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Superconducting motor

A technology of superconducting motors and superconducting wires, applied in the usage of superconducting elements, electromechanical devices, electrical components, etc., can solve problems such as time-consuming, large circumferential and axial temperature gradients, and difficult cooling

Inactive Publication Date: 2011-11-16
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the case of cooling a stator coil of a superconducting motor using a refrigerator, it takes much time if the coil formed of a superconducting wire rod is cooled to a target ultra-low temperature via other parts such as a stator core having a large heat capacity to cool all coils to the target ultra-low temperature
In addition, in a structure in which the cooling portion of the refrigerator is in contact with only a part of the outer peripheral surface of the stator core for cooling, it is difficult to uniformly cool the portion of the stator core radially opposed to the portion to be cooled of the stator core and the portion provided on the same stator core portion. coils, and thus large circumferential and axial temperature gradients may occur depending on the thermal conductivity of the individual parts

Method used

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Embodiment Construction

[0035] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that shapes, materials, values, directions, etc. indicated in the following description of each exemplary embodiment are merely examples for facilitating understanding of the present invention, so that they can be used according to various factors such as the use of the product, the use of the The purpose of the product and the specifications of the product are subject to appropriate changes.

[0036] figure 1 is a sectional view showing the superconducting motor 10 of the first embodiment of the present invention, which is taken along the axial direction of the superconducting motor 10 and also shows a part of the side of the superconducting motor 10 . figure 2 is along figure 1 The cross-sectional view of the superconducting motor 10 taken along the line I-I is shown (it should be noted that the hatching of the stator core...

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Abstract

A superconducting motor (10) is provided with: a rotor (12) that is rotatably supported; a stator (14) that is provided around the rotor (12) and that is provided with a plurality of coils (34) that are respectively formed of superconducting wires (74) and that are wound at an inner periphery of a stator core (30); and a refrigerator (16) having a cooling portion (58) for cooling the plurality of coils (34). The cooling portion (58) of the refrigerator (16) is in contact with one end portions (74U, 74V, 74W) of respective phase coils (34, 34V, 34W).

Description

technical field [0001] The present invention relates to a superconducting motor, and more particularly to a superconducting motor provided with a refrigerator for cooling a coil formed of a superconducting wire. Background technique [0002] Recently, a lot of attention has been focused on electric vehicles (hereinafter referred to as "EVs") that run on the driving force generated by an on-board motor powered by an on-board secondary battery so as not to emit carbon dioxide, that is, "zero emissions" . In addition, hybrid electric vehicles (hereinafter, referred to as “HEV”) that operate using both an engine and a motor as a driving force source for propelling the vehicle have become increasingly popular. [0003] Motors used in EVs and HEVs such as the above are required to be small in size and high in output because they are installed in a limited space. In order to maintain the desired output performance of the motor, it is critical to suppress the temperature rise of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K55/00
CPCH02K55/02H02K9/22Y02E40/622H02K9/223
Inventor 水谷良治大桥义正奥村畅朗石田贤司
Owner TOYOTA JIDOSHA KK