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A rotor baffle, rotor assembly, motor and vehicle

A rotor and baffle technology, applied in the fields of rotor baffles, rotor components, motors and vehicles, can solve the problems of low cooling efficiency, cooling oil cannot cool the rotor core, etc., so as to improve the cooling capacity and reduce the risk of demagnetization , the effect of improving the performance of the motor

Active Publication Date: 2020-12-08
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the motor in the prior art that the cooling oil cannot cool the rotor core, especially the magnetic steel, and the cooling efficiency is low due to the blocking of the baffle plate, thereby providing a Rotor baffle, rotor assembly, motor and vehicle

Method used

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  • A rotor baffle, rotor assembly, motor and vehicle
  • A rotor baffle, rotor assembly, motor and vehicle
  • A rotor baffle, rotor assembly, motor and vehicle

Examples

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Embodiment 1

[0037] Example 1 as Figure 1-5 As shown, the present invention provides a rotor baffle, the rotor baffle 7 can be used to be arranged with the axial end surface 31 of the rotor core 3, and the rotor baffle 7 includes The first end surface 71 and the second end surface 72, and the inside of the rotor baffle 7 is also provided with a rotor baffle oil inlet 14 passing through the first end surface 71 and the second end surface 72, the rotor core 3 is also provided with a magnetic steel 2, and the position of the rotor baffle oil inlet 14 is opposite to that of the magnetic steel 2.

[0038] In the present invention, the oil inlet of the rotor baffle is provided on the rotor baffle through the first end surface and the second end surface in the axial direction, and the oil inlet of the rotor baffle is arranged opposite to the magnetic steel, so that the oil inlet of the rotor baffle Cooling oil can be effectively introduced from the outside of the rotor baffle, and introduced to...

Embodiment 2 and 3

[0047] There are multiple oil inlets 14 of the rotor baffle, and they are distributed along the circumferential direction of the rotor baffle 7 . It is preferably evenly distributed in the circumferential direction. This is the preferred structural form of the oil inlet of the rotor baffle of the present invention. By setting a plurality of oil inlets and distributing them along the circumferential direction, it is possible to realize the guiding effect on the oil passage at multiple places from the circumferential direction of the rotor baffle, and the rotor The external oil leads to the oil passage inside the rotor core through the rotor baffle oil inlet and the oil guide structure, which further improves the cooling effect on the rotor core and magnetic steel, and can reduce the weight of the baffle.

[0048] Preferably,

[0049] There are also multiple oil guide structures 15 , which communicate with the oil inlets 14 of the rotor baffle one by one. This is the preferred...

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Abstract

The invention provides a rotor baffle plate, a rotor component, a motor and a vehicle. The rotor baffle plate is arranged on an axial end surface (31) of a rotor iron core (3), and the rotor baffle plate (7) includes a first end surface (71) and a second end surface (72) which are opposite to each other in an axial direction. A rotor baffle plate oil inlet (14) which penetrates the first end surface (71) and the second end surface (72) is arranged in the rotor baffle plate (7). Magnetic steel (2) is also arranged in the rotor iron core (3), and the rotor baffle plate oil inlet (14) is oppositeto the position of the magnetic steel (2). In the invention, the magnetic steel can be cooled so as to effectively prevent situations that cooling oil cannot cool the rotor iron core and especially the magnetic steel because of blocking of the baffle plate, and cooling efficiency is low; temperature rise of the motor is reduced, a risk of demagnetization of the rotor magnetic steel is decreased,and performance and a service life of the motor are improved and prolonged.

Description

technical field [0001] The invention belongs to the field of automobile motors or automobile main drive motors, and in particular relates to a rotor baffle, a rotor assembly, a motor and a vehicle. Background technique [0002] At present, when a pure electric passenger vehicle is running on road conditions such as climbing a hill, its drive motor is in a low-speed and high-torque working condition. The rotor of the main drive motor will emit a lot of heat due to various losses, which will generate a lot If the heat is not cooled in time, it will have a great impact on the performance and life of the motor. With the development of the industry, the volume of new energy passenger vehicles will become smaller and smaller as the power density increases, and the motor The interior space is also more compact. The heat dissipation method of the rotor and magnetic steel of the main drive motor is mostly to spray the coolant directly to the rotor in the axial direction, thereby rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/197
CPCH02K9/197H02K2213/03
Inventor 陈彬薛家宁刘健宁高峰肖成健吕林阳丁佐蓬
Owner GREE ELECTRIC APPLIANCES INC
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