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WO2018166019A1 - 散热模组及液晶显示器 - Google Patents

散热模组及液晶显示器 Download PDF

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Publication number
WO2018166019A1
WO2018166019A1 PCT/CN2017/079911 CN2017079911W WO2018166019A1 WO 2018166019 A1 WO2018166019 A1 WO 2018166019A1 CN 2017079911 W CN2017079911 W CN 2017079911W WO 2018166019 A1 WO2018166019 A1 WO 2018166019A1
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WO
WIPO (PCT)
Prior art keywords
heat dissipation
cavity
module
heat
ventilation
Prior art date
Application number
PCT/CN2017/079911
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English (en)
French (fr)
Inventor
张彦学
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US15/529,502 priority Critical patent/US10330969B2/en
Publication of WO2018166019A1 publication Critical patent/WO2018166019A1/zh
Priority to US16/403,617 priority patent/US10429686B2/en

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    • 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
    • G02F1/133308—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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/36—Airflow channels, e.g. constructional arrangements facilitating the flow of air

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a heat dissipation module and a liquid crystal display.
  • LCD Liquid Crystal Display
  • advantages such as thin body, power saving, no radiation, etc., such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or Laptop screens, etc., dominate the field of flat panel display.
  • PDA personal digital assistant
  • liquid crystal displays which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to apply a driving voltage on a Thin Film Transistor Array Substrate (TFT Array Substrate) and a Color Filter (CF) to control the rotation direction of liquid crystal molecules between the two substrates.
  • TFT Array Substrate Thin Film Transistor Array Substrate
  • CF Color Filter
  • the backlight module is divided into a side-in type backlight module and a direct-type backlight module according to different incident positions of the light source.
  • the direct-lit backlight module is provided with a light source such as a cathode fluorescent lamp (CCFL) or a light emitting diode (LED) disposed behind the liquid crystal panel to directly form a surface light source for the liquid crystal panel;
  • the backlight module has a light bar disposed on the side of the liquid crystal panel as a backlight.
  • the brightness requirements for backlight modules are also increasing.
  • the brightness of the backlight module is increased, and the heat generated by the light source of the backlight module is increased.
  • the poor heat dissipation may cause the service life of the backlight module and the liquid crystal display to decrease, which brings a new design to the heat dissipation structure. The challenge.
  • the object of the present invention is to provide a heat dissipation module with good heat dissipation performance, which can effectively dissipate heat generated by the light bar when applied to a liquid crystal display, thereby improving the service life of the liquid crystal display.
  • Another object of the present invention is to provide a liquid crystal display which has good heat dissipation performance and long service life.
  • the present invention firstly provides a heat dissipating module, comprising a hollow heat dissipating cavity, a plurality of first heat dissipating fins extending on one side of the heat dissipating cavity body and extending outside the heat dissipating cavity, and accommodating heat dissipation a plurality of ventilation pipes respectively connected to both end faces of the heat dissipation cavity in the cavity and the two ends, and a plurality of pairs of same-direction fans respectively disposed at two ends of the plurality of ventilation pipes on the two end faces of the heat dissipation cavity; both end faces of the heat dissipation cavity
  • a plurality of first ventilation holes are disposed at two ends of the plurality of ventilation pipes, and the inner cavity of the plurality of ventilation pipes communicates with the outside of the heat dissipation cavity through the corresponding first ventilation holes.
  • Each pair of co-directional fans is disposed in a corresponding first ventilation hole.
  • a plurality of ventilation pipes are arranged in parallel and evenly in the heat dissipation cavity.
  • the heat dissipation module further includes: a cooling liquid filled between the outer wall of the ventilation tube and the inner wall of the heat dissipation cavity.
  • the heat dissipation module further includes: a plurality of second heat dissipation fins extending on a side surface of the heat dissipation cavity on which the first heat dissipation fin is located, a plurality of second heat dissipation fins and a plurality of first heat dissipation fins The positions of the fins are in one-to-one correspondence; the height of the first heat dissipation fin is greater than the height of the second heat dissipation fin.
  • the present invention also provides a liquid crystal display, comprising a display module, a heat dissipation module disposed on a rear side of the display module, and a light bar mounted on a side of the heat dissipation module adjacent to the display module;
  • the heat dissipating module comprises a hollow heat dissipating cavity, a plurality of first heat dissipating fins extending on the side of the heat dissipating cavity away from the light bar and extending outside the heat dissipating cavity, and being received in the heat dissipating cavity body and respectively connected at both ends a plurality of ventilation pipes on both end faces of the heat dissipation cavity, and a plurality of pairs of co-directional fans disposed at two ends of the plurality of ventilation pipes respectively on the two end faces of the heat dissipation cavity; the two end faces of the heat dissipation cavity body correspond to the two ends of the plurality of ventilation pipes A plurality of first ventilation holes are disposed, and the inner cavity of the plurality of ventilation pipes communicates with the outside of the heat dissipation cavity via the corresponding first ventilation holes.
  • Each pair of the same direction fan is disposed in the corresponding first ventilation hole
  • a plurality of ventilation pipes are arranged in parallel and evenly in the heat dissipation cavity.
  • the heat dissipation module further includes: a cooling liquid filled between the outer wall of the ventilation tube and the inner wall of the heat dissipation cavity.
  • the heat dissipation module further includes: a plurality of second heat dissipation fins extending on a side surface of the heat dissipation cavity on which the first heat dissipation fin is located, a plurality of second heat dissipation fins and a plurality of first heat dissipation fins The positions of the fins are in one-to-one correspondence; the height of the first heat dissipation fin is greater than the height of the second heat dissipation fin
  • the liquid crystal display is further disposed on the rear side of the display module and shields the outer casing of the heat dissipation module;
  • the outer casing includes a casing, a plurality of heat dissipation holes disposed on the casing, and a plurality of second ventilation holes disposed corresponding to the plurality of pairs of co-directional fans.
  • the present invention also provides a liquid crystal display, comprising a display module, a heat dissipation module disposed on a rear side of the display module, and a light bar mounted on a side of the heat dissipation module adjacent to the display module;
  • the heat dissipation module includes a hollow heat dissipation cavity disposed on a side of the heat dissipation cavity away from the light bar a plurality of first heat dissipating fins extending outside the heat dissipating cavity on the surface, a plurality of ventilation tubes accommodated in the heat dissipating cavity body and connected to the two end faces of the heat dissipating cavity body respectively, and corresponding to the plurality of end faces on the heat dissipating cavity body a plurality of pairs of co-directional fans disposed at two ends of the ventilation pipe; a plurality of first ventilation holes are disposed at two ends of the plurality of ventilation pipes at opposite end faces of the plurality of ventilation pipes, and the inner cavity of the plurality of ventilation pipes is correspondingly first The ventilation hole is connected to the outside of the heat dissipation cavity;
  • each pair of the same direction fan is disposed in the corresponding first ventilation hole
  • a plurality of ventilation pipes are arranged in parallel and evenly in the heat dissipation cavity
  • the heat dissipation module further includes: a cooling liquid filled between the outer wall of the ventilation tube and the inner wall of the heat dissipation cavity.
  • the invention provides a heat dissipation module, wherein a plurality of ventilation pipes are arranged inside the heat dissipation cavity, and both ends of the plurality of ventilation pipes are respectively connected to both end faces of the heat dissipation cavity and the inside of the plurality of ventilation pipes
  • the cavity is connected with the outside of the heat dissipation cavity, and a plurality of pairs of the same fan are disposed at two ends of the corresponding ventilation pipe on the heat dissipation cavity, and a coolant is filled between the outer wall of the ventilation pipe and the inner wall of the heat dissipation cavity, so that the heat dissipation module When applied to a liquid crystal display, the heat generated by the light bar can be effectively dissipated to improve the service life of the liquid crystal display.
  • the liquid crystal display provided by the invention applies the above-mentioned heat dissipation module, has good heat dissipation performance and long service life.
  • FIG. 1 is a schematic perspective view of a heat dissipation module of the present invention
  • FIG. 2 is a front view of the heat dissipation module of the present invention
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 2;
  • FIG. 5 is a schematic perspective view of a liquid crystal display of the present invention.
  • Figure 6 is a side elevational view of the liquid crystal display of the present invention with the outer casing removed.
  • the present invention firstly provides a heat dissipation module 10 for dissipating heat generated by a light bar of a backlight module of a liquid crystal display.
  • the heat dissipation module 10 includes a hollow heat dissipation cavity 11 and a plurality of first heat dissipation fins 12 extending outside the heat dissipation cavity 11 on one side of the heat dissipation cavity 11 and housed in the heat dissipation cavity 11 .
  • a plurality of air ducts 13 respectively connected to the two end faces of the heat dissipating cavity 11 and two pairs of the same fan 14 disposed at opposite ends of the plurality of air ducts 13 on the opposite end faces of the heat dissipating cavity 11; the heat dissipating cavity 11
  • a plurality of first ventilation holes 111 are disposed at two ends of the plurality of ventilation pipes 13 , and the inner cavity of the plurality of ventilation pipes 13 communicates with the outside of the heat dissipation cavity 11 via the corresponding first ventilation holes 111 .
  • the heat dissipation module 10 is mounted on the other side of the heat dissipation cavity 11 opposite to the first heat dissipation fin 12 to dissipate heat generated by the light bar.
  • the heat dissipation module 10 is provided with a plurality of ventilation pipes 13 inside the heat dissipation cavity 11.
  • the two ends of the plurality of ventilation pipes 13 are respectively connected to the two end faces of the heat dissipation cavity 11 and the inner cavity of the plurality of ventilation pipes 13 and the heat dissipation cavity
  • the external communication is provided, and a plurality of pairs of the same-directional fan 14 are disposed at two ends of the corresponding plurality of ventilation tubes 13 on the heat dissipation cavity 11.
  • the same-direction fan 14 When in use, the same-direction fan 14 is opened, and one of the same-directional fans 14 delivers gas to the inner cavity of the ventilation tube 13. And the other of the same direction fan 14 discharges the gas in the inner cavity of the air duct 13 out of the heat dissipating cavity 11, forming a gas circulation path, and heats the heat generated by the light bar mounted on the heat dissipating cavity 11 to the heat dissipating cavity.
  • the heat of 11 is discharged to the outside of the heat dissipation module 10, and the plurality of first heat dissipation fins 12 are simultaneously dissipated, which can effectively dissipate the heat generated by the light bar, thereby avoiding the problem that the service life of the liquid crystal display is degraded due to excessive heat. .
  • the first venting holes 111 are circular holes, and each pair of the same-directional fan 14 is disposed in the first venting hole 111 corresponding thereto to more efficiently complete the intake and exhaust of the inner cavity of the venting pipe 13. Operation.
  • the position of the plurality of air ducts 13 in the heat dissipating cavity 11 can be specifically designed according to the heat generation condition of the light bar.
  • the plurality of air ducts 13 are arranged in parallel and evenly in the heat dissipating cavity 11 to uniformly The heat that the light bar conducts to the heat dissipation cavity 11 is dissipated.
  • the heat dissipation module 10 further includes: a cooling liquid 15 filled between the outer wall of the air duct 13 and the inner wall of the heat dissipation cavity 11 to further improve the heat conduction efficiency of the heat dissipation module 10 and improve the heat dissipation effect.
  • the plurality of first heat dissipation fins 12 are densely arranged in an array pattern.
  • the heat dissipation module 10 further includes: disposed on a side surface of the heat dissipation cavity 11 where the first heat dissipation fin 12 is located, and is disposed in the heat dissipation cavity 11
  • the plurality of second heat dissipation fins 16 and the plurality of second heat dissipation fins 16 are in one-to-one correspondence with the positions of the plurality of first heat dissipation fins 12; the height of the first heat dissipation fins 12 is greater than the second heat dissipation fins The height of 16.
  • a liquid crystal display includes a display module 20, a heat dissipation module 10 disposed on a rear side of the display module 20, and a light bar 30 mounted on a side of the heat dissipation module 10 adjacent to the display module 20.
  • the heat dissipation module 10 includes a hollow heat dissipation cavity 11 and a plurality of first heat dissipation fins 12 extending outward from the heat dissipation cavity 11 on the side of the heat dissipation cavity 11 away from the light bar 30.
  • a plurality of first ventilation holes 111 are defined at two ends of the plurality of ventilation tubes 13 at opposite ends of the plurality of ventilation tubes 11, and the inner cavities of the plurality of ventilation tubes 13 pass through the corresponding first ventilation holes 111 and the heat dissipation cavity 11 Externally connected.
  • the light bar 30 provides backlight for the display module 20, and the heat dissipation module 10 is used for dissipating heat generated when the light bar 30 is turned on.
  • the heat dissipation module 10 is provided with a plurality of ventilation pipes 13 inside the heat dissipation cavity 11.
  • the two ends of the plurality of ventilation pipes 13 are respectively connected to the two end faces of the heat dissipation cavity 11 and the inner cavity of the plurality of ventilation pipes 13 and the heat dissipation cavity
  • the external body of the body is connected, and a plurality of pairs of the same fan 14 are disposed at two ends of the corresponding plurality of ventilation tubes 13 on the heat dissipation cavity 11.
  • the same direction fan 14 and one of the same fan 14 are turned to the air tube. 13 the inner chamber conveys the gas, and the other of the same direction fan 14 discharges the gas in the inner cavity of the air duct 13 out of the heat radiating cavity 11, forming a gas circulation path which is generated by the light bar 30 mounted on the heat radiating cavity 11.
  • the heat transferred to the heat dissipation cavity 11 is discharged to the outside of the heat dissipation module 10, and the plurality of first heat dissipation fins 12 are simultaneously dissipated, thereby effectively dissipating heat generated by the light bar 30, thereby avoiding liquid crystal caused by excessive heat.
  • the problem of reduced display life is a heat transfer to the heat dissipation cavity 11 is discharged to the outside of the heat dissipation module 10, and the plurality of first heat dissipation fins 12 are simultaneously dissipated, thereby effectively dissipating heat generated by the light bar 30, thereby avoiding liquid crystal caused by excessive heat.
  • the liquid crystal display further includes a casing 40 disposed on the rear side of the display module 20 and shielding the heat dissipation module 10 to isolate the heat dissipation module 10 from the external environment.
  • the housing 40 includes a housing 41 , a plurality of heat dissipation holes 42 disposed on the housing 41 , and a plurality of second ventilation holes 43 corresponding to the plurality of pairs of the same fan 14 , and the heat discharged from the heat dissipation module 10 . Further drained to the outside of the LCD display.
  • the second ventilation hole 43 is a circular hole
  • the heat dissipation hole 42 is an elongated hole.
  • the first venting holes 111 are circular holes, and each pair of the same-directional fan 14 is disposed in the first venting hole 111 corresponding thereto to more efficiently complete the intake and exhaust of the inner cavity of the venting pipe 13. Operation.
  • the position of the plurality of air ducts 13 in the heat dissipating cavity 11 can be specifically designed according to the heat generation condition of the light bar 30.
  • the plurality of air ducts 13 are arranged in parallel and evenly in the heat dissipating cavity 11 to be evenly distributed. The heat radiated from the light bar 30 to the heat dissipation cavity 11 is dissipated.
  • the heat dissipation module 10 further includes: a cooling liquid 15 filled between the outer wall of the air duct 13 and the inner wall of the heat dissipation cavity 11 to further improve the heat conduction efficiency of the heat dissipation module 10 and improve the heat dissipation effect.
  • the plurality of first heat dissipation fins 12 are densely arranged in an array pattern.
  • the heat dissipation module 10 further includes: disposed on a side surface of the heat dissipation cavity 11 where the first heat dissipation fin 12 is located, and is disposed in the heat dissipation cavity 11
  • the plurality of second heat dissipation fins 16 and the plurality of second heat dissipation fins 16 are in one-to-one correspondence with the positions of the plurality of first heat dissipation fins 12; the height of the first heat dissipation fins 12 is greater than the second heat dissipation fins The height of 16.
  • a plurality of ventilation pipes are disposed inside the heat dissipation cavity, and both ends of the plurality of ventilation pipes are respectively connected to both end faces of the heat dissipation cavity and the inner cavity of the plurality of ventilation pipes are respectively cooled.
  • the external cavity of the cavity is connected, and a plurality of pairs of co-directional fans are disposed at two ends of the plurality of ventilation pipes on the heat dissipation cavity, and a coolant is filled between the outer wall of the ventilation pipe and the inner wall of the heat dissipation cavity, so that the heat dissipation module is applied to the liquid crystal display In the middle, the heat generated by the light bar can be effectively dissipated to improve the service life of the liquid crystal display.
  • the liquid crystal display of the invention adopts the above heat dissipation module, has good heat dissipation performance and long service life.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种散热模组，在散热腔体（11）内部设置多条通风管（13），多条通风管（13）的两端均分别连接散热腔体（11）的两端面且多条通风管（13）的内腔均与散热腔体（11）外部连通，同时于散热腔体（11）上对应多条通风管（13）两端设置多对同向风扇（14），并在通风管（13）外壁与散热腔体（11）内壁之间填充冷却液（15），使该散热模组应用于液晶显示器中时，能够有效地将灯条产生的热量进行散热，提高液晶显示器的寿命。

Description

散热模组及液晶显示器 技术领域
本发明涉及显示技术领域，尤其涉及一种散热模组及液晶显示器。
背景技术
液晶显示器(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用，如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等，在平板显示领域中占主导地位。
现有市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶面板的工作原理是在薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate)与彩色滤光片基板(Color Filter，CF)上施加驱动电压来控制两基板之间液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
由于液晶显示面板本身不发光，需要借由背光模组提供的光源来正常显示影像，因此背光模组成为液晶显示器的关键组件之一。背光模组依照光源入射位置的不同分成侧入式背光模组与直下式背光模组两种。直下式背光模组是将发光光源例如阴极荧光灯管(Cold Cathode Fluorescent Lamp，CCFL)或发光二极管(Light Emitting Diode，LED)设置在液晶面板后方，直接形成面光源提供给液晶面板；而侧入式背光模组是将LED灯条(Light bar)设于液晶面板的侧后方作为背光源。
随着液晶显示器的解析度越来越高，对于背光模组的亮度要求也越来越高。现有技术中增加背光模组的亮度的同时会使背光模组的灯源所产生的热量增加，散热不良会导致背光模组及液晶显示器的使用寿命下降，这对散热结构的设计提出了新的挑战。
发明内容
本发明的目的在于提供一种散热模组，散热性能良好，应用于液晶显示器中时能够有效地对灯条产生的热量进行散热，提升液晶显示器的使用寿命。
本发明的另一目的在于提供一种液晶显示器，散热性能良好，使用寿命长。
为实现上述目的，本发明首先提供一种散热模组，包括中空的散热腔体、设于所述散热腔体一侧面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通。
每对同向风扇设于与其对应的第一通风孔内。
多条通风管平行且均匀排列于散热腔体内。
所述散热模组还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
所述散热模组还包括：设于第一散热鳍片所在的散热腔体的侧面上向散热腔体内延伸的多个第二散热鳍片，多个第二散热鳍片与多个第一散热鳍片的位置一一对应；所述第一散热鳍片的高度大于第二散热鳍片的高度。
本发明还提供一种液晶显示器，包括显示模块、设于所述显示模块后侧的散热模组、安装于散热模组靠近显示模块一侧上的灯条；
所述散热模组包括中空的散热腔体、设于所述散热腔体远离灯条的侧面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通。
每对同向风扇设于与其对应的第一通风孔内；
多条通风管平行且均匀排列于散热腔体内。
所述散热模组还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
所述散热模组还包括：设于第一散热鳍片所在的散热腔体的侧面上向散热腔体内延伸的多个第二散热鳍片，多个第二散热鳍片与多个第一散热鳍片的位置一一对应；所述第一散热鳍片的高度大于第二散热鳍片的高度
所述液晶显示器还包设于显示模块后侧且遮蔽散热模组的外壳；
所述外壳包括壳体、设于壳体上的多个散热孔、及对应所述多对同向风扇设置的多个第二通风孔。
本发明还提供一种液晶显示器，包括显示模块、设于所述显示模块后侧的散热模组、安装于散热模组靠近显示模块一侧上的灯条；
所述散热模组包括中空的散热腔体、设于所述散热腔体远离灯条的侧 面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通；
其中，每对同向风扇设于与其对应的第一通风孔内；
多条通风管平行且均匀排列于散热腔体内；
其中，所述散热模组还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
本发明的有益效果：本发明提供的一种散热模组，在散热腔体内部设置多条通风管，多条通风管的两端均分别连接散热腔体的两端面且多条通风管的内腔均与散热腔体外部连通，同时于散热腔体上对应多条通风管两端设置多对同向风扇，并在通风管外壁与散热腔体内壁之间填充冷却液，使该散热模组应用于液晶显示器中时，能够有效地将灯条产生的热量进行散热，提高液晶显示器的使用寿命。本发明提供的一种液晶显示器，应用上述散热模组，散热性能良好，使用寿命长。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明散热模组的立体结构示意图；
图2为本发明散热模组的主视示意图；
图3为沿图2的A-A线的剖视示意图；
图4为沿图2的B-B线的剖视示意图；
图5为本发明液晶显示器的立体结构示意图；
图6为本发明液晶显示器去掉外壳后的侧视示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请同时参阅图1至图4，本发明首先提供一种散热模组10，用于对液晶显示器的背光模组的灯条产生的热量进行散热。如图1至图3所示，所 述散热模组10包括中空的散热腔体11、设于所述散热腔体11一侧面上向散热腔体11外延伸的多个第一散热鳍片12、容置于散热腔体11内且两端分别连接散热腔体11两端面的多条通风管13、及于散热腔体11两端面上分别对应多条通风管13两端设置的多对同向风扇14；所述散热腔体11的两端面对应多条通风管13两端设有多个第一通风孔111，所述多条通风管13的内腔经对应的第一通风孔111与散热腔体11的外部连通。
需要说明的是，上述散热模组10在使用时，将灯条安装于散热腔体11上与第一散热鳍片12相对的另一侧面上，对灯条产生的热量进行散热。该散热模组10在散热腔体11内部设置多条通风管13，多条通风管13的两端均分别连接散热腔体11的两端面且多条通风管13的内腔均与散热腔体外部连通，同时于散热腔体11上对应多条通风管13两端设置多对同向风扇14，使用时，打开同向风扇14，同向风扇14中的一个向通风管13内腔输送气体，而同向风扇14中的另一个将通风管13内腔中的气体排出散热腔体11外，形成气体循环通路，将安装在散热腔体11上的灯条产生的并热传导至散热腔体11的热量排至散热模组10外部，加上多个第一散热鳍片12同时散热，能够有效地对灯条产生的热量进行散热，避免热量过高导致的液晶显示器的使用寿命下降的问题。
优选地，所述第一通风孔111为圆孔，每对同向风扇14设于与其对应的第一通风孔111内，以更有效地完成对通风管13的内腔进行进气和排气的操作。
具体地，多条通风管13在散热腔体11内的位置可根据灯条的热量产生情况进行具体的设计，优选地，多条通风管13平行且均匀排列于散热腔体11内，均匀地对灯条传导至散热腔体11的热量进行散热。
优选地，所述散热模组10还包括：填充于通风管13外壁与散热腔体11内壁之间的冷却液15，以进一步提高散热模组10的热传导效率，提升散热效果。
优选地，多个第一散热鳍片12按阵列样式密集排布。
可选地，请参阅图4，在本发明的一实施例中，所述散热模组10还包括：设于第一散热鳍片12所在的散热腔体11的侧面上向散热腔体11内延伸的多个第二散热鳍片16，多个第二散热鳍片16与多个第一散热鳍片12的位置一一对应；所述第一散热鳍片12的高度大于第二散热鳍片16的高度。通过设置第二散热鳍片16，进一步增加散热模组10的散热面积，进而提升散热模组10的散热效果。
请参阅图5及图6，结合图1至图4，基于上述散热模组10，本发明还 提供一种液晶显示器，包括显示模块20、设于所述显示模块20后侧的散热模组10、安装于散热模组10靠近显示模块20一侧上的灯条30。
所述散热模组10包括中空的散热腔体11、设于所述散热腔体11远离灯条30的侧面上向散热腔体11外延伸的多个第一散热鳍片12、容置于散热腔体11内且两端分别连接散热腔体11两端面的多条通风管13、及于散热腔体11两端面上分别对应多条通风管13两端设置的多对同向风扇14；所述散热腔体11的两端面对应多条通风管13两端设有多个第一通风孔111，所述多条通风管13的内腔经对应的第一通风孔111与散热腔体11的外部连通。
需要说明的是，上述液晶显示器中，灯条30为显示模块20提供背光，散热模组10用于对灯条30点亮时产生的热量进行散热。所述散热模组10在散热腔体11内部设置多条通风管13，多条通风管13的两端均分别连接散热腔体11的两端面且多条通风管13的内腔均与散热腔体外部连通，同时于散热腔体11上对应多条通风管13两端设置多对同向风扇14，液晶显示器在进行显示时，打开同向风扇14，同向风扇14中的一个向通风管13内腔输送气体，而同向风扇14中的另一个将通风管13内腔中的气体排出散热腔体11外，形成气体循环通路，将安装在散热腔体11上的灯条30产生的并热传导至散热腔体11的热量排至散热模组10外部，加上多个第一散热鳍片12同时散热，能够有效地对灯条30生的热量进行散热，避免热量过高导致的液晶显示器的使用寿命下降的问题。
具体地，所述液晶显示器还包括设于显示模块20后侧且遮蔽散热模组10的外壳40，将散热模组10与外部环境隔离开。所述外壳40包括壳体41、设于壳体41上的多个散热孔42、及对应所述多对同向风扇14设置的多个第二通风孔43，将散热模组10排出的热量进一步排至液晶显示器外部。优选地，所述第二通风孔43为圆孔，所述散热孔42为长条形孔。
优选地，所述第一通风孔111为圆孔，每对同向风扇14设于与其对应的第一通风孔111内，以更有效地完成对通风管13的内腔进行进气和排气的操作。
具体地，多条通风管13在散热腔体11内的位置可根据灯条30的热量产生情况进行具体的设计，优选地，多条通风管13平行且均匀排列于散热腔体11内，均匀地对灯条30传导至散热腔体11的热量进行散热。
优选地，所述散热模组10还包括：填充于通风管13外壁与散热腔体11内壁之间的冷却液15，以进一步提高散热模组10的热传导效率，提升散热效果。
优选地，多个第一散热鳍片12按阵列样式密集排布。
可选地，请参阅图4，在本发明的一实施例中，所述散热模组10还包括：设于第一散热鳍片12所在的散热腔体11的侧面上向散热腔体11内延伸的多个第二散热鳍片16，多个第二散热鳍片16与多个第一散热鳍片12的位置一一对应；所述第一散热鳍片12的高度大于第二散热鳍片16的高度。通过设置第二散热鳍片16，进一步增加散热模组10的散热面积，进而提升散热模组10的散热效果。
综上所述，本发明的散热模组，在散热腔体内部设置多条通风管，多条通风管的两端均分别连接散热腔体的两端面且多条通风管的内腔均与散热腔体外部连通，同时于散热腔体上对应多条通风管两端设置多对同向风扇，并在通风管外壁与散热腔体内壁之间填充冷却液，使该散热模组应用于液晶显示器中时，能够有效地将灯条产生的热量进行散热，提高液晶显示器的使用寿命。本发明的液晶显示器，应用上述散热模组，散热性能良好，使用寿命长。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (13)

  1. 一种散热模组，包括中空的散热腔体、设于所述散热腔体一侧面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通。
  2. 如权利要求1所述的散热模组，其中，每对同向风扇设于与其对应的第一通风孔内。
  3. 如权利要求1所述的散热模组，其中，多条通风管平行且均匀排列于散热腔体内。
  4. 如权利要求1所述的散热模组，还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
  5. 如权利要求1所述的散热模组，还包括：设于第一散热鳍片所在的散热腔体的侧面上向散热腔体内延伸的多个第二散热鳍片，多个第二散热鳍片与多个第一散热鳍片的位置一一对应；所述第一散热鳍片的高度大于第二散热鳍片的高度。
  6. 一种液晶显示器，包括显示模块、设于所述显示模块后侧的散热模组、安装于散热模组靠近显示模块一侧上的灯条；
    所述散热模组包括中空的散热腔体、设于所述散热腔体远离灯条的侧面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通。
  7. 如权利要求6所述的液晶显示器，其中，每对同向风扇设于与其对应的第一通风孔内；
    多条通风管平行且均匀排列于散热腔体内。
  8. 如权利要求6所述的液晶显示器，其中，所述散热模组还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
  9. 如权利要求6所述的液晶显示器，其中，所述散热模组还包括：设于第一散热鳍片所在的散热腔体的侧面上向散热腔体内延伸的多个第二散 热鳍片，多个第二散热鳍片与多个第一散热鳍片的位置一一对应；所述第一散热鳍片的高度大于第二散热鳍片的高度。
  10. 如权利要求6所述的液晶显示器，还包设于显示模块后侧且遮蔽散热模组的外壳；
    所述外壳包括壳体、设于壳体上的多个散热孔、及对应所述多对同向风扇设置的多个第二通风孔。
  11. 一种液晶显示器，包括显示模块、设于所述显示模块后侧的散热模组、安装于散热模组靠近显示模块一侧上的灯条；
    所述散热模组包括中空的散热腔体、设于所述散热腔体远离灯条的侧面上向散热腔体外延伸的多个第一散热鳍片、容置于散热腔体内且两端分别连接散热腔体两端面的多条通风管、及于散热腔体两端面上分别对应多条通风管两端设置的多对同向风扇；所述散热腔体的两端面对应多条通风管两端设有多个第一通风孔，所述多条通风管的内腔经对应的第一通风孔与散热腔体的外部连通；
    其中，每对同向风扇设于与其对应的第一通风孔内；
    多条通风管平行且均匀排列于散热腔体内；
    其中，所述散热模组还包括：填充于通风管外壁与散热腔体内壁之间的冷却液。
  12. 如权利要求11所述的液晶显示器，其中，所述散热模组还包括：设于第一散热鳍片所在的散热腔体的侧面上向散热腔体内延伸的多个第二散热鳍片，多个第二散热鳍片与多个第一散热鳍片的位置一一对应；所述第一散热鳍片的高度大于第二散热鳍片的高度。
  13. 如权利要求11所述的液晶显示器，还包设于显示模块后侧且遮蔽散热模组的外壳；
    所述外壳包括壳体、设于壳体上的多个散热孔、及对应所述多对同向风扇设置的多个第二通风孔。
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US20180307091A1 (en) 2018-10-25
US10330969B2 (en) 2019-06-25

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