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Motorized blower assemblies, and methods of making same

A blower and motor technology, applied in the direction of electric components, manufacturing motor generators, electrical components, etc., can solve the problems of blower efficiency reduction, achieve efficient and quieter blower operation, reduce tolerance accumulation, and reduce tolerance accumulation.

Inactive Publication Date: 2014-08-27
MOOG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increased clearance between the blower wheel or impeller and the casing results in reduced blower efficiency

Method used

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  • Motorized blower assemblies, and methods of making same
  • Motorized blower assemblies, and methods of making same
  • Motorized blower assemblies, and methods of making same

Examples

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Embodiment Construction

[0048] First of all, it should be clearly understood that in multiple drawings, the same reference numerals are used to indicate the same structural elements, parts or surfaces, because these elements, parts or surfaces can be further described or explained by the specification as a whole, and its detailed description is a whole. Unless otherwise indicated, the drawings are intended to be read in conjunction with the specification (eg, cross-section lines, arrangement of parts, scale, degrees, etc.) and should be understood as an integral part of the description of the invention. As used hereinafter, the terms "horizontal", "vertical", "left", "right", "upper" and "lower" and their derivatives of adjectives and adverbs (such as "horizontally", "rightwardly “downward”, “upwardly”, etc.), indicate only the orientation of the structure shown when a particular drawing is oriented towards the reader. Similarly, the terms "inwardly" and "outwardly" basically refer to the orientatio...

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Abstract

A motorized blower assembly (1) is provided for use in respiratory therapy applications. The active motor sub-assemblies (6, 7, 9) are encapsulated within an over-molded thermoplastic material (5) with selected vibration-dissipative and thermally-conductive properties. The resulting blower assembly operates at reduced sound levels of 1.0-3.0 dB, and with an increased efficiency of 3-9% over currently- marketed blowers of similar size and air flow capability.

Description

technical field [0001] The present invention relates generally to (a) improved motorized blower assemblies (e.g., for respiratory therapy for the treatment of sleep apnea), (b) improved devices and assemblies of various blower assembly components for use in assembly of the blower assembly components Accurate alignment and retention, and (c) improved methods of making such blowers. Background technique [0002] A sleep apnea machine consists of a specially designed motor, motor controls, and an impeller that moves air into and out of the patient's breathing system. [0003] Blowers used for respiratory therapy need to be quiet due to their proximity to the patient. The sound pressure level of blowers currently on the market is about 42dB. Inherent structural noise sources found in electric motors include turbine disturbances, bearing displacement, and magnetoelasticity of electromagnetic materials. The magnetic force between the rotor and stator also interacts with the mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/08H02K1/18H02K5/24H02K5/173H02K15/12F04D29/66
CPCF04D25/0606H02K1/185F04D29/668H02K5/1735H02K15/14Y10T29/49236F04D29/023F04D25/02H02K15/12H02K5/24H02K5/08H02K5/02A61M16/0066F04D17/16F05D2300/43F05D2300/5024F05D2260/96
Inventor J·M·卡利科J·S·贝万D·R·迈科伊
Owner MOOG INC
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