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A closed motor and motor base with internal and external cooling air passages

An external cooling and closed technology, applied in the direction of cooling/ventilation devices, electromechanical devices, electrical components, etc., to achieve the effect of light weight, simple structure and high power

Active Publication Date: 2022-04-26
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned defects in the existing permanent magnet motor, the present invention provides a new type of closed motor and motor frame with internal and external cooling air passages

Method used

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  • A closed motor and motor base with internal and external cooling air passages
  • A closed motor and motor base with internal and external cooling air passages
  • A closed motor and motor base with internal and external cooling air passages

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Embodiment Construction

[0018] Such as Figure 4-7As shown, a closed motor with internal and external cooling air passages, including a cylindrical frame 1, a stator 2, a rotor 3, a drive end cover 4 and a non-drive end cover respectively connected to both ends of the frame 1 5. Rotor 3 is punched with evenly distributed axial ventilation holes 6 in the circumferential direction of the iron core. The frame 1 is composed of the inner layer frame 7, the outer layer frame 8, the drive end plate 9 of the frame and the non-drive end end of the frame. The double-layer cylindrical machine base 1 composed of plates 10, the inner layer machine base 7, the outer layer machine base 8, the machine base driving end plate 9 and the machine base non-driving end end plate 10 form a hollow area, and multiple A square cooling plate 11 (the square cooling plate 11 is composed of four end faces and two side faces, the four end faces are the first end face, the second end face, the third end face, and the fourth end face...

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Abstract

The invention relates to a motor and its machine base, in particular to a closed motor with internal and external cooling air passages and its machine base. In order to solve the problem of many defects in the existing open motors and closed motors, the present invention provides a closed motor with internal and external cooling air passages and its frame. The motor in the present invention includes a double The layered cylindrical machine base and the heat dissipation plate in it, the heat dissipation plate divides the hollow area into an outer cooling air duct and an inner cooling air duct, and the transmission end plate of the machine base is provided with an outer cooling air duct that communicates with the outer cooling air duct and is suitable for the machine base. The inlet of the cooling air duct, the outer cooling air duct outlets communicated with the outer cooling air duct are respectively provided on the peripheral surface of the non-transmission end of the outer frame, and the outer cooling air duct outlets are respectively provided on the peripheral surfaces of the transmission end and the non-transmission end of the inner layer frame. The inner cooling air duct communicates with the inner air circulation port of the transmission end and the inner air circulation port of the non-transmission end. The structure of the motor in the present invention enables the motor to have good protection performance and excellent cooling and heat dissipation.

Description

technical field [0001] The invention relates to a motor, in particular to a closed motor and a motor frame, in particular to a closed motor and a motor frame provided with internal and external cooling air passages. Background technique [0002] As a special motor, the permanent magnet motor has significant advantages when used in passenger transport vehicles. Compared with the copper bar structure of the asynchronous motor rotor, the permanent magnet motor rotor uses permanent magnets. Because there is no current from the bar bars during operation, no copper is produced. The motor has high efficiency and has the advantages of obvious energy saving and consumption reduction. Compared with asynchronous motors, permanent magnet motors with the same power are smaller in size and lighter in weight, which is conducive to saving the installation space of motors on passenger transport vehicles. Compared with the asynchronous motor and the permanent magnet motor of the same volume,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/10H02K9/08H02K9/16H02K5/20H02K5/04H02K5/10
CPCH02K9/10H02K9/08H02K9/16H02K5/20H02K5/04H02K5/10
Inventor 贾喜勤任延生刘永强霍向飞倪伟
Owner CRRC YONGJI ELECTRIC CO LTD
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