CN103580073A - Battery monitoring and protecting device and system and method thereof - Google Patents

Battery monitoring and protecting device and system and method thereof Download PDF

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Publication number
CN103580073A
CN103580073A CN201210256401.4A CN201210256401A CN103580073A CN 103580073 A CN103580073 A CN 103580073A CN 201210256401 A CN201210256401 A CN 201210256401A CN 103580073 A CN103580073 A CN 103580073A
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China
Prior art keywords
sensing
battery
module
unit
cell monitoring
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Pending
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CN201210256401.4A
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Chinese (zh)
Inventor
许世敬
廖健智
庄继圣
戴于珽
梁官靖
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EMERALD BATTERY TECHNOLOGIES Co Ltd
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EMERALD BATTERY TECHNOLOGIES Co Ltd
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Priority to CN201210256401.4A priority Critical patent/CN103580073A/en
Publication of CN103580073A publication Critical patent/CN103580073A/en
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Abstract

Provided are a battery monitoring and protecting device and system and method thereof. The battery monitoring and protecting device is used in coordination with a battery module and comprises a sensing module and a control module in electric connection with the battery module and the sensing module. The sensing module comprises an acceleration sensing unit for sensing changes of inclination angle and acceleration of the battery module, a temperature and humidity sensing unit for sensing changes of the temperature and humidity of the battery module, and at least one gas sensing unit for sensing changes of gas of the battery module. The control module controls the battery module to be charged or discharged according to the sensing result of at least one sensing unit to sense the temperature, humidity, voltage and currents of the battery module, achieve battery capacity calculation and short circuit detection and sense whether the battery module is in states of intense impact, tilting, turnover, dropping-down, immersion and the like, and immediately cuts off power output of the battery module when abnormal conditions occur.

Description

Battery cell monitoring and protective device and System and method for thereof
Technical field
The present invention relates to a kind of supervising device, refer to especially a kind of battery cell monitoring and protective device.
Background technology
Along with scientific and technological industry is fast-developing, the numerous and confused and electronics technology technology of every field is applied integration, further to promote value and the advantage of competition.
With auto electronic technology, Vehicular battery is mainly to support light-emitting diode (LED), multimedia video, the power source of the relevant auxiliary equipment such as global positioning system (GPS), yet, the charging and discharging state that battery management system in vehicle only can sensing battery now (for example: overcharge or cross and put), for vehicle, there is strong shock, overturning, fall, burnings etc. are unexpected, or while there is the situations such as leakage in the electrolysis tank of battery, can not suitably monitor and protect, make when those special circumstances occur, battery meeting continued power is to the main system circuit in vehicle, cause being short-circuited, the danger that flame even explodes.
Summary of the invention
The object of the present invention is to provide a kind of can sensing battery humiture, whether in strong shock, inclination, overturning, fall, battery cell monitoring and the protective device of the state such as immersion.Battery cell monitoring of the present invention and protective device, be used in conjunction with a battery module, this battery cell monitoring and protective device comprise: a sensing module, comprise the humiture sensing cell that the acceleration sensing unit of an inclination angle in order to this battery module of sensing and acceleration change, temperature in order to this battery module of sensing and humidity change, and the gas sensing unit that changes of gas in order to this battery module of sensing wherein at least one; And a control module, be electrically connected to this battery module and this sensing module, this control module according to this acceleration sensing unit, this humiture sensing cell and this gas sensing unit wherein the sensing result of at least one control this battery module and whether power.
Like this; this battery cell monitoring and protective device can sensing battery module humiture, voltage, electric current, battery capacity calculating, short-circuit detecting, whether in strong shock, inclination, overturning, fall, the various states such as immersion; and when there are abnormal conditions; the instant electric power output of cutting off battery module, makes this battery cell monitoring and protective device more trend towards safety, stable, reliable.
Preferably, sensing module comprises acceleration sensing unit, humiture sensing cell and three sensing cells of gas sensing unit, there to be more many-sided sensing content, and control module is according to wherein at least one sensing result of acceleration sensing unit, humiture sensing cell and gas sensing unit, to control battery module whether to power.
In addition; battery cell monitoring and protective device also comprise an alarm module that is electrically connected to control module; this alarm module can be demonstration or the light units in buzzer, vehicle; or alarm signal transceiver etc.; when control module control battery module is stopped power supply; can send warning by Synchronization Control alarm module, to inform related personnel.
Moreover battery cell monitoring and protective device also comprise a storage module that is electrically connected to control module, before control module control battery module is stopped power supply, can first the sensing result of sensing module be stored in storage module, so that analysis afterwards and maintenance.
Another object of the present invention be to provide a kind of can sensing battery humiture, whether in strong shock, inclination, overturning, fall, battery cell monitoring and the protection system of the state such as immersion.
Battery cell monitoring of the present invention and protection system, comprise a battery module and above-mentioned battery cell monitoring and protective device.
Preferably, battery module comprises a battery unit and a switch unit that is electrically connected to battery unit, control module is electrically connected to switch unit, and according to acceleration sensing unit, humiture sensing cell and gas sensing unit wherein at least one sensing result control switch unit in a conducting state that makes battery unit electric discharge, and switch between a nonconducting state that battery unit cannot be discharged, and then control battery module and whether power.
Another object of the present invention be to provide a kind of can according to the humiture of battery, whether in strong shock, inclination, overturning, fall, battery cell monitoring and guard method that the state such as immersion is cut off the electricity supply immediately.
Battery cell monitoring of the present invention and guard method, be applied to a battery cell monitoring and protective device, and battery cell monitoring and protective device and a battery module are used in conjunction with, and battery cell monitoring and guard method comprise following steps:
(A) the wherein variation of at least one of the inclination angle of sensing battery module, acceleration, humiture and gas;
(B) in determining step (A), whether one of them sensing result reaches a protective condition, if so, performs step (C); And
(C) stop battery module power supply.
Beneficial effect of the present invention is: humiture that can be by sensing battery module, voltage, electric current, battery capacity calculating, short-circuit detecting, whether in strong shock, inclination, overturning, fall, the state such as immersion; the instant electric power output of cutting off battery module, to maintain the safety of battery cell monitoring and protection system.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of explanation battery cell monitoring of the present invention and protection system;
Fig. 2 is the flow chart of explanation battery cell monitoring of the present invention and guard method.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.First it should be noted that, the present invention is not limited to following embodiment, and the spirit that those skilled in the art should embody from following execution mode is understood the present invention, and each technical term can be done the most wide in range understanding based on Spirit Essence of the present invention.In figure, same or analogous member uses the same reference numerals to represent.
Consult Fig. 1; battery cell monitoring and protection system 100 for preferred embodiment of the present invention; this battery cell monitoring and protection system 100 are to be applied in a vehicle; wherein comprise a battery module 10 and battery cell monitoring and protective device 20; battery cell monitoring and protective device 20 in order to the angle of inclination of monitoring battery module 10, have or not soak, the phenomenon such as leakage; and then the power supply of controlling battery module 10 whether, to maintain the safety of vehicle.
Battery module 10 comprises that one in order to the battery unit 11 of store electrical energy, this battery unit 11 can be a battery case or any storage unit of vehicle, in order to store electrical energy or discharge electric energy to a main system circuit 200 of vehicle, such as: engine, sound equipment etc.Battery module 10 also comprises a switch unit 12 being electrically connected between battery unit 11 and main system circuit 200; this switch unit 12 is controlled by battery cell monitoring and protective device 20 and a conducting state that battery unit 11 is electrically connected to main system circuit 200, and switches between a nonconducting state that makes battery unit 11 and main system circuit 200 not be electrically connected to (opening circuit).
Battery cell monitoring and protective device 20 comprise a control module 21 and a sensing module 22 that is electrically connected on control module 21; in the present embodiment, sensing module 22 comprises an acceleration sensing unit 221, humiture sensing cell 222, gas sensing unit 223 and a current sensing unit 224.
Control module 21 is a microcontroller (MCU), and it is electrically connected on the switch unit 12 of battery module 10, in order to according to the sensing result of sensing module 22, controls switch unit 12 and switches between conducting state and nonconducting state.
Acceleration sensing unit 221 is a gyroscope sensor chip (Chip), it can sensing static weight acceleration, by three axle (X, Y, Z axis) changing detection having or not motion to occur, vibration that can sensing any direction is to knock detection, can senses vehicle whether drop to carry out freely falling body detection etc., the acceleration sensing unit 221 reach ± 16G of selectable sensing range of the present embodiment, and be electrically connected on control module 21, in order to the inclination angle of sensing battery module 10 (with respect to X, Y, Z axis) change also angle of inclination of corresponding generation and change also acceleration signal of corresponding generation with shock power, make control module 21 according to this angle of inclination or this acceleration signal, switch the state of switch unit 12, and then control battery module 11 and whether power.For instance; if acceleration sensing unit 221 for example senses battery module 10, in heeling condition (: more than angle of inclination is greater than 45 degree); or in tilt state (for example: vehicle rollover); or vehicle dropped mountain valley, the full state such as sea that fall or while being clashed into; control module 21 can switch to nonconducting state by switch unit 12; to cut off the electric power output of battery unit 11, to protect the safety of main system circuit 200.
Humiture sensing cell 222 is electrically connected on control module 21, temperature in order to sensing battery module 10 changes and temperature-humidity signal of corresponding generation with humidity, make control module 21 according to this temperature-humidity signal, switch the state of switch unit 12, and then control battery module 11 and whether power.In other words, whether humiture sensing cell 222 has immersion in can sensing battery module 10 or the situation the such as whether position of putting too moist, to avoid contact or the metallic contact (not shown) of battery unit 11 to cause occurring burning corrosion or electric leakage in wet environment for a long time.If temperature or the humidity of control module 21 judgement battery modules 10 occur abnormal, for example: humidity reach 90% or temperature reach 85oC, switch unit 12 is switched to nonconducting state, to cut off the electric power output of battery unit 11, to maintain the useful life of battery unit 11.
Gas sensing unit 223 is electrically connected on control module 21, gas in order to sensing battery unit 11 changes and an olfactory signal of corresponding generation, make control module 21 according to this olfactory signal, switch the state of switch unit 12, and then control battery module 11 and whether power.In the present embodiment, it is mainly to detect battery unit 11 bodies whether to have generation leakage that the gas of gas sensing unit 223 sensing battery modules 10 changes, or whether battery unit 11 inside have to burn/burn and produce empyreumatic taste etc., in the present embodiment, before electrolyte spills, the gas in battery unit 11 can be LiPF 6(lithium hexafluoro phosphate), and after electrolyte spills, the gas in battery unit 11 can be HF (hydrofluoric acid) and POF 3(trifluoro one phosphorous oxide).Therefore, when the gas of control module 21 judgement battery modules 10 occurs when abnormal, switch unit 12 being switched to nonconducting state, to cut off the electric power output of battery unit 11.
Current sensing unit 224 is electrically connected on control module 21; voltage or curent change an electric power signal of corresponding generation in order to sensing battery module 10; make control module 21 according to this electric power signal, switch the state of switch unit 12; and then control battery module 11 and whether power, battery module 10 is done to the protections such as brownout, overtension, current overload, short-circuit detecting.If battery module 10 energy storage or release can process in that electric current occurs is excessive or the situation such as overcharge, current sensing unit 224 can sense the current anomaly of battery module 10, and then make control module 21 that switch unit 12 is switched to nonconducting state, to cut off the electric power output of battery unit 11.
Therefore, by humiture, the electric current charging and discharging state of sensing module 22 sensing battery modules 10, or sensing whether in strong shock, inclination, overturning, fall, the state such as immersion, and when there are abnormal conditions, the instant electric power output of cutting off battery module 10, makes its External Insulation isolation avoid being short-circuited to produce spark to cause danger.What specify is, the sensing module 22 of the present embodiment is to comprise acceleration sensing unit 221, humiture sensing cell 222 and gas sensing unit 223, there to be more many-sided sensing content, certainly, sensing module 22 also can only include acceleration sensing unit 221, humiture sensing cell 222 and gas sensing unit 223 wherein at least one, can reach the effect that the present invention maintains vehicle safety equally, therefore be not limited with the present embodiment.
In addition; this battery cell monitoring and protective device 20 also can comprise a storage module 23 that is electrically connected on control module 21; this storage module 23 can be a memory; when there are abnormal conditions in control module 21 judgements; can first the sensing result of sensing module 22 be stored in storage module 23, so that analysis afterwards and maintenance.Moreover; this battery cell monitoring and protective device 20 also can comprise that one is electrically connected on the alarm module 24 of control module 21; when abnormal conditions occur; control module 21 can be sent alarm signal by Synchronization Control alarm module 24; the alarm module 24 of the present embodiment can be demonstration in buzzer, vehicle or light units etc.; corresponding alarm signal can be voice signal, light signal etc.; alarm module 24 can also be an alarm signal transceiver; in order to transmit alarm signal to relay station or central control system (not shown), to inform related personnel.
Coordinate and to consult Fig. 2, below will describe the control flow of this battery cell monitoring and protective device 20 in detail.
Step S10, inclination angle and the acceleration change of acceleration sensing unit 221 sensing battery modules 10, and sensing result is sent to control module 21.
Step S20, the temperature of humiture sensing cell 222 sensing battery modules 10 and humidity change, and sensing result is sent to control module 21.
Step S30, the gas of gas sensing unit 223 sensing battery modules 10 changes, and sensing result is sent to control module 21.
Step S40, current sensing unit 224 sensing battery module 10 energy storage or release can time curent change, and sensing result is sent to control module 21.
What specify is, above-mentioned steps S10 to S40 is carried out by acceleration sensing unit 221, humiture sensing cell 222, gas sensing unit 223 and 224 4 sensing cells of current sensing unit respectively, therefore, the execution sequence of above-mentioned steps S10 to S40 can be exchanged arbitrarily or synchronously carry out.In addition, above-mentioned illustrated sensing module 22 can only include acceleration sensing unit 221, humiture sensing cell 222 and gas sensing unit 223 wherein at least one, therefore step S10 to S40 can coordinate the quantity of sensing cell in sensing module 22 to do corresponding increase and decrease.
Step S50, control module 21 judges that whether one of them sensing result of acceleration sensing unit 221, humiture sensing cell 222, gas sensing unit 223 and current sensing unit 224 reaches a protective condition, if so, performs step S60; If not, repeated execution of steps S10～S40.Above-mentioned protective condition refers to the margin of safety of the sensing result of those sensing cells; for example: if vehicle has tilted more than miter angle; control module 21 judges that vehicle is in heeling condition; therefore if the inclination angle of the sensing of acceleration sensing unit 221 surpasses 45 degree (being protective condition); perform step S60; if or the acceleration of the sensing of acceleration sensing unit 221 surpasses 4G (being protective condition), control module 21 judges that vehicle is clashed into, therefore perform step equally S60.
Step S60, control module 21 is controlled switch unit 12 and is switched to nonconducting state, to cut off the electric power output of battery unit 11, and controls alarm module 24 simultaneously and sends warning.If battery cell monitoring and protective device 20 comprise storage module 23, the sensing result of first each sensing cell of control module 21 meeting is stored in storage module 23, just controls switch unit 12 and switches to nonconducting state.
In sum; this battery cell monitoring and protection system 100 are by the various states of the sensing module 22 sensing battery modules 10 in battery cell monitoring and protective device 20; such as: humiture, voltage, electric current, battery capacity calculating, short-circuit detecting, whether in strong shock, inclination, overturning, fall, immersion etc.; and when there are abnormal conditions; the instant electric power output of cutting off battery module 10; make this battery cell monitoring and protection system 100 more trend towards safety, stable, reliable, therefore really can reach object of the present invention.
Should be understood that those skilled in the art can make various changes or modifications the present invention after having read above-mentioned instruction content of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.

Claims (9)

1. battery cell monitoring and a protective device, be used in conjunction with a battery module; It is characterized in that, this battery cell monitoring and protective device comprise:
A sensing module, comprise the humiture sensing cell that the acceleration sensing unit of an inclination angle in order to this battery module of sensing and acceleration change, temperature in order to this battery module of sensing and humidity change, and the gas sensing unit that changes of gas in order to this battery module of sensing wherein at least one; And
A control module, is electrically connected to this battery module and this sensing module, this control module according to this acceleration sensing unit, this humiture sensing cell and this gas sensing unit wherein the sensing result of at least one control this battery module and whether power.
2. battery cell monitoring as claimed in claim 1 and protective device; it is characterized in that: sensing module comprises this acceleration sensing unit, this humiture sensing cell and this gas sensing unit, and this control module according to this acceleration sensing unit, this humiture sensing cell and this gas sensing unit wherein the sensing result of at least one control this battery module and whether power.
3. battery cell monitoring as claimed in claim 1 or 2 and protective device; it is characterized in that: this battery cell monitoring and protective device also comprise an alarm module that is electrically connected to this control module; when this control module is controlled this battery module and stopped power supply, control this alarm module and send warning.
4. battery cell monitoring as claimed in claim 3 and protective device; it is characterized in that: this battery cell monitoring and protective device also comprise a storage module that is electrically connected to this control module; this control module is stored in the sensing result of this sensing module in this storage module before controlling this battery module and stopping power supply.
5. battery cell monitoring as claimed in claim 4 and protective device; it is characterized in that: the current sensing unit of curent change when this sensing module also comprises in order to this battery module energy storage of sensing or releases energy, this control module is controlled this battery module according to the sensing result of this acceleration sensing unit, this humiture sensing cell, this gas sensing unit and this current sensing unit and whether powered.
6. battery cell monitoring as claimed in claim 1 and protective device, is characterized in that: this acceleration sensing unit is a gyroscope sensor chip.
7. battery cell monitoring as claimed in claim 1 and protective device; it is characterized in that: this battery module comprises a battery unit and a switch unit that is electrically connected to this battery unit; this control module is electrically connected to this switch unit; and according to this acceleration sensing unit, this humiture sensing cell and this gas sensing unit wherein at least one sensing result control this switch unit in a conducting state that makes this battery unit electric discharge; and switch between a nonconducting state that this battery unit cannot be discharged, and then control this battery module and whether power.
8. a battery cell monitoring and protection system; It is characterized in that, this battery cell monitoring and protection system comprise:
A battery module; And
Battery cell monitoring and a protective device as described in any one in claim 1 to 7.
9. battery cell monitoring and a guard method, is applied to a battery cell monitoring and protective device, and this battery cell monitoring and protective device and a battery module are used in conjunction with, and it is characterized in that, this battery cell monitoring and guard method comprise following steps:
(A) the wherein variation of at least one of the inclination angle of this battery module of sensing, acceleration, humiture and gas;
(B) judge in this step (A), whether one of them sensing result reaches a protective condition, if so, perform step (C); And
(C) stop this battery module power supply.
CN201210256401.4A 2012-07-23 2012-07-23 Battery monitoring and protecting device and system and method thereof Pending CN103580073A (en)

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CN106585354A (en) * 2016-12-23 2017-04-26 苏州精控能源科技有限公司 Bump processing apparatus and method of electric automobile
CN109741562A (en) * 2017-10-31 2019-05-10 上海申龙客车有限公司 A kind of power battery cabin fire detection automatic alarm system
CN109980745A (en) * 2019-04-17 2019-07-05 上海钧正网络科技有限公司 A kind of battery and battery check device
CN110085313A (en) * 2019-04-08 2019-08-02 皮敏 A kind of Database Systems based on intelligent Chinese medicine robot
CN110646740A (en) * 2018-06-27 2020-01-03 东莞新能德科技有限公司 Monitoring method and monitoring device for battery pack
CN111381166A (en) * 2018-12-29 2020-07-07 北京骑胜科技有限公司 Method and system for monitoring battery state
US10873069B2 (en) 2016-02-25 2020-12-22 Byd Company Limited Single cell battery, battery module, power battery, and electric vehicle
CN113533990A (en) * 2021-07-09 2021-10-22 东莞新能安科技有限公司 Battery, battery posture detection method and power utilization device

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US10873069B2 (en) 2016-02-25 2020-12-22 Byd Company Limited Single cell battery, battery module, power battery, and electric vehicle
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CN113533990A (en) * 2021-07-09 2021-10-22 东莞新能安科技有限公司 Battery, battery posture detection method and power utilization device

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Application publication date: 20140212