Water chilling method and apparatus for the same
    1.
    发明授权
    Water chilling method and apparatus for the same 失效
    水冷却方法和装置相同

    公开(公告)号:US5097670A

    公开(公告)日:1992-03-24

    申请号:US645392

    申请日:1991-01-24

    摘要: A water chilling apparatus comprising a plurality of chilling modules each having a refrigerating cycle mainly composed of a compressor, a condensor, an evaporator and an expansion mechanism, and a control module having a water pump for feeding, to an object to be chilled, chilling water cooled down by the evaporator of each chilling module, a detector for detecting a temperature of the chilling water and a water temperature controller. A chilling ability of each chilling module in response to a variable frequency is kept at substantially the same level. A capacity of the compressor of each chilling module is variably controlled in a range between an upper limit capacity and a lower limit capacity. The water temperature controller is used to calculate a whole necessary capacity value needed in the compressors of all the chilling modules as a function as a deviation between a set value of the chilling water temperature and a chilling water temperature detected by the detector. The number of the operated chilling modules is controlled in response to the whole necessary capacity value and the upper and lower capacities of each of the chilling modules. The capacity of the compressor of each of the cooling modules is controlled so as to have a capacity value obtained by equally distributing the calculated whole necessary capacity value by the number of the operated chilling modules.

    摘要翻译: 一种冷冻装置,包括多个冷冻模块,每个冷冻模块具有主要由压缩机,冷凝器,蒸发器和膨胀机构组成的冷冻循环,以及具有用于将待冷却物体进行冷却的水泵的控制模块 每个冷却组件的蒸发器冷却的水,用于检测冷却水的温度的检测器和水温控制器。 每个冷却模块响应可变频率的冷却能力保持在基本相同的水平。 每个冷却模块的压缩机的容量可以在上限容量和下限容量之间的范围内可变地控制。 水温控制器用于计算所有冷却模块的压缩机中所需的全部必要容量值,作为冷水温度的设定值与检测器检测到的冷却水温度之间的偏差。 操作的冷却模块的数量是响应于每个冷却模块的整个必需容量值和上限和下限容量来控制的。 每个冷却模块的压缩机的容量被控制为具有通过将计算出的整个必需容量值均匀地分配到所操作的冷却模块的数量而获得的容量值。

    Cooling apparatus and temperature control method therefor
    2.
    发明授权
    Cooling apparatus and temperature control method therefor 失效
    冷却装置及其温度控制方法

    公开(公告)号:US5335708A

    公开(公告)日:1994-08-09

    申请号:US953769

    申请日:1992-09-30

    摘要: A cooling apparatus has a heat exchanger for performing heat exchange between cooling water and fluid, and a flow rate regulator valve for regulating a flow rate of either the cooling water or the fluid which pass through the heat exchanger. A cooling temperature of the fluid is preset. A temperature of the cooled fluid is detected, and an opening degree of the flow rate regulator valve is changed when there is a difference between the detected temperature and the preset temperature. Simultaneously, either a temperature difference of the cooling water and the fluid or a flow rate of the cooling water is detected. The opening degree of the flow rate regulator valve is corrected or compensated on the basis of a result of the detection, thus enabling suitable temperature control of the fluid in accordance with a variation of the temperature or flow rate of the cooling water.

    摘要翻译: 冷却装置具有用于在冷却水和流体之间进行热交换的热交换器,以及调节通过热交换器的冷却水或流体的流量的流量调节阀。 预先设定流体的冷却温度。 检测到冷却液的温度,并且当检测温度与预设温度之间存在差异时,流量调节阀的开度改变。 同时,检测冷却水和流体的温度差或冷却水的流量。 基于检测结果校正或补偿流量调节阀的开度,从而根据冷却水的温度或流量的变化实现对流体的适当温度控制。

    System for controlling cooling equipment
    4.
    发明授权
    System for controlling cooling equipment 失效
    冷却设备控制系统

    公开(公告)号:US5201187A

    公开(公告)日:1993-04-13

    申请号:US463559

    申请日:1990-01-11

    摘要: A control system for controlling cooling equipment comprising a refrigerant circuit for cooling water by heat exchange, a plurality of cooling modules in a backup relationship with an adjusting apparatus for adjusting the cooling capability of the refrigerant circuit and a controller controlling the adjusting apparatus for adjusting the cooling capability, a control module having a coolant temperature sensor and a controller for calculating a cooling capability control command based on the value detected by the coolant temperature sensor. The controller in one of the cooling modules controls the adjusting apparatus and on the cooling capability control commend transmitted from the controller in the control module. Each of the cooling modules has a coolant temperature sensor for detecting the same coolant temperature as detected by the coolant temperature sensor of the control module so that, when an abnormality occurs in the coolant temperature sensor in the control module, the controller in the control module calculates the cooling capability control command based on the value detected by the coolant temperature sensor in the cooling module. The control system is therefore capable of performing a backup operation effective for the occurrence of an abnormality in the control module.

    摘要翻译: 一种用于控制冷却设备的控制系统,包括通过热交换冷却水的制冷剂回路,与用于调节制冷剂回路的冷却能力的调节装置的备用关系的多个冷却模块和控制调节装置的控制器 冷却能力,具有冷却剂温度传感器的控制模块和用于基于由冷却剂温度传感器检测的值计算冷却能力控制命令的控制器。 其中一个冷却模块中的控制器控制调节装置和控制模块中从控制器发出的冷却能力控制。 每个冷却模块具有用于检测由控制模块的冷却剂温度传感器检测到的相同冷却剂温度的冷却剂温度传感器,使得当控制模块中的冷却剂温度传感器发生异常时,控制模块中的控制器 基于由冷却模块中的冷却剂温度传感器检测出的值来计算冷却能力控制指令。 因此,控制系统能够执行对控制模块发生异常有效的备用操作。

    Refrigerating apparatus
    5.
    发明授权
    Refrigerating apparatus 失效
    制冷装置

    公开(公告)号:US4910968A

    公开(公告)日:1990-03-27

    申请号:US345839

    申请日:1989-05-01

    IPC分类号: F25B1/00 F25B49/02 G05D23/19

    摘要: A refrigerating apparatus has a refrigerating cycle including an electromotive compressor whose operational speed is variable in accordance with a drive frequency, and a control unit for operating the compressor at a frequency correspondent to a load so as to control the operation of the refrigerating cycle. Control of the operational frequency of the compressor by the control unit is effected on the basis of target super heat amounts of a discharged gas which is predetermined over an operational frequency range of the compressor. The target super heat amounts are set such that within a lower region of the operational frequency range, each target amount is larger than a super heat amount at which the maximum refrigeration capability is obtained at each operational frequency, so as to suppress a suction pressure of the compressor within an allowable limit for the compressor.

    摘要翻译: 一种制冷装置具有包括电动压缩机的制冷循环,该电动压缩机的运转速度根据驱动频率而变化,以及控制单元,其以与负载对应的频率运转压缩机,以控制制冷循环的运转。 基于在压缩机的工作频率范围内预定的排出气体的目标超热量来实现控制单元对压缩机的工作频率的控制。 目标超热量被设定为使得在工作频率范围的较低区域内,每个目标量大于在每个操作频率处获得最大制冷能力的超热量,以便抑制 压缩机在压缩机的允许极限内。

    Control circuit for air conditioner
    6.
    发明授权
    Control circuit for air conditioner 失效
    空调控制电路

    公开(公告)号:US4557114A

    公开(公告)日:1985-12-10

    申请号:US619539

    申请日:1984-06-11

    摘要: In an air conditioner separated into an indoor unit and an outdoor unit, a control circuit comprises a three-phase power source connected in common to the indoor and outdoor units, and a signal line led out from two phases of the power source. A contact of an electromagnetic relay energizing a compressor of the air conditioner is connected on the portion of the signal line in the indoor unit in series with a current sensor sensing the current flowing through the signal line, and a contact of a protective relay protecting the compressor is connected on the portion of the signal line in the outdoor unit in series with the electromagnetic relay. A first controller is disposed in the indoor unit for controlling on-off of the relay contact of the electromagnetic relay, and a second controller is disposed in the outdoor unit for energizing the protective relay contact thereby controlling on-off of the compressor.

    摘要翻译: 在分为室内机和室外机的空调机中,控制电路包括与室内和室外单元共同连接的三相电源以及从电源两相引出的信号线。 与空气调节器的压缩机通电的电磁继电器的触点与室内机的信号线的部分串联连接,该电流传感器与感应流经信号线的电流的电流传感器串联连接,保护继电器 压缩机与电磁继电器串联连接在室外机的信号线的部分上。 第一控制器设置在室内单元中,用于控制电磁继电器的继电器触点的通断,并且第二控制器设置在室外单元中,用于激励保护继电器触点,从而控制压缩机的开关。

    Motor, compressor, and air conditioner
    8.
    发明授权
    Motor, compressor, and air conditioner 失效
    电机,压缩机和空调

    公开(公告)号:US07501734B2

    公开(公告)日:2009-03-10

    申请号:US11356174

    申请日:2006-02-17

    IPC分类号: H02K3/04

    摘要: The invention provides a motor comprising a stator and a rotor. The stator core includes a laminated stator core made of laminated stator core plates in which straight cut surfaces are formed on a circular outer peripheral surface of the laminated stator core plates. The straight cut surfaces of the laminated stator core plates are circumferentially displaced every predetermined laminated stator core plates so that the straight cut surfaces are uniformly distributed in an axial and a circumferential direction of the laminated stator core. Therefore, a flow passage for lubricating oil is ensured, while local magnetic saturation of the stator core is dissolved and a cogging torque and an induced voltage waveform distortion rate are improved.

    摘要翻译: 本发明提供一种包括定子和转子的马达。 定子铁芯包括由叠层定子铁芯板制成的叠层定子铁芯,其中在层叠的定子铁芯板的圆形外圆周表面上形成有直线切割面。 叠层定子铁心板的直切面每隔预定的叠层定子铁心板周向位移,使得直切面在叠层定子铁心的轴向和圆周方向上均匀分布。 因此,确保了定子铁芯的局部磁饱和,并且齿槽转矩和感应电压波形失真率提高的润滑油流路。