CN210927345U

CN210927345U - Range-extending type electric automobile generator structure

Info

Publication number: CN210927345U
Application number: CN201922383007.7U
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: 2020-07-03
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses an extended range electric automobile generator structure, which comprises a rotor core and a stator core, wherein the rotor core is sealed and bonded on a rotor core support, the central position of the rotor core support is connected with an engine shaft through a bolt, the engine shaft is inserted in the central position of a shell, and the inner side wall of the shell is connected with the stator core through a bolt, the utility model directly installs the shell on the end cover of the engine, a rotor core assembly consisting of the rotor core and the rotor core support is directly connected with the engine shaft, the original engine mass flywheel and a gear ring assembly are cancelled, the generator rotor replaces the mass flywheel and the gear ring assembly, the requirement of the engine on the flywheel is satisfied, the requirement of the engine on the aspects of vibration, rotation speed fluctuation and the like is ensured, the whole rotor assembly is supported through a rear end cover and a bearing, and the rotor is ensured not to generate eccentricity caused by structural, 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 utility model relates to a generator technical field specifically is an increase form 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.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an increase form electric automobile generator structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a 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 beneficial effects of the utility model are that:

the utility model discloses with casing direct mount on the end cover of engine, rotor core seals and bonds and has constituteed the rotor core assembly on the rotor core support, shells inner wall is used for installing stator core part, the rotor core assembly of constituteing by rotor core and rotor core support is direct to be connected with the engine shaft, original engine quality flywheel and ring gear subassembly have been cancelled, replace quality flywheel and ring gear subassembly with the generator rotor, satisfy the requirement of engine to the inertia of flywheel, guarantee the engine to the vibration, the requirement in aspects such as rotational speed fluctuation, and front end housing structure has been subtracted, only use the casing that the rear end cap closed the generator, the structure is simpler, support whole rotor subassembly through rear end cap and bearing, ensure that the rotor can not produce the eccentricity of structural deformation production, guarantee the eccentric amount and the control accuracy of the rotor of changeing soon and stator.

Drawings

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

fig. 2 is the schematic structural diagram of the sliding block assembly 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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.