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Wind-driven generator set, motor and air flow transfer device for motor air gap

A technology of airflow conveying and air gap, which is applied in the direction of wind power motor combination, wind power engine, electromechanical device, etc., and can solve problems such as unsatisfactory effect

Active Publication Date: 2019-01-01
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

[0008] However, the effect of the above-mentioned cooling scheme is still unsatisfactory when cooling the iron core of the generator 500'

Method used

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  • Wind-driven generator set, motor and air flow transfer device for motor air gap
  • Wind-driven generator set, motor and air flow transfer device for motor air gap
  • Wind-driven generator set, motor and air flow transfer device for motor air gap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Please refer to Figure 4 , Figure 4 It is a structural schematic diagram of the first specific embodiment of the inner rotor permanent magnet pole motor provided by the present invention; Figure 5 for Figure 4 The schematic diagram of the motor in the middle; Image 6 for Figure 4 Partial enlarged view of part A in the middle; Figure 7 An end schematic view of an inner rotor permanent magnet pole motor.

[0080] The motor includes a rotor 20 and a stator 10 , the rotor 20 is an inner rotor structure, that is, the rotor 20 is located in the inner cavity of the stator 10 . The stator 10 includes an iron core 101 and a plurality of windings 102 wound on the iron core 101 . The rotating shaft 202 of the rotor 20 is inserted into the end cover of the motor through a bearing 203 . like Image 6 As mentioned above, there is an air gap a between the rotor 20 and the stator 10, and the air gap a extends along the axial direction of the motor, please combine Figure...

Embodiment 2

[0109] Please continue to refer Figure 12 , Figure 12 It is a structural schematic diagram of the second specific embodiment of the inner rotor permanent magnet pole motor provided by the present invention; Figure 13 for Figure 12 Partial enlarged view of part B in the center; Figure 14 for Figure 12 A partial view of the middle annular air distribution chamber 301 and the air gap a.

[0110] The motor structure of this embodiment is basically the same as that of Embodiment 1. The difference from Embodiment 1 is that Embodiment 2 does not provide an annular return chamber 302, but an annular air distribution chamber is provided at both air gap ports of the air gap a. 301. like Figure 12 As shown, the left end and the right end of the air gap a are provided with an annular air distribution chamber 301 . In this way, after the air flows through the annular air distribution chamber 301 and enters the air gap a, it all flows towards the middle of the air gap a. The ...

Embodiment 3

[0117] Please refer to Figure 16 , Figure 16 It is a structural schematic diagram of the third specific embodiment of the inner rotor permanent magnet pole motor provided by the present invention; Figure 17 for Figure 16 Partial enlarged view of part C in the middle; Figure 18 for Figure 16 A partial view of the middle annular air distribution chamber 301 , the air gap a, and the annular return chamber 302 .

[0118] This embodiment is basically the same as Embodiment 1, except that on the basis of Embodiment 1, the airflow conveying device further includes a vortex generator 311 to generate cold airflow or hot airflow and convey it to the air gap a. The principle of generating cold airflow and hot airflow by the vortex generator 311 will be described in detail below.

[0119] like Figure 19 , 20 as shown, Figure 19 for Figure 16 The basic structure of the medium vortex separator 311 and the working principle diagram of the total temperature separation of the...

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Abstract

The invention discloses a wind-driven generator set, a motor and an air flow transfer device for a motor air gap. The air flow transfer device for the motor air gap comprises an annular air distribution chamber; the annular air distribution chamber is located at least one end of the air gap; and the annular air distribution chamber has a transfer opening facing the air gap to as to transfer hot orcold air flow to the air gap. According to the air flow transfer device for the motor air gap, the annular air distribution chamber is arranged at the end of the air gap; required air flow is injected into the annular air distribution chamber, and the annular air distribution chamber can output accumulated air flow to the air gap, so that the air flow can be facilitated to smoothly pass through the air gap, and the flow rate of the air gap can be controlled with easiness, and therefore, the air flow can be effectively outputted into the air gap, and the local resistance of the air flow entering the air gap can be decreased; and the air flow entering the air gap can contact the outer circumference of an entire core, so that the cooling and drying effect of the core can be improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a wind power generating set, a motor, and an airflow conveying device for an air gap of the motor. Background technique [0002] Please refer to Figure 1-2 , figure 1 Schematic diagram of the overall machine layout for cooling the inside of the generator by the air partition wall heat exchanger; figure 2 for figure 1 Schematic diagram of the structural decomposition of the partition wall heat exchanger in . [0003] like figure 1 As shown, the right side of the generator 500' is connected to the impeller 600', the left side is provided with a nacelle 100', and a partition wall heat exchanger 300' is arranged in the nacelle 100', specifically at the tail of the nacelle 100'. The left side of the partition wall heat exchanger 300' is provided with an internal circulation induced draft fan 202', which is driven by an internal circulation drive motor 201', and is also provide...

Claims

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Application Information

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IPC IPC(8): H02K9/14H02K9/18H02K9/26
CPCH02K9/14H02K9/18H02K9/26Y02E10/72F03D80/60F03D9/25F03D80/82F05B2260/221H02K9/12H02K2213/03H02K7/1838H02K9/10H02K5/207F05B2220/706F05B2260/208F05B2260/209H02K9/02H02K9/227
Inventor 马盛骏
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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