CN103369758B - Lamp protective circuit and device - Google Patents
Lamp protective circuit and device Download PDFInfo
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- CN103369758B CN103369758B CN201210093477.XA CN201210093477A CN103369758B CN 103369758 B CN103369758 B CN 103369758B CN 201210093477 A CN201210093477 A CN 201210093477A CN 103369758 B CN103369758 B CN 103369758B
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Abstract
A kind of lamp protective circuit; trigger module and switch module including the voltage output triggering signal of telecommunication for monitoring temperature sensitive module corresponding output when lamp temperatures and the temperature sensitive module of the exportable voltage varied with temperature, basis exceed predetermined value with lamp temperatures; the input of described trigger module is connected with the voltage output end of described temperature sensitive module; the outfan of described trigger module is connected with the control end of described switch module, and the triggering signal of telecommunication of described trigger module output triggers the described switch module described light fixture of control and quits work.Above-mentioned lamp protective circuit arranges temperature sensitive module monitors light fixture; its output voltage changes with the variations in temperature of light fixture; the magnitude of voltage that temperature sensitive module raises output with temperature becomes big to Zener diode reverse-conducting; the signal of telecommunication that triggers that trigger module is exported controls the switch of lamp power to trigger switch module; light fixture is made to quit work, it is achieved the too high protection of temperature.Additionally, also disclose a kind of light fixture protection device.
Description
Technical field
The present invention relates to light fixture protection field, particularly relate to a kind of lamp protective circuit and device.
Background technology
At present, along with the development of society's science and technology, the design and fabrication ability of light fixture is improving constantly, but light fixture
In use, the shortcoming of its heating or heat insulation aspect also fails to well solve, and special at some
Light fixture particular application, has strict demand to the temperature of light fixture, once occurs in that higher than the temperature set,
Then light fixture easily breaks down or directly damages and can not use.
Summary of the invention
Based on this, it is necessary to for the temperature of light fixture too high time, light fixture easily breaks down or directly damages
Problem, it is provided that a kind of protect the lamp protective circuit that is not damaged by of light fixture when temperature is too high.
Additionally, it is necessary to for the temperature of light fixture too high time, light fixture easily breaks down or directly damages
Problem, it is provided that a kind of light fixture protection device protecting light fixture to be not damaged by when temperature is too high.
A kind of lamp protective circuit, including for monitoring lamp temperatures and the exportable voltage varied with temperature
The voltage output of temperature sensitive module corresponding output when temperature sensitive module, basis exceed predetermined value with lamp temperatures triggers electricity
The trigger module of signal and switch module, the input of described trigger module is defeated with the voltage of described temperature sensitive module
Going out end to connect, the outfan of described trigger module is connected with the control end of described switch module, described trigger mode
The triggering signal of telecommunication of block output triggers the described switch module described light fixture of control and quits work；
The magnitude of voltage that described temperature sensitive module raises output with temperature becomes big, and described trigger module includes voltage stabilizing two pole
Pipe, the negative electrode of described Zener diode is connected with the voltage output end of described temperature sensitive module, described voltage stabilizing two pole
The anode of pipe electrically connects with the control end of described switch module, the magnitude of voltage of described Zener diode reverse-conducting
Magnitude of voltage less than the output of the temperature sensitive module correspondence when lamp temperatures exceedes predetermined value.
Wherein in an embodiment, described trigger module also include photoelectric coupling unit for promoting inhibition, divider resistance R1 and
Divider resistance R3, wherein,
The anode of described Zener diode is by the luminous source of described divider resistance R1 with described photoelectric coupling unit for promoting inhibition
Input connect, the output head grounding of the luminous source of described photoelectric coupling unit for promoting inhibition, described photoelectric coupling unit for promoting inhibition
The input of light-receiving device be connected with DC source by described divider resistance R3, described photoelectric coupling unit for promoting inhibition
The outfan of light-receiving device is connected with the control end of described switch module.
Wherein in an embodiment, described switch module includes switching tube Q2, earth resistance R2 and resistance
R4, wherein,
Described switching tube Q2 controls end as the input of switching tube Q2 described in the control end of described switch module
End is connected with DC source by described resistance R4, and the outfan of described switching tube Q2 is as described switching molding
The outfan of block passes through described earth resistance R2 ground connection.
Wherein in an embodiment, described switch module also includes switching tube Q1, resistance R5, resistance R6
And earth resistance R7, wherein,
Described switching tube Q1 controls end simultaneously by the outfan of described resistance R4 and described switching tube Q2
Connecting, be connected with DC source by described resistance R5, the input of described switching tube Q1 passes through described electricity
Resistance R6 is connected with described DC source, and the outfan of described switching tube Q1 is connect by described earth resistance R7
Ground.
Wherein in an embodiment, described switching tube Q1 is PNP type triode, and described switching tube Q2 is
NPN type triode.
Wherein in an embodiment, described temperature sensitive module is temperature sensitive chip.
A kind of light fixture protection device, including lamp protective circuit, described lamp protective circuit includes for monitoring
Lamp temperatures and the temperature sensitive module of the exportable voltage varied with temperature, according to exceeding predetermined value with lamp temperatures
The voltage output of Shi Wenmin module correspondence output triggers trigger module and switch module, the described triggering of the signal of telecommunication
The input of module is connected with the voltage output end of described temperature sensitive module, the outfan of described trigger module and institute
The control end stating switch module connects, and the triggering signal of telecommunication of described trigger module output triggers described switch module
Control described light fixture to quit work；
The magnitude of voltage that described temperature sensitive module raises output with temperature becomes big, and described trigger module includes voltage stabilizing two pole
Pipe, the negative electrode of described Zener diode is connected with the voltage output end of described temperature sensitive module, described voltage stabilizing two pole
The anode of pipe electrically connects with the control end of described switch module, the magnitude of voltage of described Zener diode reverse-conducting
Magnitude of voltage less than the output of the temperature sensitive module correspondence when lamp temperatures exceedes predetermined value.
Wherein in an embodiment, described trigger module also include photoelectric coupling unit for promoting inhibition, divider resistance R1 and
Divider resistance R3, wherein,
The anode of described Zener diode is by the luminous source of described divider resistance R1 with described photoelectric coupling unit for promoting inhibition
Input connect, the output head grounding of the luminous source of described photoelectric coupling unit for promoting inhibition, described photoelectric coupling unit for promoting inhibition
The input of light-receiving device be connected with DC source by described divider resistance R3, described photoelectric coupling unit for promoting inhibition
The outfan of light-receiving device is connected with the control end of described switch module.
Wherein in an embodiment, described switch module includes switching tube Q2, earth resistance R2 and resistance
R4, wherein,
Described switching tube Q2 controls end as the input of switching tube Q2 described in the control end of described switch module
End is connected with DC source by described resistance R4, and the outfan of described switching tube Q2 is as described switching molding
The outfan of block passes through described earth resistance R2 ground connection.
Wherein in an embodiment, described switch module also includes switching tube Q1, resistance R5, resistance R6
And earth resistance R7, wherein,
Described switching tube Q1 controls end simultaneously by the outfan of described resistance R4 and described switching tube Q2
Connecting, be connected with DC source by described resistance R5, the input of described switching tube Q1 passes through described electricity
Resistance R6 is connected with described DC source, and the outfan of described switching tube Q1 is connect by described earth resistance R7
Ground.
Wherein in an embodiment, described switching tube Q1 is PNP type triode, and described switching tube Q2 is
NPN type triode.
Above-mentioned lamp protective circuit arranges temperature sensitive module monitors light fixture, and its output voltage is with the variations in temperature of light fixture
And change, the magnitude of voltage that temperature sensitive module raises output with temperature becomes big to Zener diode reverse-conducting so that
The signal of telecommunication that triggers of trigger module output controls the switch of lamp power to trigger switch module, makes light fixture stop
Work, it is achieved the too high protection of temperature.Additionally, also disclose a kind of light fixture protection device.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the lamp protective circuit in a preferred embodiment；
Fig. 2 is the circuit theory diagrams of the lamp protective circuit in a preferred embodiment.
Detailed description of the invention
As it is shown in figure 1, be the lamp protective circuit of an embodiment.This lamp protective circuit includes: be used for supervising
Survey lamp temperatures and the temperature sensitive module 110 of the exportable voltage varied with temperature, according to exceeding pre-with lamp temperatures
During definite value, the voltage output of the corresponding output of temperature sensitive module 110 triggers trigger module 120 and the switching molding of the signal of telecommunication
Block 130, the input of trigger module 120 is connected with the voltage output end of temperature sensitive module 110, trigger module
The outfan of 120 is connected with the control end of switch module 130, and the triggering signal of telecommunication of trigger module 120 output touches
Send out switch module 130 to control light fixture and quit work.
Above-mentioned lamp protective circuit arranges temperature sensitive module 110 and monitors light fixture, and its output voltage becomes with the temperature of light fixture
Changing and change, temperature sensitive module 110 raises the magnitude of voltage of output with temperature and becomes and reversely lead to Zener diode Z1 greatly
It is logical so that trigger module 120 output triggers signal and controls the switch of lamp power to trigger switch module 130,
Light fixture is made to quit work, it is achieved the too high protection of temperature.
In the present embodiment, the magnitude of voltage that temperature sensitive module 110 raises output with temperature becomes big, temperature sensitive module 110
It it is the temperature sensitive chip of an output voltage variation with temperature.In other embodiments, temperature sensitive module 110 is also
Can be that temperature raises its output voltage and diminishes therewith.Additionally, temperature sensitive module 110 can also is that and includes positive temperature
The critesistor of degree coefficient, the resistance of critesistor increases with the rising of temperature, thus critesistor two ends
Voltage increase；Can also is that the critesistor of negative temperature coefficient, the resistance of critesistor is with the rising of temperature
And reduce, thus the voltage at critesistor two ends reduces, then the output voltage of temperature sensitive module 110 can be
The voltage at these critesistor two ends.
As in figure 2 it is shown, be the schematic diagram of the lamp protective circuit of an embodiment.
Trigger module 120 includes Zener diode Z1.The negative electrode of Zener diode Z1 and temperature sensitive module 110
Voltage output end connect, the anode of Zener diode Z1 electrically connects with the control end of switch module 130.Surely
The magnitude of voltage of pressure diode Z1 reverse-conducting is corresponding less than the temperature sensitive module 110 when lamp temperatures exceedes predetermined value
The magnitude of voltage of output.When the output voltage of temperature sensitive module 110 exceedes predetermined value, the conducting of Zener diode Z1
During voltage, Zener diode Z1 turns on so that switch module 130 works.
Further, trigger module 120 also includes photoelectric coupling unit for promoting inhibition 122.The anode of Zener diode Z1
It is connected by the input of divider resistance R1 with the luminous source of photoelectric coupling unit for promoting inhibition 122, photoelectric coupling unit for promoting inhibition 122
The output head grounding of luminous source, the input of the light-receiving device of photoelectric coupling unit for promoting inhibition 122 passes through divider resistance R3
It is connected with DC source Vcc, the outfan of the light-receiving device of photoelectric coupling unit for promoting inhibition 122 and switch module 130
Control end to connect.When the output voltage of temperature sensitive module 110 exceedes predetermined value, the electric conduction of Zener diode Z1
During pressure, Zener diode Z1 turns on, and photoelectric coupling unit for promoting inhibition 122 works, and luminous source is luminous, arrives light-receiving device
Conducting light intensity then light-receiving device conducting, light-receiving device the i.e. trigger module 120 of outfan outfan output touch
Send out the trigger voltage of switch module 130 work altogether.
If the impedance of Zener diode Z1 and photoelectric coupling unit for promoting inhibition 122 in actual applications with temperature sensitive module
The impedance matching of 110 then can omit divider resistance R1 and divider resistance R3.Divider resistance R1 and dividing potential drop electricity
Resistance R3 can replace with multiple resistance connection in series-parallel.
Photoelectric coupling unit for promoting inhibition 122 is photoelectrical coupler OPT1, be the media transmission signal of telecommunication with light a kind of electricity
-electro-optic detector part.Photoelectric coupling unit for promoting inhibition 122 includes controlling part and switch sections, i.e. luminous source and light
Device, both are assembled in same airtight housing, to each other with transparent insulator isolation.Implement at other
In example, photoelectric coupling unit for promoting inhibition 122 can be replaced with DC relay.Wherein, the coil of DC relay is made
Be equivalent to luminous source for control part and play control action, DC relay switch contact be equivalent to light-receiving device
Play on-off action.
Switch module 130 includes switching tube Q2, earth resistance R2 and resistance R4.
The end that controls of switching tube Q2 connects with the outfan of trigger module 120 as the control end of switch module 130
Connecing, the input of switching tube Q2 is connected with DC source Vcc by resistance R4, the output of switching tube Q2
Holding the outfan as switch module 130 by earth resistance R2 ground connection, the outfan of switch module 130 is
The node E that the outfan of switching tube Q2 is connected with resistance R2.The outfan of switch module 130 and light fixture
Switch controller (not shown) connects.After switching tube Q2 is switched on, can at its outfan output high level
For use as the on-off control to lamp power.In the present embodiment, switching tube Q2 is NPN type triode,
In other embodiments, switching tube Q2 can substitute with field-effect transistors or integrated circuit.
In a preferred embodiment, switch module 130 also include switching tube Q1, resistance R5, resistance R6 and
Earth resistance R7.
The end that controls of switching tube Q1 is connected by the outfan of resistance R4 and switching tube Q2, by electricity simultaneously
Resistance R5 is connected with DC source Vcc, and the input of switching tube Q1 is by resistance R6 and DC source Vcc
Connecting, the outfan of switching tube Q1 passes through earth resistance R7 ground connection.In the present embodiment, switching tube Q1
For PNP type triode, in other embodiments, switching tube Q1 can be with field-effect transistors or integrated
Circuit substitutes.It is appreciated that and meets trigger element 120 at switching tube Q1 and the watt level of switching tube Q2 own
Output voltage and DC source Vcc voltage in the case of, resistance R4, resistance R5, resistance R6 are permissible
Omit.Resistance R4, resistance R5, resistance R6 can also replace with several resistance connection in series-parallel.
A kind of light fixture protection device, including above-mentioned lamp protective circuit, described lamp protective circuit includes using
In monitoring lamp temperatures and the temperature sensitive module of the exportable voltage varied with temperature, according to exceeding with lamp temperatures
The voltage output of temperature sensitive module correspondence output during predetermined value triggers trigger module and switch module, the institute of the signal of telecommunication
The voltage output end of the input and described temperature sensitive module of stating trigger module is connected, the output of described trigger module
End is connected with the control end of described switch module, opens described in the triggering signal of telecommunication triggering of described trigger module output
Close the module described light fixture of control to quit work；
The magnitude of voltage that described temperature sensitive module raises output with temperature becomes big, and described trigger module includes voltage stabilizing two pole
Pipe, the negative electrode of described Zener diode is connected with the voltage output end of described temperature sensitive module, described voltage stabilizing two pole
The anode of pipe electrically connects with the control end of described switch module, the magnitude of voltage of described Zener diode reverse-conducting
Magnitude of voltage less than the output of the temperature sensitive module correspondence when lamp temperatures exceedes predetermined value.
Lamp protective circuit structure included by light fixture protection device as it has been described above, repeat no more here.
The operation principle of lamp protective circuit will be further described below.
When lamp temperatures superelevation, the output voltage of temperature sensitive module 110 raises, the voltage stabilizing two of trigger module 120
Pole pipe Z1, photoelectric coupling unit for promoting inhibition 122 sequentially turn on.Thereafter, the base stage of switching tube Q2 obtains conducting voltage
Lead so that the conducting of switching tube Q2, then the base voltage of switching tube Q1 reduces then relative to its emitter voltage
Being also switched on, DC source Vcc makes switching tube Q2 turn on all the time through resistance R6, switching tube Q1, resistance R4,
What switch module 130 output, light fixture switch controller (not shown) received is high level all the time, makes
Light fixture quits work, it is achieved that the too high protection of temperature of light fixture, and the circuit of the most whole light fixture is restarted, and temperature
After degree declines, light fixture just can be reworked.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (8)
1. a lamp protective circuit, it is characterised in that include for monitoring lamp temperatures and exportable with temperature
Temperature sensitive module corresponding output when the temperature sensitive module of the voltage of degree change, basis exceed predetermined value with lamp temperatures
Voltage output triggers trigger module and the switch module of the signal of telecommunication, the input of described trigger module and described temperature
The voltage output end of quick module connects, and the outfan of described trigger module connects with the control end of described switch module
Connecing, the triggering signal of telecommunication of described trigger module output triggers the described switch module described light fixture of control and quits work；
The magnitude of voltage that described temperature sensitive module raises output with temperature becomes big, and described trigger module includes voltage stabilizing two pole
Pipe, the negative electrode of described Zener diode is connected with the voltage output end of described temperature sensitive module, described voltage stabilizing two pole
The anode of pipe electrically connects with the control end of described switch module, the magnitude of voltage of described Zener diode reverse-conducting
Magnitude of voltage less than the output of the temperature sensitive module correspondence when lamp temperatures exceedes predetermined value；
Described trigger module also includes photoelectric coupling unit for promoting inhibition, divider resistance R1 and divider resistance R3, wherein,
The anode of described Zener diode is by the luminous source of described divider resistance R1 with described photoelectric coupling unit for promoting inhibition
Input connect, the output head grounding of the luminous source of described photoelectric coupling unit for promoting inhibition, described photoelectric coupling unit for promoting inhibition
The input of light-receiving device be connected with DC source by described divider resistance R3, described photoelectric coupling unit for promoting inhibition
The outfan of light-receiving device is connected with the control end of described switch module.
Lamp protective circuit the most according to claim 1, it is characterised in that described switch module includes
Switching tube Q2, earth resistance R2 and resistance R4, wherein,
Described switching tube Q2 controls end as the input of switching tube Q2 described in the control end of described switch module
End is connected with DC source by described resistance R4, and the outfan of described switching tube Q2 is as described switching molding
The outfan of block passes through described earth resistance R2 ground connection.
Lamp protective circuit the most according to claim 2, it is characterised in that described switch module also wraps
Include switching tube Q1, resistance R5, resistance R6 and earth resistance R7, wherein,
Described switching tube Q1 controls end simultaneously by the outfan of described resistance R4 and described switching tube Q2
Connecting, be connected with DC source by described resistance R5, the input of described switching tube Q1 passes through described electricity
Resistance R6 is connected with described DC source, and the outfan of described switching tube Q1 is connect by described earth resistance R7
Ground.
Lamp protective circuit the most according to claim 3, it is characterised in that described switching tube Q1 is
PNP type triode, described switching tube Q2 is NPN type triode.
5. a light fixture protection device, it is characterised in that include lamp protective circuit, described light fixture protection electricity
Road includes for monitoring lamp temperatures and temperature sensitive module, basis and the light fixture of the exportable voltage varied with temperature
Temperature exceedes trigger module and the switch of the voltage output triggering signal of telecommunication of temperature sensitive module correspondence output during predetermined value
Module, the input of described trigger module is connected with the voltage output end of described temperature sensitive module, described trigger mode
The outfan of block is connected with the control end of described switch module, and the triggering signal of telecommunication of described trigger module output touches
Send out switch module described and control described light fixture and quit work；
The magnitude of voltage that described temperature sensitive module raises output with temperature becomes big, and described trigger module includes voltage stabilizing two pole
Pipe, the negative electrode of described Zener diode is connected with the voltage output end of described temperature sensitive module, described voltage stabilizing two pole
The anode of pipe electrically connects with the control end of described switch module, the magnitude of voltage of described Zener diode reverse-conducting
Magnitude of voltage less than the output of the temperature sensitive module correspondence when lamp temperatures exceedes predetermined value；
Described trigger module also includes photoelectric coupling unit for promoting inhibition, divider resistance R1 and divider resistance R3, wherein,
The anode of described Zener diode is by the luminous source of described divider resistance R1 with described photoelectric coupling unit for promoting inhibition
Input connect, the output head grounding of the luminous source of described photoelectric coupling unit for promoting inhibition, described photoelectric coupling unit for promoting inhibition
The input of light-receiving device be connected with DC source by described divider resistance R3, described photoelectric coupling unit for promoting inhibition
The outfan of light-receiving device is connected with the control end of described switch module.
Light fixture protection device the most according to claim 5, it is characterised in that described switch module includes
Switching tube Q2, earth resistance R2 and resistance R4, wherein,
Described switching tube Q2 controls end as the input of switching tube Q2 described in the control end of described switch module
End is connected with DC source by described resistance R4, and the outfan of described switching tube Q2 is as described switching molding
The outfan of block passes through described earth resistance R2 ground connection.
Light fixture protection device the most according to claim 6, it is characterised in that described switch module also wraps
Include switching tube Q1, resistance R5, resistance R6 and earth resistance R7, wherein,
Described switching tube Q1 controls end simultaneously by the outfan of described resistance R4 and described switching tube Q2
Connecting, be connected with DC source by described resistance R5, the input of described switching tube Q1 passes through described electricity
Resistance R6 is connected with described DC source, and the outfan of described switching tube Q1 is connect by described earth resistance R7
Ground.
Light fixture protection device the most according to claim 7, it is characterised in that described switching tube Q1 is
PNP type triode, described switching tube Q2 is NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093477.XA CN103369758B (en) | 2012-03-31 | 2012-03-31 | Lamp protective circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093477.XA CN103369758B (en) | 2012-03-31 | 2012-03-31 | Lamp protective circuit and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103369758A CN103369758A (en) | 2013-10-23 |
| CN103369758B true CN103369758B (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210093477.XA Expired - Fee Related CN103369758B (en) | 2012-03-31 | 2012-03-31 | Lamp protective circuit and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106595B (en) * | 2018-10-26 | 2023-11-21 | 中兴通讯股份有限公司 | Over-temperature protection circuit, method and system of power supply |
| CN114326186B (en) * | 2021-12-22 | 2023-04-07 | 绵阳惠科光电科技有限公司 | Drive chip protection circuit, circuit board and display device |
| CN114743510A (en) * | 2022-04-02 | 2022-07-12 | 上海天马微电子有限公司 | Light-emitting panel and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248164Y (en) * | 2008-07-11 | 2009-05-27 | 西安超光电子科技有限公司 | Drive circuit for high-power LED street lamp |
| CN201805584U (en) * | 2009-09-29 | 2011-04-20 | 李云霄 | Piecewise transformation input LED light source driving circuit supplied with power by alternating-current power supply |
| JP2011165439A (en) * | 2010-02-08 | 2011-08-25 | Mitsubishi Electric Corp | Power supply device for light source and lighting system |
| CN202014395U (en) * | 2011-01-11 | 2011-10-19 | 天利半导体（深圳）有限公司 | Multichannel PWM (pulse-width modulation) driving chip LED (light-emitting diode) lamp driving time-sharing multiplex structure |
-
2012
- 2012-03-31 CN CN201210093477.XA patent/CN103369758B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201248164Y (en) * | 2008-07-11 | 2009-05-27 | 西安超光电子科技有限公司 | Drive circuit for high-power LED street lamp |
| CN201805584U (en) * | 2009-09-29 | 2011-04-20 | 李云霄 | Piecewise transformation input LED light source driving circuit supplied with power by alternating-current power supply |
| JP2011165439A (en) * | 2010-02-08 | 2011-08-25 | Mitsubishi Electric Corp | Power supply device for light source and lighting system |
| CN202014395U (en) * | 2011-01-11 | 2011-10-19 | 天利半导体（深圳）有限公司 | Multichannel PWM (pulse-width modulation) driving chip LED (light-emitting diode) lamp driving time-sharing multiplex structure |
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| CN103369758A (en) | 2013-10-23 |
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