Battery car intelligent charging device with smoke alarm

Abstract

The invention discloses a battery car intelligent charging device with a smoke alarm, and relates to the technical field of battery car charging, and the battery car intelligent charging device comprises a power supply processing module which is used for multipath voltage stabilization power supply; the first energy storage module is used for storing energy; the second energy storage module is used for storing energy and controlling connection with the first energy storage module; the third energy storage module is used for storing energy and controlling connection with the first energy storage module or the second energy storage module; the energy storage detection module is used for voltage detection and overvoltage judgment, and controlling the charging state and the connection state of the first energy storage module, the second energy storage module or the third energy storage module during overvoltage; the protection control module is used for detecting smoke, performing power-off protection and controlling the first energy storage module, the second energy storage module and the third energy storage module to be disconnected when smoke is detected; and the intelligent control module is used for signal receiving and module control. According to the battery car intelligent charging device with the smoke alarm, the charging efficiency and the charging safety of the battery car can be improved through the power supply processing module.

Description

Technical Field

[0001] The invention relates to the technical field of battery vehicle charging, in particular to an intelligent battery vehicle charging device with a smoke alarm. Background Art

[0002] In recent years, electric bicycles have gradually become an important means of transportation for citizens due to their advantages of economy and convenience. Electric bicycles are pure electric vehicles that are powered by batteries and driven by electric motors (DC, AC, series-excited, externally-excited). In order to complete the charging of electric bicycles, electric bicycles in the prior art generally use a charging device composed of a switching power supply to achieve overall charging control of the battery of the electric bicycle. When the battery is composed of multiple battery packs connected in series, the charging voltage of each battery pack will be unequal, resulting in the inability to balance the charging of the battery packs, reducing the stability of the battery, and easily causing battery damage or spontaneous combustion. In addition, when performing charging control, it is impossible to promptly eliminate the faulty part and perform charging protection when charging is abnormal, so there is room for improvement. Summary of the invention

[0003] The embodiment of the present invention provides an intelligent charging device for a battery vehicle with a smoke alarm to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, there is provided an intelligent charging device for a battery vehicle with a smoke alarm, comprising: a power processing module, a first energy storage module, a second energy storage module, a third energy storage module, an energy storage detection module, an intelligent control module and a protection control module; A power processing module, connected to the intelligent control module, for receiving AC power, rectifying the AC power and outputting the first power, and upon receiving the first pulse signal output by the intelligent control module, isolating the first power, rectifying and filtering the first power, and regulating the voltage, and outputting the first power, the second power, and the third power respectively; A first energy storage module, connected to the power processing module, the energy storage detection module and the protection control module, for receiving and storing the first electric energy, and stopping receiving the first electric energy when receiving the first control signal output by the energy storage detection module or the first protection signal output by the protection control module; a second energy storage module, connected to the power processing module, the energy storage detection module, the first energy storage module and the protection control module, for receiving and storing the second electric energy, stopping receiving the second electric energy upon receiving the second control signal output by the energy storage detection module or the first protection signal output by the protection control module, being connected in series with the first energy storage module and being disconnected from the first energy storage module upon receiving the first protection signal or the first control signal; a third energy storage module, connected to the first energy storage module, the second energy storage module, the power processing module, the energy storage detection module and the protection control module, and used to receive and store the third electric energy, and stop receiving the third electric energy when receiving the third control signal output by the energy storage detection module or the first protection signal output by the protection control module, and be connected in series with the second energy storage module and disconnected from the second energy storage module when receiving the third control signal or the first protection signal, and be connected in series with the first energy storage module when receiving the second control signal, and be disconnected from the first energy storage module when receiving the first protection signal; An energy storage detection module, used to perform voltage detection on the electric energy stored in the first energy storage module, the electric energy stored in the second energy storage module, and the electric energy stored in the third energy storage module, respectively, and output a first control signal when the voltage stored in the first energy storage module is greater than a set overvoltage threshold, output a second control signal when the voltage stored in the second energy storage module is greater than the set overvoltage threshold, and output a third control signal when the voltage stored in the third energy storage module is greater than the set overvoltage threshold; A protection control module, connected to the power processing module, for performing voltage stabilization and filtering processing on the first electric energy and performing smoke detection on the first energy storage module, the second energy storage module and the third energy storage module and outputting a first protection signal when smoke is detected; The intelligent control module is connected to the energy storage detection module and the protection control module, and is used to output a first pulse signal, receive a first control signal, a second control signal and a third control signal and adjust the duty cycle of the first pulse signal according to the number of received control signals, and stop outputting the first pulse signal when receiving a first protection signal or receiving the first control signal, the second control signal and the third control signal at the same time.

[0005] As a further solution of the present invention: the power processing module includes a power interface, a first rectifier, a first inductor, a first diode, a first transformer, a first power tube, a second diode, a second inductor, a first capacitor, a third diode, a third inductor, a second capacitor, a fourth diode, a fourth inductor and a third capacitor; the intelligent control module includes a first controller; Preferably, the first end and the second end of the power interface are respectively connected to the first end and the second end of the first rectifier, the third end of the first rectifier is connected to the first end of the primary side of the first transformer and is connected to the cathode of the first diode through the first inductor, the second end of the primary side of the first transformer is connected to the drain of the first power tube, the source of the first power tube, the anode of the first diode and the fourth end of the first rectifier are all grounded, the gate of the first power tube is connected to the IO1 end of the first controller, the first end of the first secondary side of the first transformer is connected to the anode of the second diode, the cathode of the second diode is connected to the first end of the first capacitor through the second inductor, the second end of the first capacitor is connected to the second end of the first secondary side of the first transformer, the first end of the second secondary side of the first transformer is connected to the anode of the third diode, the cathode of the third diode is connected to the first end of the second capacitor through the third inductor, the second end of the second capacitor is connected to the second end of the second secondary side of the first transformer, the first end of the third secondary side of the first transformer is connected to the anode of the fourth diode, the cathode of the fourth diode is connected to the first end of the third capacitor through the fourth inductor, and the second end of the third capacitor is connected to the second end of the third secondary side of the first transformer.

[0006] As a further solution of the present invention: the first energy storage module includes a first resistor, a second power tube, a first switch tube, a fourth resistor and a first energy storage module; Preferably, the gate of the second power tube is connected to the collector of the first switching tube and is connected to the drain of the second power tube and the first end of the first capacitor through the first resistor, the source of the second power tube is connected to the first end of the first energy storage module, the second end of the first energy storage module is connected to the second end of the first capacitor, the emitter of the first switching tube is grounded, the base of the first switching tube is connected to the first end of the fourth resistor, and the second end of the fourth resistor is connected to the energy storage detection module and the protection control module.

[0007] As a further solution of the present invention: the second energy storage module includes a second resistor, a third power tube, a second switch tube, a fifth resistor, a fifth power tube, a seventh resistor and a second energy storage module; Preferably, the gate of the third power tube is connected to the collector of the second switching tube and is connected to the drain of the third power tube and the first end of the second capacitor through the second resistor, the source of the third power tube is connected to the first end of the second energy storage module and the drain of the fifth power tube, the source of the fifth power tube is connected to the second end of the first energy storage module, the gate of the fifth power tube is grounded through the seventh resistor, the emitter of the second switching tube is grounded, the base of the second switching tube is connected to the first end of the fifth resistor, the second end of the fifth resistor is connected to the energy storage detection module, and the second end of the second energy storage module is connected to the second end of the second capacitor.

[0008] As a further solution of the present invention: the third energy storage module includes a third resistor, a fourth power tube, a third switch tube, a sixth resistor, a sixth power tube, an eighth resistor, a seventh power tube, a fourth switch tube and a third energy storage module; Preferably, the gate of the fourth power tube is connected to the collector of the third switch tube and is connected to the first end of the third capacitor through the third resistor, the base of the third switch tube is connected to the first end of the sixth resistor, the emitter of the third switch tube is grounded, the second end of the sixth resistor is connected to the gate of the sixth power tube and is grounded through the eighth resistor, the first end of the third energy storage module is connected to the source of the fourth power tube, the source of the seventh power tube and the drain of the sixth power tube, the second end of the third energy storage module is connected to the second end of the third capacitor, the source of the sixth power tube is connected to the second end of the second energy storage module, the drain of the seventh power tube is connected to the second end of the first energy storage module, the gate of the seventh power tube is connected to the energy storage detection module, the IO3 end of the first controller and the collector of the fourth switch tube, the emitter of the fourth switch tube is grounded, and the base of the fourth switch tube is connected to the protection control module.

[0009] As a further solution of the present invention: the energy storage detection module includes a ninth resistor, a tenth resistor, a first comparator, an overvoltage threshold device, a first detection device, and a second detection device; Preferably, the in-phase end of the first comparator is connected to one end of the tenth resistor and is connected to the first end of the first energy storage module through the ninth resistor, the other end of the tenth resistor is connected to the second end of the first energy storage module, the inverting end of the first comparator is connected to the overvoltage threshold device, the output end of the first comparator is connected to the gate of the fifth power tube, the second end of the fourth resistor and the IO2 end of the first controller, the first end and the second end of the first detection device are respectively connected to the first end and the second end of the second energy storage module, the third end of the first detection device is connected to the gate of the seventh power tube, the collector of the fourth switch tube and the second end of the fifth resistor, the first end and the second end of the second detection device are respectively connected to the first end and the second end of the third energy storage module, and the third end of the second detection device is connected to the second end of the sixth resistor, the gate of the sixth power tube and the IO4 end of the first controller.

[0010] As a further solution of the present invention: the protection control module includes an eleventh resistor, a fifth diode, a smoke detection device, a sixth diode, a seventh diode and an eighth diode; Preferably, the power supply end of the smoke detection device is connected to the cathode of the fifth diode and connected to the first end of the first rectifier through the eleventh resistor, the anode of the fifth diode is connected to the ground terminal of the smoke detection device, the fourth end of the first rectifier and the ground terminal, the output end of the smoke detection device is connected to the IO5 terminal of the first controller, the anode of the sixth diode, the anode of the seventh diode and the anode of the eighth diode, and the cathode of the sixth diode, the cathode of the seventh diode and the cathode of the eighth diode are respectively connected to the gate of the fifth power tube, the base of the fourth switching tube and the gate of the sixth power tube.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the intelligent charging device for electric battery vehicles with smoke alarm of the present invention performs multi-channel voltage stabilization processing by the power processing module so as to control the charging of the energy storage modules of the first energy storage module, the second energy storage module and the third energy storage module; the energy storage detection module performs overvoltage detection on the first energy storage module, the second energy storage module and the third energy storage module; and when any one or several modules of the first energy storage module, the second energy storage module or the third energy storage module are overvoltage, the abnormal energy storage module will be disconnected, and the electric energy output by the power processing module will be adjusted to control the charging of the normal energy storage module, so as to avoid the abnormal energy storage module affecting the charging work of the normal energy storage module and improve the charging efficiency; at the same time, the protection control module performs smoke detection, and after detecting smoke, the power supply of the power processing module will be directly disconnected, and the connection of the first energy storage module, the second energy storage module or the third energy storage module will be disconnected, so as to improve the charging safety of the electric battery vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0013] Figure 1 A schematic block diagram of a battery vehicle intelligent charging device with a smoke alarm provided in an embodiment of the present invention.

[0014] Figure 2 A circuit diagram of an electric battery vehicle intelligent charging device with a smoke alarm provided in an embodiment of the present invention.

[0015] Figure 3 A circuit diagram of an energy storage detection module provided in an embodiment of the present invention.

[0016] Figure 4 A circuit diagram of a protection control module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In one embodiment, see Figure 1, a battery vehicle intelligent charging device with smoke alarm, comprising: a power processing module 1, a first energy storage module 2, a second energy storage module 3, a third energy storage module 4, an energy storage detection module 5, an intelligent control module 6 and a protection control module 7; Specifically, the power processing module 1 is connected to the intelligent control module 6, and is used to receive the AC power, rectify the AC power and output the first power, and when receiving the first pulse signal output by the intelligent control module 6, isolate the first power, perform multi-channel rectification and filtering, and regulate the voltage, and output the first power, the second power and the third power respectively; A first energy storage module 2 is connected to the power processing module 1, the energy storage detection module 5 and the protection control module 7, and is used to receive and store the first electric energy, and stop receiving the first electric energy when receiving the first control signal output by the energy storage detection module 5 or the first protection signal output by the protection control module 7; The second energy storage module 3 is connected to the power processing module 1, the energy storage detection module 5, the first energy storage module 2 and the protection control module 7, and is used to receive and store the second electric energy. When receiving the second control signal output by the energy storage detection module 5 or the first protection signal output by the protection control module 7, the second energy storage module 3 stops receiving the second electric energy, is connected in series with the first energy storage module 2, and is disconnected from the first energy storage module 2 when receiving the first protection signal or the first control signal; The third energy storage module 4 is connected to the first energy storage module 2, the second energy storage module 3, the power processing module 1, the energy storage detection module 5 and the protection control module 7, and is used to receive and store the third electric energy. When receiving the third control signal output by the energy storage detection module 5 or the first protection signal output by the protection control module 7, the third energy storage module 4 stops receiving the third electric energy, is connected in series with the second energy storage module 3, and is disconnected from the second energy storage module 3 when receiving the third control signal or the first protection signal, is connected in series with the first energy storage module 2 when receiving the second control signal, and is disconnected from the first energy storage module 2 when receiving the first protection signal; The energy storage detection module 5 is used to perform voltage detection on the electric energy stored in the first energy storage module 2, the electric energy stored in the second energy storage module 3, and the electric energy stored in the third energy storage module 4, respectively, and output a first control signal when the voltage stored in the first energy storage module 2 is greater than a set overvoltage threshold, output a second control signal when the voltage stored in the second energy storage module 3 is greater than a set overvoltage threshold, and output a third control signal when the voltage stored in the third energy storage module 4 is greater than a set overvoltage threshold; A protection control module 7, connected to the power processing module 1, for performing voltage stabilization and filtering processing on the first electric energy and performing smoke detection on the first energy storage module 2, the second energy storage module 3 and the third energy storage module 4 and outputting a first protection signal when smoke is detected; The intelligent control module 6 is connected to the energy storage detection module 5 and the protection control module 7, and is used to output a first pulse signal, receive a first control signal, a second control signal and a third control signal and adjust the duty cycle of the first pulse signal according to the number of received control signals, and stop outputting the first pulse signal when receiving a first protection signal or receiving the first control signal, the second control signal and the third control signal at the same time.

[0019] In a specific embodiment, the power processing module 1 may adopt a power processing circuit composed of a power interface, a rectifier, a transformer, a field effect transistor, a transformer, etc. to rectify the input electric energy and perform multi-channel high-frequency voltage regulation processing; the first energy storage module 2 may adopt a first energy storage circuit composed of a field effect transistor, a triode, an energy storage module, etc., which may control the charging of a group of energy storage modules in a battery of a battery vehicle composed of multiple groups of energy storage modules; the second energy storage module 3 may adopt a second energy storage circuit composed of a field effect transistor, a triode, an energy storage module, etc., which may control the charging of a group of energy storage modules in a battery of a battery vehicle composed of multiple groups of energy storage modules, and control the series charging state with the first energy storage module 2; the third energy storage module 4 may adopt a third energy storage circuit composed of a field effect transistor, a triode, an energy storage module, etc., which may control the charging of a group of energy storage modules in a battery of a battery vehicle composed of multiple groups of energy storage modules, and control the series charging state with the first energy storage module 2 or the second energy storage module 3; the energy storage detection module 5 may The energy storage detection circuit composed of a resistor, a comparator, a first detection device, a second detection device, etc. can be used to set an overvoltage threshold and determine whether overvoltage charging occurs based on the relationship between the overvoltage threshold and the voltage of the first energy storage module 2, the voltage of the second energy storage module 3, and the voltage of the third energy storage module 4. The above-mentioned intelligent control module 6 can adopt an intelligent control circuit composed of a single-chip microcomputer and a communicator, wherein the single-chip microcomputer integrates many components such as an arithmetic unit, a controller, a memory, and an input and output device to realize functions such as signal processing, data storage, module control, and timing control. The single-chip microcomputer cooperates with the communicator to communicate wirelessly with the monitoring terminal so as to wirelessly transmit the working information of the first energy storage module 2, the second energy storage module 3, and the third energy storage module 4 to the monitoring terminal; the above-mentioned protection control module 7 can adopt a protection control circuit composed of a smoke detection device, a resistor, and a diode, which can perform smoke detection and disconnect the connection between the energy storage modules after detecting smoke, and the intelligent control module 6 stops charging.

[0020] In another embodiment, see Figure 1 , Figure 2 , Figure 3 and Figure 4The power processing module 1 includes a power interface, a first rectifier T1, a first inductor L1, a first diode D1, a first transformer B1, a first power tube Q1, a second diode D2, a second inductor L2, a first capacitor C1, a third diode D3, a third inductor L3, a second capacitor C2, a fourth diode D4, a fourth inductor L4 and a third capacitor C3; the intelligent control module 6 includes a first controller U1; Specifically, the first end and the second end of the power interface are connected to the first end and the second end of the first rectifier T1 respectively, the third end of the first rectifier T1 is connected to the first end of the primary side of the first transformer B1 and is connected to the cathode of the first diode D1 through the first inductor L1, the second end of the primary side of the first transformer B1 is connected to the drain of the first power tube Q1, the source of the first power tube Q1, the anode of the first diode D1 and the fourth end of the first rectifier T1 are all grounded, the gate of the first power tube Q1 is connected to the IO1 end of the first controller U1, the first end of the first secondary side of the first transformer B1 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is connected to the cathode of the second diode D2 through the second inductor L 2 is connected to a first end of the first capacitor C1, a second end of the first capacitor C1 is connected to a second end of the first secondary side of the first transformer B1, a first end of the second secondary side of the first transformer B1 is connected to an anode of a third diode D3, a cathode of the third diode D3 is connected to a first end of the second capacitor C2 through a third inductor L3, a second end of the second capacitor C2 is connected to a second end of the second secondary side of the first transformer B1, a first end of the third secondary side of the first transformer B1 is connected to an anode of a fourth diode D4, a cathode of the fourth diode D4 is connected to a first end of the third capacitor C3 through a fourth inductor L4, and a second end of the third capacitor C3 is connected to a second end of the third secondary side of the first transformer B1.

[0021] In a specific embodiment, the first transformer B1 may use a high-frequency transformer with multiple output windings, i.e., a secondary winding, to achieve multi-channel high-frequency outputs; the first power tube Q1 may use an N-channel field effect tube with a body diode; the first controller U1 may be composed of an STM32 single-chip microcomputer and an RS485 communication device.

[0022] Further, the first energy storage module 2 includes a first resistor R1, a second power tube Q2, a first switch tube V1, a fourth resistor R4 and a first energy storage module; Specifically, the gate of the second power tube Q2 is connected to the collector of the first switch tube V1 and is connected to the drain of the second power tube Q2 and the first end of the first capacitor C1 through the first resistor R1, the source of the second power tube Q2 is connected to the first end of the first energy storage module, the second end of the first energy storage module is connected to the second end of the first capacitor C1, the emitter of the first switch tube V1 is grounded, the base of the first switch tube V1 is connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected to the energy storage detection module 5 and the protection control module 7.

[0023] In a specific embodiment, the second power tube Q2 can be an N-channel field effect tube with a body diode; the first switch tube V1 can be an NPN transistor; and the first energy storage module is one of the energy storage modules of the battery of the battery vehicle.

[0024] Further, the second energy storage module 3 includes a second resistor R2, a third power tube Q3, a second switch tube V2, a fifth resistor R5, a fifth power tube Q5, a seventh resistor R7 and a second energy storage module; Specifically, the gate of the third power tube Q3 is connected to the collector of the second switch tube V2 and is connected to the drain of the third power tube Q3 and the first end of the second capacitor C2 through the second resistor R2, the source of the third power tube Q3 is connected to the first end of the second energy storage module and the drain of the fifth power tube Q5, the source of the fifth power tube Q5 is connected to the second end of the first energy storage module, the gate of the fifth power tube Q5 is grounded through the seventh resistor R7, the emitter of the second switch tube V2 is grounded, the base of the second switch tube V2 is connected to the first end of the fifth resistor R5, the second end of the fifth resistor R5 is connected to the energy storage detection module 5, and the second end of the second energy storage module is connected to the second end of the second capacitor C2.

[0025] In a specific embodiment, the third power tube Q3 can be an N-channel field effect tube with a body diode, and the fifth power tube Q5 can be a P-channel field effect tube; the second energy storage module is one of the energy storage modules of the battery of the electric vehicle; the second switch tube V2 can be an N-channel field effect tube.

[0026] Further, the third energy storage module 4 includes a third resistor R3, a fourth power tube Q4, a third switch tube V3, a sixth resistor R6, a sixth power tube Q6, an eighth resistor R8, a seventh power tube Q7, a fourth switch tube V4 and a third energy storage module; Specifically, the gate of the fourth power tube Q4 is connected to the collector of the third switch tube V3 and is connected to the first end of the third capacitor C3 through the third resistor R3, the base of the third switch tube V3 is connected to the first end of the sixth resistor R6, the emitter of the third switch tube V3 is grounded, the second end of the sixth resistor R6 is connected to the gate of the sixth power tube Q6 and is grounded through the eighth resistor R8, the first end of the third energy storage module is connected to the source of the fourth power tube Q4, the source of the seventh power tube Q7 and the drain of the sixth power tube Q6, the second end of the third energy storage module is connected to the second end of the third capacitor C3, the source of the sixth power tube Q6 is connected to the second end of the second energy storage module, the drain of the seventh power tube Q7 is connected to the second end of the first energy storage module, the gate of the seventh power tube Q7 is connected to the energy storage detection module 5, the IO3 end of the first controller U1 and the collector of the fourth switch tube V4, the emitter of the fourth switch tube V4 is grounded, and the base of the fourth switch tube V4 is connected to the protection control module 7.

[0027] In a specific embodiment, the fourth power tube Q4 can be an N-channel field effect tube with a body diode, the sixth power tube Q6 can be a P-channel field effect tube, and the seventh power tube Q7 can be an N-channel field effect tube; the third energy storage module is one of the energy storage modules of the battery of the electric vehicle; the third switch tube V3 and the fourth switch tube V4 can both be NPN transistors.

[0028] Further, the energy storage detection module 5 includes a ninth resistor R9, a tenth resistor R10, a first comparator A1, an overvoltage threshold device, a first detection device, and a second detection device; Specifically, the in-phase end of the first comparator A1 is connected to one end of the tenth resistor R10 and is connected to the first end of the first energy storage module through the ninth resistor R9, the other end of the tenth resistor R10 is connected to the second end of the first energy storage module, the inverting end of the first comparator A1 is connected to the overvoltage threshold device, the output end of the first comparator A1 is connected to the gate of the fifth power tube Q5, the second end of the fourth resistor R4 and the IO2 end of the first controller U1, the first end and the second end of the first detection device are respectively connected to the first end and the second end of the second energy storage module, the third end of the first detection device is connected to the gate of the seventh power tube Q7, the collector of the fourth switch tube V4 and the second end of the fifth resistor R5, the first end and the second end of the second detection device are respectively connected to the first end and the second end of the third energy storage module, and the third end of the second detection device is connected to the second end of the sixth resistor R6, the gate of the sixth power tube Q6 and the IO4 end of the first controller U1.

[0029] In a specific embodiment, the ninth resistor R9 and the tenth resistor R10 perform voltage sampling; the first comparator A1 can select an LM358 comparator; the overvoltage threshold device can be composed of a reference voltage source and a resistor, and the overvoltage threshold is set to judge the voltage condition of the first energy storage module; the circuit composition structure of the first detection device and the circuit composition structure of the second detection device are the same as the circuit composition structure of the ninth resistor R9, the tenth resistor R10, the first comparator A1 and the overvoltage threshold device, and the voltage condition of the second energy storage module and the voltage condition of the third energy storage module are judged respectively.

[0030] Further, the protection control module 7 includes an eleventh resistor R11, a fifth diode D5, a smoke detection device, a sixth diode D6, a seventh diode D7 and an eighth diode D8; Specifically, the power supply end of the smoke detection device is connected to the cathode of the fifth diode D5 and is connected to the first end of the first rectifier T1 through the eleventh resistor R11, the anode of the fifth diode D5 is connected to the ground end of the smoke detection device, the fourth end of the first rectifier T1 and the ground end, the output end of the smoke detection device is connected to the IO5 end of the first controller U1, the anode of the sixth diode D6, the anode of the seventh diode D7 and the anode of the eighth diode D8, and the cathode of the sixth diode D6, the cathode of the seventh diode D7 and the cathode of the eighth diode D8 are respectively connected to the gate of the fifth power tube Q5, the base of the fourth switch tube V4 and the gate of the sixth power tube Q6.

[0031] In a specific embodiment, the smoke detection device may be composed of a smoke sensor and an operational amplifier to perform smoke detection and signal amplification processing.

[0032] In the battery vehicle intelligent charging device with smoke alarm of the present embodiment, the first rectifier T1 rectifies the AC power connected to the power interface, the IO1 end of the first controller U1 controls the conduction degree of the first power tube Q1 by outputting a first pulse signal, and cooperates with the first transformer B1 to perform high-frequency multi-channel voltage regulation on the power rectified by the first rectifier T1, the voltage-regulated power is transmitted to the first energy storage module through the second power tube Q2, transmitted to the second energy storage module through the third power tube Q3, and transmitted to the third energy storage module through the fourth power tube Q4, and the first energy storage module, the second energy storage module and the third energy storage module are connected in series through the fifth power tube Q5 and the sixth power tube Q6 The first energy storage module is connected in series, wherein the first capacitor C1, the second capacitor C2 and the third capacitor C3 are connected in series and power the first energy storage module, the second energy storage module and the third energy storage module connected in series. The ninth resistor R9 and the tenth resistor R10 perform voltage application on the first energy storage module. When the charging voltage exceeds the overvoltage threshold value set by the overvoltage threshold device, the first comparator A1 will output a high level to control the fifth power tube Q5 to be turned off, control the first switch tube V1 to be turned on, the second power tube Q2 to be turned off, the first energy storage module is disconnected, and then the charging work is stopped. At the same time, after the IO2 end of the first controller U1 receives the signal output by the first comparator A1, the duty cycle of the first pulse signal is adjusted to reduce the duty cycle of the first transformer B1. The voltage output by the second secondary side and the third secondary side maintains the charging operation of the second energy storage module and the third energy storage module. Similarly, when the charging voltage of the second energy storage module exceeds the overvoltage threshold, the first detection device outputs a high level to control the seventh power tube Q7 and the second switch tube V2 to be turned on, the third power tube Q3 to be turned off, the second energy storage module is disconnected, the first energy storage module and the third energy storage module are connected, and the IO3 end of the first controller U1 receives a high level, adjusts the first pulse signal, and reduces the charging voltage. Similarly, when the second detection device detects that the third energy storage module is over-voltage charged, it will control the third switch tube V3 and the seventh power tube Q7 to be turned on, the fourth power tube Q4 and the sixth power tube Q6 to be turned off, and the charging voltage is reduced. The first energy storage module and the second energy storage module perform energy storage work, and because the first controller U1 can be composed of a single-chip microcomputer and a communication device, after a fault occurs, the first controller U1 transmits data information to the communication device, and the communication device wirelessly transmits it to the monitoring terminal, so that the monitoring terminal can monitor the charging of the electric battery vehicle. In addition, the smoke detection device performs smoke detection. After detecting smoke, the fifth power tube Q5 and the sixth power tube Q6 are directly disconnected, and the fourth switch tube V4 is controlled to be turned on, and the seventh power tube Q7 is controlled to be turned off, thereby disconnecting the first energy storage module, the second energy storage module and the third energy storage module. At the same time, the first controller U1 stops controlling the first power tube Q1 to be turned on, and charging is stopped.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent charging device for battery vehicles with a smoke alarm, characterized in that: The battery vehicle intelligent charging device with smoke alarm includes: a power processing module, a first energy storage module, a second energy storage module, a third energy storage module, an energy storage detection module, an intelligent control module and a protection control module; The power processing module is connected to the intelligent control module, and is used to receive the AC power, rectify the AC power and output the first power, and when receiving the first pulse signal output by the intelligent control module, isolate the first power, perform multi-channel rectification and filtering, and regulate the voltage, and output the first power, the second power, and the third power respectively; The first energy storage module is connected to the power processing module, the energy storage detection module and the protection control module, and is used to receive and store the first electric energy, and stop receiving the first electric energy when receiving the first control signal output by the energy storage detection module or the first protection signal output by the protection control module; The second energy storage module is connected to the power processing module, the energy storage detection module, the first energy storage module and the protection control module, and is used to receive and store the second electric energy, and when receiving the second control signal output by the energy storage detection module or the first protection signal output by the protection control module, stops receiving the second electric energy, is connected in series with the first energy storage module, and is disconnected from the first energy storage module when receiving the first protection signal or the first control signal; The third energy storage module is connected to the first energy storage module, the second energy storage module, the power processing module, the energy storage detection module and the protection control module, and is used to receive and store the third electric energy. When receiving the third control signal output by the energy storage detection module or the first protection signal output by the protection control module, the third energy storage module stops receiving the third electric energy, is connected in series with the second energy storage module, and is disconnected from the second energy storage module when receiving the third control signal or the first protection signal. When receiving the second control signal, the third energy storage module is connected in series with the first energy storage module, and is disconnected from the first energy storage module when receiving the first protection signal. The energy storage detection module is used to perform voltage detection on the electric energy stored in the first energy storage module, the electric energy stored in the second energy storage module, and the electric energy stored in the third energy storage module, respectively, and output a first control signal when the voltage stored in the first energy storage module is greater than a set overvoltage threshold, output a second control signal when the voltage stored in the second energy storage module is greater than the set overvoltage threshold, and output a third control signal when the voltage stored in the third energy storage module is greater than the set overvoltage threshold; The protection control module is connected to the power processing module, and is used to perform voltage stabilization and filtering processing on the first electric energy and perform smoke detection on the first energy storage module, the second energy storage module and the third energy storage module, and output a first protection signal when smoke is detected; The intelligent control module is connected to the energy storage detection module and the protection control module, and is used to output a first pulse signal, receive a first control signal, a second control signal and a third control signal and adjust the duty cycle of the first pulse signal according to the number of received control signals, and stop outputting the first pulse signal when receiving a first protection signal or receiving the first control signal, the second control signal and the third control signal at the same time.

2. The battery vehicle intelligent charging device with smoke alarm according to claim 1 is characterized in that: The power processing module includes a power interface, a first rectifier, a first inductor, a first diode, a first transformer, a first power tube, a second diode, a second inductor, a first capacitor, a third diode, a third inductor, a second capacitor, a fourth diode, a fourth inductor and a third capacitor; the intelligent control module includes a first controller; The first end and the second end of the power interface are connected to the first end and the second end of the first rectifier respectively, the third end of the first rectifier is connected to the first end of the primary side of the first transformer and is connected to the cathode of the first diode through the first inductor, the second end of the primary side of the first transformer is connected to the drain of the first power tube, the source of the first power tube, the anode of the first diode and the fourth end of the first rectifier are all grounded, the gate of the first power tube is connected to the IO1 end of the first controller, the first end of the first secondary side of the first transformer is connected to the anode of the second diode, the cathode of the second diode is connected to the first end of the first capacitor through the second inductor, the second end of the first capacitor is connected to the second end of the first secondary side of the first transformer, the first end of the second secondary side of the first transformer is connected to the anode of the third diode, the cathode of the third diode is connected to the first end of the second capacitor through the third inductor, the second end of the second capacitor is connected to the second end of the second secondary side of the first transformer, the first end of the third secondary side of the first transformer is connected to the anode of the fourth diode, the cathode of the fourth diode is connected to the first end of the third capacitor through the fourth inductor, and the second end of the third capacitor is connected to the second end of the third secondary side of the first transformer.

3. The battery vehicle intelligent charging device with smoke alarm according to claim 2 is characterized in that: The first energy storage module includes a first resistor, a second power tube, a first switch tube, a fourth resistor and a first energy storage module; The gate of the second power tube is connected to the collector of the first switch tube and is connected to the drain of the second power tube and the first end of the first capacitor through the first resistor, the source of the second power tube is connected to the first end of the first energy storage module, the second end of the first energy storage module is connected to the second end of the first capacitor, the emitter of the first switch tube is grounded, the base of the first switch tube is connected to the first end of the fourth resistor, and the second end of the fourth resistor is connected to the energy storage detection module and the protection control module.

4. The battery vehicle intelligent charging device with smoke alarm according to claim 3 is characterized in that: The second energy storage module includes a second resistor, a third power tube, a second switch tube, a fifth resistor, a fifth power tube, a seventh resistor and a second energy storage module; The gate of the third power tube is connected to the collector of the second switch tube and is connected to the drain of the third power tube and the first end of the second capacitor through the second resistor, the source of the third power tube is connected to the first end of the second energy storage module and the drain of the fifth power tube, the source of the fifth power tube is connected to the second end of the first energy storage module, the gate of the fifth power tube is grounded through the seventh resistor, the emitter of the second switch tube is grounded, the base of the second switch tube is connected to the first end of the fifth resistor, the second end of the fifth resistor is connected to the energy storage detection module, and the second end of the second energy storage module is connected to the second end of the second capacitor.

5. The battery vehicle intelligent charging device with smoke alarm according to claim 4 is characterized in that: The third energy storage module includes a third resistor, a fourth power tube, a third switch tube, a sixth resistor, a sixth power tube, an eighth resistor, a seventh power tube, a fourth switch tube and a third energy storage module; The gate of the fourth power tube is connected to the collector of the third switch tube and is connected to the first end of the third capacitor through the third resistor, the base of the third switch tube is connected to the first end of the sixth resistor, the emitter of the third switch tube is grounded, the second end of the sixth resistor is connected to the gate of the sixth power tube and is grounded through the eighth resistor, the first end of the third energy storage module is connected to the source of the fourth power tube, the source of the seventh power tube and the drain of the sixth power tube, the second end of the third energy storage module is connected to the second end of the third capacitor, the source of the sixth power tube is connected to the second end of the second energy storage module, the drain of the seventh power tube is connected to the second end of the first energy storage module, the gate of the seventh power tube is connected to the energy storage detection module, the IO3 end of the first controller and the collector of the fourth switch tube, the emitter of the fourth switch tube is grounded, and the base of the fourth switch tube is connected to the protection control module.

6. The battery vehicle intelligent charging device with smoke alarm according to claim 5, characterized in that: The energy storage detection module includes a ninth resistor, a tenth resistor, a first comparator, an overvoltage threshold device, a first detection device, and a second detection device; The in-phase end of the first comparator is connected to one end of the tenth resistor and is connected to the first end of the first energy storage module through the ninth resistor. The other end of the tenth resistor is connected to the second end of the first energy storage module. The inverting end of the first comparator is connected to the overvoltage threshold device. The output end of the first comparator is connected to the gate of the fifth power tube, the second end of the fourth resistor and the IO2 end of the first controller. The first and second ends of the first detection device are respectively connected to the first and second ends of the second energy storage module. The third end of the first detection device is connected to the gate of the seventh power tube, the collector of the fourth switch tube and the second end of the fifth resistor. The first and second ends of the second detection device are respectively connected to the first and second ends of the third energy storage module. The third end of the second detection device is connected to the second end of the sixth resistor, the gate of the sixth power tube and the IO4 end of the first controller.

7. The battery vehicle intelligent charging device with smoke alarm according to claim 6, characterized in that: The protection control module includes an eleventh resistor, a fifth diode, a smoke detection device, a sixth diode, a seventh diode and an eighth diode; The power supply end of the smoke detection device is connected to the cathode of the fifth diode and connected to the first end of the first rectifier through the eleventh resistor, the anode of the fifth diode is connected to the ground end of the smoke detection device, the fourth end of the first rectifier and the ground end, the output end of the smoke detection device is connected to the IO5 end of the first controller, the anode of the sixth diode, the anode of the seventh diode and the anode of the eighth diode, the cathode of the sixth diode, the cathode of the seventh diode and the cathode of the eighth diode are respectively connected to the gate of the fifth power tube, the base of the fourth switch tube and the gate of the sixth power tube.

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