CN210691896U

CN210691896U - Lifting type LED rolling screen

Info

Publication number: CN210691896U
Application number: CN201922489945.5U
Authority: CN
Inventors: 罗建成; 李心灵; 罗小月; 罗星
Original assignee: Shenzhen Scenico Optoelectronic Co ltd
Current assignee: Shenzhen Scenico Optoelectronic Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-06-05
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses an over-and-under type LED rolls up curtain screen, including rolling up the curtain motor and hanging the roll up curtain screen on rolling up the curtain motor, roll up the curtain screen and include a plurality of flexible display screens of rolling up curtain motor axial connection along, flexible display screen includes that a plurality of being are listed as the display module group of arranging together, and the front of a plurality of display module groups is passed through the flexible steel mesh and is connected, and its back is connected through two at least flexible connection piece. The utility model discloses a flexonics that display module assembly was realized to flexible steel mesh and flexonics piece has simplified the connection structure between the display module assembly greatly, has reduced the complexity of LED roll screen structure, and the LED of being convenient for rolls up the rolling and the expansion of screen.

Description

Lifting type LED rolling screen

Technical Field

The utility model relates to a technical field of LED display screen, in particular to over-and-under type LED rolls up curtain screen.

Background

As a novel LED display screen, the LED rolling screen is generally used for advertising. The existing LED rolling screen is generally spliced together by a plurality of module screens through a rotating shaft piece or other rotating mechanisms, and the size of the whole rolling screen can be increased or decreased according to the requirements of a site. Because the rotating mechanism is adopted for connection, the connection structure between the module screens is complex, the assembly is inconvenient, and the complexity of the roller shutter screen is increased.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model aims at providing an over-and-under type LED rolls up curtain screen.

In order to achieve the above object, the utility model provides an over-and-under type LED rolls up curtain screen, including roll up the curtain motor with hang in roll up the last roll of curtain screen of curtain motor, roll up the curtain screen and include a plurality of flexible display screen of rolling up curtain motor axial connection along, flexible display screen includes that a plurality of being are to be listed as the display module group of arranging together, and is a plurality of the front of display module group is connected through flexible steel mesh, and is a plurality of the back of display module group is connected through two at least flexible connection piece.

The flexible steel net is configured to be capable of being rolled or unfolded along the arrangement direction of the display module. The flexible connecting sheet is connected with two adjacent display modules at two ends, one end of the flexible connecting sheet is fixed on one of the display modules, the other end of the flexible connecting sheet is provided with a waist-shaped hole arranged along the arrangement direction of the display modules, and the flexible connecting sheet is fixed on the other display module through a screw which transversely penetrates through the waist-shaped hole.

Optionally, the flexible steel mesh is machined with CNC.

Optionally, the flexible steel mesh includes at least one bent portion and connecting portions disposed at two sides of the bent portion.

Optionally, a plurality of screw holes are formed in the flexible steel mesh, and the flexible steel mesh is fixed to the front surface of the LED display screen through screws penetrating through the screw holes.

Optionally, the thickness of the flexible steel mesh is 0.3 mm.

Optionally, the display module assembly includes the plastic casing, and sets up the positive PCB board of plastic casing, the equal embedment bi-component epoxy glue of tow sides of PCB board.

Optionally, the front of PCB board is equipped with the PC plastic mask, be equipped with the dodging hole that supplies the positive LED of PCB board to expose on the PC plastic mask, just the top facing of PC plastic mask is higher than the plane that LED light emitting area belonged to.

Compared with the prior art, the beneficial effects of the utility model reside in that: the flexible connection of the display module is realized through the flexible steel mesh and the flexible connecting sheet, so that the connection structure between the display modules is greatly simplified, the complexity of the LED roller shutter screen structure is reduced, and the LED roller shutter screen is convenient to wind and unfold.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the lifting type LED rolling screen of the present invention;

FIG. 2 is a schematic view of a back side of an embodiment of a rolling screen;

FIG. 3 is a schematic front view of an embodiment of a flexible display;

FIG. 4 is a schematic diagram of a back structure of an embodiment of a flexible display;

FIG. 5 is a schematic view of the structure of the flexible steel net;

FIG. 6 is a schematic view of two adjacent display modules connected by a flexible steel mesh;

FIG. 7 is a schematic front view of a display module;

fig. 8 is a schematic structural view of a PC plastic mask.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawing 1, an embodiment of the present invention provides a lifting LED roller blind, which includes a roller blind motor 100 and a roller blind 200 suspended on the roller blind motor 100. When the rolling motor 100 rotates, the rolling screen 200 can be lifted up and rolled on the rolling motor 100 or the rolling screen 200 can be lowered and unfolded into a planar state. A stopper is provided in the roll motor 100 to set a winding and descending stroke of the roll screen 200. The two ends of the roller shutter motor 100 are provided with mounting plates 110, and mounting holes 111 are reserved on the mounting plates 110, so that the roller shutter 200 can be conveniently and rapidly mounted.

As shown in fig. 2, the roll screen 200 includes a plurality of flexible display screens 210, and adjacent flexible display screens 210 are coupled together in the axial direction of the roll screen motor 100 by a plurality of 2mm fixing pieces 220.

As shown in fig. 3-4, each flexible display screen 210 includes a plurality of display modules arranged in a row, and adjacent display modules are electrically connected by a waterproof flexible flat cable 212. In the flexible display screen 210, a control board 213 is disposed in one of the display modules, and the control board 213 can control one or more display modules in the flexible display screen 210 to emit light. In addition, a high voltage conversion module and a signal processing control card are respectively arranged in the two display modules, the high voltage conversion module is used for providing working voltage for the flexible display screen 210 where the high voltage conversion module is located, and the signal processing control card is used for externally connecting control signals. Specifically, the high-voltage conversion module adopts a TPS wide-voltage direct-current conversion module, the designed power supply voltage range is 10-60V, the automobile storage battery can supply power, and the external power supply can also supply power by converting 220V into DC 24/48V. Compared with a conventional 5V series power supply mode, the TPS wide-voltage direct current conversion module in the embodiment can be suitable for a DC high-voltage 24V (10-60V) series power supply mode, has low voltage and current, reduces the requirements on wires and length, can ensure that the power supply voltage of each display module is stable and consistent, and has the advantages of no scalding of wires, energy saving, environmental protection, uniform white balance and the like. The signal processing control card adopts a Norwalk LED control card, and a Norwalk B5S display control system is arranged in the Norwalk LED control card.

The front of a plurality of display module assembly is connected through flexible steel mesh 214, and when rolling up curtain motor 100 and driving roll up the ascending rolling of curtain screen 200, flexible steel mesh 214 can be rolled up and contract along display module assembly's array direction, and when rolling up curtain screen 200 was transferred to curtain motor 100, flexible steel mesh 214 then can be straightened under display module assembly's action of gravity, expandes into planar state.

The back sides of the plurality of display modules are connected by at least two flexible connecting sheets 215. The flexible connecting sheet 215 has two ends connected to two adjacent display modules, one end fixed to one of the display modules and the other end having a waist-shaped hole 215a arranged along the arrangement direction of the display modules, and the flexible connecting sheet is fixed to the other display module by a screw passing through the waist-shaped hole 215 a. When the rolling motor 100 drives the rolling screen 200 to ascend and roll, the flexible connecting sheet 215 is bent along the arrangement direction of the display modules, and the screws relatively move in the kidney-shaped holes 215 a. The flexible connecting sheet 215 not only has a connecting function, but also has a bending limiting function, so that the waterproof flexible flat cable 212 can be protected from being excessively pulled and excessively extruded between modules when the roller shutter screen 200 is rolled.

The flexible steel net 214 and the flexible connecting sheet 215 are both made of 304 stainless steel by CNC machining.

In this embodiment, the display module includes a plastic housing 2111 and a PCB 2112, wherein a plurality of LEDs are mounted on the front surface of the PCB 2112, and electronic components such as ICs, capacitors, resistors, and electrical connectors are mounted on the back surface of the PCB 2112. The front and back sides of the PCB 2112 are encapsulated with bi-component epoxy resin glue, which has waterproof, moistureproof and antistatic effects. The back of the plastic shell 2111 is provided with an avoiding opening avoiding the electric connector, the periphery of the avoiding opening is provided with a waterproof silica gel ring, and the adjacent display modules are electrically connected through an outdoor special waterproof flexible flat cable 212 matched with the electric connector.

In this embodiment, the circuit structure of the PCB 2112 further adopts 6 layers of PCB LAYOUT, and is provided with two signal shielding layers, which can ensure high-speed transmission and have strong electromagnetic interference resistance.

Compare with current LED roller shutter screen, the utility model provides an over-and-under type LED roller shutter screen has following advantage:

1. the display modules are connected by adopting a flexible steel mesh 214 and a flexible connecting sheet 215 which are made of 304 stainless steel with good flexibility, the structure is simple, the complexity of the LED roller shutter screen structure can be greatly reduced, and the LED roller shutter screen can be conveniently rolled and unfolded.

2. The front and back surfaces of the PCB 2112 in the display module are encapsulated by bi-component epoxy resin glue, the modules are connected by the waterproof flexible flat cable 212, and a waterproof silica gel ring is arranged between the waterproof flexible flat cable 212 and the modules, so that the overall waterproof performance of the module can reach IP68, and the module can be completely immersed in water for use.

3. The flexible steel mesh 214 is machined by CNC, the precision can reach 0.01mm, and seamless splicing between modules can be guaranteed.

4. A stopper is designed in the roll motor 100 to set a roll-down stroke of the roll screen 200.

5. And mounting holes 111 are reserved, so that the roller shutter screen 200 can be conveniently and quickly mounted.

6. The front and back maintenance is supported, the roller shutter screen 200 can be lowered when maintenance is needed, the flexible steel net 214 is directly detached from the front side, and any display module can be independently taken out or replaced.

Alternatively, in the above embodiment, as shown in fig. 5 and 6, the flexible steel net 214 includes at least one bent portion 214a, and two sides of each bent portion 214a are respectively provided with a connecting portion 214 b. When mounting, the connecting portion 214b is fixed to the front surface of the PCB 2112, and the bent portion 214a is fixed to a portion where two adjacent display modules are joined. When the flexible steel mesh has a plurality of bent portions 214a, the partially bent portions 214a are connected to a central region of the PCB 2112 together with the connection portions 214 b. The bending portion 214a is ladder-shaped and has a plurality of reinforcing ribs, which can be bent repeatedly to ensure the flexible connection effect between modules.

Alternatively, in the above embodiment, as shown in fig. 6, a plurality of screw holes 214c are formed on the flexible steel net 214. Therefore, the flexible steel mesh 214 can be fixed on the front surface of the display module through screws, and the display module is convenient to mount and dismount.

Optionally, in the above embodiment, the thicknesses of the flexible steel net 214 and the flexible connecting sheet 215 are both 0.3mm, so that the flexible steel net 214 and the flexible connecting sheet 215 have both good toughness and certain structural strength.

Optionally, in the above embodiment, as shown in fig. 7 and 8, the front surface of the PCB 2112 is provided with a plurality of rigid PC plastic masks 216, the plurality of PC plastic masks 216 are covered on the front surface of the PCB 2112 through screws, each PC plastic mask 216 is provided with an avoiding hole for exposing the LEDs on the front surface of the PCB 2112, and the cover surface of the PC plastic mask 216 is higher than the plane where the light emitting surface of the LEDs is located. Through setting up PC plastic face guard 216, can protect LED lamp pearl not receive outside extrusion when rolling up curtain 200 and curling. It should be noted that only one PC plastic visor 216 is shown in fig. 7 to facilitate showing the comparative effect of the areas of the PCB 2112 where the PC plastic visor 216 is provided and the areas where the PC plastic visor 216 is not provided.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims

1. A lifting type LED roller shutter screen comprises a roller shutter motor and a roller shutter screen suspended on the roller shutter motor, and is characterized in that the roller shutter screen comprises a plurality of flexible display screens axially connected along the roller shutter motor, the flexible display screens comprise a plurality of display modules arranged together in a row, the front sides of the display modules are connected through a flexible steel mesh, and the back sides of the display modules are connected through at least two flexible connecting sheets;

the flexible steel net is configured to be capable of being curled or unfolded along the arrangement direction of the display module; the flexible connecting sheet is connected with two adjacent display modules at two ends, one end of the flexible connecting sheet is fixed on one of the display modules, the other end of the flexible connecting sheet is provided with a waist-shaped hole arranged along the arrangement direction of the display modules, and the flexible connecting sheet is fixed on the other display module through a screw which transversely penetrates through the waist-shaped hole.

2. The elevating LED roller blind of claim 1, wherein said flexible steel mesh is CNC machined.

3. The elevating LED roller shutter screen according to claim 2, wherein the flexible steel net comprises at least one bending portion and connecting portions disposed at two sides of the bending portion.

4. The elevating LED rolling screen according to claim 3, wherein the flexible steel net is provided with a plurality of screw holes and fixed on the front surface of the LED display screen by screws crossing the screw holes.

5. The elevating LED roller blind of claim 2, wherein the thickness of the flexible steel mesh is 0.3 mm.

6. The elevating LED roller shutter screen according to any one of claims 1 to 5, wherein the display module comprises a plastic housing and a PCB disposed on the front surface of the plastic housing, and the front surface and the back surface of the PCB are filled with two-component epoxy resin glue.

7. The elevating LED rolling screen according to claim 6, wherein the front surface of the PCB board is provided with a PC plastic mask, the mask is provided with an avoiding hole for exposing the LED on the front surface of the PCB board, and a heightening rib, and the heightening rib is protruded at the height of the light emitting surface of the LED.