Method and system for cooling a device
A technology of cooling device and heating device, which is applied in the direction of cooling/ventilation device, cooling/ventilation/heating transformation, electromechanical device, etc., and can solve the problem of expensive building industry
Inactive Publication Date: 2014-11-05
NIDEC CONTROL TECHN LTD
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In another application example, motors for elevators or escalators are often located on top of high-rise buildings, which are generally expensive
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[0034] The purpose of the present invention is to provide an improved algorithm / method for controlling a cooling device to cool a heat-generating device. Although a number of different embodiments of the invention are described herein, the invention is not limited to these embodiments, but derivatives of these embodiments are also within the scope of the invention.
[0035] figure 1 A block diagram of a system 10 provided in accordance with a preferred embodiment of the present invention is presented. The system 10 includes a controller 12 , a cooling device 14 , a heating device 16 , a temperature measuring device 18 and a current detecting device 11 . In the embodiment of the present invention, the cooling device 14 is a fan or other similar airflow generating device for blowing the airflow to the heat generating device 16 . Of course, other cooling devices can also be used. For example, the cooling device 14 may comprise a housing or other insulation surrounding the devi...
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There is described a method (20) of cooling a device generating heat. The method includes (21) monitoring a temperature associated with the device. The method also includes (25) automatically operating a cooling means at a first rate if the monitored temperature rises above a first temperature threshold. The method also includes (26) automatically operating the cooling means at a second increased rate if the monitored temperature rises above a second temperature threshold. There is also described a system (10) for cooling a device (16) generating heat. The system (10) comprises means (18) for monitoring a temperature associated with the device (10), cooling means (14), and a controller (12) for operating the cooling means (14) at various rates. The controller (12) is arranged to automatically operate the cooling means (14) at a first rate if the temperature rises above a first temperature threshold. The controller (12) is further arranged to automatically operate the cooling means (14) at a second increased rate if the temperature rises above a second temperature threshold. According to the invention, the point at which the monitored temperature reaches the second threshold may be delayed by operating the cooling means at a first rate prior to operating the cooling means at an increased second rate. In applications in which short periods of relatively high heat generation are experienced, the invention may delay the point at which the cooling means needs to be operated at a high level, reducing the overall noise generation of the cooling means.
Description
technical field [0001] The present invention relates to a method for cooling a heat-generating device, in particular, to a method for cooling a heat-generating device by using a controlled cooling device, such as a fan. The invention also relates to a system arranged for cooling a heat-generating device. Background technique [0002] Motor drivers, or simply drives, are used to control the flow of power to the motor for operation. Under high output current bursts, such as when a motor is operating at its rated threshold, the heat generated by the motor driver can become very high, even in relatively short duration bursts or pulses (approximately 10 seconds) , will also generate high heat. Increased heat generation can cause the motor or drive to operate above safe threshold points, which, if sustained, can cause damage to the motor and / or surrounding components. [0003] A typical way to dissipate the heat generated by the motor is to use a fan to cool the drive. Fan coo...
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IPC IPC(8): G05D23/20
CPCF28F27/00H02K9/00G05D23/1927G05D23/20G05D23/24G06F1/20G06F1/206G05B15/02H05K7/2089
Inventor 约翰·保罗·库尔佩夫斯基西蒙·大卫·哈特
Owner NIDEC CONTROL TECHN LTD