CN105531894A - System and method for controlling power switch - Google Patents
System and method for controlling power switch Download PDFInfo
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- CN105531894A CN105531894A CN201380003771.XA CN201380003771A CN105531894A CN 105531894 A CN105531894 A CN 105531894A CN 201380003771 A CN201380003771 A CN 201380003771A CN 105531894 A CN105531894 A CN 105531894A
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- temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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Abstract
The embodiment of the invention discloses a system and method for controlling a power switch, and relates to the communication technology field. The system comprises a thermal device, a voltage divider, an upper-and-lower electrical controller and a first power supply. The method comprises the steps that the upper-and-lower electrical controller monitors the voltage of a first end of the thermal device, and when the monitored voltage is larger than a preset first voltage threshold, a second power supplied is powered off; when the monitored voltage is smaller than a preset second voltage threshold, the second power supplied is powered on. Or, the upper-and-lower electrical controller monitors the voltage of the first end of the thermal device, and when the monitored voltage is smaller than the preset first voltage threshold, the second power supplied is powered off; when the monitored voltage is larger than the preset second voltage threshold, the second power supplied is powered on. According to the invention, when the temperature at a temperature monitor point is abnormal, the temperature monitor point is protected by power off; and when the temperature at a temperature monitor point goes back to normal, area-power-supply is done automatically without manual intervention.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of system and method controlling mains switch.
Background technology
Along with the integrated level of chip (such as processor) and veneer is more and more higher, the power consumption of chip and veneer is also increasing, and the heat-sinking capability of needs is also more and more stronger.When the cooling system exception of chip and veneer time, the temperature of chip and veneer can sharply rise, if do not add any protection, chip and veneer can be caused to burn.In order to protect IC and veneer are not burnt, the temperature at some positions on chip and veneer (can be called monitoring temperature point) is monitored, the mains switch that control temperature control point is corresponding.
At present, the method of conventional control mains switch is as follows: for each monitoring temperature point arranges a temperature sensor, the temperature of monitoring temperature point is obtained by temperature sensor, CPU poll reads each temperature sensor to obtain the temperature of each monitoring temperature point, CPU controls mains switch corresponding to each monitoring temperature point according to the temperature of each monitoring temperature point, and namely controlling power supply corresponding to each monitoring temperature point is the power-on and power-off of each monitoring temperature point.
Existing method is when the temperature anomaly of monitoring temperature point; can power-off corresponding to control temperature control point; lower electric protection is carried out to monitoring temperature point; but when the temperature return of monitoring temperature point is normal; due to the electrifying timing sequence requirement of whole plate cannot be met; the electric power starting that uncontrollable monitoring temperature point is corresponding, automatically for monitoring temperature point powers on, needs manually for monitoring temperature point powers on.
Summary of the invention
In view of this, embodiments provide a kind of system and method controlling mains switch, automatically cannot power on to solve prior art, need the problem manually powered on.
First aspect, embodiments provide a kind of system controlling mains switch, described system comprises:
Temperature-sensitive device, partial pressure device, power-on and power-off controller and the first power supply;
Described temperature-sensitive device, is placed in monitoring temperature point, for monitoring the temperature of device corresponding to described monitoring temperature point or veneer;
Wherein, the first end of described temperature-sensitive device is connected with the first end of described power-on and power-off controller with the first end of described partial pressure device respectively, and the second end of described temperature-sensitive device is connected with described first power supply; Second end ground connection of described partial pressure device; Second end of described power-on and power-off controller is connected with described first power supply, and the 3rd end of described power-on and power-off controller is connected with second source, and described second source is that device that described monitoring temperature point is corresponding or veneer are powered;
Described power-on and power-off controller, for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and diminishes, and when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open; Or for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and becomes large, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open;
Described first power supply, for powering for described temperature-sensitive device, described partial pressure device and described power-on and power-off controller.
In the first possible implementation of first aspect, described temperature-sensitive device, described partial pressure device and described power-on and power-off controller are arranged on the first circuit board at described monitoring temperature point and described second source place;
Described first power supply is arranged on the second circuit board.
In conjunction with the implementation of first aspect or the first possible implementation of first aspect, in the implementation that the third is possible, described temperature-sensitive device is: thermal resistance or thermistor; Described partial pressure device is resistance.
In conjunction with the implementation of first aspect or the first possible implementation of first aspect, in the 4th kind of possible implementation, described power-on and power-off controller is: modulus AD converter, comparator, programmable logic device or IC chip.
Second aspect, embodiments provide a kind of method utilizing Systematical control mains switch described in first aspect, described method comprises:
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and diminishes; Or,
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and becomes large.
The third aspect, embodiments provide a kind of system controlling mains switch, described system comprises:
Temperature-sensitive device, partial pressure device, power-on and power-off controller and the first power supply;
Described temperature-sensitive device, is placed in monitoring temperature point, for monitoring the temperature of device corresponding to described monitoring temperature point or veneer;
Wherein, the first end of described temperature-sensitive device is connected with the first end of described power-on and power-off controller with the first end of described partial pressure device respectively, the second end ground connection of described temperature-sensitive device; Second end of described partial pressure device is connected with described first power supply; Second end of described power-on and power-off controller is connected with described first power supply, and the 3rd end of described power-on and power-off controller is connected with second source, and described second source is that device that described monitoring temperature point is corresponding or veneer are powered;
Described power-on and power-off controller, for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and becomes large, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open; Or for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and diminishes, and when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open;
Described first power supply, for powering for described temperature-sensitive device, described partial pressure device and described power-on and power-off controller.
In the first possible implementation of the third aspect, described temperature-sensitive device, described partial pressure device and described power-on and power-off controller are arranged on the first circuit board at described monitoring temperature point and described second source place;
Described first power supply is arranged on the second circuit board.
In conjunction with the implementation of the third aspect or the first possible implementation of the third aspect, in the implementation that the third is possible, described temperature-sensitive device is: thermal resistance or thermistor; Described partial pressure device is resistance.
In conjunction with the implementation of the third aspect or the first possible implementation of the third aspect, in the 4th kind of possible implementation, described power-on and power-off controller is: modulus AD converter, comparator, programmable logic device or IC chip.
Fourth aspect, embodiments provide a kind of method utilizing Systematical control mains switch described in the third aspect, described method comprises:
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and becomes large; Or,
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and diminishes.
Utilize technique scheme; the temperature of monitor temperature control point is detected by temperature-sensitive device; first power supply is that power-on and power-off controller is powered; power-on and power-off controller detects the voltage of monitoring temperature-sensitive device first end; and the mains switch that control is powered for monitoring temperature point; not only can when the temperature anomaly of monitoring temperature point; lower electric protection is carried out to monitoring temperature point; can also when the temperature return of monitoring temperature point be normal; manual intervention is not needed to choose electricity from moving plate; a large amount of maintenance costs can be reduced, and improve the reliability of equipment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system of the first control mains switch that the embodiment of the present invention 1 provides;
Fig. 2 is the system of the second control mains switch that the embodiment of the present invention 1 provides;
Fig. 3 is the system of the first control mains switch that the embodiment of the present invention 2 provides
Fig. 4 is the system of the second control mains switch that the embodiment of the present invention 2 provides;
Fig. 5 is a kind of system controlling mains switch that the embodiment of the present invention 3 provides;
Fig. 6 is a kind of system controlling mains switch that the embodiment of the present invention 4 provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
See Fig. 1, embodiments provide a kind of system controlling mains switch, comprising:
Temperature-sensitive device 101, partial pressure device 102, power-on and power-off controller 103 and the first power supply 104;
Temperature-sensitive device 101, is placed in monitoring temperature point, the device corresponding for monitor temperature control point or the temperature of veneer;
Wherein, the first end of temperature-sensitive device 101 is connected with the first end of power-on and power-off controller 103 with the first end of partial pressure device 102 respectively, and the second end of temperature-sensitive device 101 is connected with the first power supply 104; Second end ground connection of partial pressure device 102; Second end of power-on and power-off controller 103 is connected with the first power supply 104, and the 3rd end of power-on and power-off controller 103 is connected with second source, and second source is that device that monitoring temperature point is corresponding or veneer are powered;
Power-on and power-off controller 103, for monitoring the voltage of temperature-sensitive device 101 first end, wherein, temperature-sensitive device 101 raises resistance with temperature and diminishes, and when monitoring voltage and being greater than the first default voltage threshold, controls second source and closes; When monitoring voltage and being less than the second default voltage threshold, control second source and open; Or for monitoring the voltage of temperature-sensitive device 101 first end, wherein, temperature-sensitive device 101 raises resistance with temperature and becomes large, when monitoring voltage and being less than the first default voltage threshold, controls second source and closes; When monitoring voltage and being greater than the second default voltage threshold, control second source and open;
First power supply 104, for powering for temperature-sensitive device 101, partial pressure device 102 and power-on and power-off controller 103.
Preferably, see Fig. 2, temperature-sensitive device 101, partial pressure device 102 and power-on and power-off controller 103 are arranged on the first circuit board 105 at monitoring temperature point and second source place;
First power supply 104 is arranged on second circuit board 106.
Preferably, temperature-sensitive device 101 can be: thermal resistance or thermistor; Partial pressure device 102 can be resistance.
Preferably, power-on and power-off controller 103 can be: AD (AnalogDigital, modulus) transducer, comparator, programmable logic device or other type i C (IntegratedCircuit, integrated circuit) chip.
The system of the control mains switch described in the embodiment of the present invention, by the temperature of temperature-sensitive device monitor temperature control point, first power supply is that power-on and power-off controller is powered, the voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, and the mains switch that control is powered for monitoring temperature point, not only can when the temperature anomaly of monitoring temperature point, lower electric protection is carried out to monitoring temperature point, can also when the temperature return of monitoring temperature point be normal, manual intervention is not needed to choose electricity from moving plate, a large amount of maintenance costs can be reduced, and improve the reliability of equipment, using value is had to high temperature outlying mountain area outdoor equipment.And temperature-sensitive device and partial pressure device volume is little, precision is high, can place near monitoring temperature point, can accurate temperature measurements.Do not need to be controlled by CPU, and can to electricity under CPU.
Embodiment 2
See Fig. 3, embodiments provide a kind of system controlling mains switch, comprising:
Temperature-sensitive device 201, partial pressure device 202, power-on and power-off controller 203 and the first power supply 204;
Temperature-sensitive device 201, is placed in monitoring temperature point, the device corresponding for monitor temperature control point or the temperature of veneer;
Wherein, the first end of temperature-sensitive device 201 is connected with the first end of power-on and power-off controller 203 with the first end of partial pressure device 202 respectively, the second end ground connection of temperature-sensitive device 201; Second end of partial pressure device 202 is connected with the first power supply 204; Second end of power-on and power-off controller 203 is connected with the first power supply 204, and the 3rd end of power-on and power-off controller 203 is connected with second source, and second source is that device that monitoring temperature point is corresponding or veneer are powered;
Power-on and power-off controller 203, for monitoring the voltage of temperature-sensitive device 201 first end, wherein, temperature-sensitive device 201 raises resistance with temperature and becomes large, when monitoring voltage and being greater than the first default voltage threshold, controls second source and closes; When monitoring voltage and being less than the second default voltage threshold, control second source and open; Or for monitoring the voltage of temperature-sensitive device 201 first end, wherein, temperature-sensitive device 201 raises resistance with temperature and diminishes, and when monitoring voltage and being less than the first default voltage threshold, controls second source and closes; When monitoring voltage and being greater than the second default voltage threshold, control second source and open;
First power supply 204, for powering for temperature-sensitive device 201, partial pressure device 202 and power-on and power-off controller 203.
Preferably, see Fig. 4, temperature-sensitive device 201, partial pressure device 202 and power-on and power-off controller 203 are arranged on the first circuit board 205 at monitoring temperature point and second source place;
First power supply 204 is arranged on second circuit board 206.
Preferably, temperature-sensitive device 201 can be: thermal resistance or thermistor; Partial pressure device 202 can be resistance.
Preferably, power-on and power-off controller 203 can be: AD converter, comparator, programmable logic device or other type i C chip.
The system of the control mains switch described in the embodiment of the present invention, by the temperature of temperature-sensitive device monitor temperature control point, first power supply is that power-on and power-off controller is powered, the voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, and the mains switch that control is powered for monitoring temperature point, not only can when the temperature anomaly of monitoring temperature point, lower electric protection is carried out to monitoring temperature point, can also when the temperature return of monitoring temperature point be normal, manual intervention is not needed to choose electricity from moving plate, a large amount of maintenance costs can be reduced, and improve the reliability of equipment, using value is had to high temperature outlying mountain area outdoor equipment.And temperature-sensitive device and partial pressure device volume is little, precision is high, can place near monitoring temperature point, can accurate temperature measurements.Do not need to be controlled by CPU, and can to electricity under CPU.
Embodiment 3
See Fig. 5, embodiments provide a kind of system controlling mains switch, comprising: multiple temperature-sensitive device 301, multiple partial pressure device 302, power-on and power-off controller 303 and the first power supply 304;
Each temperature-sensitive device 301, is placed in the monitoring temperature point corresponding with it, for monitoring the temperature of device corresponding to the monitoring temperature point corresponding with it or veneer;
Wherein, multiple temperature-sensitive device 301, multiple partial pressure device 302 and power-on and power-off controller 303 are arranged on the first circuit board 305 at multiple monitoring temperature point and multiple second source place; Each second source is that the device corresponding with each monitoring temperature point or veneer are powered; Temperature-sensitive device 301, partial pressure device 302, monitoring temperature point and second source one_to_one corresponding, number are identical; The first end of each temperature-sensitive device 301 is connected with the first end of power-on and power-off controller 303 with the first end of each partial pressure device 302 respectively, and the second end of each temperature-sensitive device 301 is connected with the first power supply 304; Second end of each partial pressure device 302 is connected with the first power supply 304; Second end ground connection of power-on and power-off controller 303, the 3rd end of power-on and power-off controller 303 is connected with each second source;
First power supply 304 is arranged on second circuit board 306;
Power-on and power-off controller 303, for monitoring the voltage of multiple temperature-sensitive device 301 first end, wherein, temperature-sensitive device 301 raises resistance with temperature and diminishes, when the voltage monitoring certain temperature-sensitive device 301 first end is greater than the first default voltage threshold, the second source controlling certain temperature-sensitive device 301 correspondence is closed; When the voltage monitoring certain temperature-sensitive device 301 first end is less than the second default voltage threshold, the second source controlling certain temperature-sensitive device 301 correspondence is opened; Or, for monitoring the voltage of multiple temperature-sensitive device 301 first end, wherein, temperature-sensitive device 301 raises resistance change greatly with temperature, when the voltage monitoring certain temperature-sensitive device 301 first end is less than the first default voltage threshold, the second source controlling certain temperature-sensitive device 301 correspondence is closed; When the voltage monitoring certain temperature-sensitive device 301 first end is greater than the second default voltage threshold, the second source controlling certain temperature-sensitive device 301 correspondence is opened.
First power supply 304, for powering for multiple temperature-sensitive device 301, multiple partial pressure device 302 and power-on and power-off controller 303.
Wherein, first circuit board 305 and second circuit board 306 can be veneer, backboard etc.
Wherein, temperature-sensitive device 301 can be thermal resistance or thermistor etc.; Partial pressure device 302 can be resistance etc.; Power-on and power-off controller 303 can be AD converter, comparator, programmable logic device or other types IC chip etc.
It should be noted that, a corresponding temperature-sensitive device 301, the partial pressure device 302 of each monitoring temperature point and a second source, the voltage of multiple temperature-sensitive device 301 monitored by power-on and power-off controller 303, controls the switch of multiple second source.Wherein, monitoring temperature point can be arranged on veneer or various device, also can be arranged in the scope preset near veneer or various device, temperature-sensitive device 301 can be placed on monitoring temperature point by the mode such as welding or inlay, and also can be connected with monitoring temperature point by the mode such as wired or wireless.
System shown in embodiment of the present invention Fig. 5, when temperature-sensitive device 301 diminishes with temperature rising resistance, the voltage of temperature-sensitive device 301 first end is directly proportional to the temperature of monitoring temperature point, and upward and downward electric process is as follows:
The voltage of temperature-sensitive device 301 first end monitored by power-on and power-off controller 303, when the voltage monitoring temperature-sensitive device 301 first end is greater than the first default voltage threshold, the second source controlling temperature-sensitive device 301 correspondence is closed, and is electricity under the monitoring temperature point that second source is corresponding.The voltage of temperature-sensitive device 301 first end monitored by power-on and power-off controller 303, when the voltage monitoring temperature-sensitive device 301 first end is less than the second default voltage threshold, the second source controlling temperature-sensitive device 301 correspondence is opened, and the monitoring temperature point corresponding for second source powers on.
System shown in embodiment of the present invention Fig. 5, when temperature-sensitive device 301 becomes large with temperature rising resistance, the voltage of temperature-sensitive device 301 first end and the temperature of monitoring temperature point are inversely proportional to, and upward and downward electric process is as follows:
The voltage of temperature-sensitive device 301 first end monitored by power-on and power-off controller 303, when the voltage monitoring temperature-sensitive device 301 first end is less than the first default voltage threshold, the second source controlling temperature-sensitive device 301 correspondence is closed, and is electricity under the monitoring temperature point that second source is corresponding.The voltage of temperature-sensitive device 301 first end monitored by power-on and power-off controller 303, when the voltage monitoring temperature-sensitive device 301 first end is greater than the second default voltage threshold, the second source controlling temperature-sensitive device 301 correspondence is opened, and the monitoring temperature point corresponding for second source powers on.
Wherein, the first voltage threshold preset and the second voltage threshold preset can be arranged according to practical application situation, do not limit this.
The system of the control mains switch described in the embodiment of the present invention, by the temperature of temperature-sensitive device monitor temperature control point, first power supply is that power-on and power-off controller is powered, the voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, and the mains switch that control is powered for monitoring temperature point, not only can when the temperature anomaly of monitoring temperature point, lower electric protection is carried out to monitoring temperature point, can also when the temperature return of monitoring temperature point be normal, manual intervention is not needed to choose electricity from moving plate, a large amount of maintenance costs can be reduced, and improve the reliability of equipment, using value is had to high temperature outlying mountain area outdoor equipment.And temperature-sensitive device and partial pressure device volume is little, precision is high, can place near monitoring temperature point, can accurate temperature measurements.Do not need to be controlled by CPU, and can to electricity under CPU.
Embodiment 4
See Fig. 6, embodiments provide a kind of system controlling mains switch, comprising: multiple temperature-sensitive device 401, multiple partial pressure device 402, power-on and power-off controller 403 and the first power supply 404;
Each temperature-sensitive device 301, is placed in the monitoring temperature point corresponding with it, for monitoring the temperature of device corresponding to the monitoring temperature point corresponding with it or veneer;
Wherein, multiple temperature-sensitive device 401, multiple partial pressure device 402 and power-on and power-off controller 403 are arranged on the first circuit board 405 at multiple monitoring temperature point and multiple second source place; Each second source is that the device corresponding with each monitoring temperature point or veneer are powered; Temperature-sensitive device 401, partial pressure device 402, monitoring temperature point and second source one_to_one corresponding, number are identical; The first end of each temperature-sensitive device 401 is connected with the first end of power-on and power-off controller 403 with the first end of each partial pressure device 402 respectively, the second end ground connection of each temperature-sensitive device 401; Second end of each partial pressure device 402 is connected with the first power supply 404; Second end of power-on and power-off controller 403 is connected with the first power supply 404, and the 3rd end of power-on and power-off controller 403 is connected with each second source;
First power supply 404 is arranged on second circuit board 406;
Power-on and power-off controller 403, for monitoring the voltage of multiple temperature-sensitive device 401 first end, wherein, temperature-sensitive device 401 raises resistance with temperature and becomes large, when the voltage monitoring certain temperature-sensitive device 401 first end is greater than the first default voltage threshold, the second source controlling certain temperature-sensitive device 401 correspondence is closed; When the voltage monitoring certain temperature-sensitive device 401 first end is less than the second default voltage threshold, the second source controlling certain temperature-sensitive device 401 correspondence is opened; Or, for monitoring the voltage of multiple temperature-sensitive device 401 first end, wherein, temperature-sensitive device 401 diminishes with temperature rising resistance, when the voltage monitoring certain temperature-sensitive device 401 first end is less than the first default voltage threshold, the second source controlling certain temperature-sensitive device 401 correspondence is closed; When the voltage monitoring certain temperature-sensitive device 401 first end is greater than the second default voltage threshold, the second source controlling certain temperature-sensitive device 401 correspondence is opened.
First power supply 404, for powering for multiple temperature-sensitive device 401, multiple partial pressure device 402 and power-on and power-off controller 403.
Wherein, first circuit board 405 and second circuit board 406 can be veneer, backboard etc.
Wherein, temperature-sensitive device 401 can be thermal resistance or thermistor etc.; Partial pressure device 402 can be resistance etc.; Power-on and power-off controller 403 can be AD converter, comparator, programmable logic device or other types IC chip etc.
It should be noted that, a corresponding temperature-sensitive device 401, the partial pressure device 402 of each monitoring temperature point and a second source, the voltage of multiple temperature-sensitive device 401 monitored by power-on and power-off controller 403, controls the switch of multiple second source.Wherein, monitoring temperature point can be arranged on veneer or various device, also can be arranged in the scope preset near veneer or various device, and temperature-sensitive device 401 can be placed on monitoring temperature point by the mode such as welding or inlay.
System shown in embodiment of the present invention Fig. 6, when temperature-sensitive device 401 diminishes with temperature rising resistance, the voltage of temperature-sensitive device 401 first end and the temperature of monitoring temperature point are inversely proportional to, and upward and downward electric process is as follows:
The voltage of temperature-sensitive device 401 first end monitored by power-on and power-off controller 403, when the voltage monitoring temperature-sensitive device 401 first end is less than the first default voltage threshold, the second source controlling temperature-sensitive device 401 correspondence is closed, and is electricity under the monitoring temperature point that second source is corresponding.The voltage of temperature-sensitive device 401 first end monitored by power-on and power-off controller 403, when the voltage monitoring temperature-sensitive device 401 first end is greater than the second default voltage threshold, the second source controlling temperature-sensitive device 401 correspondence is opened, and the monitoring temperature point corresponding for second source powers on.
System shown in embodiment of the present invention Fig. 6, when temperature-sensitive device 401 becomes large with temperature rising resistance, the voltage of temperature-sensitive device 401 first end is directly proportional to the temperature of monitoring temperature point, and upward and downward electric process is as follows:
The voltage of temperature-sensitive device 401 first end monitored by power-on and power-off controller 403, when the voltage monitoring temperature-sensitive device 401 first end is greater than the first default voltage threshold, the second source controlling temperature-sensitive device 401 correspondence is closed, and is electricity under the monitoring temperature point that second source is corresponding.The voltage of temperature-sensitive device 401 first end monitored by power-on and power-off controller 403, when the voltage monitoring temperature-sensitive device 401 first end is less than the second default voltage threshold, the second source controlling temperature-sensitive device 401 correspondence is opened, and the monitoring temperature point corresponding for second source powers on.
Wherein, the first voltage threshold preset and the second voltage threshold preset can be arranged according to practical application situation, do not limit this.
The system of the control mains switch described in the embodiment of the present invention, by the temperature of temperature-sensitive device monitor temperature control point, first power supply is that power-on and power-off controller is powered, the voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, and the mains switch that control is powered for monitoring temperature point, not only can when the temperature anomaly of monitoring temperature point, lower electric protection is carried out to monitoring temperature point, can also when the temperature return of monitoring temperature point be normal, manual intervention is not needed to choose electricity from moving plate, a large amount of maintenance costs can be reduced, and improve the reliability of equipment, using value is had to high temperature outlying mountain area outdoor equipment.And temperature-sensitive device and partial pressure device volume is little, precision is high, can place near monitoring temperature point, can accurate temperature measurements.Do not need to be controlled by CPU, and can to electricity under CPU.
Embodiment 5
Embodiments provide a kind of method utilizing Systematical control mains switch in embodiment 1 or 3 described in any embodiment, comprising:
The voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring voltage and being greater than the first default voltage threshold, controls second source and closes; When monitoring voltage and being less than the second default voltage threshold, control second source and open, wherein, temperature-sensitive device raises resistance with temperature and diminishes.Or,
The voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring voltage and being less than the first default voltage threshold, controls second source and closes; When monitoring voltage and being greater than the second default voltage threshold, control second source and open, wherein, temperature-sensitive device raises resistance with temperature and becomes large.
The embodiment of the present invention additionally provides a kind of method utilizing Systematical control mains switch in embodiment 2 or 4 described in any embodiment, comprising:
The voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring voltage and being greater than the first default voltage threshold, controls second source and closes; When monitoring voltage and being less than the second default voltage threshold, control second source and open, wherein, temperature-sensitive device raises resistance with temperature and becomes large.Or,
The voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring voltage and being less than the first default voltage threshold, controls second source and closes; When monitoring voltage and being greater than the second default voltage threshold, control second source and open, wherein, temperature-sensitive device raises resistance with temperature and diminishes.
The method of the control mains switch described in the embodiment of the present invention, by the temperature of temperature-sensitive device monitor temperature control point, first power supply is that power-on and power-off controller is powered, the voltage of power-on and power-off monitoring control devices temperature-sensitive device first end, and the mains switch that control is powered for monitoring temperature point, not only can when the temperature anomaly of monitoring temperature point, lower electric protection is carried out to monitoring temperature point, can also when the temperature return of monitoring temperature point be normal, manual intervention is not needed to choose electricity from moving plate, a large amount of maintenance costs can be reduced, and improve the reliability of equipment, using value is had to high temperature outlying mountain area outdoor equipment.And temperature-sensitive device and partial pressure device volume is little, precision is high, can place near monitoring temperature point, can accurate temperature measurements.Do not need to be controlled by CPU, and can to electricity under CPU.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. control a system for mains switch, it is characterized in that, described system comprises:
Temperature-sensitive device, partial pressure device, power-on and power-off controller and the first power supply;
Described temperature-sensitive device, is placed in monitoring temperature point, for monitoring the temperature of device corresponding to described monitoring temperature point or veneer;
Wherein, the first end of described temperature-sensitive device is connected with the first end of described power-on and power-off controller with the first end of described partial pressure device respectively, and the second end of described temperature-sensitive device is connected with described first power supply; Second end ground connection of described partial pressure device; Second end of described power-on and power-off controller is connected with described first power supply, and the 3rd end of described power-on and power-off controller is connected with second source, and described second source is that device that described monitoring temperature point is corresponding or veneer are powered;
Described power-on and power-off controller, for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and diminishes, and when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open; Or for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and becomes large, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open;
Described first power supply, for powering for described temperature-sensitive device, described partial pressure device and described power-on and power-off controller.
2. system according to claim 1, is characterized in that, described temperature-sensitive device, described partial pressure device and described power-on and power-off controller are arranged on the first circuit board at described monitoring temperature point and described second source place;
Described first power supply is arranged on the second circuit board.
3. system according to claim 1 and 2, is characterized in that, described temperature-sensitive device is: thermal resistance or thermistor; Described partial pressure device is resistance.
4. system according to claim 1 and 2, is characterized in that, described power-on and power-off controller is:
Modulus AD converter, comparator, programmable logic device or IC chip.
5. utilize a method for the Systematical control mains switch described in the arbitrary claim of claim 1-4, it is characterized in that, described method comprises:
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and diminishes; Or,
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and becomes large.
6. control a system for mains switch, it is characterized in that, described system comprises:
Temperature-sensitive device, partial pressure device, power-on and power-off controller and the first power supply;
Described temperature-sensitive device, is placed in monitoring temperature point, for monitoring the temperature of device corresponding to described monitoring temperature point or veneer;
Wherein, the first end of described temperature-sensitive device is connected with the first end of described power-on and power-off controller with the first end of described partial pressure device respectively, the second end ground connection of described temperature-sensitive device; Second end of described partial pressure device is connected with described first power supply; Second end of described power-on and power-off controller is connected with described first power supply, and the 3rd end of described power-on and power-off controller is connected with second source, and described second source is that device that described monitoring temperature point is corresponding or veneer are powered;
Described power-on and power-off controller, for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and becomes large, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open; Or for monitoring the voltage of described temperature-sensitive device first end, wherein, described temperature-sensitive device raises resistance with temperature and diminishes, and when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open;
Described first power supply, for powering for described temperature-sensitive device, described partial pressure device and described power-on and power-off controller.
7. system according to claim 6, is characterized in that, described temperature-sensitive device, described partial pressure device and described power-on and power-off controller are arranged on the first circuit board at described monitoring temperature point and described second source place;
Described first power supply is arranged on the second circuit board.
8. the system according to claim 6 or 7, is characterized in that, described temperature-sensitive device is: thermal resistance or thermistor; Described partial pressure device is resistance.
9. the system according to claim 6 or 7, is characterized in that, described power-on and power-off controller is:
Modulus AD converter, comparator, programmable logic device or IC chip.
10. utilize a method for the Systematical control mains switch described in the arbitrary claim of claim 6-9, it is characterized in that, described method comprises:
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being greater than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being less than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and becomes large; Or,
The voltage of described power-on and power-off monitoring control devices temperature-sensitive device first end, when monitoring described voltage and being less than the first default voltage threshold, controls described second source and closes; When monitoring described voltage and being greater than the second default voltage threshold, control described second source and open, wherein, described temperature-sensitive device raises resistance with temperature and diminishes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013073958 | 2013-04-09 |
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| CN105531894A true CN105531894A (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380003771.XA Pending CN105531894A (en) | 2013-04-09 | 2013-04-09 | System and method for controlling power switch |
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| CN1296167A (en) * | 1999-11-16 | 2001-05-23 | 威盛电子股份有限公司 | Method and device for testing temp. of notebook computer |
| US20030006785A1 (en) * | 2000-03-10 | 2003-01-09 | Manfred Reiss | Temperature recording device |
| CN2831632Y (en) * | 2005-08-31 | 2006-10-25 | 中兴通讯股份有限公司 | Cell phone having function of measuring temp |
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Application publication date: 20160427 |