LED backlight source with dustproof structure

Abstract

The utility model discloses a backlight source with a dustproof structure. The backlight source comprises a backlight source plate and an outer frame arranged on the outer side of the backlight source plate. A dustproof mechanism is arranged at the upper end of the outer frame and comprises a storage box arranged at the top of the outer frame, a rotating shaft is rotationally connected to the inner side of the storage box, dustproof cloth matched with the backlight source plate is wound around the rotating shaft, and one end of the rotating shaft extends to the outer side of the storage box and is provided with a driving structure; a balance weight bottom rod is arranged at the free end of the dustproof cloth. According to the backlight source with the dustproof structure, dust prevention and dust removal of the backlight source plate can be achieved through mutual cooperation of the storage box, the rotating shaft, the dustproof cloth, the balance weight bottom rod and the flexible cleaning strip, accumulated dust can be cleaned through the flexible cleaning strip when the backlight source plate is covered with the dustproof cloth in the using process, and dust accumulation can be avoided when the backlight source is not used through covering.

Description

Technical Field

[0001] The utility model relates to the field of LED backlight sources, in particular to an LED backlight source with a dustproof structure. Background Art

[0002] The development of backlight sources can be traced back to World War II, which was the initial stage of the development of backlight sources. After half a century of development, backlight technology is now very mature. Among them, LED backlight sources, as one of the backlight sources, have a wide range of uses. In addition to display screens, LED backlight sources can also be used on various luminous surfaces, such as advertising billboards and other display devices.

[0003] Most LED backlight sources in the prior art are generally exposed whether in use or not. Therefore, after long-term use, the surface of the LED backlight source will be contaminated with a lot of dust, which will affect the brightness of the LED backlight source.

[0004] Therefore, it is necessary to propose an LED backlight source with a dustproof structure to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide an LED backlight source with a dustproof structure, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An LED backlight source with a dustproof structure comprises a backlight source panel and an outer frame arranged outside the backlight source panel;

[0008] A dustproof mechanism is provided at the upper end of the outer frame, and the dustproof mechanism includes a storage box arranged on the top of the outer frame, the inner side of the storage box is rotatably connected with a rotating shaft, a dustproof cloth adapted to the backlight panel is wound on the rotating shaft, one end of the rotating shaft extends to the outside of the storage box and is provided with a driving structure, a counterweight bottom rod is provided at the free end of the dustproof cloth, and a flexible cleaning strip is provided on the side of the counterweight bottom rod facing the backlight panel.

[0009] Preferably, a through slot is formed on one side of the storage box close to the backlight source panel, and the free end of the dustproof cloth passes through the through slot.

[0010] Preferably, the driving structure is a motor or a handwheel.

[0011] Preferably, the flexible cleaning strip is adapted to and in contact with the backlight source panel, and the flexible cleaning strip is connected to the counterweight bottom rod by means of Velcro.

[0012] Preferably, a first magnetic sheet is disposed on the edge of the lower end of one side of the outer frame, and a second magnetic sheet having a magnetic property opposite to that of the first magnetic sheet is disposed on the side of both ends of the counterweight bottom rod facing the backlight panel.

[0013] Preferably, the second magnetic sheet corresponds to the first magnetic sheet and is magnetically connected to it.

[0014] Preferably, a dust-sticking mechanism is provided on the top of the storage box, and the dust-sticking mechanism includes a storage box arranged on the top of the storage box and connected to the storage box, the top of the storage box is connected to a top cover by a lock, fixed plates are symmetrically provided at both ends of the bottom of the top cover, the bottom of the fixed plate is movably connected to a movable plate, and dust-sticking rollers are rotatably connected to the inner sides of the lower ends of the two movable plates.

[0015] Preferably, the bottom of the sticky roller is in close contact with the dustproof cloth on the rotating shaft; the fixed plate is a hollow structure, an elastic part is provided at the inner upper end of the fixed plate, and the upper end of the movable plate is movably connected to the inner lower end of the fixed plate, so that as the dustproof cloth is rolled up, the sticky roller will drive the movable plate to compress the elastic part.

[0016] Beneficial Effects

[0017] Compared with the prior art, the utility model provides an LED backlight source with a dustproof structure, which has the following beneficial effects:

[0018] 1. The LED backlight source with a dustproof structure can achieve dust prevention and dust removal for the backlight source panel through the cooperation of the storage box, the rotating shaft, the dustproof cloth, the counterweight bottom rod, and the flexible cleaning strip. The dust accumulated during use can be cleaned by the flexible cleaning strip when the backlight source panel is covered with the dustproof cloth. The covering can avoid dust accumulation when not in use. The arrangement of the second magnetic sheet and the first magnetic sheet facilitates the stability of the counterweight bottom rod when covering, thereby avoiding shaking.

[0019] 2. The LED backlight source with a dustproof structure can adhere to the dust on the outside of the dustproof cloth when the dustproof cloth is rolled up through the coordinated arrangement of the accommodating box, the top cover, the dust-sticking roller, the movable plate, the fixed plate, and the elastic member. The dust accumulated when the dustproof cloth is protected can be removed, and the dust-sticking roller can automatically adjust its position upward according to the thickness of the rolled dustproof cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the counterweight bottom rod of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the accommodation box of the utility model;

[0023] Figure 4It is a schematic diagram of the cross-sectional structure of the storage box and the containing box of the utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the top cover and the dust-sticking roller of the utility model.

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the movable plate and the fixed plate of the utility model.

[0026] In the figure: 1. backlight panel; 2. outer frame; 3. storage box; 4. containing box; 5. driving structure; 6. dustproof cloth; 7. counterweight bottom rod; 8. first magnetic sheet; 9. flexible cleaning strip; 10. second magnetic sheet; 11. top cover; 12. lock; 13. dust-sticking roller; 14. through groove; 15. rotating shaft; 16. elastic member; 17. movable plate; 18. fixed plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Example

[0029] like Figure 1-Figure 6 As shown, in the present embodiment, an LED backlight source with a dustproof structure comprises a backlight panel 1 and an outer frame 2 arranged on the outside of the backlight panel 1; a dustproof mechanism is arranged on the upper end of the outer frame 2, and the dustproof mechanism comprises a storage box 3 arranged on the top of the outer frame 2, and the inner side of the storage box 3 is rotatably connected with a rotating shaft 15, and a dustproof cloth 6 adapted to the backlight panel 1 is wound on the rotating shaft 15, and a through groove 14 is opened on the side of the storage box 3 close to the backlight panel 1, and the free end of the dustproof cloth 6 passes through the through groove 14, and one end of the rotating shaft 15 extends to the outside of the storage box 3 and is provided with a driving structure 5, and the driving structure 5 is a motor or a hand wheel, so as to be automatically or manually driven, and a counterweight bottom rod 7 is arranged on the free end of the dustproof cloth 6, and a flexible cleaning strip 9 is arranged on the side of the counterweight bottom rod 7 facing the backlight panel 1, and the flexible cleaning strip 9 is preferably a sponge strip, and the flexible cleaning strip 9 is adapted to and in contact with the backlight panel 1, and the flexible cleaning strip 9 is connected to the counterweight bottom rod 7 by Velcro.

[0030] Furthermore, a first magnetic sheet 8 is provided at the edge of the lower end of one side of the outer frame 2, and a second magnetic sheet 10 with opposite magnetic properties to the first magnetic sheet 8 is provided on the side facing the backlight panel 1 at both ends of the counterweight bottom rod 7. The second magnetic sheet 10 corresponds to the first magnetic sheet 8 and is magnetically connected to it.

[0031] Furthermore, a dust-sticking mechanism is provided on the top of the storage box 3, and the dust-sticking mechanism includes a accommodating box 4 arranged on the top of the storage box 3 and connected to the storage box 3, the top of the accommodating box 4 is connected to the top cover 11 through a lock buckle 12, and fixed plates 18 are symmetrically provided at both ends of the bottom of the top cover 11, and the bottom of the fixed plate 18 is movably connected to a movable plate 17, and the inner sides of the lower ends of the two movable plates 17 are rotatably connected to dust-sticking rollers 13, and the bottoms of the dust-sticking rollers 13 are in close contact with the dust-proof cloth 6 on the rotating shaft 15, and the fixed plate 18 is a hollow structure, and an elastic member 16 is provided on the inner upper end of the fixed plate 18, and the elastic member 16 is preferably a spring, and the upper end of the movable plate 17 is movably connected to the inner lower end of the fixed plate 18, so that as the dust-proof cloth 6 is rolled up, the dust-sticking roller 13 will drive the movable plate 17 to compress the elastic member 16.

[0032] Working principle: when in use, the driving structure 5 can be used to drive the rotating shaft 15 to rotate, and the dustproof cloth 6 is rolled up on the outside of the rotating shaft 15. As the dustproof cloth 6 is rolled up, the dust-sticking roller 13 sticks dust to the surface of the rolled dustproof cloth 6. As the thickness of the dustproof cloth 6 increases, the dust-sticking roller 13 compresses the elastic part 16 on the inner side of the fixed plate 18 through the movable plate 17, thereby changing its position. When not in use, the rotating shaft 15 is unwound, and the dustproof cloth 6 covers one side of the backlight panel 1 until the second magnetic sheet 10 is stably connected to the first magnetic sheet 8 by magnetic connection. The device has a simple structure and can prevent dust when not in use, and can clear the lake grass accumulated during use. The flexible cleaning strip 9 and the counterweight bottom rod 7 are detachable for easy replacement and cleaning. The top cover 11 and the containing box 4 are detachable for easy replacement and cleaning of the dust-sticking roller 13.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An LED backlight source with a dustproof structure, comprising a backlight source panel (1) and an outer frame (2) arranged outside the backlight source panel (1); Features: A dustproof mechanism is provided at the upper end of the outer frame (2), and the dustproof mechanism comprises a storage box (3) arranged on the top of the outer frame (2); the inner side of the storage box (3) is rotatably connected with a rotating shaft (15); a dustproof cloth (6) adapted to the backlight source panel (1) is wound on the rotating shaft (15); one end of the rotating shaft (15) extends to the outer side of the storage box (3) and is provided with a driving structure (5); a counterweight bottom rod (7) is provided at the free end of the dustproof cloth (6); and a flexible cleaning strip (9) is provided on the side of the counterweight bottom rod (7) facing the backlight source panel (1).

2. The LED backlight source with a dustproof structure according to claim 1, characterized in that: A through slot (14) is provided on one side of the storage box (3) close to the backlight source panel (1), and the free end of the dustproof cloth (6) passes through the through slot (14).

3. The LED backlight source with a dustproof structure according to claim 2, characterized in that: The driving structure (5) is a motor or a hand wheel.

4. The LED backlight source with a dustproof structure according to claim 3, characterized in that: The flexible cleaning strip (9) is adapted to and in contact with the backlight source panel (1), and the flexible cleaning strip (9) is connected to the counterweight bottom rod (7) via a Velcro fastener.

5. The LED backlight source with a dustproof structure according to claim 1, characterized in that: A first magnetic sheet (8) is arranged at the edge of the lower end of one side of the outer frame (2), and a second magnetic sheet (10) having a magnetic property opposite to that of the first magnetic sheet (8) is arranged at both ends of the counterweight bottom rod (7) on the side facing the backlight source panel (1).

6. The LED backlight source with a dustproof structure according to claim 5, characterized in that: The second magnetic sheet (10) corresponds to the first magnetic sheet (8) and is magnetically connected to it.

7. The LED backlight source with a dustproof structure according to claim 6, characterized in that: A dust sticking mechanism is arranged on the top of the storage box (3), and the dust sticking mechanism comprises a storage box (4) arranged on the top of the storage box (3) and connected to the storage box (3); the top of the storage box (4) is connected to a top cover (11) via a lock buckle (12); fixed plates (18) are symmetrically arranged at both ends of the bottom of the top cover (11); the bottom of the fixed plate (18) is movably connected to a movable plate (17); and the lower ends of the two movable plates (17) are rotatably connected to dust sticking rollers (13) on their inner sides.

8. The LED backlight source with a dustproof structure according to claim 7, characterized in that: The bottom of the dust-sticking roller (13) is in close contact with the dust-proof cloth (6) on the rotating shaft (15); the fixed plate (18) is a hollow structure, and an elastic member (16) is provided at the inner upper end of the fixed plate (18); the upper end of the movable plate (17) is movably connected to the inner lower end of the fixed plate (18), so that as the dust-proof cloth (6) is rolled up, the dust-sticking roller (13) will drive the movable plate (17) to compress the elastic member (16).

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