Anti-tear flexible circuit board

Abstract

The utility model discloses an anti-tear flexible circuit board, which comprises a circuit board body, the middle part of the circuit board body is sleeved with a detachable protective sleeve, the detachable protective sleeve comprises a lower bottom plate and an upper bottom plate which are hinged with each other, and the middle part of the upper end surface of the lower bottom plate is provided with a circuit board groove. Two sliding grooves are formed in the upper end face of the lower bottom plate, the sliding grooves are located in the two sides of the circuit board groove, the sliding grooves are I-shaped groove bodies, first anti-tearing belts are slidably connected into the sliding grooves, the cross section of each first anti-tearing belt is I-shaped, and a fixing plate is fixedly connected to the left end face of the bottom plate. The front side and the rear side of the right end face of the bottom plate are each fixedly connected with two spring plates, spring grooves are formed in the two opposite surfaces of each spring plate, and a spring is fixedly connected to one surface in each spring groove. By means of the sliding grooves, the first anti-tearing belts, the spring plates, the springs and the spring blocks, the first anti-tearing belts of different specifications can be rapidly replaced, and therefore the applicability of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board equipment technology, and in particular relates to a tear-resistant flexible circuit board. Background Technology

[0002] Flexible printed circuit boards (FPCs), also known as flexible circuit boards or flexographic circuit boards, are highly favored for their excellent properties such as light weight, thinness, and ability to be freely bent and folded. However, in China, the quality inspection of FPCs still mainly relies on manual visual inspection, which is costly and inefficient. With the rapid development of the electronics industry, circuit board designs are becoming increasingly precise and high-density, and traditional manual inspection methods can no longer meet production needs. Automated defect inspection of FPCs has become an inevitable trend in the industry's development.

[0003] A tear-resistant FPC flexible circuit board with existing patent number CN 219697999 U includes a circuit board body, with connecting plates at both ends of the circuit board body. A detachable protective sleeve is fitted in the middle of the circuit board body. The detachable protective sleeve includes a base plate and a cover plate that are hinged to each other. The base plate has a circuit board groove in the middle and a first connecting strip on one side of the base plate with multiple connecting holes. A second connecting strip is provided on one side of the cover plate with multiple connectors that mate with the connecting holes. Tear-resistant strips are provided on both sides of the base plate and both sides of the cover plate. Tear-resistant strips have tear-resistant ribs inside, and one side of the tear-resistant strip has multiple protrusions tightly arranged, with grooves between adjacent protrusions.

[0004] The device in the above document only uses tear-resistant strips on both sides of the detachable protective sleeve to prevent the flexible circuit board from tearing. However, the actual flexible circuit boards have different materials, resulting in different bending conditions. The fixed tear-resistant strips cannot adapt to all flexible circuit boards. Moreover, it only prevents tearing in one direction and lacks heat dissipation for the circuit board. In order to solve the above problems, we propose a tear-resistant flexible circuit board. Utility Model Content

[0005] The purpose of this invention is to provide a tear-resistant flexible circuit board to solve existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a tear-resistant flexible circuit board, comprising a circuit board body, a detachable protective sleeve fitted in the middle of the circuit board body, the detachable protective sleeve comprising two hinged lower base plates and an upper base plate, a circuit board groove provided in the middle of the upper end face of the lower base plate, the shape and size of the circuit board body being adapted to the circuit board groove, the circuit board body and the circuit board groove cooperating with each other, two sliding grooves provided on the upper end face of the lower base plate, the sliding grooves being located on both sides of the circuit board groove, the sliding grooves being I-shaped grooves, a first tear-resistant strip being slidably connected in the sliding grooves, the first tear-resistant strip having an I-shaped cross-section, the shape and size of the sliding grooves being adapted to the first tear-resistant strip, the sliding grooves and the first tear-resistant strip slidingly cooperating, a fixing plate being fixedly connected to the left end face of the base plate, two spring plates being fixedly connected to both the front and rear sides of the right end face of the base plate, the spring plates having openings on both opposite surfaces. The circuit board has a spring groove, with a spring fixedly connected to one surface of the spring groove. A spring block is fixedly connected to the free end of the spring. The shape and size of the spring block are adapted to the spring groove, and the spring block slides in fit with the spring groove. Anti-slip sealing pads are fixedly connected to the left and right sides of the bottom of the circuit board groove. Several heat dissipation holes are opened at the bottom of the circuit board groove. Several connectors are fixedly connected to the rear end face of the upper base plate. Several connection holes are opened on the upper end face of the lower base plate. The upper end of the connector is spherical. The diameter of the connection hole is smaller than the diameter of the connector. The connection hole and the connector cooperate with each other. Two No. 2 anti-tear strips are fixedly connected to the left and right sides of the lower end face of the lower base plate. The cross-section of the two No. 2 anti-tear strips is square. Both the lower base plate and the upper base plate are made of flexible polyethylene material. The No. 1 anti-tear strip in the sliding groove of the lower base plate is opposite in direction to the No. 1 anti-tear strip in the sliding groove of the upper base plate.

[0008] Furthermore, the shape and size of the lower base plate are adapted to the upper base plate, and the lower base plate and the upper base plate cooperate with each other. The structures of the lower base plate and the upper base plate are the same except for the connector and the connecting hole.

[0009] Furthermore, both the No. 1 and No. 2 tear-resistant tapes have the same purpose and structure as the tear-resistant tapes in the prior art.

[0010] This utility model has the following beneficial effects:

[0011] This utility model utilizes a sliding groove and a first anti-tear strip in sliding cooperation. A spring block is fixedly connected to the spring plate in the lower base plate and the right end face of the upper base plate. This locks and limits the first anti-tear strip. At the same time, when different specifications of the first anti-tear strip need to be protected for circuit boards of different specifications, the device can be quickly replaced, thereby improving its applicability.

[0012] The ventilation holes promote air circulation, creating convection or radiation heat dissipation, enhancing heat transfer, and improving heat conduction inside the removable protective sleeve. This allows heat to be transferred to the surface of the removable protective sleeve more quickly, facilitating the dissipation of heat generated on the circuit board during operation. The second anti-tear strap, which is fixedly connected to the outer wall of the removable protective sleeve, enhances the device's lateral anti-tear effect on the circuit board.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a tear-resistant flexible circuit board.

[0016] Figure 2 This is a schematic diagram of a tear-resistant, removable protective sleeve for a flexible printed circuit board (FPC).

[0017] Figure 3 A top view of a tear-resistant, removable protective sleeve for FPC flexible circuit boards;

[0018] Figure 4 for Figure 3 Sectional view of AA.

[0019] The components represented by each number in the attached diagram are listed below: 1. Circuit board body; 2. Detachable protective sleeve; 3. Lower base plate; 4. Circuit board groove; 5. Sliding groove; 6. Tear-resistant tape No. 1; 7. Fixing plate; 8. Spring plate; 9. Spring groove; 10. Spring; 11. Spring block; 12. Anti-slip sealing pad; 13. Heat dissipation hole; 14. Connector; 15. Connecting hole; 16. Tear-resistant tape No. 2; 17. Upper base plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-4 As shown, this utility model is a tear-resistant flexible circuit board, including a circuit board body 1. A detachable protective sleeve 2 is fitted in the middle of the circuit board body 1. The detachable protective sleeve 2 includes two hinged lower base plates 3 and an upper base plate 17. A circuit board groove 4 is provided in the middle of the upper end surface of the lower base plate 3. The shape and size of the circuit board body 1 are adapted to the circuit board groove 4. The circuit board body 1 and the circuit board groove 4 cooperate with each other. Two sliding grooves 5 are opened on the upper end surface of the lower base plate 3. The sliding grooves 5 are located on both sides of the circuit board groove 4. The sliding grooves 5 are I-shaped grooves. A first tear-resistant strip 6 is slidably connected in the sliding groove 5. The first tear-resistant strip 6 has an I-shaped cross-section. The shape and size of the sliding grooves 5 are adapted to the first tear-resistant strip 6. The sliding grooves 5 and the first tear-resistant strip 6 are slidably engaged. A fixing plate 7 is fixedly connected to the left end surface of the base plate 3. Two spring plates 8 are fixedly connected to both the front and rear sides of the right end surface of the base plate 3. Spring grooves 9 are opened on both opposite surfaces of the spring plates 8. A spring 10 is fixedly connected to one surface of the groove 9. A spring block 11 is fixedly connected to the free end of the spring 10. The shape and size of the spring block 11 are adapted to the spring groove 9. The spring block 11 slides with the spring groove 9. Anti-slip sealing pads 12 are fixedly connected to the left and right sides of the bottom of the circuit board groove 4. Several heat dissipation holes 13 are opened at the bottom of the circuit board groove 4. Several connectors 14 are fixedly connected to the rear end face of the upper base plate 17. Several connecting holes 15 are opened on the upper end face of the lower base plate. The upper end of the connector 14 is spherical. The diameter of the connecting hole 15 is smaller than the diameter of the connector 14. The connecting hole 15 and the connector 14 cooperate with each other. Two second-order anti-tear strips 16 are fixedly connected to the left and right sides of the lower end face of the lower base plate. The cross-section of the two second-order anti-tear strips 16 is square. The lower base plate 3 and the upper base plate 17 are both made of flexible polyethylene material. The first-order anti-tear strip 6 set in the sliding groove 5 on the lower base plate 3 is opposite in direction to the first-order anti-tear strip 6 set in the sliding groove 5 on the upper base plate 17.

[0024] In one example, the shape and size of the lower base plate 3 are adapted to the upper base plate 17. The lower base plate 3 and the upper base plate 17 cooperate with each other. The structures of the lower base plate 3 and the upper base plate 17 are the same except for the connector 14 and the connecting hole 15.

[0025] In one instance, both the first tear-resistant tape 6 and the second tear-resistant tape 16 have the same purpose and construction as the tear-resistant tape in the prior art document.

[0026] Please see Figures 1-4 As shown, this embodiment illustrates a method for using a tear-resistant flexible circuit board:

[0027] By utilizing the sliding groove 5 and the first anti-tear strip 6 in sliding cooperation, and utilizing the spring plate 8 which is fixedly connected to the right end face of the lower base plate 3 and the upper base plate 17, a spring block 11 is provided in the spring plate 8 and fixedly connected by a spring 10 to lock and limit the first anti-tear strip 6. At the same time, when it is necessary to protect circuit boards of different specifications, the spring block 11 can be pressed back into the spring groove 9, thereby releasing the locking and limiting of the first anti-tear strip 6, facilitating quick replacement of the first anti-tear strip 6 of different specifications, thereby improving the applicability of the device.

[0028] The heat dissipation holes 13 can promote air circulation, form convection or radiation heat dissipation, enhance the heat transfer effect, improve the heat conduction inside the removable protective sleeve 2, and make the heat transfer to the surface of the removable protective sleeve 2 more quickly, so as to facilitate the dissipation of the heat generated by the circuit board during operation; the second anti-tear tape 16 is fixedly connected to the outer wall of the removable protective sleeve 2 to increase the device's lateral anti-tear effect on the circuit board.

[0029] It should be noted that this utility model is mostly applicable to multi-layer flexible circuit boards with ultra-thick reinforcing plates.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tear-resistant flexible circuit board, comprising a circuit board body (1), characterized in that: The circuit board body (1) is fitted with a detachable protective sleeve (2) in the middle. The detachable protective sleeve (2) includes two hinged lower base plates (3) and an upper base plate (17). The upper end face of the lower base plate (3) is provided with a circuit board groove (4). The upper end face of the lower base plate (3) is provided with two sliding grooves (5). The sliding grooves (5) are located on both sides of the circuit board groove (4). The sliding grooves (5) are I-shaped grooves. A first anti-tear strip (6) is slidably connected in the sliding groove (5). The first anti-tear strip (6) has an I-shaped cross-section. A fixing plate (7) is fixedly connected to the left end face of the base plate (3). Two springs are fixedly connected to the front and rear sides of the right end face of the base plate (3). Spring plate (8), spring grooves (9) are provided on both opposite surfaces of the spring plate (8), spring (10) is fixedly connected to one surface of the spring groove (9), spring block (11) is fixedly connected to the free end of the spring (10), anti-slip sealing pads (12) are fixedly connected to the left and right sides of the bottom of the circuit board groove (4), several heat dissipation holes (13) are provided at the bottom of the circuit board groove (4), several connectors (14) are fixedly connected to the rear end face of the upper base plate (17), several connecting holes (15) are provided on the upper end face of the lower base plate, and two No. 2 anti-tear strips (16) are fixedly connected to the left and right sides of the lower end face of the lower base plate. The cross-section of the two No. 2 anti-tear strips (16) is square.

2. The tear-resistant flexible circuit board according to claim 1, characterized in that, The shape and size of the lower base plate (3) are adapted to the upper base plate (17). The lower base plate (3) and the upper base plate (17) cooperate with each other. The structures of the lower base plate (3) and the upper base plate (17) are the same except for the connector (14) and the connecting hole (15).

3. The tear-resistant flexible circuit board according to claim 1, characterized in that, The shape and size of the circuit board body (1) are adapted to the circuit board groove (4), and the circuit board body (1) and the circuit board groove (4) cooperate with each other.

4. The tear-resistant flexible circuit board according to claim 1, characterized in that, Both the lower base plate (3) and the upper base plate (17) are made of flexible polyethylene material. The first anti-tear strip (6) provided in the sliding groove (5) of the lower base plate (3) is in the opposite direction to the first anti-tear strip (6) provided in the sliding groove (5) of the upper base plate (17).

5. A tear-resistant flexible circuit board according to claim 1, characterized in that, The upper end of the connector (14) is spherical, and the diameter of the connecting hole (15) is smaller than the diameter of the connector (14). The connecting hole (15) and the connector (14) cooperate with each other.

6. A tear-resistant flexible circuit board according to claim 1, characterized in that, The shape and size of the sliding groove (5) are adapted to the first anti-tear strip (6), and the sliding groove (5) and the first anti-tear strip (6) slide together.

7. A tear-resistant flexible circuit board according to claim 1, characterized in that, The shape and size of the spring block (11) are adapted to the spring groove (9), and the spring block (11) slides in conjunction with the spring groove (9).

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