Vehicle-mounted charger with replaceable advertising board
By integrating human body sensors and replaceable billboards into the vehicle charger, the problems of limited functionality and inconvenient display and promotion of traditional vehicle chargers are solved, improving user experience and functionality, and supporting charging of multiple devices and remote monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUZHOU DIAND TECHNOLOGY CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional car chargers have limited functionality, cannot sense whether there are passengers in the back seat, cannot notify rear passengers when to use them, and the promotional content is inconvenient to change, resulting in a poor user experience.
Design a vehicle charger with a replaceable advertising board, comprising a power supply module, a spring wire, a vehicle bracket, a charging module, and a charging cable. The charging module contains a human body sensor, a speaker, a QR code sign, and an advertising board. The human body sensor automatically alerts the user when a passenger is detected. The advertising board can be flexibly replaced. The charging module is attached to the vehicle bracket by a magnetic iron sheet.
It enables automatic reminders for passengers to use the charger, supports flexible replacement of advertising boards, improves the functionality and user experience of the vehicle charger, meets the charging needs of multiple devices, reduces cable tangling, supports remote monitoring and positioning, and adapts to different installation environments.
Smart Images

Figure CN224164645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle charging equipment technology, and in particular to a vehicle charger with a replaceable advertising board. Background Technology
[0002] As an on-board power conversion device, the core function of a vehicle charger is to obtain power from the vehicle's cigarette lighter socket and provide charging services for mobile terminal devices (such as smartphones and tablets). For example, many ride-hailing vehicles have low configurations, with insufficient rear charging ports, making it difficult for passengers to recharge their devices. Furthermore, the proportion of passengers carrying charging equipment on short trips is relatively low, highlighting the urgent need for standardized power supply facilities to improve the service experience. When on-board chargers are used in ride-hailing vehicles, they can provide charging services for passengers' mobile phones, effectively reducing passengers' battery anxiety.
[0003] When on-board chargers are used in ride-hailing vehicles, for the convenience of passengers, the charger body is generally located near the rear seats, such as behind the headrests of a row of seats. One end of the charger body is connected to the vehicle's cigarette lighter to draw power, and the other end is equipped with a charging cable to provide charging for passengers.
[0004] However, traditional car chargers only have the function of charging, which is limited. For example, they cannot sense whether there are passengers in the back seat or notify rear passengers that they can use the car charger to charge. In addition, car chargers need to display promotional content and need to be changed periodically. The traditional method is to stick a display leaflet on the body of the car charger. When the display content needs to be changed, the display leaflet has to be torn off and re-stitched. This not only easily leaves glue residue on the body, but the display leaflet is also easy to tear or lose its stickiness, which is not conducive to reuse. As a result, the overall user experience of the car charger is not good.
[0005] Therefore, how to provide a vehicle charger with a replacement billboard to improve the functionality of the vehicle charger has become an urgent technical problem to be solved. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to provide a vehicle charger with a replaceable advertising board, thereby improving the functionality of the vehicle charger.
[0007] This utility model is implemented as follows: a vehicle charger equipped with a replaceable advertising board, comprising:
[0008] A power supply module;
[0009] A spring wire, one end of which is connected to the output terminal of the power supply module;
[0010] A car mount;
[0011] A charging module, with its input end connected to the other end of the spring wire, is mounted on the vehicle mount;
[0012] A charging cable has a first charging interface and a second charging interface at one end, and the other end is connected to the output end of the charging module.
[0013] The charging module includes:
[0014] A lower housing is mounted on the vehicle-mounted bracket;
[0015] An upper housing is located at the top of the lower housing and is detachably connected to the lower housing. The front of the upper housing has a button mounting slot, a QR code plate mounting slot, and an advertising board mounting slot. The inner ring of the advertising board mounting slot is provided with several female buckles.
[0016] 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;
[0017] A speaker is located between the lower housing and the upper housing and is connected to the charging motherboard;
[0018] 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;
[0019] A switch button is located in the button mounting slot and is connected to the charging motherboard;
[0020] A QR code holder;
[0021] A QR code sign is installed in the QR code sign mounting slot via the QR code bracket;
[0022] A billboard has several male buckles around its bottom edge and a groove at its end that matches the shape of the billboard mounting groove. It is installed in the billboard mounting groove by means of the male and female buckles.
[0023] Furthermore, the charging module also includes:
[0024] A double-sided film;
[0025] A magnetic iron sheet is adhered to the inside of the lower housing via the double-sided adhesive film.
[0026] Furthermore, both the double-sided film and the magnetic iron sheet are circular.
[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 locator is a GPS locator or a BeiDou locator.
[0031] Furthermore, the communication module is at least one of the following: 3G communication module, 4G communication module, 5G communication module, NB-IoT communication module, LoRa communication module, WIFI communication module, Bluetooth communication module, or ZigBee communication module.
[0032] Furthermore, the power supply module includes:
[0033] A power-generating housing with a bottom shape that matches the cigarette lighter;
[0034] 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;
[0035] 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;
[0036] 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;
[0037] 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.
[0038] Furthermore, the vehicle mount includes:
[0039] 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.
[0040] A clip, with a ball head at one end that matches the ball head seat, the ball head being installed inside the ball head seat;
[0041] A nut, rotatably connected to the ball head, is used to lock the clamp.
[0042] Furthermore, the support plate is a metal support plate.
[0043] Furthermore, the first charging port is a USB-C port; the second charging port is a Lightning port.
[0044] The advantages of this utility model are:
[0045] 1. By setting up a power supply module, spring wire, vehicle mount, charging module, and charging cable, which are connected sequentially, the charging module is installed on the vehicle mount. The charging module is equipped with a human body sensor, speaker, QR code sign, and advertising board. After the charging module's main board detects the presence of a human body through the human body sensor, it can activate the speaker to play a preset audio to provide prompts, such as prompts to use the vehicle charger or that the phone has been left behind. The QR code sign can guide users to preset links. By setting male and female buckles and grooves on the advertising board, and the inner ring of the advertising board mounting groove on the upper shell of the charging module has several female buckles, the advertising board can be flexibly disassembled and replaced through the male and female buckles and grooves, thereby greatly improving the functionality and user experience of the vehicle charger.
[0046] 2. 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.
[0047] 3. By adding two additional USB-A ports on the power module, the charging needs of multiple devices can be met.
[0048] 4. The combination structure of the ball joint and the clip supports 360° rotation, adapting to different installation environments and usage requirements.
[0049] 5. By setting the support plate to 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.
[0050] 6. 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.
[0051] 7. By incorporating spring wires, cable tangling can be avoided, effectively improving storage convenience.
[0052] 8. By integrating the communication module and the locator, remote status monitoring and location tracking functions can be realized. Attached Figure Description
[0053] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0054] Figure 1 This is one of the structural schematic diagrams of a vehicle charger with a replaceable advertising sign according to this utility model.
[0055] Figure 2 This is the second structural schematic diagram of a vehicle charger with a replaceable advertising sign according to this utility model.
[0056] Figure 3 This is a front view of a vehicle charger with a replaceable advertising sign according to this utility model.
[0057] Figure 4 This is a rear view of a vehicle charger with a replaceable advertising sign according to this utility model.
[0058] Figure 5 This is a top view of a vehicle charger with a replaceable advertising sign according to this utility model.
[0059] Figure 6 This is a bottom view of a vehicle charger with a replaceable advertising board according to this utility model.
[0060] Figure 7 This is an exploded view of a vehicle charger with a replaceable advertising board according to this utility model.
[0061] Figure 8 This is an exploded view of the charging module of this utility model.
[0062] Figure 9 This is a schematic diagram of the upper shell of this utility model.
[0063] Figure 10 This is a schematic diagram of the negative electrode spring of this utility model.
[0064] Figure 11 This is a circuit diagram of a vehicle charger with a replaceable advertising sign according to the present invention.
[0065] Marker explanation:
[0066] 100 - A vehicle charger with a replaceable advertising board, 1 - Power extraction module, 2 - Spring wire, 3 - Vehicle bracket, 4 - Charging module, 5 - Charging cable, 11 - Power extraction housing, 12 - DC-DC module, 13 - Negative electrode spring, 14 - Positive electrode contact, 15 - USB-A interface, 31 - Carrier plate, 32 - Clip, 33 - Nut, 311 - Limiting component, 312 - Ball joint, 321 - Ball joint, 41 - Lower housing, 42 - Upper housing, 43 - Charging motherboard, 44 45-Speaker, 46-Human body sensor, 47-Switch button, 48-QR code bracket, 491-QR code sign, 492-Billboard, 493-Double-sided film, 494-Magnetic iron sheet, 495-Locator, 496-Communication module, 421-Button mounting slot, 422-QR code sign mounting slot, 423-Billboard mounting slot, 4231-Female buckle, 4911-Male buckle, 4912-Groove, 5-Charging cable, 51-First charging interface, 52-Second charging interface. Detailed Implementation
[0067] This utility model embodiment provides a vehicle charger 100 with a replaceable advertising board, which solves the problems of existing vehicle chargers having limited functions, being unable to sense whether there are passengers in the back seat, and being unable to notify rear passengers that the vehicle charger can be used for charging; and the need for vehicle chargers to display promotional content and be periodically replaced, while the traditional method of sticking display leaflets on the body of the vehicle charger is inconvenient to operate and not conducive to secondary use. This embodiment achieves a significant improvement in the functionality of the vehicle charger.
[0068] The technical solution in this embodiment of the utility model is to solve the above problems. The overall idea is as follows: A speaker 44, a human body sensor 45, a QR code sign 48, and an advertising sign 491 are set on the vehicle charger 100. After the charging motherboard 43 senses the presence or absence of a human body through the human body sensor 45, it can link the speaker 44 to play a preset audio to provide a prompt. The QR code sign 48 guides the user to jump to a preset link. By setting a male buckle 4911 and a groove 4912 on the advertising sign 491, and the inner ring of the advertising sign mounting groove 423 of the upper housing 42 of the charging module 4 is provided with several female buckles 4231, the advertising sign 491 can be flexibly disassembled and replaced through the male buckle 4911, female buckle 4231, and groove 4912, thereby improving the functionality of the vehicle charger 100.
[0069] 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.
[0070] Please refer to Figures 1 to 11 As shown, a preferred embodiment of the vehicle charger 100 with a replaceable advertising sign of the present invention includes:
[0071] A power-taking module 1 is used to draw power from the vehicle's cigarette lighter (not shown) and perform voltage conversion;
[0072] 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;
[0073] A vehicle mount 3 is used to mount the charging module 4;
[0074] 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;
[0075] A charging cable 5 has a first charging interface 51 and a second charging interface 52 at one end, and the other end is connected to the output end of the charging module 4. It is used to connect a mobile terminal device (not shown) through the first charging interface 51 or the second charging interface 52 to charge it.
[0076] The charging module 4 includes:
[0077] A lower housing 41 is mounted on the vehicle-mounted bracket 3;
[0078] 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 of the upper housing 42 is provided with a button mounting slot 421, a QR code mounting slot 422, and an advertising board mounting slot 423. The advertising board mounting slot 423 is provided with a plurality of female buckles 4231 in the inner ring. The upper housing 42 and the lower housing 41 are used to provide safety protection for the charging module 4.
[0079] 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.
[0080] A speaker 44 is located between the lower housing 41 and the upper housing 42 and is connected to the charging motherboard 43 for voice prompts to indicate charging and device loss.
[0081] A human body sensor 45 is disposed between the lower housing 41 and the upper housing 42, with the sensing end passing through the upper housing 42 and connected to the charging motherboard 43, for sensing human body;
[0082] A switch button 46 is located in the button mounting slot 421 and connected to the charging motherboard 43, and is used to start and stop the charging of the vehicle charger 100.
[0083] A QR code bracket 47 is used to mount the QR code sign 48;
[0084] A QR code sign 48 is installed in the QR code sign mounting slot 422 via the QR code bracket 47 for displaying a QR code;
[0085] An advertising board 491 has several male buckles 4911 around its bottom edge and a groove 4912 at its end that matches the shape of the advertising board mounting groove 423. The advertising board 491 is installed in the advertising board mounting groove 423 by means of the male buckles 4911 and female buckles 4231. The advertising board 491 can be flexibly assembled and disassembled by means of the male buckles 4911, female buckles 4231 and groove 4912.
[0086] The charging module 4 also includes:
[0087] One double-sided film costs 492;
[0088] A magnetic iron sheet 493 is attached to the inside of the lower housing 41 by the double-sided adhesive sheet 492, so that the charging module 4 can be magnetically attached to the vehicle bracket 3.
[0089] Both the double-sided film 492 and the magnetic iron sheet 493 are circular.
[0090] The charging module 4 also includes:
[0091] 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;
[0092] 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.
[0093] The locator 494 is a GPS locator or a Beidou locator.
[0094] The communication module 495 is at least one of a 3G communication module, 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.
[0095] The power supply module 1 includes:
[0096] A power-generating housing 11 with a bottom shape that matches the cigarette lighter;
[0097] 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;
[0098] 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;
[0099] 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;
[0100] 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 mobile terminal devices.
[0101] The vehicle-mounted bracket 3 includes:
[0102] A support plate 31 has four limiting members 311 symmetrically arranged on the front to match the charging module 4, and a ball head seat 312 on the back.
[0103] A clip 32 has a ball head 321 at its end that matches the ball head seat 312. The ball head 321 is installed inside the ball head seat 312. In actual use, the clip 32 can be clamped onto the headrest vertical bar (not shown) of a seat (not shown). The angle of the support plate 31 can be flexibly adjusted by the ball head 321 and the ball head seat 312.
[0104] A nut 33 is rotatably connected to the ball head seat 312 for locking the clip 32, that is, locking or loosening the ball head 321 by tightening or loosening the ball head seat 312.
[0105] The support plate 31 is a metal support plate to facilitate the magnetic attraction of the magnetic iron sheet 493.
[0106] The first charging port 51 is a USB-C port; the second charging port 52 is a Lightning port.
[0107] Working principle of this utility model:
[0108] The power module 4 is inserted into the vehicle's cigarette lighter socket. The clip 32 is clamped onto the headrest upright of one row of seats. The advertising board 491 is removed and replaced using the groove 4912. The new advertising board 491 is then installed using the male clip 4911 and female clip 4231. Next, the charging module 4 is attached to the vehicle bracket 3 using the magnetic iron piece 493 and is limited by the limiting member 311. When the human body sensor 45 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 45 detects a passenger, it immediately wakes up and plays a preset charging prompt audio through the speaker 44. The passenger then takes the charging cable 5 and connects it to the first charging port 51 or the second charging port 52 to charge their mobile phone.
[0109] In summary, the advantages of this utility model are as follows:
[0110] 1. By setting up a power supply module, spring wire, vehicle mount, charging module, and charging cable, which are connected sequentially, the charging module is installed on the vehicle mount. The charging module is equipped with a human body sensor, speaker, QR code sign, and advertising board. After the charging module's main board detects the presence of a human body through the human body sensor, it can activate the speaker to play a preset audio to provide prompts, such as prompts to use the vehicle charger or that the phone has been left behind. The QR code sign can guide users to preset links. By setting male and female buckles and grooves on the advertising board, and the inner ring of the advertising board mounting groove on the upper shell of the charging module has several female buckles, the advertising board can be flexibly disassembled and replaced through the male and female buckles and grooves, thereby greatly improving the functionality and user experience of the vehicle charger.
[0111] 2. 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.
[0112] 3. By adding two additional USB-A ports on the power module, the charging needs of multiple devices can be met.
[0113] 4. The combination structure of the ball joint and the clip supports 360° rotation, adapting to different installation environments and usage requirements.
[0114] 5. By setting the support plate to 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.
[0115] 6. 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.
[0116] 7. By incorporating spring wires, cable tangling can be avoided, effectively improving storage convenience.
[0117] 8. By integrating the communication module and the locator, remote status monitoring and location tracking functions can be realized.
[0118] 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 vehicle charger equipped with a replaceable advertising board, 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 has a first charging interface and a second charging interface at one end, and the other end is connected to the output end of the charging module. 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 of the upper housing has a button mounting slot, a QR code plate mounting slot, and an advertising board mounting slot. The inner ring of the advertising board mounting slot is provided with several female buckles. 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; A speaker is located 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; A switch button is located in the button mounting slot and is connected to the charging motherboard; A QR code holder; A QR code sign is installed in the QR code sign mounting slot via the QR code bracket; A billboard has several male buckles around its bottom edge and a groove at its end that matches the shape of the billboard mounting groove. It is installed in the billboard mounting groove by means of the male and female buckles.
2. A vehicle charger with a replaceable advertising board as described in claim 1, characterized in that: 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.
3. A vehicle charger with a replaceable advertising board as described in claim 2, characterized in that: Both the double-sided film and the magnetic iron sheet are circular.
4. A vehicle charger with a replaceable advertising board as described in claim 1, characterized in that: 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.
5. A vehicle charger with a replaceable advertising board as described in claim 4, characterized in that: The locator is a GPS locator or a BeiDou locator.
6. A vehicle charger with a replaceable advertising board as described in claim 4, characterized in that: The communication module is at least one of the following: 3G communication module, 4G communication module, 5G communication module, NB-IoT communication module, LoRa communication module, WIFI communication module, Bluetooth communication module, or ZigBee communication module.
7. A vehicle charger with a replaceable advertising board as described in claim 1, characterized in that: 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.
8. A vehicle charger with a replaceable advertising board as described in claim 1, characterized in that: 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 clip, with a ball head at one end that matches the ball head seat, the ball head being installed inside the ball head seat; A nut, rotatably connected to the ball head, is used to lock the clamp.
9. A vehicle charger with a replaceable advertising board as described in claim 8, characterized in that: The support plate is a metal support plate.
10. A vehicle charger with a replaceable advertising board as described in claim 1, characterized in that: The first charging port is a USB-C port; the second charging port is a Lightning port.