FPC structure

Abstract

The embodiment of the utility model belongs to the technical field of FPC. The utility model also relates to an FPC structure, which comprises an FPC main body and a plurality of bonding pad main bodies arranged on the FPC main body, each bonding pad main body is at least provided with two exhaust through holes, one end of each bonding pad main body is also provided with a semicircular exhaust port, and the exhaust through holes are matched with the semicircular exhaust ports to realize exhaust when the bonding pad main bodies are welded. The at least two exhaust through holes are formed in the bonding pad body, so that the exhaust effect during welding can be effectively enhanced by increasing the number of the exhaust channels, molten solder paste can flow more smoothly, the pseudo soldering phenomenon is effectively reduced, the welding quality is improved, full tin penetration at the welding position is ensured, and the welding quality is improved. And the welding stability and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC, and more specifically, to an FPC structure. Background Art

[0002] In the prior art, the interface of a conventional PMOLED is usually assembled to a customer host by welding. During the welding process, in order to ensure the smooth progress of welding, the welding position usually uses a vent hole and a semicircular hole as an exhaust channel during welding to remove the gas generated by the molten solder paste during welding;

[0003] However, in the actual mass production process, due to poor exhaust or exhaust failure at the welding point, cold welding often occurs, resulting in unstable welding quality, which in turn affects the reliability and service life of the product. This poor cold welding not only increases the defective rate of the product, but also increases the subsequent maintenance and rework costs, and reduces production efficiency. Therefore, we have made improvements to this and proposed an FPC structure.

[0004] For example, a Chinese patent (publication number CN217116502U) discloses an FPC, a display module and an electronic device, and its specification discloses: The FPC provided by the embodiment of the utility model includes: a solder pad, an edge of the solder pad is provided with an opening; a plurality of gold fingers, and the plurality of gold fingers are arranged at the opening; each gold finger is arranged longitudinally on the solder pad; each gold finger extends longitudinally to the edge of the opening; a covering film, the covering film covers the non-opening area of ​​the solder pad, and the opening is surrounded by the covering film on three sides. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is that the welding position often uses an exhaust hole and a semicircular hole as an exhaust channel during welding, the exhaust at the welding point is not smooth or the exhaust fails, and the phenomenon of cold welding often occurs, resulting in unstable welding quality.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An FPC structure comprises: an FPC body and a plurality of pad bodies arranged on the FPC body, each of the pad bodies is provided with at least two exhaust through holes, and a semicircular exhaust port is also provided at one end of the pad body, the exhaust through holes and the semicircular exhaust port cooperate to realize exhaust during welding of the pad body.

[0008] As an improved manner of the utility model, a first exhaust groove is provided on each of the pad bodies, and the first exhaust groove is connected between the exhaust through hole and the semicircular exhaust port.

[0009] As an improved manner of the utility model, a plurality of the pad bodies are provided with second exhaust grooves, and the plurality of the second exhaust grooves are interconnected.

[0010] As an improved manner of the present invention, the second exhaust groove and the first exhaust groove are perpendicular to each other, and the second exhaust groove is connected to the first exhaust groove.

[0011] As an improved manner of the present invention, a reinforcement mechanism is further provided on the FPC body, and the reinforcement mechanism is used for reinforcing the FPC body after welding.

[0012] As an improved manner of the utility model, the reinforcing mechanism includes a bonding portion arranged on the FPC body, and the bonding portion is used to bond and fix the FPC body after the FPC body is welded.

[0013] As an improved manner of the utility model, the reinforcing mechanism further comprises an isolating portion, and the isolating portion is adhered to a side of the adhesive portion away from the FPC body.

[0014] As an improved manner of the utility model, the bonding portion is an insulating double-sided adhesive tape, and the insulating double-sided adhesive tape is bonded to the FPC body.

[0015] As an improved manner of the utility model, the isolation part is isolation paper, which is bonded to the side of the insulating double-sided tape away from the FPC body, and the outer dimensions of the isolation paper are larger than the outer dimensions of the insulating double-sided tape.

[0016] As an improved manner of the utility model, one end of the isolation paper extends out from one side of the FPC body.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem that in the prior art, the welding position mostly uses an exhaust hole and a semicircular hole as the exhaust channel during welding, the exhaust at the welding point is not smooth or the exhaust fails, cold solder joints often occur, and the welding quality is unstable, the present application arranges at least two exhaust holes on the pad body, so as to increase the number of exhaust channels, which can effectively enhance the exhaust effect during welding, enable the molten solder paste to flow more smoothly, effectively reduce the occurrence of cold solder joints, improve the welding quality, thereby ensuring that the solder penetration is full, and improve the stability and reliability of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the FPC provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the first exhaust slot of the FPC structure provided in this application;

[0021] Figure 3 A schematic diagram of the structure of the second exhaust slot of the FPC structure provided in this application;

[0022] Figure 4 This is a schematic diagram of the structure of the reinforcement mechanism of the FPC structure provided in this application.

[0023] Indicated in the figure:

[0024] 1. FPC body; 101. pad body; 102. exhaust through hole; 103. semicircular exhaust port; 2. first exhaust groove; 3. second exhaust groove; 5. reinforcement mechanism; 501. insulating double-sided adhesive tape; 502. isolation paper. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] As mentioned in the background technology, the welding position usually adopts an exhaust hole and a semicircular hole as the exhaust channel during welding, so as to remove the gas generated by the molten solder paste during welding; however, in the actual mass production process, due to the poor exhaust or exhaust failure of the welding point, cold solder joints often occur, resulting in unstable welding quality, which in turn affects the reliability and service life of the product. Such poor cold solder joints not only increase the defective rate of the product, but also increase the subsequent maintenance and rework costs, and reduce production efficiency.

[0027] In order to solve this technical problem, the utility model provides an FPC structure.

[0028] Specifically, please refer to Figure 1 , the FPC structure specifically includes:

[0029] An FPC body 1 and a plurality of pad bodies 101 arranged on the FPC body 1, each of the pad bodies 101 is provided with at least two exhaust through holes 102, and a semicircular exhaust port 103 is also provided at one end of the pad body 101, and the exhaust through holes 102 and the semicircular exhaust port 103 cooperate to achieve exhaust when the pad body 101 is welded.

[0030] The FPC structure provided by the utility model can effectively enhance the exhaust effect during welding by arranging at least two exhaust through holes 102 on the pad body 101, thereby increasing the number of exhaust channels, so that the molten solder paste can flow more smoothly, effectively reducing the occurrence of cold solder joints, improving the welding quality, thereby ensuring that the solder penetration at the welding point is full, and improving the stability and reliability of welding.

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] Embodiment 1 of the FPC structure of the utility model

[0035] Please refer to Figure 1 The FPC structure of the utility model includes: an FPC body 1 and a plurality of pad bodies 101 arranged on the FPC body 1, each of the pad bodies 101 is provided with at least two exhaust through holes 102, and a semicircular exhaust port 103 is also provided at one end of the pad body 101, the exhaust through holes 102 and the semicircular exhaust port 103 cooperate to realize the exhaust of the pad body 101 during welding, and at least two exhaust through holes 102 are provided on the pad body 101, thereby increasing the number of exhaust channels, and the exhaust effect during welding can be effectively enhanced, so that the molten solder paste can flow more smoothly, effectively reducing the occurrence of cold soldering, improving the welding quality, thereby ensuring that the tin penetration at the welding point is full, improving the stability and reliability of welding, and reducing the downtime and maintenance costs in the production process by improving the welding quality and production efficiency, thereby reducing the overall production cost.

[0036] Embodiment 2 of the FPC structure of the utility model

[0037] Please refer to Figure 1The FPC structure of the utility model includes: an FPC body 1 and a plurality of pad bodies 101 arranged on the FPC body 1, each of the pad bodies 101 is provided with at least two exhaust through holes 102, and a semicircular exhaust port 103 is also provided at one end of the pad body 101, the exhaust through holes 102 and the semicircular exhaust port 103 cooperate to realize the exhaust of the pad body 101 during welding, and at least two exhaust through holes 102 are provided on the pad body 101, thereby increasing the number of exhaust channels, and the exhaust effect during welding can be effectively enhanced, so that the molten solder paste can flow more smoothly, effectively reducing the occurrence of cold soldering, improving the welding quality, thereby ensuring that the tin penetration at the welding point is full, improving the stability and reliability of welding, and reducing the downtime and maintenance costs in the production process by improving the welding quality and production efficiency, thereby reducing the overall production cost.

[0038] Further, such as Figure 2 As shown, each of the pad bodies 101 is provided with a first exhaust groove 2, and the first exhaust groove 2 is connected between the exhaust through hole 102 and the semicircular exhaust port 103. The setting of the first exhaust groove 2 provides an additional exhaust channel. The first exhaust groove 2 and the exhaust through hole 102 work together to more effectively remove the gas generated during the welding process, thereby significantly reducing welding defects caused by gas retention. The enhanced exhaust effect can ensure that the molten solder paste flows more smoothly during welding, forming fuller and more uniform solder joints; this helps to reduce quality problems such as cold solder joints and cold solder joints, and improve the overall quality of welding. Due to the improvement of welding quality, defective products and rework are reduced, thereby improving production efficiency and the stability of the production line.

[0039] Embodiment 3 of the FPC structure of the utility model

[0040] Please refer to Figure 1 The FPC structure of the utility model includes: an FPC body 1 and a plurality of pad bodies 101 arranged on the FPC body 1, each of the pad bodies 101 is provided with at least two exhaust through holes 102, and a semicircular exhaust port 103 is also provided at one end of the pad body 101, the exhaust through holes 102 and the semicircular exhaust port 103 cooperate to realize the exhaust of the pad body 101 during welding, and at least two exhaust through holes 102 are provided on the pad body 101, thereby increasing the number of exhaust channels, and the exhaust effect during welding can be effectively enhanced, so that the molten solder paste can flow more smoothly, effectively reducing the occurrence of cold soldering, improving the welding quality, thereby ensuring that the tin penetration at the welding point is full, improving the stability and reliability of welding, and reducing the downtime and maintenance costs in the production process by improving the welding quality and production efficiency, thereby reducing the overall production cost.

[0041] Further, such as Figure 2As shown, each of the pad bodies 101 is provided with a first exhaust groove 2, and the first exhaust groove 2 is connected between the exhaust through hole 102 and the semicircular exhaust port 103. The setting of the first exhaust groove 2 provides an additional exhaust channel. The first exhaust groove 2 and the exhaust through hole 102 work together to more effectively remove the gas generated during the welding process, thereby significantly reducing welding defects caused by gas retention. The enhanced exhaust effect can ensure that the molten solder paste flows more smoothly during welding, forming fuller and more uniform solder joints; this helps to reduce quality problems such as cold solder joints and cold solder joints, and improve the overall quality of welding. Due to the improvement of welding quality, defective products and rework are reduced, thereby improving production efficiency and the stability of the production line.

[0042] Further, such as Figure 3 As shown, a plurality of the pad bodies 101 are provided with second exhaust grooves 3 , and the plurality of the second exhaust grooves 3 are interconnected. The provision of the second exhaust grooves 3 can further enhance the exhaust effect.

[0043] Further, such as Figure 3 As shown, the second exhaust groove 3 and the first exhaust groove 2 are perpendicular to each other, and the second exhaust groove 3 is connected to the first exhaust groove 2;

[0044] The second exhaust groove 3 and the first exhaust groove 2 cooperate with each other to form a mesh structure, which provides more escape paths for the gas. This structure can more effectively remove the gas generated during the welding process and significantly reduce welding defects caused by gas retention; the exhaust channel of the mesh structure formed by the second exhaust groove 3 and the first exhaust groove 2 ensures that the molten solder paste can flow evenly during welding to form fuller and more uniform solder joints, which helps to improve the overall quality of welding and reduce quality problems such as false solder joints and cold solder joints; by improving the welding quality, reducing defective products and rework, thereby improving production efficiency and the stability of the production line; at the same time, it also helps to speed up the welding speed and further improve production efficiency.

[0045] Embodiment 4 of the FPC structure of the utility model

[0046] Please refer to Figure 1The FPC structure of the utility model includes: an FPC body 1 and a plurality of pad bodies 101 arranged on the FPC body 1, each of the pad bodies 101 is provided with at least two exhaust through holes 102, and a semicircular exhaust port 103 is also provided at one end of the pad body 101, the exhaust through holes 102 and the semicircular exhaust port 103 cooperate to realize the exhaust of the pad body 101 during welding, and at least two exhaust through holes 102 are provided on the pad body 101, thereby increasing the number of exhaust channels, and the exhaust effect during welding can be effectively enhanced, so that the molten solder paste can flow more smoothly, effectively reducing the occurrence of cold soldering, improving the welding quality, thereby ensuring that the tin penetration at the welding point is full, improving the stability and reliability of welding, and reducing the downtime and maintenance costs in the production process by improving the welding quality and production efficiency, thereby reducing the overall production cost.

[0047] Further, such as Figure 2 As shown, each of the pad bodies 101 is provided with a first exhaust groove 2, and the first exhaust groove 2 is connected between the exhaust through hole 102 and the semicircular exhaust port 103. The setting of the first exhaust groove 2 provides an additional exhaust channel. The first exhaust groove 2 and the exhaust through hole 102 work together to more effectively remove the gas generated during the welding process, thereby significantly reducing welding defects caused by gas retention. The enhanced exhaust effect can ensure that the molten solder paste flows more smoothly during welding, forming fuller and more uniform solder joints; this helps to reduce quality problems such as cold solder joints and cold solder joints, and improve the overall quality of welding. Due to the improvement of welding quality, defective products and rework are reduced, thereby improving production efficiency and the stability of the production line.

[0048] Further, such as Figure 3 As shown, a plurality of the pad bodies 101 are provided with second exhaust grooves 3 , and the plurality of the second exhaust grooves 3 are interconnected. The provision of the second exhaust grooves 3 can further enhance the exhaust effect.

[0049] Further, such as Figure 3 As shown, the second exhaust groove 3 and the first exhaust groove 2 are perpendicular to each other, and the second exhaust groove 3 is connected to the first exhaust groove 2;

[0050] The second exhaust groove 3 and the first exhaust groove 2 cooperate with each other to form a mesh structure, which provides more escape paths for the gas. This structure can more effectively remove the gas generated during the welding process and significantly reduce welding defects caused by gas retention; the exhaust channel of the mesh structure formed by the second exhaust groove 3 and the first exhaust groove 2 ensures that the molten solder paste can flow evenly during welding to form fuller and more uniform solder joints, which helps to improve the overall quality of welding and reduce quality problems such as false solder joints and cold solder joints; by improving the welding quality, reducing defective products and rework, thereby improving production efficiency and the stability of the production line; at the same time, it also helps to speed up the welding speed and further improve production efficiency.

[0051] Further, such as Figure 4 As shown, the FPC body 1 is further provided with a reinforcing mechanism 5, which is used to reinforce the FPC body 1 after welding, and can reduce the situation where the FPC body 1 is pulled by external forces and the welding position of the pad body 101 becomes loose.

[0052] Furthermore, the reinforcement mechanism 5 includes an adhesive portion arranged on the FPC body 1, and the adhesive portion is used to adhesively fix the FPC body 1 after the FPC body 1 is welded. Through the bonding action of the adhesive portion, the FPC body 1 can be firmly fixed at a specified position, reducing movement or displacement caused by vibration, impact or other external factors, thereby improving the stability and reliability of the welding point.

[0053] Furthermore, the reinforcing mechanism 5 also includes an isolating portion, which is pasted on a side of the adhesive portion away from the FPC body 1 to reduce the situation where the adhesive portion is contaminated with dust before use, resulting in a decrease in its viscosity.

[0054] Further, such as Figure 4 As shown, the bonding portion is an insulating double-sided tape 501, and the insulating double-sided tape 501 is bonded to the FPC body 1. Through the bonding effect of the insulating double-sided tape 501 on the FPC body 1, the FPC body 1 can be firmly fixed at a specified position, reducing movement or displacement caused by vibration, impact or other external factors, thereby improving the stability and reliability of the welding point.

[0055] Further, such as Figure 4 As shown, the isolation part is isolation paper 502, and the isolation paper 502 is bonded to the side of the insulating double-sided tape 501 away from the FPC body 1, and the outer dimensions of the isolation paper 502 are larger than the outer dimensions of the insulating double-sided tape 501; after welding is completed, the isolation paper 502 is pulled to separate the isolation paper 502 from the insulating double-sided tape 501, and then the insulating double-sided tape 501 is pasted to the corresponding area to fix the FPC body 1;

[0056] The isolation paper 502 is made of release paper, which mainly serves to isolate sticky objects. This kind of paper generally needs to be peeled off and discarded when used. It is widely used, mainly as a carrier for tapes or adhesive products. Release paper can be classified into plastic release paper and plastic-free release paper, and can also be classified into silicone release paper and non-silicone release paper according to the release agent.

[0057] Further, such as Figure 4 As shown, one end of the isolation paper 502 extends out from one side of the FPC body 1 , and such a configuration makes it convenient to pull the isolation paper 502 during use to separate the isolation paper 502 from the insulating double-sided adhesive tape 501 .

[0058] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An FPC structure, characterized in that: include: An FPC body (1) and a plurality of solder pad bodies (101) arranged on the FPC body (1), each of the solder pad bodies (101) being provided with at least two exhaust through holes (102), and a semicircular exhaust port (103) being provided at one end of the solder pad body (101), the exhaust through holes (102) and the semicircular exhaust port (103) cooperating to achieve exhaust of the solder pad body (101) during welding.

2. The FPC structure according to claim 1, characterized in that: Each of the pad bodies (101) is provided with a first exhaust groove (2), and the first exhaust groove (2) is connected between the exhaust through hole (102) and the semicircular exhaust port (103).

3. The FPC structure according to claim 2, characterized in that: A plurality of the pad bodies (101) are each provided with a second exhaust groove (3), and the plurality of the second exhaust grooves (3) are interconnected.

4. The FPC structure according to claim 3, characterized in that: The second exhaust groove (3) and the first exhaust groove (2) are perpendicular to each other, and the second exhaust groove (3) is connected to the first exhaust groove (2).

5. The FPC structure according to claim 4, characterized in that: The FPC body (1) is also provided with a reinforcement mechanism (5), and the reinforcement mechanism (5) is used for reinforcing the FPC body (1) after welding.

6. The FPC structure according to claim 5, characterized in that: The reinforcing mechanism (5) comprises a bonding portion arranged on the FPC body (1), the bonding portion being used to bond and fix the FPC body (1) after the FPC body (1) is welded.

7. The FPC structure according to claim 6, characterized in that: The reinforcing mechanism (5) further comprises an isolating portion, which is adhered to a side of the adhesive portion away from the FPC body (1).

8. The FPC structure according to claim 7, characterized in that: The bonding portion is an insulating double-sided adhesive tape (501), and the insulating double-sided adhesive tape (501) is bonded to the FPC body (1).

9. The FPC structure according to claim 8, characterized in that: The isolation portion is isolation paper (502), and the isolation paper (502) is adhered to a side of the insulating double-sided adhesive tape (501) away from the FPC body (1), and the outer dimensions of the isolation paper (502) are greater than the outer dimensions of the insulating double-sided adhesive tape (501).

10. The FPC structure according to claim 9, characterized in that: One end of the isolation paper (502) extends out from one side of the FPC body (1).

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