CN101741067A - Overheating protection device and method of electronic device - Google Patents
Overheating protection device and method of electronic device Download PDFInfo
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- CN101741067A CN101741067A CN200810181616A CN200810181616A CN101741067A CN 101741067 A CN101741067 A CN 101741067A CN 200810181616 A CN200810181616 A CN 200810181616A CN 200810181616 A CN200810181616 A CN 200810181616A CN 101741067 A CN101741067 A CN 101741067A
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Abstract
The invention provides an overheating protection device and method of an electronic device. The method of the invention comprises the following steps: testing the temperature value and temperature variation slope of the electronic device; if the temperature variation slope is more than a preset slope or the temperature value is more than a temperature boundary value during a preset time after starting the electronic device, stopping the operation of the electronic device. By adopting the method of the invention, the temperature anomaly of the electronic device can be found early so as to effectively prevent the overheating of the electronic device.
Description
Technical field
The invention relates to a kind of overtemperature protection system and method for electronic installation, and particularly relevant for kind of the method for excessive heating protection of electronic installation temperature monitoring.
Background technology
Progress along with integrated circuit (IC) design and manufacture of semiconductor, the speed of microprocessor processes data is also more and more faster, but complicated along with integrated circuit, the caloric value of microprocessor is also increasing, if microprocessor can influence its operating efficiency and reduce its useful life overheated, in the time of seriously even can cause computer to work as machine.Take place for fear of said circumstances; the solar heat protection mechanism of general present microprocessor only designs a temperature boundary value; when the temperature rising reaches boundary value; just reduce operating frequency to avoid microprocessor overheated; though this mechanism provides a method that the prevention microprocessor is overheated; but can't find the temperature anomaly situation of microprocessor ahead of time, be not an effectively protection mechanism therefore.
Summary of the invention
In view of this, the invention provides a kind of method for excessive heating protection that is applicable to electronic installation, carry out overtemperature protection, can take place to find electronic installation temperature anomaly ahead of time before overheated, prevent that effectively overheated situation from taking place at electronic installation according to the variations in temperature slope.
The invention provides a kind of overtemperature protection system that is applicable to electronic installation, carry out overtemperature protection, can find the temperature anomaly of electronic installation ahead of time according to the variations in temperature slope, overheated to prevent electronic installation.
Hold above-mentionedly, the present invention proposes a kind of method for excessive heating protection that is applicable to electronic installation, comprises the following steps: to detect the temperature value and the variations in temperature slope of above-mentioned electronic installation.Wherein, the variations in temperature slope is the variable quantity of the corresponding time of temperature of electronic installation.In the Preset Time after the start of above-mentioned electronic installation, if said temperature change slope greater than default slope or said temperature value greater than the temperature boundary value, above-mentioned electronic installation is decommissioned.
In an embodiment of the present invention, wherein behind above-mentioned Preset Time, greater than the said temperature boundary value, then above-mentioned controller decommissions above-mentioned electronic installation as if detected said temperature value.
In an embodiment of the present invention, above-mentioned method for excessive heating protection more comprises: behind above-mentioned Preset Time, if detected said temperature value greater than the said temperature boundary value, then makes above-mentioned electronic installation decommission.
In an embodiment of the present invention, above-mentioned method for excessive heating protection more comprises: behind above-mentioned Preset Time, if said temperature change slope greater than default slope or said temperature value greater than the temperature boundary value, above-mentioned electronic installation is decommissioned.
In an embodiment of the present invention, wherein in said temperature value that detects above-mentioned processor and said temperature change the step of slope, more comprise: every interval reach for one sample time the said temperature value of above-mentioned processor to calculate said temperature variation slope.
In an embodiment of the present invention, wherein the variations in temperature slope is the variable quantity of the corresponding time of temperature of the microprocessor in the electronic installation, or the variable quantity of corresponding time of an ambient temperature, or is the casing temperature variable quantity of corresponding time.
From another viewpoint, the present invention proposes a kind of overtemperature protection system that is applicable to electronic installation again, comprises hot end instrument and controller.Wherein, hot end instrument is in order to detect the temperature value of above-mentioned electronic installation.Controller is coupled to above-mentioned hot end instrument and above-mentioned electronic installation, calculates the variations in temperature slope of above-mentioned electronic installation according to detected said temperature value.Wherein, in the Preset Time after the start of above-mentioned electronic installation, if said temperature change slope greater than default slope or said temperature value greater than the temperature boundary value, then above-mentioned controller decommissions above-mentioned electronic installation.
In an embodiment of the present invention, wherein behind above-mentioned Preset Time, greater than the said temperature boundary value, then above-mentioned controller decommissions above-mentioned electronic installation as if detected said temperature value.
In an embodiment of the present invention, wherein behind above-mentioned Preset Time, if said temperature change slope greater than default slope or said temperature value greater than the temperature boundary value, then above-mentioned controller decommissions above-mentioned electronic installation.
In an embodiment of the present invention, the every interval of wherein above-mentioned controller reaches to such an extent that the said temperature value of above-mentioned processor changes slope to calculate said temperature one sample time.
In an embodiment of the present invention, wherein above-mentioned controller is an embedded controller (Embeddedcontrollers) or a baseboard management controller (board management controller).
Comprehensively above-mentioned, the present invention utilizes the variation situation of temperature boundary value and variations in temperature slope to be used as the overtemperature protection mechanism of electronic installation, can find the temperature anomaly of electronic installation effectively ahead of time, prevents that overheated situation from taking place.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the schematic diagram of overtemperature protection system of the electronic installation of the embodiment of the invention.
Fig. 2 is the method for excessive heating protection flow chart of electronic installation according to a second embodiment of the present invention.
Fig. 3 is the method for excessive heating protection flow chart of the electronic installation of a third embodiment in accordance with the invention.
The main element symbol description:
100: overtemperature protection system
110: hot end instrument
120: controller
130: electronic installation
S210～S250, S310～S360: flow chart step
Embodiment
First embodiment
Fig. 1 is the overtemperature protection system schematic diagram of the electronic installation of the embodiment of the invention.Please refer to Fig. 1; this overtemperature protection system 100 comprises: hot end instrument 110 and controller 120; its middle controller 120 can be embedded controller (Embedded Controller, EC) or baseboard management controller (BaseboardManagement Controller, BMC).Hot end instrument 110 can detection. electronics 130 temperature value.On the other hand, controller 120 couples hot end instrument 110, and it can and calculate the variations in temperature slope of electronic installation 130 according to the measured temperature value of hot end instrument 110, and judges whether to make electronic installation 130 to decommission.Wherein, the variations in temperature slope can be obtained by the variable quantity that calculates the measured corresponding time of temperature value of hot end instrument 110.
In addition, in Fig. 1, overtemperature protection system 100 can be arranged among the electronic installation 130, becomes the part of electronic installation 130.Hot end instrument 110 measured temperature values can be the various thermals source that influence electronic installation 130 runnings, for example ambient temperature in the temperature of microprocessor, the electronic installation 130 or the casing temperature in the electronic installation 130 or the like.Therefore, also can be different sources by the hot end instrument 110 measured variations in temperature slopes that temperature value calculated.
In one section Preset Time after electronic installation 130 starts (for example 10 minutes), reach one period sample time of controller 120 every intervals (for example per 3 seconds once) the temperature value of the measured electronic installation 130 of hot end instrument 110, and calculate the variations in temperature slope.If during greater than the temperature boundary value, then controller 120 can make electronic installation 130 decommission to this variations in temperature slope greater than the default slope that sets in advance or obtained temperature value.After electronic installation 130 had been started shooting a Preset Time, if the temperature value that records of hot end instrument 110 is greater than the temperature boundary value, then controller 120 still can make electronic installation 130 decommission.
In addition, after start surpasses Preset Time, also can keep identical Rule of judgment, just work as the variations in temperature slope value that calculated greater than default slope or detected temperature value during greater than the temperature boundary value, controller 120 can make electronic installation 130 decommission equally.It should be noted that interval length sample time of Preset Time length after the above-mentioned start and controller 120 and unrestricted, can be according to the required setting of in fact using of situation, to reach best overtemperature protection mode.In addition, the mode that electronic installation 130 is decommissioned can be that the microprocessor or the power-supply system of closing in the closing electronic device 130 reaches, but not exceed in this way in practical application.
Though in the present embodiment, when detecting temperature anomaly, controller 120 can make electronic installation 130 decommission to make temperature retrieval arrive purpose in the normal range (NR) to reach.But in practical application, can select other modes, for example can strengthen the heat dissipation of cooling system, can also reach and make temperature retrieval arrive purpose in the normal range (NR).Therefore, the present invention is after detecting the situation of temperature anomaly, and the action of being taked is not so that electronic installation 130 decommissions exceeds.
Second embodiment
Comprehensively above-mentioned; present embodiment can be summarized a kind of method for excessive heating protection of electronic installation; as shown in Figure 2; Fig. 2 is the method for excessive heating protection flow chart according to the electronic installation of second embodiment; its step comprises: at first; in step S210, the temperature value of detection. electronics is also calculated its variations in temperature slope.For instance, can detect the temperature value of microprocessor, the ambient temperature value in the electronic installation or the casing temperature value in the electronic installation or the like, and then calculate the variations in temperature slope.Wherein, the variations in temperature slope can be obtained by the variable quantity of corresponding time of accounting temperature value.
Then, in step S220, judge whether electronic installation starts shooting above one section Preset Time.If not, judge then that then whether the temperature value of electronic installation is greater than temperature boundary value (step S230).If then make electronic installation decommission (step S250); If not, then get back to step S210, continue the temperature value of detection. electronics and calculate its variations in temperature slope.On the contrary, if start has surpassed Preset Time (just indicated among the step S220 " be "),, judge that whether the variations in temperature slope is greater than default slope then as among the step S240.If then make electronic installation decommission (step S250); If not, judge then that then whether the temperature value of electronic installation is greater than temperature boundary value (step S230).If then make electronic installation decommission (step S250); If not, then get back to step S210, continue the temperature value of detection. electronics and calculate its variations in temperature slope.Wherein, method and the indefinite that electronic installation is decommissioned.For instance, microprocessor in the closing electronic device or the power-supply system in the electronic installation can be closed, all the purpose that electronic installation is decommissioned can be reached.
In addition, in practical application, arrive in the normal range (NR), also can select additive method in order to make temperature retrieval.For example can strengthen the heat dissipation of cooling system.Therefore, the present invention is after detecting the situation of temperature anomaly, and the action of being taked is not so that electronic installation decommissions exceeds.
It should be noted that, step S220 and step S230 are not limited to present position, both sequencings can be exchanged, that is to say, can judge earlier that whether temperature value is greater than temperature boundary value (step S230), judge whether again that then start has surpassed Preset Time (step S220), and then judge that whether the variations in temperature slope is greater than default slope (step S240).In addition, in step S210, calculate the part of variations in temperature slope, also can judge whether to cross start by the time, might not want in step S210, to calculate earlier the variations in temperature slope above (step S220) behind Preset Time row calculating again.The present technique field has knows that usually the knowledgeable after via exposure of the present invention, should know the step of its numerical analysis easily by inference and can do suitable adjustment, and it is all among the category of this enforcement.
The 3rd embodiment
Fig. 3 is the method for excessive heating protection flow chart according to the electronic installation of third embodiment of the invention, please refer to Fig. 3, at first, in step S310, the temperature value of detection. electronics.Then, in step S320, judge that whether the electronic installation temperature value is greater than the temperature boundary value.If then make electronic installation decommission (step S330); If not, then enter step S340, the Preset Time after having judged whether to start shooting 10 minutes.If, then get back to step S310, continue the temperature value of detection. electronics; If do not surpass 10 minutes as yet, the variations in temperature slope was calculated in 3 seconds in then every interval, shown in step 350.Then, judge that whether the variations in temperature slope is greater than default slope.If then make electronic installation decommission (step S330); If not, then get back to step S310, continue the temperature value of detection. electronics.
In sum, the invention provides a kind of method for excessive heating protection that is applicable to electronic installation.Monitor the intensification situation of electronic installation via temperature boundary value and two kinds of testing mechanisms of variations in temperature slope, can take place to find electronic installation temperature anomaly ahead of time before overheated, prevent that effectively overheated situation from taking place at electronic installation.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (10)
1. method for excessive heating protection that is applicable to electronic installation comprises:
Detect a temperature value and a variations in temperature slope of this electronic installation, the variable quantity of corresponding time of the temperature that this variations in temperature slope is this electronic installation; And
In the Preset Time after the start of this electronic installation, if this variations in temperature slope greater than a default slope or this temperature value greater than a temperature boundary value, this electronic installation is decommissioned.
2. method for excessive heating protection as claimed in claim 1 is characterized in that, more comprises:
Behind this Preset Time, if detected this temperature value greater than this temperature boundary value, then makes this electronic installation decommission.
3. method for excessive heating protection as claimed in claim 1 is characterized in that, more comprises:
Behind this Preset Time, if this variations in temperature slope greater than this default slope or this temperature value greater than this temperature boundary value, this electronic installation is decommissioned.
4. method for excessive heating protection as claimed in claim 1 is characterized in that, more comprises in the step of this temperature value that detects this electronic installation and this variations in temperature slope:
Every interval reach for one sample time this temperature value of this electronic installation to calculate this variations in temperature slope.
5. method for excessive heating protection as claimed in claim 1 is characterized in that, more comprises at this temperature value that detects this electronic installation and the step of this variations in temperature slope:
Variable quantity according to the corresponding time of the temperature of the microprocessor in this electronic installation is obtained this variations in temperature slope.
6. overtemperature protection system that is applicable to electronic installation comprises:
One hot end instrument is in order to detect a temperature value of this electronic installation; And
One controller is coupled to this hot end instrument, and this controller calculates a variations in temperature slope of this electronic installation according to detected this temperature value of this hot end instrument, the variable quantity of corresponding time of the temperature that this variations in temperature slope is this electronic installation;
Wherein, in the Preset Time after the start of this electronic installation, if this variations in temperature slope greater than a default slope or this temperature value greater than a temperature boundary value, then this controller decommissions this electronic installation.
7. overtemperature protection system as claimed in claim 6 is characterized in that, behind this Preset Time, greater than this temperature boundary value, then this controller decommissions this electronic installation as if detected this temperature value.
8. overtemperature protection system as claimed in claim 6 is characterized in that, the every interval of this controller reach for one sample time this temperature value of this electronic installation to calculate this variations in temperature slope.
9. overtemperature protection system as claimed in claim 6 is characterized in that, this controller is an embedded controller or a baseboard management controller.
10. overtemperature protection system as claimed in claim 8 is characterized in that, this variations in temperature slope is the variable quantity of the corresponding time of temperature of the microprocessor in this electronic installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181616A CN101741067A (en) | 2008-11-27 | 2008-11-27 | Overheating protection device and method of electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181616A CN101741067A (en) | 2008-11-27 | 2008-11-27 | Overheating protection device and method of electronic device |
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| Publication Number | Publication Date |
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| CN101741067A true CN101741067A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810181616A Pending CN101741067A (en) | 2008-11-27 | 2008-11-27 | Overheating protection device and method of electronic device |
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| CN (1) | CN101741067A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780586A (en) * | 2012-08-07 | 2012-11-14 | 福建星网锐捷网络有限公司 | Overheat protection method and apparatus of network communication equipment |
| CN105302179A (en) * | 2014-06-03 | 2016-02-03 | 联发科技股份有限公司 | Thermal control method and thermal control system |
| CN105490253A (en) * | 2014-10-10 | 2016-04-13 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system, over-temperature protection method and device for power device of electromagnetic heating system |
| CN106788358A (en) * | 2017-01-12 | 2017-05-31 | 佛山市顺德区美的电热电器制造有限公司 | IGBT method for excessive heating protection, device and electric equipment |
| CN110188497A (en) * | 2019-06-04 | 2019-08-30 | 厦门美图之家科技有限公司 | Heating protection method, heating protecting device and face cleaning instrument |
| CN111053437A (en) * | 2019-12-03 | 2020-04-24 | 珠海格力电器股份有限公司 | Silicon controlled rectifier heating control method and device, storage medium and household appliance |
-
2008
- 2008-11-27 CN CN200810181616A patent/CN101741067A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780586A (en) * | 2012-08-07 | 2012-11-14 | 福建星网锐捷网络有限公司 | Overheat protection method and apparatus of network communication equipment |
| CN105302179A (en) * | 2014-06-03 | 2016-02-03 | 联发科技股份有限公司 | Thermal control method and thermal control system |
| CN105302179B (en) * | 2014-06-03 | 2017-10-17 | 联发科技股份有限公司 | Temprature control method and temperature control system |
| CN105490253A (en) * | 2014-10-10 | 2016-04-13 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating system, over-temperature protection method and device for power device of electromagnetic heating system |
| CN105490253B (en) * | 2014-10-10 | 2018-06-08 | 佛山市顺德区美的电热电器制造有限公司 | The excess temperature protection method of electromagnetic heating system and its power device, device |
| CN106788358A (en) * | 2017-01-12 | 2017-05-31 | 佛山市顺德区美的电热电器制造有限公司 | IGBT method for excessive heating protection, device and electric equipment |
| CN110188497A (en) * | 2019-06-04 | 2019-08-30 | 厦门美图之家科技有限公司 | Heating protection method, heating protecting device and face cleaning instrument |
| CN110188497B (en) * | 2019-06-04 | 2022-11-01 | 厦门美图之家科技有限公司 | Heating protection method, heating protection device and face cleaning instrument |
| CN111053437A (en) * | 2019-12-03 | 2020-04-24 | 珠海格力电器股份有限公司 | Silicon controlled rectifier heating control method and device, storage medium and household appliance |
| CN111053437B (en) * | 2019-12-03 | 2023-03-14 | 珠海格力电器股份有限公司 | Silicon controlled rectifier heating control method and device, storage medium and household appliance |
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Open date: 20100616 |