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CN-224233380-U - Charging indication circuit for charger

CN224233380UCN 224233380 UCN224233380 UCN 224233380UCN-224233380-U

Abstract

The utility model discloses a charging indication circuit for a charger, which relates to the field of charging and comprises a Bluetooth communication module, a power supply module, a display driving module and a display driving module, wherein the Bluetooth communication module is used for being connected with a charger mainboard to acquire charger data and construct Bluetooth communication, the power supply module is used for supplying power to the Bluetooth communication module, the display driving module is used for being connected with the charger mainboard to decode real-time parameters of the charger and drive the display module to work, the display module is used for displaying electric quantity of the charger, and the Bluetooth communication module is connected with the charger mainboard.

Inventors

  • LIN ZHENGWEI

Assignees

  • 深圳前海云充科技有限公司

Dates

Publication Date
20260512
Application Date
20250702

Claims (5)

  1. 1. A charge indication circuit for a charger, the charge indication circuit comprising: the Bluetooth communication module is used for connecting a charger main board, acquiring charger data and constructing Bluetooth communication; the power supply module is used for supplying power to the Bluetooth communication module; the display driving module is used for connecting a charger main board, decoding real-time parameters of the charger and driving the display module to work; the display module is used for displaying the electric quantity of the charger; the Bluetooth communication module is connected with the charger main board, the display driving module is connected with the charger main board, the power supply module is connected with the Bluetooth communication module, and the display driving module is connected with the display module.
  2. 2. The charge indication circuit of claim 1, wherein the bluetooth communication module comprises a bluetooth chip IC600, the bluetooth chip IC600 is of a type MA26, pin 13 of the bluetooth chip is connected to a capacitor C602 and a fourth terminal of an interface CN601, the other end of the capacitor C602 is grounded, pin 14 of the bluetooth chip is connected to a capacitor C603 and a third terminal of the interface CN601, the other end of the capacitor C603 is grounded, and the interface CN601 is externally connected to a charger motherboard.
  3. 3. The charge indication circuit for a charger of claim 2, wherein the power supply module comprises a voltage regulator U602, the voltage regulator U602 is of a type JLT7550a33P, the second terminal of the voltage regulator U602 is connected to a 5V voltage, one terminal of a capacitor C606, the third terminal of the voltage regulator U602 is connected to one terminal of the capacitor C607, one terminal of a resistor R611, the other terminal of the resistor R611 is connected to pin 12 of the bluetooth chip IC600, and the other terminal of the capacitor C606 is connected to the other terminal of the capacitor C607, the first terminal of the voltage regulator U602, and the second terminal of the interface CN 601.
  4. 4. The charge indication circuit of claim 1, wherein the display driving module comprises a chip U600, the type of the chip U600 is TM1652, pin 1 of the chip U600 is connected to a voltage of 5V, one end of a capacitor C600, one end of a capacitor C601, the other end of the capacitor C600 is grounded, pins 2, 3, 4, 5, 6, 12 of the chip U600 are connected to the display module, pin 16 of the chip U600 is connected to one end of a resistor R600, the other end of the resistor R600 is connected to a fifth end of an interface CN601, one end of a capacitor C604, the other end of the capacitor C604 is grounded, and the interface CN601 is externally connected to a charger motherboard.
  5. 5. The charge indicating circuit for a charger according to claim 4, wherein the display module comprises a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, and a light emitting diode LED6, wherein a positive electrode of the light emitting diode LED2 is connected to pin 2 of the chip U600 through a resistor R614, a positive electrode of the light emitting diode LED3 is connected to pin 3 of the chip U600 through a resistor R613, a positive electrode of the light emitting diode LED4 is connected to pin 4 of the chip U600 through a resistor R612, a positive electrode of the light emitting diode LED5 is connected to pin 5 of the chip U600 through a resistor R610, a positive electrode of the light emitting diode LED6 is connected to pin 6 of the chip U600 through a resistor R609, and a negative electrode of the light emitting diode LED2 is connected to a negative electrode of the light emitting diode LED3, a negative electrode of the light emitting diode LED4, a negative electrode of the light emitting diode LED5, a negative electrode of the light emitting diode LED6, and pin 12 of the chip U600.

Description

Charging indication circuit for charger Technical Field The utility model relates to the field of charging, in particular to a charging indication circuit for a charger. Background Electric vehicle chargers typically indicate a state of charge by a traffic light, a red light indicating that charging is occurring and a green light shining indicating that a float charge phase is entered. However, in practical use, two main problems are that a plurality of chargers are installed at the bottom or the hidden position of the electric vehicle, so that a user is difficult to visually observe the state of the indicator light, and a green light is lightened to only indicate that the electric vehicle enters the end stage of charging, and the electric quantity of the battery can only reach about 90% at the moment and still can be fully charged after the battery is continuously floated for 30 minutes to 2 hours (specific time is required to refer to the specification). Therefore, there is a limitation in that the observation of the state of charge is inconvenient and the accuracy is insufficient depending on the indication lamp alone, and improvement is required. Disclosure of utility model The present utility model is directed to a charging indicating circuit for a charger, so as to solve the above-mentioned problems. In order to achieve the above purpose, the present utility model provides the following technical solutions: a charge indicating circuit for a charger, comprising: the Bluetooth communication module is used for connecting a charger main board, acquiring charger data and constructing Bluetooth communication; the power supply module is used for supplying power to the Bluetooth communication module; the display driving module is used for connecting a charger main board, decoding real-time parameters of the charger and driving the display module to work; the display module is used for displaying the electric quantity of the charger; the Bluetooth communication module is connected with the charger main board, the display driving module is connected with the charger main board, the power supply module is connected with the Bluetooth communication module, and the display driving module is connected with the display module. As a still further scheme of the utility model, the Bluetooth communication module comprises a Bluetooth chip IC600, the model of the Bluetooth chip IC600 is MA26, a No. 13 pin of the Bluetooth chip is connected with a capacitor C602 and a fourth end of an interface CN601, the other end of the capacitor C602 is grounded, a No. 14 pin of the Bluetooth chip is connected with a capacitor C603 and a third end of the interface CN601, the other end of the capacitor C603 is grounded, and the interface CN601 is externally connected with a charger main board. As a still further scheme of the utility model, the power supply module comprises a voltage stabilizer U602, the model of the voltage stabilizer U602 is JLT7550A33P, the second end of the voltage stabilizer U602 is connected with 5V voltage, one end of a capacitor C606, the third end of the voltage stabilizer U602 is connected with one end of a capacitor C607 and one end of a resistor R611, the other end of the resistor R611 is connected with a No. 12 pin of the Bluetooth chip IC600, and the other end of the capacitor C606 is connected with the other end of the capacitor C607, the first end of the voltage stabilizer U602 and the second end of an interface CN 601. As a still further scheme of the utility model, the display driving module comprises a chip U600, the model of the chip U600 is TM1652, the No. 1 pin of the chip U600 is connected with 5V voltage, one end of a capacitor C600 and one end of a capacitor C601, the other end of the capacitor C600 is grounded, the other end of the capacitor C601 is grounded, the No. 2, 3, 4, 5, 6 and 12 pins of the chip U600 are connected with the display module, the No. 16 pin of the chip U600 is connected with one end of a resistor R600, the other end of the resistor R600 is connected with the fifth end of an interface CN601 and one end of a capacitor C604, the other end of the capacitor C604 is grounded, and the interface CN601 is externally connected with a charger main board. As a still further scheme of the utility model, the display module comprises a luminous tube LED2, a luminous tube LED3, a luminous tube LED4, a luminous tube LED5 and a luminous tube LED6, wherein the positive electrode of the luminous tube LED2 is connected with a No. 2 pin of a chip U600 through a resistor R614, the positive electrode of the luminous tube LED3 is connected with a No. 3 pin of the chip U600 through a resistor R613, the positive electrode of the luminous tube LED4 is connected with a No. 4 pin of the chip U600 through a resistor R612, the positive electrode of the luminous tube LED5 is connected with a No. 5 pin of the chip U600 through a resistor R610, the positive electrode of the luminous tube LED6 is connected w