CN205050957U - Novel power battery system - Google Patents

Abstract

The utility model relates to an automotive power field particularly, relates to a novel power battery system. It includes the first machine that charges, second charge machine, first battery package, second battery package, third battery package, a battery management device, the 2nd battery management device and the 3rd battery management device, a battery management device, the 2nd battery management device and third management device are connected with first battery package, second battery package and third battery package respectively, a battery management device and the 2nd battery management device all are connected with the 3rd battery management device, the first machine that charges is connected with first battery package, the second charges the machine and wraps with the second battery and be connected. The utility model discloses can be when arbitrary one battery package damage, other battery packages can also normally be worked, and then do not influence electric automobile's normal driving, the speed of charging has been accelerated.

Description

Novel power battery system

Technical field

The utility model relates to field of automotive power, in particular to a kind of Novel power battery system.

Background technology

Batteries of electric automobile divides two large class, storage battery and fuel cells.

Storage battery is applicable to pure electric automobile, comprises lead acid accumulator, nickel radical battery, sodium-sulphur battery, serondary lithium battery, air cell etc.

Fuel cell is exclusively used in fuel cell electric vehicle, comprises alkaline fuel cell, phosphoric acid fuel cell, molten carbonate fuel cell, Solid Oxide Fuel Cell, Proton Exchange Membrane Fuel Cells, direct methanol fuel cell etc.

Batteries of electric automobile is along with the different and slightly difference of the kind of electric automobile.Only equipping in the pure electric automobile of storage battery, the effect of storage battery is the only power source of automobile driving system.And at equipment conventional engines (or fuel cell) with the hybrid vehicle of storage battery, storage battery both can play the part of the role of automobile driving system main power source, also can serve as the role of auxiliary power source.Visible at low speed with when starting, the role of what storage battery was played the part of is automobile driving system main power source; When full load is accelerated, that serve as is the role of auxiliary power source; Normal travel or slow down, braking time that serve as is the role of storage power.

No matter be storage battery or fuel cell, in electric automobile, all need repeatedly to charge, but the charging rate of existing batteries of electric automobile is comparatively slow, being full of electricity often needs to reach several hours, even tens hours; Further, in present electric automobile, after cell damage, just make electric automobile cannot normal driving.

Utility model content

The purpose of this utility model is to provide a kind of Novel power battery system, to solve the above problems.

Embodiments provides a kind of Novel power battery system of the present utility model, comprise the first charger, the second charger, the first power brick, the second power brick, the 3rd power brick, the first cell managing device, the second cell managing device and the 3rd cell managing device;

Described first cell managing device, described second cell managing device and described 3rd management devices are connected with described first power brick, described second power brick and described 3rd power brick respectively;

Described first cell managing device and described second cell managing device are all connected with described 3rd cell managing device;

Described first charger is connected with described first power brick, for giving described first power brick charging;

Described second charger is connected with described second power brick, for giving described second power brick charging.

Further, described 3rd power brick has been arranged in series the first balancing cell module.

Further, described first balancing cell module is multiple.

Further, described first balancing cell module is lithium battery module.

Further, described first power brick and/or described second power brick have been arranged in series the second balancing cell module.

Further, described first power brick is identical with the quantity of the described second balancing cell module that described second power brick is arranged in series.

Further, described first power brick and described second power brick are lithium battery bag.

Further, described 3rd power brick is capacitor batteries bag.

Further, described 3rd cell managing device is provided with external interface, for being powered to external circuitry by described external interface.

Further, described first charger is connected between described first cell managing device and described 3rd cell managing device;

Described second charger is connected between described second cell managing device and described 3rd cell managing device.

The Novel power battery system that the utility model provides, 3rd power brick is connected with the first power brick and the second power brick, first power brick, the second power brick and the 3rd power brick are independently arranged, and it is parallel with one another, can when any one power brick be damaged, other power brick can also normally work, and then do not affect the normal driving of electric automobile; First power brick and the second power brick are provided with the first charger and the second charger respectively, and two chargers charge respectively, accelerate the speed of charging.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment 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, accompanying drawing in the following describes is execution modes more of the present utility model, 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.

Fig. 1 is the structural representation of Novel power battery system of the present utility model.

Reference numeral:

1: the first charger 2: the first power brick 3: the first cell managing device

4: the three cell managing devices 5: external interface 6: the second cell managing device

7: the second charger 8: the second power brick 9: the second balancing cell modules

10: the three power brick 11: the first balancing cell modules

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearly, carry out clear, complete description by the technical solution of the utility model below.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the utility model is protected.

In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.

In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.

As shown in Figure 1, the utility model provides a kind of Novel power battery system, comprises the first charger 1, second charger 7, first power brick 2, second power brick 8, the 3rd power brick 10, first cell managing device 3, second cell managing device 6 and the 3rd cell managing device 4;

Described first cell managing device 3, described second cell managing device 6 and described 3rd management devices are connected with described first power brick 2, described second power brick 8 and described 3rd power brick 10 respectively;

Described first cell managing device 3 is all connected with described 3rd cell managing device 4 with described second cell managing device 6;

Described first charger 1 is connected with described first power brick 2, charges for giving described first power brick 2;

Described second charger 7 is connected with described second power brick 8, charges for giving described second power brick 8.

First power brick 2, second power brick 8 and the 3rd power brick 10 are independently arranged, be independent of each other when respective use, and then when any one power brick is damaged, the normal work of other power brick can not be had influence on, and then ensure that electric automobile can continue normal driving, only electric automobile need be stopped behind the position of safety, the power brick damaged is changed or keeped in repair.

Such setting, improves the fail safe of driving, decreases the incidence of accident, has effectively ensured the security of the lives and property of driver and conductor.

First power brick 2 is provided with the first charger 1, second power brick 8 is provided with the second charger 7, when charging, first power brick 2 and the second power brick 8 separated, first charger 1 and the second charger 7 charge to respectively the first power brick 2 and the second power brick 8, thus charging rate is doubled.

Such setting, is doubled the charging rate of power brick, saves the time of charging greatly.

All be arranged in parallel between first power brick 2, second power brick 8 and the 3rd power brick 10, when battery system operation, if wherein any one power brick fault, whole battery system still can normally work, and improves the resistance to overturning of battery system.

The independent service condition to the first power brick 2 of first cell managing device 3 and charge condition control, i.e. the control of the opening and closing of the power supply state of the first power brick 2, and charge after sky electricity, disconnect the control of the first charger 1 after being full of electricity.

The independent service condition to the second power brick 8 of second cell managing device 6 and charge condition control.

3rd cell managing device 4 controls the service condition of the 3rd power brick 10 and charge condition, and the first cell managing device 3 is all connected with the 3rd cell managing device 4 with the second cell managing device 6, by the 3rd cell managing device 4 as maincenter, do the co-ordination of integral battery door behaviour in service.

Be preferred embodiment that described 3rd power brick 10 has been arranged in series the first balancing cell module 11.

When electricity or the undertension of battery, the first balancing cell module 11 can be arranged in series in the 3rd power brick 10, increase total electricity of the 3rd power brick 10, and then make the 3rd power brick 10 more durable.

Be preferred embodiment that described first balancing cell module 11 is multiple.

The quantity of the first balancing cell module 11 can be one, also can be multiple, as long as it can meet the demand of electricity or voltage, and can have enough spatial accommodations on electric automobile.

Be preferred embodiment that described first balancing cell module 11 is lithium battery module.

Lithium battery is a class is negative material, the battery using non-aqueous electrolytic solution by lithium metal or lithium alloy.Because the chemical characteristic of lithium metal is very active, make the processing of lithium metal, preservation, use, very high to environmental requirement.So lithium battery in initial, is not applied for a long time.Along with the development of science and technology, present lithium battery becomes main flow.

Lithium battery is broadly divided into two classes: lithium metal battery and lithium ion battery.The lithium of lithium ion battery not containing metallic state, and can charge.Rechargeable battery the 5th generation product lithium metal battery 1996 be born, its fail safe, specific capacity, self-discharge rate and the ratio of performance to price are all better than lithium ion battery.Because the high-tech of himself requires restriction, only has now the company of a few countries at this lithium metal battery of production.

Lithium battery is used to have a lot of advantages, as:

1. energy comparison is high.Having high storage power density, reach 460-600Wh/kg, is about 6-7 times of lead-acid battery;

2. long service life, useful life can reach more than 6 years, and LiFePO 4 is battery 1C (100%DOD) discharge and recharge of positive pole, has the record that can use 10000 times;

3. rated voltage high (monomer operating voltage is 3.7V or 3.2V), approximates the series voltage of 3 NI-Gs or nickel-hydrogen chargeable cell, is convenient to composition battery supply group; Voltage by a kind of technology of novel lithium battery voltage regulator, can be adjusted to 3.0V, with the use of applicable small electric apparatus by lithium battery.

4. possess high power endurance, ferrous phosphate lithium ion battery wherein used for electric vehicle can reach the ability of 15-30C discharge and recharge, is convenient to the Acceleration of starting of high strength;

5. self-discharge rate is very low, and this is one of the most outstanding superiority of this battery, generally can accomplish below 1%/moon, less than 1/20 of Ni-MH battery;

6. lightweight, under same volume, weight is about the 1/6-1/5 of plumbic acid product;

7. high/low temperature strong adaptability, can at-20 DEG C--use under the environment of 60 DEG C, through technologic process, can use under-45 DEG C of environment;

8. environmental protection, no matter produce, use and scrap, not containing, do not produce poisonous and harmful heavy metallic element and the materials such as any lead, mercury, cadmium yet.

9. produce and substantially do not consume water, concerning China of lack of water, very favourable.

In summary it can be seen, use lithium battery to have a lot of advantages, effectively can increase the useful life of electric automobile, and reduce use cost.

Therefore, in the present embodiment, the first balancing cell module 11 is set to lithium battery module.

Be preferred embodiment that described first power brick 2 and/or described second power brick 8 have been arranged in series the second balancing cell module 9.

First power brick 2 and the second power brick 8 also can carry out balancing cell, and then improve the electricity of the first power brick 2 and the second power brick 8.

First power brick 2 and the second power brick 8 arrange the second balancing cell module 9, and the second balancing cell module 9 also uses lithium battery module.

Be preferred embodiment that described first power brick 2 is identical with the quantity of the described second balancing cell module 9 that described second power brick 8 is arranged in series.

Due to when in use, first power brick 2 and the second power brick 8 symmetry use, therefore, when first power brick 2 and the second power brick 8 are arranged in series the second balancing cell module 9, first power brick 2 is identical with the number needs of the second balancing cell module 9 that the second power brick 8 is connected, to avoid occurring weighing while light situation, and then have influence on the normal traveling of electric automobile.

Be preferred embodiment that described first power brick 2 and described second power brick 8 are lithium battery bag.

First power brick 2 and the second power brick 8 are also set to lithium battery bag, and then the cost of battery can be effectively reduced, and improve the useful life of battery.Also make battery be provided with the advantages such as environmental protection, electric automobile is more received an acclaim.

Be preferred embodiment that described 3rd power brick 10 is capacitor batteries bag.

In fact capacitor batteries is exactly a capacitor, and just because the common capacitor of its Capacity Ratio is much bigger, externally performance is identical with battery, is therefore named " capacitor batteries ", also has and be called " super capacitor ".

Capacitor batteries also has a lot of advantages, and capacitor batteries discharge and recharge is fast, can cushion big current, and then can improve the life-span of integral battery door group.Therefore, in the present embodiment, the 3rd power brick 10 is selected capacitor batteries bag, and then ensure that completing fast and security performance of charging.

Be preferred embodiment that described 3rd cell managing device 4 is provided with external interface 5, for being powered to external circuitry by described external interface 5.

3rd cell managing device 4 arranges external interface 5, by external interface 5, by outer for the power supply in whole battery system defeated, realizes powering to external circuitry.

It is pointed out that the form of external interface 5 has a lot, it can be exported by the form of USB interface, also can be exported by other connecting line, as long as the electricity in battery system can export by it.

Also it is pointed out that the setting position of external interface 5 can be arranged on the 3rd cell managing device 4, also can be arranged on other parts, as long as the electricity in battery system can export by it.

Be preferred embodiment that described first charger 1 is connected between described first cell managing device 3 and described 3rd cell managing device 4;

Described second charger 7 is connected between described second cell managing device 6 and described 3rd cell managing device 4.

First charger 1 is arranged between the first cell managing device 3 and the second cell managing device 6, can be convenient to the control of the first cell managing device 3 to the first charger 1, is also convenient to the control of the 3rd cell managing device 4 to the first cell managing device 3.

In like manner, the second charger 7 is arranged between the second cell managing device 6 and the 3rd cell managing device 4 is also above-mentioned reason.

The Novel power battery system that the utility model provides, 3rd power brick 10 is connected with the first power brick 2 and the second power brick 8, first power brick 2, second power brick 8 and the 3rd power brick 10 are independently arranged, and it is parallel with one another, can when any one power brick be damaged, other power brick can also normally work, and then do not affect the normal driving of electric automobile; First power brick 2 and the second power brick 8 are provided with the first charger 1 respectively and the second charger 7, two chargers charge respectively, accelerate the speed of charging.

Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.

Claims (10)

1. a Novel power battery system, is characterized in that, comprises the first charger, the second charger, the first power brick, the second power brick, the 3rd power brick, the first cell managing device, the second cell managing device and the 3rd cell managing device;

Described first cell managing device, described second cell managing device and described 3rd management devices are connected with described first power brick, described second power brick and described 3rd power brick respectively;

Described first cell managing device and described second cell managing device are all connected with described 3rd cell managing device;

Described first charger is connected with described first power brick, for giving described first power brick charging;

Described second charger is connected with described second power brick, for giving described second power brick charging.

2. Novel power battery system according to claim 1, is characterized in that, described 3rd power brick has been arranged in series the first balancing cell module.

3. Novel power battery system according to claim 2, is characterized in that, described first balancing cell module is multiple.

4. Novel power battery system according to claim 2, is characterized in that, described first balancing cell module is lithium battery module.

5. Novel power battery system according to claim 1, is characterized in that, described first power brick and/or described second power brick have been arranged in series the second balancing cell module.

6. Novel power battery system according to claim 5, is characterized in that, described first power brick is identical with the quantity of the described second balancing cell module that described second power brick is arranged in series.

7. Novel power battery system according to claim 1, is characterized in that, described first power brick and described second power brick are lithium battery bag.

8. Novel power battery system according to claim 1, is characterized in that, described 3rd power brick is capacitor batteries bag.

9. Novel power battery system according to claim 1, is characterized in that, described 3rd cell managing device is provided with external interface, for being powered to external circuitry by described external interface.

10. the Novel power battery system according to any one of claim 1-9, is characterized in that, described first charger is connected between described first cell managing device and described 3rd cell managing device;

Described second charger is connected between described second cell managing device and described 3rd cell managing device.