LED display and LED display device
Technical field
The present invention relates to LED and show field, refer in particular to a kind of LED screen and LED display device.
Background technology
In recent years, the application of the large area LED display device that LED display forms obtains fast development, LED shows the sign that has become the urban information modernization construction, along with the development of information digitalization and display technique, the places such as bank, airport, station, securities trading market, customs, stadium and stage have been widely applied to.
Yet existing LED show development just meet with such as: the demand of large display area, the demand of severe applied environment and the demand of high production capacity, these have formed bottleneck to further developing of LED display undoubtedly.Under segmentation, the demand difficult point is mainly as follows:
1, be accompanied by the expansion of LED display area, adopt which kind of efficiently assembly structure be a great problem, contrast the similar LED display module of current industry for connected structure, industry adopts the limit lock construction, particularly for the ultrathin LED display screen module, in order to connect, also need to be arranged at specially display unit with wide frame, wasted undoubtedly lot of materials, cost and the volume of single led display screen module product have been increased, the problem that general connection positioning precision is low is in addition also perplexing in the industry always, therefore existing syndeton comparatively is unfavorable for the rental service use.
And how in time for large-area LED display, to be dispelled the heat also particularly important, existing all kinds of LED display all need to arrange corresponding heat abstractor, make a general survey of current industry like product, the iron casees that adopt more, or the aluminium body structure is as the back cover of LED display, more it considers and adopts above-mentioned body structure, because needs are taken into account waterproof problem, the back cover area is large, volume is large, and can in casing, lay fan, realize heat radiation by the forced-ventilated mode, but the back cover of so large metal quality exists volume large, the problem of Heavy Weight, make the LED display monomer very heavy, use and install difficulty.Add fan in traditional structure in the metal back cover in addition, the large rotating speed of fan power is high, also has the problem that noise is large.
2, it is windproof that severe applied environment makes product energy itself, on this basis can't be because of after spaced lamp bar, affecting the suitable effects that spectators watch, and high production capacity requires LED, structure, production efficiency is optimized to design.And on the face shield of existing LED display, the both sides up and down of through hole arrange the fin that is raised in face shield that horizontal direction or the left and right sides arrange vertical direction, this fin is for the protection of LED lamp pearl.LED shows that module is generally vertically or level is installed, when watching display screen, spectators can shape have a certain degree, and the fin that is raised in face shield is higher than LED lamp pearl, thereby can block the light that LED lamp pearl sends when spectators watch LED to show module, affect the viewing effect of spectators to display screen.
3, be mostly that the lamp plate that directly will show module directly is fixed on metal backing in existing display screen structure, though can make lamp plate circuit behind directly contact with metal backing and facilitate distributing of its heat, but due to chip components and parts protuberate being arranged on circuit, just must be on metal backing correspondence position button hole, thereby lamp plate can be fixed on metal backing, so do, the process-cycle of detaining first hole is long, and the technological requirement machining precision is high, be unfavorable for that LED shows the production in enormous quantities of module.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, provide that a kind of visual effect is good, excellent heat dissipation performance and being easy to is produced, LED display and the LED display device of assembling.
The object of the present invention is achieved like this:
A kind of LED display, it comprises face shield, lamp plate, heat-conducting padding plate, backboard, control panel and housing, and described face shield, lamp plate, heat-conducting padding plate, backboard are superimposed successively, and it is fixing on backboard that described case cover described control panel; Described lamp plate is in towards face shield one side, being provided with LED lamp pearl, and described lamp plate is in be provided with the chip of protuberate towards heat-conducting padding plate one side; Described face shield covers in outside lamp plate, which is provided with the through hole for the LED lamp pearl of accommodating lamp plate, between the through hole on OFP surface, is provided with boss; Described heat-conducting padding plate is located between described lamp plate and described backboard, and heat-conducting padding plate is made by Heat Conduction Material, and on it, the chip of corresponding lamp plate is provided with the device slot to make way; Described control panel is provided with control chip on surface, and the surface of described control panel is provided with waterproof membrane and glue-line from inside to outside successively, and described waterproof membrane wraps up the chip on described control panel surface, and described glue-line is wrapped in outside waterproof membrane; Described surface of shell is provided with air outlet opening, louvre, and housing sidewall is provided with thermovent, and described louvre is corresponding being arranged on two sidewalls that housing is relative in twos.
Further, the upper surface of the boss on described face shield surface is higher than the LED lamp pearl be contained in described through hole; Described boss be shaped as half elliptic or truncated cone-shaped or cylindrical or multi-edge column-shaped.
Further, described heat-conducting padding plate periphery/edge is provided with the Soft Roll limit; The heat-conducting padding plate edge also is provided with face shield slot to make way is installed.
Further, described heat-conducting padding plate is that heat-conducting plastic is made, and described Soft Roll limit is flexible plastic; Described backing plate and Soft Roll limit are that double-shot moulding is one-body molded.
Further, described control panel surface forms glue-line by gum dipping process, and the thickness of described glue-line is 0.3mm-0.7mm; Described waterproof membrane forms by the vacuum coating equipment plated film.
Further, described housing sidewall also is provided with the connector mounting hole; The thermovent of described housing comprises the first thermovent and the second thermovent, and described the first thermovent along continuous straight runs is arranged on the two side that housing is relative, and described the second thermovent vertically is arranged on the two side that housing is relative.
Further, be provided with fan accommodating cavity and/or power supply accommodating cavity in housing; Housing is provided with air outlet opening in the chamber wall of corresponding fan accommodating cavity, and in the chamber of corresponding power accommodating cavity, wall is provided with louvre.
Further, described housing is provided with handle, and four corners of housing are provided with foot pad, are provided with the arc linkage section between described foot pad and form described handle.
The present invention also provides a kind of LED display device, and it comprises web member, web member group and a plurality of as the described LED display of claim 1-8 any one; Described web member group is arranged at the edge of the backboard of LED display, and the web member group comprises register pin and mount pad; Described mount pad is provided with connecting thread, and described register pin is arranged at the mount pad side; Described web member comprises the web member body, in web member body middle part, is provided with the bolt mounting groove, and web member body surrounding has extended to form Connection Block; Described Connection Block is provided with through hole, and the through hole adaptation is socketed with breaker bolt, and the Connection Block body also is provided with the location shrinkage pool in the through hole side; LED display is spliced to form described LED display device by web member and coordinating of web member group, the be spirally connected connecting thread of mount pad of web member group of the breaker bolt correspondence of described web member, the location shrinkage pool adaptation of the register pin of described web member group and described web member body is spacing.
Further, the Connection Block side of described web member body is provided with at least two location shrinkage pools, the through hole of Connection Block is step-like, an end and breaker bolt that size is less are suitable, be provided with groove between the Connection Block of web member body and be connected with reinforcement, the bolt mounting groove of web member body is elongated; Described breaker bolt is provided with the stop bit boss in the end that screw thread is set, and breaker bolt is limited in the through hole of Connection Block by this stop bit boss socket;
Described mount pad sidepiece is provided with at least two register pins; The back plate edges of described LED display is provided with step-like through hole, described mount pad comprises block end and link, link is through described step-like through hole, described block end is spacing by the step of step-like through hole, described connecting thread is set on described link, described connecting thread is external thread, and corresponding link external thread is provided with the nut locking; Described register pin comprises pin and bolt, and corresponding is provided with through hole in back plate edges, and described pin is set in through hole from backboard through hole one side, and described bolt is by the opposite side fixing pin that is spirally connected; Described dowel ends is the chamfering section, and middle part is the column positioning section, and afterbody is the socket section, and described socket section outside dimension is less than column positioning section outside dimension, and described bolt is bolted in pin socket section.
Beneficial effect of the present invention has been to adopt surface to have the face shield of boss; can protect better the LED lamp pearl on lamp plate, avoid it to be damaged by collision, reduce again blocking the light of LED lamp pearl emission; increase the visible angle of LED, improved the satisfaction that spectators watch.Add in addition heat-conducting padding plate, processed thereby without the chip because of projection after lamp plate, backboard buckles to hole, greatly improved the production efficiency of product.And be provided with louvre on back cover, also in the bottom periphery of housing, be provided with thermovent simultaneously, housing integral body is pass-through type, contribute to the inside and outside cross-ventilation of housing, strengthen radiating effect, consider that waterproof problem done water-proofing treatment to control panel simultaneously, even make, do not use fan also can meet radiating requirements.
The accompanying drawing explanation
Below in conjunction with accompanying drawing in detail concrete structure of the present invention is described in detail
The structure explosive view that Fig. 1 is LED display of the present invention;
The structure explosive view of the demonstration module that Fig. 2 is LED display of the present invention;
The heat-conducting padding plate structural representation that Fig. 3 is LED display of the present invention;
The face mask structure schematic diagram that Fig. 4 is LED display of the present invention;
The heat-conducting padding plate partial structurtes cut-open view that Fig. 5 is LED display of the present invention;
The face shield partial structurtes cut-open view that Fig. 6 is LED display of the present invention;
The control panel structure cut-open view that Fig. 7 is LED display of the present invention;
The shell structure schematic diagram that Fig. 8 is LED display of the present invention;
The housing vertical view that Fig. 9 is LED display of the present invention;
The case side view that Figure 10 is LED display of the present invention;
The structure rear view that Figure 11 is single led display screen in LED display device of the present invention;
The backboard side view that Figure 12 is single led display screen in LED display device of the present invention;
Figure 13 is local structure for amplifying schematic diagram in Figure 12;
Figure 14 is LED display device combination schematic diagram of the present invention;
The connecting-piece structure schematic diagram that Figure 15 is LED display device of the present invention.
2, face shield; 2-1, through hole; 2-2, boss;
3, backboard; 3-1, web member group; 3-2, register pin; 3-3, pin; 3-4, bolt; 3-5, chamfering section; 3-6, column positioning section; 3-7, mount pad; 3-8, external thread; 3-9, nut;
4, web member body; 4-1, Connection Block; 4-2, bolt mounting groove; 4-3, locating slot; 4-4, breaker bolt; 4-5, stop bit boss; 4-6, reinforcement;
5, control panel; 5-1, waterproof membrane; 5-2, glue-line;
6, backboard;
7, lamp plate; 7-1, chip;
8, heat-conducting padding plate; 8-1, device slot to make way; 8-2, Soft Roll limit;
9, housing; 9-1, louvre; 9-2, handle; 9-3, air outlet opening; 9-4, connector mounting hole; 9-5, the first thermovent; 9-6, the second thermovent.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, the present invention relates to a kind of LED display, it comprises face shield 2, lamp plate 7, heat-conducting padding plate 8, backboard 3, control panel 5 and housing 9.Wherein face shield 2, lamp plate 7, heat-conducting padding plate 8, backboard 3 successively superimposed composition show module, it is fixing on backboard 3 that housing 9 is covering described control panel 5.
As Fig. 2, LED shows module superimposed face shield 2, lamp plate 7, heat-conducting padding plate 8 and backboard 6 successively.
Wherein, lamp plate 7 is intended for face shield 2 one sides and is provided with LED lamp pearl, and corresponding face shield 2 is provided with through hole 2-1, and face shield 2 covers in outside lamp plate 7, and in its through hole 2-1, accommodating described LED lamp pearl plays the purpose of protection LED lamp pearl.
The opposite side of lamp plate 7, be that corresponding surface is provided with the chip 7-1 of protuberate to heat-conducting padding plate 8 one sides, corresponding heat-conducting padding plate 8 is provided with device slot to make way 8-1, heat-conducting padding plate 8 integral body are made by Heat Conduction Material, can effectively the heat of lamp plate 7 be delivered on metal backing 6 like this, can not make the excess Temperature of lamp plate 7, play the heat conduction and heat radiation effect, heat-conducting padding plate 8 is located between lamp plate 7 and backboard 6, between heat-conducting padding plate 8 surface and lamp plate 7, reach with backboard 6 between corresponding being provided with for spacing pilot hole/reference column 8-3.
Referring to Fig. 3, Fig. 5, as an embodiment, heat-conducting padding plate 8 in this patent comprises opposing first surface and second surface, in order to guarantee being connected of heat-conducting padding plate 8 and lamp plate 7, backboard 6, heat-conducting padding plate 8 is provided with reference column in the corresponding lamp plate 7 of first surface, be provided with hole clipping on corresponding lamp plate 7, and the same corresponding backboard 6 of the second surface of heat-conducting padding plate 8 is provided with reference column 8-3, on backboard 6 correspondence be provided with pilot hole.The device slot to make way 8-1 thickness on these external heat-conducting padding plate 8 surfaces should be not less than the maximum height that lamp plate 7 protrudes from element (normally chip 7-1), thereby can avoid the process-cycle in original technique dorsulum 6 processing button holes.
Further, periphery/the edge of heat-conducting padding plate 8 is provided with Soft Roll limit 8-4, best, surrounding at heat-conducting padding plate 8 is provided with Soft Roll limit 8-2, and heat-conducting padding plate 8 integral body can adopt heat-conducting plastic to make, described Soft Roll limit 8-2 adopts flexible plastic/flexible glue, and heat-conducting padding plate 8 can be made by double-shot moulding is one-body molded with Soft Roll limit 8-2 thus, production efficiency is high, has greatly shortened production hour.In addition, also can face shield installation slot to make way 8-2, the installation of Convenient mask 2 be set correspondence at the edge of heat-conducting padding plate 8.
Referring to Fig. 4, Fig. 6, as an embodiment, the through hole 2-1 of the face shield 2 in this patent is that on corresponding lamp plate 7, LED lamp pearl is the dot matrix arrangement, and also be provided with through hole 2-2 between through hole 2-1, the shape of through hole 2-2 can be half elliptic, or truncated cone-shaped, or cylindrical, or multi-edge column-shaped, best, the upper surface of boss 9-1 is raised in described face shield 2 and higher than the LED lamp pearl be contained in described through hole 2-1, to protect better LED lamp pearl, avoid it to be damaged by collision, and because through hole 2-2 is four endpoint locations outside that only is arranged on through hole 2-1, thereby reduced blocking the light of LED lamp pearl emission, increased the visible angle to LED display, improved the satisfaction that spectators watch.
For control panel 5 structures that this patent was provided, on the surface of control panel 5, be provided with control chip as Fig. 7, the surface of described control panel 5 is provided with transparent waterproof membrane 5-1 and glue-line 5-2 from inside to outside successively.
Directly carry out plated film and dipping process on control panel 5, form waterproof membrane 5-1 and glue-line 5-2, make the control panel 5 can waterproof, at first waterproof membrane 5-1 is set, and impregnation again, form glue-line 5-2 thereafter, make waterproof effect more lasting, make control panel directly to contact with water.Preferably the thickness of described glue-line 5-2 is 0.3-0.7mm, through long-term research and test, and best glue-line 5-2 thickness 0.5mm.
The process of above-mentioned waterproof is specific as follows:
At first step 1. is that control chip is arranged on control panel by IC, and control chip, for control panel is controlled, is tested control panel afterwards, as defective, is keeped in repair, and carries out next step as qualified;
Paste waterproof membrane 5-1 on step 2. control panel, the mode of pad pasting is a variety of, in the present embodiment, adopts vacuum coating equipment directly to carry out plated film, and the plated film time is 4-8 hour;
Control panel after step 3. plated film carries out waterproof test, if test failure carry out step 2 after the waterproof membrane 5-1 on it is removed, again if test passes enters step 4;
The control panel that step 4. will plate waterproof membrane 5-1 carries out impregnation, and the thickness of impregnation is 0.3-0.7mm, and preferred thickness is 0.5mm, has strengthened the stability of waterproof membrane 5-1 and the waterproof effect of control panel.
Impregnation in step 4 can adopt impregnation twice, and impregnation is generally continuous impregnation twice, and the impregnation time is 20 seconds, and impregnation is once just crossed baking oven simultaneously, and oven temperatures can be arranged on 70-80 degree centigrade, after baking, reaches rapid solidification.
After processing, control panel can directly contact with water, does not worry having influence on the circuit structure of control panel inside.
As further improvement, also can be to forming all circuit boards of LED display, as lamp plate, drive plate, control panel and power supply etc. easily shine into the accessory of short circuit equal plated film, impregnation and encapsulating process, wherein lamp plate, control panel and control panel adopt plated film and dipping process, and power acquisition is processed with encapsulating, make whole LED display directly to contact with water, and do not need casing, reach gentlier, thinner requirement.
Consult the housing 9 of Fig. 8-10 for adopting in this patent, housing 9 covers in the LED display rear portion, different from the closed back cover of common outdoor LED display, the surface of this patent middle shell 9 is provided with louvre 9-1, its sidewall also is provided with thermovent, be that housing 9 integral body are pass-through types, contribute to the inside and outside cross-ventilation of housing 9, strengthen radiating effect, the device that certain design of the pass-through type due to housing 9 must make its inner cover establish is exposed to outside, particularly moist, rainy problem, therefore during the whole practical application of product in it device need as the above-mentioned water-proofing treatment of doing.
Common, need to be covered with the main devices of LED display in housing 9, comprise control panel 5, power module etc., and also need the inside and outside wire rod of fixed telecommunication LED display simultaneously, therefore usually in housing 9, can be provided with the power supply accommodating cavity, according to heat radiation, need also the fan accommodating cavity can be set in some housing 9, and the louvre 9-1 in this patent is arranged on the chamber wall of housing 9 corresponding power accommodating cavities, and housing is provided with air outlet opening 9-3 in the chamber wall of corresponding fan accommodating cavity.Thus, the fan that is arranged at the Hot-air fan accommodating cavity can adopt common fan leaf type, also can adopt forced-ventilated fan, thereby sends from the thermovent of housing 9 sidewalls by sucking wind, realizes the quick heat radiating purpose.
As above-mentioned, be provided with connector mounting hole 9-4 at housing 9 sidewalls, as an embodiment, preferably, housing 9 is equipped with thermovent in relative two side, optimum thermovent further is divided into the first thermovent 9-5 and the second thermovent 9-6, as Fig. 9, wherein the first thermovent 9-5 along continuous straight runs is arranged at the left side that housing 9 is relative in twos, on right two side, as Figure 10, and the second thermovent 9-6 vertically is arranged at relative upper of housing 9 in twos, on lower two side, in the heat radiation process, can make thus wind run through whole housing 9, extend the heat absorption path, strengthen radiating effect.
As another embodiment, also further be provided with handle on housing 9, in this programme, housing 9 is provided with foot pad in four corners on surface, be provided with the arc linkage section between described foot pad and form described handle 9-3, the product that so handle of structure is first is programmable more attractive in appearance on the whole, and handle is in housing 9 one integrated mass, provides one to control the effect of mentioning the LED display handle part after also can making housing 9 be arranged on LED display simultaneously.
The invention still further relates to a kind of LED display device, it comprises the LED display of web member 4, web member group 3-1 and a plurality of as above-mentioned structure, referring to Figure 14.In order to realize the splicing of a plurality of LED display, need establish web member group 3-1 at the edge of above-mentioned backboard 3, preferably, the edge that the needs of backboard connect the backboard 3 of adjacent LED display screen module all can arrange web member group 3-1.For example, when the backboard 3 of LED display module is square as Fig. 4, web member group 3-1 is arranged on four angles of backboard, thereby again by coordinating a web member body 4 can connect from four limits the backboard 3 of four adjacent LED display modules.
Concrete, the web member group 3-1 structure in the utility model is referring to Figure 12,13, and it comprises register pin 3-2 and mount pad 3-7.Wherein mount pad 3-7 is provided with connecting thread, also be provided with register pin 3-2 at mount pad 3-7 side, above-mentioned mount pad 3-7 and register pin 3-2 can coordinate with breaker bolt 4-4 and locating slot 4-3 on the Connection Block 4-1 of web member body 4 shown in Figure 15, realize connecting.Wherein register pin 3-2 can be provided by location, guiding and the spacing effect of providing, and preferably, mount pad 3-7 side is provided with at least two register pin 3-2, thereby also can play, prevents that web member body 4 is in the effect in relative rotation of the backboard 3 of LED display module.
As an embodiment, the mounting structure of above-mentioned mount pad 3-7 is: backboard 3 edges of LED display module are provided with step-like through hole, described mount pad 3-7 comprises block end and link, link is through described step-like through hole, described block end is spacing by the step of step-like through hole, described connecting thread is set on described link, and described connecting thread is that external thread 3-8 link external thread is provided with nut 3-9.
Equally, as an embodiment, the mounting structure of above-mentioned register pin 3-2 is: it comprises pin 3-3 and bolt 3-4, and corresponding is provided with through hole equally in back plate edges, pin 3-3 is set in through hole from backboard through hole one side, and described bolt 3-4 is by the opposite side fixing pin that is spirally connected.
For convenient, peg graft in addition, preferably, the end of above-mentioned pin 3-3 is chamfering section 3-5, and middle part is column positioning section 3-6, and afterbody is the socket section, and described socket section outside dimension is less than column positioning section 3-6 outside dimension.
Referring to Figure 15, the middle part of concrete above-mentioned web member body 4 is provided with bolt mounting groove 4-2, and an outer bolt can be fixed in whole web member body 4 such as positions such as metopes by this bolt mounting groove 4-2.And web member body 4 surroundings have extended to form Connection Block 4-1, the corresponding backboard 3 that connects a LED display module of each Connection Block 4-1, be connected with reinforcement 4-6 between Connection Block 4-1.Further, consider prevent this web member body 4 without the time breaker bolt 4-4 on Connection Block 4-1 be unlikely to lose, the end that also can screw thread be set at breaker bolt 4-4 is provided with stop bit boss 4-5, thereby breaker bolt 4-4 can be limited in the through hole of Connection Block 4-1 by this stop bit boss 4-5 socket.By said structure, the backboard 3 of LED display module of the present utility model can complete installation such as the web member body 4 of structure herein fast and easily by one.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.