Home appliance having built-in power meter
First Claim
Patent Images
1. An appliance comprising:
- an operation unit that is located in a case of the appliance, that receives alternating current power from an external power supply, and that includes at least one of a motor or a heating member;
a control circuit that is located in the case, that is configured to control the operation unit, that is configured to perform functions other than measuring power, and that comprises;
a microcomputer that is configured to control the appliance;
a rectifier that is configured to rectify alternating current power received from the external power supply;
a transformer that is configured to lower voltage of rectified alternating current power that is be provided to the microcomputer; and
a rectifier circuit that is connected to the transformer and that is configured to rectify power outputted by the transformer; and
a power meter that is connected to the control circuit, that is located in the case, that is configured to measure power consumed by the appliance, and that comprises;
an electric power calculation circuit that is configured to calculate an amount of power provided by the external power supply, that is configured to provide the calculated amount of power to the control circuit, that is connected to the rectified circuit, and that receives the rectified power from the rectified circuit.
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Abstract
An appliance includes an operation unit that is mounted in a case of the appliance that is supplied power by an external power supply and that includes at least one of a motor and a heating member. The appliance further includes a control circuit mounted in the case of the appliance and configured to control the operation unit to perform appliance functionality that is different than measuring power. The appliance further includes a power meter coupled to the control circuit, built into the case, and configured to measure power consumed by the appliance in performing the appliance functionality.
13 Citations
20 Claims
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1. An appliance comprising:
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an operation unit that is located in a case of the appliance, that receives alternating current power from an external power supply, and that includes at least one of a motor or a heating member; a control circuit that is located in the case, that is configured to control the operation unit, that is configured to perform functions other than measuring power, and that comprises; a microcomputer that is configured to control the appliance; a rectifier that is configured to rectify alternating current power received from the external power supply; a transformer that is configured to lower voltage of rectified alternating current power that is be provided to the microcomputer; and a rectifier circuit that is connected to the transformer and that is configured to rectify power outputted by the transformer; and a power meter that is connected to the control circuit, that is located in the case, that is configured to measure power consumed by the appliance, and that comprises; an electric power calculation circuit that is configured to calculate an amount of power provided by the external power supply, that is configured to provide the calculated amount of power to the control circuit, that is connected to the rectified circuit, and that receives the rectified power from the rectified circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An appliance comprising:
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an operation unit that is located in a case of the appliance, that receives alternating current power from an external power supply, and that includes at least one of a motor or a heating member; a control circuit that is located in the case, that is configured to control the operation unit, that is configured to perform functions other than measuring power, and that comprises; a microcomputer that is configured to control the appliance; a rectifier that is configured to rectify alternating current power received from the external power supply; and a transformer that is configured to lower voltage of rectified alternating current power that is provided to the microcomputer; and a power meter that is connected to the control circuit, that is located in the case, and that is configured to measure power consumed by the appliance, and that comprises; an electric power calculation circuit that is configured to calculate an amount of power provided by the external power supply and that is configured to provide the calculated amount of power to the control circuit; and a power supply circuit that is connected to the external power supply and that is configured to rectify the external power, lower voltage of the rectified power, and provide the lowered voltage to the electric power calculation circuit. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification