KR200467737Y1 - Fan motor driving device - Google Patents

Fan motor driving device Download PDF

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Publication number
KR200467737Y1
KR200467737Y1 KR2020130000987U KR20130000987U KR200467737Y1 KR 200467737 Y1 KR200467737 Y1 KR 200467737Y1 KR 2020130000987 U KR2020130000987 U KR 2020130000987U KR 20130000987 U KR20130000987 U KR 20130000987U KR 200467737 Y1 KR200467737 Y1 KR 200467737Y1
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KR
South Korea
Prior art keywords
power
frequency
fan motor
hard disk
inverter
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Application number
KR2020130000987U
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Korean (ko)
Inventor
최명용
Original Assignee
(주)아이닉스디
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Publication date
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Priority to KR2020130000987U priority Critical patent/KR200467737Y1/en
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Publication of KR200467737Y1 publication Critical patent/KR200467737Y1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/206—Cooling means comprising thermal management

Abstract

The present invention relates to a fan motor driving device for a hard disk test equipment, and more specifically, a phase detecting unit for detecting the frequency of the input power, and when the frequency of the power detected by the phase detecting unit is not the set frequency is set by driving the inverter The CPU is configured to generate a power having a frequency, an inverter that generates and outputs a power of a set frequency by driving under the control of the CPU, and a plurality of fan motor driving units that supply power from the inverter to a plurality of blower fans. The fan motor used in the hard disk test equipment can supply AC power with a constant frequency at all times, so that the fan motor can operate at a constant rotational speed, thereby maintaining a constant temperature in the hard disk test equipment. It relates to a fan motor drive for a hard disk test equipment.

Figure R2020130000987

Description

Fan motor driving device for hard disk test equipment

The present invention relates to a fan motor driving device for a hard disk test equipment, and more specifically, a phase detecting unit for detecting the frequency of the input power, and when the frequency of the power detected by the phase detecting unit is not the set frequency is set by driving the inverter The CPU is configured to generate a power having a frequency, an inverter that generates and outputs a power of a set frequency by driving under the control of the CPU, and a plurality of fan motor driving units that supply power from the inverter to a plurality of blower fans. The fan motor used in the hard disk test equipment can supply AC power with a constant frequency at all times, so that the fan motor can operate at a constant rotational speed, thereby maintaining a constant temperature in the hard disk test equipment. It relates to a fan motor drive for a hard disk test equipment.

1 shows a typical hard disk test equipment,

The test device 1 is provided with a built-in hard disk 2, and configured to test various performances of the hard disk 2, and the temperature inside the test equipment 1 is constant. A plurality of blowing fans (3) are installed so as to be maintained, and a fan driving device (4) for supplying driving power to the blowing fan (3) to operate the blowing fan (3) is installed.

The hard disk test equipment is installed to test the performance of the hard disk (2) for a long time by installing a plurality of produced hard disk (2) in the test equipment (1), a number of installed in the test equipment (1) Blower fan (3) is to function to ventilate the hard disk (2) to be tested in a constant temperature environment.

However, since the conventional blower fan driving apparatus simply supplies AC power input to the blower fan to operate the blower fan, the rotation speed of the blower fan varies when AC power having a different frequency is input for each country. There was a problem that the disk had to be tested.

In other words, in Korea, 220V AC power with 60Hz frequency is supplied. In China, 220V AC power with 50Hz frequency is supplied. Therefore, if the hard disk test equipment set for the Korean environment is installed in China, Since the frequency of AC power is low as 50Hz, even if the same power is supplied to the blower fan, the rotation speed of the blower fan is lowered. Therefore, the performance of the hard disk was tested under different temperature conditions than in Korea.

Therefore, the present invention for solving the above problems is a phase detector for detecting the frequency of the input power, when the frequency of the power detected by the phase detection unit is not the set frequency by driving the inverter to generate a power having a set frequency Fan motors used for hard disk test equipment, consisting of an inverter that generates and outputs power of a set frequency by driving under the control of a CPU, and a plurality of fan motor drive units that supply power from the inverter to a plurality of blower fans. It is possible to supply AC power with a constant frequency so that the fan motor can be operated at a constant rotational speed, thereby driving the fan motor for the hard disk test equipment to keep the temperature in the hard disk test equipment constant. It is an object to provide a device.

The present invention for achieving the above object

In the fan motor driving apparatus for hard disk test equipment to supply the driving power to a plurality of blowing fans installed in the hard disk test equipment,

A key input unit for setting the frequency of the AC power supplied to the blowing fan;

A phase detector detecting a frequency of an input power source;

A CPU for driving the inverter to generate a power having a set frequency when the frequency of the power detected by the phase detector is not the set frequency;

An inverter for driving under the control of the CPU to convert the input AC power into a DC voltage and then converting the DC voltage into an AC power, and converting the converted AC power so as to have a set frequency;

A plurality of fan motor drivers connected to each blower fan and supplying AC power output from the inverter to each blower fan connected thereto;

.

According to the present invention, even if AC power of different frequencies is supplied to different countries, the fan motor used for the hard disk test equipment can always supply AC power with a constant frequency, so that the fan motor can operate at a constant rotational speed. This can be expected to maintain a constant temperature in the hard disk test equipment.

1 is a view showing a typical hard disk test equipment.
Figure 2 is a block diagram showing a fan motor drive device for a hard disk test equipment of the present invention.
3 and 4 is a view showing a fan motor driving apparatus of the present invention.

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings 2 to 4 as follows.

According to the above drawings,

In the fan motor driving apparatus for hard disk test equipment for supplying driving power to a plurality of blowing fans 20 installed in the hard disk test equipment,

A key input unit 16 for setting a frequency of AC power supplied to the blowing fan 20;

A display unit 15 displaying a frequency of power supplied to the blowing fan 20 under the control of the CPU 14;

An SMPS 11 for converting an input power source into a DC voltage and supplying it to the drive voltage of the CPU 14;

A phase detector 12 detecting a frequency of the input power;

A CPU 14 driving the inverter 13 to generate a power having a set frequency when the frequency of the power detected by the phase detection unit 12 is not a set frequency;

An inverter 13 which is driven under the control of the CPU 14, converts the input AC power into a DC voltage, and then converts the DC voltage into an AC power again, and converts the converted AC power so as to have a set frequency;

A plurality of fan motor driving units 19 connected to each blower fan 20 and supplying AC power output from the inverter 13 to the respective blower fans 20 connected thereto;

.

Further, the communication unit 17 is further configured to communicate with the external control device 18,

The CPU 14 is characterized in that to reset the set frequency in accordance with the control command transmitted from the external control device 18.

In addition, the CPU 14 stops the inverter 13 when the frequency of the input power detected by the phase detector 12 is equal to the set frequency, and then controls the input power to be directly supplied to the fan motor driver 19. It features.

Referring to the operation of the present invention configured as described above is as follows.

The fan motor driving apparatus 10 of the present invention can set the frequency of the AC power to be supplied to the blowing fan 20 by the user using the key input unit 16.

That is, as the user presses a key provided in the key input unit 16, the set frequency is up and down, and the CPU 14 stores the set frequency as the input frequency. It is set.

In the description of the present invention, the set frequency is set to 60 Hz, and the input AC 220V power source has a frequency of 50 Hz.

Each blowing fan 20 installed in the test equipment is connected to correspond to a plurality of fan motor drive unit 19 constituting the fan motor drive device 10, the communication unit 17 and the external control device 18 Connect.

The external control device 18 may use a personal PC.

In this state, when the external AC power is input, the SMPS 11 converts the AC 220V power input to the DC voltage and supplies the DC voltage to the driving voltage of the CPU 14, and the phase detection unit 12 phases the input AC 220V power. Is detected and the frequency of the input power source is output to the CPU 14.

The CPU 14 determines whether the frequency (50 Hz) of the input power source detected by the phase detector 12 is equal to the set frequency (60 Hz).

As a result of the determination, since the frequency (50 Hz) and the set frequency (60 Hz) of the input power supply are different from each other, the CPU 14 operates the inverter 13 to supply AC 220V power having a frequency of 60 Hz to the fan motor driver 19. Be sure to

The inverter 13 converts the AC 220V power supply of the 50Hz frequency input under the control of the CPU 14 into a DC voltage, and then converts the DC voltage into an AC voltage, and when converting the DC voltage into an AC voltage, Switch operation to have frequency and convert to AC power.

The AC 220V power having the 60Hz frequency converted by the inverter 13 is supplied to each fan motor driver 19, and the fan motor driver 19 is supplied with AC220V power supplied from the inverter 13 by the blower fan 20. By supplying the power supply, the blowing fan 20 can always be driven by a power source having a constant frequency.

By the operation of the present invention as described above, it can be expected that the blowing fan 20 set to operate normally in the AC220V power source having a 60 Hz frequency in Korea can be used as it is in China provided with an AC220V power source having a 50 Hz frequency. In addition, the blower fan 20 is always operated by a power source having a constant set frequency to maintain a constant temperature inside the test equipment (1) at all times.

On the other hand, if it is determined that the frequency of the input AC power detected by the phase detector 12 is the same as the set frequency, the CPU 14 stops the inverter 13 and then the fan motor driver 19 supplies the input power as it is. Control to supply to the blowing fan (20).

That is, the fan motor driver 19 has a switching function of selecting one of the output voltage of the inverter 13 and the voltage input to the external fan 20 and supplying it to the blower fan 20, and under the control of the CPU 14. The output voltage or the external input voltage of the inverter 13 is selected and supplied to the blower fan 20.

In addition, in the present invention, the operator may variably set the set frequency in real time using the external control device 18.

That is, when the user transmits a control command for changing the set frequency using the external control device 18 to the CPU 14 through the communication unit 17, the CPU 14 is transmitted from the external control device 18. The frequency is set to a new set frequency, and thereafter, the power supply having a predetermined set frequency is supplied to the blower fan 20 by comparing whether the frequency of the input power detected by the phase detector 12 is equal to the newly set set frequency. It is.

10: fan motor drive, 11: SMPS,
12: phase detector, 13: inverter,
14: CPU, 15: display unit,
16: key input unit, 17: communication unit,
18: external control device, 19: fan motor drive unit,
20: blower fan,

Claims (3)

In the fan motor driving apparatus for hard disk test equipment for supplying driving power to a plurality of blowing fans 20 installed in the hard disk test equipment,
A key input unit 16 for setting a frequency of AC power supplied to the blowing fan 20;
A communication unit 17 communicating with the external control device 18;
A phase detector 12 detecting a frequency of the input power;
If the frequency of the power detected by the phase detector 12 is not the set frequency, the inverter 13 is driven to control to generate a power having a set frequency, and according to a control command transmitted from the external controller 18, the set frequency. A CPU 14 for resetting the memory;
An inverter 13 which is driven under the control of the CPU 14, converts the input AC power into a DC voltage, and then converts the DC voltage into an AC power again, and converts the converted AC power so as to have a set frequency;
And a plurality of fan motor driving units 19 connected to each blowing fan 20 and supplying AC power output from the inverter 13 to each blowing fan 20 connected thereto.
When the frequency of the input power detected by the phase detector 12 is equal to the set frequency, the CPU 14 stops the inverter 13 and controls the input power to be directly supplied to the fan motor driver 19. Fan motor drive for hard disk test equipment. delete delete
KR2020130000987U 2013-02-07 2013-02-07 Fan motor driving device KR200467737Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020130000987U KR200467737Y1 (en) 2013-02-07 2013-02-07 Fan motor driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020130000987U KR200467737Y1 (en) 2013-02-07 2013-02-07 Fan motor driving device

Publications (1)

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KR200467737Y1 true KR200467737Y1 (en) 2013-07-02

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KR2020130000987U KR200467737Y1 (en) 2013-02-07 2013-02-07 Fan motor driving device

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040000048A (en) * 2002-06-19 2004-01-03 공병성 Circuit for AC power frequency control using frequency counting
JP2004280164A (en) * 2003-03-12 2004-10-07 Nec Corp Fan type air-cooling device and its driving control method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040000048A (en) * 2002-06-19 2004-01-03 공병성 Circuit for AC power frequency control using frequency counting
JP2004280164A (en) * 2003-03-12 2004-10-07 Nec Corp Fan type air-cooling device and its driving control method

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