CN100373685C - Single level and lead acid accumulator embedded with current sampling resistor - Google Patents
Single level and lead acid accumulator embedded with current sampling resistor Download PDFInfo
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- CN100373685C CN100373685C CNB2005100373065A CN200510037306A CN100373685C CN 100373685 C CN100373685 C CN 100373685C CN B2005100373065 A CNB2005100373065 A CN B2005100373065A CN 200510037306 A CN200510037306 A CN 200510037306A CN 100373685 C CN100373685 C CN 100373685C
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- sampling resistor
- lead acid
- acid accumulator
- current sampling
- single level
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- 238000005070 sampling Methods 0.000 title claims abstract description 41
- 239000002253 acid Substances 0.000 title claims abstract description 36
- 238000005259 measurement Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000009954 braiding Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 229910000896 Manganin Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention relates to a monomer horizontal lead acid accumulator embedded with a current sampling resistor, which comprises a monomer horizontal lead acid accumulator. The present invention is characterized in that electrode output positions in the monomer horizontal lead acid accumulator are embedded with at least one current sampling resistor, and the current sampling resistor and the connecting end of electrodes are provided with outgoing lines which are exposed to the accumulator. The present invention has the advantages of scientific design and reasonable, ingenious, simple and compact structure. Load current that the charging current flows into the monomer horizontal lead acid accumulator or that discharging current flows into the monomer horizontal lead acid accumulator and voltage dropping data of all load current on the sampling resistor or voltage dropping data of parts of the load current on the sampling resistor are tested through the current sampling resistor embedded in the accumulator, and load current values can be obtained according to the calculation of conventional correction values.
Description
Technical field
What the present invention relates to is the single level and lead acid battery, especially a kind of single level and lead acid accumulator of embedded with current sampling resistor.
Background technology
Level and lead acid accumulator is present state-of-the-art lead acid accumulator, the structural principle of single level and lead acid accumulator is as shown in Figure 1: grid is a fexible conductor, it is by forming by the compound galvanized wire braiding of the Overmolded glass fibre of solid-state extrusion, the one end coating positive electrode active material of grid is a positive plate 1, other end coating negative electrode active material is a negative plate 2, just, negative plate 1,2 separate with barrier film 3 and to form bipolar plates 10, each bipolar plates 10 level is staggered stacks, fixing with pressure frame 4 up and down, each bipolar plates 10 is by the galvanized wire internal series-connection, each bipolar plates two ends all connects positive electrode bus-bar 7+ and negative electrode bus-bar 7-respectively by galvanized wire 11, positive electrode bus-bar 7+ and negative electrode bus-bar 7-are respectively equipped with positive terminal 5 and negative terminal 6, a large amount of galvanized wires conduction current in parallel, its CURRENT DISTRIBUTION is even.At present, level and lead acid accumulator has been widely used in electric automobile.
For electric automobile (electric vehicles calls EV in the following text) or hybrid vehicle (hybridelectric vehicles calls HEV in the following text), battery is its main or auxiliary power source, is the key components of EV or HEV.In order rationally to use battery, make full use of the energy in the battery, prolong the useful life of battery, EV or HEV must be equipped with voltameter.Its effect all is equipped with fuel level gauge as internal-combustion engines vehicle, and battery is carried out state-of-charge measuring and calculating (calling the SOC measuring and calculating in the following text), whether is full of electricity or emptying to judge battery.Different with the internal-combustion engines vehicle fuel level gauge is, is judging whether battery is full of or during emptying, does not resemble clear and accurate criterion the fuel level gauge.This is because the capacity of battery along with temperature, discharge-rate, periodic duty number of times change, overcharges and crosses to put all and can greatly damage battery performance, so the SOC of battery measuring and calculating is complicated and important more than fuel level gauge.From giving full play to the battery ability and improving two angles of cell safety reliably working performance, the correctness of SOC measuring and calculating and practical reliability are to realize the key link of battery-efficient management.
At present, be used for the electrokinetic cell SOC measuring and calculating of automobile, especially be in the dynamically measuring and calculating in real time when discharging and recharging operating mode, employing be ampere-hour (Ah) measurement Law, also be referred to as a meaning coulomb measurement Law.Its principle is to come the discharge capacity of accumulative total battery by current integration, and then realizes the SOC measuring and calculating.Yet, realize that the engineering measure of ampere-hour measurement Law is:, must collect the load voltage V parameter of battery at real time sample moment K
kLoad current parameter I with battery
kFor V
kIt is fairly simple to take a sample, directly from the battery positive and negative electrode V that takes out in parallel
kVoltage parameter; And for I
kSampling, the simplest method are the current sampling resistors of connecting in battery and load link circuit, by gathering the voltage drop of this sample resistance, just can converse I according to Ohm's law
kCurrent parameters.This current sampling mode principle is correct, and the current parameters that is collected has also reflected the electric current true value in the load circuit in real time.But the operating current of Vehicular dynamic battery is very big usually, and general motor-driven running current is tens amperes～more than 100 ampere.When vehicle launch, the electric motor starting electric current can be up to 200～300 amperes.Therefore, be connected on current sampling resistor in the load major loop and also will bear big electric current, bring following defective thus up to 200～300 amperes:
The installation of external impressed current sample resistance and use difficult: because current sampling resistor will bear 300 Ampere currents, must guarantee to connect the contact reliability of external impressed current sample resistance, as: connect main loop cabling with the above large scale fastening bolt of M8, nut, need in service carry out anti-vibration to be safeguarded, in case current sampling resistor forms loose contact because of reasons such as vibration or installations, can cause striking sparks or burning and open circuit, promptly can motor be stopped operating the interrupt load loop.This shows that existing main circuit current sampling mode exists because of current sampling resistor damages and causes SOC measuring and calculating failure, causes the voltameter fault, and then causes the major defect of motor stall.
Summary of the invention
The objective of the invention is deficiency,, provide a kind of single level and lead acid accumulator of embedded with current sampling resistor based on the peculiar design feature of level and lead acid accumulator at above-mentioned existence.This battery that is embedded with current sampling resistor helps that battery charge flows to or the discharge load current that flows out and the voltage-drop data of all or part of load current measure.
The single level and lead acid accumulator of embedded with current sampling resistor of the present invention comprises: the single level and lead acid accumulator body is characterized in that: the electrode output position of single level and lead acid accumulator inside embeds a current sampling resistor at least with series system; Current sampling resistor is connected between battery negative electrode bus-bar and the battery cathode terminal; Described current sampling resistor and electrode link are provided with the measurement lead-out wire that exposes to battery.It can realize the sampling of cell load current concentration.
The single level and lead acid accumulator design science of embedded with current sampling resistor of the present invention, compactness rational in infrastructure, ingenious, simple.By being embedded in the current sampling resistor in the battery, can record the voltage-drop data of load current on sample resistance that the single level and lead acid accumulator charging flows to or discharges and flow out under the battery charge work condition state.The data that record again routinely correction value can obtain load current value.It has the following advantages and effect:
1, the inner sample resistance that embeds of cell makes cell can realize the battery charge state measuring and calculating.On this basis, can promote and develop high value added products such as low cost, high-precision electrokinetic cell voltameter, battery intelligent management chip;
2, embedded sample resistance adopts cast welding technology to connect bolt, the fixedly connected reliability height of nut machinery of existing outer gown formula sample resistance;
3, the software self calibration of embedded sample resistance is lower than existing external hanging type sample resistance manufacturing and correcting mark devise a stratagem amount cost, can repeat repeatedly to calibrate.Existing sample resistance product can only disposablely be calibrated;
The concrete structure of the single level and lead acid accumulator of embedded with current sampling resistor of the present invention is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is a single level and lead acid accumulator structural principle schematic diagram;
Fig. 2 is the single level and lead acid accumulator structural principle schematic diagram of embedded with current sampling resistor;
Fig. 3 is the single level and lead acid accumulator SOC measuring and calculating schematic diagram of embedded with current sampling resistor.
Embodiment
Embodiment 1: a kind of single level and lead acid accumulator of realizing the embedded with current sampling resistor of cell load current concentration sampling.The single level and lead acid accumulator structure that present embodiment relates to is Chinese patent ZL02243794.0 disclosed " terminal structure of lead acid accumulator ", from Fig. 1 and Fig. 2 as seen, the single level and lead acid accumulator body is by the fexible conductor grid that forms by the compound galvanized wire braiding of the Overmolded glass fibre of solid-state extrusion, the one end coating positive electrode active material of grid is a positive plate 1, other end coating negative electrode active material is a negative plate 2, just, negative plate 1,2 separate with barrier film 3 and to form accurate bipolar plates 10, each bipolar plates 10 level is staggered stacks, galvanized wire 11 internal series-connections at each bipolar plates 10 two ends, fixing with pressure frame 4 up and down.Bipolar electrode 10 two ends are all by galvanized wire 11-1,11-2,11-3 ... 11-n is connected with negative electrode bus-bar 7-with the positive electrode bus-bar 7+ of positive terminal 5 and negative terminal 6 respectively; Described positive terminal 5 is the support 8+ of pure conducting function, and negative terminal 6 is for being embedded with the conducting bracket 8-of sample resistance, and conducting bracket 8-is by tool current sampling resistor R
SThe base 81 of function and the drum type crotch of pure conducting function 82 connect to form by cast welding; Described base 81 is made by the manganin material; Conducting bracket 8-tool dual-use function both can satisfy its conducting function, can satisfy the function of sensing lead electric current again.The base 81 of conducting bracket 8-is connected with negative electrode bus-bar 7-cast welding.Described negative electrode bus-bar 7-is provided with the measurement lead-out wire 9 that exposes to battery container.
Single level and lead acid accumulator SOC measuring and calculating principle such as Fig. 3 of this embedded with current sampling resistor, the positive electrode bus-bar 7+ of level and lead acid accumulator connects pure conducting bracket and is connected conducting bracket 8 with negative electrode bus-bar 7-by lead connection load Rz, connecting to go here and there on the lead has ammeter A, can obtain the loop current Io of horizon battery and load Rz by ammeter A; The measurement lead-out wire 9 of negative electrode bus-bar 7-is connected on the lead with the drum type crotch 82 of the continuous input conducting bracket 8 of negative electrode bus-bar 7-and voltmeter V is arranged, and can obtain the voltage drop V that sample resistance RS two ends load current flows through by voltmeter V
RS, use formula: I
1=V
1/ R
S1, I
1∝ I
0/ n adds that the corrected value correction just can derive the load current parameter value.
Above content is in conjunction with concrete preferred implementation, and to further describing that the present invention did, concrete enforcement of the present invention is not confined to these explanations.Without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (3)
1. the single level and lead acid accumulator of an embedded with current sampling resistor, comprising: the single level and lead acid accumulator body is characterized in that: the electrode output position of single level and lead acid accumulator body inside embeds a current sampling resistor at least with series system; Current sampling resistor is connected between battery negative electrode bus-bar and the battery cathode terminal; Described current sampling resistor and electrode link are provided with the measurement lead-out wire that exposes to battery.
2. according to the single level and lead acid accumulator of the described embedded with current sampling resistor of claim 1, it is characterized in that: described current sampling resistor R
SBe arranged on the conducting bracket (8-) of single level and lead acid accumulator.
3. according to the single level and lead acid accumulator of the described embedded with current sampling resistor of claim 2, it is characterized in that: conducting bracket (8-) is formed by connecting by the L type base (81) of tool current sampling resistor Rs function and drum type crotch (82) cast welding of pure conducting function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100373065A CN100373685C (en) | 2005-09-13 | 2005-09-13 | Single level and lead acid accumulator embedded with current sampling resistor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100373065A CN100373685C (en) | 2005-09-13 | 2005-09-13 | Single level and lead acid accumulator embedded with current sampling resistor |
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| Publication Number | Publication Date |
|---|---|
| CN1750316A CN1750316A (en) | 2006-03-22 |
| CN100373685C true CN100373685C (en) | 2008-03-05 |
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| CNB2005100373065A Expired - Fee Related CN100373685C (en) | 2005-09-13 | 2005-09-13 | Single level and lead acid accumulator embedded with current sampling resistor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5268393B2 (en) * | 2008-03-07 | 2013-08-21 | 三洋電機株式会社 | Battery pack |
| EP2571094B1 (en) * | 2011-09-14 | 2014-04-16 | V2 Plug-in Hybrid Vehicle Partnership Handelsbolag | Arrangement for current measurement on a HV battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08115753A (en) * | 1994-10-14 | 1996-05-07 | Meidensha Corp | Method for controlling power-storing zinc-bromine battery |
| US20010006747A1 (en) * | 1999-12-23 | 2001-07-05 | Jean-Luc Vanhee | Safety device for electrical storage cell battery and battery equipped with the device |
| CN2511005Y (en) * | 2001-12-03 | 2002-09-11 | 武汉银泰科技股份有限公司 | U-type 12V horizontal lead-acid battery |
| CN2561103Y (en) * | 2002-08-07 | 2003-07-16 | 北京世纪千网电池技术有限公司 | Terminal structure of lead-acid battery |
-
2005
- 2005-09-13 CN CNB2005100373065A patent/CN100373685C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08115753A (en) * | 1994-10-14 | 1996-05-07 | Meidensha Corp | Method for controlling power-storing zinc-bromine battery |
| US20010006747A1 (en) * | 1999-12-23 | 2001-07-05 | Jean-Luc Vanhee | Safety device for electrical storage cell battery and battery equipped with the device |
| CN2511005Y (en) * | 2001-12-03 | 2002-09-11 | 武汉银泰科技股份有限公司 | U-type 12V horizontal lead-acid battery |
| CN2561103Y (en) * | 2002-08-07 | 2003-07-16 | 北京世纪千网电池技术有限公司 | Terminal structure of lead-acid battery |
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| CN1750316A (en) | 2006-03-22 |
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Owner name: BEIJING E-BOOK SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHENG HAOCHUAN Effective date: 20100402 |
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Free format text: CORRECT: ADDRESS; FROM: 518036 ROOM 303,LIANHUA NORTH BUILDING 1, FUTIAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 100176 F217, BUILDING 1, NO.18, KANGDING STREET, BEIJING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, BEIJING CITY |
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Effective date of registration: 20100402 Address after: 100176, building 1, building 18, Kangding street, Beijing economic and Technological Development Zone, Beijing, F217 Patentee after: Beijing easy Technology Co., Ltd. Address before: 303 room 1, 518036 Lianhua north, Shenzhen, Guangdong, Futian District Patentee before: Cheng Haochuan |
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Granted publication date: 20080305 Termination date: 20180913 |