CN101196769A - Intelligent control cooling method for cabinet inside - Google Patents

Intelligent control cooling method for cabinet inside Download PDF

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Publication number
CN101196769A
CN101196769A CNA200610119249XA CN200610119249A CN101196769A CN 101196769 A CN101196769 A CN 101196769A CN A200610119249X A CNA200610119249X A CN A200610119249XA CN 200610119249 A CN200610119249 A CN 200610119249A CN 101196769 A CN101196769 A CN 101196769A
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China
Prior art keywords
fan
cabinet
temperature
case
power supply
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Pending
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CNA200610119249XA
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Chinese (zh)
Inventor
吴彦琼
项敏
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Shanghai Minhang Middle School
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Shanghai Minhang Middle School
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Publication date
Application filed by Shanghai Minhang Middle School filed Critical Shanghai Minhang Middle School
Priority to CNA200610119249XA priority Critical patent/CN101196769A/en
Publication of CN101196769A publication Critical patent/CN101196769A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a heat dissipation method of the internal computer case, in particular to a case internal intelligent controlling heat dissipation method, which comprises the following steps: A. Installing a filter screen at a place of an air inlet positioned at downward area of a front panel bottom; B. Preparing two fans, one is in common with specification of the power supply fan, the other is an exhaust fan special for case with bigger volume; power supply fan with same specification is provided with a fan breaking off protection circuit; C. Exhaust holes are opened and special exhaust fan is provided at midpoint position of the case top; D. A thermal resistor serves as a temperature sensor, which has an IC time-base integrated circuit as a controlling element; the time base integrated circuit is connected into a typical monostabillity circuit, the transient state time is determined by the numerical value of a resistance R2 and a capacitance C1; if the temperature in the case is higher than the set value, the power supply of the fan motor can be electrified; if the temperature in the case is lowered to the set value, the assistant heat dissipation system can stop work and the circuit can restore to steady state. The invention can intelligently control exhaust and heat dissipation work in the case.

Description

Intelligent control cooling method for cabinet inside
Technical field
The present invention relates to the heat dissipating method of computer cabinet inside, particularly a kind of intelligent control cooling method for cabinet inside.
Background technology
At present, the thermal value of main flow computer fittings is increasing, and also when the river rises the boat goes up for the temperature in the computer housing, has simply just become electric oven soon.So strengthen the rotating speed of radiator fan, increase the exhaust air rate of radiator fan, on various high euthermic chips, increase huge heat radiator.The heat that each parts distribute all accumulates in the cabinet, so the extraction fan of the drawing fan of cabinet front, back has just arisen at the historic moment., though this heat dissipating method effect is more remarkable, but it but exists three more significant defectives.
The first, must buy and have the novel cabinet of laying this fan, this two kinds of fans could be installed, increased cost virtually.
The second, only noted radiating effect and ignored because of open cabinet and make dust, moisture also enter the consequence of cabinet thereupon.Dust accretions will produce various potential faults in the course of time on accessories such as power supply, mainboard, video card.
The 3rd, under the condition of heat high temperature, all radiator fans all must be opened, this point is undoubtedly.But when arrived severe winter, environment temperature is extremely acute to descend, and the computer of this moment does not need the help of other auxiliary heat dissipation equipment, only needs the fan of power supply self, just can finish the heat radiation task well.We can close fully those not only consumed power, but also produce air-breathing, the extraction fan of noise.
As mentioned above, existing case radiation structure also has some shortcomings, demands urgently improving.
Summary of the invention
The object of the present invention is to provide intelligent control cooling method for cabinet inside, mainly solve existing technical matters in the above-mentioned prior art, it can be according to the temperature conditions in the cabinet, the use of cooling mechanism in the robot brain case.
For addressing the above problem, the present invention is achieved in that
A kind of intelligent control cooling method for cabinet inside is characterized in that it comprises the steps:
A is installed in a screen pack owing to be positioned at the air inlet place of the bottom of front panel towards upper/lower positions;
B prepares two fans, and one communicates with the specification of power supply fan, and another is the extraction fan of the bigger cabinet special use of volume; At first power pack is taken off and is opened shell, in the bottom of power pack towards CPU one side, the local perforate identical with the extraction fan position, the identical fan of that specification is installed, be that 47 ohm, power are that 0.5 watt electric resistance welding goes need not with that resistance of connecting in the fan power supply loop then with electric soldering iron, with a specification is the protective tube of 0.25 peace, burn-on lead and be welded on the position of original resistance and promptly can substitute it of two sides;
C offers vent port and special-purpose extraction fan is installed in centre position, the top of cabinet;
D is provided with thermistor as temperature sensor, by the IC time-base integrated circuit as control element; This time-base integrated circuit is connected into typical monostable circuit, and transient state time is decided by the numerical value of resistance R 2 with capacitor C 1; If the temperature in the cabinet is higher than setting value, because the resistance of positive temperature coefficient (PTC) temperature-sensitive strengthens along with the rising of temperature, then IC1 is set to transient state, and will connect the power supply of fan electromotor this moment; If temperature in chassis is reduced to after the setting value, the resistance of thermistor reduces, and IC1 transient state finishes, and the auxiliary heat dissipation system quits work, and circuit is replied lower state.
Described intelligent control cooling method for cabinet inside is characterized in that this screen pack uses the employed copper mesh of hydropress oil filter.
Described intelligent control cooling method for cabinet inside is characterized in that this cabinet top produces two semicircular dodge gates, guarantee that they can be pushed open by the wind-force that the overhead fan blows out, and after fan stopped operating, they can lean on again the gravity of self to close.
Described intelligent control cooling method for cabinet inside, circuit when it is characterized in that this IC1 selects NE555 or SL555 or μ 555 for use.
By technique scheme, the invention has the beneficial effects as follows:
1, the present invention surveys and control circuit by temperature, can intelligently control the air discharging and radiating work in the cabinet.
2, the present invention can avoid dust to enter in the cabinet by the architecture advances of air inlet, helps prolonging the serviceable life of each components and parts in the cabinet.
Embodiment
Introduce a kind of concrete cabinet intelligent heat dissipation method below.
Because air inlet is positioned at the place down, bottom of front panel, the dust on the desktop is inhaled in the cabinet easily.In order to reduce entering of dust as far as possible, we call in the employed copper mesh of a slice hydropress oil filter, with seccotine copper mesh are being bonded at the air inlet place.This kind copper mesh is to use superfine copper wire establishment, and the aperture of each aperture is quite same, has so both guaranteed ventilation, has played the effect that prevents that dust from entering again, and effect is fine.If can not find copper mesh, also can replace with general steel mesh, but effect will be beaten some discounts.
Next, prepare two fans exactly, one communicates with the specification of power supply fan, and another is the extraction fan of the bigger cabinet special use of volume.At first power pack is taken off and opened shell, towards CPU one side, the identical fan of that specification is installed in the local perforate identical with the extraction fan position in the bottom of power pack.Be that 47 ohm, power are that 0.5 watt electric resistance welding goes need not with that resistance of connecting in the fan power supply loop then with electric soldering iron.The main effect of this resistance be when fan for some reason rotating speed reduce or stall, when supply current and then strengthens, play the restriction electric current excessive, prevent to burn the fan loop effect after the overload.But its existence has also influenced simultaneously the rotating speed of fan, is 0.25 protective tube of pacifying with a specification, burn-on lead and be welded on the position of original resistance and promptly can substitute it of two sides.Do not burn power supply in case worry protective tube fusing, fan stall meeting,, all have fan stall holding circuit because run-of-the-mill is power supply preferably.Can judge whether to have defencive function by fast insert-pull fan power supply plug before this (because of power supply directly joins with civil power, must take care, and power supply output can not zero load).If do not possess fan stall defencive function, just skip this step.
In centre position, the top of cabinet,, open the circular hole that a diameter is slightly less than the flabellum diameter according to the flabellum diameter of cabinet extraction fan.With the compasses whole circle that draws, use electric drill along the inner unwanted part of setting-out again, accomplish fluently vent port one by one at leisure, with little file the hole is filed one by one logically at last, and the corner is revised level and smooth, brill is used on the screw hole of fan attachment again.Two semicircular dodge gates can be produced in the top, guarantee that they can be pushed open by the wind-force that the overhead fan blows out, and after fan stopped operating, they can lean on again the gravity of self to close, and also will take into account whole aesthetic simultaneously.
In order to realize the intelligent surveillance housing temperature, so that whether decision opens the auxiliary heat dissipation system, we also need a cover electronic installation.Its adopts thermistor as temperature sensor, by the NE555 time-base integrated circuit as control element.Not only have the safe and reliable safe characteristics of action, and simple in structure, make easily.
Its principle of work is such: time-base integrated circuit NE555 (IC1) is connected into typical monostable circuit, transient state time is set at about 10 seconds and (is decided by the numerical value of resistance R 2 with capacitor C 1), when we opened computer for the first time, this control device was also started working.Suppose this moment the temperature region in the cabinet we set temperature the time (as 35 ℃), then the time base circuit during IC1 is in lower state.If the temperature in the cabinet is higher than setting value, because the resistance of positive temperature coefficient (PTC) temperature-sensitive, strengthen along with the rising of temperature, then IC1 is set to transient state, to connect the power supply of fan electromotor this moment, the auxiliary heat dissipation system starts working, through after about 10 seconds, if temperature in chassis also is not reduced to setting value, circuit can not be reset, the auxiliary heat dissipation system will keep work always, after housing temperature was reduced to setting value, the resistance of thermistor reduced, and IC1 transient state finishes, the auxiliary heat dissipation system quits work, and circuit is replied lower state.
This IC1 can select NE555, SL555, μ 555 isochronous circuits for use, and is very difficult to find and price is extremely low.Thermistor Rt must select positive temperature coefficient (PTC), and its profile is the sequin peony, and resistance is 470 ohm.Capacitor C 1 requires that quality will be got well, leakage current is little, otherwise will cause transient state time inaccurate.
Through after the above-mentioned several steps, intelligent cabinet cooling system just can come into operation.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.

Claims (4)

1. an intelligent control cooling method for cabinet inside is characterized in that it comprises the steps:
A is installed in a screen pack owing to be positioned at the air inlet place of the bottom of front panel towards upper/lower positions;
B prepares two fans, and one communicates with the specification of power supply fan, and another is the extraction fan of the bigger cabinet special use of volume; At first power pack is taken off and is opened shell, in the bottom of power pack towards CPU one side, the local perforate identical with the extraction fan position, the identical fan of that specification is installed, be that 47 ohm, power are that 0.5 watt electric resistance welding goes need not with that resistance of connecting in the fan power supply loop then with electric soldering iron, with a specification is the protective tube of 0.25 peace, burn-on lead and be welded on the position of original resistance and promptly can substitute it of two sides;
C offers vent port and special-purpose extraction fan is installed in centre position, the top of cabinet;
D is provided with thermistor as temperature sensor, by the IC time-base integrated circuit as control element; This time-base integrated circuit is connected into typical monostable circuit, and transient state time is decided by the numerical value of resistance R 2 with capacitor C 1; If the temperature in the cabinet is higher than setting value, because the resistance of positive temperature coefficient (PTC) temperature-sensitive strengthens along with the rising of temperature, then IC1 is set to transient state, and will connect the power supply of fan electromotor this moment; If temperature in chassis is reduced to after the setting value, the resistance of thermistor reduces, and IC1 transient state finishes, and the auxiliary heat dissipation system quits work, and circuit is replied lower state.
2. intelligent control cooling method for cabinet inside according to claim 1 is characterized in that this screen pack uses the employed copper mesh of hydropress oil filter.
3. intelligent control cooling method for cabinet inside according to claim 1, it is characterized in that this cabinet top produces two semicircular dodge gates, guarantee that they can be pushed open by the wind-force that the overhead fan blows out, and after fan stopped operating, they can lean on again the gravity of self to close.
4. according to claim 1 or 2 or 3 described intelligent control cooling method for cabinet inside, circuit when it is characterized in that this IC1 selects NE555 or SL555 or μ 555 for use.
CNA200610119249XA 2006-12-06 2006-12-06 Intelligent control cooling method for cabinet inside Pending CN101196769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA200610119249XA CN101196769A (en) 2006-12-06 2006-12-06 Intelligent control cooling method for cabinet inside

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA200610119249XA CN101196769A (en) 2006-12-06 2006-12-06 Intelligent control cooling method for cabinet inside

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Publication Number Publication Date
CN101196769A true CN101196769A (en) 2008-06-11

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101650760B (en) * 2009-08-28 2011-04-20 曙光信息产业(北京)有限公司 Heat dissipation simulation method and device of computer
CN102081443A (en) * 2009-12-01 2011-06-01 鸿富锦精密工业(深圳)有限公司 Computer case
CN101697162B (en) * 2009-10-22 2011-08-10 广东开心信息技术有限公司 Method and system for intelligently recommending ordering dishes
CN102200814A (en) * 2010-03-24 2011-09-28 鸿富锦精密工业(深圳)有限公司 Cabinet cooling device
CN104858521A (en) * 2013-10-23 2015-08-26 庄景阳 Electromagnetic heat conduction block
CN105014183A (en) * 2013-10-16 2015-11-04 泉州市洛江双阳高捷机动车零部件电脑设计工作室 Electromagnetic telescopic type electric soldering iron cooling rack
CN112462817A (en) * 2020-11-06 2021-03-09 国网河南省电力公司镇平县供电公司 Temperature control device for control and protection case

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101650760B (en) * 2009-08-28 2011-04-20 曙光信息产业(北京)有限公司 Heat dissipation simulation method and device of computer
CN101697162B (en) * 2009-10-22 2011-08-10 广东开心信息技术有限公司 Method and system for intelligently recommending ordering dishes
CN102081443A (en) * 2009-12-01 2011-06-01 鸿富锦精密工业(深圳)有限公司 Computer case
CN102200814A (en) * 2010-03-24 2011-09-28 鸿富锦精密工业(深圳)有限公司 Cabinet cooling device
CN105014183A (en) * 2013-10-16 2015-11-04 泉州市洛江双阳高捷机动车零部件电脑设计工作室 Electromagnetic telescopic type electric soldering iron cooling rack
CN104858521A (en) * 2013-10-23 2015-08-26 庄景阳 Electromagnetic heat conduction block
CN112462817A (en) * 2020-11-06 2021-03-09 国网河南省电力公司镇平县供电公司 Temperature control device for control and protection case

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Open date: 20080611