A motor heat dissipation structure combining the sunken type and the inner rib type
A technology of heat dissipation and combination of motors, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of poor air thermal conductivity, temperature rise, and the distance between the end winding and the casing, etc., to increase the contact area , the effect of reducing temperature rise
Active Publication Date: 2019-08-13
BEIJING JIAOTONG UNIV
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Problems solved by technology
In the current traditional shielded motor structure, the heat at the end of the stator winding can only be transferred through the air at the end. The thermal conductivity of the air is very poor, and the end winding is far away from the casing, so the temperature rise is relatively high.
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[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0023] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
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The invention provides a motor heat radiation structure integrated with an invagination type and an inner fin type. The motor heat radiation structure integrated with an invagination type and an inner fin type is characterized in that a stator and a rotor of a motor are a shielding sleeve structure; a stator casing approaches the end portion winding position and is invaginated to the inside of the motor in the circumferential direction, and heat radiation fins are uniformly distributed in the invaginated part of the casing in the circumferential direction; and the outer surface of the motor end cover is invaginated to the inside, and heat radiation fins are uniformly distributed on the invaginated length of the end cover. By increasing the air contact area between the motor casing and the end portion and by enabling sea water or river water to enter the invaginated part of the casing, the motor heat radiation structure integrated with an invagination type and an inner fin type can reduce temperature rise of the end portion winding.
Description
technical field [0001] The invention relates to the technical field of motor physical structure, in particular to a motor heat dissipation structure combining a sunken type and an inner rib type. Background technique [0002] The stator and rotor working underwater have a motor with a shielding sleeve structure. Sea water and river water flow through the surface of the stator casing and the air gap of the stator and rotor. The cooling effect of the straight section of the motor winding is better, but due to the end winding and the stator The heat exchange between the casing and the shielding sleeve is through air, and the cooling condition of the end winding of the stator is poor, which makes the temperature of the end winding higher and affects the safe operation of the motor. Therefore, how to effectively reduce the temperature rise of the end winding is an important aspect to ensure the stable and safe operation of the motor. In the current traditional shielded motor str...
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IPC IPC(8): H02K5/18H02K5/20
CPCH02K5/18H02K5/20
Inventor 李伟力杜林奎李栋李金阳曹君慈张晓晨沈稼丰李锦洲汪家俊阮晓勇许兰付敏高晗璎周封
Owner BEIJING JIAOTONG UNIV