CN113629987A - LED screen electrical control system - Google Patents
LED screen electrical control system Download PDFInfo
- Publication number
- CN113629987A CN113629987A CN202110887167.4A CN202110887167A CN113629987A CN 113629987 A CN113629987 A CN 113629987A CN 202110887167 A CN202110887167 A CN 202110887167A CN 113629987 A CN113629987 A CN 113629987A
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- power supply
- diode
- led screen
- control system
- electrical control
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Abstract
The invention discloses an electrical control system of an LED screen, which comprises a plurality of box bodies, wherein a plurality of switch power supplies are arranged in each box body, the switch power supplies are connected in parallel to form a power supply circuit for supplying power to the LED screen, the power supply circuits of every two adjacent box bodies are connected in series, a time relay is connected in series between every two adjacent box bodies, and the power supply circuit is connected with the time relay. Compared with the prior art, the invention can avoid the problems that when the LED screen is lightened, all power modules of the whole screen are started at the same time, so that the cold start surge current is overlarge, and the electric cabinet is easy to trip.
Description
Technical Field
The invention relates to the technical field of LED screens, in particular to an electrical control system of an LED screen.
Background
As shown in fig. 1, currently, the lighting mode of the LED screen is to turn on the electric cabinet, and all power modules of the whole screen are turned on at the same time. The cold start surge current is too large, and the electric cabinet is easy to trip (the normal working current is 1.4A, and the surge current can reach 80A, so that the electric cabinet is tripped).
Disclosure of Invention
The invention mainly aims to provide an electrical control system of an LED screen, which aims to gradually lighten the LED screen, reduce the cold impact on a power grid and avoid the tripping of an electric cabinet caused by surge current.
In order to achieve the purpose, the invention provides an electrical control system of an LED screen, which comprises a plurality of box bodies, wherein a plurality of switch power supplies are arranged in each box body, the switch power supplies are connected in parallel to form a power supply circuit for supplying power to the LED screen, the power supply circuits of every two adjacent box bodies are connected in series, a time relay is connected in series between every two adjacent box bodies, and the power supply circuit is connected with the time relay.
The invention further adopts the technical scheme that a first diode D1 and a second diode D2 are connected in series between the power supply circuits of every two adjacent boxes, the former power supply circuit in the power supply circuits of the two adjacent boxes is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the cathode of the diode D2, the anode of the diode D2 is connected with the latter power supply circuit in the power supply circuits of the two adjacent boxes, and the time relays are respectively connected with the cathode of the diode D1 and the cathode of the diode D2.
The invention further adopts the technical scheme that a receiving card and an indicator light which are connected with the switch power supply are arranged in each box body.
The invention has the beneficial effects that: according to the technical scheme, the LED screen power supply device comprises a plurality of box bodies, wherein a plurality of switching power supplies are arranged in each box body, the switching power supplies are connected in parallel to form a power supply circuit for supplying power to the LED screen, the power supply circuits of every two adjacent box bodies are connected in series, a time relay is connected between every two adjacent box bodies in series, and the power supply circuits are connected with the time relay, so that the problems that when the LED screen is lightened, all power supply modules of the whole screen are started at the same time, so that cold starting surge current is overlarge, and an electric cabinet is easy to trip are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art electrical control system for an LED panel;
fig. 2 is a schematic structural diagram of a preferred embodiment of an electrical control system for an LED panel according to the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2, the present invention provides an electrical control system for an LED panel, in which a preferred embodiment of the electrical control system for an LED panel includes a plurality of box bodies, each of the box bodies has a plurality of switching power supplies, the switching power supplies are connected in parallel to form a power supply circuit for supplying power to the LED panel, the power supply circuits of each two adjacent box bodies are connected in series, a time relay is connected in series between each two adjacent box bodies, and the power supply circuit is connected to the time relay.
This embodiment is through a plurality of switching power supply parallel connection in every box, with every box series connection for a plurality of switching power supply in every box are for starting simultaneously, and the power between the box is for progressively starting, avoids when lighting the LED screen from this, and the cold start surge current that all power module of whole screen open and cause simultaneously time is too big, the problem of the easy trip of electric cabinet.
Further, in order to prevent the power supply circuits of two adjacent boxes from affecting each other, in this embodiment, a first diode D1 and a second diode D2 are connected in series between the power supply circuits of two adjacent boxes, a previous power supply circuit in the power supply circuits of two adjacent boxes is connected to the anode of the diode D1, the cathode of the diode D1 is connected to the cathode of the diode D2, the anode of the diode D2 is connected to a next power supply circuit in the power supply circuits of two adjacent boxes, and the time relays are respectively connected to the cathode of the diode D1 and the cathode of the diode D2.
In addition, in this embodiment, each box body is internally provided with a receiving card and an indicator light which are connected with the switching power supply.
The working principle of the present invention is explained below with reference to fig. 2.
As shown in fig. 2, there are three boxes in fig. 2, each of the boxes is provided with a plurality of parallel 5V switch power supplies, wherein, the plurality of parallel 5V switch power supplies in the first box are superior power supplies, the plurality of parallel 5V switch power supplies are started simultaneously, the plurality of parallel 5V switch power supplies in the second box are primary power supplies, and the plurality of parallel 5V switch power supplies in the third box are subordinate power supplies, because the superior power supplies, the primary power supplies and the subordinate power supplies are connected in series, and a time relay is connected in series between the boxes, the power supplies between the boxes are started step by step, thereby avoiding that when the LED screen is lighted, cold start surge current caused by that all power supply modules of the whole screen are started at the same time, the electric cabinet is easy to trip, and if the superior power supply fails, the subordinate power supplies can still be powered on, 5V weak current is introduced from the power supply of the current stage to the time relay, so that the normal work of the strong current is ensured.
Referring again to fig. 2, a diode D1 and a diode D2 are connected in series between the upper power supply and the lower power supply in opposite directions, and a diode D3 and a diode D4 are connected in series between the lower power supply and the upper power supply in opposite directions, so that weak current between the upper power supply and the lower power supply, and weak current between the lower power supply and the upper power supply are not affected by each other.
The invention has the beneficial effects that: according to the technical scheme, the LED screen power supply device comprises a plurality of box bodies, wherein a plurality of switching power supplies are arranged in each box body, the switching power supplies are connected in parallel to form a power supply circuit for supplying power to the LED screen, the power supply circuits of every two adjacent box bodies are connected in series, a time relay is connected between every two adjacent box bodies in series, and the power supply circuits are connected with the time relay, so that the problems that when the LED screen is lightened, all power supply modules of the whole screen are started at the same time, so that cold starting surge current is overlarge, and an electric cabinet is easy to trip are solved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The utility model provides a LED screen electrical control system, its characterized in that includes a plurality of boxes, is provided with a plurality of switching power supply in every box, a plurality of switching power supply parallelly connected constitute and are used for the power supply circuit for LED screen power supply, series connection between the power supply circuit of every two adjacent boxes, series connection time relay between every two adjacent boxes, just power supply circuit with time relay connects.
2. The LED screen electrical control system of claim 1, wherein a first diode D1 and a second diode D2 are connected in series between the power supply circuits of every two adjacent boxes, the former power supply circuit of the power supply circuits of the two adjacent boxes is connected with the anode of the diode D1, the cathode of the diode D1 is connected with the cathode of the diode D2, the anode of the diode D2 is connected with the latter power supply circuit of the power supply circuits of the two adjacent boxes, and the time relays are respectively connected with the cathode of the diode D1 and the cathode of the diode D2.
3. The LED screen electrical control system of claim 1 or 2, wherein a receiving card and an indicator light connected with the switching power supply are arranged in each box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887167.4A CN113629987A (en) | 2021-08-03 | 2021-08-03 | LED screen electrical control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887167.4A CN113629987A (en) | 2021-08-03 | 2021-08-03 | LED screen electrical control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113629987A true CN113629987A (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202110887167.4A Pending CN113629987A (en) | 2021-08-03 | 2021-08-03 | LED screen electrical control system |
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| CN (1) | CN113629987A (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB652807A (en) * | 1948-07-29 | 1951-05-02 | Benjamin Alexander Davis | Improvements in or relating to apparatus for providing fluorescent lighting in vehicles |
| US3846641A (en) * | 1972-09-22 | 1974-11-05 | Hochiki Co | Control system for a plurality of loads |
| KR950031673U (en) * | 1994-04-27 | 1995-11-22 | 삼성전자주식회사 | Multi-vision sequential initial power supply |
| JPH08154380A (en) * | 1994-11-29 | 1996-06-11 | Hitachi Ltd | Parallel power supply system |
| CN1967642A (en) * | 2005-11-19 | 2007-05-23 | 康佳集团股份有限公司 | LED display screen and its power supply system |
| CN102595681A (en) * | 2011-01-10 | 2012-07-18 | 原景科技股份有限公司 | Light emitting diode circuit having light emitting diode drive circuit and operating method thereof |
| CN203618196U (en) * | 2013-12-24 | 2014-05-28 | 深圳市达特照明股份有限公司 | Anti-surge circuit and integrated circuit comprising same |
| CN203882584U (en) * | 2014-06-05 | 2014-10-15 | 石家庄科航光电科技有限公司 | An LED display screen with a time sharing power-on control system |
| CN104393500A (en) * | 2014-12-01 | 2015-03-04 | 苏州立瓷电子技术有限公司 | Time division power supply system of LED display screen |
| CN104409976A (en) * | 2014-12-01 | 2015-03-11 | 苏州立瓷电子技术有限公司 | LED display screen power supply system |
| CN204314645U (en) * | 2014-12-28 | 2015-05-06 | 南阳医学高等专科学校 | A kind of low-voltage distribution system by screen break-make automaton |
| CN204598432U (en) * | 2015-05-23 | 2015-08-26 | 杭州铭利科技有限公司 | A kind of multistage startup LED |
| CN105739319A (en) * | 2016-04-14 | 2016-07-06 | 武汉百络优物联科技有限公司 | Randomly pasted panel controller |
| CN106997220A (en) * | 2017-03-29 | 2017-08-01 | 歌尔股份有限公司 | Delayed power circuit |
| CN107426856A (en) * | 2017-05-15 | 2017-12-01 | 深圳珈伟光伏照明股份有限公司 | A kind of courtyard landscape design illuminator and its delay driving circuit |
| CN207233362U (en) * | 2017-09-25 | 2018-04-13 | 深圳雷曼光电科技股份有限公司 | A kind of LED display power supply module, LED display control system and LED display |
| CN108054830A (en) * | 2018-01-02 | 2018-05-18 | 深圳市德彩光电有限公司 | A kind of LED box and LED display |
| CN109863662A (en) * | 2016-10-27 | 2019-06-07 | 株式会社丰田中央研究所 | Power supply device and control method for power supply device |
| CN110829839A (en) * | 2019-11-04 | 2020-02-21 | 湖南欧实电子科技有限公司 | Power supply control device and control apparatus |
| CN111130162A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply apparatus |
| CN111130165A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply device |
| CN211404010U (en) * | 2020-02-27 | 2020-09-01 | 薛云峰 | Built-in power distribution box of LED display screen |
| CN213093873U (en) * | 2020-03-20 | 2021-04-30 | 首钢京唐钢铁联合有限责任公司 | Redundant power supply system |
| CN216290665U (en) * | 2021-08-03 | 2022-04-12 | 深圳康显壹视界智能科技有限公司 | LED screen electrical control system |
-
2021
- 2021-08-03 CN CN202110887167.4A patent/CN113629987A/en active Pending
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB652807A (en) * | 1948-07-29 | 1951-05-02 | Benjamin Alexander Davis | Improvements in or relating to apparatus for providing fluorescent lighting in vehicles |
| US3846641A (en) * | 1972-09-22 | 1974-11-05 | Hochiki Co | Control system for a plurality of loads |
| KR950031673U (en) * | 1994-04-27 | 1995-11-22 | 삼성전자주식회사 | Multi-vision sequential initial power supply |
| JPH08154380A (en) * | 1994-11-29 | 1996-06-11 | Hitachi Ltd | Parallel power supply system |
| CN1967642A (en) * | 2005-11-19 | 2007-05-23 | 康佳集团股份有限公司 | LED display screen and its power supply system |
| CN102595681A (en) * | 2011-01-10 | 2012-07-18 | 原景科技股份有限公司 | Light emitting diode circuit having light emitting diode drive circuit and operating method thereof |
| CN203618196U (en) * | 2013-12-24 | 2014-05-28 | 深圳市达特照明股份有限公司 | Anti-surge circuit and integrated circuit comprising same |
| CN203882584U (en) * | 2014-06-05 | 2014-10-15 | 石家庄科航光电科技有限公司 | An LED display screen with a time sharing power-on control system |
| CN104393500A (en) * | 2014-12-01 | 2015-03-04 | 苏州立瓷电子技术有限公司 | Time division power supply system of LED display screen |
| CN104409976A (en) * | 2014-12-01 | 2015-03-11 | 苏州立瓷电子技术有限公司 | LED display screen power supply system |
| CN204314645U (en) * | 2014-12-28 | 2015-05-06 | 南阳医学高等专科学校 | A kind of low-voltage distribution system by screen break-make automaton |
| CN204598432U (en) * | 2015-05-23 | 2015-08-26 | 杭州铭利科技有限公司 | A kind of multistage startup LED |
| CN105739319A (en) * | 2016-04-14 | 2016-07-06 | 武汉百络优物联科技有限公司 | Randomly pasted panel controller |
| CN109863662A (en) * | 2016-10-27 | 2019-06-07 | 株式会社丰田中央研究所 | Power supply device and control method for power supply device |
| CN106997220A (en) * | 2017-03-29 | 2017-08-01 | 歌尔股份有限公司 | Delayed power circuit |
| CN107426856A (en) * | 2017-05-15 | 2017-12-01 | 深圳珈伟光伏照明股份有限公司 | A kind of courtyard landscape design illuminator and its delay driving circuit |
| CN207233362U (en) * | 2017-09-25 | 2018-04-13 | 深圳雷曼光电科技股份有限公司 | A kind of LED display power supply module, LED display control system and LED display |
| CN108054830A (en) * | 2018-01-02 | 2018-05-18 | 深圳市德彩光电有限公司 | A kind of LED box and LED display |
| CN111130162A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply apparatus |
| CN111130165A (en) * | 2018-10-31 | 2020-05-08 | 丰田自动车株式会社 | Power supply device |
| CN110829839A (en) * | 2019-11-04 | 2020-02-21 | 湖南欧实电子科技有限公司 | Power supply control device and control apparatus |
| CN211404010U (en) * | 2020-02-27 | 2020-09-01 | 薛云峰 | Built-in power distribution box of LED display screen |
| CN213093873U (en) * | 2020-03-20 | 2021-04-30 | 首钢京唐钢铁联合有限责任公司 | Redundant power supply system |
| CN216290665U (en) * | 2021-08-03 | 2022-04-12 | 深圳康显壹视界智能科技有限公司 | LED screen electrical control system |
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Address after: 518000 Area A, 22nd Floor, No. 28 South 12 Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Kangxianyi vision Intelligent Technology Co.,Ltd. Address before: 518000 Area A, 22nd Floor, No. 28 South 12 Road, Yuehai Street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN KANGJIA YISHIJING COMMERCIAL DISPLAY CO.,LTD. |
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