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System and method of diagnosis through detection of mechanical waves in refrigeration systems and/or household appliances

A technology for refrigeration systems and household appliances, applied in the field of diagnostic systems

Inactive Publication Date: 2010-03-24
EMPRESA BRASILEIRA DE COMPRESSORES SA (EMBRACO)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0019] Because of this gap in the prior art, there is currently no refrigeration system compressor or other rotating component that is diagnosed by a diagnostic system or method that detects a fault and uses a device that detects compressor internal and external Alarms require preventive maintenance

Method used

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  • System and method of diagnosis through detection of mechanical waves in refrigeration systems and/or household appliances
  • System and method of diagnosis through detection of mechanical waves in refrigeration systems and/or household appliances

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Embodiment Construction

[0036] Before beginning to describe the system and its method itself, it is first necessary to describe the various concepts and features involved in the subject matter of the present invention, grouped into the following subject matter.

[0037] Refrigeration systems and household appliances

[0038] The operating conditions of the refrigeration system diagnosed by the method and system of the present invention can be used for different refrigeration purposes, such as: commercial refrigerators, domestic refrigerators, freezers, air conditioners, and the like. The methods and systems of the present invention can also be used for other possible uses than the examples shown.

[0039] Preferably and conceptually, the refrigeration system to be diagnosed is defined as a system comprising the basic refrigeration elements, namely: compressor, condenser, expansion device and evaporator, and their operation as in the prior art.

[0040] Furthermore, the present invention also consi...

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Abstract

The present invention relates to a system and a method of diagnosis for a refrigeration system and / or household appliance which, based on a multiplicity of physical magnitudes detected, determine andinform the operating condition of said refrigeration system and / or of its components. Basically, the magnitudes are divided into two groups, namely: (i) those from which spectral signatures will be generated (magnitudes relating to mechanical vibrations); and (ii) magnitudes from which spectral signatures will not be generated. The spectral signatures are compared with the standard signatures, andthe diagnosis is provided based on this comparison. After the operating condition has been diagnosed, it is stored in a database, and a record of the system operation is updated. The operating conditions are made available for viewing, and based on the record viewed, it is possible to determine whether or not the refrigeration system and / or household appliance and the components thereof are malfunctioning or not. The application further describes a compressor whose diagnosis can' be determined by the method and system of diagnosis according to the present invention.

Description

[0001] This application claims priority from Brazilian Patent No. PI702369-3, filed May 29, 2007, the disclosure of which is incorporated herein by reference. technical field [0002] The present application relates to a diagnostic system and method that enables the operating conditions of household appliances, refrigeration systems and / or components thereof to be visualized immediately or at a later time. The invention further relates to a compressor diagnosed by the diagnostic system and method of the invention. Background technique [0003] Refrigeration systems are generally well known by most people. Therefore, since these systems are desirable in many situations, it is of interest to develop methods by which their operation can be manipulated, controlled or diagnosed. However, before mentioning some types of methods of controlling refrigeration systems, typical prior art examples of refrigeration systems and their applications need to be described. [0004] Typically...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/00
CPCF25B49/005F25B49/00F25D29/00
Inventor M·G·施沃茨
Owner EMPRESA BRASILEIRA DE COMPRESSORES SA (EMBRACO)
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