A silk screen printing flexible circuit with anti-disassembly and anti-drop

Abstract

This utility model discloses a tamper-proof and drop-proof screen-printed flexible circuit, including a first adhesive part, a second adhesive part, and a connecting part connecting the first adhesive part and the second adhesive part. The connecting part is formed by embossing to create a concave-convex structure, resulting in spaced grooves and protrusions on the surface of the connecting part. The first adhesive part and the second adhesive part are arranged along the X direction, and the grooves and protrusions extend along the Y direction. Advantages: By embossing to form several grooves and protrusions on the connecting part, when the POS machine is dropped and the connecting part vibrates, the grooves and protrusions deform to offset the pulling force on the first adhesive part and the second adhesive part, effectively preventing the POS machine from accidentally triggering the anti-tear function after a fall. Simultaneously, the embossing to form grooves and protrusions makes the connecting part wavy, reducing the warpage height after installation and preventing the connecting part from squeezing other components inside the POS machine.

Description

Technical Field

[0001] This utility model relates to the fields of POS machine equipment and communication information equipment, specifically a screen-printed flexible circuit that is tamper-proof and drop-proof. Background Technology

[0002] To ensure the security of POS machines, tamper-proof circuits are installed inside the POS machine to connect the operating module and the storage module. These circuits are designed to prevent theft of funds if the POS machine is forcibly broken. The working principle of the tamper-proof circuits is that when the POS machine is broken, since one end of the tamper-proof circuit is electrically connected to the operating module and the other end is connected to the storage module, the circuit is easily pulled during the break. The tamper-proof circuits are usually made of multiple layers of flexible wires connected by conductive adhesive. When external force is applied, the adjacent wires connected by the adhesive will detach, thereby causing the POS machine to freeze and achieve the protection effect.

[0003] Because the tamper protection circuit connects two different modules, the section between the two modules is taut and suspended. When the POS machine is dropped or shaken due to other impacts, it is prone to vibration, which in turn causes the tamper protection circuit between the two modules to vibrate. This vibration will pull on both ends of the tamper protection circuit, causing adjacent wires connected by glue inside the tamper protection circuit to detach, thus mistakenly triggering the tamper protection function and causing a system crash.

[0004] One current attempt is to lengthen the tamper protection circuit between the two modules to solve the problem of tension in this part of the tamper protection circuit. However, this will cause the tamper protection circuit to be over-folded during assembly, and the folded part of the circuit may be damaged after long-term operation.

[0005] Therefore, it is necessary to provide a screen-printed flexible circuit that is tamper-proof and drop-proof. Summary of the Invention

[0006] This utility model provides a screen-printed flexible circuit that is tamper-proof and drop-proof, effectively solving the problem that collisions in existing POS machines can easily cause the internal tamper-proof circuit to be falsely triggered.

[0007] The technical solution adopted in this utility model is: A tamper-proof and drop-proof screen-printed flexible circuit includes a first adhesive part, a second adhesive part, and a connecting part connecting the first adhesive part and the second adhesive part. The connecting part is formed by embossing to create a concave-convex structure, so that the surface of the connecting part forms grooves and protrusions arranged at intervals. The first adhesive part and the second adhesive part are arranged along the X direction, and the grooves and protrusions extend along the Y direction.

[0008] Furthermore, the number of both the groove and the protrusion is at least one.

[0009] Furthermore, the depth of the groove is equal to the height of the protrusion.

[0010] Furthermore, the groove on one side of the connecting part corresponds to the protrusion on the other side.

[0011] Furthermore, the first adhesive portion, the second adhesive portion, and the connecting portion have the same thickness.

[0012] The beneficial effects of the utility model are as follows: By forming several grooves and protrusions on the connecting part through embossing, when the POS machine falls and causes vibration of the connecting part, the grooves and protrusions formed by embossing deform and offset the pulling on the first and second adhesive parts, effectively preventing the anti-tear function from being accidentally triggered after the POS machine falls. At the same time, the grooves and protrusions formed by embossing make the connecting part wavy, reducing the warping height of the connecting part after installation and preventing the connecting part from squeezing other components inside the POS machine. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a tamper-proof and drop-proof screen-printed flexible circuit provided for an embodiment of this application.

[0014] The markings in the figure are: 1, first adhesive part; 2, second adhesive part; 3, connecting part; 301, groove; 302, protrusion. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, an embodiment of this application provides a tamper-proof and drop-proof screen-printed flexible circuit, including a first adhesive part 1, a second adhesive part 2, and a connecting part 3 connecting the first adhesive part 1 and the second adhesive part 2. The connecting part 3 is formed by embossing to create a concave-convex structure, such that the surface of the connecting part 3 forms grooves 301 and protrusions 302 arranged at intervals. The first adhesive part 1 and the second adhesive part 2 are arranged along the X direction, and the grooves 301 and protrusions 302 both extend along the Y direction.

[0017] In actual use, the first adhesive part 1 and the second adhesive part 2 are respectively bonded to two parts of the POS machine, and the connecting part 3 is suspended after bonding. After the POS machine is installed, the flexible circuit of this application is located inside the POS machine housing. When the POS machine is dropped and causes vibration, the grooves 301 and protrusions 302 of the connecting part 3 generate tensile deformation, thereby reducing the pulling of the connecting part 3 on the first adhesive part 1 and the second adhesive part 2 after vibration, and avoiding the tearing of the two layers of circuit connected by adhesive inside by vibration.

[0018] In the above design, a number of grooves 301 and protrusions 302 are formed on the connecting part 3 by embossing. When the POS machine falls and causes the connecting part 3 to vibrate, the grooves 301 and protrusions 302 formed by embossing deform to offset the pulling on the first adhesive part 1 and the second adhesive part 2, effectively preventing the anti-tear function from being accidentally triggered after the POS machine falls. At the same time, the grooves 301 and protrusions 302 formed by embossing make the connecting part 3 wavy, reducing the warping height of the connecting part 3 after installation and preventing the connecting part 3 from squeezing other components inside the POS machine.

[0019] Specifically, the number of both the groove 301 and the protrusion 302 is at least one.

[0020] In the above design, by setting multiple grooves 301 and protrusions 302, the deformation of the connecting part 3 with multiple grooves 301 and protrusions 302 when subjected to vibration reduces the pulling on the first adhesive part 1 and the second adhesive part 2, and avoids the false triggering of the anti-tear line caused by collision.

[0021] Specifically, the depth of the groove 301 is equal to the height of the protrusion 302.

[0022] In the above design, the depths of the groove 301 and the protrusion 302 are set to be equal, which facilitates the processing of the connecting part 3 in the embossing process.

[0023] Specifically, the groove 301 on one side of the connecting part 3 corresponds to the protrusion 302 on the other side.

[0024] In the above design, the groove 301 and the protrusion 302 correspond to form a wave shape in the connecting part 3. The wave shape can improve the vibration resistance of the connecting part 3 and effectively buffer the wiring after the POS machine is dropped. Specifically, the first adhesive part 1, the second adhesive part 2, and the connecting part 3 have the same thickness.

[0025] In the above design, the first adhesive part 1, the second adhesive part 2, and the connecting part 3 have the same thickness, which facilitates processing and manufacturing.

[0026] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tamper-proof and drop-proof screen-printed flexible circuit, characterized in that: It includes a first adhesive part (1), a second adhesive part (2), and a connecting part (3) connecting the first adhesive part (1) and the second adhesive part (2). The connecting part (3) is formed by compression molding to create a concave-convex structure, so that the surface of the connecting part (3) forms grooves (301) and protrusions (302) arranged at intervals. The first adhesive part (1) and the second adhesive part (2) are arranged along the X direction, and the grooves (301) and protrusions (302) both extend along the Y direction.

2. The tamper-proof and drop-proof screen-printed flexible circuit according to claim 1, characterized in that: The number of both the groove (301) and the protrusion (302) is at least one.

3. The tamper-proof and drop-proof screen-printed flexible circuit according to claim 1, characterized in that: The depth of the groove (301) is equal to the height of the protrusion (302).

4. The tamper-proof and drop-proof screen-printed flexible circuit according to claim 1, characterized in that: The groove (301) on one side of the connecting part (3) corresponds to the protrusion (302) on the other side.

5. The tamper-proof and drop-proof screen-printed flexible circuit according to claim 1, characterized in that: The first adhesive part (1), the second adhesive part (2), and the connecting part (3) have the same thickness.

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