CN113904027B - Battery charging and heating system and method - Google Patents
Battery charging and heating system and method Download PDFInfo
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- CN113904027B CN113904027B CN202110987700.4A CN202110987700A CN113904027B CN 113904027 B CN113904027 B CN 113904027B CN 202110987700 A CN202110987700 A CN 202110987700A CN 113904027 B CN113904027 B CN 113904027B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 28
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims description 30
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000008447 perception Effects 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery charging and heating system, which relates to the technical field of battery management, and comprises: the power supply module is used for supplying direct current to the voltage stabilizing module, the heating module, the temperature sensing module and the protection module; the heating module is used for heating the battery temperature when the power supply module inputs voltage and the current limiting module inputs voltage; the temperature sensing module is used for detecting the temperature of the battery and outputting a temperature signal, and is used for disconnecting the power supply module from the heating module when the temperature signal reaches a threshold value; the voltage stabilizing module is used for supplying voltage to the current limiting module; compared with the prior art, the invention has the beneficial effects that: the invention controls whether the electric heating sheet heats the battery or not by switching on or not the circuits of the temperature sensors at different temperatures, thereby automatically controlling the temperature of the battery during charging, heating the battery during charging, avoiding electric energy loss, having a protection circuit, preventing the battery from overhigh temperature and shortening the service life.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to a battery charging and heating system and a battery charging and heating method.
Background
The power battery pack is used as a power source of the electric vehicle, the situation that electricity cannot be charged can occur under the condition that the temperature is low in winter, and the experience of a user is seriously influenced, so that the problem of how to charge the power battery pack at low temperature is urgently needed to be solved by the industry.
At present, a heating sheet is often placed in the battery, connected to a BMS system, and heating time is set, and heating is stopped when the heating time is up, which has a disadvantage in that it is not known whether a chargeable temperature of a charger is reached within the set time; in light of the above problems, improvements are needed.
Disclosure of Invention
The present invention is directed to a battery charging and heating system and method, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a battery charging heating system comprising:
the power supply module is used for supplying direct current to the voltage stabilizing module, the heating module, the temperature sensing module and the protection module;
the heating module is used for heating the battery temperature when the power supply module inputs voltage and the current limiting module inputs voltage;
the temperature sensing module is used for detecting the temperature of the battery and outputting a temperature signal, and is used for disconnecting the power supply module from the heating module when the temperature signal reaches a threshold value;
the voltage stabilizing module is used for supplying voltage to the current limiting module;
the current limiting module is used for supplying charging current for the battery;
a battery module for indicating whether the battery is being charged;
the protection module is used for controlling the heating module to stop working when the temperature sensing module breaks down;
the output end of the power supply module is connected with the first input end of the heating module, the first input end of the temperature sensing module, the input end of the voltage stabilizing module, the first input end of the protection module, the output end of the heating module is connected with the first input end of the battery module, the output end of the voltage stabilizing module is connected with the input end of the current limiting module, the output end of the current limiting module is connected with the second input end of the battery module, the second input end of the heating module, the output end of the battery module is connected with the second input end of the temperature sensing module, the output end of the temperature sensing module is connected with the second input end of the protection module, and the output end of the protection module is connected with the third input end of the heating module.
As a still further scheme of the invention: the heating module comprises a second resistor, a first triode, an electric heating piece, a first capacitor, a first potentiometer, a third resistor, an AND gate and a second switch, the output end of the power supply module is connected to one end of the second resistor, the second switch, the first potentiometer is connected to the other end of the second switch, the collector electrode of the first triode is connected to the other end of the second resistor, the emitter electrode of the first triode is connected with one end of the input end of the AND gate, the electric heating piece is connected to the output end of the AND gate, the other end of the electric heating piece is grounded, the base electrode of the first triode is connected with the first capacitor, the other end of the first potentiometer, the third resistor, the other end of the first capacitor is grounded, and the other end of the third resistor is grounded.
As a still further scheme of the invention: the current limiting module comprises a fourth triode, a sixth resistor, a fourth potentiometer and a fourth capacitor, wherein an emitting electrode of the fourth triode is connected with the output end of the voltage stabilizing module, a base electrode of the fourth triode is connected with the sixth resistor, the other end of the sixth resistor is connected with the fourth potentiometer, the other end of the fourth potentiometer is grounded, a collector electrode of the fourth triode is connected with the fourth capacitor, the second input end of the battery module and the other end of the input end of the AND gate, and the other end of the fourth capacitor is grounded.
As a still further scheme of the invention: the battery module comprises a protection board, a second diode, a third diode and a battery, wherein the third end of the protection board is connected with the output end of the current limiting module, the first end of the protection board is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the third diode, the cathode of the third diode is connected with the anode of the battery, and the cathode of the battery is connected with the second end of the protection board.
As a still further scheme of the invention: the temperature perception module comprises a second triode, a third triode, a first diode, a second potentiometer, a temperature sensor and a fifth capacitor, the output end of the temperature sensor is connected with the negative electrode of the first diode, the positive electrode of the first diode is connected with the fifth capacitor, the second potentiometer is grounded, the other end of the fifth capacitor is grounded, the other end of the second potentiometer is connected with the base electrode of the third triode, the emitter electrode of the third triode is connected with the base electrode of the second triode, the emitter electrode of the second triode is grounded, the collector electrode of the second triode is connected with the collector electrode of the third triode, and the output end of the power supply module is connected with the output end of the power supply module.
As a still further scheme of the invention: the protection module comprises a fourth triode, a phase inverter and a relay, wherein the base electrode of the fourth triode is connected with the output end of the temperature sensor, the emitting electrode of the fourth triode is connected with the input end of the phase inverter, the output end of the phase inverter is connected with the relay, and the other end of the relay is grounded.
A battery charging heating method applied to the battery charging heating system as described above, the method comprising: step 1: the power supply module starts to supply power, and when the temperature of the battery is lower than a lower limit threshold value, the heating module heats the battery and charges the battery at the same time; step 2: when the temperature of the battery reaches an upper limit threshold value, the heating module stops heating the battery; and step 3: and (3) in winter, the temperature of the battery falls back, and the step 1 and the step 2 are repeated until the battery is fully charged.
As a still further scheme of the invention: in the step 1, the power supply module supplies direct current to charge the battery through the voltage stabilizing module and the current limiting module, and the power supply module supplies power to the heating module and does not supply power to the temperature sensing module because the temperature of the battery is lower than the lower limit threshold value and the battery is being charged, and the heating module heats the battery.
As a still further scheme of the invention: in the step 2, when the temperature of the battery continuously rises to reach an upper limit threshold value, the power supply module stops supplying power to the heating module, the power supply module supplies power to the temperature sensing module, the heating module stops heating the battery, and when the temperature sensing module breaks down, the protection module controls the heating module to stop working.
As a still further scheme of the invention: in step 3, in winter, the temperature of the battery falls back, and the steps 1 and 2 are repeated, so that the battery is always at the proper temperature until the battery is fully charged.
Compared with the prior art, the invention has the beneficial effects that: the invention controls whether the electric heating sheet heats the battery or not by switching on or not the circuits of the temperature sensors at different temperatures, thereby automatically controlling the temperature of the battery during charging, heating the battery during charging, avoiding electric energy loss, having a protection circuit, preventing the battery from overhigh temperature and shortening the service life.
Drawings
Fig. 1 is a schematic diagram of a battery charging heating system.
Fig. 2 is a circuit diagram of a battery charging and heating system.
Fig. 3 is a graph of the current-voltage characteristic of the zener diode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, a battery charging and heating system includes:
the power supply module 1 is used for supplying direct current to the voltage stabilizing module 5, the heating module 2, the temperature sensing module 3 and the protection module 7;
the heating module 2 is used for heating the battery temperature when the power supply module 1 inputs voltage and the current limiting module 6 inputs voltage;
the temperature sensing module 3 is used for detecting the temperature of the battery and outputting a temperature signal, and is used for disconnecting the power supply module 1 from the heating module 2 when the temperature signal reaches a threshold value;
a voltage stabilizing module 5 for supplying voltage to the current limiting module 6;
a current limiting module 6 for supplying a charging current to the battery;
a battery module 4 for indicating whether the battery is being charged;
the protection module 7 is used for controlling the heating module to stop working when the temperature sensing module 3 fails;
the first input of heating module 2 is connected to power module 1's output, the first input of temperature sensing module 3, voltage stabilizing module 5's input, protection module 7's first input, the first input of battery module 4 is connected to heating module 2's output, current limiting module 6's input is connected to voltage stabilizing module 5's output, battery module 4's second input is connected to current limiting module 6's output, the second input of heating module 2, the second input of temperature sensing module 3 is connected to battery module 4's output, protection module 7's second input is connected to temperature sensing module 3's output, heating module 2's third input is connected to protection module 7's output.
In this embodiment: referring to fig. 2, the heating module 2 includes a second resistor R2, a first triode V1, a heater strip X, a first capacitor C1, a first potentiometer RP1, a third resistor R3, an and gate U4, and a second switch S2, one end of the second resistor R2 is connected to the output terminal of the power supply module 1 and the second switch S2, the other end of the second switch S2 is connected to the first potentiometer RP1, the other end of the second resistor R2 is connected to the collector of the first triode V1, the emitter of the first triode V1 is connected to one end of the input terminal of the and gate U4, the output terminal of the and gate U4 is connected to the heater strip X, the other end of the heater strip X is grounded, the base of the first triode V1 is connected to the first capacitor C1, the other end of the first potentiometer RP1 and the third resistor R3, the other end of the first capacitor C1 is grounded, and the other end of the third resistor R3 is grounded.
When the power supply module 1 supplies direct current, and the battery charging circuit is conducted, at this time, the and gate U4 outputs high level to control the operation of the electric heating sheet X, and the conducting degree of the first triode V1 is adjusted by adjusting the first potentiometer RP1, so as to adjust the operating power of the electric heating sheet X.
In another embodiment, the first potentiometer RP1 can be replaced by a resistor, which can result in the operating power of the heating strip X being unregulated.
In this embodiment: referring to fig. 2, the current limiting module 6 includes a fourth transistor V4, a sixth resistor R6, a fourth potentiometer RP4, and a fourth capacitor C4, an emitter of the fourth transistor V4 is connected to the output terminal of the voltage stabilizing module 5, a base of the fourth transistor V4 is connected to the sixth resistor R6, the other end of the sixth resistor R6 is connected to the fourth potentiometer RP4, the other end of the fourth potentiometer RP4 is grounded, a collector of the fourth transistor V4 is connected to the fourth capacitor C4, the second input terminal of the battery module 4, the other end of the input terminal of the and gate U4, and the other end of the fourth capacitor C4 is grounded.
The conduction degree of the fourth triode V4 is controlled to control the current output to the battery module 4, and the resistance value and the size of the resistor connected with the base electrode of the fourth triode V4 are changed by adjusting the fourth potentiometer RP4, so that the conduction degree of the base electrode of the fourth triode V4 is changed.
In another embodiment, the fourth potentiometer RP4 may be omitted, which may result in an unregulated current output to the battery module 4.
In this embodiment: referring to fig. 2, the battery module 4 includes a protection board U2, a second diode D2, a third diode D3, and a battery E1, a third end of the protection board U2 is connected to the output end of the current limiting module 6, a first end of the protection board U2 is connected to the anode of the second diode D2, a cathode of the second diode D2 is connected to the anode of the third diode D3, a cathode of the third diode D3 is connected to the anode of the battery E1, and a cathode of the battery E1 is connected to the second end of the protection board U2.
The protection board U2 has functions of preventing overcharge, overdischarge, overcurrent, etc. of the battery E1, when the battery E1 is charged, current flows through the second diode D2, the third diode D3 and the battery E1, so that the second diode D2 (the second diode D2 is a light emitting diode) emits light to indicate that the battery E1 is being charged, and after the battery E1 stops charging, the second diode D2 is extinguished.
In another embodiment, the second diode D2 may be omitted, which may make it difficult to determine whether the battery E1 is fully charged.
In this embodiment: referring to fig. 2 and 3, the temperature sensing module 3 includes a second triode V2, a third triode V3, a first diode D1, a second potentiometer RP2, a temperature sensor Y, and a fifth capacitor C5, an output end of the temperature sensor Y is connected to a negative electrode of the first diode D1, a positive electrode of the first diode D1 is connected to the fifth capacitor C5 and the second potentiometer RP2, the other end of the fifth capacitor C5 is grounded, the other end of the second potentiometer RP2 is connected to a base of the third triode V3, an emitter of the third triode V3 is connected to a base of the second triode V2, an emitter of the second triode V2 is grounded, and a collector of the second triode V2 is connected to a collector of the third triode V3 and an output end of the power supply module 1.
The first diode D1 is a voltage stabilizing diode, when the voltage on the voltage stabilizing diode is lower than the conducting voltage, the voltage stabilizing diode is not conducted, when the voltage on the voltage stabilizing diode is higher than the conducting voltage, the voltage stabilizing diode is conducted, the temperature sensor Y senses the temperature of the battery E1 and converts the temperature signal into a voltage signal, the sensed temperature and the output voltage are in direct proportion in a certain temperature range, when the temperature of the battery E1 is lower than 20 ℃, the voltage output by the temperature sensor Y cannot enable the third triode V3 and the second triode V2 to be conducted, when the temperature of the battery E1 reaches 20 ℃, the voltage output by the temperature sensor Y is charged by the fifth capacitor C5 and delayed to enable the third triode V3 to be conducted, and then the second triode V2 is conducted, the second triode V2 and the third triode V3 form a Darlington tube, and the voltage output by the emitter of the second triode V2 is ensured to be larger when the base voltage of the third triode V3 is smaller, the third triode V3 that sets for in this scheme switches on needs 20 degrees centigrade, can change the demand temperature that third triode V3 switched on through adjusting the resistance of second potentiometre RP 2.
In another embodiment, the second potentiometer RP2 may be replaced by a resistor, which may make the turn-on temperature of the third transistor V3 difficult to adjust.
In this embodiment: referring to fig. 2, the protection module includes a fourth transistor V4, an inverter U3, and a relay J2, wherein a base of the fourth transistor V4 is connected to an output terminal of the temperature sensor Y, an emitter of the fourth transistor V4 is connected to an input terminal of the inverter U3, an output terminal of the inverter U3 is connected to the relay J2, and another terminal of the relay J2 is grounded.
When the relay J2 works, the second switch is switched off, and when the relay J2 does not work, the second switch is switched on; when the temperature sensor Y works normally, a voltage signal is output, the fourth triode V4 is conducted, the fourth triode V4 outputs a high level, the inverter U3 outputs a low level, and the relay J2 does not work; when the temperature sensor Y fails, a voltage signal cannot be output, the inverter U3 outputs a high level, and the relay J2 works; and the second switch is turned off, the heating module stops working, and the battery E1 is prevented from being damaged by the fact that the heating module works all the time.
In another embodiment, the fourth transistor V4 may be omitted, which may result in a low output voltage of the temperature sensor Y, and the inverter U3 may determine that no voltage signal is input, thereby controlling the operation of the relay J2.
A battery charging heating method applied to the battery charging heating system as described above, the method comprising: step 1: when the power supply module 1 starts to supply power and the temperature of the battery E1 is lower than the lower limit threshold value, the heating module 2 heats the battery E1 and simultaneously charges the battery E1; step 2: when the temperature of the battery E1 reaches the upper limit threshold value, the heating module 2 stops heating the battery E1; and step 3: in winter, the temperature of the battery E1 drops back, and the step 1 and the step 2 are repeated until the battery E1 is fully charged.
In this embodiment: referring to fig. 2 and fig. 3, in step 1, the power supply module 1 supplies dc power to charge the battery through the voltage stabilizing module 5 and the current limiting module 6, and since the temperature of the battery E1 is lower than the lower threshold and the battery E1 is being charged, the power supply module 1 supplies power to the heating module 2, but does not supply power to the temperature sensing module 3, and the heating module 1 heats the battery E1.
The first switch S1 is closed, the power supply module 1 supplies alternating current to charge the battery E1 through the voltage stabilizing module 5 and the current limiting module 6, the temperature of the battery E1 is lower than the lower limit threshold value, a voltage signal output by the temperature sensor Y of the temperature sensing module 3 is small, the voltage cannot pass through the first diode D1, the third triode V3 and the second triode V2 are not conducted, the power supply module 1 supplies power to the heating module 2, the battery E1 is charging, the AND gate U4 outputs high level, and the electric heating sheet X works to heat the battery E1.
In this embodiment: referring to fig. 2 and 3, in step 2, when the temperature of the battery E1 continuously rises to reach the upper threshold, the power supply module 1 stops supplying power to the heating module 2, and then supplies power to the temperature sensing module 3, the heating module 1 stops heating the battery E1, and when the temperature sensing module 3 fails, the protection module 7 controls the heating module 2 to stop working.
Because the temperature of the battery E1 reaches the lower limit threshold value, the voltage output by the temperature sensor Y charges the fifth capacitor C5 through the first diode D1, after the charging is continued for a period of time, the voltage on the fifth capacitor C5 can enable the third triode V3 to be conducted through the second potentiometer RP2, and further enable the second triode V2 to be conducted, so that the power supply module 1 stops supplying power to the heating module 2, because the time is delayed for a period of time, the temperature of the battery E1 reaches the upper limit threshold value at the moment, when the temperature sensor Y fails, the inverter U3 inside the protection module 7 outputs a high level, the relay J2 works to control the second switch S2 to be disconnected, and the heating module 2 is not in work when the power is cut off.
In this embodiment: referring to fig. 2 and 3, in step 3, in winter, the temperature of the battery E1 drops, and step 1 and step 2 are repeated, so that the battery E1 is at an appropriate temperature until the battery E1 is fully charged.
When the outside temperature is lower and the temperature of the battery E1 drops back to be slightly lower than the lower threshold value, the step 1 and the step 2 are repeated, the battery E1 is ensured to be charged under the condition of proper temperature until the battery E1 is fully charged, the protection board U2 prevents the battery E1 from being overcharged, the power supply circuit is disconnected, the second diode D2 serving as the indicator light does not emit light any more, and a user is reminded that the battery E1 is fully charged.
The working principle of the invention is as follows: power module 1 is voltage stabilizing module 5, heating module 2, temperature perception module 3 supplies the direct current, heating module 2 heats for battery E1, battery E1 charging efficiency is low when preventing battery E1 temperature from being lower, temperature perception module 3 perception battery E1's temperature, it makes battery E1 high temperature to prevent heating module 2, reduce battery E1 life-span, power module 1 passes through voltage stabilizing module 5, current-limiting module 6 charges for battery E1, battery module 4 contains protection shield U2 protection battery E1, extension battery E1 life-span, contain second diode D2, indicate whether battery E1 is charging.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A battery charging heating system, characterized by:
the battery charging heating system includes:
the power supply module is used for supplying direct current to the voltage stabilizing module, the heating module, the temperature sensing module and the protection module;
the heating module is used for heating the battery temperature when the power supply module inputs voltage and the current limiting module inputs voltage;
the temperature sensing module is used for detecting the temperature of the battery and outputting a temperature signal, and is used for disconnecting the power supply module from the heating module when the temperature signal reaches an upper limit threshold value;
the voltage stabilizing module is used for supplying voltage to the current limiting module;
the current limiting module is used for supplying charging current for the battery;
a battery module for indicating whether the battery is being charged;
the protection module is used for controlling the heating module to stop working when the temperature sensing module breaks down;
the output end of the power supply module is connected with the first input end of the heating module, the first input end of the temperature sensing module, the input end of the voltage stabilizing module, the first input end of the protection module, the output end of the heating module is connected with the first input end of the battery module, the output end of the voltage stabilizing module is connected with the input end of the current limiting module, the output end of the current limiting module is connected with the second input end of the battery module, the second input end of the heating module, the output end of the battery module is connected with the second input end of the temperature sensing module, the output end of the temperature sensing module is connected with the second input end of the protection module, and the output end of the protection module is connected with the third input end of the heating module.
2. The battery charging and heating system of claim 1, wherein the heating module comprises a second resistor, a first triode, an electric heating plate, a first capacitor, a first potentiometer, a third resistor, an AND gate, and a second switch, one end of the second resistor is connected to the output end of the power supply module and the second switch, the other end of the second switch is connected to the first potentiometer, the other end of the second resistor is connected to the collector of the first triode, the emitter of the first triode is connected to one end of the input end of the AND gate, the output end of the AND gate is connected to the electric heating plate, the other end of the electric heating plate is grounded, the base of the first triode is connected to the first capacitor, the other end of the first potentiometer and the third resistor, the other end of the first capacitor is grounded, and the other end of the third resistor is grounded.
3. The battery charging and heating system of claim 1, wherein the current limiting module comprises a fourth transistor, a sixth resistor, a fourth potentiometer and a fourth capacitor, wherein an emitter of the fourth transistor is connected to the output terminal of the voltage stabilizing module, a base of the fourth transistor is connected to the sixth resistor, the other end of the sixth resistor is connected to the fourth potentiometer, the other end of the fourth potentiometer is grounded, a collector of the fourth transistor is connected to the fourth capacitor, the second input terminal of the battery module and the other end of the input terminal of the and gate, and the other end of the fourth capacitor is grounded.
4. The battery charging and heating system as claimed in claim 1, wherein the battery module comprises a protection board, a second diode, a third diode, and a battery, wherein a third end of the protection board is connected to the output end of the current limiting module, a first end of the protection board is connected to the anode of the second diode, the cathode of the second diode is connected to the anode of the third diode, the cathode of the third diode is connected to the anode of the battery, and the cathode of the battery is connected to the second end of the protection board.
5. The battery charging and heating system of claim 1, wherein the temperature sensing module comprises a second triode, a third triode, a first diode, a second potentiometer, a temperature sensor, and a fifth capacitor, wherein the output terminal of the temperature sensor is connected to the negative terminal of the first diode, the positive terminal of the first diode is connected to the fifth capacitor and the second potentiometer, the other terminal of the fifth capacitor is grounded, the other terminal of the second potentiometer is connected to the base of the third triode, the emitter of the third triode is connected to the base of the second triode, the emitter of the second triode is grounded, and the collector of the second triode is connected to the collector of the third triode and the output terminal of the power supply module.
6. The battery charging and heating system of claim 1, wherein the protection module comprises a fourth transistor, an inverter and a relay, wherein a base of the fourth transistor is connected to the output terminal of the temperature sensor, an emitter of the fourth transistor is connected to the input terminal of the inverter, an output terminal of the inverter is connected to the relay, and the other terminal of the relay is grounded.
7. A battery charging heating method applied to the battery charging heating system according to any one of claims 1 to 6, characterized in that: the method comprises the following steps: step 1: the power supply module is controlled to supply power, the battery is charged, and when the temperature of the battery is lower than a lower limit threshold value, the heating module heats the battery; step 2, when the temperature of the battery reaches an upper limit threshold value, the heating module stops heating the battery; and step 3: and (5) dropping the temperature of the battery, and repeating the step 1 and the step 2 until the battery is fully charged.
8. The method as claimed in claim 7, wherein in step 1, the power supply module supplies direct current to charge the battery via the voltage stabilizing module and the current limiting module, and since the temperature of the battery is lower than the lower threshold and the battery is being charged, the power supply module supplies voltage to the heating module, the temperature sensing module does not operate, and the heating module heats the battery.
9. The battery charging and heating method according to claim 7, wherein in step 2, the battery temperature continuously rises to reach the upper threshold, the power supply module stops supplying voltage to the heating module, and supplies voltage to the temperature sensing module, the heating module stops heating the battery, and the protection module controls the heating module to stop working when the temperature sensing module fails.
10. The method of claim 7, wherein in step 3, the temperature of the battery is dropped, and step 1 and step 2 are repeated until the battery is fully charged.
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| CN103419663B (en) * | 2012-05-22 | 2015-11-25 | 比亚迪股份有限公司 | The power system of electronlmobil, electronlmobil and heating of battery method |
| CN102842935A (en) * | 2012-09-20 | 2012-12-26 | 上海广为美线电源电器有限公司 | Lithium battery emergency starting power supply with low temperature automatic pre-heating function |
| FR2996694B1 (en) * | 2012-10-04 | 2015-09-18 | Commissariat Energie Atomique | CIRCUIT FOR MANAGING THE CHARGE OF A BATTERY |
| US9337680B2 (en) * | 2013-03-12 | 2016-05-10 | Ford Global Technologies, Llc | Method and system for controlling an electric vehicle while charging |
| KR101925002B1 (en) * | 2015-08-21 | 2018-12-04 | 주식회사 엘지화학 | Apparatus of Adjusting Charging Condition of Secondary Battery and Method thereof |
| CN105553012B (en) * | 2015-12-31 | 2018-06-15 | 惠州市亿能电子有限公司 | A kind of low temperature charge control system and control method |
| CN205265299U (en) * | 2015-12-31 | 2016-05-25 | 惠州市亿能电子有限公司 | Novel control circuit charges |
| CN207116622U (en) * | 2017-06-26 | 2018-03-16 | 北京纳波克动力科技有限公司 | A kind of battery protecting plate |
| CN207303302U (en) * | 2017-10-18 | 2018-05-01 | 广州极飞科技有限公司 | A kind of battery heater circuit, battery and unmanned plane |
| JP6911064B2 (en) * | 2019-01-09 | 2021-07-28 | 本田技研工業株式会社 | Storage battery charging system and storage battery charging system control device |
| CN109818109B (en) * | 2019-03-04 | 2020-12-15 | 广州小鹏汽车科技有限公司 | Low-temperature protection system and protection method for power battery |
| CN211908418U (en) * | 2020-04-11 | 2020-11-10 | 深圳市超力源科技有限公司 | Secondary lithium battery heating control circuit |
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Effective date of registration: 20240619 Address after: 518000 room 2303, unit 3a, phase II, smart home, No. 76, Baohe Avenue, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Phoenix Technology Co.,Ltd. Country or region after: China Address before: 518100 workshop a903, No. 3, Longgang Tian'an Digital Innovation Park, No. 449, Huangge North Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen, Guangdong Province Patentee before: Shenzhen shendun Energy Technology Co.,Ltd. Country or region before: China |