Automatic transmission motor cooling device
A cooling technology for automatic transmissions and motors, applied in cooling/ventilation devices, electromechanical devices, electrical components, etc., can solve problems such as poor air cooling effect, clutch disengagement, and impact on vehicle reliability
Active Publication Date: 2016-03-23
SHENGRUI TRANSMISSION
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- Application Information
AI Technical Summary
Problems solved by technology
[0004] When the motor is working, the windings at both ends of the stator will generate heat, which will affect the reliability of the vehicle if it is not cooled
The effect of air cooling is not good, and water cooling needs to add additional pipelines and systems
[0005] When the friction plate pack of the clutch engages, it generates a lot of heat, which is carried away by the circulating transmission oil in the transmission, but the clutch is not engaged most of the time, so the transmission oil is wasted
Method used
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] Such as figure 1 As shown, an input shaft 2, a clutch 1, a motor and an inner hub input shaft 3 are installed in the housing 0. The input shaft 2 is arranged coaxially with the inner hub input shaft 3; the input shaft 2 is used to introduce power into the transmission, and the inner hub input shaft 3 is connected with the flywheel of the engine.
[0017] The clutch 1 includes an inner hub 18 , an outer hub 16 and a friction plate assembly 17 installed therebetween, as well as a piston 11 , a return spring 14 and a balancing piston 15 . The outer hub 16 is fixedly connected with the rotor input shaft, and the inner hub 18 is welded with the inner hub input shaft 3 . Friction plate assembly 17 has known structure, is made up of steel plate and friction plate, and steel plate rotates together with outer hub 16, and friction plate rotates together ...
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The invention discloses an automatic transmission motor cooling device. The automatic transmission motor cooling device comprises an oil channel formed in an input shaft; the input shaft is installed in a shell; the input shaft is sleeved with and is in keyed connection with a rotor input shaft; the rotor input shaft includes a connecting disc and a shaft sleeve which are connected together; the rotor input shaft is provided with a clutch; the clutch includes an inner hub, an outer hub, a friction sheet assembly installed between the inner hub and the outer hub, and a piston; the piston sleeves the shaft sleeve; the connecting disc is fixedly connected with the outer hub and a rotor holding rack for mounting a motor rotor; the piston surrounds the shaft sleeve, so that a chamber can be formed; a shaft sleeve oil communication hole is formed in the shaft sleeve; the shaft sleeve oil communication hole is communicated with the oil channel and the chamber; a piston oil communication hole is formed in the piston; inner hub oil communication holes are formed in the inner hub; outer hub oil communication holes are formed in the outer hub; a holding rack oil communication hole is formed in the rotor holding rack; and a connecting disc oil communication hole is formed in the connecting disc. According to the motor cooling device, transmission oil for lubricating the friction sheet is utilized to cool a motor.
Description
technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a device for cooling a motor of an automatic transmission for a hybrid electric vehicle. Background technique [0002] A hybrid vehicle refers to a hybrid electric vehicle (Hybrid Electric Vehicle), which uses a traditional internal combustion engine (diesel engine or gasoline engine) and an electric motor as a power source, and some engines have been modified to use other alternative fuels, such as compressed natural gas, propane and ethanol fuel, etc. . With the increasingly stringent environmental protection measures around the world, hybrid vehicles have become a focus of research and development in the automotive field due to their energy-saving and low-emission characteristics. [0003] In order to adapt to this trend, the Chinese invention patent application CN104776176A discloses an automatic transmission (AT), in which two shaft systems, three spur gear ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K9/19
CPCH02K9/19
Inventor 李凯刘肖高晓光
Owner SHENGRUI TRANSMISSION