Engine driven heat pump
First Claim
1. An engine driven heat pump, comprising:
- an engine;
a compressor configured to be driven by the engine;
a refrigerant circuit configured to flow a refrigerant sucked and discharged by the compressor;
a generator configured to be driven by the engine;
an engine actuation battery configured to actuate the engine;
a battery charging circuit configured to charge the engine actuation battery;
an inverter configured to convert output power from the generator into a predetermined voltage and a predetermined frequency;
a temperature switch configured to open and close in accordance with a peripheral temperature of the inverter; and
a control device configured to include a signal reception unit,wherein a temperature open contact point configured to be opened at a predetermined temperature or higher is provided in the temperature switch, andwherein an abnormal-time open contact point configured to be opened when abnormality occurs in the battery charging circuit is provided in the battery charging circuit, andwherein a signal generation contact point configured to generate a state signal indicating a state of the inverter is provided in the inverter, andwherein the temperature open contact point of the temperature switch, the abnormal-time open contact point of the battery charging circuit, and the signal generation contact point of the inverter are connected in series with respect to the signal reception unit of the control device.
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Accused Products
Abstract
An engine driven heat pump includes a temperature switch that opens and closes in accordance with the peripheral temperature of an inverter and a control device that includes a signal reception unit, and a temperature open contact point that opens at a predetermined temperature or higher is provided in the temperature switch, and an abnormal-time open contact point that opens when abnormality occurs in a battery charging circuit is provided in the battery charging circuit, and a signal generation contact point that generates a state signal indicating a state of the inverter is provided in the inverter, and the temperature open contact of point the temperature switch, the abnormal-time open contact point of the battery charging circuit, and the signal generation contact point of the inverter are connected in series with respect to the signal reception unit of the control device.
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Citations
2 Claims
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1. An engine driven heat pump, comprising:
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an engine; a compressor configured to be driven by the engine; a refrigerant circuit configured to flow a refrigerant sucked and discharged by the compressor; a generator configured to be driven by the engine; an engine actuation battery configured to actuate the engine; a battery charging circuit configured to charge the engine actuation battery; an inverter configured to convert output power from the generator into a predetermined voltage and a predetermined frequency; a temperature switch configured to open and close in accordance with a peripheral temperature of the inverter; and a control device configured to include a signal reception unit, wherein a temperature open contact point configured to be opened at a predetermined temperature or higher is provided in the temperature switch, and wherein an abnormal-time open contact point configured to be opened when abnormality occurs in the battery charging circuit is provided in the battery charging circuit, and wherein a signal generation contact point configured to generate a state signal indicating a state of the inverter is provided in the inverter, and wherein the temperature open contact point of the temperature switch, the abnormal-time open contact point of the battery charging circuit, and the signal generation contact point of the inverter are connected in series with respect to the signal reception unit of the control device. - View Dependent Claims (2)
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Specification