Light and thin flexible circuit board structure

Abstract

The utility model provides a light and thin flexible circuit board structure, which relates to the technical field of flexible circuit boards, and comprises a flexible circuit main board, a long side rib plate is arranged on the side surface of the flexible circuit main board, and arc end wing plates are fixed at the two ends of the long side rib plate. Due to the fact that the yield is relatively low, special matched taking and placing equipment is lacked, when a worker takes the light, thin and soft circuit boards, the circuit boards are bent or damaged in other forms due to improper operation, for example, in the manual transferring process, if force control is not uniform or the angle is not appropriate, the circuit boards cannot be damaged, and the working efficiency is greatly improved. In the prior art, the FPC is easy to be bent unnecessarily, so that the electrical performance and the mechanical stability of the FPC are influenced, the operation difficulty is increased without the support of a special tool, and the treatment at each time is more careful, so that the working efficiency is reduced, the requirement on the skill of an operator is improved, and the yield is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to flexible circuit board technical field especially relates to a light thin flexible circuit board structure. BACKGROUND

[0002] Light thin flexible circuit board (FPC) is a kind of high molecular material such as polyimide or polyester film as base material, by etching, photolithography etc. Process is made of the electronic connection circuit board with high flexibility and foldability.It is widely used in multiple fields, including consumer electronics, automotive electronics, medical equipment, etc. Its development prospect is broad, mainly embodied in technical progress and market demand, the expansion of application field, the perfection of industry chain etc.

[0003] In the prior art, in the small-scale production verification stage of light thin flexible circuit board, due to the relatively small output, there is often a lack of special supporting taking and placing equipment, in this case, when workers take these light and soft circuit boards, improper operation will cause the circuit board to be bent or damaged in other forms, for example, in the manual transfer process, if the force control is uneven or the angle is not appropriate, it is easy to make FPC unnecessary bending, and then affect its electrical performance and mechanical stability, in addition, without the support of special tools, it also increases the operation difficulty, so that each processing needs to be more careful, which not only reduces the work efficiency, but also improves the requirement for the skills of operators, resulting in the reduction of yield. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a light thin flexible circuit board structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a light thin flexible circuit board structure, including flexible circuit mainboard, the long side rib plate is equipped on the side surface of flexible circuit mainboard, the arc end wing plate is fixed at both ends of long side rib plate, the clamping groove is set up on one side of long side rib plate, the short side rib plate is equipped on the side surface of flexible circuit mainboard, the sliding groove is set up at both ends of short side rib plate, the rib screw groove is set up at both ends of short side rib plate, the rib plate fixed screw groove is set up at both ends of short side rib plate, the clamping groove is set up on one side of short side rib plate, the inner wall of clamping groove is slidably connected with the surface of flexible circuit mainboard.

[0006] Preferably, the long side rib plate top and short side rib plate top are provided with L-shaped grooves, the inner wall of the L-shaped groove is fixedly provided with an L-shaped buckling plate, one end of the L-shaped buckling plate is fixedly provided with a triangular fixed plate, and the prior art is that a rectangular frame structure is formed between the long side rib plate and the short side rib plate, which can prevent the flexible circuit main plate from being bent to a certain extent, but the rectangle does not have inherent stability, especially when facing external pressure or vibration, the shape is easy to change, and if there is no enough support or fixing measure during transportation or other movement, the long side rib plate and the short side rib plate are difficult to maintain the original ninety-degree right angle state, once the angle changes, the whole frame will exert uneven pressure on the internal flexible circuit main plate, thereby extruding the main plate and causing physical damage, which not only affects the appearance quality of the product, but more importantly, damages the integrity and functionality of the circuit, thereby significantly reducing the pass rate of the final product, and the L-shaped buckling plate is used to solve the problem, so that the two are prevented from deforming after the fixing glue is extruded and inserted into the top of the two, thereby ensuring the firmness of the equipment and improving the service life of the equipment.

[0007] Preferably, the long side rib plate top and short side rib plate top are provided with weight reduction grooves, and the prior art is that the weight of the flexible circuit main plate is relatively small, and the weight of the long side rib plate and the short side rib plate is large, which is easy to cause problems in actual operation, especially when manually taking, placing or carrying these components, if the operation is improper, the heavy long side rib plate and the short side rib plate will exert excessive pressure on the flexible circuit main plate below, especially in the edge area, in this case, the edge part of the flexible circuit main plate is easy to bend or deform because it cannot bear the weight of the components above, once the main plate is physically damaged, not only the appearance quality is affected, but more importantly, the electrical performance is reduced or even completely fails, thereby directly affecting the final yield of the product, and the weight reduction grooves are used to solve the problem, so that the self-weight of the components is significantly reduced through the weight reduction grooves, thereby preventing the flexible circuit main plate from being bent, and the yield is improved.

[0008] Preferably, the inner wall of the weight reduction groove is linearly fixedly provided with a reinforcing rib, so as to further improve the stability of the component and improve the service life of the equipment.

[0009] Preferably, the inner wall of the sliding groove is fixedly provided with a scratch-proof pad at one end, so as to prevent the components from colliding, and improve the service life of the equipment.

[0010] Preferably, the inner wall top of the screw groove and the inner wall top of the fixed screw groove of the rib plate are provided with a sink groove, which prevents the screw from being higher than the surface of the assembly and improves the user experience.

[0011] Preferably, the inner wall bottom of the sink groove is fixed with a rubber ring, which prevents the screw from scratching the assembly and improves the service life of the equipment.

[0012] Beneficial effects:

[0013] 1. In the existing technology, in the small-scale production verification stage of light and thin flexible circuit board, due to the relatively small output, there is often a lack of special supporting taking and placing equipment. In this case, when the staff takes these light and thin and soft circuit boards, improper operation will cause the circuit board to be bent or damaged in other forms. For example, during the manual transfer process, if the force control is uneven or the angle is not appropriate, it is easy to cause unnecessary bending of the FPC, which will affect its electrical performance and mechanical stability. In addition, the lack of support of special tools also increases the operation difficulty, so that each processing needs to be more careful, which not only reduces the work efficiency, but also improves the requirement for the skills of the operator, resulting in a low yield. To solve such problems, the utility model adopts the installation of long side rib plate, which realizes that when the staff takes or needs to move and temporarily stores the flexible circuit mainboard, the clamping groove of the short side rib plate can be aligned with the two ends of the flexible circuit mainboard and then slid into the sliding groove of the short side rib plate. The arc end wing plate of the long side rib plate is aligned with the sliding groove of the short side rib plate and then slid into the sliding groove. Then, the screw is screwed into the rib screw groove, the long side rib plate and the short side rib plate are fixed, and the two form a complete protection frame. According to the situation, the screw can be further screwed into the rib plate fixed screw groove, the flexible circuit mainboard is fixed with the short side rib plate through the screw hole of the flexible circuit mainboard, so that the flexible circuit mainboard can be better prevented from being bent and damaged when taking or needing to move and temporarily storing the flexible circuit mainboard, or directly contacting with the desktop or other circuit boards when placing, so as to better protect the flexible circuit mainboard and improve the yield.

[0014] 2、In the prior art, the rectangular frame structure is formed between the long side rib plate and the short side rib plate, although this structure can prevent the flexible circuit main plate from being bent to a certain extent, but the rectangle itself does not have inherent stability, especially when facing external pressure or vibration, the shape is easy to change, and during transportation or other movement, if there is no enough support or fixing measure, it is difficult to maintain the original ninety-degree right angle state between the long side rib plate and the short side rib plate, once the angle changes, the whole frame will exert uneven pressure on the internal flexible circuit main plate, thereby extruding the main plate, causing physical damage, which not only affects the appearance quality of the product, but more importantly, damages the integrity and functionality of the circuit, thereby significantly reduces the qualified rate of the final product, for such problems, the utility model adopts the mode of installing L-shaped buckling plate to solve, realizes the extrusion and fixation of the glue to the top of the two after the staff assembles, and inserts, so that the deformation between the two is prevented, thereby ensuring the firmness of the equipment, and achieving the effect of improving the service life of the equipment.

[0015] 3、In the prior art, the weight of the flexible circuit main plate is relatively small, and the weight of the long side rib plate and the short side rib plate is large, the significant weight difference is easy to cause problems in actual operation, especially when manually taking or moving these components, if the operation is improper, the heavier long side rib plate and short side rib plate will exert excessive pressure on the flexible circuit main plate below, especially in the edge area, in this case, the edge part of the flexible circuit main plate is easy to bend or deform because it cannot bear the weight of the components above, once the main plate has such physical damage, not only the appearance quality is affected, but more importantly, the electrical performance is reduced or even completely fails, thereby directly affecting the final yield of the product, for such problems, the utility model adopts the mode of opening the lightening groove to solve, realizes that the self weight of the component is significantly reduced through the lightening groove, thereby better preventing the flexible circuit main plate from being bent, and achieving the effect of improving the yield. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the long side rib plate of the utility model;

[0018] Figure 3 It is a three-dimensional structure schematic view of the arc end wing plate of the utility model;

[0019] Figure 4 It is a three-dimensional structure schematic view of the lightening groove of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic view of the scratch-proof pad of the utility model;

[0021] Figure 6 The exploded view of the triangular fixing plate of the utility model.

[0022] Legend:

[0023] 1, flexible line mainboard; 2, long side rib plate; 201, arc end wing plate; 202, clamping groove; 203, short side rib plate; 204, sliding groove; 205, rib screw groove; 206, rib plate fixing screw groove; 3, L-shaped groove; 301, L-shaped buckle plate; 302, triangular fixing plate; 4, weight reduction groove; 5, reinforcing rib; 6, scratch-proof pad; 7, sunken cap groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following further describes the utility model in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiments:

[0027] Reference Figures 1-6The utility model provides a kind of light and thin flexible circuit board structure, including flexible circuit mainboard 1, long side rib plate 2 is equipped in the side of flexible circuit mainboard 1, arc end wing plate 201 is fixed in the both ends of long side rib plate 2, clamping groove 202 is opened in one side of long side rib plate 2, short side rib plate 203 is equipped in the side of flexible circuit mainboard 1, slide groove 204 is opened in the both ends of short side rib plate 203, rib screw groove 205 is opened in the both ends of short side rib plate 203, rib plate fixed screw groove 206 is opened in the both ends of short side rib plate 203, clamping groove 202 is opened in one side of short side rib plate 203, and the inner wall of clamping groove 202 is slidably connected with the surface of flexible circuit mainboard 1. L-shaped slot 3 is opened in the both ends of the top of long side rib plate 2 and the top of short side rib plate 203, and L-shaped buckle plate 301 is fixed in the inner wall of L-shaped slot 3, and one end of L-shaped buckle plate 301 is fixed with triangular fixed plate 302, since rectangular frame structure is formed between long side rib plate 2 and short side rib plate 203, although this structure can prevent flexible circuit mainboard 1 from bending to some extent, since rectangle does not have inherent stability, especially when facing external pressure or vibration, its shape is easy to change, if there is not enough support or fixing measure during transportation or other movement, long side rib plate 2 and short side rib plate 203 are difficult to maintain the original ninety degrees right angle state between them, once this angle changes, it will cause the whole frame to exert uneven pressure to internal flexible circuit mainboard 1, thereby extruding mainboard, cause physical damage, this condition not only can affect product appearance quality, more importantly, can destroy the integrity and functionality of circuit, thereby significantly reduce the qualified rate of final product, using the mode of installing L-shaped buckle plate 301 is solved, realizes when staff assembles 2 and 203, extrudes fixed glue to the top of 3, and inserts 301, so that 302 prevents deformation between them, to ensure the firm degree of equipment, reach the effect of improving equipment service life.

[0028] The top of the long side rib plate 2 and the top of the short side rib plate 203 are provided with a lightening groove 4, due to the relatively small weight of the flexible circuit main plate 1, and the relatively large weight of the long side rib plate 2 and the short side rib plate 203, the significant weight difference is easy to cause problems in actual operation, especially when manually taking or placing or carrying these components, if not handled properly, the heavier long side rib plate and the short side rib plate will exert excessive pressure on the flexible circuit main plate below, especially in the edge area, in this case, the edge part of the flexible circuit main plate is easy to be bent or deformed due to the weight of the components above, once the main plate is physically damaged, not only the appearance quality is affected, more importantly, the electrical performance is reduced or even completely invalid, thereby directly affecting the final yield of the product, the lightening groove 4 is adopted to solve the problem, the weight of the components is significantly reduced through the lightening groove 4, so that the flexible circuit main plate 1 is better prevented from being bent, and the yield is improved. The inner wall of the lightening groove 4 is linearly arrayed with a reinforcing rib 5, so that the stability of the components is further improved, and the service life of the equipment is improved. The inner wall of one end of the sliding groove 204 is fixedly provided with a scratch-proof pad 6, so that the components are prevented from colliding with each other, and the service life of the equipment is improved. The inner wall of the sinking cap groove 7 is fixedly provided with a rubber ring at the bottom, so that the components are prevented from being scratched by the screw, and the service life of the equipment is improved.

[0029] The working principle of the utility model is: before the staff takes or needs to move, temporarily stores the flexible circuit main plate 1, the clamping groove 202 of the short side rib plate 203 is aligned with the two ends of the flexible circuit main plate 1 and is slid in, then the arc end wing plate 201 of the long side rib plate 2 is aligned with the sliding groove 204 of the short side rib plate 203 and is slid in, and then the screw is screwed into the rib screw groove 205, the long side rib plate 2 and the short side rib plate 203 are fixed, so that they form a complete protection frame, according to the situation, the screw can be continuously screwed into the rib plate fixing screw groove 206, the flexible circuit main plate 1 is fixed with the short side rib plate 203 through the screw hole of the flexible circuit main plate 1, so that the flexible circuit main plate 1 is prevented from being bent and damaged when taking or needing to move, temporarily storing the flexible circuit main plate 1, or directly contacting the desktop or other circuit boards when being placed, so that the flexible circuit main plate 1 is better protected, when the staff assembles 2 and 203, the fixing glue is extruded into the top of the two, and the 301 is inserted, so that the 302 prevents the deformation between the two, so that the firmness of the equipment is ensured.

[0030] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "on" second feature include that first feature is directly above and obliquely above second feature, or only indicate that first feature horizontal height is higher than second feature. First feature "under", "below" and "under" second feature include that first feature is directly below and obliquely below second feature, or only indicate that first feature horizontal height is less than second feature.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A thin flexible wiring board structure comprising a flexible wiring main board (1), characterized by: The flexible circuit mainboard (1) side is equipped with long side rib plate (2), both ends of long side rib plate (2) are fixed with arc end wing plate (201), one side of long side rib plate (2) is equipped with clamping groove (202), the side of flexible circuit mainboard (1) is equipped with short side rib plate (203), both ends of short side rib plate (203) are equipped with sliding groove (204), both ends of short side rib plate (203) are equipped with rib screw groove (205), both ends of short side rib plate (203) are equipped with rib plate fixed screw groove (206), one side of short side rib plate (203) is equipped with clamping groove (202), the inner wall of clamping groove (202) is connected with the surface of flexible circuit mainboard (1) slidingly.

2. The thin flexible circuit board structure of claim 1, wherein: The top of long side rib plate (2) and both ends of short side rib plate (203) are equipped with L-shaped groove (3), the inner wall of L-shaped groove (3) is fixed with L-shaped buckle plate (301), one end of L-shaped buckle plate (301) is fixed with triangular fixed plate (302).

3. The thin flexible circuit board structure of claim 1, wherein: The top of long side rib plate (2) and the top of short side rib plate (203) are equipped with weight reduction groove (4).

4. The thin flexible circuit board structure of claim 3, wherein: The inner wall of weight reduction groove (4) is fixed with linear array of reinforcing ribs (5).

5. The thin flexible circuit board structure of claim 1, wherein: The inner wall of sliding groove (204) is fixed with scratchproof pad (6) at one end.

6. The thin flexible circuit board structure of claim 1, wherein: The inner wall of rib screw groove (205) and the inner wall of rib plate fixed screw groove (206) are both equipped with sunken hat groove (7) at the top.

7. The thin flexible circuit board structure of claim 6, wherein: The inner wall of sunken hat groove (7) is fixed with rubber ring at the bottom.

Images