CN113036855B

CN113036855B - Lead-acid type multifunctional emergency power supply

Info

Publication number: CN113036855B
Application number: CN202110267742.0A
Authority: CN
Inventors: 楼森燎; 杨红梁
Original assignee: Ningbo Meilei Electric Appliance Co ltd
Current assignee: Ningbo Meilei Electric Appliance Co ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2023-03-31
Anticipated expiration: 2041-03-12
Also published as: CN113036855A

Abstract

The invention discloses a lead-acid multifunctional emergency power supply which is characterized by comprising a central control module, wherein the central control module is respectively connected with a charging circuit, an electric quantity and information display module, a spotlight module, a working lamp and warning lamp module, a USB output module, a shutdown zero-power control circuit, a switch module, a DC12V output module and an automobile battery connection inspection module, the charging circuit is respectively connected with an AC charging module, a DC charging module and a lead-acid storage battery, the spotlight module, the working lamp and warning lamp module, the USB output module and the DC12V output module are sequentially connected and connected into a starting output end, the starting output end is connected with the lead-acid storage battery through a starting switch, and the automobile battery connection inspection module is connected with the starting output end. The automobile battery connection inspection device is provided with an automobile battery connection inspection function, can display information such as electric quantity and the like, is provided with a spotlight and a warning lamp, can meet the charging requirement of a USB, and is provided with a 12V voltage output module.

Description

Lead-acid type multifunctional emergency power supply

Technical Field

The invention relates to an emergency power supply technology, in particular to a lead-acid multifunctional emergency power supply.

Background

When the industry and the civilian use are in an emergency state, especially when major disaster relief work occurs, the vehicle, the yacht, the engine and other equipment cannot be started normally, and power failure is caused to people due to the fact that power is cut off under the special condition of nature, so that when people cannot work normally and live normally, the independent power supply which is responsible for providing emergency lighting and power supply is called an emergency power supply.

CN211321309U discloses a one-key self-locking power on/off circuit, which comprises: the device comprises a key switch circuit, a shutdown detection circuit, a self-locking loop circuit and a main control module; the key switch circuit comprises a key SW3, and the shutdown detection circuit is connected between the power supply anode BAT + and the input end of the main control module in series through the key SW 3; the self-locking loop circuit comprises an MOS (metal oxide semiconductor) tube Q4, a triode Q7 and a plurality of resistors, wherein a collector of the triode Q7 is connected with a grid electrode of the MOS tube Q4 through the resistors, a source electrode of the MOS tube Q4 is connected with a power supply anode BAT +, and a drain electrode of the MOS tube Q4 is connected with a base electrode of the triode Q7 through the resistors, so that a self-locking loop is formed.

Lead acid formula emergency power supply fails to be equipped with car battery and connects inspection function among the prior art, can not show information such as its electric quantity, does not be equipped with spotlight and warning light, can not satisfy USB's charging demand, does not set up 12V voltage output module. The lead-acid emergency power supply has potential safety hazards in the use process and is not strong in functionality.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a lead-acid multifunctional emergency power supply which has an automobile battery connection checking function, can display information such as electric quantity and the like, is provided with an LED working illuminating lamp, a spotlight and a warning lamp, can meet the charging requirement of a USB and is provided with a 12V voltage output module.

The purpose of the invention is realized by the following technical scheme.

The utility model provides a multi-functional emergency power of lead acid formula, its characterized in that includes central control module, central control module is connected the inspection module with charging circuit, electric quantity and information display module, spotlight module, working lamp and warning light module, USB output module, shutdown zero-power control circuit, switch module, DC12V output module and car battery respectively, charging circuit is connected with AC charging module, DC charging module and lead acid battery respectively, spotlight module, working lamp and warning light module, USB output module and DC12V output module connect gradually, and insert the start-up output, the start-up output is connected with lead acid battery through starting switch, car battery connects the inspection module and is connected with the start-up output.

The central control module is connected with an inflator pump and an inverter, and the DC12V output module is connected to the starting output end through the inflator pump and the inverter.

The AC charging module is a power supply with wide input working voltage of 100-240 Vac and output DC15V, and the external part is connected to the commercial power through an AC connecting wire, and the internal DC connecting wire is connected to the main control board to charge the storage battery through the charging and control circuit.

The DC charging module is a DC55-2.5 socket, the interior of which is directly connected to the main control board, and the exterior of which introduces the DC voltage output by the cigarette ignition hole of the automobile through the plug connecting wire of the cigarette lighter to charge the storage battery through the charging and control circuit.

The charging circuit comprises charging switches Q1, Q6, R7 and R8, temperature detection RT1, R16 and C7, constant-current and constant-voltage regulation IC2 and periphery, RH4, RH5, CH-CC and CH-SW, reverse connection prevention Q8, R13, R89 and BUS-BV, a control unit and a connector, wherein the connector is connected with a lead-acid storage battery, and RT1 is attached to the same shell environment with the storage battery to sense the storage battery and the ambient temperature in real time; the charging voltage access circuit is used for starting Q8 to complete starting charging self-checking and temperature detection through VIN, R26, R27, C9, D4, RT1, R16, C7 and the control unit, the MCU controls output CH-SW and CH-CC to start Q1 charging when charging is needed, and according to different environmental temperatures, the RT1 temperature sensor which is pasted in the same shell environment with the storage battery adjusts the CH-SW and CH-CC values in real time after being processed by the MCU along with the real-time change of the temperature so that the charging curve is close to the ideal curve of the storage battery.

The electric quantity and information display module: and the 0805 double-color patch LED is adopted to control the display state by a central control module.

The shutdown zero-power control circuit comprises: the device comprises a key switch circuit, a shutdown detection circuit, a self-locking loop circuit and a main control module; the key switch circuit comprises a key SW1, the key SW1 is connected with a power supply anode BT +, and the shutdown detection circuit is connected between the power supply anode BT + and the input end of the main control module in series through the key SW 1; the self-locking loop circuit comprises an MOS (metal oxide semiconductor) tube Q4, a triode Q7, a resistor R37, a resistor R38 and a resistor R41, wherein a collector of the triode Q7 is connected with a grid electrode of the MOS tube Q4 through the resistor R37, a source electrode of the MOS tube Q4 is connected with a power supply positive electrode BT +, the resistor R38 and the resistor R41 which are sequentially connected in series are connected between a drain electrode of the MOS tube Q4 and a base electrode of the triode Q7 to form a self-locking loop, and a common end of the resistor R38 and the resistor R41 is connected to an output end of the main control module; the key SW1 is connected to the base electrode of the triode Q7 through a divider resistor, when the key SW1 is pressed, the triode Q7 is in saturated conduction, the MOS tube is conducted, and the starting is realized; pressing the key SW1 again, detecting the voltage by the shutdown detection circuit and transmitting the voltage to the main control module, controlling the output end of the main control module to output a low level, stopping the triode Q7, and disconnecting the MOS transistor Q4 to complete shutdown; the shutdown detection circuit comprises a resistor R20, a resistor R22 and a capacitor C8, wherein the resistor R20 is connected between the input end of the main control module and the key SW1 in series, and the resistor R22 and the capacitor C8 are both connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected in parallel between the grid electrode and the source electrode of the MOS tube Q4; the emitting electrode of the triode Q7 is grounded, and a resistor R44 is connected in series between the base electrode and the emitting electrode of the triode Q7; a resistor R45 is connected in series between the common end of the resistor R38 and the resistor R41 and the ground; the drain of the MOS transistor Q4 is connected to the VDD terminal of the main control module through a diode D6, and the drain of the MOS transistor Q4 is connected to the power supply cathode BT-through a resistor R28.

The lead-acid storage battery is an AGM high-performance starting type battery.

When the automobile battery connection checking module needs to be powered by the emergency power supply to start an automobile, a power switch of the emergency power supply is turned on, the anode and the cathode of an alligator clip handle of the emergency power supply are respectively connected with the anode and the cathode of the automobile battery, and at the moment, the automobile battery connection checking module automatically detects the connection state and inputs the voltage state signal of the automobile battery into the central control module to be processed in real time.

The starting switch is a mechanical manual rotating switch.

The maximum air pressure value of the inflator is 150psi, and the inflation quantity is displayed through an air pressure meter.

The inverter is configured to output 110V and 230V alternating voltage according to the capacity of the battery, wherein the 100-500W alternating voltage is output.

USB output module includes 1 USB socket and CX8825 step-down type DC-DC converter, FP6601Q of taking plug to discern the chip that fills soon, and central control module is established and is distinguished USB and insert and open USB output, and the USB plug is extracted MCU control and is closed USB.

The working lamp and the warning lamp module use a high-lumen-value LED as a main light source, and the strong light, weak light, SOS and red flash warning modes of a spotlight are switched by an OC5010 built-in 5A power MOS switch voltage-reduction type high-precision and high-brightness LED constant current driving controller through MCU output PWM signal regulation control.

The spotlight module uses a 5050 ceramic substrate packaged LED as a main light source, and uses an OC5010 built-in 5A power MOS switch buck type high-precision high-brightness LED constant current driving controller to realize the switching of high beam, low beam and SOS modes of a spotlight through the regulation and control of MCU output PWM signals.

Compared with the prior art, the invention has the advantages that: the automobile battery connection inspection device is provided with an automobile battery connection inspection function, can display information such as electric quantity and the like, is provided with a spotlight and a warning lamp, can meet the charging requirement of a USB, and is provided with a 12V voltage output module.

The invention provides an emergency starting power supply with an integrated automobile emergency starting function and various 12V powers, which comprises various protection functions of emergency connection, and prompts the display state of each function through the information of an LED indicator lamp, wherein the emergency power supply is provided with emergency illuminating lamps of far light and near light, emergency illuminating lamps of strong light and weak light, a distress illuminating lamp of emergency SOS, an emergency warning illuminating lamp, a USB port capable of meeting USB charging requirements and inserted with a plug, a power supply with 12V output and a lead-acid battery type multifunctional emergency power supply.

Drawings

Fig. 1 is a schematic diagram of the circuit structure of the present invention.

Fig. 2 is a schematic diagram of a charging circuit.

Fig. 3 is a schematic circuit diagram of the central control module.

Fig. 4 is a schematic circuit diagram of the power and information display module.

Fig. 5 is a circuit schematic of a switch module.

Fig. 6 is a schematic diagram of a shutdown zero power consumption control circuit.

Fig. 7 is a schematic circuit diagram of an automotive battery connection inspection module.

FIG. 8 is a schematic circuit diagram of a USB output module.

Fig. 9 is a schematic circuit diagram of the working lamp and warning lamp module.

Fig. 10 is a schematic diagram of a spotlight module circuit.

FIG. 11 is an assembly view of example 1.

FIG. 12 is an assembly drawing of embodiment 2.

In the figure: the lighting device comprises a front shell 1, a surface light key 2, a spotlight key 3, a switch key 4, a control panel 5, a large switch assembly 6, a control main board 7, a spotlight reflector 8, a spotlight light-transmitting cover 9, a boat-shaped switch 10, a cigarette lighter assembly 11, a cigarette lighter cover 12, a switch side plate 13, a charger pressure plate 14, an internal charger 15, a rear shell 16, an inverter assembly 17, a positive electrode handle clamp wire 18, an inverter fixing box 19, an inverter power supply wire 20, a wire pressure plate 21, a clamp seat 22, a negative electrode handle clamp wire 23, a lead-acid battery 24, a battery connecting wire 25, a battery hoop 26, a side cover plate 27, a bottom plate 28, an air pump lower shell 29, an air pump motor 30, an air pump hoop 31, an air pump upper shell 32, an air meter pressure plate 33, a lighting plate 34, a surface light reflecting cover 35, a surface light-transmitting cover 36, a battery 37, a spotlight lighting plate 38 and a rear cover plate 39.

Detailed Description

The invention is described in detail below with reference to the drawings and specific examples.

Example 1

As shown in fig. 1, a lead-acid multifunctional emergency power supply is characterized by comprising a central control module, wherein the central control module is respectively connected with a charging circuit, an electric quantity and information display module, a spotlight module, a working lamp and warning lamp module, a USB output module, a shutdown zero-power control circuit, a switch module, a DC12V output module and an automobile battery to form a checking module, the charging circuit is respectively connected with an AC charging module, a DC charging module and a lead-acid storage battery, the spotlight module, the working lamp and warning lamp module, the USB output module and the DC12V output module are sequentially connected and connected into a starting output end, the starting output end is connected with the lead-acid storage battery through a starting switch, and the automobile battery is connected with the checking module and is connected with the starting output end.

The central control module is connected with an inflating pump and an inverter, and the DC12V output module is connected to the starting output end through the inflating pump and the inverter.

The DC charging module is a DC55-2.5 socket, the interior of which is directly connected to the main control panel, and the exterior of which introduces the DC voltage output by the cigarette lighting hole of the automobile through a connecting line of a cigarette lighter plug and charges the storage battery through the charging and control circuit.

As shown in fig. 2, the charging circuit comprises charging switches Q1, Q6, R7, R8, temperature detection RT1, R16, C7, constant current and constant voltage regulation IC2 and periphery, RH4, RH5, CH-CC, CH-SW, reverse connection prevention Q8, R13, R89, BUS-BV, a control unit and a connector, wherein the connector is connected with a lead-acid storage battery, and RT1 is attached to the storage battery in the same shell environment to sense the storage battery and the ambient temperature in real time; the charging voltage access circuit is used for starting Q8 to complete starting charging self-checking and temperature detection through VIN, R26, R27, C9, D4, RT1, R16, C7 and the control unit, the MCU controls output CH-SW and CH-CC to start Q1 charging when charging is needed, and according to different environmental temperatures, the RT1 temperature sensor which is pasted in the same shell environment with the storage battery adjusts the CH-SW and CH-CC values in real time after being processed by the MCU along with the real-time change of the temperature so that the charging curve is close to the ideal curve of the storage battery.

As shown in fig. 3, the central control module is linked with each module to realize voltage, current, temperature and other detection, control the operation of each functional module and state detection.

As shown in fig. 4, the electric quantity and information display module: the 0805 double-color patch LED is adopted to control the display state by the central control module, and the control and display characteristics are shown in the following table:

as shown in fig. 5, the switch module: the design of the touch button switch controls various functions of the emergency power supply through the switch.

In electronic products, there are two general ways of turning on and off the electronic device, one of which is: the self-locking switch key is adopted, so that the circuit is simple and easy to realize, but the circuit is easy to shake when being started, and the power supply of the circuit is influenced after the contact resistance is increased after the mechanical switch is used for a long time; the other is as follows: the single-key switch is adopted, the on-off control chip of the circuit is always in a working state, the action of the on-off button is continuously monitored, and when the on-off button is triggered, a starting or shutdown command is executed. For some portable battery-powered devices, the conventional on-off method still has the problem of static power consumption when the device is in an off state, and because the on-off control chip still works, part of circuits still work, and the capacity of part of batteries is inevitably consumed. The capacity of the part seems to be negligible, but in practical application, the capacity is one of important factors influencing the battery endurance time, and the part is not suitable for electronic equipment such as a storage battery, and particularly, the electric energy of the storage battery can be exhausted when the equipment is not used for a long time. In order to solve the technical problems, a one-key self-locking on-off circuit is designed to solve the technical problems.

As shown in fig. 6, the shutdown zero power consumption control circuit includes: the device comprises a key switch circuit, a shutdown detection circuit, a self-locking loop circuit and a main control module; the key switch circuit comprises a key SW1, the key SW1 is connected with a power supply anode BT +, and the shutdown detection circuit is connected between the power supply anode BT + and the input end of the main control module in series through the key SW 1; the self-locking loop circuit comprises an MOS (metal oxide semiconductor) transistor Q4, a triode Q7, a resistor R37, a resistor R38 and a resistor R41, wherein a collector of the triode Q7 is connected with a grid of the MOS transistor Q4 through the resistor R37, a source of the MOS transistor Q4 is connected with a positive power supply BT +, the resistor R38 and the resistor R41 which are sequentially connected in series are connected between a drain of the MOS transistor Q4 and a base of the triode Q7 to form a self-locking loop, and a common end of the resistor R38 and the resistor R41 is connected to an output end of the main control module; the key SW1 is connected to the base electrode of the triode Q7 through a divider resistor, when the key SW1 is pressed, the triode Q7 is in saturated conduction, the MOS tube is conducted, and the starting is realized; when the key SW1 is pressed again, the shutdown detection circuit detects voltage and transmits the voltage to the main control module, the main control module controls the output end to output low level, the triode Q7 is cut off, the MOS transistor Q4 is disconnected, and shutdown is completed; the shutdown detection circuit comprises a resistor R20, a resistor R22 and a capacitor C8, wherein the resistor R20 is connected between the input end of the main control module and the key SW1 in series, and the resistor R22 and the capacitor C8 are both connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected in parallel between the grid electrode and the source electrode of the MOS tube Q4; the emitting electrode of the triode Q7 is grounded, and a resistor R44 is connected in series between the base electrode and the emitting electrode of the triode Q7; a resistor R45 is connected between the common end of the resistor R38 and the resistor R41 and the ground in series; the drain of the MOS transistor Q4 is connected to the VDD terminal of the main control module through a diode D6, and the drain of the MOS transistor Q4 is connected to the power supply cathode BT-through a resistor R28.

The lead-acid storage battery is an AGM high-performance starting type battery.

As shown in figure 7, when the automobile is started by the automobile battery connection checking module through power supply of the emergency power supply, a power switch of the emergency power supply is turned on, the anode and the cathode of an alligator clip of an emergency power supply handle are respectively connected with the anode and the cathode of the automobile battery, and at the moment, the automobile battery connection checking module automatically detects the connection state and the voltage state signal of an automobile battery is input into the central control module to be processed in real time.

The starting switch is a mechanical manual rotating switch.

The maximum air pressure value of the inflator pump is 150psi, and the inflation quantity is displayed through a barometer.

As shown in fig. 8, the USB output module includes 1 USB socket with plug identification, CX8825 step-down DC-DC converter, FP6601Q quick-charging identification chip, the central control module identifies that the USB is inserted into the central control module to start the USB output, and the USB plug is pulled out to control the MCU to close the USB.

CX8825 input withstand voltage can reach 36V, and can realize accurate constant voltage and constant current step-down type DC-DC converter, possess high performance load response and input voltage response ability, accurate constant voltage and constant current control loop realize minimum load regulation rate and linear regulation rate simultaneously, need not external compensation, can rely on self built-in stable loop to realize constant current and constant voltage control, possess cable voltage drop compensation function simultaneously

FP6601Q is QC3.0, QC2.0 and Hua is the quick charge of missing (FCP), and the recognition chip is filled soon to three stars AFC, and under the circumstances that supports the quick charge protocol, FP6601Q also can automatic identification and full speed charge to the cell-phone of the ordinary 5V charging protocol on the market: apple, samsung, BC1.2 protocol. FP6601Q is also the most commonly used in the present fast charge protocol chip, and is applied to: a charger, an in-vehicle charger, a portable power source, a wall charger, and the like. FP6601Q has now optimized to the withstand voltage of D +. D-foot, has improved to 14V, can guarantee when VBUS and D-, D + false triggering or plug-in, can not cause IC damage, output voltage is unusual.

As shown in fig. 9, the working lamp and warning lamp module uses a high lumen value LED as a main light source, and outputs a PWM signal through the MCU to adjust and control the OC5010, which is a built-in 5A power MOS switch buck high-precision, high-brightness LED constant current driving controller, so as to realize the switching of the spotlight bright light, dim light, SOS, and red flash warning modes. The system adopts an inductive current hysteresis control mode, has very fast response to load transient and has high suppression ratio to input voltage; the inductive current ripple is 20%, and the highest working frequency can reach 1MHz. Has the advantages of stable output brightness, no stroboflash and the like.

As shown in fig. 10, in the spotlight module, a 5050 ceramic substrate packaged LED is used as a main light source, and a OC5010 built-in 5A power MOS switch buck high-precision high-brightness LED constant current driving controller is used for adjusting and controlling a PWM signal output by an MCU to realize spotlight high beam, low beam and SOS mode switching. The system adopts an inductive current hysteresis control mode, has very fast response to load transient and has high suppression ratio to input voltage; the inductive current ripple is 20%, and the highest working frequency can reach 1MHz. Has the advantages of stable output brightness, no stroboflash and the like.

As shown in fig. 11, the fitting part includes: the lighting device comprises a front shell 1, a surface light key 2, a spotlight key 3, a switch key 4, a control panel 5, a large switch assembly 6, a control main board 7, a spotlight reflector 8, a spotlight light-transmitting cover 9, a ship-shaped switch 10, a cigarette lighter assembly 11, a cigarette lighter cover 12, a switch side plate 13, a charger pressure plate 14, an internal charger 15, a rear shell 16, an inverter assembly 17, a positive electrode handle clamp wire 18, an inverter fixing box 19, an inverter power supply wire 20, a wire pressure plate 21, a clamp seat 22, a negative electrode handle clamp wire 23, a lead-acid battery 24, a battery connecting wire 25, a battery hoop 26, a side cover plate 27, a bottom plate 28, an air pump lower shell 29, an air pump motor 30, an air pump hoop 31, an air pump upper shell 32, an air meter pressure plate 33, a light-emitting plate 34, a surface light reflecting cover 35 and a surface light-transmitting cover 36.

Example 2

As shown in fig. 2, the charging circuit comprises charging switches Q1, Q6, R7, R8, temperature detection RT1, R16, C7, constant current and voltage regulation IC2 and periphery, RH4, RH5, CH-CC, CH-SW, reverse connection prevention Q8, R13, R89, BUS-BV, a control unit and a connector, wherein the connector is connected with a lead-acid battery, and RT1 is attached to the same housing environment with the battery to sense the battery and the ambient temperature in real time; the charging voltage access circuit is used for starting Q8 to complete starting charging self-checking and temperature detection through VIN, R26, R27, C9, D4, RT1, R16, C7 and the control unit, the MCU controls output CH-SW and CH-CC to start Q1 charging when charging is needed, and according to different environmental temperatures, the RT1 temperature sensor which is pasted in the same shell environment with the storage battery adjusts the CH-SW and CH-CC values in real time after being processed by the MCU along with the real-time change of the temperature so that the charging curve is close to the ideal curve of the storage battery.

as shown in fig. 5, the switch module: the design of the touch button switch controls various functions of the emergency power supply through the on-off switch.

In electronic products, there are two general ways of turning on and off the electronic device, one of which is: the circuit is simple and easy to realize by adopting the self-locking switch key, but the circuit is easy to shake when the machine is started, and the power supply of the circuit is influenced after the contact resistance is increased after the mechanical switch is used for a long time; the other is as follows: the single-key switch is adopted, the on-off control chip of the circuit is always in a working state, the action of the on-off key is continuously monitored, and when the on-off key is triggered, a starting or shutdown command is executed. For some portable battery-powered devices, the conventional on-off mode has a problem of static power consumption when the device is in an off state, and because the on-off control chip is still working, part of circuits are still in a working state, and the capacity of part of batteries is inevitably consumed. The capacity of the part seems to be negligible, but in practical application, the capacity is one of important factors influencing the battery endurance time, and the part is not suitable for electronic equipment such as a storage battery, and particularly, the electric energy of the storage battery can be exhausted when the equipment is not used for a long time. In order to solve the technical problems, a one-key self-locking power on/off circuit is designed to solve the technical problems.

As shown in fig. 6, the shutdown zero power consumption control circuit includes: the device comprises a key switch circuit, a shutdown detection circuit, a self-locking loop circuit and a main control module; the key switch circuit comprises a key SW1, the key SW1 is connected with a power supply anode BT +, and the shutdown detection circuit is connected between the power supply anode BT + and the input end of the main control module in series through the key SW 1; the self-locking loop circuit comprises an MOS (metal oxide semiconductor) tube Q4, a triode Q7, a resistor R37, a resistor R38 and a resistor R41, wherein a collector of the triode Q7 is connected with a grid electrode of the MOS tube Q4 through the resistor R37, a source electrode of the MOS tube Q4 is connected with a power supply positive electrode BT +, the resistor R38 and the resistor R41 which are sequentially connected in series are connected between a drain electrode of the MOS tube Q4 and a base electrode of the triode Q7 to form a self-locking loop, and a common end of the resistor R38 and the resistor R41 is connected to an output end of the main control module; the key SW1 is connected to the base electrode of the triode Q7 through a divider resistor, when the key SW1 is pressed, the triode Q7 is in saturated conduction, the MOS tube is conducted, and the starting is realized; when the key SW1 is pressed again, the shutdown detection circuit detects voltage and transmits the voltage to the main control module, the main control module controls the output end to output low level, the triode Q7 is cut off, the MOS transistor Q4 is disconnected, and shutdown is completed; the shutdown detection circuit comprises a resistor R20, a resistor R22 and a capacitor C8, wherein the resistor R20 is connected between the input end of the main control module and the key SW1 in series, and the resistor R22 and the capacitor C8 are both connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected in parallel between the grid electrode and the source electrode of the MOS tube Q4; the emitting electrode of the triode Q7 is grounded, and a resistor R44 is connected in series between the base electrode and the emitting electrode of the triode Q7; a resistor R45 is connected between the common end of the resistor R38 and the resistor R41 and the ground in series; the drain electrode of the MOS transistor Q4 is connected to the VDD terminal of the main control module through a diode D6, and the drain electrode of the MOS transistor Q4 is connected to the power negative electrode BT-through a resistor R28.

The lead-acid storage battery is an AGM high-performance starting type battery.

As shown in fig. 7, when the emergency power supply is needed to supply power to start the automobile, the automobile battery connection checking module opens the power switch of the emergency power supply, and connects the anode and the cathode of the crocodile clip of the emergency power supply handle with the anode and the cathode of the automobile battery respectively, and at this moment, the automobile battery connection checking module automatically detects the connection state and inputs the voltage state signal of the automobile battery into the central control module for real-time processing.

The starting switch is a mechanical manual rotating switch.

As shown in fig. 8, the USB output module includes 1 USB socket with plug identification, CX8825 step-down DC-DC converter, FP6601Q quick-charging identification chip, the central control module identifies that the USB is inserted into the central control module to start the USB output, and the USB plug is pulled out to MCU control to close the USB.

FP6601Q is QC3.0, QC2.0 and Hua is the quick charge of missing (FCP), and the recognition chip is filled soon to three stars AFC, and under the circumstances that supports the quick charge protocol, FP6601Q also can automatic identification and full speed charge to the cell-phone of the ordinary 5V charging protocol on the market: apple, samsung, BC1.2 protocol. FP6601Q is also the most commonly used in the present fast charging protocol chip, and is applied to: a charger, an in-vehicle charger, a portable power source, a wall charger, and the like. FP6601Q has now optimized to the withstand voltage of D +. D-foot, has improved to 14V, can guarantee when VBUS and D-, D + false triggering or plug-in, can not cause IC damage, output voltage is unusual.

As shown in fig. 12, the fitting part includes: the front shell 1, a surface light key 2, a spotlight key 3, a switch key 4, a large switch assembly 6, a control mainboard 7, a spotlight reflector 8, a spotlight light-transmitting cover 9, a cigarette lighter assembly 11, a cigarette lighter cover 12, a charger pressure plate 14, a built-in charger 15, a rear shell 16, a positive electrode handle clamp wire 18, a clamp seat 22, a negative electrode handle clamp wire 23, a lead-acid battery 24, a battery hoop 26, a bottom plate 28, a surface light source lighting plate 34, a surface light reflector 35, a surface light-transmitting cover 36, a battery connecting sheet 37, a spotlight lighting plate 38 and a rear cover plate 39.

Claims

1. A lead-acid multifunctional emergency power supply is characterized by comprising a central control module, wherein the central control module is respectively connected with a charging circuit, an electric quantity and information display module, a spotlight module, a working lamp and warning lamp module, a USB output module, a shutdown zero-power control circuit, a switch module, a DC12V output module and an automobile battery, the charging circuit is respectively connected with an AC charging module, a DC charging module and a lead-acid storage battery, the spotlight module, the working lamp and warning lamp module, the USB output module and the DC12V output module are sequentially connected and connected into a starting output end, the starting output end is connected with the lead-acid storage battery through a starting switch, and the automobile battery connection inspection module is connected with the starting output end;

the charging circuit comprises a control unit, a charging switch unit, a constant-current and constant-voltage regulating unit, an anti-reverse connection unit and a temperature detection unit, wherein the anti-reverse connection unit is electrically connected with the control unit, the constant-current and constant-voltage regulating unit is electrically connected with the control unit and the anti-reverse connection unit, the charging switch unit is electrically connected with the control unit and the constant-current and constant-voltage regulating unit, and the temperature detection unit is electrically connected with the control unit;

the control unit comprises a microprocessor MCU, a diode D4, a capacitor C9, resistors R26 and R27, wherein the cathode of the diode D4 is electrically connected with a power supply end VDD, the anode of the diode D4 is electrically connected with the microprocessor MCU, the anode of the diode D4 is electrically connected with a grounding end VSS after being connected with the resistor R27 in series, the capacitor C9 is connected with the resistor R27 in parallel, and the anode of the diode D4 is electrically connected with a wiring end VIN after being connected with the resistor R26 in series;

the reverse connection prevention unit comprises a field effect transistor Q8, resistors R13, R89, RH4 and RH5 and a storage battery interface BAT1, wherein a pin 1 of the field effect transistor Q8 is electrically connected with a microprocessor MCU after being connected with a resistor R13 in series, a pin 1 of the field effect transistor Q8 is electrically connected with a ground terminal GND after being connected with a resistor R89 in series, a pin 3 of the field effect transistor Q8 is electrically connected with the microprocessor MCU, two ends of the storage battery interface BAT1 are respectively electrically connected with a terminal BT + and a pin 3 of the field effect transistor Q8, a pin 2 of the field effect transistor Q8 is electrically connected with a ground terminal CGND after being connected with a resistor RH4 in series, and the resistor RH5 is connected with the resistor RH4 in parallel;

the constant-current constant-voltage regulating unit comprises operational amplifiers IC2A and IC2B, a triode Q9, diodes D1, D2 and D3, voltage-stabilizing diodes Z1 and Z2, resistors R1, RH2, RH3, R10, R14, R17, R18, R19, R24 and R2, and capacitors CH1 and C5; a 5-pin series resistor RH1 of the operational amplifier IC2B is electrically connected with a grounding terminal CGND, a 5-pin series resistor R1 of the operational amplifier IC2B is electrically connected with a terminal CH-CC, a 6-pin series resistor RH3 of the operational amplifier IC2B is electrically connected with a grounding terminal GND, a 6-pin series capacitor CH1 of the operational amplifier IC2B is electrically connected with a grounding terminal CGND, a 7-pin series resistor RH2 of the operational amplifier IC2B is electrically connected with a cathode of a diode D1, an anode of the diode D1 is electrically connected with a 3-pin of the operational amplifier IC2A, a 4-pin of the operational amplifier IC2A is electrically connected with the grounding terminal CGND, an 8-pin of the operational amplifier IC2A is electrically connected with a terminal VIN, a 3-pin series resistor R10 of the operational amplifier IC2A is electrically connected with a terminal BT +, a 3-pin series resistor R18 of the operational amplifier IC2A is electrically connected with the grounding terminal CGND, the capacitor C5 is connected with a resistor R18 in parallel, a 2-pin series resistor R14 of the operational amplifier IC2A is electrically connected with a wiring terminal CH-SW, a 1-pin series resistor R17 of the operational amplifier IC2A is electrically connected with a positive electrode of a diode D3, a negative electrode of the diode D3 is electrically connected with a 3-pin of the operational amplifier IC2A, a 1-pin series resistor R2 of the operational amplifier IC2A is electrically connected with a grounding terminal GND, a 1-pin of the operational amplifier IC2A is electrically connected with a negative electrode of a voltage regulator diode Z2, a positive electrode series resistor R24 of the voltage regulator diode Z2 is electrically connected with a base electrode of a triode Q9, a collector electrode series resistor R19 of the triode Q9 is electrically connected with a power supply terminal VDD, a collector electrode of the triode Q9 is electrically connected with a microprocessor MCU, an emitter electrode of the triode Q9 is electrically connected with VSS, a positive electrode of the voltage regulator diode Z1 is electrically connected with a 1-pin of the operational amplifier IC2A, the negative electrode of the voltage stabilizing diode Z1 is electrically connected with the charging switch unit, the negative electrode of the diode D2 is electrically connected with the terminal BT +, and the positive electrode of the diode D2 is electrically connected with the charging switch unit; the terminal CH-CC and the terminal CH-SW are both electrically connected with the microprocessor MCU;

the charging switch unit comprises triodes Q1 and Q6, resistors R6, R7 and R8, a capacitor C1, an interface J1 and a DC-IN1, wherein a collector of the triode Q1 is electrically connected with an anode of a diode D2, a base of the triode Q1 is electrically connected with a cathode of a zener diode Z1 after being connected with a resistor R9 IN series, one end of the capacitor C1 is electrically connected with one end of the resistor R9 far away from the triode Q1, the other end of the capacitor C1 is electrically connected with a grounding terminal CGND, a collector of the triode Q6 is electrically connected with a base of the triode Q1, a base of the triode Q6 is electrically connected with a resistor R8 IN series and then is electrically connected with a terminal VIN, an emitter of the triode Q1 is electrically connected with the terminal VIN, one end of the resistor R6 is electrically connected with the terminal VIN, the other end of the resistor R6 is electrically connected with a pin 2 of the interface J1, a pin 1 of the interface DC-IN1 and an emitter of the triode Q6, the resistor R7 is connected with the resistor R6 IN parallel, a pin 1 of the interface J1 is electrically connected with the grounding terminal ND, and a pin 2 and a pin 3 of the interface DC-IN1 are electrically connected with the grounding terminal ND;

the temperature detection unit comprises a thermistor Rt1, a resistor R16 and a capacitor C7, wherein one end of the resistor R16 is electrically connected with a power supply end VDD, the other end of the resistor R16 is electrically connected with a microprocessor MCU, one end of the capacitor C7 is electrically connected with a grounding end VSS, the other end of the capacitor C7 is electrically connected with the microprocessor MCU, one end of the thermistor Rt1 is electrically connected with the microprocessor MCU, and the other end of the thermistor Rt1 is electrically connected with the grounding end VSS.

2. The lead-acid multifunctional emergency power supply of claim 1, wherein the central control module is connected with an inflator pump and an inverter, and the DC12V output module is connected to the starting output end through the inflator pump and the inverter.

3. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the AC charging module is a power supply with a wide input operating voltage of 100-240 Vac and an output DC15V, and the external is connected to the mains supply through an AC connection line, and the internal DC connection line is connected to the main control board through a charging and control circuit to charge the storage battery.

4. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the DC charging module is a DC55-2.5 socket, the inside of which is directly connected to the main control board, and the outside of which introduces the DC voltage output from the cigarette ignition hole of the automobile through the connection line of the cigarette lighter plug to charge the storage battery through the charging and control circuit.

5. The lead-acid multifunctional emergency power supply of claim 1 or 2, characterized in that the charging circuit comprises charging switches Q1, Q6, R7, R8, temperature detection RT1, R16, C7, constant current and constant voltage regulation IC2 and periphery, RH4, RH5, CH-CC, CH-SW, reverse connection prevention Q8, R13, R89, BUS-BV, a control unit and a connector, the connector is connected with the lead-acid storage battery, RT1 is attached to the storage battery in the same housing environment with the storage battery to sense the storage battery and the ambient temperature in real time; the charging voltage access circuit is started to enable Q8 to complete charging self-checking and temperature detection through VIN, R26, R27, C9, D4, RT1, R16, C7 and a control unit, the MCU controls output CH-SW and CH-CC to start Q1 charging when charging is needed, and according to different environmental temperatures, RT1 temperature sensors applied to the same environment with the storage battery are processed by the MCU along with temperature real-time changes and then real-time adjust CH-SW and CH-CC values to enable a charging curve to be close to an ideal curve of the storage battery.

6. The lead-acid multifunctional emergency power supply of claim 1 or 2, wherein the power and information display module: and the 0805 double-color patch LED is adopted to control the display state by a central control module.

7. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the shutdown zero-power control circuit comprises: the device comprises a key switch circuit, a shutdown detection circuit, a self-locking loop circuit and a main control module; the key switch circuit comprises a key SW1, the key SW1 is connected with a power supply anode BT +, and the shutdown detection circuit is connected between the power supply anode BT + and the input end of the main control module in series through the key SW 1; the self-locking loop circuit comprises an MOS (metal oxide semiconductor) transistor Q4, a triode Q7, a resistor R37, a resistor R38 and a resistor R41, wherein a collector of the triode Q7 is connected with a grid of the MOS transistor Q4 through the resistor R37, a source of the MOS transistor Q4 is connected with a positive power supply BT +, the resistor R38 and the resistor R41 which are sequentially connected in series are connected between a drain of the MOS transistor Q4 and a base of the triode Q7 to form a self-locking loop, and a common end of the resistor R38 and the resistor R41 is connected to an output end of the main control module; the key SW1 is connected to a base electrode of the triode Q7 through a divider resistor, when the key SW1 is pressed, the triode Q7 is in saturated conduction, the MOS tube is conducted, and the starting is realized; when the key SW1 is pressed again, the shutdown detection circuit detects voltage and transmits the voltage to the main control module, the main control module controls the output end to output low level, the triode Q7 is cut off, the MOS transistor Q4 is disconnected, and shutdown is completed; the shutdown detection circuit comprises a resistor R20, a resistor R22 and a capacitor C8, wherein the resistor R20 is connected between the input end of the main control module and the key SW1 in series, and the resistor R22 and the capacitor C8 are both connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected in parallel between the grid electrode and the source electrode of the MOS tube Q4; the emitting electrode of the triode Q7 is grounded, and a resistor R44 is connected in series between the base electrode and the emitting electrode of the triode Q7; a resistor R45 is connected in series between the common end of the resistor R38 and the resistor R41 and the ground; the drain electrode of the MOS transistor Q4 is connected to the VDD terminal of the main control module through a diode D6, and the drain electrode of the MOS transistor Q4 is connected to the power negative electrode BT-through a resistor R28.

8. Lead-acid type multifunctional emergency power supply according to claim 1 or 2, characterized in that the lead-acid storage battery is an AGM high-performance start-up type battery.

9. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the vehicle battery connection inspection module is configured to open a power switch of the emergency power supply when the emergency power supply is needed to start a vehicle, connect the anode and the cathode of the crocodile clip of the emergency power supply handle with the anode and the cathode of the vehicle battery, and input the signal of the vehicle battery connection inspection module automatically detecting the connection state and the voltage state of the vehicle battery into the central control module for real-time processing.

10. Lead-acid type multifunctional emergency power supply according to claim 1 or 2, characterized in that said start switch is a mechanical manual rotary switch.

11. The lead-acid multifunctional emergency power supply of claim 2, wherein the maximum air pressure value of the inflator is 150psi, and the inflation amount is displayed by a barometer.

12. The lead-acid multifunctional emergency power supply of claim 2, wherein the inverter is configured to output 110V and 230V ac voltage of 100-500W according to the capacity of the battery.

13. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the USB output module comprises 1 USB socket with plug identification, a CX8825 buck DC-DC converter, and an FP6601Q quick charge identification chip, the central control module identifies that a USB is inserted into the central control module to start a USB output, and the USB plug is pulled out to control the MCU to close the USB.

14. The lead-acid multifunctional emergency power supply according to claim 1 or 2, wherein the working lamp and indicator lamp module uses a high lumen value LED as a main light source, and the switching of spotlight strong light, weak light, SOS and red flash warning modes is realized by an OC5010 built-in 5A power MOS switch buck high-precision and high-brightness LED constant current driving controller through MCU output PWM signal regulation control.

15. The lead-acid multifunctional emergency power supply of claim 1 or 2, wherein the spotlight module uses 5050 ceramic substrate packaged LED as a main light source, and the spotlight high beam, low beam and SOS modes are switched by an OC5010 built-in 5A power MOS switch buck high-precision and high-brightness LED constant current driving controller through MCU output PWM signal regulation control.