CN1747642A - Control and controller of fan for preventing apparatus from overheating - Google Patents
Control and controller of fan for preventing apparatus from overheating Download PDFInfo
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- CN1747642A CN1747642A CN 200410074588 CN200410074588A CN1747642A CN 1747642 A CN1747642 A CN 1747642A CN 200410074588 CN200410074588 CN 200410074588 CN 200410074588 A CN200410074588 A CN 200410074588A CN 1747642 A CN1747642 A CN 1747642A
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Abstract
A method and its device for controlling a fan used for dissipating the heat generated by device in order to prevent overheat of device caused by power loss features that said fan is coupled with the input power supply of device for supplying electric power to the fan and when the input power supply is lost, said fan is coupled with a stand-by power supply for continuously playing its heat dissipating role.
Description
Technical field
The present invention relates to the fan cooled heat radiation of equipment, is that a kind of device powers down of avoiding causes overheated control method for fan and device specifically.
Background technology
Long-term when in running order when communication equipment, the thermal losses of equipment is very big, and mode that need be by cooling is delivered to the outside with the heat of equipment, thereby reduces device temperature, improves the reliability of communication equipment.
Present communication equipment generally adopts the fan cooled radiating mode, and this kind mode is simple, practicality and cost are low.But because most fan and equipment of adopting powers on and the while power-down mode simultaneously, during device start work, fan also starts work; The fan heat radiation of also cutting off the power supply no longer in the time of device powers down.When the unexpected power down of equipment or when artificially cutting off the power supply, fan just stops operating, no longer play the effect of cooling, heat radiation, and exist bigger waste heat not distribute on the various key chips of equipment, this waste heat that can not distribute causes thermal shock, reliability to chip reliability and equipment work also causes bigger influence, may cause equipment key chip thermal failure or aging.
In order to solve the problem of above existence, the part communication equipment has adopted a kind of fan cooled mode that adopts fan and equipment sequence power-on and order outage.It is when device start is worked, the fan delayed startup; When device looses power, by software or hardware is automatic or manual control equipment outage earlier, the fan certain hour of delaying time after device powers down cuts off the power supply again, thereby fan can also be cooled off the equipment waste heat after device powers down.But this kind mode can only be to there being the situation of purpose outage, and the delay cut-off by fan comes the equipment waste heat is cooled off; And under the situation of sudden power, fan still can cut off the power supply simultaneously with equipment, and the problems referred to above still exist.
At present, though also the someone to adopt the UPS uninterrupted power supply be power devices when device powers down, this uninterrupted power supply all can be preserved data design for equipment after outage, rather than at fan; Behind the input power cut-off of equipment, uninterrupted power supply is kept equipment and is worked on a period of time, and stop power supply or electric energy exhausts at uninterrupted power supply, when equipment quits work, fan also quits work simultaneously, it still exists the equipment waste heat to distribute not go out, and equipment is caused dysgenic problem.
Summary of the invention
The objective of the invention is to, provide a kind of device powers down of avoiding to cause overheated control method for fan and device, make equipment in sudden power with have under the situation of purpose outage, all can effectively leave by She's heat of fan cooled with equipment.
Above-mentioned purpose of the present invention can adopt following technical scheme to realize: a kind of device powers down of avoiding causes overheated control method for fan, in the equipment that adopts the fan heat radiation, described fan with for the input power supply of described power devices is coupled, be that described fan is powered at the just often described input power supply of power supply;
Described input power supply is monitored, when monitoring described input power supply power-fail, a described fan and a back-up power apparatus are coupled, and described back-up power apparatus is described fan power supply, makes described fan endure behind described input power supply power-fail.
As a kind of embodiment, described back-up power apparatus can be charging cell device, and under described input power supply normal operation, this input power supply is given rechargeable battery powered by a charging circuit;
As another execution mode, described back-up power apparatus can be cell apparatus.
As another execution mode, described back-up power apparatus also can be capacitive means, and when described input power supply power-fail, electric capacity discharges, so that described fan work.
When described input power supply power-fail, detect the input power supply power-fail by a power-fail detection circuit, start booster circuit then, the voltage that described back-up power apparatus is provided is raised to the value that described fan can be worked, and by again will be for the dump of described fan power supply after delay circuit time-delay a period of time or exhaust up to the electric energy of back-up power apparatus to the fan power supply always.
In the present invention, described fan can be specially DC fan.
Charging circuit among the present invention can adopt the mode of constant voltage/constant current charging that battery is charged, and keeps battery capacity;
Described power-fail detection circuit: when input during power cut-off, detect, provide an input power supply power-fail signal to boosting/delay circuit under the power-down conditions, boost/Rule of judgment of delay circuit as startup by power-fail detection circuit;
Described boosting/delay circuit: booster circuit is by the high-frequency power electronic technology, converts the low pressure of battery to high pressure that fan can drive, and guaranteeing can drive fan work by battery; Delay circuit is after input power supply power-fail signal occurring, delays time automatically, reaches to turn-off booster circuit behind the delay time and finally turn-off fan.
The present invention can further adopt a spacer assembly, prevents that described back-up power apparatus discharges to described fan when described input power supply normal power supply.
The present invention also provides a kind of device powers down of avoiding of said method that realizes to cause overheated fan control device, comprising: fan, be the input power supply that the equipment that adopts the fan heat radiation is powered, described fan and described input power supply are coupled; This device also comprises: back-up source, power-fail detection circuit, fan control circuitry;
Described fan is coupled by described fan control circuitry and described back-up source; Described power-fail detection circuit is coupled with described input power supply and described fan control circuitry respectively;
Described power-fail detection circuit is monitored described input power supply, when monitoring described input power supply power-fail, transmit an input power supply power-fail signal and give described fan control circuitry, described fan control circuitry is described fan power supply with described back-up source, makes described fan endure behind described input power supply power-fail.
Spacer assembly among the present invention can be specially isolating diode.
The delay time of the delay circuit among the present invention can preestablish.
Adopt said method of the present invention and device, under the situation of any outage, can start stand-by power supply continues to power to fan, fan is remained in operation, thereby after outage, equipment is proceeded cooling heat dissipation, She's heat of equipment is in time distributed, and the waste heat that guarantees equipment can the damage equipment device, has improved the reliability of equipment.
Description of drawings
Fig. 1 structured flowchart of the present invention;
Fig. 2 workflow diagram of the present invention;
Fig. 3 schematic block circuit diagram of the present invention.
Embodiment
As shown in Figure 1, the invention provides a kind of device powers down of avoiding and cause overheated fan control device, comprising: fan, input power supply, back-up source, power-fail detection circuit, the fan control circuitry of powering for the equipment that adopts the fan heat radiation; Described fan and described input power supply are coupled;
Described fan is coupled by described fan control circuitry and described back-up source; Described power-fail detection circuit is coupled with described input power supply and described fan control circuitry respectively.
As described in Figure 2, during this device busy, described power-fail detection circuit is monitored described input power supply, when monitoring described input power supply power-fail, transmit an input power supply power-fail signal and give described fan control circuitry, described fan control circuitry is described fan power supply with described back-up source, makes described fan endure behind described input power supply power-fail.
Like this, because the present invention adopts back-up source to pass through the detection of power-fail detection circuit, make fan control device under the situation of any outage, the person can start stand-by power supply and continue to power to fan, fan is remained in operation, thereby after outage equipment is proceeded cooling heat dissipation, the waste heat of equipment is in time distributed, avoided the damage of waste heat, guaranteed the reliability of chip reliability and equipment work equipment.
As shown in Figure 3, as a kind of embodiment of the present invention, described back-up power apparatus can be can reusable charging cell device, and under described input power supply normal operation, this input power supply is given rechargeable battery powered in the fan control circuitry by a charging circuit.When described input power supply power-fail, detect the input power supply power-fail by a power-fail detection circuit, start then and boost and delay circuit (boosting/delay circuit), described rechargeable battery is raised to the value that described fan can be worked, and will be the dump of described fan power supply again after time-delay a period of time.
As another execution mode, described back-up power apparatus also can be the common batteries device, when described input power supply power-fail, detect the input power supply power-fail by a power-fail detection circuit, this power-fail detection circuit is controlled a booster circuit job, described cell apparatus is powered to fan, by turn-off fan after one section time-delay of delay circuit or power up to running down of battery to fan always.
As another execution mode, described back-up power apparatus also can be jumbo capacitive means, and when described input power supply power-fail, electric capacity discharges, so that described fan work.When described input power supply power-fail, detect the input power supply power-fail by a power-fail detection circuit, start booster circuit then, the voltage that provides during with described capacitor discharge is raised to the value that described fan can be worked, and finishes up to capacitor discharge by turn-off fan after one section time-delay of delay circuit or power to fan always.
As shown in Figure 3, in the present invention, described fan can be specially DC fan.
Charging circuit among the present invention can adopt the mode of constant voltage/constant current charging that battery is charged, and keeps battery capacity.
As shown in Figure 3, power-fail detection circuit among the present invention: when the input power cut-off, detect by power-fail detection circuit, provide an input power supply power-fail signal (pwr-failure) to give under the power-down conditions and boosted/delay circuit, boost/Rule of judgment of delay circuit as startup.
Described boosting/delay circuit: booster circuit is by the high-frequency power electronic technology, adopts typical boost circuit to convert the low pressure of battery to high pressure that fan can drive, and guaranteeing can drive fan work by battery; Delay circuit is after input power supply power-fail signal (pwr-failure) occurring, delays time automatically, reaches to turn-off booster circuit behind the delay time and finally turn-off fan.The delay time of this delay circuit can require according to the heat radiation of equipment to preestablish.
The present invention can further include spacer assembly, as shown in Figure 3, is specially isolating diode in the present embodiment.When normal power supply, fan is by the input power supply power supply of equipment, and when this isolating diode can prevent owing to the power-fail detection circuit fault, back-up power apparatus discharged to fan.
The present invention can make fan can continue for some time running under the situation of any outage, for equipment provides cooling heat dissipation, guarantees that the waste heat of equipment can not damage device, has improved the reliability of equipment.
The foregoing description is several embodiment of the present invention, only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (16)
1, a kind of device powers down of avoiding causes overheated control method for fan, in the equipment that adopts the fan heat radiation, described fan with for the input power supply of described power devices is coupled, be that described fan is powered at the just often described input power supply of power supply, it is characterized in that
Described input power supply is monitored, when monitoring described input power supply power-fail, a described fan and a back-up power apparatus are coupled, and described back-up power apparatus is described fan power supply, makes described fan endure behind described input power supply power-fail.
2, a kind of device powers down of avoiding as claimed in claim 1 causes overheated control method for fan, it is characterized in that, described back-up power apparatus is a charging cell device, and under described input power supply normal operation, this input power supply is given rechargeable battery powered by a charging circuit.
3, the device powers down of avoiding as claimed in claim 1 causes overheated control method for fan, it is characterized in that, described back-up power apparatus is cell apparatus or capacitive means.
4, cause overheated control method for fan as the described a kind of device powers down of avoiding of the arbitrary claim of claim 1-3, it is characterized in that, when described input power supply power-fail, detect the input power supply power-fail by a power-fail detection circuit, start booster circuit then, the voltage that described back-up power apparatus is provided is raised to the value that described fan can be gone up work, and by again will be for the dump of described fan power supply after delay circuit time-delay a period of time or exhaust up to the electric energy of back-up power apparatus to the fan power supply always.
5, a kind of device powers down of avoiding as claimed in claim 2 causes overheated control method for fan, it is characterized in that, described charging circuit is to adopt the mode of constant voltage/constant current charging that battery is charged, and keeps battery capacity.
6, a kind of device powers down of avoiding as claimed in claim 4 causes overheated control method for fan, it is characterized in that, described booster circuit is by the high-frequency power electronic technology, the low pressure that back-up source is provided converts the high pressure that fan can drive to, and guaranteeing can drive fan work by battery; Delay circuit is after input power supply power-fail signal occurring, delays time automatically, reaches to turn-off booster circuit behind the delay time and finally turn-off fan.
7, a kind of device powers down of avoiding as claimed in claim 1 causes overheated control method for fan, it is characterized in that, adopts a spacer assembly, prevents that described back-up power apparatus discharges to described fan when described input power supply normal power supply.
8, a kind of device powers down of avoiding causes overheated fan control device, comprising: fan, be the input power supply that the equipment that adopts the fan heat radiation is powered, described fan and described input power supply are coupled; It is characterized in that this device also comprises: back-up source, power-fail detection circuit, fan control circuitry;
Described fan is coupled by described fan control circuitry and described back-up source; Described power-fail detection circuit is coupled with described input power supply and described fan control circuitry respectively;
Described power-fail detection circuit is monitored described input power supply, when monitoring described input power supply power-fail, transmit an input power supply power-fail signal and give described fan control circuitry, described fan control circuitry is described fan power supply with described back-up source, makes described fan endure behind described input power supply power-fail.
9, a kind of device powers down of avoiding as claimed in claim 8 causes overheated fan control device, it is characterized in that described back-up power apparatus comprises: rechargeable battery and coupled charging circuit.
10, a kind of device powers down of avoiding as claimed in claim 8 causes overheated fan control device, it is characterized in that described back-up power apparatus comprises: battery or electric capacity.
11, a kind of device powers down of avoiding as claimed in claim 8 causes overheated fan control device, it is characterized in that described fan is a DC fan.
12, a kind of device powers down of avoiding as claimed in claim 9 causes overheated fan control device, it is characterized in that, described charging circuit is to adopt the mode of constant voltage/constant current charging that battery is charged, and keeps battery capacity.
13, cause overheated fan control device as the described a kind of device powers down of avoiding of the arbitrary claim of claim 8-10, it is characterized in that, this device also comprises and boosting/delay circuit; Described booster circuit is by the high-frequency power electronic technology, converts the low pressure of back-up power apparatus to high pressure that fan can drive, and guaranteeing can drive fan work by back-up power apparatus; Delay circuit is after input power supply power-fail signal occurring, delays time automatically, reaches to turn-off booster circuit behind the delay time and finally turn-off fan.
14, a kind of device powers down of avoiding as claimed in claim 13 causes overheated fan control device, it is characterized in that, described power-fail detection circuit: when the input power cut-off, detect by power-fail detection circuit, provide an input power supply power-fail signal to boosting/delay circuit under the power-down conditions, boost/Rule of judgment of delay circuit as startup.
15, a kind of device powers down of avoiding as claimed in claim 8 causes overheated fan control device, it is characterized in that, this device also comprises: spacer assembly, this spacer assembly prevent that described back-up source discharges to described fan when described input power supply normal power supply.
16, a kind of device powers down of avoiding as claimed in claim 13 causes overheated fan control device, it is characterized in that the delay time of described delay circuit can preestablish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410074588 CN1747642A (en) | 2004-09-07 | 2004-09-07 | Control and controller of fan for preventing apparatus from overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410074588 CN1747642A (en) | 2004-09-07 | 2004-09-07 | Control and controller of fan for preventing apparatus from overheating |
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| Publication Number | Publication Date |
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| CN1747642A true CN1747642A (en) | 2006-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410074588 Pending CN1747642A (en) | 2004-09-07 | 2004-09-07 | Control and controller of fan for preventing apparatus from overheating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811512A (en) * | 2016-04-27 | 2016-07-27 | 珠海格力电器股份有限公司 | Power supply method and device for cooling fan of household appliance and household appliance |
| CN109510959A (en) * | 2018-10-29 | 2019-03-22 | 深圳康佳电子科技有限公司 | A kind of control method and control system for preventing laser television from overheating |
| CN111782011A (en) * | 2020-07-06 | 2020-10-16 | 孙志刚 | Power-off protection device for storage server mainboard |
| CN116658450A (en) * | 2023-07-26 | 2023-08-29 | 苏州浪潮智能科技有限公司 | Fan control system, server system, fan control method and device |
-
2004
- 2004-09-07 CN CN 200410074588 patent/CN1747642A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811512A (en) * | 2016-04-27 | 2016-07-27 | 珠海格力电器股份有限公司 | Power supply method and device for cooling fan of household appliance and household appliance |
| CN109510959A (en) * | 2018-10-29 | 2019-03-22 | 深圳康佳电子科技有限公司 | A kind of control method and control system for preventing laser television from overheating |
| CN109510959B (en) * | 2018-10-29 | 2021-06-01 | 深圳康佳电子科技有限公司 | Control method and control system for preventing laser television from overheating |
| CN111782011A (en) * | 2020-07-06 | 2020-10-16 | 孙志刚 | Power-off protection device for storage server mainboard |
| CN116658450A (en) * | 2023-07-26 | 2023-08-29 | 苏州浪潮智能科技有限公司 | Fan control system, server system, fan control method and device |
| CN116658450B (en) * | 2023-07-26 | 2023-11-03 | 苏州浪潮智能科技有限公司 | Fan control system, server system, fan control method and device |
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