LED backlight source with rotating dust cover

By designing rotary dust cover and liquid storage components on the LED backlight, using liquid jetting and rainwater flushing technology, the impact of outdoor dust and high temperature on the LED backlight is solved, the light transparency and equipment life are improved, and safety is ensured. .

CN115164121BInactive Publication Date: 2024-12-24GUANGDONG JUNJIE IND CO LTD
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Patent Information

Application Number
CN202210893987.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-27
Publication Date
2024-12-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Outdoor LED backlights are susceptible to dust and high temperatures, resulting in light blocking and damage to electronic components, posing safety hazards.

Method used

An LED backlight source with its own rotary dust cover is designed, and a structure combining dustproof board, liquid storage assembly and drive assembly is designed to remove dust and reduce temperature through liquid jetting and rainwater rinsing. The dustproof plate rotates to block dust, and the liquid storage assembly stores rainwater and rinses the LED backlight through the water accumulation pipe and the jet pipe.

Benefits of technology

It effectively reduces the impact of dust on light, improves the cleanliness and service life of LED backlights, reduces the risk of electronic components damage, and ensures safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of LED backlight sources, and more specifically, to an LED backlight source with a rotating dust cover. The LED backlight source includes an LED backlight source body, a dust plate is provided on one side of the LED backlight source body, a liquid storage component is provided on the surface of the dust plate, a driving component is provided below the liquid storage component, the driving component includes a driving piston and a water accumulation pipe, one end of the water accumulation pipe is connected to a liquid guide component, one end of the liquid guide component is connected to the liquid storage component, and the driving component is used to receive the liquid guided by the liquid guide component and spray the liquid outward. The present invention collects rainwater through the liquid storage component and transports the rainwater to the water accumulation pipe, and the rainwater is squeezed by the driving piston to be sprayed out through the jet pipe. The rainwater sprayed outward will contact the surface of the LED backlight source body, thereby improving the cleanliness of the LED backlight source body and facilitating the subsequent light diffusion of the LED backlight source body.
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Description

Technical Field

[0001] The invention relates to the technical field of LED backlight sources, in particular to an LED backlight source with a rotating dust cover. Background Art

[0002] LED backlight is a backlight that uses LED (light emitting diode). This type of luminous LED backlight is often seen in shopping streets and life plazas. Among them, LED backlight has colors such as red, white or blue, adding a certain colorful color to the world of life.

[0003] Among them, for the LED backlight used outdoors, the LED backlight source is a single light-emitting panel structure, and the LED backlight source is installed outdoors. When there is a strong wind outdoors, the wind blows the dust in the external environment to the surface of the LED backlight source. When too much dust accumulates, the light of the LED backlight source will be blocked, and only a small part can diffuse outward through the dust, affecting the normal use of the LED backlight source;

[0004] Secondly, when the outdoor ambient temperature is high and the direct sunlight in summer is added, the heat generated by the LED backlight source increases synchronously, which will increase the workload of the LED backlight source and affect the long-term luminous efficiency of the LED backlight source;

[0005] When the load reaches a certain level, coupled with direct sunlight in summer, the electronic components inside the LED backlight source will be burned out, causing property loss. When the electronic components burn out and cause smoke or fire, it will create a huge safety hazard in the vicinity. Summary of the invention

[0006] The object of the present invention is to provide an LED backlight source with a rotating dust cover to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention aims to provide an LED backlight source with a rotating dust cover, comprising an LED backlight source body, a dustproof plate for shielding dust and light is arranged on one side of the LED backlight source body, a liquid storage assembly for storing liquid is arranged on the surface of the dustproof plate, a driving assembly is arranged below the liquid storage assembly, the driving assembly comprises a driving piston installed on the bottom surface of the dustproof plate, a water accumulation pipe is slidably arranged on the outer side of the driving piston, the water accumulation pipe is fixedly connected to the LED backlight source body, one end of the water accumulation pipe is connected to a liquid guide assembly, one end of the liquid guide assembly is connected to the liquid storage assembly, the driving assembly is used to receive liquid guided by the liquid guide assembly and spray the liquid outward, when the liquid of the driving assembly is sprayed outward, it will reduce dust in the air, and flush the dust and cool the LED backlight source body.

[0008] As a further improvement of the technical solution, one end of the dustproof plate close to the LED backlight source body is an arc-shaped structure, and turntables are installed on both sides of the dustproof plate.

[0009] As a further improvement of the present technical solution, the liquid storage assembly includes a water storage plate installed on the surface of the dustproof plate. The water storage plate is a rectangular structure with an opening to one side. The water storage plate is connected to the driving assembly through a liquid guide assembly. A filter screen for filtering foreign matter is installed inside the water storage plate.

[0010] As a further improvement of the technical solution, a guide plate is provided on one side of the water storage plate. The guide plate is triangular in shape and is installed on the surface of the dustproof plate, and one corner of the guide plate is located in the middle of the filter.

[0011] As a further improvement of the technical solution, a vertical plate for sealing the water storage plate is clamped on the water storage plate.

[0012] As a further improvement of the present technical solution, the driving piston includes a rod body connected to a water storage plate, a piston is mounted on one end of the rod body, and the piston is slidably arranged in a water accumulation pipe; a jet pipe is connected to the water accumulation pipe, one end of the jet pipe extends inwardly through the dustproof plate, and a plurality of openings are provided on the side wall of the jet pipe near one end of the LED backlight source body.

[0013] As a further improvement of the present technical solution, the liquid guiding assembly includes a bellows connected to the water storage plate, and one end of the bellows is connected to the water accumulation pipe.

[0014] As a further improvement of the technical solution, a one-way valve for limiting the backflow of liquid in the water accumulation pipe is installed on the bellows.

[0015] As a further improvement of the present technical solution, two groups of connecting components are arranged on the side of the LED backlight source body, and the connecting components each include an inner connecting plate, an outer connecting plate is slidably arranged on one end of the inner connecting plate, the outer connecting plate is fixedly connected to the contact surface, and a mounting plate is installed on the other end of the inner connecting plate, and the mounting plate is fixedly connected to the LED backlight source body.

[0016] As a further improvement of the technical solution, connection openings are provided on the surfaces of the inner connection plate and the outer connection plate, and the connection openings are fixed by bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the LED backlight source with a rotating dust cover, the dust plate is rotated to block the light-emitting side of the dust plate. At this time, the dust plate blocks a large amount of dust generated by outdoor wind, reducing the excessive dust attached to the LED backlight source body to affect the diffusion of light, ensuring the light emission of the LED backlight source body, and facilitating the use of the LED backlight source body.

[0019] 2. In the LED backlight source with a rotating dust cover, the dust cover is tilted upward to open, and the dust cover makes the liquid storage component tilt upward. On rainy days, the liquid storage component will receive rainwater from the environment (and when the dust cover is tilted upward, the dust cover will also guide the flow of rainwater dripping on the dust cover to enter the liquid storage component, thereby accelerating the storage efficiency of rainwater in the liquid storage component), and transport the rainwater to the water pipe. Under the connection of the driving piston, the rainwater will be stored between the driving piston and the water pipe. When the board is in an outward expanding state, the driving piston is supported in the water accumulation pipe, providing a certain supporting force for fixing the position of the dustproof plate and reducing the shaking of the dustproof plate. When the LED backlight source body is sealed by the dustproof plate, the driving piston squeezes the rainwater and sprays it out through the jet pipe. The rainwater sprayed outward will contact the surface of the LED backlight source body, and the rainwater slides down from top to bottom to wash the LED backlight source body that has been attached with dust, thereby improving the cleanliness of the LED backlight source body and facilitating the subsequent light diffusion of the LED backlight source body.

[0020] 3. In the LED backlight source with a rotating dust cover, rainwater is sprayed to the outside through a jet pipe, which can also produce a dust reduction treatment for the dust in the environment. This makes the dust particles near the LED backlight source body fall quickly, so as to solve the problem that a large amount of air dust will be compressed onto the LED backlight source body when the dustproof plate gradually seals the LED backlight source body, thereby further performing dust prevention treatment on the LED backlight source body.

[0021] 4. In the LED backlight source with a rotating dust cover, when rainwater contacts the LED backlight source body, it will also take away the heat of the LED backlight source body itself, which greatly reduces the temperature of the LED backlight source body and increases the service life of the LED backlight source body.

[0022] 5. In the LED backlight source with a rotating dust cover, the liquid storage component faces downward when the dustproof plate is tilted and folded downward to seal the LED backlight source body. When the liquid storage component receives rainwater and dust particles from the outside, the liquid storage component tilts to guide out the dirt formed by dust accumulation, thereby ensuring the cleanliness of the rainwater received by the liquid storage component, thereby ensuring the cleanliness of the LED backlight source body flushed by rainwater, which is beneficial to the light diffusion of the LED backlight source body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is one of the overall structural schematic diagrams of the present invention;

[0024] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0025] Figure 3 This is the third schematic diagram of the overall structure of the present invention;

[0026] Figure 4 This is a diagram showing the LED backlight source body and structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the liquid storage component and the driving component of the present invention;

[0028] Figure 6 This is a structural exploded view of the liquid storage component of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of A in the middle of 5 of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the connection assembly of the present invention.

[0031] The meaning of each number in the figure is:

[0032] 1. LED backlight source body;

[0033] 2. Dustproof plate; 21. Turntable;

[0034] 3. Liquid storage assembly; 31. Water storage plate; 32. Filter screen; 33. Guide plate; 34. Vertical plate;

[0035] 4. driving assembly; 41. driving piston; 42. water collection pipe; 43. jet pipe;

[0036] 5. Liquid guide assembly; 51. Bellows; 52. One-way valve;

[0037] 6. Connection assembly; 61. Inner connection plate; 62. Outer connection plate; 63. Mounting plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] Example 1

[0041] See also Figure 1-Figure 7 As shown, the present embodiment provides an LED backlight source with a rotating dust cover, comprising an LED backlight source body 1, and a dust cover 2 for shielding dust and light is arranged on one side of the LED backlight source body 1. In the present embodiment, the LED backlight source body 1 can be directly installed on a wall or the ground when in use. When there is wind in the outdoor environment, the dust cover 2 can be rotated to block the light-emitting side of the dust cover 2. At this time, the dust cover 2 can block a large amount of dust generated by the outdoor wind, thereby reducing the effect of excessive dust attached to the LED backlight source body 1 on the diffusion of light, ensuring the light emission of the LED backlight source body 1, and facilitating the use of the LED backlight source body 1. Considering that the dust cover 2 is closed when wind appears, At this time, dust has adhered to the LED backlight source body 1 and cannot be cleaned, so a liquid storage component 3 for storing liquid is provided on the surface of the dustproof plate 2, and a driving component 4 is provided below the liquid storage component 3. The driving component 4 includes a driving piston 41 installed on the bottom surface of the dustproof plate 2, and a water accumulation pipe 42 is slidably provided on the outer side of the driving piston 41. The water accumulation pipe 42 is fixedly connected to the LED backlight source body 1, and one end of the water accumulation pipe 42 is connected to the liquid guide component 5, and one end of the liquid guide component 5 is connected to the liquid storage component 3. The driving component 4 is used to receive the liquid guided by the liquid guide component 5 and spray the liquid outward. When the liquid of the driving component 4 is sprayed outward, the dust in the air will be reduced, and the LED backlight source body 1 will be washed and cooled;

[0042] The dustproof plate 2 is tilted upward and opened, and the dustproof plate 2 causes the liquid storage component 3 to tilt upward, so that on rainy days, the liquid storage component 3 will receive rainwater from the environment (and when the dustproof plate 2 is tilted upward and opened, the dustproof plate will also guide the flow direction of rainwater dripping on the dustproof plate 2 to make it enter the liquid storage component 3, thereby accelerating the storage efficiency of rainwater in the liquid storage component 3), and transport it to the water accumulation pipe 42 through the liquid guide component 5. Under the connection of the driving piston 41, the rainwater will be stored between the driving piston 41 and the water accumulation pipe 42, and when the dustproof plate 2 is in an outwardly expanded state, the driving piston 41 is in the water accumulation pipe 42. The support provides a certain support force for fixing the position of the dustproof plate 2, reduces the shaking of the dustproof plate 2, and then when the dustproof plate 2 gradually seals the LED backlight source body 1, the driving piston 41 will move along the water accumulation pipe 42 to squeeze the rainwater outward, and the rainwater will contact the surface of the LED backlight source body 1 when it is sprayed outward, and the driving component 4 is arranged on the top of the LED backlight source body 1, and the rainwater will slide down from top to bottom to wash the LED backlight source body 1 that has been attached with dust, thereby improving the cleanliness of the LED backlight source body 1 and facilitating the subsequent light diffusion of the LED backlight source body 1;

[0043] As the rainwater is sprayed to the outside, dust in the environment is also reduced, which accelerates the falling of dust particles near the LED backlight source body 1, so as to solve the problem that a large amount of air dust is compressed onto the LED backlight source body 1 when the dustproof plate 2 gradually seals the LED backlight source body 1, and further performs dustproof treatment on the LED backlight source body 1;

[0044] When rainwater contacts the LED backlight source body 1, it will also take away the heat of the LED backlight source body 1 itself, which greatly reduces the temperature of the LED backlight source body 1 and increases the service life of the LED backlight source body 1; finally, when the dustproof plate 2 is tilted and folded downward to seal the LED backlight source body 1, the liquid storage component 3 is synchronously downward, which allows the liquid storage component 3 to tilt and guide out the dirt formed by dust accumulation when receiving rainwater and dust particles from the outside, or to guide out the fallen leaves that fall from the tree into the liquid storage component 3, thereby ensuring the cleanliness of the rainwater received by the liquid storage component 3 (and the liquid storage component 3 can also be directly injected with liquid for use, and the method of receiving rainwater is adopted to save water resources and facilitate use), thereby ensuring the cleanliness of the LED backlight source body 1 flushed by rainwater, which is beneficial to the light diffusion of the LED backlight source body 1; wherein, the LED backlight source adopted in this embodiment is the waterproof LED backlight source used on the market, so that the use of the LED backlight source will not be affected by flushing by rainwater.

[0045] In order to improve the dustproof effect of the dustproof plate 2 on the LED backlight source body 1, the end of the dustproof plate 2 close to the LED backlight source body 1 is an arc-shaped structure, and turntables 21 are installed on both sides of the dustproof plate 2. When the dustproof plate 2 is folded, due to the end of the arc-shaped structure, the end of the dustproof plate 2 close to the LED backlight source body 1 will always block the top of the LED backlight source body 1, thereby enhancing the dustproof effect on the LED backlight source body 1, and the dustproof plate 2 can be conveniently rotated and folded through the turntable 21.

[0046] Among them, the liquid storage component 3 includes a water storage plate 31 installed on the surface of the dustproof plate 2. The water storage plate 31 is a rectangular structure with an opening to one side. The water storage plate 31 is connected to the driving component 4 through the liquid guide component 5. A filter screen 32 for filtering foreign matter is installed inside the water storage plate 31. When the dustproof plate 2 is tilted and expanded outward, the water storage plate 31 can receive the dripping rainwater and introduce it to the driving component 4 through the liquid guide component 5. In order to filter fallen leaves or other foreign matter in the environment (foreign matter such as: paper scraps or garbage bags floating in the air, etc.) to avoid falling into the water storage plate 31 and affecting the purity of rainwater and causing blockage of the liquid guide component 5, the fallen leaves or other foreign matter can be filtered on the outside of the water storage plate 31 through the filter screen 32 to avoid the fallen leaves or other foreign matter from contacting with the rainwater gathered inside to reduce the purity of the rainwater and avoid the possibility of dirt adhering to the surface of the LED backlight source body 1 when the rainwater is washing the LED backlight source body 1.

[0047] The driving piston 41 includes a rod body connected to the water storage plate 31, and a piston is installed at one end of the rod body. The piston is slidably arranged in the water accumulation pipe 42. The movement of the water storage plate 31 drives the rod body to move, and the piston squeezes the liquid in the water accumulation pipe 42 to move to one side, and the liquid is ejected outward along the jet pipe 43.

[0048] Among them, the water accumulation pipe 42 is connected to a jet pipe 43, one end of the jet pipe 43 passes through the dustproof plate 2 and extends inward, and a plurality of openings are opened on the side wall of the jet pipe 43 near one end of the LED backlight source body 1, and the openings are all on the inner wall of the jet pipe 43 near the LED backlight source body 1. When the driving piston 41 squeezes the liquid in the water accumulation pipe 42, the liquid is sprayed out through the openings on the jet pipe 43, so as to reduce the dust mentioned above and clean and cool the surface of the LED backlight source body 1.

[0049] Among them, the liquid guiding component 5 includes a bellows 51 connected to the water storage plate 31, one end of the bellows 51 is connected to the water accumulation pipe 42, and the liquid stored in the water storage plate 31 can be introduced into the driving piston 41 through the bellows 51, which is conducive to the realization of the above-mentioned structural design (the bellows 51 refers to a tubular elastic sensitive element connected by a foldable corrugated sheet along the folding and telescopic direction).

[0050] Example 2

[0051] See also Figure 5 and Figure 6 As shown, considering that the water storage plate 31 follows the tilt and folding of the dustproof plate 2 to seal the LED backlight source body 1, the filter screen 32 is synchronously tilted to guide out leaves or other foreign matter, a guide plate 33 is provided on one side of the water storage plate 31, and the guide plate 33 is triangular (the triangular guide plate 33 can quickly guide and discharge rainwater or foreign matter to both sides to avoid gathering in front of the LED backlight source body 1), the guide plate 33 is installed on the surface of the dustproof plate 2, and one end corner of the guide plate 33 is located in the middle of the filter screen 32. Through the design of the guide plate 33, the leaves or other foreign matter guided out by the filter screen 32 can be deviated and slid to both sides, avoiding the leaves or other foreign matter gathering in front of the LED backlight source body 1 and affecting the use of the LED backlight source body 1, and when a large amount of rainwater gathers in the water storage plate 31 (because it can receive rainwater and other liquids, so it is collectively referred to as liquid below), the guide plate 33 will also divert the liquid guided out by the water storage plate 31 to the side to avoid a large amount of liquid gathering in front of the LED backlight source body 1.

[0052] Among them, the water storage plate 31 is clamped with a vertical plate 34 for sealing the water storage plate 31. When there is no rain outside due to weather conditions and there is no rainwater in the water storage plate 31, liquid can be manually injected into the water storage plate 31, and then the water storage plate 31 is sealed by the clamping of the vertical plate 34. The liquid can also enter the driving component 4, and when the water storage plate 31 is folded and sealed with the LED backlight source body 1 along with the dustproof plate 2, the liquid will not excessively seep out of the water storage plate 31. By taking this situation into consideration, the entire device can be used stably.

[0053] Example 3

[0054] See also Figure 5 and Figure 7 As shown, considering that when the driving piston 41 squeezes the liquid in the water pipe 42, the liquid will also flow back into the water storage plate 31, which causes part of the liquid to be unable to be ejected outward through the jet pipe 43. When the liquid cannot form a jet effect (due to the low pressure, the liquid will only flow out along the opening of the jet pipe 43 to the outer wall of the jet pipe 43 and cannot be ejected), it is impossible to perform dust reduction treatment on the nearby dust. Therefore, a one-way valve 52 is installed on the bellows 51 to limit the reflux of the liquid in the water pipe 42. The one-way valve 52 limits the liquid in the bellows 51 to flow only through the water storage plate 31 into the water pipe 42 and cannot flow back. This avoids the situation where the liquid passes through the jet pipe 43 without being ejected to reduce dust (the working principle of the one-way valve 52: under the action of the one-way flow fluid pressure, when the valve flap opens the fluid to flow in the opposite direction, the valve flap overlaps with the valve flap on the valve seat through the fluid pressure, thereby cutting off the flow).

[0055] Example 4

[0056] See also Figure 2 , Figure 3 and Figure 8 As shown, two groups of connecting components 6 are arranged on the side of the LED backlight source body 1, and the connecting components 6 include an inner connecting plate 61, and an outer connecting plate 62 is slidably arranged at one end of the inner connecting plate 61, and the outer connecting plate 62 is fixedly connected to a contact surface (the contact surface refers to a wall or a ground), and a mounting plate 63 is installed at the other end of the inner connecting plate 61, and the mounting plate 63 is fixedly connected to the LED backlight source body 1, and can be slid and extended in the outer connecting plate 62 through the inner connecting plate 61, and the mounting plate 63 and the LED backlight source body 1 are hingedly arranged, so that the end of the outer connecting plate 62 is fixedly connected to the contact surface, so that the LED backlight source body 1 can be suspended and installed or set on the ground, and the inclination degree of the LED backlight source body 1 can be adjusted according to the extension distance of the inner connecting plate 61, which is beneficial to the commercial use of the LED backlight source body 1.

[0057] The surfaces of the inner connecting plate 61 and the outer connecting plate 62 are both provided with connecting ports, which are fixed by bolts. The bolts penetrate and lock the corresponding connecting ports of the inner connecting plate 61 and the outer connecting plate 62, so that the inner connecting plate 61 can be locked in position after being extended, preventing the inner connecting plate 61 from sliding out of the outer connecting plate 62 due to the heavy weight of the LED backlight source body 1.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An LED backlight source with a rotating dust cover, comprising an LED backlight source body (1), a dust cover plate (2) for shielding dust and light being arranged on one side of the LED backlight source body (1), characterized in that: A liquid storage component (3) for storing liquid is arranged on the surface of the dustproof plate (2), a driving component (4) is arranged below the liquid storage component (3), the driving component (4) comprises a driving piston (41) mounted on the bottom surface of the dustproof plate (2), a water collection pipe (42) is slidably arranged on the outer side of the driving piston (41), the water collection pipe (42) is fixedly connected to the LED backlight source body (1), one end of the water collection pipe (42) is connected to a liquid guide component (5), one end of the liquid guide component (5) is connected to the liquid storage component (3), the driving component (4) is used to receive liquid guided by the liquid guide component (5) and eject the liquid outwardly, when the liquid of the driving component (4) is ejected outwardly, dust in the air is reduced, and the LED backlight source body (1) is flushed with dust and cooled; The liquid storage assembly (3) comprises a water storage plate (31) mounted on the surface of the dustproof plate (2); the water storage plate (31) is in a rectangular structure with an opening facing one side; the water storage plate (31) is in communication with the drive assembly (4) via a liquid guide assembly (5); a filter screen (32) for filtering foreign matter is installed inside the water storage plate (31); A guide plate (33) is provided on one side of the water storage plate (31); the guide plate (33) is triangular in shape; the guide plate (33) is mounted on the surface of the dustproof plate (2); and one corner of the guide plate (33) is located in the middle of the filter screen (32); The driving piston (41) comprises a rod body connected to the water storage plate (31), a piston being mounted on one end of the rod body, and the piston being slidably arranged in the water accumulation pipe (42); a jet pipe (43) is connected to the water accumulation pipe (42), one end of the jet pipe (43) passes through the dustproof plate (2) and extends inwardly, and a plurality of openings are formed on a side wall of the jet pipe (43) at one end close to the LED backlight source body (1); The liquid guiding component (5) comprises a bellows (51) connected to the water storage plate (31), and one end of the bellows (51) is connected to the water accumulation pipe (42); A one-way valve (52) for limiting the backflow of liquid in the water accumulation pipe (42) is installed on the bellows (51).

2. The LED backlight source with a rotating dust cover according to claim 1, characterized in that: One end of the dustproof plate (2) close to the LED backlight source body (1) is an arc-shaped structure, and rotating disks (21) are installed on both sides of the dustproof plate (2).

3. The LED backlight source with a rotating dust cover according to claim 1, characterized in that: A vertical plate (34) for sealing the water storage plate (31) is clamped onto the water storage plate (31).

4. The LED backlight source with a rotating dust cover according to claim 1, characterized in that: Two groups of connection components (6) are arranged on the side of the LED backlight source body (1), and each of the connection components (6) comprises an inner connection plate (61), an outer connection plate (62) is slidably arranged at one end of the inner connection plate (61), and the outer connection plate (62) is fixedly connected to the contact surface; a mounting plate (63) is installed at the other end of the inner connection plate (61), and the mounting plate (63) is fixedly connected to the LED backlight source body (1).

5. The LED backlight source with a rotating dust cover according to claim 4, characterized in that: The surfaces of the inner connecting plate (61) and the outer connecting plate (62) are both provided with connecting openings, and the connecting openings are fixed by bolts.