CN109444761A - A kind of appraisal procedure and detection device of low cost secondary cell health status - Google Patents
A kind of appraisal procedure and detection device of low cost secondary cell health status Download PDFInfo
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- CN109444761A CN109444761A CN201811126690.XA CN201811126690A CN109444761A CN 109444761 A CN109444761 A CN 109444761A CN 201811126690 A CN201811126690 A CN 201811126690A CN 109444761 A CN109444761 A CN 109444761A
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- 230000003862 health status Effects 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title abstract description 11
- 238000005070 sampling Methods 0.000 claims abstract description 48
- 238000012545 processing Methods 0.000 claims abstract description 26
- 230000036541 health Effects 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims description 21
- 101100190527 Arabidopsis thaliana PIN5 gene Proteins 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 5
- 101100190528 Arabidopsis thaliana PIN6 gene Proteins 0.000 claims description 3
- 101100190529 Arabidopsis thaliana PIN7 gene Proteins 0.000 claims description 3
- 101100190530 Arabidopsis thaliana PIN8 gene Proteins 0.000 claims description 3
- 101100190532 Oryza sativa subsp. japonica PIN9 gene Proteins 0.000 claims description 3
- 101150087393 PIN3 gene Proteins 0.000 claims description 3
- 101150011456 PIN8 gene Proteins 0.000 claims description 3
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 claims description 3
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052744 lithium Inorganic materials 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
The invention discloses battery technology fields, and in particular to a kind of appraisal procedure and detection device of low cost secondary cell health status；The battery information that the present invention is acquired voltage sample module V, current sampling module C, temperature sampling module T by message processing module S is compared with the normal cell information under the health status stored in battery information storage module B carries out analysis, entire battery state-of-health is assessed according to the characteristic of serondary lithium battery inherently, the safe handling for ensuring battery reduces or prevents the safety accident of battery；Using single-chip microcontroller as message processing module, the every economize on electricity cell voltage of battery pack is acquired by inexpensive resistance and switching tube, by resistance and operational amplifier come electric current in sampling battery group use process, by NTC come sample temperature information and battery pack time of repose parameter, cell health state is shown by LED light, it can avoid greatly reducing cost using expensive battery pack front end analogue sampling A/D chip.
Description
Technical field
The present invention relates to battery technology fields, and in particular to a kind of appraisal procedure of low cost secondary cell health status and
Detection device.
Background technique
With the development of science and technology and the improvement of people's living standards, various mobile devices and cordless tool be also increasingly
It is more, it is also more and more using secondary cell, especially with lithium battery more more to come.And lithium battery has an intrinsic characteristic just
Be that cannot overcharge and over-discharge, once overcharging and over-discharge, will be possible to safety hazards occur, gently then only lose, it is heavy then can
It can cause life security accident.This namely often reports that lithium battery safety accident, such as mobile power source are fired on airport in recent years
It burns, certain battery burns in Shenzhen Metro, and more serious is exactly Xiamen electric bus combustion explosion etc..These are all secondary lithium electricity
Some safety accidents that pond occurs in use.Also it is given a lesson to deeply to people.This just needs correctly to evaluate secondary lithium
Cell health state reminds and locks in time not using battery apparatus to people.And have in large scale system to each at present
Sample lithium battery health evaluation system, this system are also more expensive, general mini-system and mobile device and cordless tool
All make can not afford.And these mini-systems and mobile device and cordless tool urgent need develop a kind of inexpensive serondary lithium battery health
Assessment system.Based on this, the present invention devises the appraisal procedure and detection device of a kind of inexpensive secondary cell health status, with
It solves the above problems.
Summary of the invention
The technical issues of solution
For disadvantages mentioned above present in the prior art, the present invention provides a kind of inexpensive secondary cell health status
Appraisal procedure and detection device, to solve asking for the inexpensive serondary lithium battery health evaluation system of shortage proposed in background technique
Topic.
Technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of low cost secondary cell health status detection device, including message processing module S, battery information storage module
B, current sampling module C, voltage sample module V, temperature sampling module T and human-computer interface module R；The message processing module S
The battery information storage module B, the current sampling module C, the voltage sample module V, the temperature is electrically connected to adopt
The egf block T and human-computer interface module R；
Preferably, the message processing module S uses single-chip microcontroller U1--PIC16F1823, the battery information storage module
B uses U3--E2PROM--AT24C04；The current sampling module C is by low consumed power operational amplifier U2--TP2121 and precision
Sampling resistor RS1 composition；Three voltage sample module V are by metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3, triode Q1, three poles
Pipe Q2, triode Q3, resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance RC3, resistance RC3A composition；The temperature
Sampling module T is NTC temperature sensor；The human-computer interface module R is LED light；
The PIN5 foot of single-chip microcontroller U1--PIC16F1823 exports high level, opens triode Q1, triode Q2, triode Q3
Metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3 are opened, by divider resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance
RC3, resistance RC3A obtain voltage, carry out sampling by the PIN3 of single-chip microcontroller U1--PIC16F1823, PIN6, PIN7 and respectively obtain
The voltage of battery B1, B2, B3；By sampling resistor RS1 and operational amplifier U2--TP2121, current signal at this time is converted
Current information at this time is sampled at voltage signal, then by the PIN9 of single-chip microcontroller U1--PIC16F1823；Pass through single-chip microcontroller simultaneously
The battery pack temperature information of the NTC temperature sensor sampling of the PIN2 connection of U1--PIC16F1823 at this time；Single-chip microcontroller U1--
PIC16F1823 will sample information of voltage corresponding to obtained current information and this temperature and pass through single-chip microcontroller U1--
The PIN12 of PIC16F1823, PIN13 read battery current information, the temperature being stored in memory U3--E2PROM--AT24C04
It spends corresponding information of voltage and carries out analysis comparison；Under health status, single-chip microcontroller U1--PIC16F1823 control LED light is normally shown
Show, if battery occurs abnormal, the low and high level of the PIN8 output certain frequency of single-chip microcontroller U1--PIC16F1823 lights LED
Lamp makes its flashing, while charge and discharge the metal-oxide-semiconductor MF1 and MC1 of battery pack are turned off by PIN10 and PIN11, and user can not make again
With；
A kind of a kind of inexpensive secondary cell health state evaluation method based on the detection device, it is characterised in that:
Message processing module S photos and sending messages give voltage sample module V, open voltage sample channel, start the voltage for sampling every string battery, electricity
Press sampling module V that the every string cell voltage sampled is sent to message processing module S；Meanwhile current sampling module C samples this
When battery operating current, temperature sampling module T acquisition battery core temperature at this time；Message processing module S is electric by the battery of acquisition
Normal cell information under the health status press, stored in battery current and battery core temperature information and battery information storage module B
Analysis comparison is carried out, if there is relatively large deviation, then it is assumed that cell health state is abnormal；Message processing module S passes through man-machine interface
Export the health and fitness information of battery.
Beneficial effect
Compared with prior art, the beneficial effects of the present invention are: the present invention passes through message processing module S for voltage sample mould
The health stored in the battery information and battery information storage module B that block V, current sampling module C, temperature sampling module T are acquired
Normal cell information under state carries out analysis comparison, assesses entire battery pack according to the characteristic of serondary lithium battery inherently
Health status, it is ensured that the safe handling of battery reduces or prevent the safety accident of battery；
Using single-chip microcontroller as message processing module, the every batteries of battery pack are acquired by inexpensive resistance and switching tube
Voltage, by resistance and operational amplifier come electric current in sampling battery group use process, by NTC come sample temperature information and
Battery pack time of repose parameter shows cell health state by LED light, can avoid adopting using expensive battery pack front end analogue
Sample chip, greatly reduces cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is structure of the detecting device schematic diagram of the present invention.
Fig. 2 is detection device physical circuit figure of the present invention.
Fig. 3 is present procedure flow chart.
In figure: message processing module S1, battery information storage module B2, current sampling module C3, voltage sample module V4,
Temperature sampling module T5, human-computer interface module R6
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of technical solution: a kind of inspection of low cost secondary cell health status
Device is surveyed, including including message processing module S1, battery information storage module B2, current sampling module C3, voltage sample module
V4, temperature sampling module T5 and human-computer interface module R6；Message processing module S1 is electrically connected battery information storage module B2, electricity
Flow sampling module C3, voltage sample module V4, temperature sampling module T5 and human-computer interface module R6；
Wherein, message processing module S1 uses single-chip microcontroller U1--PIC16F1823, battery information storage module B2 to use
U3--E2PROM--AT24C04；Current sampling module C3 is by low consumed power operational amplifier U2--TP2121 and accurate sampling resistor
RS1 composition；Three voltage sample module V4 are by metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3, triode Q1, triode Q2, triode
Q3, resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance RC3, resistance RC3A composition；Temperature sampling module T5 is NTC
Temperature sensor；Human-computer interface module R6 is LED light；
The PIN5 foot of single-chip microcontroller U1--PIC16F1823 exports high level, opens triode Q1, triode Q2, triode Q3
Metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3 are opened, by divider resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance
RC3, resistance RC3A obtain voltage, carry out sampling by the PIN3 of single-chip microcontroller U1--PIC16F1823, PIN6, PIN7 and respectively obtain
The voltage of battery B1, B2, B3；By sampling resistor RS1 and operational amplifier U2--TP2121, current signal at this time is converted
Current information at this time is sampled at voltage signal, then by the PIN9 of single-chip microcontroller U1--PIC16F1823；Pass through single-chip microcontroller simultaneously
The battery pack temperature information of the NTC temperature sensor sampling of the PIN2 connection of U1--PIC16F1823 at this time；Single-chip microcontroller U1--
PIC16F1823 will sample information of voltage corresponding to obtained current information and this temperature and pass through single-chip microcontroller U1--
The PIN12 of PIC16F1823, PIN13 read battery current information, the temperature being stored in memory U3--E2PROM--AT24C04
It spends corresponding information of voltage and carries out analysis comparison；Under health status, single-chip microcontroller U1--PIC16F1823 control LED light is normally shown
Show, if battery occurs abnormal, the low and high level of the PIN8 output certain frequency of single-chip microcontroller U1--PIC16F1823 lights LED
Lamp makes its flashing, while charge and discharge the metal-oxide-semiconductor MF1 and MC1 of battery pack are turned off by PIN10 and PIN11, does not allow user to make again
With.
A kind of a kind of inexpensive secondary cell health state evaluation method based on above-mentioned detection device, it is characterised in that:
Message processing module S photos and sending messages give voltage sample module V, open voltage sample channel, start the voltage for sampling every string battery, electricity
Press sampling module V that the every string cell voltage sampled is sent to message processing module S；Meanwhile current sampling module C samples this
When battery operating current, temperature sampling module T acquisition battery core temperature at this time；Message processing module S is electric by the battery of acquisition
Normal cell information under the health status press, stored in battery current and battery core temperature information and battery information storage module B
Analysis comparison is carried out, if there is relatively large deviation, then it is assumed that cell health state is abnormal；Message processing module S passes through man-machine interface
The health and fitness information of module R output battery.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (3)
1. a kind of low cost secondary cell health status detection device, it is characterised in that: including message processing module S (1), battery
Information storage module B (2), current sampling module C (3), voltage sample module V (4), temperature sampling module T (5) and man-machine interface
Module R (6)；The message processing module S (1) is electrically connected the battery information storage module B (2), the current sample mould
Block C (3), the voltage sample module V (4), the temperature sampling module T (5) and the human-computer interface module R (6).
2. a kind of detection device of inexpensive secondary cell health status according to claim 1, it is characterised in that: described
Message processing module S (1) uses single-chip microcontroller U1--PIC16F1823, and the battery information storage module B (2) uses U3--
E2PROM--AT24C04；The current sampling module C (3) is by low consumed power operational amplifier U2--TP2121 and accurate sampling electricity
Hinder RS1 composition；Three voltage sample module V (4) are by metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3, triode Q1, triode
Q2, triode Q3, resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance RC3, resistance RC3A composition；The temperature is adopted
Egf block T (5) is NTC temperature sensor；The human-computer interface module R (6) is LED light；
The PIN5 foot of single-chip microcontroller U1--PIC16F1823 exports high level, opens triode Q1, triode Q2, triode Q3 to beat
Open metal-oxide-semiconductor M1, metal-oxide-semiconductor M2, metal-oxide-semiconductor M3, by divider resistance RC1, resistance RC1A, resistance RC2, resistance RC2A, resistance RC3,
Resistance RC3A obtains voltage, carries out sampling by the PIN3 of single-chip microcontroller U1--PIC16F1823, PIN6, PIN7 and respectively obtains battery
The voltage of B1, B2, B3；By sampling resistor RS1 and operational amplifier U2--TP2121, current signal at this time is converted into electricity
Signal is pressed, then current information at this time is sampled by the PIN9 of single-chip microcontroller U1--PIC16F1823；Pass through single-chip microcontroller U1-- simultaneously
The battery pack temperature information of the NTC temperature sensor sampling of the PIN2 connection of PIC16F1823 at this time；Single-chip microcontroller U1--
PIC16F1823 will sample information of voltage corresponding to obtained current information and this temperature and pass through single-chip microcontroller U1--
The PIN12 of PIC16F1823, PIN13 read battery current information, the temperature being stored in memory U3--E2PROM--AT24C04
It spends corresponding information of voltage and carries out analysis comparison；Under health status, single-chip microcontroller U1--PIC16F1823 control LED light is normally shown
Show, if battery occurs abnormal, the low and high level of the PIN8 output certain frequency of single-chip microcontroller U1--PIC16F1823 lights LED
Lamp makes its flashing, while charge and discharge the metal-oxide-semiconductor MF1 and MC1 of battery pack are turned off by PIN10 and PIN11, and user can not make again
With.
3. a kind of based on a kind of a kind of low cost of the detection device of inexpensive secondary cell health status described in claim 1
Secondary cell health state evaluation method, it is characterised in that: message processing module S photos and sending messages give voltage sample module V, open electricity
Sampling channel is pressed, the voltage for sampling every string battery is started, the every string cell voltage sampled is sent to letter by voltage sample module V
Cease processing module S；Meanwhile current sampling module C samples the operating current of battery at this time, temperature sampling module T is acquired at this time
Battery core temperature；The cell voltage of acquisition, battery current and battery core temperature information and battery information are stored mould by message processing module S
Normal cell information under the health status stored in block B carries out analysis comparison, if there is relatively large deviation, then it is assumed that battery health
Abnormal state；Message processing module S exports the health and fitness information of battery by man-machine interface R.
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| CN201811126690.XA CN109444761A (en) | 2018-09-26 | 2018-09-26 | A kind of appraisal procedure and detection device of low cost secondary cell health status |
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| CN201811126690.XA CN109444761A (en) | 2018-09-26 | 2018-09-26 | A kind of appraisal procedure and detection device of low cost secondary cell health status |
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-
2018
- 2018-09-26 CN CN201811126690.XA patent/CN109444761A/en active Pending
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| US20140084867A1 (en) * | 2012-09-24 | 2014-03-27 | Kabushiki Kaisha Toshiba | Secondary battery device and battery capacity estimation system |
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