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CN113036856A - Lithium battery type multifunctional emergency power supply - Google Patents

Lithium battery type multifunctional emergency power supply Download PDF

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Publication number
CN113036856A
CN113036856A CN202110270176.9A CN202110270176A CN113036856A CN 113036856 A CN113036856 A CN 113036856A CN 202110270176 A CN202110270176 A CN 202110270176A CN 113036856 A CN113036856 A CN 113036856A
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CN
China
Prior art keywords
module
temperature
circuit
resistor
lithium
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Pending
Application number
CN202110270176.9A
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Chinese (zh)
Inventor
楼森燎
杨红梁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Meilei Electric Appliance Co ltd
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Ningbo Meilei Electric Appliance Co ltd
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Application filed by Ningbo Meilei Electric Appliance Co ltd filed Critical Ningbo Meilei Electric Appliance Co ltd
Priority to CN202110270176.9A priority Critical patent/CN113036856A/en
Publication of CN113036856A publication Critical patent/CN113036856A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00304Overcurrent protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309Overheat or overtemperature protection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048Detection of remaining charge capacity or state of charge [SOC]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/30Charge provided using DC bus or data bus of a computer

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a lithium battery type multifunctional emergency power supply, which comprises a central control module, wherein the central control module is respectively connected with a starting display module, an electric quantity and information display module, a wireless charging module, a spotlight module, a working lamp and warning lamp module, a bidirectional USB module and a shutdown zero-power consumption control circuit, the wireless charging/forcing/starting switch control module, the serial lithium battery protection module, the temperature protection control module, the starting output circuit, the safety circuit and the bulging detection module are connected, the serial lithium battery protection module is connected with the lithium battery pack and the battery pack low-temperature heating protection module, the starting output circuit is connected with the serial lithium battery protection module, the serial lithium battery protection module is connected with the shutdown zero-power-consumption control circuit, and the spotlight module, the working lamp and warning lamp module, the bidirectional USB module and the safety circuit are sequentially connected. The USB charging device is provided with charging overcurrent protection, can display information such as electric quantity and the like, is provided with a spotlight and a warning lamp, and can meet the charging requirement of the USB.

Description

Lithium battery type multifunctional emergency power supply
Technical Field
The invention relates to an emergency power supply technology, in particular to a lithium battery type multifunctional emergency power supply.
Background
When the industry and the civilian use are in an emergency state, particularly when major disaster relief work occurs, the vehicle, the yacht, the engine and other equipment cannot be started normally, and under the special condition caused by the nature, power failure is caused to people, so that the independent power supply which is responsible for providing emergency lighting and power supply is called an emergency power supply when the people cannot work normally and live normally.
CN205029372U discloses a lithium cell emergency power source, lithium cell: providing power supply for internal equipment and outputting a large-current power supply for a large-current relay; a large-current relay: starting the automobile; a controller; controlling charging current and voltage for the lithium battery; controlling the large-current relay to be switched on and off, and controlling the USB socket and the illuminating lamp to be switched on and off; a temperature sensor; transmitting the detected data to a controller; the sensor detects the temperature inside the lithium battery at any time; a charging adapter; providing charging power to the device.
CN211088457U discloses a self-checking two switch lithium cell emergency power source low temperature heating circuit, includes: the device comprises a power supply circuit, a temperature detection circuit, a protection circuit, a main control module, and a switch control circuit, a heating circuit and a fault detection circuit which are sequentially connected with the main control module; the temperature detection circuit is connected with the main control module and transmits a detected temperature signal to the main control module, and the main control module controls the switch control circuit to be conducted according to the temperature signal so as to conduct the heating circuit and the power supply circuit for heating; the protection circuit is connected between the main control module and the switch control circuit.
CN211321309U discloses a one-key self-locking on-off circuit, which 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 SW3, and the shutdown detection circuit is connected in series between the power supply anode BAT + and the input end of the main control module through the key SW 3; the self-locking loop circuit comprises an MOS 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 to form a self-locking loop.
The lithium battery emergency power supply in the technical scheme is not provided with charging overcurrent protection, cannot display information such as electric quantity, is not provided with a spotlight and a warning light, cannot meet the charging requirement of the USB, and is not provided with a safety circuit and bulging detection. The lithium battery 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 lithium-ion battery type multifunctional emergency power supply.
The purpose of the invention is realized by the following technical scheme.
A lithium battery type multifunctional emergency power supply comprises a central control module which is respectively connected with a start display module, an electric quantity and information display module, a wireless charging module, a spotlight module, a working lamp and warning lamp module, a bidirectional USB module, a shutdown zero-power control circuit, a wireless charging/forcing/start switch control module, a serial lithium battery protection module, a temperature protection control module, a start output circuit, a safety circuit and a bulge detection module, the serial lithium battery protection module is connected with the lithium battery pack and the battery pack low-temperature heating protection module, the start output circuit is connected with a serial lithium battery protection module, the serial lithium battery protection module is connected with a shutdown zero-power control circuit, the spotlight module, the working lamp and warning lamp module, the bidirectional USB module and the safety circuit are connected in sequence.
The lithium battery pack comprises 3 polymer lithium ion core groups, and the lithium battery pack is used for protecting the charging and discharging of the battery according to the temperature characteristic and the use environment of the lithium battery pack, such as voltage, current and temperature.
The battery pack is subjected to low-temperature heating protection: when the battery pack is stringed, the iron-chromium-aluminum heating sheets packaged by the PET film are assembled together, and the central control module and the temperature protection control module perform layered heating on the battery pack according to the environmental temperature condition of the battery so as to control the temperature of the battery to be in the optimal working temperature condition.
The series lithium battery protection module: an IP3254 built-in high-precision voltage detection circuit, a built-in equalization circuit and a delay circuit are adopted, and the circuit is suitable for protecting 3 or 4 series lithium ion/polymer rechargeable batteries; the IP3254 supports charging overcurrent protection by switching SEL terminals for protecting 3 or 4 series batteries.
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 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 positive electrode BT + of a power supply, 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 a common end of the resistor R41 are 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 startup 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 connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected between the grid and the source of the MOS transistor Q4 in parallel; the emitter of the triode Q7 is grounded, and a resistor R44 is connected in series between the base and the emitter 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 central control module: an SC92F7446B enhanced ultra-high-speed 1T 8051 kernel industrial grade Flash microcontroller is adopted; the integrated circuit is provided with 16Kbytes Flash ROM, 1Kbytes SRAM, 128bytes EEPROM, at most 46 GPI/O, 16 IO external interruptible, 3 16-bit timers, 17 paths of 12-bit high-precision ADCs, 1 analog comparator, 8 paths of 12-bit PWM, IO drive hierarchical control, 1 16 x 16-bit hardware multiplier-divider, an internal +/-1% high-precision high-frequency 16/8/41.33MHz oscillator, a +/-4% precision low-frequency oscillator, a UART and other communication interfaces.
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 5050 ceramic substrate packaged LED serves as a main light source, and the OC5010 built-in 5A power MOS switch buck type high-precision high-brightness LED constant current driving controller is used for adjusting and controlling through the output of a PWM signal of the MCU to realize the switching of the high beam, low beam and SOS modes of the spotlight.
The working lamp and the warning lamp module are provided with a high lumen value LED as a main light source, and the strong light, weak light, SOS and red flash warning modes of the spotlight are switched by an OC5010 built-in 5A power MOS switch step-down high-precision high-brightness LED constant current driving controller through MCU output PWM signal regulation control.
The bidirectional USB module is composed of 2 USB sockets with plug identification, an SC8804 synchronous boost charging controller supporting high-voltage input and reverse OTG buck output.
The temperature protection control module finishes temperature detection of the battery pack through RT2, RT3 and P7, when heating is needed, P7 controls output heating signals Q8, Q6 and Q9 to turn on H1 to heat the battery pack, heating is automatically stopped when the battery pack is heated to 5 degrees, when a product is used in a low-temperature environment, RT2 and RT3 temperature sensors which are pasted on the battery pack send heating signals JR-SW to output a high level to enable Q8 and Q9 to be conducted through RH1, R46 and R47 when the real-time temperature change of the battery pack is lower than 0 degree P7 processing temperature information, Q8 conducts B + voltage to drive Q6 to conduct H1 through R30 and R43 to be electrically started to heat, in the heating process, the RT2 and RT2 temperature sensors send heating stopping signals JR-SW output a low level to shut off a heating control circuit when the real-time temperature change of the battery pack is higher than 5 degrees P2 processing temperature to stop heating the heating control circuit heating, RT2 detects the temperature of the battery pack, if the environment temperature is higher than 5 degrees, the heating signals that the battery pack is prohibited to be heated by MCU, in the use process, the temperature of the RT2 and RT3 temperature sensors is higher than 45 and 60 degrees along with the real-time change of the temperature of the battery pack, and the MCU processes the temperature information and sends signals of stopping charging, stopping working and the like to realize the temperature protection of the battery.
The mechanical fuse with the overcurrent and overtemperature protection characteristics of the fuse circuit is used as the final-stage protection, and the fuse circuit is disconnected to completely cut off the power supply of the battery to a product line under the condition that the current or temperature abnormality series lithium battery protection module and the temperature protection control module cannot effectively protect.
The ballooning detection module: the battery pack detection device comprises copper foil paper applied to the surface of a battery pack and a bulging detection plate installed at the top of a battery bin, wherein when the battery bulges beyond the limit of the battery bin, the bulging detection plate is connected to send a signal to an MCU (microprogrammed control unit) to process, then a product is controlled to stop working, and alarm information is displayed.
The starting output module comprises positive and negative alligator clips, a connecting cable, an EC5 connector, a control circuit board and a handle box.
Compared with the prior art, the invention has the advantages that: the USB charging device is provided with charging overcurrent protection, can display information such as electric quantity and the like, is provided with a spotlight and a warning lamp, and can meet the charging requirement of a USB, and is provided with a safety circuit and bulge detection.
The invention provides an emergency starting power supply with a comprehensive 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.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Fig. 2 is a schematic circuit diagram of a series lithium battery protection module.
Fig. 3 is a power-off zero-power control circuit.
Fig. 4 is a circuit schematic diagram of a wireless charging/forcing/starting switch control module.
Fig. 5 is a schematic circuit diagram of the central control module.
Fig. 6 is a schematic circuit diagram of the power and information display module.
FIG. 7 is a schematic circuit diagram of the start-up display module.
Fig. 8 is a schematic circuit diagram of the temperature protection control module.
Fig. 9 is a schematic circuit diagram of the bulge detection module.
Fig. 10 is a spotlight module circuit schematic.
Fig. 11 is a schematic circuit diagram of the working lamp and warning lamp module.
Fig. 12 is a first assembly view of the present invention.
Fig. 13 is a second assembly view of the present invention.
Fig. 14 is an assembly view of the actuating handle of the present invention.
In the figure: 37. a positive electrode handle clip line 36, a negative electrode handle clip line 35, a starting handle protective coil 34, a starting handle lower cover 33, a starting handle control board 32, a male shell female end 31, a starting handle upper cover 29, a switch lamp control key 28, a USB (universal serial bus) cover 27, a decorative cover 26, a forced starting key 25, a front shell 24, a side light transmitting cover 23, a side light emitting plate reflection cover 22, a side light emitting plate 21, a side light emitting plate pressing plate 20, a control mainboard assembly 19, a lifting handle 18, a port cover 17, a terminal fixing lower cover 16, a female shell terminal assembly 15, a fixing upper cover 14, a wireless charging and transmitting coil assembly 13, a wireless charging and back cover 12, a rear shell 11, a battery drum expansion detection plate 10, a battery heating sheet 9, a battery fixing double-sided adhesive tape 8, a battery pack 7, a battery pack 6, a lamp holder light emitting plate 5, a lamp holder reflection cover 4, Strong magnetism 2, lamp holder printing opacity cover 1, lamp holder lid 41, switch warning button 42, side rubber lid 43, side board 45, control mainboard 46, female public end 47 of shell, preceding worn-out fur 48, battery package upper cover 49, drive plate 50, lithium cell 53, battery package lower cover 54, protecgulum 55, loudspeaker 56, bluetooth control mainboard 57, loudspeaker screen panel 58, bluetooth button 62, reflector panel radiator 63, opal printing opacity cover 65, LED lamp control board 66, electric quantity display leaded light post 67, LED control button 68, the outer shell of silica gel.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples.
As shown in fig. 1, a lithium battery type multifunctional emergency power supply comprises a central control module, wherein the central control module is respectively connected with a start display module, an electric quantity and information display module, a wireless charging module, a spotlight module, a working lamp and warning lamp module, a bidirectional USB module, a shutdown zero power consumption control circuit, a wireless charging/forcing/start switch control module, a serial lithium battery protection module, a temperature protection control module, a start output circuit, an insurance circuit and a swelling detection module, the serial lithium battery protection module is connected with a lithium battery pack and a battery pack low-temperature heating protection module, the start output circuit is connected with the serial lithium battery protection module, the serial lithium battery protection module is connected with the shutdown zero power consumption control module, the spotlight module, the working lamp and the warning lamp module, The bidirectional USB module and the safety circuit are connected in sequence.
The lithium battery pack comprises 3 polymer lithium ion core groups, and multiple protections such as voltage, current and temperature are set according to the temperature characteristic and the use environment of the lithium battery pack to protect the charging and discharging of the battery.
The battery pack is subjected to low-temperature heating protection: when the battery pack is stringed, the iron-chromium-aluminum heating sheets packaged by the PET film are assembled together, and the central control module and the temperature protection control module perform layered heating on the battery pack according to the environmental temperature condition of the battery so as to control the temperature of the battery to be in the optimal working temperature condition.
As shown in fig. 2, the series lithium battery protection module: an IP3254 built-in high-precision voltage detection circuit, a built-in equalization circuit and a delay circuit are adopted, and the circuit is suitable for protecting 3 or 4 series lithium ion/polymer rechargeable batteries; the IP3254 supports charging overcurrent protection by switching SEL terminals for protecting 3 or 4 series batteries.
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 on-off circuit is designed to solve the technical problems.
As shown in fig. 3, 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 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 positive electrode BT + of a power supply, 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 a common end of the resistor R41 are 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 startup 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 connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected between the grid and the source of the MOS transistor Q4 in parallel; the emitter of the triode Q7 is grounded, and a resistor R44 is connected in series between the base and the emitter 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.
As shown in fig. 4, the touch button switch is designed, and the on-off switch controls various functions of the product.
As shown in fig. 5, the central control module: an SC92F7446B enhanced ultra-high-speed 1T 8051 kernel industrial grade Flash microcontroller is adopted; the integrated circuit is integrated with resources such as 16Kbytes Flash ROM, 1Kbytes SRAM, 128bytes EEPROM, at most 46 GPI/O, 16 IO with external interrupt, 3 16-bit timers, 17 paths of 12-bit high-precision ADCs, 1 analog comparator, 8 paths of 12-bit PWM, IO drive hierarchical control, 1 16 x 16-bit hardware multiplier-divider, an internal +/-1% high-precision high-frequency 16/8/41.33MHz oscillator, a +/-4% precision low-frequency oscillator, UART and other communication interfaces. The controller is designed to be linked with each module to control the work and state detection of each functional module.
As shown in fig. 6, 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:
Figure BDA0002974007140000061
Figure BDA0002974007140000071
as shown in fig. 10, the 5050 ceramic substrate packaged LED is used as a main light source, and the OC5010 built-in 5A power MOS switch buck high-precision high-brightness LED constant current driving controller is used for adjusting and controlling the output PWM signal of the MCU to realize the switching of the spotlight high beam, low beam and SOS 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 1 MHz. Has the advantages of stable output brightness, no stroboflash and the like.
As shown in fig. 11, 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-type high-precision high-brightness LED constant current drive controller, so as to realize the switching of the spotlight strong light, weak light, SOS and red flash warning modes.
The bidirectional USB module is composed of 2 USB sockets with plug identification, an SC8804 synchronous boost charging controller supporting high-voltage input and reverse OTG buck output.
As shown in fig. 8, the temperature protection control module completes temperature detection of the battery pack through RT2, RT3, and P7, when heating is needed, the P7 controls output of heating signals Q8, Q6, and Q9 to turn on H1 to heat the battery pack, and automatically stops heating when the temperature reaches 5 degrees, when the product is used in a low temperature environment, the RT2 and RT3 temperature sensors attached to the battery pack output a heating signal JR-SW with a real-time temperature change of the battery pack lower than 0 degree, the P7 processing temperature information sends a high level through RH1, R46, and R47 to turn on Q8 and Q9, Q8 conducts B + voltage, drives Q6 through R43 to drive Q6 to conduct H1 to be powered on to start heating, the RT2 and RT3 temperature sensors send a stop heating signal JR-SW output a low level to turn off the heating control circuit to stop heating when the real-time temperature change of the battery pack is higher than 5 degrees, the RT1 temperature detection of the battery pack, if the ambient temperature of the battery pack is higher than 15 ℃, the MCU mistakenly sends a heating signal to be conducted by the Q10 to prohibit heating, and the MCU processing temperature information of the RT2 and RT3 temperature sensors with the real-time change of the temperature of the battery pack is higher than 45 ℃ and 60 ℃ sends signals of stopping charging, stopping working and the like to realize the temperature protection of the battery in the use process.
The mechanical fuse with the overcurrent and overtemperature protection characteristics of the fuse circuit is used as the final-stage protection, and the fuse circuit is disconnected to completely cut off the power supply of the battery to a product line under the condition that the current or temperature abnormality series lithium battery protection module and the temperature protection control module cannot effectively protect.
As shown in fig. 9, the ballooning detection module: the battery pack detection device comprises copper foil paper applied to the surface of a battery pack and a bulging detection plate installed at the top of a battery bin, wherein when the battery bulges beyond the limit of the battery bin, the bulging detection plate is connected to send a signal to an MCU (microprogrammed control unit) to process, then a product is controlled to stop working, and alarm information is displayed.
The starting output module comprises positive and negative alligator clips, a connecting cable, an EC5 connector, a control circuit board and a handle box. As shown in fig. 12-14, the assembly includes the following components: a positive electrode handle clip line 37, a negative electrode handle clip line 36, a start handle protective coil 35, a start handle lower cover 34, a start handle control board 33, a male housing female end 32, a start handle upper cover 31, a switch lamp control key 29, a USB port cover 28, a decorative cover 27, a forced start key 26, a front housing 25, a side light transmitting cover 24, a side light emitting plate reflection cover 23, a side light emitting plate 22, a side light emitting plate pressing plate 21, a control mainboard assembly 20, a handle 19, a port cover 18, a terminal fixing lower cover 17, a female housing terminal assembly 16, a fixing upper cover 15, a wireless charging and transmitting coil assembly 14, a wireless charging and back cover 13, a rear housing 12, a battery swelling detection plate 11, a battery heating sheet 10, a battery fixing double-sided adhesive tape 9, a battery pack 8, a battery housing 7, a lamp holder light emitting plate 6, a lamp holder reflection cover 5, a lamp holder 4, a strong magnet 3, a lamp holder light transmitting cover 2, a lamp holder cover 1, Side rubber lid 42, side board 43, control mainboard 45, female public end 46 of shell, preceding worn-out fur 47, battery package upper cover 48, drive plate 49, lithium cell 50, battery package lower cover 53, protecgulum 54, loudspeaker 55, bluetooth control mainboard 56, loudspeaker screen panel 57, bluetooth button 58, reflector panel radiator 62, opal printing opacity cover 63, LED lamp control board 65, electric quantity display leaded light post 66, LED control button 67, the outer shell 68 of silica gel.

Claims (12)

1. The utility model provides a lithium cell formula multifunctional emergency power supply, its characterized in that includes central control module, central control module respectively with start display module, electric quantity and information display module, wireless module, spotlight module, working light and warning light module, two-way USB module, shutdown zero power consumption control circuit, wireless fill/force/start switch control module, serial-type lithium cell protection module, temperature protection control module, start output circuit, insurance circuit and swell detection module and be connected, serial-type lithium cell protection module is connected with lithium cell package and battery package low temperature heating protection module, start output circuit is connected with serial-type lithium cell protection module, serial-type lithium cell protection module is connected with shutdown zero power consumption control circuit, spotlight module, working light and warning light module, the module, The bidirectional USB module and the safety circuit are connected in sequence.
2. The lithium-ion battery type multifunctional emergency power supply of claim 1, wherein the lithium battery pack comprises 3 polymer lithium ion battery pack strings, and the lithium battery pack sets voltage, current and temperature to protect charging and discharging of the battery according to temperature characteristics and use environment of the lithium battery pack.
3. A lithium-ion battery-type multifunctional emergency power supply according to claim 1, characterized in that the battery pack is protected by low-temperature heating: when the battery pack is stringed, the iron-chromium-aluminum heating sheets packaged by the PET film are assembled together, and the central control module and the temperature protection control module perform layered heating on the lithium battery pack according to the environmental temperature condition of the battery, so that the temperature of the battery is controlled to be the optimal working temperature condition.
4. A lithium-ion battery type multifunctional emergency power supply according to claim 1, characterized in that the series lithium battery protection module: an IP3254 built-in high-precision voltage detection circuit, a built-in equalization circuit and a delay circuit are adopted, and the circuit is suitable for protecting 3 or 4 series lithium ion/polymer rechargeable batteries; the IP3254 supports charging overcurrent protection by switching SEL terminals for protecting 3 or 4 series batteries.
5. The lithium-ion battery type multifunctional emergency power supply according to claim 1, 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 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 positive electrode BT + of a power supply, 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 a common end of the resistor R41 are 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 startup 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 connected between the input end of the main control module and the ground in parallel; a resistor R36 and a capacitor C16 are connected between the grid and the source of the MOS transistor Q4 in parallel; the emitter of the triode Q7 is grounded, and a resistor R44 is connected in series between the base and the emitter 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.
6. The lithium-ion battery type multifunctional emergency power supply of claim 1, 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 lithium-ion battery type multifunctional emergency power supply of claim 1, 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-type high-precision and high-brightness LED constant current driving controller through the adjustment and control of the output PWM signal of the MCU.
8. The lithium-ion battery-type multifunctional emergency power supply of claim 1, wherein the working lamp and the warning lamp module use a high lumen value LED as a main light source, and the switching of the spotlight strong light, weak light, SOS and red flash warning modes is realized by an OC5010 built-in 5A power MOS switch buck type high-precision and high-brightness LED constant current driving controller through the adjustment and control of a PWM signal output by the MCU.
9. The lithium-ion battery type multifunctional emergency power supply of claim 1, wherein the temperature protection control module completes temperature detection of the battery pack through RT2, RT3, and P7, when heating is required, the P7 controls output heating signals Q8, Q6, and Q9 to turn on H1 to heat the battery pack, and automatically stops heating when the temperature reaches 5 degrees, when the product is used in a low-temperature environment, the RT2 and RT3 temperature sensors attached to the battery pack send heating signals JR-SW to output a high level to turn on Q8 and Q9 through RH 46 and R47 along with the real-time temperature change of the battery pack when the temperature is lower than 0 degree, Q8 conducts B + voltage through R30 and R43 to drive Q9 to conduct H1 to be powered on to start heating, the RT2 and RT3 temperature sensors send heating stop signals JR-SW-heating control circuit to stop heating when the real-time temperature change along with the temperature of the battery pack is higher than 5 degrees, RT1 detects battery package ambient temperature, if battery package ambient temperature is greater than 15 ℃ MCU sends heating signal by mistake and will be conducted by Q10 and forbid the heating, and RT2, RT3 temperature sensor is higher than 45 along with battery package temperature real-time variation temperature, 60 degrees MCU processing temperature information sends signals such as stop charging, stop work and realize the temperature protection to the battery in the use.
10. The lithium-ion battery type multifunctional emergency power supply of claim 1, wherein the safety circuit has a mechanical safety with overcurrent and overtemperature protection characteristics as a final protection, and the safety circuit is disconnected to completely cut off the power supply of the battery to the product line under the condition that the serial lithium battery protection module and the temperature protection control module cannot effectively protect the serial lithium battery protection module and the temperature protection control module in the event of current or temperature abnormality.
11. The lithium-ion battery type multifunctional emergency power supply of claim 1, wherein the swelling detection module: the battery pack detection device comprises copper foil paper applied to the surface of a battery pack and a bulging detection plate installed at the top of a battery bin, wherein when the battery bulges beyond the limit of the battery bin, the bulging detection plate is connected to send a signal to a central control module to process, then a product is controlled to stop working, and alarm information is displayed.
12. The lithium-ion battery type multifunctional emergency power supply of claim 1, wherein the start output module comprises positive and negative alligator clips, a connecting cable, an EC5 connector, a control circuit board and a handle box.
CN202110270176.9A 2021-03-12 2021-03-12 Lithium battery type multifunctional emergency power supply Pending CN113036856A (en)

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Publication number Priority date Publication date Assignee Title
CN113933716A (en) * 2021-09-29 2022-01-14 深圳市昂佳科技有限公司 Ultra-low standby power consumption nanoamp wide voltage range LED battery power indicating system
CN118539547A (en) * 2024-04-30 2024-08-23 东莞市辉豪电器制品有限公司 Emergency power supply control circuit

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CN208862604U (en) * 2018-10-16 2019-05-14 深圳市电将军科技有限公司 Portable multifunctional emergency accumulation power supply
CN211088457U (en) * 2019-08-02 2020-07-24 宁波瑞华电子塑料有限公司 Self-checking two switch lithium cell emergency power source low temperature heating circuit
CN211321309U (en) * 2019-08-02 2020-08-21 宁波瑞华电子塑料有限公司 One-key self-locking startup and shutdown circuit

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
CN205951868U (en) * 2016-07-22 2017-02-15 深圳市盛景源科技有限公司 Emergent start power of car of intelligent recognition and protection
CN107565626A (en) * 2017-08-28 2018-01-09 楼森燎 Eps
CN208862604U (en) * 2018-10-16 2019-05-14 深圳市电将军科技有限公司 Portable multifunctional emergency accumulation power supply
CN211088457U (en) * 2019-08-02 2020-07-24 宁波瑞华电子塑料有限公司 Self-checking two switch lithium cell emergency power source low temperature heating circuit
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113933716A (en) * 2021-09-29 2022-01-14 深圳市昂佳科技有限公司 Ultra-low standby power consumption nanoamp wide voltage range LED battery power indicating system
CN118539547A (en) * 2024-04-30 2024-08-23 东莞市辉豪电器制品有限公司 Emergency power supply control circuit

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Application publication date: 20210625