Commutator and motor

Abstract

The invention provides a commutator and a motor. The commutator comprises a commutator base body and a plurality of commutator segments, wherein the plurality of commutator segments are arranged around the commutator base body along the circumferential direction, and the adjacent commutator segments are provided with a first gap section and a second gap section therebetween which are adjacent to each other along the circumferential direction; each commutator segment is provided with a winding wiring portion at the second end along the axial direction, and the first end of the commutator segment along the axial direction is away from the winding wiring portion; the width L2 of the second gap section between the second ends of the adjacent commutator segments is greater than the width L1 ofthe first gap section between the first ends; and the width L2 of the second gap section is less than the width L3 of the spacing between the winding wiring portions of the adjacent commutator segments. According to the technical scheme of the invention, the setting of the width-varying gap between the adjacent commutator segments increases the spacing of burr-prone areas during the processing process so as to avoid the risk of short circuits one the one hand; and on the other hand, the working area of the commutator is kept to have a narrow spacing, thereby improving the EMC, reducing the airnoise and vibration, and enabling the motor performance to be more stable.

Description

technical field

[0001] The present application relates to the field of motors, in particular to a commutator. Background technique

[0002] The commutator is an important component in the armature of DC motors and AC commutator motors. It acts as a commutation when the motor turns, so that the motor can continue to turn. As an indispensable and important basic equipment in industry, transportation, national defense and daily life, the downstream industry of motors includes almost all basic industries of the national economy. As one of the core components of the motor, the commutator is also growing with the development of the motor industry.

[0003] At present, it has been confirmed that the noise, vibration, and EMC of the motor are proportional to the width of the gap of the commutator segment, that is, the smaller the gap width, the better the EMC, and the smaller the noise and vibration. However, considering the process, the gap width cannot be arbitrarily reduced in...

Examples

Embodiment Construction

[0013] Please refer to Figure 1 to Figure 4 As shown, several embodiments of commutators according to the present concept are provided. in, Figure 1 to Figure 2 Schematically shows the composition of basic components and the dimensional relationship of key parts of the first embodiment of the commutator. and image 3 and Figure 4 The composition of the basic components and the dimensional relationship of key parts of the other two embodiments of the commutator are shown respectively.

[0014] see figure 1 and figure 2 , the commutator 100 includes a commutator base 110 and a plurality of commutator segments 120 . Wherein, a plurality of commutator segments 120 are arranged around the commutator base body 110 in the circumferential direction. After the assembly is completed, the plurality of commutator segments 120 generally form a cylindrical structure. There is a gap between adjacent commutator segments 120 along the circumferential direction, and the gap includes...

technical field

[0001] The present application relates to the field of motors, in particular to a commutator. Background technique

[0002] The commutator is an important component in the armature of DC motors and AC commutator motors. It acts as a commutation when the motor turns, so that the motor can continue to turn. As an indispensable and important basic equipment in industry, transportation, national defense and daily life, the downstream industry of motors includes almost all basic industries of the national economy. As one of the core components of the motor, the commutator is also growing with the development of the motor industry.

[0003] At present, it has been confirmed that the noise, vibration, and EMC of the motor are proportional to the width of the gap of the commutator segment, that is, the smaller the gap width, the better the EMC, and the smaller the noise and vibration. However, considering the process, the gap width cannot be arbitrarily reduced in...

Examples

Embodiment Construction

[0013] Please refer to Figure 1 to Figure 4 As shown, several embodiments of commutators according to the present concept are provided. in, Figure 1 to Figure 2 Schematically shows the composition of basic components and the dimensional relationship of key parts of the first embodiment of the commutator. and image 3 and Figure 4 The composition of the basic components and the dimensional relationship of key parts of the other two embodiments of the commutator are shown respectively.

[0014] see figure 1 and figure 2 , the commutator 100 includes a commutator base 110 and a plurality of commutator segments 120 . Wherein, a plurality of commutator segments 120 are arranged around the commutator base body 110 in the circumferential direction. After the assembly is completed, the plurality of commutator segments 120 generally form a cylindrical structure. There is a gap between adjacent commutator segments 120 along the circumferential direction, and the gap includes...

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