Anti-bending reinforced structure of MI card

Abstract

The anti-bending reinforcing structure comprises an outer layer I, an outer layer II and a middle layer, a reinforcing frame is arranged between the outer layer I and the outer layer II, an opening is formed in the middle of the reinforcing frame, the four edges of the opening are wavy edges, and the middle layer is clamped in a fixing groove in the inner wall of the opening; compared with a traditional MI card structure, according to the MI card in the technical scheme, the reinforcing frame is additionally arranged at the middle layer to protect the outer edge of the middle layer, meanwhile, the situation that the middle layer is completely wrapped, and the using heat dissipation effect of the middle layer is affected can be avoided, gaps between the middle layer and the outer layer I and gaps between the middle layer and the outer layer II are supplemented by additionally arranging the reinforcing protruding strips, and the service life of the MI card is prolonged. And meanwhile, the reinforcing convex strips can also increase the overall rigidity and prevent bending.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of intelligent card, concretely relates to a MI card's anti-bending reinforcing structure. BACKGROUND

[0002] MIFARE card (also called MI card) is a kind of intelligent card technology based on non-contact radio frequency identification (RFID) technology, and the card is widely used in public transportation, access control, identity authentication, electronic wallet and other fields, and is welcomed by global market due to its high security, reliability and ease of use.

[0003] The Chinese patent with the authorization announcement number CN220855686U discloses an anti-bending intelligent card with internal reinforcing structure, which comprises a plastic shell, a top plate provided on the top of the plastic shell, a first reinforcing rod, a T-shaped plate inserted into a plug-in groove provided on the surface of the first reinforcing rod, a connecting block fixed to the end of the first reinforcing rod, a limiting plate provided on the end of the first reinforcing rod, and an opening provided in the plastic shell.

[0004] The above technical solution has the following defects:

[0005] Although it has certain anti-twisting and bending function, its structure is relatively complex, and for the MI card with low price, the use of such detailed and complex (hinged) structure increases the production fund, so a MI card structure with good anti-bending effect is needed to solve the bending problem, and the structure is simple to reduce the waste of funds. UTILITY MODEL CONTENTS

[0006] In view of the above defects, the utility model provides an anti-bending reinforcing structure of MI card, which comprises an outer layer I, an outer layer II and an intermediate layer, a reinforcing frame is arranged between the outer layer I and the outer layer II, an opening is arranged in the middle of the reinforcing frame, the four edges of the opening are wavy edges, and the intermediate layer is clamped in the fixed groove of the inner wall of the opening.

[0007] A plurality of reinforcing convex strips are arranged in the intermediate layer slot of the side face of the outer layer I and the outer layer II.

[0008] Further, the outer layer I and the outer layer II are a printing layer and a substrate layer respectively, and the middle layer is an integrally formed antenna layer and a chip layer, and the outer layer I, the middle layer and the outer layer II are hot-pressed in this order.

[0009] Further, the reinforcing frame comprises symmetrical inner frame I and inner frame II, and the ends of the inner frame I and the inner frame II close to each other are spliced by the protrusions and the grooves respectively.

[0010] Further, the outer surfaces of the outer layer I and the outer layer II are provided with PVC films.

[0011] Further, the end corners of the reinforcing frame are provided with notches.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Compared with the traditional MI card structure, the MI card in the technical scheme adds a reinforcing frame at the middle layer to protect the outer edge of the middle layer, and adds reinforcing protruding strips to supplement the gap between the middle layer and the outer layer I and the outer layer II, and the reinforcing protruding strips can also increase the rigidity of the whole to prevent bending. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is a schematic view of the reinforcing frame in embodiment 2.

[0016] In the drawing: 1, outer layer I; 2, outer layer II; 31, inner frame I; 32, inner frame II; 33, wavy edge; 34, fixed groove; 4, middle layer; 5, middle layer groove; 6, reinforcing protruding strip. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of the utility model, the device of the utility model will be described more fully below with reference to the relevant drawings. The embodiments of the device are shown in the drawings. However, the device can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0018] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0019] Embodiment 1

[0020] As Figure 1 shown, the embodiment provides a folding-resistant reinforcing structure of an MI card, comprising an outer layer I1, an outer layer II2 and an intermediate layer 4, wherein the outer layer I1 and the outer layer II2 are a printing layer and a substrate layer (a traditional PVC material) respectively, the intermediate layer 4 is a welded antenna layer and a chip layer, the outer layer I1, the intermediate layer 4 and the outer layer II2 are heat-pressed in this order, and the outer surfaces of the outer layer I1 and the outer layer II2 are provided with PVC films, which prevent the information layer printed on the outer surfaces of the outer layer I1 and the outer layer II2 from being worn.

[0021] A reinforcing frame for increasing the overall hardness is arranged between the outer layer I1 and the outer layer II2, and the middle part of the reinforcing frame is provided with an opening, so that the intermediate layer inside can be exposed, and the intermediate layer is not fully wrapped for reinforcement, which affects the normal heat dissipation effect. In detail, the reinforcing frame comprises symmetrical inner frame I31 and inner frame II32, and the ends of the inner frame I31 and the inner frame II32 close to each other are respectively spliced by protrusions and grooves (the protrusions and the grooves are in the traditional clamping form, so they are not shown in the drawings), and when installing, the inner frame I31 and the inner frame II32 are inserted into the two ends of the intermediate layer respectively to complete the integral molding operation.

[0022] The four sides of the opening are wavy edges 33, compared with the traditional straight opening, because the wave design introduces periodic fluctuations, increases the effective distribution distance of the cross-sectional area, and significantly improves the value of the moment of inertia, that is, the torsional resistance (rigidity) is better than the straight line design, because the wavy line can disperse stress through complex geometry and improve the moment of inertia of material distribution, thereby increasing the stiffness, and the intermediate layer 4 is clamped in the fixed groove 34 of the inner wall of the opening.

[0023] The intermediate layer groove 5 for placing the reinforcing frame is arranged on the side of the outer layer I1 and the outer layer II2 close to each other, and a plurality of reinforcing protruding strips 6 are arranged at equal distances in the intermediate layer groove 5, which increase the hardness of the intermediate layer groove 5 and prevent it from being folded.

[0024] Embodiment 2

[0025] As Figure 2 shown, the difference between the embodiment 1 and the embodiment 2 is that the end corners of the reinforcing frame are provided with notches, and the corresponding intermediate layer groove 5 is also provided with notches corresponding thereto, which can make the MI card more lightweight, save certain material cost, and have better anti-folding effect than the original rectangle for a specific folding angle (such as the diagonal line of the MI card as the folding line).

[0026] It needs explanation, the structure can be realized in many different forms, and is not limited to the embodiment, any equivalent transformation made by the person skilled in the art by using the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, for example other goods loading and unloading, all contain in the protection scope of the utility model.

Claims

1. A bending-resistant reinforcement structure for an MI card, comprising an outer layer I, an outer layer II, and an intermediate layer, characterized in that: A reinforcing frame is provided between the outer layer I and the outer layer II. The reinforcing frame has an opening in the middle and the four sides of the opening are wavy. The middle layer is snapped into the fixing groove on the inner wall of the opening. The outer layer I and outer layer II have a middle layer groove for placing the reinforcing frame on their side that is close to each other. The middle layer groove has several reinforcing protrusions that are evenly distributed inside.

2. The anti-bending reinforcement structure for an MI card as described in claim 1, characterized in that: The outer layer I and outer layer II are respectively a printing layer and a substrate layer, and the middle layer is an integrally formed antenna layer and chip layer. The outer layer I, the middle layer and the outer layer II are thermo-pressed in this order.

3. The anti-bending reinforcement structure for an MI card as described in claim 1, characterized in that: The reinforcing frame includes symmetrical inner frame I and inner frame II, with the ends of inner frame I and inner frame II close to each other being spliced ​​together by protrusions and grooves respectively.

4. The anti-bending reinforcement structure for an MI card as described in claim 1, characterized in that: Both outer layer I and outer layer II have a PVC film on their outer surfaces.

5. The anti-bending reinforcement structure for an MI card as described in claim 1, characterized in that: The corners of the reinforcing frame are provided with notches.

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