Connection structure of mask

Abstract

The embodiment of the utility model provides a connecting structure of a face mask. The connecting structure comprises a PCB, the face mask and a buckle column, wherein the face mask and the buckle column are in the same color. The PCB is provided with fixing holes for the buckle columns to penetrate through, and LED lamp beads are distributed on the PCB. The face cover faces the LED lamp beads, is arranged above the PCB and is connected with the ends of the buckling columns in a buckled mode. And the buckling columns are connected with the PCB through glue. In the embodiment of the utility model, the mask is connected with the end part of the buckle pillar by using the buckle, the buckle pillar is connected with the PCB by using the adhesive, and the mask and the buckle pillar are in the same color, so that the connecting structure of the mask is simpler, the complicated manufacturing process is avoided, and the production cost of the product is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screens, in particular to a connection structure of a mask. Background Art

[0002] The mask connection structure includes a PCB and a mask mounted on it. Most current mask connection structures connect the mask and PCB via snap-on posts. These posts are soldered to the PCB and then snapped into place with the mask. Because of this soldering, the posts are typically made of copper. The end of the post that connects to the mask needs to be blackened to match the color of the mask, making the display darker. This means one end of the post must retain its copper color, while the other end must be blackened. This complex process increases product cost. Utility Model Content

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a connection structure of a mask that solves the above problems or at least partially solves the above problems.

[0004] The present invention provides a mask connection structure, which includes:

[0005] The invention comprises a PCB board, a mask of the same color and a snap-on column; the PCB board is provided with fixing holes for the snap-on column to pass through, and LED lamp beads are arranged on the PCB board; the mask is arranged above the PCB board facing the LED lamp beads and is snap-connected to the end of the snap-on column; the snap-on column and the PCB board are connected by gluing.

[0006] Furthermore, the snap-on column includes a fixing portion connected to the PCB board and a connecting portion located on the side of the PCB board facing the mask, and a concave ring is provided on the connecting portion;

[0007] The mask is provided with a connecting hole for the buckle column to pass through, and the hole diameter of the connecting hole is larger than the diameter of the concave ring.

[0008] Furthermore, the snap-on column also includes a bottom plate connected to the end of the fixing portion away from the connecting portion and located on a side of the PCB board away from the LED lamp beads, and the bottom plate is connected to the PCB board by gluing.

[0009] Furthermore, it also includes a metal gasket, which is sleeved on the column above the base plate, and the metal gasket is connected to the PCB board by welding or gluing, and the metal gasket is connected to the base plate by gluing.

[0010] Furthermore, a guide surface is provided at the end of the connecting portion away from the fixing portion.

[0011] Furthermore, at least one elastic piece extending toward the center of the connecting hole is provided on the inner wall of the connecting hole.

[0012] Furthermore, a locking slope is provided on a side of the elastic sheet away from the PCB board.

[0013] Furthermore, there are multiple elastic sheets, and the multiple elastic sheets are evenly distributed around the central axis of the connecting hole.

[0014] Furthermore, a light-transmitting hole is provided on the mask, and the LED lamp beads are arranged in the light-transmitting hole.

[0015] Furthermore, the mask and the buckle column are both made of black plastic.

[0016] In the technical solution provided by the embodiment of the present utility model, the connection structure of the mask includes a PCB board, a mask and a snap-on column; the PCB board is provided with a fixing hole for the snap-on column to pass through, and LED lamp beads are arranged on the PCB board; the mask is arranged above the PCB board facing the LED lamp beads; the mask and the ends of the snap-on column are connected by snaps and the snap-on column is connected to the PCB board by adhesive, and the mask and the snap-on column are the same color, which makes the connection structure of the mask simpler, avoids complicated manufacturing processes, and effectively reduces the product production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a three-dimensional structure of a connection structure of a mask provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 3 A schematic diagram of the connection structure of a buckle post and a metal gasket of a mask connection structure provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of a planar structure of a mask with a connection structure provided by an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B in the middle. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the embodiments of the present invention.

[0024] It should be noted that, in the description of the present invention, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" appears in the full text, its meaning is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that meet both A and B.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] Please refer to Figure 1 , which is a three-dimensional structural schematic diagram of a mask connection structure provided by an embodiment of the utility model, the mask connection structure includes a PCB board 10, a mask 20 of the same color, and a snap-on column 30; the PCB board 10 is provided with a fixing hole 110 for the snap-on column 30 to pass through, and LED lamp beads 120 are arranged on it; the mask 20 is arranged above the PCB board 10 facing the LED lamp beads 120 and is snap-connected to the end of the snap-on column 30; the snap-on column 30 and the PCB board 10 are connected by gluing.

[0027] Specifically, the PCB board 10 is arranged with a plurality of the LED lamp beads 120 in an array, and a plurality of the fixing holes 110 are provided in the gaps between the plurality of the LED lamp beads 120. One end of the snap-on column 30 can pass through the fixing hole 110 so that it is installed on the PCB board 10. Here, the snap-on column 30 and the PCB board 10 are fixedly connected by adhesive. Specifically, the inner wall of the fixing hole 110 or the outer wall of the snap-on column 30 is coated with adhesive. When one end of the snap-on column 30 passes through the fixing hole 110, an adhesive connection is formed between the two. The mask 20 is provided above the PCB board 10 so that a stacked pattern is formed therebetween. A snap-fit ​​structure adapted to the end of the snap-fit ​​column 30 is provided on the mask 20, so that an easily detachable snap-fit ​​connection is formed between the mask 20 and the end of the snap-fit ​​column 30, thereby allowing the mask 20 to be arranged on the PCB board 10 facing the LED lamp beads 120. The mask 20 and the snap-fit ​​column 30 for connecting the mask 20 are made of a material of the same color, so that the side of the mask 20 facing away from the PCB board 10 presents a uniform color outward.

[0028] In an embodiment of the present invention, the mask 20 and the ends of the snap posts 30 are connected by snaps, and the snap posts 30 are connected to the PCB board 10 by adhesive. At the same time, the mask 20 and the snap posts 30 are the same color, so that the connection structure of the mask is simpler, and at the same time, the complex manufacturing process of painting due to the different colors of the mask 20 and the snap posts 30 is avoided, thereby effectively reducing the product production cost.

[0029] Furthermore, please combine Figure 2-5 In other preferred embodiments of the present invention, the snap-on column 30 includes a fixing portion 310 connected to the PCB board 10 and a connecting portion 320 located on the side of the PCB board 10 facing the mask 20, and a concave ring 3201 is provided on the connecting portion 320;

[0030] The mask 20 is provided with a connecting hole 210 for the buckle column 30 to pass through, and the hole diameter of the connecting hole 210 is larger than the diameter of the concave ring 3201.

[0031] The cam 320 of the embodiment of the present invention is a kind of special cam 320 that is used for the fixing of the PCB board 10. The cam 320 of the embodiment of the present invention is a special cam 320 that is used for the fixing of the PCB board 10. The cam 320 of the embodiment of the present invention is a special cam 320 that is used for the fixing of the PCB board 10. The cam 320 of the embodiment of the present invention is a special cam 320 that is used for the fixing of the PCB board 10.

[0032] Furthermore, in other preferred embodiments of the present invention, the snap-on column 30 also includes a bottom plate 330 connected to the end of the fixing portion 310 away from the connecting portion 320 and located on the side of the PCB board 10 away from the LED lamp bead 120, and the bottom plate 330 is connected to the PCB board 10 by gluing.

[0033] Specifically, the base plate 330 and the fixing portion 310 are generally an integrated structure, which is arranged at the end of the fixing portion 310 away from the connecting portion 320, and its size is larger than the size of the end of the fixing portion 310. The base plate 330 is placed outside the fixing hole 110, that is, the side of the PCB board 10 away from the LED lamp bead 120. The side of the base plate 330 facing the PCB board 10 is connected to the PCB board 10 by gluing. In addition, the original gluing connection between the connecting portion 320 and the fixing hole 110 of the PCB board 10 is improved, thereby improving the connection firmness between the snap column 30 and the PCB board 10.

[0034] It should be pointed out here that if the adhesive connection between the side of the base plate 330 facing the PCB board 10 and the PCB board 10 is strong enough, sealant can also be provided between the connecting portion 320 and the fixing hole 110 of the PCB board 10 to ensure its sealing.

[0035] Furthermore, in other preferred embodiments of the present invention, a metal gasket 40 is also included, which is sleeved on the column above the base plate 330, and the metal gasket 40 is connected to the PCB board 10 by welding or gluing, and the metal gasket 40 is connected to the base plate 330 by gluing.

[0036] Specifically, the metal gasket 40 is disposed on the side of the base plate 330 facing the PCB board 10, i.e., it is sleeved onto the column of the connecting portion 310 located above the base plate 330. The metal gasket 40 is connected to the PCB board 10 above it by welding or gluing, while the metal gasket 40 is gluing to the base plate 330. This, combined with the existing gluing connection between the connecting portion 320 and the fixing hole 110 of the PCB board 10, enhances the connection strength between the snap-fit ​​column 30 and the PCB board 10. It should be noted that if the gluing connection between the side of the base plate 330 facing the PCB board 10 and the PCB board 10 is sufficiently strong, a sealant may also be provided between the connecting portion 320 and the fixing hole 110 of the PCB board 10 to ensure a tight seal. In addition, the metal gasket 40 has greater strength, which is usually greater than the strength of the PCB board 10. The addition of the metal gasket 40 can effectively reduce the impact on the PCB board 10 when the mask 20 is installed on the connecting part 320 of the snap column 30, thereby avoiding deformation and damage. In addition, the metal gasket 40 and the snap column 30 are bonded together with glue, which is more firmly bonded than the PCB board 10 and the snap column 30, thereby effectively improving the reliability of the structure.

[0037] Furthermore, in other preferred embodiments of the present invention, in order to facilitate the connection portion 320 to be smoothly inserted into the connection hole 210 and form a snap connection therewith, a guide surface 3202 is provided at the end of the connection portion 320 away from the fixing portion 310.

[0038] In addition, in other preferred embodiments of the present invention, at least one elastic piece 2101 extending toward the center of the connecting hole 210 is provided on the inner wall of the connecting hole 210 .

[0039] Specifically, the elastic sheet 2101 is located on the inner wall of the connecting hole 210 and extends toward the center of the connecting hole 210. When the guide surface 3202 of the connecting portion 320 passes through the connecting hole 210, at least a portion of the elastic sheet 2101 is buckled in the concave ring 3201, so that the connecting portion 320 and the connecting hole 210 are fixed.

[0040] Furthermore, there are multiple elastic sheets 2101, and the multiple elastic sheets 2101 are evenly distributed around the central axis of the connecting hole 210. The provision of multiple elastic sheets 2101 can make the connection between the connecting portion 320 and the connecting hole 210 more secure.

[0041] In a feasible implementation of this embodiment, there are four elastic pieces 2101 in each of the connecting holes 210. The elastic pieces 2101 and the mask 20 are integrally formed.

[0042] Furthermore, a locking slope 2102 is provided on a side of the elastic piece 2101 away from the PCB board 10 .

[0043] Here, the locking bevel 2102 is provided on the side of the elastic sheet 2101 away from the PCB board 10, so that it is easier for the connecting portion 320 to pass through from the side of the connecting hole 210 toward the PCB board 10 to the side away from the PCB board 10, that is, it is easier for the mask 20 to be installed on the connecting portion 320, while it is more difficult for the connecting portion 320 to pass through from the side of the connecting hole 210 away from the PCB board 10 to the side toward the PCB board 10, that is, it is more difficult to remove the mask 20 from the connecting portion 320. This can effectively prevent the connecting portion 320 from being accidentally separated from the connecting hole 210.

[0044] In addition, a light-transmitting hole 220 is provided on the mask 20 , and the LED lamp bead 120 is disposed in the light-transmitting hole 220 .

[0045] Specifically, a plurality of light-transmitting holes 220 are provided on the mask 20, and the number of the light-transmitting holes 220 is consistent with the number of the LED lamp beads 120. When the mask 20 is mounted on the snap-on columns 30, the LED lamp beads 120 are just placed in the light-transmitting holes 220, so that a display surface is formed on the side of the mask 20 facing away from the PCB board 10.

[0046] Furthermore, in other preferred embodiments of the present invention, the mask 20 and the buckle column 30 are both made of black plastic.

[0047] Here, the mask 20 and the snap-on posts 30 are made of black plastic, so that the display surface of the mask 20 facing away from the PCB board 10 has a relatively pure background color, and forms a large contrast with the color of the LED lamp beads 120, thereby effectively improving the display effect.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them. Although the embodiments of the present invention have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mask connection structure, characterized in that: It comprises a PCB board, a mask of the same color and a snap-on column; the PCB board is provided with a fixing hole for the snap-on column to pass through, and LED lamp beads are arranged thereon; the mask is arranged above the PCB board facing the LED lamp beads and is snap-connected with the end of the snap-on column; the snap-on column and the PCB board are connected by gluing.

2. The mask connection structure according to claim 1, characterized in that: The buckle column includes a fixing portion connected to the PCB board and a connecting portion located on the side of the PCB board facing the mask, and a concave ring is provided on the connecting portion; The mask is provided with a connecting hole for the buckle column to pass through, and the hole diameter of the connecting hole is larger than the diameter of the concave ring.

3. The connection structure of the mask according to claim 2, characterized in that: The snap-on column also includes a bottom plate connected to the end of the fixing portion away from the connecting portion and located on a side of the PCB board away from the LED lamp bead, and the bottom plate is connected to the PCB board by gluing.

4. The connection structure of the mask according to claim 3, characterized in that: It also includes a metal gasket, which is sleeved on the column above the base plate, and the metal gasket is connected to the PCB board by welding or gluing, and the metal gasket is connected to the base plate by gluing.

5. The connection structure of the mask according to claim 2, characterized in that: A guiding surface is provided at the end of the connecting portion away from the fixing portion.

6. The connection structure of the mask according to claim 2, characterized in that: At least one elastic sheet extending toward the center of the connecting hole is provided on the inner wall of the connecting hole.

7. The connection structure of the mask according to claim 6, characterized in that: A locking inclined surface is provided on one side of the elastic sheet away from the PCB board.

8. The connection structure of the mask according to claim 6, characterized in that: There are multiple elastic sheets, and the multiple elastic sheets are evenly distributed around the central axis of the connecting hole.

9. The mask connection structure according to claim 1, characterized in that: The mask is provided with a light-transmitting hole, and the LED lamp bead is arranged in the light-transmitting hole.

10. The connection structure of the mask according to claim 1, characterized in that: The mask and the buckle column are both made of black plastic.

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