Anti-static mini LED backlight source

Abstract

The anti-static mini LED backlight source comprises a mounting frame, an embedding groove is formed in an inner frame of the mounting frame, a light guide plate is embedded and mounted in the embedding groove, one side wall of the light guide plate abuts against the end face of an LED light bar, the LED light bar is mounted on the inner wall of the mounting frame in an attached mode, and the anti-static mini LED backlight source further comprises a limiting mounting assembly; and an auxiliary movable assembly. Two shifting plates are shifted oppositely, long rods are fixedly connected to the ends of the shifting plates, second blocks are fixedly connected to the ends of the long rods, clamping blocks are fixed to the ends of the second blocks, in the process of shifting the shifting plates oppositely, the two clamping blocks move oppositely, one side wall of each block is tightly attached to the side wall, away from an LED light bar, of a light guide plate, and the two shifting plates are loosened; at the moment, the first spring and the second spring lose the action of force and start to reset, the two sets of clamping blocks move separately along with the first spring and the second spring to be clamped into the clamping grooves reserved in the mounting frame, the whole light guide plate and the mounting frame are mounted, glue is not used in the whole process, and the light guide plate is convenient to disassemble, maintain and maintain subsequently.

Description

Technical Field

[0001] The present invention relates to the field of anti-static miniLED backlight source, and in particular to an anti-static miniLED backlight source. Background Art

[0002] The backlight is the light source behind the LCD display. Because the liquid crystal material itself does not emit light, it must rely on external light sources to achieve the display function. The backlight is generally located behind the LCD panel, so it is called a backlight. Compared with the traditional CCFL backlight, the most significant advantage of LED backlight is that it can provide unprecedented color reproduction. The LED patch lamp backlight needs to transmit the light emitted by the patch lamp forward while being fully reflected in the light guide plate. The reflection point pattern at the bottom of the light plate changes regularly. Part of the light with an incident angle less than the total reflection angle can be emitted from the upper surface of the light guide plate, turning the line light source into a surface light source.

[0003] Most of the existing backlight sources on the market are mainly composed of a light source, a light guide plate, an optical module, and structural parts. Glue is usually needed to fix the light guide plate to the structural assembly to facilitate the subsequent use of the entire backlight source. Although the glue has good viscosity, it is necessary to replace the light guide plate that has been in service for a long time or is damaged. It takes a lot of effort to separate the light guide plate from the installation assembly, which is inconvenient.

[0004] Therefore, it is necessary to invent an anti-static mini LED backlight source to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-static miniLED backlight source to solve the problem raised in the above background technology that most of the existing backlight sources on the market are mainly composed of a light source, a light guide plate, an optical module, and structural parts. It is usually necessary to use glue to fix the light guide plate on the structural assembly to facilitate the subsequent use of the entire backlight source. Although the glue has good viscosity, it is necessary to replace the light guide plate that has been in service for a long time or is damaged in the future, and it takes a lot of effort to separate the light guide plate from the installation assembly, which is inconvenient to operate.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an anti-static miniLED backlight source, comprising a mounting frame, an embedding groove is provided in the internal frame of the mounting frame, and a light guide plate is embedded and installed in the embedding groove, a side wall of the light guide plate abuts against the end face of the LED light bar, and the LED light bar is fitted on the inner wall of the mounting frame, and also includes:

[0007] A limit installation component, wherein a body block 1 is attached to and movably installed on a side wall of one side of the light guide plate, a notch is provided inside the body block 1, and a dial plate is movably connected to the inner wall of the notch, a long rod is fixedly connected to the end of the dial plate, and a body block 2 is fixedly connected to the end of the long rod, and a card block is fixedly connected to the end of the body block 2, and the card block matches the card slot inside the fitting groove;

[0008] Auxiliary movable component, the body block 2 is provided with an open cavity inside, and the top wall and the bottom wall of the cavity are connected to form a slide groove, and a vertical pole 1 is slidably connected in the slide groove, a connecting cross bar is welded to the outer wall of the vertical pole 1, and a connecting vertical pole is fixedly connected to the bottom of the connecting cross bar, and a spring 3 is fixedly connected between the connecting vertical pole and the inner wall of the cavity.

[0009] Preferably, the installation frame is in an open arch shape, and open fitting grooves are provided inside the frame body at two symmetrical locations on both sides of the installation frame, and the outer walls of the two ends of the light guide plate close to the fitting grooves are in contact with the inner walls of the fitting grooves and are slidably connected.

[0010] Preferably, the body block 1 is located at the center of a side wall of the light guide plate that is not in contact with the LED light strip;

[0011] A square notch is provided inside the body block 1, and the two side walls of the paddle are fitted with and slidably connected to the inner wall of the notch, and the top and bottom of the paddle are flush with the top and bottom of the body block 1.

[0012] Preferably, there are two paddle plates, and the two paddle plates are symmetrically arranged inside the notch, and the two ends of the second spring are fixedly connected to the two paddle plates respectively;

[0013] There is a gap slightly larger than the thickness of a thumb between the two paddles and the left and right end walls inside the notch;

[0014] Long rods are fixedly connected to the surfaces of the left and right end walls of the two shifting plates near the inside of the notch, and the long rods pass through two symmetrical columnar grooves reserved inside the body block, and the outer walls of the long rods fit and are slidably connected to the inner walls of the columnar grooves.

[0015] Preferably, a spring 1 is movably sleeved on the outer ring of the long rod, and the two ends of the spring 1 are respectively fixedly connected to the body block 1 and the body block 2, and a gap is left between one side wall of the spring and the side wall of the light guide plate.

[0016] Preferably, the number of the vertical poles 1 is two, and the two vertical poles 1 are respectively close to the two end walls of the cavity and are symmetrically arranged;

[0017] The outer wall of the vertical pole one is movably sleeved with a sleeve, two vertically symmetrical connecting cross bars are fixedly connected between the upper end and the lower end outer walls of the two vertical poles one, and two symmetrical connecting vertical bars are fixedly connected between the two connecting cross bars.

[0018] Preferably, the outer walls of the upper and lower ends of the vertical rod 1 are connected to the top wall and the bottom wall of the cavity, and are provided with inner walls of a slide groove to fit and slide with each other.

[0019] Preferably, a plurality of vertical poles 2 are fixedly connected between the two connecting cross bars at equal intervals, and a sleeve is movably sleeved on the outer wall of the vertical pole 2, and the outer walls of the sleeve movably sleeved on the outer wall of the vertical pole 1 and the vertical pole 2 are in contact with one side wall of the light guide plate.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] 1. The light guide plate is movably engaged in the embedded grooves reserved in the frames on both sides of the installation frame, so that the light guide plate and the installation frame can be detachably installed, and the two plates are moved toward each other. The ends of the plates are fixedly connected with a long rod, and the ends of the long rod are fixedly connected with a body block 2, and the ends of the body block 2 are fixed with a card block. In the process of moving the plates toward each other, the two groups of symmetrical card blocks are driven to move toward each other, and then one side wall of the body block is pressed against the side wall of the light guide plate away from the LED light bar, and the two plates are released. At this time, the springs 1 and 2 lose their force and begin to reset, and the two groups of card blocks are separated and engaged in the card slots reserved inside the installation frame. In this way, the entire light guide plate and the installation frame are installed, and no glue is used throughout the process. It is also more convenient to disassemble, repair and maintain the light guide plate later;

[0022] 2. Move the paddle plate, and the movement of the long rod drives the movement of the body block 2 so that the card block fixed at the end of the body block can leave the card slot. During the movement of the body block 2, multiple sets of sleeves are in contact with the side wall of the light guide plate, making the movement of the body block 2 smoother. The outer wall of the sleeve is pasted with flocking fabric, so that during the movement of the body block 2, no friction is generated on the side wall of the light guide plate, thereby affecting the use of the light guide plate.

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0025] Figure 2 It is an exploded view of the overall structure of the present invention;

[0026] Figure 3 It is a three-dimensional diagram of the position limiting installation assembly (partial cutaway state of the body block) of the present invention;

[0027] Figure 4 It is a three-dimensional diagram of the connection structure between the auxiliary movable assembly and the second body block of the present invention;

[0028] Figure 5 It is an exploded view of the auxiliary movable assembly and the body block of the present invention.

[0029] Description of reference numerals:

[0030] 1. Installation frame; 2. LED light strip; 3. Light guide plate; 4. Fitting groove; 5. Position-limiting installation assembly; 51. Block 1; 52. Block 2; 53. Notch; 54. Columnar groove; 55. Long rod; 56. Spring 1; 57. Spring 2; 58. Paddle; 59. Block; 510. Slot; 6. Auxiliary movable assembly; 61. Cavity; 62. Slide; 63. Vertical pole 1; 64. Sleeve; 65. Vertical pole 2; 66. Connecting cross bar; 67. Connecting vertical rod; 68. Spring 3. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1-5 The anti-static miniLED backlight shown includes a mounting frame 1, an embedding groove 4 is provided in the internal frame of the mounting frame 1, and a light guide plate 3 is embedded and installed inside the embedding groove 4, a side wall of the light guide plate 3 abuts against the end face of the LED light bar 2, and the LED light bar 2 is fitted to the inner wall of the mounting frame 1, and also includes:

[0033] The limit installation component 5 has a body block 1 51 attached to and movably installed on the side wall of one side of the light guide plate 3, and a notch 53 is opened inside the body block 1 51, and a dial plate 58 is movably connected to the inner wall of the notch 53, and a long rod 55 is fixedly connected to the end of the dial plate 58, and a body block 2 52 is fixedly connected to the end of the long rod 55, and a clamping block 59 is fixedly connected to the end of the body block 2 52, and the clamping block 59 matches the clamping groove 510 inside the fitting groove 4, and is used for the limit installation of the installation frame 1 and the light guide plate 3, so as to prevent the light guide plate 3 from shifting during use and affecting the appearance;

[0034] The auxiliary movable component 6 has an open cavity 61 inside the body block 2 52, and a slide groove 62 is formed in the top and bottom walls of the cavity 61, and a vertical rod 63 is slidably connected in the slide groove 62, a connecting cross bar 66 is welded to the outer wall of the vertical rod 63, and a connecting vertical rod 67 is fixedly connected to the bottom of the connecting cross bar 66, and a spring three 68 is fixedly connected between the connecting vertical rod 67 and the inner wall of the cavity 61, which is used to assist the movement of the limit installation component 5.

[0035] The mounting frame 1 is in an open arch shape, and open fitting grooves 4 are provided inside the frame body at two symmetrical locations on both sides of the mounting frame 1, and the outer walls of the two ends of the light guide plate 3 close to the fitting grooves 4 are fitted with and slidably connected to the inner walls of the fitting grooves 4, so that the light guide plate 3 and the mounting frame 1 can be movably installed without the use of glue.

[0036] The body block 1 51 is located at the center of a side wall of the light guide plate 3 that is not in contact with the LED light strip 2;

[0037] A square notch 53 is provided inside the body block 1 51 and passes through from top to bottom. The two side walls of the dial plate 58 are in contact with the inner wall of the notch 53 and are slidably connected thereto. The top and bottom of the dial plate 58 are flush with the top and bottom of the body block 1 51 , so that the dial plate 58 does not affect the subsequent installation of the mounting frame 1 and the use of the entire backlight source.

[0038] There are two paddles 58, and the two paddles 58 are symmetrically arranged inside the notch 53, and the two ends of the spring 57 are respectively fixedly connected to the two paddles 58, so that the two paddles 58 can be reset after being moved.

[0039] There is a gap slightly larger than the thickness of a thumb between the two shifting plates 58 and the left and right end walls inside the notch 53, so that subsequent operators can shift the two sets of shifting plates 58;

[0040] Long rods 55 are fixedly connected to the surfaces of the left and right end walls of the two shift plates 58 near the notch 53, and the long rods 55 pass through two symmetrical columnar grooves 54 reserved inside the body block 1 51. The outer wall of the long rod 55 fits with the inner wall of the columnar groove 54 and is slidably connected. In the process of shifting the shift plates 58, the long rods 55 are used to mobilize the movement of the body block 2 52, thereby facilitating the engagement and disassembly of the card block 59 and the card groove 510, and facilitating the subsequent installation or disassembly of the light guide plate 3.

[0041] A spring 56 is movably sleeved on the outer ring of the long rod 55, and the two ends of the spring 1 56 are fixedly connected to the body block 1 51 and the body block 2 52 respectively, and a gap is left between the side wall of the spring 1 56 and the side wall of the light guide plate 3. In the process of shifting the dial plate 58, the body block 2 52 is mobilized to move toward the direction of the body block 1 51 through the long rod 55. At the same time, in the process of the direction of the body block 2 52 moving toward the body block 1 51, the body block 2 52 squeezes the spring 1 56 so that the spring 1 56 is deformed by the force. When the subsequent applied force disappears, the spring 1 56 resets and pushes the body block 2 52 and the block 59 fixedly connected to the end of the body block 2 52 to move toward the embedded groove 4 reserved in the frame of the installation frame 1 and the columnar slot 510 connected to the embedded groove 4. The block 59 is finally engaged with the slot 510 to ensure the stability of the installation of the entire limit installation assembly 5.

[0042] There are two vertical rods 63, and the two vertical rods 63 are respectively close to the two end walls of the cavity 61 and are symmetrically arranged;

[0043] A sleeve 64 is movably sleeved on the outer wall of the vertical pole 1 63, two vertically symmetrical connecting cross bars 66 are fixedly connected between the upper end and the lower end outer wall of the two vertical poles 63, and two symmetrical connecting vertical bars 67 are fixedly connected between the two connecting cross bars 66. The spring three 68 pushes the connecting vertical bar 67 so that the sleeve 64 that is transmission sleeved on the outer wall of the vertical pole 1 63 and the vertical pole 2 65 is always close to the side wall of the light guide plate 3, which facilitates the subsequent movement of the body block 2 52.

[0044] The outer walls of the upper and lower ends of the vertical rod 1 63 are connected to the top wall and the bottom wall of the cavity 61 and are fitted with the inner wall of the sliding groove 62 for sliding connection.

[0045] A number of vertical poles 65 are fixedly connected at equal intervals between the two connecting cross bars 66, and a sleeve 64 is movably sleeved on the outer wall of the vertical pole 65. The outer walls of the vertical pole 1 63 and the sleeve 64 movably sleeved on the outer wall of the vertical pole 2 65 are in contact with one side wall of the light guide plate 3. Multiple groups of sleeves 64 are in contact with the side wall of the light guide plate 3 to make the movement of the body block 2 52 smoother. The outer wall of the sleeve 64 is pasted with flocked fabric, so that no friction is generated on the side wall of the light guide plate 3 during the movement of the body block 2 52.

[0046] Working principle: When using an anti-static miniLED backlight source, first, when it is necessary to install the light guide plate 3 and the mounting frame 1, insert the two ends of the light guide plate 3 into the mounting frame 1 along the notches of the embedded grooves 4 reserved inside the frame body on both sides of the mounting frame 1, push the light guide plate 3 toward the direction of the LED light bar 2 so that the light guide plate 3 and the mounting frame 1 are installed, and then limit the end of the light guide plate 3 away from the LED light bar 2, and move the two plates 58 towards each other. The two plates 58 move towards each other. The spring 2 57 fixedly connected between the two paddle plates 58 generates a force acting in opposite directions. At this time, the spring 2 57 is deformed. In the process of pushing the two paddle plates 58 in opposite directions, the long rods 55 fixedly connected to the ends of the two paddle plates 58 move in opposite directions. The body block 2 52 fixedly connected to the ends of the long rods 55 drives the clamping block 59 fixedly connected to the ends of the body block 2 52 to move. At this time, the spring 1 56 is deformed by the force as the body block 2 52 moves toward the body block 1 51, and then the body block 1 51 and the body block 51 are deformed. The second block 52 moves to the side wall of one end of the light guide plate 3 away from the LED light strip 2, and the two plates 58 are released. The spring second 57 loses the force acting in the opposite direction and starts to reset. At this time, the spring second 57 pushes the two plates 58 and the two long rods 55 fixedly connected to the plates 58 to move apart. Under the action of the restoring force of the spring first 56 and the spring second 57, the movement of the two long rods 55 drives the two groups of body blocks 2 52 and the card blocks 59 fixedly connected to the ends of the body blocks 2 52 toward the reserved space in the frame of the installation frame 1. The first body 51 and the second body 52 move in the embedding groove 4 and the columnar card groove 510 connected to the embedding groove 4, and the card block 59 is finally engaged with the card groove 510. At this time, the body block 1 51 and the body block 2 52 completely limit the end of the light guide plate 3 away from the LED light bar 2 together with the installation frame 1. When the light guide plate 3 needs to be repaired and maintained later, the two plates 58 can be moved towards each other to remove the component used for limiting. In this way, there is no need to use glue to limit the position of the light guide plate 3, and it is also more convenient to disassemble in the future;

[0047] At the same time, in the process of disassembling the limit installation component 5, the dial plate 58 is toggled, and the movement of the long rod 55 drives the body block 52 to move so that the block 59 fixed at the end of the body block 52 can leave the inside of the card slot 510. In the process of moving the body block 52, multiple groups of sleeves 64 contact the side wall of the light guide plate 3 to make the movement of the body block 52 smoother. The outer wall of the sleeve 64 is pasted with flocked fabric, so that the side wall of the light guide plate 3 will not be rubbed during the movement of the body block 52. At the same time, the outer wall of the light guide plate 3 is covered with a transparent anti-static film, which extends the service life of the entire backlight source.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An anti-static mini LED backlight source, comprising a mounting frame (1), wherein an embedding groove (4) is provided in the internal frame of the mounting frame (1), and a light guide plate (3) is embedded and installed in the embedding groove (4), a side wall of the light guide plate (3) abuts against the end face of an LED light bar (2), and the LED light bar (2) is installed in close contact with the inner wall of the mounting frame (1), characterized in that: Also includes: A limit installation assembly (5), wherein a body block (51) is attached to and movably installed on a side wall of one side of the light guide plate (3), a notch (53) is provided inside the body block (51), and a shift plate (58) is movably connected to the inner wall of the notch (53), an end of the shift plate (58) is fixedly connected to a long rod (55), and an end of the long rod (55) is fixedly connected to a body block (52), and an end of the body block (52) is fixedly connected to a clamping block (59), and the clamping block (59) matches a clamping groove (510) inside the interlocking groove (4); An auxiliary movable component (6), wherein an open cavity (61) is provided inside the body block 2 (52), and a slide groove (62) is provided in the top wall and the bottom wall of the cavity (61), and a vertical rod 1 (63) is slidably connected in the slide groove (62), a connecting cross bar (66) is welded to the outer wall of the vertical rod 1 (63), and a connecting vertical rod (67) is fixedly connected to the bottom of the connecting cross bar (66), and a spring 3 (68) is fixedly connected between the connecting vertical rod (67) and the inner wall of the cavity (61).

2. The anti-static miniLED backlight source according to claim 1, characterized in that: The installation frame (1) is in an open arch shape, and open fitting grooves (4) are provided inside the frame body at two symmetrical locations on both sides of the installation frame (1), and the outer walls of the two ends of the light guide plate (3) close to the fitting grooves (4) are in contact with and slidably connected to the inner walls of the fitting grooves (4).

3. The anti-static miniLED backlight source according to claim 1, characterized in that: The body block 1 (51) is located at the center of a side wall of the light guide plate (3) that is not in contact with the LED light strip (2); The body block 1 (51) is provided with a square notch (53) which is through-through from top to bottom. The two side walls of the shift plate (58) are in contact with and slidably connected to the inner wall of the notch (53). The top and bottom of the shift plate (58) are flush with the top and bottom of the body block 1 (51).

4. The anti-static miniLED backlight source according to claim 3, characterized in that: The number of the shifting plates (58) is two, and the two shifting plates (58) are symmetrically arranged inside the notch (53), and the two ends of the second spring (57) are respectively fixedly connected to the two shifting plates (58); There is a gap slightly larger than the thickness of a thumb between the two paddle plates (58) and the left and right end walls inside the notch (53); Long rods (55) are fixedly connected to the surfaces of the left and right end walls of the two shifting plates (58) close to the inside of the notch (53), and the long rods (55) pass through two symmetrical columnar grooves (54) reserved inside the body block (51), and the outer walls of the long rods (55) are in contact with and slidably connected to the inner walls of the columnar grooves (54).

5. The anti-static miniLED backlight source according to claim 4, characterized in that: The outer ring of the long rod (55) is movably sleeved with a spring 1 (56), and the two ends of the spring 1 (56) are respectively fixedly connected to the body block 1 (51) and the body block 2 (52), and a gap is left between the side wall of the spring 1 (56) and the side wall of the light guide plate (3).

6. The anti-static miniLED backlight source according to claim 1, characterized in that: The number of the vertical rods (63) is two, and the two vertical rods (63) are respectively close to the two end walls of the cavity (61) and are symmetrically arranged. The outer wall of the vertical pole (63) is movably sleeved with a sleeve (64), and two vertically symmetrical connecting cross bars (66) are fixedly connected between the upper end and the lower end outer walls of the two vertical poles (63), and two symmetrical connecting vertical bars (67) are fixedly connected between the two connecting cross bars (66).

7. The anti-static miniLED backlight source according to claim 6, characterized in that: The outer walls of the upper and lower ends of the vertical rod (63) are connected to the top wall and the bottom wall of the cavity (61), and are provided with the inner wall of the sliding groove (62) to fit and slide in connection.

8. The anti-static miniLED backlight source according to claim 6, characterized in that: A plurality of second vertical rods (65) are fixedly connected at equal intervals between the two connecting cross bars (66), and the outer wall of the second vertical rod (65) is movably sleeved with a sleeve (64), and the outer wall of the first vertical rod (63) and the sleeve (64) movably sleeved with the outer wall of the second vertical rod (65) are both in contact with a side wall of the light guide plate (3).

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