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Rotating electric machine

A technology for rotating electrical machines and rotors, applied in electromechanical devices, electrical components, electrical components, etc., can solve the problems of temperature sensor deformation, reduced reliability of rotating electrical machines, temperature deviation of stator coils, etc., to suppress deformation, suppress offset, improve The effect of reliability

Pending Publication Date: 2022-04-22
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a technical problem that the force with which the temperature sensor is pressed by the coil conductor varies even if the coil conductor is pressed with the same force due to the difference in the opening amount of the bent portion before the temperature sensor is inserted and the difference in the hardness of the coil conductor. , due to the inability to fully press the temperature sensor, the installation position of the temperature sensor relative to the extension direction of the coil conductor is shifted
[0009] In addition, there are technical problems as follows: due to the deviation of the installation position of the temperature sensor, the measured temperature of the stator coil is deviated, the accurate temperature of the stator coil cannot be measured, and the reliability of the temperature sensor is reduced
In addition, when the temperature sensor is clamped and held in the gap between the bending parts of the coil, when both sides of the coil conductor are pressed by the pressing member, the temperature sensor may be loaded due to excessive pressing of the pressing member, and the temperature may decrease. The sensor is deformed
When the temperature sensor is deformed, the temperature sensor cannot measure the accurate temperature of the stator coil, and there is a technical problem that the reliability of the temperature sensor is reduced.
In addition, if the reliability of the temperature sensor is lowered, the occurrence of damage to components included in the rotating electrical machine cannot be suppressed, so there is a technical problem that the reliability of the rotating electrical machine is lowered.

Method used

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  • Rotating electric machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0066] figure 1 It is a perspective view showing the outline of the rotating electrical machine 1 according to Embodiment 1, figure 2 is a cross-sectional view showing the outline of the rotating electrical machine 1 and parallel to the axial direction of the rotating electrical machine 1, image 3 It is to install the temperature sensor 11 and the mounting member 13 of the rotating electrical machine 1, by figure 1 The perspective view of the main part shown enlarged by the part enclosed by the dotted line, Figure 4 is a perspective view of the additional wire 101, the temperature sensor 11, and the mounting member 13 of the rotating electrical machine 1, Figure 5 is a front view of the additional wire 101 of the rotating electrical machine 1, the temperature sensor 11 and the mounting member 13, Figure 6 is a plan view of the additional wire 101, the temperature sensor 11 and the mounting member 13 of the rotating electrical machine 1, Figure 7 is in Figure 6 A cr...

Embodiment approach 2

[0081] The rotating electrical machine 1 according to Embodiment 2 will be described. Figure 8 is the additional wire 101, the temperature sensor 11, and the mounting member 13 of the rotating electric machine 1 according to the second embodiment. Figure 6 A cross-sectional view cut at the same position as the A-A cross-section, Figure 9 is in Figure 8 The cross-sectional view of the additional line 101 and the mounting member 13 cut off at the position of the B-B cross-section, Figure 10 is in Figure 8 A sectional view of the additional line 101 and another mounting member 13 cut at the B-B section position of . The rotating electrical machine 1 according to the second embodiment is configured such that the mounting member 13 also covers the surface 102 c of the main body 102 opposite to the surface provided with the concave portion 104 .

[0082] Such as Figure 8 As shown, the attachment member 13 is attached to the main body 102 so as to cover the entire portion...

Embodiment approach 3

[0086] The rotating electrical machine 1 according to Embodiment 3 will be described. Figure 11 is the additional wire 101, the temperature sensor 11, and the mounting member 13 of the rotating electric machine 1 according to the third embodiment. Figure 6 A cross-sectional view cut at the same position as the A-A cross-section. The rotating electrical machine 1 according to Embodiment 3 has a configuration in which the arrangement of the sensor unit 12 of the temperature sensor 11 is different.

[0087] The sensor unit 12 of the temperature sensor 11 is arranged at a position facing the bottom 104 a of the recess 104 . In Embodiment 1, such as Figure 7 As shown, the sensor part 12 of the temperature sensor 11 is arranged at the end of the recessed part 104 . If the arrangement of the sensor part 12 deviates from the end part of the recessed part 104 toward the bottom 104 a side, the distance between the sensor part 12 and the main body part 102 becomes longer. When the...

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PUM

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Abstract

A rotary electric machine suppresses the deviation of the installation position of a temperature sensor and the deformation of the temperature sensor so as to improve the reliability of the temperature sensor and the rotary electric machine. Comprises: a rotor having a field core wound with a field winding; the stator is provided with a stator iron core and a stator coil; the temperature sensor is used for detecting the temperature of the stator coil; and an attachment member that attaches the temperature sensor to the stator coil, a portion of a coil conductor extending linearly of the stator coil being recessed in a direction orthogonal to an extending direction of the coil conductor, and having a recessed portion in a surface of the coil conductor. The sensor portion of the temperature sensor is disposed on the side of the coil conductor where the recess is provided, and the mounting member has the sensor portion of the temperature sensor embedded therein and has a protruding portion abutting against the recess.

Description

technical field [0001] The present application relates to a rotating electric machine. Background technique [0002] A rotating electrical machine includes a rotor and a stator having a stator core and stator coils. The rotating electrical machine operates as an electric motor that drives the internal combustion engine, and the rotating electrical machine functions as a generator that is driven by the internal combustion engine to generate electricity. When the rotating electric machine operates as a motor, current flows through the stator coils. At this time, when the stator coil generates heat due to the current flowing through the stator coil, the temperature of the stator coil rises. If the temperature of the stator coil rises excessively, the stator coil and components provided around the stator coil may be damaged. Therefore, a temperature sensor that detects the temperature of the stator coil is installed in the stator coil, and the current flowing to the stator co...

Claims

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Application Information

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IPC IPC(8): H02K11/25H02K1/16
CPCH02K11/25H02K1/165
Inventor 浴野哲史日野辰郎鲇川直彦石川将司中野正嗣久保田健长谷川和哉
Owner MITSUBISHI ELECTRIC CORP
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