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    • 1. 发明专利
    • Refrigerating device
    • 制冷装置
    • JP2008057829A
    • 2008-03-13
    • JP2006233674
    • 2006-08-30
    • Daikin Ind Ltdダイキン工業株式会社
    • ISHIKAWA SATOSHIMASUDA MASANORIHIGUCHI YORIHIDE
    • F25B41/00F01N13/02
    • F25B31/02F04B39/0061F25B9/008F25B13/00F25B2313/02741F25B2500/12
    • PROBLEM TO BE SOLVED: To sufficiently reduce pressure pulsation of a refrigerating device applying carbon dioxide and the like as a refrigerant. SOLUTION: This refrigerating device 1 comprises a first refrigerant passage 204, π type silencers 20, 20a, and a second refrigerant passage 205. The π type silencer has a first silencing space 201, a second silencing space 202 and communication passages 203, 203a. The first silencing space is communicated with the first refrigerant passage. The second silencing space is disposed at a lower part of the first silencing space. The communication passage is extended from a lower end of the first silencing space toward the external of the first silencing space, and communicated with the second silencing space. The second refrigerant passage is extended from a lower end of the second silencing space. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:充分降低作为制冷剂施加二氧化碳等的制冷装置的压力脉动。 解决方案:该制冷装置1包括第一制冷剂通道204,π型消声器20,20a和第二制冷剂通道205.π型消声器具有第一消音空间201,第二消音空间202和连通通道203 ,203a。 第一消音空间与第一制冷剂通道连通。 第二消音空间设置在第一消音空间的下部。 连通通道从第一消音空间的下端延伸到第一消音空间的外部,并与第二消音空间连通。 第二制冷剂通道从第二消音空间的下端延伸。 版权所有(C)2008,JPO&INPIT
    • 2. 发明专利
    • Refrigerating device
    • 制冷装置
    • JP2008032344A
    • 2008-02-14
    • JP2006208048
    • 2006-07-31
    • Daikin Ind Ltdダイキン工業株式会社
    • ISHIKAWA SATOSHI
    • F25B41/00F25B41/06F25B43/00
    • PROBLEM TO BE SOLVED: To provide a refrigerating device having simple construction for reducing the pressure pulsation of refrigerant on the inflow/outflow side of an expander.
      SOLUTION: In a refrigerant circuit 10, a hollow container 30 is provided on the outflow side of the expander 22. Extra refrigerant in the refrigerant circuit is stored in a capacity space 32 of the hollow container. In the capacity space of the hollow container, the pressure fluctuation of the refrigerant is absorbed by gas refrigerant stored in a gas phase portion 32a. Thus, the pressure pulsation of the refrigerant is absorbed.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 解决问题的方案:提供一种制冷装置结构简单的结构,用于减小膨胀机的流出侧的制冷剂的压力脉动。 解决方案:在制冷剂回路10中,中空容器30设置在膨胀机22的流出侧。制冷剂回路中的额外制冷剂储存在中空容器的容纳空间32中。 在中空容器的容积空间中,制冷剂的压力波动被储存在气相部分32a中的气体制冷剂吸收。 因此,制冷剂的压力脉动被吸收。 版权所有(C)2008,JPO&INPIT
    • 3. 发明专利
    • Refrigerating device
    • 制冷装置
    • JP2008032243A
    • 2008-02-14
    • JP2006202827
    • 2006-07-26
    • Daikin Ind Ltdダイキン工業株式会社
    • ISHIKAWA SATOSHIHORI KAZUKIKUMAKURA EIJIHOKOTANI KATSUMI
    • F25B41/00F25B1/00F25B11/02
    • F25B41/00F25B9/008F25B49/02F25B2309/061F25B2500/12F25B2500/13
    • PROBLEM TO BE SOLVED: To provide a refrigerating device for performing a refrigerating cycle with refrigerant being circulated therein, capable of greatly reducing the pressure pulsation of the refrigerant.
      SOLUTION: A pulsation absorbing device 30 is provided in a refrigerant circuit 10 of the refrigerating device 1. A pressure pulsating device 30 has a piston 32 stored in a cylinder member 31 and a cylinder chamber partitioned into a pressure damping chamber 33 and a back pressure chamber 34. The pressure damping chamber 33 is connected via a first connection pipe 35 to a second high pressure refrigerant pipe 12 on the inflow side of an expander 22. The back pressure chamber 34 is connected via a second connection pipe 36 and a capillary tube 37 to a first high pressure refrigerant pipe 11 on the discharge side of a compressor 20.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种能够大大降低制冷剂的压力脉动的制冷剂在其中循环的制冷循环的制冷装置。 解决方案:脉动吸收装置30设置在制冷装置1的制冷剂回路10中。压力脉动装置30具有存储在气缸构件31中的活塞32和分隔成减压室33的气缸室, 背压室34.压力阻尼室33通过第一连接管35连接到膨胀机22的流入侧的第二高压制冷剂管12.背压室34经由第二连接管36和 毛细管37连接到压缩机20的排出侧的第一高压制冷剂管道11.权利要求:(C)2008,JPO&INPIT
    • 6. 发明专利
    • Detection method for motor/cable resistance and device thereof
    • 用于电动机/电缆电阻的检测方法及其装置
    • JP2005130654A
    • 2005-05-19
    • JP2003365129
    • 2003-10-24
    • Daikin Ind Ltdダイキン工業株式会社
    • YANAGIDA YASUTOHIWADA TAKESHIISHIKAWA SATOSHINAKADA TETSUO
    • H02P6/18H02P21/00H02P27/04H02P27/06H02P7/63
    • PROBLEM TO BE SOLVED: To precisely detect resistances of a motor and a cable that connects the motor and an inverter. SOLUTION: In the detection method, positive and negative current commands are alternately outputted by a current command code setting part 2; a current control operation is performed by a difference calculation part 3 and a PI operation part 4; substantial currents Iα, Iβ on an α-axis and a β-axis are calculated by a motor current detection part 8 and a three-phase-to-two-phase converter 9; either of axis voltage command, Vα, Vβ is set as a subject voltage command in accordance with a rotor position angle θ by a voltage command setting part 10; the resistances RO of the motor and the cable that connects the motor and the inverter are calculated by performing a prescribed operation, using a preset voltage command value and a motor current by a motor/cable resistance calculation part 11; and the resistances RO are corrected by using a prescribed correction formula by a motor/cable resistor corrector 12. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:精确检测电机和连接电机和逆变器的电缆的电阻。 解决方案:在检测方法中,正,负电流指令由电流指令代码设定部分2交替输出; 由差计算部3和PI运算部4进行电流控制动作; 通过电动机电流检测部8和三相到二相变换器9计算α轴和β轴上的实质电流Iα,Iβ, 由电压指令设定部10根据转子位置角度θ将轴电压指令Vα,Vβ中的任一个设定为对象电压指令; 通过电机/电缆电阻计算部11使用预设电压指令值和电动机电流进行规定的动作来计算电动机和连接电动机和逆变器的电缆的电阻RO; 并且通过电机/电缆电阻校正器12使用规定的校正公式来校正电阻RO。版权所有:(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Refrigerator
    • 冰箱
    • JP2007239666A
    • 2007-09-20
    • JP2006064539
    • 2006-03-09
    • Daikin Ind Ltdダイキン工業株式会社
    • YAMAGUCHI TAKAHIROISHIKAWA SATOSHIYAMADA MASAHIROKOSHO KAZUHIRO
    • F04C23/02F25B1/04F25B1/10
    • F04C23/001F04C18/02F04C18/045F04C18/322F04C23/008F04C29/0035F04C2270/03F04C2270/12F25B1/04F25B2400/075F25B2400/13
    • PROBLEM TO BE SOLVED: To provide a refrigerator provided with a compressor having a plurality of compression chambers and capable of suppressing the fluctuation of the compression torque of a driving shaft at a cylinder halt operation time and a two-step compression operation time. SOLUTION: The compressor (20) is provided with compression mechanisms (61, 62) having four compression chambers (61, 62, 63 and 64). In the compressor (20), phases of fluctuation periods of volumes of the first compression chamber (61) and the second compression chamber (62) are deviated from each other at 180°, and phases of fluctuation periods of volumes of the third compression chamber (63) and the fourth compression chamber (64) are also deviated from each other at 180°. In cylinder halt operation, refrigerants are compressed at a single step in the first compression chamber (61) and the second compression chamber (62), respectively, and the compression operation of refrigerants in the third compression chamber (63) and the fourth compression chamber (64) is halted. In two-step compression operation, the refrigerants compressed at a single step in the first compression chamber 61 and the second compression chamber (62), respectively, are further compressed in the third compression chamber (63) and the fourth compression chamber (64). COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种具有压缩机的冰箱,该压缩机具有多个压缩室,能够抑制在停止运转时间和两步压缩运转时间的驱动轴的压缩扭矩的波动 。 解决方案:压缩机(20)设有具有四个压缩室(61,62,63和64)的压缩机构(61,62)。 在压缩机20中,第一压缩室61和第二压缩室62的体积的波动周期相位180度偏离,第三压缩室的体积的变动周期的相位 (63)和第四压缩室(64)也在180°处彼此偏离。 在气缸停止运转中,制冷剂分别在第一压缩室61和第二压缩室62中一步压缩,第三压缩室63和第四压缩室63内的制冷剂的压缩运转 (64)停止。 在两步压缩操作中,分别在第一压缩室61和第二压缩室62中一步压缩的制冷剂在第三压缩室63和第四压缩室64进一步压缩, 。 版权所有(C)2007,JPO&INPIT
    • 8. 发明专利
    • Compressor
    • 压缩机
    • JP2007023822A
    • 2007-02-01
    • JP2005204206
    • 2005-07-13
    • Daikin Ind Ltdダイキン工業株式会社
    • ISHIKAWA SATOSHI
    • F04B39/00
    • F04C29/068F01C21/10F04B39/0055F04C18/3564F04C23/008F04C29/0035F04C2240/30
    • PROBLEM TO BE SOLVED: To suppress vibration noise due to a standing wave generated from the pressure wave and reflected wave of a low frequency component included in delivery gas delivered from a compression mechanism (20), in a high pressure domelike compressor in which a space in a casing (10) is partitioned into a first space (S1) and a second space (S2) which are positioned across an electric motor (30) and the compression mechanism (20) is arranged in the first space (S1).
      SOLUTION: A partition board (50) with a noise reducing opening (51) formed is provided in the second space (S2) to which the pressure wave of the low frequency component included in delivery gas from the compression mechanism (20) is transmitted through the air gap and core cut of the electric motor (30), and acoustic impedance of two spaces (Sa, Sb) positioned on both sides across the partition board (50) is set to an equal value or approximately the equal value. Thereby, the reflection of the pressure wave of the low frequency component from the second space (S2) to the first space (S1) is reduced, the amplitude of the standing wave decreases, and vibration noise is reduced.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了抑制由压缩波产生的驻波和从压缩机构(20)输送的输送气体中包含的低频成分的反射波,在高压多立方压缩机中产生的振动噪声 其中壳体(10)中的空间被分隔成跨越电动机(30)定位的第一空间(S1)和第二空间(S2),并且压缩机构(20)布置在第一空间(S1 )。 解决方案:在来自压缩机构(20)的输送气体中包含的低频分量的压力波的第二空间(S2)中设置有形成有减噪开口(51)的分隔板(50) 通过电动机(30)的气隙和铁芯切断传递,并且位于分隔板(50)两侧的位于两侧的两个空间(Sa,Sb)的声阻抗被设定为等于或大致相等的值 。 因此,从第二空间(S2)到第一空间(S1)的低频分量的压力波的反射减小,驻波的振幅降低,振动噪声降低。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Hermetic compressor
    • HERMETIC压缩机
    • JP2008248889A
    • 2008-10-16
    • JP2008173783
    • 2008-07-02
    • Daikin Ind Ltdダイキン工業株式会社
    • HIGUCHI YORIHIDEMASUDA MASANORIYOSHII TOSHIAKIKOSHO KAZUHIROISHIKAWA SATOSHI
    • F04B39/12F04B39/00H02K7/14
    • PROBLEM TO BE SOLVED: To provide a hermetic compressor capable of suppressing vibration of a casing.
      SOLUTION: The hermetic compressor 1 is provided with an annular motor stator 8, a motor rotor 9, the casing 2 and a plurality of point joints 7. The motor rotor 9 is rotatably provided in an inner space of the motor stator 8. The casing 2 includes a cylindrical part 10. The cylindrical part 10 stores the motor stator 8 and the motor rotor 9. The plurality of point joints 7 fixes between the motor stator 8 and the cylindrical part 10 by point joint while securing a clearance between the motor stator 8 and the cylindrical part 10. Three or more point joints 7 are provided in an outer circumference surface of the motor stator 8 in a circumferential direction. The point joints 7 are formed by spot welding.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够抑制壳体的振动的封闭式压缩机。 解决方案:封闭式压缩机1设置有环形电动机定子8,电动机转子9,壳体2和多个点接头7.电动机转子9可旋转地设置在电动机定子8的内部空间中 壳体2包括圆筒部10.圆筒部10存储电动机定子8和电动机转子9.多个点接头7通过点接头固定在电动机定子8和圆筒部10之间,同时确保 电动机定子8和圆筒部10.三个以上的点接头7沿圆周方向设置在电动机定子8的外周面上。 点接头7通过点焊形成。 版权所有(C)2009,JPO&INPIT