A motor cooling air duct with improved fatigue characteristics and sealing characteristics and its manufacturing method

Abstract

The invention discloses a motor cooling air duct for improving fatigue property and sealing property and a manufacturing method thereof. The motor cooling air duct comprises an external flange, a cloth square tube and rectangular rib frames; the external flange comprises a rectangular frame-shaped flange base plate, the cloth square tube is lined on a plurality of rectangular rib frames to form aflexible square tube, the rectangular peripheries of two ends of the cloth square tube are respectively sealed and fixedly connected with the rectangular frame edges of one flange base plate to form an air channel, the cloth square tube is composed of inner-layer cloth and outer-layer cloth, and the rectangular rib frames are lined between the inner-layer cloth and the outer-layer cloth; the external flange further comprises a veneer silica gel layer bonded on the flange substrate, a folding edge bonded on the veneer silica gel layer, and an external silica gel layer bonded on the folding edgeand provided with a sealing flange. The motor cooling air duct for improving fatigue property and sealing property and the manufacturing method thereof has the advantages that the service life of theair channel is obviously prolonged; the air pipe of the air channel is connected and sealed with the external flange at the two ends, so that the sealing effect is better and firmer; the sealing effect is better and the operation of fastening connection is very simple and convenient after the external flange is fastened and connected with the flange of the connection object.

Description

technical field [0001] The invention relates to the field of electric machinery, in particular to a motor cooling air duct with improved sealing properties and fatigue properties and a manufacturing method. Background technique [0002] The heating of the motor is a normal phenomenon during the operation of the motor. Generally, a motor with low power can solve the heat dissipation problem during its own operation only by relying on its own heat dissipation device when the ambient air circulation is good. However, for high-power motors, such as train traction motors installed on bogies, even if there is a very good air circulation environment when the train is running, it cannot meet the heat dissipation problem of its own operation, and air push including cooling air ducts is required Only by blowing air to the interior of the train traction motor to dissipate heat can the device meet the heat dissipation and cooling problems of the train traction motor operation. [0003...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is mainly: the problem that the single-layer cloth air duct of the motor cooling air duct is scrapped after the single-layer cloth is broken due to the poor fatigue resistance of the single-layer cloth

The second is: the problem of poor consolidation reliability between the two ends of the air duct and the external flange; the poor sealing of the external flange and the flange of the external object, and the difficulty of assembly and disassembly

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