Ventilation channel steel, its manufacturing method, ventilation structure and motor

A ventilation channel steel and ventilation channel technology, which is applied in the field of ventilation structure, motor and ventilation channel steel, can solve the problems of large wind resistance, unfavorable heat dissipation of ventilation channel steel, small contact area of ​​cooling air, etc., and achieve small wind resistance and good cooling and heat dissipation effect , The effect of simple manufacturing process

Active Publication Date: 2018-04-27
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The design of traditional ventilation channel steel and ventilation structure does not pay special attention to the influence of ventilation channel steel on the cooling effect of cooling gas
The traditional ventilation channel steel only plays the role of supporting and separating the ventilation trench between the adjacent iron core segments, but the inventor found through analysis and thinking that the interior of the traditional ventilation channel steel is a solid structure, which will not only cause greater wind resistance, but also The contact area with the cooling air is small, which is not conducive to the heat dissipation of the ventilation channel steel

Method used

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  • Ventilation channel steel, its manufacturing method, ventilation structure and motor
  • Ventilation channel steel, its manufacturing method, ventilation structure and motor
  • Ventilation channel steel, its manufacturing method, ventilation structure and motor

Examples

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Embodiment 1

[0046] Such as figure 1 and figure 2 As shown, they are respectively a three-dimensional structure schematic diagram and a cross-sectional shape schematic diagram of the ventilation channel steel in Embodiment 1 of the present invention. The ventilation channel steel according to Embodiment 1 of the present invention comprises a ventilation channel steel body 11, and at least two ventilation ducts 12 are arranged in the ventilation channel steel body 11 along the direction of the ventilation channel steel body 11, and the at least two ventilation ducts 12 are composed of At least one cooling rib 13 is separated.

[0047] The ventilation channel steel in Embodiment 1 of the present invention is different from the traditional ventilation channel steel commonly used, and the design of its ventilation channel 12 and cooling rib 13 can at least bring the following advantages:

[0048] 1. The ventilation channel 12 can divert part of the cooling gas and has the effect of guiding ...

Embodiment 2

[0054] Such as image 3 , which is a schematic diagram of the cross-sectional shape of the ventilation channel steel in Embodiment 2 of the present invention. The difference between the ventilation channel steel of this embodiment and the ventilation channel steel of Embodiment 1 is that the number of cooling ribs 13 in this embodiment is two, and the number of ventilation channels 12 is three. Compared with Embodiment 1, this embodiment has a larger heat dissipation area and higher structural strength.

Embodiment 3

[0056] Such as Figure 4 , which is a schematic diagram of the cross-sectional shape of the ventilation channel steel in Embodiment 3 of the present invention. In this embodiment, the number of cooling ribs 13 is also two, and the number of air ducts 12 is also three. The difference is that the cross section of the air ducts 12 in this embodiment is triangular, and the triangular structure is more stable. , higher mechanical strength.

[0057] Specifically, the upper edges of the two cooling ribs 13 in this embodiment share the same side and are connected to the middle of the top plate 111 , and the lower edges of the two cooling ribs 13 are respectively connected to the two sides of the bottom plate 112 and the lower edges of the side plates 113 . However, it can also be reversed so that the lower edges of the two heat dissipation ribs 13 are co-existing and connected to the middle of the bottom plate 112, and the upper edges of the two heat dissipation ribs 13 are respectiv...

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Abstract

The invention provides a ventilation steel channel, a manufacturing method of the ventilation steel channel, a ventilation structure and a motor. The ventilation steel channel provided by the invention comprises a ventilation steel channel body; at least two ventilation ducts are formed in the ventilation steel channel body in the direction of the ventilation steel channel body; the at least two ventilation ducts are separated by at least one radiating rib. According to the ventilation steel channel provided by the invention, the ventilation ducts realize split-flow of a part of cooling gas and have a wind guide effect, and thus, the wind resistance of the ventilation steel channel can be reduced and the resistance of a cooling system is reduced. Moreover, the ventilation ducts and the radiating rib can increase a contact area with the cooling gas, so that the heat dissipating area of the ventilation steel channel is increased, heat dissipation of the ventilation steel channel can be reinforced and the cooling gas can more rapidly take away heat transferred to the ventilation steel channel from windings.

Description

technical field [0001] The invention relates to cooling of motors, in particular to ventilation channel steel, its manufacturing method, ventilation structure and motor. Background technique [0002] When the motor (including the motor and generator) is running, energy loss will be generated on the coil, iron core and other components, and this part of the loss will eventually be dissipated in the form of heat energy. If the ventilation design of the motor is unreasonable, it will cause the temperature rise of the motor Excessively high or uneven local temperature rise. Excessive temperature rise will lead to insulation aging, and long-term operation will reduce the electrical performance of the insulation, while local uneven temperature rise will generate large thermal stress, resulting in permanent damage to the motor structure, and eventually lead to motor failure. Therefore, reducing the temperature rise of the motor is of great significance for improving the safety mar...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H02K1/20H02K1/32H02K15/02
Inventor刘军卫张新丽
OwnerBEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD