CN104882852A - High-temperature automatic power-off method of household gateway - Google Patents
High-temperature automatic power-off method of household gateway Download PDFInfo
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- CN104882852A CN104882852A CN201510357916.7A CN201510357916A CN104882852A CN 104882852 A CN104882852 A CN 104882852A CN 201510357916 A CN201510357916 A CN 201510357916A CN 104882852 A CN104882852 A CN 104882852A
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Abstract
The invention provides a high-temperature automatic power-off method of a household gateway. The method is characterized in that a temperature management and control system is connected in a household gateway circuit, the temperature of the temperature management and control system is set, when the temperature of a CPU reaches the critical value of a temperature sensor, the power of the circuit is automatically cut off, and the household gateway is prevented from working at a super-high temperature for a long time. The invention provides the automatic power-off method of the household gateway.
Description
Technical field:
The present invention relates to a kind of method of home gateway high temperature auto-breaking.
Background technology:
From strength to strength, the degree of heat is also more and more higher for the function of present home gateway product.Current home gateway product only helps heat radiation by a fin, and some products even fin do not add, so the reliable cooling system of home gateway product neither one.Secondly, the broadband device in most of subscriber household is all long-time unlatching, and be in febrile state for a long time, especially at summer high-temperature environment, temperature more can exceed standard.Home gateway function of surfing the Net is opened rear random placement by some users, and many products are placed on the hidden region of indoor high temperature, touches inflammable articles very easily initiation fire in this case, and hot soak condition also can reduce the useful life of product.
Summary of the invention:
The object of this invention is to provide and a kind of temperature sensor is used in home gateway, ensure that home gateway can the method for home gateway high temperature auto-breaking of trouble free service.
Above-mentioned object is realized by following technical scheme:
A kind of method of home gateway high temperature auto-breaking, temperature managing and control system is connected, the temperature of design temperature managing and control system, when cpu temperature reaches the critical value of temperature sensor in family's gateway circuit, circuit auto-breaking energy, controls the long-time superhigh temperature work of home gateway.
The method of described home gateway high temperature auto-breaking, described temperature managing and control system comprises temperature sensor, triode, resistance, electric capacity, utilize the switching characteristic of triode and the variable resistance of temperature sensor, make high temperature auto-breaking, the base stage of triode connects two resistance, a upper offset resistance and temperature sensor, a below-center offset resistance, draws a pin to connect temperature sensor from CPU.
The method of described home gateway high temperature auto-breaking, when the critical value of cpu temperature lower than temperature sensor, the upper offset resistance of triode and below-center offset different resistive values are comparatively large, and base voltage is high, exceed the turn-on threshold voltage of triode, now equipment normally works.
The method of described home gateway high temperature auto-breaking, when the critical value of cpu temperature higher than temperature sensor, upper offset resistance and the below-center offset resistance of triode are close, after two electric resistance partial pressures, reach the limiting voltage of triode cut-off, triode ends, and electric current is obstructed, realizes auto-breaking.
The method of described home gateway high temperature auto-breaking, triode connects lower bigoted resistance R3, thermistor R1, resistance R2, thermistor R1 connects input current INPUT, and be connected output current OUTPUT between triode with lower bigoted resistance R3, triode is all connected 5V power supply with resistance R2.
Beneficial effect:
1. the present invention increases a temperature managing and control system in the circuit of original home gateway, this system can monitor the temperature of CPU, when temperature reaches the critical value of temperature sensor, the function of auto-breaking can be realized, can continuous firing occurs under the Protection Product condition of high temperature concealment harm.
2. the device that in home gateway product, caloric value is maximum is CPU (CPU), the temperature that the present invention has monitored CPU in real time has effectively protected home gateway fail safe, the equipment hot soak condition of solving also nobody shows any interest in and stops because temperature is too high and cause the situation of fire, and this product reaches that temperature is too high can the function of auto-breaking.
Accompanying drawing illustrates:
Accompanying drawing 1 is the temp control switch circuit diagram of this product.
Accompanying drawing 2 is transistor switching circuit figure of this product.
Embodiment:
Embodiment 1:
A kind of method of home gateway high temperature auto-breaking, it is characterized in that: in family's gateway circuit, connect temperature managing and control system, the temperature of design temperature managing and control system, when cpu temperature reaches the critical value of temperature sensor, circuit auto-breaking energy, controls the long-time superhigh temperature work of home gateway.
Embodiment 2:
The method of the home gateway high temperature auto-breaking described in embodiment 1, described temperature managing and control system comprises temperature sensor, triode, resistance, electric capacity, utilize the switching characteristic of triode and the variable resistance of temperature sensor, make high temperature auto-breaking, the base stage of triode connects two resistance, a upper offset resistance and temperature sensor, a below-center offset resistance, draws a pin to connect temperature sensor from CPU.
Embodiment 3:
The method of the home gateway high temperature auto-breaking described in embodiment 1, when the critical value of cpu temperature lower than temperature sensor, the upper offset resistance of triode and below-center offset different resistive values are comparatively large, and base voltage is high, exceed the turn-on threshold voltage of triode, now equipment normally works.
Embodiment 4:
The method of the home gateway high temperature auto-breaking described in embodiment 1, when the critical value of cpu temperature higher than temperature sensor, upper offset resistance and the below-center offset resistance of triode are close, after two electric resistance partial pressures, reach the limiting voltage of triode cut-off, triode ends, and electric current is obstructed, realizes auto-breaking.
Embodiment 5:
The method of the home gateway high temperature auto-breaking described in embodiment 4, triode connects lower bigoted resistance R3, thermistor R1, resistance R2, thermistor R1 connects input current INPUT, be connected output current OUTPUT between triode with lower bigoted resistance R3, triode is all connected 5V power supply with resistance R2.
Embodiment 6:
The method of the home gateway high temperature auto-breaking described in above-described embodiment, utilizes the switching characteristic of triode and the variable resistance of temperature sensor, the base stage of triode connects two resistance, a upper offset resistance and temperature sensor, a below-center offset resistance, (this pin is the special temperature design for transmitting CPU to connect temperature sensor to draw a pin from CPU, have this CPU on the market at present), temperature sensor adopts the mode contrary with thermistor operation principle to design, when the temperature propagating out from CPU pin is less than critical temperature value, now the resistance value of temperature sensor is smaller, and upper offset resistance is larger, the base voltage of triode will raise, the turn-on threshold voltage triode that exceedes it is with regard to conducting, now equipment can normally work, and when the temperature transmitted from CPU pin exceedes critical temperature value, the resistance of the resistance of temperature sensor now can increase to below-center offset resistance close, and after two electric resistance partial pressures, voltage is lower, reaches the limiting voltage of triode cut-off, at this moment triode cut-off, electric current is obstructed, thus realize the function of high temperature auto-breaking.
Claims (5)
1. the method for a home gateway high temperature auto-breaking, it is characterized in that: in family's gateway circuit, connect temperature managing and control system, the temperature of design temperature managing and control system, when cpu temperature reaches the critical value of temperature sensor, circuit auto-breaking energy, controls the long-time superhigh temperature work of home gateway.
2. the method for home gateway high temperature auto-breaking according to claim 1, it is characterized in that: described temperature managing and control system comprises temperature sensor, triode, resistance, electric capacity, utilize the switching characteristic of triode and the variable resistance of temperature sensor, make high temperature auto-breaking, the base stage of triode connects two resistance, a upper offset resistance and temperature sensor, a below-center offset resistance, draws a pin to connect temperature sensor from CPU.
3. the method for home gateway high temperature auto-breaking according to claim 1, it is characterized in that: when the critical value of cpu temperature lower than temperature sensor, upper offset resistance and the below-center offset different resistive values of triode are larger, base voltage is high, exceed the turn-on threshold voltage of triode, now equipment normally works.
4. the method for home gateway high temperature auto-breaking according to claim 1, it is characterized in that: when the critical value of cpu temperature higher than temperature sensor, upper offset resistance and the below-center offset resistance of triode are close, after two electric resistance partial pressures, reach the limiting voltage of triode cut-off, triode ends, and electric current is obstructed, realizes auto-breaking.
5. the method for home gateway high temperature auto-breaking according to claim 4, it is characterized in that: triode connects lower bigoted resistance R3, thermistor R1, resistance R2, thermistor R1 connects input current INPUT, be connected output current OUTPUT between triode with lower bigoted resistance R3, triode is all connected 5V power supply with resistance R2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357916.7A CN104882852A (en) | 2015-06-26 | 2015-06-26 | High-temperature automatic power-off method of household gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357916.7A CN104882852A (en) | 2015-06-26 | 2015-06-26 | High-temperature automatic power-off method of household gateway |
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| CN104882852A true CN104882852A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357916.7A Pending CN104882852A (en) | 2015-06-26 | 2015-06-26 | High-temperature automatic power-off method of household gateway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097491A (en) * | 2016-06-03 | 2016-11-09 | 广州赛生电子科技有限公司 | A kind of Internet of Things smart lock |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751276A (en) * | 1996-05-23 | 1998-05-12 | Microsoft Corporation | Method for calibrating touch panel displays |
| JPH10165517A (en) * | 1996-12-06 | 1998-06-23 | Tec Corp | Potential medical treatment equipment with warmth |
| CN201556105U (en) * | 2009-10-19 | 2010-08-18 | 中兴通讯股份有限公司 | Self temperature-reducing circuit for wireless terminal |
| CN202260391U (en) * | 2011-09-30 | 2012-05-30 | 南京金三力橡塑有限公司 | Overtemperature protection circuit for heating thermostatic equipment |
| CN103346527A (en) * | 2013-06-14 | 2013-10-09 | 成都锐奕信息技术有限公司 | Wireless access point with overcurrent protection and overtemperature protection |
-
2015
- 2015-06-26 CN CN201510357916.7A patent/CN104882852A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5751276A (en) * | 1996-05-23 | 1998-05-12 | Microsoft Corporation | Method for calibrating touch panel displays |
| JPH10165517A (en) * | 1996-12-06 | 1998-06-23 | Tec Corp | Potential medical treatment equipment with warmth |
| CN201556105U (en) * | 2009-10-19 | 2010-08-18 | 中兴通讯股份有限公司 | Self temperature-reducing circuit for wireless terminal |
| CN202260391U (en) * | 2011-09-30 | 2012-05-30 | 南京金三力橡塑有限公司 | Overtemperature protection circuit for heating thermostatic equipment |
| CN103346527A (en) * | 2013-06-14 | 2013-10-09 | 成都锐奕信息技术有限公司 | Wireless access point with overcurrent protection and overtemperature protection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097491A (en) * | 2016-06-03 | 2016-11-09 | 广州赛生电子科技有限公司 | A kind of Internet of Things smart lock |
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Application publication date: 20150902 |