A mobile phone protective case with NFC powered LED lighting
By integrating an NFC power supply module and LED beads into a mobile phone case, the problems of limited functionality and complex, power-consuming nighttime lighting in existing mobile phone cases are solved, achieving a convenient and environmentally friendly lighting effect with broad market prospects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN VITA FUTURE TECHNOLOGY CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-29
AI Technical Summary
Existing mobile phone cases have limited functionality, complex and power-consuming nighttime lighting operation, and insufficient application of NFC technology in mobile phone accessories, failing to form a complete smart hardware interaction system.
It combines an NFC power supply module with LED beads, using electromagnetic energy generated by the NFC function to drive the LED beads to emit light, simplifying operation and achieving convenient lighting. It is designed as a ring array for uniform and beautiful light effect.
It enables convenient lighting without the need for additional batteries, simplifies operation, conforms to the trend of environmental protection and energy conservation, and has broad market prospects and practical value.
Smart Images
Figure CN224305805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic decoration and intelligent interaction technology, specifically to a mobile phone protective case with NFC-powered LED lighting. Background Technology
[0002] Current mobile phone cases are mainly made of three basic materials: silicone, plastic, and metal. Silicone dominates the market due to its excellent cushioning properties, plastic is known for its lightweight design, and metal focuses on enhancing the overall feel. The functional design of these products is generally limited to basic aspects such as drop protection, scratch protection, and aesthetic appeal, with functional innovation stagnating for a long time. In nighttime use scenarios, users need to perform multiple steps, including unlocking the device, pulling down the control center, and long-pressing the flash icon, to activate the lighting function. Actual testing showed that 10 minutes of continuous flash illumination on an iPhone 13 consumes approximately 5% of its battery.
[0003] Currently, the NFC technology application ecosystem is mainly concentrated in basic scenarios such as mobile payment (such as Apple Pay), file transfer (such as Android Beam), and access control simulation. In the field of mobile phone accessories, only a very small number of brand-specific accessory recognition functions have been realized, and a complete smart hardware interaction system has not yet been formed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model discloses a mobile phone protective case with NFC-powered LED lighting. By enabling the NFC function of the mobile phone, the electromagnetic energy generated by the NFC chip is used to control the on / off state of the LED light, thereby achieving a convenient lighting effect.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model provides a mobile phone case with NFC-powered LED lighting, including a mobile phone case, an NFC wireless power supply module, an NFC wireless power supply circuit, and an LED light bead connected to the NFC wireless power supply circuit via a mechanical switch.
[0007] Furthermore, the NFC wireless power supply circuit includes an NFC chip and an NFC coil.
[0008] Furthermore, the NFC chip is connected to the NFC coil to receive radio frequency signals emitted by external NFC devices and convert the radio frequency signals into electrical energy to power the LED beads.
[0009] Furthermore, the LED beads are located at the edge of the phone case, and there are multiple LED beads arranged in a ring array, so that the phone case can emit uniform and beautiful light when illuminated.
[0010] Furthermore, the phone case also includes a control module, which is connected to the NFC wireless power supply circuit and the LED beads, and is used to control the on / off state and brightness adjustment of the LED beads.
[0011] Furthermore, the protective shell body is a silicone protective shell body or a soft rubber protective shell body.
[0012] Furthermore, the mechanical switch is a sliding or pressing micro switch.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention ingeniously combines NFC wireless power supply technology with LED lighting functionality to develop a novel mobile phone case lighting device. The biggest advantage of this device is that it requires no additional battery power; users can easily operate it with simple controls. Its convenience not only greatly benefits users but also aligns with the current trend of sustainable development due to its environmentally friendly and energy-saving characteristics. Furthermore, considering market demand and user experience, this lighting device is designed with simplicity and aesthetics in mind, making it easy to integrate into various mobile phone cases. Therefore, it has a very broad market prospect and significant practical value. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0016] Figure 1 This is a schematic diagram of the overall structure of the mobile phone protective case with NFC-powered LED lighting function according to this utility model.
[0017] Figure 2 This is a schematic diagram of the PCB circuit structure of this utility model. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0019] In one embodiment, such as Figures 1 to 2 As shown, the mobile phone protective case of this utility model includes a main body shell (1), inside which a PCB circuit board (2) is embedded. The PCB circuit board (2) includes an NFC coil (3), an NFC chip (4), an LED bead (5), and a mechanical switch (6). When the mechanical switch (6) is closed and the mobile phone is brought close with its NFC function enabled, the NFC chip (4) receives electromagnetic field energy through the NFC coil (3), converts it, and drives the LED bead (5) to emit light, thus achieving convenient lighting; when the switch (6) is opened, the LED bead (5) is turned off, and the lighting stops.
[0020] The PCB circuit board (2) adopts a four-layer flexible substrate structure, in which the second layer is set with a copper NFC coil (3) with serpentine traces, a line width of 0.15mm, a spacing of 0.1mm, and a total inductance of 3.2μH. The NFC chip (4) is an ST25TV series high-frequency chip, whose rectifier circuit includes a bridge rectifier and an energy storage capacitor bank. When a 13.56MHz RF signal is received, a 3.3V regulated output can be established within 50ms. Twelve 2835 packaged LED beads (5) set at the corner of the housing form a ring light strip. The operating current of each LED bead is controlled at 15mA, and five levels of brightness adjustment are achieved through a PWM dimming circuit.
[0021] In a preferred embodiment, the control module integrates a photosensor (7), which automatically activates standby mode when the ambient illuminance is below 10 lux. In actual operation, after the user slides the mechanical switch (6) to the ON position and brings the phone within 30mm of NFC reading / writing devices such as subway turnstiles and POS terminals, the LED light strip exhibits a breathing-style gradient effect. Experimental data shows that under the NFC field strength of the iPhone 14 Pro Max, the system can continuously output 18 lm of luminous flux for 120 seconds.
[0022] In another embodiment, the PCB circuit board (2) is covered with a 0.1mm thick optical-grade silicone diffuser layer (8), which has a light transmittance of 92% and an IP67 protection rating. The mechanical switch (6) adopts a magnetic latching relay structure, which can generate tactile feedback when switching states, and has an operating life of more than 100,000 cycles. For curved models, the NFC coil (3) adopts a segmented design, with six independent sub-coils connected in series through vias to ensure that the electromagnetic conversion efficiency remains at 98% even under a bending radius of 5mm.
[0023] When users need to expand functionality, they can write instruction codes through the NDEF data area of the NFC chip (4) to switch light modes. For example, writing the hexadecimal instruction "0x1F" can activate the SOS distress strobe mode, and writing the instruction "0x2A" can start the music rhythm mode. At this time, the audio signal collected by the mobile phone microphone is converted by FFT and then drives the LED light strip to achieve the spectrum visualization effect.
[0024] In summary, this invention cleverly combines NFC wireless power supply technology with LED lighting functionality in an innovative way, thus developing a novel mobile phone case lighting device. The biggest feature of this device is that it does not rely on any additional battery power; users can easily use it with simple operation. Its convenience not only brings great ease to users, but also aligns with the current trend of sustainable development due to its environmentally friendly and energy-saving characteristics. Furthermore, considering market demand and user experience, this lighting device is designed with simplicity and aesthetics in mind, making it easy to integrate into various mobile phone cases. Therefore, it has a very broad market prospect and significant practical value.
[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A mobile phone case with NFC-powered LED lighting, comprising a mobile phone case, characterized in that, The phone case is equipped with an NFC wireless power supply module, which includes an NFC wireless power supply circuit. The NFC wireless power supply circuit is connected to LED beads through a mechanical switch.
2. The mobile phone protective case with NFC-powered LED lighting according to claim 1, characterized in that, The NFC wireless power supply circuit includes an NFC chip and an NFC coil.
3. The mobile phone protective case with NFC-powered LED lighting according to claim 2, characterized in that, The NFC chip is connected to the NFC coil and is used to receive radio frequency signals emitted by external NFC devices and convert the radio frequency signals into electrical energy to provide power for the LED beads.
4. The mobile phone protective case with NFC-powered LED lighting according to claim 1, characterized in that, The LED beads are located at the edge of the phone case, and there are multiple LED beads arranged in a ring array, so that the phone case can emit uniform and beautiful light when illuminated.
5. The mobile phone protective case with NFC-powered LED lighting according to claim 1, characterized in that, The phone case also includes a control module, which is connected to the NFC wireless power supply circuit and the LED beads, and is used to control the on / off state and brightness adjustment of the LED beads.
6. The mobile phone protective case with NFC-powered LED lighting according to claim 5, characterized in that, The phone case is a silicone case or a soft rubber case.
7. The mobile phone protective case with NFC-powered LED lighting according to claim 1, characterized in that, The mechanical switch is a sliding or pressing micro switch.