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...

Examples

Embodiment 1

[0050] Such as figure 1 As shown in —4, a motor cooling air duct that improves the sealing performance and fatigue performance includes an external flange 4, a cloth square tube 2, and a rectangular rib frame 3; the external flange 4 includes a rectangular frame-shaped flange base plate 1, and the layout The square tube 2 is lined on a number of rectangular ribs 3 to form a flexible square tube. The rectangular perimeters at both ends of the square tube 2 are sealed with a rectangular frame edge of a flange substrate 1 to form an air duct. The above-mentioned square tube 2 is made of an inner layer. 5 and the outer layer of cloth 6, the rectangular rib frame 3 is lined between the inner layer of cloth 5 and the outer layer of cloth 6. On the one hand, compared with the motor cooling air duct made of single-layer cloth pipe, the air duct made of double-layer cloth square pipe has a significantly longer service life; On the one hand, it is convenient to find out the problems of...

Embodiment 2

[0078] Such as Figure 8 As shown, the rectangular frame-shaped external flange 4 is different from the first embodiment in that: four bolt holes 14 for fastening connection with the object flange are respectively arranged at four right-angle parts of the external flange 4; Two sealing flanges 15 are provided between two adjacent bolt holes 14 . This is mainly for when the length of the two short sides of the rectangular external flange is long, the middle area of ​​the short side is far away from the fastener, and the fastening pressure is not enough when docking with the target flange, resulting in poor airtightness.

Embodiment 3

[0080] Such as Figure 9 As shown, the rectangular frame-shaped external flange 4 differs from the first embodiment in that only one sealing flange 15 is provided on the two opposite long sides.

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...

Examples

Embodiment 1

[0050] Such as figure 1 As shown in —4, a motor cooling air duct that improves the sealing performance and fatigue performance includes an external flange 4, a cloth square tube 2, and a rectangular rib frame 3; the external flange 4 includes a rectangular frame-shaped flange base plate 1, and the layout The square tube 2 is lined on a number of rectangular ribs 3 to form a flexible square tube. The rectangular perimeters at both ends of the square tube 2 are sealed with a rectangular frame edge of a flange substrate 1 to form an air duct. The above-mentioned square tube 2 is made of an inner layer. 5 and the outer layer of cloth 6, the rectangular rib frame 3 is lined between the inner layer of cloth 5 and the outer layer of cloth 6. On the one hand, compared with the motor cooling air duct made of single-layer cloth pipe, the air duct made of double-layer cloth square pipe has a significantly longer service life; On the one hand, it is convenient to find out the problems of...

Embodiment 2

[0078] Such as Figure 8 As shown, the rectangular frame-shaped external flange 4 is different from the first embodiment in that: four bolt holes 14 for fastening connection with the object flange are respectively arranged at four right-angle parts of the external flange 4; Two sealing flanges 15 are provided between two adjacent bolt holes 14 . This is mainly for when the length of the two short sides of the rectangular external flange is long, the middle area of ​​the short side is far away from the fastener, and the fastening pressure is not enough when docking with the target flange, resulting in poor airtightness.

Embodiment 3

[0080] Such as Figure 9 As shown, the rectangular frame-shaped external flange 4 differs from the first embodiment in that only one sealing flange 15 is provided on the two opposite long sides.

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