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Electric Motors, Powertrains and Automotive

A shell and coil winding technology, which is applied in the direction of electric vehicles, motors, power devices, etc., can solve the problems of rotor kinetic energy consumption, and achieve the effects of avoiding kinetic energy consumption, cooling avoidance, and solving rotor kinetic energy consumption

Active Publication Date: 2021-02-23
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a motor, powertrain and automobile, which reduces or avoids the kinetic energy loss of the oil-cooled motor at high speed, thereby solving the problem that the rotor in the existing motor sprays cooling oil to the end of the coil under centrifugal action Sometimes cause the problem of rotor kinetic energy consumption

Method used

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  • Electric Motors, Powertrains and Automotive
  • Electric Motors, Powertrains and Automotive
  • Electric Motors, Powertrains and Automotive

Examples

Experimental program
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Effect test

Embodiment 2

[0111] Figure 11 is a schematic structural diagram of the blocking member in the motor provided in the second embodiment of the present application, Figure 12 is a schematic structural diagram of the blocking member and the stator in the motor provided in the second embodiment of the present application, Figure 13 It is a schematic diagram of the structure between the blocking member and the inner wall of the casing in the motor provided in the second embodiment of the present application.

[0112] The difference between this embodiment and the above-mentioned embodiment is: in this embodiment, as Figure 11-13 As shown, the blocking member 40 is a semi-circular arc plate 40b arranged around the outer surface 303 of the upper semi-circular end portion 31 of the coil winding, wherein the semi-circular arc plate 40b is connected with the inner wall of the casing 10, that is, this embodiment In this embodiment, the blocking member 40 is fixed on the inner wall of the casing ...

Embodiment 3

[0118] Figure 14 is the structural schematic diagram of the blocking member in the motor provided by the third embodiment of the present application, Figure 15 It is a schematic structural diagram of the blocking member and the stator in the motor provided in the third embodiment of the present application.

[0119] The difference between this embodiment and the above-mentioned embodiment is: in this embodiment, as Figure 14-15 As shown, the blocking member 40 is an tarpaulin 40c wrapped on the inner surface 301 of the upper semicircular end portion 31 of the coil winding and in a semi-circular arc shape, that is, the blocking member 40 is the tarpaulin 40c, and the tarpaulin 40c is wrapped around the coil winding. On the inner surface 301 of the upper semicircular end 31, the tarpaulin 40c blocks the cooling liquid and prevents the cooling liquid from contacting the rotor 60. In this embodiment, the tarpaulin 40c is an existing material. When the blocking member 40 is a ...

Embodiment 4

[0122] Figure 17 It is a schematic structural diagram of the powertrain provided in the fourth embodiment of the present application.

[0123] This embodiment provides a powertrain, which can be applied to electric vehicles / electric vehicles (EV), pure electric vehicles (PEV / BEV), hybrid electric vehicles (HEV), and extended-range electric vehicles (REEV), plug-in hybrid electric vehicle (PHEV), new energy vehicle (New Energy Vehicle), etc., or can be applied to battery management (Battery Management), motor & drive (Motor & Driver), power converter (Power Converter), etc. equipment, such as Figure 17 As shown, it includes at least the motor of any of the above-mentioned embodiments and the reducer 200 connected with the rotating shaft 50 of the motor, wherein the reducer 200 is provided with a heat dissipation channel 201, and the heat dissipation channel 201 and the cooling channel 20 in the motor form a cooling circuit , that is, the motor and the reducer 200 adopt an i...

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Abstract

Embodiments of the present application provide a motor, a powertrain, and a vehicle. The motor can be applied to electric vehicles / electric vehicles, pure electric vehicles, hybrid vehicles, extended-range electric vehicles, plug-in hybrid vehicles, new energy vehicles, Battery management, motor & drive, power conversion, reducer, etc. The motor is used to output power, and during the motor output power, the barrier set in the motor prevents the coolant from contacting the rotor, so that the coolant does not come into contact with the rotor during rotation. It will splash under the centrifugal action of the rotor, thereby avoiding the kinetic energy consumption of the rotor, making the motor speed faster and the power output larger, and solving the problem caused by the rotor spraying the cooling oil to the end of the coil under the centrifugal action of the existing motor. The problem of rotor kinetic energy consumption.

Description

technical field [0001] The embodiments of the present application relate to the field of electric motors, and in particular, to an electric motor, a powertrain, and an automobile whose coil ends are oil-cooled. Background technique [0002] The motor is an electromagnetic device that realizes the conversion or transmission of electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque. The thick end cover, the inner wall of the shell, the front end cover and the rear end cover form a cavity, and the cavity is provided with a stator, a rotor, a coil and a shaft with one end protruding from the front end cover and the other end being rotatably connected to the rear end cover, in which the motor When running at high speed, the coil will generate a lot of heat. For this reason, cold water or oil cooling is often used to dissipate heat to the motor. Among them, water is used as a cooling medium, and there are water-cooled m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/20H02K9/19H02K9/193H02K7/10H02K9/26
CPCH02K5/20H02K9/19H02K9/193H02K7/10H02K9/26H02K5/203H02K5/1732H02K2205/09Y02T10/64B60K11/02
Inventor 王健刚李泉明文俊
Owner HUAWEI DIGITAL POWER TECH CO LTD