{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9739515","patent":{"patent_number":"US-9739515","title":"Heat pump device, air conditioner, and freezer that efficiently heats refrigerant on standby","assignee":null,"inventors":[],"filing_date":"2012-04-16T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":11,"abstract":"A heat pump device includes a compressor including a compression mechanism that compresses a refrigerant and a motor that drives the compression mechanism, an inverter that applies a voltage for driving the motor, a converter that applies a voltage to the inverter, an inverter control unit that generates a driving signal for driving the inverter, and a converter control unit that generates a driving signal for driving the converter. The inverter control unit includes a heating-operation-mode control unit that controls a driving-signal generating unit such that the driving-signal generating unit outputs, as inverter driving signals, PWM signals for heating the compressor without rotationally driving the motor by feeding a high-frequency current that the motor cannot follow in a heating operation mode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Heat pump device, air conditioner, and freezer that efficiently heats refrigerant on standby","description":"A heat pump device includes a compressor including a compression mechanism that compresses a refrigerant and a motor that drives the compression mechanism, an inverter that applies a voltage for drivi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9739515","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9739515","citation_suggestion":"Patentable. \"Heat pump device, air conditioner, and freezer that efficiently heats refrigerant on standby\" (US-9739515). https://patentable.app/patents/US-9739515","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9739515","json":"https://patentable.app/api/llm-context/US-9739515","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:50:17.630Z"}