Anti-vibration assembly structure of LED backlight source

Abstract

The utility model discloses a kind of shockproof assembly structure of LED backlight, belong to LED display technical field, in existing LED backlight, light bar is fixed by rigid connection, vibration is easy to cause soldering point to fall off, lamp bead damage, influence service life, the structure includes strip shell, strip cover, fixed base, connecting seat and LED light bar;Strip shell contains topless shell, strip cover contains cover, fixed base is installed in shell inner wall, top is equipped with limiting convex end and buckle groove II, connecting seat bottom is equipped with connecting strip and buckle II, buckle II is matched with buckle groove II and leaves gap, connecting strip is elastic material, LED light bar is embedded in the embedding groove of connecting seat, embedding groove is equipped with insulating sheet, cover both sides are equipped with elastic buckle I and shell buckle groove I cooperation, bottom is equipped with limiting strip and connecting seat limiting groove cooperation, when vibrating, gap and elastic component buffer shock force, insulating sheet prevents electric leakage, limiting strip prevents displacement.

Description

Technical Field

[0001] This utility model relates to the field of LED display technology, and in particular to a vibration-proof assembly structure for an LED backlight. Background Technology

[0002] LED backlights are widely used in indoor and outdoor decoration, automotive displays and other fields due to their advantages such as high brightness, low energy consumption and long life. However, in the existing structure, LED strips are mostly fixed by rigid connection methods such as threads on the outer shell. When the equipment is in a vibrating environment (such as vehicle driving or outdoor wind shaking), the vibration force will be directly transmitted to the LED strip, which can easily cause the solder joints of the LED strip to fall off. In severe cases, it can also damage the LED beads, thereby affecting the normal operation of the backlight and shortening the life of the backlight. Currently, there is a lack of an LED backlight assembly structure that is structurally simple to install, can effectively mitigate vibration and shock, and ensures safe and stable use. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as rigid connection fixation, which can easily lead to solder joint detachment and LED chip damage due to vibration, thus affecting the service life. Therefore, this invention proposes a vibration-proof assembly structure for LED backlights.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A vibration-damping assembly structure for an LED backlight includes a strip-shaped shell, wherein the strip-shaped shell comprises a shell without a top structure; A strip-shaped cover, the strip-shaped cover comprising a cover body that snaps onto the top of the housing; The fixed base includes a base, which is fixedly installed on the bottom inner wall of the housing. Both sides of the top of the base are integrally formed with limiting protrusions, and the inner side of the limiting protrusions is provided with a buckle groove II. A connecting seat, the connecting seat includes a top seat, both sides of the bottom of the top seat are integrally formed with connecting strips, and the outer side of the connecting strip is integrally formed with a buckle II, the buckle II cooperates with the buckle groove II on the same side and there is a gap in the lateral part; The LED light strip has an embedding groove on the top of the top seat, and the LED light strip is embedded in the embedding groove; When vibration occurs, the buckle II can move slightly within the gap of the buckle slot II, and the connecting strip undergoes elastic deformation with the vibration, thus preventing the vibration force from being directly transmitted to the LED light strip.

[0005] In one possible design, an insulating sheet is fixedly provided on the inner wall of the mounting groove; The insulating sheet isolates the current conduction between the LED light strip and the connector, preventing the LED light strip from directly contacting the conductive parts and causing the risk of leakage.

[0006] In one possible design, the strip cover also includes limiting strips integrally formed on both sides of the bottom of the cover body, and limiting grooves are provided on both sides of the top of the top seat, the limiting grooves cooperating with the limiting strips on the same side.

[0007] In one possible design, the strip cover also includes snap fasteners I integrally formed on both sides of the cover body, and the strip shell also includes snap grooves I formed on the outer walls of both sides of the shell, wherein the snap fasteners I cooperate with the snap grooves I on the same side; When vibration is transmitted to the strip cover, the buckle I undergoes elastic deformation with the vibration, which buffers part of the vibration force and reduces the transmission of vibration force to the connector and LED light strip.

[0008] In one possible design, the connecting strip is made of elastic polypropylene.

[0009] In one possible design, the insulating sheet is made of polyimide film and is fixed to the inner wall of the mounting groove by double-sided adhesive. The LED light strip is fixed to the mounting groove by high-temperature resistant double-sided adhesive.

[0010] In this application, during actual use, the LED light strip is pasted into the mounting groove. Then, the connector is slidably inserted into the fixing seat from the side along the groove II using the buckle II on the side wall. Alternatively, the buckle II on one side can be obliquely fastened into the corresponding groove II first, and then the connector on the other side can be squeezed to deform it and fasten the buckle II into the other groove II, thereby installing the connector into the fixing seat and completing the installation of the LED light strip. After that, the strip cover can be fastened onto the top of the strip shell by the cooperation of the buckle I and the groove I, thereby completing the assembly of the light source component. The limiting strip will be located in the limiting groove on the same side to limit the connector. The strip-shaped shell is installed using bolts or other methods. When vibration occurs, the vibration force acts directly on the LED light strip through the strip-shaped shell, and the vibration force will be transmitted to the mounting base and the strip cover. Due to the buffer gap between the connecting base and the mounting base, and the elastic connecting strip, the vibration is buffered, preventing the vibration force from acting directly on the LED light strip through the mounting base and the connecting base. Instead, the vibration force is transmitted to the strip cover. The buckle I and the snap I between the strip-shaped shell and the strip cover act as a buffer section to reduce the vibration force and prevent it from being directly transmitted to the LED light strip.

[0011] In this utility model, the vibration-proof assembly structure of the LED backlight can isolate the current conduction between the LED light strip and the connector by using a polyimide film insulating sheet provided on the inner wall of the mounting groove, thereby preventing the LED light strip from directly contacting metal or conductive parts and ensuring safety. In this utility model, the vibration-proof assembly structure of the LED backlight can limit the connection seat for installing the light strip through the limiting strip at the bottom of the cover, so as to ensure its stability and avoid displacement caused by the gap acting as a buffer. In this invention, during use, the lateral gap between the buckle II and the buckle groove II can reduce some of the direct impact of vibration, and the deformation of the elastic connecting strip can absorb some of the vibration energy. The deformation of the elastic buckle I reduces the vibration force transmitted by the strip cover. Compared with the existing rigid connection, it can reduce the transmission efficiency of vibration force to the LED light strip, reduce the phenomenon of LED light strip solder joint detachment and lamp bead damage caused by vibration, and extend the service life of the backlight. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of an anti-vibration assembly structure for an LED backlight proposed in this utility model. Figure 2 This is an exploded structural diagram of an anti-vibration assembly structure for an LED backlight proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of an anti-vibration assembly structure for an LED backlight proposed in this utility model. Figure 4 This is a top view schematic diagram of the vibration-proof assembly structure of an LED backlight proposed in this utility model. Figure 5 This is a front view schematic diagram of the vibration-proof assembly structure of an LED backlight proposed in this utility model. Figure 6 This is a side view of the vibration-proof assembly structure of an LED backlight proposed in this utility model.

[0013] In the diagram: 1. Strip shell; 111. Shell; 112. Snap groove I; 2. Strip cover; 211. Cover body; 212. Snap I; 213. Limiting strip; 3. Fixing base; 311. Base; 312. Snap groove II; 313. Limiting protrusion; 4. Connecting base; 411. Top base; 412. Embedding groove; 413. Connecting strip; 414. Snap II; 415. Limiting groove; 5. Insulating sheet; 6. LED light strip. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In one embodiment: Reference Figure 1-6A vibration-damping assembly structure includes: a strip shell 1, a strip cover 2, a fixing base 3, a connecting base 4, an insulating sheet 5, and an LED light strip.

[0016] The strip shell 1 includes a shell 111, which is a topless structure and can be made of ABS engineering plastic. The length of the shell 111 can be adjusted according to the actual length of the LED light strip. The outer walls on both sides of the shell 111 are respectively provided with a buckle groove I112, with the opening facing the outside of the shell 111, for cooperating with the buckle I212 of the strip cover 2. The strip cover 2 includes a cover body 211, a buckle I, and a limiting strip 213. The cover body 211 is used to fasten to the top of the housing 111 to protect the internal fixing seat 3, connecting seat 4, and LED light strip. The cover body 211 has an integrally formed buckle I 212 on both sides, which can be made of elastic polyethylene or other materials. The shape of the buckle I 212 is adapted to the buckle groove I 112 and can be inserted into the buckle groove I to fix the strip cover 2 to the strip housing 1. The bottom sides of the cover body 211 also have integrally formed limiting strips 213. The limiting strips 213 extend along the length of the cover body 211 and are used to cooperate with the limiting groove 415 of the connecting seat 4. The fixing base 3 includes a base 311 and a limiting protrusion 313. The base 311 is installed on the bottom inner wall of the housing 111 and is fixed by epoxy resin adhesive. The two sides of the top of the base 311 are respectively provided with integrally formed limiting protrusions 313. The limiting protrusions 313 extend along the length direction of the base 311, and a space for accommodating the connecting seat 4 is formed between the two limiting protrusions 313. A buckle groove II 312 is opened on the inner side of each limiting protrusion 313 for engaging with the buckle II of the connecting seat 4. The connecting seat 4 includes a top seat 411, a connecting strip 413, and a buckle II. The top of the top seat 411 has an insert groove 412, the size of which is adapted to the LED light strip. The bottom of the top seat 411 has an integrally formed connecting strip 413 on both sides. Each connecting strip 413 has an integrally formed buckle II 414 on its outer side. The shape of the buckle II 414 is adapted to the buckle groove II 312. When the buckle II 414 and the buckle groove II 312 on the same side are engaged, there is a gap between the two lateral parts to provide a buffer space during vibration. The top of the top seat 411 also has a limiting groove 415 on both sides for engaging with the limiting strip 213. The LED light strip is located inside the mounting groove 412 and is fixed by high-temperature resistant double-sided adhesive to ensure that the LED light strip will not shift within the mounting groove 412 when vibrated. Apply high-temperature resistant double-sided tape to the back of the LED light strip, peel off the release paper, align the LED light strip with the mounting groove 412, place it into the mounting groove 412 and press it to make the LED light strip fit into the mounting groove 412, thus completing the assembly of the LED light strip and the connector 4. Next, align the two buckles II 414 at the bottom of the connecting seat 4 with the buckle grooves II 312 of the limiting protrusions 313 on both sides of the fixing seat 3. Keep the connecting seat 4 horizontal and push the connecting seat 4 laterally between the two limiting protrusions 313 along the length of the limiting protrusions 313 until the buckles II slide completely into the buckle grooves II. Alternatively, fasten the buckles II 414 on one side of the connecting seat 4 diagonally into the buckle grooves II 312 on the corresponding side. Press the connecting strip 413 on the other side of the connecting seat 4 with your finger to make the connecting strip 413 bend inward until the buckles II 414 on that side align with the buckle grooves II 312 on the other side. The connecting strip 413 returns to its original shape, causing the buckles II 414 to snap into the buckle grooves II 312, thus completing the assembly of the connecting seat 4 and the fixing seat 3. Then, align the cover 211 of the strip cover 2 with the top opening of the strip shell 1, so that the buckles I 212 on both sides of the cover 211 are aligned with the buckle grooves I 112 on both sides of the shell 111, and at the same time, align the limiting strip 213 at the bottom of the cover 211 with the limiting groove 415 at the top of the connecting seat 4. Slowly press down on the strip cover 2. The buckles I 212 will undergo elastic deformation under pressure. Continue pressing until the buckles I 212 are inserted into the buckle grooves I 112. At this time, the limiting strip 213 will also be inserted into the limiting groove 415. The connecting seat 4 is limited by the cooperation of the limiting strip 213 and the limiting groove 415, and finally the assembly of the entire light source assembly is completed.

[0017] The strip shell 1 is fixed to the installation surface of the application environment by bolts. When the external environment vibrates, the vibration force is first transmitted to the strip shell 1 and then dispersed. The vibration force is transmitted to the fixing seat 3 on the bottom inner wall through the strip shell 1. The fixing seat 3 transmits the vibration force to the limiting protrusions 313 on both sides. Since there is a gap between the buckle II 414 and the buckle groove II 312 in the lateral part, the buckle II 414 can move slightly within the gap of the buckle groove II 312 during vibration, avoiding direct rigid transmission of vibration force. In addition, the connecting strip 413 is made of elastic polypropylene material, which will undergo adaptive bending deformation with vibration. Through deformation, it absorbs part of the vibration force and then transmits the remaining vibration force to the LED light strip at the top of the connecting seat 4, reducing the impact of vibration force on the LED light strip and preventing the light strip from loosening, the solder joint from falling off, or the LED beads from being damaged. Some of the vibration force is transmitted through the strip shell 1 to the buckle grooves I112 on both sides. The buckle I212 that cooperates with the buckle grooves I112 is made of elastic polyethylene material. It undergoes slight elastic deformation with vibration. The deformation buffers part of the vibration force and avoids direct transmission to the light strip. The buckle section also acts as a buffer section to achieve vibration protection for the LED light strip.

[0018] This application can be used in the field of LED displays, or in other fields applicable to this application.

[0019] In another embodiment: Reference Figure 2An anti-vibration assembly structure for an LED backlight is applied to the LED display field. The structure of this embodiment is basically the same as that of the previous embodiment, except that: an insulating sheet 5 is provided on the inner wall of the mounting groove 412. The insulating sheet 5 can be made of polyimide film material and is fixed on the inner wall of the mounting groove 412 to isolate the current conduction between the LED light strip and the connector 4 and avoid the risk of leakage. The insulating sheet 5 is fixed to the inner wall of the mounting groove 412 of the connector 4 by double-sided adhesive to ensure that the insulating sheet 5 covers the inner wall of the mounting groove 412 and there is no exposed area.

[0020] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vibration-damping assembly structure for an LED backlight, characterized in that, include: Strip shell (1), the strip shell (1) includes a shell (111) without a top structure; A strip cover (2), the strip cover (2) including a cover body (211) that snaps onto the top of the housing (111); The fixed seat (3) includes a base (311), which is fixedly installed on the bottom inner wall of the housing (111). Both sides of the top of the base (311) are integrally formed with a limiting protrusion (313), and a buckle groove II (312) is provided on the inner side of the limiting protrusion (313). Connecting seat (4), the connecting seat (4) includes a top seat (411), both sides of the bottom of the top seat (411) are integrally formed with connecting strips (413), the outer side of the connecting strips (413) is integrally formed with buckle II (414), the buckle II (414) cooperates with the buckle groove II (312) on the same side and there is a gap in the lateral part. LED light strip (6), the top of the top seat (411) is provided with an embedding groove (412), and the LED light strip (6) is embedded in the embedding groove (412); When vibration occurs, the buckle II (414) can move slightly within the gap of the buckle groove II (312), and the connecting strip (413) undergoes elastic deformation with vibration, thus preventing the vibration force from being directly transmitted to the LED light strip (6).

2. The anti-vibration assembly structure for an LED backlight according to claim 1, characterized in that, An insulating sheet (5) is fixedly provided on the inner wall of the mounting groove (412); The insulating sheet (5) isolates the current conduction between the LED light strip (6) and the connector (4), thus avoiding the risk of leakage caused by direct contact between the LED light strip (6) and the conductive parts.

3. The anti-vibration assembly structure for an LED backlight according to claim 2, characterized in that, The strip cover (2) also includes a limiting strip (213) integrally formed on both sides of the bottom of the cover body (211). The top seat (411) has a limiting groove (415) on both sides of the top. The limiting groove (415) cooperates with the limiting strip (213) on the same side.

4. The anti-vibration assembly structure for an LED backlight according to claim 3, characterized in that, The strip cover (2) also includes buckles I (212) integrally formed on both sides of the cover body (211), and the strip shell (1) also includes buckle grooves I (112) opened on both sides of the outer wall of the shell (111), and the buckles I (212) cooperate with the buckle grooves I (112) on the same side; When the vibration is transmitted to the strip cover (2), the buckle I (212) undergoes elastic deformation with the vibration, and the vibration force is buffered by the deformation, thereby reducing the transmission of the vibration force to the connector (4) and the LED light strip (6).

5. A vibration-damping assembly structure for an LED backlight according to any one of claims 2 to 4, characterized in that, The connecting strip (413) is made of elastic polypropylene.

6. The anti-vibration assembly structure for an LED backlight according to claim 5, characterized in that, The insulating sheet (5) is made of polyimide film. The insulating sheet (5) is fixed to the inner wall of the mounting groove (412) by double-sided adhesive. The LED light strip (6) is fixed to the mounting groove (412) by high-temperature resistant double-sided adhesive.

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