CN-122008840-A - Integrated heat dissipation system of hybrid power device and hybrid power device

CN122008840ACN 122008840 ACN122008840 ACN 122008840ACN-122008840-A

Abstract

The invention discloses an integrated heat radiation system of a hybrid power device and the hybrid power device, and relates to the technical field of thermal management of the hybrid power device, comprising a first cooling system, a second cooling system and a third cooling system; the first cooling system comprises an engine cooling shell, a first radiator and a first circulating pump which are communicated through a first circulating pipeline to form a circulating cooling loop, the second cooling system comprises a generator cooling shell, a motor cooling shell, a hydraulic system, a second radiator and a second circulating pump which are communicated through a second circulating pipeline to form a circulating cooling loop, and the third cooling system comprises a battery cooling shell and a cab air-conditioning cooling mechanism which are communicated through a third circulating pipeline to form a circulating cooling loop.

Inventors

CHEN XUEGENG
TIAN XINLIANG
YAN LIMIN
HAN DIANLEI
WANG FENFEI
ZHANG MINGYAN

Assignees

石河子大学
江苏大学

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (10)

1. The integrated heat dissipation system of the hybrid power device comprises a cab and a cabin positioned on the lower front side of the cab, wherein an engine, a generator, a motor, a hydraulic system and a battery are arranged in the cabin, and the integrated heat dissipation system is characterized by comprising: the first cooling system comprises an engine cooling shell, a first radiator and a first circulating pump, wherein the engine cooling shell, the first radiator and the first circulating pump are communicated through a first circulating pipeline to form a circulating cooling loop; The second cooling system comprises a generator cooling shell, a motor cooling shell, a hydraulic system, a second radiator and a second circulating pump which are communicated through a second circulating pipeline to form a circulating cooling loop; and a third cooling system including a battery cooling housing and a cab air conditioner cooling mechanism that are communicated by a third circulation line to form a circulation cooling circuit.
2. The integrated heat dissipation system of the hybrid power device comprises a cab and a cabin positioned on the lower front side of the cab, wherein an engine, a generator, a motor, a hydraulic system and a battery are arranged in the cabin, and the integrated heat dissipation system is characterized by comprising: the first cooling system comprises an engine cooling shell, a first radiator and a first circulating pump, wherein the engine cooling shell, the first radiator and the first circulating pump are communicated through a first circulating pipeline to form a circulating cooling loop; The second cooling system comprises a generator cooling shell, a motor cooling shell, a second radiator and a second circulating pump which are communicated through a second circulating pipeline to form a circulating cooling loop; the third cooling system comprises a battery cooling shell and a cab air-conditioning cooling mechanism, wherein the battery cooling shell and the cab air-conditioning cooling mechanism are communicated through a third circulating pipeline to form a circulating cooling loop; And the fourth cooling system comprises a hydraulic system, a fourth radiator and a fourth circulating pump which are communicated through a fourth circulating pipeline to form a circulating cooling loop.
3. The integrated heat dissipating system of a hybrid device of claim 1 or 2, wherein the first radiator is located in front of the engine cooling housing and the second radiator is located in front of, to the side of, or above the cabin interior.
4. The integrated heat dissipation system of a hybrid device of claim 3, wherein the second heat sink is located forward of the first heat sink when the second heat sink is located forward of the engine cooling housing.
5. The integrated heat dissipation system of a hybrid power device according to claim 1 or 2, wherein the bottom of the generator cooling housing and the bottom of the motor cooling housing are communicated through a connecting channel, a mounting area is arranged above the connecting channel and between the generator cooling housing and the motor cooling housing, the second radiator is fixed in the mounting area, a second fan which is opposite to the second radiator is further arranged in the mounting area, a rotating shaft of the second fan is in transmission connection with a rotating shaft of the generator, and a rotating shaft of the generator is in transmission connection with a rotating shaft of the engine.
6. The integrated heat dissipation system of a hybrid power device according to claim 5, wherein a driven driving wheel is coaxially arranged on a rotating shaft of the second circulating pump, a driving wheel is arranged on a rotating shaft of the generator, and the driving wheel is in driving connection with the driven driving wheel.
7. The integrated heat dissipation system of a hybrid power device according to claim 1, wherein the second cooling system further comprises a generator cooling housing, a motor cooling housing, a second radiator, and a second circulation pump that are sequentially communicated to form a circulation cooling circuit through a second circulation line, the second cooling system further comprises a hydraulic oil cooling module and a fourth circulation pump, the hydraulic oil cooling module is disposed in the second radiator, and the second circulation line further sequentially communicates the hydraulic oil cooling module, the fourth circulation pump, and the hydraulic system in a circulation manner to form a hydraulic oil cooling circuit.
8. The integrated heat dissipation system of a hybrid power device according to claim 2, wherein the fourth cooling system comprises a hydraulic oil cooling module, the hydraulic oil cooling module is arranged in the fourth radiator, the fourth circulation pipeline sequentially communicates the hydraulic oil cooling module, the fourth circulation pump and the hydraulic system to form a hydraulic oil cooling loop, the first radiator is positioned in front of the engine cooling shell, and the second radiator and the fourth radiator are respectively arranged on two sides of the engine cooling shell.
9. The integrated heat dissipation system of a hybrid power device according to claim 1 or 2, wherein the generator cooling housing and the motor cooling housing each have a medium cavity, the medium cavities have a liquid inlet and a liquid outlet, medium cavity partition plates are arranged in the medium cavities, the medium cavity partition plates divide the medium cavities into foldback channels, the liquid inlet and the liquid outlet are respectively arranged at two ends of the foldback channels, and preferably, the longitudinal total height of the foldback channels is 10 mm-30 mm, and the transverse total length of the foldback channels is not less than the transverse length of the stator core.
10. A hybrid device comprising a cabin and a cabin located on the lower front side of the cabin, wherein an engine, a generator, a motor, a hydraulic system and a battery are arranged in the cabin, and the hybrid device further comprises an integrated heat dissipation system according to any one of claims 1-9.

Description

Integrated heat dissipation system of hybrid power device and hybrid power device Technical Field The invention relates to the technical field of thermal management of hybrid power devices, in particular to an integrated heat dissipation system of a hybrid power device and the hybrid power device. Background With the development of agricultural machinery to green and environment-friendly directions, hybrid power tractors have become industry hot spots. The current series hybrid power tractor generally adopts a power transmission path of an engine-generator-battery-motor, wherein the engine is used as a range extender to drag the generator to generate electricity, the generated electricity is stored in a battery pack or directly drives the motor to work, and the motor finally drives the vehicle to run. However, this arrangement results in multiple heat sources within the tractor's cabin that have a large temperature differential. The working temperatures of an engine, a generator, a motor and a power battery are different, the existing hybrid tractor cooling system adopts a single-cycle or simple double-cycle design, and the problem that the heat dissipation requirement of a high-temperature part and the supercooling problem of a low-temperature part cannot be simultaneously considered, so that the performance of the battery is attenuated in a low-temperature environment or the thermal runaway risk is increased in a high-temperature environment. Disclosure of Invention The invention aims to provide an integrated heat dissipation system of a hybrid power device and the hybrid power device, so as to solve the problems in the prior art, enable each heat source to operate in the respective optimal temperature interval and effectively improve the thermal stability of the whole hybrid power device. In order to achieve the above object, the present invention provides the following solutions: An integrated heat dissipation system of a hybrid power device, the hybrid power device comprises a cab and a cabin positioned at the lower front side of the cab, an engine, a generator, a motor, a hydraulic system and a battery are arranged in the cabin, and the integrated heat dissipation system comprises: the first cooling system comprises an engine cooling shell, a first radiator and a first circulating pump, wherein the engine cooling shell, the first radiator and the first circulating pump are communicated through a first circulating pipeline to form a circulating cooling loop; The second cooling system comprises a generator cooling shell, a motor cooling shell, a hydraulic system, a second radiator and a second circulating pump which are communicated through a second circulating pipeline to form a circulating cooling loop; and a third cooling system including a battery cooling housing and a cab air conditioner cooling mechanism that are communicated by a third circulation line to form a circulation cooling circuit. An integrated heat dissipation system of a hybrid power device, the hybrid power device comprises a cab and a cabin positioned at the lower front side of the cab, an engine, a generator, a motor, a hydraulic system and a battery are arranged in the cabin, and the integrated heat dissipation system comprises: the first cooling system comprises an engine cooling shell, a first radiator and a first circulating pump, wherein the engine cooling shell, the first radiator and the first circulating pump are communicated through a first circulating pipeline to form a circulating cooling loop; The second cooling system comprises a generator cooling shell, a motor cooling shell, a second radiator and a second circulating pump which are communicated through a second circulating pipeline to form a circulating cooling loop; the third cooling system comprises a battery cooling shell and a cab air-conditioning cooling mechanism, wherein the battery cooling shell and the cab air-conditioning cooling mechanism are communicated through a third circulating pipeline to form a circulating cooling loop; And the fourth cooling system comprises a hydraulic system, a fourth radiator and a fourth circulating pump which are communicated through a fourth circulating pipeline to form a circulating cooling loop. As an embodiment, the first radiator is positioned in front of the engine cooling shell, and the second radiator is positioned in front of, beside or above the cabin interior. As an embodiment, when the second radiator is located in front of the engine cooling case, the second radiator is located in front of the first radiator. As an implementation mode, the bottom of the generator cooling shell is communicated with the bottom of the motor cooling shell through a connecting channel, an installation area is arranged above the connecting channel and between the generator cooling shell and the motor cooling shell, the second radiator is fixed in the installation area, a second fan which is opposite to the second radiator is arranged in