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公开(公告)号：US20160330876A1
公开(公告)日：2016-11-10
申请号：US15105446
申请日：2014-12-16
CPC分类号： H05K7/20936 , F24F1/24 , F25B13/00 , F25B31/006 , F25B2313/0254 , F25B2400/077 , H02M1/42 , H02P27/06
摘要： A refrigeration device includes a high-voltage electrical parts group having reactors and cooled elements, a low-voltage electrical parts group, a printed wiring board with the electrical parts groups mounted, and a refrigerant jacket that uses refrigerant flowing through the refrigerant circuit to cool the cooled elements. The high-voltage electrical parts group form an interleaved power supply circuit. The cooled elements are placed in an order conforming to a power supply path of the power supply circuit. The power supply circuit has a rectifier circuit, a power factor improvement circuit, smoothing capacitors, and an inverter circuit. The power factor improvement circuit has the reactors connected to each other in parallel and diodes and switching elements serving as the cooled elements connected to each of the reactors. The reactors are placed on an opposite side of the smoothing capacitors, with the diodes and the switching elements sandwiched in between.
摘要翻译： 制冷装置包括具有反应器和冷却元件的高压电气部件组，低压电气部件组，安装有电气部件组的印刷电路板，以及使用流过制冷剂回路的制冷剂冷却的制冷剂套 冷却元件。 高压电气部件组形成交错电源电路。 冷却的元件以符合电源电路的电源路径的顺序放置。 电源电路具有整流电路，功率因数改善电路，平滑电容器和逆变器电路。 功率因数改善电路具有并联的电抗器，并且连接到每个反应器的用作冷却元件的二极管和开关元件。 电抗器放置在平滑电容器的相反侧，二极管和开关元件夹在其间。
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公开(公告)号：US20170314815A1
公开(公告)日：2017-11-02
申请号：US15520232
申请日：2015-12-04
摘要： A preheater for a compressor that is capable of heating a lubricant oil efficiently with smaller power is provided. A preheater for a compressor includes: a capacitive oil surface sensor that is provided at a compressor used in a refrigerating cycle, and detects an oil surface of a lubricant oil A in the compressor; and a power supply unit that applies high-frequency voltage to the oil surface sensor.
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公开(公告)号：US20160359438A1
公开(公告)日：2016-12-08
申请号：US15117834
申请日：2015-02-17
CPC分类号： H02P6/20 , H02M7/46 , H02M7/537 , H02P1/029 , H02P6/14 , H02P6/182 , H02P6/22 , H02P27/06 , H02P2203/03
摘要： A failure in the activation, of a motor, caused by external noise superimposed on an induced voltage is reduced. A detection circuit is connected to a connection node provided between an upper-arm switching element and a lower-arm switching element, and detects the induced voltage of a fan motor before activation. The switching controller activates the fan motor in accordance with a result of detection by the detection circuit. While the detection circuit detects the induced voltage, the switching controller performs switching control which involves alternately turning ON and OFF of the lower-arm switching element.
摘要翻译： 降低了由外部噪声叠加在感应电压上引起的电动机的激活失败。 检测电路连接到设置在上臂开关元件和下臂开关元件之间的连接节点，并且在激活之前检测风扇电动机的感应电压。 开关控制器根据检测电路的检测结果启动风扇电机。 当检测电路检测到感应电压时，开关控制器执行切换控制，该切换控制涉及下臂开关元件的交替接通和断开。
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公开(公告)号：US20240102688A1
公开(公告)日：2024-03-28
申请号：US18524976
申请日：2023-11-30
发明人： Ryosuke YAMAMOTO , Yohei KOYAMA , Youta KATOU , Kazuaki ANDO , Taiki KOGAWA , Shin HIGASHIYAMA , Kosuke HOTTA , Shinichi ISHIZEKI , Toshiaki KUMATA
IPC分类号： F24F11/88
CPC分类号： F24F11/88
摘要： An indoor unit included in an air conditioner that includes an outdoor unit includes a power receiving circuit (PR2), a low-frequency transmission and reception circuit as a first reception circuit, a high-frequency transmission and reception circuit as a transmission and reception circuit, and an inner-controller. The low-frequency transmission and reception circuit receives a current signal transmitted from an outdoor unit by using a current loop formed by a power line included in power supply wiring. For a first communication state in which physical connection between with the outdoor unit is recognized and a second communication state in which communication for operation of the air conditioner is performed between with the outdoor unit, the inner-controller selects use of the low-frequency transmission and reception circuit and the high-frequency transmission and reception circuit in the first communication state and the second communication state.
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公开(公告)号：US20200112248A1
公开(公告)日：2020-04-09
申请号：US16617700
申请日：2018-05-25
摘要： A converter, a first switch, a second switch, and an inverter are disposed in that order along a second direction, at a first position in a first direction. A reactor and a capacitor are disposed in that order along the second direction, at a second position in the first direction. Energy is stored in the reactor via the first switch. The capacitor is discharged via the second switch. At least one of a set of the reactor and the converter and a set of the capacitor and the inverter is disposed side by side along the first direction.
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公开(公告)号：US20160248365A1
公开(公告)日：2016-08-25
申请号：US15023924
申请日：2014-08-27
CPC分类号： H02P27/06 , F24F11/85 , H02M1/36 , H02M1/4225 , H02M3/157 , H02M5/44 , H02M7/06 , H02M2003/1586 , Y02B70/126
摘要： Reduced is occurrence of hunting in which a power factor corrector continuously turns on and off alternately for a short period of time. A power factor correction controller turns on a power factor corrector if a parameter value for an input current into the power factor corrector is greater than or equal to a first threshold, and turns off the power factor corrector if the parameter value is smaller than or equal to a second threshold below the first threshold. Through a predetermined time period from a moment when the power factor corrector is switched either from on to off or from off to on, the power factor correction controller maintains a state of the switched power factor corrector, regardless of the parameter value.
摘要翻译： 减少了功率因数校正器在短时间段内交替连续地导通和关断的捕获的发生。 如果功率因数校正器的输入电流的参数值大于或等于第一阈值，则功率因数校正控制器接通功率因数校正器，并且如果参数值小于或等于则关闭功率因数校正器 到低于第一阈值的第二阈值。 功率因数校正控制器从功率因数校正器从接通切换到断开或从关断切换到时刻的预定时间段，不管参数值如何，功率因数校正控制器保持开关功率因数校正器的状态。
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公开(公告)号：US20210092189A1
公开(公告)日：2021-03-25
申请号：US17051050
申请日：2019-05-15
发明人： Yoshimasa NAKAYAMA , Ryousuke YAMAMOTO , Shinichi ISHIZEKI , Kunitaka MORIMOTO , Munehiko FUJIMOTO , Yuuki OGISO , Atsushi TOKUNAGA
摘要： Provided is a communication system for an air conditioner including a housing and a control board accommodated in the housing. The communication system includes: a communication conversion unit accommodated in the housing and configured to acquire a required electric signal from the control board and to convert the electric signal into a digital signal for wire transmission; a cable having a first end connected to the communication conversion unit, the cable being drawn out of the housing to outside; and an antenna unit connected to a second end of the cable located outside the housing, the antenna unit being configured to establish wireless communication with a base station.
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公开(公告)号：US20180375455A1
公开(公告)日：2018-12-27
申请号：US15776518
申请日：2016-11-10
发明人： Shinichi ISHIZEKI
IPC分类号： H02P23/04 , H02P27/06 , H02M5/458 , H02M7/5387
摘要： Ripple power having a first variation range is input into a DC link (DC power supply lines). Buffer power is provided and received between the DC link and a power buffer circuit, so that the DC link outputs DC power having a second variation range smaller than the first variation range. An inverter receives the DC power as an input, and outputs AC power to a motor. A power control unit controls the power buffer circuit and the inverter on the basis of a compensation rate that sets the second variation range. A compensation rate setting unit performs a setting in which the compensation rate when a rotational speed of the motor belongs to any of a plurality of first predetermined ranges is higher than the compensation rate when the rotational speed belongs to a second predetermined range other than the plurality of first predetermined ranges.
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公开(公告)号：US20160218624A1
公开(公告)日：2016-07-28
申请号：US15026285
申请日：2014-08-27
CPC分类号： H02M3/26 , F24F11/85 , H02M1/32 , H02M1/36 , H02M1/42 , H02M1/4225 , H02M3/157 , H02M2003/1586 , Y02B70/126
摘要： Malfunctions of a switching device included in a power factor corrector are reduced when an instantaneous voltage drop or an instantaneous power failure occurs. If the instantaneous voltage drop or the instantaneous power failure occurs in an AC power source while the power factor corrector is performing a power factor correction operation by boosting an input voltage, an instantaneous power failure controller turns off the switching device included in the power factor corrector so that the power factor correction operation stops. When the commercial power source recovers, too, the power factor corrector suspends the power factor correction operation.
摘要翻译： 包括在功率因数校正器中的开关器件的故障在发生瞬时电压降或瞬时停电故障时减小。 如果在功率因数校正器通过升压输入电压来进行功率因数校正操作时，在AC电源中发生瞬时电压下降或瞬时停电故障，则瞬时断电控制器关闭包括在功率因数校正器中的开关器件 使功率因数校正操作停止。 当商用电源恢复时，功率因数校正器暂停功率因数校正操作。
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公开(公告)号：US20150271953A1
公开(公告)日：2015-09-24
申请号：US14223521
申请日：2014-03-24
发明人： Masahide FUJIWARA , Shinichi ISHIZEKI , Kentaroh TAOKA , Shinichirou NOMURA , Motonobu IKEDA , Hiroshi DOHMAE
IPC分类号： H05K7/20
CPC分类号： H05K7/20254 , H01L23/40 , H01L23/473 , H01L31/052 , H01L33/648 , H01L2023/4087 , H01L2924/0002 , H05K7/20309 , H05K7/20409 , H05K7/20418 , H05K7/20445 , H01L2924/00
摘要： A refrigerant jacket includes a refrigerant cooling member, a cover member and a strength member. The cooling member is constructed of aluminum or aluminum alloy that thermally contacts a heat emitting electrical part, and has a groove portion. A refrigerant tube of a refrigerant circuit fits into the groove portion. The cover member covers the refrigerant cooling member in a state where the refrigerant tube has been fitted into the groove portion. The strength member is higher in strength than the cooling member, and is fixed to the cooling member. The cover member has a cover-side through hole opposing the strength member. The strength member has a cover member fixing screw hole opposing the cover-side through hole. The cover member is fixed to the strength member by a cover member fixing screw that passes through the cover-side through hole and screws into threads of the cover member fixing screw hole.
摘要翻译： 制冷剂套管包括制冷剂冷却构件，盖构件和强度构件。 冷却构件由铝或铝合金构成，其与热发射电气部件热接触，并且具有凹槽部分。 制冷剂回路的制冷剂管装入槽部。 在制冷剂管已嵌入槽部的状态下，盖部件覆盖制冷剂冷却部件。 强度构件的强度高于冷却构件，并且固定到冷却构件。 盖构件具有与加强构件相对的盖侧通孔。 强度构件具有与盖侧通孔相对的盖构件固定螺钉孔。 盖构件通过盖构件固定螺钉固定到加强构件，盖构件固定螺钉穿过盖侧通孔并且拧入盖构件固定螺钉孔的螺纹中。
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