Soft magnetic label with nfc electronic tag

Abstract

The utility model discloses a soft magnetic label with NFC electronic tag belongs to NFC intelligent identification product structure design field, solves the existing NFC label identification fixed, installation is restricted, and the problem of unstable identification and high maintenance cost. It includes by the outside to the inside setting acrylic protective layer, replaceable bottom map card, NFC function layer, magnetic attraction base layer in proper order, NFC function layer is inlayed with NFC label with magnetic conduction protection spare, and the magnetic attraction base layer is soft magnetic sheet structure, can be adsorbed in the iron carrier, acrylic protective layer and magnetic attraction base layer are detachable connection through the buckle, and replaceable bottom map card is the pull -out type structure. The utility model has the advantages of multi -scene adaptation, stable identification, convenient and safe use and low maintenance cost, is applicable to community service, family emergency and a plurality of scenes, has higher practical value and popularization prospect.

Description

Technical Field

[0001] This utility model relates to the field of structural design of NFC smart label products, specifically to an NFC magnetic label with functions of being detachable and replaceable, anti-magnetic interference, and low-light auxiliary recognition. Background Technology

[0002] NFC technology, with its short-range, contactless identification capabilities, has been widely used in various smart identification products. Currently, there are several NFC smart sticker products available:

[0003] The existing technology is a durable NFC smart sticker that is easy to stick. It adopts a multi-layer encapsulation structure including a base plate, an encapsulation layer, and a protective layer. It is fixedly installed by adhesive bonding. Although it has a certain protective performance, the installation position is fixed and cannot be flexibly adjusted. It also does not have a replaceable label layer. At the same time, its adhesive installation method is not suitable for scenarios that require frequent relocation.

[0004] An existing technology includes a smart refrigerator magnet with NFC, which integrates a magnetic block and an NFC tag, and adds a decorative pendant and an LED light strip. However, its NFC tag does not have a dedicated anti-magnetic protection structure, and the label layer is a fixed integrated structure, which cannot change the label content according to the usage scenario. At the same time, the overall structure is not designed for convenient maintenance, and the whole thing needs to be replaced if the parts are damaged.

[0005] Basic NFC soft magnetic labels only have a simple stacked structure of acrylic sheet, base card, base, NFC tag and soft magnetic sheet. They have defects such as lack of low light recognition assistance structure, easy scratching of corners, inconvenience in replacing base card, and NFC tag being susceptible to magnetic field interference, making it difficult to adapt to the needs of multiple usage scenarios.

[0006] In summary, existing NFC tag products generally suffer from poor scenario adaptability, insufficient recognition stability, poor ease of use, and high maintenance costs in their structural design. They cannot meet the usage needs of various scenarios such as community services and home emergencies, and are particularly difficult to adapt to the usage habits of the elderly. Utility Model Content

[0007] In view of this, this utility model addresses the structural deficiencies of existing NFC label products by providing a multifunctional NFC magnetic label. By optimizing the connection method of each layer, adding an anti-magnetic protection structure for the NFC tag, designing a pull-out and replaceable base card, and a low-light recognition auxiliary structure, the label achieves multi-scenario adaptability, stable use, and convenient maintenance.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A soft magnetic label with an NFC electronic tag includes a label body, which, from the outside to the inside, is provided with an acrylic protective layer, a replaceable base card, an NFC functional layer, and a magnetic base layer. The NFC functional layer has an embedded NFC tag, and the magnetic base layer is a soft magnetic sheet structure that can be attracted to the surface of an iron carrier. The acrylic protective layer and the magnetic base layer are detachably connected by a snap-fit ​​structure, and the replaceable base card is fitted into a reserved interlayer between the acrylic protective layer and the NFC functional layer using a pull-out structure.

[0010] Furthermore, the NFC functional layer also includes a magnetic protective component, which is a fully enclosed structure that covers the outside of the NFC tag, and the magnetic protective component and the NFC tag are pressed together as an integral structure.

[0011] Furthermore, the acrylic protective layer has anti-slip and wear-resistant textures on its surface, and a fluorescent sensing ring is embedded in the area corresponding to the NFC tag. The sensing ring has a ring-shaped raised structure.

[0012] Furthermore, a slide rail groove is provided on the inner side of the acrylic protective layer, and sliders that are adapted to the slide rail groove are provided on both sides of the replaceable base card. The replaceable base card can be installed and replaced by sliding the sliders and slide rail grooves.

[0013] Furthermore, the corners of the label body are all chamfered and rounded.

[0014] Furthermore, a buffer rubber pad is fixed to the edge of the magnetic base layer, and the buffer rubber pad has the same thickness as the magnetic base layer and the surfaces of the two are flush.

[0015] Furthermore, the magnetic base layer is provided with a reserved mounting slot for placing the NFC functional layer, and a snap-fit ​​structure is provided between the reserved mounting slot and the NFC tag.

[0016] Furthermore, the locking structure includes a locking elastic sheet fixed to the outer edge of the NFC tag and a locking groove set at the edge of the reserved mounting groove. The locking elastic sheet is a thin spring steel sheet bent into a V shape. One side of the V-shape of the thin spring steel sheet is fixed to the NFC tag, and the other side is bent to form a waist drum shape that is high in the middle and low on both sides.

[0017] Furthermore, the outer surface of the NFC tag is provided with two retrieval slots for removing the NFC tag.

[0018] Furthermore, the buckle structure includes a card slot disposed within the acrylic protective layer and a card strip disposed on the magnetic base layer that engages with the card slot.

[0019] Furthermore, both the magnetic base layer and the front end of the replaceable base card are provided with a take-out handle.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model, through its pull-out replaceable base card structure design, allows for quick replacement of label content according to different usage scenarios. At the same time, the magnetic base can be flexibly attached to various iron carriers, solving the problems of fixed product labels and limited installation positions in existing products.

[0022] 2. By setting a fully enclosed magnetic protective component on the outside of the NFC tag, external magnetic field interference can be effectively isolated. Compared with traditional unprotected NFC tags, the recognition success rate is greatly improved, ensuring the stable use of the tag.

[0023] 3. The fluorescent sensor ring enables rapid positioning of the sensing area in low-light environments. The chamfered rounded corners and cushioning rubber pad design prevent scratches and collisions during use, improving ease of use and safety.

[0024] 4. The snap-on detachable connection structure allows for the individual replacement of damaged base cards and NFC tags, eliminating the need to replace the entire label and significantly reducing long-term maintenance costs. Attached Figure Description

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0026] Figure 1 This is a schematic diagram of the present invention;

[0027] Figure 2 This is the front view of the present invention;

[0028] Figure 3 This is a bottom view of the present invention;

[0029] Figure 4 for Figure 3 A diagram showing the process after removing the replaceable baseplate and magnetic base layer;

[0030] Figure 5 The main view of the replaceable base map card;

[0031] Figure 6 This is the front view of the magnetic base layer;

[0032] Figure 7 This is a bottom view of the magnetic base layer;

[0033] Figure 8 for Figure 6 A schematic diagram after removing the NFC functional layer;

[0034] Figure 9 This is the main view of the NFC functional layer;

[0035] Figure 10 This is a cross-sectional view of the NFC functional layer.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Protective layer; 2-Replaceable base card; 3-NFC functional layer; 4-Magnetic base layer; 5-Anti-slip and wear-resistant texture; 6-Fluorescent sensor ring; 7-Slider; 8-Slide rail groove; 9-NFC tag; 10-Magnetic protective component; 11-Reserved installation slot; 12-Clamping elastic piece; 13-Clamping groove; 14-Removal groove; 15-Buffer rubber pad; 16-Card slot; 17-Card strip; 18-Removal handle. Detailed Implementation

[0038] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0040] like Figure 1-10 As shown, this embodiment discloses a soft magnetic label with an NFC electronic tag, including a label body. The shape of the label body is not limited; it can be rectangular, square, or circular. From the outside to the inside, the label body consists of an acrylic protective layer 1, a replaceable base card 2, an NFC functional layer 3, and a magnetic base layer 4. The structure of each layer works together to achieve multi-functional usage requirements.

[0041] Acrylic protective layer: Made of transparent rigid acrylic sheet, its surface is integrally molded with anti-slip and wear-resistant texture 5, which can improve surface wear resistance and reduce scratch damage; a ring-shaped raised fluorescent sensing mark 6 is embedded in the area corresponding to the NFC tag, which can realize the rapid recognition of the sensing area in the dark environment, making it easy for users to touch accurately; the four corners of the protective layer are all rounded to avoid scratches during use.

[0042] Replaceable base card: Made of thin PVC sheet, with sliders 7 on both sides, which can slide in conjunction with the slide rail groove 8 inside the acrylic protective layer to achieve pull-out installation and replacement. The base card can be replaced without disassembling the entire label, adapting to the marking needs of different scenarios.

[0043] NFC functional layer: includes NFC tag 9 and magnetic protective component 10. The magnetic protective component is made of nickel-zinc ferrite material and is fully enclosed on the outside of the NFC tag. It is pressed together with the NFC tag to effectively isolate the interference of external magnetic fields on the NFC tag and ensure the recognition stability of the NFC tag. The NFC functional layer is embedded in the reserved installation slot 11 of the magnetic base layer, which has strong installation stability.

[0044] To further improve the fixing effect, this embodiment provides a locking structure between the reserved mounting slot 11 and the NFC tag 8. The locking structure includes a locking elastic piece 12 fixed to the outer edge of the NFC tag and a locking groove 13 set at the edge of the reserved mounting slot. The locking elastic piece is made of a thin spring steel sheet. Specifically, the spring steel sheet is bent into a V shape, with one side fixed to the NFC tag and the other side bent to form an inverted V-shaped waist drum shape with a high middle and low sides, which facilitates insertion into the locking groove and can be easily removed under external force. The locking groove extends outward along the reserved mounting slot, which can fix the protruding locking elastic piece to a certain extent, thereby improving its fixing effect.

[0045] To further facilitate operation, this embodiment provides a take-out groove 14 on the outer surface of the NFC tag. The take-out groove is an inwardly extending groove used to take out the NFC tag. To facilitate two-finger operation, this embodiment provides two take-out grooves, thus providing a symmetrical clamping position and saving effort.

[0046] Magnetic base layer: It has a magnetic sheet structure and can be firmly attached to the surface of various iron carriers such as refrigerators and iron doors and windows. Its edge is fixed with a buffer rubber pad 15. The rubber pad has the same thickness as the magnetic base layer and the surface is flush. It can buffer the impact force when the device such as mobile phone is touched, and at the same time avoid the wear caused by hard contact between the label and the carrier surface.

[0047] The acrylic protective layer and the magnetic base layer are reliably engaged and fixed through an anti-detachment snap-fit ​​structure, specifically including a wedge-shaped slot 16 integrally formed on the inner side of the acrylic protective layer and a matching magnetic base layer edge clip 17. The wedge-shaped slot has an opening width of 0.3cm and a depth of 0.2cm, with fine anti-slip textures on the inner wall to improve engagement stability. The clip is a wedge-shaped structure adapted to the slot, 0.2cm thick, with a fitting gap of 0.02cm. The clip is made of ABS plastic and is manufactured using an integral injection molding process with the magnetic base layer to ensure engagement strength. For disassembly, simply pry open the exposed end of the clip to detach it from the slot for easy separation.

[0048] In this embodiment, both the magnetic base layer and the front end of the replaceable base card are provided with a take-out handle 18.

[0049] Specifically, the following concrete examples are provided for the above solutions:

[0050] The label itself is a rectangular structure with sides of 6×8cm, with rounded corners of 0.5cm radius, and an overall thickness of 0.8cm.

[0051] The acrylic protective layer is 0.3cm thick, and the surface has a fine mesh-like texture for anti-slip and wear-resistant coating. The fluorescent sensing ring corresponding to the NFC tag area has a diameter of 3cm and uses long-lasting fluorescent material, which can continuously emit light for more than 8 hours in low-light environments.

[0052] The replaceable base card is 0.1cm thick, and the sliders on both sides are 0.2cm wide, which are precisely matched with the slide rail grooves on the inner side of the acrylic protective layer. It can be pulled out smoothly and there is no looseness after installation. Different patterns and logos can be printed on the base card according to the requirements.

[0053] The magnetic protective component 10 of the NFC functional layer is made of nickel-zinc ferrite material with a thickness of 0.2cm. It is fully enclosed on the outside of the NFC tag and the two are combined into a single structure through a hot-pressing process. The specific hot-pressing process parameters are set as follows: hot-pressing temperature 120℃, hot-pressing pressure 0.8MPa, and holding time 30s, to ensure that the magnetic protective component and the NFC tag are tightly bonded without gaps and have no relative displacement after being embedded in the magnetic base layer mounting groove.

[0054] Specifically, the NFC tags can be selected from the NTAG213 / 215 / 216 series (NXP's mainstream high-frequency NFC tags), which support the 13.56MHz high-frequency band, have a communication distance of 0-10cm, meet the requirement of "stable identification at close range", and have strong compatibility, adapting to the NFC reading function of mainstream Android and iOS phones; this series of tags has the characteristics of anti-tampering and long data retention (up to 10 years or more), making it suitable for long-term use in home or community service scenarios, and its small size (such as NTAG213 size 14×10mm) can be easily fully covered by nickel-zinc ferrite magnetic protective components.

[0055] NFC (Near Field Communication) tags are essentially passive radio frequency identification (RFID) devices. Their core functionality relies on electromagnetic induction coupling to achieve data interaction. Combined with the magnetic shielding design of the solution in question, the specific workflow is as follows:

[0056] This NFC tag has no built-in power supply. When an NFC-enabled device (such as a mobile phone) approaches the tag (within ≤10cm), the phone's NFC module generates a 13.56MHz alternating magnetic field. The tag's built-in coil (antenna) cuts the magnetic field lines to generate an induced current, which, after rectification and voltage regulation, powers the chip inside the tag. After the tag chip is powered on, it establishes near-field coupling with the phone's NFC module through the coil, and transmits the data stored in the tag (such as community service information, elderly person's identity information, etc.) to the phone through load modulation (changing the coil impedance). It can also receive write commands sent by the phone to complete data updates.

[0057] The core function of the nickel-zinc ferrite magnetic protective full-coverage tag is to shield stray magnetic fields in the external environment (such as magnetic interference from ferrous carriers and other electronic devices), ensuring stable electromagnetic induction coupling between the tag and the mobile phone, and avoiding identification failure or data transmission errors due to magnetic field interference.

[0058] The magnetic base layer is a magnetic sheet with a thickness of 0.2cm. The buffer rubber pad at its edge is made of silicone with the same thickness as the magnetic base layer. The two are bonded and fixed together with polyurethane strong adhesive (specific model: PU-200). Before bonding, the bonding surfaces of the magnetic base layer and the rubber pad need to be roughened by grinding (surface roughness Ra≥1.6μm) to ensure that the bonding strength is ≥0.5MPa, effectively preventing the buffer rubber pad from falling off during use.

[0059] In practical use, the label can be attached to the surface of the refrigerator in the home of an elderly person in the community. By pulling out and replacing the base card, magnetic base layer and NFC functional layer, it can be adapted to different service scenarios, making the operation simple and convenient.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A soft magnetic label with an NFC electronic tag, characterized in that, The label body includes, from the outside to the inside, an acrylic protective layer, a replaceable base card, an NFC functional layer, and a magnetic base layer. The NFC functional layer has an embedded NFC tag, and the magnetic base layer is a soft magnetic sheet structure that can be attracted to the surface of an iron carrier. The acrylic protective layer and the magnetic base layer are detachably connected by a snap-fit ​​structure, and the replaceable base card is fitted into the reserved interlayer between the acrylic protective layer and the NFC functional layer using a pull-out structure.

2. The soft magnetic label with an NFC electronic tag according to claim 1, characterized in that, The NFC functional layer also includes a magnetic protective component, which is a fully enclosed structure that covers the outside of the NFC tag, and the magnetic protective component and the NFC tag are pressed together as a single structure.

3. The soft magnetic label with an NFC electronic tag according to claim 1, characterized in that, The acrylic protective layer has anti-slip and wear-resistant textures on its surface, and a fluorescent sensing ring is embedded in the area corresponding to the NFC tag. The sensing ring has a ring-shaped raised structure.

4. The soft magnetic label with an NFC electronic tag according to claim 1, characterized in that, The inner side of the acrylic protective layer is provided with a slide rail groove, and the two sides of the replaceable base card are provided with sliders that are adapted to the slide rail groove. The replaceable base card can be installed and replaced by sliding the sliders and slide rail grooves.

5. The soft magnetic label with an NFC electronic tag according to claim 1, characterized in that, A buffer rubber pad is fixed to the edge of the magnetic base layer. The buffer rubber pad has the same thickness as the magnetic base layer and the surfaces of the two are flush.

6. The soft magnetic label with an NFC electronic tag according to claim 1, characterized in that, The magnetic base layer is provided with a reserved mounting slot for placing the NFC functional layer, and a snap-fit ​​structure is provided between the reserved mounting slot and the NFC tag.

7. The soft magnetic label with an NFC electronic tag according to claim 6, characterized in that, The locking structure includes a locking elastic sheet fixed to the outer edge of the NFC tag and a locking groove set at the edge of the reserved mounting groove. The locking elastic sheet is a thin spring steel sheet bent into a V shape. One side of the V-shape of the spring steel sheet is fixed to the NFC tag, and the other side is bent to form a waist drum shape that is high in the middle and low on both sides.

8. The soft magnetic label with an NFC electronic tag according to claim 7, characterized in that, The outer surface of the NFC tag is provided with two retrieval slots for removing the NFC tag.

9. The soft magnetic label with an NFC electronic tag according to any one of claims 1-8, characterized in that, The buckle structure includes a slot disposed within the acrylic protective layer and a strip disposed on the magnetic base layer that engages with the slot.

10. The soft magnetic label with an NFC electronic tag according to any one of claims 1-8, characterized in that, Both the magnetic base layer and the replaceable base card have a take-out handle at the front end.

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