CN202507942U - Power system of electric vehicle - Google Patents
Power system of electric vehicle Download PDFInfo
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- CN202507942U CN202507942U CN201220131205XU CN201220131205U CN202507942U CN 202507942 U CN202507942 U CN 202507942U CN 201220131205X U CN201220131205X U CN 201220131205XU CN 201220131205 U CN201220131205 U CN 201220131205U CN 202507942 U CN202507942 U CN 202507942U
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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
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Abstract
The utility model discloses a power system of an electric vehicle, and is characterized in that the electric vehicle is provided with a motor and a motor control system, the power system of the electric vehicle comprises a mounting support, a zinc-nickel battery pack, an overcharge protector and an overdischarge protector, the zinc-nickel battery pack is located in the mounting support fixed on the electric vehicle, the zinc-nickel battery pack is provided with a charge protection loop and a discharge protection loop, the discharge protection loop is connected with the motor and the motor control system, the overcharge protector is connected to the charge protection loop in series so as to detect the temperature of the zinc-nickel battery pack and control the charge protection loop to switch on or off according to the detected temperature; the overdischarge protector is connected to the discharge protection loop in series so as to detect the voltage of each zinc-nickel battery monomer and control the discharge protection loop to switch on or off according to the collected voltage. According to the power system of the electric vehicle, conditions of overcharge and overdischarge can be avoided, the service life of the battery is prolonged, and performances of the electric vehicle are improved.
Description
Technical field
The application relates to the 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 (for example: lithium manganate battery, ferric phosphate lithium cell, cobalt acid lithium ion battery) etc. usually, but in use all can there be certain problem in these batteries:
1, the lead-acid storage battery specific energy is 35WH/Kg, and energy density per unit volume is that 70WH/L makes his bulky, and weight too heavily causes dismounting to be moved inconvenience is arranged more.Because lead-acid battery is provided with deflation hole, sulfuric acid electrolyte wherein can overflow external to corroding with battery-driven car frequently in addition.In addition; Because electro hydraulic continuous loss often lead-acid battery is using a period of time to add electrolyte with regard to needs otherwise battery will damage and can not use because of lean solution very soon; Cause later maintenance cost to increase; The not high long and operating range weak point of lead acid battery charge time that causes of charge efficiency far can not satisfy the requirement of people in modern to the trip instrument;
2 and for lithium series battery, because its volume is less, weight is lighter, and the dismounting charging is convenient.But through actual test, the LiMn2O4 48V10AH battery pack cycle life that certain renowned company produced is merely 673 times, is far from reaching 1500 times in the pamphlet service life.Battery-driven car can't use when ambient temperature is lower than 10 ℃ in addition.In addition because the active characteristics of lithium ion, when receive ambient pressure, bump, destruction, high temperature or during in battery self short circuit 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 incident; Many similar cases suffice to show that the lithium electricity is used for the existing huge potential safety hazard of Electrical Bicycle, all might cause the injury that is difficult to remedy to the user at any time.High material price makes lithium electricity battery-driven car price high always.These reasons let the user that lithium electricity Electrical Bicycle is hung back, and very difficult large tracts of land is promoted the use of.
At present, a kind of later-model battery---zinc-nickel cell occurs, this battery does not in use produce environment, human harmful substance, and the service life of battery and safety are higher.But owing to can have mass discrepancy owing between cell in the existing zinc-nickel cell group; Like capacity and internal resistance difference; Along with access times add up this differentiation by expansion gradually; This is because capacity certain battery minimum, that internal resistance is maximum always is in and overcharges and over-discharge state in the polyphone battery pack, this not only battery pack can shorten greatly service life, and in use owing to overcharge and the overdischarge degree continues intensification and causes battery explosion.Just because of above-mentioned zinc-nickel cell existing serious potential safety hazard, thereby can not on Electrical Bicycle, be widely used.
The utility model content
In view of this, the application embodiment provides a kind of power system of electric automobile, with realize can with zinc-nickel cell can Secure Application to battery-driven car.
To achieve these goals, the technical scheme that provides of the application embodiment is following:
A kind of power system of electric automobile, battery-driven car are provided with motor and electric machine control system, and this power system of electric automobile comprises:
Mounting bracket, zinc-nickel cell group, additives for overcharge protection device and overdischarge protector, wherein:
Said zinc-nickel cell group is formed by a plurality of zinc-nickel cells are monomer series-connected, and it is inner that said zinc-nickel cell group is fastened on said mounting bracket;
Said mounting bracket is installed on said battery-driven car;
Said zinc-nickel cell group is provided with charge protection loop, discharge prevention loop, and wherein: said discharge prevention loop is connected with said motor, electric machine control system;
Said additives for overcharge protection device is connected in the charge protection loop of said zinc-nickel cell group, and said additives for overcharge protection device detects the temperature of said zinc-nickel cell group, and controls the conducting or the disconnection in said charge protection loop according to detected temperature;
Said overdischarge protector is connected in the discharge prevention loop of said zinc-nickel cell group; Said overdischarge protector is connected with the both positive and negative polarity of a plurality of zinc-nickel cell monomers respectively; Gather the voltage of each zinc-nickel cell monomer, and according to the conducting or the disconnection in the said discharge prevention of the voltage control of being gathered loop.
Preferably, said mounting bracket comprises: a plurality of rack bodies, a plurality of metal connecting sheet, dovetail shaped fastener and binding bolt, wherein:
Said rack body is made up of top and bottom, and in said rack body, is provided with a plurality of spaces that hold the zinc-nickel cell monomer;
The side of said rack body is provided with groove, and the A/F of said groove is less than the width of bottom, and the groove location of adjacent two said rack bodies is relative;
Said dovetail shaped fastener is fixed in the groove on adjacent two said rack bodies, is used for adjacent two said rack bodies are fixed together;
The both positive and negative polarity of a plurality of zinc-nickel cell monomers in a plurality of said metal connecting sheets and the said rack body is connected, and is used for a plurality of zinc-nickel cell monomers in the said rack body are in series;
Said binding bolt runs through the top and the bottom of said rack body, be used for the top and the bottom of said rack body are fixed, and a plurality of zinc-nickel cell monomers and the said rack body that will be positioned at said rack body fixes.
Preferably, said additives for overcharge protection device comprises:
Be used to gather the temperature sensor of the temperature signal of said zinc-nickel cell group;
Be connected with said temperature sensor, be used for the temperature comparator that value and preset temperature value with the said temperature signal that collects compare;
Be used for generating first logic controller of open command or close command according to the comparative result of said temperature comparator;
And when comparative result is the value of the said temperature signal that collects during more than or equal to preset temperature value, said first logic controller generates open command; Otherwise said first logic controller generates close command;
Be connected in the said charge protection loop, be used for controlling loop conducting of said charge protection or open circuited first electronic switch according to the control command of said first logical block.
Preferably, said additives for overcharge protection device is a coolant-temperature switch;
Said coolant-temperature switch is arranged between a plurality of zinc-nickel cell monomers in the said zinc-nickel cell group;
When the temperature of said zinc-nickel cell group during more than or equal to preset temperature value, said coolant-temperature switch breaks off;
When the temperature of said zinc-nickel cell group during less than preset temperature value, said coolant-temperature switch is closed.
Preferably, said overdischarge protector comprises:
Be connected with the both positive and negative polarity of a zinc-nickel cell monomer in a plurality of zinc-nickel cell monomers respectively, be used for gathering a plurality of voltage sensors of the voltage between each zinc-nickel cell monomer both positive and negative polarity of a plurality of zinc-nickel cell monomers;
Be connected with a plurality of said voltage sensors, and be used for voltage comparator that the voltage between each the zinc-nickel cell monomer both positive and negative polarity that collects is compared with reference voltage respectively;
Be connected with said voltage comparator, and be used for generating second logic controller of open command or close command according to the comparative result of said voltage comparator;
And when comparative result is the voltage of at least one zinc-nickel cell monomer during smaller or equal to reference voltage, said second logic controller generates open command; Otherwise said second logic controller generates close command;
Be connected in the said discharge prevention loop, be used for controlling second electronic switch of said discharge loop disconnection or conducting according to the control command that said second logic controller sends.
Visible by above technical scheme, this power system of electric automobile that the application embodiment provides is owing to be in series with the 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 the batteries charging process, in case the situation that overcharging appears in the zinc-nickel cell monomer; The additives for overcharge protection device will break off the charge protection loop; Stop charging, and in the discharge process of battery pack, in case the situation of overdischarge appears in the zinc-nickel cell monomer; Overdischarge protector will break off the discharge prevention loop so, stops discharge.
Therefore; This power system of electric automobile that the application embodiment provides can avoid the zinc-nickel cell group to overcharge and the situation of overdischarge takes place, and then makes that the state of zinc-nickel cell group is more stable; Prolonged the service life of battery, the performance of the battery-driven car that also improves.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the application, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the power system of electric automobile that Fig. 1 provides for the application embodiment;
The plan structure scheme drawing of the mounting bracket that Fig. 2 provides for the application embodiment;
The side-looking structural representation of the mounting bracket that Fig. 3 provides for the application embodiment;
Plan structure scheme drawing after two mounting brackets that Fig. 4 provides for the application embodiment connect;
Side-looking structural representation after two mounting brackets that Fig. 5 provides for the application embodiment connect;
The structural representation of a kind of additives for overcharge protection device that Fig. 6 provides for the application embodiment;
The structural representation of the another kind of additives for overcharge protection device that Fig. 7 provides for the application embodiment;
The structural representation of a kind of overdischarge protector that Fig. 8 provides for the application embodiment.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better; To combine the accompanying drawing among the application embodiment below; Technical scheme among the application embodiment is carried out clear, intactly description; Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the 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 application embodiment.
In the application embodiment, battery-driven car is provided with motor 1 and electric machine control system 2, and motor 1 is used to drive the wheel movement of battery-driven car as actuating device, for battery-driven car provides power.
When battery-driven car charges, adopt charger usually, as shown in Figure 1,3 is charger among the figure, the main effect of charger 3 is that commercial power is carried out being input in the battery pack on the battery-driven car after transformation, rectification and the filtering, and battery pack is charged.
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 a plurality of zinc-nickel cells in the application embodiment, and as required, can a plurality of zinc-nickel cell groups 4 be cascaded.
For ease zinc-nickel cell group 4 is securely fixed on the battery-driven car, in the application embodiment, a plurality of zinc-nickel cell groups 4 are installed in mounting bracket inside, and then mounting bracket is fixed on the battery-driven car.
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; Be used for supplying power, carry out takeoff output, and then drive the battery-driven car motion so that electric machine control system 2 can be controlled motor to motor 1 and electric machine control system 2.
Can be provided with two charging terminals on the I of charge protection loop, when charging, two charging terminals can be connected with charger 3, and then charge to zinc-nickel cell group 4 like this.
In addition; As shown in Figure 1, additives for overcharge protection device 5 is connected among 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; Can detect zinc-nickel cell group 4 temperature inside of forming by a plurality of zinc-nickel cell monomers; When the some zinc-nickel cell monomers of zinc-nickel cell group 4 in-to-ins overcharge, will produce heat like this, cause the temperature build-up of zinc-nickel cell group 4.In addition; When the detected temperatures that has served as charge protection device 5 is greater than or equal to preset temperature; Can control the charge protection loop and break off, and when detected temperatures is lower than preset temperature, can keep the I conducting of charge protection loop; Therefore can avoid when charging the situation that overcharging appears in the zinc-nickel cell monomer in the zinc-nickel cell group 4.
As shown in Figure 1; Overdischarge protector 6 is connected among the discharge prevention loop II of zinc-nickel cell group 4; And the both positive and negative polarity of each the zinc-nickel cell monomer in overdischarge protector 6 and the zinc-nickel cell group 4 all is connected, and overdischarge protector 6 just can be gathered the voltage of each zinc-nickel cell monomer like this.
In addition; The voltage and the reference voltage value of each zinc-nickel cell monomer that overdischarge protector 6 also will collect compare; When the voltage of any one zinc-nickel cell monomer is less than or equal to reference voltage; Crossing point protection device 6 will break off discharge prevention loop II, and then can avoid occurring the situation that overdischarge appears in zinc-nickel cell group 4 interior some zinc-nickel cell monomers.
According to above description, in this power system of electric automobile that the application embodiment provides, owing on the charge protection loop of battery pack, be in series with the additives for overcharge protection device; The discharge prevention loop of battery pack is provided with overdischarge protector, so in the batteries charging process, in case the situation that overcharging appears in the zinc-nickel cell monomer; The additives for overcharge protection device will break off the charge protection loop; Stop charging, and in the discharge process of battery pack, in case the situation of overdischarge appears in the zinc-nickel cell monomer; Overdischarge protector will break off the discharge prevention loop so, stops discharge.
Therefore; This power system of electric automobile that the application embodiment provides can avoid the zinc-nickel cell group to overcharge and the situation of overdischarge takes place, and then makes that the state of zinc-nickel cell group is more stable; Prolonged the service life of battery, the performance of the battery-driven car that also improves.
Embodiment two:
The plan structure scheme drawing of the mounting bracket that Fig. 2 provides for the application embodiment.The side-looking structural representation of the mounting bracket that Fig. 3 provides for the application embodiment.
As shown in Figures 2 and 3, this mounting bracket comprises: a plurality of rack body 71, a plurality of metal connecting sheet (not shown), dovetail shaped fastener 73 and binding bolt 74, wherein:
Each rack body 71 all is made up of top 711 and bottom 712; The top 711 of rack body 71 is interlocked with bottom 712 and is in the same place; And also be provided with a plurality of spaces that hold the zinc-nickel cell monomer in rack body 71 inside, as shown in Figure 3,8 is the zinc-nickel cell monomer among the figure.The effect of a plurality of metal connecting sheets is that a plurality of zinc-nickel cell monomers 8 are in series.
As shown in Figures 2 and 3; On the top of rack body 71 711 and bottom 712, be provided with through hole 75; In the through hole 75 of 71 tops 711 of rack body shown in binding bolt 74 can be through and bottom 712, the top 711 with said rack body 71 is fixed together with bottom 712 then.
In addition, for a plurality of rack bodies 71 conveniently are fixed together, as shown in Figure 2; In the application embodiment; 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 promptly groove 76 is the big young shape in the end; And the position that is provided with of groove 76 can be so that two rack bodies 71 be when being arranged side by side, and the position of the groove 76 on two rack bodies 71 can be relative.
As shown in Figures 2 and 3; When mounted; A plurality of zinc-nickel cell monomers 8 vertically are placed on the bottom 712 of rack body 71, the top 711 with rack body 71 is buckled on the bottom 712 then, again binding bolt 74 is penetrated into opposite side by a side; Can make the bottom 711 of rack body 71 be fixed together, and then zinc-nickel cell monomer 8 is fixed in the rack body 71 with top 712.
Plan structure scheme drawing after two mounting brackets that Fig. 4 provides for the application embodiment connect.Side-looking structural representation after two mounting brackets that Fig. 5 provides for the application embodiment connect.
In addition,, can also a plurality of zinc-nickel cell groups 4 be put together as required, can a plurality of rack bodies 71 be linked together through dovetail shaped fastener 73 like Fig. 4 and shown in Figure 5.So only need mounting bracket is fixed on the battery-driven car, can realize the zinc-nickel cell group is fixedly secured on battery-driven car.
Embodiment three:
The structural representation of a kind of additives for overcharge protection device that Fig. 6 provides for the application embodiment.
As shown in Figure 6, this additives for overcharge protection device 5 can comprise: temperature sensor 51, temperature comparing unit 52, first logic controller 53 and first electronic switch 54.
In the process of charging normal; When the zinc-nickel cell monomer in the zinc-nickel cell group 4 does not overcharge situation; The bulk temperature of zinc-nickel cell group 4 is more steady; And, will cause the temperature build-up of whole zinc-nickel cell group 4 so in case the situation of overcharging appears in some zinc-nickel cell monomers, so being set in zinc-nickel cell group 4, a temperature sensor 51 gets final product.In the application embodiment, temperature sensor 51 can be common temperature sensor.
In addition, in other embodiment of the application, in order better each zinc-nickel cell monomer to be detected, can also be provided with a temperature sensor 51 by each zinc-nickel cell monomer, temperature sensor 51 is used to gather temperature on each zinc-nickel cell monomer.Because each is provided with temperature sensor 51 on each zinc-nickel cell monomer, the situation of overcharging whether occurs so can detect the zinc-nickel cell monomer more rapidly and accurately.
First logical block 53 is used for generating control command according to the comparative result of temperature comparing unit 52, and control command is sent to first electronic switch 54.
Here control command has two kinds: open command and close command, and when comparative result is the value of the said temperature signal that collects during more than or equal to preset temperature value, first logic controller 53 generates open command; Otherwise first logic controller 53 generates close command.
First electronic switch 54 is connected among the charge protection loop I of zinc-nickel cell group 4, and first electronic switch 54 can break off or closure according to the control command of first logical block 53.
Therefore, in the application embodiment, when situation appears overcharging in certain the zinc-nickel cell monomer in the zinc-nickel cell group 4; Temperature sensor 51 will detect the temperature signal of whole zinc-nickel cell group 4; And then this temperature signal and preset temperature value compared, when the value of the temperature signal that collects during more than or equal to preset temperature value, first logical block 53 will generate open command; Controlling first electronic switch 54 breaks off; And then charge protection loop I broken off, can stop to charge, and then avoid causing influencing the problem of battery life owing to overcharging to zinc-nickel cell group 4.
Embodiment four:
In a last embodiment; The additives for overcharge protection device comprises: temperature sensor 51, temperature comparing unit 52, first logic controller 53 and first electronic switch 54; This design can cause circuit structure complicated, not only cause cost to increase, and difficulty is bigger 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 application embodiment.
In the application embodiment, the additives for overcharge protection device adopts coolant-temperature switch to realize.
As shown in Figure 7; 55 is coolant-temperature switch, and coolant-temperature switch 55 is connected among the I of charge protection loop, and the position of coolant-temperature switch 55 can be arranged in the zinc-nickel cell group 4; Be used to gather the temperature of zinc-nickel cell group 4; And when the temperature of zinc-nickel cell group 4 surpasses preset temperature value, coolant-temperature switch 55 will break off, and then make charge protection loop I break off.
In addition; Equally in order accurately to detect the temperature conditions of each zinc-nickel cell monomer in the zinc-nickel cell group 4; In other embodiment of the application; Coolant-temperature switch 55 can be provided with a plurality of, and a plurality of coolant-temperature switchs 55 are separately positioned on the different zinc-nickel cell monomers, and a plurality of coolant-temperature switch 55 is in series.In addition, a plurality of coolant-temperature switchs 55 after the series connection directly are connected among the I of charge protection loop.
Like this; When some zinc-nickel cell monomers cause temperature build-up owing to overcharging; To break off with this corresponding coolant-temperature switch 55 in zinc-nickel cell monomer position, equally can be so that charge protection loop I break off, can avoid causing influencing the problem of battery life owing to overcharging.
Embodiment five:
The structural representation of a kind of overdischarge protector that Fig. 8 provides for the application embodiment.
As shown in Figure 8, this overdischarge protector 6 comprises: voltage sensor 61, voltage comparator 62, second logic controller 63 and second electronic switch 64.
Each voltage sensor 61 is connected with the both positive and negative polarity of a zinc-nickel cell monomer in the zinc-nickel cell group 4 respectively; And each zinc-nickel cell monomer all is connected with a voltage sensor 61 in the zinc-nickel cell group 4, and voltage sensor 61 is used for the voltage between the zinc-nickel cell monomer both positive and negative polarity.
When zinc-nickel cell discharged, the voltage of each zinc-nickel cell monomer can reduce along with discharge process, therefore through detecting the voltage condition of zinc-nickel cell monomer, just can judge whether the zinc-nickel cell monomer situation of overdischarge occurs.
Voltage comparator 62 is connected with voltage sensor 61,, be used for the voltage between each the zinc-nickel cell monomer both positive and negative polarity that collects is compared with reference voltage respectively, and obtain judged result.
Second logic controller 63 is used for generating control command according to the judged result of voltage comparator 62, and control command is sent to second electronic switch 64;
Here control command has two kinds: open command and close command, and when judged result is the voltage of at least one zinc-nickel cell monomer during smaller or equal to reference voltage, second logic controller 63 generates open command; Otherwise second logic controller 63 generates close command;
Second electronic switch 64 is connected in the said discharge prevention loop, is used for breaking off or closure according to the control command that said second logic controller sends.
Therefore, in the application embodiment, when over-discharge situation appears in certain the zinc-nickel cell monomer in the 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 that collects during smaller or equal to reference voltage; Second logical block 63 will generate open command; Control second electronic switch 64 and break off, and then discharge prevention loop II is broken off, stop zinc-nickel cell group 4 and export to motor 1; Promptly stop the discharge process of zinc-nickel cell group 4, and then avoid causing influencing the problem of battery life owing to overdischarge.
In sum, this power system of electric automobile that the application embodiment provides is owing to be in series with the 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 the batteries charging process, in case the situation that overcharging appears in the zinc-nickel cell monomer; The additives for overcharge protection device will break off the charge protection loop; Stop charging, and in the discharge process of battery pack, in case the situation of overdischarge appears in the zinc-nickel cell monomer; Overdischarge protector will break off the discharge prevention loop so, stops discharge.
Therefore; This power system of electric automobile that the application embodiment provides can avoid the zinc-nickel cell group to overcharge and the situation of overdischarge takes place, and then makes that the state of zinc-nickel cell group is more stable; Prolonged the service life of battery, the performance of the battery-driven car that also improves.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. power system of electric automobile, battery-driven car is provided with motor and electric machine control system, it is characterized in that, and this power system of electric automobile comprises:
Mounting bracket, zinc-nickel cell group, additives for overcharge protection device and overdischarge protector, wherein:
Said zinc-nickel cell group is formed by a plurality of zinc-nickel cells are monomer series-connected, and it is inner that said zinc-nickel cell group is fastened on said mounting bracket;
Said mounting bracket is installed on said battery-driven car;
Said zinc-nickel cell group is provided with charge protection loop, discharge prevention loop, and wherein: said discharge prevention loop is connected with said motor, electric machine control system;
Said additives for overcharge protection device is connected in the charge protection loop of said zinc-nickel cell group, and said additives for overcharge protection device detects the temperature of said zinc-nickel cell group, and controls the conducting or the disconnection in said charge protection loop according to detected temperature;
Said overdischarge protector is connected in the discharge prevention loop of said zinc-nickel cell group; Said overdischarge protector is connected with the both positive and negative polarity of a plurality of zinc-nickel cell monomers respectively; Gather the voltage of each zinc-nickel cell monomer, and according to the conducting or the disconnection in the said discharge prevention of the voltage control of being gathered loop.
2. power system of electric automobile according to claim 1 is characterized in that, said mounting bracket comprises: a plurality of rack bodies, a plurality of metal connecting sheet, dovetail shaped fastener and binding bolt, wherein:
Said rack body is made up of top and bottom, and in said rack body, is provided with a plurality of spaces that hold the zinc-nickel cell monomer;
The side of said rack body is provided with groove, and the A/F of said groove is less than the width of bottom, and the groove location of adjacent two said rack bodies is relative;
Said dovetail shaped fastener is fixed in the groove on adjacent two said rack bodies, is used for adjacent two said rack bodies are fixed together;
The both positive and negative polarity of a plurality of zinc-nickel cell monomers in a plurality of said metal connecting sheets and the said rack body is connected, and is used for a plurality of zinc-nickel cell monomers in the said rack body are in series;
Said binding bolt runs through the top and the bottom of said rack body, be used for the top and the bottom of said rack body are fixed, and a plurality of zinc-nickel cell monomers and the said rack body that will be positioned at said rack body fixes.
3. power system of electric automobile according to claim 1 is characterized in that, said additives for overcharge protection device comprises:
Be used to gather the temperature sensor of the temperature signal of said zinc-nickel cell group;
Be connected with said temperature sensor, be used for the temperature comparator that value and preset temperature value with the said temperature signal that collects compare;
Be used for generating first logic controller of open command or close command according to the comparative result of said temperature comparator;
And when comparative result is the value of the said temperature signal that collects during more than or equal to preset temperature value, said first logic controller generates open command; Otherwise said first logic controller generates close command;
Be connected in the said charge protection loop, be used for controlling loop conducting of said charge protection or open circuited first electronic switch according to the control command of said first logical block.
4. power system of electric automobile according to claim 1 is characterized in that, said additives for overcharge protection device is a coolant-temperature switch;
Said coolant-temperature switch is arranged between a plurality of zinc-nickel cell monomers in the said zinc-nickel cell group;
When the temperature of said zinc-nickel cell group during more than or equal to preset temperature value, said coolant-temperature switch breaks off;
When the temperature of said zinc-nickel cell group during less than preset temperature value, said coolant-temperature switch is closed.
5. power system of electric automobile according to claim 1 is characterized in that, said overdischarge protector comprises:
Be connected with the both positive and negative polarity of a zinc-nickel cell monomer in a plurality of zinc-nickel cell monomers respectively, be used for gathering a plurality of voltage sensors of the voltage between each zinc-nickel cell monomer both positive and negative polarity of a plurality of zinc-nickel cell monomers;
Be connected with a plurality of said voltage sensors, and be used for voltage comparator that the voltage between each the zinc-nickel cell monomer both positive and negative polarity that collects is compared with reference voltage respectively;
Be connected with said voltage comparator, and be used for generating second logic controller of open command or close command according to the comparative result of said voltage comparator;
And when comparative result is the voltage of at least one zinc-nickel cell monomer during smaller or equal to reference voltage, said second logic controller generates open command; Otherwise said second logic controller generates close command;
Be connected in the said discharge prevention loop, be used for controlling second electronic switch of said discharge loop disconnection or conducting according to the control command that said second logic controller sends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220131205XU CN202507942U (en) | 2012-03-30 | 2012-03-30 | Power system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220131205XU CN202507942U (en) | 2012-03-30 | 2012-03-30 | Power system of electric vehicle |
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| CN202507942U true CN202507942U (en) | 2012-10-31 |
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| CN201220131205XU Withdrawn - After Issue CN202507942U (en) | 2012-03-30 | 2012-03-30 | Power system of electric vehicle |
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| CN (1) | CN202507942U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616143A (en) * | 2012-03-30 | 2012-08-01 | 广东博特动力能源有限公司 | Power system for electrombile |
| CN103256162A (en) * | 2013-05-21 | 2013-08-21 | 广东博特动力能源有限公司 | Fuel engine start-up system |
| CN107571744A (en) * | 2016-07-05 | 2018-01-12 | 现代自动车株式会社 | For preventing the device to overcharge of the battery in energy-conserving and environment-protective vehicle |
| 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 |
-
2012
- 2012-03-30 CN CN201220131205XU patent/CN202507942U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616143A (en) * | 2012-03-30 | 2012-08-01 | 广东博特动力能源有限公司 | Power system for electrombile |
| CN102616143B (en) * | 2012-03-30 | 2015-05-13 | 广东博特动力能源有限公司 | Power system for electromobile |
| CN103256162A (en) * | 2013-05-21 | 2013-08-21 | 广东博特动力能源有限公司 | Fuel engine start-up system |
| CN107571744A (en) * | 2016-07-05 | 2018-01-12 | 现代自动车株式会社 | For preventing the device to overcharge of the battery in energy-conserving and environment-protective vehicle |
| CN107571744B (en) * | 2016-07-05 | 2022-03-18 | 现代自动车株式会社 | Apparatus for preventing overcharge of battery in energy-saving and environment-friendly vehicle |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20150513 |
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| RGAV | Abandon patent right to avoid regrant |