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1. 发明专利

JP4196804B2 Inverter air conditioner 有权
公开(公告)号：JP4196804B2
公开(公告)日：2008-12-17
申请号：JP2003357165
申请日：2003-10-17
申请人：日立アプライアンス株式会社
发明人：孝大石 , 達夫安藤 , 憲昭山田 , 佳明栗田
IPC分类号： F24F11/02 , F25B49/02
摘要： PROBLEM TO BE SOLVED: To improve service property by facilitating the analysis for failure or breakage cause of an air conditioner. SOLUTION: The air conditioner comprises an outdoor unit 15 having an inverter system 17 for inverter-controlling a compressor 6 and a drive motor, an indoor unit 14 connected to the outdoor unit, a signal line and a pipe, and a remote control 13 for communicating with the indoor unit to perform setting of room temperature. The inverter system 17 includes a fin temperature detection means 1 for detecting the temperature of a radiation fin for performing the heat radiation of the inverter system 17, a DC voltage detection means 2 for detecting the DC voltage supplied for the inverter control, a motor current detection means 3 for detecting the operating current of the compressor, and an abnormality detection means 5 for detecting abnormality based on the value of at least any one of the temperature of the radiation fin, the DC voltage and the operating current. In this air conditioner, the temperature of the radiation fin, the DC voltage and the operation current are stored. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP4265558B2 Refrigeration equipment and the inverter device to be used in it 有权
公开(公告)号：JP4265558B2
公开(公告)日：2009-05-20
申请号：JP2005096670
申请日：2005-03-30
申请人：日立アプライアンス株式会社
发明人：智古澤 , 達夫安藤 , 憲昭山田 , 佳明栗田 , 邦明高塚
IPC分类号： F25B1/00 , H02M7/48
CPC分类号： Y02B70/126

3. 发明专利

JP4005510B2 The drive system of the synchronous motor 有权
公开(公告)号：JP4005510B2
公开(公告)日：2007-11-07
申请号：JP2002587910
申请日：2002-05-08
申请人：日立アプライアンス株式会社
发明人：坂本　　潔 , 憲昭山田 , 善尚岩路 , 洋藤井 , 常博遠藤
IPC分类号： H02P6/18 , H02P21/00 , H02P27/04
CPC分类号： H02P6/182
摘要： A control device for a synchronous motor is provided with a voltage instruction operator for operating voltage instructions Vdc*, Vqc* to the motor on coordinate axes dc-qc based on an estimation magnetic pole axis. The voltage instruction is operated by using a q-axis current instruction prepared based on a motor constant parameter, a revolution speed instruction, a d-axis current instruction and a current detection value. An induction voltage constant compensator is also provided that regulates the internal parameter of the motor's induction voltage constant so as to allow a d-axis current detection value to agree with a d-axis current instruction.

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