CN202917131U - Automatic power-off label plate - Google Patents
Automatic power-off label plate Download PDFInfo
- Publication number
- CN202917131U CN202917131U CN 201220487186 CN201220487186U CN202917131U CN 202917131 U CN202917131 U CN 202917131U CN 201220487186 CN201220487186 CN 201220487186 CN 201220487186 U CN201220487186 U CN 201220487186U CN 202917131 U CN202917131 U CN 202917131U
- Authority
- CN
- China
- Prior art keywords
- label plate
- led
- power supply
- sign board
- switch
- 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.)
- Expired - Fee Related
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- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Provided is an automatic power-off label plate. A closed loop circuit is formed by a power supply (1), a photoconductive resistor (2), a switch (3), a current-limiting resistor (4) and an electromagnet (5) through leads, an armature (6) is arranged below the electromagnet (5), a contact device (7) and the switch (3) are connected with a power supply loop circuit of a power supply (1) of a light-emitting diode (LED) label plate (8) in series, the LED label plate (8) is fixed on one face of a support (9). When light is insufficient at night, the photoconductive resistor (2) is located in a high resistance state, the armature (6) is contacted with the contact device (7), the loop circuit of the LED label plate (8) is located in a closed state, the power supply (1) is used for supplying power for the LED label plate (8), and the LED label plate (8) is lighted to light the label plate to enable people to clearly see contents on the label plate at night. A user does not need to manually control the switch to open and close, and consumption of the manpower resources is reduced. The automatic power-off label plate is low in cost, simple in structure, easy to popularize and saving in manpower.
Description
Technical field
The present invention relates to a kind of sign board, relate in particular to a kind of auto-breaking sign board.
Background technology
We often can see sign board miscellaneous in daily life; indicate that you are faster, seek more easily the destination; can see very clearly in the time of common sign board well lighted on daytime; but to evening sign board all can not find; let alone the literal on the sign board; although now a lot of sign boards have all adopted self-luminescent material, but the light peneration of self-luminescent material is relatively poor, can not well see clearly when distant again when night is rather dark.
Save electric power and prolonging service lives of lamps in order to reduce luminous license plate operational management cost and to improve the bright light rate, reaching, must be in the most rational time bright light, turn off the light.The bright light of existing luminous license plate, turn off the light and all adopt manual control, a large amount of human and material resources have been wasted, control mode simply falls behind, groups of people grasp relatively poor because of the accuracy to the time, can cause the switch lamp time is not to be exactly late in advance, bring many inconvenience for people's life, caused great puzzlement also for simultaneously control, the management work of sign board.
Summary of the invention
The present invention's purpose:A kind of auto-breaking sign board that changes existing behaviour in service is proposed.
In order to realize the invention described above purpose, intend adopting following technology:
The invention is characterized in: power supply, photoresistance, switch, current-limiting resistance, electromagnet form the closed-loop path by wire, the electromagnet below arranges armature, contact device and switch series are associated in the Power supply loop at LED sign board place, and the LED sign board is fixed in the one side of support.
Maximum characteristics of the present invention:
Daytime, photoresistance was in low resistance state when bright and clear, and armature is by electromagnetic actuation, and loop, LED sign board place is in off-state, and the LED sign board is not luminous, and people can watch sign board by natural lighting; Evening insufficient light condition under, photoresistance is in high-impedance state, armature contacts with contact device, loop, LED sign board place is in closure state, utilizes power supply to the power supply of LED sign board, and the LED sign board is lighted, illuminate sign board, so that the people at night also can see the content on the sign board clearly.Without the manual control switch on and off, reduced the consumption of human resources.The utility model is with low cost, and is simple in structure, promotes easily, and saves manpower.
Description of drawings
Fig. 1 is circuit diagram of the present invention, and Fig. 2 is structural representation of the present invention.
1: power supply; 2: photoresistance; 3: switch; 4: current-limiting resistance; 5: electromagnet; 6: armature; 7: contact device; The 8:LED sign board; 9: support.
Embodiment
The present invention is by power supply 1, photoresistance 2, and switch 3, current-limiting resistance 4, electromagnet 5, armature 6, contact device 7, LED sign board 8, support 9 forms.
Power supply 1, photoresistance 2, switch 3, current-limiting resistance 4, electromagnet 5 form the closed-loop path by wire, electromagnet 5 belows arrange armature 6, contact device 7 is connected in power supply 1 current supply circuit at LED sign board 8 places with switch 3, and LED sign board 8 is fixed in the one side of support 9.
Daytime, photoresistance 2 was in low resistance state when bright and clear, and armature 6 is by electromagnet 5 adhesives, and loop, LED sign board 8 place is in off-state, and LED sign board 8 is not luminous, and people can watch sign board by natural lighting; Evening insufficient light condition under, photoresistance 2 is in high-impedance state, armature 6 contacts with contact device 7, loop, LED sign board 8 place is in closure state, utilize power supply 1 to 8 power supplies of LED sign board, LED sign board 8 is lighted, and illuminates sign board, so that the people at night also can see the content on the sign board clearly.Without the manual control switch on and off, reduced the consumption of human resources.
Claims (1)
1. auto-breaking sign board, it is characterized in that: power supply (1), photoresistance (2), switch (3), current-limiting resistance (4), electromagnet (5) form the closed-loop path by wire, electromagnet (5) below arranges armature (6), contact device (7) is connected in power supply (1) current supply circuit at LED sign board (8) place with switch (3), and LED sign board (8) is fixed in the one side of support (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487186 CN202917131U (en) | 2012-09-24 | 2012-09-24 | Automatic power-off label plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487186 CN202917131U (en) | 2012-09-24 | 2012-09-24 | Automatic power-off label plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917131U true CN202917131U (en) | 2013-05-01 |
Family
ID=48165420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220487186 Expired - Fee Related CN202917131U (en) | 2012-09-24 | 2012-09-24 | Automatic power-off label plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010464A (en) * | 2017-11-29 | 2018-05-08 | 重庆工程职业技术学院 | For surveying and drawing the alarming device in operation |
-
2012
- 2012-09-24 CN CN 201220487186 patent/CN202917131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010464A (en) * | 2017-11-29 | 2018-05-08 | 重庆工程职业技术学院 | For surveying and drawing the alarming device in operation |
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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: 20130501 Termination date: 20130924 |