CN107425504A - A kind of circuit structure of minute surface media screen - Google Patents
A kind of circuit structure of minute surface media screen Download PDFInfo
- Publication number
- CN107425504A CN107425504A CN201710426112.7A CN201710426112A CN107425504A CN 107425504 A CN107425504 A CN 107425504A CN 201710426112 A CN201710426112 A CN 201710426112A CN 107425504 A CN107425504 A CN 107425504A
- Authority
- CN
- China
- Prior art keywords
- media screen
- inputs
- transformer
- circuit structure
- minute surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
- H02H3/105—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions responsive to excess current and fault current to earth
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
Landscapes
- Fuses (AREA)
Abstract
The invention discloses a kind of circuit structure of minute surface media screen, including power supply, the live wire and zero line of power supply connect the L inputs and N inputs of earth leakage protective device respectively, the L output ends and N output ends of earth leakage protective device connect two inputs of transformer respectively, the upper output end of transformer connects the left end of total fuse, the right-hand member of total fuse connects the zero line of some Three-hole sockets, the L inputs of media screen and the left end of switch, the ground terminal of each Three-hole socket and the E inputs of media screen are connected with the ground wire of power supply, the right-hand member of switch connects the left end of some bulbs, the right-hand member of some bulbs is connected with the lower output end of the transformer, the lower output end of transformer is also associated with the zero line side of each Three-hole socket and the N inputs of media screen.The circuit structure of the present invention is simple, and power supply is connected by earth leakage protective device with media screen, improves the overload protection and short-circuit protection ability of circuit, it is higher to use security performance.
Description
Technical field
The present invention relates to media screen technical field, it particularly relates to a kind of circuit structure of minute surface media screen.
Background technology
At present, minute surface media screen is fitted with many places, for playing the information of correlation or playing advertisement, example
The minute surface media screen of such as railway station station ground is used for the Bus Schedules for playing passenger, in the washroom in part place
Minute surface media screen is installed, this kind of minute surface media screen is mainly used in playing advertising message, at present, the electricity of this kind of media screen
Line structure is complicated, and the overload protection and short-circuit protection function of circuit are weaker.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of circuit structure of minute surface media screen, energy
Enough overcome the above-mentioned deficiency of prior art.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of circuit structure of minute surface media screen, including power supply, the live wire and zero line of the power supply connect earth leakage protective respectively
The L inputs and N inputs of device, the L output ends and N output ends of the earth leakage protective device connect two inputs of transformer respectively
End, the upper output end of the transformer connect the left end of total fuse, and the right-hand member of total fuse connects some Three-hole sockets
Zero line, the L inputs of media screen and the left end of switch, the ground terminal of each Three-hole socket and media screen
E inputs are connected with the ground wire of power supply, and the right-hand member of the switch connects the left end of some bulbs, the right-hand member of some bulbs
It is connected with the lower output end of the transformer, the lower output end of the transformer is also associated with the zero line of each Three-hole socket
End and the N inputs of media screen.
Further, each described bulb is in series with a point of fuse.
Further, the outer box of the transformer are cans, and the interior wiring board of the transformer is fixed using insulated column.
Further, insulated waterproof layer, the outside of the insulated waterproof layer are arranged with outside the power line of the power supply
It is arranged with anti-bite flexible pipe.
Preferably, core number × standard section of the power line is 3 × 2.5mm2。
Further, insulation fire prevention flexible pipe is arranged with outside the media screen line of the media screen.
Preferably, core number × standard section of the media screen line is 2 × 1.5mm2。
Beneficial effects of the present invention：The circuit structure of the present invention is simple, and power supply passes through earth leakage protective device and media screen phase
Even, the overload protection and short-circuit protection ability of circuit are improved, it is higher to use security performance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of circuit diagram of the circuit structure of minute surface media screen described according to embodiments of the present invention；
In figure：1st, power supply；2nd, earth leakage protective device；3rd, transformer；4th, total fuse；5th, Three-hole socket；6th, media screen；7th, open
Close；8th, bulb；9th, fuse is divided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, belong to what the present invention protected
Scope.
As shown in figure 1, the circuit structure of described a kind of minute surface media screen, including power supply 1 according to embodiments of the present invention,
The live wire and zero line of the power supply 1 connect the L inputs and N inputs of earth leakage protective device 2, the L of the earth leakage protective device 2 respectively
Output end and N output ends connect two inputs of transformer 3 respectively, and the upper output end of the transformer 3 connects total fuse 4
Left end, the right-hand member of total fuse 4 connect the zero line of some Three-hole sockets 5, the L inputs of media screen 6 and switch 7
Left end, the ground wire of the ground terminal of each Three-hole socket 5 and the E inputs of media screen 6 with power supply 1 is connected, described
The right-hand member of switch 7 connects the left end of some bulbs 8, and the lower output end of the right-hand members of some bulbs 8 with the transformer 3 connects
Connect, the lower output end of the transformer 3 is also associated with the zero line side of each Three-hole socket 5 and the N inputs of media screen 6.
In one embodiment, each described bulb 8 is in series with a point of fuse 9.
In one embodiment, the outer box of the transformer 3 are cans, the interior wiring board of the transformer 3 use every
Fixed from post.
In one embodiment, insulated waterproof layer, the insulation fire prevention are arranged with outside the power line of the power supply 1
The outside of layer is arranged with anti-bite flexible pipe.
In one embodiment, core number × standard section of the power line is 3 × 2.5mm2。
In one embodiment, insulation fire prevention flexible pipe is arranged with outside the media screen line of the media screen 6.
In one embodiment, core number × standard section of the media screen line is 2 × 1.5mm2。
In order to facilitate understand the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned
Technical scheme is described in detail.
When specifically used, according to a kind of circuit structure of minute surface media screen of the present invention, including power supply, power supply
Live wire and zero line connect earth leakage protective device, transformer and total fuse respectively, earth leakage protective device is used to provide overload for circuit
Protection and short-circuit protection, earth leakage protective device have to leakage current test and the function of judging, sent out when leakage current is more than certain value
Go out leakage-current alarm signal；Transformer exports after supply voltage is changed into suitable media screen and the rated voltage of Three-hole socket
To media screen and Three-hole socket, total fuse is used to for circuit provide overload protection, when the electric current of circuit is increased to certain value,
Or electric wire heating it is excessive when, fuse itself fusing cut-out electric current, the output end connection Three-hole socket and matchmaker of total fuse
The respective input of body screen；The earth terminal of media screen and Three-hole socket is connected with ground wire, the output end of total fuse and
Some bulbs are also connected with by switch between the output end of transformer, each bulb is in series with a point of fuse, uses
In the fuse protection circuit when larger by the current value of bulb；Prevent in addition, the outer box of transformer do outer layer isolation using can
Shield, interior wiring board fix isolation outer box using insulated column, and the power line of power supply and the media screen line of media screen use state
The wire bushing of border standard, on the one hand the power line outside of power supply is cased with insulated waterproof layer and anti-bite flexible pipe can play in fire
The purpose of cable is protected, on the other hand can prevent mouse worm from biting and stinging the proper communication of bad circuit, the media screen of media screen
Insulation fire prevention flexible pipe is arranged with outside curtain line can play the purpose of protection internal wiring in fire.
In summary, circuit structure of the invention is simple, and power supply is connected by earth leakage protective device with media screen, is improved
The overload protection and short-circuit protection ability of circuit, it is higher to use security performance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (7)
1. a kind of circuit structure of minute surface media screen, including power supply（1）, it is characterised in that the power supply（1）Live wire and zero
Line connects earth leakage protective device respectively（2）L inputs and N inputs, the earth leakage protective device（2）L output ends and N output ends
Transformer is connected respectively（3）Two inputs, the transformer（3）Upper output end connect total fuse（4）Left end, it is described
Total fuse（4）Right-hand member connect some Three-hole sockets（5）Zero line, media screen（6）L inputs and switch（7）'s
Left end, each described Three-hole socket（5）Ground terminal and media screen（6）E inputs and power supply（1）Ground wire connect
Connect, the switch（7）Right-hand member connect some bulbs（8）Left end, some bulbs（8）Right-hand member with the transformer
（3）Lower output end connection, the transformer（3）Lower output end be also associated with each Three-hole socket（5）Zero line side and
Media screen（6）N inputs.
A kind of 2. circuit structure of minute surface media screen according to claim 1, it is characterised in that each described bulb
（8）It is in series with a point of fuse（9）.
A kind of 3. circuit structure of minute surface media screen according to claim 1, it is characterised in that the transformer（3）
Outer box be can, the transformer（3）Interior wiring board fixed using insulated column.
A kind of 4. circuit structure of minute surface media screen according to claim 1, it is characterised in that the power supply（1）'s
Insulated waterproof layer is arranged with outside power line, anti-bite flexible pipe is arranged with outside the insulated waterproof layer.
A kind of 5. circuit structure of minute surface media screen according to claim 4, it is characterised in that the core of the power line
Number × standard section is 3 × 2.5mm2。
A kind of 6. circuit structure of minute surface media screen according to claim 1, it is characterised in that the media screen
（6）Media screen line outside be arranged with insulation fire prevention flexible pipe.
A kind of 7. circuit structure of minute surface media screen according to claim 6, it is characterised in that the media screen line
Core number × standard section be 2 × 1.5mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426112.7A CN107425504A (en) | 2017-06-08 | 2017-06-08 | A kind of circuit structure of minute surface media screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426112.7A CN107425504A (en) | 2017-06-08 | 2017-06-08 | A kind of circuit structure of minute surface media screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107425504A true CN107425504A (en) | 2017-12-01 |
Family
ID=60428521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426112.7A Pending CN107425504A (en) | 2017-06-08 | 2017-06-08 | A kind of circuit structure of minute surface media screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107425504A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205743U (en) * | 1987-03-27 | 1988-02-17 | 陈志坚 | Protective device for domestic electrical equipment |
| CN202166673U (en) * | 2011-08-10 | 2012-03-14 | 邢台供电公司 | Experiment power box with voice alarm function |
| CN102568786A (en) * | 2010-12-09 | 2012-07-11 | 天津市斗星机械设备有限公司 | Smart transformer |
| CN102957100A (en) * | 2012-12-11 | 2013-03-06 | 衡水供电公司 | Power supply changeover box |
| CN204179400U (en) * | 2014-11-28 | 2015-02-25 | 金湖三木机械制造实业有限公司 | A kind of insert row with earth leakage protective device |
| CN204497013U (en) * | 2015-03-25 | 2015-07-22 | 上海大众祥源动力供应有限公司 | A kind of transformer heat radiation protection device that can save energy |
-
2017
- 2017-06-08 CN CN201710426112.7A patent/CN107425504A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205743U (en) * | 1987-03-27 | 1988-02-17 | 陈志坚 | Protective device for domestic electrical equipment |
| CN102568786A (en) * | 2010-12-09 | 2012-07-11 | 天津市斗星机械设备有限公司 | Smart transformer |
| CN202166673U (en) * | 2011-08-10 | 2012-03-14 | 邢台供电公司 | Experiment power box with voice alarm function |
| CN102957100A (en) * | 2012-12-11 | 2013-03-06 | 衡水供电公司 | Power supply changeover box |
| CN204179400U (en) * | 2014-11-28 | 2015-02-25 | 金湖三木机械制造实业有限公司 | A kind of insert row with earth leakage protective device |
| CN204497013U (en) * | 2015-03-25 | 2015-07-22 | 上海大众祥源动力供应有限公司 | A kind of transformer heat radiation protection device that can save energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2243477T3 (en) | PROCEDURE AND MECHANISM FOR THE CONDITIONING OF THE ELECTRICAL INSTALLATION OF BUILDINGS FOR A QUICK TRANSMISSION OF DATA. | |
| JP2008245202A (en) | Bridge circuit for power line carrier communication, and network system therefor | |
| BRPI0916897B1 (en) | DEVICE FOR DETERMINING A COMMON MODE SIGNAL ON A POWER LINE COMMUNICATION NETWORK | |
| CN107425504A (en) | A kind of circuit structure of minute surface media screen | |
| DE602004008636D1 (en) | Electric blanket | |
| CN202189667U (en) | Wall bushing of mutual inductor | |
| CN206774211U (en) | A kind of circuit structure of media screen | |
| CN201159525Y (en) | Electric shock-proof water storage type electric water heater | |
| JP2008061143A (en) | Power line communication system and power line communication method | |
| CN206564387U (en) | A kind of new type of plug power line | |
| US9588138B2 (en) | Electric base, electric gateway, and electric gateway body | |
| CN107068113A (en) | A kind of circuit structure of media screen | |
| CN205452939U (en) | Transformer protection architecture | |
| CN205679641U (en) | A kind of convertible auxiliary connection insulation board device for electrical test | |
| CN202604311U (en) | Helix type safe electric heating blanket without magnetic fields | |
| JP6632954B2 (en) | Grounding system | |
| US1303383A (en) | Lines | |
| CN206422023U (en) | High-voltage electric power system safeties | |
| CN207731683U (en) | A kind of flame-proof wire | |
| CN202094555U (en) | Temporary electrical connection device | |
| WO2024017243A1 (en) | Cable and electrical device using said cable | |
| CN207938560U (en) | Wire assembly and starter | |
| CN206657922U (en) | A kind of square earthing or grounding means of electric force pole tower | |
| JP2000266802A (en) | Testing method associated with d.c. current application on d.c. cable | |
| CN206685215U (en) | A kind of built-in sound and light alarm guy insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |