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Oil-cooled motor with oil path structure and motor oil path cooling system

A cooling system and oil circuit technology, which is applied in the motor oil circuit cooling system and oil-cooled motor field, can solve the problems such as the inability to match the gearbox, achieve the effect of improving power density and reliability, less structural changes, and less structural improvement

Pending Publication Date: 2020-06-19
ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this system, the motor and the gearbox share the oil circuit, which cannot match the gearboxes of different systems

Method used

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  • Oil-cooled motor with oil path structure and motor oil path cooling system
  • Oil-cooled motor with oil path structure and motor oil path cooling system
  • Oil-cooled motor with oil path structure and motor oil path cooling system

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Embodiment approach

[0037] Figure 4 , 5 Two stator core structures are shown respectively. In one embodiment, there are two armature main assembly ears 11 , and the two armature main assembly ears 11 are symmetrically arranged on the stator core 1 . There are two auxiliary armature mounting ears 12, and the two auxiliary armature mounting ears 12 are arranged symmetrically and on the symmetrical planes of the two main armature mounting ears 12 (refer to Figure 4 ). Each armature main assembly ear has a mounting hole at both ends of the stator core. by Figure 4As an example, the formation of the stator core will be described. Considering the saving of stator punching materials, the blanking of the stator punching sheet is a square, making full use of the maximum diagonal size of the square, one kind of punching sheet symmetrically protrudes from the two armature main assembly ears, and the second type of punching sheet is in the first Two armature auxiliary lugs are added to the symmetric...

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Abstract

The invention discloses an oil-cooled motor with an oil path structure and a motor oil path cooling system, and belongs to the technical field of motors. The motor comprises a stator and a rotor; a stator iron core is provided with an armature main assembly lug arranged in the axial direction of the stator iron core and an armature auxiliary assembly lug arranged at one end of the stator iron core. The stator core is assembled in the motor when the armature main assembly lug is located at the top of the stator core; main oil pipes which are arranged along the axial direction of the stator coreare arranged on two sides of the armature main assembly lug at the top of the stator core; a plurality of small holes are formed in the surfaces of the main oil pipes and used for spraying cooling oil in the main oil pipes to an outer surface of the stator core and the outer surfaces of windings at two ends of the stator; cooling oil cavities for cooling oil to enter are formed between windings at two ends of the stator and the outer sides of dynamic balance plates at two ends of the rotor; front and rear bearing chambers of the motor are provided with cooling oil introduction channels; an oil pan of the motor converges the cooling oil passing through the stator iron core, the windings and the bearing chambers. The system comprises the motor, an oil pump and an oil-water radiator. The motor and the power system can be widely matched with reduction gearboxes of different systems, and the reliability and economy of the power system are improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to an oil-cooled motor with an oil circuit structure and a motor oil circuit cooling system. Background technique [0002] Among the motor cooling methods, there is a way to use cooling oil to directly contact and exchange heat with the loss-generating parts of the stator and rotor of the motor. Currently, the main cooling structure used in this type of cooling method is to spray the cooling oil through conduits or fine holes. The surface of the wear parts is generated, while a part of the cooling oil also takes care of lubricating the raceways of the bearing. The existing oil circuit structure generally relies on the powertrain system to provide the oil circuit and flow distribution, and shares the oil circuit system with the reduction box / gearbox. This requires a major change to the original gearbox system, or redevelopment of a gearbox with an oil cooling system. Thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/00H02K9/193H02K1/20H02K3/24
CPCH02K1/20H02K3/24H02K9/00H02K9/193
Inventor 王丽
Owner ZHEJIANG LOONGSON ELECTRIC DRIVE TECH CO LTD
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