CN102510111A - Identification circuit for specification of storage battery - Google Patents
Identification circuit for specification of storage battery Download PDFInfo
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- CN102510111A CN102510111A CN2011103318690A CN201110331869A CN102510111A CN 102510111 A CN102510111 A CN 102510111A CN 2011103318690 A CN2011103318690 A CN 2011103318690A CN 201110331869 A CN201110331869 A CN 201110331869A CN 102510111 A CN102510111 A CN 102510111A
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Abstract
The invention provides an identification circuit for a specification of a storage battery, which comprises a first voltage dividing unit, a second voltage dividing unit and an identification device. The first voltage dividing unit and the second voltage dividing unit are serially connected between a power source and a cathode port of the storage battery, the second voltage dividing unit is connected to the cathode port of the storage battery, when the specification of the storage battery is correct, the specification of the storage battery is relevant to a resistance value of the second voltage dividing unit, the identification device is connected to the second voltage dividing unit, and is used for detecting identification pressure on the second voltage dividing unit and comparing the identification pressure with a preset voltage threshold range, and if the identification pressure is in the voltage threshold range, then the specification of the storage battery is correct. By means of the technical scheme, the specification of the storage battery can be effectively identified, potential safety hazards in charging and use due to an improper specification of a storage battery are avoided, and the service life of the storage battery is ensured.
Description
Technical field
The present invention relates to the storage battery recognition technology, in particular to a kind of identification circuit of storage battery specification.
Background technology
The storage battery of electric vehicle is various in style on the market, and lead-acid battery, ternary lithium battery, ferric phosphate lithium cell and lithium manganate battery or the like are arranged.The battery of same kind, its electric pressure has multiple again, like 24V, 36V, 48V etc.When adopting, just damage battery easily, even can have an accident with unmatched controller of storage battery specification or charger.
Therefore, need a kind of recognition technology of new storage battery specification, can effectively discern, avoid because the specification of storage battery is improper to the specification of storage battery, the potential safety hazard that causes charging or bring when using, and guarantee useful life of storage battery.
Summary of the invention
The present invention just is being based on the problems referred to above; Proposed a kind of recognition technology of new storage battery specification, can effectively discern, avoided because the specification of storage battery is improper to the specification of storage battery; The potential safety hazard of bringing when causing charging or use, and the useful life of assurance storage battery.
In view of this, the present invention proposes a kind of identification circuit of storage battery specification, comprising: first partial pressure unit, and second partial pressure unit is connected in series between the negative pole port of power supply and said storage battery; Said second partial pressure unit is connected to the negative pole port of said storage battery, and when the specification of said storage battery was correct, the specification of said storage battery was associated with the resistance of said second partial pressure unit; Recognition device; Be connected to said second partial pressure unit, detect the identification voltage on said second partial pressure unit, and said identification voltage and preset voltage threshold scope are compared; If said identification voltage is in said voltage threshold scope, then the specification of said storage battery is correct.In this technical scheme, between the negative pole of power supply and storage battery, constitute series loop through first partial pressure unit and second partial pressure unit; Wherein, the resistance of second partial pressure unit and the specification of storage battery are complementary, therefore; When if the specification of the storage battery that is connected is incorrect; Magnitude of voltage on the second corresponding partial pressure unit also can change, and exceeds preset threshold value, and then can be by operations such as the user change.The specification of the storage battery here comprises the kind and the electric pressure of storage battery.In addition, the identification circuit of the specification of this storage battery can use in the charger of storage battery, and also can use controller at storage battery is " throttle " etc. of electric motor car, certainly, also can all assemble, thereby reaches better detection and protection effect.
In technique scheme; Preferably; Said first partial pressure unit comprises: first resistance, and first pin of said first resistance is connected to said power supply, receives power supply signal; And second pin of said first resistance is connected to said second partial pressure unit, exports said power supply signal to said second partial pressure unit.In this technical scheme; First resistance is introduced second partial pressure unit, recognition device etc. simultaneously with power supply signal; Carry out dividing potential drop with second partial pressure unit on the one hand; Then the signal in the input recognition device is carried out current limliting on the other hand, prevent that when the overtension of storage battery, the big electric current of generation causes damage to recognition device.
In technique scheme; Preferably; Said second partial pressure unit comprises: second resistance, and first pin of said second resistance is connected to said first partial pressure unit, receives the power supply signal from said first partial pressure unit; And second pin of said second resistance is connected to the said negative pole port of said storage battery, and said power supply signal is exported to the said negative pole port of said storage battery through said second pin.In this technical scheme, second resistance directly links to each other with storage battery, and its resistance and correct storage battery specification are complementary.As in electric motor car; For the storage battery specification that should use; In the identification circuit of its assembling, use second resistance corresponding to the storage battery specification, thereby when having used the storage battery of incorrect specification; Can learn the correctness of storage battery specification rapidly and accurately through to after the second ohmically voltage detecting.
In technique scheme, preferably, said recognition device comprises: acquisition module, be connected to said second partial pressure unit, and gather the said identification voltage of said second partial pressure unit; Comparison module is connected to said acquisition module, the said identification voltage and the said preset voltage threshold scope of said acquisition module collection is compared, and send comparison signal according to comparative result to judge module; Said judge module is connected to said comparison module, receives the said comparison signal from said comparison module, and judges according to said comparison signal whether the specification of said storage battery is correct.In this technical scheme; Recognition device is the control assembly in the process that the storage battery specification is discerned, and for the charging or control system of a cover storage battery, second partial pressure unit is what to have confirmed; Thereby can be directly through the detection of its voltage being judged whether the storage battery specification is correct; And corresponding to this cover system, in recognition device, set the voltage threshold scope, fluctuation possibly appear in the voltage on second partial pressure unit; To such an extent as to if but fluctuate excessive exceed threshold range after, the specification that storage battery then is described possibly be incorrect.
In technique scheme, preferably, said judge module also comprises: the switch submodule is the specification of said storage battery when incorrect in said judged result, to said storage battery transmit button signal, cuts off said storage battery and is connected with the power supply of external device (ED).In this technical scheme, after judging for the specification of storage battery, the user maybe and not to be noted; For fear of potential safety hazard takes place; Can be when judging that specification is incorrect or not matching, the power supply of cutting off storage battery automatically connects, and comprises not from the charger power taking, not to the peripheral control unit power supply or not controlled by peripheral control unit; Protect whole system, also can prolong the useful life of storage battery.
In technique scheme, preferably, said judge module also comprises: prompting submodule, be connected to said switch submodule, and after the said switching signal that receives from said switch submodule, send cue to the outside.In this technical scheme, can make the user obtain prompting, and in time the incorrect storage battery of specification unloaded or changes through sending cue, avoid causing danger.Cue can be various ways such as sound such as caution sound, light such as warning lamp.
In technique scheme, preferably, also comprise: the lowering and stabilizing blood pressure unit, be connected to said storage battery or external power source, will carry out from the signal of said storage battery or said external power source forming said power supply signal after lowering and stabilizing blood pressure handles.In this technical scheme; If when using charger that storage battery is charged; The power supply signal that the lowering and stabilizing blood pressure unit will use in the time of will being identification from outside conversion of signals like AC power; If when using controller, be the controller power supply then by storage battery, and the power supply signal that the conversion of signals in the storage battery is used during for identification.
In technique scheme, preferably, said power supply signal is+the 5V signal.
In technique scheme, preferably, also comprise: voltage regulation unit, an end of said voltage regulation unit is connected to said first partial pressure unit, said second partial pressure unit and said recognition device, and other end ground connection.In this technical scheme, the tie point of first partial pressure unit, second partial pressure unit and recognition device is carried out voltage stabilizing control, guarantee the steady operation and normal identification of circuit.
In technique scheme, preferably, said voltage regulation unit comprises: capacitor, first pin of said capacitor is connected to said first partial pressure unit, said second partial pressure unit and said recognition device, and the second pin ground connection of said capacitor.In this technical scheme, capacitor is the voltage stabilizing components and parts of using always, certainly, also can adopt other voltage-stabilizing device, voltage stabilizing circuit, stable-pressure device etc., even possibly reach better effect.
Through above technical scheme, can effectively discern the specification of storage battery, avoid because the specification of storage battery is improper the potential safety hazard of bringing when causing charging or use, and the useful life of assurance storage battery.
Description of drawings
Fig. 1 shows the composition frame chart of the identification circuit of storage battery specification according to an embodiment of the invention;
Fig. 2 shows the sketch map of the identification circuit of storage battery specification according to an embodiment of the invention; And
Fig. 3 shows the identification circuit figure of storage battery specification according to an embodiment of the invention.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 shows the composition frame chart of the identification circuit of storage battery specification according to an embodiment of the invention.
As shown in Figure 1, the identification circuit 100 of storage battery specification according to an embodiment of the invention comprises: first partial pressure unit 102, and second partial pressure unit 104 is connected in series between the negative pole port of power supply and storage battery 118; Second partial pressure unit 104 is connected to the negative pole port of storage battery 118, and when the specification of storage battery 118 was correct, the specification of storage battery 118 was associated with the resistance of second partial pressure unit 104; Recognition device 106 is connected to second partial pressure unit 104, detects the identification voltage on second partial pressure unit 104, and will discern voltage and compare with preset voltage threshold scope, if identification voltage is in the voltage threshold scope, then the specification of storage battery 118 is correct.In this technical scheme, between the negative pole of power supply and storage battery 118, constitute series loop through first partial pressure unit 102 and second partial pressure unit 104; Wherein, the specification of the resistance of second partial pressure unit 104 and storage battery 118 should be complementary, therefore; When if the specification of the storage battery that is connected 118 is incorrect; Magnitude of voltage on the second corresponding partial pressure unit 104 also can change, and exceeds preset threshold value, and then can be by operations such as the user change.The specification of the storage battery here comprises the kind and the electric pressure of storage battery.In addition, the identification circuit of the specification of this storage battery 118 can use in the charger of storage battery 118; Also can use the controller at storage battery 118 is electric motor car " throttle " etc.; Certainly, also can all assemble, thereby reach better detection and protection effect.
In technique scheme; First partial pressure unit 102 comprises: first resistance, and first pin of first resistance is connected to power supply, receives power supply signal; And second pin of first resistance is connected to second partial pressure unit 104, exports power supply signal to second partial pressure unit 104.In this technical scheme; First resistance is introduced second partial pressure unit 104, recognition device 106 etc. simultaneously with power supply signal; Carry out dividing potential drop with second partial pressure unit 104 on the one hand; Then the signal in the input recognition device 106 is carried out current limliting on the other hand, prevent that the big electric current of generation causes damage to recognition device 106 when the overtension of storage battery 118.
In technique scheme; Second partial pressure unit 104 comprises: second resistance; First pin of second resistance is connected to first partial pressure unit 102; Reception is from the power supply signal of first partial pressure unit 102, and second pin of second resistance is connected to the negative pole port of storage battery 118, and power supply signal exported to the negative pole port of storage battery 118 through second pin.In this technical scheme, second resistance directly links to each other with storage battery 118, and its resistance and correct storage battery specification are complementary.As in electric motor car; For the storage battery specification that should use; In the identification circuit of its assembling, use second resistance corresponding to the storage battery specification, thereby when having used the storage battery of incorrect specification; Can learn the correctness of storage battery specification rapidly and accurately through to after the second ohmically voltage detecting.
In technique scheme, recognition device 106 comprises: acquisition module 108, be connected to second partial pressure unit 104, and gather the identification voltage of second partial pressure unit 104; Comparison module 110 is connected to acquisition module 108, and the identification voltage that acquisition module 108 is gathered compares with preset voltage threshold scope, and sends comparison signal according to comparative result to judge module 112; Judge module 112 is connected to comparison module 110, receives the comparison signal from comparison module 110, and judges according to comparison signal whether the specification of storage battery is correct.In this technical scheme; Recognition device 106 is the control assemblies in the process that the storage battery specification is discerned, and for the charging or control system of a cover storage battery, second partial pressure unit 104 is what to have confirmed; Thereby can be directly through the detection of its voltage being judged whether the storage battery specification is correct; And corresponding to this cover system, in recognition device 106, set the voltage threshold scope, fluctuation possibly appear in the voltage on second partial pressure unit 104; To such an extent as to if but fluctuate excessive exceed threshold range after, the specification that storage battery then is described possibly be incorrect.
In technique scheme, judge module 112 also comprises: switch submodule 1120 is the specification of storage battery 118 when incorrect in judged result, to storage battery 118 transmit button signals, cuts off storage battery 118 and is connected with the power supply of external device (ED).In this technical scheme, after judging for the specification of storage battery 118, the user maybe and not to be noted; For fear of potential safety hazard takes place; Can be when judging that specification is incorrect or not matching, the power supply of cutting off storage battery 118 automatically connects, and comprises not from the charger power taking, not to the peripheral control unit power supply or not controlled by peripheral control unit; Protect whole system, also can prolong the useful life of storage battery 118.
In technique scheme, judge module 112 also comprises: prompting submodule 1122, be connected to switch submodule 1120, and after the switching signal that receives from switch submodule 1120, send cue to the outside.In this technical scheme, can make the user obtain prompting, and in time the incorrect storage battery of specification unloaded or changes through sending cue, avoid causing danger.Cue can be various ways such as sound such as caution sound, light such as warning lamp.
In technique scheme, also comprise: lowering and stabilizing blood pressure unit 114, be connected to storage battery 118 or external power source, will carry out from the signal of storage battery 118 or external power source forming power supply signal after lowering and stabilizing blood pressure handles.In this technical scheme; If when using charger that storage battery is charged; The power supply signal that lowering and stabilizing blood pressure unit 114 will use in the time of will being identification from outside conversion of signals like AC power; If when using controller, be the controller power supply then by storage battery, and the power supply signal that the conversion of signals in the storage battery is used during for identification.
In technique scheme, also comprise: said power supply signal is+the 5V signal.
In technique scheme, also comprise: voltage regulation unit 116, an end of voltage regulation unit 116 are connected to first partial pressure unit 102, second partial pressure unit 104 and recognition device 106, and other end ground connection.In this technical scheme, the tie point of first partial pressure unit 102, second partial pressure unit 104 and recognition device 106 is carried out voltage stabilizing control, guarantee the steady operation and normal identification of circuit.
In technique scheme, voltage regulation unit 116 comprises: capacitor, first pin of capacitor are connected to first partial pressure unit 102, second partial pressure unit 104 and recognition device 106, and the second pin ground connection of capacitor.In this technical scheme, capacitor is the voltage stabilizing components and parts of using always, certainly, also can adopt other voltage-stabilizing device, voltage stabilizing circuit, stable-pressure device etc., even possibly reach better effect.
Fig. 2 shows the sketch map of the identification circuit of storage battery specification according to an embodiment of the invention.
As shown in Figure 2, the anodal port of storage battery 202 is connected to lowering and stabilizing blood pressure unit 204, and the voltage of storage battery 202 possibly be 24V, 36V, 48V etc., and numerical value is higher usually, after need changing, just can be used for identification circuit.As, used lowering and stabilizing blood pressure unit 204 to carry out the conversion of voltage here, will convert into from the numerical value higher voltage of storage battery 202+5V voltage, and should+5V voltage imports first partial pressure unit 206.
First partial pressure unit 206 with carry out dividing potential drop jointly after second partial pressure unit 208 is connected, and be connected to the negative pole port of storage battery 202 by second partial pressure unit 208, form the loop.The resistance of second partial pressure unit 208 is associated with the specification of storage battery 202; Like electric motor car for the storage battery that different size is housed 202; The resistance of second partial pressure unit 208 of loading above can be that the difference of kind and electric pressure is selected and installed according to the specification of storage battery 202; Thereby, when having only installation or using the storage battery 202 of correct specification, can make second partial pressure unit 208 produce correct magnitude of voltage; After further the magnitude of voltage on second partial pressure unit 208 being measured by recognition device 210 then, can learn just whether the specification of storage battery 202 is correct.Wherein, In recognition device 210, also preset the voltage threshold scope; When the specification of storage battery 202 was correct, the magnitude of voltage on second partial pressure unit 208 also possibly fluctuate, but can not exceed preset voltage threshold scope; And when the specification of the storage battery of installing 202 is incorrect, just can exceed this threshold range.
When recognition device 210 detects magnitude of voltage on second partial pressure unit 208 and exceeds the voltage threshold scope; Send signal on the one hand; Make storage battery 202 be connected cut-out with the power supply of external circuit, comprise here like storage battery 202 through the charger charging time, charger will be to storage battery 202 power supplies; Like storage battery 202 when supplying power for controller, storage battery 202 output of stopping power supply.On the other hand, recognition device 210 can also pass through sound such as buzzing, caution sound or modes such as light such as warning lamp, and the incorrect prompting of specification to the user expresses storage battery 202 makes the user can find and unload or change storage battery 202 as early as possible.
Also comprise voltage regulation unit 212 among the figure, be connected to first partial pressure unit 206, second partial pressure unit 208 and recognition device 210, for entire circuit and system carry out the stability of signal and the fail safe protection of circuit.
Fig. 3 shows the identification circuit figure of storage battery specification according to an embodiment of the invention.
As shown in Figure 3, storage battery 302 is installed on the battery socket 314, simultaneously, also has second resistance 308 on the battery socket 314.Comprise recognition device in controller/charger 316, whether the specification that is used to discern storage battery 302 is correct, wherein, comprises lowering and stabilizing blood pressure unit 304, control chip 310, first resistance 306, capacitor 312.When controller/charger 316 is specially controller; According to mode as shown in the figure; Be connected to the anodal port of storage battery 302 by lowering and stabilizing blood pressure unit 304; By storage battery 302 power supplies, be 48V like supposition the storage battery 302 here, be the 5V signal with this 48V conversion of signals then through lowering and stabilizing blood pressure unit 304; And when controller/charger 316 is specially charger, then directly supply power by external power source 303, as the 220V civil power being converted into the 5V signal; Certainly, specifically possibly convert 220V into 12V earlier here, convert 12V into 5V again; But this process is for not influence of identifying of the present invention; Just will can't help storage battery 302 here and supply power, certainly, obviously also can supply power by storage battery 302; Because be to convert 5V into by 48V equally, this situation is the same when being specially controller with controller/charger 316.
The specification of the resistance of second resistance 308 and storage battery 302 is that the size of kind and electric pressure is complementary; And for battery socket 314; Second resistance 308 is installed on the battery socket 314; Storage battery 302 then is demountable, so for unmodifiable second resistance 308, when storage battery 302 is correct; Magnitude of voltage on the second then corresponding resistance 308 also is in fluctuation in the certain limit, thereby only needs to detect through the magnitude of voltage on 310 pairs second resistance 308 of control chip.Need to prove, comprise preset voltage threshold scope in the control chip 310, have only, can explain that the specification of storage battery 302 is correct when detecting the magnitude of voltage obtain in this threshold range the time, otherwise, explain that the specification of storage battery 302 is incorrect.
For the specification of storage battery 302 when incorrect, control chip cuts off being connected of storage battery 302 and external circuit on the one hand, to guarantee the safety of circuit, prolongs the useful life of storage battery 302; On the other hand, through sound such as buzzing, caution sound or modes such as light such as warning lamp, the incorrect prompting of specification to the user expresses storage battery 302 makes the user can find and unload or change storage battery 302 as early as possible.
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered that electric vehicle storage battery specification is various on the market, when adopting, just damaged battery easily, even can have an accident with unmatched controller of storage battery specification or charger.Therefore, the invention provides a kind of identification circuit of storage battery specification, can effectively discern, avoid, the potential safety hazard of bringing when causing charging or use, and the useful life of assurance storage battery because the specification of storage battery is improper to the specification of storage battery.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the identification circuit of a storage battery specification is characterized in that, comprising:
First partial pressure unit, and second partial pressure unit is connected in series between the negative pole port of power supply and said storage battery;
Said second partial pressure unit is connected to the negative pole port of said storage battery, and when the specification of said storage battery was correct, the specification of said storage battery was associated with the resistance of said second partial pressure unit;
Recognition device; Be connected to said second partial pressure unit, detect the identification voltage on said second partial pressure unit, and said identification voltage and preset voltage threshold scope are compared; If said identification voltage is in said voltage threshold scope, then the specification of said storage battery is correct.
2. the identification circuit of storage battery specification according to claim 1 is characterized in that, said first partial pressure unit comprises:
First resistance, first pin of said first resistance is connected to said power supply, receives power supply signal, and second pin of said first resistance is connected to said second partial pressure unit, exports said power supply signal to said second partial pressure unit.
3. the identification circuit of storage battery specification according to claim 1 is characterized in that, said second partial pressure unit comprises:
Second resistance; First pin of said second resistance is connected to said first partial pressure unit; Reception is from the power supply signal of said first partial pressure unit; And second pin of said second resistance is connected to the said negative pole port of said storage battery, and said power supply signal is exported to the said negative pole port of said storage battery through said second pin.
4. according to the identification circuit of each described storage battery specification in the claim 1 to 3, it is characterized in that said recognition device comprises:
Acquisition module is connected to said second partial pressure unit, gathers the said identification voltage of said second partial pressure unit;
Comparison module is connected to said acquisition module, the said identification voltage and the said preset voltage threshold scope of said acquisition module collection is compared, and send comparison signal according to comparative result to judge module;
Said judge module is connected to said comparison module, receives the said comparison signal from said comparison module, and judges according to said comparison signal whether the specification of said storage battery is correct.
5. the identification circuit of storage battery specification according to claim 4 is characterized in that, said judge module also comprises:
The switch submodule is the specification of said storage battery when incorrect in said judged result, to said storage battery transmit button signal, cuts off said storage battery and is connected with the power supply of external device (ED).
6. the identification circuit of storage battery specification according to claim 5 is characterized in that, said judge module also comprises:
Prompting submodule is connected to said switch submodule, after the said switching signal that receives from said switch submodule, sends cue to the outside.
7. the identification circuit of storage battery specification according to claim 1 is characterized in that, also comprises:
The lowering and stabilizing blood pressure unit is connected to said storage battery or external power source, will carry out from the signal of said storage battery or said external power source forming said power supply signal after lowering and stabilizing blood pressure handles.
8. the identification circuit of storage battery specification according to claim 7 is characterized in that, said power supply signal is+the 5V signal.
9. the identification circuit of storage battery specification according to claim 1 is characterized in that, also comprises:
Voltage regulation unit, an end of said voltage regulation unit is connected to said first partial pressure unit, said second partial pressure unit and said recognition device, and other end ground connection.
10. the identification circuit of storage battery specification according to claim 9 is characterized in that, said voltage regulation unit comprises:
Capacitor, first pin of said capacitor is connected to said first partial pressure unit, said second partial pressure unit and said recognition device, and the second pin ground connection of said capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103318690A CN102510111A (en) | 2011-10-27 | 2011-10-27 | Identification circuit for specification of storage battery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103318690A CN102510111A (en) | 2011-10-27 | 2011-10-27 | Identification circuit for specification of storage battery |
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| CN102510111A true CN102510111A (en) | 2012-06-20 |
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| CN2011103318690A Pending CN102510111A (en) | 2011-10-27 | 2011-10-27 | Identification circuit for specification of storage battery |
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| CN107797009A (en) * | 2017-11-28 | 2018-03-13 | 郑州云海信息技术有限公司 | A kind of power supply mixed insertion detecting system and power module |
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Application publication date: 20120620 |