A sealing structure of a backlight source

Abstract

The utility model discloses a sealing structure of backlight, including lower casing and upper casing, the middle part of upper casing is embedded with display panel, the side edge lower extreme fixed mounting of upper casing has the plug -in board, the upper end of lower casing is provided with the sealing groove, the lower extreme fixed mounting of upper casing has the sealing board, the lateral wall of upper casing is provided with slide hole, the inside of slide hole is provided with the fixed component for the butt joint of lower casing and upper casing fixed, the utility model discloses utilize fixed component to realize the butt joint fixed of lower casing and upper casing, and simultaneously sealing board can accurately embed sealing groove, effectively reduced the gap of the assembly error, greatly enhanced the overall sealing performance, can effectively prevent the outside dust, moisture and other impurities and enter the inside of backlight, protect internal precision component from environmental factor influence, prolong the service life of backlight.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, and in particular to a sealing structure for a backlight. Background Technology

[0002] In various electronic display devices, the backlight is a key component that provides uniform background light. The stability and reliability of its performance have a crucial impact on the display effect and lifespan of the entire display device.

[0003] In existing backlight sealing structure designs, multiple bolts are typically used to fix the sealing structure in order to ensure an effective sealed isolation space between the display panel and the backlight. This traditional fixing method has many drawbacks in practical applications. During installation and removal, workers need to disassemble and reassemble multiple bolts sequentially, which is not only tedious and complex but also consumes a lot of time and effort, greatly reducing production efficiency.

[0004] Furthermore, repeated disassembly and assembly operations cause severe wear to the bolts and corresponding threaded holes. With each disassembly and assembly, the screws are prone to stripping. Once the screws are stripped, not only will they be unable to be screwed in or out properly, affecting the normal disassembly and assembly of the upper and lower housings, but more importantly, it will severely affect the sealing effect of the sealing structure. External dust, moisture, and other impurities may enter the backlight through loose or unsealed areas, damaging internal precision components, thereby shortening the lifespan of the backlight and increasing product maintenance costs and replacement frequency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sealing structure for a backlight. This structure utilizes a fixing component to achieve docking and fixing of the lower and upper housings. Simultaneously, the sealing plate can be accurately embedded in the sealing groove, effectively reducing gaps caused by assembly errors and greatly enhancing the overall sealing performance. This effectively prevents external dust, moisture, and other impurities from entering the backlight, protecting internal precision components from environmental factors and extending the lifespan of the backlight.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A sealing structure for a backlight includes a lower housing and an upper housing. A display panel is embedded in the middle of the upper housing, a plug plate is fixedly installed on the lower side of the upper housing, a sealing groove is formed at the upper end of the lower housing, and a sealing plate is fixedly installed at the lower end of the upper housing. The upper housing has a sliding hole on its side wall, and a fixing component for docking and fixing the lower housing to the upper housing is provided inside the sliding hole.

[0007] Preferably, the opening end of the sealing groove and the lower corner of the sealing plate are both rounded.

[0008] Preferably, the fixing component includes a limiting plate slidably connected within the sliding hole, the limiting plate and the sliding hole being elastically connected by two tension springs, and a slot corresponding to the limiting plate is provided on the inner side of the sealing groove.

[0009] Preferably, the sliding hole has a right-angled Z-shaped structure, and a spring groove for installing a tension spring is provided at the upper corner.

[0010] Preferably, the limiting plate is a right-angled Z-shaped plate, and the lower end face of the inward side is a sloping structure, and a handle is fixedly installed on the outward end of the limiting plate.

[0011] Preferably, a sealing cap is embedded at the open end of the sliding hole, and the sealing cap is made of rubber.

[0012] This utility model has the following beneficial effects: The lower housing has a sealing groove, and the upper housing has a corresponding sealing plate installed, with rounded corners at the contact points of both. This design allows the sealing plate to be inserted into the sealing groove more smoothly and accurately during assembly, effectively reducing gaps caused by assembly errors, greatly enhancing the overall sealing performance, and effectively preventing external dust, moisture, and other impurities from entering the backlight, protecting the internal precision components from environmental factors, and extending the lifespan of the backlight.

[0013] A rubber sealing cap is embedded at the opening of the sliding hole, which can tightly seal the sliding hole when the fixing components are not required. The rubber material has good elasticity and sealing properties, which can completely prevent dust, moisture and other substances from entering the interior through the sliding hole, further improving the reliability of the entire sealing structure and creating a stable and clean working environment for the backlight.

[0014] A unique fixing component is used to achieve the docking and fixation of the lower and upper housings. The limiting plate is a right-angled Z-shaped plate, which is adapted to the sliding hole, which also has a right-angled Z-shaped structure. This structure makes the sliding of the limiting plate within the sliding hole more stable and less prone to displacement or jamming. At the same time, the limiting plate is elastically connected to the sliding hole through two tension springs. During docking, the inclined structure of the limiting plate facilitates smooth entry and engagement with the slot, while the elasticity provided by the tension springs ensures that the limiting plate is tightly locked in the slot, making the connection between the upper and lower housings firm and preventing loosening or separation due to vibration, collision, or other factors. This ensures the stability and reliability of the backlight structure. During assembly, simply align the upper and lower housings. The limiting plate, under the action of the inclined structure and tension spring, will automatically snap into the slot, completing the fixation. No complicated operating steps or additional tools are required, greatly improving production efficiency. When maintenance or component replacement is needed, simply pull the handle on the limiting plate to overcome the tension spring force, causing the limiting plate to disengage from the slot, easily separating the upper and lower housings. This is convenient, quick, and saves time and labor costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the sealing structure of a backlight proposed in this utility model; Figure 2 This is a side view of a sealing structure for a backlight source proposed in this utility model; Figure 3 This is a cross-sectional view of a sealing structure for a backlight source proposed in this utility model.

[0016] In the diagram: 1. Lower housing, 2. Sealing groove, 3. Backlight, 4. Connecting plate, 5. Upper housing, 6. Display panel, 7. Sealing cover, 8. Slot, 9. Sliding hole, 10. Sealing plate, 11. Limiting plate, 12. Tension spring. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Reference Figures 1-3 A backlight sealing structure includes a lower housing 1 and an upper housing 5. A display panel 6 is embedded in the middle of the upper housing 5. A plug plate 4 is fixedly installed on the lower side of the upper housing 5. A sealing groove 2 is opened at the upper end of the lower housing 1. A sealing plate 10 is fixedly installed at the lower end of the upper housing 5. The opening end of the sealing groove 2 and the lower corner of the sealing plate 10 are both rounded. The upper housing 5 has a sliding hole 9 on its side wall. The sliding hole 9 has a fixing component for docking and fixing the lower housing 1 and the upper housing 5. The fixing component includes a limiting plate 11 that is slidably connected in the sliding hole 9. The limiting plate 11 and the sliding hole 9 are elastically connected by two tension springs 12. The inner side of the sealing groove 2 has a slot 8 corresponding to the limiting plate 11. The sliding hole 9 has a right-angled Z-shaped structure, and a spring groove for installing the tension spring 12 is provided at the upper corner. The limiting plate 11 has a right-angled Z-shaped plate, and the lower end face of the inward side has a beveled structure. A handle is fixedly installed on the outward end of the limiting plate 11. A sealing cover 7 is embedded in the opening end of the sliding hole 9. The sealing cover 7 is made of rubber and can seal the opening end of the sliding hole 9 when the fixed component is not operated by the handle to prevent dust and other substances from entering and affecting the structural performance.

[0020] Working principle: When the upper housing 5 mates with the lower housing 1, the rounded corner structure helps the sealing plate 10 to smoothly enter the sealing groove 2, achieving initial sealing.

[0021] During docking, the inclined structure of the lower end face of the limiting plate 11 facing inward will push the limiting plate 11 to slide in the sliding hole 9 and stretch the tension spring 12 when it encounters the relevant structure of the lower shell 1 and the upper shell 5. When the docking is in place, when the slot 8 inside the sealing groove 2 corresponds to the position of the limiting plate 11, the tension spring 12 will reset and push the limiting plate 11 into the slot 8, thereby realizing the docking and fixing of the lower shell 1 and the upper shell 5.

[0022] When disassembly is required, pull the handle to allow the limiting plate 11 to overcome the elastic force of the tension spring 12 and exit from the slot 8, thus separating the lower housing 1 from the upper housing 5.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A sealing structure for a backlight, characterized in that: It includes a lower housing (1) and an upper housing (5). A display panel (6) is embedded in the middle of the upper housing (5). A plug-in plate (4) is fixedly installed on the lower side of the upper housing (5). A sealing groove (2) is opened at the upper end of the lower housing (1). A sealing plate (10) is fixedly installed at the lower end of the upper housing (5). The upper housing (5) has a sliding hole (9) on its side wall, and a fixing component for docking and fixing the lower housing (1) and the upper housing (5) is provided inside the sliding hole (9).

2. The sealing structure for a backlight source according to claim 1, characterized in that, The opening end of the sealing groove (2) and the lower corner of the sealing plate (10) are both rounded.

3. The sealing structure for a backlight source according to claim 1, characterized in that, The fixing component includes a limiting plate (11) that is slidably connected in the sliding hole (9). The limiting plate (11) and the sliding hole (9) are elastically connected by two tension springs (12). The inner side of the sealing groove (2) is provided with a slot (8) corresponding to the limiting plate (11).

4. The sealing structure of a backlight source according to claim 3, characterized in that, The sliding hole (9) has a right-angle Z-shaped structure, and a spring groove for installing the tension spring (12) is provided at the upper corner.

5. The sealing structure of a backlight source according to claim 3, characterized in that, The limiting plate (11) is a right-angled Z-shaped plate, and the lower end face of the inward side is a sloping structure. A handle is fixedly installed on the outward end of the limiting plate (11).

6. The sealing structure of a backlight source according to claim 1, characterized in that, The opening end of the sliding hole (9) is fitted with a sealing cap (7), which is made of rubber.

Images