CN103580279A - 24V uninterruptible power supply system for shadowless lamp or medical instrument bed - Google Patents
24V uninterruptible power supply system for shadowless lamp or medical instrument bed Download PDFInfo
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- CN103580279A CN103580279A CN201310568888.4A CN201310568888A CN103580279A CN 103580279 A CN103580279 A CN 103580279A CN 201310568888 A CN201310568888 A CN 201310568888A CN 103580279 A CN103580279 A CN 103580279A
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Abstract
The invention relates to a 24V uninterruptible power supply system for a shadowless lamp or a medical instrument bed. The system comprises a 220V input module, the 220V input module is connected with a transformer, the transformer is connected with a first rectifier filter module, a second rectifier filter module and a third rectifier filter module, the first rectifier filter module and the second rectifier filter module are both connected with a power supply automatic switching circuit module, the power supply automatic switching circuit module is connected with a 24V output module, the power supply automatic switching circuit module is further connected with a reserve power source used for providing power for the power supply automatic switching circuit module, the reserve power source is connected with an electric quantity detection circuit module, the electric quantity detection circuit module is connected with a power shortage alarm circuit module, the third rectifier filter module is connected with a current limiting circuit module, the current limiting circuit module is connected with a charging state display circuit module and a constant voltage circuit, and the constant voltage circuit is connected with the reserve power source. The system has the advantages of being simple in structure and stable in performance.
Description
Technical field
The present invention relates to a kind of electric supply system, the 24V uninterrupted power supply electric power system that particularly a kind of medical field is used.
Background technology
At present, the apparatus of the shadowless lamp that medical field is used and medicine equipment bed use generally adopts 24V uninterrupted power supply electric power system, existing 24V uninterrupted power supply electric power system is widely used, circuit form is different, properity is implicative of each other, be generally and reach good performance, circuit is all comparatively complicated.
Summary of the invention
The object of the invention is in order to overcome above deficiency, provide a kind of shadowless lamp of simple in structure, stable performance or 24V uninterrupted power supply electric power system for medicine equipment bed.
Object of the present invention is achieved through the following technical solutions: 24V uninterrupted power supply electric power system for a kind of shadowless lamp or medicine equipment bed, comprise 220V input module, 220V input module is connected with transformer, transformer is connected with the first rectification filtering module for main power source output, the second rectification filtering module and the 3rd rectification filtering module of exporting for charge circuit, the first rectification filtering module is all connected with power supply automatic switch-over circuit module with the second rectification filtering module, power supply automatic switch-over circuit module is connected with 24V output module, power supply automatic switch-over circuit module is also connected with the stand-by power supply that is used to its power supply, stand-by power supply is connected with electric quantity detecting circuit module, electric quantity detecting circuit module is connected with short of electricity warning circuit module, the 3rd rectification filtering module is connected with current-limiting circuit module, current-limiting circuit module is connected with charged state display circuit module and constant voltage circuit, constant voltage circuit is connected with stand-by power supply.
Further improvement of the present invention is: described 220V input module is delivered to transformer pressure-reducing by 220V civil power, civil power is exported 0V after transformer pressure-reducing, the voltage of 20V and 26V, the output of transformer 20V voltage is connected after the first rectification filtering module, voltage transition is direct current 24V, and the output of transformer 20V voltage connects the second rectification filtering module simultaneously, for power supply automatic switch-over circuit module provides power supply, the output of transformer 26V voltage connects the 3rd rectification filtering module, for stand-by power supply live part provides power supply, when having external power source, power supply automatic switch-over circuit module is in "on" position, the automatic switch-over circuit module of now powering and stand-by power supply disconnect, 24V output module is directly powered by civil power, when civil power without time, stand-by power supply provides power supply through the normally-closed contact of relay for 24V output module again through Backup Power Switch, electric quantity detecting circuit module is for detection of the voltage of described stand-by power supply, when the voltage of the voltage of stand-by power supply is less than or equal to 21V, shortcoming warning circuit module is sent chimes of doom, reminding user carries out storage battery charging, when battery voltage is lower, by current-limiting circuit module, can limit the electric current of charge circuit, prevent that charging current is excessive, thereby protection storage battery, and can observe by charged state display circuit module the performance of charging when charging, and can be by constant voltage circuit module, charging voltage is stable in charging process, effectively prevent the too high life-span that affects storage battery of charging voltage.
The present invention compared with prior art has the following advantages: when work, by relay, do not realize power supply, improved the stability of circuit, adopt the charging of current limliting manostatic technique, by charged in parallel status display circuit module in current-limiting circuit module, realize charged state indication, during charging, lamp is bright, while being full of, lamp goes out, and can in 0.2s, realize power down and switch fast, in battery voltage, be low to moderate 21V and send short of electricity chimes of doom, the ingenious utilization detection of this short of electricity warning circuit module and warning isolation technology, realize after power remove, when residual voltage disconnects relay, too low being unlikely to of electric weight reports to the police, short of electricity warning circuit module is not in the situation that main power source is opened, can not trigger buzzer, avoid like this equipment after need not shelving for a long time, electric weight accelerates to reduce.
accompanying drawing explanation:
Fig. 1 is the structural representation of invention;
Fig. 2 is circuit diagram of the present invention;
Number in the figure: 1-220V input module, 2-transformer, 3-the first rectification filtering module, 4-the second rectification filtering module, 5-the 3rd rectification filtering module, 6-power supply automatic switch-over circuit module, 7-stand-by power supply, 8-electric quantity detecting circuit module, 9-short of electricity warning circuit module, 10-current-limiting circuit module, 11-charged state display circuit module, 12-constant voltage circuit, 13-24V output module.
embodiment:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.
As Fig. 1 and Fig. 2 show the embodiment of 24V uninterrupted power supply electric power system for a kind of shadowless lamp of the present invention or medicine equipment bed, comprise 220V input module 1, 220V input module 1 is connected with transformer 2, transformer is connected with the first rectification filtering module 3 for main power source output, the second rectification filtering module 4 and the 3rd rectification filtering module 5 of exporting for charge circuit, the first rectification filtering module 3 is all connected with power supply automatic switch-over circuit module 6 with the second rectification filtering module 4, power supply automatic switch-over circuit module 6 is connected with 24V output module 13, power supply automatic switch-over circuit module 6 is also connected with the stand-by power supply 7 that is used to its power supply, stand-by power supply 7 is connected with electric quantity detecting circuit module 8, electric quantity detecting circuit module 8 is connected with short of electricity warning circuit module 9, the 3rd rectification filtering module 5 is connected with current-limiting circuit module 10, current-limiting circuit module 10 is connected with charged state display circuit module 11 and constant voltage circuit 12, constant voltage circuit 12 is connected with stand-by power supply 7.Uninterrupted power supply electric power system of the present invention is delivered to transformer 2 step-downs by 220V input module 1 by 220V civil power, civil power is exported 0V after transformer 2 step-downs, the voltage of 20V and 26V, the output of transformer 20V voltage is connected after the first rectification filtering module 3, voltage transition is direct current 24V, and the output of transformer 20V voltage connects the second rectification filtering module 4 simultaneously, for power supply automatic switch-over circuit module provides power supply, the output of transformer 26V voltage connects the 3rd rectification filtering module 5, for stand-by power supply live part provides power supply, when having external power source, power supply automatic switch-over circuit module 6 is in "on" position, the automatic switch-over circuit module of now powering 6 disconnects with stand-by power supply, 24V output module 13 is directly powered by civil power, when civil power without time, stand-by power supply 7 provides power supply through the normally-closed contact of relay for 24V output module 13 again through Backup Power Switch, described electric quantity detecting circuit module 8 is for detection of the voltage of described stand-by power supply 7, when the voltage of the voltage of stand-by power supply 7 is less than or equal to 21V, shortcoming warning circuit module 9 is sent chimes of doom, reminding user carries out storage battery charging, when battery voltage is lower, by current-limiting circuit module 10, can limit the electric current of charge circuit, prevent that charging current is excessive, thereby protection storage battery, and can observe by charged state display circuit module 11 performance of charging when charging, and can charging voltage be stabilized in to 26.5V by constant voltage circuit module 12 in charging process, effectively prevent the too high life-span that affects storage battery of charging voltage.
Specifically civil power is delivered to transformer 2 step-downs through 220V input module 1, then the input socket P3 of connecting circuit board holds: 220V input module 1 consists of electromagnetic interface filter, in order to improve the Electro Magnetic Compatibility of circuit, can effectively avoid the interference of external environment to this Circuits System, improve the stability of circuit, transformer 2 is R type tapped transformer, input 220V, output 0-20V-26V, wherein 20V end is after the first rectification filtering module 3, voltage is for becoming direct current 24V, the first rectification filtering module 3 is by D3, C3, C4, C5, C2 forms, wherein D3 is bridge rectifier, all the other several is filter capacitor, transformer 20V end connects the second rectification filtering module 4 simultaneously, for power supply automatic switch-over circuit module provides power supply, the second rectification filtering module 4 is by D10, C7 forms, D10 is halfwave rectifier, C7 is filtering, transformer 26V end connects the 3rd rectification filtering module 5, for stand-by power supply live part provides power supply, the 3rd rectification filtering module 5 is by D1, C1, C6 forms, D1 is halfwave rectifier, C1, C6 is filtering, power supply automatic switch-over circuit module 6 is by K1, D2 forms, when having external power source, relay is in "on" position, now 24V output and stand-by power supply disconnect, 24V output module 13 is 1 of P2 socket, 2 ends are output port, by civil power, directly powered, 3 of P2, 4 ends are Backup Power Switch, 5, 6 ends are in order to connect the storage battery of stand-by power supply 7, when civil power without time, relay electric-loss, stand-by power supply 7 provides power supply through the normally-closed contact of relay for exporting again through Backup Power Switch, electric weight detection module 8 is comprised of D5, D7, R7, Q2, short of electricity warning circuit module 9 is comprised of LS1, R6, Q7, D9, when stand-by power supply electric weight is during higher than 21V, and Q2 conducting, Q1 cut-off, buzzer no power now, and lower voltage is during to 21V, Q2 becomes cut-off from conducting, Q1 becomes conducting from cut-off, chimes of doom is sent in buzzer energising, and reminding user charging, prevents the too low shortening storage battery life-span of battery voltage, current-limiting circuit module 10 is by R3, U2 forms, when battery voltage is lower, can limit the electric current of charge circuit, prevent that charging current is excessive, thereby protection storage battery, P1, R2 is charged state display circuit module 11, P1 connecting luminous diode wherein, when charging, pressure drop on R3 and U2 enough makes light-emitting diode light, show that circuit charges, after being full of, pressure drop reduces, indicator light extinguishes, constant voltage circuit module 12 is by U1, D6, D8, R5 forms, this circuit can be stabilized in 26.5V by charging voltage, effectively prevent the too high life-span that affects storage battery of charging voltage, diode D4 provides positive charge for storage battery, prevent that its back discharge from damaging charge circuit.
Simple, the powerful and stable performance of the circuit structure of 24V uninterrupted power supply electric power system of the present invention: when main power source is powered, do not realize by relay, avoided the impact in relay contact life-span, when main power source dead electricity, because warning switching circuit adopts power supply separately, and filter capacitor is less, when output module voltage starts to reduce, realizes and switching fast, and switching time is in 0.2 second, circuit adopts the charging of current limliting manostatic technique, after battery is full of, carry out floating charge, after being full of completely, stop charging, even in the situation that long term power source is switched on, can there is not injury to storage battery yet, circuit has also been equipped with charged state indication in addition, short of electricity is reported to the police and is indicated, during charging, lamp is bright, while being full of, lamp goes out, during brownout, send warning, the ingenious utilization detection of this warning circuit module and warning isolation technology, realization disconnects at stand-by power supply, main power source closes has no progeny, too low being unlikely to of output voltage electric weight reports to the police, and in the situation that Backup Power Switch is not opened, can not trigger buzzer, avoid like this equipment after need not shelving for a long time, electric weight is not enough, report to the police and situation that nobody is careful under electric weight accelerate to reduce.
Claims (2)
1. 24V uninterrupted power supply electric power system for a shadowless lamp or medicine equipment bed, comprise 220V input module (1), described 220V input module (1) is connected with transformer (2), described transformer is connected with the first rectification filtering module (3) for main power source output, the second rectification filtering module (4) and the 3rd rectification filtering module (5) of exporting for charge circuit, described the first rectification filtering module (3) is all connected with power supply automatic switch-over circuit module (6) with described the second rectification filtering module (4), described power supply automatic switch-over circuit module (6) is connected with 24V output module (13), described power supply automatic switch-over circuit module (6) is also connected with the stand-by power supply (7) that is used to its power supply, described stand-by power supply (7) is connected with electric quantity detecting circuit module (8), described electric quantity detecting circuit module (8) is connected with short of electricity warning circuit module (9), described the 3rd rectification filtering module (5) is connected with current-limiting circuit module (10), described current-limiting circuit module (10) is connected with charged state display circuit module (11) and constant voltage circuit (12), described constant voltage circuit (12) is connected with described stand-by power supply (7).
2. 24V uninterrupted power supply electric power system for shadowless lamp or medicine equipment bed according to claim 1, it is characterized in that: described 220V input module (1) is delivered to transformer (2) step-down by 220V civil power, civil power is exported 0V after transformer (2) step-down, the voltage of 20V and 26V, the output of transformer 20V voltage is connected after the first rectification filtering module (3), voltage transition is direct current 24V, and the output of transformer 20V voltage connects the second rectification filtering module (4) simultaneously, for power supply automatic switch-over circuit module provides power supply, the output of transformer 26V voltage connects the 3rd rectification filtering module (5), for stand-by power supply live part provides power supply, when having external power source, power supply automatic switch-over circuit module (6) is in "on" position, the automatic switch-over circuit module of now powering (6) disconnects with stand-by power supply, 24V output module (13) is directly powered by civil power, when civil power without time, stand-by power supply (7) is that 24V output module (13) provides power supply through the normally-closed contact of relay through Backup Power Switch again, described electric quantity detecting circuit module (8) is for detection of the voltage of described stand-by power supply (7), when the voltage of the voltage of described stand-by power supply (7) is less than or equal to 21V, shortcoming warning circuit module (9) is sent chimes of doom, reminding user carries out storage battery charging, when battery voltage is lower, by current-limiting circuit module (10), can limit the electric current of charge circuit, prevent that charging current is excessive, thereby protection storage battery, and can observe by charged state display circuit module (11) performance of charging when charging, and can be by constant voltage circuit module (12), charging voltage is stable in charging process, effectively prevent the too high life-span that affects storage battery of charging voltage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310568888.4A CN103580279A (en) | 2013-11-15 | 2013-11-15 | 24V uninterruptible power supply system for shadowless lamp or medical instrument bed |
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| CN201310568888.4A CN103580279A (en) | 2013-11-15 | 2013-11-15 | 24V uninterruptible power supply system for shadowless lamp or medical instrument bed |
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| CN103580279A true CN103580279A (en) | 2014-02-12 |
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| CN201310568888.4A Pending CN103580279A (en) | 2013-11-15 | 2013-11-15 | 24V uninterruptible power supply system for shadowless lamp or medical instrument bed |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158284A (en) * | 2014-08-16 | 2014-11-19 | 国网山西省电力公司信息通信分公司 | Electric power emergency wireless communication system |
| CN105042534A (en) * | 2015-07-20 | 2015-11-11 | 南通医疗器械有限公司 | Anti-fault operation shadowless lamp power supply system |
| CN110504739A (en) * | 2019-05-21 | 2019-11-26 | 许竞才 | A kind of B ultrasound mobile power source |
| CN111277039A (en) * | 2020-01-21 | 2020-06-12 | 南京迈瑞生物医疗电子有限公司 | Power management method and power system of operating room equipment, operating lamp and operating table |
| CN111614163A (en) * | 2020-05-27 | 2020-09-01 | 四川恒鸿电力建设有限公司 | Distribution lines safety control system |
| CN116683617A (en) * | 2023-06-16 | 2023-09-01 | 上海勘测设计研究院有限公司 | Small reservoir field device safe power supply system and safe power supply method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102577U (en) * | 1991-09-25 | 1992-04-22 | 孙明 | Non-interval power source supply device |
| CN202513666U (en) * | 2012-03-22 | 2012-10-31 | 冒国彬 | Medical equipment with uninterruptible power supply |
-
2013
- 2013-11-15 CN CN201310568888.4A patent/CN103580279A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2102577U (en) * | 1991-09-25 | 1992-04-22 | 孙明 | Non-interval power source supply device |
| CN202513666U (en) * | 2012-03-22 | 2012-10-31 | 冒国彬 | Medical equipment with uninterruptible power supply |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158284A (en) * | 2014-08-16 | 2014-11-19 | 国网山西省电力公司信息通信分公司 | Electric power emergency wireless communication system |
| CN105042534A (en) * | 2015-07-20 | 2015-11-11 | 南通医疗器械有限公司 | Anti-fault operation shadowless lamp power supply system |
| CN110504739A (en) * | 2019-05-21 | 2019-11-26 | 许竞才 | A kind of B ultrasound mobile power source |
| CN111277039A (en) * | 2020-01-21 | 2020-06-12 | 南京迈瑞生物医疗电子有限公司 | Power management method and power system of operating room equipment, operating lamp and operating table |
| CN111614163A (en) * | 2020-05-27 | 2020-09-01 | 四川恒鸿电力建设有限公司 | Distribution lines safety control system |
| CN116683617A (en) * | 2023-06-16 | 2023-09-01 | 上海勘测设计研究院有限公司 | Small reservoir field device safe power supply system and safe power supply method |
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Application publication date: 20140212 |