Fast-charging intelligent protection emergency starting power supply with high-speed brushless motor

Abstract

The utility model discloses a fast-charging intelligent protection emergency starting power supply with a high-speed brushless motor, and relates to the field of power supplies, the fast-charging intelligent protection emergency starting power supply with the high-speed brushless motor comprises a battery pack used for storing electric energy and outputting electric energy, and a PD fast-charging unit used for identifying a fast-charging protocol and selecting and controlling whether the battery pack is charged or discharged; compared with the prior art, the beneficial effects of the utility model are that the PD fast charging protocol module comprises a plurality of fast charging and discharging protocols, and supports fast charging of a plurality of digital products and fast charging of a plurality of fast charging charger products; compared with the traditional emergency starting power supply, the brushless motor driving module is adopted, and the high-magnification battery combination is compatible, so that the high-speed brushless motor runs more stably and quietly; the emergency starting unit is added, circuit safety is protected, and when the emergency starting unit is not connected with the automobile storage battery, the emergency starting unit stops working without a power supply, so that energy is not consumed, and the power supply is saved.

Description

Technical Field

[0001] The utility model relates to the field of power supplies, in particular to an emergency starting power supply with a high-speed brushless motor, fast charging, and intelligent protection. Background Art

[0002] If the emergency starting power supply uses a high-rate battery with a large current, when it is applied to high-current equipment such as automobiles, during the power supply process, traditional mechanical commutation and brushes will cause large energy loss during the conversion process.

[0003] If a high-speed brushless motor can be driven to replace traditional mechanical commutation and brushes, the energy loss during the conversion process will be effectively reduced, so that the brushless motor can output more electrical energy under the same battery capacity, providing stronger power for dust blowing and vacuuming, and greatly extending the life of the brushless motor. Utility Model Content

[0004] The purpose of the present utility model is to provide an emergency starting power supply with a high-speed brushless motor, fast charging and intelligent protection, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An emergency starting power supply with a high-speed brushless motor, fast charging, and intelligent protection, comprising:

[0007] Battery packs, used to store and output electrical energy,

[0008] PD fast charging unit, used to identify the fast charging protocol and select whether to control the battery pack to charge or discharge;

[0009] The master control management unit is used to select whether the brushless motor is working or not;

[0010] The emergency starting unit is used to detect power supply information when the battery pack is powering the car, and disconnect the power supply circuit when the power supply is abnormal;

[0011] The PD fast charging unit is connected to the master control management unit and the battery pack, the master control management unit is connected to the emergency start unit, and the emergency start unit is connected to the battery pack.

[0012] As a further solution of the present invention: the PD fast charging unit includes:

[0013] PD fast charging protocol module, used to identify the fast charging protocol to select and control the conduction state of the DC / DC buck-boost module;

[0014] DC / DC buck-boost module, used to complete DC voltage buck-boost conversion;

[0015] The PD fast charging protocol module is connected to the DC / DC buck-boost module.

[0016] As a further solution of the present invention: the PD fast charging protocol module includes a chip U1, the model of the chip U1 is SW6306, the pins 23, 24 and 25 of the chip U1 are connected to the general control management unit, and the pins 52, 53, 55, 57, 59 and 60 of the chip U1 are connected to the DC / DC buck-boost module.

[0017] As a further solution of the present invention: the master control management unit includes:

[0018] The master control module is used to control whether the brushless motor drive module is working;

[0019] The brushless motor drive module is used to receive the control signal from the master control module to select whether to drive the brushless motor to work;

[0020] The master control module is connected to the brushless motor drive module.

[0021] As a further solution of the present invention: the master control module includes a chip U2, the model of the chip U2 is CMS32M6534, and the pins 20, 21, 22, 24, 27, and 30 of the chip U2 are connected to the brushless motor drive module.

[0022] As a further solution of the present invention: the master control management unit further includes:

[0023] The first temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module;

[0024] The power detection module is used to detect the battery pack power and feed back to the main control module;

[0025] The power display module is used to receive control from the main control module and display the battery pack power information;

[0026] The master control module is connected to the first temperature detection module, the power detection module, and the power display module.

[0027] As a further solution of the present invention: the emergency starting unit includes:

[0028] The main control module is used to select whether to disconnect the high current protection module and whether to drive the warning circuit module based on the input signal;

[0029] Warning circuit module, used for alarm prompts during operation;

[0030] High current protection module, used to build the power supply circuit of battery pack and car battery;

[0031] Polarity detection module, used to detect whether the polarity of the car battery is reversed and feedback the signal to the main control module;

[0032] The overcurrent detection module is used to detect whether the current output from the car battery exceeds the current threshold and feed back to the main control module;

[0033] The voltage detection module is used to detect the voltage of the battery pack and feed it back to the main control module;

[0034] The second temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module;

[0035] The main control module is connected to the high current protection module, the polarity detection module, the overcurrent detection module, the voltage detection module, the warning circuit module, and the second temperature detection module.

[0036] As a further solution of the present invention: the battery pack and the BMS module are connected.

[0037] Compared with the existing technology, the beneficial effects of the present invention are: the PD fast charging protocol module of the present invention contains a variety of fast charging and discharging protocols, supports the fast charging of a variety of digital products and supports the fast charging of a variety of fast charging charger products; compared with the traditional emergency starting power supply, the present invention adopts a brushless motor drive module, which is compatible with high-rate battery combinations, making the high-speed brushless motor run more smoothly and quietly; an emergency starting unit is added to protect the circuit safety. When the emergency starting unit is not connected to the car battery, the emergency starting unit has no power and stops working, thereby not consuming energy and saving power. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of an emergency starting power supply with a high-speed brushless motor, fast charging, and intelligent protection.

[0039] Figure 2 This is the circuit diagram of the PD fast charging protocol module and the DC / DC buck-boost module.

[0040] Figure 3 This is the circuit diagram of the master control module and brushless motor drive module.

[0041] Figure 4 This is a partial circuit diagram of the emergency starting unit. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] See also Figure 1, an emergency starting power supply with a high-speed brushless motor, fast charging and intelligent protection, including:

[0044] Battery packs, used to store and output electrical energy,

[0045] PD fast charging unit, used to identify the fast charging protocol and select whether to control the battery pack to charge or discharge;

[0046] The master control management unit is used to select whether the brushless motor is working or not;

[0047] The emergency starting unit is used to detect power supply information when the battery pack is powering the car, and disconnect the power supply circuit when the power supply is abnormal;

[0048] The PD fast charging unit is connected to the master control management unit and the battery pack, the master control management unit is connected to the emergency start unit, and the emergency start unit is connected to the battery pack.

[0049] In this example: See Figure 1 , PD fast charging unit includes:

[0050] PD fast charging protocol module, used to identify the fast charging protocol to select and control the conduction state of the DC / DC buck-boost module;

[0051] DC / DC buck-boost module, used to complete DC voltage buck-boost conversion;

[0052] The PD fast charging protocol module is connected to the DC / DC buck-boost module.

[0053] Charging status:

[0054] When an external device is connected to the utility model through the TYPE-C interface to charge the utility model, the PD fast charging protocol module will identify whether the charger has a fast charging protocol. When it contains the corresponding fast charging protocol, the main control module will display the charging status and current power through the power display module. At the same time, the DC / DC buck-boost module has a constant current and constant voltage function. When the power reaches 100%, the charging circuit enters a small current trickle charging mode until the battery pack is fully charged. When the battery temperature of the battery pack is lower than 0 degrees or higher than 50 degrees, the circuit prohibits charging (the first stability detection module detects the battery pack temperature information).

[0055] Discharge status:

[0056] After the external digital product is connected to the TYPE-C port, the PD fast charging protocol module will identify whether the external digital product has a fast charging protocol. If it contains the corresponding fast charging protocol, the PD fast charging protocol module will issue an instruction to control the DC / DC buck-boost module to output the voltage accepted by the external digital product. The master control module displays the discharge status and current power through the power display module. At the same time, the DC / DC buck-boost module has a constant current and constant voltage function. When a short circuit occurs in the load of the external digital product, the master control module will immediately turn off all discharge outputs. When the battery temperature of the battery pack is higher than 60 degrees, the master control module will turn off all discharge outputs to prevent discharge damage to the circuit and battery when the temperature is too high.

[0057] Fast charge and discharge protocol identification:

[0058] The TYPE-C interface is connected to the PD fast charging protocol module and the DC / DC buck-boost module. When the port is connected to the charger, it is in the charging state. When the port is connected to the digital product, it is in the discharging state. The PD fast charging protocol module automatically identifies the fast charging and discharging protocol code. After identifying the protocol, it transmits the signal to the master control module 1 through the DC / DC buck-boost module. After receiving the signal, the master control module 1 turns on the charging and discharging circuit and displays the current status (charging status, discharging status).

[0059] In this example: See Figure 2 The PD fast charging protocol module includes chip U1. The model of chip U1 is SW6306. Pins 23, 24, and 25 of chip U1 are connected to the master control management unit, and pins 52, 53, 55, 57, 59, and 60 of chip U1 are connected to the DC / DC buck-boost module.

[0060] As shown in the figure, the SDA, SCL, and INT communication signals of the PD fast charging protocol module are connected to the master control module. The PD fast charging protocol module's operating status is transmitted to the master control module, which then displays or disconnects the fast charging circuit based on the PD fast charging protocol module's operating status. When a PD charger is connected to the Type-C port, the PD fast charging protocol module shakes hands with the charger and sends a PDO protocol code to the charger. The charger receives the PD fast charging protocol code and determines the output voltage, which ranges from 5V / 9V / 12V / 15V / 20V. Once the PD fast charging protocol module detects the charger's input voltage, it enters the charging state and selectively outputs PWM control signals HG1, HG2, SW1, SW2, LG1, and LG2 to activate the DC / DC buck-boost module to charge the battery pack. Simultaneously, it sends charging status information to the master control module, which displays the current charging status upon receiving the PD fast charging protocol information. The master control module can adjust the registers of the PD fast charging protocol chip to configure the charging power. If the PD fast charging protocol module has an overcurrent or short circuit, the D fast charging protocol module will automatically shut down the DC / DC buck-boost circuit.

[0061] When a digital product is connected to the TYPE-C port, the PD protocol module shakes hands with the product and reads the product's PDO protocol code. The PD protocol uses the PDO code to determine the output voltage and current, which range from 5V / 9V / 12V / 15V / 20V. Once the PD protocol module detects the product's access voltage and current, it enters the discharge state and selectively outputs PWM control signals HG1, HG2, SW1, SW2, LG1, and LG2, turning on the DC / DC buck-boost module to discharge the battery to the TYPE-C port. The module also sends the discharge status information to the master control module, which displays the current discharge status after receiving the PD protocol information. The master control module can adjust the registers of the PD protocol chip to configure the discharge power. If the PD protocol module experiences an overcurrent or short circuit, it automatically shuts down the DC / DC buck-boost module.

[0062] In this example: See Figure 1 , the master control management unit includes:

[0063] The master control module is used to control whether the brushless motor drive module is working;

[0064] The brushless motor drive module is used to receive the control signal from the master control module to select whether to drive the brushless motor to work;

[0065] The master control module is connected to the brushless motor drive module.

[0066] Short press the power switch and the circuit enters standby mode. The battery display module shows the current battery status. Short press the power switch again and the master control module outputs a precise three-phase signal to the brushless motor drive module. The brushless motor drive module enters working mode, with low speed and forward rotation by default. Short press the power switch again and the brushless motor enters medium speed. Short press again to enter high speed. Short press the power switch again and the brushless motor enters shutdown mode, and the cycle continues. While the brushless motor is working, short press the forward / reverse switch to switch the brushless motor to reverse mode. In standby mode, long press the forward / reverse switch and the master control module outputs a DC motor drive signal. Short press the power switch again to control the speed and shut down the DC motor. When the brushless motor is operating normally, if the first temperature detection module detects that the brushless motor is overheated, the master control module immediately shuts down the drive signal and issues an alarm.

[0067] In this example: See Figure 3 The master control module includes chip U2, the model of chip U2 is CMS32M6534, and pins 20, 21, 22, 24, 27, and 30 of chip U2 are connected to the brushless motor drive module.

[0068] like Figure 3As shown, the chip U2 outputs control signals UL, VL, WL, UH, VH, and WH to control the conduction state of the six MOS tubes and output voltage signals U, V, and W to control the rotation of the brushless motor.

[0069] The voltage signals U, V, and W of the brushless motor are sampled, processed by resistors and capacitors, and then output to pins 32, 33, and 34 of chip U2 to grasp the working voltage of the brushless motor and adjust the voltage output to the brushless motor.

[0070] Press the power switch, and pin 37 of chip U1 detects the current battery pack voltage. LED1-LED5 displays the current power according to the battery pack voltage data. Press the power switch again, and the master control module outputs 6 PWM signals UL, VL, WL, UH, VH, and WH to control the brushless motor drive module. These 6 PWM signals use the FOC algorithm (magnetic field oriented control algorithm) to convert them into instructions to control 6 MOS tubes. The PWM technology generates three-phase interleaved pulse signals U, V, and W, which are transmitted to the brushless motor. The Hall sensor inside the brushless motor can detect the speed and position of the motor, and then feeds this information back to the master control module. The master control module adjusts the control parameters of the brushless motor according to the feedback information so that the motor always maintains the required speed and position. Short press the power switch again and the master control module outputs different speed signals to control the speed of the brushless motor. When the current of the brushless motor is too large, the current detection signal is amplified and input to pin 2 of chip U2. At this time, chip U2 will automatically adjust the PWM signal to reduce the current of the brushless motor. If pin 2 of chip U2 still detects an overcurrent signal after adjusting the PWM signal, it is determined that the brushless motor is faulty, and the brushless motor control signal is immediately turned off, and the display light flashes as an alarm. When pin 5 of chip U2 detects that the brushless motor temperature is high, chip U2 immediately turns off the brushless motor drive module and the display light flashes as an alarm.

[0071] In this example: See Figure 1 , the master control management unit also includes:

[0072] The first temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module;

[0073] The power detection module is used to detect the battery pack power and feed back to the main control module;

[0074] The power display module is used to receive control from the main control module and display the battery pack power information;

[0075] The master control module is connected to the first temperature detection module, the power detection module, and the power display module.

[0076] The power display module displays a range of 1%-100%. The power display module determines the power level by detecting the battery pack voltage by the power detection module. The 5 LED power lights display different power levels. When the battery pack voltage is between 12-16.4V, the power display module range is 1%-100%. In the discharge state, when the battery pack voltage is less than or equal to 12V, 1% power is displayed, and the light flashes. In the charging state, when the battery pack voltage is within 12-16.4V, the power range is 1%-99% corresponding to the current battery power, and the light flashes. When the battery pack voltage reaches 16.4V or above, the power level is displayed as 100% and stops flashing.

[0077] Press and hold the power switch button for 1.5 seconds, the master control module drives the lighting drive circuit to work, and the lighting is always on. Short press the power switch button again, the master control module drives the lighting to flash. Short press the lighting button again, the master control module drives the lighting SOS remote rescue signal light to flash, and short press again to turn off the lighting drive circuit.

[0078] In this example: See Figure 1 and Figure 4 , the emergency start unit includes:

[0079] The main control module is used to select whether to disconnect the high current protection module and whether to drive the warning circuit module based on the input signal;

[0080] Warning circuit module, used for alarm prompts during operation;

[0081] High current protection module, used to build the power supply circuit of battery pack and car battery;

[0082] Polarity detection module, used to detect whether the polarity of the car battery is reversed and feedback the signal to the main control module;

[0083] The overcurrent detection module is used to detect whether the current output from the car battery exceeds the current threshold and feed back to the main control module;

[0084] The voltage detection module is used to detect the voltage of the battery pack and feed it back to the main control module;

[0085] The second temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module;

[0086] The main control module is connected to the high current protection module, the polarity detection module, the overcurrent detection module, the voltage detection module, the warning circuit module, and the second temperature detection module.

[0087] The warning circuit module, high current protection module, polarity detection module, overcurrent detection module, voltage detection module, and second temperature detection module (including the first temperature detection module) are common protection circuits, and their structures will not be described in detail here.

[0088] The main control module manages the entire emergency starting unit. When the high-current protection module is connected to the car battery through the battery clamp output terminal, the emergency starting unit enters detection mode. If the voltage detection circuit detects that the battery pack voltage is 14V or above, it enters standby mode. At this time, if the high-current protection module detects that the car battery voltage is above 1V, the main control module sends a signal to the high-current protection module to turn on the conduction. The battery pack power is output to the car battery through the high-current protection module.

[0089] If the voltage detection module detects that the battery pack voltage is below 14V, it enters the prohibited conduction state. At this time, the main control module sends an alarm signal to the warning circuit module. When the high current protection module is connected to the polarity of the car battery in reverse, the polarity detection module sends a signal to the main control module. After receiving the signal, the main control module immediately enters the prohibited conduction state. At this time, the main control module sends a rapid and long-term alarm signal to the warning circuit module.

[0090] When the temperature of the high current protection module or the lithium-ion battery pack is higher than the set value, the second temperature detection module sends a signal to the main control module. The main control module immediately sends an alarm signal upon receiving the signal and shuts down and prohibits the output of the high current protection module.

[0091] When the high current protection module is connected to the negative pole of the external car battery through the positive pole of the battery clamp, and the negative pole of the battery clamp is connected to the positive pole of the external car battery, the polarity detection circuit outputs a low level to the main control module. After receiving the polarity detection low level signal, the main control module determines that the polarity of the battery clamp is reversed, and the main control module prohibits the output of the ON high level signal and enters the alarm state. Figure 4 At this time, the transistor is cut off, and the relay stops working, and the control switch is turned off, so that the circuit of the battery pack, switch, and external car battery is disconnected;

[0092] The red LED lights up steadily and the buzzer sounds rapidly. The alarm state can only be released by removing the battery clamp. The main control module sends the positive connection status and alarm status information to the master control module, which displays the status information of the emergency start unit.

[0093] When the high-current protection module is turned on, the main control module constantly monitors the battery pack temperature information. When the second temperature detection module detects that the battery pack temperature is too high, the main control module immediately disconnects the ON high-level signal and turns off the high-current protection module output. At the same time, the main control module sends an alarm signal, the red LED light flashes, the buzzer sounds a warning, and over-temperature protection is displayed. When the voltage detection module detects that the battery pack voltage is too high, the main control module immediately disconnects the ON high-level signal and turns off the high-current protection module output. At the same time, the main control module sends an alarm signal, the red LED light flashes, the buzzer sounds a warning, and overvoltage protection is displayed. Similarly, in the event of overcurrent, when the overcurrent detection module detects that the battery pack voltage is too high, the main control module immediately disconnects the ON high-level signal and turns off the high-current protection module output. At the same time, the main control module sends an alarm signal, the red LED light flashes, the buzzer sounds a warning, and overvoltage protection is displayed.

[0094] In this example: See Figure 1 , battery pack and BMS module connection.

[0095] BMS stands for Battery Management System. It is a system used to manage, monitor, and protect battery packs and is widely used in electric vehicles, energy storage systems, portable electronic devices, and other fields.

[0096] The PD fast charging protocol module of this utility model contains multiple fast charging and discharging protocols, supports the fast charging of multiple digital products and supports the fast charging of multiple fast charging charger products; compared with the traditional emergency starting power supply, the utility model adopts a brushless motor drive module, which is compatible with high-rate battery combinations, making the high-speed brushless motor run more smoothly and quietly; an emergency starting unit is added to protect the circuit safety. When the emergency starting unit is not connected to the car battery, the emergency starting unit has no power and stops working, thereby not consuming energy and saving power.

[0097] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

[0098] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An emergency starting power supply with a high-speed brushless motor, fast charging and intelligent protection, characterized in that: This emergency starting power supply with high-speed brushless motor, fast charging and intelligent protection includes: Battery packs, used to store and output electrical energy, PD fast charging unit, used to identify the fast charging protocol and select whether to control the battery pack to charge or discharge; The master control management unit is used to select whether the brushless motor is working or not; The emergency starting unit is used to detect power supply information when the battery pack is powering the car, and disconnect the power supply circuit when the power supply is abnormal; The PD fast charging unit is connected to the master control management unit and the battery pack, the master control management unit is connected to the emergency start unit, and the emergency start unit is connected to the battery pack.

2. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 1 is characterized in that: The PD fast charging unit includes: PD fast charging protocol module, used to identify the fast charging protocol to select and control the conduction state of the DC / DC buck-boost module; DC / DC buck-boost module, used to complete DC voltage buck-boost conversion; The PD fast charging protocol module is connected to the DC / DC buck-boost module.

3. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 2 is characterized in that: The PD fast charging protocol module includes chip U1. The model of chip U1 is SW6306. Pins 23, 24, and 25 of chip U1 are connected to the master control management unit, and pins 52, 53, 55, 57, 59, and 60 of chip U1 are connected to the DC / DC buck-boost module.

4. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 1 is characterized in that: The master control management unit includes: The master control module is used to control whether the brushless motor drive module is working; The brushless motor drive module is used to receive the control signal from the master control module to select whether to drive the brushless motor to work; The master control module is connected to the brushless motor drive module.

5. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 4 is characterized in that: The master control module includes chip U2, the model of chip U2 is CMS32M6534, and pins 20, 21, 22, 24, 27, and 30 of chip U2 are connected to the brushless motor drive module.

6. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 4 or 5, characterized in that: The master control management unit also includes: The first temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module; The power detection module is used to detect the battery pack power and feed back to the main control module; The power display module is used to receive control from the main control module and display the battery pack power information; The master control module is connected to the first temperature detection module, the power detection module, and the power display module.

7. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 1 is characterized in that: The emergency start unit includes: The main control module is used to select whether to disconnect the high current protection module and whether to drive the warning circuit module based on the input signal; Warning circuit module, used for alarm prompts during operation; High current protection module, used to build the power supply circuit of battery pack and car battery; Polarity detection module, used to detect whether the polarity of the car battery is reversed and feedback the signal to the main control module; The overcurrent detection module is used to detect whether the current output from the car battery exceeds the current threshold and feed back to the main control module; The voltage detection module is used to detect the voltage of the battery pack and feed it back to the main control module; The second temperature detection module is used to detect the temperature information of the battery pack and feed it back to the main control module; The main control module is connected to the high current protection module, the polarity detection module, the overcurrent detection module, the voltage detection module, the warning circuit module, and the second temperature detection module.

8. The emergency starting power supply with high-speed brushless motor fast charging intelligent protection according to claim 1 is characterized in that: Battery pack and BMS module connection.

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