WO2013071652A1 - 用于固定背板上的pcb的凸包及背板、背光模组 - Google Patents

用于固定背板上的pcb的凸包及背板、背光模组 Download PDF

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Publication number
WO2013071652A1
WO2013071652A1 PCT/CN2011/083248 CN2011083248W WO2013071652A1 WO 2013071652 A1 WO2013071652 A1 WO 2013071652A1 CN 2011083248 W CN2011083248 W CN 2011083248W WO 2013071652 A1 WO2013071652 A1 WO 2013071652A1
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WO
WIPO (PCT)
Prior art keywords
convex hull
pcb
fixing
backboard
convex
Prior art date
Application number
PCT/CN2011/083248
Other languages
English (en)
French (fr)
Inventor
郭仪正
萧宇均
黄冲
程加河
阙成文
李全
杨流洋
Original Assignee
深圳市华星光电技术有限公司
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
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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 US13/375,872 priority Critical patent/US8882329B2/en
Publication of WO2013071652A1 publication Critical patent/WO2013071652A1/zh

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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
    • G02F1/133308—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
    • G02F1/133308—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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements
    • G02F2201/465—Snap -fit

Definitions

  • the present invention relates to the field of liquid crystal display devices, and more particularly to a method for fixing a backplane
  • the backlight module In the backlight module, most of the components need to be mounted and fixed on the backplane.
  • the PCB needs to be fixed to the backplane through the convex hull on the backplane.
  • the convex hull is a structure disposed on the backboard for fixing components such as a PCB board.
  • the convex hull is generally protruded from the back board surface, and the PCB board is fixed on the convex hull by screws or other lock accessories, thereby avoiding the PCB and the back board. Direct contact with the board surface causes a short circuit.
  • the convex hull 80 on the back plate is integrally stamped on the back plate when the back plate is fabricated, so that the position of the convex hull 80 on the back plate is fixed, which is difficult to adapt to different.
  • the technical problem to be solved by the present invention is to provide a convex package and a back plate and a backlight module for independently fixing and versatile PCBs for fixing the backplane.
  • a convex hull for fixing a PCB on a backplane wherein the convex hull is provided with a PCB mounting hole for fixing a PCB;
  • the fixing structure is a threaded hole provided at the bottom of the convex hull.
  • the convex hull can be mounted to the backing plate by screws, which is easy to install and detachable.
  • the threaded hole penetrates the convex hull.
  • the PCB, the convex hull and the back plate can be fixed to each other with only one screw.
  • the screws pass through the PCB, the convex hull and the back plate, and pass through the nut. Lock to secure the three components.
  • the fixing structure is a rivet integrally provided at the bottom of the convex hull.
  • the riveting method is simpler and can be done mechanically, which is convenient, fast and reliable.
  • the convex hull is a pusher structure having a trapezoidal cross section.
  • the pusher structure is more suitable for PCB locking.
  • a backboard is provided on the backboard with a convex hull mounting hole as described above.
  • a backlight module includes a backboard, a PCB board, and a convex hull; the convex hull is provided with a PCB mounting hole for fixing the PCB, and a bottom of the convex hull is provided for mounting itself to the backboard a fixing structure, a convex package mounting hole for fixing the convex hull is disposed on the back plate, the convex hull is mounted to the back plate through the convex hull mounting hole, and the PCB board is fixed on the On the convex hull.
  • the bottom of the convex hull is fixed on the back plate by screws, and the PCB board is fixed on the convex hull by another screw.
  • the convex hull can be mounted to the back plate by screws, is easy to install, and is detachable.
  • the PCB is mounted to the convex hull by another screw, thereby attaching the PCB to the backboard.
  • the convex hull is provided with a threaded hole penetrating through itself, and the PCB board and the convex hull are fixed to the backboard by a screw.
  • the PCB, the convex hull and the back plate can be fixed to each other with only one screw.
  • the screws pass through the PCB, the convex hull and the back plate, and are locked by the nut to fix the three components.
  • the convex hull is riveted to the back plate by a rivet at the bottom of the body, and the PCB is fixed to the convex hull by screws.
  • the riveting method is simpler and can be done mechanically, which is convenient and quick, and has high reliability.
  • the convex hull on the back plate is set as a separate single part, the convex hull can be fixed to the back plate through the fixing structure at the bottom thereof, and therefore, according to different needs, such as different size PCB boards, different numbers of components
  • Figure 1 is a structural tube diagram of a conventional backboard
  • FIG. 2 is a structural view of a convex hull of a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a convex package locking PCB in Embodiment 1 of the present invention.
  • Embodiment 4 is a structural view of another convex hull of Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural view of another convex hull locking PCB in the first embodiment of the present invention
  • FIG. 6 is a structural structural view of a third convex hull in the first embodiment of the present invention.
  • Figure 7 is a structural view of a back plate of Embodiment 2 of the present invention.
  • Figure 8 is a structural view of a bridge of a second embodiment of the present invention.
  • Figure 9 is a structural view of a back plate of Embodiment 3 of the present invention.
  • Figure 10 is a structural view of a back plate of Embodiment 4 of the present invention.
  • Figure 11 is a structural view of a back plate of Embodiment 5 of the present invention.
  • Figure 12 is a structural view of a back plate of Embodiment 6 of the present invention.
  • Figure 13 is an enlarged view of A of Figure 12 of the present invention.
  • Figure 14 is a trajectory analysis diagram of the convex hull in the embodiment 6,
  • Figure 15 is another structural form of Embodiment 6 of the present invention.
  • Figure 16 is a third structural form of Embodiment 6 of the present invention.
  • Figure 17 is a structural form of Embodiment 7 of the present invention.
  • Figure 19 is another structural form of Embodiment 7 of the present invention.
  • Figure 20 is a third structural form of Embodiment 7 of the present invention.
  • Figure 21 is a structural form of Embodiment 8 of the present invention.
  • Figure 22 is a trajectory analysis diagram of a convex hull according to Embodiment 8 of the present invention.
  • Figure 23 is another structural form of Embodiment 8 of the present invention.
  • Figure 24 is a third structural form of Embodiment 8 of the present invention.
  • back panel 100, frame, 111, upper bracket, 112, right bracket, 113, lower bracket, 114, left bracket, 115, center bracket, 120, bridge, 121, chute, 122, through hole, 124, end hinge, 125, tail hinge, 126, transverse groove, 127, connecting groove, 800, convex hull , 810, threaded hole, 811, screw, 812, nut, 820, rivet, 300, PCB.
  • the embodiment of the invention provides a liquid crystal display device, which comprises a liquid crystal panel and a backlight module, and a back plate is arranged at the bottom of the backlight module.
  • the backplane is provided with a separate convex hull for locking components such as a PCB, and the convex hull is provided with a PCB mounting hole for fixing the PCB; the bottom of the convex hull is provided for mounting itself to the back Fixed structure on the board.
  • the backlight module In the backlight module, most of the components need to be mounted and fixed on the backplane.
  • the PCB needs to be fixed to the backplane through the convex hull on the backplane.
  • a convex hull 800 exists as a separate component.
  • the convex hull is not formed on the backboard when the backboard is produced, but when the convex hull is needed, on the backboard 1
  • the convex hull 800 is installed at the corresponding position to achieve flexible use of the convex hull 800 to position components such as PCBs of various sizes.
  • the convex hull 800 has a PCB mounting hole (ie, a threaded hole 810) for mounting a component such as a PCB board, and the threaded hole 810 is straight through the independent convex hull 800 so that the independent convex hull 800 can be
  • the PCB 811 is fixed to the backing plate 1 from below, and the PCB board can be fixed at the same time.
  • the backboard 1 should be provided with a convex hull mounting hole corresponding to the threaded hole 810 of the convex hull 800, such as A through hole or a chute to enable the convex hull 800 to be fixed to the back plate 1.
  • the bottom of the convex hull can be arranged in a similar structure as the rivet as shown in FIG. 4, that is, the rivet and the convex hull are integrally formed, and the connection between the lower end portion of the convex hull 800 and the back plate 1 is a riveted form, that is, The convex hull 800 is riveted to the backing plate 1 by rivets 820.
  • the way of riveting is relatively quick compared to the way the screws are connected, and can be done by machine to increase the efficiency of production.
  • the convex hull 800 is fixed to the backboard 1 by rivets 820, and then the PCB 300 is fixed to the convex hull by screws 811 to complete the locking of the PCB 300.
  • the convex hull can be directly stamped from the plate.
  • the convex hull 800 has a hollow structure inside, and the whole is made of a plate material, which saves material and is convenient to manufacture. .
  • the shape of the independent convex hull 800 described in this embodiment is not limited to the tapered cross-sectional shape shown in the drawing, and the corresponding use can be achieved with respect to other shapes such as a square.
  • a corresponding convex hull is set at the corresponding position; meanwhile, according to different numbers of PCB board components, the corresponding number of convex hulls is set.
  • FIG. 7 it is a frame type back board.
  • the back board is combined into a main frame 100 by a plurality of brackets, and then combined with the corresponding bridges 120 to be fixed on the brackets.
  • the brackets and the bridges are respectively provided with fixed PCB boards.
  • the convex hull 800 required for the components, etc., in the present embodiment, the convex hull 800 is a convex hull present as a separate part as described in the first embodiment.
  • a plurality of bridges 120 are disposed on the main frame 100 of the frame type backboard, and the bridge 120 is provided with a sliding slot 121 (as shown in FIG. 8 , a convex hull is disposed on a bridge).
  • the convex hull 800 is installed in the sliding slot 121, and the convex hull 800 is installed in the same manner as the mounting method described in the first embodiment, and is fixed by screws or rivets integrally formed on the bottom of the bottom, and can of course be fixed by other means, and It is not limited to the two modes described in Embodiment 1.
  • the convex hull 800 is placed at a corresponding position in the chute 121, so that the locking of the PCB of this size can be realized.
  • the convex hull can be screwed to the sliding slot in advance, but the screw is not locked, so that the convex hull can slide on the sliding slot, and the convex hull is slid to the corresponding size of the PCB. Position, lock the PCB and then lock the screws. It is also possible to fix the convex hull directly by screws or rivets for the size of the PCB, and then lock the PCB to reduce the number of processes.
  • the chute can also be disposed on the bracket, thereby providing more convex hull mounting positions, and meeting some backlight modules with more components.
  • a back plate processed by a single plate member is provided with a sliding slot 121 on the surface of the plate.
  • the length and position of the sliding slot 121 and the number are corresponding to the PCB of various sizes and specifications.
  • a convex hull 800 is disposed on the sliding plate 121.
  • the convex hull 800 is a convex hull present as a separate component as described in Embodiment 1.
  • the convex hull 800 can be adjusted according to the size of the PCB, and the adjustment range is in the chute 121, so that one type of the backboard can be used for various backlight modules.
  • the convex hull can be installed on the sliding slot in advance, but the screw is not locked, so that the convex hull can slide on the sliding slot, and the convex hull is slid to the corresponding position for the size of the PCB. , lock the PCB and then lock the screws. It is also possible to fix the convex hull directly by screws or rivets for the size of the PCB, and then lock the PCB to reduce the number of steps.
  • the backboard is also a frame type backboard.
  • the backboard is combined into a main frame 100 by a plurality of brackets, and is combined with the corresponding bridges 120 to be fixed on the brackets.
  • the brackets and the bridges are respectively provided with fixed PCB boards.
  • the convex hull 800 required for the components, etc., in the present embodiment, the convex hull 800 is a convex hull present as a separate part as described in the first embodiment.
  • the main frame 100 of the frame type backboard is provided with a plurality of bridges 120, and the bridges 120 are provided with a plurality of through holes 122.
  • the position of the through hole 122 can be set at a corresponding position of the bridge 120 according to the size of a more commonly used PCB or other components. That is, for each type of PCB, the bridge 120 is provided with a corresponding through hole 122. Or, it can be a series of standard holes with equal spacing. This type of standard hole covers the through holes required for PCBs of various specifications for processing.
  • the convex hull 800 is installed in the through hole 122.
  • the convex hull 800 is mounted in the same manner as the mounting method described in the first embodiment, and is fixed by a screw or a rivet structure formed by itself, and may of course be fixed by other means. It is limited to the two modes described in the embodiments. According to the PCB of different size specifications, the convex hull 800 is disposed on the through hole 122 at the corresponding position, so that the PCB of the size can be locked to On the back panel.
  • the through holes can also be disposed on the bracket, thereby providing more convex package mounting positions, and meeting the backlight modules with more components.
  • the convex hull used on the backboard is the convex hull described in Embodiment 1, and as shown in FIG. 11, a backing plate processed from a single slab is disposed on the surface of the slab.
  • a through hole 122 there is a through hole 122, and the position of the through hole 122 can be set at a corresponding position on the surface of the back plate according to the size of a more common PCB or other components, that is, for each type of PCB, the back plate surface
  • Each of the plurality of through holes 122 is disposed, and the convex hull 800 can be fixedly fixed to the plurality of through holes 122 according to requirements, and correspondingly, the holes of the plurality of positions are set according to the size of the PCB of various specifications, so that one back plate It can adapt to PCBs of various sizes, and avoids unnecessary holes, so that the strength of the back plate will not be weakened; or it can be a series of standard holes with equal spacing, which covers a variety of specifications.
  • the through holes 122 required for the PCB are facilitated for processing, and the convex hull 800 can be selectively fixed to the standard holes according to the size of the PCB.
  • the convex hull 800 is mounted as a separately existing component in the through hole 122. According to the PCB of different sizes, the convex hull 800 is disposed on the through hole 122 at the corresponding position, so that the PCB of the size can be locked to the back. On the board.
  • the icon used is the convex hull described in Embodiment 1, and the fourth embodiment of the present invention is shown in FIG. 12, where A is a setting of a rotating bridge, FIG.
  • FIG. 14 a plurality of oppositely disposed bridges 120 are disposed on the center bracket 115 and the right bracket 112.
  • the fixed ends of the bridges 120 are respectively connected to the center bracket 115 through the end hinges 124 and
  • the right bracket 112 is coupled such that the bridge 120 can be rotated relative to its fixed point on the bracket (i.e., the end hinge 124).
  • FIG. 14 is a running track diagram of the convex hull 800 on the two bridges 120 on the right bracket 112.
  • the circular arc line R indicates the running trajectory of the convex hull 800
  • the straight lines L1 and L2 refer to PCBs of different sizes.
  • the connection point of the fixed point as shown in the figure, the intersection of the line L1 and the curve R is the position of the fixed points A and a of the PCB, and the intersection of the line L2 and R is the fixed point B and b of the other PCB.
  • Position that is, in the frame In the rotatable trajectory of the convex hull 800 on the bridge 120, the locking positions of the PCBs of the two specifications of the fixed point at the A and a positions, B and b positions are provided. Therefore, the solution can set the running track of the corresponding convex hull 800 according to different sizes of PCBs, and can simultaneously meet the installation of a plurality of PCBs of different sizes, thereby improving the versatility of the backboard.
  • the free ends of the two opposite bridges 120 may be connected through the tail hinge 125, and a connecting groove 127 may be opened at the joint thereof to make the tail hinge 125 can slide on the connecting groove so as not to block the rotation of the bridge 120; correspondingly, as shown in FIG. 16, a transverse groove 126 is also formed at the fixed end of the bridge 120, so that the end hinge 124 can also be in the transverse groove.
  • the inner portion of the bridge 120 is also slidable relative to the end hinge 124, so that the movable trajectory of the convex hull 800 on the bridge 120 is no longer limited to the circular arc trajectory as shown in FIG. It is a larger area, which further improves the versatility of the backplane.
  • the hinge connection between the bridge and the bracket, and the hinge connection between the bridge and the bridge can be connected by screws or rivets, and the screws can be used to lock the screws after completing the locking of the PCB. Tight, improve its stability; and the use of rivets can improve the reliability of the connection.
  • a chute or a through hole as described in Embodiments 1 to 3 on the bridge and use it as a separate part.
  • a chute 121 is provided on the optional bridge 120, and the convex hull 800 can be disposed at a corresponding position on the chute 121 as needed.
  • the movable position of the convex hull 800 is analyzed, and the shaded portion (i.e., the oblique line filling portion) shown in the figure is a movable area of the convex hull 800. That is to say, after the chute 121 is used, the movable position of the convex hull 800 will be changed from the original circular arc to the surface area, so that the backboard can be adapted to a wider variety of PCB sizes.
  • the function of the lateral groove described in Embodiment 4 can also be replaced by the chute 121, as shown in FIG.
  • the chute 121 extends to the junction of the fixed ends.
  • the hinge connection between the bridge and the bracket, and the hinge connection between the bridge and the bridge can be connected by screws or rivets, and the screws can be used to lock the screws after completing the locking of the PCB. Tight, improve its stability; and the use of rivets can improve the reliability of the connection.
  • an eighth embodiment of the present invention is different from the seventh embodiment in that a through hole 122 is provided in the bridge 120, and a convex hull existing as a separate part is mounted on the through hole 122. 800, the convex hull 800 can be disposed on the through hole 122 at the corresponding position as needed. As shown in Fig. 22, the movable position of the convex hull 800 is analyzed.
  • the circular arc R indicates the movable trajectory of the convex hull 800 on the through hole 122 at a certain position
  • the circular arc line R1 indicates that the convex hull 800 is The movable track on the through hole 122 at another position, similarly, when the convex hull 800 is on the through hole 122 at a different position, a different movable trajectory will be generated.
  • a large movable track of the convex hull 800 can also be obtained, that is, according to different specifications of the PCB, the rotation position of the corresponding bridge 120 and the through hole 122 are set.
  • the position and number enable the movable track of the convex hull 800 to cover the locking points of various PCBs, so that the back plate can be adapted to PCBs of various sizes.
  • a connecting groove 127 is provided for mounting the tail hinge 125 so that The bridge can still be rotated.
  • the fixed end end hinges 124 can also be provided with corresponding mounting slots 126 to allow the bridge to slide relative to the end hinges for a better convex hull movable area.
  • the hinge connection between the bridge and the bracket, and the hinge connection between the bridge and the bridge can be connected by screws or rivets, and the screws can be used to lock the screws after completing the locking of the PCB. Tight, improve its stability; and the use of rivets can improve the reliability of the connection.

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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)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Connection Of Plates (AREA)

Abstract

一种用于固定背板上的PCB的凸包及背板、背光模组，凸包（800）上设置有用于固定PCB的PCB安装孔（810）；凸包（800）的底部设置有用于将其本身安装到背板（1）上的固定结构。由于将背板（1）上的凸包（800）设置成独立的单个零件，凸包（800）可以通过其底部的固定结构固定到背板（1）上，因此，可以根据不同的需求如不同尺寸的PCB板，不同数量的组件的需要，在背板（1）上设置相应位置及相应数量的凸包（800），从而避免了生产多种背板规格以适应多种PCB等组件以及不同数量的组件的需要，只需生产一种背板即可，节约了背板的生产成本，并且提高了背板的通用性。

Description

用于固定背板上的 PCB的凸包及背板、 背光模组
【技术领域】
本发明涉及液晶显示装置领域， 更具体的说， 涉及一种用于固定背板上的
PCB的凸包及背板、 背光模组。 【背景技术】
在背光模组中， 大部分组件都需要安装固定在背板上， 如 PCB需要通过背 板上的凸包固定到背板上。
凸包， 是设置于背板上用于固定 PCB板等组件的结构， 凸包一般凸出于背 板板面， PCB板通过螺釘或其他锁附件固定在凸包上， 进而避免 PCB与背板板 面直接接触造成短路。 如图 1所示的现有背板， 该背板上的凸包 80在背板制作 时一体沖压成型于背板之上， 这样背板上的凸包 80的位置是固定的， 难以适应 不同尺寸的 PCB板； 同时对于不同尺寸的 PCB, 以及不同组件数量需求的背光 模组， 需要重新开模制作相应的背板， 针对不同尺寸的 PCB板， 需要开模制作 新的背板， 因此其通用性不好， 并且生产成本在这种情况下会较高。
【发明内容】
本发明所要解决的技术问题是提供一种独立使用、 通用性好的用于固定背 板上的 PCB的凸包及背板、 背光模组。
本发明的目的是通过以下技术方案来实现的： 一种用于固定背板上的 PCB 的凸包， 所述凸包上设置有用于固定 PCB的 PCB安装孔； 所述凸包的底部设置 有用于将其本身安装到所述背板上的固定结构。
优选的， 所述固定结构为凸包底部设置的螺纹孔。 凸包可以通过螺釘安装 到背板上， 安装方便， 并且可拆卸。
优选的， 所述螺纹孔贯穿凸包。 这样可以仅用一颗螺釘就能实现 PCB、 凸 包以及背板三个组件的相互固定， 螺釘穿过 PCB、 凸包以及背板， 并通过螺母 锁紧， 使三个组件固定。
优选的， 所述固定结构为一体设置在凸包底部的铆釘。 铆接的方式比较筒 单， 同时可以使用机械完成， 方便快捷， 可靠性高。
优选的， 所述凸包为截面呈梯形的推体结构。 推体结构更适宜于 PCB的锁 附。
优选的， 一种背板， 所述背板上设置有如上所述的凸包安装孔。
一种背光模组， 包括背板、 PCB 板以及凸包； 所述凸包上设置有用于固定 PCB的 PCB安装孔， 所述凸包的底部设置有用于将其本身安装到所述背板上的 固定结构， 所述背板上设置有用于固定所述凸包的凸包安装孔， 所述凸包通过 所述凸包安装孔安装到所述背板上， 所述 PCB板固定在所述凸包上。
优选的， 所述凸包的底部通过螺釘固定在所述背板的上， 所述 PCB板通过 另一螺釘固定在所述凸包上。 凸包可以通过螺釘安装到背板上， 安装方便， 并 且可拆卸， PCB通过另一螺釘安装到凸包上， 从而实现将 PCB锁附在背板上。
优选的， 所述凸包设有贯穿其本身的螺纹孔， 所述 PCB板、 凸包通过一个 螺釘固定到背板上。 这样可以仅用一颗螺釘就能实现 PCB、 凸包以及背板三个 组件的相互固定， 螺釘穿过 PCB、 凸包以及背板， 并通过螺母锁紧， 使三个组 件固定。
优选的， 所述凸包通过其本身底部的铆釘铆接到所述背板上， 所述 PCB通 过螺釘固定到凸包上。 铆接的方式比较筒单， 同时可以使用机械完成， 方便快 捷， 可靠性高。
本发明由于将背板上的凸包设置成独立的单个零件， 凸包可以通过其底部 的固定结构固定到背板上， 因此， 可以根据不同的需求如不同尺寸的 PCB板， 不同数量的组件的需要， 在背板上设置相应位置及相应数量的凸包， 从而避免 了生产多种背板规格以适应多种 PCB等组件以及不同数量的组件的需要， 只需 生产一种背板即可， 节约了背板的生产成本， 并且提高了背板的通用性。 【附图说明】
图 1是现有背板的结构筒图，
图 2是本发明实施例 1中一种凸包的结构筒图，
图 3是本发明实施例 1中的凸包锁附 PCB的结构示意图，
图 4是本发明实施例 1另一种凸包的结构筒图，
图 5是本发明实施例 1中的另一种凸包锁附 PCB的结构示意图， 图 6是本发明实施例 1中第三种凸包的结构筒图，
图 7是本发明实施例 2的背板的结构筒图，
图 8是本发明实施例 2的架桥的结构筒图，
图 9是本发明实施例 3背板的结构筒图，
图 10是本发明实施例 4的背板的结构筒图，
图 11是本发明实施例 5的背板的结构筒图，
图 12是本发明实施例 6的背板的结构筒图，
图 13是本发图 12的 A的放大图，
图 14是实施例 6中凸包的轨迹分析图，
图 15是本发明实施例 6的另一种结构形式，
图 16是本发明实施例 6的第三种结构形式，
图 17是本发明实施例 7的一种结构形式，
图 18是本发明实施例 7的凸包的轨迹分析图，
图 19是本发明实施例 7的另一种结构形式，
图 20是本发明实施例 7的第三种结构形式，
图 21是本发明实施例 8的一种结构形式，
图 22是本发明实施例 8的凸包的轨迹分析图，
图 23是本发明实施例 8的另一种结构形式，
图 24是本发明实施例 8的第三种结构形式。
其中： 1、 背板， 100、 框架， 111、 上支架， 112、 右支架， 113、 下支架, 114、左支架， 115、中心支架， 120、架桥， 121、滑槽， 122、通孔， 124、 端部铰链， 125、 尾部铰链， 126、 横槽， 127、 连接槽， 800、 凸包， 810、 螺纹 孔， 811、 螺釘， 812、 螺母， 820、 铆釘， 300、 PCB。
【具体实施方式】
本发明实施例提供一种液晶显示装置， 包括液晶面板和背光模组， 所述背 光模组底部设有背板。 所述背板上设置用于锁附 PCB等组件的独立凸包， 所述 凸包上设置有用于固定 PCB的 PCB安装孔；所述凸包的底部设置有用于将其本 身安装到所述背板上的固定结构。
本发明通过以下优选的实施例进一步说明：
实施例 1
在背光模组中， 大部分组件都需要安装固定在背板上， 如 PCB需要通过背 板上的凸包固定到背板上。
如图 2及图 4所示为一种作为独立零件存在的凸包 800,此类凸包并不在背 板生产时成形在背板上， 而是在需要使用凸包的时候， 在背板 1 的相应位置上 将凸包 800安装上去，以达到灵活运用凸包 800来定位各种尺寸的 PCB等组件。
如图 2所示，凸包 800具有一用于安装固定 PCB板等组件的 PCB安装孔 (即 螺纹孔 810),该螺纹孔 810—直贯通该独立凸包 800, 以使独立凸包 800可以通 过螺釘 811从下方固定到背板 1上， 同时又可以在上方固定 PCB板， 相应的， 背板 1上应当设置有与所述凸包 800的螺纹孔 810大小相当的凸包安装孔， 如 通孔或滑槽， 以使凸包 800能够固定到背板 1上。 同样的， 也可以仅使用一个 螺釘配合螺母实现 PCB、 凸包以及背板之间的固定， 如图 3所示， 由于螺纹孔 贯通了整个凸包 800, 进而可以通过一个螺釘 811配合螺母 812直接将 PCB300 锁附到背板 1上。
为了使安装方便， 如图 4所示凸包的底部可以设置成铆釘类似的结构， 即 将铆釘与凸包一体成型， 凸包 800的下端部分与背板 1的连接是铆接形式， 即 凸包 800通过铆釘 820铆接到背板 1上。 铆接的方式相对于螺釘连接的方式， 其比较快捷， 并可通过机器完成， 提高生产的效率。 如图 5所示， 凸包 800通 过铆釘 820固定到背板 1上， 然后 PCB300通过螺釘 811固定到凸包上， 完成对 PCB300的锁附。
为了节约材料， 以及加工方便， 凸包可以由板件直接沖压形成， 如图 6所 示， 凸包 800 内部为镂空结构， 其整体由一板件材料制作而成， 既节约材料， 又方便制作。
当然， 本实施例中所述的独立凸包 800 的形状并不限于图中所示的锥形截 面形状， 相对于其它形状如方形也能达到相应的用途。
在本实施例中， 根据背光模组中 PCB的尺寸， 再在相应位置上设置相应的 凸包； 同时， 根据不同数量的 PCB板组件， 设置相应的凸包数量。
实施例 2
如图 7所述为一种框架式背板， 背板通过多个支架组合成主框架 100,再配 合相应的架桥 120组合固定在支架上， 支架以及架桥上相应的设置有固定 PCB 板等组件所需要的凸包 800, 在本实施例中， 凸包 800为实施例 1中所述的作为 单独零件存在的凸包。 如图 7所示， 框架式背板的主框架 100上设置有多个架 桥 120,架桥 120上设置有滑槽 121(如图 8所示为一个架桥上设置凸包的情况 ), 凸包 800安装在滑槽 121 内， 凸包 800的安装方式与实施例 1所述的安装方式 一样， 通过螺釘， 或是自身底部一体成型的铆釘进行固定， 当然也可以由其它 方式固定， 并不限于实施例 1所述的两种方式。 根据不同尺寸规格的 PCB , 将 凸包 800设置在滑槽 121内的相应位置， 从而可以实现对该种尺寸的 PCB的锁 附。
为了安装上的方便， 可以事先将凸包通过螺釘安装到所述滑槽上， 但并不 将螺釘锁紧， 使凸包可以在滑槽上滑动， 针对 PCB的尺寸将凸包滑动到相应的 位置， 锁附 PCB后再将螺釘进行锁紧。 也可以针对 PCB的尺寸， 直接通过螺釘 或铆釘固定凸包， 再锁附 PCB , 以减少工序。 在本实施例中， 滑槽同样可以设置在支架上， 进而提供更多的凸包安装位 置， 满足一些组件较多的背光模组。
实施例 3
如图 9所示为一个由一整块板件加工而成的背板， 在其板面上设置有滑槽 121 ,滑槽 121的长度及位置以及数量根据各种尺寸规格的 PCB而相应的设置在 背板板面上， 在滑槽 121上设置有凸包 800, 在本实施例中， 凸包 800为实施例 1中所述的作为单独零件存在的凸包。 凸包 800可以根据 PCB的尺寸需要而进 行位置的调整， 其调整范围在滑槽 121 内， 这样， 此一种类型的背板可以通用 于多种背光模组。
为了安装上的方便， 可以事先将凸包通过安装到所述滑槽上， 但并不将螺 釘锁紧，使凸包可以在滑槽上滑动，针对 PCB的尺寸将凸包滑动到相应的位置， 锁附 PCB后再将螺釘进行锁紧。也可以针对 PCB的尺寸， 直接通过螺釘或铆釘 固定凸包， 再锁附 PCB, 以减少工序。
实施例 4
如图 10所示也是一种框架式背板， 背板通过多个支架组合成主框架 100, 再配合相应的架桥 120组合固定在支架上， 支架以及架桥上相应的设置有固定 PCB板等组件所需要的凸包 800,在本实施例中， 凸包 800为实施例 1中所述的 作为单独零件存在的凸包。 如图 10所示， 框架式背板的主框架 100上设置有多 个架桥 120, 架桥 120上设置有多个通孔 122。 通孔 122的位置可以根据较为常 用的 PCB或其他组件的尺寸设置在架桥 120的相应位置上， 也就是说， 针对每 一种规格的 PCB, 架桥 120上均设置有相应的通孔 122; 或者， 也可以是一系列 等间距的标准孔， 该类标准孔覆盖了多种规格的 PCB所需要的通孔， 以便于加 工。 凸包 800安装在通孔 122内， 凸包 800的安装方式与实施例 1所述的安装 方式一样， 通过螺釘， 或是自身形成的铆釘结构进行固定， 当然也可以由其它 方式固定， 并不限于实施例所述的两种方式。 根据不同尺寸规格的 PCB, 将凸 包 800设置在相应位置的通孔 122上， 从而可以实现将该种尺寸的 PCB锁附到 背板上。
在本实施例中， 通孔同样可以设置在支架上， 进而提供更多的凸包安装位 置， 满足一些组件较多的背光模组。
实施例 5
在本实施例中， 背板上所使用的凸包为实施例 1所述的凸包， 如图 11所示 为一个由一整块板件加工而成的背板， 在其板面上设置有通孔 122, 通孔 122的 位置可以根据较为常用的 PCB或其他组件的尺寸设置在背板板面上的相应位置 上， 也就是说， 针对每一种规格的 PCB, 背板板面上均设置有相应的多个通孔 122,凸包 800可以根据需要选择的固定到多个通孔 122上，根据多种规格的 PCB 的尺寸， 对应的设置多个位置的孔， 使得一个背板能够适应多种尺寸的 PCB, 也避免了一些非必要的孔， 使得背板的强度不会被削弱； 或者， 也可以是一系 列等间距的标准孔， 该类标准孔覆盖了多种规格的 PCB所需要的通孔 122, 以 便于加工，凸包 800可以根据 PCB的尺寸需要选择的固定到标准孔上。凸包 800 作为一单独存在的零件安装在通孔 122内， 根据不同尺寸规格的 PCB, 将凸包 800设置在相应位置的通孔 122上， 从而可以实现将该种尺寸的 PCB锁附到背 板上。
实施例 6
在本实施中， 所使用的图标为实施 1所述的凸包， 如图 12所示为本发明第 4种实施例， 图中 A所指之处为一种旋转架桥的设置， 图 13为 A的放大图， 如 图 14中所示， 中心支架 115与右支架 112上共设置了四个相对设置的架桥 120, 架桥 120的固定端通过端部铰链 124分别与中心支架 115和右支架 112连接， 这样， 架桥 120可以相对于其与支架上的固定点（即端部铰链 124 )旋转。 如图 14所示为右支架 112上的两个架桥 120上的凸包 800的运行轨迹图， 图中圓弧 线 R表示凸包 800的运行轨迹， 直线 Ll、 L2代指不同尺寸的 PCB的固定点的 连线，如图中所示， 直线 L1与曲线 R的交点处为 PCB的固定点 A和 a的位置， 直线 L2与 R的交点处为另一种 PCB的固定点 B和 b的位置， 也就是说， 在架 桥 120的上的凸包 800的可旋转轨迹中， 提供了固定点在 A和 a位置、 B和 b 位置的两种规格的 PCB的锁附位置。 因此， 本方案可以 ^据不同尺寸的 PCB, 设置相应的凸包 800的运行轨迹， 可以同时满足多个不同尺寸的 PCB的安装， 从而可以提高背板的通用性。
另外， 如图 15所示， 为了提高架桥 120的支撑强度， 可以将两各相对的架 桥 120的自由端通过尾部铰链 125进行连接， 并在其连接处开设连接槽 127, 以 使尾部铰链 125可以在连接槽上滑动， 从而不会阻挡架桥 120的旋转； 相应的， 如图 16所示， 在架桥 120的固定端也开设横槽 126, 使端部铰链 124也可以在 横槽 126内滑动， 这样， 架桥 120整体也可以相对于端部铰链 124进行滑动， 使得架桥 120上的凸包 800的可移动轨迹不再局限于如图 14所示的圓弧线轨迹， 而是更大的面域， 从而更进一步提高背板的通用性。
在本实施例中， 架桥与支架之间的铰链连接、 架桥与架桥之间的铰链连接 可以通过螺釘或者铆釘进行连接， 使用螺釘的方式可以在完成对 PCB的锁附后 将螺釘锁紧， 提高其稳定性； 而使用铆釘则可以提高连接的可靠性。
实施例 7
根据实施例 6所述的方案， 为了获得更大的凸包可移动的范围， 还可以在 架桥上设置如实施例 1到实施例 3所述的滑槽或通孔， 并使用作为单独零件存 在的凸包。 如图 17所示， 在可选择的架桥 120上设置有滑槽 121 , 凸包 800可 以才 据需要设置在滑槽 121上的相应位置。 如图 18所示为凸包 800的可移动位 置的分析， 图中所示的阴影部分（即斜线填充部分） 为凸包 800 的可以移动区 域。 也就是说， 在使用滑槽 121后， 凸包 800的可移动位置将由原来的圓弧线 变成面区域， 从而使得背板可以适应于更多种尺寸的 PCB。
同样的， 为了提高架桥的支撑强度， 需要将其自由端连接起来， 并设置连 接槽以使架桥仍然可以旋转。 如图 19所示， 为了方便加工， 在加工滑槽 121的 时候， 将滑槽 121的长度延伸， 使滑槽 121代替连接槽的功能。
当然，也可以用滑槽 121代替实施例 4中所述的横槽的功能，如图 20所示， 滑槽 121延伸到了固定端的连接处。
在本实施例中， 架桥与支架之间的铰链连接、 架桥与架桥之间的铰链连接 可以通过螺釘或者铆釘进行连接， 使用螺釘的方式可以在完成对 PCB的锁附后 将螺釘锁紧， 提高其稳定性； 而使用铆釘则可以提高连接的可靠性。
实施例 8
如图 21所示为本发明的第 8种实施例， 与实施例 7不同的是： 在架桥 120 上设置的是通孔 122, 并在通孔 122上安装有作为单独零件存在的凸包 800, 凸 包 800可以 ^据需要设置在相应位置处的通孔 122上。 如图 22所示为凸包 800 的可移动位置的分析， 图中圓弧线 R表示凸包 800在某一位置的通孔 122上时 的可移动轨迹， 圆弧线 R1表示凸包 800在另一位置处的通孔 122上时的可移动 轨迹， 同理， 凸包 800在不同的位置的通孔 122上时， 将产生不同的可移动轨 迹。 这样， 通过在架桥 120上设置通孔 122, 也可以获得凸包 800较大的可移动 轨迹， 也就是说， 根据不同规格的 PCB , 设置相应的架桥 120的旋转位置、 通 孔 122的位置及数量使得凸包 800的可移动轨迹覆盖多种 PCB的锁附点， 从而 使得背板可以适应于多种尺寸的 PCB。
如图 23所示， 与实施例 7—样， 为了提高架桥 120的支撑强度， 需要将两 相对的架桥 120的自由端连接起来， 并设置连接槽 127用于安装尾部铰链 125 , 以使架桥仍然可以旋转。 如图 24所示， 固定端的端部铰链 124也可以设置相应 的安装横槽 126 以使架桥可以相对于端部铰链滑动， 获得更好的凸包可移动区 域。
在本实施例中， 架桥与支架之间的铰链连接、 架桥与架桥之间的铰链连接 可以通过螺釘或者铆釘进行连接， 使用螺釘的方式可以在完成对 PCB的锁附后 将螺釘锁紧， 提高其稳定性； 而使用铆釘则可以提高连接的可靠性。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替 换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种用于固定背板上的 PCB 的凸包， 所述凸包上设置有用于固定 PCB的 PCB安装孔；所述凸包的底部设置有用于将其本身安装到所述背板 上的固定结构。
2、 如权利要求 1所述的一种用于固定背板上的 PCB的凸包， 其特征 在于， 所述固定结构为凸包底部设置的螺纹孔。
3、 如权利要求 2所述的一种用于固定背板上的 PCB的凸包， 其特征 在于， 所述螺纹孔贯穿凸包。
4、 如权利要求 1所述的一种用于固定背板上的 PCB的凸包， 其特征 在于， 所述固定结构为一体设置在凸包底部的铆釘。
5、 如权利要求 1所述的一种用于固定背板上的 PCB的凸包， 其特征 在于， 所述凸包为截面呈梯形的推体结构。
6、 一种背板， 所述背板上设置有用于固定如权利要求 1所述的凸包的 凸包安装孔， 所述凸包上设置有用于固定 PCB的 PCB安装孔； 所述凸包 的底部设置有用于将其本身安装到所述背板上的固定结构。
7、 如权利要求 6所述的一种背板， 其特征在于， 所述固定结构为凸包 底部设置的螺纹孔。
8、如权利要求 7所述的一种背板，其特征在于，所述螺纹孔贯穿凸包。
9、 如权利要求 6所述的一种背板， 其特征在于， 所述固定结构为一体 设置在凸包底部的铆釘。
10、 如权利要求 6所述的一种背板， 其特征在于， 所述凸包为截面呈 梯形的推体结构。
11、 一种背光模组， 包括： 背板、 PCB板以及凸包； 所述凸包上设置 有用于固定 PCB的 PCB安装孔， 所述凸包的底部设置有用于将其本身安 装到所述背板上的固定结构， 所述背板上设置有用于固定所述凸包的凸包 安装孔， 所述凸包通过所述凸包安装孔安装到所述背板上， 所述 PCB板固 定在所述凸包上。
12、 如权利要求 11所述的一种背光模组， 其特征在于， 所述凸包的底 部通过螺釘安装在所述背板的凸包安装孔上， 所述 PCB板通过另一螺釘固 定在所述凸包上。
13、 如权利要求 11所述的一种背光模组， 其特征在于， 所述凸包设有 贯穿其本身的螺纹孔， 所述 PCB板、 凸包通过一个螺釘固定到背板上。
14、 如权利要求 11所述的一种背光模组， 其特征在于， 所述凸包通过 其本身底部的铆釘铆接到所述背板上， 所述 PCB通过螺釘固定到凸包上。
15、 如权利要求 11所述的一种背光模组， 其特征在于， 所述凸包为截 面呈梯形的推体结构。
PCT/CN2011/083248 2011-11-18 2011-11-30 用于固定背板上的pcb的凸包及背板、背光模组 WO2013071652A1 (zh)

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