CN210591431U

CN210591431U - Range extending system

Info

Publication number: CN210591431U
Application number: CN201921732119.2U
Authority: CN
Inventors: 梁乃道
Original assignee: Longpai Automobile Holding Co ltd
Current assignee: Longpai Automobile Holding Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-05-22
Anticipated expiration: 2029-10-15

Abstract

The utility model relates to a new forms of energy car field provides an extend journey system, should extend journey system and include just balanced power generation facility, first group battery and second group battery, just balanced power generation facility includes engine and two generators, two the generator configuration is in two relative tip of engine, two the power input shaft of generator correspond with the power output shaft's of engine both ends transmission cooperation, two the electric energy output of generator corresponds through the rectifier and connects first group battery with the second group battery, first group battery with the second group battery with the controller is connected, provides the energy for driving motor with selecting one of them group battery. The range extending system can improve the cruising ability and reduce the vibration noise of the engine.

Description

Range extending system

Technical Field

The utility model relates to a new forms of energy car field, concretely relates to increase journey system.

Background

The hybrid electric vehicle is a new energy vehicle. The hybrid electric vehicle is provided with an engine, a generator, a battery pack, and a drive motor. When the gasoline-electric hybrid vehicle is in operation, the engine is not started to be powered by the battery pack when the electric quantity of the battery pack is larger than a set value, the engine is started when the electric quantity of the battery pack is lower than the set value, the engine and the battery pack jointly supply energy for a driving system, and the battery pack is also supplemented with electric energy when the energy demand of the vehicle is small.

The power generation device of the new energy vehicle consists of an engine and a generator, wherein the generator and a power input shaft are in transmission fit with one end of a power output shaft of the engine, and the generator is driven to generate power when the engine works. Such power generation devices have the following technical drawbacks: since there is only one generator, the load of the engine (generator) is at one end of the power take-off shaft, resulting in unbalanced engine load, large engine vibration, and energy loss. In addition, the problem of poor cruising ability of the new energy vehicle also exists, and the cruising ability is still an important research direction of the new energy vehicle at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an increase journey system to solve the above-mentioned defect that prior art exists to a certain extent at least.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the range extending system comprises a positive balance power generation device, a first battery pack and a second battery pack, wherein the positive balance power generation device comprises an engine and two generators, the two generators are arranged at two opposite end parts of the engine, power input shafts of the two generators are correspondingly in transmission fit with two ends of a power output shaft of the engine, electric energy output ends of the two generators are correspondingly connected with the first battery pack and the second battery pack through rectifiers, and the first battery pack and the second battery pack are connected with a controller to select one of the battery packs to provide energy for a driving motor.

The engine drives the two generators to synchronously work to charge the two battery packs, the controller controls one battery pack to provide energy for the driving motor, and when the electric quantity of the battery pack is lower than a set value, the controller switches the other battery pack to provide energy for the driving motor, so that the two battery packs alternately work, and the cruising ability is improved. Meanwhile, the positive balance power generation device is adopted, and the two generators are arranged in the positive balance power generation device, so that the load (the generators) of the engine can be balanced, the vibration of the engine is reduced, the friction of the power output shaft is reduced, the energy loss caused by the vibration and the friction is reduced, and the energy utilization rate is improved.

Preferably, the rotor of the generator is located at the outer periphery of the stator, and the central shaft of the rotor is coupled to the end of the power output shaft through the central hole of the stator.

Preferably, the rotor is fixedly provided with a heat dissipation blade.

Preferably, the heat dissipation blade is a wind wheel, and the wind wheel is fixedly arranged at the end part of the rotor.

Preferably, the two generators are of the same specification.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the range extending system adopts the two battery packs to provide energy for the driving motor alternately, and utilizes the positive balance power generation device to supplement electric energy for the two battery packs, so that the cruising ability can be improved, the vibration noise of the engine can be reduced, the friction of the power output shaft is reduced, and the energy loss caused by vibration and friction is reduced.

Drawings

FIG. 1 is a block diagram of a range extension system;

FIG. 2 is a schematic structural diagram of a positive balance power generation device;

description of the drawings: 1. a positive balance power generation device; 11. a generator; 111. a stator; 112. a rotor; 12. an engine; 13. a support; 14. a bolt; 15. the right end of the power output shaft; 16. the left end of the power output shaft; 2. a rectifier; 3. a first battery pack; 4. a second battery pack; 5. a controller; 6. the motor is driven.

Detailed Description

The utility model discloses aim at improving the duration of new forms of energy car and improve the engine vibration problem and the energy loss problem of new forms of energy car, provide for this reason and increased journey system.

The present invention will be further explained with reference to the drawings and examples.

Referring to fig. 1, the range extending system includes a positive balance power generation device 1, a first battery pack 3 and a second battery pack 4, where the positive balance power generation device 1 includes an engine 12 and two generators 11, electric energy output ends of the two generators 11 are correspondingly connected to the first battery pack 3 and the second battery pack 4 through a rectifier 2, the first battery pack 3 and the second battery pack 4 are connected to a controller 5 for selecting one of the battery packs to provide energy for a driving motor 6, and the controller 5 may adopt a controller of a vehicle itself.

Fig. 2 schematically shows the assembled relationship of the engine 12 and the two generators 11 of the positive balance power generation device 1. As shown in fig. 2, in the positive balance power generation device 1, a generator 11 is mounted on the right end of an engine 12 through a bracket 13, and a power input shaft (i.e., a central shaft of a rotor 112) of the generator 11 is coupled to a right end 15 of a power output shaft of the engine 12; another generator 11 is mounted on the left end of the engine 12 through a bracket 13, and a power input shaft of the generator 11 (i.e., a central shaft of the rotor 112) is coupled to a left end 16 of a power output shaft of the engine 12. It can be seen that the two generators 11 are symmetrically disposed on the power output shaft of the engine 12, so that the power output shaft of the engine 12 drives the two generators 11 to synchronously operate when the engine 12 operates, so that the load of the engine 12 is balanced, the vibration of the engine 12 is reduced, the friction of the power output shaft is reduced, the energy loss caused by the vibration and the friction is reduced, and the energy utilization rate is improved.

In the range extending system, the engine 12 drives the two generators 11 to synchronously work to charge the two battery packs, the controller 5 controls one battery pack to provide energy for the driving motor 6, and when the electric quantity of the battery pack is lower than a set value, the controller 5 switches the other battery pack to provide energy for the driving motor 6, so that the two battery packs alternately work, and the cruising ability is improved.

With further reference to fig. 2, the generator 11 includes a stator 111 and a rotor 112, the stator 111 is fixed to the bracket 13 by bolts 14, the rotor 112 is located at the outer periphery of the stator 111, and the central shaft of the rotor 112 is coupled to the end of the power output shaft through the central hole of the stator 111. Since the rotor 112 of the generator 11 is located outside the stator 111, heat generated by friction with air when the rotor 112 rotates at a high speed can be quickly dissipated, and the heat dissipation effect is better.

In order to achieve a better heat dissipation effect, heat dissipation blades may be further fixedly disposed on the rotor 112, and when the rotor 112 rotates, the heat dissipation blades are driven to rotate to generate an air flow, so as to dissipate heat of the whole generator 11. The heat dissipating blades are preferably wind wheels, which are fixedly mounted on the end of the rotor 112.

Both generators 11 are preferably generators 11 of the same size so that the load of the engine 12 is more balanced.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for assisting the skilled person in understanding the content of the present invention, and can not be understood as the limitation of the protection scope of the present invention. Various decorations, equivalent changes and the like which are performed on the scheme by the technical personnel in the field under the conception of the invention are all included in the protection scope of the invention.

Claims

1. The range extending system is characterized by comprising a positive balance power generation device, a first battery pack and a second battery pack, wherein the positive balance power generation device comprises an engine and two generators, the two generators are arranged at two opposite end parts of the engine, power input shafts of the two generators are correspondingly in transmission fit with two ends of a power output shaft of the engine, electric energy output ends of the two generators are correspondingly connected with the first battery pack and the second battery pack through rectifiers, and the first battery pack and the second battery pack are connected with a controller so as to select one of the battery packs to provide energy for a driving motor.

2. The range extension system of claim 1, wherein: the rotor of the generator is positioned on the periphery of the stator, and the central shaft of the rotor penetrates through the central hole of the stator to be coupled with the end part of the power output shaft.

3. The range extension system of claim 2, wherein: and the rotor is fixedly provided with radiating blades.

4. The range extension system of claim 3, wherein: the radiating blades are wind wheels which are fixedly arranged at the end parts of the rotors.

5. The range extension system of any one of claims 1 to 4, wherein: the two generators have the same specification.