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Electric motor

A fan cover and fan technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of poor cooling air flow effect, large geometric shape and unreasonable material accumulation, saving space and reducing Vibration and rigidity improvement effect

Active Publication Date: 2008-04-02
SEW-EURODRIVE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The holes are machined into solid material accumulations / protrusions (Anhufung) that are so large or have an unreasonable geometry that the cooling air flow along the ribs is less effective

Method used

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Embodiment Construction

[0022] The present invention is now described in detail with the aid of the accompanying drawings:

[0023] 1 to 6 show the electric machine according to the invention in different views, and FIGS. 7 and 8 show the lower part of the associated terminal box in different views.

[0024] The motor is designed as an electric motor and has a flange 1 with which another device to be driven, such as a transmission or a stirrer, can be connected.

[0025] On its stator housing, the electric machine has cooling ribs 2 which partially have almond-shaped thickenings 3 . The fan guard 4 is arranged on the side opposite to the flange 1 . The terminal box, also called terminal box, consists of a terminal box lower part 5 and a terminal box upper part 6 detachably connected thereto as a cover. The terminal box bottom part 5 has, on its outer side facing the stator housing of the electric machine, a bead 20 which forms a material deposit for machining bores.

[0026] Since the parts of the...

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PUM

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Abstract

The invention relates to an electric motor which comprises a ventilator with a pertaining ventilator cover, said ventilator cover having undulating embossed structures.

Description

technical field [0001] The invention relates to an electric machine. Background technique [0002] Electric machines with fans for self-ventilation and associated fan guards are known. The fan guard is not stackable. And it takes a lot of space inside the warehouse. The blower cover of prior art is designed as circular cover. That is, it is designed as a body of revolution along the axial direction. [0003] Such terminal boxes for electric machines are known, in which the holes are machined from the inside. The wall thickness is chosen to be rather thick, so a lot of material is required for the motor housing. The electric machine is thus heavier and more expensive. [0004] It is also known to have holes in the (near) region of the cooling ribs for mounting screws, for example for fastening a label. The holes are machined into solid material accumulations / protuberances that are so large or geometrically unsuitable that the cooling air flow along the ribs is less eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/14H02K5/18
CPCH02K9/14H02K5/225H02K5/18
Inventor M·德雷克斯勒
Owner SEW-EURODRIVE GMBH & CO KG
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