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A rotating electric machine and an electric blower having the rotating electrical machine

A technology for rotating electrical machines and armatures, applied in mechanical equipment, machines/engines, non-variable-capacity pumps, etc., can solve problems such as suboptimal lightweight of home appliances, reduced motor performance, and ineffective product lightweight requirements. Achieve the effect of improving the small and lightweight rotating motor and ensuring the workability of winding

Active Publication Date: 2016-08-24
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the configuration of Patent Document 1, since the weight of the field core is the same as conventional ones, it has no effect on the demand for product weight reduction.
In addition, if the motor is downsized, the ratio of the reluctance of the air gap increases, and there is a problem that the performance of the motor decreases.
[0013] In addition, in the configuration of Patent Document 2, the width of the slot opening between the tip of the salient pole of the field core and the edge of the field core is narrowed.
Therefore, in a small motor, there is a problem that the coil enters between the tip of the salient pole and the notch insulating member, and insulation failure is likely to occur.
[0014] In addition, the configuration of Patent Document 3 has the problem that it becomes expensive due to an increase in the necessary amount of the iron core, and furthermore, due to the increase in weight, it is not optimal for reducing the weight of home appliances.

Method used

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  • A rotating electric machine and an electric blower having the rotating electrical machine
  • A rotating electric machine and an electric blower having the rotating electrical machine
  • A rotating electric machine and an electric blower having the rotating electrical machine

Examples

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Embodiment approach 1

[0024] Below, refer to figure 1 , 2 The electric motor and electric blower according to Embodiment 1 of the present invention will be described. In this embodiment, an example of an electric blower that uses a commutator motor as a rotating electric motor, which is included in an electric vacuum cleaner, will be described.

[0025] figure 1 It is a half sectional view of electric blower 1 provided with motor 20 according to Embodiment 1 of the present invention. Such as figure 1 As shown, the electric blower 1 is provided with a motor 20 in a cylindrical frame 2 that is closed on one side and opened in the opposite direction. The motor 20 is a commutator motor, and roughly includes a field magnet (a magnet that generates a magnetic field) 3 and an armature 4 . A bracket 8 and a fan case 9 are attached to cover one side of the opening of the frame 2 .

[0026] The rotation shaft 10 of the armature 4 protrudes from the bracket 8 and enters the fan housing 9 . A centrif...

Embodiment approach 2

[0033] image 3 It is a sectional view of the iron core of the electric motor 30 in Embodiment 2 of this invention. The motor 30 is, like the motor 20 of the first embodiment, a commutator motor used in an electric blower. In comparison with the motor 20 of Embodiment 1, the motor 30 differs from the motor 20 only in the shape of the second side portion 17 of the field core 6 .

[0034] That is, in the present embodiment, the end portion located on the upstream side (upper side in the figure) of the rotation direction of the armature 4 (the direction indicated by the arrow in the figure), that is, the upstream side end portion of the second side portion 17 A slope is provided on the inner peripheral side of the second side portion 17 so that the width L1 of 18a is substantially reduced in the width L2 of the central portion 19 . Furthermore, the width L3 of the downstream end portion 18 b of the second side portion 17 , which is the other end portion, is substantially equal ...

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PUM

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Abstract

The present invention provides a rotating electric machine including an exciting magnet in which an exciting coil is wound around a salient pole of an iron core and an armature disposed among the salient pole. In addition, the core of the field magnet is formed in a square tube shape including a pair of first edge portions having salient poles on the inner surface and a pair of second edge portions connecting ends of the first edge portions to each other. Further, an inclination is provided on the inner peripheral side of each second side portion so that the width of the central portion of the second side portion is smaller than the width of the end portion of the second side portion on the upstream side in the rotational direction of the armature.

Description

technical field [0001] The present invention relates to a rotating electric machine such as a generator or an electric motor, and to an electric blower mounted on an electric vacuum cleaner or the like, and blowing air by rotating a fan by the power of the electric motor. Background technique [0002] Usually, a commutator motor is used as a motor portion of an electric blower mounted on an electric vacuum cleaner. This commutator motor has a field magnet constituted by winding a coil in a tube of a core formed by laminating a plurality of thin steel plates, and an armature rotatably provided in the field magnet. [0003] The current motor of the electric blower mounted on the electric vacuum cleaner is as follows: Figure 4 As shown, a salient pole 105 around which an exciting coil 107 is wound is provided inside the exciting core 106 . The salient pole 105 is formed into a square frame shape by a first side portion 116 extending to both sides and a pair of second side por...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/06F04D25/08
CPCF04D25/08H02K1/06
Inventor 岛崎哲夫藤田克敏上野信人
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD