CN111106712A

CN111106712A - Range-extending type electric automobile generator structure

Info

Publication number: CN111106712A
Application number: CN201911365631.2A
Authority: CN
Inventors: 王增元; 王长江
Original assignee: Jiangxi Maxwell Technology Co Ltd
Current assignee: Jiangxi Maxwell Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-05-05

Abstract

The invention discloses a range-extended electric automobile generator structure, which comprises a rotor core and a stator core, wherein the rotor core is hermetically bonded on a rotor core support, the center of the rotor core support is connected with an engine shaft through a bolt, the engine shaft is inserted in the center of a shell, and the inner side wall of the shell is connected with the stator core through a bolt. The eccentricity and control accuracy of the rotor and the stator of the rotary transformer are ensured.

Description

Range-extending type electric automobile generator structure

Technical Field

The invention relates to the technical field of generators, in particular to a range-extended electric automobile generator structure.

Background

The new energy electric automobile is divided into a pure electric automobile and a hybrid electric automobile, the pure electric automobile needs to be provided with a battery with a large capacity when reaching a certain endurance mileage, and particularly, the endurance mileage of the electric automobile when running at a high speed is far less than the endurance mileage of a working condition test because the wind resistance and the rolling resistance of a tire are greatly increased when the pure electric automobile runs at a high speed. In addition, at present, charging facilities are imperfect, charging time is long, and mileage anxiety of a driver is a very big problem. The range-extended electric vehicle is used as one of new energy electric vehicles, and the problem of short mileage of the pure electric vehicle is effectively solved through the range extender system. The range extender generally comprises an engine, a generator and a control system thereof, and can charge a power battery of an automobile and directly drive a motor to run.

The generator of the range extender of the conventional range extender is connected with an engine by adopting ① and a friction plate coupling friction or torsion damper to connect the generator with an engine shaft, wherein the defects and disadvantages mainly exist that the vibration and noise are large when the engine is started and stopped, the coupling damper is seriously worn when the engine runs for a long time, and the running imbalance of the damper and the coupling has great influence on the service lives of the engine and the generator;

therefore, the generator structure of the range-extended electric automobile is provided to solve the problems in the prior art, a front end cover and a front bearing of the generator are eliminated, the length of a range extender system is obviously shortened, the weight is reduced, the volume of the generator is reduced, and the requirements of the engine on vibration, rotating speed fluctuation and the like are met.

Disclosure of Invention

The present invention provides a generator structure of an extended range electric vehicle to solve the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an increase form electric automobile generator structure, includes rotor core and stator core, rotor core seal bond is on the rotor core support, rotor core support central point puts and is connected with the engine shaft through the bolt, the engine shaft is pegged graft and is put at casing central point, there is stator core casing inside wall through bolted connection, the stator winding has in the middle of the stator core, stator core is located the rotor core outside, just the casing tip has the stator mounting panel that becomes soon through bolted connection, it has the stator that becomes soon to become soon through bolted connection stator mounting panel tip, rotor core support tip one side is pegged graft and is become the rotor soon, it is corresponding with the stator position that becomes soon to become rotor tip.

Preferably, rotor core support one end joint has the rear end cap, just the tip inboard is inlayed and is had rear end cap assorted bearing.

Preferably, the central bulge of the rear end cover is inserted in the bearing, and the end part of the central bulge of the rear end cover is of a chamfer structure.

Preferably, the end part of the rear end cover extends to the side edge of the shell, and the end part of the rear end cover is connected with the shell through a bolt.

Preferably, the rotary transformer stator mounting plate is of a bending structure, and the rotary transformer stator mounting plate is not in contact with the rotor core.

Preferably, a pressing plate is bonded to the side wall of the rotor core support and is located on the outer side of the rotary transformer.

Compared with the prior art, the invention has the beneficial effects that:

the invention directly installs the shell on the end cover of the engine, the rotor core is sealed and bonded on the rotor core bracket to form the rotor core assembly, the inner wall of the shell is used for installing the stator core component, the rotor core assembly formed by the rotor core and the rotor core bracket is directly connected with the engine shaft, the original engine mass flywheel and gear ring component are cancelled, the generator rotor replaces the mass flywheel and the gear ring component, the requirement of the engine on the inertia of the flywheel is satisfied, the requirements of the engine on vibration, rotating speed fluctuation and the like are ensured, the front end cover structure is subtracted, only the back end cover is used for sealing the shell of the generator, the structure is simpler, the whole rotor assembly is supported by the back end cover and the bearing, the rotor is ensured not to generate eccentricity generated by structural deformation, and the eccentricity amount and the control precision of the rotary rotor and the stator are.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a second schematic view of the present invention.

In the figure: the motor comprises a rotor core support 1, a rotor core 2, a stator winding 3, a stator core 4, a shell 5, a rotational-change stator mounting plate 6, a rotational-change stator 7, a rotational-change rotor 8, a pressure plate 9, an engine shaft 10, a rear end cover 11 and a bearing 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: an extended range type electric automobile generator structure comprises a rotor core 2 and a stator core 4, wherein the rotor core 2 is hermetically bonded on a rotor core support 1, the central position of the rotor core support 1 is connected with an engine shaft 10 through a bolt, the engine shaft 10 is inserted in the central position of a shell 5, the inner side wall of the shell 5 is connected with the stator core 4 through a bolt, a stator winding 3 is surrounded in the middle of the stator core 4, the stator core 4 is positioned on the outer side of the rotor core 2, the end part of the shell 5 is connected with a rotary variable stator mounting plate 6 through a bolt, the rotary variable stator mounting plate 6 is of a bent structure, the rotary variable stator mounting plate 6 is not in contact with the rotor core 2, the end part of the rotary variable stator mounting plate 6 is connected with a rotary variable stator 7 through a bolt, one side of the end part of the rotor core support 1 is inserted with a rotary variable rotor 8, and, the 1 lateral wall of rotor core support bonds and has clamp plate 9, and clamp plate 9 is located the 8 outsides of rotary transformer rotor, and 1 one end joint of rotor core support has rear end cap 11, and the tip inboard have inlayed with 11 assorted bearings 12 of rear end cap, 11 central archs pegs graft inside bearing 12 of rear end cap, and 11 central protruding tip of rear end cap be the chamfer structure, 11 tip of rear end cap extend to 5 sides of casing, and 11 tip of rear end cap pass through the bolt and are connected with casing 5.

The structure principle is as follows: a shell 5 is directly arranged on an end cover of an engine, a rotor core 2 is hermetically bonded on a rotor core support 1 to form a rotor core assembly, the inner wall of the shell 5 is used for mounting a stator core 4 component, the rotor core assembly formed by the rotor core 2 and the rotor core support 1 is directly connected with an engine shaft 10, the original engine mass flywheel and gear ring component are cancelled, a generator rotor is used for replacing the mass flywheel and the gear ring component, the requirement of the engine on the inertia of the flywheel is met, and the requirements of the engine on vibration, rotating speed fluctuation and the like are ensured, and the front end cover structure is subtracted, only the rear end cover 11 is used for sealing the shell 5 of the generator, the structure is simpler, the whole rotor assembly is supported by the rear end cover 11 and the bearing 12, so that the rotor is prevented from generating eccentricity caused by structural deformation, and the eccentricity and control accuracy of the rotary rotor and the stator are guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an increase form electric automobile generator structure, includes rotor core (2) and stator core (4), its characterized in that: rotor core (2) seal bonding is on rotor core support (1), rotor core support (1) central point puts and is connected with engine shaft (10) through the bolt, engine shaft (10) are pegged graft and are put at casing (5) central point, casing (5) inside wall has stator core (4) through bolted connection, stator core (4) middle ring has stator winding (3), stator core (4) are located the rotor core (2) outside, just casing (5) tip has become stator mounting panel (6) soon through bolted connection, it has become stator (7) soon to become stator mounting panel (6) tip through bolted connection, rotor core support (1) tip one side is pegged graft and is become rotor (8) soon, it is corresponding with the stator (7) position that becomes soon to become rotor (8) tip.

2. The extended range electric vehicle generator structure of claim 1, wherein: rotor core support (1) one end joint has rear end cap (11), just tip inboard has inlayed bearing (12) with rear end cap (11) assorted.

3. The extended range electric vehicle generator structure of claim 2, wherein: the central bulge of the rear end cover (11) is inserted in the bearing (12), and the end part of the central bulge of the rear end cover (11) is of a chamfer structure.

4. The extended range electric vehicle generator structure of claim 2, wherein: the end part of the rear end cover (11) extends to the side edge of the shell (5), and the end part of the rear end cover (11) is connected with the shell (5) through a bolt.

5. The extended range electric vehicle generator structure of claim 1, wherein: the rotary transformer stator mounting plate (6) is of a bending structure, and the rotary transformer stator mounting plate (6) is not in contact with the rotor iron core (2).

6. The extended range electric vehicle generator structure of claim 1, wherein: the rotor core support (1) side wall bonds and has clamp plate (9), clamp plate (9) are located and become rotor (8) outside soon.