WO2020042578A1 - 防水显示屏模组 - Google Patents

防水显示屏模组 Download PDF

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Publication number
WO2020042578A1
WO2020042578A1 PCT/CN2019/077202 CN2019077202W WO2020042578A1 WO 2020042578 A1 WO2020042578 A1 WO 2020042578A1 CN 2019077202 W CN2019077202 W CN 2019077202W WO 2020042578 A1 WO2020042578 A1 WO 2020042578A1
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WO
WIPO (PCT)
Prior art keywords
sealant layer
led lamp
seal
lamp beads
display module
Prior art date
Application number
PCT/CN2019/077202
Other languages
English (en)
French (fr)
Inventor
贺金锋
邓新汉
Original Assignee
深圳市洲明科技股份有限公司
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.)
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Application filed by 深圳市洲明科技股份有限公司 filed Critical 深圳市洲明科技股份有限公司
Publication of WO2020042578A1 publication Critical patent/WO2020042578A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements

Definitions

  • the utility model relates to the technical field of display screens, in particular to a waterproof display module.
  • the display module In order to make the display module have a certain waterproof effect, the display module is usually filled with glue, and the effect of the glue directly affects the overall display effect of the display module.
  • the lamp surface In the prior art, the lamp surface is mostly glued and sealed, and the driving surface is not glued. When the ambient temperature changes greatly, the display module may be significantly deformed. After the lamp surface is glued, A layer of sealant will also be formed on the light-emitting surface of the lamp beads, which will affect the light-emitting efficiency of the lamp beads to a certain extent, and you can see the background color of the PCB board, which affects the viewing effect; the glue will dry for a long time after sealing , Will seriously affect production efficiency.
  • a seal ring is generally designed at the position of the cable connector, and the connector is fixed by screws, and its waterproof effect is difficult to ensure.
  • the technical problem to be solved by the utility model is to provide a waterproof display module with good waterproof effect.
  • a waterproof display module includes a display component, the display component includes a PCB board, a driving element, and at least two LED lamp beads, and at least two of the LED lamp beads are arranged on a side of the PCB board at intervals.
  • the driving element is disposed on the other side of the PCB board away from the LED lamp beads, and the PCB board is provided with a first sealant layer on a side surface on which the LED lamp beads are disposed, and the first sealant The thickness of the layer is less than or equal to the thickness of the light emitting surface of the LED lamp beads, and the PCB is provided with a second sealant layer on a side surface on which the driving element is provided.
  • a box assembly is further included, the box assembly includes a box and a plug, the plug is fixedly disposed on the box, and the display assembly further includes a socket matched with the plug, and the socket It is arranged on the side of the PCB board far from the LED lamp beads.
  • the display module is provided with a first seal, and the box is provided with a second seal that cooperates with the first seal. The first seal and the second seal form a closed receiving cavity, and the plug and the socket are both located in the receiving cavity.
  • an elastic abutting portion is provided on an edge of the first seal, and the abutting portion abuts an inner sidewall of the second seal.
  • a through hole is provided on the PCB, and a third sealant layer is provided in the through hole, and the third sealant layer is integrally injection-molded with the first sealant layer and the second sealant layer.
  • the materials of the first sealant layer and the second sealant layer are both thermoplastic elastomer materials.
  • first sealant layer and the second sealant layer are made of at least one of TPE, TPU, TPR, and silicone rubber.
  • a side of the first sealant layer away from the PCB is a matte surface.
  • the beneficial effect of the utility model is that by providing a sealing rubber layer on the bead surface and the driving surface of the LED lamp, the waterproof effect is good, and when the ambient temperature changes greatly, it will not cause obvious deformation of the display module. Extend the service life of the display module; the thickness of the first sealant layer is less than or equal to the thickness of the light emitting surface of the LED lamp beads, which will not affect the light emitting efficiency of the LED lamp beads.
  • FIG. 1 is a schematic diagram of the overall structure of a waterproof display module according to a first embodiment of the present invention
  • FIG. 2 is a structural exploded view of a waterproof display module according to the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view at A-A of Figure 2;
  • Figure 4 is a sectional view at B-B of Figure 2;
  • FIG. 5 is a cross-sectional view at C-C of FIG. 2;
  • Fig. 6 is a sectional view of Fig. 1 at D-D.
  • a first sealant layer is provided on one side of the PCB board on which the LED lamp beads are disposed, and the height value of the first sealant layer is less than or equal to the height value of the light emitting surface of the LED lamp beads.
  • a second sealant layer is provided on one side of the PCB board on which the driving element is provided, which not only has a better waterproof effect, but also does not affect the luminous efficiency of the LED lamp beads.
  • a waterproof display module includes a display component 1.
  • the display component 1 includes a PCB board 11, a driving element 12, and at least two LED lamp beads 14.
  • the LED lamp beads 14 are disposed on one side of the PCB board 11 at intervals, the driving element 12 is disposed on the other side of the PCB board 11 away from the LED lamp beads 14, and the PCB board 11 is provided with the LED lights.
  • a first sealant layer 15 is provided on one side of the bead 14, and the thickness of the first sealant layer 15 is less than or equal to the thickness of the light-emitting surface of the LED lamp bead 14.
  • a second sealant layer 16 is provided on one side.
  • the beneficial effect of the present utility model is that by providing a sealant layer on the bead surface and the driving surface of the LED lamp, the waterproof effect is good, and the display module will not be caused when the ambient temperature changes greatly.
  • the obvious deformation can extend the service life of the display module; the thickness of the first sealant layer is less than or equal to the thickness of the light emitting surface of the LED lamp beads, and does not affect the light emitting efficiency of the LED lamp beads.
  • a box assembly 2 is further included.
  • the box assembly 2 includes a box 21 and a plug 22, the plug 22 is fixedly disposed on the box 21, and the display assembly 1 further includes a plug 22
  • a matching socket 13 is provided on a side of the PCB board 11 away from the LED lamp beads 14.
  • a first seal 19 is provided on the display module 1, and a housing 21 is provided with A second seal 23 matching the first seal 19, the first seal 19 and the second seal 23 enclose a closed receiving cavity 3, and the plug 22 and the socket 13 are both located in the receiving cavity 3 within.
  • an elastic abutting portion 191 is provided on an edge of the first seal 19, and the abutting portion 191 abuts the inner sidewall of the second seal 23.
  • the display module can work normally under water or even under high pressure.
  • a through hole is provided on the PCB board 11, and a third sealant layer 17 is provided in the through hole, the third sealant layer 17 and the first sealant layer 15 and the second sealant.
  • the layer 16 is provided integrally by injection molding.
  • the first sealant layer and the second sealant layer can be formed by one-shot injection molding, and the molding time is short and the efficiency is high.
  • first sealant layer 15 and the second sealant layer 16 are both thermoplastic elastomer materials.
  • first sealant layer 15 and the second sealant layer 16 are made of at least one of TPE, TPU, TPR, and silicone rubber.
  • the materials of the first sealant layer and the second sealant layer can be set as required.
  • a side of the first sealant layer away from the PCB is a matte surface.
  • the matte surface can form diffuse reflection, so that the surface of the first sealant layer has a uniform appearance.
  • the first embodiment of the present invention is:
  • a waterproof display module includes a display component 1 and a cabinet component 2.
  • the display assembly 1 includes a PCB board 11, a driving element 12, a socket 13, and at least two LED lamp beads 14, and at least two of the LED lamp beads 14 are disposed at intervals.
  • the driving element 12 and the socket 13 are disposed on the other side of the PCB board 11 away from the LED lamp beads 14.
  • One side of the PCB board 11 on which the LED lamp beads 14 are disposed is provided.
  • the first sealant layer 15 has a thickness less than or equal to the thickness of the light emitting surface of the LED lamp beads 14, and a second seal is provided on one side of the PCB board 11 on which the driving element 12 and the socket 13 are provided. ⁇ 16 ⁇ The rubber layer 16.
  • a through hole is provided on the PCB board 11, and a third sealant layer 17 is provided in the through hole.
  • the third sealant layer 17 is integrated with the first and second sealant layers 15 and 16. Injection molding settings. After molding, a groove 18 will be formed between two adjacent LED lamp beads 14.
  • the surface of the first sealant layer 15 (the side away from the PCB board 11) can be designed as a matte surface to form a diffuse reflection so that the first The surface appearance of the sealant layer 15 is uniform.
  • the materials of the first sealant layer 15 and the second sealant layer 16 are both thermoplastic elastomer materials.
  • they can be at least one of TPE, TPU, TPR, and silicone rubber.
  • the box assembly 2 includes a box 21 and a plug 22 mated with the socket 13.
  • the plug 22 is fixed on the box 21.
  • it may also be in the form of wrapping the PCB board 11 around, or combining the via with the surrounding PCB board 11 and so on. .
  • the display assembly 1 is provided with a first seal 19, and the box 21 is provided with a second seal 23 that cooperates with the first seal 19, and the first seal 19 and the second sealing member 23 form a closed receiving cavity 3, and the plug 22 and the socket 13 are both located in the receiving cavity 3.
  • an elastic abutting portion 191 is provided on the edge of the first seal 19. As shown in FIG. 6, the abutting portion 191 abuts the inner side wall of the second seal 23 and the abutting portion 191
  • the material of is a deformable material and needs to have a certain strength.
  • the first seal 19 is equivalent to a flange structure.
  • the outer diameter of the resisting portion 191 is larger than the inner diameter of the second seal 23, so that an interference fit is formed between the resisting portion 191 and the second seal 23.
  • the first seal 19 passes through the resisting portion 191.
  • a closed receiving space is enclosed between the elastic deformation and the second seal 23.
  • the waterproof display module provided by the present utility model has a simple structure, good waterproof effect, and does not cause obvious deformation of the display module when the ambient temperature changes greatly, and can be under water or even under high pressure. Work properly in the environment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

一种防水显示屏模组，包括显示组件(1)，显示组件(1)包括PCB板(11)、驱动元件(12)和至少两个的LED灯珠(14)，至少两个的LED灯珠(14)间隔设置于PCB板(11)的一侧面上，驱动元件(12)设置于PCB板(11)远离LED灯珠(14)的另一侧面上，PCB板(11)于设有LED灯珠(14)的一侧面上设有第一密封胶层(15) ，第一密封胶层(15)的厚度小于或等于LED灯珠(14)的发光面的厚度，PCB板(11)于设有驱动元件(12)的一侧面上设有第二密封胶层(16)。防水显示屏模组结构简单，防水效果好，环境温度变化较大时也不会引起显示屏模组的明显变形，可以在水下甚至高压环境下正常工作。

Description

防水显示屏模组 技术领域
本实用新型涉及显示屏技术领域，尤其涉及一种防水显示屏模组。
 背景技术
为了使显示屏模组具有一定的防水效果，通常会对显示屏模组进行灌胶，灌胶的效果直接影响着显示屏模组的整体显示效果。现有技术中大多只是对灯面进行灌胶密封，对驱动面不做灌胶处理，当环境温度变化较大时，可能会引起显示屏模组的明显变形；在对灯面进行灌胶后，在灯珠的发光面上也会形成一层密封胶，这会在一定程度上影响灯珠的发光效率，并且可以看见PCB板底色，影响观看效果；密封灌胶后胶水晾干时间长，会严重影响生产效率。并且现有的显示屏模组一般会在线缆接头位置设计密封圈，并通过螺钉固定接头，其防水效果难以保证。
 技术问题
本实用新型所要解决的技术问题是：提供一种防水显示屏模组，其防水效果好。
 技术解决方案
为了解决上述技术问题，本实用新型采用的技术方案为：
一种防水显示屏模组，包括显示组件，所述显示组件包括PCB板、驱动元件和至少两个的LED灯珠，至少两个的所述LED灯珠间隔设置于所述PCB板的一侧面上，所述驱动元件设置于所述PCB板远离LED灯珠的另一侧面上，PCB板于设有所述LED灯珠的一侧面上设有第一密封胶层，所述第一密封胶层的厚度小于或等于LED灯珠的发光面的厚度，PCB板于设有所述驱动元件的一侧面上设有第二密封胶层。
进一步的，还包括箱体组件，所述箱体组件包括箱体和插头，所述插头固定设置于所述箱体上，所述显示组件还包括与所述插头相配合的插座，所述插座设置于所述PCB板远离LED灯珠的一侧面上，所述显示组件上设有第一密封件，所述箱体上设有与所述第一密封件相配合的第二密封件，所述第一密封件与第二密封件围成密闭的容纳腔，所述插头和插座均位于所述容纳腔内。
进一步的，所述第一密封件的边缘设有弹性的抵持部，所述抵持部抵持所述第二密封件的内侧壁。
进一步的，所述PCB板上设有通孔，所述通孔内设有第三密封胶层，所述第三密封胶层与所述第一密封胶层和第二密封胶层一体注射成型设置。
进一步的，所述第一密封胶层和第二密封胶层的材质均为热塑性弹性体材料。
进一步的，所述第一密封胶层和第二密封胶层的材质均为TPE、TPU、TPR和硅橡胶中的至少一种。
进一步的，所述第一密封胶层远离PCB板的一侧面为哑光面。
 有益效果
本实用新型的有益效果在于：通过在LED灯珠面和驱动面上分别设置密封胶层，其防水效果好，并且当环境温度变化较大时，不会引起显示屏模组的明显变形，可以延长显示屏模组的使用寿命；第一密封胶层的厚度小于或等于LED灯珠的发光面的厚度，不会影响LED灯珠的发光效率。
 附图说明
图1为本实用新型实施例一的防水显示屏模组的整体结构示意图；
图2为本实用新型实施例一的防水显示屏模组的结构爆炸图；
图3为图2在A-A处的剖视图；
图4为图2在B-B处的剖视图；
图5为图2在C-C处的剖视图；
图6为图1在D-D处的剖视图。
标号说明：
1、显示组件；11、PCB板；12、驱动元件；13、插座；14、LED灯珠；15、第一密封胶层；16、第二密封胶层；17、第三密封胶层；18、凹槽；19、第一密封件；191、抵持部；
2、箱体组件；21、箱体；22、插头；23、第二密封件；3、容纳腔。
 本发明的实施方式
为详细说明本实用新型的技术内容、所实现目的及效果，以下结合实施方式并配合附图予以说明。
本实用新型最关键的构思在于：设置LED灯珠的PCB板的一侧面上设有第一密封胶层，所述第一密封胶层的高度值小于或等于LED灯珠的发光面的高度值，设置驱动元件的PCB板的一侧面上设有第二密封胶层，既具有较好的防水效果，又不会影响LED灯珠的发光效率。
请参照图1至图6，一种防水显示屏模组，包括显示组件1，所述显示组件1包括PCB板11、驱动元件12和至少两个的LED灯珠14，至少两个的所述LED灯珠14间隔设置于所述PCB板11的一侧面上，所述驱动元件12设置于所述PCB板11远离LED灯珠14的另一侧面上，PCB板11于设有所述LED灯珠14的一侧面上设有第一密封胶层15，所述第一密封胶层15的厚度小于或等于LED灯珠14的发光面的厚度，PCB板11于设有所述驱动元件12的一侧面上设有第二密封胶层16。
从上述描述可知，本实用新型的有益效果在于：通过在LED灯珠面和驱动面上分别设置密封胶层，其防水效果好，并且当环境温度变化较大时，不会引起显示屏模组的明显变形，可以延长显示屏模组的使用寿命；第一密封胶层的厚度小于或等于LED灯珠的发光面的厚度，不会影响LED灯珠的发光效率。
进一步的，还包括箱体组件2，所述箱体组件2包括箱体21和插头22，所述插头22固定设置于所述箱体21上，所述显示组件1还包括与所述插头22相配合的插座13，所述插座13设置于所述PCB板11远离LED灯珠14的一侧面上，所述显示组件1上设有第一密封件19，所述箱体21上设有与所述第一密封件19相配合的第二密封件23，所述第一密封件19与第二密封件23围成密闭的容纳腔3，所述插头22和插座13均位于所述容纳腔3内。
由上述描述可知，将插头和插座设置在第一密封件和第二密封件围成的密闭容纳腔内，可以进一步提高显示屏模组的防水效果，延长其使用寿命。
进一步的，所述第一密封件19的边缘设有弹性的抵持部191，所述抵持部191抵持所述第二密封件23的内侧壁。
由上述描述可知，通过在第一密封件的边缘设置抵持部，当外界压力增大时，外界与容纳腔内的压力差也会增大，会使第一密封件的抵持部与第二密封件接触面压合得更加紧密，防水效果更好，显示屏模组可以在水下甚至高压环境下正常工作。
进一步的，所述PCB板11上设有通孔，所述通孔内设有第三密封胶层17，所述第三密封胶层17与所述第一密封胶层15和第二密封胶层16一体注射成型设置。
由上述描述可知，可以采用一次注射成型的方式成型第一密封胶层和第二密封胶层，成型时间短，效率高。
进一步的，所述第一密封胶层15和第二密封胶层16的材质均为热塑性弹性体材料。
进一步的，所述第一密封胶层15和第二密封胶层16的材质均为TPE、TPU、TPR和硅橡胶中的至少一种。
由上述描述可知，第一密封胶层和第二密封胶层的材质可以根据需要进行设置。
进一步的，所述第一密封胶层远离PCB板的一侧面为哑光面。
由上述描述可知，哑光面可以形成漫反射，使第一密封胶层表面观感均匀一致。
请参照图1至图6，本实用新型的实施例一为：
一种防水显示屏模组，如图1和图2所示，包括显示组件1和箱体组件2。如图3至图5所示，所述显示组件1包括PCB板11、驱动元件12、插座13和至少两个的LED灯珠14，至少两个的所述LED灯珠14间隔设置于所述PCB板11的一侧面上，所述驱动元件12和插座13均设置于所述PCB板11远离LED灯珠14的另一侧面上，设置LED灯珠14的PCB板11的一侧面上设有第一密封胶层15，所述第一密封胶层15的厚度小于或等于LED灯珠14的发光面的厚度，设置驱动元件12和插座13的PCB板11的一侧面上设有第二密封胶层16。所述PCB板11上设有通孔，所述通孔内设有第三密封胶层17，所述第三密封胶层17与所述第一密封胶层15和第二密封胶层16一体注射成型设置。成型后，相邻两个LED灯珠14之间会形成凹槽18，第一密封胶层15的表面（远离PCB板11的一侧面）可以设计为哑光面，形成漫反射，使第一密封胶层15表面观感均匀一致。本实施例中，所述第一密封胶层15和第二密封胶层16的材质均为热塑性弹性体材料，例如可以是TPE、TPU、TPR和硅橡胶中的至少一种，当然也可以是其他可变形的橡胶材料。所述箱体组件2包括箱体21和与所述插座13相配合的插头22，所述插头22固定设置于所述箱体21上。当然，除了采用过孔的方式使第一密封胶层15和第二密封胶层16一体注射成型，还可以采用四周包裹PCB板11的形式，或者过孔与四周包裹PCB板11相结合等方式。本实施例中，所述显示组件1上设有第一密封件19，所述箱体21上设有与所述第一密封件19相配合的第二密封件23，所述第一密封件19与第二密封件23围成密闭的容纳腔3，所述插头22和插座13均位于所述容纳腔3内。优选的，所述第一密封件19的边缘设有弹性的抵持部191，如图6所示，所述抵持部191抵持所述第二密封件23的内侧壁，抵持部191的材质为可变形材料，并且需要具备一定的强度，第一密封件19相当于一个法兰结构。本实施例中，抵持部191的外径大于第二密封件23的内径，使得抵持部191与第二密封件23之间形成过盈配合，第一密封件19通过抵持部191的弹性变形与第二密封件23之间围成密闭的容纳腔。当外界压力增大时，外界与容纳腔3内的压力差也会增大，会使第一密封件19的抵持部191与第二密封件23接触面压合得更加紧密，防水效果更好，显示屏模组可以在水下甚至高压环境下正常工作。
综上所述，本实用新型提供的一种防水显示屏模组，其结构简单，防水效果好，环境温度变化较大时也不会引起显示屏模组的明显变形，可以在水下甚至高压环境下正常工作。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等同变换，或直接或间接运用在相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (7)

  1. 一种防水显示屏模组，包括显示组件，所述显示组件包括PCB板、驱动元件和至少两个的LED灯珠，至少两个的所述LED灯珠间隔设置于所述PCB板的一侧面上，所述驱动元件设置于所述PCB板远离LED灯珠的另一侧面上，其特征在于，PCB板于设有所述LED灯珠的一侧面上设有第一密封胶层，所述第一密封胶层的厚度小于或等于LED灯珠的发光面的厚度，PCB板于设有所述驱动元件的一侧面上设有第二密封胶层。
  2. 根据权利要求1所述的防水显示屏模组，其特征在于，还包括箱体组件，所述箱体组件包括箱体和插头，所述插头固定设置于所述箱体上，所述显示组件还包括与所述插头相配合的插座，所述插座设置于所述PCB板远离LED灯珠的一侧面上，所述显示组件上设有第一密封件，所述箱体上设有与所述第一密封件相配合的第二密封件，所述第一密封件与第二密封件围成密闭的容纳腔，所述插头和插座均位于所述容纳腔内。
  3. 根据权利要求2所述的防水显示屏模组，其特征在于，所述第一密封件的边缘设有弹性的抵持部，所述抵持部抵持所述第二密封件的内侧壁。
  4. 根据权利要求1所述的防水显示屏模组，其特征在于，所述PCB板上设有通孔，所述通孔内设有第三密封胶层，所述第三密封胶层与所述第一密封胶层和第二密封胶层一体注射成型设置。
  5. 根据权利要求1所述的防水显示屏模组，其特征在于，所述第一密封胶层和第二密封胶层的材质均为热塑性弹性体材料。
  6. 根据权利要求5所述的防水显示屏模组，其特征在于，所述第一密封胶层和第二密封胶层的材质均为TPE、TPU、TPR和硅橡胶中的至少一种。
  7. 根据权利要求1所述的防水显示屏模组，其特征在于，所述第一密封胶层远离PCB板的一侧面为哑光面。
PCT/CN2019/077202 2018-08-31 2019-03-06 防水显示屏模组 WO2020042578A1 (zh)

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