Waterproof cover for LED display

Abstract

The utility model discloses a waterproof cover for LED display, which is formed by regularly arranging hole bodies, connecting parts are arranged among the hole bodies, the regularly arranged hole bodies are connected together by the connecting parts, and at least one of the front surface and the back surface of the waterproof cover is provided with a glue sealing area. At least one edge of the waterproof cover is of a tooth-shaped edge structure formed by arranging the half-hole bodies and the connecting parts. According to the waterproof cover, the glue sealing area is arranged on at least one of the front face and the back face of the waterproof cover, moisture permeation can be effectively prevented, and the tooth-shaped edge structure of the waterproof cover is formed by arranging the half-hole bodies and the connecting parts, so that a plurality of waterproof covers can be seamlessly spliced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of LED display, in particular to a waterproof cover for LED display. BACKGROUND

[0002] A regular through hole is arranged on a PCB carrier plate, and an LED light emitter is arranged in an array in a non-through hole area to form a transparent display device, which is widely used for indoor advertising and display. This type of display device is light and thin, and transparent, and does not affect the vision when not playing, and can achieve the technical effect of transparent display.

[0003] However, when this type of display device is used outdoors, it is easily affected by external environmental factors such as rain, humidity, dust, etc., which can lead to performance degradation or equipment damage. Therefore, in order to improve the applicability of this type of transparent display device in outdoor environments, it is necessary to effectively waterproof and dustproof it.

[0004] Therefore, it is particularly important to develop a solution that can meet the transparent LED display effect and has good waterproof performance. CONTENT OF THE INVENTION

[0005] Therefore, the utility model discloses a waterproof cover for LED display, which can realize waterproof and dustproof effects without affecting the transparent display of the transparent screen.

[0006] The present application specifically as follows:

[0007] A waterproof cover for LED display, the waterproof cover is regularly arranged by a plurality of holes, the holes are provided with connecting parts, and the connecting parts connect the regularly arranged holes together.

[0008] At least one of the front and back of the waterproof cover is provided with a glue sealing area.

[0009] At least one side of the waterproof cover is a tooth-shaped side structure composed of a half hole and the connecting part.

[0010] In one possible implementation, the hole includes a first hole and a second hole, the first hole includes a first hole front end face and a first hole rear end face, the second hole includes a second hole front end face and a second hole rear end face, and the second hole front end face is arranged on the first hole rear end face.

[0011] In one possible implementation, the inner hole shape and size of the first hole and the second hole are the same, and the inner hole shapes of the first hole and the second hole are arranged together in overlapping connection.

[0012] In a possible implementation, the outer sidewall of the first hole body is higher than the outer sidewall of the second hole body.

[0013] In a possible implementation, the connecting part is arranged on the outer sidewall of the first hole body and comprises a bottom surface and a top surface, and the bottom surface is aligned with the rear end surface of the first hole body.

[0014] In a possible implementation, the top surface is aligned with the front end surface of the first hole body.

[0015] In a possible implementation, the front surface and the back surface of the waterproof cover are both provided with a sealing area, and the sealing area comprises a first sealing area and a second sealing area.

[0016] The first sealing area is arranged on the front surface of the waterproof cover and is composed of a plurality of closed or semi-closed units enclosed by the outer sidewall of the first hole body and the sidewall of the connecting part.

[0017] The second sealing area is arranged on the back surface of the waterproof cover and is a plurality of closed or semi-closed areas formed between the outer sidewalls of the regularly arranged second hole bodies.

[0018] In a possible implementation, the connecting part is arranged integrally with the hole body.

[0019] The waterproof cover of the utility model can be installed on a transparent screen with holes, the hole bodies arranged regularly on the waterproof cover make the waterproof cover not affect the transparent display effect of the transparent screen. Meanwhile, at least one of the front surface and the back surface of the waterproof cover is provided with a sealing area, which can effectively prevent water and dust from penetrating, ensure the safe operation of the LED display device in an outdoor environment, and prolong the service life of the LED display device. In addition, the tooth-shaped edge structure of the waterproof cover is composed of the half hole bodies and the connecting parts, the edge of the waterproof cover does not block the transparent screen, and a plurality of waterproof covers can be seamlessly spliced, the size of the waterproof cover can be flexibly adjusted according to actual needs, so as to adapt to transparent screens of different specifications. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0021] Wherein:

[0022] Figure 1 It is the front surface perspective view of a waterproof cover for LED display of the utility model;

[0023] Figure 2 is a back perspective view of a waterproof cover for LED display according to the present application;

[0024] Figure 3 is a front partial enlarged view of a waterproof cover for LED display according to the present application;

[0025] Figure 4 is a back partial enlarged view of a waterproof cover for LED display according to the present application;

[0026] Figure 5 is a side view of a hole body of a waterproof cover for LED display according to the present application;

[0027] Figure 6 is a side view of a hole body and a connecting part of a waterproof cover for LED display according to the present application;

[0028] Figure 7 is a partial enlarged view of a second glue sealing area of a back of a waterproof cover for LED display according to the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] There is a punched PCB carrier in the prior art, which is provided with regular through holes, and LED lamp beads are arranged in the non-through area to form a transparent display device, which can realize high-quality LED transparent display effect. However, when used outdoors, such display devices are easily affected by external factors such as rain, humidity and dust, which can easily cause equipment damage or performance degradation. Therefore, the transparent display device has deficiencies in waterproof and dustproof performance, and cannot meet the use requirements of outdoor environment.

[0031] Based on this, the present application provides a waterproof cover 1 for LED display, which can be arranged on a punched transparent screen to provide waterproof and dustproof effect for the transparent screen.

[0032] As shown in Figure 1 , Figure 2 A waterproof cover 1 for LED display is formed by regularly arranging hole bodies 10, connecting parts 20 are arranged between the hole bodies 10, and the hole bodies 10 and the connecting parts 20 are integrally arranged, and the connecting parts 20 connect the regularly arranged plurality of hole bodies 10 together.

[0033] The waterproof cover 1 can be used in combination with a perforated transparent screen to provide dustproof and waterproof effects for the transparent screen. In addition, the regularly arranged holes 10 are provided on the waterproof cover, which do not block the through holes on the LED transparent screen and do not affect the display effect of the transparent screen.

[0034] Further, such as Figure 5 As shown, the hole body 10 includes a first hole body 11 and a second hole body 12, and the inner holes of the first hole body 11 and the second hole body 12 ( Figure 5 The dotted line in the middle hole 10 represents the inner hole. The shapes and sizes of the first hole 11 and the second hole 12 are identical, and the inner holes overlap and connect with each other. The first hole 11 includes a first hole front end face 111 and a first hole rear end face 112. The second hole 12 includes a second hole front end face and a second hole rear end face 123. The second hole 12 front end face is disposed on the first hole rear end face 112.

[0035] like Figure 6 As shown, the connecting portion 20 includes a bottom surface 22 and a top surface 21 , and the bottom surface 22 of the connecting portion 20 is aligned with the rear end surface 112 of the first hole body.

[0036] It is understood that the shape of the outer wall of the first hole body 11 and the second hole body 12 depends on the shape of the through hole on the matching transparent screen. This application does not limit the shape of the outer wall of the first hole body 11 and the second hole body 12, and allows them to be various regular or irregular shapes such as circular, rectangular, and diamond.

[0037] like Figure 5 As shown in Figure 5 It is a side view of the hole body 10. The first hole body 11 and the second hole body 12 also include outer walls. The connecting part 20 is arranged on the outer wall 113 of the first hole body. The outer wall 113 of the first hole body is higher than the outer wall 121 of the second hole body. The following is an example of the outer walls of the first hole body 11 and the second hole body 12 being circular.

[0038] When the outer walls of the first hole 11 and the second hole 12 are circular, the outer wall 113 of the first hole is higher than the outer wall 121 of the second hole, which means that the outer diameter of the first hole 11 is larger than the outer diameter of the second hole 12. When the waterproof cover 1 is combined with the transparent screen, the second hole 12 can be embedded in the through hole of the LED transparent screen. To ensure that the waterproof cover 1 is relatively fixed in the horizontal direction, the second hole 12 should cooperate with the through hole on the transparent screen. This allows the second hole 12 to be smoothly embedded, while preventing the waterproof cover 1 from excessively displacing in the horizontal direction, avoiding misalignment during the sealing process.

[0039] Moreover, because the outer sidewall 113 of the first hole body is higher than the outer sidewall 121 of the second hole body, when the second hole body 12 is embedded in the through hole of the transparent screen, the rear end surface 112 of the first hole body 11 will be in contact with the non-through area of the transparent screen, and the outer sidewall of the first hole body 11 and the outer sidewall of the connecting portion can enclose the unit 41 of the first sealing area to prevent leakage of the first sealing area.

[0040] In addition, by setting the first hole body outer sidewall 113 higher than the second hole body outer sidewall 121, when the back of the waterproof cover 1 is filled with glue, the glue liquid on the back can also be prevented from flowing to the front. This will be described in detail below and will not be repeated here.

[0041] Further, in the embodiment, the waterproof cover 1 also includes a sealing area, which is composed of a first sealing area and a second sealing area. As shown in Figure 3 the first sealing area is located on the front of the waterproof cover 1 Figure 3 and is enclosed by the first hole body outer sidewall 113 and the sidewall of the connecting portion 20.

[0042] When the waterproof cover 1 is installed on the transparent screen, the first sealing area can surround the LED light emitter on the transparent screen, and by filling the waterproof glue layer in the first sealing area, the LED light emitter and the surrounding circuit can be effectively protected from water and dust. In addition, the first sealing area can also stabilize the waterproof cover 1 on the transparent screen, thereby providing waterproof and dustproof effects for the transparent screen.

[0043] In some embodiments, the top surface 21 of the connecting portion is aligned with the front end surface 111 of the first hole body 11, i.e., the height of the connecting portion 20 and the first hole body 11 is h, at this time, the height of the first hole body outer sidewall 113 and the sidewall of the connecting portion 20 surrounding the first sealing area is the same, i.e., h. When filling the waterproof glue layer in the first sealing area, the glue liquid will not flow out naturally, i.e., the unit 41 of the first sealing area is a closed area.

[0044] In other embodiments, in the unit 41 surrounded by the first hole body outer sidewall 113 and the sidewall of the connecting portion 20, the top surface 21 of the connecting portion can be lower than the front end surface 111 of the first hole body 11, at this time, the height of the sidewall of the connecting portion 20 surrounding the first sealing area is lower than the height of the first hole body outer sidewall 113, when filling the waterproof glue layer, after filling a unit 41, the glue layer will naturally flow to other units 41, thereby improving the efficiency of glue filling, at this time, the unit 41 of the first sealing area is a semi-closed area.

[0045] It is understood that the height of the first adhesive sealing area depends on the required adhesive sealing thickness, that is, the thickness that the adhesive sealing area needs to reach in order to achieve a waterproof effect. Therefore, this application does not impose a limitation on the height of the first adhesive sealing area and can be adjusted according to actual conditions.

[0046] In some large transparent screens, to address the issue of insufficient power supply to the remote LED emitters, the power supply circuit is thickened. Due to limited space within the carrier board, a thickened power supply circuit is installed on the back of the LED display carrier board. However, the power supply circuit is exposed to the outside of the carrier board and is easily affected by rain and dust. Therefore, the back of the transparent screen also needs to be waterproofed. If the glue is directly sealed on the back of the transparent screen, there will be through-holes on the transparent surface, which will cause glue leakage at the through-holes and solidify there, affecting the display effect of the transparent screen. Therefore, direct sealing is more difficult.

[0047] Based on this, the back of the waterproof cover 1 proposed in this embodiment is also provided with a glue-sealed area. This is the enclosed or semi-enclosed area formed between the outer side walls 121 of the regularly arranged second holes of the waterproof cover 1, i.e., the second glue-sealed area. As described earlier in this application, when the waterproof cover 1 is mated with the transparent screen, the second holes 12 are embedded in the through-holes of the transparent screen and pass through the through-holes of the transparent screen, extending a certain length beyond the plane of the back of the transparent screen. The excess portion acts as a dam, isolating the through-holes of the transparent screen when the waterproof glue layer is filled, thereby preventing glue from leaking from the through-holes of the transparent screen during sealing.

[0048] In some embodiments, as Figure 7 As shown, the bottom surface 22 of the connection portion at the edge of the waterproof cover 1 ( Figure 7 The dotted line frame portion) can be aligned with the rear end face 112 of the first hole body. At this time, on the back of the waterproof cover, a second glue sealing area is formed between the regularly arranged plurality of second hole body outer side walls 121. Because the bottom surface of the connecting portion 20 at the edge of the waterproof cover is aligned with the rear end face 112 of the first hole body, it is not aligned with the rear end face 123 of the second hole body, that is, from Figure 7 From a middle perspective (i.e., viewed from the back of the waterproof cover), the height of the connecting portion 20 at the edge of the waterproof cover is lower than the height of the second hole 12 , and the second glue-sealed area formed at this time is a semi-enclosed area.

[0049] In other embodiments, the connection portion 20 ( Figure 7 The bottom surface of the second hole body (in the dotted box part) can be aligned with the rear end surface 123 of the second hole body. At this time, on the back of the waterproof cover 1, a second glue sealing area is formed between the regularly arranged multiple second hole body outer side walls 121 and the connecting part. Because the bottom surface of the connecting part 20 at the edge of the waterproof cover is aligned with the rear end surface 123 of the second hole body, the second glue sealing area formed at this time is a closed area.

[0050] It needs to be explained that, still taking the first hole body 11 and the second hole body 12 as circular for example, in order to enable the second hole body 12 to be embedded in the through hole on the transparent screen, the second hole body 12 should be matched with the through hole on the transparent screen. Therefore, there may still be some glue flowing to the front surface of the transparent screen along the gap between the second hole body 12 and the through hole on the transparent screen when the glue is poured on the back surface, therefore, the first hole body outer side wall 113 is higher than the second hole body outer side wall 121 in the embodiment, that is, the outer diameter of the first hole body is greater than the through hole, when the waterproof cover is installed on the transparent screen, the first hole body rear end surface 112 is flat and overlapped on the non-through area on the front surface of the transparent screen, which is equivalent to forming a tight annular structure beside the through hole on the front surface of the transparent screen, so that the glue does not affect the front surface of the transparent screen when pouring glue on the back surface of the LED carrier plate, at the same time, the glue left in the gap between the second hole body 12 and the through hole of the transparent screen can also play a sealing protection role.

[0051] Therefore, in the embodiment, by setting the second glue sealing area, that is, the closed or semi-closed area formed between the second hole body outer side walls 121, the problem of waterproofing the back surface of the transparent screen can be solved.

[0052] It can be understood that the length of the second hole body 12 beyond the transparent screen depends on the thickness of the back surface glue sealing, that is, the thickness that the glue sealing area needs to reach in order to achieve the waterproof effect, therefore, the length of the second hole body 12 beyond the transparent screen is not limited in the embodiment.

[0053] In some display scenarios requiring large size, it is usually necessary to splice multiple smaller transparent screens to obtain a large transparent screen. In order to affect the display effect and realize seamless splicing, the edge of the transparent screen is usually a tooth-shaped edge arranged by half through holes and non-through areas.

[0054] Based on this, in the embodiment, at least one side of the waterproof cover 1 is provided with a tooth-shaped edge structure 30 arranged by the half hole body 10 and the connecting part 20, when the waterproof cover 1 is installed on the transparent screen, the tooth-shaped edge structure 30 of the waterproof cover 1 does not block the tooth-shaped edge on the transparent screen. Moreover, two waterproof covers 1 can be spliced seamlessly through the tooth-shaped structure 30. In the splicing process, two half hole bodies are combined into a complete hole body 10, and two half connecting parts are also spliced to form a complete connecting part 20, thereby realizing seamless connection. By setting the tooth-shaped structure on at least one side of the waterproof cover 1, not only can the tooth-shaped edge of the transparent screen not be blocked, but also the waterproof cover 1 can be spliced into a larger waterproof cover to meet the waterproofing needs of large-size transparent screens.

[0055] It needs to be pointed out that the embodiment does not limit the waterproof cover 1 to have only one side with the tooth-shaped structure 30, in fact, part or all of the edges of the waterproof cover 1 can be provided with the tooth-shaped structure 30, the specific design depends on the actual application scenario, and the application does not limit this.

[0056] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A waterproof cover for LED display, characterized in that: The waterproof cover is formed by a plurality of holes arranged regularly; Connecting parts are provided between adjacent holes, and the connecting parts connect the regularly arranged holes together; At least one of the front and back sides of the waterproof cover is provided with a glue sealing area; At least one side of the waterproof cover is a toothed edge structure composed of a semi-porous body and the connecting portion.

2. The waterproof cover according to claim 1, wherein: The hole body includes a first hole body and a second hole body, the first hole body includes a first hole body front end face and a first hole body rear end face, the second hole body includes a second hole body front end face and a second hole body rear end face, and the second hole body front end face is arranged on the first hole body rear end face.

3. The waterproof cover according to claim 2, wherein: The inner hole shapes and sizes of the first hole body and the second hole body are the same, and the inner hole shapes of the first hole body and the second hole body are overlapped and connected together.

4. The waterproof cover according to claim 2, wherein: The outer wall of the first hole body is higher than the outer wall of the second hole body.

5. The waterproof cover according to any one of claims 3 or 4, characterized in that: The connecting portion is arranged on the outer side wall of the first hole body and includes a bottom surface and a top surface. The bottom surface is aligned with the rear end surface of the first hole body.

6. The waterproof cover according to claim 5, wherein: The top surface is aligned with the front end surface of the first hole body.

7. The waterproof cover according to claim 2, wherein: The front and back of the waterproof cover are both provided with glue sealing areas, and the glue sealing areas include a first glue sealing area and a second glue sealing area; The first glue sealing area is arranged on the front of the waterproof cover and is composed of a closed or semi-closed unit formed by the outer side walls of the plurality of first holes and the side walls of the connecting portion; The second glue-sealed area is arranged on the back of the waterproof cover and is a closed or semi-closed area formed between the outer side walls of a plurality of regularly arranged second hole bodies.

8. The waterproof cover according to claim 1, wherein: The connecting portion is integrally arranged with the hole body.

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