CN209591374U

CN209591374U - LED box and LED screen

Info

Publication number: CN209591374U
Application number: CN201920213614.6U
Authority: CN
Inventors: 王军伟; 江忠永; 黄辉
Original assignee: HANGZHOU MULTI-COLOR OPTOELECTRONICS Co Ltd
Current assignee: HANGZHOU MULTI-COLOR OPTOELECTRONICS Co Ltd
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2019-11-05
Anticipated expiration: 2029-02-19

Abstract

This application discloses LED boxes and LED screen.The LED box includes: LED module, and the LED module includes multiple positioning columns；Aluminium case, the aluminium case are provided with multiple location holes；And pinboard, the pinboard are fixed on the aluminium case, and are electrically connected with the LED module, wherein the multiple positioning column is inserted into the multiple location hole respectively and magnetic suck each other, so that the LED module is fixed on the aluminium case.LED module in the LED box is directly anchored on aluminium case, so as to save bottom plate to reduce process costs, and be may be implemented to be accurately positioned, is improved the flatness of LED module.

Description

LED box and LED screen

Technical field

The utility model relates to technical field of LED display, more particularly, to a kind of LED box and LED screen.

Background technique

LED screen is a kind of plate shown by controlling light emitting diode (Light-emitting diode, LED) Display is widely used in the equipment for showing the various information such as text, image, video, video signal.The biggish LED screen of area Usually spliced and combined by multiple small LED boxes.

Fig. 1 shows the perspective view of LED box according to prior art.As shown in Figure 1, for LED module surfacing, Bottom plate 112 and its supporting structure usually are set at the back side of lamp plate 111 in the prior art, to form LED module, Lai Shixian The good effect of LED module flatness.The LED module that bottom plate 112 and lamp plate 111 are constituted is fixed to aluminium case 113 via screw, To form LED box 110, then multiple LED boxes are arranged and are assembled into LED screen.

Bottom plate 112 is used as intermediate structure part, lamp plate 111 is used to support, it is hereby achieved that smooth display surface.Bottom plate 112 are for example made of plastics aluminium alloy.However, the use of bottom plate 112 does not only result in the cost of LED box and weight increases, and And the assembling process of LED module is caused to complicate.During bottom plate 112 and lamp plate 111 are fixed to aluminium case 113, lamp plate 111 positioning is easy to happen deviation, so that the LED screen display effect finally assembled is bad.

Fig. 2 shows the schematic diagrames of LED screen according to prior art.As shown in Fig. 2, in the prior art, by multiple LED Cabinet 110 is stitched together to form LED screen 100.However, the positioning method of the LED box 110 of the prior art is inaccurate, meeting Various problems caused by the distance between appearance LED box 110 is improper.For example, gap between LED box 110 some It is 0.10mm, other gap is 0.20mm, and it is bad that gap will cause display effect.If between two LED boxes 110 Apart from too small, the display of LED screen 100 is in bright line；If the distance between two LED boxes 110 are excessive, the display of LED screen 100 can be in Concealed wire.Therefore, in the prior art, after the splicing for completing LED box 110, manually it is finely adjusted toward contact needs, to mention The uniformity and consistency of spacing between high LED box 110.However, manually the method for fine tuning LED box reduces production capacity, And if adjustment effect is bad, it is bad product quality to be directly resulted in.Positioning method between LED module and aluminium case is to influence The uniformity of spacing between LED box and the key point of consistency.

In the LED screen of the preceding small spacing of maintenance, cost problem caused by above-mentioned LED box and assembled difficulty become obvious. In the LED screen of preceding maintenance, the maintenance and disassembly installation of LED module are carried out from the front of LED screen (showing expression).Small It is 2.5mm and hereinafter, for example, P2.5 spacing as the centre distance between the LED and LED of pixel element in the LED screen of spacing Indicate that the distance between pixel element is 2.5mm.

Therefore, it needs that the LED box of the prior art is further improved, to solve the above problems.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a kind of LED box and LED screens, wherein LED box In LED module be directly anchored on aluminium case, can not only save bottom plate and save cost, but also may be implemented to be accurately positioned, Improve the flatness of LED module.

It is according to the present utility model in a first aspect, providing a kind of LED box characterized by comprising LED module, it is described LED module includes multiple positioning columns；Aluminium case, the aluminium case are provided with multiple location holes；And pinboard, the pinboard are fixed It is electrically connected on the aluminium case, and with the LED module, wherein the multiple positioning column is inserted into the multiple location hole respectively In and magnetic suck each other so that the LED module is fixed on the aluminium case.

Preferably, the material of the positioning column includes magnetic material, and permanent magnet and/or electromagnetism are provided in the location hole Iron.

Preferably, the permanent magnet and/or electromagnet have flat surface.

Preferably, the LED module further include: circuit board, the circuit board have each other relative first surface and the Two surfaces；And multiple luminescence units, on the first surface of the circuit board, wherein the multiple positioning column setting exists On the second surface of the circuit board.

Preferably, the multiple positioning column includes at least two first positioning columns and at least one second positioning column.

Preferably, the number of first positioning column is two.

Preferably, the size of first positioning column and second positioning column is unequal.

Preferably, at least two first positioning column is distributed in the edge on the first side of the LED module.

Preferably, at least one described second positioning column is distributed in the edge on the second side of the LED module.

Preferably, at least one described second positioning column includes four or more second positioning columns.

Preferably, the multiple positioning column respectively include: nut is connected to the second surface of the circuit board；Spiral shell Silk, is connected to the nut；And gasket, between the screw and the nut, wherein the gasket and the screw Flush.

Preferably, at least one of the nut, the gasket and described screw are magnetic material.

Preferably, length ratio of the second of LED module while with first is 1:1 to 1:0.3.

Preferably, length ratio of the second of LED module while with first is 1:0.75 to 1:0.3.

Preferably, the circuit board with a thickness of 1.0 to 1.8mm.

Preferably, the LED module with a thickness of 1.0 to 1.8mm.

Preferably, the aluminium case further include: frame, the frame have each other relative first surface and second surface, Wherein, the multiple location hole is located at the first surface of the frame.

Preferably, the multiple location hole includes at least two first positioning holes and at least one second location hole.

Preferably, the number of the first positioning hole is two.

Preferably, the size of the first positioning hole and the second location hole is unequal.

Preferably, at least two first positioning hole is distributed in the edge on the first side of the frame.

Preferably, at least one described second location hole is distributed in the edge on the second side of the frame.

Preferably, at least one described second location hole includes four or more second location holes.

Preferably, the frame further includes the fixing groove that Angle Position is arranged in, the fixing groove from the frame second Surface is recessed inwardly, for accommodating fixing piece, so that between LED box adjacent to each other shares the fixing piece and realizes Be fixedly connected.

Preferably, the frame further includes the fixation hole that the lower portion is extended to from the fixing groove, the fixation Hole is used for being fixedly connected between the fixing piece and the frame.

Preferably, the first surface of the frame is additionally provided with a plurality of ribs being connected to each other.

Preferably, the link position of a plurality of ribs is arranged in the multiple location hole.

Preferably, the frame includes fixed plate and side strip, and the multiple location hole is located at the fixed plate and side In the inner space that item limits, the frame further includes the cabling channel on the side strip, and the cabling channel is for accommodating Cabling.

Preferably, the multiple location hole includes at least two first positioning holes and at least one second location hole

The multiple positioning column includes at least two first positioning columns and at least one second positioning column, wherein it is described extremely Few two the first positioning columns are inserted into respectively at least two first positioning hole, at least one described second positioning column is inserted respectively Enter at least one described second location hole.

Preferably, the LED module and the respective exposed surface of aluminium case respectively as the LED box top surface and Bottom surface.

Preferably, the thickness of the LED box is less than 30mm.

Preferably, the LED box is composable is spliced into the preceding small spacing LED screen of maintenance.

A kind of LED screen, which is characterized in that including multiple LED boxes, LED case adjacent to each other in the multiple LED box Body shares fixing piece and being fixedly connected between realizing, the multiple LED box respectively include: LED module, the LED Mould group includes multiple positioning columns；Aluminium case, the aluminium case are provided with multiple location holes；And pinboard, the pinboard are fixed on It on the aluminium case, and is electrically connected with the LED module, wherein the multiple positioning column is inserted into respectively in the multiple location hole And magnetic suck each other, so that the LED module is fixed on the aluminium case

Preferably, the permanent magnet and/or electromagnet have flat surface.

Preferably, the number of first positioning column is two.

Preferably, the circuit board with a thickness of 1.0 to 1.8mm.

Preferably, the LED module with a thickness of 1.0 to 1.8mm.

Preferably, the number of the first positioning hole is two.

Preferably, the multiple location hole includes at least two first positioning holes and at least one second location hole,

Preferably, the thickness of the LED box is less than 30mm.

Preferably, the LED screen is the preceding small spacing LED screen of maintenance.

LED box and LED screen provided by the utility model, wherein the LED module in LED box is directly anchored to aluminium case On, thus bottom plate and its supporting structure in LED module in the prior art can be eliminated, cost is saved, is reduced whole thick Degree and weight, it is easy for installation.Meanwhile aluminium case has enough strength and stiffness, LED module can be smart under the action of positioning column Position is determined to aluminium case, therefore the LED module has the function of adaptive location, improves gap between LED module and LED module Consistency.

Effect of the LED box in the LED screen of the preceding small spacing of maintenance is especially apparent, and can be substantially reduced cost and reduction Assembled difficulty.

Detailed description of the invention

By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model , feature and advantage will be apparent from, in the accompanying drawings:

Fig. 1 shows the perspective view of LED box according to prior art.

Fig. 2 shows the schematic diagrames of LED screen according to prior art.

Fig. 3 a shows the perspective view of the LED module according to the utility model embodiment.

Fig. 3 b shows the front view of the LED module according to the utility model embodiment.

Fig. 3 c shows the rearview of the LED module according to the utility model embodiment.

Fig. 4 a shows the sectional view of the LED module according to the utility model embodiment.

Fig. 4 b shows the partial enlarged view of the LED module sectional view according to the utility model embodiment.

Fig. 5 a and 5b respectively illustrate the schematic diagram of the LED module according to the utility model embodiment.

Fig. 6 a shows the perspective view of the aluminium case according to the utility model embodiment.

Fig. 6 b shows the front view of the aluminium case according to the utility model embodiment.

Fig. 6 c shows the sectional view of the aluminium case according to the utility model embodiment.

FIG. 6d shows that the partial enlarged views according to the aluminium case sectional view of the utility model embodiment.

Fig. 7 a shows the perspective view of the LED box according to the utility model embodiment.

Fig. 7 b shows the sectional view of the LED box according to the utility model embodiment.

Fig. 7 c shows the partial enlarged view of the LED box sectional view according to the utility model embodiment.

The assembling process schematic diagram according to the LED box of the utility model embodiment is shown respectively in Fig. 8 a and 8b.

Fig. 9 shows the schematic diagram of the LED screen according to the utility model embodiment.

Figure 10 a and 10b are shown respectively vertical from front and back according to the aluminium case of another embodiment of the utility model Body figure.

Figure 11 shows the perspective view of the LED box according to another embodiment of the utility model.

Reference signs list

100 LED screens

110 LED boxes

111 lamp plates

112 bottom plates

113 aluminium casees

200 LED screens

210 LED modules

211 circuit boards

212 luminescence units

The first positioning column of 213a

The second positioning column of 213b

214 nuts

215 gaskets

216 screws

220 aluminium casees

221 fixed plates

222 side strips

223a first positioning hole

223b second location hole

224 permanent magnets and/or electromagnet

225 binders

230 pinboards

250 LED boxes

310 LED modules

320 aluminium casees

321 fixed plates

322 side strips

323 location holes

324 ribs

325 fixing grooves

326 fixation holes

327 cabling channels

330 pinboards

350 LED boxes

Specific embodiment

Hereinafter reference will be made to the drawings is more fully described the various embodiments of the utility model.In various figures, identical Element is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not drawn to draw System.

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.

Fig. 3 a to 3c respectively illustrates the perspective view, front view and backsight of the LED module according to the utility model embodiment Figure.

As shown in Fig. 3 a to 3c, the LED module 210 of the utility model embodiment includes circuit board 211, multiple luminescence units 212 and multiple positioning columns.

Multiple luminescence units 212 are connected to circuit board 211, and circuit board 211 and multiple luminescence units 212 are used for according to input Signal is shown.Circuit board 211 is, for example, printed circuit board (Printed circuit board, PCB), luminescence unit 212 For example, light emitting diode.

Multiple positioning columns include at least two first positioning column 213a and at least one second positioning column 213b, the first positioning Column 213a is used to for LED module 210 being accurately located to aluminium case, and the second positioning column 213b is for being auxiliarily fixed.Preferably, Duo Geding Position column includes two the first positioning column 213a and at least one second positioning column 213b.It is highly preferred that multiple positioning columns include two A first positioning column 213a and at least four second positioning column 213b.In this embodiment, multiple positioning columns include two first Positioning column 213a and six the second positioning column 213b, for LED module 210 to be connected to aluminium case.Multiple positioning columns are directly connected to To the surface of circuit board 211, the surface is opposite with the surface that circuit board 211 is connected with luminescence unit 212.In this embodiment, The bottom plate being arranged on circuit board in the prior art and its supporting structure are eliminated, cost is saved, and circuit board 211 is had It is flexible, can free extension in a certain range, achieve the effect that adaptive location.

As shown in Figure 3c, the first positioning column 213a and the second positioning column 213b is connected to the edge of circuit board 211.First Positioning column 213a is used to LED module 210 being fixed to aluminium case, and LED module 210 is accurately located to aluminium case.Second positioning column 213b is used to LED module 210 being connected to aluminium case, is used for auxiliary positioning, is conducive to the areal stretch of circuit board 211 to smooth State, and the connection relationship between LED module 210 and aluminium case is reinforced, prevent LED module 210 from falling off from aluminium case.First positioning column 213a and the second positioning column 213b play the role of positioning, can be distributed in any position of LED module 210.

In this embodiment, two the first positioning column 213a are located at the opposite two sides of LED module 210.Preferably, two A first positioning column 213a is located at the midpoint of the opposite two sides of LED module 210.Preferably, the shape of LED module 210 is Rectangle, two the first positioning column 213a are located at the midpoint of the two sides narrow side of LED module 210.In alternate embodiments, The shape of LED module 210 is square, and two the first positioning column 213a can be located at any position of LED module 210, Such as two the first positioning column 213a are located on any side or any two sides of LED module 210.

In this embodiment, multiple positioning columns include six the second positioning column 213b, and six positioning column 213b are located at Without the two sides of the first positioning column 213a distribution.In alternate embodiments, six positioning column 213b can be located at LED mould Any position of group 210.

Fig. 4 a and 4b respectively illustrate the part of sectional view and sectional view according to the LED module of the utility model embodiment Enlarged drawing.The sectional view is intercepted along the AA ' line in Fig. 3 c.

As shown in fig. 4 a, the LED module 210 of the utility model embodiment includes circuit board 211, multiple luminescence units 212 With multiple positioning columns.

LED module 210 includes circuit board 211 and multiple luminescence units 212, for being shown according to input signal.Electricity Road plate 211 is, for example, printed circuit board, and luminescence unit 212 is, for example, light emitting diode.

In this embodiment, the thickness D of circuit board 211 is 1.0 to 1.8mm.With generally use in the prior art with a thickness of The circuit board of 2.0mm is compared, and the intensity of circuit board 211 is reduced, so that circuit board 211 has certain pliability, is being adsorbed Afterwards, it is easy to be straightened by external force.Preferably, the thickness D of circuit board 211 is 1.6mm or 1.4mm or 1.2mm.Due in the application LED module is without bottom plate, therefore the thickness range of LED module is 1.0-1.8mm.

Multiple positioning columns are used to LED module 210 being connected to aluminium case.Multiple positioning columns are connected directly to circuit board 211 Surface, the surface are opposite with the surface that circuit board 211 is connected with luminescence unit 212.In this embodiment, the prior art is eliminated The bottom plate and its supporting structure being arranged on middle circuit board, save cost, and circuit board 211 is made to have flexibility, Ke Yi It stretches in a certain range, achievees the effect that adaptive location.

Multiple positioning columns include two the first positioning columns and six the second positioning columns, and sectional view is along the AA ' line in Fig. 3 c Interception, illustrates only the second positioning column 213b in figs 4 a and 4b.It is understood that the first positioning column and the second positioning column Structure is identical, the difference is that, the size of the first positioning column and the second positioning column is unequal.

As shown in Figure 4 b, the second positioning column 213b includes nut 214, gasket 215 and screw 216.It is arranged on circuit board 211 Having has opening on the surface of multiple positioning columns, have the protrusion to match with the opening on nut 214, the protrusion is for example It is connected to the opening by scolding tin, so that nut 214 is fixed to circuit board 211, nut 214 is, for example, copper nut.Gasket 215 be the intermediate disc-shaped part with aperture, has circular ring shape protrusion along circumferential direction on the circumference of disk.Screw 216 Including screw rod and nut, the outer surface of screw rod is provided with screw thread, and nut is pancake.Gasket 215 is fixed to spiral shell by screw 216 Gasket 215 is precisely located by screw 216 to nut 214 for example, by using technique jig by mother 214.The circular ring shape of gasket 215 Protrusion is concordant with the nut surface of screw 216, so that the surface of the second positioning column is plane, can more firmly be fixed to and its phase Corresponding location hole.In this embodiment, the shape of gasket 215 is circle.In alternate embodiments, the shape of gasket 215 It can be any one in polygon, sector, ellipse, kidney ellipsoid.

The structure of first positioning column and the second positioning column is identical, and details are not described herein.The difference is that the first positioning The size of column and the second positioning column can the diameter of identical or the first positioning column gasket 215 to be greater than second fixed The diameter of the gasket 215 of position column.

In the prior art, length of the second of LED module 210 while with first is than being usually 1:1.

Unlike the prior art, in the application, length ratio of the second of LED module 210 while with first can be 1:1~1: 0.3.In this embodiment, as shown in Figure 5 a, length ratio of the second of LED module 210 while with first, i.e. length-width ratio B1:A1 For 1:0.75~1:0.3.The length-width ratio for increasing LED module 210 is conducive to the suppleness for improving LED module 210, thus favorably In LED module 210 under the action of multiple positioning columns and aluminium case, it is stretched to straight.Further, LED module 210 is improved Suppleness is conducive in the case where the position inaccurate of LED module 210, and LED module 210 is in multiple positioning columns and aluminium case Correct position is returned under effect.In a preferred embodiment, as shown in Figure 5 b, the length-width ratio B2:A2 of LED module 210 is 1: 0.375。

In the utility model, LED module is composable to be spliced into the preceding small spacing LED screen of maintenance.

Fig. 6 a to 6d respectively illustrate the perspective view, front view, sectional view of the aluminium case according to the utility model embodiment with And the partial enlarged view of sectional view.The sectional view is intercepted along the BB ' line of Fig. 6 b.

As shown in Fig. 6 a to 6d, in this embodiment, the main body of aluminium case 220 is frame, and frame is for example including fixed plate 221 With side strip 222, at least two first positioning hole 223a and at least one second location hole are distributed in fixed plate 221 223b, first positioning hole 223a and second location hole 223b are located at any position of fixed plate 221.Preferably, in fixed plate 221 There are two first positioning hole 223a and at least four second location hole 223b for upper distribution.Have around fixed plate 221 along square The side strip 222 in shape direction, for fixing aluminium case 220, fixed plate 221 and side strip 222 can be integrally formed, can also distinguish Molding.Preferably, first positioning hole 223a and second location hole 223b is distributed in each side and each angle of fixed plate 221.Aluminium case 220 It is made of the material with enough strength and stiffness, material is for example including PC plastic cement and/or metal alloy.

In this embodiment, the shell shape of first positioning hole 223a and second location hole 223b are fan-shaped or kidney ellipsoid, The internal via shape of first positioning hole 223a and second location hole 223b are circle.In alternate embodiments, first positioning hole The shell shape and internal via shape of 223a and second location hole 223b can be appointing in polygon, sector, ellipse, kidney ellipsoid It anticipates one kind.

In alternate embodiments, can save the fixed plate 221 of aluminium case 220, aluminium case 220 include side strip 222 and First positioning hole 223a and second location hole 223b on each side and each angle of side strip 222.In the implementation of another substitution In example, a plurality of ribs can also be set in fixed plate 221, to reinforce aluminium case 220.

It is understood that the structure of first positioning hole 223a and second location hole 223b are identical, differences It is, the size of first positioning hole 223a and second location hole 223b are unequal.

In this embodiment, the shape of aluminium case 220 is rectangle, and aluminium case 220 includes two first positioning hole 223a and six Second location hole 223b.Two first positioning hole 223a are located at the narrow side edge of aluminium case 220, two first positioning holes 223a makes the first positioning column be accurately fixed to first positioning hole 223a for installing its corresponding first positioning column.Six Second location hole 223b is located at four angles and the long side edge of aluminium case 220, for installing its corresponding second positioning Column will not fall off the second positioning column while second location hole 223b has certain scope of activities.

As described relative to figs. 6c and 6d, by taking second location hole 223b as an example, the inner hole of second location hole 223b is circle, second Permanent magnet and/or electromagnet 224 are provided in location hole 223b, permanent magnet and/or electromagnet 224 are connected via binder 225 To the hole second location hole 223b.The shape of permanent magnet and/or electromagnet 224 and the internal via shape of second location hole 223b are mutually fitted Match, it is for example, cylindrical, and two bottom surfaces of permanent magnet and/or electromagnet 224 are flat surface, to increase contact surface Product, is conducive to more firmly be connected to binder 225 and more firmly fixes the second positioning column.

Fig. 7 a to 7c respectively illustrates the perspective view of the LED box according to the utility model embodiment, sectional view and cuts The partial enlarged view of face figure.The sectional view is intercepted along the CC ' line in Fig. 7 a.

As shown in Fig. 7 a to 7c, LED box 250 includes LED module 210, aluminium case 220 and pinboard (that is, HUB plate) 230.LED module 210 is connected to aluminium case 220 via multiple positioning columns.Since aluminium case 220 has enough strength and stiffness, LED Mould group 210 has certain flexibility, therefore after LED module 210 is fixed to aluminium case 220 via multiple positioning columns, LED module 210 under the action of multiple positioning columns and aluminium case 220, are accurately located to aluminium case 220, and the surface of LED module 210 is stretched To straightened condition.

Pinboard 230 is fixed on aluminium case 220 using screw, and is electrically connected with LED module 210.Pinboard 230 it is main Effect, which is to provide, provides expansion interface for LED module 210, including existing for powering with the circuit board of signal transmission and setting Chip and electronic component on circuit board.

In this embodiment, at least partly building block of the first positioning column and the second positioning column is magnetic material, such as For iron, cobalt, nickel and its alloy.There is permanent magnet and/or electromagnet, thus permanent magnet inside first positioning hole and second location hole And/or the first positioning column and the second positioning column can be adsorbed to corresponding location hole by electromagnet respectively.First positioning hole and The size of two location holes is unequal, and the size of the first positioning column and the second positioning column is unequal, thus first positioning hole and first Positioning column plays the role of pinpoint, and second location hole and the second positioning column play auxiliary positioning.

LED module can be accurately located to aluminium case by first positioning hole and the first positioning column, and LED module has centainly Scope of activities, make LED module can with its position of automatic adjusument, eliminate in the prior art manually fine tuning LED module step Suddenly.

As shown in Figure 8 a, in the case where no shell, LED module 210 is easy to happen deformation, and common deformation has A type (concave) deformation and Type B (convex) deformation.As shown in Figure 8 b, after LED module 210 is connected to aluminium case 220, in determining for aluminium case 220 Under the action of the positioning column of position hole and LED module, restore to flat surface, to eliminate in the prior art in LED module The back side setting bottom plate and its supporting structure, improve the flatness of LED module.

In the utility model, LED box is composable to be spliced into the preceding small spacing LED screen of maintenance.Fig. 9 shows practical according to this The schematic diagram of the LED screen of new embodiment.

As shown in figure 9, the LED screen 200 of the utility model embodiment includes multiple LED boxes 250.By multiple LED boxes 250 connect via connecting component to form LED screen 200.Multiple LED boxes 250 are connected for example, by using screw and fixing piece It picks up and.Such as LED box 250 is connected to frame or connector (not shown), to form LED screen 200.Frame or Connector is made of the material with enough strength and stiffness, and material is for example including PC plastic cement and/or metal alloy.Due to saving Bottom plate in the prior art is removed, in this embodiment, the thickness of LED screen 200 is less than 30mm.

In the utility model, it is preferable that LED screen can be the small spacing LED screen of preceding maintenance, i.e. LED module in the LED screen Maintenance and disassembly installation are carried out from the front of LED screen (showing expression)；The small spacing refer to LED as pixel element with Centre distance between LED is 2.5mm and following.

LED box 250 includes LED module and aluminium case, and after the assembling of LED box 250 forms LED screen 200, LED module still has Activity space.Because the gap between LED module and LED module is very small, if deviation has occurred in some LED module position, Then positioning column will be withdrawn into LED module suitable position, so that the gap between LED module and LED module is with uniform Property and consistency.

As shown in figures 10 a and 10b, in this embodiment, the main body of aluminium case 320 is frame, and frame is for example including fixed plate 321 and side strip 322, the multiple location holes 323 to form array are distributed in fixed plate 321.Multiple location holes 323 are located at solid In the inner space that fixed board 321 and side strip 323 limit.There is the side strip along rectangular orientation around fixed plate 321 322, for fixing aluminium case 320, fixed plate 321 and side strip 322 can be integrally formed, can also be separately formed.Preferably, fixed Position hole 323 is distributed in each side and each angle of fixed plate 321.Aluminium case 320 is made of the material with enough strength and stiffness, material Material is for example including PC plastic cement and/or metal alloy.

In this embodiment, aluminium case 320 further includes the cabling channel 327 on side strip 323, and cabling channel 327 is for holding Receive cabling.

In this embodiment, the shell shape of location hole 323 is that fan-shaped or kidney ellipsoid, the internal via shape of location hole 323 are It is round.In alternate embodiments, the shell shape of location hole 323 and internal via shape can for polygon, sector, ellipse, Any one in kidney ellipsoid.

In alternate embodiments, can save the fixed plate 321 of aluminium case 320, aluminium case 320 include side strip 322 and Location hole 323 on each side and each angle of side strip 322.

It is understood that the structure of the multiple location hole 323 is identical, and multiple array lists can be formed Member.It include at least two first positioning holes and at least one second location hole in each array element.Preferably, in each battle array It include two first positioning holes and at least four second location holes in column unit.The difference is that first positioning hole and The size of two location holes is unequal.

In this embodiment, the shape of aluminium case 320 is rectangle, and multiple location holes in aluminium case 320 form multiple array lists Member, each array element is for example including two first positioning holes and six second location holes.Two first positioning holes are distributed in aluminium The narrow side edge of case 320, and in a row respectively along the arrangement of the long side of aluminium case 320, two first positioning holes are for installation and its Corresponding first positioning column, makes the first positioning column be accurately fixed to first positioning hole.Six second location holes are distributed in aluminium case 320 long side edge, and two rows are arranged respectively along the long side of aluminium case 320, it is of the row to be located at two first positioning holes Two sides make the second positioning column have certain scope of activities in second location hole for installing its corresponding second positioning column While will not fall off.

In this embodiment, aluminium case 320 further includes the fixing groove 325 that Angle Position is arranged.The shape of fixing groove 325 is, for example, Circular 1/4 is fan-shaped, is recessed inwardly from the second surface of aluminium case 320.Fixing groove 325 is used to accommodate external fixing piece.This is solid It is, for example, round or semicircle for determining part.In a preferred embodiment, aluminium case 320 further includes extending to aluminium case 320 from fixing groove 325 Internal fixation hole 326 screws in fixation hole 326 for example, by using screw, to realize the fixation between fixing piece and aluminium case 320 Connection.The aluminium case 320 of four LED boxes adjacent to each other shares a round fixing piece, two LED boxes adjacent to each other Aluminium case 320 shares a semi-circular fastener.Therefore, LED box adjacent to each other can be real by the way of sharing fixing piece Being fixedly connected between now.

In this embodiment, the first surface of aluminium case 320 is provided with a plurality of ribs 324 being connected to each other, will be multiple fixed The link position of a plurality of ribs 324 is arranged in position hole 323.Aluminium case 320 due to be provided with ribs 324 and improve intensity and just Degree, and improve the mechanical strength of location hole.

LED box 350 includes LED module 310, aluminium case 320 and pinboard (that is, HUB plate) 330.LED module 310 Multiple positioning columns are inserted into multiple location holes of aluminium casees 330, each other magnetic suck, so that LED module 310 is fixed on aluminium case 320 On.Since aluminium case 320 has enough strength and stiffness, LED module 310 has certain flexibility, therefore in LED module After 310 are fixed to multiple location holes of aluminium case 320 via multiple positioning columns, LED module 310 is in multiple positioning columns and aluminium case 320 Under the action of, it is accurately located to aluminium case 320, and the surface of LED module 310 is stretched to straightened condition.

Pinboard 330 is fixed on aluminium case 320 using screw, and is electrically connected with LED module 310.Pinboard 330 it is main Effect, which is to provide, provides expansion interface for LED module 310, including existing for powering with the circuit board of signal transmission and setting Chip and electronic component on circuit board.

In the LED box 350 of the embodiment, aluminium case 320 includes the array that multiple location holes are formed.If using Fig. 6 a Shown in 8 location holes fix a LED module 310, then the LED module of multiple small areas can be fixed on single cabinet 310.If fixing a LED module 310 using multiple location holes shown in Figure 11, one can be fixed on single cabinet The LED module 310 of large area.Therefore, one or more LED modules 310 can be fixed on aluminium case 320.Similarly, in aluminium case One or more pinboards 330 can be fixed on 320.

It is as described above according to the embodiments of the present invention, these embodiments details all there is no detailed descriptionthe, Also not limiting the utility model is only the specific embodiment.Obviously, as described above, many modification and change can be made Change.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the principles of the present invention and actually to answer With so that skilled artisan be enable to utilize the utility model and repairing on the basis of the utility model well Change use.The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. a kind of LED box characterized by comprising

LED module, the LED module include multiple positioning columns；

Aluminium case, the aluminium case are provided with multiple location holes；And

Pinboard, the pinboard are fixed on the aluminium case, and are electrically connected with the LED module,

Wherein, the multiple positioning column is inserted into the multiple location hole and magnetic suck each other respectively, so that the LED module It is fixed on the aluminium case.

2. LED box according to claim 1, which is characterized in that the material of the positioning column includes magnetic material, described Permanent magnet and/or electromagnet are provided in location hole.

3. LED box according to claim 2, which is characterized in that the permanent magnet and/or electromagnet have smooth table Face.

4. LED box according to claim 1, which is characterized in that the LED module further include:

Circuit board, the circuit board have each other relative first surface and second surface；And

Multiple luminescence units, on the first surface of the circuit board,

Wherein, the multiple positioning column is arranged on the second surface of the circuit board.

5. LED box according to claim 4, which is characterized in that the multiple positioning column includes at least two first fixed Position column and at least one second positioning column.

6. LED box according to claim 5, which is characterized in that the number of first positioning column is two.

7. LED box according to claim 5 or 6, which is characterized in that first positioning column and second positioning column Size it is unequal.

8. LED box according to claim 5, which is characterized in that at least two first positioning column is distributed in described The edge on the first side of LED module.

9. LED box according to claim 5, which is characterized in that at least one described second positioning column is distributed in described The edge on the second side of LED module.

10. LED box according to claim 5, which is characterized in that at least one described second positioning column include four or More second positioning columns of person.

11. LED box according to claim 4, which is characterized in that the multiple positioning column respectively include:

Nut is connected to the second surface of the circuit board；

Screw is connected to the nut；And

Gasket, between the screw and the nut,

Wherein, the flush of the gasket and the screw.

12. LED box according to claim 11, which is characterized in that in the nut, the gasket and the screw At least one is magnetic material.

13. LED box according to claim 1, which is characterized in that length of the second of LED module while with first Degree is than being 1:1 to 1:0.3.

14. LED box according to claim 13, which is characterized in that length of the second of LED module while with first Degree is than being 1:0.75 to 1:0.3.

15. LED box according to claim 4, which is characterized in that the circuit board with a thickness of 1.0 to 1.8mm.

16. LED box according to claim 1, which is characterized in that the LED module with a thickness of 1.0 to 1.8mm.

17. LED box according to claim 1, which is characterized in that the aluminium case further include: frame, the frame have Each other relative first surface and second surface, wherein the multiple location hole is located at the first surface of the frame.

18. LED box according to claim 17, which is characterized in that the multiple location hole includes at least two first Location hole and at least one second location hole.

19. LED box according to claim 18, which is characterized in that the number of the first positioning hole is two.

20. LED box described in 8 or 19 according to claim 1, which is characterized in that the first positioning hole and described second is determined The size in position hole is unequal.

21. LED box according to claim 18, which is characterized in that at least two first positioning hole is distributed in institute State the edge on the first side of frame.

22. LED box according to claim 18, which is characterized in that at least one described second location hole is distributed in institute State the edge on the second side of frame.

23. LED box according to claim 18, which is characterized in that at least one described second location hole includes four Or more second location holes.

24. LED box according to claim 17, which is characterized in that the frame further includes that consolidating for Angle Position is arranged in Determine slot, the fixing groove is recessed inwardly from the second surface of the frame, for accommodating fixing piece, so that LED adjacent to each other Cabinet share the fixing piece and realize between be fixedly connected.

25. LED box according to claim 24, which is characterized in that the frame further includes extending from the fixing groove To the fixation hole of the lower portion, the fixation hole is used for being fixedly connected between the fixing piece and the frame.

26. LED box according to claim 17, which is characterized in that the first surface of the frame is additionally provided with each other The a plurality of ribs of connection.

27. LED box according to claim 26, which is characterized in that the setting of the multiple location hole described a plurality of plus The link position of strong rib.

28. LED box according to claim 17, which is characterized in that the frame includes fixed plate and side strip, described In the inner space that multiple location holes are located at the fixed plate and side strip limits, the frame further includes being located at the side strip On cabling channel, the cabling channel is for accommodating cabling.

29. LED box according to claim 1, which is characterized in that

The multiple location hole includes at least two first positioning holes and at least one second location hole,

The multiple positioning column includes at least two first positioning columns and at least one second positioning column,

Wherein, at least two first positioning column is inserted into respectively at least two first positioning hole, it is described at least one Second positioning column is inserted into respectively at least one described second location hole.

30. LED box according to claim 29, which is characterized in that the first positioning hole and the second location hole Size it is unequal.

31. LED box according to claim 29, which is characterized in that first positioning column and second positioning column Size it is unequal.

32. LED box according to claim 1, which is characterized in that the LED module and the respective exposure of aluminium case Top and bottom of the surface respectively as the LED box.

33. LED box according to claim 1, which is characterized in that the thickness of the LED box is less than 30mm.

34. LED box according to claim 1, which is characterized in that the LED box is composable be spliced into before maintenance it is small Spacing LED screen.

35. a kind of LED screen, which is characterized in that including multiple LED boxes, LED case adjacent to each other in the multiple LED box Body shares fixing piece and being fixedly connected between realizing, the multiple LED box respectively include:

LED module, the LED module include multiple positioning columns；

36. LED screen according to claim 35, which is characterized in that the material of the positioning column includes magnetic material, described Permanent magnet and/or electromagnet are provided in location hole.

37. LED screen according to claim 36, which is characterized in that the permanent magnet and/or electromagnet have smooth table Face.

38. LED screen according to claim 35, which is characterized in that the LED module further include:

Multiple luminescence units, on the first surface of the circuit board,

39. the LED screen according to claim 38, which is characterized in that the multiple positioning column includes at least two first fixed Position column and at least one second positioning column.

40. LED screen according to claim 39, which is characterized in that the number of first positioning column is two.

41. the LED screen according to claim 39 or 40, which is characterized in that first positioning column and second positioning The size of column is unequal.

42. LED screen according to claim 39, which is characterized in that at least two first positioning column is distributed in described The edge on the first side of LED module.

43. LED screen according to claim 39, which is characterized in that at least one described second positioning column is distributed in described The edge on the second side of LED module.

44. LED screen according to claim 39, which is characterized in that at least one described second positioning column include four or More second positioning columns of person.

45. the LED screen according to claim 38, which is characterized in that the multiple positioning column respectively include:

Nut is connected to the second surface of the circuit board；

Screw is connected to the nut；And

Gasket, between the screw and the nut,

Wherein, the flush of the gasket and the screw.

46. LED screen according to claim 45, which is characterized in that in the nut, the gasket and the screw extremely Few one is magnetic material.

47. LED screen according to claim 35, which is characterized in that length of the second of LED module while with first Than for 1:1 to 1:0.3.

48. LED screen according to claim 47, which is characterized in that length of the second of LED module while with first Than for 1:0.75 to 1:0.3.

49. the LED screen according to claim 38, which is characterized in that the circuit board with a thickness of 1.0 to 1.8mm.

50. LED screen according to claim 35, which is characterized in that the LED module with a thickness of 1.0 to 1.8mm.

51. LED screen according to claim 35, which is characterized in that the aluminium case further include: frame, the frame have Each other relative first surface and second surface, wherein the multiple location hole is located at the first surface of the frame.

52. LED screen according to claim 51, which is characterized in that the multiple location hole includes at least two first fixed Position hole and at least one second location hole.

53. LED screen according to claim 52, which is characterized in that the number of the first positioning hole is two.

54. the LED screen according to claim 52 or 53, which is characterized in that the first positioning hole and second positioning The size in hole is unequal.

55. LED screen according to claim 52, which is characterized in that at least two first positioning hole is distributed in described The edge on the first side of frame.

56. LED screen according to claim 52, which is characterized in that at least one described second location hole is distributed in described The edge on the second side of frame.

57. LED screen according to claim 52, which is characterized in that at least one described second location hole include four or More second location holes of person.

58. LED screen according to claim 51, which is characterized in that the frame further includes the fixation that Angle Position is arranged in Slot, the fixing groove is recessed inwardly from the second surface of the frame, for accommodating fixing piece, so that LED case adjacent to each other Body share the fixing piece and realize between be fixedly connected.

59. LED screen according to claim 58, which is characterized in that the frame further includes extending to from the fixing groove The fixation hole of the lower portion, the fixation hole are used for being fixedly connected between the fixing piece and the frame.

60. LED screen according to claim 51, which is characterized in that the first surface of the frame is additionally provided with to be connected each other The a plurality of ribs connect.

61. LED screen according to claim 60, which is characterized in that the multiple location hole is arranged in a plurality of reinforcement The link position of rib.

62. LED screen according to claim 51, which is characterized in that the frame includes fixed plate and side strip, described more In the inner space that a location hole is located at the fixed plate and side strip limits, the frame further includes being located on the side strip Cabling channel, the cabling channel is for accommodating cabling.

63. LED screen according to claim 35, which is characterized in that

64. LED screen according to claim 63, which is characterized in that the first positioning hole and the second location hole Size is unequal.

65. LED screen according to claim 63, which is characterized in that and/or first positioning column and second positioning The size of column is unequal.

66. LED screen according to claim 35, which is characterized in that the LED module and the respective exposed table of the aluminium case Top and bottom of the face respectively as the LED box.

67. LED screen according to claim 35, which is characterized in that the thickness of the LED box is less than 30mm.

68. LED screen according to claim 35, which is characterized in that the LED screen is the preceding small spacing LED screen of maintenance.