CN1176415C - Computer overheat protector - Google Patents
Computer overheat protector Download PDFInfo
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- CN1176415C CN1176415C CNB011042591A CN01104259A CN1176415C CN 1176415 C CN1176415 C CN 1176415C CN B011042591 A CNB011042591 A CN B011042591A CN 01104259 A CN01104259 A CN 01104259A CN 1176415 C CN1176415 C CN 1176415C
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- radiator fan
- computer
- power supply
- detecting
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Abstract
The present invention provides a computer overheating protection device which is used for detecting the normal operation of a heat radiating fan to cause a computer, particularly a core device of a central processing unit, not to be broken by over temperature caused by the aberration of the heat radiating fan. Particularly, the present invention can detect the abnormal operation of the heat radiating fan when the whole computer system is started, which can avoid high-temperature burnout caused by instant heavy current when the computer is started; the present invention uses a detection result to control the opening of a system power supply to perform a protection function. In addition, after the computer system is started, by detecting the rotation speed of the heat radiating fan, the present invention prompts alarm to a user to close the computer system when the rotation speed is low, which can further avoid computer damage caused by the over temperature.
Description
Technical field
The present invention relates to a kind of overheat protector, particularly relate to a kind of computer overheat protector.
Background technology
In recent years, along with the development of computer technology, continually develop out various high performance computers.Wherein, the component devices CPU (central processing unit) of the heat radiation of each component devices, particularly core in the computer system, along with the quick raising of arithmetic speed and the increase of power consumption, it is extremely important and subject under discussion to be solved arranged to become industry.
Particularly, some CPU (central processing unit), (the AdvancedMicro Devices of advanced micro devices company for example, AMD) K7 type CPU (central processing unit), start shooting moment the user, do not carry out to ROM-BIOS (Basic Input Output System, BIOS) and even before the system power supply of whole computer system starts as yet, used a large amount of electric currents, make instantaneous temperature too high, cause burning of CPU (central processing unit) easily, not only make the user lose CPU (central processing unit) the most expensive in the computer system, more and waste many repairing times.
If the radiator fan of CPU (central processing unit) is again because device is improper, for example do not install appropriate, and can't when system power supply starts, move at once so that heat radiation to be provided, then CPU (central processing unit) can be burnt between of short duration one, two second, and this also is the main cause that present above-mentioned some CPU (central processing unit) is burnt.The user often after the start, just burn and cause shutting down by CPU (central processing unit).
Moreover, when system power supply starts, in the middle of the process of computer system normal operation, if the radiator fan of CPU (central processing unit) causes rotating speed to reduce because of aging decay, also can reduce radiating effect, cause high temperature to damage CPU (central processing unit), the particularly general radiator fan life-span may be low far beyond the life-span of CPU (central processing unit), and the easier high temperature of CPU (central processing unit) that causes is damaged.
In various prior aries; the TaiWan, China patent announcement discloses a kind of CPU overheat protector arrangement for detecting number No. 383879; temperature by sensing element detecting CPU (central processing unit); when temperature is too high,, reaches cooling and avoiding the purpose of burning to reduce the mode of CPU (central processing unit) frequency of operation or prompting warning.The TaiWan, China patent announcement discloses a kind of CPU of protection damages CPU because of superpotential and excess current device number No. 391535; be supplied to the voltage of CPU by the detecting power supply unit; whether there is the phenomenon of superpotential or excess current to take place, to protect CPU not to be subjected to the impact of superpotential or excess current and to damage.The TaiWan, China patent announcement then discloses the overheated automatic safety device of a kind of PENTIUM-II CPU number No. 362787, and by the temperature-sensing device that can detect the CPU radiating fin temperature, detecting temperature of CPU is to prevent overheated damage.
Above-mentioned prior art prevents that CPU (central processing unit) from crossing the mode of cause thermal damage; all be after the whole startup of computer system; just system power supply starts to supply after the whole computer system running; whether the temperature by the detecting CPU (central processing unit) is overheated; perhaps whether there is the Productivity of superpotential or excess current to give birth to, further controls with the protection CPU (central processing unit).Yet, it also can't be started shooting moment at the user, and just ROM-BIOS does not start, even before system power supply do not start, immediately detect radiator fan and whether install appropriately, prevent that CPU (central processing unit) is overheated even burn in start moment so that normal radiating effect can be provided.Moreover prior art can not be detected in the computer system operation, and radiating fan rotation speed reduces and gives warning in advance so that control and prevent overheated even burn.
Summary of the invention
Fundamental purpose of the present invention is, overcome the existing in prior technology defective, and provide a kind of computer overheat protector of new structure, generally speaking, in the middle of a computer system, except the radiator fan of CPU (central processing unit), the radiator fan that more comprises computer motherboard, in order to the heat radiation of computer motherboard to be provided, and the radiator fan of power supply unit, though the mistake cause thermal damage before the start is unlikely to quick as CPU (central processing unit), if but can provide an arrangement for detecting in advance that start is preceding or rotating speed reduces at radiator fan, when the appropriate rate and the applicability that help to guarantee whole computer system.
The objective of the invention is to realize by following technical scheme.Computer overheat protector according to the present invention's proposition, a kind of computer overheat protector, whether correctly install in order to a radiator fan of detecting a component devices in the computer system, and unlatching by a power supply in this computer system of control, make it possible to when start, prevent that this component devices is overheated to protect this component devices; This computer overheat protector comprises: a detecting and a control device, and it connects this radiator fan and this power supply, further comprises: a radiator fan connector can produce a State Control signal; One transistor is connected with the radiator fan connector, receives this controlling signal; One system's control wafer is connected with this transistor, sends another controlling signal; Another transistor is connected with the system control wafer, and another controlling signal of sending according to system's control wafer determines whether conducting; The ATX power-supply controller of electric is connected with this another transistor, produces signal PS_ON, determines whether to start; Whether this detecting and control device are the State Control signal by the potential difference (PD) of detecting this radiator fan and contacting with the fan connector, correctly be installed in this computer system to detect this radiator fan, and the information that sends is to control the unlatching of this power supply.
Purpose of the present invention can also further realize by following technical measures.
Described component devices is a CPU (central processing unit), and this radiator fan is a CPU (central processing unit) radiator fan.
Described component devices is meant a computer motherboard, and this radiator fan is a computer system radiator fan.
Described component devices is a power supply unit, and this radiator fan is a power supply unit radiator fan.
Described detecting and control device more comprise an amplifier, are connected in after the radiator fan connector, to amplify this potential difference (PD).
Described detecting and control device receive a signal of representing this potential difference (PD), and carry out one with a signal of start/off-mode of representing this computer system " with " logical operation, operation result obtains a controlling signal, delivers to this power supply to control the unlatching of this power supply.
Described detecting and control device can also be the State Control signal with the rotating speed of described radiator fan, in order to detecting the rotating speed of this radiator fan, and control closing of this power supply, make to cross when hanging down when the rotating speed of this radiator fan, allow to close this power supply.
Described detecting and control device are to detect the rotating speed of this radiator fan by the potential pulse frequency of detecting this radiator fan.
The present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known; a kind of computer overheat protector of the present invention; it can be used for detecting whether normal operation of radiator fan; to guarantee computer, particularly the core apparatus CPU (central processing unit) can not cause excess temperature to be damaged because of the not normal of radiator fan; particularly when starting, can detect and obtain in whole computer system; the high temperature that instantaneous large-current caused when avoiding starting shooting burns, and by detecting the unlatching that the result comes the control system power supply, to reach the effect of protection.Moreover after computer system boot-strap, by the rotating speed of detecting radiator fan, with when rotating speed is too low, the prompting poster is selected to close computer system for the user, the damage of further avoiding computer overheat and being caused.
Description of drawings
Fig. 1 is a kind of computer overheat protector of the present invention.
Fig. 2 is radiator fan slot pin and signal thereof.
Fig. 3 is that the signal of radiator fan is amplified through an amplifier.
Fig. 4 is the computer overheat protector of preferred embodiment of the present invention.
Fig. 5 is the signal of System on chip.
Symbol description among the figure
1 computer system, 2 component devices
3 radiator fans, 4 power supplys
5 detectings and control Line road 10 computer overheat protectors
Diffusing connector 31 amplifiers of 21 heat radiation wind
41ATX power supply unit 51 System on chip
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the computer overheat protector that foundation the present invention proposes, its concrete structure, feature and effect thereof, describe in detail as after.
At first, see also shown in Figure 1ly, it is a kind of computer overheat protector 10 of the present invention.A kind of computer overheat protector 10 of the present invention comprises a detecting and a control device 5, and it is to be connected to the radiator fan 3 of a component devices 2 in the computer system 1 and to be connected to a power supply 4.
Wherein, this computer system 1 mainly is meant the main frame of PC or servomechanism etc., generally carries motherboard, CPU (central processing unit), memory body and power supply etc. in it.The present invention can be applied in the radiator fan in the general computer system, therefore, radiator fan 3 is to be selected from, but be not limited to CPU (central processing unit) radiator fan, computer system radiator fan and power supply unit radiator fan etc., its 2 of corresponding component devices is respectively CPU (central processing unit), computer motherboard and power supply unit.
This power supply 4 can be the relevant power supply of open and close with computer system 1 or component devices 2, the power subsystem of system power supply or control individual groups apparatus for converting 2 for example, and more common and widely known person is the ATX power supply unit.By the open and close of control power supply 4, can when having the anxiety of excess temperature, computer avoid the unlatching or the powered-down 4 of power supply 4 immediately, reach purpose of the present invention.
Whether detecting and control device 5 mainly are can detect radiator fan 3 correctly to install, and it is illustrated in the preferred embodiment of the present invention; Whether the rotating speed of perhaps detecting fan 3 is too low, and it is illustrated in another preferred embodiment of the present invention; And the result that will detect fetches the open and close in order to control power supply 4.
In this preferred embodiment, when radiator fan 3 was not correctly installed, detecting and control device 5 are sent a signal made power supply 4 to open; On the other hand, when radiator fan 3 is correct when installing, detecting and 5 of control device are sent a signal, make power supply 4 be able to normal unlatching, and then start whole computer system 1 and run well.
In another preferred embodiment, when the rotating speed of radiator fan 3 is too low, detecting and control device 5 are sent a signal, make and in BIOS or operating system, on the operation screen, show a prompting poster, for example " your system fan has been damaged soon; ask you to change fan to guarantee that System Operation is normal " and " shutdown system whether? " option, select whether to close computer for the user.
Then; see also Fig. 2 to shown in Figure 5; detailed description is according to the computer overheat protective device 10 of a preferred embodiment of the present invention; whether it is correctly to install when starting shooting in order to detecting radiator fan 3, avoids by this correctly not installing so that the excess temperature that radiating effect caused of failing to bring into normal play damages because of radiator fan 3.
See also shown in Figure 2ly, when plugging, represent radiator fan connector 21, generally be referred to as a signal SENCPUFAN of the PIN 1 slot pin of fan-slot, can present high potential state when CPU (central processing unit) radiator fan (scheming not shown).Then, this signal SENCPUFAN is amplified through as shown in Figure 3 amplifier 31, become a signal FANPS.
Then, as shown in Figure 4, signal FANPS is connected to a transistor Q77, makes transistor Q77 present conducting state; If user's this moment presses system switching and starts shooting, then, system's control wafer 51 as shown in Figure 5 will be sent one a signal-SUSB who presents noble potential, make a transistor Q7 who connects this signal-SUSB also present conducting state, and then make the one signal-PS_ON that connects a transistor Q7 and an ATX power supply unit 41 present low-potential state, by this, make ATX power supply unit 41 start.
Otherwise when the CPU (central processing unit) radiator fan was not plugged, signal SENCPUFAN can present low-potential state.Signal SENCPUFAN sends into controlling signal FANPS transistor Q77 as shown in Figure 4 again through after amplifier 31 amplifications the becoming signal FANPS as shown in Figure 3, makes transistor Q77 present closed condition; If user's this moment presses system switching and starts shooting, then, signal-SUSB that system's control wafer 51 is as shown in Figure 5 sent is drawn high and is presented high potential state, makes transistor Q7 also present conducting state.Yet, because transistor Q77 presents closed condition, make signal-PS_ON present high potential state, therefore, make ATX power supply unit 41 normally to start, and then the protection computer system is not burnt out.
In another preferred embodiment of the present invention, when system boot was finished, system's control wafer 51 of a PIN 3 slot pin by being connected to radiator fan connector 21 was detected rotation speed of the fan.
System on chip 51, promptly general alleged south bridge comprises a detecting and a control device, it connects this radiator fan, in order to detect the rotating speed of this radiator fan.This detecting and control device also may be that design is in the I/O wafer.Fig. 2 is connected PIN 3 and System on chip 51 and represents the signal CPUFAN of rotation speed of the fan with Fig. 5 difference illustration.Signal CPUFAN is a pulse signal, and pulsed frequency is represented the rotating speed of fan, and therefore, whether the rotating speed that System on chip 51 is detected radiator fan 3 is too low.
What the personage was known by inference easily in the general skill is, whether the SYSFAN that signal CPUFAN also can the representative system rotation speed of the fan replaces it, can run well by the detecting system fan by this.Moreover, in order to reach the whether purpose of normal operation of detecting radiator fan 3, except whether the rotating speed of detecting radiator fan 3 is too low, also can otherwise designed the rate of decay of detecting rotating speed, when rate of decay is too high, represent the performance of radiator fan 3 not good, soon can't reach normal function.
When rotation speed of the fan is too low, expression radiator fan 3 is impaired near distress condition, so the time we use the skill of BIOS, just BIOS decides according to signal CPUFAN, on screen, occur poster " your system fan has been damaged soon; ask you to change fan to guarantee that System Operation is normal " and " shutdown system whether? " option, allow the user can select to want shutdown system, carry out fan and change.
When the user selects shutdown system, then System on chip 51 as shown in Figure 5 can drag down signal-SUSB, this is identical with general existing shutdown programm, make signal-SUSB present electronegative potential, and the signal-SUSB of this electronegative potential is connected to transistor Q7, as shown in Figure 4, make transistor Q7 present closed condition, cause signal-PS_ON to present high potential state, further make ATX power supply unit 41 close, change so that carry out fan for the user.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1. computer overheat protector, whether correctly install in order to a radiator fan of detecting a component devices in the computer system, and, make it possible to when start, prevent that this component devices is overheated to protect this component devices by the unlatching of a power supply in this computer system of control; It is characterized in that this computer overheat protector comprises:
One detecting and control device, it connects this radiator fan and this power supply, further comprises:
One radiator fan connector can produce a State Control signal;
One transistor is connected with the radiator fan connector, receives this controlling signal;
One system's control wafer is connected with this transistor, sends another controlling signal;
Another transistor is connected with the system control wafer, and another controlling signal of sending according to system's control wafer determines whether conducting;
The ATX power-supply controller of electric is connected with this another transistor, produces signal PS_ON, determines whether to start;
Whether this detecting and control device are the State Control signal by the potential difference (PD) of detecting this radiator fan and contacting with the fan connector, correctly be installed in this computer system to detect this radiator fan, and the information that sends is to control the unlatching of this power supply.
2. computer overheat protector according to claim 1 is characterized in that, described component devices is a CPU (central processing unit), and this radiator fan is a CPU (central processing unit) radiator fan.
3. computer overheat protector according to claim 1 is characterized in that described component devices is meant a computer motherboard, and this radiator fan is a computer system radiator fan.
4. computer overheat protector according to claim 1 is characterized in that, described component devices is a power supply unit, and this radiator fan is a power supply unit radiator fan.
5. computer overheat protector according to claim 1 is characterized in that described detecting and control device more comprise an amplifier, is connected in after the radiator fan connector, to amplify this potential difference (PD).
6. computer overheat protector according to claim 1, it is characterized in that, described detecting and control device receive a signal of representing this potential difference (PD), and carry out one with a signal of start/off-mode of representing this computer system " with " logical operation, operation result obtains a controlling signal, delivers to this power supply to control the unlatching of this power supply.
7. computer overheat protector according to claim 1, it is characterized in that, described detecting and control device can also be the State Control signal with the rotating speed of described radiator fan, in order to detect the rotating speed of this radiator fan, and control closing of this power supply, make and to cross when hanging down, allow to close this power supply when the rotating speed of this radiator fan.
8. computer overheat protector according to claim 7 is characterized in that, described detecting and control device are to detect the rotating speed of this radiator fan by the potential pulse frequency of detecting this radiator fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042591A CN1176415C (en) | 2001-02-23 | 2001-02-23 | Computer overheat protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042591A CN1176415C (en) | 2001-02-23 | 2001-02-23 | Computer overheat protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371037A CN1371037A (en) | 2002-09-25 |
| CN1176415C true CN1176415C (en) | 2004-11-17 |
Family
ID=4653792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011042591A Expired - Lifetime CN1176415C (en) | 2001-02-23 | 2001-02-23 | Computer overheat protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1176415C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952848B (en) * | 2005-10-21 | 2010-05-12 | 联想(北京)有限公司 | A control apparatus and method for starting fan |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100459352C (en) * | 2004-11-25 | 2009-02-04 | 上海环达计算机科技有限公司 | Overheat protector for computer system |
| CN101587370B (en) * | 2008-05-23 | 2011-03-30 | 鸿富锦精密工业（深圳）有限公司 | Auxiliary control circuit for booting computer |
| CN102955718B (en) * | 2011-08-17 | 2016-02-24 | 赛恩倍吉科技顾问（深圳）有限公司 | Server protection system |
| JP5994498B2 (en) * | 2012-09-07 | 2016-09-21 | 富士通株式会社 | Power supply control system and power supply control method |
| CN111736641B (en) * | 2019-03-25 | 2021-08-27 | 鸿富锦精密电子(天津)有限公司 | Over-temperature protection circuit applied to AMD platform |
-
2001
- 2001-02-23 CN CNB011042591A patent/CN1176415C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952848B (en) * | 2005-10-21 | 2010-05-12 | 联想(北京)有限公司 | A control apparatus and method for starting fan |
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| Publication number | Publication date |
|---|---|
| CN1371037A (en) | 2002-09-25 |
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Granted publication date: 20041117 |