FPC (Flexible Printed Circuit) line card for flexible advertising screen

Abstract

The utility model provides an FPC line card used for a flexible advertisement screen, comprising a line card body, the line card body is provided with an occlusion seam used for clamping an FPC, the occlusion seam penetrates through the line card body upwards to form a glue dripping hole used for glue dripping, and the front and back of the line card body are respectively provided with a welding spot via hole and a cable hole. And the welding spot via hole and the cable hole are communicated with the occlusion seam. According to the utility model, the cable can be effectively fixed on the FPC through the cable clamp, extra stress cannot be generated to a welding spot even under external pulling, the cable can bear large pulling force for many times, and the connection stability is improved; the design of the diversion trenches effectively enables the two surfaces of the FPC to be fixedly connected with the line card body, and guarantees the safety and reliability of welding spots.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC line cards of flexible display screens, in particular to an FPC line card used for flexible advertising screens. Background Art

[0002] In daily life, wire clips are widely used in the field of electronic products, mainly at the outlet of plastic shells, in order to prevent long-term pulling, which may cause the solder wires to fall off or break on the PCB board. However, due to the particularity of LED flexible advertising screens, the surface is made of glue dripping technology, which is ultra-thin, without other plastic parts for clamping, and only FPC is welded with wires. The commonly used method is to drip hot melt glue or other soft glue onto the solder wires for protection, but this does not look good and is easy to fall off, and does not provide good protection. To this end, an FPC wire clip for flexible advertising screens is proposed to solve the above problems. Utility Model Content

[0003] In view of this, the utility model provides an FPC line card for a flexible advertising screen, which can effectively fix cables on the FPC and prevent solder joints from being damaged by external forces.

[0004] The utility model provides an FPC line card for a flexible advertising screen, specifically comprising a line card body, the line card body is provided with a bite seam for clamping an FPC, a glue dripping hole for glue dripping is formed by penetrating the line card body upward from the bite seam, and a solder point via hole and a cable hole are respectively provided at the front and rear of the line card body. The solder point via hole is used to avoid the solder point so that the line card body is inserted into the FPC, and the cable hole is used for the cable to pass through. The solder point via hole and the cable hole are in communication with the bite seam.

[0005] Furthermore, a cavity is formed between the bite seam and the glue dripping hole, which reserves space for the dripped glue, thereby ensuring that the glue can bond the FPC, the cable, and the line card body to each other.

[0006] Furthermore, the line card body is square, and the thickness below the bite seam is smaller than the thickness above the bite seam.

[0007] More preferably, a guide groove is provided on one side of the cavity close to the cable hole, and the guide groove guides the glue in the cavity to the bottom of the FPC, so that both sides of the FPC are tightly connected to the line card body.

[0008] Compared with the prior art, the utility model can effectively fix the cable on the FPC through the line card, and will not generate additional stress on the solder joint even under external pulling. It can withstand multiple and large force pulling, and improves the stability of the connection. The design of the guide groove effectively fixes the two sides of the FPC to the line card body, ensuring the safety and reliability of the solder joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 An overall schematic diagram provided for an embodiment of the utility model;

[0011] Figure 2 Another overall schematic diagram is provided for an embodiment of the utility model;

[0012] Figure 3 A schematic diagram of the use of the embodiment of the utility model;

[0013] Figure 4 An explosion diagram provided for an embodiment of the utility model;

[0014] Figure 5 , 6 A cross-sectional schematic diagram is provided for an embodiment of the utility model.

[0015] Among them, the reference numerals in the figure are:

[0016] 1. Line card body, 11. Glue dripping hole; 12. Solder point via hole; 13. Seam; 131. Cut-off part; 14. Cable hole; 15. Cavity; 151. Guide groove; 2. Cable; 3. FPC; 31. Solder point.

[0017] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein are positional relationships with reference to the accompanying drawings.

[0020] In order to make the technical solutions and advantages of the present invention more clear, the implementation modes of the present invention will be described in further detail below with reference to the accompanying drawings.

[0021] See also Figure 1-6 As shown, the utility model provides an FPC line card for a flexible advertising screen, specifically comprising a line card body 1, wherein the line card body 1 is provided with a bite seam 13 for clamping the FPC 3, and a glue dripping hole 11 for glue dripping is formed from the bite seam 13 upwardly through the line card body 1, and the line card body 1 is provided with a solder point via hole 12 and a cable hole 14 at the front and rear. The solder point via hole 12 is used to avoid the solder point 31, so that the line card body 1 is inserted into the FPC 3, and the cable hole 14 is for the cable 2 to pass through. The solder point via hole 12 and the cable hole 14 are in communication with the bite seam 13. A cavity 15 is formed between the bite seam 13 and the glue dripping hole 11, which reserves space for the dripped glue to ensure that the glue bonds the FPC 3, the cable 2, and the line card body 1 to each other.

[0022] like Figure 5 As shown, in this embodiment, the line card body 1 is square, and the thickness below the bite seam 13 is smaller than the thickness above the bite seam 13 .

[0023] like Figure 5 , 6 As shown, a guide groove 151 is further provided on one side of the cavity 15 close to the cable hole 14 , and the guide groove 151 guides the glue in the cavity 15 to the bottom of the FPC, so that both sides of the FPC 3 are tightly connected to the line card body 1 .

[0024] In order to have a more thorough and comprehensive understanding of the disclosed content of the utility model, the principle thereof is further explained below in combination with the usage method.

[0025] In actual use, Figure 3-6 As shown, after the cable 2 is welded on the FPC 3, the cable 2 is passed through the line card body 1, and the line card body 1 is clamped on the FPC 3 until the FPC 3 abuts against the cut-off portion 131 of the bite seam 13, as shown in FIG. Figure 3 , 6As shown, glue is then poured in from the glue dripping hole 11. At this time, the glue will cover the cable 2, the solder joint 31, and the upper surface of the FPC3. When the glue flows to the rear of the cavity 15, the glue flows into the lower surface of the FPC3 along the guide groove 151, so that both sides of the FPC3 are fixedly connected to the line card body 1 through the glue. When the glue is tightened, the glue forms an insulating layer at the solder joint 31 to protect the solder joint and firmly fix the cable 2, the line card body 1, and the FPC3, so that the whole can withstand a large tensile force.

[0026] After considering the specification and practicing the utility model, those skilled in the art will easily think of other embodiments of the utility model. This application is intended to cover any variation, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or customary technical means in the art that are not disclosed in the utility model. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the following claims.

[0027] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An FPC line card for a flexible advertising screen, characterized in that: The invention comprises a line card body (1), wherein the line card body (1) is provided with a bite seam (13) for clamping an FPC (3), and a glue dripping hole (11) for glue dripping is formed by penetrating upward from the bite seam (13) through the line card body (1), and the line card body (1) is provided with a solder point via hole (12) and a cable hole (14) at the front and rear, respectively, and the solder point via hole (12) and the cable hole (14) are in communication with the bite seam (13).

2. The FPC line card for a flexible advertising screen according to claim 1, characterized in that: A cavity (15) is formed between the bite seam (13) and the glue dripping hole (11).

3. The FPC line card for a flexible advertising screen according to claim 1, characterized in that: The line card body (1) is square, and the thickness below the bite seam (13) is smaller than the thickness above the bite seam (13).

4. The FPC line card for a flexible advertising screen according to claim 2, characterized in that: A guide groove (151) is also provided on one side of the cavity (15) close to the cable hole (14), and the guide groove (151) guides the glue in the cavity (15) to the bottom of the FPC.

Images