WO2021120096A1 - An fpc structure - Google Patents
An fpc structure Download PDFInfo
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- WO2021120096A1 WO2021120096A1 PCT/CN2019/126583 CN2019126583W WO2021120096A1 WO 2021120096 A1 WO2021120096 A1 WO 2021120096A1 CN 2019126583 W CN2019126583 W CN 2019126583W WO 2021120096 A1 WO2021120096 A1 WO 2021120096A1
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- connecting section
- seam
- hole
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
Definitions
- the utility model belongs to the technical field of electrical connectors, and particularly relates to an FPC structure.
- FPC Flexible Printed Circuit, the abbreviation of flexible printed circuit board
- flexible printed circuit board is a highly reliable flexible printed circuit board made of polyimide or polyester film as the base material. It has high wiring density, light weight, thin thickness, Features of good bendability.
- the slot structure in the related technology needs to be formed by a mold, and the mold forming has a minimum requirement on the width of the slot (for example, At least 0.3mm), when the slot hole is too narrow, it is not conducive to mold forming, which increases the processing cost but affects the product yield. Therefore, the slot hole is usually enlarged at the expense of space to facilitate production, but this will make the PFC volume too large , It is not conducive to the use of FPC when space is limited.
- the purpose of the utility model is to provide an FPC structure, which can reduce the occupied volume of the PFC, reduce the difficulty of production, and facilitate the use of the FPC when the space is limited.
- the technical solution of the present invention is as follows: Provide an FPC structure, including a first end and a second end spaced apart from each other, a first connecting section extending from the first end, and being arranged adjacent to the first connecting section
- the second connecting section, the middle section connecting the first connecting section and the second connecting section, the second connecting section is connected to the second end, and the first connecting section includes the first connecting section close to the first connecting section.
- the first side of the two connecting sections, the second connecting section includes a second side close to the first connecting section, and the first side and the second side are attached to form a contour seam.
- the contour seam includes a bending seam located in the middle part and a first sub seam and a second sub seam respectively connected to both ends of the bending seam.
- extension direction of the first sub-slit is parallel to the extension direction of the second sub-slit.
- the first connecting section defines assembling holes.
- the outer side of the first connecting section corresponding to the assembling hole extends in a direction away from the assembling hole to form an extension edge.
- the FPC structure further includes a first section that is bent and extends from an end of the first connecting section away from the middle section toward a direction away from the second connecting section to be connected to the first end.
- the width of the first end is greater than the width of the first section, and the width of the second end is greater than the width of the second connecting section.
- middle section is provided with an anti-cracking hole connected with the outer shape seam.
- the anti-cracking hole is a circular hole.
- Figure 1 is a top view of the FPC structure of the present invention.
- an FPC structure which includes a first end 1 and a second end 2, a first connecting section 5 extending from the first end 1, and a first connecting section 5 that is connected to the first end 1 and a second end 2 spaced apart from each other.
- the second connecting section 6 adjacent to the section 5, the middle section 7 connecting the first connecting section 5 and the second connecting section 6, and the second connecting section 6 is connected to the second end 2;
- the first connecting section 5 is arranged adjacent to the second connecting section 6, the first connecting section 5 includes a first side close to the second connecting section 6, and the second connecting section 6 includes On the second side of the first connecting section 5, the first side and the second side are attached to form a contour seam 4.
- the contour seam 4 includes a bending seam 41 located in the middle, and a first sub seam 42 and a second sub seam 43 respectively connected to both ends of the bending seam 41.
- the first sub seam 42, the second sub seam 43, and the bending seam 41 are all straight seams, and the connection between the first sub seam 42 and the second sub seam 43 and the bending seam 41 may have a rounded chamfer structure.
- the extension direction of the first sub-slit 42 is parallel to the extension direction of the second sub-slit 43.
- one or more of the first sub-slit 42, the second sub-slit 43, and the bending slit 41 may be selectively designed as the bending slit 41, that is, the extension route is a curve, and the first The sub seam 42, the second sub seam 43 and the bending seam 41 are not limited to only one continuous seam.
- any one or more of the first sub seam 42, the second sub seam 43 and the bending seam 41 may be used. It is formed by successively connecting two, three, four, etc. seam structures, that is, this solution does not limit the specific shape and specific number of the contour seams 4, as long as it is in the form of the contour seams 4.
- the first connecting section 5 is provided with an assembly hole 8, and an extension edge 9 is formed at the outer side of the first connecting section 5 corresponding to the assembly hole 8 and extends in a direction away from the assembly hole 8.
- two circular assembly holes 8 are opened, and the extension edge 9 is an arc structure coaxial with the corresponding assembly hole 8.
- one assembly hole 8 may be opened in the first connecting section 5, and assembly holes 8 may be opened in both the first connecting section 5 and the second connecting section 6, and the number of assembly holes 8 may be three or four. , Five, etc.
- the assembly hole 8 can be a polygonal hole such as a triangular hole, a quadrangular hole, a pentagonal hole, a hexagonal hole, etc., and the corners of the polygonal hole can be rounded.
- the FPC structure further includes a part that is bent and extended from an end of the first connecting section 5 away from the middle section 7 toward a direction away from the second connecting section 6 to be connected to the first end 1.
- the width of the first end 1 is greater than the width of the first section 3
- the width of the second end 2 is greater than the width of the second connecting section 6.
- the width of the first end 1 may be less than or equal to the width of the first section 3, and the width of the second end 2 may be less than or equal to the width of the second connecting section 6.
- the middle section 7 is provided with an anti-cracking hole 71 connected to the outer seam 4, and the anti-cracking hole 71 is a circular hole.
- the anti-cracking hole 71 is connected to the end of the first sub-slit 42 away from the bending seam 41, and the anti-cracking hole 71 is set in a circular shape to prevent stress concentration at the closed end of the contour seam 4, thereby preventing the FPC structure from tearing. Make the FPC structure more solid and reliable.
- the anti-cracking hole 71 can also be an elliptical hole or a regular polygonal hole with an obtuse inner angle, and the inner corner of the regular polygonal hole can be rounded and chamfered. In short, as long as it can prevent the outer seam 4 from being torn Cracked structure is acceptable.
- the FPC structure may include a third connecting section, a fourth connecting section, a fifth connecting section, etc. connected between the second connecting section 6 and the second end 2, and the adjacent connecting sections are connected by The middle section 7 is connected, and a contour seam 4 can be formed between adjacent connecting sections, for example, between the second connecting section 6 and the third connecting section, between the fourth connecting section and the fifth connecting section, and the corresponding ends of the contour seam 4
- An anti-cracking hole 71 is opened in the department.
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Abstract
An FPC structure, comprising a first end portion (1) and a second end portion (2) spaced apart from each other, a first connecting section (5) extending from the first end portion (1), and a second connecting section (6) arranged to be adjacent to the connecting section (5), a middle section (7) connecting the first connecting section (5) and the second connecting section (6), the second connecting section (6) is connected to the second end portion (2), the first connecting section (5) is arranged to be adjacent to the second connecting section (6), and the first connecting section (5) comprises a first side close to the second connecting section (6), the second connecting section (6) comprises a second side close to the first connecting section (5), and the first side and the second side are attached to form a contour seam (4). By replacing a hole and groove structure on the FPC with the contour seam (4), it is not necessary to reserve space for the hole and groove structure, so the occupied volume of the PFC can be reduced, which is convenient for the use of the FPC when the space is limited, and the processing of the contour seam (4) simpler, which reduces the difficulty and cost of production.
Description
本实用新型属于电连接件技术领域，尤其涉及一种FPC结构。The utility model belongs to the technical field of electrical connectors, and particularly relates to an FPC structure.
FPC(Flexible Printed
Circuit，柔性印刷电路板的简称)是以聚酰亚胺或聚酯薄膜为基材制成的一种具有高度可靠性的柔性印刷电路板，其具有配线密度高、重量轻、厚度薄、弯折性好的特点。FPC(Flexible Printed
Circuit, the abbreviation of flexible printed circuit board) is a highly reliable flexible printed circuit board made of polyimide or polyester film as the base material. It has high wiring density, light weight, thin thickness, Features of good bendability.
在相关技术中，为了节约空间同时增加连接长度，会在FPC上开设狭长的槽孔结构，但相关技术中槽孔结构需要利用模具成型，而模具成型对槽孔的宽度有最低限度要求（例如至少0.3mm），在槽孔过窄时不利于模具成型，提高了加工成本却影响产品良率，因此，通常会牺牲空间而加大槽孔，以方便生产，但这样会使PFC体积过大，并不利于FPC在空间受限时使用。In the related art, in order to save space and increase the connection length, a long and narrow slot structure is opened on the FPC. However, the slot structure in the related technology needs to be formed by a mold, and the mold forming has a minimum requirement on the width of the slot (for example, At least 0.3mm), when the slot hole is too narrow, it is not conducive to mold forming, which increases the processing cost but affects the product yield. Therefore, the slot hole is usually enlarged at the expense of space to facilitate production, but this will make the PFC volume too large , It is not conducive to the use of FPC when space is limited.
本实用新型的目的在于提供一种FPC结构，能够减小PFC占用体积，降低生产难度，便于FPC在空间受限时的使用。The purpose of the utility model is to provide an FPC structure, which can reduce the occupied volume of the PFC, reduce the difficulty of production, and facilitate the use of the FPC when the space is limited.
本实用新型的技术方案如下：提供一种FPC结构，包括相互间隔的第一端部和第二端部、自所述第一端部延伸的第一连接段、与所述第一连接段相邻设置的第二连接段、连接所述第一连接段与所述第二连接段的中间段，所述第二连接段与所述第二端部连接，所述第一连接段包括靠近所述第二连接段的第一侧边，所述第二连接段包括靠近所述第一连接段的第二侧边，所述第一侧边与第二侧边贴合形成外形缝。The technical solution of the present invention is as follows: Provide an FPC structure, including a first end and a second end spaced apart from each other, a first connecting section extending from the first end, and being arranged adjacent to the first connecting section The second connecting section, the middle section connecting the first connecting section and the second connecting section, the second connecting section is connected to the second end, and the first connecting section includes the first connecting section close to the first connecting section. The first side of the two connecting sections, the second connecting section includes a second side close to the first connecting section, and the first side and the second side are attached to form a contour seam.
进一步地，所述外形缝包括位于中部的弯折缝及分别连接于所述弯折缝的两端的第一子缝和第二子缝。Further, the contour seam includes a bending seam located in the middle part and a first sub seam and a second sub seam respectively connected to both ends of the bending seam.
进一步地，所述第一子缝的延伸方向平行于所述第二子缝的延伸方向。Further, the extension direction of the first sub-slit is parallel to the extension direction of the second sub-slit.
进一步地，所述第一连接段开设装配孔。Further, the first connecting section defines assembling holes.
进一步地，所述第一连接段的外侧的与所述装配孔对应处朝远离所述装配孔的方向延伸形成延伸缘。Further, the outer side of the first connecting section corresponding to the assembling hole extends in a direction away from the assembling hole to form an extension edge.
进一步地，所述FPC结构还包括自所述第一连接段远离所述中间段一端朝向远离所述第二连接段方向弯折延伸至与所述第一端部连接的第一段，所述第一端部的宽度大于所述第一段的宽度，所述第二端部的宽度大于所述第二连接段的宽度。Further, the FPC structure further includes a first section that is bent and extends from an end of the first connecting section away from the middle section toward a direction away from the second connecting section to be connected to the first end. The width of the first end is greater than the width of the first section, and the width of the second end is greater than the width of the second connecting section.
进一步地，所述中间段开设与所述外形缝相连的防裂孔。Further, the middle section is provided with an anti-cracking hole connected with the outer shape seam.
进一步地，所述防裂孔为圆形孔。Further, the anti-cracking hole is a circular hole.
本实用新型的有益效果在于：The beneficial effects of the utility model are:
通过将FPC上的孔槽结构用外形缝的形式替代，即第一连接段的第一侧边与第二连接段的第二侧边贴合，可以不用给孔槽结构预留空间，因此能够减小PFC的占用体积，便于FPC在空间受限时的使用，且外形缝的加工更加简单，降低了生产难度和成本。By replacing the hole and groove structure on the FPC with the form of a contour seam, that is, the first side of the first connecting section is attached to the second side of the second connecting section, there is no need to reserve space for the hole structure, so it can Reducing the occupied volume of the PFC facilitates the use of the FPC when the space is limited, and the processing of the contour seams is easier, which reduces the difficulty and cost of production.
图1为本实用新型FPC结构的俯视图。Figure 1 is a top view of the FPC structure of the present invention.
下面结合附图和实施方式对本实用新型作进一步说明。The present utility model will be further explained below in conjunction with the drawings and embodiments.
如图1所示，提供一种FPC结构，包括相互间隔的第一端部1和第二端部2、 自所述第一端部1延伸的第一连接段5、与所述第一连接段5相邻设置的第二连接段6、连接所述第一连接段5与所述第二连接段6的中间段7，所述第二连接段6与所述第二端部2连接，所述第一连接段5与所述第二连接段6相邻设置，所述第一连接段5包括靠近所述第二连接段6的第一侧边，所述第二连接段6包括靠近所述第一连接段5的第二侧边，所述第一侧边与第二侧边贴合形成外形缝4。As shown in FIG. 1, an FPC structure is provided, which includes a first end 1 and a second end 2, a first connecting section 5 extending from the first end 1, and a first connecting section 5 that is connected to the first end 1 and a second end 2 spaced apart from each other. The second connecting section 6 adjacent to the section 5, the middle section 7 connecting the first connecting section 5 and the second connecting section 6, and the second connecting section 6 is connected to the second end 2; The first connecting section 5 is arranged adjacent to the second connecting section 6, the first connecting section 5 includes a first side close to the second connecting section 6, and the second connecting section 6 includes On the second side of the first connecting section 5, the first side and the second side are attached to form a contour seam 4.
通过将FPC上的孔槽结构用外形缝4的形式替代，即第一连接段5的第一侧边与第二连接段6的第二侧边贴合，可以不用给孔槽结构预留空间，因此能够减小PFC的占用体积，便于FPC在空间受限时的使用，且外形缝4的加工更加简单，降低了生产难度和成本。By replacing the hole and groove structure on the FPC with the shape of the seam 4, that is, the first side of the first connecting section 5 is attached to the second side of the second connecting section 6, there is no need to reserve space for the hole and groove structure Therefore, the occupied volume of the PFC can be reduced, which is convenient for the use of the FPC when the space is limited, and the processing of the contour seam 4 is simpler, which reduces the difficulty and cost of production.
本实施例中，外形缝4包括位于中部的弯折缝41及分别连接于弯折缝41的两端的第一子缝42和第二子缝43。具体的，第一子缝42、第二子缝43和弯折缝41均为直缝，第一子缝42和第二子缝43与弯折缝41的相连处可以具有圆倒角结构，第一子缝42的延伸方向平行于第二子缝43的延伸方向。在一些实施例中，可以将第一子缝42、第二子缝43和弯折缝41中的一个或多个选择性的设计为弯折缝41，即其延伸路线为曲线，且第一子缝42、第二子缝43和弯折缝41不限于仅是一条连续的缝，例如，第一子缝42、第二子缝43和弯折缝41中的任意一个或多个都可以是由两条、三条、四条等的缝结构依次连接形成，即本方案并不限定外形缝4的具体形状和具体数量，只要是外形缝4形式即可。In this embodiment, the contour seam 4 includes a bending seam 41 located in the middle, and a first sub seam 42 and a second sub seam 43 respectively connected to both ends of the bending seam 41. Specifically, the first sub seam 42, the second sub seam 43, and the bending seam 41 are all straight seams, and the connection between the first sub seam 42 and the second sub seam 43 and the bending seam 41 may have a rounded chamfer structure. The extension direction of the first sub-slit 42 is parallel to the extension direction of the second sub-slit 43. In some embodiments, one or more of the first sub-slit 42, the second sub-slit 43, and the bending slit 41 may be selectively designed as the bending slit 41, that is, the extension route is a curve, and the first The sub seam 42, the second sub seam 43 and the bending seam 41 are not limited to only one continuous seam. For example, any one or more of the first sub seam 42, the second sub seam 43 and the bending seam 41 may be used. It is formed by successively connecting two, three, four, etc. seam structures, that is, this solution does not limit the specific shape and specific number of the contour seams 4, as long as it is in the form of the contour seams 4.
为了更好的定位FPC结构，第一连接段5开设装配孔8，第一连接段5的外侧的与装配孔8对应处朝远离装配孔8的方向延伸形成延伸缘9。具体的，以图1为例，本实施例中，开设两圆形的装配孔8，延伸缘9为与对应的装配孔8同轴的弧形结构。在一些实施例中，可以在第一连接段5开设一个装配孔8，可以在第一连接段5和第二连接段6均开设装配孔8，装配孔8的数量可以为三个、四个、五个等，装配孔8可以是三角形孔、四边形孔、五边形孔、六边形孔等多边形孔，多边形孔的角处可以倒圆角。In order to better locate the FPC structure, the first connecting section 5 is provided with an assembly hole 8, and an extension edge 9 is formed at the outer side of the first connecting section 5 corresponding to the assembly hole 8 and extends in a direction away from the assembly hole 8. Specifically, taking FIG. 1 as an example, in this embodiment, two circular assembly holes 8 are opened, and the extension edge 9 is an arc structure coaxial with the corresponding assembly hole 8. In some embodiments, one assembly hole 8 may be opened in the first connecting section 5, and assembly holes 8 may be opened in both the first connecting section 5 and the second connecting section 6, and the number of assembly holes 8 may be three or four. , Five, etc. The assembly hole 8 can be a polygonal hole such as a triangular hole, a quadrangular hole, a pentagonal hole, a hexagonal hole, etc., and the corners of the polygonal hole can be rounded.
本实施例中，所述FPC结构还包括自所述第一连接段5远离所述中间段7一端朝向远离所述第二连接段6方向弯折延伸至与所述第一端部1连接的第一段3，第一端部1的宽度大于第一段3的宽度，第二端部2的宽度大于第二连接段6的宽度。当然，在一些实施例中，第一端部1的宽度可以小于或等于第一段3的宽度，第二端部2的宽度可以小于或等于第二连接段6的宽度。In this embodiment, the FPC structure further includes a part that is bent and extended from an end of the first connecting section 5 away from the middle section 7 toward a direction away from the second connecting section 6 to be connected to the first end 1. In the first section 3, the width of the first end 1 is greater than the width of the first section 3, and the width of the second end 2 is greater than the width of the second connecting section 6. Of course, in some embodiments, the width of the first end 1 may be less than or equal to the width of the first section 3, and the width of the second end 2 may be less than or equal to the width of the second connecting section 6.
本实施例中，中间段7开设与外形缝4相连的防裂孔71，防裂孔71为圆形孔。具体的，防裂孔71与第一子缝42的远离弯折缝41端相连，防裂孔71设置为圆形可以防止外形缝4的闭合端应力集中，从而起到防止FPC结构撕裂的作用，使得FPC结构更加牢固可靠。在一些实施例中，防裂孔71也可以设置为椭圆形孔或者内角均为钝角的正多边形孔，且正多边形孔的内角可以设置为圆倒角，总之，只要是能够防止外形缝4被撕裂的结构均可。In this embodiment, the middle section 7 is provided with an anti-cracking hole 71 connected to the outer seam 4, and the anti-cracking hole 71 is a circular hole. Specifically, the anti-cracking hole 71 is connected to the end of the first sub-slit 42 away from the bending seam 41, and the anti-cracking hole 71 is set in a circular shape to prevent stress concentration at the closed end of the contour seam 4, thereby preventing the FPC structure from tearing. Make the FPC structure more solid and reliable. In some embodiments, the anti-cracking hole 71 can also be an elliptical hole or a regular polygonal hole with an obtuse inner angle, and the inner corner of the regular polygonal hole can be rounded and chamfered. In short, as long as it can prevent the outer seam 4 from being torn Cracked structure is acceptable.
在本实施例中，仅以第一连接段5和第二连接段6之间具有外形缝4为例。在一些实施例中，FPC结构可以包括连接在第二连接段6和第二端部2之间的第三连接段、第四连接段、第五连接段等，相邻的连接段之间由中间段7连接，相邻的连接段之间可以形成外形缝4，例如第二连接段6和第三连接段之间，第四连接段和第五连接段之间，外形缝4的相应端部开设防裂孔71。In this embodiment, only the contour seam 4 between the first connecting section 5 and the second connecting section 6 is taken as an example. In some embodiments, the FPC structure may include a third connecting section, a fourth connecting section, a fifth connecting section, etc. connected between the second connecting section 6 and the second end 2, and the adjacent connecting sections are connected by The middle section 7 is connected, and a contour seam 4 can be formed between adjacent connecting sections, for example, between the second connecting section 6 and the third connecting section, between the fourth connecting section and the fifth connecting section, and the corresponding ends of the contour seam 4 An anti-cracking hole 71 is opened in the department.
以上所述的仅是本实用新型的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出改进，但这些均属于本实用新型的保护范围。The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to The scope of protection of the utility model.
Claims (8)
- 一种FPC结构，其特征在于，包括相互间隔的第一端部和第二端部、自所述第一端部延伸的第一连接段、与所述第一连接段相邻设置的第二连接段、连接所述第一连接段与所述第二连接段的中间段，所述第二连接段与所述第二端部连接，所述第一连接段包括靠近所述第二连接段的第一侧边，所述第二连接段包括靠近所述第一连接段的第二侧边，所述第一侧边与第二侧边贴合形成外形缝。An FPC structure, characterized in that it comprises a first end and a second end spaced apart from each other, a first connecting section extending from the first end, and a second connecting section adjacent to the first connecting section. The middle section connecting the first connecting section and the second connecting section, the second connecting section is connected to the second end, and the first connecting section includes a first connecting section close to the second connecting section. On one side, the second connecting section includes a second side close to the first connecting section, and the first side and the second side are attached to form a contour seam.
- 根据权利要求1所述的FPC结构，其特征在于，所述外形缝包括位于中部的弯折缝及分别连接于所述弯折缝的两端的第一子缝和第二子缝。The FPC structure according to claim 1, wherein the contour seam includes a bending seam in the middle part and a first sub seam and a second sub seam respectively connected to two ends of the bending seam.
- 根据权利要求2所述的FPC结构，其特征在于，所述第一子缝的延伸方向平行于所述第二子缝的延伸方向。4. The FPC structure according to claim 2, wherein the extension direction of the first sub-slit is parallel to the extension direction of the second sub-slit.
- 根据权利要求1所述的FPC结构，其特征在于，所述第一连接段开设装配孔。The FPC structure according to claim 1, wherein the first connecting section defines an assembly hole.
- 根据权利要求4所述的FPC结构，其特征在于，所述第一连接段的外侧的与所述装配孔对应处朝远离所述装配孔的方向延伸形成延伸缘。The FPC structure according to claim 4, wherein the outer side of the first connecting section corresponds to the mounting hole and extends in a direction away from the mounting hole to form an extension edge.
- 根据权利要求1所述的FPC结构，其特征在于，所述FPC结构还包括自所述第一连接段远离所述中间段一端朝向远离所述第二连接段方向弯折延伸至与所述第一端部连接的第一段，所述第一端部的宽度大于所述第一段的宽度，所述第二端部的宽度大于所述第二连接段的宽度。The FPC structure according to claim 1, wherein the FPC structure further comprises an end of the first connecting section away from the middle section and extending from an end of the first connecting section away from the second connecting section. For the first segment connected at one end, the width of the first end is greater than the width of the first segment, and the width of the second end is greater than the width of the second connecting segment.
- 根据权利要求1-6中任意一项所述的FPC结构，其特征在于，所述中间段开设与所述外形缝相连的防裂孔。The FPC structure according to any one of claims 1-6, wherein the middle section is provided with an anti-cracking hole connected with the outer shape seam.
- 根据权利要求7所述的FPC结构，其特征在于，所述防裂孔为圆形孔。The FPC structure according to claim 7, wherein the anti-cracking hole is a circular hole.
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