Motor testing equipment and methods for motor testing.

Abstract

OCR06WT Motor inspection equipment includes a projection section that projects a patterned light onto the motor, including: The coil is shaped by a guide wire wound around a core, while the imaging part captures the pattern of light. The image is projected onto the coil and a pattern is obtained; the 3D data generation section creates 3D shape data. The coil section uses the obtained pattern image, and the verification section compares the obtained 3D shape data. Built using reference data that defines the 3D shape of a typical motor's coil section, and outputs it as a result. Check for differences between the external shape of the coil section in the 3D shape data and the reference data.

Claims

OCR06WT1. The motor inspection equipment consists of: a projection section, which is designed to project a patterned light onto the motor, including the motor's windings formed by guide wires wound on a core; an imaging section, which is designed to capture the patterned light projected onto the windings and obtain a pattern image; a 3D data generation section, which is designed to create a 3D shape data of the windings using the obtained pattern image; and an inspection section, which is designed to compare the generated 3D shape data with a reference 3D shape data of a typical motor's windings, and to output, as an inspection result, the difference between the external shape of the windings in the 3D shape data and the reference data.2.The motor inspection device as defined in Claim 1, where the reference data is CAD data that defines the 3D shape of a typical motor, the 3D data generation section (i) obtains point data generated by 3D coordinates, using the obtained pattern image, and (ii) obtains 3D shape data by creating a 3D model of the obtained point data, and the inspection section (i) compares the obtained 3D shape data with the CAD data, and (ii) outputs external shape abnormalities of the winding section as an inspection result, when the external shape of the motor winding section defined by the 3D shape data is larger than the external shape of the typical motor winding section defined by the CAD data.

3. The motor inspection device as defined in Claim 2, also includes: an output section capable of displaying the inspection results, where the inspection section (i) generates a color map of the motor winding section defined by the obtained 3D shape data, the location of abnormalities in the external shape of the winding section is indicated by the first color, and (ii) outputs the generated color map as an inspection result, and the output section displays the color map.4.The motor inspection device as defined in claim 3, whereby the inspection section (i) draws, from the obtained 3D shape data, the conductive range corresponding to the conductive parts, and the insulation range corresponding to the insulating parts, and (ii) generates a color map in which the location of the abnormality in the external shape of the winding section is indicated by the first color when the location of the abnormality in the external shape of the winding section is included in the conductive range, and the location of the abnormality in the external shape of the winding section is indicated by the second color when the location of the abnormality in the external shape of the winding section is included in the insulation range, where the second color differs from the first color.

5. The motor inspection device as defined in claim 4, whereby the winding section includes (i) the conductive lead wire and that is wound around the core, and (ii) the insulating part and that is insulating and that is attached to the lead wire, and when the location of the abnormality is in the insulating part, the inspection section generates a color map using the second color for the insulating part that is abnormal.6.Motor inspection equipment as defined in any of Reputations 1 to 5, where the projection part is a projector, and the image acquisition part is a stereo camera including two cameras.

7. Motor inspection equipment as defined in any of Reputations 1 to 6, where the inspection part also obtains winding section dimensions information, using the obtained 3D shape information.

8. Motor inspection equipment as defined in any of Reputations 1 to 7, where the motor is a motor used in a compressor installed in a vehicle, or a motor used in a compressor installed in an air conditioning system including household and industrial air conditioning systems.9.The method for inspecting an assembled motor involves: obtaining a patterned light projection onto the motor, including the winding section; capturing the projected pattern light onto the winding section; and acquiring the pattern image. This is followed by the creation of a 3D shape data model of the winding section using the acquired pattern image. The inspection process then compares the created 3D shape data to a defined 3D reference shape of a typical motor winding section. The final result is an inspection comparison of the difference between the external shape of the winding section in the 3D shape data and the reference data.10The motor inspection method as defined in claim 9, where the reference data is CAD data that defines the 3D shape of a normal motor, the creation process includes (i) the process of obtaining point data generated by 3D coordinates, using the obtained pattern image, and (ii) the process of obtaining 3D shape data by creating a 3D model of the obtained point data, and the inspection process includes (i) the process of comparing the obtained 3D shape data with the CAD data, and (ii) the process of identifying abnormalities in the external shape of the winding section when the external shape of the motor winding section defined by the 3D shape data is larger than the external shape of the normal motor winding section defined by the CAD data.

11. The motor inspection method as defined in claim 10, where the inspection process includes the process of creating and displaying a color map of the motor winding section defined by the obtained 3D shape data, the location of abnormalities in the external shape of the winding section is indicated by the first color.12.The methods for inspecting the motor as defined in claim 11, which include: the inspection process (i) the drawing process, from which 3D shape data is obtained, the conductive range corresponding to the conductive parts, and the insulation range corresponding to the insulating parts, and (ii) the color mapping process in which the location of abnormalities in the external shape of the winding section is indicated by the first color when the location of the abnormality in the external shape of the winding section is included in the conductive range, and the location of the abnormality in the external shape of the winding section is indicated by the second color when the location of the abnormality in the external shape of the winding section is included in the insulation range, where the second color differs from the first color.

13. The methods for inspecting the motor as defined in any one of claims 9 through 12, which also include: the surface treatment process of the motor surface treatment to suppress light reflection, in which the process includes the process of obtaining the pattern image projected onto the motor on which the surface treatment is performed;

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