CN218941580U

CN218941580U - Backlight module flexible circuit board

Info

Publication number: CN218941580U
Application number: CN202222967628.1U
Authority: CN
Inventors: 叶龙
Original assignee: Shenzhen Leadfly Technology Co ltd
Current assignee: Shenzhen Leadfly Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-04-28
Anticipated expiration: 2032-11-08

Abstract

The utility model relates to the technical field of flexible circuit boards, in particular to a backlight module flexible circuit board which comprises a connecting disc, wherein a built-in groove is formed in the connecting disc, a circuit board body is inserted into the built-in groove, a through hole is formed in the circuit board body, and a central hole is formed in the connecting disc. According to the utility model, four circuit boards can be connected in a concentrated manner through the connecting plate, and the four circuit boards can be processed and positioned by penetrating through the central hole through the connecting plate and matching with the screws, so that the inserting blocks can be telescopic through compressing the springs to reset, and the circuit boards and the connecting plate can be assembled and disassembled conveniently.

Description

Backlight module flexible circuit board

Technical Field

The utility model relates to the technical field of flexible circuit boards, in particular to a flexible circuit board of a backlight module.

Background

The flexible circuit board is called FPC in industry, and is made of flexible insulating base material (mainly polyimide or polyester film).

Which is a printed circuit made from a flexible insulating substrate. The circuit provides excellent electrical performance, meets the design requirements of smaller and higher density mounting, and also helps reduce assembly processes and enhance reliability.

For example, according to the flexible circuit board of the backlight module of the authorized bulletin number CN217283542U, the circuit board comprises a circuit board body, one side of the circuit board body is adhered with a heat conducting adhesive layer, a plurality of patch LED lamps are installed on the other side of the circuit board body along the circumferential direction, a frame body is sleeved on the outer side of the circuit board body along the circumferential direction, clamping grooves are formed in the tops of two opposite sides of the frame body, an adjusting plate is clamped inside the clamping grooves, a positioning mechanism is arranged between the adjusting plate and the frame body and used for adjusting the position of the adjusting plate, a pressing plate is installed on the top of the adjusting plate, the positioning mechanism comprises mounting grooves, positioning bolts, reinforcing blocks and positioning holes, the mounting grooves are formed in the four sides of the frame body, the positions of the mounting grooves correspond to the positions of the clamping grooves, the positioning bolts are spliced on the two sides of the mounting grooves, the reinforcing blocks are installed on one side of the adjusting plate, the positioning holes are uniformly formed in the length direction of the two sides of the reinforcing blocks, the positions of the positioning bolts correspond to the positions of the positioning holes.

The backlight module is one of key components of the liquid crystal display panel, has the functions of supplying enough light sources with uniform brightness and distribution, so that the backlight module can normally display images, and is matched with a circuit board to realize stable light emission of the light sources when in use, but a plurality of flexible circuit boards can be arranged in a display screen in a bonding mode of adhesive tapes, and if the display screen has high power and high heat, the adhesive tapes are melted, and the flexible circuit boards are easy to be arranged and fall off.

Disclosure of Invention

The utility model aims to provide a flexible circuit board of a backlight module, which is used for solving the problem of auxiliary fixation of a plurality of circuit boards.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the flexible circuit board of the backlight module comprises a connecting plate, wherein a built-in groove is formed in the connecting plate, a circuit board body is inserted into the built-in groove, a through hole is formed in the circuit board body, and a center hole is formed in the connecting plate.

Preferably, the connecting plate is provided with a through hole, the through hole is communicated with the through hole correspondingly, and the specifications of the two holes are the same.

Preferably, a positioning ring is fixed on the inner wall of the through hole, a connecting rod is sleeved in the positioning ring in a sliding manner, and the positioning ring has an anti-falling effect and can avoid the slipping of the connecting rod.

Preferably, the connecting rod is fixedly provided with an insert block, the insert block is in sliding insertion butt joint with the through hole, and the insert block is of a mitsubishi structure.

Preferably, the lower end of the connecting rod is fixed with a pull head, the pull head is spherical, and fingers pinch the pull head to pull the insert.

Preferably, a spring is wound on the connecting rod, and two ends of the spring are fixedly connected with the insert block and the positioning ring respectively, so that the telescopic reset stability of the insert block is ensured.

Preferably, the number of the built-in grooves is four, and the built-in grooves are symmetrically distributed in pairs, so that the circuit boards at four positions can be conveniently and uniformly distributed.

Preferably, the connecting plate is made of polyethylene material, the thickness is not more than 1 cm, and the influence on the internal installation of the whole display screen due to overlarge thickness is avoided.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, four circuit boards can be connected in a concentrated manner through the connecting plate, and the four circuit boards can be installed in a machining and positioning manner by matching with screws penetrating through the central holes.

2. According to the utility model, the insertion block is telescopic through the compression of the spring to reset, so that the circuit board and the connection disc are convenient to assemble and disassemble.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic side view of a splice tray of the present utility model;

fig. 3 is an enlarged schematic view of the utility model at a.

In the figure: 1. a junction plate; 11. a built-in groove; 12. a circuit board body; 13. a via hole; 14. a central bore; 2. a through hole; 21. a positioning ring; 22. a connecting rod; 23. a pull head; 24. a spring; 25. and (5) inserting blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example I

Referring to fig. 1, a flexible circuit board of a backlight module includes a connection plate 1, a built-in slot 11 is provided on the connection plate 1, a circuit board body 12 is inserted into the built-in slot 11, a via hole 13 is provided on the circuit board body 12, and a central hole 14 is provided on the connection plate 1.

Referring to fig. 1 and 2, the number of the built-in slots 11 is four, and the slots are symmetrically distributed in pairs, so that the circuit boards at four positions can be uniformly distributed.

Referring to fig. 1 and 2, the adaptor plate 1 is made of polyethylene material, and has a thickness not exceeding 1 cm, so that the influence on the internal installation of the whole display screen due to the excessive thickness is avoided.

When the embodiment is used, the following steps are adopted: the inner wall of the central hole 14 is a thread surface, and can be matched with a screw, so that the adapter plate 1 with the circuit board body 12 is arranged on the back shell of the display screen, and is matched with the backlight source module to realize stable light emission.

Example II

Referring to fig. 1 and 2, this embodiment further describes an embodiment 1 of a flexible circuit board for a backlight module, which includes a connection plate 1, a built-in slot 11 is provided on the connection plate 1, a circuit board body 12 is inserted into the built-in slot 11, a via hole 13 is provided on the circuit board body 12, and a central hole 14 is provided on the connection plate 1.

Referring to fig. 2 and 3, the adaptor plate 1 is provided with a through hole 2, the through hole 2 is communicated with a through hole 13, and the two holes have the same specification.

Referring to fig. 2 and 3, a positioning ring 21 is fixed on the inner wall of the through hole 2, and a connecting rod 22 is slidably sleeved in the positioning ring 21, so that the sliding prevention effect is achieved, and the sliding of the connecting rod 22 can be avoided.

Referring to fig. 2 and 3, an insert 25 is fixed on the connecting rod 22, and the insert 25 is slidably inserted into and abutted with the via hole 13, and the insert 25 has a mitsubishi structure.

Referring to fig. 2 and 3, a pull head 23 is fixed at the lower end of a connecting rod 22, the pull head 23 is spherical, and a finger can pinch the pull head 23 to pull an insert block 25.

Referring to fig. 2 and 3, a spring 24 is wound on the connecting rod 22, and two ends of the spring 24 are fixedly connected with the insert block 25 and the positioning ring 21 respectively, so as to ensure the stability of the telescopic reset of the insert block 25.

When the embodiment is used, the following steps are adopted: when the circuit board body 12 is required to be installed with the adapter plate 1, the pull head 23 is pinched first to pull, the spring 24 is compressed, the insert block 25 enters the through hole 2, then the circuit board body 12 is inserted into the built-in groove 11, when the position of the through hole 13 corresponds to the position of the through hole 2, the pull head 23 is loosened, and the insert block 25 is inserted into the through hole 13 through the reset effect of the spring 24, so that the positioning of the circuit board body 12 and the adapter plate 1 is completed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a backlight module flexible line way board, includes joint dish (1), its characterized in that: the connecting disc (1) is provided with a built-in groove (11), a circuit board body (12) is inserted into the built-in groove (11), a through hole (13) is formed in the circuit board body (12), and a center hole (14) is formed in the connecting disc (1).

2. The backlight module flexible wiring board according to claim 1, wherein: the connecting disc (1) is provided with a through hole (2), and the through hole (2) is communicated with the through hole (13).

3. The backlight module flexible wiring board according to claim 2, wherein: a positioning ring (21) is fixed on the inner wall of the through hole (2), and a connecting rod (22) is sleeved in the positioning ring (21) in a sliding way.

4. A backlight module flexible wiring board according to claim 3, wherein: an inserting block (25) is fixed on the connecting rod (22), and the inserting block (25) is in sliding insertion butt joint with the through hole (13).

5. The backlight module flexible wiring board according to claim 4, wherein: a pull head (23) is fixed at the lower end of the connecting rod (22), and the pull head (23) is spherical.

6. The backlight module flexible wiring board according to claim 5, wherein: the connecting rod (22) is wound with a spring (24), and two ends of the spring (24) are fixedly connected with the insert block (25) and the positioning ring (21) respectively.

7. The backlight module flexible wiring board according to claim 1, wherein: the number of the built-in grooves (11) is four, and the built-in grooves are symmetrically distributed in pairs.

8. The backlight module flexible wiring board according to claim 1, wherein: the connecting disc (1) is made of polyethylene material, and the thickness of the connecting disc is not more than 1 cm.