Charger capable of communicating with battery in real time

Abstract

The utility model relates to the technical field of battery chargers, and particularly discloses a charger capable of communicating with a battery in real time, which comprises a battery management unit. The battery management unit is electrically connected with a Bluetooth unit, a battery interface unit used for being connected with a battery, a display unit used for displaying the charging state, a charging control unit, a charging protection unit used for charging reverse connection protection and a parameter acquisition unit used for acquiring the temperature and current of the battery. The Bluetooth unit comprises an interface circuit connected with the battery management unit and a Bluetooth module plugged with the interface circuit; according to the utility model, through cooperation of the battery management unit, the Bluetooth unit, the battery interface unit, the display unit, the charging control unit and the parameter acquisition unit, real-time interaction and synchronization of charging parameters can be realized through the Bluetooth unit and the battery management unit, so that a user can set the charging parameters through a mobile phone APP, and the safety of battery charging is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery charger technical field, concretely is a kind of charger that can be in real time communication with battery. BACKGROUND

[0002] Battery charger is one of the common charging equipment in current life, and battery charger is an electronic device for converting external electric energy (such as mains, solar energy, etc.) into direct-current electric energy suitable for battery storage, and its core function is to realize safe and efficient energy supplement for battery by controlling charging voltage, current and charging mode (such as constant-current charging, constant-voltage charging, etc.).

[0003] The battery charger on the market currently usually only has basic charging function, and completes charging through one-way current output, cannot perform bidirectional data interaction with battery, such as real-time acquisition of battery temperature, remaining capacity, health status and other key parameters during charging, so that charging strategy is not convenient for dynamic adjustment, causing overcharge or overheating problem, thereby affecting the safety of battery charging, and therefore we need to propose a charger that can be in real-time communication with battery to solve the above problems, so that it can be in real-time interaction with battery management unit through Bluetooth module, synchronizes charging parameters, so that users can set charging parameters through mobile phone APP, and improve the safety of battery charging. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a charger that can be in real-time communication with battery, can be in real-time interaction with battery management unit through Bluetooth unit, synchronizes charging parameters, so that users can set charging parameters through mobile phone APP, and improves the safety of battery charging, to solve the problems proposed in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a charger that can be in real-time communication with battery, comprising battery management unit, Bluetooth unit, battery interface unit for connecting with battery, display unit for charging state display, charging control unit, charging protection unit for charging reverse connection protection and parameter acquisition unit for acquiring battery temperature and current, which are electrically connected on the battery management unit respectively, the Bluetooth unit is in real-time interaction with battery management unit, and synchronously transmits charging parameters acquired by parameter acquisition unit.

[0006] The Bluetooth unit comprises interface circuit connected with battery management unit and Bluetooth module plugged with interface circuit.

[0007] Preferably, the battery management unit comprises a battery management chip U1, the 8-pin of the battery management chip U1 is connected with a ground capacitor C50 and a ground capacitor C10, the 7-pin of the battery management chip U1 is connected with a resistor R80 for connecting 5V voltage, the other end of the resistor R80 is connected with the non-ground end of the ground capacitor C50 and the ground capacitor C10, the 10-pin of the battery management chip U1 is connected with a ground capacitor C51, the 17-pin of the battery management chip U1 is connected with a ground charging switch S5 and a resistor R38 for connecting 5V voltage.

[0008] Preferably, the interface circuit comprises a connection terminal J10 for connecting a Bluetooth module and a connection terminal JP4 for burning, the 2-pin and the 3-pin of the connection terminal JP4 are connected with the 4-pin and the 5-pin of the connection terminal J10 respectively, the 3-pin of the connection terminal JP4 is connected with a resistor R55 for connecting 5V voltage, and the 2-pin of the connection terminal JP4 is connected with a resistor R54 for connecting 5V voltage.

[0009] Preferably, the battery interface unit comprises a connector J8 connected with the battery management chip U1, the 6-pin of the connector J8 is connected with a voltage stabilizer Q3, the input end and the ground end of the voltage stabilizer Q3 are connected with a capacitor C13, the output end and the ground end of the voltage stabilizer Q3 are connected with a capacitor C11 and a capacitor C12 in parallel, the output end of the voltage stabilizer Q3 is connected with the 16-pin of the battery management chip U1 through a resistor R56, and the output end of the voltage stabilizer Q3 is also connected with the 15-pin of the battery management chip U1 through a resistor R57.

[0010] Preferably, the display unit comprises an LCD display interface J1 and a backlight control circuit connected with the LCD display interface J1, the 8th pin and the 9th pin of the LCD display interface J1 are connected through a capacitor C2, the 10th pin of the LCD display interface J1 is connected with a ground capacitor C1, the 1st pin of the LCD display interface J1 is connected with the 23rd pin of the battery management chip U1 through a resistor R10, one end of the resistor R10 is connected with a ground resistor R19, the 2nd pin of the LCD display interface J1 is connected with the 22nd pin of the battery management chip U1 through a resistor R11, one end of the resistor R11 is connected with a ground resistor R12, the 3rd pin of the LCD display interface J1 is connected with the 21st pin of the battery management chip U1 through a resistor R14, one end of the resistor R14 is connected with a ground resistor R13, the 4th pin of the LCD display interface J1 is connected with the 20th pin of the battery management chip U1 through a resistor R15, one end of the resistor R15 is connected with a ground resistor R16, the 5th pin of the LCD display interface J1 is connected with the 19th pin of the battery management chip U1 through a resistor R17, one end of the resistor R17 is connected with a ground resistor R18, and the backlight control circuit is connected with the 18th pin of the battery management chip U1.

[0011] Preferably, the backlight control circuit comprises a resistor R32 connected with the battery management chip U1, the other end of the resistor R32 is connected with a triode Q2, a resistor R33 is connected between the base and the emitter of the triode Q2, a resistor R34 and a resistor R35 for connecting 3.3V voltage are respectively connected to the collector of the triode Q2, one end of the resistor R34 is connected with a triode Q1, the collector of the triode Q1 is connected with a connector J2 for connecting a backlight module, the 2nd pin of the connector J2 is connected with a voltage stabilizer Q5, and the input end of the voltage stabilizer Q5 is connected with the 6th pin of a connector J8.

[0012] Preferably, the charging control unit comprises switches S1, S2, S3 and S4 arranged in parallel, one end of the switch S1 is connected with a resistor R3 for connecting 5V voltage, one end of the switch S2 is connected with a resistor R7 for connecting 5V voltage, one end of the switch S3 is connected with a resistor R2 for connecting 5V voltage, one end of the switch S4 is connected with a resistor R6 for connecting 5V voltage, the connection end of the resistor R6 and the switch S4, the connection end of the resistor R7 and the switch S2, the connection end of the resistor R3 and the switch S1, and the connection end of the resistor R2 and the switch S2 are all connected with the battery management chip U1, and the parallel ends of the switches S1, S2, S3 and S4 are grounded.

[0013] Preferably, the charging protection unit comprises a resistor R40 connected with the 32-pin of the battery management chip U1, one end of the resistor R40 is connected with a resistor R42 for connecting with the 7-pin of the connector J8, and the resistor R42 is connected with the resistor R40 in parallel with a ground resistor R41 and a reverse connection protection diode D1, the other end of the reverse connection protection diode D1 is grounded.

[0014] Preferably, the parameter acquisition unit comprises a ground capacitor C4 connected with the 30-pin of the battery management chip U1 and a temperature sampling resistor R25 for accessing 5V voltage, the 31-pin of the battery management chip U1 is connected with a current sampling resistor R29 and a ground capacitor C5, and the temperature sampling resistor R25 and the current sampling resistor R29 are respectively connected with the 2-pin and the 1-pin of the connector J8.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、 the utility model discloses a battery management unit, bluetooth unit, battery interface unit, display unit, charging control unit and the synergistic cooperation of parameter acquisition unit, can through bluetooth unit and battery management unit real -time interaction, and the synchronous charging parameter makes the user can set the charging parameter through the mobile phone APP, improves the security of battery charging.

[0017] 2、 the utility model discloses the cooperation of charging protection unit and battery management unit, can carry out battery reverse connection protection when battery charging, improves the security of battery charging. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the battery management unit and surrounding circuit schematic diagram of utility model;

[0020] Figure 3 It is the voltage stabilizer Q5 and voltage stabilizer Q3 circuit schematic diagram of utility model;

[0021] Figure 4 It is the connector J8 circuit schematic diagram of utility model;

[0022] Figure 5 It is the bluetooth unit circuit schematic diagram of utility model;

[0023] Figure 6 It is the LCD display interface circuit schematic diagram of utility model. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-6 The utility model provides a charger can real time communication with battery, including battery management unit, battery management unit is electrically connected with bluetooth unit respectively, is used for with battery connection's battery interface unit, is used for the display of charging state display unit, charging control unit, is used for charging reverse connection protection's charging protection unit and gathers battery temperature and current's parameter acquisition unit, bluetooth unit and battery management unit real time interaction, and the charging parameter of parameter acquisition unit gathers is synchronous transmission, through the coordination of battery management unit, bluetooth unit, battery interface unit, display unit, charging control unit and parameter acquisition unit, can pass through bluetooth unit and battery management unit real time interaction, synchronous charging parameter, make user can set charging parameter through cell -phone APP, improve the security of battery charging.

[0026] Battery management unit includes battery management chip U1, the 8 feet of battery management chip U1 are connected with ground capacitor C50 and ground capacitor C10, the 7 feet of battery management chip U1 are connected with the resistance R80 for connecting 5V voltage, the other end of resistance R80 is connected with the non-ground end of ground capacitor C50 and ground capacitor C10, the 10 feet of battery management chip U1 are connected with ground capacitor C51, the 17 feet of battery management chip U1 are connected with ground charging switch S5 and the resistance R38 for accessing 5V voltage, manage and control through battery management chip U1 to battery charging, ensure the security and high efficiency of battery charging.

[0027] Battery interface unit includes the connector J8 connected with battery management chip U1, the 6 feet of connector J8 are connected with voltage stabilizer Q3, the input end and ground end between voltage stabilizer Q3 are connected with capacitor C13, voltage stabilizer Q3's output end and ground end are connected with capacitor C11 and capacitor C12 in parallel, voltage stabilizer Q3's output end is connected with the 16 feet of battery management chip U1 through resistance R56, and voltage stabilizer Q3's output end is still connected with the 15 feet of battery management chip U1 through resistance R57, filter the output signal of voltage stabilizer Q3 through capacitor C11 and capacitor C12, ensure the stability of battery management chip U1 power supply, the connector is used for connecting battery main control board, and it is convenient to charge safely to battery.

[0028] The display unit comprises an LCD display interface J1 and a backlight control circuit connected with the LCD display interface J1, the 8th pin and the 9th pin of the LCD display interface J1 are connected through a capacitor C2, the 10th pin of the LCD display interface J1 is connected with a ground capacitor C1, the 1st pin of the LCD display interface J1 is connected with the 23rd pin of the battery management chip U1 through a resistor R10, one end of the resistor R10 is connected with a ground resistor R19, the 2nd pin of the LCD display interface J1 is connected with the 22nd pin of the battery management chip U1 through a resistor R11, one end of the resistor R11 is connected with a ground resistor R12, the 3rd pin of the LCD display interface J1 is connected with the 21st pin of the battery management chip U1 through a resistor R14, one end of the resistor R14 is connected with a ground resistor R13, the 4th pin of the LCD display interface J1 is connected with the 20th pin of the battery management chip U1 through a resistor R15, one end of the resistor R15 is connected with a ground resistor R16, the 5th pin of the LCD display interface J1 is connected with the 19th pin of the battery management chip U1 through a resistor R17, one end of the resistor R17 is connected with a ground resistor R18, the backlight control circuit is connected with the 18th pin of the battery management chip U1, the display screen is connected through the LCD display interface J1, so that the charging state can be displayed through the display screen, and observation is facilitated.

[0029] The backlight control circuit comprises a resistor R32 connected with the battery management chip U1, the other end of the resistor R32 is connected with a triode Q2, the base and the emitter of the triode Q2 are connected with a resistor R33, the collector of the triode Q2 is connected with a resistor R34 and a resistor R35 for connecting a 3.3V voltage respectively, one end of the resistor R34 is connected with a triode Q1, the collector of the triode Q1 is connected with a connector J2 for connecting a backlight module, the 2nd pin of the connector J2 is connected with a voltage stabilizer Q5, the input end of the voltage stabilizer Q5 is connected with the 6th pin of a connector J8, the display screen can be provided with stable power supply voltage through the backlight control circuit, and the normal work of the display screen is guaranteed.

[0030] The charging control unit comprises switches S1, S2, S3 and S4 arranged in parallel, one end of the switch S1 is connected with a resistor R3 for connecting a 5V voltage, one end of the switch S2 is connected with a resistor R7 for connecting a 5V voltage, one end of the switch S3 is connected with a resistor R2 for connecting a 5V voltage, one end of the switch S4 is connected with a resistor R6 for connecting a 5V voltage, the connection end of the resistor R6 and the switch S4, the connection end of the resistor R7 and the switch S2, the connection end of the resistor R3 and the switch S1 and the connection end of the resistor R2 and the switch S2 are connected with the battery management chip U1 respectively, the parallel ends of the switches S1, S2, S3 and S4 are grounded, the start and stop of the battery repair are controlled through the on-off of the switch S1, the selection of the battery type is controlled through the on-off of the switch S2, the start and stop of the low-temperature mode are controlled through the on-off of the switch S3, and the selection of the charging current is controlled through the on-off of the switch S4.

[0031] The charging protection unit comprises a resistor R40 connected with the 32th pin of the battery management chip U1, one end of the resistor R40 is connected with a resistor R42 for connecting with the 7th pin of the connector J8, and the resistor R42 is connected in parallel with a resistor R41 and a reverse connection protection diode D1 on the connecting end of the resistor R40, the other end of the reverse connection protection diode D1 is grounded, the reverse connection protection diode D1 can be used for battery reverse connection protection when the battery is charged, and the safety of the battery charging is improved.

[0032] The parameter acquisition unit comprises a ground capacitor C4 connected with the 30th pin of the battery management chip U1 and a temperature sampling resistor R25 for accessing 5V voltage, the 31th pin of the battery management chip U1 is connected with a current sampling resistor R29 and a ground capacitor C5, the temperature sampling resistor R25 and the current sampling resistor R29 are respectively connected with the 2nd pin and the 1st pin of the connector J8, the temperature sampling resistor R25 is used for acquiring the temperature of the battery charging, the current sampling resistor R29 is used for acquiring the current information of the battery, and the ground capacitor C5 and the ground capacitor C4 are respectively used for denoising the current sampling data and the temperature sampling data, and the accuracy of parameter acquisition is improved.

[0033] The Bluetooth unit comprises an interface circuit connected with the battery management unit and a Bluetooth module plugged with the interface circuit.

[0034] The interface circuit comprises a connecting terminal J10 connected with the battery management chip U1 and used for connecting the Bluetooth module and a connecting terminal JP4 used for burning, the 2nd pin and the 3rd pin of the connecting terminal JP4 are respectively connected with the 4th pin and the 5th pin of the connecting terminal J10, the 3rd pin of the connecting terminal JP4 is connected with a resistor R55 for accessing 5V voltage, and the 2nd pin of the connecting terminal JP4 is connected with a resistor R54 for accessing 5V voltage, the connecting terminal J10 is used for connecting the Bluetooth module with the battery management chip U1, so that the Bluetooth wireless technology can be used for synchronously transmitting the parameter information, and the Bluetooth module uses the commonly known technology, and will not be described in detail herein.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A charger capable of real-time communication with a battery, characterized by: The battery management unit is electrically connected with a Bluetooth unit, a battery interface unit for connecting with the battery, a display unit for displaying the charging state, a charging control unit, a charging protection unit for charging reverse connection protection and a parameter acquisition unit for acquiring the battery temperature and current, respectively. The Bluetooth unit comprises an interface circuit connected with the battery management unit and a Bluetooth module plugged with the interface circuit. The battery management unit comprises a battery management chip U1, the 8-pin of the battery management chip U1 is connected with a ground capacitor C50 and a ground capacitor C10, the 7-pin of the battery management chip U1 is connected with a resistor R80 for connecting 5V voltage, the other end of the resistor R80 is connected with the non-ground end of the ground capacitor C50 and the ground capacitor C10, the 10-pin of the battery management chip U1 is connected with a ground capacitor C51, and the 17-pin of the battery management chip U1 is connected with a ground charging switch S5 and a resistor R38 for connecting 5V voltage.

2. The charger capable of real-time communication with a battery of claim 1, wherein: The interface circuit comprises a connection terminal J10 for connecting the Bluetooth module and a connection terminal JP4 for burning, the 2-pin and 3-pin of the connection terminal JP4 are connected with the 4-pin and 5-pin of the connection terminal J10 respectively, the 3-pin of the connection terminal JP4 is connected with a resistor R55 for connecting 5V voltage, and the 2-pin of the connection terminal JP4 is connected with a resistor R54 for connecting 5V voltage.

3. The charger capable of real-time communication with a battery of claim 2, wherein: The battery interface unit comprises a connector J8 connected with the battery management chip U1, the 6-pin of the connector J8 is connected with a voltage stabilizer Q3, the input end and the ground end of the voltage stabilizer Q3 are connected with a capacitor C13, the output end and the ground end of the voltage stabilizer Q3 are connected with a capacitor C11 and a capacitor C12 in parallel, the output end of the voltage stabilizer Q3 is connected with the 16-pin of the battery management chip U1 through a resistor R56, and the output end of the voltage stabilizer Q3 is also connected with the 15-pin of the battery management chip U1 through a resistor R57.

4. The charger capable of real-time communication with a battery of claim 3, wherein: The display unit includes an LCD display interface J1 and a backlight control circuit connected with the LCD display interface J1, the 8th pin and the 9th pin of the LCD display interface J1 are connected through a capacitor C2, the 10th pin of the LCD display interface J1 is connected with a ground capacitor C1, the 1st pin of the LCD display interface J1 is connected with the 23rd pin of the battery management chip U1 through a resistor R10, one end of the resistor R10 is connected with a ground resistor R19, the 2nd pin of the LCD display interface J1 is connected with the 22nd pin of the battery management chip U1 through a resistor R11, one end of the resistor R11 is connected with a ground resistor R12, the 3rd pin of the LCD display interface J1 is connected with the 21st pin of the battery management chip U1 through a resistor R14, one end of the resistor R14 is connected with a ground resistor R13, the 4th pin of the LCD display interface J1 is connected with the 20th pin of the battery management chip U1 through a resistor R15, one end of the resistor R15 is connected with a ground resistor R16, the 5th pin of the LCD display interface J1 is connected with the 19th pin of the battery management chip U1 through a resistor R17, one end of the resistor R17 is connected with a ground resistor R18, and the backlight control circuit is connected with the 18th pin of the battery management chip U1.

5. The charger capable of real-time communication with a battery of claim 4, wherein: The backlight control circuit includes a resistor R32 connected with the battery management chip U1, the other end of the resistor R32 is connected with a triode Q2, a resistor R33 is connected between the base and the emitter of the triode Q2, a resistor R34 and a resistor R35 for connecting 3.3V voltage are respectively connected to the collector of the triode Q2, one end of the resistor R34 is connected with a triode Q1, the collector of the triode Q1 is connected with a connector J2 for connecting a backlight module, and the 2nd pin of the connector J2 is connected with a voltage stabilizer Q5, and the input end of the voltage stabilizer Q5 is connected with the 6th pin of a connector J8.

6. The charger capable of real-time communication with a battery of claim 5, wherein: The charging control unit includes switches S1, S2, S3 and S4 arranged in parallel, one end of the switch S1 is connected with a resistor R3 for connecting 5V voltage, one end of the switch S2 is connected with a resistor R7 for connecting 5V voltage, one end of the switch S3 is connected with a resistor R2 for connecting 5V voltage, one end of the switch S4 is connected with a resistor R6 for connecting 5V voltage, the connection end of the resistor R6 and the switch S4, the connection end of the resistor R7 and the switch S2, the connection end of the resistor R3 and the switch S1, and the connection end of the resistor R2 and the switch S2 are all connected with the battery management chip U1, and the parallel ends of the switches S1, S2, S3 and S4 are grounded.

7. The charger capable of real-time communication with a battery of claim 6, wherein: The charging protection unit includes a resistor R40 connected with the 32nd pin of the battery management chip U1, one end of the resistor R40 is connected with a resistor R42 for connecting the 7th pin of the connector J8, and the connection end of the resistor R42 and the resistor R40 is connected in parallel with a ground resistor R41 and a reverse connection protection diode D1, and the other end of the reverse connection protection diode D1 is grounded.

8. The charger capable of real-time communication with a battery of claim 7, wherein: The parameter acquisition unit comprises a ground capacitor C4 connected with the 30th pin of the battery management chip U1 and a temperature sampling resistor R25 for accessing 5V voltage, the 31st pin of the battery management chip U1 is connected with a current sampling resistor R29 and a ground capacitor C5, and the temperature sampling resistor R25 and the current sampling resistor R29 are respectively connected with the 2nd pin and the 1st pin of the connector J8.

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