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1. 发明专利

AU2014240321B2 Air conditioner 未知
公开(公告)号：AU2014240321B2
公开(公告)日：2016-05-05
申请号：AU2014240321
申请日：2014-10-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： SUGISAKI NORIHIKO , ITO NORIKAZU
IPC分类号： F24F11/02
摘要： An air conditioner includes an inverter circuit, a control unit that controls the inverter circuit, a compressor having a protection device (a pressure switch), and a phase-voltage detection circuit (a U-phase voltage detection circuit) that detects a voltage at any of three phase windings (compressor windings) of the compressor. The control unit includes a shutdown-cause specifying unit that determines presence or absence of an operation of the protection device based on a phase voltage value detected by the phase-voltage detection circuit, by turning on any of a plurality of switching elements constituting the inverter circuit, after the compressor has been shut down, and specifies a cause of the shutdown of the compressor.

2. 发明公开

EP3264588A4 MOTOR DRIVE DEVICE, REFRIGERATION CYCLE DEVICE, AND AIR CONDITIONER 审中-公开
公开(公告)号：EP3264588A4
公开(公告)日：2018-05-09
申请号：EP16854604
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , UMEHARA SHIGEO , SAITO KATSUHIKO , AMANO KATSUYUKI , FUKUDA MASAHIRO
IPC分类号： H02P25/16 , F25B1/00 , H02M1/00 , H02M1/32 , H02M1/44 , H02M7/00 , H02M7/5387 , H02P27/08
CPC分类号： F25B1/00 , H02M1/32 , H02M1/44 , H02M7/003 , H02M7/48 , H02M7/5387 , H02M2001/0009 , H02P25/16 , H02P27/08
摘要： A motor drive apparatus includes: inverter modules equivalent in number to phases of a motor 15; and a control unit 5 that generates a PWM signal for driving the inverter modules 2, 3, and 4 by using PWM. Each of the inverter modules 2, 3, and 4 includes: a plurality of pairs of switching elements, each pair of switching elements including two switching elements connected in series; a drive circuit 7 that drives the plurality of pairs of switching elements in accordance with an input signal of the control unit; and a protection circuit 8 that stops the drive circuit 7 when a first threshold voltage value is exceeded regardless of the input signal from the control unit 5. The plurality of pairs of switching elements is connected in parallel, and power GNDs 28 that are reference terminals of the plurality of pairs of switching elements, a control GND 30 that is a reference terminal of the drive circuit 7, and a terminal 26 for overcurrent fault input in the protection circuit 8 are independently exposed to the outside. The power GNDs 28 and the control GND 30 are connected to a single point on a printed circuit board by a wiring pattern.

3. 发明公开

EP2624424A4 POWER CONVERSION DEVICE AND REFRIGERATION AIR-CONDITIONING DEVICE 有权
标题翻译：黎巴嫩南部的LEISTUNGSUMWANDLUNGSVORRICHTUNG
公开(公告)号：EP2624424A4
公开(公告)日：2017-01-11
申请号：EP10857796
申请日：2010-11-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： ARISAWA KOICHI , SHIMOMUGI TAKUYA , SHINOMOTO YOSUKE , HANDA MASATO , KASHIMA MITSUO , UMEHARA SHIGEO , SAITO KATSUHIKO , ITO NORIKAZU , TANIFUJI HITOSHI , TANIKAWA MAKOTO , HIGASHIKAWA TOMOMI
IPC分类号： H02M3/155 , H02M1/34 , H02M1/42 , H02M1/44 , H02M3/158
CPC分类号： H02M3/155 , H02M1/4225 , H02M1/44 , H02M3/158 , H02M2001/342 , Y02B70/126 , Y02B70/1491
摘要： To provide a power converter and the like capable of achieving high efficiency and high reliability. The power converter includes step-up means 2 for varying a voltage applied by a power supply 1 to a predetermined voltage, commutating means 4 for performing a commutation operation for allowing a current flowing through the step-up means 2 to flow through a second path, smoothing means 3 for smoothing a voltage related to outputs of the step-up means 2 and the commutating means 4 to produce power and supplying the power to a load 9 side, and control means 6 for performing control related to voltage varying, such as stepping up, by the step-up means 2 and controlling the commutation operation of the commutating means 4 on the basis of at least one of a voltage and a current related to the step-up means 2.
摘要翻译：提供能够实现高效率和高可靠性的功率转换器等。功率转换器包括用于将由电源1施加的电压改变为预定电压的升压装置2，用于执行换流操作以使流过升压装置2的电流流过第二路径的换向操作的换向装置4 ，平滑装置3，用于平滑与升压装置2和整流装置4的输出相关的电压，以产生电力并向负载9侧供电;以及控制装置6，用于执行与电压变化有关的控制，例如通过升压装置2升压，并且基于与升压装置2相关的电压和电流中的至少一个来控制换向装置4的换向操作。

4. 发明公开

EP3255785A4 ELECTRIC MOTOR DRIVE DEVICE AND AIR CONDITIONER 审中-公开
公开(公告)号：EP3255785A4
公开(公告)日：2017-12-20
申请号：EP16863193
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , SAITO KATSUHIKO , UMEHARA SHIGEO , AMANO KATSUYUKI , FUKUDA MASAHIRO
IPC分类号： H02P29/024 , F25B1/00 , H02M1/08 , H02M7/5387 , H02P27/08
CPC分类号： H02P29/0241 , F25B1/00 , H02M1/08 , H02M1/32 , H02M7/5387 , H02P27/08
摘要： There are provided the same number of inverter modules 6 to 8 as the number of phases of a motor, and an inverter control unit 4 that generates PWM signals used to drive the inverter modules in PWM. Three phase outputs from each of the inverter modules are coupled to form a phase output signal for one phase of the motor while capacitors 22, 32, and 42 are mounted between control GNDs of the inverter modules 6 to 8 and power GNDs of the inverter modules. Consequently, even if a surge voltage is generated in a GND wiring at the time of a switching operation of switching elements 9a to 9f in the inverter modules, the application of the surge voltage to the switching elements 9e to 9f can be suppressed.

5. 发明专利

DE112017001145T5 AUFZUGS-BREMSVORRICHTUNG 未知
公开(公告)号：DE112017001145T5
公开(公告)日：2018-11-22
申请号：DE112017001145
申请日：2017-01-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , MIYAKAWA KEN , UTSUNOMIYA KENJI
IPC分类号： B66B5/20
摘要： Aufzugs-Bremsvorrichtung, die Folgendes aufweist: einen bewegbaren Bereich (14), der in einer senkrecht zu einer Führungsschiene (5) verlaufenden Richtung verlagerbar ist, die als Bremsfläche dient; einen schwenkbaren Gleitbereich (16), der relativ zu dem bewegbaren Bereich (14) verschwenkbar angeordnet ist, und der beim Verschwenken mit der Bremsfläche in Kontakt gebracht wird; einen Motor (20), der dazu ausgebildet ist, einen schwenkbaren Gleitbereich (16) zu verschwenken; und einen Elektromagneten (21) sowie eine Druckfeder (22), die dazu ausgebildet sind, den schwenkbaren Gleitbereich (16) in einer Richtung zu verlagern, in der der schwenkbare Gleitbereich (16) mit der Bremsfläche in Kontakt gebracht wird, wenn der Strom ausgeschaltet wird. Während eines normalen Betriebs wird der schwenkbare Gleitbereich (16) von dem Motor (20) verschwenkt, um den schwenkbaren Gleitbereich (16) und die Bremsfläche in Kontakt miteinander zu bringen, so dass die Bremsfläche gehalten wird. Im Notfall wird der Strom für den Elektromagneten (21) ausgeschaltet, um den schwenkbaren Gleitbereich (16) so mit der Bremsfläche in Kontakt zu bringen, dass an der Bremsfläche eine Bremswirkung erzeugt wird.

6. 发明专利

AU2016405035A1 Motor drive device and air conditioner 未知
公开(公告)号：AU2016405035A1
公开(公告)日：2018-08-16
申请号：AU2016405035
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , SHIMOMUGI TAKUYA , FUKUDA MASAHIRO
IPC分类号： H02P25/16
摘要： This motor drive device, which converts AC power into DC power and drives a motor, is provided with a printed circuit board 52 provided with: a first board surface 52a and a second board surface 52b; inverter modules 5, 6 which are provided to the first board surface 52a; a first power pattern 31a which is provided to the second board surface 52a, and which is connected to inverter module 5; a second power pattern 31b which is provided to the second board surface 52a, and which is connected to inverter module 6; and a jumper part 20 which connects the first power pattern 31a and the second power pattern 31b. The cross-sectional area of the jumper part 20 is larger than the cross-sectional area of the first power pattern 31a and the cross-sectional area of the second power pattern 31b.

7. 发明专利

AU2012254876B2 Inverter device and air conditioner including the same 未知
公开(公告)号：AU2012254876B2
公开(公告)日：2014-03-20
申请号：AU2012254876
申请日：2012-11-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU
IPC分类号： H02M7/12 , F24F1/00 , F24F11/46 , F24F11/62 , F24F11/72 , F24F11/85 , F24F11/86 , F24F11/88 , H02M7/48
摘要： An inverter device includes a plurality of switching circuits (5) in which first switching elements (8) including Si semiconductors and second switching element (9) including WBG semiconductors having ON resistance smaller than that of the first switching elements (8) and having switching speed higher than that of the first switching elements (8) are connected in parallel. The inverter device includes a converting circuit (4) that converts a direct-current voltage into a desired alternating-current voltage and a driving unit (16) that generates a plurality of driving signals for respectively turning on and off the switching circuits (5). The inverter device includes, for each of the switching circuits (5), a gate circuit (17) that, based on the driving signals, turns on the second switching element (9) later than the first switching element (8) and turns off the first switching element (8) later than the second switching element (9). PMDA-12119-AU C%4 r ---------------- --------------------------------------- co U,): --- -- CO r Go: z C) ---------- D z U.) I I T - : , I z z w 0) w W ID co ------- ---------------- CV)) CV)) ---- ----------- [ ---------- -----1 C?. -- -------------- --- ----411 CV) L04 m ---------------------------------------

8. 发明专利

AU2016404961B2 Motor drive apparatus and air conditioner 未知
公开(公告)号：AU2016404961B2
公开(公告)日：2019-08-08
申请号：AU2016404961
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , SAITO KATSUHIKO , UMEHARA SHIGEO , AMANO KATSUYUKI , FUKUDA MASAHIRO
IPC分类号： H02P27/06 , F25B1/00 , H02M7/48 , H02M7/5387 , H02P25/16
摘要： The present invention is provided with: the same number of inverter modules 6-8 as the number of phases of an electric motor; and an inverter control unit 4 which generates pulse width modulation (PWM) signals for driving the inverter modules by way of PWM. Three phase outputs of each of the inverter modules are combined to obtain a phase output signal for one phase of the electric motor. Furthermore, capacitors 22, 32, 42 are mounted between control GNDs of the inverter modules 6-8 and power GNDs of the inverter modules. Accordingly, the application of surge voltage to switching elements 9e-9f can be inhibited, even if surge voltage is generated in GND wiring during switching operations of switching elements 9a-9f of the inverter modules.

9. 发明专利

AU2016405033B2 Motor drive apparatus, refrigeration cycle apparatus and air conditioner 未知
公开(公告)号：AU2016405033B2
公开(公告)日：2019-07-25
申请号：AU2016405033
申请日：2016-04-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： ITO NORIKAZU , UMEHARA SHIGEO , SAITO KATSUHIKO , AMANO KATSUYUKI , FUKUDA MASAHIRO
IPC分类号： H02P25/16 , F25B1/00 , H02M7/48 , H02M7/5387 , H02P27/08
摘要： This motor drive device is provided with: the same number of inverter modules as the number of phases of a motor 15; and a control unit 5 which generates pulse width modulation (PWM) signals for driving the inverter modules 2, 3, 4 by way of PWM. The inverter modules 2, 3, 4 each have, provided therein: a plurality of switching element pairs in each of which two switching elements are connected in series; a drive circuit 7 for driving the plurality of switching element pairs on the basis of input signals from the control unit; and a protection circuit 8 which stops the drive circuit 7 if a first threshold voltage value is exceeded, regardless of the input signals from the control unit 5. The plurality of switching element pairs are connected in parallel. Power GNDs 28, which are reference terminals of the plurality of switching element pairs, control GNDs 30, which are reference terminals of the drive circuits 7, and overcurrent abnormality input terminals 26 of the protection circuits 8 are respectively independently provided to the exterior. The power GNDs 28 and the control GNDs 30 are each connected at one point on a printed circuit board by a wiring pattern.

10. 发明专利

DE112012006959T5 Wärmepumpenvorrichtung, Klimaanlage und Gefriermaschine 未知
公开(公告)号：DE112012006959T5
公开(公告)日：2015-06-18
申请号：DE112012006959
申请日：2012-09-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAMIYA SHOTA , HATAKEYAMA KAZUNORI , ITO NORIKAZU , TOMITA MASAFUMI , AMANO KATSUYUKI
IPC分类号： H02P27/02 , F24F11/02 , H02P21/00 , H02P23/00 , H02P27/04
摘要： Es wird eine Wärmepumpenvorrichtung erzielt, die einen Kompressor einschließt, der einen Motor einschließt, der in der Lage ist, eine sensorlose Vektorkontrolle durchzuführen, selbst bei niedriger Rotationsgeschwindigkeit oder unter einer niedrigen Last, bei Unterdrücken eines Kostenanstiegs. Die Wärmepumpenvorrichtung der vorliegenden Erfindung schließt einen Kältemittelkompressor 14 ein, der von einem Motor 21 angetrieben wird; eine Invertereinheit 12, die Spannung an den Motor 21 anlegt; Stromsensoren 26a und 26b für einen Motorenstrom; und eine Invertersteuereinheit 13, die ein Antriebssignal an die Invertereinheit 12 ausgibt, wobei die Invertersteuereinheit 13 eine Spannungsbefehlberechnungseinheit 25 und eine Antriebssignalgenerierungseinheit 23 einschließt, die Antriebssignalgenerierungseinheit 23 eine Amplitudenund Phasenbestimmungseinheit 33 einschließt, die eine erforderliche Höhe einer Kältemittelkompression des Kompressors 14 auf einer Basis eines Signals von dem Stromsensoren 26a und 26b bestimmt, eine Amplitude und eine Phase bestimmt, und die Antriebssignalgenerierungseinheit 23 veranlasst, das Antriebssignal zu generieren, und wenn der Motor 21 bei niedriger Rotationsgeschwindigkeit oder unter einer niedrigen Last arbeitet, korrigiert die Spannungsbefehlberechnungseinheit 25 ein Signal von den Stromsensoren 26a und 26b gemäß der Rotationsgeschwindigkeit oder der Lasten.

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