A digital display with bluetooth

Abstract

The utility model discloses a digital display with bluetooth relates to battery charging field, this digital display with bluetooth includes: communication interface module is used to access charger communication interface, obtains the data of charger, 5V voltage, and the data of charger and 5V voltage are transmitted to bluetooth chip module through extension wire, bluetooth chip module is used to receive the data of charger, compares with prior art, the beneficial effects of the utility model are: the utility model solves the ordinary charger in the charging process and needs to look down and bend to check the charging state, adds the extension extension wire and bluetooth chip module of external connection in the charger and establishes communication with the cell -phone, can check the charging state in the cell -phone APP end, has reduced the operation difficulty of user, reduces the operation time, can check the charging state when approaching the charger, utilize external extension wire, extend to the outside of vehicle or metal frame, realize arbitrary position installation, avoid bluetooth signal interruption.

Description

Technical Field

[0001] This utility model relates to the field of battery charging, specifically a digital display with Bluetooth. Background Technology

[0002] Currently available chargers (such as special vehicle chargers and electric bicycle chargers) can only indicate the charging status through LED indicator lights, and cannot accurately display the current charging voltage and current. Furthermore, existing chargers are installed on the bottom of the vehicle, making it inconvenient to observe the indicator lights. Existing technology solves these two problems by adding a Bluetooth chip for long-distance observation.

[0003] Currently, most Bluetooth-enabled chargers on the market have the Bluetooth chip installed inside the charger. The charger is installed inside the vehicle or within a metal frame. The installation location can affect the Bluetooth signal strength, leading to signal interruptions and loss of signal reception, which negatively impacts the user experience and needs improvement. Utility Model Content

[0004] The purpose of this invention is to provide a digital display with Bluetooth to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A digital display with Bluetooth, comprising:

[0007] The communication interface module is used to connect to the charger's communication interface, obtain the charger's data and 5V voltage, and transmit the charger's data and 5V voltage to the Bluetooth chip module through an extension wire (specifically a 4-core shielded wire);

[0008] The Bluetooth chip module is used to receive data from the charger and transmit the charger's data to the display driver chip module; at the same time, it establishes Bluetooth communication with the mobile device, enabling the mobile device to view the charger's real-time parameters.

[0009] The display driver chip module is used to receive and decode data from the charger, and drive the display module to work.

[0010] The display screen shows the charger's real-time parameters.

[0011] The communication interface module connects to the Bluetooth chip module, the Bluetooth chip module connects to the display driver chip module, and the display driver chip module connects to the display screen.

[0012] As a further improvement of this utility model: the communication interface module includes an interface JP1, which is connected to an external charger communication interface. The fourth terminal of the interface JP1 is grounded, and the first, second, and third terminals of the interface JP1 are connected to a Bluetooth chip module.

[0013] As a further embodiment of this utility model: the Bluetooth chip module includes a voltage regulator IC1 and a Bluetooth chip IC2. The voltage regulator IC1 is model ME6118A33P, and the Bluetooth chip IC2 is model MA26. The second terminal of the voltage regulator IC1 is connected to one end of capacitor C1 and the communication interface module, and the other end of capacitor C1 is grounded. The first terminal of the voltage regulator IC1 is grounded. The third terminal of the voltage regulator IC1 is connected to one end of capacitor C2 and one end of resistor R1, and the other end of capacitor C2 is grounded. The other end of resistor R1 is connected to pin 12 of Bluetooth chip IC2. Pin 13 of Bluetooth chip IC2 is connected to one end of capacitor C7 and the communication interface module, and the other end of capacitor C7 is grounded. Pin 14 of Bluetooth chip IC2 is connected to one end of capacitor C6 and the communication interface module, and the other end of capacitor C6 is grounded. Pin 3 of Bluetooth chip IC2 is connected to the display driver chip module.

[0014] As a further embodiment of this utility model: the display driver chip module includes chip IC3, the model of chip IC3 is TM1652, pin 16 of chip IC3 is connected to one end of resistor R2 and one end of capacitor C5, the other end of resistor R2 is connected to Bluetooth chip module, the other end of capacitor C5 is grounded, and pins 2 to 9 and 13 to 15 of chip IC3 are connected to display module.

[0015] As a further improvement of this utility model, the display screen is a 3x8 segmented code display screen.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This utility model solves the problem that ordinary chargers require users to bend over to check the charging status during the charging process. By adding an external extension wire and a Bluetooth chip module to the charger to establish communication with the mobile phone, the charging status can be checked on the mobile APP, reducing the difficulty of operation for users and reducing operation time. The charging status can be checked when the user is close to the charger. By using an external extension wire, it can be extended to the outside of the vehicle or metal frame to achieve installation in any location and avoid Bluetooth signal interruption. Attached Figure Description

[0017] Figure 1 This is a circuit diagram of a digital display with Bluetooth.

[0018] Figure 2 This is a schematic diagram of a digital display with Bluetooth.

[0019] In the diagram: 1-PVC cover, 2-extension wire, 3-lamp holder, 4-heat shrink tubing, 5-PCB board, 6-light shield, 7-indicator sticker, 8-metal pin, 9-terminal housing, 10-universal 4-pin connector. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 A digital display with Bluetooth, comprising:

[0022] The communication interface module is used to connect to the charger's communication interface, obtain the charger's data and 5V voltage, and transmit the charger's data and 5V voltage to the Bluetooth chip module through the extension wire 2 (specifically a 4-core shielded wire);

[0023] The Bluetooth chip module is used to receive data from the charger and transmit the charger's data to the display driver chip module; at the same time, it establishes Bluetooth communication with the mobile device, enabling the mobile device to view the charger's real-time parameters.

[0024] The display driver chip module is used to receive and decode data from the charger, and drive the display module to work.

[0025] The display screen shows the charger's real-time parameters.

[0026] The communication interface module connects to the Bluetooth chip module, the Bluetooth chip module connects to the display driver chip module, and the display driver chip module connects to the display screen.

[0027] In this embodiment: Please refer to Figure 1 The communication interface module includes interface JP1, which is connected to the external charger communication interface. The fourth terminal of interface JP1 is grounded, and the first, second, and third terminals of interface JP1 are connected to the Bluetooth chip module.

[0028] Interface JP1 is an external charger communication interface that obtains data and 5V voltage from the charger and outputs them to the Bluetooth chip module.

[0029] Please see Figure 2 The interface JP1 consists of a metal pin 8, a terminal housing 9, and a universal 4-pin interface 10. The metal pin 8 can be an Amphenol AT62-16-0122, the terminal housing 9 can be a Conn Plug 4-Pin AT06-4S-RD01, and the universal 4-pin interface 10 can be an Amphenol AW4S.

[0030] In this embodiment: Please refer to Figure 1The Bluetooth chip module includes a voltage regulator IC1 and a Bluetooth chip IC2. The voltage regulator IC1 is model ME6118A33P, and the Bluetooth chip IC2 is model MA26. The second terminal of the voltage regulator IC1 is connected to one end of capacitor C1 and the communication interface module, and the other end of capacitor C1 is grounded. The first terminal of the voltage regulator IC1 is grounded. The third terminal of the voltage regulator IC1 is connected to one end of capacitor C2 and one end of resistor R1, and the other end of capacitor C2 is grounded. The other end of resistor R1 is connected to pin 12 of Bluetooth chip IC2. Pin 13 of Bluetooth chip IC2 is connected to one end of capacitor C7 and the communication interface module, and the other end of capacitor C7 is grounded. Pin 14 of Bluetooth chip IC2 is connected to one end of capacitor C6 and the communication interface module, and the other end of capacitor C6 is grounded. Pin 3 of Bluetooth chip IC2 is connected to the display driver chip module.

[0031] The voltage regulator IC1, capacitors C1 and C2 form a voltage supply circuit that converts 5V to 3.3V to power the Bluetooth chip IC2. Resistor R1 is the Bluetooth operating mode selection resistor. Capacitors C6 and C7 are used to stabilize the communication signal and filter communication interference from the charger. The second and third terminals of interface JP1 are connected to the Bluetooth chip IC2 to transmit the charger's real-time parameters. The Bluetooth chip IC2 sends wireless signals, which are received by the mobile app.

[0032] Please see Figure 2 The interface JP1 transmits the charger's data and 5V voltage to the Bluetooth chip module through the heat shrink tubing 4 and the extension wire 2. The Bluetooth chip module is located on the PCB board 5 inside the lamp holder 3. The PCB board 5 is also connected in sequence to the light shield 6 and the indicator sticker 7, which are placed inside the PVC shell 1.

[0033] The assembly process for PVC faceplate 1 involves using ZS-N-D935 single-component silicone adhesive sealant. Apply 4.8ml of sealant, first apply half of it, then vibrate downwards to release air and prevent air bubbles, before applying the last half.

[0034] The extension wire 2 can be a 4-core shielded wire, UL2464 20awg*4c+shielded VW-1-40-105℃ 300V, with a length of up to 2.0 meters.

[0035] The lamp holder model 3 is eatshrnk adhsv 3 / 16”blk 3t01 id=4.8m.

[0036] Heat shrink tubing 4 isolates current by tightly wrapping the conductor, preventing leakage and short circuits. The PCB board 5 houses the Bluetooth chip module, display driver chip module, and display screen. A light shield 6 prevents cross-light leakage. Indicator stickers 7 provide informational prompts.

[0037] In this embodiment: Please refer to Figure 1The display driver chip module includes chip IC3, model number TM1652. Pin 16 of chip IC3 is connected to one end of resistor R2 and one end of capacitor C5. The other end of resistor R2 is connected to the Bluetooth chip module, and the other end of capacitor C5 is grounded. Pins 2 to 9 and 13 to 15 of chip IC3 are connected to the display module.

[0038] In this embodiment: Please refer to Figure 1 The display screen is a 3x8 segmented code display screen.

[0039] Chip IC3 is a display driver chip used to decode data sent by the Bluetooth chip module and display voltage, current and battery level data on a 3*8 segment display. Resistor R2 and capacitor C5 form an RC integrator circuit to improve the communication waveform.

[0040] The working principle of this utility model is as follows: The communication interface module is used to connect to the charger's communication interface, obtain the charger's data and 5V voltage, and transmit the charger's data and 5V voltage to the Bluetooth chip module through the extension wire 2 (specifically a 4-core shielded wire); the Bluetooth chip module is used to receive the charger's data and transmit the charger's data to the display driver chip module; at the same time, it establishes Bluetooth communication with the mobile device, enabling the mobile device to view the charger's real-time parameters; the display driver chip module is used to receive and decode the charger's data, driving the display screen module to work; the display screen is used to display the charger's real-time parameters.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A digital display with Bluetooth, characterized in that, The Bluetooth-enabled digital display includes: The communication interface module is used to connect to the charger's communication interface, obtain the charger's data and 5V voltage, and transmit the charger's data and 5V voltage to the Bluetooth chip module through an extension wire. The Bluetooth chip module is used to receive data from the charger and transmit the charger's data to the display driver chip module; at the same time, it establishes Bluetooth communication with the mobile device, enabling the mobile device to view the charger's real-time parameters. The display driver chip module is used to receive and decode data from the charger, and drive the display module to work. The display screen shows the charger's real-time parameters. The communication interface module connects to the Bluetooth chip module, the Bluetooth chip module connects to the display driver chip module, and the display driver chip module connects to the display screen.

2. The digital display with Bluetooth according to claim 1, characterized in that, The communication interface module includes interface JP1, which is connected to the external charger communication interface. The fourth terminal of interface JP1 is grounded, and the first, second, and third terminals of interface JP1 are connected to the Bluetooth chip module.

3. The digital display with Bluetooth according to claim 1, characterized in that, The Bluetooth chip module includes a voltage regulator IC1 and a Bluetooth chip IC2. The voltage regulator IC1 is model ME6118A33P, and the Bluetooth chip IC2 is model MA26. The second terminal of the voltage regulator IC1 is connected to one end of capacitor C1 and the communication interface module, while the other end of capacitor C1 is grounded. The first terminal of the voltage regulator IC1 is grounded. The third terminal of the voltage regulator IC1 is connected to one end of capacitor C2 and one end of resistor R1, while the other end of capacitor C2 is grounded. The other end of resistor R1 is connected to pin 12 of Bluetooth chip IC2. Pin 13 of Bluetooth chip IC2 is connected to one end of capacitor C7 and the communication interface module, while the other end of capacitor C7 is grounded. Pin 14 of Bluetooth chip IC2 is connected to one end of capacitor C6 and the communication interface module, while the other end of capacitor C6 is grounded. Pin 3 of Bluetooth chip IC2 is connected to the display driver chip module.

4. The digital display with Bluetooth according to claim 1, characterized in that, The display driver chip module includes chip IC3, model number TM1652. Pin 16 of chip IC3 is connected to one end of resistor R2 and one end of capacitor C5. The other end of resistor R2 is connected to the Bluetooth chip module, and the other end of capacitor C5 is grounded. Pins 2 to 9 and 13 to 15 of chip IC3 are connected to the display module.

5. The digital display with Bluetooth according to claim 4, characterized in that, The display screen is a 3x8 segmented display screen.

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