CN211809096U

CN211809096U - Integrated structure of driving and power generating system for extended range electric automobile

Info

Publication number: CN211809096U
Application number: CN201922416181.7U
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: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-10-30
Anticipated expiration: 2029-12-29

Abstract

The utility model discloses an integrated structure of a driving and power generating system for an extended range electric automobile, which comprises a shell, wherein a clapboard is arranged in the shell and divides the shell into two cavities, namely a generator gear cavity and a driving motor speed reducing cavity, a generator and a driving motor are fixed on the outer side of the shell, an output shaft of the generator is connected with a first gear, the first gear is in meshing transmission connection with a second gear, the second gear is fixed with an engine input shaft, an output shaft of the driving motor is connected with a third gear, the third gear is in meshing connection with a fourth gear, the fourth gear is in meshing connection with a fifth gear, the center of the fifth gear is in rotational connection with a second connecting shaft through a bearing, the second connecting shaft is fixed in the shell, the third gear, the fourth gear, the fifth gear, the first connecting shaft and the second connecting shaft are all positioned in the speed reducing cavity of the driving motor, an integrated controller assembly is, the volume is relatively less, easy to assemble, and overall structure stability is good.

Description

Integrated structure of driving and power generating system for extended range electric automobile

Technical Field

The utility model belongs to the technical field of electric automobile accessory, concretely relates to drive for extended range formula electric automobile, power generation system integrated form 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 connection mode of the current range-extending type electric automobile generator system and an engine is coaxial connection mode and non-coaxial connection, the coaxial connection generally adopts a split structure of a generator system and a driving motor system, the space is occupied, and the arrangement in the automobile is difficult. The generator shaft gear and the generator shaft gear that different hub connections are connected, connect driving motor through the gear box, in current design, because the volume of gear box is great, the intensity and the NVH of gear box have a problem, driving motor gear and generator gear are in a cavity simultaneously, because there is very big difference in driving motor system and generator system motor speed, two sets of gears are in a cavity, are unfavorable for the lubrication of gear, the efficiency of reduction gear also can receive the influence. In view of the above, it is necessary to design an integrated structure of driving and generating system for extended range electric vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an increase form electric automobile with drive, power generation system integrated form structure through integrative integrated, the chambered design of generator and driving motor, reduces the volume to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an integrated structure of a driving and power generating system for an extended range electric automobile comprises a shell, a partition is integrally formed in the middle of the interior of the shell and divides the shell into two cavities, namely a generator gear cavity and a driving motor speed reduction cavity, a generator and a driving motor are fixed on the outer side of the shell, a first gear is in key connection with an output shaft end of the generator, a second gear is in meshing transmission connection with one side of the first gear, the first gear and the second gear are both positioned in the generator gear cavity, an engine input shaft is fixedly connected with the center of the second gear, a third gear is in key connection with the output shaft end of the driving motor, a fourth gear is in meshing transmission connection with the lower side of the third gear, a first connecting shaft is rotatably connected with the center of the fourth gear through a bearing and is fixed in the interior of the shell, the downside meshing transmission of fourth gear is connected with the fifth gear, the center of fifth gear is rotated through the bearing and is connected with the second connecting axle, the inside at the casing is fixed to the second connecting axle, third gear, fourth gear, fifth gear, first connecting axle and second connecting axle all are located driving motor speed reduction intracavity, integrated controller assembly is installed to the upper end of casing.

Preferably, a mounting flange is integrally formed on the outer side of the side, away from the generator, of the shell.

Preferably, the generator and the drive motor are located on the same side of the housing.

Preferably, the connection mode of the engine input shaft and the engine adopts the mode of directly connecting an internal spline and an external spline or adopting a torsional damper to connect.

Preferably, the mounting flange is suitable for different types of engines and is designed according to the size of the flange of the engine.

Preferably, the integrated controller assembly integrates the power connecting lines of the generator, the driving motor and the controller by utilizing the unified design of the mounting points of the generator and the driving motor shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts two cavities of the gear cavity of the generator and the speed reducing cavity of the driving motor as independent structures, thereby ensuring the oil circuit stability of each system of the speed changer, reducing the oil circuit loss and improving the efficiency of the speed reducer;

2. the utility model discloses utilize generator and drive motor casing structure, integrated controller system has been arranged, make full use of the space of engine side, for unifying control system more in the integrated control system, owing to there is very big space, can integrate DC converter among the integrated controller, on-vehicle charger OBC etc. integrated controller and generator are at first integrated on the power cable, the generator draws the line directly to get into integrated controller from the generator rear end cap mutually, do not need power cable, save space and cost, secondly generator water route and driving motor water route are integrated, the water pipe arrangement has been reduced, the space has been saved.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a rear view of the present invention.

Reference numerals: 1. a housing; 2. a partition plate; 3. a generator gear cavity; 4. a drive motor deceleration chamber; 5. a generator; 6. a drive motor; 7. a first gear; 8. a second gear; 9. an engine input shaft; 10. a third gear; 11. a fourth gear; 12. a first connecting shaft; 13. a fifth gear; 14. a second connecting shaft; 15. an integrated controller assembly; 16. and (7) mounting a flange.

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.

The utility model provides a technical scheme: as shown in fig. 1 and 2, an integrated structure of a driving and power generating system for an extended range electric vehicle comprises a housing 1, a partition plate 2 is integrally formed in the middle inside the housing 1, the housing 1 is divided into two cavities, namely a generator gear cavity 3 and a driving motor speed reduction cavity 4, by the partition plate 2, a generator 5 and a driving motor 6 are fixed on the outer side of the housing 1, and the generator 5 and the driving motor 6 are located on the same side of the housing 1;

as shown in fig. 1-4, a first gear 7 is keyed on an end portion of an output shaft of the generator 5, a second gear 8 is engaged and connected to one side of the first gear 7, the first gear 7 and the second gear 8 are both located in a generator gear cavity 3, an engine input shaft 9 is fixedly connected to a center of the second gear 8, the engine input shaft 9 is connected to the engine by means of internal and external spline direct connection or by means of a torsional damper, a third gear 10 is keyed on an end portion of an output shaft of the driving motor 6, a fourth gear 11 is engaged and connected to a lower side of the third gear 10, a first connecting shaft 12 is rotatably connected to a center of the fourth gear 11 through a bearing, the first connecting shaft 12 is fixed inside the housing 1, a fifth gear 13 is engaged and connected to a lower side of the fourth gear 11, a second connecting shaft 14 is rotatably connected to a center of the fifth gear 13 through a bearing, the second connecting shaft 14 is fixed inside the shell 1, and the third gear 10, the fourth gear 11, the fifth gear 13, the first connecting shaft 12 and the second connecting shaft 14 are all positioned in the driving motor speed reducing cavity 4;

as shown in fig. 2 and 4, an integrated controller assembly 15 is installed at the upper end of the housing 1, the integrated controller assembly 15 is designed uniformly by using installation points of the housing 1 of the generator 5 and the driving motor 6, a power connection line of the generator 5, the driving motor 6 and the controller is integrated together, a mounting flange 16 is integrally formed on the outer side of one side, away from the generator 5, of the housing 1, and the mounting flange 16 is suitable for engines of different types and is designed according to the size of the flange of the engine.

The structure principle is as follows: the shell is divided into a generator gear cavity 3 and a driving motor speed reduction cavity 4 which are of independent structures, so that oil ways of all systems of the speed changer are stable, oil way loss is reduced, the efficiency of the speed reducer is improved, and meanwhile, because the area of a box body of the speed reducer is large, the baffle plate 2 is additionally arranged between the two cavities, so that the integral strength of the speed reducer is improved, and the vibration and the noise of the speed reducer are reduced;

utilize generator

5 and 6 shell structure of driving motor, integrated controller system has been arranged, make full use of the space of engine side, for unifying control system more among the integrated control system, owing to there is very big space, can integrate DC/DC converter among the integrated controller, on-vehicle charger OBC etc. integrated controller and generator 5 are at first integrated on the power cable, generator 5 draws the line directly from generator 5 rear end cap entering integrated controller mutually, do not need the power cable, save space and cost, secondly generator 5 water route and 6 water route integration of driving motor, the water piping arrangement has been reduced, the space has been saved.

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 with drive, power generation system integrated form structure, includes casing (1), its characterized in that: the generator is characterized in that a partition plate (2) is integrally formed in the middle of the inside of the shell (1), the partition plate (2) divides the shell (1) into two cavities, namely a generator gear cavity (3) and a driving motor reduction cavity (4), a generator (5) and a driving motor (6) are fixed on the outer side of the shell (1), a first gear (7) is in key connection with the end part of an output shaft of the generator (5), a second gear (8) is in meshing transmission connection with one side of the first gear (7), the first gear (7) and the second gear (8) are both located in the generator gear cavity (3), an engine input shaft (9) is fixedly connected with the center of the second gear (8), a third gear (10) is in key connection with the end part of the output shaft of the driving motor (6), and a fourth gear (11) is in meshing transmission connection with the lower side of the third gear (10), the center of fourth gear (11) is connected with first connecting axle (12) through the bearing rotation, the inside at casing (1) is fixed in first connecting axle (12), the downside meshing transmission of fourth gear (11) is connected with fifth gear (13), the center of fifth gear (13) is connected with second connecting axle (14) through the bearing rotation, the inside at casing (1) is fixed in second connecting axle (14), third gear (10), fourth gear (11), fifth gear (13), first connecting axle (12) and second connecting axle (14) all are located driving motor speed reduction chamber (4), integrated controller assembly (15) are installed to the upper end of casing (1).

2. The integrated structure of driving and power generating system for extended range electric vehicle as claimed in claim 1, wherein: and a mounting flange (16) is integrally formed on the outer side of one side, far away from the generator (5), of the shell (1).

3. The integrated structure of driving and power generating system for extended range electric vehicle as claimed in claim 1, wherein: the generator (5) and the driving motor (6) are positioned on the same side of the shell (1).

4. The integrated structure of driving and power generating system for extended range electric vehicle as claimed in claim 1, wherein: the engine input shaft (9) is connected with the engine in a mode of adopting internal and external splines to directly connect or adopting a torsional damper mode to connect.

5. The integrated structure of driving and power generating system for extended range electric vehicle as claimed in claim 2, wherein: the mounting flange (16) is suitable for different types of engines and is designed according to the size of the flange of the engine.

6. The integrated structure of driving and power generating system for extended range electric vehicle as claimed in claim 1, wherein: the integrated controller assembly (15) integrates the power connecting lines of the generator (5), the driving motor (6) and the controller together by utilizing the unified design of the mounting points of the generator (5) and the driving motor (6) on the shell (1).