呈梯状。
其中， 所述底板呈直角梯形， 所述挡板设置在所述直角梯形的直角边一 侧。
其中， 所述散热件为经裁切制得。
其中， 所述散热件为铝挤
本发明所提供的散热件及其制造方法、 背光模组， 具有如下有益效果： 由于一块散热件本体可以裁切出至少两块形状相同或形状对称的散热件， 不 但可以增加同一规格散热铝挤的产量， 提高制备效率， 而且能够制备出大致 呈梯状的散热件。整体呈梯形的散热件可以与背光模组背光源在工作时热量 集中区域的形状相适配， 在保持最优散热效能的基础上， 可以最大程度节省 材料的使用量； 利于成本控制。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作筒单地介绍， 显而易见地， 下面 描述中的附图仅仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明散热件制造方法的第一实施例加工制得的散热件本体的结 构示意图。
图 2是本发明散热件制造方法的第一实施例加工制得的散热件本体的截 面结构示意图。
图 3是本发明散热件制造方法的第一实施例加工制得散热件的裁切部位 的结构示意图。
图 4是本发明散热件制造方法的第一实施例制得散热件的结构示意图。 图 5是本发明散热件制造方法的第二实施例制得的散热件本体的截面结 构示意图。 图 6是本发明实施例背光模组的装配后视图。
图 7是现有应用在直下式背光模组上铝挤的结构示意图。 具体实施方式
下面参考附图对本发明的优选实施例进行描述。
请结合图 1至图 3所示， 为本发明散热件制造方法的第一实施例。 本实施例的散热件的制造方法包括以下步骤：
步骤一： 加工具有底板和至少两块挡板的散热件本体。
该步骤中， 如图 1所示， 为本实施例中加工制得的散热件本体的结构示 意图。 散热件本体为整体呈方状的铝挤， 该铝挤包括底板 1和两块挡板 2, 两块挡板 2是分别自底板 1的两侧端（如图所示的左右两侧）朝向底板 1的 同一侧面设置折弯的板状结构。
实施时， 散热件本体可以通过挤出成型工艺制得， 这有利于控制成品和 产品的品质。
如图 2所示， 为本实施例中加工制得的散热件本体的截面结构示意图。 其中， 两挡板 2的尺寸规格设置相同， 且朝向底板 1的同一侧设置垂直； 底 板 1呈直角梯形， 挡板 2设置在于直角梯形的直角边一侧。
两挡板 2弯折的方向以及散热本体整体呈方形的形状能够决定下述裁切 步骤中制得散热件的形状， 能够为大批量制备该同一规格的散热铝挤做好制 备准备。
步骤二： 将所述散热件本体裁切成散热件， 所述散热件至少包括两块形 状相同的散热件。
如图 3所示， 为本实施例中裁切部位的结构示意图。 实施时， 可以由上 述铝挤底板 1的一端部沖压裁切至底板 1另一侧的端部。裁切的位置并不限 定， 将散热件本体裁切成散热件的步骤需要满足以下条件：
能够沖压裁切出两块形状相同的铝挤。 其作用是： 可以增加同一规格散 热铝挤的产量， 提高制备效率， 降低生产成本。
进一步的， 能够裁切出整体呈梯状的散热件。 由于呈梯形形状的铝挤更 符合背光模组背光源在工作时热量分布的形状， 通过合理的装配， 能够达到 最优的散热效果， 能够节省材料成本。
如图 4所示， 为本发明通过上述制造方法制得的铝挤的结构示意图。 本实施例的铝挤包括： 底板 11 (散热件本体底板 1表面积的一半 )和自 底板 11的一侧边折弯设置的挡板 2。底板 11包括分别位于其两端的顶边 11a 和底边 l ib , 该散热铝挤的整体呈梯状。
整体呈梯状的散热件的顶边 11a与底边 l ib的长度设置不同，其作用是： 保持铝挤两端具有不同的表面积。 也就是说， 铝挤顶边 11a端侧的表面积大 于底边 l ib端侧的表面积，且有效散热面积由顶边 11a至底边 l ib逐渐缩小。 这样的结构可以与背光模组背光源工作时热量集中区域的形状相适配，在保 持最优散热效能的基础上， 可以最大程度节省底板 11材料的使用量， 降低 成本。
此外， 底板 11与挡板 2相对的侧边 11c并不限定在如图所示的呈直线 型侧边的结构。 侧边 11c可以根据上述步骤二中不同的裁切方式， 其还可以 是曲线结构的侧边，只要满足裁切出的底板 11顶边 11a的长度大于底边 l ib 的长度即可。
参见图 5 , 为由本发明散热件制造方法第二实施例制得的散热件本体的 截面结构示意图。
该实施方式与上述实施一的不同之处在于步骤一中加工出的铝挤形状， 其中： 该铝挤的两块挡板 2是分别自底板 1的两侧端朝向底板 1相对的不同 侧面设置折弯的板状结构。 两挡板 2的尺寸规格设置相同， 且均垂直于底板 1。
加工该形状的铝挤作为散热件本体的作用是： 通过步骤二裁切该形状的 铝挤， 能够裁切出两块形状对称的散热件。 这样， 由同一块散热件本体裁切 出的两块散热件就可以应用在同一块背光模组上， 并能够实现两块散热件具 有较大散热面积的端头安装在模组的同一侧。 例如，
如图 6所示， 为本发明背光模组的装配后视图。
两块铝挤 11 , 12为由同一块散热件本体裁切出的两块形状对称的散热 件， 其可分别安装在该背光模组的如图所示的左右两侧。
安装后， 两块铝挤 11 , 12具有较大散热表面的顶边端部分别装配在背 光模组产品热量较为集中的中上端 （整机朝上的情况下）， 而模组下端产生 热量相对较小的区域则通过铝挤设置底边的端部就可以达到理想的散热状 态。
实施本发明的散热件及其制造方法、 背光模组， 一块散热件本体可以裁 切出至少两块形状相同或形状对称的散热件， 不但可以增加同一规格散热铝 挤的产量， 提高制备效率， 而且能够制备出大致呈梯状的散热件。 该形状的 散热件可以与背光模组背光源在工作时热量集中区域的形状相适配，在保持 最优散热效能的基础上， 可以最大程度节省材料的使用量； 利于成本控制。
以上所揭露的仅为本发明较佳实施例而已， 当然不能以此来限定本发明 之权利范围， 因此等同变化， 仍属本发明所涵盖的范围。 以上所揭露的仅为 本发明较佳实施例而已， 当然不能以此来限定本发明之权利范围， 因此等同 变化， 仍属本发明所涵盖的范围。

Claims

权 利 要 求
1、 一种散热件的制造方法， 其中， 包括以下步骤：
加工具有底板和至少两块挡板的散热件本体，所述挡板自所述底板的两 侧朝向所述底板的任一侧表面设置弯折；
从所述散热件本体的底板上进行裁切形成散热件，所述散热件至少包括 两块形状相同或形状对称的散热件。
2、 如权利要求 1所述的散热件的制造方法， 其中， 将所述散热件本体 裁切成散热件的步骤满足以下条件：
裁切形成的所述散热件的底板部份呈梯状。
3、 如权利要求 1所述的散热件的制造方法， 其中， 所述挡板自所述底 板的两侧朝向所述底板的同一侧表面设置弯折。
4、 如权利要求 1所述的散热件的制造方法， 其中， 将所述散热件本体 裁切成散热件的步骤包括：
沖压裁切所述底板将所述散热件本体分为两块形状相同的散热件的步 骤。
5、 如权利要求 4所述的散热件的制造方法， 其中， 将所述散热件本体 裁切成散热件的步骤满足以下条件：
裁切形成的所述散热件的底板部份呈梯状。
6、 如权利要求 5所述的散热件的制造方法， 其中， 所述散热件本体通 过挤出成型工艺制得。
7、 如权利要求 5所述的散热件的制造方法， 其中， 所述散热件本体的 整体呈方状。
8、 如权利要求 3所述的散热件的制造方法， 其中， 将所述散热件本体 裁切成散热件的步骤包括：
沖压裁切所述底板将所述散热件本体分为两块形状相同的散热件的步 骤。
9、 如权利要求 1所述的散热件的制造方法， 其中， 所述散热件本体为 铝挤。
10、如权利要求 1所述的散热件的制造方法，其中，所述散热件为铝挤。
11、 一种散热件， 其中， 包括底板和自所述底板的一侧边折弯设置的挡 板， 所述底板包括分别位于其两端的顶边和底边， 所述顶边的长度大于所述 底边的长度。
12、 如权利要求 11所述的散热件， 其中， 所述散热件的所述底板呈梯 状。
13、 如权利要求 12所述的散热件， 其中， 所述底板呈直角梯形， 所述 挡板设置在所述直角梯形的直角边一侧。
14、 如权利要求 11所述的散热件， 其中， 所述散热件为经裁切制得。
15、 如权利要求 11所述的散热件， 其中， 所述散热件为铝挤。
16、 一种背光模组， 包括 LED背光源， 所述 LED背光源至少包括散热 件， 其中， 所述散热件包括底板和自所述底板的一侧边折弯设置的挡板， 所 述底板包括分别位于其两端的顶边和底边， 所述顶边的长度大于所述底边的 长度；
所述散热件设置所述顶边的端部装设在所述 LED背光源产生热量相对 集中的端部。
17、 如权利要求 16所述的背光模组， 其中， 所述散热件的所述底板呈 梯状。
18、 如权利要求 17所述的背光模组， 其中， 所述底板呈直角梯形， 所 述挡板设置在所述直角梯形的直角边一侧。
19、 如权利要求 16所述的背光模组， 其中， 所述散热件为经裁切制得。
20、 如权利要求 16所述的背光模组， 其中， 所述散热件为铝挤。
PCT/CN2012/083824 2012-10-18 2012-10-31 一种散热件及其制造方法、背光模组 Ceased WO2014059699A1 (zh)

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