CN107681212A - A kind of wireless network monitoring system of cascaded lithium ion batteries group - Google Patents

A kind of wireless network monitoring system of cascaded lithium ion batteries group Download PDF

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Publication number
CN107681212A
CN107681212A CN201710871162.6A CN201710871162A CN107681212A CN 107681212 A CN107681212 A CN 107681212A CN 201710871162 A CN201710871162 A CN 201710871162A CN 107681212 A CN107681212 A CN 107681212A
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CN
China
Prior art keywords
lithium ion
circuit
ion batteries
microprocessor
batteries group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710871162.6A
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Chinese (zh)
Inventor
董晓华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Dior Network Technology Co Ltd
Original Assignee
Kunshan Dior Network Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kunshan Dior Network Technology Co Ltd filed Critical Kunshan Dior Network Technology Co Ltd
Priority to CN201710871162.6A priority Critical patent/CN107681212A/en
Publication of CN107681212A publication Critical patent/CN107681212A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • H01M10/613—Cooling or keeping cold
    • 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
    • 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
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention discloses a kind of wireless network monitoring system of cascaded lithium ion batteries group, including digital temperature sensor, it is connected in parallel on the difference operational amplifying circuit at each single-unit lithium ion battery both ends in cascaded lithium ion batteries group, the output end of each difference operational amplifying circuit is connected by variable connector with the input of voltage modulate circuit, the output end of voltage modulate circuit is connected by AD Acquisition Circuit with microprocessor, digital temperature sensor is connected with microprocessor, and microprocessor is connected with sound light alarming circuit.The present invention is when the voltage deviation specified interval of monomer series-connected lithium ion battery, carry out sound, light alarm；When section as defined in cascaded lithium ion batteries group temperature departure, start radiator fan or heater, it is ensured that the normal work of cascaded lithium ion batteries group, and can remotely monitor, form wireless network monitoring system, simple system, easily realize, have a good application prospect.

Description

A kind of wireless network monitoring system of cascaded lithium ion batteries group
Technical field
The present invention relates to protection circuit technical field, and in particular to a kind of wireless network monitoring of cascaded lithium ion batteries group System.
Background technology
Lithium ion battery, there is high voltage, high power capacity, have extended cycle life, have a safety feature, therefore, extensively should Used in fields such as portable electric appts, electric automobile, space technology, national defense industry.It is concatenated by some section lithium ion batteries The dynamical lithium-ion battery packs of composition are most widely used.But because the voltage of every section cell is inconsistent, in use Battery does not allow overcharge, overdischarge, and the performance of battery and life-span are affected by temperature the features such as larger, it is necessary to cascaded lithium ion Battery pack is monitored, it is ensured that lithium ion battery in use has good state, or is gone wrong using middle battery vertical Alarm, power-supply management system takes safeguard immediately, and reminds related personnel to overhaul.The temperature of monomer voltage and battery pack Be distinguish cascaded lithium ion batteries groups whether the key technical indexes of normal work.Traditional direct sampling method, it will measure Monomer battery voltage is stored on noncapacitive and measured, and this method reaction time is slow, error is larger, control is complicated；Using fortune Put with light coupling relay to measure the monomer voltage of series battery, this method is very high to the linearity of optocoupler, causes hard Part cost is higher.How to overcome the problem of above-mentioned, be to be currently needed for solving the problems, such as.
The content of the invention
The purpose of the present invention is to overcome the problems of monitoring to cascaded lithium ion batteries group in the prior art.This hair The wireless network monitoring system of bright cascaded lithium ion batteries group, can be to the monomer voltage and series connection lithium of cascaded lithium ion batteries The temperature of ion battery group is monitored on-line, when the voltage deviation specified interval of single cascaded lithium ion batteries, carry out sound, light Alarm;When section as defined in cascaded lithium ion batteries group temperature departure, start radiator fan or heater, it is ensured that series connection lithium The normal work of ion battery group, and can remotely monitor, wireless network monitoring system is formed, is had a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of wireless network monitoring system of cascaded lithium ion batteries group, including digital temperature sensor, it is connected in parallel on series connection lithium The difference operational amplifying circuit at each single-unit lithium ion battery both ends, the output end of each difference operational amplifying circuit pass through multichannel in ion battery group Switch is connected with the input of voltage modulate circuit, and the output end of voltage modulate circuit passes through AD Acquisition Circuit and microprocessor It is connected, digital temperature sensor is connected with microprocessor, and microprocessor is connected with sound light alarming circuit, microprocessor It is connected by fan drive circuit with radiator fan, microprocessor is connected by heater drive circuit with heater, micro- Processor also establishes wireless connection by wireless WIFI communication modules and remote mobile terminal.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, the quantity and composition of difference operational amplifying circuit The single-unit lithium ion battery quantity of cascaded lithium ion batteries group is consistent.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, microprocessor are MPS430 single-chip microcomputers.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, digital temperature sensor are The digital temperature sensor of DS18B20 models.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, sound light alarming circuit are alarmed including LED Indicating circuit and sound warning circuit, LED police instructions circuit and sound warning circuit are connected with microprocessor respectively.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, in addition to clock circuit, storage circuit, Watchdog circuit, clock circuit, storage circuit, watchdog circuit are connected with microprocessor respectively.
A kind of wireless network monitoring system of foregoing cascaded lithium ion batteries group, it is provided with AD Acquisition Circuit MAX1272 sampling A/D chips.
The beneficial effects of the invention are as follows：The wireless network monitoring system of the cascaded lithium ion batteries group of the present invention, can be right The monomer voltage of cascaded lithium ion batteries and the temperature of cascaded lithium ion batteries group are monitored on-line, when single cascaded lithium ion electricity During the voltage deviation specified interval in pond, carry out sound, light alarm；When section as defined in cascaded lithium ion batteries group temperature departure, Start radiator fan or heater, it is ensured that the normal work of cascaded lithium ion batteries group, and can remotely monitor, form wireless network Network monitoring system, simple system, easily realize, have a good application prospect.
Brief description of the drawings
Fig. 1 is the system block diagram of the wireless network monitoring system of the cascaded lithium ion batteries group of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in figure 1, the wireless network monitoring system of the cascaded lithium ion batteries group of the present invention, including digital temperature pass Sensor, the difference operational amplifying circuit for being connected in parallel on each single-unit lithium ion battery both ends in cascaded lithium ion batteries group, each difference amplifier electricity The output end on road is connected by variable connector with the input of voltage modulate circuit, and the output end of the voltage modulate circuit is led to Cross AD Acquisition Circuit with microprocessor to be connected, the digital temperature sensor is connected with microprocessor, the microprocessor Device is connected with sound light alarming circuit, and the microprocessor is connected by fan drive circuit with radiator fan, micro- place Reason device is connected by heater drive circuit with heater, and the microprocessor is also by wireless WIFI communication modules and remotely Mobile terminal establishes wireless connection.
Preferably, the single-unit lithium ion battery number of the quantity of the difference operational amplifying circuit and composition cascaded lithium ion batteries group Amount is consistent, difference operational amplifying circuit selection INA117 operational amplifiers, to solve the common ground problem of cascaded lithium ion batteries group The distortion of INA117 operational amplifiers is 0. 001%；Conjugated analoging systeming ratio 86 dB of minimum, common-mode input voltage range ± 200 V, it is suitable for high-precision measurement.
Preferably, the microprocessor is MPS430 single-chip microcomputers, moderate, and is provided with enough Peripheral Interfaces, It is easy to extend, it is low in energy consumption, it is easy to long-term use.
Preferably, the digital temperature sensor is the digital temperature sensor of DS18B20 models, is easy to monitoring to go here and there Join the temperature of Li-ion batteries piles.
Preferably, the sound light alarming circuit includes LED police instructions circuit and sound warning circuit, the LED alarms Indicating circuit and sound warning circuit are connected with microprocessor respectively, when the voltage deviation of single cascaded lithium ion batteries provides area Between when, carry out sound, light alarm, be easy to user to find.
Preferably, the wireless network monitoring system of cascaded lithium ion batteries group of the invention, in addition to clock circuit, storage Circuit, watchdog circuit, the clock circuit, storage circuit, watchdog circuit are connected with microprocessor respectively, clock circuit Work clock can be provided to microprocessor；Storage circuit, for the data and program after storage microprocessor processing；House dog Circuit, can be when microprocessor receives external interference（Electrostatic interference etc.）, during microprocessor crash, restart microprocessor, protect Demonstrate,prove its normal work.
Preferably, MAX1272 sampling A/D chips are provided with the AD Acquisition Circuit, low in energy consumption, cost is low, collection voltages Precision is high.
In summary, the wireless network monitoring system of cascaded lithium ion batteries group of the invention, can be to cascaded lithium ion The monomer voltage of battery and the temperature of cascaded lithium ion batteries group are monitored on-line, when the voltage of single cascaded lithium ion batteries is inclined During from specified interval, carry out sound, light alarm；When section as defined in cascaded lithium ion batteries group temperature departure, start radiation air Fan or heater, it is ensured that the normal work of cascaded lithium ion batteries group, and can remotely monitor, form wireless network monitoring system System, has a good application prospect.
General principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (7)

  1. A kind of 1. wireless network monitoring system of cascaded lithium ion batteries group, it is characterised in that：Including digital temperature sensor, Be connected in parallel on the difference operational amplifying circuit at each single-unit lithium ion battery both ends in cascaded lithium ion batteries group, each difference operational amplifying circuit it is defeated Go out end by variable connector with the input of voltage modulate circuit to be connected, the output end of the voltage modulate circuit is adopted by AD Collector is connected with microprocessor, and the digital temperature sensor is connected with microprocessor, the microprocessor and sound Optical alarm circuit is connected, and the microprocessor is connected by fan drive circuit with radiator fan, and the microprocessor leads to Cross heater drive circuit with heater to be connected, the microprocessor is also whole by wireless WIFI communication modules and remote mobile Wireless connection is established at end.
  2. A kind of 2. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Institute The quantity for stating difference operational amplifying circuit is consistent with the single-unit lithium ion battery quantity for forming cascaded lithium ion batteries group.
  3. A kind of 3. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Institute It is MPS430 single-chip microcomputers to state microprocessor.
  4. A kind of 4. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Institute State the digital temperature sensor that digital temperature sensor is DS18B20 models.
  5. A kind of 5. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Institute Stating sound light alarming circuit includes LED police instructions circuit and sound warning circuit, the LED police instructions circuit and audible alarm Circuit is connected with microprocessor respectively.
  6. A kind of 6. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Also Including clock circuit, storage circuit, watchdog circuit, the clock circuit, storage circuit, watchdog circuit respectively with microprocessor Device is connected.
  7. A kind of 7. wireless network monitoring system of cascaded lithium ion batteries group according to claim 1, it is characterised in that：Institute State and MAX1272 sampling A/D chips are provided with AD Acquisition Circuit.
CN201710871162.6A 2017-09-24 2017-09-24 A kind of wireless network monitoring system of cascaded lithium ion batteries group Pending CN107681212A (en)

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CN201710871162.6A CN107681212A (en) 2017-09-24 2017-09-24 A kind of wireless network monitoring system of cascaded lithium ion batteries group

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CN201710871162.6A CN107681212A (en) 2017-09-24 2017-09-24 A kind of wireless network monitoring system of cascaded lithium ion batteries group

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962685A (en) * 2019-12-06 2020-04-07 江西博能上饶客车有限公司 Battery management system for electric motor coach

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Publication number Priority date Publication date Assignee Title
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CN106300459A (en) * 2015-05-20 2017-01-04 重庆瑞升康博电气有限公司 Electric vehicle lithium battery group intelligent protection device
CN106848448A (en) * 2017-01-12 2017-06-13 深圳市信宇人科技有限公司 Lithium-ion-power cell on-line monitoring method and its electrokinetic cell based on wireless transmission method

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Publication number Priority date Publication date Assignee Title
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CN105186610A (en) * 2015-09-07 2015-12-23 湖北工业大学 Battery management system and method based on wireless sensor network communication
CN106848448A (en) * 2017-01-12 2017-06-13 深圳市信宇人科技有限公司 Lithium-ion-power cell on-line monitoring method and its electrokinetic cell based on wireless transmission method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110962685A (en) * 2019-12-06 2020-04-07 江西博能上饶客车有限公司 Battery management system for electric motor coach

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Application publication date: 20180209

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