LED backlight based on concave plastic frame to prevent impact

Abstract

The present invention relates to an LED backlight source, and more specifically, to an LED backlight source based on a recessed plastic frame for impact protection. It includes a backlight panel body and a sealing component. The present invention blocks the curved pipe by the side of the sealing plate, so that the reset spring maintains a bent state. When the backlight panel body is separated from the wall, each plug-in column is separated from the side of the sealing plate, and the reset spring returns to its initial state, driving the curved pipe to straighten and keep it perpendicular to the curved pipe. The backlight panel body is protected by each curved pipe. Each end of the curved pipe in a vertical state contacts the ground in advance, and the pressure generated by the ground directly acts on the end of the curved pipe. After the curved pipe is subjected to pressure, it drives the reset spring to compress. During the compression process of the reset spring, a reaction force is generated to neutralize the pressure on the curved pipe, and a buffering effect is played on the backlight panel body, reducing the damage to the backlight panel body after it falls to the ground, and improving the protective function of the backlight panel body.

Description

Technical Field

[0001] The invention relates to an LED backlight source, in particular to an LED backlight source based on a recessed plastic frame for preventing impact. Background Art

[0002] The backlight module usually uses LED light strips as the backlight light source. Correspondingly, the LED light strips used for the backlight module are also called LED backlight light sources. The light emitted by the light source enters the light guide plate and encounters scattered light points in the light guide plate for diffuse reflection. The light directed to the bottom of the light guide plate is reflected by the reflector and emitted through the light guide plate to achieve the backlight effect.

[0003] During the inspection of the LED backlight source, the LED backlight source will be fixed to the wall. Since the LED backlight source needs to be tested in different states during the test phase, the LED backlight source often needs to be disassembled. Therefore, the fixation of the LED backlight source cannot be too strong, which increases the difficulty of disassembly. Due to the poor fixing effect of this test device, it is easy to fall during the test phase, causing damage to the LED backlight source. A small number of test devices will set protective devices such as sponge boards under the LED backlight source to reduce damage to the LED backlight source. However, due to the different tendencies of the LED backlight source to fall downward, the surface that contacts the protective device is also different, which greatly reduces the protective ability of the protective device. Therefore, there is an urgent need for an LED backlight source based on a recessed plastic frame to prevent impact. Summary of the invention

[0004] The object of the present invention is to provide an LED backlight source based on a recessed plastic frame to prevent impact, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, an LED backlight source based on a recessed plastic frame for impact protection is provided, comprising a backlight panel body, the backlight panel body comprising an outer frame, a display screen being arranged in the middle position of the outer frame, arc grooves being provided at both upper and lower ends of both sides of the outer frame, a plane protection component being provided at the inner end of the arc groove, the plane protection component comprising a bent pipe, one end of the bent pipe being in an arc-shaped structure, a return spring being connected at the end position of the arc structure, the end of the return spring being connected to the inner end of the arc groove, the other end of the bent pipe being in a straight tube structure, a plug hole being provided at the end position of the straight tube structure, sealing components being fitted on both sides of the outer frame, the sealing components comprising a sealing plate, the sealing plate being fitted on the side surface of the outer frame, a through groove being provided on the side surface of the sealing plate, one end of the bent pipe being squeezed to fit with the inner end of the arc groove, driving the return spring to bend, plug-in columns being plugged and matched on both sides of the sealing plate, the plug columns passing through the plug holes to connect to another sealing plate to maintain the bending state of the return spring.

[0006] As a further improvement of the technical solution, an inner block is arranged inside one end of the bent pipe, and a limit spring is connected to one side of the inner block, and the limit spring is connected to the inner end of the bent pipe.

[0007] As a further improvement of the technical solution, a sealing head is inserted at the end of the bent pipe, and the cross-sectional size of the sealing head is consistent with the cross-sectional size of the inner end of the bent pipe.

[0008] As a further improvement of the technical solution, a gripping rod is plugged into one side of the sealing head, and a buffer spring is connected between the side surface of the gripping rod and the inner end of the sealing head.

[0009] As a further improvement of the present technical solution, each top corner position of the outer frame is provided with a corner groove, and a corner protection component is arranged at the inner end of the corner groove. The corner protection component includes a rotating shaft, and U-shaped plates are arranged on both sides of the rotating shaft. Both ends of the U-shaped plate are rotatably connected to the rotating shaft, and a torsion spring is arranged at the connection position. Bosses are inserted on the upper and lower sides of the U-shaped plate, and a telescopic spring is connected between the end of the boss and the inner end of the U-shaped plate.

[0010] As a further improvement of the technical solution, bottom blocks are provided on both sides of the end of the protruding column.

[0011] As a further improvement of the technical solution, the edge of the bottom block is in an arc-shaped structure.

[0012] As a further improvement of the technical solution, a plate is provided at one end of the plug post, and the plate is fitted with the side surface of the sealing plate.

[0013] As a further improvement of the technical solution, a pair of fan-shaped disks are provided at the edge positions on both sides of the sealing plate, and the fan-shaped disks are consistent with the cross-sectional dimensions of the arc groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the LED backlight source based on the recessed plastic frame for impact protection, the side of the sealing plate is used to block the bent pipe, so that the reset spring maintains a bent state. When the backlight body is separated from the wall, each plug column is separated from the side of the sealing plate, the sealing plate is separated from the side of the outer frame, and each bent pipe loses its barrier. The reset spring returns to its initial state, driving the bent pipe to straighten and keep it vertical to protect the backlight body. The ends of each bent pipe in a vertical state contact the ground in advance, and the pressure generated by the ground directly acts on the end of the bent pipe. After the bent pipe is subjected to pressure, it drives the reset spring to be compressed. During the compression of the reset spring, a reaction force is generated to neutralize the pressure on the bent pipe, thereby buffering the backlight body, reducing the damage to the backlight body after it falls to the ground, and improving the protection function of the backlight body.

[0016] 2. In the LED backlight source based on the recessed plastic frame for impact protection, a grip rod is provided to buffer the sealing head. When the sealing head falls to the ground, the end of the grip rod contacts the ground instead of the sealing head. When subjected to the pressure of the ground, the buffer spring is squeezed. The reaction force generated by the contraction of the buffer spring toward the inner end of the sealing head offsets the pressure, thereby buffering the sealing head and protecting the separated sealing head.

[0017] 3. In the LED backlight source based on the recessed plastic frame for impact protection, the bottom block is provided to improve the stability of the contact between the end of the protruding column and the ground, increase the contact area between the end of the protruding column and the ground, reduce the occurrence of edge contact, and further improve the buffering effect of the protruding column.

[0018] 4. In the LED backlight source based on the recessed plastic frame for impact protection, a force point is provided to the installer through the arranged plug-in column. When removing or installing the plug-in column, the installer can hold the plate to pull out or insert the plug-in column, thereby improving the efficiency of removing and installing the plug-in column and preventing the plug-in column from being inserted too deeply, resulting in the inability to pull out the plug-in column at a later time, which affects the service life of the plug-in column. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a disassembled diagram of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the backlight panel body of the present invention;

[0022] Figure 4 For the present invention Figure 3 A local enlarged view of point A;

[0023] Figure 5 For the present invention Figure 3 A partial enlarged view of point B;

[0024] Figure 6 It is a split cross-sectional view of the planar protection component structure of the present invention;

[0025] Figure 7 This is a structural breakdown diagram of the corner protection assembly of the present invention;

[0026] Figure 8 It is a schematic diagram of the sealing component structure of the present invention.

[0027] The meaning of each number in the figure is:

[0028] 10. Backlight body; 110. Outer frame; 111. Display screen; 112. Arc groove; 113. Corner groove; 120. Plane protection assembly; 121. Bend pipe; 1211. Jack; 122. Reset spring; 123. Inner block; 124. Limit spring; 125. Sealing head; 126. Grip rod; 127. Buffer spring; 130. Corner protection assembly; 131. Rotating shaft; 132. U-shaped plate; 1321. Side hole; 133. Boss; 1331. Bottom block; 134. Telescopic spring;

[0029] 20. Sealing assembly; 210. Sealing plate; 211. Through groove; 220. Insert column. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] See also Figure 1-Figure 8As shown, an LED backlight source based on a recessed plastic frame for impact protection is provided, including a backlight panel body 10, the backlight panel body 10 includes an outer frame 110, a display screen 111 is arranged in the middle of the outer frame 110, arc grooves 112 are provided at both ends of the outer frame 110, a plane protection component 120 is arranged at the inner end of the arc groove 112, and the plane protection component 120 includes a bent pipe 121, one end of the bent pipe 121 is an arc-shaped structure, and a reset spring 122 is connected to the end of the arc structure, and the end of the reset spring 122 is connected to the inner end of the arc groove 112, and the bent pipe 121 is connected to the inner end of the arc groove 112. One end is a straight tube structure, and a socket 1211 is provided at the end of the straight tube structure. Sealing components 20 are attached to both sides of the outer frame 110. The sealing component 20 includes a sealing plate 210. The sealing plate 210 is attached to the side of the outer frame 110. A through groove 211 is provided on the side of the sealing plate 210. One end of the extruded elbow 121 is attached to the inner end of the arc groove 112 to drive the return spring 122 to bend. Both sides of the sealing plate 210 are plugged with plug posts 220, which pass through the socket 1211 to connect to the other sealing plate 210 to maintain the return spring 122 in a bent state.

[0033] When in use, first, pull out each plug post 220 from the side of the sealing plate 210, move the two sealing plates 210 to fit on both sides of the outer frame 110, and move one end of the curved tube 121 so that one end of the curved tube 121 fits on the inner side of the arc groove 112. At this time, insert each plug post 220 into each vertex position of the sealing plate 210, and pass through the inner end of the insertion hole 1211 to fix the two sealing plates 210 and the outer frame 110, so that the entire backlight panel body 10 fits on the wall, and the side of the sealing plate 210 blocks the curved tube 121, so that the return spring 122 maintains a bent state. When the backlight panel body 10 is detached from the wall, each plug post 220 is detached from the side of the sealing plate 210, and the sealing plate 210 and the side of the outer frame 110 are Separated, each bent tube 121 loses its obstruction, and the return spring 122 returns to its initial state, driving the bent tube 121 to straighten and keep it vertical to the bent tube 121. The backlight panel body 10 is protected by each bent tube 121. When the entire backlight panel body 10 falls to the ground, the ends of each vertical bent tube 121 contact the ground in advance, and the pressure generated by the ground directly acts on the end of the bent tube 121. After the bent tube 121 is subjected to pressure, it drives the return spring 122 to be compressed. During the compression process of the return spring 122, a reaction force will be generated to neutralize the pressure on the bent tube 121, thereby buffering the backlight panel body 10, reducing the damage to the backlight panel body 10 after falling to the ground, and improving the protection function of the backlight panel body 10.

[0034] In addition, an inner block 123 is provided inside one end of the curved tube 121, and a limiting spring 124 is connected to one side of the inner block 123, and the limiting spring 124 is connected to the inner end of the curved tube 121. When the return spring 122 is in a bent state, one end of the inner block 123 is blocked by the inner wall of the arc groove 112, and the arc groove 112 causes the limiting spring 124 to be in a compressed state. After the sealing plate 210 is separated from the side of the outer frame 110, the return spring 122 loses pressure, driving the curved tube 121 to straighten. At this time, the end of the inner block 123 is separated from the inner wall of the arc groove 112, and the limiting spring 124 loses pressure, and reversely drives the inner block 123 to extend out of the inner end of the curved tube 121. When the curved tube 121 touches the bottom, the end of the inner block 123 contacts the ground, and the pressure applied by the ground causes the limiting spring 124 to compress inwardly. The reverse force provided by the contraction of the limiting spring 124 will offset the pressure applied by the ground, further improving the buffering function of the curved tube 121.

[0035] Furthermore, a sealing head 125 is inserted into the end of the curved pipe 121 , and the cross-sectional dimensions of the sealing head 125 are consistent with the cross-sectional dimensions of the inner end of the curved pipe 121 . When in use, after the inner block 123 extends into the inner end of the curved tube 121, the sealing head 125 is inserted into the end of the curved tube 121 to block the end of the inner block 123, further squeezing the inner block 123 to extend into the inner end of the curved tube 121, prompting the limit spring 124 to be further compressed. When the curved tube 121 is separated from the inner wall of the arc groove 112, the end of the sealing head 125 is separated from the inner wall of the arc groove 112, and the limit spring 124 loses pressure, driving the inner block 123 to extend out of the inner end of the curved tube 121, prompting the inner block 123 to push the side of the sealing head 125, and the sealing head 125 is separated from the inner end of the curved tube 121. The limit spring 124 accelerates the inner block 123 to extend out of the inner end of the curved tube 121, and accelerates the extension speed of the inner block 123 to prevent the outer frame 110 from falling to the ground too fast. The inner block 123 has not yet extended out of the inner end of the curved tube 121, and the outer frame 110 has already contacted the ground, resulting in the inner block 123 being unable to play a buffering role in time.

[0036] After the sealing head 125 is separated from the end of the bent pipe 121, the sealing head 125 will fall downward, and the gravity generated will directly act on the sealing head 125, causing damage to the sealing head 125 and affecting the service life of the sealing head 125. Furthermore, a grip rod 126 is plugged into one side of the sealing head 125, and a buffer spring 127 is connected between the side of the grip rod 126 and the inner end of the sealing head 125. The setting of the grip rod 126 has a buffering effect on the sealing head 125. When the sealing head 125 falls to the ground, the end of the grip rod 126 contacts the ground instead of the sealing head 125. After being subjected to the pressure of the ground, the buffer spring 127 will be squeezed. The reaction force generated by the contraction of the buffer spring 127 toward the inner end of the sealing head 125 offsets the pressure, thereby having a buffering effect on the sealing head 125 and protecting the separated sealing head 125.

[0037] Specifically, each top corner position of the outer frame 110 is provided with a corner groove 113, and the inner end of the corner groove 113 is provided with a corner protection component 130. The corner protection component 130 includes a rotating shaft 131, and U-shaped plates 132 are provided on both sides of the rotating shaft 131. Both ends of the U-shaped plate 132 are rotatably connected to the rotating shaft 131, and a torsion spring is provided at the connection position. Bosses 133 are inserted on the upper and lower sides of the U-shaped plate 132, and a telescopic spring 134 is connected between the end of the boss 133 and the inner end of the U-shaped plate 132. When the sealing plate 210 is attached to the side of the outer frame 110, the two U-shaped plates 132 are squeezed to fit the inner side of the corner groove 113. At this time, the torsion spring is in a compressed state, and the ends of the two protrusions 133 are respectively attached to the upper and lower inner walls of the corner groove 113, and the telescopic spring 134 is in a compressed state. When the sealing plate 210 is separated from the side of the outer frame 110, the U-shaped plate 132 loses its barrier, and the torsion spring loses its pressure, driving the two U-shaped plates 132 to rotate around the rotating shaft 131, so that the U-shaped plate 132 rotates to be perpendicular to the corner groove 113. When the U-shaped plate 132 is separated from the inner wall of the corner groove 113, each telescopic spring 134 drives The protruding column 133 extends out from the inner end of the side hole 1321. When the outer frame 110 falls vertically downward, the edge of the outer frame 110 will directly contact the ground, and the bent pipe 121 cannot contact the ground in advance, resulting in the bent pipe 121 being unable to play a buffering role. The U-shaped plate 132 is provided to protect the outer frame 110 that falls vertically downward. The end of the U-shaped plate 132 that extends out in advance will contact the ground instead of the edge of the outer frame 110. The inwardly contracted telescopic spring 134 provides a certain buffering force to the outer frame 110, thereby reducing the damage to the outer frame 110 that falls vertically downward and improving the protection effect of the outer frame 110.

[0038] Since the end of the protruding column 133 is in a circular structure, the edge position can easily come into direct contact with the ground. The pressure generated after the contact is too large, causing the entire outer frame 110 to bounce upward with a larger amplitude, which may cause secondary damage to the outer frame 110. In addition, bottom blocks 1331 are provided on both sides of the end of the protruding column 133. When the end of the protruding column 133 comes into contact with the ground, the stability of the contact between the end of the protruding column 133 and the ground is improved by the provided bottom block 1331, the contact area between the end of the protruding column 133 and the ground is increased, the occurrence of edge contact is reduced, and the buffering effect of the protruding column 133 is further improved.

[0039] Furthermore, the edge of the bottom block 1331 is in an arc shape. When in use, the edge of the bottom block 1331 is designed to be arc-shaped, so that the edge of the bottom block 1331 is smoother, and after contacting the ground, the rebound amplitude is reduced, the rebound height of the outer frame 110 is reduced, and the gravity generated by falling again becomes smaller, and the damage is reduced, which further improves the protection effect of the protrusion 133.

[0040] Furthermore, a contact plate is provided at one end of the plug post 220, and the contact plate is contacted with the side of the sealing plate 210. The provided plug post 220 provides a force point for the installer, and when removing or installing the plug post 220, the contact plate can be held to pull out or insert the plug post 220, thereby improving the removal and installation efficiency of the plug post 220 and preventing the plug post 220 from being inserted too deeply, resulting in the inability to pull out the plug post 220 later, which affects the service life of the plug post 220.

[0041] In addition, a pair of fan-shaped discs are provided at both sides of the sealing plate 210, and the fan-shaped discs are consistent with the cross-sectional dimensions of the arc groove 112. When in use, the end of the arc groove 112 is sealed by the fan-shaped discs. When the sealing plate 210 is attached to the side of the outer frame 110, each fan-shaped disc is inserted into the corresponding inner end of the arc groove 112 to seal one side of the inner end of the arc groove 112. At the same time, one end of the fan-shaped disc contacts the end of the grip rod 126 to fit the end of the grip rod 126, thereby improving the fitting stability between the grip rod 126 and the inner end of the curved pipe 121.

[0042] 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 based on a recessed plastic frame for impact protection, comprising a backlight panel body (10), wherein the backlight panel body (10) comprises an outer frame (110), wherein a display screen (111) is arranged in the middle of the outer frame (110), and wherein: Both upper and lower ends of the two sides of the outer frame (110) are provided with arc grooves (112), the inner ends of the arc grooves (112) are provided with plane protection components (120), the plane protection components (120) include a curved tube (121), one end of the curved tube (121) is in an arc-shaped structure, the end of the curved structure is connected to a return spring (122), the end of the return spring (122) is connected to the inner end of the arc groove (112), the other end of the curved tube (121) is in a straight tube structure, the end of the straight tube structure is provided with a plug hole (1211), and both sides of the outer frame (110) are in close contact with each other. A sealing assembly (20), wherein the sealing assembly (20) comprises a sealing plate (210), wherein the sealing plate (210) is attached to the side of the outer frame (110), wherein a through groove (211) is provided on the side of the sealing plate (210), and wherein one end of the bent tube (121) is squeezed to fit with the inner end of the arc groove (112), thereby driving the return spring (122) to bend, and plug posts (220) are inserted and matched on both sides of the sealing plate (210), wherein the plug posts (220) pass through the plug holes (1211) to connect to another sealing plate (210), thereby maintaining the return spring (122) in a bent state.

2. The LED backlight source based on the recessed plastic frame for impact protection according to claim 1, characterized in that: An inner block (123) is arranged inside one end of the curved pipe (121), one side of the inner block (123) is connected to a limit spring (124), and the limit spring (124) is connected to the inner end of the curved pipe (121).

3. The LED backlight source based on the concave plastic frame for impact protection according to claim 2, characterized in that: A sealing head (125) is inserted at the end of the curved pipe (121), and the cross-sectional dimensions of the sealing head (125) are consistent with the cross-sectional dimensions of the inner end of the curved pipe (121).

4. The LED backlight source based on the concave plastic frame for impact protection according to claim 3, characterized in that: A gripping rod (126) is inserted and matched at one side of the sealing head (125), and a buffer spring (127) is connected between the side surface of the gripping rod (126) and the inner end of the sealing head (125).

5. The LED backlight source based on the concave plastic frame for impact protection according to claim 1, characterized in that: Each vertex position of the outer frame (110) is provided with a corner groove (113), and a corner protection component (130) is arranged at the inner end of the corner groove (113). The corner protection component (130) comprises a rotating shaft (131), and U-shaped plates (132) are arranged on both sides of the rotating shaft (131). Both ends of the U-shaped plate (132) are rotatably connected to the rotating shaft (131), and a torsion spring is arranged at the connection position. The upper and lower sides of the U-shaped plate (132) are plugged with convex columns (133), and a telescopic spring (134) is connected between the end of the convex column (133) and the inner end of the U-shaped plate (132).

6. The LED backlight source based on the concave plastic frame for impact protection according to claim 5, characterized in that: Bottom blocks (1331) are provided on both sides of the end of the convex column (133).

7. The LED backlight source based on the concave plastic frame for impact protection according to claim 6, characterized in that: The edge of the bottom block (1331) is in an arc-shaped structure.

8. The LED backlight source based on the concave plastic frame for impact protection according to claim 1, characterized in that: A contact plate is provided at one end of the plug post (220), and the contact plate is in contact with the side surface of the sealing plate (210).

9. The LED backlight source based on the concave plastic frame for impact protection according to claim 8, characterized in that: A pair of fan-shaped disks are provided at the edge positions on both sides of the sealing plate (210), and the cross-sectional dimensions of the fan-shaped disks and the arc groove (112) are consistent.

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