Chip smart card with high waterproof property

Abstract

This utility model discloses a highly waterproof smart card, including a left shell, with a right shell fixedly connected to one side of the left shell. A protective film is adhered to the outer sides of both the left and right shells. Through holes are provided at the corners of the left shell, right shell, and protective film. An outer thermoforming ring is fixedly installed on one side of the left shell, and an outer sealing ring is fixedly adhered to one side of the outer thermoforming ring. An inner thermoforming ring is fixedly installed on one side of the right shell, and an inner sealing ring is fixedly adhered to one side of the inner thermoforming ring. This utility model, through the outer thermoforming ring, outer sealing ring, inner thermoforming ring, and inner sealing ring, effectively isolates moisture intrusion, preventing sensitive electronic components such as the internal integrated circuit chip and conductive circuits from short-circuiting and burning out due to water contact. This fundamentally ensures the stability and reliability of the card's core functions, preventing data corruption or permanent loss. Furthermore, the inability to allow water penetration also prevents oxidation and rusting of metal contacts and chip pins, and deformation of the plastic substrate due to water absorption.

Description

Technical Field

[0001] This utility model relates to the field of chip smart card technology, specifically a highly waterproof chip smart card. Background Technology

[0002] A smart card is a portable card with a built-in micro-integrated circuit chip. It typically uses PVC, PC, or ABS as the base material and combines metal contacts or a built-in coil antenna to achieve data interaction. It conforms to international standards such as ISO7816 and ISO14443. Its core principle is to store user identity information, keys, and transaction data through the chip. Contact cards require insertion into a terminal and communication is achieved through metal contacts, while contactless cards connect wirelessly to the terminal via electromagnetic induction. Data security is ensured by encryption algorithms such as DES and RSA, as well as a key management system, preventing forgery and information tampering. It combines information storage, encryption, and interactive functions, and is widely used in finance, public services, enterprise management, and healthcare. Compared to traditional magnetic stripe cards, it offers higher security, larger storage capacity, and multi-purpose scalability, making it an intelligent carrier for identity recognition, electronic payment, and data management.

[0003] To this end, China Patent Network published a multi-chip smart card with application number 201821886955.1. The sliding of the slider drives the sliding of the connecting rod, thereby driving the movement of the limiting block, which facilitates the installation and removal of the smart chip, makes it easy to replace smart chips in different fields, and facilitates multiple uses of one card. The elastic sheet installed inside the first groove ensures full contact between the metal block and the metal sheet, preventing incomplete contact from affecting the use of the smart chip. The through hole facilitates the hanging of the smart card.

[0004] Although current smart cards on the market meet users' needs to a certain extent, they still have certain shortcomings in use. Specifically, the internal integrated circuit chip and conductive circuits of existing smart cards are sensitive to moisture. Moisture intrusion can easily cause short circuits, instantly burning out the chip or circuits, causing the card to completely lose its responsiveness. This can result in functional failures such as no feedback when swiping the card, payment failure, and inability to recognize access control functions. Even if not immediately damaged, intermittent malfunctions can occur due to circuit corrosion. Based on this, this invention designs a highly waterproof smart card to solve the above problems. Utility Model Content

[0005] This invention provides a highly waterproof smart card, which can effectively solve the problem mentioned in the background art that existing smart cards are sensitive to moisture in actual use. Moisture intrusion can easily cause short circuits, instantly burn out the chip or circuits, and make the card completely unresponsive, resulting in functional failures such as no feedback when swiping the card, payment failure, and inability to recognize access control functions. Even if not immediately damaged, intermittent failures may occur due to circuit corrosion.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a highly waterproof chip smart card, including a left shell, a right shell fixedly connected to one side of the left shell, a protective film jointly bonded to the outer sides of the left and right shells, and through holes opened at the corner positions of the left shell, the right shell, and the protective film.

[0007] Preferably, an outer thermoplastic ring is fixedly installed on one side of the left shell, and an outer sealing ring is fixedly bonded to one side of the outer thermoplastic ring; an inner thermoplastic ring is fixedly installed on one side of the right shell, and an inner sealing ring is fixedly bonded to one side of the inner thermoplastic ring.

[0008] Preferably, the four corners of the left and right shells are rounded.

[0009] Preferably, the outer side of the outer heat-sealing ring is slidably connected to the inner side of the right shell, and the outer side of the outer sealing ring is snapped into connection with the inner side of the right shell.

[0010] Preferably, the outer side of the inner heat-sealing ring is slidably connected to the inner side of the left shell, and the outer side of the inner sealing ring is snapped into connection with the inner side of the left shell.

[0011] Preferably, both the left and right shells have slots on their inner sides, and a chip is engaged inside the slots. Coils are fixedly connected to both sides of the chip.

[0012] Preferably, grooves are provided inside the left and right shells at the positions corresponding to the outer sides of the coils.

[0013] Preferably, the coil is located in the inner region of the inner heat-sealing ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: By using an outer heat-sealing ring, an outer sealing ring, an inner heat-sealing ring, and an inner sealing ring, it can effectively isolate moisture intrusion, preventing sensitive electronic components such as internal integrated circuit chips and conductive lines from being short-circuited and burned out due to water contact. This ensures the stability and reliability of the card's core functions from the root, preventing data corruption or permanent loss. In addition, the inability of moisture to penetrate can also prevent metal contacts and chip pins from oxidizing and rusting, as well as plastic substrates from absorbing water and deforming, significantly reducing the probability of failures such as poor contact and significantly extending the card's service life. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the through hole opening structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the inner heat-sealing ring of this utility model; Figure 4 This is a schematic diagram of the chip body mounting structure of this utility model; The following are the labels in the diagram: 1. Left shell; 2. Right shell; 3. Protective film; 4. Through hole; 5. Outer thermoplastic ring; 6. Outer sealing ring; 7. Inner thermoplastic ring; 8. Inner sealing ring; 9. Slot; 10. Chip body; 11. Coil. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Example: Figure 1-4 As shown, this utility model provides a technical solution: a highly waterproof chip smart card, including a left shell 1, a right shell 2 fixedly connected to one side of the left shell 1, rounded corners at the four corners of the left shell 1 and the right shell 2, a protective film 3 bonded to the outer sides of the left shell 1 and the right shell 2, and through holes 4 at the corners of the left shell 1, the right shell 2 and the protective film 3.

[0019] An outer thermofused ring 5 is fixedly installed on one side of the left shell 1. The outer side of the outer thermofused ring 5 is slidably connected to the inner side of the right shell 2, which can limit the movement direction of the outer thermofused ring 5. An outer sealing ring 6 is fixedly bonded to one side of the outer thermofused ring 5. The outer side of the outer sealing ring 6 is snapped to the inner side of the right shell 2, which can seal the connection between the left shell 1 and the right shell 2. An inner thermofused ring 7 is fixedly installed on one side of the right shell 2. The outer side of the inner thermofused ring 7 is slidably connected to the inner side of the left shell 1, which can limit the movement direction of the inner thermofused ring 7. An inner sealing ring 8 is fixedly bonded to one side of the inner thermofused ring 7. The outer side of the inner sealing ring 8 is snapped to the inner side of the left shell 1, which can seal the connection between the left shell 1 and the right shell 2.

[0020] Both the left shell 1 and the right shell 2 have slots 9 on their inner sides. Chip bodies 10 are snapped into the inside of the slots 9. Coils 11 are fixedly connected to both sides of the chip bodies 10. Corresponding to the outer position of the coils 11, wire grooves are provided inside the left shell 1 and the right shell 2 to limit the position of the coils 11. The coils 11 are located in the inner area of ​​the inner heat-fused ring 7, which can protect the coils 11.

[0021] The operator moves coil 11 so that it passes through the inside of the left shell 1, thus defining the position of coil 11. Then, the operator moves chip body 10 so that it engages with the slot 9 inside the left shell 1 and right shell 2. Next, the operator moves the left shell 1. During this movement, the left shell 1 is fixedly connected to the outer thermofused ring 5 on one side, allowing the position of the outer thermofused ring 5 to move. During this movement, the outer side of the outer thermofused ring 5 is slidably connected to the inside of the right shell 2, thus defining the direction of movement of the outer thermofused ring 5. At this point, the outer thermofused ring 5 is fixedly connected to the outer sealing ring 6 on one side, allowing the position of the outer sealing ring 6 to move, thus enabling the outer sealing ring 6 to engage with the inside of the right shell 2. At this point, the right shell 2... The outer side of the side-fixed inner hot melt ring 7 is slidably connected to the inner side of the left shell 1, which can limit the movement direction of the inner hot melt ring 7. At this time, the inner hot melt ring 7 is fixedly connected to the inner sealing ring 8 on one side, which can move the position of the inner sealing ring 8, so that the inner sealing ring 8 can be snapped into the inner side of the left shell 1. Finally, the left shell 1, right shell 2 and protective film 3 can be pressed together by the lamination equipment. During the pressing process, the outer hot melt ring 5 and inner hot melt ring 7 melt together, which can bond the connection between the left shell 1 and right shell 2. At the same time, the outer sealing ring 6 and inner sealing ring 8 can seal the connection between the left shell 1 and right shell 2. Finally, the protective film 3 is bonded to the outer side of the left shell 1 and right shell 2, which can protect and seal the outer layer of the left shell 1 and right shell 2.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A highly waterproof smart card, comprising a left shell (1), characterized in that: The left shell (1) is fixedly connected to the right shell (2) on one side. The left shell (1) and the right shell (2) are bonded together with a protective film (3). The left shell (1), the right shell (2) and the protective film (3) are provided with through holes (4) at the corners of one side.

2. The highly waterproof smart card according to claim 1, characterized in that, An outer heat fusion ring (5) is fixedly installed on one side of the left shell (1), and an outer sealing ring (6) is fixedly bonded to one side of the outer heat fusion ring (5). An inner heat fusion ring (7) is fixedly installed on one side of the right shell (2), and an inner sealing ring (8) is fixedly bonded to one side of the inner heat fusion ring (7).

3. A highly waterproof smart card according to claim 1, characterized in that, The left shell (1) and the right shell (2) are all provided with rounded corners at the four corners.

4. A highly waterproof smart card according to claim 2, characterized in that, The outer side of the outer heat-melting ring (5) is slidably connected to the inner side of the right shell (2), and the outer side of the outer sealing ring (6) is snapped into the inner side of the right shell (2).

5. A highly waterproof smart card according to claim 2, characterized in that, The outer side of the inner heat-sealing ring (7) is slidably connected to the inner side of the left shell (1), and the outer side of the inner sealing ring (8) is snapped to the inner side of the left shell (1).

6. A highly waterproof smart card according to claim 1, characterized in that, The inner sides of the left shell (1) and the right shell (2) are provided with slots (9), and the chip body (10) is snapped into the inner side of the slots (9). Coils (11) are fixedly connected to both sides of the chip body (10).

7. A highly waterproof smart card according to claim 6, characterized in that, The left shell (1) and right shell (2) are both provided with wire grooves at the positions corresponding to the outer side of the coil (11).

8. A highly waterproof smart card according to claim 6, characterized in that, The coil (11) is located in the inner region of the inner heat-fused ring (7).

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