CN103268738B - Patch type LED waterproof structure used for outdoor display screen - Google Patents

Patch type LED waterproof structure used for outdoor display screen Download PDF

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Publication number
CN103268738B
CN103268738B CN201310199064.4A CN201310199064A CN103268738B CN 103268738 B CN103268738 B CN 103268738B CN 201310199064 A CN201310199064 A CN 201310199064A CN 103268738 B CN103268738 B CN 103268738B
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surface mounted
mounted led
adopting surface
bucker
adopting
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CN103268738A (en
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王占明
钟涛
李鸥
陆贻秋
吴建松
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SHENZHEN YAHAM OPTOELECTRONICS CO Ltd
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SHENZHEN YAHAM OPTOELECTRONICS CO Ltd
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Abstract

A patch type LED waterproof structure used for an outdoor display screen is provided with a light-transmitting water shield approaching quadrate and a silica gel layer formed by silica gel in a pouring mode. Each two opposite faces of four shield walls of the water shield form a set, the inner side faces of a first set of shield walls are slopes, patch type LEDs are sleeved in the first set of shield walls in a tight-first-and-loose-afterward mode, and the bottoms of the inner side faces are in clearance fit with the covered patch type LEDs. The lower edges of the outer side faces of the first set of shield walls are outwards protrusive slopes which are clamping positions, fixing the water shield, of the patch type LED module mask, and the bottom edges of the protrusive slopes, namely the shield edges of the first set shield walls are attached to the surface of a PCB. The inner side faces and the outer side faces of a second set shield walls are all vertical planes, the inner side faces of the second set shield walls are in clearance fit with the shielded patch type LEDs, and clearance welding position discs are arranged on the inner side faces of the second set shield walls and used for containing LED pin bonding pads. The patch type LED waterproof structure used for the outdoor display screen is good in waterproof performance, simple in involved technologies, free of the need for special equipment, low in cost, easy and convenient to maintain or repair if a single LED is damaged, and particularly has generality.

Description

A kind of waterproof construction of the adopting surface mounted LED for outdoor display screen
Technical field
The present invention relates to water-tight device, particularly relate to a kind of waterproof construction of the adopting surface mounted LED for outdoor display screen.
Background technology
Adopt the outdoor display screen of paster type light emitting type (Light Emitting Diode, initialism is LED), in view of patch type LED structure is special, its surface requirements has good water resistance.The existing high cost possessing the adopting surface mounted LED of water-proof function is 2 ~ 3 times of the adopting surface mounted LED cost not possessing water-proof function.A large amount of waterproof method not possessing the adopting surface mounted LED of water-proof function mainly comprises the overall plated film of employing printed circuit board (Printed Circuit Board, initialism is PCB) module, and for surface mounted type LED display screen whole screen design waterproof mask.The technical sophistication that the former relates to, need specific installation, cost is high, if particularly single adopting surface mounted LED goes wrong, must entirety plated film again after repair, safeguard or maintenance complicated; And the latter is only applicable to the water-proofing treatment of the surface mounted type LED display screen of specific composition structure, not only cost is high, makes numerous and diverse, and does not possess versatility.Because adopting surface mounted LED waterproof technique is not perfect, be difficult to reach universal, real requirement, dual-in-line package (Dual In-line Package, initialism is DIP) device can not be replaced, greatly restrict the application of adopting surface mounted LED display screen out of doors.
Summary of the invention
Technical matters to be solved by this invention is the defect making up above-mentioned prior art, provides a kind of waterproof construction of the adopting surface mounted LED for outdoor display screen.
Technical matters of the present invention is solved by the following technical programs.
The waterproof construction of this adopting surface mounted LED for outdoor display screen, comprise adopting surface mounted LED module mask, described adopting surface mounted LED module mask is the integral protection face shield of the adopting surface mounted LED module that many adopting surface mounted LEDs are combined into, and the printing board PCB of adopting surface mounted LED module is arranged on the drain pan of outdoor display screen.
The feature of the waterproof construction of this adopting surface mounted LED for outdoor display screen is:
Be provided with bucker and the layer of silica gel of single adopting surface mounted LED.
Described bucker is close to square printing opacity bucker, comprises cover top and four mask wall, and described single adopting surface mounted LED is independent sealed in printing opacity bucker, to possess water resistance, reaches the object of waterproof.
The inside and outside smooth-sided compression candles on described cover top, the relative two sides of described four mask wall is one group:
The medial surface of first group of cover wall is inclined-plane, first pine is rear tight to be inserted in adopting surface mounted LED, the adopting surface mounted LED interference fit with shroud bottom medial surface, lateral surface lower edge is to evagination inclined-plane, described is the screens that adopting surface mounted LED module mask fixes bucker to evagination inclined-plane, fitting in the described base to the evagination inclined-plane i.e. cover edge of first group of cover wall and PCB surface, adopts interference fit can prevent adopting surface mounted LED and bucker from coming off and infiltrate silica gel when pouring into silica gel sealing.
The interior lateral surface of second group of cover wall is all vertical plane, the adopting surface mounted LED clearance fit that the medial surface of second group of cover wall and shroud, and the medial surface of second group of cover wall is provided with the empty avoiding pad position for holding LED pin pad, be LED pin pad below second group of cover wall, break because temperature variation produces when adopting clearance fit can prevent adopting surface mounted LED from working.
Between the cover edge that described layer of silica gel is arranged on described bucker four mask wall and the PCB surface of adopting surface mounted LED module, and between the PCB surface of adopting surface mounted LED module and adopting surface mounted LED module mask, described layer of silica gel is the sealant formed by perfusion silica gel, sealant sealing described in the cover cause of described bucker four mask wall, to strengthen water resistance further, reach the object of reliable waterproof.
Technical matters of the present invention is solved by following further technical scheme.
Described printing opacity bucker is the printing opacity bucker that penetrability is at least 90%.
Described printing opacity bucker is clear polycarbonate (Polycarbonate, initialism is PC) bucker.
The adopting surface mounted LED clearance fit that the medial surface of described second group of cover wall and shroud is that the space between the adopting surface mounted LED of the medial surface of described second group of cover wall and shroud is 0.1mm ~ 0.3mm.
The inner side port of the cover edge of described first group of cover wall is provided with chamfering, and cross section is horn-like;
The inner side port cross-sectional of the cover edge of described second group of cover wall is horn-like, and the empty avoiding pad position of the medial surface of second group of cover wall is made up of two connect ramp and ramps, the vertical plane intersection point of ramp and second group of cover wall ensures that vertical plane and adopting surface mounted LED fasten height, ramp and lower inclined plane joining are above the outer salient point of LED pin pad, lower inclined plane and cover edge intersection point ensure wall thickness 0.3mm ~ 0.5mm, ramp is the inclined-plane of empty avoiding pad position, lower inclined plane fillet surface, so that bucker shroud is assemblied in adopting surface mounted LED periphery.
Described layer of silica gel influx height is a little more than the binding face of the cover edge of bucker and the PCB of adopting surface mounted LED module, the cover cause layer of silica gel sealing of bucker four mask wall, to strengthen the water-tight performance of bucker further, reach the object of reliable waterproof, and it is good to take into account bucker printing opacity.
Technical matters of the present invention is solved by following further technical scheme.
The adopting surface mounted LED of described adopting surface mounted LED to be profile be rectangular parallelepiped.
Described silica gel is electronic seal silica gel, be have after a kind of solidification elasticity, can the monocomponent polyurethane cementing agent of joint filling, the wet in itself and air reacts and solidify to form permanent elastic material.
Described adopting surface mounted LED module mask comprises sky shade.
The present invention's beneficial effect is compared with prior art:
Waterproof construction water resistance of the present invention is good, the technology related to is simple, do not need specific installation, cost is low, if single LEDs goes wrong, safeguards or keeps in repair easy, particularly possesses versatility, universal, real requirement can be reached, the water resistance requirement of the surface mounted type LED display screen of different composition structure can be met, be conducive to adopting surface mounted LED substitute plug-in type LED out of doors display screen particularly apply in Large space high light LED display screen.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the specific embodiment of the invention;
Fig. 2 is the LED module mask screens side vertical direction cut-open view of final assembly of the specific embodiment of the invention;
Fig. 3 is the LED module mask screens side parallel direction cut-open view of final assembly of the specific embodiment of the invention.
Embodiment
Contrast accompanying drawing below in conjunction with embodiment the present invention will be described.
A kind of profile for outdoor display screen is as shown in Figures 1 to 3 the waterproof construction of the adopting surface mounted LED 7 of rectangular parallelepiped, comprise adopting surface mounted LED module mask 8, adopting surface mounted LED module mask 8 is the integral protection face shields of the adopting surface mounted LED module that many adopting surface mounted LEDs are combined into, comprise sky shade 9, sky shade 9 is not only for keeping the sun off and intense direct illumination, and for the direct shower of rain cover, the PCB10 of adopting surface mounted LED module is arranged on the drain pan 11 of outdoor display screen.
Be provided with bucker and the layer of silica gel 12 of single adopting surface mounted LED 7.
Bucker be at least close to square penetrability 90% printing opacity PC bucker, comprise cover top and four mask wall of inside and outside smooth-sided compression candles, single adopting surface mounted LED 7 is independent sealed in printing opacity PC bucker, to possess water resistance, reaches the object of waterproof.
The relative two sides of four mask wall is one group:
The medial surface of first group of cover wall 2 is inclined-planes, first pine is rear tight to be inserted in adopting surface mounted LED 7, adopting surface mounted LED 7 interference fit with shroud bottom medial surface, lateral surface lower edge is to evagination inclined-plane, the screens that adopting surface mounted LED module mask 8 fixes bucker to evagination inclined-plane, fit to the base i.e. cover edge of first group of cover wall on evagination inclined-plane and PCB10 surface, adopt interference fit can prevent adopting surface mounted LED 7 and bucker from coming off and infiltrating silica gel when pouring into silica gel sealing.
The interior lateral surface of second group of cover wall 1 is all vertical plane, adopting surface mounted LED 7 clearance fit that the medial surface of second group of cover wall 1 and shroud, space between the adopting surface mounted LED 7 that the medial surface of second group of cover wall 1 and shroud is 0.1mm, and the medial surface of second group of cover wall 1 is provided with the empty avoiding pad position 6 for holding LED pin pad 13, be LED pin pad 13 below the cover edge of second group of cover wall 1, break because temperature variation produces when adopting clearance fit can prevent adopting surface mounted LED 7 from working.
The inner side port of the cover edge of first group of cover wall 2 is provided with chamfering 5, and cross section is horn-like;
The inner side port cross-sectional of the cover edge of second group of cover wall 1 is horn-like, and the empty avoiding pad position 6 of the medial surface of second group of cover wall 1 is made up of two connect ramp 3 and lower inclined planes 4, the vertical plane intersection point of ramp 3 and second group of cover wall 1 ensures that vertical plane and adopting surface mounted LED 7 fasten height, ramp 3 and lower inclined plane 4 joining are above the outer salient point of LED pin pad 13, lower inclined plane 4 and cover edge intersection point ensure bucker wall thickness 0.3mm ~ 0.5mm, ramp 3 is inclined-planes of empty avoiding pad position 6, lower inclined plane 4 is fillet surfaces, so that it is peripheral that bucker shroud is assemblied in adopting surface mounted LED 7.
Between the cover edge that layer of silica gel 12 is arranged on bucker four mask wall and the PCB10 surface of adopting surface mounted LED module, and between the PCB10 surface of adopting surface mounted LED module and adopting surface mounted LED module mask 8, layer of silica gel 12 is the sealants formed by perfusion silica gel, , after a kind of solidification, there is elasticity, can the monocomponent polyurethane cementing agent of joint filling, wet in itself and air reacts and solidify to form permanent elastic material, layer of silica gel 12 influx height is a little more than the binding face of the cover edge of bucker and the PCB10 of adopting surface mounted LED module, the cover cause layer of silica gel 12 of bucker four mask wall seals, to strengthen the water-tight performance of bucker further, reach the object of reliable waterproof, and it is good to take into account bucker printing opacity.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention; make some equivalent alternative or obvious modification without departing from the inventive concept of the premise; and performance or purposes identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.

Claims (6)

1. the waterproof construction for the adopting surface mounted LED of outdoor display screen, comprise adopting surface mounted LED module mask, described adopting surface mounted LED module mask is the integral protection face shield of the adopting surface mounted LED module that many adopting surface mounted LEDs are combined into, the printing board PCB of adopting surface mounted LED module is arranged on the drain pan of outdoor display screen, it is characterized in that:
Be provided with bucker and the layer of silica gel of single adopting surface mounted LED;
Described bucker is close to square printing opacity bucker, comprises cover top and four mask wall, and described single adopting surface mounted LED is independent sealed in printing opacity bucker;
The inside and outside smooth-sided compression candles on described cover top, the relative two sides of described four mask wall is one group:
The medial surface of first group of cover wall is inclined-plane, first pine is rear tight to be inserted in adopting surface mounted LED, the adopting surface mounted LED interference fit with shroud bottom medial surface, lateral surface lower edge is to evagination inclined-plane, described is the screens that adopting surface mounted LED module mask fixes bucker to evagination inclined-plane, the described base to the evagination inclined-plane i.e. inner side port of the cover edge of first group of cover wall is provided with chamfering, and cross section is horn-like, fits with PCB surface;
The interior lateral surface of second group of cover wall is all vertical plane, the adopting surface mounted LED clearance fit that the medial surface of second group of cover wall and shroud, space between the adopting surface mounted LED that the medial surface of described second group of cover wall and shroud is 0.1mm ~ 0.3mm, the inner side port cross-sectional of the cover edge of described second group of cover wall is horn-like, and the medial surface of second group of cover wall is provided with the empty avoiding pad position for holding LED pin pad, described empty avoiding pad position is made up of two connect ramp and ramps, the vertical plane intersection point of ramp and second group of cover wall ensures that vertical plane and adopting surface mounted LED fasten height, ramp and lower inclined plane joining are above the outer salient point of LED pin pad, lower inclined plane and cover edge intersection point ensure wall thickness 0.3mm ~ 0.5mm, ramp is the inclined-plane of empty avoiding pad position, lower inclined plane is fillet surface, so that bucker shroud is assemblied in adopting surface mounted LED periphery,
Between the cover edge that described layer of silica gel is arranged on described bucker four mask wall and the PCB surface of adopting surface mounted LED module, and between the PCB surface of adopting surface mounted LED module and adopting surface mounted LED module mask, described layer of silica gel is the sealant formed by perfusion silica gel, layer of silica gel influx height a little more than the binding face of the cover edge of bucker and the PCB of adopting surface mounted LED module, sealant sealing described in the cover cause of described bucker four mask wall.
2., as claimed in claim 1 for the waterproof construction of the adopting surface mounted LED of outdoor display screen, it is characterized in that:
Described printing opacity bucker is the printing opacity bucker that penetrability is at least 90%.
3., as claimed in claim 1 or 2 for the waterproof construction of the adopting surface mounted LED of outdoor display screen, it is characterized in that:
Described printing opacity bucker is clear polycarbonate PC bucker.
4., as claimed in claim 1 for the waterproof construction of the adopting surface mounted LED of outdoor display screen, it is characterized in that:
The adopting surface mounted LED of described adopting surface mounted LED to be profile be rectangular parallelepiped.
5., as claimed in claim 1 for the waterproof construction of the adopting surface mounted LED of outdoor display screen, it is characterized in that:
Described silica gel is electronic seal silica gel, be have after a kind of solidification elasticity, can the monocomponent polyurethane cementing agent of joint filling, the wet in itself and air reacts and solidify to form permanent elastic material.
6., as claimed in claim 1 for the waterproof construction of the adopting surface mounted LED of outdoor display screen, it is characterized in that:
Described adopting surface mounted LED module mask comprises sky shade.
CN201310199064.4A 2013-05-27 2013-05-27 Patch type LED waterproof structure used for outdoor display screen Active CN103268738B (en)

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US8974077B2 (en) 2012-07-30 2015-03-10 Ultravision Technologies, Llc Heat sink for LED light source
US9195281B2 (en) 2013-12-31 2015-11-24 Ultravision Technologies, Llc System and method for a modular multi-panel display
US9582237B2 (en) 2013-12-31 2017-02-28 Ultravision Technologies, Llc Modular display panels with different pitches
US9311847B2 (en) 2014-07-16 2016-04-12 Ultravision Technologies, Llc Display system having monitoring circuit and methods thereof

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Publication number Priority date Publication date Assignee Title
CN101294700A (en) * 2008-05-23 2008-10-29 北京星光影视设备科技股份有限公司 Paster LED outdoor water-proof module group
CN201417578Y (en) * 2009-04-20 2010-03-03 深圳蓝普科技有限公司 LED protection cover and LED display screen
CN201893373U (en) * 2010-11-03 2011-07-06 熊周成 LED (Light-Emitting Diode) packaging structure and LED light-emitting display module
CN202067471U (en) * 2011-05-09 2011-12-07 邓艳阳 Outdoor LED (light-emitting diode) display module
CN203325368U (en) * 2013-05-27 2013-12-04 深圳市大族元亨光电股份有限公司 Patch type LED waterproof structure for outdoor display screen

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JP2000114605A (en) * 1998-10-07 2000-04-21 Matsushita Electronics Industry Corp Led display

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101294700A (en) * 2008-05-23 2008-10-29 北京星光影视设备科技股份有限公司 Paster LED outdoor water-proof module group
CN201417578Y (en) * 2009-04-20 2010-03-03 深圳蓝普科技有限公司 LED protection cover and LED display screen
CN201893373U (en) * 2010-11-03 2011-07-06 熊周成 LED (Light-Emitting Diode) packaging structure and LED light-emitting display module
CN202067471U (en) * 2011-05-09 2011-12-07 邓艳阳 Outdoor LED (light-emitting diode) display module
CN203325368U (en) * 2013-05-27 2013-12-04 深圳市大族元亨光电股份有限公司 Patch type LED waterproof structure for outdoor display screen

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Inventor after: Wang Zhanming

Inventor after: Zhong Tao

Inventor after: Li Ou

Inventor after: Lu Yiqiu

Inventor after: Wu Jiansong

Inventor before: Wang Zhanming

Inventor before: Zhong Tao

Inventor before: Li Ou

Inventor before: Lu Yiqiu

Inventor before: Wu Jiansong

C10 Entry into substantive examination
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GR01 Patent grant
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Address after: 518100, 1st and 6th floors of Building A, 1st and 3rd floors of Building B, and 1st and 2nd floors of Building D, Yongwei Industrial Park, No. 118 Yongfu Road, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen City, Guangdong Province

Patentee after: Shenzhen Yaham Optoelectronics Co.,Ltd.

Country or region after: China

Address before: Building 4, Dahu Laser Industrial Park, No. 128 Fuyong Chongqing Road, Bao'an District, Shenzhen City, Guangdong Province, 518103

Patentee before: YAHAM OPTOELECTRONICS Co.,Ltd.

Country or region before: China