CN104328818A - Lithium iron phosphate battery type electric excavator - Google Patents
Lithium iron phosphate battery type electric excavator Download PDFInfo
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- CN104328818A CN104328818A CN201410592782.2A CN201410592782A CN104328818A CN 104328818 A CN104328818 A CN 104328818A CN 201410592782 A CN201410592782 A CN 201410592782A CN 104328818 A CN104328818 A CN 104328818A
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- lithium cell
- excavator
- ferric phosphate
- phosphate lithium
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Abstract
The invention provides a lithium iron phosphate battery type electric excavator. An energy system of the excavator comprises a charger, a lithium iron phosphate power supply battery unit, a voltage and frequency changer and a lithium iron phosphate control power supply battery unit, wherein all the components of the energy system are connected through wires, an electric engine of a power output system is connected with a hydraulic pump through a coupler, a connecting disc is fixedly connected to the electric engine and the hydraulic pump, a cooling system comprises a water pump, cooling water pipes, a radiator and a draught fan, and the power output system and the water pump, the water pump and the radiator, as well as the radiator and the power output system are connected through the cooling water pipes. The lithium iron phosphate battery is used, the performance is more reliable and stable, the whole machine has a flexible charging way, the operation cost is low, the noise is low, and the excavator is energy-saving and environment-friendly.
Description
Technical field
The present invention relates to electric excavator manufacturing technology field, specifically a kind of ferric phosphate lithium cell formula electric excavator.
Background technology
Along with oil shortage, fuel price goes up, tail gas pollution is further serious, people use for reducing fuel oil or do not use fuel oil, reduce machine running cost, reduce tail gas to the pollution of environment, in engineering machinery field, the excavator aspect that especially accounting is maximum, develops, develops hybrid excavator or electric excavator, and achieve zero-emission, low noise due to electric excavator, more favored.Current electric excavator mainly contains two kinds, cable type electric excavator, charged electric excavator, and cable type electric excavator needs stube cable to affect by work, mobile inconvenient in work, and displacement also limits to some extent.Charged electric excavator can only select common lead-acid battery in the past, and conventional lead acid battery poor safety performance easily i.e. heating or blast, and the life-span is short namely 1 ~ 1.5 year, has memory effect, the low grade of weight macro-energy density ratio and cannot promoting.Full-fledged along with Novel phosphoric acid lithium iron battery, after electrokinetic cell has selected ferric phosphate lithium cell, the development of battery type electric excavator, the condition of exploitation just possess, and are necessary very much.
Summary of the invention
The object of the present invention is to provide a kind of ferric phosphate lithium cell formula electric excavator, this excavator adopts electric energy motor to replace conventional fuel oil engine output power, ferric phosphate lithium cell is adopted to replace conventional lead acid battery to provide electric power energy, running cost is low, zero-emission, low noise, stable working is reliable.
For achieving the above object, the technical solution used in the present invention is: a kind of ferric phosphate lithium cell formula electric excavator, comprise excavation body, energy resource system, power take-off system is unified cooling system, wherein: described excavation body comprises chassis assembly, revolving dial assembly, driver's cabin assembly and equipment assembly, described excavation body is arranged consistent with known excavator with connected mode, described cooling system comprises water pump, cooling water pipe, radiator and fan, be provided with cooling water pipe between described power output system with described water pump to be connected, be provided with cooling water pipe between described water pump with described radiator to be connected, described radiator has cooling water pipe to be connected with described power output system of establishing.Described energy resource system comprises charger, LiFePO4 electrical source of power battery pack, and varying-voltage frequency converter and LiFePO4 control power-supply battery group, are connected between each parts of described energy resource system by electric wire; Described power output system comprises electric energy motor, terminal pad, shaft coupling and hydraulic pump, and described electric energy motor is connected by shaft coupling with described hydraulic pump, and terminal pad is fixedly connected on electric energy motor and hydraulic pump, and shaft coupling is positioned at terminal pad cavity position place.
Described ferric phosphate lithium cell charging modes has two kinds of modes: be fixed on online charging that described excavation body charges and take off the off-line charging changed again after battery charges separately.
Described ferric phosphate lithium cell comprises electrical source of power battery pack and controls power-supply battery group.
Described charger can control power-supply battery group to described LiFePO4 electrical source of power battery pack and described LiFePO4 and charge simultaneously.
Described electric energy motor is connected by rubber absorbers with between described revolving dial.
Described electric energy motor is that stepless time adjustment controls.
Described water pump is electric water pump.
Described fan is air draught type electric fan.
The invention has the beneficial effects as follows:
1. energy resource system adopts reliable ferric phosphate lithium cell, and it is more reliable and stable that performance compares common batteries.
2. ferric phosphate lithium cell possesses charging modes flexibly, in actual applications more convenient, hommization.
3. adopt electric energy motor to replace traditional fuel engines, running cost is low, zero-emission, low noise, energy-conserving and environment-protective.
4. complete machine structure connection and reasonable arrangement is easy to maintenance, have employed largest battery installing space, ensures the complete machine sustainable operation time.
Accompanying drawing explanation
Fig. 1 is the complete machine structure schematic diagram of ferric phosphate lithium cell formula electric excavator of the present invention.
Fig. 2 is the power supply schematic diagram of the energy resource system of ferric phosphate lithium cell formula electric excavator of the present invention.
Fig. 3 is the power output system structural representation of ferric phosphate lithium cell formula electric excavator of the present invention.
Fig. 4 is the cooling system structure schematic diagram of ferric phosphate lithium cell formula electric excavator of the present invention.
Fig. 5 is the left view of Fig. 4.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 1, ferric phosphate lithium cell formula electric excavator of the present invention, comprises and excavates body 1, energy resource system 2, power output system 3 and cooling system 4, wherein, energy resource system 2, power output system 3 and cooling system 4 are interconnected between two, and are arranged on excavation body 1.Described excavation body 1 comprises chassis assembly 11, revolving dial assembly 12, driver's cabin assembly 13 and equipment assembly 14, and the layout wherein excavating body 1 is consistent with known excavator with connected mode.
As Fig. 1, shown in Fig. 2, described energy resource system 2 comprises charger 21, 640V LiFePO4 electrical source of power battery pack 22, varying-voltage frequency converter 23, 12V/24V LiFePO4 controls power-supply battery group 24 and electric energy motor 25, described charger 21 is positioned at the outer seated position excavating body 1, the left side that 640V LiFePO4 electrical source of power battery pack 22 is positioned at cooling system 4 is placed in revolving dial assembly 12 rearward position, varying-voltage frequency converter 23 is positioned at the dead ahead of cooling system 4, the top of power output system 3, 12V/24V LiFePO4 controls the left front that power-supply battery group 24 is positioned at power output system 3, charger 21 is connected with 640V LiFePO4 electrical source of power battery pack 22, charger 21 also controls power-supply battery group 24 with 12V/24V LiFePO4 and is connected, 640V LiFePO4 electrical source of power battery pack 22 is connected with electric energy motor 25 by varying-voltage frequency converter 23.
As shown in Figure 1, Figure 3, described power output system 3 is positioned at revolving dial assembly 12 front right position place, and be fixedly connected on revolving dial assembly 12 by erection bolt 32 entirety of rubber absorbers 31, described power output system 3 comprises electric energy motor 25, terminal pad 33, shaft coupling 34 and hydraulic pump 35, wherein electric energy motor 25 is connected with shaft coupling 34, shaft coupling 34 is connected with hydraulic pump 35 again, terminal pad 33 is fixedly connected on electric energy motor 25 and hydraulic pump 35, and shaft coupling 34 is positioned at terminal pad 33 cavity position place.
As Fig. 1, Fig. 4, shown in Fig. 5, described cooling system 4 is positioned at the right lateral side position of the rear side revolving dial assembly 12 of power output system 3, described cooling system 4 comprises water pump 40, cooling water pipe 41, radiator 42 and fan 51, the dead astern that radiator 42 is positioned at power output system 3 is fixed on revolving dial assembly 12, water pump 40 is positioned at the position, lower left of radiator 42, fan 51 is fixed on the leftward position of radiator 42, fan 51 is air draught type electric fan, cooling water pipe 41 comprises the cooling water pipe 411 connecting radiator 42 and water pump 40, connect water pump 40 and varying-voltage frequency converter 23, the cooling water pipe 412 of electric energy motor 25 be connected varying-voltage frequency converter 23, the cooling water pipe 413 of electric energy motor 25 and radiator 42.
The operating principle of described ferric phosphate lithium cell formula electric excavator is as follows:
Described energy resource system 2 provides power supply for power output system 3 and cooling system 4, thus drives the everything excavating body 1.Be specially, charger 21 is by connecting outside 380V three phase mains, rectification is direct current is that 640V LiFePO4 electrical source of power battery pack 22 and 12V/24V LiFePO4 control power-supply battery group 24 are charged simultaneously, varying-voltage frequency converter 23 is by the direct current transformation of 640V LiFePO4 electrical source of power battery pack 22, for electric energy motor 25 provides 380V alternating current and then make electric energy motor 25 operate after inversion, electric energy motor 25 runs through the operation that shaft coupling 34 drives hydraulic pump 35, the operation of hydraulic pump 35 drives complete machine hydraulic system, thus drive the everything excavating body 1.In addition, cooling system 4 is air-conditioning, hydraulic oil, voltage transformation controller 23, electric energy motor 25 provide refrigerating function, wherein 12V/24V LiFePO4 controls power-supply battery group 24 for water pump 40 provides power supply, cryogenic liquid in radiator 42 is delivered into the water jacket of voltage transformation controller 23, electric energy motor 25 by water pump 40, flow back to radiator 42 again to cool, form the loop of radiator-cooling water pipe-water pump-cooling water pipe-voltage transformation controller/electric energy motor-cooling water pipe-radiator.By fan 51 air draught, the right lateral cold wind of body 1 will be excavated and suck via radiator 42, and then by the cooling fluid cooling in radiator 42, then by fan 51 dispatch to the left-external side excavating body 1, thus achieve cooling fluid in radiator 42 cooling.
Above-described embodiment is the citing of preferred forms of the present invention; not limiting the scope of the invention; for those skilled in the art, revise in the local of making the present invention in scope of the present invention and be out of shape still in protection scope of the present invention.
Claims (8)
1. a ferric phosphate lithium cell formula electric excavator, comprise excavation body, energy resource system, power take-off system is unified cooling system, wherein: described excavation body comprises chassis assembly, revolving dial assembly, driver's cabin assembly and equipment assembly, described excavation body is arranged consistent with known excavator with connected mode, described cooling system comprises water pump, cooling water pipe, radiator and fan, be provided with cooling water pipe between described power output system with described water pump to be connected, be provided with cooling water pipe between described water pump with described radiator to be connected, described radiator has cooling water pipe to be connected with described power output system of establishing, it is characterized in that, described energy resource system comprises charger, LiFePO4 electrical source of power battery pack, varying-voltage frequency converter and LiFePO4 control power-supply battery group, connected by electric wire between each parts of described energy resource system, described power output system comprises electric energy motor, terminal pad, shaft coupling and hydraulic pump, and described electric energy motor is connected by shaft coupling with described hydraulic pump, and terminal pad is fixedly connected on electric energy motor and hydraulic pump, and shaft coupling is positioned at terminal pad cavity position place.
2. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, it is characterized in that, described ferric phosphate lithium cell charging modes has two kinds of modes: be fixed on online charging that described excavation body charges and take off the off-line charging changed again after battery charges separately.
3. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, is characterized in that, described ferric phosphate lithium cell comprises electrical source of power battery pack and controls power-supply battery group.
4. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, is characterized in that, described charger can control power-supply battery group to described LiFePO4 electrical source of power battery pack and described LiFePO4 and charge simultaneously.
5. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, it is characterized in that, described electric energy motor is connected by rubber absorbers with between described revolving dial.
6. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, is characterized in that, described electric energy motor is that stepless time adjustment controls.
7. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, it is characterized in that, described water pump is electric water pump.
8. ferric phosphate lithium cell formula electric excavator as claimed in claim 1, it is characterized in that, described fan is air draught type electric fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410592782.2A CN104328818A (en) | 2014-10-28 | 2014-10-28 | Lithium iron phosphate battery type electric excavator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410592782.2A CN104328818A (en) | 2014-10-28 | 2014-10-28 | Lithium iron phosphate battery type electric excavator |
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| CN104328818A true CN104328818A (en) | 2015-02-04 |
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| CN201410592782.2A Pending CN104328818A (en) | 2014-10-28 | 2014-10-28 | Lithium iron phosphate battery type electric excavator |
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Cited By (5)
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|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
| CN106480921A (en) * | 2016-11-16 | 2017-03-08 | 杭州蓝力电动科技有限公司 | A kind of heat management system of electronic engineering machinery |
| CN108673468A (en) * | 2018-06-11 | 2018-10-19 | 河南百年融熥实业有限公司 | A kind of factory's multifunctional mobile mechanical arm |
| IT201800004078A1 (en) * | 2018-03-29 | 2019-09-29 | G A P S P A | KIT FOR THE CONVERSION OF AN OPERATING MACHINE |
| IT202100014852A1 (en) * | 2021-06-08 | 2022-12-08 | Cnh Ind Italia Spa | IMPROVED HYDRAULIC ASSEMBLY FOR HYDRAULIC ENERGY RECOVERY SYSTEMS IN WORK VEHICLES |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674877A (en) * | 2015-02-12 | 2015-06-03 | 徐州徐工挖掘机械有限公司 | Electric hydraulic excavator control system |
| CN106480921A (en) * | 2016-11-16 | 2017-03-08 | 杭州蓝力电动科技有限公司 | A kind of heat management system of electronic engineering machinery |
| IT201800004078A1 (en) * | 2018-03-29 | 2019-09-29 | G A P S P A | KIT FOR THE CONVERSION OF AN OPERATING MACHINE |
| WO2019186449A1 (en) * | 2018-03-29 | 2019-10-03 | G.A.P. S.P.A. | Kit for the conversion of a heavy equipment vehicle |
| CN108673468A (en) * | 2018-06-11 | 2018-10-19 | 河南百年融熥实业有限公司 | A kind of factory's multifunctional mobile mechanical arm |
| IT202100014852A1 (en) * | 2021-06-08 | 2022-12-08 | Cnh Ind Italia Spa | IMPROVED HYDRAULIC ASSEMBLY FOR HYDRAULIC ENERGY RECOVERY SYSTEMS IN WORK VEHICLES |
| EP4101993A1 (en) * | 2021-06-08 | 2022-12-14 | CNH Industrial Italia S.p.A. | Improved hydraulic assembly for energy recovery hydraulic systems in work vehicles |
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Application publication date: 20150204 |