CN212208795U - Anti-deformation display unit - Google Patents

Abstract

The utility model discloses a shape display element preapres for an unfavorable turn of events belongs to LED display screen technical field. The display unit comprises at least one module and a box body: the module comprises a bottom shell, a plurality of through holes are formed in the bottom shell, a PCB is arranged on the front surface of the bottom shell, a plurality of magnets are arranged on the back surface of the bottom shell, and a plurality of half through holes are formed in the back surface of the PCB; a plurality of positioning top posts are arranged on the box body corresponding to the half through holes; the bottom shell is adsorbed on the box body through the magnet, and the positioning top column of the box body penetrates through the corresponding through hole to be matched with the semi-through hole and tightly supports the PCB. The utility model discloses a when preapring for an unfavorable turn of events shape display element's module and box installation, the location fore-set of box passes the direct tight PCB board in top of drain pan, makes the drain pan unsettled, has solved because of the problem that the drain pan warp the tolerance and lead to module vanning unevenness, simultaneously, because the drain pan is unsettled, does not have assembly error between its and the box, has reduced the assembly accumulative total error of LED display screen on the whole, has improved the assembly precision.

Description

Anti-deformation display unit

Technical Field

The utility model relates to a LED display screen technical field especially relates to a shape display element preapres for an unfavorable turn of events.

Background

With the development of society, the application field of the LED display screen in life is more and more extensive, and the LED display screen has been integrated into many aspects of our life.

The LED display screen is a flat panel display, is used for showing information such as characters, image, video and video recording information, because the LED display screen can extend wantonly, realizes seamless concatenation, and operating duration is long, can utilize interactive technology, and the display effect is good, consequently by the wide application in places such as airport, market, hotel, high-speed railway, subway, cinema, exhibition, office building.

The LED display screen comprises at least one box, and a plurality of modules are installed on each box. Among the prior art, the module includes module drain pan and PCB board again, the PCB board is fixed on the module drain pan, the module drain pan is fixed on the box, there is assembly error between PCB board and the module drain pan and between module drain pan and the box, the accumulative total error of LED display screen has been increased, in addition, the module drain pan is a plastic casing usually, the plastic casing is easy to be out of shape, the PCB board is fixed on the module drain pan, can produce deformation tolerance along with the deformation of module drain pan, finally lead to whole module perk, influence the planarization after the module vanning.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a shape display element of preapring for an unfavorable turn of events, the module that aims at solving among the prior art warp the perk easily and the big problem of the accumulative error of assembly of LED display screen.

In order to achieve the above object, the utility model provides a shape display element preapres for an unfavorable turn of events is applicable to the LED display screen, display element includes at least one module and box:

the module comprises a bottom shell, a plurality of through holes are formed in the bottom shell, a PCB is arranged on the front surface of the bottom shell, a plurality of magnets are arranged on the back surface of the bottom shell, and a half through hole is formed in the back surface of the PCB;

the box body is provided with a positioning top column corresponding to the half through hole;

the bottom shell is adsorbed to the box body through the magnet, and the positioning top column of the box body penetrates through the corresponding through hole to be matched with the semi-through hole and tightly supports the PCB.

In a feasible scheme, the PCB is also provided with a contact point;

the box body is provided with a contact top column corresponding to the contact point;

the contact top column penetrates through the corresponding through hole to be in contact with the contact point and tightly push against the PCB.

In one possible solution, the contact points of the PCB board are covered with green oil or an insulating copper sheet circuit.

In one possible solution, the through holes include a circular through hole and a square through hole:

the circular through hole is arranged around the edge of the bottom shell;

the square through holes are arranged in the area enclosed by the circular through holes in a hollow window mode.

In a feasible scheme, the box body is provided with a magnetic suction screw corresponding to the magnet, and the magnet and the magnetic suction screw are mutually adsorbed to fix the bottom shell on the box body.

In a feasible scheme, the back surface of the bottom shell is also provided with a positioning column, and the box body is provided with a positioning hole corresponding to the positioning column.

The utility model provides a have following advantage:

the utility model discloses a shape display element preapres for an unfavorable turn of events has the through-hole on the drain pan of module, and the design has the reference column on the box. When the module is installed with the box body, the positioning top post of the box body penetrates through the bottom shell to directly push against the PCB, so that the bottom shell is suspended, even if the bottom shell is deformed, the PCB cannot be deformed under the action of the positioning post, the problem that the module is not flat due to deformation tolerance of the bottom shell is solved, meanwhile, because the bottom shell is suspended, no assembly error exists between the bottom shell and the box body, the assembly accumulated error of the LED display screen is reduced on the whole, and the assembly precision is improved.

Drawings

FIG. 1 is an exploded view of the display unit for preventing deformation according to the embodiment;

FIG. 2 is an exploded view of the module shown in FIG. 1;

fig. 3 is a schematic view of a rear structure of the module in fig. 2.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Various embodiments for implementing the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for the convenience of description of the present invention, and do not have a specific meaning per se.

The embodiment of the utility model provides a shape display element of preapring for an unfavorable turn of events is applicable to the LED display screen. Referring to fig. 1 to 3, the display unit includes at least one module 100 and a case 200.

As shown in fig. 2 and 3, the module 100 includes a bottom chassis 110 and a PCB board 120.

The bottom case 110 is a square plastic plate, a plurality of through holes are formed in the plastic plate, the through holes include a circular through hole 111 and a square through hole 112, the circular through hole 111 surrounds the edge of the bottom case 110, and the square through hole 112 is formed in the area surrounded by the circular through hole 111 in a hollow window manner. The bottom case 110 is further provided at the rear thereof with a plurality of magnets 113.

In practical applications, the sizes of the plurality of square through holes 112 may be different.

The PCB 120 is fixed on the front surface of the bottom case 110, the front surface of which is fixed with a lamp panel, and the back surface of which is provided with a half through hole 121.

With continued reference to fig. 1, the housing 200 has a positioning post 210 disposed in a corresponding 121-half through hole.

The bottom case 110 is attracted to the case 200 by the magnet 113, and the positioning top posts 210 of the case 200 pass through the through holes of the bottom case 110 to be engaged with the half through holes 121 of the PCB 120 and tightly abut against the PCB 120.

In one possible embodiment, the PCB 120 may be provided with contact pads covered with green oil or insulating copper foil.

At this time, the case is provided with a contact stud corresponding to the contact point on the PCB 120, and the contact stud passes through the corresponding through hole to contact the contact point and tightly push the PCB 120.

In practical application, the PCB 120 may be provided with only half through holes, but in order to prevent the deformation of the PCB, a plurality of positioning half through holes for the top pillars are required, and the cost for processing the half through holes on the PCB is high, so that the half through holes and the contact points can be used in combination, and the requirements for positioning and cost reduction on the basis of deformation prevention are met.

In practical applications, a magnetic screw may be further disposed on the box 200 corresponding to the magnet 113, and the magnet 113 and the magnetic screw attract each other to fix the bottom case 110 on the box 200.

In practical application, a plurality of modules can be installed on one box body.

In practical application, the back of the bottom shell is also provided with a positioning column, and the box body is provided with a positioning hole corresponding to the positioning column.

The display unit of preapring for an unfavorable turn of events of this embodiment has the through-hole in the design on the drain pan, and the design has the reference column on the box. When the module is installed with the box body, the positioning top post of the box body penetrates through the bottom shell to directly push against the PCB, so that the bottom shell is suspended, even if the bottom shell is deformed, the PCB cannot be deformed under the action of the positioning post, the problem that the module is not flat due to deformation tolerance of the bottom shell is solved, meanwhile, because the bottom shell is suspended, no assembly error exists between the bottom shell and the box body, and the assembly accumulative error of the LED display screen is reduced on the whole.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (5)

1. The utility model provides a shape display element of preapring for an unfavorable turn of events, is applicable to the LED display screen, a serial communication port, display element includes at least one module and box:

the module comprises a bottom shell, the bottom shell is provided with a plurality of through holes, the front surface of the bottom shell is provided with a PCB, the back surface of the bottom shell is provided with a plurality of magnets, and the back surface of the PCB is provided with a plurality of semi-through holes;

the box body is provided with a plurality of positioning top posts corresponding to the half through holes;

the bottom shell is adsorbed to the box body through the magnet, and the positioning top column of the box body penetrates through the corresponding through hole to be matched with the half through hole and tightly supports the PCB.

2. The deformation-resistant display unit of claim 1, wherein the PCB board is further provided with a contact point;

the box body is provided with a contact top column corresponding to the contact point;

the contact top column penetrates through the corresponding through hole to be in contact with the contact point and tightly push against the PCB.

3. The deformation-resistant display unit of claim 2, wherein the contact points of the PCB board are coated with green oil or an insulating copper clad circuit.

4. The deformation-resistant display unit of claim 1, wherein the through-holes comprise a circular through-hole and a square through-hole:

the circular through hole is arranged around the edge of the bottom shell;

the square through holes are arranged in the area enclosed by the circular through holes in a hollow window mode.

5. The deformation-preventing display unit of claim 1, wherein the case is provided with a magnetic screw corresponding to the magnet, and the magnet and the magnetic screw attract each other to fix the bottom case to the case.

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