Backlight module rapid assembly device

Abstract

The utility model relates to display technology field especially relates to a backlight module quick assembly equipment, including backlight display screen, the one side welding of backlight display screen has circuit board, the four corner places of base upper surface all are equipped with the supporting piece for supporting backlight display screen, the one end of horizontal arm is equipped with the locating frame for lifting circuit board, two corners of circuit board respectively with two corners in locating frame are inlayed, the sleeve of horizontal arm is equipped with slide, the side of slide away from locating frame is equipped with limit disc, and limit disc is connected with horizontal arm fixedly, and connecting piece is installed between slide and base, the utility model has the beneficial effect that: does not need artificial repeated calibration, has solved the pin deviation problem caused by visual angle deviation, hand shaking in manual operation.

Description

Technical Field

[0001] This utility model is a rapid assembly equipment for backlight modules, belonging to the field of display technology. Background Technology

[0002] In the assembly process of a backlight module, the connection between the backlight display and the circuit board is the core link that determines the integrity and stability of the module's functions. The assembly of the circuit board and the backlight display relies on the precise alignment of pins and sockets, followed by soldering to achieve electrical conductivity and structural fixation. As the signal control core of the backlight module, the circuit board has a row of pins pre-set on its edge, each pin precisely corresponding to a row of sockets on the surface of the backlight display. For example, Chinese utility model patent CN201532738U discloses a connection structure between the display and the circuit board. These pins and sockets are all small in size. In manual operation scenarios, the operator must first place the circuit board stably above the backlight display and visually calibrate the positional relationship between each pin and socket. Due to the high density of the pins and sockets and the narrow spacing between adjacent pins, hand tremors or viewing angle deviations can cause the aligned pins to shift. Repeated adjustments to the horizontal position and angle of the circuit board are necessary to ensure that the entire row of pins is synchronously aligned with the entire row of sockets. Throughout the assembly process, manual operation requires sustained high concentration. Precise alignment of minute components is achieved through visual calibration and manual fine-tuning. Each step needs to be repeatedly confirmed to avoid a chain reaction of problems caused by assembly errors. This mode, which relies on human eyesight and meticulous manual operation, consumes a significant amount of time and makes it difficult to guarantee consistency in mass production, becoming a key bottleneck restricting the efficiency of backlight module assembly. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rapid assembly equipment for backlight modules to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid assembly device for backlight modules, comprising:

[0005] Backlit display screen, with a circuit board soldered on one side;

[0006] The base has support brackets installed at the four corners of its upper surface to support the backlight display screen.

[0007] A horizontal arm has a positioning frame installed at one end for supporting the circuit board. The two corners of the circuit board are respectively fitted with the two corners inside the positioning frame. A sliding sleeve is fitted on the horizontal arm. A limiting plate is provided on the side of the sliding sleeve away from the positioning frame. The limiting plate is connected and fixed to the horizontal arm.

[0008] The connector is installed between the sliding sleeve and the base.

[0009] Furthermore, the support includes columns, and columns are installed at the four corners of the upper surface of the base. Fixing holes are opened at the four corners of one side of the backlight display screen. The upper end of the column passes through the fixing hole, and a blocking ring is provided on the lower side of the fixing hole. The blocking ring is sleeved on the column and connected and fixed to the column.

[0010] Furthermore, a conical head is installed at the upper end of the column. The conical head has a structure that is narrower at the top and wider at the bottom. The conical head and the column are integrally formed. The outer diameter of the column is the same as the inner diameter of the fixing hole.

[0011] Furthermore, the cross-section of the horizontal arm is rectangular, the cross-section of the sliding sleeve is rectangular, and a circular groove is formed by a recess near the limiting plate of the horizontal arm. A magnet block that attracts the sliding sleeve is glued into the circular groove.

[0012] Furthermore, the connector includes a column rod, the lower surface of the sliding sleeve is fitted with the column rod, the lower end of the column rod is fitted with a vertical cylinder, the lower end of the vertical cylinder is connected and fixed with a connecting plate, the end of the connecting plate away from the vertical cylinder is connected and fixed with a base, the outer surface of the vertical cylinder has two symmetrically arranged elongated holes, the lower part of the vertical cylinder is provided with a vertically arranged compression spring, the upper end of the compression spring is in contact with the lower end of the column rod, the lower end of the column rod is fitted with a limiting head that penetrates the column rod, and the two ends of the limiting head extend into the two elongated holes respectively.

[0013] Furthermore, a push-pull rod is installed on the lower surface of the cross arm, and the push-pull rod is positioned between the backlight display screen and the base. A gripping part is installed at the end of the push-pull rod away from the cross arm, and the push-pull rod and the gripping part form a "U" shape. A protruding rod is installed at the upper part of the horizontal part of the push-pull rod, and both ends of the protruding rod form an acute angle with the horizontal part of the push-pull rod. A pressure rod that cooperates with the protruding rod is provided on the upper side of the horizontal part of the push-pull rod, and supports are installed at both ends of the pressure rod. The lower end of the support is connected to the base by screws.

[0014] Furthermore, a sleeve is fitted onto the pressure rod, which slides in contact with the pressure rod, and the length of the sleeve is less than the length of the pressure rod.

[0015] Furthermore, a rectangular opening is formed by a recess in the middle of the upper surface of the base, and two positioning holes are provided on the upper surface of the base symmetrically arranged about the rectangular opening.

[0016] Furthermore, two symmetrically arranged support rods are installed on the horizontal part of the positioning frame, and the support rods are in contact with the lower surface of the circuit board.

[0017] Furthermore, multiple pins are installed on the edge of the side of the circuit board facing the backlight display, and a row of sockets that mate with the pins are opened on one side of the backlight display, with the end of the pin away from the circuit board passing through the socket.

[0018] The beneficial effects of this utility model are:

[0019] The four corner posts of the base mate with the mounting holes of the backlight display. The conical head at the top of the post guides the mounting holes to quickly align, preventing the backlight display from shifting. The blocking ring limits the height of the backlight display, ensuring it is in a horizontal assembly position, laying a stable foundation for subsequent pin docking. The positioning frame achieves precise positioning by fitting against the two corners of the circuit board. The support rod provides stable support to the lower surface of the circuit board. The rectangular cross-section design of the horizontal arm and sliding sleeve prevents the horizontal arm from rotating, ensuring that the pins are always aligned with the socket direction when the positioning frame moves the circuit board horizontally. This eliminates the need for repeated manual calibration and solves the problem of pin offset caused by viewing angle deviation and hand tremors during manual operation.

[0020] After the circuit board and backlight display screen are assembled, the structure formed by the gripper and the push-pull rod pushes the horizontal arm to move. The horizontal arm moves along the sliding sleeve. At this time, the protruding rod and the pressure rod squeeze each other. Under the action of the pressure rod, the push-pull rod moves downward. At this time, the horizontal arm drives the positioning frame to move downward, preventing the positioning frame from sliding against the bottom of the circuit board and thus protecting the circuit board. At the same time, the downward moving horizontal arm drives the sliding sleeve to move downward. The sliding sleeve compresses the spring through the column rod, shortening the height of the structure formed by the column rod and the vertical cylinder, thereby cooperating with the sliding of the protruding rod and the pressure rod. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a structural schematic diagram of a rapid assembly equipment for a backlight module according to the present invention;

[0023] Figure 2 This is another perspective view of the rapid assembly equipment for backlight modules according to this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly of the circuit board and the backlight display screen in a rapid assembly equipment for a backlight module according to this utility model;

[0025] Figure 4 This is an assembly diagram of the cross arm, positioning frame, and base in a rapid assembly equipment for a backlight module according to this utility model.

[0026] Figure 5This is an assembly diagram of the positioning frame, push-pull rod, and cross arm in a rapid assembly equipment for a backlight module according to this utility model.

[0027] Figure 6 This is an exploded structural diagram of the vertical cylinder, compression spring, vertical rod, and sliding sleeve in a rapid assembly equipment for a backlight module according to this utility model;

[0028] Figure 7 This is an exploded structural diagram of the sleeve, support and pressure rod in a rapid assembly equipment for a backlight module according to this utility model;

[0029] In the picture:

[0030] 1. Backlit display screen; 11. Circuit board; 12. Mounting holes;

[0031] 2. Base; 21. Rectangular opening; 22. Positioning hole;

[0032] 3. Push-pull rod; 31. Grip part; 32. Pressure rod;

[0033] 4. Column; 41. Limiting ring; 42. Conical head;

[0034] 5. Cross arm; 51. Positioning frame; 52. Limiting plate; 53. Support rod; 54. Magnetic block;

[0035] 6. Sliding sleeve; 61. Column rod; 62. Limiting head; 63. Column cylinder; 64. Connecting plate; 65. Oblong hole; 66. Compression spring;

[0036] 7. Compression rod; 71. Pipe sleeve; 72. Support. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0038] Please see Figures 1-3 This utility model provides a technical solution: a rapid assembly device for a backlight module, including a backlight display screen 1. A circuit board 11 has multiple pins mounted on its edge facing the backlight display screen 1. A row of sockets that mate with the pins is opened on one side of the backlight display screen 1, allowing the pins to pass through the sockets at the ends furthest from the circuit board 11 and be soldered, thus completing the soldering of the circuit board 11 onto one side of the backlight display screen 1. The backlight display screen 1 is a core terminal device based on liquid crystal display technology. Its core feature is that it relies on a backlight module to provide a light source. Since liquid crystal itself does not emit light, the light from the backlight module must penetrate the liquid crystal layer and then be modulated by components such as polarizers and color filters to ultimately present images with varying brightness and color. Its working principle and structure have been fully disclosed in the prior art, and therefore will not be elaborated here.

[0039] See Figures 1-7 By recessing a rectangular opening 21 in the middle of the upper surface of the base 2, the amount of material used in the production of the base 2 can be reduced. Two positioning holes 22 are symmetrically arranged about the rectangular opening 21 on the upper surface of the base 2, allowing bolts to pass through the positioning holes 22 and be installed in the required position, thus restricting the position of the base 2. A column 4 is installed at each of the four corners of the upper surface of the base 2. A fixing hole 12 is provided at each of the four corners of one side of the backlight display screen 1. The upper end of the column 4 passes through the fixing hole 12, and a blocking ring 41 is provided on the lower side of the fixing hole 12. The blocking ring 41 is sleeved on the column 4 and connected and fixed to the column 4. A conical head 42 is installed at the upper end of the column 4. The conical head 42 has a narrow upper and wide lower structure and is integrally formed with the column 4. The outer diameter of the column 4 is the same as the inner diameter of the fixing hole 12. A rectangular cross-section horizontal arm 5 is fitted with a positioning frame 51 at one end for supporting the circuit board 11. The two corners of the circuit board 11 are respectively attached to the two corners inside the positioning frame 51. A rectangular cross-section sliding sleeve 6 is fitted on the horizontal arm 5. A limiting plate 52 is provided on the side of the sliding sleeve 6 away from the positioning frame 51. The limiting plate 52 is connected and fixed to the horizontal arm 5. A circular groove is formed by a recess in the horizontal arm 5 near the limiting plate 52. A magnet 54 that attracts the sliding sleeve 6 is glued into the circular groove. The magnet 54 and the sliding sleeve 6 attract each other to prevent the horizontal arm 5 from moving randomly. Two symmetrically arranged support rods 53 are installed on the horizontal part of the positioning frame 51. The support rods 53 are in contact with the lower surface of the circuit board 11. The support rods 53 can increase the lifting range of the positioning frame 51 and the circuit board 11 and improve the stability of the circuit board 11.

[0040] The four corner posts 4 of the base 2 engage with the mounting holes 12 of the backlight display 1. The conical head 42 at the top of the post 4 guides the mounting holes 12 to align quickly, preventing the backlight display 1 from shifting. The blocking ring 41 limits the height of the backlight display 1, ensuring it is in a horizontal assembly position and laying a stable foundation for subsequent pin docking. The positioning frame 51 achieves precise positioning by fitting against the two corners of the circuit board 11, and the support rod 53 provides stable support to the lower surface of the circuit board 11. The rectangular cross-section design of the horizontal arm 5 and the sliding sleeve 6 prevents the horizontal arm 5 from rotating, ensuring that the pins are always aligned with the socket direction when the positioning frame 51 moves the circuit board 11 horizontally, eliminating the need for repeated manual calibration and solving the pin offset problem caused by viewing angle deviation and hand tremors during manual operation. With the help of the positioning frame 51, the column 4 and other structures, there is no need for manual visual calibration of the pin and socket positions one by one. Simply place the circuit board 11 into the positioning frame 51 and the backlight display 1 onto the column 4 to complete the initial positioning, which greatly reduces the time spent on the initial position adjustment. The entire assembly process does not require repeated confirmation step by step, which improves assembly efficiency and adapts to the needs of mass production.

[0041] See Figures 1-2 , Figures 4-7A column rod 61 is installed on the lower surface of the sliding sleeve 6. A vertical cylinder 63 is sleeved on the lower end of the column rod 61. A connecting plate 64 is fixedly connected to the lower end of the vertical cylinder 63. The end of the connecting plate 64 away from the vertical cylinder 63 is fixedly connected to the base 2. Two symmetrically arranged elongated holes 65 are opened on the outer surface of the vertical cylinder 63. A vertically arranged compression spring 66 is provided in the lower part of the vertical cylinder 63. The upper end of the compression spring 66 is in contact with the lower end of the column rod 61. A limiting head 62 is installed at the lower end of the column rod 61, and the two ends of the limiting head 62 extend into the two elongated holes 65 respectively. A push-pull rod 3 is installed on the lower surface of the horizontal arm 5. The push-pull rod 3 is located between the backlight display screen 1 and the base 2. A gripping part 31 is installed at the end of the push-pull rod 3 away from the horizontal arm 5. The push-pull rod 3 and the gripping part 31 form a "U" shape structure. A protruding rod 32 is installed at the upper part of the horizontal part of the push-pull rod 3. Both ends of the protruding rod 32 form an acute angle with the horizontal part of the push-pull rod 3. A pressure rod 7 that cooperates with the protruding rod 32 is provided on the upper side of the horizontal part of the push-pull rod 3. Both ends of the pressure rod 7 are equipped with supports 72. The lower end of the supports 72 is connected to the base 2 by screws. After the circuit board 11 and the backlight display screen 1 are assembled, the structure formed by the gripping part 31 and the push-pull rod 3 pushes the horizontal arm 5 to move. The horizontal arm 5 moves along the sliding sleeve 6. At this time, the protruding rod 32 and the pressure rod 7 squeeze each other. Under the action of the pressure rod 7, the push-pull rod 3 moves downward. At this time, the horizontal arm 5 drives the positioning frame 51 to move downward, preventing the positioning frame 51 from sliding contacting the bottom of the circuit board 11, thus protecting the circuit board 11. At the same time, the downward moving horizontal arm 5 drives the sliding sleeve 6 to move downward. The sliding sleeve 6 compresses the spring 66 through the column rod 61, shortening the height of the structure formed by the column rod 61 and the vertical cylinder 63, thereby cooperating with the sliding of the protruding rod 32 and the pressure rod 7. The pressure rod 7 is fitted with a sleeve 71 that slides in contact with the pressure rod 7. The length of the sleeve 71 is less than the length of the pressure rod 7. The sleeve 71 is in direct contact with the protruding rod 32. When the protruding rod 32 and the pressure rod 7 have relative displacement, the protruding rod 32 drives the sleeve 71 to rotate around the pressure rod 7, thereby reducing wear.

[0042] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid assembly equipment for backlight modules, characterized in that, include: A backlit display screen (1) has a circuit board (11) soldered on one side; The base (2) has support members installed at the four corners of its upper surface to support the backlight display screen (1); A horizontal arm (5) has a positioning frame (51) installed at one end for supporting a circuit board (11). The two corners of the circuit board (11) are respectively attached to the two corners inside the positioning frame (51). A sliding sleeve (6) is fitted on the horizontal arm (5). A limiting plate (52) is provided on the side of the sliding sleeve (6) away from the positioning frame (51). The limiting plate (52) is connected and fixed to the horizontal arm (5). The connector is installed between the sliding sleeve (6) and the base (2).

2. The rapid assembly equipment for a backlight module according to claim 1, characterized in that: The support includes a column (4). The column (4) is installed at each of the four corners of the upper surface of the base (2). The backlight display screen (1) has a fixing hole (12) at each of the four corners. The upper end of the column (4) passes through the fixing hole (12). A blocking ring (41) is provided on the lower side of the fixing hole (12). The blocking ring (41) is sleeved on the column (4) and connected and fixed to the column (4).

3. The rapid assembly equipment for a backlight module according to claim 2, characterized in that: The upper end of the column (4) is equipped with a conical head (42), which is narrow at the top and wide at the bottom. The conical head (42) and the column (4) are integrally formed. The outer diameter of the column (4) is the same as the inner diameter of the fixing hole (12).

4. The rapid assembly equipment for a backlight module according to claim 1, characterized in that: The cross-section of the horizontal arm (5) is rectangular, the cross-section of the sliding sleeve (6) is rectangular, and a circular groove is formed by the recess of the horizontal arm (5) near the limiting plate (52). A magnet block (54) that is attracted to the sliding sleeve (6) is glued into the circular groove.

5. The rapid assembly equipment for a backlight module according to claim 1, characterized in that: The connector includes a column rod (61), the lower surface of the sliding sleeve (6) is fitted with the column rod (61), the lower end of the column rod (61) is fitted with a vertical cylinder (63), the lower end of the vertical cylinder (63) is connected and fixed with a connecting plate (64), the end of the connecting plate (64) away from the vertical cylinder (63) is connected and fixed with the base (2), the outer surface of the vertical cylinder (63) has two symmetrically arranged elongated holes (65), the lower part of the vertical cylinder (63) is provided with a vertically arranged compression spring (66), the upper end of the compression spring (66) is in contact with the lower end of the column rod (61), the lower end of the column rod (61) is fitted with a limiting head (62) that penetrates the column rod (61), the two ends of the limiting head (62) extend into the two elongated holes (65) respectively.

6. The rapid assembly equipment for a backlight module according to claim 5, characterized in that: A push-pull rod (3) is installed on the lower surface of the cross arm (5). The push-pull rod (3) is located between the backlight display screen (1) and the base (2). A gripping part (31) is installed at the end of the push-pull rod (3) away from the cross arm (5). The push-pull rod (3) and the gripping part (31) form a "U" shaped structure. A protruding rod (32) is installed at the upper part of the horizontal part of the push-pull rod (3). Both ends of the protruding rod (32) are at an acute angle to the horizontal part of the push-pull rod (3). A pressure rod (7) is provided on the upper side of the horizontal part of the push-pull rod (3) to cooperate with the protruding rod (32). Both ends of the pressure rod (7) are equipped with supports (72). The lower end of the supports (72) is connected to the base (2) by screws.

7. The rapid assembly equipment for a backlight module according to claim 6, characterized in that: The pressure rod (7) is fitted with a sleeve (71) that slides in contact with the pressure rod (7), and the length of the sleeve (71) is less than the length of the pressure rod (7).

8. The rapid assembly equipment for a backlight module according to claim 1, characterized in that: The upper surface of the base (2) is recessed in the middle to form a rectangular opening (21), and two positioning holes (22) are provided on the upper surface of the base (2) symmetrically arranged about the rectangular opening (21).

9. The rapid assembly equipment for a backlight module according to claim 1, characterized in that: The horizontal part of the positioning frame (51) is equipped with two symmetrically arranged support rods (53), which are in contact with the lower surface of the circuit board (11).

10. A rapid assembly equipment for a backlight module according to claim 1, characterized in that: The circuit board (11) has multiple pins mounted on the edge of the side facing the backlight display screen (1). The backlight display screen (1) has a row of sockets that mate with the pins on one side. The end of the pin away from the circuit board (11) passes through the socket.

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