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Motor with annual coils for elevator

A coil and ring type technology is applied in the field of ring coil motors for elevators, which can solve the problems of miniaturization of the difficult hoist, large space for cooling the hoist, and inability to centrally cool the hoist.

Inactive Publication Date: 2008-03-26
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned conventional ring coil motor for elevators, since the cooling air flows through the entire inside of the hoist from the suction port to the exhaust port, it is not possible to centrally cool the coil part, which is the main factor for the temperature rise of the hoist, and it is necessary to The space for cooling the hoist is large, making it difficult to downsize the hoist

Method used

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  • Motor with annual coils for elevator
  • Motor with annual coils for elevator
  • Motor with annual coils for elevator

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Embodiment Construction

[0015] The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

[0016] Embodiment 1

[0017] Fig. 1 is a half sectional view showing a hoist according to Embodiment 1 of the present invention. In the figure, the hoist has a base 1 , a back panel 2 , a rotating body 4 , a braking device 5 , a rotor 12 , and a stator 6 .

[0018] A back panel 2 is erected on the base 1 . A horizontal main shaft 7 is fixed to one central portion of the rear panel 2 . A plurality of bearings 8 are provided on the outer peripheral portion of the main shaft 7 . The rotating body 4 is rotatably supported by the main shaft 7 via the bearing 8 .

[0019] The rotating body 4 has a disk portion 11 , a cylindrical pulley portion 9 protruding from the side surface of the back plate 2 of the disk portion 11 , and a cylindrical spindle insertion portion 3 protruding from the disk portion 11 inside the pulley portion 9 . The disk portion ...

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Abstract

The present invention relates to a motor with annual coils for elevators, having a stator (6), a rotor (12) and a shell (19) surrounding the components, wherein the shell (19) is provided with a back plate (2) and a rotating body (4); cooling air lead-in holes (13a and 13b) for blowing in cooling air from the outside of the shell (19) are arranged on the shell (19); the stator (6) is provided with teeth parts and a coil part. The cooling air lead-in holes (13a and 13b) are arranged to face to spaces among the teeth parts, and the cooling air is utilized to cool the coil part. The motor with annual coils aims to provide the motor with annual coils for elevators to ensure that a winch can be miniaturized even more through the centralized cooling to the coil part becoming the principal factor of the temperature rise of the winch.

Description

technical field [0001] The present invention relates to a ring-type coil motor for an elevator used in a winch for raising and lowering a car. Background technique [0002] In the traditional device, the top of the hoist is provided with a suction port, and the bottom of the hoist is provided with an exhaust port. The cooling wind passes through the entire interior of the hoist, flows from the suction port to the exhaust port, and cools the hoist (for example, refer to the patent Literature 1). [0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 9-56120 [0004] In the above-mentioned conventional ring coil motor for elevators, since the cooling air flows through the entire inside of the hoist from the suction port to the exhaust port, it is not possible to centrally cool the coil portion which is the main factor for the temperature rise of the hoist, and it is necessary to The space for cooling the hoist is large, and it is difficult to downsize the hoi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/14
Inventor 长谷川觉
Owner MITSUBISHI ELECTRIC CORP