CN104037878B - Accumulator battery and protective separation device thereof - Google Patents
Accumulator battery and protective separation device thereof Download PDFInfo
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- CN104037878B CN104037878B CN201410266920.8A CN201410266920A CN104037878B CN 104037878 B CN104037878 B CN 104037878B CN 201410266920 A CN201410266920 A CN 201410266920A CN 104037878 B CN104037878 B CN 104037878B
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- 230000001681 protective effect Effects 0.000 title claims abstract description 29
- 238000000926 separation method Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 13
- 238000002955 isolation Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 239000000178 monomer Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- IAIWVQXQOWNYOU-FPYGCLRLSA-N nitrofural Chemical compound NC(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 IAIWVQXQOWNYOU-FPYGCLRLSA-N 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The present invention provides a kind of accumulator battery and protective separation device thereof, accumulator battery protective separation device includes MCU, positive switch group, negative switch group, critesistor and temperature-detecting device, positive switch group and negative switch group all include multiple switch, critesistor is connected with each single battery, on the one hand accumulator battery protective separation device of the present invention is prevented from current break in circuit, avoid the excessive device burnt out in circuit of electric current in circuit, on the other hand, when certain single battery occurs abnormal, can stop accessing abnormal single battery, the abnormal single battery of isolation, and choose suitable accumulator battery and continue as load supplying, guarantee to load and work within a certain period of time.
Description
Technical field
The present invention relates to battery technology field, particularly relate to accumulator battery and protective separation device thereof.
Background technology
The non-renewable resources such as oil, natural gas will occur shortage in future, and this is inevitably loss.
Meanwhile, the use of oil and gas can produce environmental pollution, results in greater loss.Therefore, many people
Attempt with natural powers such as solar energy, wind-force, waterpower, and use clean free of contamination electric energy as replacing
For the energy.Therefore, electric vehicle day by day emerges, but technical challenge is the most following.For with
Past motor, to promote vehicle to run smoothly, needs to rely on a large amount of electric energy and drives；Therefore, car is promoted
Required set of cells, often by hundreds of the most thousands of battery, is one another in series and becomes array with in parallel,
Be one another in series by substantial amounts of battery and improve voltage, increased electric current by being connected in parallel to each other, such framework and
Become, form the set of cells of extremely complex string-structure.But, battery itself has service life, is counting
In the array of hundred/thousand battery, wherein a battery is damaged and is caused short circuit, short circuit electricity
Resistance can be less than other loops, and the electric current of all battery connected in parallel is by flowing back to the branch road of short circuit, according to mesh
The structure of front lithium battery group, easily causes burning, even explodes, and had a strong impact on electric vehicle can
By property and safety.Therefore, how when percentage of batteries core goes wrong, it is ensured that the safety of integral battery door with
Reliability, improves the safety coefficient of set of cells, and the reliability and security for electric vehicle is the heaviest
Want.
In order to solve the problems referred to above, the conventional method used at present is to add a fuse, work as electricity
During the short circuit of pond, a large amount of electric currents can make electric fuse take the lead in overheated fusing, ensures that whole set of cells is unlikely to impaired.
But, it is connected in parallel to each other place owing to its electric fuse is all positioned at battery, when a certain battery damages short circuit, is only capable of
It is departed from adjacent batteries in parallel connection core, on the contrary, the series-connected cell core being positioned at upstream and downstream the most persistently will
Electric current pours into and damages battery.Cross over upstream and downstream totally three battery damaging battery, positive and negative two ends
Between there will be only the voltage difference of two battery, in comparison, remaining adjacent parallel connection person, every three electricity
Between the two ends of Chi Xin, all there is the voltage difference of three battery.Therefore, though this battery with a left side
Right battery departs from, but remaining series-connected cell of left and right still will transmit through the upstream and downstream damaging battery, continues
Force to pour into this string battery by big electric current, two battery of its upstream with downstream are submitted an expense account in the lump, until
Till this string battery is scrapped totally.
Visible existing solution accumulator battery protective separation apparatus/method can not protect accumulator, so comprehensively
Have a strong impact on and utilize accumulator normally to work and safety as the equipment of the energy.
Summary of the invention
Based on this, it is necessary to accumulator cannot be protected for existing accumulator battery protective separation device comprehensively,
Guarantee the problem that electric power storage normally works, it is provided that a kind of accumulator battery protection that can comprehensively protect accumulator every
From device.
A kind of accumulator battery protective separation device, including MCU, positive switch group, negative switch group, temperature-sensitive
Resistance and temperature-detecting device, described switch includes controlling end, the first end and the second end；
The control end of described positive switch group breaker in middle is connected with described MCU, described positive switch group breaker in middle
The first end be connected with the positive pole of single battery in accumulator battery to be protected respectively, in described positive switch group
Second end of switch connects external equipment one end, the control end of described negative switch group breaker in middle and described MCU
Connect, the first end of described negative switch group breaker in middle respectively with single battery in accumulator battery to be protected
Negative pole connects, and the second end of described negative switch group breaker in middle is connected with the other end of external equipment, described heat
Quick resistance is connected with single battery in accumulator battery to be protected respectively, described temperature-detecting device respectively with institute
The accumulator and the described MCU that state accumulator battery to be protected connect；
The temperature of described temperature-detecting device detection electric power storage monomer, when the temperature of certain single battery exceedes pre-
If during temperature threshold values, send heat alarm and open to described MCU, the described MCU described positive pole of control
Each switch in negative switch group described in Guan Zuhe, stops accessing this single battery, and measures this storage of connection
The magnitude of voltage of battery cell both sides Part I accumulator battery and the magnitude of voltage of Part II accumulator battery, comparison
The magnitude of voltage of described Part I accumulator battery and the magnitude of voltage of described Part II accumulator battery, choose access
The accumulator battery part that magnitude of voltage is bigger.
A kind of accumulator battery, including interconnective accumulator battery body and accumulator battery described above protect every
From device, wherein, described battery pack body includes multiple interconnective single battery.
Accumulator battery protective separation device of the present invention, including MCU, positive switch group, negative switch group, warm
Quick resistance and temperature-detecting device, positive switch group and negative switch group all include multiple switch, heat
Quick resistance is connected with each single battery, and temperature-detecting device detects accumulator in accumulator battery to be protected
Temperature, when the temperature having single battery exceedes preset temperature threshold value (single battery occur abnormal),
On the one hand, temperature-detecting device sends heat alarm to MCU, MCU control positive switch group with negative
The Guan Bi of pole switches set breaker in middle, off-state, to stop accessing this single battery, measure this accumulator
The accumulator battery voltage value of two parts in the monomer left and right sides, the part choosing wherein magnitude of voltage bigger connects again
Enter circuit, provide the energy for load, on the other hand, owing to each single battery is all in series with critesistor,
When single battery occurs abnormal, during temperature jump, the resistance value of critesistor is pole along with the rising of temperature
Degree raises, thus the electric current in suppression circuit becomes suddenly big, protects whole circuit.Shown in sum up, this
Invention accumulator battery protective separation device, is on the one hand prevented from current break in circuit, it is to avoid electricity in circuit
Flow through the device burning out greatly in circuit, on the other hand, when certain single battery occurs abnormal, it is possible to stop
Only access abnormal accumulator, the abnormal accumulator of isolation, and choose suitable accumulator battery and continue as load supplying,
Guarantee to load and work within a certain period of time.
Accompanying drawing explanation
Fig. 1 is the structural representation of accumulator battery first embodiment of protective separation device of the present invention；
Fig. 2 is the structural representation of accumulator battery second embodiment of protective separation device of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below according to accompanying drawing and reality
Execute example, the present invention is further elaborated.Should be appreciated that described herein being only embodied as
In order to explain the present invention, do not limit the present invention.
As it is shown in figure 1, a kind of accumulator battery protective separation device, including MCU100, positive switch group 200,
Negative switch group 300, critesistor 400 and temperature-detecting device 500, described positive switch group 200 He
Described negative switch group 300 all includes that multiple switch, described switch include controlling end, the first end and the second end；
The control end of described positive switch group 200 breaker in middle is connected with described MCU100, described positive switch
The first end organizing 200 breaker in middle is connected with the positive pole of single battery in accumulator battery to be protected respectively, described
Second end of positive switch group 200 breaker in middle connects external equipment one end and connects, described negative switch group 300
The control end of breaker in middle is connected with described MCU100, and the first end of described negative switch group 300 breaker in middle divides
It is not connected with the negative pole of single battery in accumulator battery to be protected, described negative switch group 300 breaker in middle
Second end is connected with the other end of external equipment, described critesistor 400 respectively with in accumulator battery to be protected
Single battery is connected, described temperature-detecting device 500 respectively with the accumulator of described accumulator battery to be protected
And described MCU100 connects；
Described temperature-detecting device 500 detects the temperature of electric power storage monomer, when the temperature of certain single battery surpasses
When crossing preset temperature threshold value, send heat alarm and control to described MCU100, described MCU100
Each switch in described positive switch group 200 and described negative switch group 300, stops accessing this accumulator list
Body, and measure magnitude of voltage and the Part II electric power storage connecting this single battery both sides Part I accumulator battery
The magnitude of voltage of pond group, the magnitude of voltage of Part I accumulator battery described in comparison and described Part II accumulator battery
Magnitude of voltage, choose and access the bigger accumulator battery part of magnitude of voltage.
Accumulator battery protective separation device of the present invention, including MCU, positive switch group, negative switch group, warm
Quick resistance and temperature-detecting device, positive switch group and negative switch group all include multiple switch, heat
Quick resistance is connected with each single battery, and temperature-detecting device detects accumulator in accumulator battery to be protected
Temperature, when the temperature having single battery exceedes preset temperature threshold value (single battery occur abnormal),
On the one hand, temperature-detecting device sends heat alarm to MCU, MCU control positive switch group with negative
The Guan Bi of pole switches set breaker in middle, off-state, to stop accessing this single battery, measure this accumulator
The accumulator battery voltage value of two parts in the monomer left and right sides, the part choosing wherein magnitude of voltage bigger connects again
Enter circuit, provide the energy for load, on the other hand, owing to each single battery is all in series with critesistor,
When single battery occurs abnormal, during temperature jump, the resistance value of critesistor is pole along with the rising of temperature
Degree raises, thus the electric current in suppression circuit becomes suddenly big, protects whole circuit.Shown in sum up, this
Invention accumulator battery protective separation device, is on the one hand prevented from current break in circuit, it is to avoid electricity in circuit
Flow through the device burning out greatly in circuit, on the other hand, when certain single battery occurs abnormal, it is possible to stop
Only access abnormal single battery, the abnormal accumulator of isolation, and choose suitable accumulator battery and continue as load
Power supply, it is ensured that load works within a certain period of time.
In order to be further explained in detail the technical scheme of accumulator battery protective separation device of the present invention and bring
Beneficial effect, below in conjunction with Fig. 2 and use an example to illustrate.
As in figure 2 it is shown, accumulator battery to be protected includes that 1-15 single battery, positive switch group are provided with
No. A1-A15 switch, is provided with No. B1-B15 switch in negative switch group, 1-15 single battery is respectively
It is in series with critesistor.It is assumed that No. 2 accumulator breaks down, temperature-detecting device detects No. 2 storages
Battery temperature exceedes preset temperature threshold value, then send alarm signal to MCU, MCU control A1, A2,
B1, B2 switch off, and isolate No. 2 accumulator, the first voltage of No. 1 accumulator of Guan Bi A1 and B1 detection,
Disconnect A1 and B1, the voltage of Guan Bi A3 and B15 detection 3-15 accumulator battery, it is judged that No. 2 electric power storages again
Group both sides, pond accumulator battery (No. 1 accumulator and 3-15 accumulator battery) voltage swing, chooses wherein voltage
It is worth bigger part, it is clear that for Zheng Chang, 3-15 accumulator battery voltage value is relatively big, then Guan Bi A3 and B15
It is that external loading is powered by 3-15 accumulator, the most normally works to guarantee to load.When No. 1
When accumulator breaks down, temperature-detecting device, detect No. 1 battery temp and exceed preset temperature threshold value,
Temperature-detecting device sends alarm signal and controls to disconnect A1 and B1 to MCU, MCU, owing to No. 1 is the
One accumulator, side is not access accumulator so the magnitude of voltage of its side is 0, opposite side accumulator battery
Including 2-15 accumulator, it is naturally larger than 0, then selects to access 2-15 accumulator, for load supplying, close
Combination switch A2 and B15 is that external loading is powered by 2-15 accumulator, to guarantee to load within a certain period of time
Normal work.Corresponding with No. 1 accumulator also have No. 15 accumulator, and its principle is similar, does not repeats at this.
As in figure 2 it is shown, wherein in an embodiment, accumulator battery protective separation device of the present invention also includes
Charge-discharge controller 600, one end of described charge-discharge controller 600 is with described positive switch group 200 even
Connecing, the other end of described charge-discharge controller 600 is connected with external equipment, described charge-discharge controller
The control end of 600 is connected with described MCU100.
Charge-discharge controller can control the discharge and recharge of accumulator, when accumulator battery external equipment is for load,
Charge-discharge controller, controls accumulator battery electric discharge, for loading the deduction energy, when accumulator battery external equipment
For power supply, and when accumulator battery voltage is relatively low, control battery charging, supplement the electric energy of accumulator battery.
As in figure 2 it is shown, wherein in an embodiment, described charge-discharge controller includes the first switching tube
620, second switch pipe the 640, first diode 660 and the second diode 680, described first switching tube 620
Outfan be connected with external equipment, one end controlling end and described MCU of described first switching tube 620 is even
Connecing, the input of described first switching tube 620 is connected with the input of described second switch pipe 640, described
The end that controls of second switch pipe 640 is connected with the other end of described MCU, described second switch pipe 640 defeated
Go out end to be connected with described positive switch group, the positive pole of described first diode 660 and described first switching tube 620
Outfan connect, the input of the negative pole of described first diode 660 and described first switching tube 620 is even
Connecing, the negative pole of described second diode 680 is connected with the input of described second switch pipe 640, and described
The positive pole of two diodes 680 is connected with the outfan of described second switch pipe 640.
In the present embodiment, charge-discharge controller includes first, second switching tube and first, second 2
Pole is managed, and switching tube and diode are all stable performance, component with low cost, charge-discharge controller
On the premise of being able to ensure that stable performance including switching tube and diode, reduce manufacturing cost to greatest extent, have
Benefit whole accumulator battery protective separation device to promote and application.
As in figure 2 it is shown, wherein in an embodiment, described accumulator battery protective separation device also includes surveying
Amount resistance 700, one end of described measurement resistance respectively with one end and the described MCU of described negative switch group
One end connect, the other end of described measurement resistance is respectively with the other end of ancillary equipment and described MCU even
Connect.
Measure resistance and detect the current value in whole circuit for MCU.
Wherein in an embodiment, described accumulator battery protective separation device also includes display device, described
Display device is connected with described MCU.
Display device can show positive pole, the Guan Bi of negative switch group breaker in middle, disconnection and each storage
The parameters such as the temperature of battery cell, voltage, in order to user has a clear understanding of current accumulator battery protective separation device
And the state of accumulator.
Wherein in an embodiment, described display device is LCDs.
LCDs is a kind of display device of good performance.
A kind of accumulator battery, including interconnective accumulator battery body and accumulator battery described above protect every
From device, wherein, described battery pack body includes multiple interconnective single battery.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (7)
1. an accumulator battery protective separation device, it is characterised in that include MCU, positive switch group,
Negative switch group, critesistor and temperature-detecting device, described positive switch group and described negative switch group
All include that multiple switch, described switch include controlling end, the first end and the second end；
The control end of described positive switch group breaker in middle is connected with described MCU, described positive switch group breaker in middle
The first end be connected with the positive pole of single battery in accumulator battery to be protected respectively, in described positive switch group
Second end of switch connects external equipment one end, the control end of described negative switch group breaker in middle and described MCU
Connect, the first end of described negative switch group breaker in middle respectively with single battery in accumulator battery to be protected
Negative pole connects, and the second end of described negative switch group breaker in middle is connected with the other end of external equipment, described heat
Quick resistance is connected with single battery in accumulator battery to be protected respectively, described temperature-detecting device respectively with institute
The single battery and the described MCU that state accumulator battery to be protected connect；
The temperature of described temperature-detecting device detection single battery, when the temperature of certain single battery exceedes
During preset temperature threshold value, send heat alarm and control described positive pole to described MCU, described MCU
In switches set and described negative switch group each switch, stop access this single battery, and measure connection should
The magnitude of voltage of single battery both sides Part I accumulator battery and the magnitude of voltage of Part II accumulator battery, than
Magnitude of voltage and the magnitude of voltage of described Part II accumulator battery to described Part I accumulator battery, chooses and connects
Enter the accumulator battery part that magnitude of voltage is bigger.
Accumulator battery protective separation device the most according to claim 1, it is characterised in that also include filling
Discharge control device, one end of described charge-discharge controller is connected with described positive switch group, described charge and discharge
The other end of controller for electric consumption is connected with external equipment, and the control end of described charge-discharge controller is with described
MCU connects.
Accumulator battery protective separation device the most according to claim 2, it is characterised in that described charge and discharge
Controller for electric consumption includes the first switching tube, second switch pipe, the first diode and the second diode, described
The outfan of one switching tube is connected with external equipment, described first switching tube control the of end and described MCU
One end connects, and the input of described first switching tube is connected with the input of described second switch pipe, and described the
The end that controls of two switching tubes is connected with second end of described MCU, and the outfan of described second switch pipe is with described
Positive switch group connects, and the positive pole of described first diode is connected with the outfan of described first switching tube, institute
The input of the negative pole and described first switching tube of stating the first diode is connected, the negative pole of described second diode
It is connected with the input of described second switch pipe, the positive pole of described second diode and described second switch pipe
Outfan connects.
4. according to the accumulator battery protective separation device described in claim 1 or 2 or 3, it is characterised in that
Also include measuring resistance, one end of described measurement resistance respectively with one end of described negative switch group and described
The three-terminal link of MCU, the other end of described measurement resistance respectively with external equipment and described MCU
4th end connects.
5. according to the accumulator battery protective separation device described in claim 1 or 2 or 3, it is characterised in that
Also include that display device, described display device are connected with described MCU.
Accumulator battery protective separation device the most according to claim 5, it is characterised in that described display
Device is LCDs.
7. an accumulator battery, it is characterised in that include interconnective accumulator battery body and as right is wanted
Ask the accumulator battery protective separation device described in any one in 1 to 6, wherein, described accumulator battery body
Including multiple interconnective single batteries.
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| CN201410266920.8A CN104037878B (en) | 2014-06-16 | 2014-06-16 | Accumulator battery and protective separation device thereof |
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| CN201410266920.8A CN104037878B (en) | 2014-06-16 | 2014-06-16 | Accumulator battery and protective separation device thereof |
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| CN104037878A CN104037878A (en) | 2014-09-10 |
| CN104037878B true CN104037878B (en) | 2016-09-21 |
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| US10379166B2 (en) * | 2014-10-02 | 2019-08-13 | LiiON, LLC | Cabinet and battery management and monitoring system for use with uninterruptible power supplies |
| EP3905479A1 (en) | 2016-11-14 | 2021-11-03 | SZ DJI Technology Co., Ltd. | Multi-battery system and management thereof |
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| JP5525743B2 (en) * | 2009-03-30 | 2014-06-18 | 株式会社日本総合研究所 | Battery control device, battery control method, and vehicle |
| CN102865942B (en) * | 2011-07-04 | 2014-07-16 | 杭州市电力局 | Temperature testing method, device and system of power cells |
| CN103107520B (en) * | 2013-01-31 | 2015-09-02 | 深圳华粤宝电池有限公司 | Lithium ion battery overheat protector system and method |
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Address after: Yuelu District City, Hunan province 410000 Changsha Wenxuan Road No. 27 enterprises in the Park Plaza C1 building 501 Applicant after: HUNAN SUN HI ENERGY TECHNOLOGY Co.,Ltd. Address before: Yuelu District City, Hunan province 410006 Changsha Wenxuan Road No. 27 enterprises in the Park Plaza C1 building 501 Applicant before: HUNAN SUN HI ENERGY SAVING TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20231228 Address after: A1903, Building 14, Zhonghaixin Innovation Industrial City, No. 12 Ganli 6th Road, Gankeng Community, Jihua Street, Longgang District, Shenzhen City, Guangdong Province, 518000 (one photo multi site enterprise) Patentee after: SHENZHEN ORICO TECHNOLOGIES Co.,Ltd. Address before: 410000 room 1101, building 8, Xincheng Science Park, No. 588, Yuelu West Avenue, high tech Development Zone, Changsha, Hunan Patentee before: Hunan rongchuang Technology Co.,Ltd. |
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