CN103391664B - The water circulation automatic radiating system aging for light fixture and attemperating unit thereof - Google Patents
The water circulation automatic radiating system aging for light fixture and attemperating unit thereof Download PDFInfo
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- CN103391664B CN103391664B CN201210144940.9A CN201210144940A CN103391664B CN 103391664 B CN103391664 B CN 103391664B CN 201210144940 A CN201210144940 A CN 201210144940A CN 103391664 B CN103391664 B CN 103391664B
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Abstract
The invention discloses a kind of for water circulation automatic radiating system and attemperating unit thereof, attemperating unit comprises: temperature measurement module, and the temperature transition of water circulation automatic heat radiator is become thermometric voltage signal; Reference voltage module, exports the first and second reference voltages preset; Voltage comparison module, branch compares thermometric voltage signal and the first and second reference voltage signals to obtain the first and second enable signals; Switch module, opens based on the first and second enable signal branches or closes in water circulation automatic heat radiator and outer water circulation.Wherein, by the temperature transition of water circulation automatic radiating system is become voltage signal, and compare the water cycle process of opening or closing water circulation automatic heat radiator with the reference voltage signal preset, principle is simple, is easy to realize.And combination controls Inner eycle and outer circulation, effectively controls in accurate temperature range, and this scope also can flexible as required, thus improves the precision of ageing test.
Description
Technical field
The present invention relates to cooling system and attemperating unit thereof, particularly relate to a kind of water circulation automatic radiating system aging for light fixture and attemperating unit thereof.
Background technology
In the reliability of electronic equipment detects, ageing test is one of them important detection.But due to ageing test length consuming time, the period heating of electronic equipment is the key factor affecting ageing test result.This problem particularly highlights in the ageing test of light fixture, solid light source LED particularly most with prospects at present.For great power LED, itself light efficiency is high, As time goes on light efficiency will improve further, therefore generate heat highly significant in the course of the work.When carrying out laboratory ageing test to great power LED, need to adopt such as water circulation heat radiation device to dispel the heat to it.In the process adopting water circulation heat radiation device to dispel the heat to great power LED, a kind of simple and device that is that be easy to operate also is needed to realize controlling the water cycle process of water circulation heat radiation device, such as, how open water cyclic process in suitably, and how to close water cycle process in due course, thus it is aging to guarantee that great power LED can carry out at a proper temperature, to obtain the aging optimum life span curve of great power LED light decay at certain temperature.
Summary of the invention
The technical problem to be solved in the present invention be in prior art for controlling the defect of the apparatus structure complexity of the water cycle process of water circulation heat radiation device, a kind of water circulation automatic radiating system and attemperating unit thereof are provided.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of attemperating unit for water circulation automatic heat radiator, comprising:
Temperature measurement module, for detecting the temperature of water circulation automatic heat radiator, and becomes thermometric voltage signal by described temperature transition;
Reference voltage module, comprises the first reference voltage unit and the second reference voltage unit, and in order to export the first default reference voltage and the second reference voltage respectively, wherein said second reference voltage is different from described first reference voltage;
Voltage comparison module, comprises the first voltage comparison unit and the second voltage comparison unit; Two inputs of wherein said first voltage comparison unit are connected with described temperature measurement module and the first reference voltage unit respectively, to receive described thermometric voltage signal and described first reference voltage signal respectively; And by more described thermometric voltage signal and described reference voltage signal to generate the first enable signal; Two inputs of described second voltage comparison unit are connected with described temperature measurement module and the second reference voltage unit respectively, to receive described thermometric voltage signal and described second reference voltage signal respectively; And by more described thermometric voltage signal and described reference voltage signal to generate the second enable signal; And
Switch module, comprises the first switch element and second switch unit; Wherein said first switch element is connected to receive described first enable signal with the output of described first voltage comparison module, and opens based on described first enable signal or close the inner cyclic process of described water circulation automatic heat radiator; Described second switch unit is connected to receive described second enable signal with the output of described second voltage comparison module, and opens based on described second enable signal or close the outer loop process of described water circulation automatic heat radiator.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention, described temperature measurement module comprises thermistor and the regulating resistor of series connection; Wherein,
The resistance of described thermistor reduces with the rising of the temperature of described water circulation automatic heat radiator;
Described thermistor is connected with an input of described first voltage comparison unit and described second voltage comparison unit respectively with the common port of described regulating resistor;
The other end of described thermistor is connected with power supply; And
The other end ground connection of described regulating resistor.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention, described first voltage comparison unit is the first operational amplifier; Described second voltage comparison unit is the second operational amplifier; Wherein,
Described thermistor is connected with the in-phase input end of described first operational amplifier and described second operational amplifier respectively with the common port of described regulating resistor;
The inverting input of described first operational amplifier is connected with described first reference voltage unit; The inverting input of described second operational amplifier is connected with described second reference voltage unit.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention, described first operational amplifier unit and described second operational amplifier unit are LM358 type operational amplifier.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention,
Described first reference voltage unit comprises the first divider resistance and second divider resistance of series connection; Wherein, described first divider resistance is connected with the inverting input of described first operational amplifier with the common port of described second divider resistance, and the other end of described first divider resistance is connected with described power supply, the other end ground connection of described second divider resistance;
Described second reference voltage unit comprises the 3rd divider resistance and the 4th divider resistance of series connection; Wherein, described 3rd divider resistance is connected with the inverting input of described second operational amplifier with the common port of described 4th divider resistance, and the other end of described 3rd divider resistance is connected with described power supply, the other end ground connection of described 4th divider resistance.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention, described first reference voltage unit and described second reference voltage unit are regulated power supply.
In the attemperating unit for water circulation automatic heat radiator of the foundation embodiment of the present invention,
Described first switch element is for comprising the first field-effect transistor and the first relay coil; Wherein, the grid of described first field-effect transistor is connected with the output of described first operational amplifier, and drain electrode is connected with the coil of described first relay coil, source ground; The normally opened contact of described first relay coil is connected with the electromagnetically operated valve of described water circulation automatic heat radiator, by controlling the conducting of described power supply and described electromagnetically operated valve or turning off to open or close the inner cyclic process of described water circulation automatic heat radiator;
Described second switch unit is for comprising the second field-effect transistor and the second relay coil; Wherein, the grid of described second field-effect transistor is connected with the output of described second operational amplifier, and drain electrode is connected with the coil of described second relay coil, source ground; The normally opened contact of described second relay coil is connected with the water pump of described water circulation automatic heat radiator, by controlling the conducting of external power supply and described water pump or turning off the outer loop process of opening or closing described water circulation automatic heat radiator.
Present invention also offers a kind of water circulation automatic radiating system aging for light fixture, comprising:
Water circulation automatic heat radiator, for dispelling the heat to described light fixture by water circulation; And
Attemperating unit described in above any one, opens for the temperature by detecting described water circulation automatic heat radiator or closes the water cycle process of described water circulation automatic heat radiator.
In the water circulation automatic radiating system of the foundation embodiment of the present invention, described light fixture comprises heat-conducting substrate and is arranged on the light source on described heat-conducting substrate; Wherein,
Described heat-conducting substrate is arranged on described water circulation automatic heat radiator, to be dispelled the heat by described water circulation automatic heat radiator; And
The temperature measurement module of described attemperating unit is arranged on described heat-conducting substrate to detect the temperature of described heat-conducting substrate.
In the water circulation automatic radiating system of the foundation embodiment of the present invention, described light source is great power LED.
The beneficial effect that the present invention produces is: in attemperating unit of the present invention, by the temperature transition of water circulation automatic heat radiator is become voltage signal, and compare with the reference voltage signal preset, thus result is opened or is closed the water cycle process of water circulation automatic heat radiator based on the comparison, principle is simple, is easy to realize.In addition, attemperating unit of the present invention controls Inner eycle and the outer circulation of water circulation automatic heat radiator by combination, water circulation automatic heat radiator can be controlled effectively in accurate temperature range, and this scope also can flexible as required, thus improve the precision of ageing test.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the logic diagram of the water circulation automatic radiating system of the embodiment of the present invention;
Fig. 2 is the logic diagram of the water circulation automatic radiating system of another embodiment of the present invention;
Fig. 3 is the exemplary circuit schematic diagram of attemperating unit in Fig. 2.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows the logic diagram of the water circulation automatic radiating system according to the embodiment of the present invention, and the water circulation automatic radiating system aging for light fixture according to the embodiment of the present invention comprises water circulation automatic heat radiator 200 and attemperating unit 100.Wherein, water circulation automatic heat radiator 200, for by water circulation, dispels the heat to light fixture in light fixture ageing process.Attemperating unit 100 is for detecting the temperature of water circulation automatic heat radiator 200, and open or close the water cycle process stating water circulation automatic heat radiator 200 based on this temperature, thus water circulation automatic heat radiator 200 is maintained in default temperature value place or default temperature range.
Water circulation automatic heat radiator 200 comprises the water tank carrying out water circulation, and light fixture to be aging laid by this water tank.Wherein, this light fixture comprises heat-conducting substrate and is arranged on the light source on heat-conducting substrate.Heat-conducting substrate can be metal substrate, such as aluminium base.Light fixture includes but not limited to tungsten lamp, Gas lamp, solid light source etc., below will be specially great power LED for solid light source LED() set forth.Heat on light source can be passed to water tank by heat-conducting substrate effectively, thus water cycle process is by water tank, dispels the heat in particular by the heat-conducting substrate on water tank, thus realizes the heat radiation to light fixture.
As shown in Figure 1, attemperating unit 100 comprises temperature measurement module 110, reference voltage module 130, voltage comparison module 120 and switch module 140.
Wherein, temperature measurement module 110 can detect the temperature of water circulation automatic heat radiator 200, specifically will detect the temperature of the heat-conducting substrate be arranged on water circulation automatic heat radiator 200, and temperature transition is become thermometric voltage signal.Because heat-conducting substrate is laid the great power LED carrying out testing, and heat-conducting substrate has thermal conductivity, the temperature of what therefore temperature measurement module 110 detected in fact is great power LED.
Reference voltage module 130 exports the reference voltage preset, and can preset this reference voltage based on the operating temperature ratings of great power LED.Such as, a threshold temperature of the corresponding heat-conducting substrate of reference voltage.
Two inputs of voltage comparison module 120 are connected with temperature measurement module 110 and reference voltage module 130 respectively, thus receive thermometric voltage signal and reference voltage signal respectively; And by comparing thermometric voltage signal and reference voltage signal to obtain enable signal, such as, when the working temperature of heat-conducting substrate corresponding to thermometric voltage signal exceedes threshold temperature, obtain the enable signal starting water circulation.
Switch module 140 is connected to receive enable signal with the output of voltage comparison module 120, and opens based on enable signal or close the water cycle process of water circulation automatic heat radiator 200.
Fig. 2 shows the logic diagram of water circulation automatic radiating system according to the preferred embodiment of the present invention, and in this embodiment, water circulation automatic heat radiator 200 comprises the outer loop process in inner cyclic process in water tank and water tank and the external world.Because heat-conducting substrate is positioned at a certain position of water tank, therefore in ageing process, the temperature at this position, higher than the temperature at other position in water tank, therefore can be carried out Inner eycle and dispel the heat to this position.When the bulk temperature of water in water tank is all higher, and when Inner eycle cannot be used to dispel the heat, the hot water in water tank and the cold water outside water tank can be carried out outer circulation, thus reduce water tank temperature further, to dispel the heat to great power LED.Wherein, water circulation automatic heat radiator 200 controls unlatching or the closedown of Inner eycle by electromagnetically operated valve 210, controls unlatching or the closedown of outer circulation by water pump 220.
As shown in Figure 2, in attemperating unit 100, reference voltage module comprises the first reference voltage unit 131 and the second reference voltage unit 132, and export the first default reference voltage and the second reference voltage respectively, wherein the second reference voltage is different from the first reference voltage.Similarly, the first reference voltage and the second reference voltage all set based on the operating temperature ratings of heat-conducting substrate, and wherein, the threshold temperature of the heat-conducting substrate that the first reference voltage is corresponding is lower than the threshold temperature of heat-conducting substrate corresponding to the second reference voltage.
Voltage comparison module comprises the first voltage comparison unit 121 and the second voltage comparison unit 122; Wherein two inputs of the first voltage comparison unit 121 are connected with temperature measurement module and the first reference voltage unit 131 respectively, to receive thermometric voltage signal and the first reference voltage signal respectively; And by comparing thermometric voltage signal and reference voltage signal to obtain the first enable signal.Two inputs of the second voltage comparison unit 122 are connected with temperature measurement module and the second reference voltage unit 132 respectively, to receive thermometric voltage signal and the second reference voltage signal respectively; And by comparing thermometric voltage signal and reference voltage signal to obtain the second enable signal.In other words, the threshold temperature of heat-conducting substrate corresponding with the first reference voltage for the working temperature of heat-conducting substrate corresponding for thermometric voltage signal is compared, the threshold temperature of heat-conducting substrate corresponding with the second reference voltage for the working temperature of heat-conducting substrate corresponding for thermometric voltage signal is compared.When higher than threshold temperature, obtain the enable signal of open water circulation.
Switch module comprises the first switch element 141 and second switch unit 142; Wherein the first switch element 141 is connected to receive the first enable signal with the output of the first voltage comparison module, and opens based on the first enable signal or close the inner cyclic process of water circulation automatic heat radiator 200.Second switch unit 142 is connected to receive the second enable signal with the output of the second voltage comparison module, and opens based on the second enable signal or close the outer loop process of water circulation automatic heat radiator 200.
Fig. 3 shows the exemplary circuit schematic diagram of attemperating unit 100 in Fig. 2, those skilled in the art should know, circuit diagram in Fig. 3 is only with for example, it is not limitation of the present invention, various piece in this circuit diagram can be applied independently in the attemperating unit 100 shown in attemperating unit 100(Fig. 1 or Fig. 2 in the present invention), also can the overall or attemperating unit 100 that is applied in the mode of combination in any in the present invention.In addition, said connection herein, comprises direct electrical connection, also comprises being of coupled connections by other electronic device.
As shown in Figure 3, in practical operation, the working power of attemperating unit 100 is DC low voltage power supply, and the working power of water circulation automatic heat radiator 200 is AC power, the power supply of the attemperating unit 100 therefore in Fig. 3 also comprises transformer T1, for high pressure drop is pressed onto low pressure; Rectifier bridge stack B1, carries out rectification to low voltage voltage; Filter capacitor C1, carries out filtering to voltage; Three-terminal voltage-stabilizing circuit Q3(7812), for the 12V direct voltage of stable output, the power supply of this voltage more after filtering as attemperating unit 100 after electric capacity C2 filtering exports.
Temperature measurement module comprises thermistor R5 and the regulating resistor R1 of series connection.Wherein, thermistor R5 is arranged on heat-conducting substrate, for detecting the working temperature of heat-conducting substrate.Such as can adopt negative temperature coefficient (NTC) thermistor R5, its resistance raises with temperature and reduces.Thermistor R5 is connected with an input of the first voltage comparison unit 121 and the second voltage comparison unit 122 respectively with the common port of regulating resistor R1; The other end of thermistor R5 is connected with power supply, and this power supply is the power supply of above-mentioned attemperating unit 100; And the other end ground connection of regulating resistor R1.In the present arrangement, when the resistance of thermistor R5 changes along with the temperature of heat-conducting substrate, the electrical potential difference (i.e. the voltage of common port) being carried in regulating resistor R1 two ends also changes thereupon.Such as, when the resistance of thermistor R5 reduces with the rising of the temperature of heat-conducting substrate, the electrical potential difference (i.e. the voltage of common port) being carried in regulating resistor R1 two ends increases.Now, the voltage signal that this common port exports is thermometric voltage signal, and the voltage of common port is thermometric voltage.
First voltage comparison unit 121 is the first operational amplifier 1, second voltage comparison unit 122 is the second operational amplifier 2; Wherein, the first operational amplifier 1 and the second operational amplifier 2 such as can be LM358 type operational amplifier.Thermistor R5 is connected with the in-phase input end of the first operational amplifier and the second operational amplifier respectively with the common port of regulating resistor R1; The inverting input of the first operational amplifier is connected with the first reference voltage unit 131; The inverting input of the second operational amplifier is connected with the second reference voltage unit 132.
To adopt negative temperature coefficient (NTC) thermistor R5, now the first reference voltage is less than the second reference voltage, and the first threshold temperature of the heat-conducting substrate that namely the first reference voltage is corresponding is lower than Second Threshold temperature corresponding to the second reference voltage.In concrete operations, when the current operating temperature of heat-conducting substrate is a little more than (time such as higher than 1 DEG C) during first threshold temperature, the voltage (thermometric voltage) of the in-phase input end of the first operational amplifier is higher than the voltage (the first reference voltage) of inverting input, first operational amplifier exports high level, this high level is the enable signal opening Inner eycle, and Inner eycle starts.When Inner eycle makes the current operating temperature of heat-conducting substrate drop to below first threshold temperature, the voltage (thermometric voltage) of the in-phase input end of the first operational amplifier is lower than the voltage (the first reference voltage) of inverting input, first operational amplifier output low level, this low level is the enable signal of closing Inner eycle, and Inner eycle terminates.If the current operating temperature of heat-conducting substrate cannot be dropped to below first threshold temperature by Inner eycle, the temperature of heat-conducting substrate continues to rise, and rise to a little more than (time such as higher than 1 DEG C) during Second Threshold temperature, the voltage (thermometric voltage) of the in-phase input end of the second operational amplifier is higher than the voltage (the second reference voltage) of inverting input, second operational amplifier exports high level, this high level is the enable signal opening outer circulation, outer circulation starts, and lowers the temperature by introducing extraneous cold water.When outer circulation makes the current operating temperature of heat-conducting substrate drop to below Second Threshold temperature, the voltage (thermometric voltage) of the in-phase input end of the second operational amplifier is lower than the voltage (the second reference voltage) of inverting input, second operational amplifier output low level, this low level is the enable signal of closing outer circulation, and outer circulation terminates.Other cyclic process by that analogy.
First reference voltage unit 131 and the second reference voltage unit 132 such as can be regulated power supply, pre-set output voltage values respectively according to first threshold temperature and Second Threshold temperature.Alternatively, in the example shown in Fig. 3, the first reference voltage unit 131 comprises the first divider resistance R3 and the second divider resistance R2 of series connection; Wherein, first divider resistance R3 is connected with the inverting input of the first operational amplifier with the common port of the second divider resistance R2, the other end of the first divider resistance R3 is connected with the output of power supply (power supply of above-mentioned attemperating unit 100), the other end ground connection of the second divider resistance R2.Second reference voltage unit 132 comprises the 3rd divider resistance R6 and the 4th divider resistance R7 of series connection; Wherein, 3rd divider resistance R6 is connected with the inverting input of the second operational amplifier with the common port of the 4th divider resistance R7, the other end of the 3rd divider resistance R6 is connected with power supply (power supply of above-mentioned attemperating unit 100), the other end ground connection of the 4th divider resistance R7.As can be seen from the above, by regulating the first divider resistance R3 and the relative resistance of the second divider resistance R2, the voltage that the common port of the first divider resistance R3 and the second divider resistance R2 exports can be regulated, i.e. the output voltage of the first reference voltage unit 131.Second reference voltage unit is similar.
First switch element 141 comprises the first field-effect transistor Q1 and the first relay coil; Wherein, the grid of the first field-effect transistor Q1 is connected with the output of the first operational amplifier 1, the drain electrode of the first field-effect transistor Q1 is connected with one end of the coil K11 of the first relay coil, the source electrode of the first field-effect transistor Q1 be connected electric capacity C3 between grid and source electrode also ground connection; The other end of the coil K11 of the first relay coil connects the moving contact of the first relay, the normally opened contact of the first relay is connected with the electromagnetically operated valve 210 of water circulation automatic heat radiator 200, by controlling the conducting of power supply (being the power supply of attemperating unit 100) and electromagnetically operated valve 210 herein or turning off the inner cyclic process of opening or closing water circulation automatic heat radiator 200.
Second switch unit 142 is for comprising the second field-effect transistor Q2 and the second relay coil; Wherein, the grid of the second field-effect transistor Q2 is connected with the output of the second operational amplifier 2, the drain electrode of the second field-effect transistor Q2 is connected with one end of the coil K12 of the second relay coil, the source electrode of the second field-effect transistor Q2 be connected electric capacity C4 between grid and source electrode also ground connection; The normally opened contact of the second relay coil is connected with the water pump 220 of water circulation automatic heat radiator 200, by controlling the conducting of external power supply and water pump 220 or turning off the outer loop process of opening or closing water circulation automatic heat radiator 200.
To adopt negative temperature coefficient (NTC) thermistor R5, the first and second voltage comparison units 122 for operational amplifier, when the first enable signal is high level, first field-effect transistor Q1 conducting, first relay coil energising, its normally opened contact K12 closes thereupon, electromagnetically operated valve 210 is connected, and Inner eycle starts.When the second enable signal is high level, the second field-effect transistor Q2 conducting, the second relay coil energising, its normally opened contact K22 closes thereupon, and external power supply connected by water pump 220, and outer circulation starts.
As can be seen from the above, in attemperating unit of the present invention, by the temperature transition of heat-conducting substrate is become voltage signal, and compare with predetermined reference voltage signal, thus result is opened or closed the water cycle process of water circulation automatic heat radiator based on the comparison, principle is simple, is easy to realize.Such as only need to adopt conventional resistance, thermistor, operational amplifier etc. to realize, cost is low.Circuit structure is simple in addition, and therefore operational reliability is high.In addition, attemperating unit of the present invention controls Inner eycle and the outer circulation of water circulation automatic heat radiator by combination, heat-conducting substrate can be controlled effectively in accurate temperature range, and this scope also can flexible as required, thus improve the precision of ageing test.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (9)
1. for an attemperating unit for water circulation automatic heat radiator, it is characterized in that, comprising:
Temperature measurement module, for detecting the temperature of water circulation automatic heat radiator, and becomes thermometric voltage signal by described temperature transition;
Reference voltage module, comprises the first reference voltage unit and the second reference voltage unit, and in order to export the first default reference voltage and the second reference voltage respectively, wherein said second reference voltage is different from described first reference voltage;
Voltage comparison module, comprises the first voltage comparison unit and the second voltage comparison unit; Two inputs of wherein said first voltage comparison unit are connected with described temperature measurement module and the first reference voltage unit respectively, to receive described thermometric voltage signal and described first reference voltage signal respectively; And by more described thermometric voltage signal and described reference voltage signal to generate the first enable signal; Two inputs of described second voltage comparison unit are connected with described temperature measurement module and the second reference voltage unit respectively, to receive described thermometric voltage signal and described second reference voltage signal respectively; And by more described thermometric voltage signal and described reference voltage signal to generate the second enable signal; And
Switch module, comprises the first switch element and second switch unit; Wherein said first switch element is connected to receive described first enable signal with the output of described first voltage comparison module, and opens based on described first enable signal or close the inner cyclic process of described water circulation automatic heat radiator; Described second switch unit is connected to receive described second enable signal with the output of described second voltage comparison module, and opens based on described second enable signal or close the outer loop process of described water circulation automatic heat radiator;
Described temperature measurement module comprises thermistor and the regulating resistor of series connection; Wherein,
The resistance of described thermistor reduces with the rising of the temperature of described water circulation automatic heat radiator;
Described thermistor is connected with an input of described first voltage comparison unit and described second voltage comparison unit respectively with the common port of described regulating resistor;
The other end of described thermistor is connected with power supply; And
The other end ground connection of described regulating resistor.
2. the attemperating unit for water circulation automatic heat radiator according to claim 1, is characterized in that, described first voltage comparison unit is the first operational amplifier; Described second voltage comparison unit is the second operational amplifier; Wherein,
Described thermistor is connected with the in-phase input end of described first operational amplifier and described second operational amplifier respectively with the common port of described regulating resistor;
The inverting input of described first operational amplifier is connected with described first reference voltage unit; The inverting input of described second operational amplifier is connected with described second reference voltage unit.
3. the attemperating unit for water circulation automatic heat radiator according to claim 2, is characterized in that, described first operational amplifier unit and described second operational amplifier unit are LM358 type operational amplifier.
4. the attemperating unit for water circulation automatic heat radiator according to claim 2, is characterized in that,
Described first reference voltage unit comprises the first divider resistance and second divider resistance of series connection; Wherein, described first divider resistance is connected with the inverting input of described first operational amplifier with the common port of described second divider resistance, and the other end of described first divider resistance is connected with described power supply, the other end ground connection of described second divider resistance;
Described second reference voltage unit comprises the 3rd divider resistance and the 4th divider resistance of series connection; Wherein, described 3rd divider resistance is connected with the inverting input of described second operational amplifier with the common port of described 4th divider resistance, and the other end of described 3rd divider resistance is connected with described power supply, the other end ground connection of described 4th divider resistance.
5. the attemperating unit for water circulation automatic heat radiator according to claim 2, is characterized in that, described first reference voltage unit and described second reference voltage unit are regulated power supply.
6. the attemperating unit for water circulation automatic heat radiator according to claim 2, is characterized in that,
Described first switch element is for comprising the first field-effect transistor and the first relay coil; Wherein, the grid of described first field-effect transistor is connected with the output of described first operational amplifier, and drain electrode is connected with the coil of described first relay coil, source ground; The normally opened contact of described first relay coil is connected with the electromagnetically operated valve of described water circulation automatic heat radiator, by controlling the conducting of described power supply and described electromagnetically operated valve or turning off to open or close the inner cyclic process of described water circulation automatic heat radiator;
Described second switch unit is for comprising the second field-effect transistor and the second relay coil; Wherein, the grid of described second field-effect transistor is connected with the output of described second operational amplifier, and drain electrode is connected with the coil of described second relay coil, source ground; The normally opened contact of described second relay coil is connected with the water pump of described water circulation automatic heat radiator, by controlling the conducting of external power supply and described water pump or turning off the outer loop process of opening or closing described water circulation automatic heat radiator.
7., for the water circulation automatic radiating system that light fixture is aging, it is characterized in that, comprising:
Water circulation automatic heat radiator, for dispelling the heat to described light fixture by water circulation; And
Attemperating unit described in any one of claim 1-6, opens for the temperature by detecting described water circulation automatic heat radiator or closes the water cycle process of described water circulation automatic heat radiator.
8. water circulation automatic radiating system according to claim 7, is characterized in that, described light fixture comprises heat-conducting substrate and is arranged on the light source on described heat-conducting substrate; Wherein,
Described heat-conducting substrate is arranged on described water circulation automatic heat radiator, to be dispelled the heat by described water circulation automatic heat radiator; And
The temperature measurement module of described attemperating unit is arranged on described heat-conducting substrate to detect the temperature of described heat-conducting substrate.
9. water circulation automatic radiating system according to claim 8, is characterized in that, described light source is great power LED.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201116711Y (en) * | 2007-11-27 | 2008-09-17 | 鹤山丽得电子实业有限公司 | Heat dispersion device for LED lamp |
| WO2009066585A1 (en) * | 2007-11-21 | 2009-05-28 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
| US7612506B1 (en) * | 2008-05-08 | 2009-11-03 | National Central University | Method for controlling light-emission of a light-emitting diode light source |
| CN101846246A (en) * | 2008-11-25 | 2010-09-29 | 斯坦雷电气株式会社 | Liquid cooled LED light |
| CN102013504A (en) * | 2010-11-05 | 2011-04-13 | 新源动力股份有限公司 | Test platform temperature control system and control method for proton exchange membrane fuel cell |
-
2012
- 2012-05-10 CN CN201210144940.9A patent/CN103391664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009066585A1 (en) * | 2007-11-21 | 2009-05-28 | Toyota Jidosha Kabushiki Kaisha | Fuel cell system |
| CN201116711Y (en) * | 2007-11-27 | 2008-09-17 | 鹤山丽得电子实业有限公司 | Heat dispersion device for LED lamp |
| US7612506B1 (en) * | 2008-05-08 | 2009-11-03 | National Central University | Method for controlling light-emission of a light-emitting diode light source |
| CN101846246A (en) * | 2008-11-25 | 2010-09-29 | 斯坦雷电气株式会社 | Liquid cooled LED light |
| CN102013504A (en) * | 2010-11-05 | 2011-04-13 | 新源动力股份有限公司 | Test platform temperature control system and control method for proton exchange membrane fuel cell |
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