Sealing structure of backlight source

Abstract

The utility model discloses a sealing structure of a backlight source, and particularly relates to the technical field of sealing structures, the sealing structure of the backlight source comprises a lower shell, an upper shell and the backlight source arranged in the lower shell, a display panel is fixedly installed in the middle of the top face of the upper shell, and a sealing plate is fixedly installed on the bottom face of the upper shell. A sealing groove is formed in the top face of the lower shell and used for sealing a backlight source, and driving cavities are formed in the two sides of the interior of the upper shell. According to the sealing structure of the backlight source, in actual work, the bottom face of the upper shell body is inserted into the top face of the lower shell body, the sealing plate can be inserted into the sealing groove so as to preliminarily seal the backlight source, the connecting block can be inserted into the connecting groove under pushing of the first spring so as to complete assembling of the lower shell body and the upper shell body, and therefore the sealing structure of the backlight source is simple in structure and convenient to use. And then, the sealing ring is arranged at the joint of the lower shell and the upper shell in a sleeving manner for secondary sealing, so that the dismounting and mounting processes can be effectively more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and particularly relates to a sealing structure for a backlight source. Background Technique

[0002] A backlight source is a light source located behind a liquid crystal display, and the uniformity of its light emission directly affects the visual effect of the liquid crystal display module. During the assembly process of the backlight source and the display panel, a sealing structure is generally used to seal it to prevent external dust from entering the space between the display panel and the backlight source, resulting in defects such as black shadows and spots on the display panel.

[0003] The currently adopted structure usually fixes the sealing structure between the display panel and the backlight source through multiple bolts to form a closed space for isolation. As a result, during the disassembly and installation process, multiple bolts need to be disassembled and assembled in sequence, which is a rather troublesome process. Moreover, after multiple disassembly and assembly operations, the screws are prone to being stripped, which easily affects its sealing effect. Therefore, in order to solve the above defects, the inventor of the present invention proposes a sealing structure for a backlight source. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a sealing structure for a backlight source, which can effectively solve the problem that the disassembly and installation process in the prior art is rather troublesome.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A sealing structure for a backlight source includes a lower housing, an upper housing, and a backlight source disposed inside the lower housing. A display panel is fixedly installed in the middle of the top surface of the upper housing. A sealing plate is fixedly installed on the bottom surface of the upper housing. A sealing groove is opened on the top surface of the lower housing for sealing the backlight source. Driving cavities are opened on both sides inside the upper housing. A telescopic groove is opened on one side of the driving cavity, and the telescopic groove is communicated with the driving cavity. A first spring is fixedly installed on one side inside the telescopic groove, and one end of the first spring is fixedly installed with a connecting block. A towing rope is movably connected inside the driving cavity, and one end of the towing rope is fixedly connected with the connecting block. Two rotating rollers are rotatably connected inside the driving cavity, and both rotating rollers are in contact with the outer surface of the towing rope. Connecting grooves are opened on both sides inside the lower housing.

[0007] Preferably, four mounting plates are fixedly installed on the outer surface of the lower housing, and mounting holes are opened on the top surfaces of the four mounting plates. A sealing ring is sleeved on the outer surface of the lower housing, and four movable rods are fixedly installed on the bottom surface of the sealing ring. Limiting plates are rotatably connected to the bottom surfaces of the four movable rods.

[0008] Preferably, an installation ring is provided inside the sealing ring. A sealing rubber ring is fixedly installed inside the installation ring. Four connection holes are provided on the side of the installation ring. Second springs are fixedly installed inside the four connection holes, and one end of each of the four second springs is fixedly installed with a connection head. Four fixing holes are provided on the side of the sealing ring.

[0009] Preferably, drying grooves are provided on both sides of the inner bottom surface of the lower housing. Desiccants are placed in the drying grooves. Adhesive strips are fixedly installed inside the two drying grooves. Protective plates are pasted inside the two drying grooves through the adhesive strips, and a plurality of ventilation holes are provided on the top surfaces of the two protective plates.

[0010] Preferably, the size of the limiting plate is the same as that of the installation hole, and the cross-sectional shapes of both the limiting plate and the installation hole are rectangular.

[0011] Preferably, pull plates are fixedly installed at one ends of the two towing ropes away from the connection blocks.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a sealing structure for a backlight. By providing a lower housing and an upper housing, during actual work, the bottom surface of the upper housing is inserted into the top surface of the lower housing, so that the sealing plate can be inserted into the sealing groove to perform primary sealing on the backlight. The connection block will be inserted into the connection groove under the push of the first spring to complete the assembly of the lower housing and the upper housing. Then, the sealing ring is sleeved on the connection part of the lower housing and the upper housing for secondary sealing, thereby effectively making the disassembly and installation process more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is a schematic diagram of the disassembled overall structure of the utility model;

[0016] Figure 3 is a schematic diagram of the cross-sectional structure of the upper housing of the utility model;

[0017] Figure 4 is a schematic diagram of the upward view structure of the lower housing of the utility model;

[0018] Figure 5 is a schematic diagram of the structure of the sealing ring of the utility model;

[0019] Figure 6 is a schematic diagram of the downward view structure of the lower housing of the utility model.

[0020] In the figure: 1. Lower housing; 2. Upper housing; 3. Sealing ring; 4. Display panel; 5. Backlight; 7. Sealing plate; 8. Sealing groove; 9. Connecting groove; 201. Driving cavity; 202. Telescopic groove; 203. First spring; 204. Connecting block; 205. Rotating roller; 206. Towing rope; 301. Movable rod; 302. Limiting plate; 101. Mounting plate; 102. Mounting hole; 303. Mounting ring; 304. Sealing rubber ring; 305. Connecting hole; 306. Second spring; 307. Connecting head; 308. Fixing hole; 103. Drying groove; 104. Adhesive strip; 105. Protection plate. Detailed implementation mode

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation mode.

[0022] The present utility model discloses a sealing structure for a backlight, as Figure 1-6 shown, which includes a lower housing 1, an upper housing 2 and a backlight 5 arranged inside the lower housing 1. A display panel 4 is fixedly installed in the middle of the top surface of the upper housing 2.

[0023] A sealing plate 7 is fixedly installed on the bottom surface of the upper housing 2, and a sealing groove 8 is formed on the top surface of the lower housing 1, and the positions of the sealing plate 7 and the sealing groove 8 correspond to each other. When the sealing plate 7 is inserted into the sealing groove 8, the backlight 5 can be preliminarily sealed.

[0024] Driving cavities 201 are formed on both sides inside the upper housing 2. A telescopic groove 202 is formed on one side of the driving cavity 201, and the telescopic groove 202 communicates with the driving cavity 201. A first spring 203 is fixedly installed on one side inside the telescopic groove 202, and one end of the first spring 203 is fixedly installed with a connecting block 204. When the connecting block 204 retracts into the telescopic groove 202, the first spring 203 will be compressed.

[0025] A towing rope 206 is movably connected inside the driving cavity 201, and one end of the towing rope 206 is fixedly connected with the connecting block 204. Pulling plates are fixedly installed at the ends of the two towing ropes 206 away from the connecting block 204. The pulling plates can effectively improve the comfort when pulling the towing rope 206. Stopping blocks are fixedly installed on both sides inside the driving cavity 201 to limit the baffle plate.

[0026] Two rotating rollers 205 are rotatably connected inside the driving cavity 201. The rotating rollers 205 can rotate, and both rotating rollers 205 are in contact with the outer surface of the towing rope 206. When the towing rope 206 is pulled, the towing rope 206 will drive the connecting block 204 to move, so that it retracts into the telescopic groove 202 and compresses the first spring 203. Connecting grooves 9 are formed on both sides inside the lower housing 1.

[0027] When the bottom surface of the upper housing 2 is inserted into the top surface of the lower housing 1, the connecting block 204 will retract into the telescopic groove 202 and compress the first spring 203. Until after the insertion is completed, the compressed first spring 203 will push the connecting block 204 to move, so that it is inserted into the connecting groove 9 to complete the assembly of the upper housing 2 and the lower housing 1.

[0028] When disassembly is required, pull the towing rope 206. The towing rope 206 will drive the connecting block 204 to move, so that it retracts into the telescopic groove 202 and compresses the first spring 203. Furthermore, the connecting block 204 can be pulled out of the connecting groove 9, and the upper housing 2 and the lower housing 1 can be separated.

[0029] Four mounting plates 101 are fixedly installed on the outer surface of the lower housing 1, and mounting holes 102 are provided on the top surfaces of the four mounting plates 101. A sealing ring 3 is sleeved on the outer surface of the lower housing 1. The sealing ring 3 can seal the connection between the lower housing 1 and the upper housing 2.

[0030] Moreover, four movable rods 301 are fixedly installed on the bottom surface of the sealing ring 3. Limiting plates 302 are rotatably connected to the bottom surfaces of the four movable rods 301. When the sealing ring 3 is sleeved on the connection between the lower housing 1 and the upper housing 2, the limiting plates 302 will pass through the mounting holes 102, and then rotate the limiting plates 302 so that they do not coincide with the mounting holes 102, and the installation of the sealing ring 3 can be completed.

[0031] When the sealing ring 3 needs to be disassembled, just rotate the limiting plate 302 so that it coincides with the mounting hole 102, and the sealing ring 3 can be disassembled. The size of the limiting plate 302 is the same as the size of the mounting hole 102, and the cross-sectional shapes of the limiting plate 302 and the mounting hole 102 are both rectangular.

[0032] An installation ring 303 is provided inside the sealing ring 3. A sealing rubber ring 304 is fixedly installed inside the installation ring 303. The sealing rubber ring 304 can seal the connection between the upper housing 2 and the lower housing 1.

[0033] Four connection holes 305 are provided on the side surface of the installation ring 303. Second springs 306 are fixedly installed inside the four connection holes 305. One ends of the four second springs 306 are fixedly installed with connection heads 307. Four fixing holes 308 are provided on the side surface of the sealing ring 3. When the installation ring 303 is inserted into the inside of the sealing ring 3, the second springs 306 will push the connection heads 307 to move, so that they are inserted into the fixing holes 308 to complete the assembly of the installation ring 303 and the sealing ring 3, and further facilitate the replacement of the installation ring 303 and the sealing rubber ring 304.

[0034] On both sides of the inner bottom surface of the lower housing 1, drying grooves 103 are provided, and desiccants can be placed in the drying grooves 103 to absorb moisture in the lower housing 1, so as to avoid the moisture entering during the disassembly process of the lower housing 1 and the upper housing 2 from affecting the backlight 5.

[0035] Adhesive strips 104 are fixedly installed inside both drying grooves 103, and protective plates 105 are pasted inside both drying grooves 103 through the adhesive strips 104, and a plurality of ventilation holes are provided on the top surfaces of the two protective plates 105.

[0036] The working principle of the present utility model is as follows: Insert the bottom surface of the upper housing 2 into the top surface of the lower housing 1. During this process, the sealing plate 7 will be inserted into the sealing groove 8, and the connecting block 204 will retract into the telescopic groove 202 and squeeze the first spring 203. Until after the insertion is completed, the squeezed first spring 203 will push the connecting block 204 to move, so that it is inserted into the connecting groove 9 to complete the assembly of the upper housing 2 and the lower housing 1. Then, the sealing ring 3 is sleeved on the connection between the upper housing 2 and the lower housing 1, and the sealing rubber ring 304 can perform secondary sealing. During this process, the limiting plate 302 will be inserted into the mounting hole 102, and then the limiting plate 302 is rotated so that it does not coincide with the mounting hole 102, and the installation of the sealing ring 3 can be completed. When disassembly is required, just rotate the limiting plate 302 to make it coincide with the mounting hole 102, and the sealing ring 3 can be disassembled. Then, pull the traction rope 206, and the traction rope 206 will drive the connecting block 204 to move, so that it retracts into the telescopic groove 202 and squeezes the first spring 203, and then the connecting block 204 can be pulled out of the connecting groove 9 to separate the upper housing 2 and the lower housing 1.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure of a backlight source, comprising a lower housing (1), an upper housing (2) and a backlight source (5) arranged inside the lower housing (1), wherein a display panel (4) is fixedly mounted on the middle of the top surface of the upper housing (2), characterized in that: A sealing plate (7) is fixedly mounted on the bottom surface of the upper shell (2), a sealing groove (8) is provided on the top surface of the lower shell (1) for sealing the backlight source (5), a driving cavity (201) is provided on both sides of the interior of the upper shell (2), a telescopic groove (202) is provided on one side of the driving cavity (201), and the telescopic groove (202) is communicated with the driving cavity (201), a first spring (203) is fixedly mounted on one side of the interior of the telescopic groove (202), and a connecting block (204) is fixedly mounted on one end of the first spring (203), a traction rope (206) is movably connected to the interior of the driving cavity (201), and one end of the traction rope (206) is fixedly connected to the connecting block (204), two rotating rollers (205) are rotatably connected to the interior of the driving cavity (201), and the two rotating rollers (205) are in contact with the outer surface of the traction rope (206), and a connecting groove (9) is provided on both sides of the interior of the lower shell (1).

2. The sealing structure of a backlight source according to claim 1, characterized in that: Four mounting plates (101) are fixedly mounted on the outer surface of the lower shell (1), and the top surfaces of the four mounting plates (101) are each provided with a mounting hole (102); a sealing ring (3) is sleeved on the outer surface of the lower shell (1), and four movable rods (301) are fixedly mounted on the bottom surface of the sealing ring (3); and the bottom surfaces of the four movable rods (301) are rotatably connected to a limiting plate (302).

3. The sealing structure of a backlight source according to claim 2, characterized in that: The sealing ring (3) is provided with a mounting ring (303) inside, a sealing rubber ring (304) is fixedly installed inside the mounting ring (303), four connecting holes (305) are provided on the side of the mounting ring (303), second springs (306) are fixedly installed inside the four connecting holes (305), and a connector (307) is fixedly installed at one end of the four second springs (306), and four fixing holes (308) are provided on the side of the sealing ring (3).

4. The sealing structure of a backlight source according to claim 1, characterized in that: Drying grooves (103) are provided on both sides of the inner bottom surface of the lower shell (1), and desiccants are placed in the drying grooves (103). Adhesive strips (104) are fixedly installed inside the two drying grooves (103). Protective plates (105) are adhered to the inside of the two drying grooves (103) through the adhesive strips (104), and the top surfaces of the two protective plates (105) are provided with a plurality of ventilation holes.

5. The sealing structure of a backlight source according to claim 2, characterized in that: The size of the limiting plate (302) is the same as the size of the mounting hole (102), and the cross-sectional shapes of the limiting plate (302) and the mounting hole (102) are both rectangular.

6. The sealing structure of a backlight source according to claim 1, characterized in that: A pulling plate is fixedly mounted on one end of the two traction ropes (206) away from the connection block (204).

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