CN201017159Y - Digital light processing projection split-joint wall system - Google Patents
Digital light processing projection split-joint wall system Download PDFInfo
- Publication number
- CN201017159Y CN201017159Y CNU2007201188117U CN200720118811U CN201017159Y CN 201017159 Y CN201017159 Y CN 201017159Y CN U2007201188117 U CNU2007201188117 U CN U2007201188117U CN 200720118811 U CN200720118811 U CN 200720118811U CN 201017159 Y CN201017159 Y CN 201017159Y
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- switch
- power supply
- gauge tap
- projecting cell
- switching power
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- 230000003287 optical effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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Abstract
The utility model discloses a digital optical processing projection tiled display wall comprising a power system and n plus 1 projection units comprising switch power; the number n is an integer more than 1; the power system comprises a general power switch and n control switches equipped with a control end; the input ends of the switch powers of the projection units from the second one to the No. n plus 1 are separately connected with the input end of the first projection by the n control switches; the conjunction is connected with the power by the general power switch; the control end of one of the control switch is connected with the output end of the switch power of the first projection unit and the control ends of the left n minus 1 control switches are separately connected with the output ends of the switch powers of the projection units from the second one to the No. n plus 1. The utility model can reduce the surge current when the switch powers are turned on and simplify the operations of starting the projection units in turn.
Description
[technical field]
The utility model relates to digital light and handles projection combination system, particularly can realize the digital light processing projection combination system that projecting cell is opened successively automatically.
[background technology]
At present, known DLP (digital light processing) projection combination system is made up of signal processing system, electric power system, projecting cell, electric power system is made up of a total power switch, several independent power source switches, total power switch control independent power source switch, each independent power source switch control one or several projecting cells.Because when the Switching Power Supply in the projecting cell is opened; there is bigger surge current (often reaching tens amperes); if during DLP projection combination system boot all Switching Power Supplies are opened simultaneously; surge current can reach hundreds of even go up kiloampere; the harm of doing like this is: on the one hand electrical network is caused powerful impact; the harm power grid security; excessive on the other hand surge current is easy to total power switch and independent power source switch be burnt or cause trip protection, makes the DLP projection combination system can't operate as normal.For fear of excessive surge current, the step of start is usually: open total power switch earlier, open the switch-dividing power supply then one by one.Because each switch-dividing has been controlled several projecting cells, therefore still there is bigger surge current (the surge current sum of the Switching Power Supply of several projecting cells of switch-dividing control), surge current when only opening together than all Switching Power Supplies is little, but, this start mode complex operation, require Attended mode, be not easy to realize timed power on/off or remote control switch.
[summary of the invention]
The technical problems to be solved in the utility model provides digital light and handles projection combination system, and the surge current when reducing the Switching Power Supply unlatching has been simplified the operation that projecting cell is opened successively.
The technical solution of the utility model is:
Digital light is handled projection combination system, comprises electric power system and n+1 projecting cell that contains Switching Power Supply, and wherein, n is the integer more than or equal to 1;
Described electric power system comprises that 1 total power switch and n has the gauge tap of control end, the input end of the Switching Power Supply in the 2nd to n+1 projecting cell is connected by the input end of the Switching Power Supply in a described n gauge tap and the 1st projecting cell respectively, this tie point links to each other with power supply by described total power switch, wherein the control end of 1 gauge tap connects the output terminal of the Switching Power Supply in described the 1st projecting cell, and the control end of a surplus n-1 gauge tap connects the output terminal of appointing n-1 Switching Power Supply in the 2nd to n+1 the projecting cell respectively.
Described digital light is handled projection combination system, also comprises m independent power source switch, and described m independent power source switch is in parallel with m the gauge tap in the described n gauge tap respectively, and wherein, m is greater than zero and smaller or equal to n.
Described gauge tap is a relay.
The beneficial effects of the utility model are:
The Switching Power Supply of the utility model in the 1st projecting cell is directly with total power switch is connected, Switching Power Supply in all the other n projecting cell all is connected with total power switch by gauge tap respectively, at first controlling one of them gauge tap during Switching Power Supply working stability in the 1st projecting cell connects, make the Switching Power Supply and the power connection of another projecting cell, start one by one then, so just reduce the surge current that produces when projecting cell is opened, improved the reliability of digital light processing projection combination system; N independent power source switch is in parallel with a described n gauge tap respectively in the utility model, break down to control corresponding gauge tap the time in a certain Switching Power Supply like this, the independent power source switch that can answer by manual mode closed pair still can normally start system.
[description of drawings]
Fig. 1 is the circuit connection diagram of electric power system and projecting cell in the utility model.
[embodiment]
Digital light of the present utility model is handled projection combination system, comprises electric power system and n+1 projecting cell that contains Switching Power Supply, and wherein, n is the integer more than or equal to 1; Described electric power system comprises that 1 total power switch and n has the gauge tap of control end, the input end of the Switching Power Supply in the 2nd to n+1 projecting cell is connected by the input end of the Switching Power Supply in a described n gauge tap and the 1st projecting cell respectively, this tie point links to each other with power supply by described total power switch, wherein the control end of 1 gauge tap connects the output terminal of the Switching Power Supply in described the 1st projecting cell, and the control end of a surplus n-1 gauge tap connects the output terminal of appointing n-1 Switching Power Supply in the 2nd to n+1 the projecting cell respectively.
Described digital light is handled projection combination system, also comprises m independent power source switch, and described m independent power source switch is in parallel with m the gauge tap in the described n gauge tap respectively, and wherein, m is greater than zero and smaller or equal to n.
Be example with the relay below, principle of the present utility model further specified:
Fig. 1 is the circuit connection diagram of electric power system and projecting cell in the utility model.In the present embodiment, there is the individual projecting cell of n+1 (n 〉=1) in DLP projection combination system, there is Switching Power Supply T1 first projecting cell inside, there is Switching Power Supply T2 second projecting cell inside, by that analogy, there is Switching Power Supply T (n+1) n+1 projecting cell inside, and this electric power system comprises that n relay J 1 to Jn and n independent power source K switch 1 in parallel with the contact of relay J 1 to Jn respectively are to Kn.The a pair of dc output end of the first Switching Power Supply T1 is connected to the two ends of first relay J, 1 coil, and first relay J 1 is according to this output to dc output end, being electrically connected between control second switch power supply T2 and the AC power.By that analogy, be connected to the two ends of n relay J n coil, so that being electrically connected between control switching T (n+1) and the AC power from a pair of dc output end of n Switching Power Supply T (n).
When opening DLP projection combination system, at first open total power switch S1, the first Switching Power Supply T1 at first works, after its operate as normal (this moment, surge current was over and done with), output DC is pressed onto on the coil of first relay J 1,1 adhesive of first relay J, the closing of contact is connected the incoming line that exchanges between second switch power supply T2 and the AC power.By that analogy, have only n Switching Power Supply operate as normal after, the individual Switching Power Supply of T (n+1) just can be worked, like this, all Switching Power Supplies start successively, have avoided them to start at synchronization and have caused the surge current stack, and electrical network is impacted, causes the total power switch tripping operation even burns.When operate as normal, the 1st all should be in off-state to n independent power source K switch 1 to Kn, the effect of independent power source K switch 1 to Kn is: when the Switching Power Supply of a certain relay of control breaks down cisco unity malfunction, as long as open corresponding independent power source switch, still back one Switching Power Supply can be connected on the AC power, make it still can operate as normal, as: during the first Switching Power Supply T1 fault, can manual closing independent power source K switch 1, directly second switch power supply T2 is received on the AC power, T3 to T (n+1) still can normally be opened, guarantee that the 3rd projecting cell to a n+1 projecting cell can operate as normal; Here it is to be noted that independent power source K switch 1 to Kn can not insert yet, and can realize the purpose of this utility model equally.
In the above-described embodiments, the gauge tap of band control end is not limited to relay, can adopt other known dc controlled switch to connect Switching Power Supply and AC power equally, as photoelectricity coupled circuit, ghyristor circuit etc.And circuit connecting mode is not limited to form shown in Figure 1, when the surge current of single switch power supply is very little, can utilize a gauge tap to control a plurality of Switching Power Supplies respectively, to reach the purpose of faster open system.
It is emphasized that can be from any a pair of dc output end extraction voltage supply control circuit of Switching Power Supply, and this can also continue as the display screen power supply to dc output end simultaneously, that is to say that gauge tap do not monopolize a pair of direct current output port of Switching Power Supply.
Above-mentioned detailed description only is exemplary description, and those skilled in the art can design various embodiments according to different actual needs under the situation that does not break away from the scope and spirit that the utility model protects.
Claims (3)
1. digital light is handled projection combination system, comprises electric power system and n+1 projecting cell that contains Switching Power Supply, and wherein, n is the integer more than or equal to 1; It is characterized in that:
Described electric power system comprises that 1 total power switch and n has the gauge tap of control end, the input end of the Switching Power Supply in the 2nd to n+1 projecting cell is connected by the input end of the Switching Power Supply in a described n gauge tap and the 1st projecting cell respectively, this tie point links to each other with power supply by described total power switch, wherein the control end of 1 gauge tap connects the output terminal of the Switching Power Supply in described the 1st projecting cell, and the control end of a surplus n-1 gauge tap connects the output terminal of appointing n-1 Switching Power Supply in the 2nd to n+1 the projecting cell respectively.
2. digital light according to claim 1 is handled projection combination system, it is characterized in that: also comprise m independent power source switch, described m independent power source switch respectively with a described n gauge tap in appoint m gauge tap in parallel, wherein, m is greater than zero and smaller or equal to n.
3. digital light according to claim 1 and 2 is handled projection combination system, and it is characterized in that: described gauge tap is a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201188117U CN201017159Y (en) | 2007-03-05 | 2007-03-05 | Digital light processing projection split-joint wall system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201188117U CN201017159Y (en) | 2007-03-05 | 2007-03-05 | Digital light processing projection split-joint wall system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017159Y true CN201017159Y (en) | 2008-02-06 |
Family
ID=39057654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201188117U Expired - Fee Related CN201017159Y (en) | 2007-03-05 | 2007-03-05 | Digital light processing projection split-joint wall system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017159Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093718A (en) * | 2012-12-19 | 2013-05-08 | 广东威创视讯科技股份有限公司 | Tiled display system and power-supply method of the same |
| CN111314678A (en) * | 2018-12-12 | 2020-06-19 | 深圳光峰科技股份有限公司 | Power supply system |
-
2007
- 2007-03-05 CN CNU2007201188117U patent/CN201017159Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093718A (en) * | 2012-12-19 | 2013-05-08 | 广东威创视讯科技股份有限公司 | Tiled display system and power-supply method of the same |
| CN111314678A (en) * | 2018-12-12 | 2020-06-19 | 深圳光峰科技股份有限公司 | Power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20110305 |