Vehicle-mounted charger provided with NFC reader-writer

Abstract

The utility model provides a vehicle-mounted charger provided with an NFC reader-writer, and belongs to the technical field of vehicle-mounted charging equipment. The vehicle-mounted charger comprises an electricity taking module; one end of the spring wire is connected with the output end of the power taking module; a vehicle-mounted support; the input end of the charging module is connected with the other end of the spring wire, and the charging module is mounted on the vehicle-mounted bracket; one end of the charging wire is provided with a USB-C interface and a lightning interface, and the other end of the charging wire is connected with the output end of the charging module; the four silica gel protective sleeves are respectively arranged at the wire rod end parts of the spring wire and the charging wire in a sleeving manner; the charging module comprises a lower shell, an upper shell, a charging mainboard, an NFC reader-writer, a wireless charging coil, a temperature sensor, a human body sensor, an ambient light sensor, a lamp strip, a key and a two-dimensional code board. The vehicle-mounted charger has the advantages that the use convenience, flexibility, efficiency and durability of the vehicle-mounted charger are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charging equipment technology, and in particular to a vehicle charger equipped with an NFC reader / writer. Background Technology

[0002] In ride-hailing operations, approximately 67% of passengers have temporary charging needs, but due to differences in vehicle configuration standards, there is generally a supply shortage of rear-seat power outlets. With the exponential growth in demand for mobile device charging, the on-board charger, as a core component of on-board power conversion devices, is receiving increasing attention for its application efficiency in public transportation services.

[0003] In the current technology system, vehicle chargers generally obtain 12V / 24V DC power through the cigarette lighter receptacle, output 5V DC power to adapt to mobile terminals through the built-in voltage conversion module, and adopt a fixed charging harness layout, which is commonly found in the device mounting position behind the front seat headrest.

[0004] Most existing shared car chargers use a QR code authentication mechanism, which involves affixing a QR code sticker to the surface of the device. Passengers scan the QR code to access a pre-set link to perform relevant operations. However, this method has the following drawbacks:

[0005] 1. The operation process requires four interactive steps: scanning, redirection, verification, and authorization, which seriously reduces the smoothness of the user experience; 2. Optical recognition is significantly affected by ambient light, resulting in a high failure rate and requiring multiple operations, thus affecting efficiency; 3. Paper QR code carriers are easily affected by mechanical wear and ultraviolet radiation, with an average effective usage period of less than 90 days.

[0006] Therefore, how to provide a car charger equipped with an NFC reader / writer to improve the convenience, flexibility, efficiency, and durability of car chargers has become an urgent technical problem to be solved. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a vehicle charger equipped with an NFC reader / writer, thereby improving the convenience, flexibility, efficiency and durability of the vehicle charger.

[0008] This utility model is implemented as follows: A car charger equipped with an NFC reader / writer includes:

[0009] A power supply module;

[0010] A spring wire, one end of which is connected to the output terminal of the power supply module;

[0011] A car mount;

[0012] A charging module, with its input end connected to the other end of the spring wire, is mounted on the vehicle mount;

[0013] A charging cable with a USB-C port and a Lightning port at one end, and the other end connected to the output of the charging module;

[0014] Four silicone protective sleeves are respectively fitted onto the ends of the spring wire and the charging wire;

[0015] The charging module includes:

[0016] A lower housing is mounted on the vehicle-mounted bracket;

[0017] An upper housing is located at the top of the lower housing and is detachably connected to the lower housing. The front has a button mounting slot and a QR code plate mounting slot.

[0018] A charging motherboard is disposed between the lower housing and the upper housing, with its input end connected to the spring wire and its output end connected to the charging cable;

[0019] An NFC reader / writer is located between the lower housing and the upper housing and is connected to the charging motherboard;

[0020] A wireless charging coil is disposed between the lower housing and the upper housing and is connected to the charging motherboard;

[0021] At least one temperature sensor is disposed between the lower housing and the upper housing and is connected to the charging motherboard;

[0022] A human body sensor is located between the lower housing and the upper housing, with the sensing end passing through the upper housing and connected to the charging motherboard;

[0023] An ambient light sensor is disposed between the lower housing and the upper housing, with the sensing end passing through the upper housing and connected to the charging motherboard;

[0024] A light strip is arranged around the edge of the front of the upper housing and connected to the charging motherboard;

[0025] A button is located in the button mounting slot and connected to the charging motherboard;

[0026] A QR code sign is installed in the QR code sign mounting slot.

[0027] Furthermore, the charging module also includes:

[0028] A locator is disposed between the lower housing and the upper housing and is connected to the charging motherboard;

[0029] A communication module is located between the lower housing and the upper housing and is connected to the charging motherboard.

[0030] Furthermore, the charging module also includes:

[0031] A double-sided film;

[0032] A magnetic iron sheet is adhered to the inside of the lower housing via the double-sided adhesive film.

[0033] Furthermore, the locator is a GPS locator or a BeiDou locator.

[0034] Furthermore, the communication module is at least one of a 4G communication module, a 5G communication module, an NB-IoT communication module, a LoRa communication module, a WIFI communication module, a Bluetooth communication module, or a ZigBee communication module.

[0035] Furthermore, the power supply module includes:

[0036] A power-generating housing with a bottom shape that matches the cigarette lighter;

[0037] A DC-DC module is located inside the power-collecting housing, and its output terminal is connected to one end of a spring wire through the top of the power-collecting housing;

[0038] A negative electrode spring is provided on the outer side of the lower part of the power collection housing and is connected to the negative input terminal of the DC-DC module;

[0039] A positive contact is located at the bottom of the power-collecting housing and is connected to the positive input terminal of the DC-DC module;

[0040] Two USB-A ports are located side-by-side on the top of the power-generating housing and are connected to the output of the DC-DC module.

[0041] Furthermore, the vehicle mount includes:

[0042] A support plate has four symmetrically arranged limiting parts on the front that match the charging module, and a ball head seat on the back.

[0043] A support rod has a clamp at the top and a ball head at the bottom that matches the ball head seat, the ball head being installed inside the ball head seat;

[0044] A nut, rotatably connected to the ball head, is used to lock the support rod.

[0045] Furthermore, the support plate is a metal support plate.

[0046] Furthermore, two through-fixing members are symmetrically provided on the back of the bearing plate.

[0047] Furthermore, the support rod has several winding grooves in its middle section.

[0048] The advantages of this utility model are:

[0049] 1. The system consists of a power supply module, spring wire, vehicle mount, charging module, and charging cable, all connected sequentially. The charging module, mounted on the vehicle mount, includes a charging motherboard, NFC reader / writer, human body sensor, ambient light sensor, LED strip, and QR code sign. These components connect to the charging motherboard, NFC reader / writer, human body sensor, ambient light sensor, and LED strip, respectively. The vehicle charger can directly interact with NFC-tagged mobile phones via the NFC reader / writer, enabling one-touch connection and eliminating the need to open a camera for scanning and navigation. Alternatively, users can scan the QR code on the sign according to their preference. When the charging motherboard detects a passenger via the human body sensor and the ambient light sensor detects that the ambient light brightness is below a preset threshold, it automatically illuminates the LED strip to light the QR code sign, improving recognition success rate. Furthermore, the QR code sign is more resistant to mechanical wear and UV degradation than traditional QR code stickers, significantly enhancing the convenience, flexibility, efficiency, and durability of the vehicle charger.

[0050] 2. By setting the charging motherboard to connect to the charging cable and the wireless charging coil respectively, the charging module can draw power from the power source through the spring wire and the power extraction module. It can be charged via wired charging through the charging cable or wirelessly through the wireless charging coil, thus realizing dual-mode charging to meet the different charging needs of passengers and greatly improving the applicability of the vehicle charger.

[0051] 3. By setting a temperature sensor to monitor the temperature of the vehicle charger, the charging power can be reduced or charging can be stopped when the temperature is too high, thereby greatly improving the safety of using the vehicle charger.

[0052] 4. By setting up a human body sensor, it can automatically detect the approach of a user, triggering automatic wake-up or energy-saving sleep functions to reduce standby power consumption. It can also be linked with the charging motherboard to control the start and stop of charging, improving the safety of use.

[0053] 5. By adding two additional USB-A ports on the power module, the charging needs of multiple devices can be met.

[0054] 6. The combination structure of the ball joint and support rod supports 360° rotation, adapting to different installation environments and usage requirements.

[0055] 7. By setting the support plate as a metal support plate and setting a magnetic iron sheet inside the charging module, the charging module can be magnetically attracted to the support plate by the magnetic iron sheet, which takes into account both the convenience of taking out the charging module and the stability of its placement. In addition, the metal support plate can effectively improve heat dissipation performance.

[0056] 8. By setting up a dual interface design of USB-C + Lightning, it covers the interface standards of mainstream devices, reduces the need for adapters, and greatly improves the user experience.

[0057] 9. By incorporating spring wires, cable tangling can be avoided, effectively improving storage convenience. They are also tensile and bend-resistant, making them suitable for complex wiring scenarios inside vehicles.

[0058] 10. By integrating the communication module and the locator, remote status monitoring and location tracking functions can be realized.

[0059] 11. The separate design of the power acquisition module and the charging module allows for independent replacement or upgrade of components, reducing maintenance costs.

[0060] 12. By setting up a silicone protective sleeve, the bending stress of the wire is effectively relieved, and the wire ends are protected from wear. It is especially suitable for high-vibration conditions in the vehicle environment, thereby greatly improving the durability of the vehicle charger.

[0061] 13. By setting clips and threaded fasteners on the vehicle mount, the installation method of the vehicle mount can be flexibly selected. For example, the vehicle mount can be clamped to the headrest vertical bar of the first row of seats in the vehicle, or the elastic band can be passed through the rear end of the threaded fastener and locked and put on the headrest of the first row of seats for installation, which greatly improves the applicability. By setting a cable winding groove on the vehicle mount, it is convenient to store the charging cable. Attached Figure Description

[0062] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0063] Figure 1 This is one of the structural schematic diagrams of a vehicle charger equipped with an NFC reader / writer according to this utility model.

[0064] Figure 2 This is the second structural schematic diagram of a vehicle charger equipped with an NFC reader / writer according to this utility model.

[0065] Figure 3 This is a front view of a car charger equipped with an NFC reader / writer according to this utility model.

[0066] Figure 4 This is a rear view of a car charger equipped with an NFC reader / writer, according to this utility model.

[0067] Figure 5This is a top view of a car charger equipped with an NFC reader / writer according to this utility model.

[0068] Figure 6 This is a bottom view of a car charger equipped with an NFC reader / writer according to this utility model.

[0069] Figure 7 This is an exploded view of a car charger equipped with an NFC reader / writer according to this utility model.

[0070] Figure 8 This is an exploded view of the charging module of this utility model.

[0071] Figure 9 This is a schematic diagram of the upper shell of this utility model.

[0072] Figure 10 This is a schematic diagram of the negative electrode spring of this utility model.

[0073] Figure 11 This is a circuit block diagram of a car charger equipped with an NFC reader / writer according to this utility model.

[0074] Marker explanation:

[0075] 100-A car charger with an NFC reader / writer, 1-Power extraction module, 2-Spring wire, 3-Car mount, 4-Charging module, 5-Charging cable, 6-Silicone protective cover, 11-Power extraction shell, 12-DC-CDC module, 13-Negative electrode spring, 14-Positive electrode contact, 15-USB-A interface, 31-Carrier plate, 32-Support rod, 33-Nut, 311-Limiting component, 312-Ball head seat, 313-Pass-through fixing component, 321-Clip, 322-Ball head, 323-Wrapping groove 41-Lower housing, 42-Upper housing, 43-Charging motherboard, 44-NFC reader / writer, 45-Wireless charging coil, 46-Temperature sensor, 47-Human body sensor, 48-Ambient light sensor, 491-Light strip, 492-Button, 493-QR code sign, 494-Locator, 495-Communication module, 496-Double-sided film, 497-Magnetic iron sheet, 421-Button mounting slot, 422-QR code sign mounting slot, 51-USB-C interface, 52-Lighting interface. Detailed Implementation

[0076] This utility model provides a vehicle charger 100 equipped with an NFC reader / writer, which solves the problems of existing shared vehicle chargers that mostly use QR code authentication mechanisms. This involves attaching a QR code sticker to the device surface, and passengers scanning the QR code to access a preset link to perform related operations. This process requires four steps: scanning, redirection, verification, and authorization, severely reducing user experience smoothness. Furthermore, optical recognition methods are susceptible to high failure rates due to ambient light levels, and paper QR code carriers are easily affected by mechanical wear and ultraviolet radiation. This invention significantly improves the convenience, flexibility, efficiency, and durability of the vehicle charger.

[0077] The technical solution in this embodiment of the utility model is to solve the above-mentioned problems. The overall idea is as follows: By setting up an NFC reader / writer 44, a human body sensor 47, an ambient light sensor 48, a light strip 491, and a QR code sign 493, the vehicle charger 100 can directly interact with a mobile phone with an NFC tag through the NFC reader / writer 44, eliminating the need to open the camera to scan and jump to the device. Alternatively, users can scan the QR code on the QR code sign 493 to interact according to their personal habits. When the charging motherboard 43 detects the presence of a passenger through the human body sensor 47 and detects that the ambient light brightness is lower than the preset brightness threshold through the ambient light sensor 48, it automatically lights up the light strip 491 to illuminate the QR code sign 493 to improve the recognition success rate. Moreover, the QR code sign 493 is more resistant to mechanical wear and ultraviolet radiation than traditional QR code stickers, thereby improving the convenience, flexibility, efficiency, and durability of the vehicle charger 100.

[0078] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0079] Please refer to Figures 1 to 11 As shown, a preferred embodiment of the present invention, a car charger 100 equipped with an NFC reader / writer, includes:

[0080] A power-taking module 1 is used to draw power from the vehicle's cigarette lighter (not shown) and perform voltage conversion;

[0081] A spring wire 2, one end of which is connected to the output end of the power extraction module 1, is used for power transmission;

[0082] A vehicle mount 3 is used to mount the charging module 4;

[0083] A charging module 4, with its input end connected to the other end of the spring wire 2 and mounted on the vehicle bracket 3, is used to control the operation of the vehicle charger 100;

[0084] A charging cable 5 has a USB-C interface 51 and a Lightning interface 52 at one end, and the other end is connected to the output end of the charging module 4 for connecting a mobile terminal (not shown) through the USB-C interface 51 or the Lightning interface 52 to charge it.

[0085] Four silicone protective sleeves 6 are respectively fitted onto the ends of the spring wire 2 and the charging wire 5 to protect the spring wire 2 and the charging wire 5.

[0086] The charging module 4 includes:

[0087] A lower housing 41 is mounted on the vehicle-mounted bracket 3;

[0088] An upper housing 42 is located at the top of the lower housing 41 and is detachably connected to the lower housing 41. The front side is provided with a button mounting slot 421 and a QR code plate mounting slot 422. The upper housing 42 and the lower housing 41 are used to provide safety protection for the charging module 4.

[0089] A charging motherboard 43 is disposed between the lower housing 41 and the upper housing 42. Its input end is connected to the spring wire 2, and its output end is connected to the charging wire 5. It is used to control the operation of the vehicle charger 100. In specific implementation, any charging motherboard that can perform this function can be selected from the existing technology. It is not limited to any particular model, such as Tongjia Technology LD7575, Jiewat JW7726B, Tiandeyu JD6628, Xintan Micro NDP13701QB, etc. Moreover, the control program is well known to those skilled in the art, which can be obtained by those skilled in the art without creative effort.

[0090] An NFC reader / writer 44 is located between the lower housing 41 and the upper housing 42 and is connected to the charging motherboard 43. It is used to read and write information with the NFC tag (not shown) of the mobile terminal, and thus interact with the mobile terminal.

[0091] A wireless charging coil 45 is disposed between the lower housing 41 and the upper housing 42 and connected to the charging motherboard 43 for wireless charging of the mobile terminal.

[0092] At least one temperature sensor 46 is disposed between the lower housing 41 and the upper housing 42 and connected to the charging motherboard 43, for real-time monitoring of the temperature of the vehicle charger 100, so as to reduce the charging power when the temperature is too high.

[0093] A human body sensor 47 is disposed between the lower housing 41 and the upper housing 42. The sensing end passes through the upper housing 42 and is connected to the charging motherboard 43 for sensing human body.

[0094] An ambient light sensor 48 is disposed between the lower housing 41 and the upper housing 42, with its sensing end passing through the upper housing 42 and connected to the charging motherboard 43, for sensing ambient brightness.

[0095] A light strip 491 is arranged around the edge of the front of the upper housing 42 and connected to the charging motherboard 43 to illuminate the QR code sign 493 and indicate the location of the vehicle charger 100 to the passenger.

[0096] A button 492 is located in the button mounting slot 421 and connected to the charging motherboard 43, and is used to start or stop the charging of the vehicle charger 100, or switch the charging mode.

[0097] A QR code sign 493 is installed in the QR code sign mounting slot 422 for displaying a QR code.

[0098] The charging module 4 also includes:

[0099] A locator 494 is disposed between the lower housing 41 and the upper housing 42 and connected to the charging motherboard 43 for positioning the vehicle charger 100;

[0100] A communication module 495 is located between the lower housing 41 and the upper housing 42 and is connected to the charging motherboard 43 for communication between the vehicle charger 100 and the outside world.

[0101] The charging module 4 also includes:

[0102] A single double-sided film costs 496;

[0103] A magnetic iron sheet 497 is adhered to the inside of the lower housing 41 by the double-sided adhesive sheet 496, so that the charging module 4 can be magnetically attached to the vehicle bracket 3.

[0104] The locator 494 is a GPS locator or a Beidou locator.

[0105] The communication module 495 is at least one of a 4G communication module, a 5G communication module, an NB-IoT communication module, a LoRa communication module, a WIFI communication module, a Bluetooth communication module, or a ZigBee communication module.

[0106] The power supply module 1 includes:

[0107] A power-generating housing 11 with a bottom shape that matches the cigarette lighter;

[0108] A DC-DC module 12 is disposed inside the power-taking housing 11, and its output terminal is connected to one end of the spring wire 2 through the top of the power-taking housing 11 for voltage conversion, that is, modulating the input voltage to the required voltage value;

[0109] A negative electrode spring 13 is disposed on the outer side of the lower part of the power collection housing 11 and is connected to the negative input terminal of the DC-DC module 12;

[0110] A positive contact 14 is located at the bottom of the power-collecting housing 11 and is connected to the positive input terminal of the DC-DC module 12;

[0111] Two USB-A ports 15 are arranged in parallel on the top of the power-collecting housing 11 and connected to the output of the DC-DC module 12 for charging the mobile terminal.

[0112] The vehicle-mounted bracket 3 includes:

[0113] A support plate 31 has four limiting members 311 symmetrically arranged on the front to match the charging module, and a ball head seat 312 on the back.

[0114] A support rod 32 has a clip 321 at its top and a ball head 322 at its bottom that matches the ball head seat 312. The ball head 322 is installed inside the ball head seat 312. In actual use, the clip 321 can be clamped onto the headrest vertical bar (not shown) of the seat (not shown). The angle of the support plate 31 can be flexibly adjusted by the ball head 322 and the ball head seat 312.

[0115] A nut 33 is rotatably connected to the ball head seat 312 for locking the support rod 32, that is, locking or loosening the ball head 322 by tightening or loosening the ball head seat 312.

[0116] The support plate 31 is a metal support plate, so that the magnetic iron sheet 497 can be magnetically attracted and the heat dissipation performance of the vehicle charger 100 can be improved.

[0117] The back of the bearing plate 31 is also symmetrically provided with two through-fixing members 313 for the installation of the vehicle bracket 3.

[0118] The support rod 32 has several winding grooves 323 in the middle, which facilitates the winding and storage of the charging cable 5.

[0119] Working principle of this utility model:

[0120] The power module 4 is inserted into the vehicle's cigarette lighter socket. The clip 321 is then attached to the headrest upright of one row of seats. The charging module 4 is then attached to the vehicle bracket 3 using a magnetic iron piece 497 and limited by the limiting member 311. When the human body sensor 47 does not detect a passenger, the charging motherboard 43 controls the vehicle charger 100 to enter a low-power mode. When the human body sensor 47 detects a passenger, it immediately wakes up and controls the light strip 491 to flash to prompt the passenger to use the device. The passenger takes out their mobile phone and touches the charging module 4. After exchanging information with the NFC reader 44 via the phone's NFC tag, the power output of the charging module 4 is activated. The USB-C interface 51 or Lightning interface 52 of the charging cable 5 is connected to the mobile phone for charging, or the charging module 4 is brought close to the mobile phone for wireless charging.

[0121] In summary, the advantages of this utility model are as follows:

[0122] 1. The system consists of a power supply module, spring wire, vehicle mount, charging module, and charging cable, all connected sequentially. The charging module, mounted on the vehicle mount, includes a charging motherboard, NFC reader / writer, human body sensor, ambient light sensor, LED strip, and QR code sign. These components connect to the charging motherboard, NFC reader / writer, human body sensor, ambient light sensor, and LED strip, respectively. The vehicle charger can directly interact with NFC-tagged mobile phones via the NFC reader / writer, enabling one-touch connection and eliminating the need to open a camera for scanning and navigation. Alternatively, users can scan the QR code on the sign according to their preference. When the charging motherboard detects a passenger via the human body sensor and the ambient light sensor detects that the ambient light brightness is below a preset threshold, it automatically illuminates the LED strip to light the QR code sign, improving recognition success rate. Furthermore, the QR code sign is more resistant to mechanical wear and UV degradation than traditional QR code stickers, significantly enhancing the convenience, flexibility, efficiency, and durability of the vehicle charger.

[0123] 2. By setting the charging motherboard to connect to the charging cable and the wireless charging coil respectively, the charging module can draw power from the power source through the spring wire and the power extraction module. It can be charged via wired charging through the charging cable or wirelessly through the wireless charging coil, thus realizing dual-mode charging to meet the different charging needs of passengers and greatly improving the applicability of the vehicle charger.

[0124] 3. By setting a temperature sensor to monitor the temperature of the vehicle charger, the charging power can be reduced or charging can be stopped when the temperature is too high, thereby greatly improving the safety of using the vehicle charger.

[0125] 4. By setting up a human body sensor, it can automatically detect the approach of a user, triggering automatic wake-up or energy-saving sleep functions to reduce standby power consumption. It can also be linked with the charging motherboard to control the start and stop of charging, improving the safety of use.

[0126] 5. By adding two additional USB-A ports on the power module, the charging needs of multiple devices can be met.

[0127] 6. The combination structure of the ball joint and support rod supports 360° rotation, adapting to different installation environments and usage requirements.

[0128] 7. By setting the support plate as a metal support plate and setting a magnetic iron sheet inside the charging module, the charging module can be magnetically attracted to the support plate by the magnetic iron sheet, which takes into account both the convenience of taking out the charging module and the stability of its placement. In addition, the metal support plate can effectively improve heat dissipation performance.

[0129] 8. By setting up a dual interface design of USB-C + Lightning, it covers the interface standards of mainstream devices, reduces the need for adapters, and greatly improves the user experience.

[0130] 9. By incorporating spring wires, cable tangling can be avoided, effectively improving storage convenience. They are also tensile and bend-resistant, making them suitable for complex wiring scenarios inside vehicles.

[0131] 10. By integrating the communication module and the locator, remote status monitoring and location tracking functions can be realized.

[0132] 11. The separate design of the power acquisition module and the charging module allows for independent replacement or upgrade of components, reducing maintenance costs.

[0133] 12. By setting up a silicone protective sleeve, the bending stress of the wire is effectively relieved, and the wire ends are protected from wear. It is especially suitable for high-vibration conditions in the vehicle environment, thereby greatly improving the durability of the vehicle charger.

[0134] 13. By setting clips and threaded fasteners on the vehicle mount, the installation method of the vehicle mount can be flexibly selected. For example, the vehicle mount can be clamped to the headrest vertical bar of the first row of seats in the vehicle, or the elastic band can be passed through the rear end of the threaded fastener and locked and put on the headrest of the first row of seats for installation, which greatly improves the applicability. By setting a cable winding groove on the vehicle mount, it is convenient to store the charging cable.

[0135] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A car charger equipped with an NFC reader / writer, characterized in that: include: A power supply module; A spring wire, one end of which is connected to the output terminal of the power supply module; A car mount; A charging module, with its input end connected to the other end of the spring wire, is mounted on the vehicle mount; A charging cable with a USB-C port and a Lightning port at one end, and the other end connected to the output of the charging module; Four silicone protective sleeves are respectively fitted onto the ends of the spring wire and the charging wire; The charging module includes: A lower housing is mounted on the vehicle-mounted bracket; An upper housing is located at the top of the lower housing and is detachably connected to the lower housing. The front has a button mounting slot and a QR code plate mounting slot. A charging motherboard is disposed between the lower housing and the upper housing, with its input end connected to the spring wire and its output end connected to the charging cable; An NFC reader / writer is located between the lower housing and the upper housing and is connected to the charging motherboard; A wireless charging coil is disposed between the lower housing and the upper housing and is connected to the charging motherboard; At least one temperature sensor is disposed between the lower housing and the upper housing and is connected to the charging motherboard; A human body sensor is located between the lower housing and the upper housing, with the sensing end passing through the upper housing and connected to the charging motherboard; An ambient light sensor is disposed between the lower housing and the upper housing, with the sensing end passing through the upper housing and connected to the charging motherboard; A light strip is arranged around the edge of the front of the upper housing and connected to the charging motherboard; A button is located in the button mounting slot and connected to the charging motherboard; A QR code sign is installed in the QR code sign mounting slot.

2. The car charger with NFC reader of claim 1, wherein: The charging module also includes: A locator is disposed between the lower housing and the upper housing and is connected to the charging motherboard; A communication module is located between the lower housing and the upper housing and is connected to the charging motherboard.

3. The car charger with NFC reader of claim 1, wherein: The charging module also includes: A double-sided film; A magnetic iron sheet is adhered to the inside of the lower housing via the double-sided adhesive film.

4. The car charger with NFC reader of claim 2, wherein: The locator is a GPS locator or a BeiDou locator.

5. The car charger with NFC reader of claim 2, wherein: The communication module is at least one of the following: 4G communication module, 5G communication module, NB-IoT communication module, LoRa communication module, WIFI communication module, Bluetooth communication module, or ZigBee communication module.

6. The car charger with NFC reader of claim 1, wherein: The power supply module includes: A power-generating housing with a bottom shape that matches the cigarette lighter; A DC-DC module is located inside the power-collecting housing, and its output terminal is connected to one end of a spring wire through the top of the power-collecting housing; A negative electrode spring is provided on the outer side of the lower part of the power collection housing and is connected to the negative input terminal of the DC-DC module; A positive contact is located at the bottom of the power-collecting housing and is connected to the positive input terminal of the DC-DC module; Two USB-A ports are located side-by-side on the top of the power-generating housing and are connected to the output of the DC-DC module.

7. The car charger with NFC reader of claim 1, wherein: The vehicle-mounted bracket includes: A support plate has four symmetrically arranged limiting parts on the front that match the charging module, and a ball head seat on the back. A supporting rod is provided with a clamp at the top end and a ball head matched with the ball head seat at the bottom end, and the ball head is installed in the ball head seat; A screw cap is rotatably connected with the ball head seat and used for locking the supporting rod.

8. The car charger with NFC reader of claim 7, wherein: The bearing plate is a metal bearing plate.

9. The car charger with NFC reader of claim 7, wherein: Two through-fixing members are symmetrically arranged on the back surface of the bearing plate.

10. A car charger equipped with an NFC reader / writer as described in claim 7, characterized in that: The middle part of the supporting rod is provided with a plurality of wire grooves.

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