WO2016015428A1 - 散热器、背光模组及显示模组 - Google Patents

散热器、背光模组及显示模组 Download PDF

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Publication number
WO2016015428A1
WO2016015428A1 PCT/CN2014/093629 CN2014093629W WO2016015428A1 WO 2016015428 A1 WO2016015428 A1 WO 2016015428A1 CN 2014093629 W CN2014093629 W CN 2014093629W WO 2016015428 A1 WO2016015428 A1 WO 2016015428A1
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WO
WIPO (PCT)
Prior art keywords
heat
heat dissipating
mounting portion
heat sink
backlight
Prior art date
Application number
PCT/CN2014/093629
Other languages
English (en)
French (fr)
Inventor
郭东明
强科文
Original Assignee
深圳Tcl新技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Priority to EP14898370.3A priority Critical patent/EP3176503B1/en
Priority to ES14898370T priority patent/ES2767079T3/es
Priority to US15/026,972 priority patent/US9880347B2/en
Priority to PL14898370T priority patent/PL3176503T3/pl
Publication of WO2016015428A1 publication Critical patent/WO2016015428A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • 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
    • 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
    • F21V29/56—Cooling arrangements using liquid coolants
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • 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 heat dissipation devices, and in particular, to a heat sink, a backlight module, and a display module.
  • the single short-side backlight module reduces the number of LED lamps and reduces the number of heat sinks, thereby reducing the backlight into a module, and avoiding the double-short-sided backlight module because The deformation of the light guide plate causes a problem of light leakage of the liquid crystal glass, so the single short side backlight scheme is widely used in television design.
  • the power of the single LED lamp needs to be increased to meet the brightness requirement of the whole machine, which makes the power of the single LED lamp too large, the heat dissipation is difficult, the temperature is high, and the temperature is lowered. LED life.
  • the common short-side backlight module heats up by sticking the LED light bar to the wide and thick profile heat sink, and then fixing it on the back plate. The thicker the heat sink causes the thickness of the TV to become larger, which affects the appearance and is not conducive to thin type. Chemical.
  • the cost of the heat sink is generally high, and the heat is limited to the root of the heat sink, the heat dissipation is not smooth, and the front frame of the display module is easily heated, and the front frame is easily burned, which poses a safety hazard.
  • the main object of the present invention is to solve the technical problem that the heat dissipation effect of the conventional heat sink is not good.
  • the present invention provides a heat sink including a mounting portion for mounting a heat source, and a heat radiating portion that connects the mounting portion for absorbing heat transferred by the mounting portion, the heat radiating portion a plurality of heat dissipating tubes are disposed therein, wherein the heat dissipating tube is filled with liquid, and the liquid in the heat dissipating tube absorbs heat at the end of the heat dissipating portion near the mounting portion, and then vaporizes, and in the heat dissipating tube The inside of the road is moved from an end of the heat dissipating portion close to the mounting portion toward an end of the heat dissipating portion away from the mounting portion.
  • the heat dissipation pipeline includes a main line unit disposed at one end of the heat dissipating portion near the mounting portion, a plurality of sub-line units communicating with the main line unit, and communicating with the sub-line unit and located at the The heat dissipating portion is away from the liquid injection line at one end of the mounting portion.
  • a plurality of said sub-line units are spaced apart.
  • each of the sub-pipe units has a honeycomb shape.
  • the present invention further provides a backlight module including a body and a heat sink mounted in the body, the heat sink including a mounting portion for mounting a heat source, and a heat dissipating portion for absorbing the heat transferred by the mounting portion, wherein the heat dissipating portion is provided with a plurality of heat dissipating pipes, wherein the heat dissipating pipe is filled with liquid, and the liquid in the heat dissipating pipe is The heat dissipating portion is heated and then vaporized by the end of the mounting portion, and is moved in the heat dissipating pipe by an end of the heat dissipating portion close to the mounting portion toward an end of the heat dissipating portion away from the mounting portion. .
  • the body comprises a backboard, a backlight mounted in the backboard, and a light guide plate mounted in the backboard, the heat sink is mounted on the backboard, and the backlight is installed On the heat sink.
  • the backlight is attached to the heat sink by a heat dissipation adhesive.
  • the backlight is a linear LED strip
  • the LED strip includes a PCB board and a plurality of LED lamps mounted and electrically connected to the PCB board, and the PCB board is attached to the board by a heat sink adhesive On the radiator.
  • the backlight module further includes a plastic frame mounted on the backboard.
  • the present invention further provides a display module, the display module includes a backlight module, a display panel mounted on the backlight module, and a front frame mounted on the display panel
  • the backlight module includes a body, and a heat sink mounted in the body, the heat sink includes a mounting portion for mounting a heat source, and the mounting portion is coupled to absorb heat transferred by the mounting portion.
  • a heat dissipating portion wherein the heat dissipating portion is provided with a plurality of heat dissipating pipes, wherein the heat dissipating pipe is filled with liquid, and the liquid in the heat dissipating pipe absorbs heat at the end of the heat dissipating portion near the mounting portion, and then vaporizes And moving in the heat dissipation pipe from an end of the heat dissipation portion close to the mounting portion toward an end of the heat dissipation portion away from the mounting portion.
  • the heat sink, the backlight module and the display module of the invention inject liquid into the heat dissipation pipeline of the radiator, the liquid absorbs heat and then vaporizes, and moves in the heat dissipation pipeline to realize heat transfer and effectively improve heat The effect is transmitted, which effectively improves the heat dissipation effect.
  • FIG. 1 is a schematic perspective view of a heat sink of the present invention
  • FIG. 2 is a schematic perspective view of a backlight module of the present invention
  • FIG. 3 is a schematic perspective view of a display module of the present invention.
  • the invention provides a heat sink.
  • FIG. 1 is a schematic perspective view of a heat sink of the present invention.
  • the heat sink includes a mounting portion 220 for mounting a heat source, and a heat dissipating portion 240 connecting the mounting portion 220 for absorbing heat transferred by the mounting portion 220.
  • the liquid in the heat dissipating pipe 260 and the heat dissipating portion 240 are close to the end of the mounting portion 220 to absorb heat, and then vaporized, and in the heat pipe.
  • the heat dissipation portion 240 moves away from the end of the mounting portion 220 toward the heat dissipating portion 240 away from the end of the mounting portion 220 to realize heat transfer.
  • the air bubbles are mixed to form an oscillating wave, and the oscillating wave moves along the heat dissipation pipe 260 and collides with the pipe wall of the heat dissipation pipe 260 in the heat dissipation pipe 260.
  • the heat is exchanged, and the oscillation is excited to form a resonance wave, which increases the heat exchange speed and accelerates the heat transfer to the distal end, thereby effectively reducing the temperature gradient of the heat sink.
  • the heat sink is formed by pressing two aluminum plates at a certain temperature.
  • the pipe pattern is designed on the surface of an aluminum plate, and the pressing material is sprayed on the surface of the aluminum plate.
  • another aluminum plate is covered, and is pressed into a whole body by using a pressing device at a certain temperature, and then inflated into a designed heat-dissipating pipe shape by high-pressure inflation, and then the heat-dissipating pipe is filled with a small amount of liquid under a certain pressure.
  • the injection port was closed, and then a bending operation was performed to obtain an "L" type heat sink.
  • the heat dissipation pipe 260 includes a main pipe unit 262 disposed at one end of the heat dissipating portion 240 near the mounting portion 220, a plurality of sub-pipe units 264 communicating with the main pipe unit 262, and the branch pipe
  • the road unit 264 is in communication and is located at a liquid injection line 266 of the heat dissipating portion 240 away from one end of the mounting portion 220.
  • the sub-line unit 264 is three, and the three sub-line units 264 are spaced apart, that is, a gap 265 is provided between the adjacent two-way line units 264, so that each sub-line unit 264 Heat is not transferred to another sub-line unit 264 adjacent thereto, thereby avoiding the problem of uneven heat dissipation.
  • each of the sub-pipe units 264 has a honeycomb shape, that is, a plurality of six-square pipes are connected to each other, which effectively increases the heat dissipation area and improves the heat transfer effect.
  • the invention also provides a backlight module.
  • FIG. 2 is a schematic perspective view of a backlight module of the present invention.
  • the backlight module includes a body and a heat sink mounted in the body, and the heat sink includes all the technical solutions in the foregoing embodiment shown in FIG.
  • the beneficial effects can be referred to the foregoing embodiments, and are not described herein.
  • the body includes a back plate 420, a backlight 440 installed in the back plate 420, and a light guide plate 460 installed in the back plate 420, the heat sink is mounted on The backlight 440 is mounted on the heat sink on the backplane 420.
  • the backlight module is a side-lit backlight module, that is, the backlight 440 is located at a side of the light guide plate 460.
  • the heat dissipation portion 240 of the heat sink is fixed to the bottom plate of the back plate 420 by screwing or the like, and the backlight 440 is mounted on the mounting portion 220 on the light incident surface side of the light guide plate 460.
  • the heat generated by the illumination of the backlight 440 is transmitted to the heat dissipation portion 240 through the mounting portion 220.
  • the liquid in the heat dissipation pipe 260 located in the heat dissipation portion 240 absorbs heat and is vaporized, and is disposed in the heat dissipation pipe 260 by the heat dissipation portion.
  • the 240 is moved toward the end of the mounting portion 220 toward the heat dissipating portion 240 away from the end of the mounting portion 220 to achieve heat transfer.
  • the air bubbles are mixed to form an oscillating wave, and the oscillating wave moves along the heat dissipation pipe 260 and collides with the pipe wall of the heat dissipation pipe 260 in the heat dissipation pipe 260.
  • the heat is exchanged, and the vibration is excited to form a resonance wave, which increases the heat exchange speed, accelerates the heat transfer to the far end, effectively reduces the temperature gradient of the heat sink, thereby effectively reducing the temperature of the backlight 440, and improving the use of the backlight 440. life.
  • the backlight 440 is fixed on the heat sink by means of adhesive bonding.
  • the backlight 440 is attached to the heat sink by a heat dissipation adhesive to further improve the heat transfer effect and reduce the backlight.
  • the temperature of source 440 is fixed on the heat sink by means of adhesive bonding.
  • the backlight 440 is a linear LED light bar
  • the LED light bar includes a PCB board and a plurality of LED lights mounted and electrically connected to the PCB board, and the PCB board is attached to the PCB through a heat dissipation adhesive.
  • the LED lamp emits light, and the light enters the light guide plate 460 from the light incident surface of the light guide plate 460, and propagates in the light guide plate 460, and finally exits from the light exit surface of the light guide plate 460 to convert the point light source.
  • the backlight module further includes a plastic frame 480 mounted on the back plate 420, and the plastic frame 480 is disposed above the back plate 420, and is provided with an opening corresponding to the light emitting surface of the light guide plate 460.
  • the display panel When assembled into a display module, the display panel is placed on the plastic frame 480, and the light guide plate 460 provides a surface light source for the display panel.
  • the invention also provides a display module.
  • FIG. 3 is a schematic perspective view of a display module of the present invention.
  • the display module includes a backlight module, a display panel 600 mounted on the backlight module, and a front frame 800 mounted on the display panel 600.
  • the backlight module includes the foregoing embodiment shown in FIG.

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

Abstract

散热器、背光模组及显示模组。散热器包括用于安装热源（440）的安装部（220）以及连接安装部（220）用于吸收安装部（220）传递的热量的散热部（240）。散热部（240）内设有数条散热管路（260），散热管路（260）内注有液体，液体在散热部（240）靠近安装部（220）的一端吸收热量后气化，并在散热管路（260）内由散热部（240）靠近安装部（220）的一端朝向散热部（240）远离安装部（220）的一端移动，实现了热量的传递，有效提高热传递效果，提升散热效果。

Description

散热器、背光模组及显示模组
技术领域
本发明涉及散热设备领域，尤其涉及一种散热器、背光模组及显示模组。
背景技术
相对于双短边背光模组，单短边背光模组由于减少了LED灯个数和减少了散热器数量，从而降低了背光成模组本，同时又避免了由于双短边背光模组因为导光板变形鼓起造成液晶玻璃漏光的问题，所以单短边背光方案大量应用于电视设计中。
由于单短边背光模组中的LED灯个数减较少，需要增加单个LED灯的功率才能满足整机的亮度要求，这就使得单个LED灯功率过大，散热困难，温度很高，降低了LED寿命。而常见的单短边背光模组散热是通过将LED灯条粘于宽大且较厚的型材散热器上，再固定于背板上，散热器较厚造成电视厚度变大，影响外观不利于薄型化。且，散热器成本一般都很高，同时热量局限于散热器根部，散热不畅，容易加热示模组的前框，触摸前框容易发生烫伤，存在安全隐患。
发明内容
本发明的主要目的在于解决现有的散热器散热效果不好的技术问题。
为实现上述目的，本发明提供一种散热器，所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
优选地，所述散热管路包括设于所述散热部靠近所述安装部一端的主管路单元、连通所述主管路单元的数个分管路单元，以及与所述分管路单元连通且位于所述散热部远离所述安装部的一端的注液管路。
优选地，数个所述分管路单元间隔设置。
优选地，每一所述分管路单元的外形呈蜂窝状。
此外，为实现上述目的，本发明还提供一种背光模组，所述背光模组包括本体，以及安装于所述本体内的散热器，所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
优选地，所述本体包括背板、安装于所述背板内的背光源，以及安装于所述背板内的导光板，所述散热器安装于所述背板上，所述背光源安装于所述散热器上。
优选地，所述背光源通过散热胶贴合于所述散热器上。
优选地，所述背光源为线性LED灯条，所述LED灯条包括PCB板及安装并电性连接于所述PCB板上的数个LED灯，所述PCB板通过散热胶贴合于所述散热器上。
优选地，所述背光模组还包括安装于所述背板上的胶框。
此外，为实现上述目的，本发明还提供一种显示模组，所述显示模组包括背光模组、安装于所述背光模组上的显示面板，以及安装于所述显示面板上的前框，所述背光模组包括本体，以及安装于所述本体内的散热器，所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
本发明的散热器、背光模组及显示模组，通过在散热器的散热管路内注入液体，液体吸收热量后气化，并在散热管路内移动，以实现热量的传递，有效提高热传递效果，进而有效提升散热效果。
附图说明
图1为本发明散热器的立体结构示意图；
图2为本发明背光模组的立体结构示意图；
图3为本发明显示模组的立体结构示意图。
本发明目的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
本发明提供一种散热器。
参照图1，图1为本发明散热器的立体结构示意图。
在一实施例中，所述散热器包括用于安装热源的安装部220，以及连接所述安装部220用于吸收所述安装部220传递的热量的散热部240，所述散热部240内设有数条散热管路260，所述散热管路260内注有液体，所述散热管路260内的液体与所述散热部240靠近所述安装部220端吸收热量后气化，并在散热管路260内由所述散热部240靠近所述安装部220端朝向所述散热部240远离所述安装部220端移动，以实现热量的传递。具体地，散热管路260中的液体吸收热量气化后，混合有气泡形成振荡波，振荡波沿着散热管路260移动，并在散热管路260内与散热管路260的管壁碰撞，交换热量，同时振荡加激，形成共振波，提高了换热速度，将热量加速向远端传递，有效降低散热器的温度梯度。
在本实施例中，所述散热器由两块铝板在一定温度下压合而成，具体地，先在一块铝板的表面上设计好管路图案，并在铝板的表面上喷涂好压合材料，再将另外一块铝板盖上，利用压合设备在一定温度下压合为一体，然后通过高压充气吹胀成设计好的散热管路形状，再将散热管路内充进一定压力的少量液体然后密闭注射口，然后进行折弯操作，制得“L”型的散热器。
具体地，所述散热管路260包括设于所述散热部240靠近所述安装部220一端的主管路单元262、连通所述主管路单元262的数个分管路单元264，以及与所述分管路单元264连通且位于所述散热部240远离所述安装部220的一端的注液管路266。在本实施例中，所述分管路单元264为三个，三个所述分管路单元264间隔设置，即相邻两分管路单元264之间设有间隙265，使得每一分管路单元264的热量不会传递到与其相邻的另一分管路单元264上，进而避免散热不均的问题的产生。
进一步地，在本实施例中，每一所述分管路单元264的外形呈蜂窝状，即由数个六方形管路相互连通组成，有效增加了散热面积，提高了热传递效果。
本发明还提供一种背光模组。
再参照图2，图2为本发明背光模组的立体结构示意图。
在一实施例中，所述背光模组包括本体，以及安装于所述本体内的散热器，所述散热器包括前述图1所示实施例中所有的技术方案，其详细结构以及所带来的有益效果均可参照前述实施例，在此不做赘述。
进一步地，在本实施例中，所述本体包括背板420、安装于所述背板420内的背光源440，以及安装于所述背板420内的导光板460，所述散热器安装于所述背板420上，所述背光源440安装于所述散热器上。
具体地，在本实施例中，所述背光模组为侧入式背光模组，即所述背光源440位于所述导光板460的侧边。所述散热器的散热部240通过螺钉锁合等方式固定于所述背板420的底板上，所述背光源440于所述导光板460的入光面侧安装于所述安装部220上。所述背光源440发光产生的热量通过安装部220传递至散热部240，位于散热部240内的散热管路260内的液体吸收热量后气化，并在散热管路260内由所述散热部240靠近所述安装部220端朝向所述散热部240远离所述安装部220端移动，以实现热量的传递。具体地，散热管路260中的液体吸收热量气化后，混合有气泡形成振荡波，振荡波沿着散热管路260移动，并在散热管路260内与散热管路260的管壁碰撞，交换热量，同时振荡加激，形成共振波，提高了换热速度，将热量加速向远端传递，有效降低散热器的温度梯度，进而有效降低背光源440的温度，提升了背光源440的使用寿命。
进一步地，所述背光源440通过胶粘的方式固定于所述散热器上，优选地，所述背光源440通过散热胶贴合于所述散热器上，以进一步提升热传递效果，降低背光源440的温度。
进一步地，所述背光源440为线性LED灯条，所述LED灯条包括PCB板及安装并电性连接于所述PCB板上的数个LED灯，所述PCB板通过散热胶贴合于所述散热器上。LED灯发出光线，光线由所述导光板460的入光面进入所述导光板460，并在所述导光板460内传播，最终从所述导光板460的出光面射出，以将点光源转换为面光源。
进一步地，所述背光模组还包括安装于所述背板420上的胶框480，所述胶框480置于所述背板420上方，并对应导光板460的出光面设有开口，当组装成显示模组时，显示面板置于所述胶框480上，导光板460为显示面板提供面光源。
本发明还提供一种显示模组。
再参照图3，图3为本发明显示模组的立体结构示意图。
所述显示模组包括背光模组、安装于所述背光模组上的显示面板600，以及安装于所述显示面板600上的前框800，所述背光模组包括前述图2所示实施例中所有的技术方案，其详细结构以及所带来的有益效果均可参照前述实施例，在此不做赘述。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种散热器，其特征在于，所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
  2. 如权利要求1所述的散热器，其特征在于，所述散热管路包括设于所述散热部靠近所述安装部一端的主管路单元、连通所述主管路单元的数个分管路单元，以及与所述分管路单元连通且位于所述散热部远离所述安装部的一端的注液管路。
  3. 如权利要求2所述的散热器，其特征在于，数个所述分管路单元间隔设置。
  4. 如权利要求2所述的散热器，其特征在于，每一所述分管路单元的外形呈蜂窝状。
  5. 一种背光模组，其特征在于，所述背光模组包括本体，以及安装于所述本体内的散热器；所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
  6. 如权利要求5所述的背光模组，其特征在于，所述散热管路包括设于所述散热部靠近所述安装部一端的主管路单元、连通所述主管路单元的数个分管路单元，以及与所述分管路单元连通且位于所述散热部远离所述安装部的一端的注液管路。
  7. 如权利要求6所述的背光模组，其特征在于，数个所述分管路单元间隔设置。
  8. 如权利要求6所述的背光模组，其特征在于，每一所述分管路单元的外形呈蜂窝状。
  9. 如权利要求5所述的背光模组，其特征在于，所述本体包括背板、安装于所述背板内的背光源，以及安装于所述背板内的导光板，所述散热器安装于所述背板上，所述背光源安装于所述散热器上。
  10. 如权利要求9所述的背光模组，其特征在于，所述背光源通过散热胶贴合于所述散热器上。
  11. 如权利要求10所述的背光模组，其特征在于，所述背光源为线性LED灯条，所述LED灯条包括PCB板及安装并电性连接于所述PCB板的数个LED灯，所述PCB板通过散热胶贴合于所述散热器上。
  12. 如权利要求9所述的背光模组，其特征在于，所述背光模组还包括安装于所述背板上的胶框。
  13. 一种显示模组，其特征在于，所述显示模组包括背光模组、安装于所述背光模组上的显示面板，以及安装于所述显示面板上的前框；所述背光模组包括本体，以及安装于所述本体内的散热器；所述散热器包括用于安装热源的安装部，以及连接所述安装部用于吸收所述安装部传递的热量的散热部，所述散热部内设有数条散热管路，所述散热管路内注有液体，所述散热管路内的液体于所述散热部靠近所述安装部的一端吸收热量后气化，并在所述散热管路内由所述散热部靠近所述安装部的一端朝向所述散热部远离所述安装部的一端移动。
  14. 如权利要求13所述的显示模组，其特征在于，所述散热管路包括设于所述散热部靠近所述安装部一端的主管路单元、连通所述主管路单元的数个分管路单元，以及与所述分管路单元连通且位于所述散热部远离所述安装部的一端的注液管路。
  15. 如权利要求14所述的显示模组，其特征在于，数个所述分管路单元间隔设置。
  16. 如权利要求14所述的显示模组，其特征在于，每一所述分管路单元的外形呈蜂窝状。
  17. 如权利要求13所述的显示模组，其特征在于，所述本体包括背板、安装于所述背板内的背光源，以及安装于所述背板内的导光板，所述散热器安装于所述背板上，所述背光源安装于所述散热器上。
  18. 如权利要求17所述的显示模组，其特征在于，所述背光源通过散热胶贴合于所述散热器上。
  19. 如权利要求18所述的显示模组，其特征在于，所述背光源为线性LED灯条，所述LED灯条包括PCB板及安装并电性连接于所述PCB板的数个LED灯，所述PCB板通过散热胶贴合于所述散热器上。
  20. 如权利要求17所述的显示模组，其特征在于，所述背光模组还包括安装于所述背板上的胶框。
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