Unlock instant, AI-driven research and patent intelligence for your innovation.

fan motor

A fan motor and motor technology, applied in the direction of non-variable pumps, axial flow pumps, pump components, etc., can solve the problems of lower shell rigidity, lower natural frequency, uncomfortable vibration or noise, etc., to suppress vibration or noise, Effects of improving rigidity and suppressing the generation of shrinkage cavities

Active Publication Date: 2021-11-09
NIDEC CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the rigidity of the case may decrease, causing uncomfortable vibration or noise
In addition, the natural frequency decreases due to the decrease in the rigidity of the case
As a result, when the fan motor is driven, resonance with the excitation vibration occurs, which may cause uncomfortable vibration or noise

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • fan motor
  • fan motor
  • fan motor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0054]

[0055] figure 1 It is a vertical sectional view of the fan motor 10 of the first embodiment.

[0056] The fan motor 10 is used, for example, as a device that supplies a cooling airflow to a room such as a server room where home appliances such as refrigerators and a plurality of electronic devices are disposed. This fan motor 10 may be used alone, or a plurality of fan motors 10 may be combined and used simultaneously. For example, in one server room, a plurality of fan motors 10 may be installed and driven simultaneously.

[0057] like figure 1 As shown, the fan motor 10 has a motor 1 , an impeller 4 and a housing 5 . The fan motor 10 is an axial fan that generates an airflow downward along the central axis 9 . When the fan motor 10 is driven, air is sucked in from the suction side, that is, the upper side of the fan motor 10 , passes through the wind tunnel 50 in the housing 5 , and is discharged to the exhaust side, that is, the lower side of the fan motor ...

no. 2 Embodiment approach

[0091]

[0092] Next, a second embodiment of the present invention will be described. Figure 13 It is a vertical sectional view of the fan motor 10 of the second embodiment. Figure 14 It is a perspective view of the housing 5B of the second embodiment. Figure 15 It is a side view of the housing 5B of the second embodiment. In addition, in the following description, differences from the first embodiment will be mainly described, and overlapping descriptions of parts equivalent to the first embodiment will be omitted.

[0093] like Figure 13 As shown, the fan motor 10B has a motor 1B, an impeller 4B, and a casing 5B. The motor 1B has: the stationary part 2B which has the stator 22B; and the rotating part 3B which rotates centering on the center axis|shaft 9B extended up and down. The stationary part 2B is relatively stationary with respect to the device or the like in which the fan motor 10B is disposed. The rotating part 3B is supported so as to be rotatable about a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The fan motor has a motor, an impeller and a housing. The motor includes: a stationary portion having a stator; and a rotating portion that rotates around a central axis extending up and down. The impeller has a plurality of blades and rotates together with the rotating part. The housing internally houses at least a portion of the motor and impeller. The housing has a cylindrical portion, a flange portion, and one or more ribs. The cylindrical portion is cylindrical, extends in the axial direction, and accommodates at least a part of the motor and the impeller inside. The flange portion protrudes radially outward from the upper end portion or the lower end portion of the cylindrical portion. The rib is columnar and extends from the flange on the outer peripheral surface of the cylindrical portion. The ribs are inclined relative to the axial direction.

Description

technical field [0001] The present invention relates to a fan motor. Background technique [0002] Conventionally, there is known an axial fan motor that rotates an impeller by a driving force of the motor to generate an airflow in the axial direction. Axial flow fan motors are installed in, for example, home appliances, OA equipment, transportation equipment, etc., and are used for the purpose of cooling electronic components or circulating air in equipment casings. In addition, fan motors are sometimes used in air circulation in server rooms where a plurality of electronic devices are located. [0003] In order to increase the air volume of the fan motor, efforts have been made to increase the size of the impeller. However, the fan motor will be enlarged. If the size of the impeller is increased without increasing the size of the fan motor, the thickness of the casing of the fan motor will be reduced. As a result, the rigidity of the housing may decrease, causing uncom...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/52
CPCF04D25/0613F04D29/522F04D13/06F04D19/002F04D29/52
Inventor 北邑有希雄松田成胜
Owner NIDEC CORP