Plugging structure of flexible circuit board

Abstract

The utility model discloses a plugging structure of a flexible circuit board, and relates to the technical field of display. The plugging structure of the flexible circuit board comprises a plugging end body and a reinforcing handle, and the reinforcing handle and the plugging end body are arranged into an integrated structure through a thermosetting adhesive, so that the free end of the reinforcing handle and the plugging end body connected with the reinforcing handle are bent towards one side far away from the plugging end body together, and no stripping force exists between the reinforcing handle and the plugging end body; or the position, close to the free end, of the reinforcing handle is connected with the plugging end body through a non-bonding structure, the non-bonding structure enables the maximum stripping force between the plugging end body and the reinforcing handle not to be affected by the environment temperature, then the reinforcing handle is not prone to falling off from the plugging end body, normal use of the flexible circuit board is guaranteed, and the service life of the flexible circuit board is prolonged. And the service life of the plugging structure of the flexible circuit board is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to a flexible circuit board's plug -in structure. BACKGROUND

[0002] FPC (Flexible Printed Circuit, flexible circuit board) is with flexible insulating base material made of printed circuit, has the characteristics such as free bending, winding, folding, mainly applies to the connecting part of electronic product. The connection mode is generally that FPC gold finger end is inserted into the connector of PCB (Printed Circuit Board, printed circuit board), so that it realizes mechanical and electrical connection.

[0003] Figure 1 It is the plug -in structure of prior art flexible circuit board's plan view, Figure 2 It is the plug -in structure of prior art flexible circuit board's side view, as Figure 1 And Figure 2 As shown in figures, the relative two sides of the plug -in end body 1 of the existing plug -in structure of flexible circuit board are provided with reinforcing lug 6, which is convenient for positioning during plugging, in order to facilitate plugging operation, generally provided with reinforcing handle 2, hot -setting glue 5 is used between the plug -in end body 1 and reinforcing handle 2 and is fixed, the average maximum peeling force of hot -setting glue 5 is 1617 gram force ~ 1626 gram force at ambient temperature 25 ℃, and the average maximum peeling force is 95.5 gram force ~ 238 gram force when the ambient temperature is-25 ℃, since the adhesion of hot -setting glue 5 sharply drops under-20 ℃ low temperature environment, the reinforcing handle 2 will appear the problem of falling off with the plug -in end body 1 when the flexible circuit board is plugged under-20 ℃ low temperature environment, further leading to FPC cannot be normally used, influence the service life of the plug -in structure of flexible circuit board. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of plug -in structure of flexible circuit board, to avoid the reinforcing handle of flexible circuit board under-20 ℃ low temperature environment easy to fall off and influence the service life of the plug -in structure of flexible circuit board.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The plug -in structure of flexible circuit board, it includes plug -in end body and reinforcing handle, the reinforcing handle is set as integrated structure with the plug -in end body by hot -setting glue, to make the free end of the reinforcing handle and the plug -in end body connected with it bend together to the side away from the plug -in end body;Or, the position close to the free end of the reinforcing handle is connected with the plug -in end body by non-adhesion structure.

[0007] As an optional solution of the plug structure of the flexible circuit board, one end of the reinforcing handle is bonded with the plug end body through the thermosetting glue to form a bonded end; two sides of the plug end body are symmetrically provided with connecting ears, the connecting ears extend from the bonded end to the free end, and the connecting ears are bonded with the free end through the thermosetting glue and are bent together with the free end to a side away from the plug end body.

[0008] As an optional solution of the plug structure of the flexible circuit board, the connecting ear is provided with a first bending line, the reinforcing handle is provided with a second bending line corresponding to the first bending line, the connecting ear is bent along the first bending line, and the reinforcing handle is bent along the second bending line.

[0009] As an optional solution of the plug structure of the flexible circuit board, the non-bonding structure comprises a welding structure.

[0010] As an optional solution of the plug structure of the flexible circuit board, one end of the reinforcing handle away from the free end is bonded and fixed with the plug end body through the thermosetting glue to form a bonded end, and the welding structure is located between the bonded end and the free end.

[0011] As an optional solution of the plug structure of the flexible circuit board, welding supporting ears are arranged on two sides of the plug end body and two sides of the reinforcing handle one by one, and the two corresponding welding supporting ears are welded to form the welding structure.

[0012] As an optional solution of the plug structure of the flexible circuit board, a metal material is laid on the welding supporting ear, and the metal material is welded through solder;

[0013] The solder is lead-tin solder, silver-tin solder or lead-free solder.

[0014] As an optional solution of the plug structure of the flexible circuit board, the reinforcing handle is stamped and cut to form in a non-wiring area of the plug end body, so that one end of the reinforcing handle is integrated with the plug end body, and the other end is the free end.

[0015] As an optional solution of the plug structure of the flexible circuit board, two sides of one end of the reinforcing handle connected with the plug end body are provided with reinforcing structures.

[0016] As an optional solution of the plug structure of the flexible circuit board, the plug end body comprises a base material layer and a handle layer, the reinforcing handle is stamped and cut to form in the handle layer, and the handle layer is arranged in a non-wiring area of the base material layer.

[0017] The utility model discloses the beneficial effect:

[0018] The flexible circuit board insertion / removal structure provided by this utility model includes an insertion / removal end body and a reinforcing handle. The reinforcing handle is integrally formed with the insertion / removal end body using thermosetting adhesive, so that the free end of the reinforcing handle and the insertion / removal end body connected to it bend together towards the side away from the insertion / removal end body, resulting in no peeling force between the reinforcing handle and the insertion / removal end body. Alternatively, the position of the reinforcing handle near the free end is connected to the insertion / removal end body using a non-adhesive structure. This non-adhesive structure ensures that the maximum peeling force between the insertion / removal end body and the reinforcing handle is not affected by ambient temperature, thereby preventing the reinforcing handle from easily detaching from the insertion / removal end body, ensuring the normal use of the flexible circuit board, and extending the service life of the flexible circuit board insertion / removal structure. Attached Figure Description

[0019] Figure 1 This is a top view of the insertion and removal structure of a flexible circuit board in the prior art;

[0020] Figure 2 This is a side view of the insertion and removal structure of a flexible circuit board in the prior art;

[0021] Figure 3 This is a schematic diagram of the state of the flexible circuit board insertion and removal structure provided in Embodiment 1 of this utility model when no insertion or removal operation is performed;

[0022] Figure 4 This is a schematic diagram of the state of the flexible circuit board insertion and removal structure provided in Embodiment 1 of this utility model during insertion and removal operations;

[0023] Figure 5 This is a structural schematic diagram of the reinforced handle provided in Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the thermosetting adhesive provided in Embodiment 1 of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the plug-in / plug-out end body provided in Embodiment 1 of this utility model;

[0026] Figure 8 This is a side view of the insertion and removal structure of the flexible circuit board provided in Embodiment 2 of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the plug-in end body and the side of the reinforcing handle that are in contact with each other, according to Embodiment 2 of this utility model;

[0028] Figure 10 This is a schematic diagram of the structure of the reinforcing handle and the plug-in end body on the side provided in Embodiment 2 of this utility model;

[0029] Figure 11 This is a top view of the insertion and removal structure of the flexible circuit board provided in Embodiment 2 of this utility model;

[0030] Figure 12 This is a schematic diagram of the insertion and removal structure of the first flexible circuit board provided in Embodiment 3 of this utility model;

[0031] Figure 13 This is a schematic diagram of the insertion and removal structure of the second flexible circuit board provided in Embodiment 3 of this utility model;

[0032] Figure 14 This is a side view of the second type of flexible circuit board insertion and removal structure provided in Embodiment 3 of this utility model.

[0033] In the picture:

[0034] 1. Plug-in / plug-out body; 11. Connecting ear; 111. First bend line;

[0035] 101. Substrate layer; 102. Handle layer;

[0036] 2. Reinforce the handle; 21. Second bend line;

[0037] 201. Free end; 202. Adhesive end;

[0038] 3. Weld the lugs;

[0039] 4. Welded structure;

[0040] 5. Thermosetting adhesives;

[0041] 6. To strengthen the ear;

[0042] 7. Reinforcement structure. Detailed Implementation

[0043] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0044] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0046] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0049] Figure 3 This is a schematic diagram of the flexible circuit board insertion / removal structure provided in Embodiment 1 of this utility model when no insertion / removal operation is performed, as shown below. Figure 3As shown, this utility model provides a flexible circuit board insertion / removal structure, including an insertion / removal end body 1 and a reinforcing handle 2. The reinforcing handle 2 is integrally formed with the insertion / removal end body 1 by thermosetting adhesive 5, so that the free end 201 of the reinforcing handle 2 and the insertion / removal end body 1 connected thereto bend together towards the side away from the insertion / removal end body 1, so that there is no peeling force between the reinforcing handle 2 and the insertion / removal end body 1. Alternatively, the position of the reinforcing handle 2 near the free end 201 is connected to the insertion / removal end body 1 by a non-adhesive structure. This non-adhesive structure makes the maximum peeling force between the insertion / removal end body 1 and the reinforcing handle 2 unaffected by the environment, thereby making it difficult for the reinforcing handle 2 to fall off the insertion / removal end body 1, ensuring the normal use of the flexible circuit board, and extending the service life of the flexible circuit board insertion / removal structure.

[0050] Specifically, both the plug-in end body 1 and the reinforcing handle 2 are made of polyimide film. Polyimide film possesses high strength, high temperature resistance, creep resistance, and excellent dielectric properties, enabling precise molding of the plug-in structure and improving its bending fatigue life. The plug-in end body 1 is provided with a plug-in interface for connection with a connector, and reinforcing ears 6 are symmetrically arranged on both sides of the plug-in interface for easy positioning during plugging and unplugging.

[0051] To solve the above-mentioned technical problems, the present invention provides the following specific embodiments to prevent the reinforcing handle 2 from falling off when the flexible circuit board is inserted or removed in a low temperature environment below -20℃, thus ensuring the normal use of the flexible circuit board.

[0052] Example 1:

[0053] Figure 4 This is a schematic diagram of the state of the flexible circuit board insertion and removal structure provided in Embodiment 1 of this utility model during insertion and removal operations, as shown below. Figure 3 and Figure 4 As shown, the flexible circuit board insertion and removal structure provided in this embodiment integrates the insertion and removal end body 1 and the reinforcing handle 2 into one piece. When the flexible circuit board insertion and removal structure is used for insertion and removal operations, there is no peeling force between the insertion and removal end body 1 and the reinforcing handle 2, thereby ensuring that the reinforcing handle 2 will not fall off the insertion and removal end body 1.

[0054] Specifically, one end of the reinforcing handle 2 is bonded to the plug-in end body 1 with thermosetting adhesive 5 to form an adhesive end 202. Connecting ears 11 are symmetrically arranged on both sides of the plug-in end body 1, extending from the adhesive end 202 to the free end 201. The connecting ears 11 are bonded to the free end 201 with thermosetting adhesive 5 and bend together with the free end 201 towards the side away from the plug-in end body 1. With this configuration, the reinforcing handle 2 is bonded to the plug-in end body 1 with thermosetting adhesive 5. When inserting or removing the flexible circuit board, the free end 201 and the connecting ears 11 bend together towards the side away from the plug-in end body 1. There is no peeling force between the reinforcing handle 2 and the plug-in end body 1. Therefore, even in a low-temperature environment of -20℃, where the average maximum peeling force of the thermosetting adhesive 5 is small, the reinforcing handle 2 will not detach from the plug-in end body 1.

[0055] Furthermore, to facilitate the connection of the free end 201 of the reinforcing handle 2 with the connecting ear 11, the free end 201 and the connecting ear 11 are bent together toward the side away from the plug-in end body 1. Figure 5 This is a structural schematic diagram of the reinforced handle provided in Embodiment 1 of this utility model. Figure 6 This is a schematic diagram of the structure of the thermosetting adhesive provided in Embodiment 1 of this utility model. Figure 7 This is a schematic diagram of the structure of the plug-in / plug-out end body provided in Embodiment 1 of this utility model, as shown below. Figures 5-7 As shown, the connecting ear 11 is provided with a first bending line 111, and the reinforcing handle 2 is provided with a second bending line 21 corresponding to the first bending line 111. The connecting ear 11 bends along the first bending line 111, and the reinforcing handle 2 bends along the second bending line 21. Thermosetting adhesive 5 is applied to one end of the plug-in end body 1 corresponding to the bonding end 202 of the reinforcing handle 2 and the connecting ear 11. The setting of the first bending line 111 and the second bending line 21 not only facilitates the joint bending of the reinforcing handle 2 and the connecting ear 11, but also sets the position where the plug-in end body 1 and the reinforcing handle 2 bend together. This ensures that the joint bending position is not easily damaged after multiple plug-in and plug-out operations, thus extending the service life of the flexible circuit board's plug-in structure.

[0056] The first bend line 111 and the second bend line 21 can be point breaks or thinning weak areas. By setting the corresponding first bend line 111 and second bend line 21, the connecting ear 11 and the reinforcing handle 2 can be bent precisely and synchronously. This ensures the bending angle of the free end 201 and avoids bending stress concentration, so that the plug-in end body 1 and the reinforcing handle 2 can still maintain sufficient structural strength after multiple bends.

[0057] Specifically, the connecting ear 11 is located at the end of the reinforcing ear 6 furthest from the plug-in interface. The shape of the reinforcing handle 2 is adapted to the shape of the plug-in end body 1, so that the reinforcing handle 2 can be glued to the plug-in end body 1 using thermosetting adhesive 5. The connecting ear 11 is L-shaped, with the short arm of the L-shaped connecting ear 11 connected to the plug-in end body 1, and the long arm extending along the length direction of the plug-in end body 1. The first bending line 111 is set on the long arm of the L-shaped connecting ear 11, and is positioned close to the short arm. When using thermosetting adhesive 5 for bonding, the free end 201 of the reinforcing handle 2 is glued to the long arm of the connecting ear 11 using thermosetting adhesive 5, and the non-free end is completely glued to the plug-in end body 1 using thermosetting adhesive 5.

[0058] The flexible circuit board insertion and removal structure provided in this embodiment integrates the insertion and removal end body 1 and the reinforcing handle 2, and provides connecting ears 11 on both sides of the insertion and removal end body 1. This allows the free end 201 of the reinforcing handle 2 to be bent together with the connecting ears 11, so that no peeling force is generated between the reinforcing handle 2 and the insertion and removal end body 1 when inserting or removing the flexible circuit board. Therefore, it is not affected by the ambient temperature and avoids the reinforcing handle 2 from falling off when inserting or removing the flexible circuit board in a low temperature environment of -20℃.

[0059] Example 2:

[0060] Figure 8 This is a side view of the insertion and removal structure of the flexible circuit board provided in Embodiment 2 of this utility model. Figure 9 This is a schematic diagram of the structure of the plug-in end body and the side of the reinforcing handle that are in contact with each other, according to Embodiment 2 of this utility model. Figure 10 This is a schematic diagram of the structure of the reinforcing handle and the side of the plug-in end body that are in contact with each other, as provided in Embodiment 2 of this utility model. Figure 11 This is a top view of the insertion and removal structure of the flexible circuit board provided in Embodiment 2 of this utility model, as shown below. Figures 8-11 As shown, the flexible circuit board insertion and removal structure provided in this embodiment includes a welding structure 4 as a non-adhesive structure. By adding the welding structure 4 between the reinforcing handle 2 and the insertion / removal end body 1, the welding structure 4 is more resistant to low temperatures and can maintain its original connection strength even in environments below -20°C. When inserting or removing the flexible circuit board, the reinforcing handle 2 is pulled by the free end 201. The peeling force between the reinforcing handle 2 and the insertion / removal end body 1 acts on the welding structure 4, which can prevent the reinforcing handle 2 from falling off.

[0061] Specifically, a welding structure 4 is provided between the reinforcing handle 2 and the plug-in end body 1, and the reinforcing handle 2 is bent from the end of the welding structure 4 near the free end 201. When plugging or unplugging the flexible circuit board, the free end 201 is pulled, and the welding structure 4 is subjected to a peeling force. Since the maximum peeling force that the welding structure 4 can withstand is almost unaffected by the ambient temperature, the reinforcing handle 2 will not fall off even in a low temperature environment below -20℃.

[0062] Furthermore, the end of the reinforcing handle 2 furthest from the free end 201 is bonded to the plug-in end body 1 with thermosetting adhesive 5 to form an adhesive end 202. The welding structure 4 is located between the adhesive end 202 and the free end 201. The adhesive end 202 ensures the flatness of the reinforcing handle 2 attached to the plug-in end body 1. The position of the welding structure 4 avoids areas with dense circuits. By placing the welding structure 4 between the adhesive end 202 and the free end 201, it is possible to ensure that the reinforcing handle 2 is not easily detached during plugging and unplugging operations, and to avoid the impact of large-area welding on the circuits on the plug-in end body 1.

[0063] Specifically, welding lugs 3 are provided on both sides of the plug-in body 1 and on both sides of the reinforcing handle 2, and two corresponding welding lugs 3 are welded together to form a welding structure 4. The welding structure 4 is located on the outside of the plug-in body 1 to further avoid the welding from affecting the circuit on the plug-in body 1.

[0064] Metal material is laid on the welding lug 3, and the metal material is welded together with solder. The welding lug 3 is made of the same material as the plug-in end body 1 and the reinforcing handle 2, all of which are made of polyimide film material. By laying metal material on the polyimide film welding lug 3 and welding it with solder, the bonding strength of the welding interface is significantly improved, and the stability of the welding process is optimized, ensuring that the welded structure 4 has higher reliability and durability under mechanical and thermal stress. At the same time, this technical solution simplifies the welding process and improves production efficiency.

[0065] Metal materials can be used to process waste materials such as scrap copper in workshops, realizing the reuse of waste materials and reducing costs.

[0066] Furthermore, the solder is lead-tin solder, silver-tin solder, or lead-free solder. The minimum withstand temperature of lead-tin solder is -40℃, that of silver-tin solder is -65℃, and that of lead-free solder is -50℃. By soldering the plug-in terminal body 1 and the reinforcing handle 2 with the above-mentioned solder, the connection strength between the reinforcing handle 2 and the plug-in terminal body 1 can be guaranteed when plugging and unplugging the flexible circuit board in a low temperature environment below -20℃, preventing the reinforcing handle 2 from falling off.

[0067] In the manufacturing process of the flexible circuit board insertion and removal structure provided in this embodiment, thermosetting adhesive 5 is first laid on one end of the insertion and removal end body 1, and metal materials such as scrap copper are laid on both sides of the thermosetting adhesive 5. Then, the reinforcing handle 2 is placed on top of the thermosetting adhesive 5 and heated to a high temperature of 200℃~250℃, so that one end of the reinforcing handle 2 is bonded to the insertion and removal end body 1 through the thermosetting adhesive 5. Then, the metal materials are soldered to form a welding structure 4 between the reinforcing handle 2 and the insertion and removal end body 1. Finally, it is cut to form the insertion and removal structure of the flexible circuit board.

[0068] The flexible circuit board insertion and removal structure provided in this embodiment has a reinforcing handle 2, one end of which is bonded to the insertion and removal end body 1 with thermosetting adhesive 5 to form an adhesive end 202. A welding structure 4 is provided between the adhesive end 202 and the free end 201. When performing insertion and removal operations, the free end 201 is pulled, and the peeling force between the reinforcing handle 2 and the insertion and removal end body 1 is applied to the welding structure 4. Since the solder of the welding structure 4 is more resistant to low temperatures, the maximum peeling force will not change in a low temperature environment below -20℃, ensuring that the reinforcing handle 2 will not fall off the insertion and removal end body 1.

[0069] Example 3:

[0070] Figure 12 This is a schematic diagram of the insertion and removal structure of the first flexible circuit board provided in Embodiment 3 of this utility model, as shown below. Figure 12 As shown, in the flexible circuit board insertion and removal structure provided in this embodiment, the reinforcing handle 2 is formed by stamping and cutting in the non-wiring area of ​​the insertion and removal end body 1, so that one end of the reinforcing handle 2 is integral with the insertion and removal end body 1, and the other end is a free end 201. Since the reinforcing handle 2 is formed by stamping and cutting in the non-wiring area of ​​the insertion and removal end body 1, it does not require the use of thermosetting adhesive 5 for fixation. Therefore, the maximum peel force between the reinforcing handle 2 and the insertion and removal end body 1 is not affected by ambient temperature, reducing costs, simplifying manufacturing process steps, and improving production efficiency.

[0071] For flexible circuit boards with complex wiring, if the wiring circuit on the plug-in end body 1 occupies a large space, the width of the plug-in end body 1 can be appropriately extended to form a flexible circuit board with an irregular structure. On the premise of ensuring that the wiring circuit is not affected, space is left for the stamping reinforcement handle 2.

[0072] Furthermore, reinforcing structures 7 are provided on both sides of the end where the reinforcing handle 2 connects to the plug-in end body 1. The reinforcing structure 7 can be a strengthening structure formed by welding production waste materials such as scrap copper, that is, welding scrap copper to both sides of the end where the reinforcing handle 2 connects to the plug-in end body 1. The inclusion of the reinforcing structure 7 ensures the connection strength between the reinforcing handle 2 and the plug-in end body 1 when the reinforcing handle 2 is pulled, enabling it to withstand multiple insertions and removals without damage, thus extending its service life.

[0073] The flexible circuit board insertion / removal structure provided in this embodiment can be configured as either a single-layer or double-layer structure for the insertion / removal end body 1. When the insertion / removal end body 1 is configured as a single-layer structure, it only includes a substrate layer 101, and the circuit is evenly distributed on the substrate layer 101. Since the circuit layout requires space, and the reinforcing handle 2 needs to be stamped and cut in the non-wiring area, this is suitable for flexible circuit boards with relatively simple circuit wiring. For flexible circuit boards with particularly complex circuit wiring, the insertion / removal end body 1 can be configured as a double-layer structure, with one layer used for circuit wiring and the other layer used for stamping and cutting to form the reinforcing handle 2. The two layers are connected as one unit without affecting the circuit wiring.

[0074] Figure 13 This is a schematic diagram of the insertion and removal structure of the second flexible circuit board provided in Embodiment 3 of this utility model. Figure 14 This is a side view of the second type of flexible circuit board insertion and removal structure provided in Embodiment 3 of this utility model, as shown. Figure 13 and Figure 14 As shown, the plug-in end body 1 includes a substrate layer 101 and a handle layer 102. No wiring is installed on the handle layer 102. The reinforcing handle 2 is formed by stamping and cutting the handle layer 102. The handle layer 102 is located in the non-wiring area of ​​the substrate layer 101.

[0075] The handle layer 102 and the substrate layer 101 can be fixed with thermosetting adhesive 5. By increasing the adhesion area between the handle layer 102 and the substrate layer 101, the connection strength between the handle layer 102 and the substrate layer 101 is guaranteed, and the reinforcing handle 2 is prevented from falling off due to the reduction of the maximum peel force between the handle layer 102 and the substrate layer 101 in a low temperature environment of -20℃.

[0076] The handle layer 102 and the substrate layer 101 can also be welded, or the handle layer 102 and the substrate layer 101 can be integrally formed to ensure that the connection strength between the handle layer 102 and the substrate layer 101 is not affected by the environment.

[0077] The flexible circuit board insertion and removal structure provided in this embodiment directly punches and cuts the reinforcing handle 2 on the insertion and removal end body 1, eliminating the need for thermosetting adhesive 5 for fixation. As a result, the maximum peel force between the reinforcing handle 2 and the insertion and removal end body 1 is not affected by the ambient temperature, thus reducing costs. At the same time, it simplifies the process and improves production efficiency.

[0078] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flexible circuit board insertion / removal structure, characterized in that, The device includes a plug-in end body (1) and a reinforcing handle (2). The reinforcing handle (2) is integrally formed with the plug-in end body (1) by thermosetting adhesive (5), so that the free end (201) of the reinforcing handle (2) and the plug-in end body (1) connected thereto are bent together toward the side away from the plug-in end body (1); or, the position of the reinforcing handle (2) near the free end (201) is connected to the plug-in end body (1) by a non-adhesive structure.

2. The insertion and removal structure of the flexible circuit board according to claim 1, characterized in that, One end of the reinforcing handle (2) is bonded to the plug-in end body (1) with the thermosetting adhesive (5) to form an adhesive end (202); the plug-in end body (1) is symmetrically provided with connecting ears (11) on both sides, the connecting ears (11) extend from the adhesive end (202) to the free end (201), the connecting ears (11) are bonded to the free end (201) with the thermosetting adhesive (5) and bend together with the free end (201) to the side away from the plug-in end body (1).

3. The insertion and removal structure of the flexible circuit board according to claim 2, characterized in that, The connecting ear (11) is provided with a first bending line (111), and the reinforcing handle (2) is provided with a second bending line (21) corresponding to the first bending line (111). The connecting ear (11) bends along the first bending line (111), and the reinforcing handle (2) bends along the second bending line (21).

4. The insertion and removal structure of the flexible circuit board according to claim 1, characterized in that, The non-bonded structure includes a welded structure (4).

5. The insertion and removal structure of the flexible circuit board according to claim 4, characterized in that, The end of the reinforcing handle (2) away from the free end (201) is bonded to the plug-in end body (1) with the thermosetting adhesive (5) to form an adhesive end (202), and the welding structure (4) is located between the adhesive end (202) and the free end (201).

6. The insertion and removal structure of the flexible circuit board according to claim 5, characterized in that, Welding lugs (3) are provided on both sides of the plug-in end body (1) and on both sides of the reinforcing handle (2), and two corresponding welding lugs (3) are welded together to form the welding structure (4).

7. The insertion and removal structure of the flexible circuit board according to claim 6, characterized in that, Metal material is laid on the welding lug (3), and the metal material is welded by solder. The solder is lead-tin solder, silver-tin solder, or lead-free solder.

8. The insertion and removal structure of the flexible circuit board according to claim 1, characterized in that, The reinforcing handle (2) is formed by stamping and cutting in the non-wiring area of ​​the plug-in end body (1) so that one end of the reinforcing handle (2) is integral with the plug-in end body (1) and the other end is the free end (201).

9. The insertion and removal structure of the flexible circuit board according to claim 8, characterized in that, The reinforcing handle (2) is provided with reinforcing structures (7) on both sides of the end that is connected to the plug-in end body (1).

10. The insertion and removal structure of the flexible circuit board according to claim 8, characterized in that, The plug-in end body (1) includes a substrate layer (101) and a handle layer (102). The reinforcing handle (2) is formed by stamping and cutting the handle layer (102). The handle layer (102) is located in the non-wiring area of ​​the substrate layer (101).

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