CN104917400A - Constant voltage output direct current power supply applied to subway screen door - Google Patents
Constant voltage output direct current power supply applied to subway screen door Download PDFInfo
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- CN104917400A CN104917400A CN201510243183.4A CN201510243183A CN104917400A CN 104917400 A CN104917400 A CN 104917400A CN 201510243183 A CN201510243183 A CN 201510243183A CN 104917400 A CN104917400 A CN 104917400A
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- power supply
- module
- constant voltage
- direct current
- voltage
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Abstract
The invention discloses a constant voltage output direct current power supply applied to a subway screen door. The constant voltage output direct current power supply comprises an AC/DC switch power supply module, a constant voltage DC/DC module and a display module. The AC/DC switch power supply module comprises an efficient switch power supply circuit with a PFC function, converts input alternating current city power with the voltage from 95 to 265V to direct current voltage about DC12V, and outputs the direct current voltage. The input end of the AC/DC switch power supply module is connected with city power input. The output end is connected with the input end of the constant voltage DC/DC module. The output end of the constant voltage DC/DC module is connected with a direct current power supply output interface. The display module comprises a power supply power display circuit and a direct current power supply voltage display circuit. The display module can display the power supply voltage and the power supply power of the direct current power supply output interface. According to the constant voltage output direct current power supply applied to the subway screen door, which is provided by the invention, stable and constant voltage output is realized, and the power supply voltage and the power supply power of the direct current power supply output interface can be displayed.
Description
Technical field
The present invention relates to a kind of improvement of power supply of subway shield door, refer in particular to a kind of power supply stable output and the subway shield door of constant voltage with can constant voltage export DC power supply.
Background technology
The fail safe of subway is more and more paid attention to by people, and subway station inner shield door has been standard configuration equipment.How to make shield door normal operation, for subway, occupant escorts, and is subway equipment manufacturer urgent problem.The control of shield door needs stable power supply, at present, the fault of a lot of shield door all because power supply causes, for this reason, we have developed a kind of power supply stable output and the subway shield door of constant voltage with can the DC power supply that exports of constant voltage.
Summary of the invention
The present invention seeks in order to overcome the deficiencies in the prior art a kind of power supply stable output is provided and the subway shield door of constant voltage with can constant voltage export DC power supply.
For achieving the above object, the technical solution used in the present invention is: a kind of subway shield door, with can the DC power supply that exports of constant voltage, comprises AC/DC switch power module, constant voltage DC/DC module, display module; Described AC/DC switch power module is the efficient switch power circuit composition of band PFC function, the input of electric main 95-265V voltage is converted to the direct voltage output of about DC12V; The input of described AC/DC switch power module is connected with civil power input, and output is connected with the input of constant voltage DC/DC module; The output of described constant voltage DC/DC module is connected with DC power supply output interface; Described display module, comprises power display circuit, direct current power source voltage display circuit; Described display module can show supply voltage, the power at DC power supply output interface place.
Preferably, described subway shield door is with can the DC power supply that exports of constant voltage, and described display module also includes LED indicating circuit.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Subway shield door of the present invention is with can the DC power supply that exports of constant voltage stablizing and the output of constant voltage, meanwhile, at DC power supply output interface place energy display power supply voltage, power.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is subway shield door of the present invention with can the fundamental diagram of DC power supply that exports of constant voltage.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing 1 is subway shield door of the present invention with can the DC power supply that exports of constant voltage, comprises AC/DC switch power module, constant voltage DC/DC module, display module; Described AC/DC switch power module is the efficient switch power circuit composition of band PFC function, the input of electric main 95-265V voltage is converted to the direct voltage output of about DC12V; The input of described AC/DC switch power module is connected with civil power input interface, and output is connected with the input of constant voltage DC/DC module; The output of described constant voltage DC/DC module is connected with DC power supply output interface; Described display module, comprises power display circuit, direct current power source voltage display circuit; Described display module can show supply voltage, the power at DC power supply output interface place.
Described display module also includes LED indicating circuit; Described LED indicating circuit is used to refer to operating state; When subway shield door of the present invention with can constant voltage export DC power supply work time, LED indicating circuit controls corresponding LED light and lights; Otherwise then LED light is extinguished.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
Subway shield door of the present invention is with can the DC power supply that exports of constant voltage stablizing and the output of constant voltage, meanwhile, at DC power supply output interface place energy display power supply voltage, power.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (2)
1. subway shield door with can constant voltage export a DC power supply, comprise AC/DC switch power module, constant voltage DC/DC module, display module; It is characterized in that: described AC/DC switch power module is the efficient switch power circuit composition of band PFC function, the input of electric main 95-265V voltage is converted to the direct voltage output of about DC12V; The input of described AC/DC switch power module is connected with civil power input, and output is connected with the input of constant voltage DC/DC module; The output of described constant voltage DC/DC module is connected with DC power supply output interface; Described display module, comprises power display circuit, direct current power source voltage display circuit; Described display module can show supply voltage, the power at DC power supply output interface place.
2. subway shield door according to claim 1 is with can the DC power supply that exports of constant voltage, it is characterized in that: described display module also includes LED indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243183.4A CN104917400A (en) | 2015-05-13 | 2015-05-13 | Constant voltage output direct current power supply applied to subway screen door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243183.4A CN104917400A (en) | 2015-05-13 | 2015-05-13 | Constant voltage output direct current power supply applied to subway screen door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104917400A true CN104917400A (en) | 2015-09-16 |
Family
ID=54086184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510243183.4A Pending CN104917400A (en) | 2015-05-13 | 2015-05-13 | Constant voltage output direct current power supply applied to subway screen door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104917400A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168237A (en) * | 1994-12-15 | 1996-06-25 | Fujitsu Ltd | Stabilized direct-current power supply |
| CN102815229A (en) * | 2012-09-21 | 2012-12-12 | 中国人民解放军第三军医大学第三附属医院 | Intelligent power supply box for supplying electricity for vehicle-mounted precision equipment |
| CN103777670A (en) * | 2014-01-23 | 2014-05-07 | 苏州市职业大学 | Direct-current power supply with constant voltage or constant current output |
| CN203773394U (en) * | 2014-01-23 | 2014-08-13 | 苏州市职业大学 | Direct-current power source allowing constant voltage or constant current output |
| JP5604125B2 (en) * | 2010-01-29 | 2014-10-08 | 東芝テリー株式会社 | High frequency power supply |
-
2015
- 2015-05-13 CN CN201510243183.4A patent/CN104917400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168237A (en) * | 1994-12-15 | 1996-06-25 | Fujitsu Ltd | Stabilized direct-current power supply |
| JP5604125B2 (en) * | 2010-01-29 | 2014-10-08 | 東芝テリー株式会社 | High frequency power supply |
| CN102815229A (en) * | 2012-09-21 | 2012-12-12 | 中国人民解放军第三军医大学第三附属医院 | Intelligent power supply box for supplying electricity for vehicle-mounted precision equipment |
| CN103777670A (en) * | 2014-01-23 | 2014-05-07 | 苏州市职业大学 | Direct-current power supply with constant voltage or constant current output |
| CN203773394U (en) * | 2014-01-23 | 2014-08-13 | 苏州市职业大学 | Direct-current power source allowing constant voltage or constant current output |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |
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| RJ01 | Rejection of invention patent application after publication |