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Motor and motor manufacturing method

A technology made of motors and resins, applied to the manufacture of motor generators, casings/covers/supports, electrical components, etc., to achieve the effect of ensuring water resistance

Pending Publication Date: 2021-03-30
NIPPON DENSAN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above problems become more significant

Method used

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  • Motor and motor manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach >

[0024]

[0025] figure 1 It is a vertical cross-sectional view of the motor 1 according to the first embodiment of the present invention.

[0026] The motor 1 is mounted, for example, in an automobile, and is used as a driving source for generating a driving force of an electric power steering device. However, the motor of the present invention can also be used for purposes other than power steering. For example, the motor of the present invention can also be used as a driving source for other parts of an automobile such as a transmission device, a brake device, an engine cooling fan, or an oil pump. In addition, the motor of the present invention may be mounted on home appliances, OA equipment, medical equipment, etc., and generate various driving forces.

[0027] like figure 1 As shown, the motor 1 has a stationary part 2 and a rotating part 3 . The stationary unit 2 is fixed to a housing of a device to be driven. The rotating part 3 is supported so as to be rotatable...

no. 2 Embodiment approach >

[0054]

[0055] figure 2 It is a perspective view of a motor 1A according to a second embodiment of the present invention. image 3 is a plan view of the motor 1A. Figure 4 It is a longitudinal sectional view of the motor 1A. in addition, Figure 4 Yes image 3 The cross-sectional view at position A-A in .

[0056] This motor 1A is mounted in, for example, an automobile, and is used as a driving source for generating a driving force of a transmission device. However, the motor of the present invention can also be used for applications other than transmission devices. For example, the motor of the present invention can also be used as a drive source for other parts of an automobile such as an electric power steering device, a brake device, an engine cooling fan, or an oil pump. In addition, the motor of the present invention may be mounted on home appliances, OA equipment, medical equipment, etc., and generate various driving forces.

[0057] like Figure 4 As shown...

no. 3 Embodiment approach >

[0099]

[0100] Image 6 It is a perspective view of the motor 1B of 3rd Embodiment of this invention. Figure 7 It is a longitudinal sectional view of the motor 1B.

[0101] The motor 1B is mounted on, for example, an automobile, and is used as a driving source for generating a driving force of a braking device. However, the motor of the present invention can also be used for applications other than braking devices. For example, the motor of the present invention can also be used as a drive source for other parts of an automobile such as an electric power steering device, a transmission device, an engine cooling fan, or an oil pump. In addition, the motor of the present invention may be mounted on home appliances, OA equipment, medical equipment, etc., and generate various driving forces.

[0102] like Figure 7 As shown, the motor 1B has a stationary part 2B and a rotating part 3B. The stationary unit 2B is fixed to a housing of a device to be driven. The rotating pa...

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PUM

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Abstract

The invention provides a motor and a motor manufacturing method. The motor has a stator, a rotor, a housing, and a cover. The stator is held in the housing. The rotor is housed inside the housing. Thecover covers an upper portion of the housing. At least an upper end portion of the housing and the cover are made of resin. Thus, the weight of the motor can be reduced. In addition, the housing andthe cover are fixed by an annular welding part which is continuous in the circumferential direction. As a result, it is possible to ensure waterproofness of the motor.

Description

technical field [0001] The present invention relates to a motor and a method of manufacturing the motor. Background technique [0002] Conventionally, various motors have been mounted on transportation equipment such as automobiles. For example, Japanese Patent Application Laid-Open No. 2016-34203 describes a motor that outputs steering assist torque of an electric power steering system. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2016-34203 [0004] In such a motor, in many cases, a stator and a rotor are housed inside a case composed of a metal case and a metal cover. However, using a metal case and cover increases the weight of the motor. [0005] In addition, in conventional motors, water droplets are prevented from entering the motor by disposing sealing members such as O-rings at the boundary between the case and the cover. However, if a sealing member is used, the number of parts of the motor increases. In addition, in order to arrange the sealing m...

Claims

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Application Information

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IPC IPC(8): H02K5/02H02K5/10H02K15/14
CPCH02K5/02H02K5/10H02K15/14
Inventor 河本达郎藤原久嗣佐藤留介牧野隆之则兼佑树三分一浩司服部隆志
Owner NIPPON DENSAN CORP
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