CN202557315U

CN202557315U - Range-extender device for electric automobiles

Info

Publication number: CN202557315U
Application number: CN2012202591430U
Authority: CN
Inventors: 杨世春; 郭斌; 靳胜付; 汪冲; 李明; 曹耀光; 崔海港
Original assignee: Beihang University
Current assignee: Beihang University
Priority date: 2012-06-01
Filing date: 2012-06-01
Publication date: 2012-11-28
Anticipated expiration: 2022-06-01

Abstract

The utility model provides a range-extender device for electric automobiles and belongs to the technical field of dynamic drive. The range-extender device comprises an engine, a torsion damper and a generator. A flywheel of the engine is mechanically connected with a driven piece of the torsion damper, and a driven disk hub of the torsion damper is mechanically connected with an input shaft of the generator. The torsion damper is obtained through modification based on a dry clutch driven disc assembly, and a wave spring and a friction plate of the dry clutch driven disc are removed. By arranging the range-extender device in the electric automobiles, a driving range of the electric automobiles can be extended effectively and cost of the electric automobiles does not increase much so that popularized use of the electric automobiles is facilitated. Meanwhile, the torsion damper is arranged in the range-extender device so that sympathetic vibration of a drive system of the range-extender device is avoided, shock is buffered, noise is reduced and service life of the range-extender device is prolonged.

Description

A kind of used for electric vehicle distance increasing unit device

Technical field

The utility model belongs to the motorized motions technical field, relates to a kind of used for electric vehicle distance increasing unit device, is specifically related to a kind of distance increasing unit device that uses torsional vibration damper.

Background technology

Along with the orthodox car industrial expansion, oil resources gradually weary, the air quality of plaque go from bad to worse.Under these circumstances, have obviously energy-conservation and electronlmobil environment-friendly advantage and become competitively hot of research and development of each big automobile vendor and scientific research institution in recent years.Electronlmobil is considered to one of effective way that solves energy shortage problem and problem of environmental pollution.

But the present stage development of electronlmobil still is faced with several of main problems.The one, continual mileage is short.On the one hand, because the restriction of battery technology, the continual mileage of most of pure electric automobiles is the 100-200 kilometer, and is Theoretical Calculation or stand test gained, in actual operating mode, is difficult to realize; On the other hand, the charging infrastructure construction is still far from perfect, and makes promoting the use of of pure electric automobile receive very big restriction.The 2nd, the electronlmobil cost is high, and the topmost influence factor of cost is exactly battery, and the continual mileage that improve pure electric automobile just must adopt the storage battery of High Performance and capacity and then the further raising of the cost of electronlmobil.This has just formed the paradox of mileage and cost, improves mileage and will increase cost, makes the pure electric automobile slower development; Just at this moment; Stroke-increasing electric automobile arises at the historic moment, and through on pure electric automobile, increasing the small-sized distance increasing unit of a cover, has effectively prolonged the continual mileage of pure electric automobile; Effectively limited simultaneously the increase of cost again, and distance increasing unit also becomes another research focus of electronlmobil field.At present, what use was maximum in distance increasing unit is small-sized piston formula driving engine, and piston engine is because reciprocating motion of the pistons; Takeoff output has cyclic fluctuation; Simultaneously, in the takeoff output process, can produce torsion oscillations, cause resonance of distance increasing unit power system or premature fatigue to destroy easily.

Summary of the invention

Problem to the prior art existence; The utility model proposes a kind of distance increasing unit device that is used for electronlmobil, through in pure electric automobile, installing the distance increasing unit device additional, effectively prolongs the continual mileage of vehicle; Make the cost of car load be unlikely to increase too much again, help promoting the use of of electronlmobil.Simultaneously, in the distance increasing unit device, increase torsional vibration damper, avoid the resonance of distance increasing unit device driving system, relax and impact, reduce noise, improve the life-span of distance increasing unit device.

The utility model proposes a kind of used for electric vehicle distance increasing unit device, and described distance increasing unit device comprises driving engine, torsional vibration damper, electrical generator; The driven disc mechanical connection of the engine flywheel of driving engine and torsional vibration damper; The input shaft mechanical connection of the clutch plate hub of torsional vibration damper and electrical generator.Described torsional vibration damper is to make amendment on the basis in the dry type clutch clutch drived disk assy to obtain; Remove wavy spring and friction lining in the dry type clutch clutch drived disk assy; Simultaneously, strengthen the size of driven disc, keep the original parts of remaining structure in the dry type clutch clutch drived disk assy.

The advantage of the utility model is:

1, the utility model proposes a kind of used for electric vehicle distance increasing unit device, in pure electric automobile, has introduced back-up power source, has improved the continual mileage of electronlmobil greatly, has effectively limited the increase of vehicle cost simultaneously again;

2, the utility model proposes a kind of used for electric vehicle distance increasing unit device, and engine operating condition is single, and engine working point is optimized, and has improved efficient, has reduced discharging.

3, the utility model proposes a kind of used for electric vehicle distance increasing unit device, in power system, has used torsional vibration damper, has reduced the fluctuation in the power transmission process; Avoid the resonance of distance increasing unit device driving system; Relax and impact, reduce noise, improve the life-span of distance increasing unit device.

4, the utility model proposes a kind of used for electric vehicle distance increasing unit device; The torsional vibration damper that uses; Through wavy spring in the orthodox car dry type clutch clutch drived disk assy and friction lining are removed acquisition, greatly shortened time-to-market, reduced the cost of system development.

5, the utility model proposes a kind of used for electric vehicle distance increasing unit device, can solve the refrigeration and the heating problem of electronlmobil, and can be used for the power supply of urgent occasion.

Description of drawings

Fig. 1: the structure diagram of a kind of distance increasing unit device that the utility model proposes;

Fig. 2: the structural representation of a kind of distance increasing unit device that the utility model proposes;

Fig. 3: the structural representation of dry type clutch clutch drived disk assy in the prior art;

Fig. 4: the structural representation of the torsional vibration damper after improving in the utility model.

Among the figure: the 1-driving engine; The 2-engine flywheel; The 3-torsional vibration damper; The 4-electrical generator;

The 5-friction lining; The 6-wavy spring; The 7-clutch plate hub; The 8-driven disc.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

The utility model proposes a kind of used for electric vehicle distance increasing unit device, and is as shown in Figure 1, mainly comprises driving engine 1, torsional vibration damper 3, electrical generator 4.

Described driving engine 1 is a traditional combustion engine, like spark ignition engine, diesel engine or other engine fuels, is the major impetus source of distance increasing unit device, and is as shown in Figure 2, the engine flywheel 2 of driving engine 1 and the driven disc mechanical connection of torsional vibration damper 3.

The power that described torsional vibration damper 3 transmits driving engine 1 is given electrical generator 4, the driven disc 8 of torsional vibration damper 3 and engine flywheel 2 mechanical connections of driving engine 1, the clutch plate hub 7 of torsional vibration damper 3 and the input shaft mechanical connection of electrical generator 4.

The structure of traditional dry type clutch clutch drived disk assy is as shown in Figure 3; Comprise parts such as friction lining 5, wavy spring 6, driven disc 8, damper spring, damping disk(-isc), vibration damping friction lining, locating dowel pin and clutch plate hub 8 in the structure of dry type clutch clutch drived disk assy, specifically as shown in Figure 3.Torsional vibration damper 3 in the utility model is to make amendment on the basis in orthodox car dry type clutch clutch drived disk assy to obtain; Remove wavy spring 6 and friction lining 5 in the orthodox car clutch driven disc assembly; Strengthen the size of driven disc 8, keep the original parts of remaining structure in the orthodox car clutch driven disc assembly, comprise damper spring, damping disk(-isc), vibration damping friction lining, locating dowel pin, clutch plate hub 8 etc.; Its structure is specifically as shown in Figure 4; Because these parts all are existing ripe parts, and production technology, equipment, mould etc. all are existing ripe, therefore; Can greatly shorten the time-to-market of torsional vibration damper, reduce the cost of development of distance increasing unit device.

The utility model provides a kind of used for electric vehicle distance increasing unit device; Can be used on the stroke-increasing electric automobile; Only need to get final product to motor controller, do not have mechanical connection with wheel through electrical generator output line cable connection, can be according to the actual parts deployment scenarios of electronlmobil; Carry out mounting arrangements, so mounting arrangements is flexible.

Described torsional vibration damper 3 adopts vibration-proof structure and mode in the orthodox car dry type clutch clutch drived disk assy, has reduced the fluctuation in the power transmission process; Avoid the resonance of distance increasing unit device driving system; Relax and impact, reduce noise, the life-span that can improve the distance increasing unit device.

Described electrical generator 4 is used for the mechanical energy that derives from driving engine 1 is converted into electric energy output.

The utility model proposes a kind of used for electric vehicle distance increasing unit device, is used for pure electric automobile, can effectively prolong the continual mileage of vehicle, simultaneously, makes the cost of car load be unlikely to increase too much again, helps promoting the use of of electronlmobil.

The utility model proposes a kind of used for electric vehicle distance increasing unit device, and driving engine 1 is a traditional combustion engine, changes the chemical power of fuel into mechanical energy output; This mechanical energy is delivered to torsional vibration damper 2 then; Behind torsional vibration damper 2 vibration dampings, smooth transfer is given electrical generator 3, and the mechanical energy of torsional vibration damper 2 being transmitted through electrical generator 3 is transformed into electric energy output; This electric energy then can be supplied to electronlmobil, drives electric automobile during traveling.

Claims

1. used for electric vehicle distance increasing unit device, it is characterized in that: described distance increasing unit device comprises driving engine, torsional vibration damper, electrical generator; The driven disc mechanical connection of the flywheel of driving engine and torsional vibration damper; The input shaft mechanical connection of the clutch plate hub of torsional vibration damper and electrical generator.

2. a kind of used for electric vehicle distance increasing unit device according to claim 1; It is characterized in that: described torsional vibration damper is to make amendment on the basis in the dry type clutch clutch drived disk assy to obtain; Remove wavy spring and friction lining in the dry type clutch clutch drived disk assy; Strengthen the size of driven disc, keep the original parts of remaining structure in the dry type clutch clutch drived disk assy.

3. a kind of used for electric vehicle distance increasing unit device according to claim 1, it is characterized in that: described driving engine is a combustion engine.

4. a kind of used for electric vehicle distance increasing unit device according to claim 3 is characterized in that: described driving engine is spark ignition engine, diesel engine or other engine fuels.