CN102616143B - Power system for electromobile - Google Patents
Power system for electromobile Download PDFInfo
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- CN102616143B CN102616143B CN201210091757.7A CN201210091757A CN102616143B CN 102616143 B CN102616143 B CN 102616143B CN 201210091757 A CN201210091757 A CN 201210091757A CN 102616143 B CN102616143 B CN 102616143B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The application discloses a power system for an electrombile, wherein a motor and a motor control system are arranged on the electrombile, the power system for the electrombile comprises an installing support, a nickel-zinc battery pack, an overcharge protector and an overdischarge protector, the nickel-zinc battery pack is fixed in the installing support on the electrombile, a charge protecting loop and a discharge protecting loop are arranged on the nickel-zinc battery pack, the discharge protecting loop is connected with the motor and the motor control system, and the overcharge protector is connected in the discharge protecting loop in series, and is used for detecting the temperature of the nickel-zinc battery pack and controlling the charge protecting loop to be switched on or off according to the detected temperature; and the overdischarge protector is connected in the discharge protecting loop in series, and is used for acquiring the voltage of a nickel-zinc battery single body, and controlling the discharge protecting loop to be switched on or off according to the acquired voltage. According to the power system for the electrombile, the conditions of overcharge and overdischarge can be avoided, the service life of the battery can be prolonged, and the performance of the electrombile can be further improved.
Description
Technical field
The application relates to vehicle technology field, particularly relates to a kind of power system of electric automobile.
Background technology
Battery in the Electrical Bicycle on sale of existing market has lead-acid storage battery, lithium series battery (such as: lithium manganate battery, ferric phosphate lithium cell, cobalt acid lithium ion battery) etc. usually, but these batteries in use all can exist certain problem:
1, lead-acid storage battery specific energy is 35WH/Kg, and energy density per unit volume is that 70WH/L makes that his is bulky, and weight too heavily causes dismounting to be moved inconvenience more.In addition because lead-acid battery is provided with deflation hole, sulfuric acid electrolyte wherein frequently can overflow and externally to corrode with battery-driven car.In addition, due to electric liquid continuous loss often lead-acid battery use a period of time just need to add electrolyte otherwise battery because lean solution will very soon damage and can not use, later maintenance cost is caused to increase, charge efficiency is not high causes that the lead acid battery charge time is longer and operating range is short, far can not meet the requirement of modern people to trip instrument;
2 and for lithium series battery, due to its small volume, lighter in weight, dismounting charging is convenient.But through actual test, the LiMn2O4 48V10AH battery cyclic life-span that certain renowned company produces is only 673 times, is far from service life reaching 1500 times in pamphlet.Cannot use lower than battery-driven car when 10 DEG C in ambient temperature in addition.In addition, due to the more active feature of lithium ion, when be subject to ambient pressure, shock, destruction, high temperature or in battery self short circuit time battery very easily produce combustion explosion and destructive surprising.The frequent lithium electricity spontaneous combustion of in June, 2006 Dell Computer and 07 year Guangdong mobile phone lithium discharge-induced explosion causing death event, many similar cases suffice to show that lithium electricity is for the huge potential safety hazard existing for Electrical Bicycle, all likely causes to user the injury being difficult to make up at any time.High material price makes lithium electricity battery-driven car price remain high always.These reasons allow user hang back to lithium electricity Electrical Bicycle, are difficult to spread and use.
At present, there is a kind of novel battery---zinc-nickel cell, this battery does not in use produce environment, human harmful substance, and the service life of battery and safety higher.But due in existing zinc-nickel cell group due to can mass discrepancy be there is between cell, as capacity and internal resistance difference, along with the access times this differentiation that adds up is gradually enlarged, this is because certain battery that capacity is minimum, internal resistance is maximum in series winding battery pack is always in overcharge and over-discharge state, this not only battery pack greatly to shorten service life, and in use cause battery explosion because overcharge and overdischarge degree continue to deepen.Just because of existing for above-mentioned zinc-nickel cell serious potential safety hazard, thus can not widely use on Electrical Bicycle.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of power system of electric automobile, with realize can by zinc-nickel cell can safety applications on battery-driven car.
To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:
A kind of power system of electric automobile, battery-driven car is provided with motor and electric machine control system, this power system of electric automobile comprises:
Mounting bracket, zinc-nickel cell group, additives for overcharge protection device and overdischarge protector, wherein:
Described zinc-nickel cell group forms by multiple zinc-nickel cell is monomer series-connected, and it is inner that described zinc-nickel cell group is fastened on described mounting bracket;
Described mounting bracket is arranged on described battery-driven car;
Described zinc-nickel cell group is provided with charge protection loop, discharge prevention loop, wherein: described discharge prevention loop is connected with described motor, electric machine control system, for powering to described motor, electric machine control system;
Described additives for overcharge protection device is connected in the charge protection loop of described zinc-nickel cell group, and described additives for overcharge protection device for detecting the temperature of described zinc-nickel cell group, and controls being turned on or off of described charge protection loop according to the temperature detected;
Described overdischarge protector is connected in the discharge prevention loop of described zinc-nickel cell group; described overdischarge protector is connected with the both positive and negative polarity of multiple zinc-nickel cell monomer respectively; for gathering the voltage of each zinc-nickel cell monomer, according to gathered voltage control, discharge prevention loop is turned on or off.
Preferably, described mounting bracket comprises: multiple rack body, multiple metal connecting sheet, dovetail shaped fastener and binding bolt, wherein:
Described rack body is made up of top and bottom, and in described rack body, be provided with multiple space holding zinc-nickel cell monomer;
The side of described rack body is provided with groove, and the A/F of described groove is less than the width of bottom, and the groove location of adjacent two described rack bodies is relative;
Described dovetail shaped fastener is fixed in the groove on adjacent two described rack bodies, for being fixed together by adjacent two described rack bodies;
Multiple described metal connecting sheet is connected with the both positive and negative polarity of the multiple zinc-nickel cell monomers in described rack body, for being in series by the multiple zinc-nickel cell monomers in described rack body;
Described binding bolt runs through top and the bottom of described rack body, for being fixed in the top of described rack body and bottom, and the multiple zinc-nickel cell monomer and described rack body that are positioned at described rack body is fixed.
Preferably, described additives for overcharge protection device comprises:
Temperature collecting cell, temperature comparing unit, the first logic control element and the first electronic switch, wherein:
Described temperature collecting cell is for gathering the temperature signal of described zinc-nickel cell group;
Described temperature comparing unit is used for the value of the described temperature signal collected and preset temperature value to compare, and described comparative result is sent to described first logic control element;
Described first logical block is used for generating control command according to described comparative result, and described control command is sent to the first electronic switch;
When the value that comparative result is the described temperature signal collected is more than or equal to preset temperature value, described first logic control element generates open command; Otherwise described first logic control element generates close command;
Described first electronic switch is connected in described charge protection loop, for disconnecting according to the control command of described first logical block or closing.
Preferably, described additives for overcharge protection device is coolant-temperature switch;
Described coolant-temperature switch is arranged between the multiple zinc-nickel cell monomers in described zinc-nickel cell group;
When the temperature of described zinc-nickel cell group is more than or equal to preset temperature value, described coolant-temperature switch disconnects;
When the temperature of described zinc-nickel cell group is less than preset temperature value, described coolant-temperature switch closes.
Preferably, described overdischarge protector comprises:
Multiple voltage sampling unit, voltage comparison unit, the second logic control element and the second electronic switch, wherein:
Each described voltage sampling unit is connected with the both positive and negative polarity of a zinc-nickel cell monomer respectively, for gathering the voltage between each zinc-nickel cell monomer both positive and negative polarity;
Described voltage comparison unit, for being compared with reference voltage respectively by the voltage between each zinc-nickel cell monomer both positive and negative polarity collected, and obtains judged result;
Described second logic control element, for generating control command according to described judged result, and sends to described second electronic switch by described control command;
When the voltage that judged result is at least one zinc-nickel cell monomer is less than or equal to reference voltage, described second logic control element generates open command; Otherwise described second logic control element generates close command;
Described second electronic switch is connected in described discharge prevention loop, carries out disconnecting or closing for the control command sent according to described second logic control element.
From above technical scheme, this power system of electric automobile that the embodiment of the present application provides, owing to being in series with additives for overcharge protection device on the charge protection loop of battery pack, the discharge prevention loop of battery pack is provided with overdischarge protector, so in batteries charging process, once there is the situation of overcharge in zinc-nickel cell monomer, charge protection loop will disconnect by additives for overcharge protection device, stop charging, and in the discharge process of battery pack, once there is the situation of overdischarge in zinc-nickel cell monomer, so discharge prevention loop will disconnect by overdischarge protector, stop electric discharge.
Therefore, this power system of electric automobile that the embodiment of the present application provides, can avoid the situation of the overcharge of zinc-nickel cell group and overdischarge to occur, and then make the state of zinc-nickel cell group more stable, extend the service life of battery, the performance of the battery-driven car also improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the power system of electric automobile that Fig. 1 provides for the embodiment of the present application;
The plan structure schematic diagram of the mounting bracket that Fig. 2 provides for the embodiment of the present application;
The side-looking structural representation of the mounting bracket that Fig. 3 provides for the embodiment of the present application;
Plan structure schematic diagram after two mounting brackets that Fig. 4 provides for the embodiment of the present application connect;
Side-looking structural representation after two mounting brackets that Fig. 5 provides for the embodiment of the present application connect;
The structural representation of a kind of additives for overcharge protection device that Fig. 6 provides for the embodiment of the present application;
The structural representation of the another kind of additives for overcharge protection device that Fig. 7 provides for the embodiment of the present application;
The structural representation of a kind of overdischarge protector that Fig. 8 provides for the embodiment of the present application.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment one:
The structural representation of the power system of electric automobile that Fig. 1 provides for the embodiment of the present application.
In the embodiment of the present application, battery-driven car is provided with motor 1 and electric machine control system 2, motor 1 as actuating device, for driving the wheel movement of battery-driven car, for battery-driven car provides power.
When battery-driven car charges, usually adopt charger, as shown in Figure 1, in figure, 3 is charger, and the Main Function of charger 3 is input to after commercial power is carried out transformation, rectification and filtering in the battery pack on battery-driven car, charges to battery pack.
As shown in Figure 1, this power system of electric automobile comprises: mounting bracket (not shown), zinc-nickel cell group 4, additives for overcharge protection device 5 and overdischarge protector 6.
Each zinc-nickel cell group 4 is by the monomer series-connected composition of multiple zinc-nickel cell in the embodiment of the present application, and as required, multiple zinc-nickel cell group 4 can be cascaded.
Conveniently be securely fixed on battery-driven car by zinc-nickel cell group 4, in the embodiment of the present application, multiple zinc-nickel cell group 4 is arranged on mounting bracket inside, and then is fixed on battery-driven car by mounting bracket.
As shown in Figure 1; zinc-nickel cell group 4 is provided with charge protection loop I and discharge prevention loop II; wherein discharge prevention loop II is connected with motor 1, electric machine control system and 2 is connected; for powering to motor 1 and electric machine control system 2; so that electric machine control system 2 can control motor carry out Power output, and then the motion of driving electric car.
Charge protection loop I can be provided with two charging terminals, like this when charging, two charging terminals can be connected with charger 3, and then charge to zinc-nickel cell group 4.
In addition; as shown in Figure 1; additives for overcharge protection device 5 is connected in the charge protection loop I of zinc-nickel cell group 4; and additives for overcharge protection device 5 is arranged on the inside of zinc-nickel cell group 4; the temperature of zinc-nickel cell group 4 inside be made up of multiple zinc-nickel cell monomer can be detected; like this when some zinc-nickel cell monomer overcharges of zinc-nickel cell group 4 inside, will heat be produced, cause the temperature of zinc-nickel cell group 4 to raise.In addition; when the detected temperatures having served as charge protection device 5 is greater than or equal to preset temperature; charge protection loop can be controlled disconnect; and when detected temperatures is lower than preset temperature; the I conducting of charge protection loop can be kept; therefore can avoid when charging, there is the situation of overcharge in the zinc-nickel cell monomer in zinc-nickel cell group 4.
As shown in Figure 1; overdischarge protector 6 is connected in the discharge prevention loop II of zinc-nickel cell group 4; and overdischarge protector 6 is all connected with the both positive and negative polarity of each the zinc-nickel cell monomer in zinc-nickel cell group 4, such overdischarge protector 6 just can gather the voltage of each zinc-nickel cell monomer.
In addition; the voltage of each zinc-nickel cell monomer collected and reference voltage value also compare by overdischarge protector 6; when the voltage of any one zinc-nickel cell monomer is less than or equal to reference voltage; cross point protection device 6 discharge prevention loop II to be disconnected, and then there is the situation of overdischarge in the some zinc-nickel cell monomers can avoiding occurring in zinc-nickel cell group 4.
According to above description, in this power system of electric automobile that the embodiment of the present application provides, owing to being in series with additives for overcharge protection device on the charge protection loop of battery pack, the discharge prevention loop of battery pack is provided with overdischarge protector, so in batteries charging process, once there is the situation of overcharge in zinc-nickel cell monomer, charge protection loop will disconnect by additives for overcharge protection device, stop charging, and in the discharge process of battery pack, once there is the situation of overdischarge in zinc-nickel cell monomer, so discharge prevention loop will disconnect by overdischarge protector, stop electric discharge.
Therefore, this power system of electric automobile that the embodiment of the present application provides, can avoid the situation of the overcharge of zinc-nickel cell group and overdischarge to occur, and then make the state of zinc-nickel cell group more stable, extend the service life of battery, the performance of the battery-driven car also improved.
Embodiment two:
The plan structure schematic diagram of the mounting bracket that Fig. 2 provides for the embodiment of the present application.The side-looking structural representation of the mounting bracket that Fig. 3 provides for the embodiment of the present application.
As shown in Figures 2 and 3, this mounting bracket comprises: multiple rack body 71, multiple metal connecting sheet (not shown), dovetail shaped fastener 73 and binding bolt 74, wherein:
Each rack body 71 is all made up of top 711 and bottom 712, together with the top 711 of rack body 71 is interlocked with bottom 712, and be also provided with multiple space holding zinc-nickel cell monomer in rack body 71 inside, as shown in Figure 3, in figure, 8 is zinc-nickel cell monomer.The effect of multiple metal connecting sheet is in series by multiple zinc-nickel cell monomer 8.
As shown in Figures 2 and 3, the top 711 and bottom 712 of rack body 71 are provided with through hole 75, binding bolt 74 can be through in the through hole 75 of shown rack body 71 top 711 and bottom 712, is then fixed together in the top 711 of described rack body 71 and bottom 712.
In addition, in order to multiple rack body 71 is conveniently fixed together, as shown in Figure 2, in the embodiment of the present application, each side of rack body 1 is provided with at least one groove 76, and the A/F of groove 76 is less than the width of bottom, and namely groove 76 is the young greatly shape in the end, and when the setting position of groove 76 can make two rack bodies 71 placed side by side, the position of the groove 76 on two rack bodies 71 can be relative.
As shown in Figures 2 and 3, when mounted, multiple zinc-nickel cell monomer 8 is vertically placed on the bottom 712 of rack body 71, then the top 711 of rack body 71 is buckled on bottom 712, again binding bolt 74 is penetrated into opposite side by side, the bottom 711 of rack body 71 and top 712 can be made to be fixed together, and then zinc-nickel cell monomer 8 is fixed in rack body 71.
Plan structure schematic diagram after two mounting brackets that Fig. 4 provides for the embodiment of the present application connect.Side-looking structural representation after two mounting brackets that Fig. 5 provides for the embodiment of the present application connect.
In addition, as shown in Figure 4 and Figure 5, multiple zinc-nickel cell group 4 can also be put together as required, multiple rack body 71 can be linked together by dovetail shaped fastener 73.So only need mounting bracket be fixed on battery-driven car, zinc-nickel cell group can be realized to fixedly secure on battery-driven car.
Embodiment three:
The structural representation of a kind of additives for overcharge protection device that Fig. 6 provides for the embodiment of the present application.
As shown in Figure 6, this additives for overcharge protection device 5 can comprise: temperature collecting cell 51, temperature comparing unit 52, first logic control element 53 and the first electronic switch 54.
Temperature collecting cell 51 is arranged in zinc-nickel cell group 4, for gathering the temperature signal of zinc-nickel cell group 4.
In normal charging process, when the zinc-nickel cell monomer in zinc-nickel cell group 4 does not have overcharge situation, the bulk temperature of zinc-nickel cell group 4 is more steady, and once overcharge situation appears in some zinc-nickel cell monomers, the temperature of whole zinc-nickel cell group 4 so will be caused to raise, so arrange a temperature collecting cell 51 in zinc-nickel cell group 4.In the embodiment of the present application, temperature collecting cell 51 can be common temperature sensor.
In addition, in other embodiments of the application, in order to detect each zinc-nickel cell monomer better, can also be provided with a temperature collecting cell 51 on each zinc-nickel cell monomer, temperature collecting cell 51 is for gathering temperature on each zinc-nickel cell monomer.On each zinc-nickel cell monomer, temperature collecting cell 51 is provided with, so can detect whether zinc-nickel cell monomer occurs overcharge situation more rapidly and accurately due to each.
Temperature comparing unit 52 is connected with temperature collecting cell 51, for the value of the temperature signal collected and preset temperature value being compared, and comparative result is sent to the first logic control element 53.
First logical block 53 generates control command for the comparative result according to temperature comparing unit 52, and control command is sent to the first electronic switch 54.
Here control command has two kinds: open command and close command, and when the value that comparative result is the described temperature signal collected is more than or equal to preset temperature value, the first logic control element 53 generates open command; Otherwise the first logic control element 53 generates close command.
First electronic switch 54 is connected in the charge protection loop I of zinc-nickel cell group 4, and the first electronic switch 54 can disconnect according to the control command of the first logical block 53 or close.
Therefore, in the embodiment of the present application, when there is overcharge situation in certain the zinc-nickel cell monomer in zinc-nickel cell group 4, temperature collecting cell 51 will detect the temperature signal of whole zinc-nickel cell group 4, and then this temperature signal and preset temperature value are compared, when the value of the temperature signal collected is more than or equal to preset temperature value, first logical block 53 will generate open command, control the first electronic switch 54 to disconnect, and then charge protection loop I is disconnected, can stop charging to zinc-nickel cell group 4, and then avoid the problem causing affecting battery life due to overcharge.
Embodiment four:
In a upper embodiment; additives for overcharge protection device comprises: temperature collecting cell 51, temperature comparing unit 52, first logic control element 53 and the first electronic switch 54; this design can cause circuit structure complicated, not only cause cost to increase, and difficulty is larger when later period maintenance is safeguarded.
The structural representation of the another kind of additives for overcharge protection device that Fig. 7 provides for the embodiment of the present application.
In the embodiment of the present application, additives for overcharge protection device adopts coolant-temperature switch to realize.
As shown in Figure 7; 55 is coolant-temperature switch; coolant-temperature switch 55 is connected in the I of charge protection loop; and the position of coolant-temperature switch 55 can be arranged in zinc-nickel cell group 4; for gathering the temperature of zinc-nickel cell group 4; and when the temperature of zinc-nickel cell group 4 exceedes preset temperature value, coolant-temperature switch 55 will disconnect, and then charge protection loop I is disconnected.
In addition, also for ease of the temperature conditions accurately detecting each zinc-nickel cell monomer in zinc-nickel cell group 4, in other embodiments of the application, coolant-temperature switch 55 can be provided with multiple, multiple coolant-temperature switch 55 is separately positioned on different zinc-nickel cell monomers, and multiple coolant-temperature switch 55 is in series.In addition, the multiple coolant-temperature switchs 55 after series connection are directly connected in the I of charge protection loop.
Like this; when some zinc-nickel cell monomers cause temperature to raise due to overcharge; the coolant-temperature switch 55 corresponding with this zinc-nickel cell monomer sites will disconnect, and charge protection loop I can be made equally to disconnect, can avoid the problem causing affecting battery life due to overcharge.
Embodiment five:
The structural representation of a kind of overdischarge protector that Fig. 8 provides for the embodiment of the present application.
As shown in Figure 8, this overdischarge protector 6 comprises: voltage sampling unit 61, voltage comparison unit 62, second logic control element 63 and the second electronic switch 64.
Each voltage sampling unit 61 is connected with the both positive and negative polarity of a zinc-nickel cell monomer in zinc-nickel cell group 4 respectively, and each zinc-nickel cell monomer is all connected with a voltage sampling unit 61 in zinc-nickel cell group 4, voltage sampling unit 61 is for the voltage between zinc-nickel cell monomer both positive and negative polarity.
When zinc-nickel cell discharges, the voltage of each zinc-nickel cell monomer can reduce along with discharge process, therefore by detecting the voltage condition of zinc-nickel cell monomer, just can judge whether zinc-nickel cell monomer occurs the situation of overdischarge.
Voltage comparison unit 62 is connected with voltage sampling unit 61, for being compared with reference voltage respectively by the voltage between each zinc-nickel cell monomer both positive and negative polarity collected, and obtains judged result.
Second logic control element 63, generates control command for the judged result according to voltage comparison unit 62, and control command is sent to the second electronic switch 64;
Here control command has two kinds: open command and close command, and when the voltage that judged result is at least one zinc-nickel cell monomer is less than or equal to reference voltage, the second logic control element 63 generates open command; Otherwise the second logic control element 63 generates close command;
Second electronic switch 64 is connected in described discharge prevention loop, carries out disconnecting or closing for the control command sent according to described second logic control element.
Therefore, in the embodiment of the present application, when there is over-discharge situation in certain the zinc-nickel cell monomer in zinc-nickel cell group 4, voltage acquisition unit 51 will detect the voltage signal of this zinc-nickel cell monomer, and then this voltage signal and reference voltage are compared, when the value of the voltage signal collected is less than or equal to reference voltage, second logical block 63 will generate open command, control the second electronic switch 64 to disconnect, and then discharge prevention loop II is disconnected, zinc-nickel cell group 4 is stopped to export to motor 1, namely the discharge process of zinc-nickel cell group 4 is stopped, and then avoid the problem causing affecting battery life due to overdischarge.
In sum, this power system of electric automobile that the embodiment of the present application provides, owing to being in series with additives for overcharge protection device on the charge protection loop of battery pack, the discharge prevention loop of battery pack is provided with overdischarge protector, so in batteries charging process, once there is the situation of overcharge in zinc-nickel cell monomer, charge protection loop will disconnect by additives for overcharge protection device, stop charging, and in the discharge process of battery pack, once there is the situation of overdischarge in zinc-nickel cell monomer, so discharge prevention loop will disconnect by overdischarge protector, stop electric discharge.
Therefore, this power system of electric automobile that the embodiment of the present application provides, can avoid the situation of the overcharge of zinc-nickel cell group and overdischarge to occur, and then make the state of zinc-nickel cell group more stable, extend the service life of battery, the performance of the battery-driven car also improved.
The above is only the preferred implementation of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a power system of electric automobile, battery-driven car is provided with motor and electric machine control system,
Mounting bracket, zinc-nickel cell group, additives for overcharge protection device and overdischarge protector, wherein:
Described zinc-nickel cell group forms by multiple zinc-nickel cell is monomer series-connected, and it is inner that described zinc-nickel cell group is fastened on described mounting bracket;
Described mounting bracket is arranged on described battery-driven car;
Described zinc-nickel cell group is provided with charge protection loop, discharge prevention loop, wherein: described discharge prevention loop is connected with described motor, electric machine control system, for powering to described motor, electric machine control system, so that electric machine control system controls motor carry out Power output, and then the motion of driving electric car;
Described additives for overcharge protection device is connected in the charge protection loop of described zinc-nickel cell group, and described additives for overcharge protection device for detecting the temperature of described zinc-nickel cell group, and controls being turned on or off of described charge protection loop according to the temperature detected;
Described overdischarge protector is connected in the discharge prevention loop of described zinc-nickel cell group, described overdischarge protector is connected with the both positive and negative polarity of multiple zinc-nickel cell monomer respectively, for gathering the voltage of each zinc-nickel cell monomer, according to gathered voltage control, discharge prevention loop is turned on or off;
It is characterized in that,
Described mounting bracket comprises: multiple rack body, multiple metal connecting sheet, dovetail shaped fastener and binding bolt, wherein:
Described rack body is made up of top and bottom, and in described rack body, be provided with multiple space holding zinc-nickel cell monomer;
The side of described rack body is provided with groove, and the A/F of described groove is less than the width of bottom, and the groove location of adjacent two described rack bodies is relative;
Described dovetail shaped fastener is fixed in the groove on adjacent two described rack bodies, for being fixed together by adjacent two described rack bodies;
Multiple described metal connecting sheet is connected with the both positive and negative polarity of the multiple zinc-nickel cell monomers in described rack body, for being in series by the multiple zinc-nickel cell monomers in described rack body;
Described binding bolt runs through top and the bottom of described rack body, for being fixed in the top of described rack body and bottom, and the multiple zinc-nickel cell monomer and described rack body that are positioned at described rack body is fixed.
2. power system of electric automobile according to claim 1, is characterized in that, described additives for overcharge protection device comprises:
Temperature collecting cell, temperature comparing unit, the first logic control element and the first electronic switch, wherein:
Described temperature collecting cell is for gathering the temperature signal of described zinc-nickel cell group;
Described temperature comparing unit is used for the value of the described temperature signal collected and preset temperature value to compare, and comparative result is sent to described first logic control element;
Described first logical block is used for generating control command according to described comparative result, and described control command is sent to the first electronic switch;
When the value that comparative result is the described temperature signal collected is more than or equal to preset temperature value, described first logic control element generates open command; Otherwise described first logic control element generates close command;
Described first electronic switch is connected in described charge protection loop, for disconnecting according to the control command of described first logical block or closing.
3. power system of electric automobile according to claim 1, is characterized in that, described additives for overcharge protection device is coolant-temperature switch;
Described coolant-temperature switch is arranged between the multiple zinc-nickel cell monomers in described zinc-nickel cell group;
When the temperature of described zinc-nickel cell group is more than or equal to preset temperature value, described coolant-temperature switch disconnects;
When the temperature of described zinc-nickel cell group is less than preset temperature value, described coolant-temperature switch closes.
4. power system of electric automobile according to claim 1, is characterized in that, described overdischarge protector comprises:
Multiple voltage sampling unit, voltage comparison unit, the second logic control element and the second electronic switch, wherein:
Each described voltage sampling unit is connected with the both positive and negative polarity of a zinc-nickel cell monomer respectively, for gathering the voltage between each zinc-nickel cell monomer both positive and negative polarity;
Described voltage comparison unit, for being compared with reference voltage respectively by the voltage between each zinc-nickel cell monomer both positive and negative polarity collected, and obtains judged result;
Described second logic control element, for generating control command according to described judged result, and sends to described second electronic switch by described control command;
When the voltage that judged result is at least one zinc-nickel cell monomer is less than or equal to reference voltage, described second logic control element generates open command; Otherwise described second logic control element generates close command;
Described second electronic switch is connected in described discharge prevention loop, carries out disconnecting or closing for the control command sent according to described second logic control element.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210091757.7A CN102616143B (en) | 2012-03-30 | 2012-03-30 | Power system for electromobile |
| HK13100107.5A HK1172871A1 (en) | 2012-03-30 | 2013-01-04 | A power system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210091757.7A CN102616143B (en) | 2012-03-30 | 2012-03-30 | Power system for electromobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102616143A CN102616143A (en) | 2012-08-01 |
| CN102616143B true CN102616143B (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210091757.7A Active CN102616143B (en) | 2012-03-30 | 2012-03-30 | Power system for electromobile |
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| CN (1) | CN102616143B (en) |
| HK (1) | HK1172871A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180005008A (en) * | 2016-07-05 | 2018-01-15 | 현대자동차주식회사 | Apparatus for preventing overcharge of battery in eco-vehicle |
| CN106240375B (en) * | 2016-08-17 | 2018-06-05 | 杭州新时空电动汽车有限公司 | Vehicle-mounted internet intelligent control system and its control method |
| CN109724036A (en) * | 2019-01-21 | 2019-05-07 | 湖南科霸汽车动力电池有限责任公司 | Ni-mh photovoltaic energy storage lighting system |
| CN110034261A (en) * | 2019-05-22 | 2019-07-19 | 湖南科霸汽车动力电池有限责任公司 | The automobile-used nickel-metal hydride battery packet of two-wheel electric |
| CN111746288B (en) * | 2020-06-12 | 2023-03-14 | 南昌大学 | Design method of active power-off protection system based on environment perception collision |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753240A (en) * | 2004-09-24 | 2006-03-29 | 株式会社东芝 | Storage battery system,regeneration storage battery system and automobile |
| CN101794919A (en) * | 2009-12-28 | 2010-08-04 | 南昌大学 | Power battery management method and device |
| CN101944642A (en) * | 2010-04-28 | 2011-01-12 | 浙江绿源电动车有限公司 | Battery device and battery containing device |
| CN102088066A (en) * | 2010-12-22 | 2011-06-08 | 奇瑞汽车股份有限公司 | Battery module and battery pack |
| CN202507942U (en) * | 2012-03-30 | 2012-10-31 | 广东博特动力能源有限公司 | Power system of electric vehicle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4732897B2 (en) * | 2003-09-03 | 2011-07-27 | パナソニック株式会社 | Power storage device and wiring pattern |
| JP3882818B2 (en) * | 2004-01-15 | 2007-02-21 | ソニー株式会社 | Battery pack |
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2012
- 2012-03-30 CN CN201210091757.7A patent/CN102616143B/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1753240A (en) * | 2004-09-24 | 2006-03-29 | 株式会社东芝 | Storage battery system,regeneration storage battery system and automobile |
| CN101794919A (en) * | 2009-12-28 | 2010-08-04 | 南昌大学 | Power battery management method and device |
| CN101944642A (en) * | 2010-04-28 | 2011-01-12 | 浙江绿源电动车有限公司 | Battery device and battery containing device |
| CN102088066A (en) * | 2010-12-22 | 2011-06-08 | 奇瑞汽车股份有限公司 | Battery module and battery pack |
| CN202507942U (en) * | 2012-03-30 | 2012-10-31 | 广东博特动力能源有限公司 | Power system of electric vehicle |
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| HK1172871A1 (en) | 2013-05-03 |
| CN102616143A (en) | 2012-08-01 |
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