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Automatic Transmission Motor Cooling Unit

A cooling technology for automatic transmissions and motors, applied in cooling/ventilation devices, electromechanical devices, electrical components, etc., can solve problems such as clutch disengagement, poor air cooling effect, and impact on vehicle reliability

Active Publication Date: 2018-05-11
SHENGRUI TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • Automatic Transmission Motor Cooling Unit

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] like 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 wit...

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PUM

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Abstract

The invention discloses a cooling device for an automatic transmission motor, comprising: an oil passage opened on an input shaft, the input shaft is installed in a housing, a rotor input shaft is sheathed on the input shaft and keyed, and the rotor input shaft includes a The connecting disc and sleeve of the rotor, the clutch is installed on the rotor input shaft, the clutch includes the inner hub, the outer hub and the friction plate assembly installed between them, and the piston, the piston is sleeved on the sleeve, the connecting disc and the outer hub And the rotor cage for installing the motor rotor is fixedly connected; the piston surrounds the bushing to form a chamber, the bushing is provided with a bushing oil hole, and the bushing oil hole is connected to the oil passage and the chamber; the piston is provided with a piston oil hole , The inner hub is provided with an inner hub oil hole, the outer hub is provided with an outer hub oil hole; the rotor cage is provided with a cage oil hole, and the connection plate is provided with a connection plate oil hole. The motor cooling device uses the transmission oil lubricating the friction plates to cool the 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 set...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19
CPCH02K9/19
Inventor 李凯刘肖高晓光
Owner SHENGRUI TRANSMISSION