CN202872360U - LED power supply - Google Patents
LED power supply Download PDFInfo
- Publication number
- CN202872360U CN202872360U CN 201220525854 CN201220525854U CN202872360U CN 202872360 U CN202872360 U CN 202872360U CN 201220525854 CN201220525854 CN 201220525854 CN 201220525854 U CN201220525854 U CN 201220525854U CN 202872360 U CN202872360 U CN 202872360U
- Authority
- CN
- China
- Prior art keywords
- transient state
- power supply
- zinc oxide
- sensitive element
- bidirectional diode
- 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
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model is applicable to the field of LEDs. The utility model provides an LED power supply, and the power supply comprises a housing, a power supply connecting line and a circuit board, wherein the power supply connecting line is connected with the circuit board, the circuit is arranged inside the housing, the surface of the housing is provided with a plurality of radiating grooves, and the circuit board is also provided with an anti-impact circuit. The technical scheme provided by the LED power supply has the advantage of long service life.
Description
Technical field
The utility model belongs to the LED field, relates in particular to a kind of LED power supply.
Background technology
LED is as existing a kind of lighting apparatus, more and more be applied to the lighting field of life, the LED lighting circuit is generally operational in outdoor, and outdoor environment is generally very poor, for example be struck by lightning and high temperature, existing LED power supply can't adapt to the outdoor environment of thunderbolt and high temperature, causes the useful life of LED power supply short.
The utility model content
The purpose of this utility model is to provide a kind of LED power supply, and the LED lamp that is intended to solve prior art can't prevent from being struck by lightning and the problem of high temperature.
The utility model is achieved in that on the one hand, a kind of LED power supply, and described power supply comprises: shell, power supply line and circuit board, wherein the power supply line is connected with circuit board, and circuit board is arranged on enclosure, and the surface of shell is provided with a plurality of radiating grooves; Wherein this circuit board also is provided with anti-impact circuit, and described anti-impact circuit comprises:
Be provided with pressure-sensitive series circuit and transient state between the live wire L of power supply line and the zero line N and suppress series circuit; Wherein pressure-sensitive series circuit comprises: the first zinc oxide pressure-sensitive element MOV1, the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3; Wherein be connected between live wire L and the zero line N after the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3 series connection, the first zinc oxide pressure-sensitive element MOV1 is connected between live wire L and the zero line N; Transient state suppresses series circuit and comprises: the first transient state suppresses bidirectional diode TVS1, the second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses bidirectional diode TVS3; The second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses to be connected between live wire L and the zero line N after the bidirectional diode TVS3 series connection, and the first transient state suppresses bidirectional diode TVS1 and is connected between live wire L and the zero line N;
Described anti-impact circuit also comprises: live wire L and zero line N are serially connected with respectively the first inductance L 1 and the second inductance L 2; Ground connection behind the contact serial connection gas discharge tube GDT of the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3, the second transient state suppresses the contact ground connection of bidirectional diode TVS2 and the 3rd transient state inhibition bidirectional diode TVS3.
The utility model compared with prior art, beneficial effect is: because the technical solution of the utility model is included on the LED power panel and has increased anti-impact circuit, outer casing of power supply at LED etc. increases a plurality of radiating grooves to increase radiating effect, so having under the thunderbolt of preventing and the high temperature, it also can work the advantage of long service life.
Description of drawings
The external structure schematic diagram of the LED power supply that Fig. 1 provides for the utility model;
The internal structure schematic diagram of the LED power supply that Fig. 2 provides for the utility model;
The circuit diagram of the anti-impact circuit that Fig. 3 provides for the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides a kind of LED power supply, this structure comprises as shown in Figure 1, 2: shell 10, power supply line 30 and circuit board 20, and wherein power supply line 30 is connected with circuit board 20, circuit board 20 is arranged on shell 10 inside, and the surface of shell 10 is provided with a plurality of radiating grooves; Wherein this circuit board 20 also is provided with anti-impact circuit, and this circuit comprises as shown in Figure 3:
Be provided with pressure-sensitive series circuit and transient state between the live wire L of power supply line 30 and the zero line N and suppress series circuit; Wherein pressure-sensitive series circuit comprises: the first zinc oxide pressure-sensitive element MOV1, the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3; Wherein be connected between live wire L and the zero line N after the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3 series connection, the first zinc oxide pressure-sensitive element MOV1 is connected between live wire L and the zero line N; Transient state suppresses series circuit and comprises: the first transient state suppresses bidirectional diode TVS1, the second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses bidirectional diode TVS3; The second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses to be connected between live wire L and the zero line N after the bidirectional diode TVS3 series connection, and the first transient state suppresses bidirectional diode TVS1 and is connected between live wire L and the zero line N; Live wire L and leading N are serially connected with respectively the first inductance L 1 and the second inductance L 2; Ground connection behind the contact serial connection gas discharge tube GDT of the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3, the second transient state suppresses the contact ground connection of bidirectional diode TVS2 and the 3rd transient state inhibition bidirectional diode TVS3.
Because MOV is under the normal voltage condition; be equivalent to a small capacitor; when overvoltage condition appears in voltage (when thunderbolt occurring); the internal resistance of MOV sharply descends and rapidly conducting; its operating circuit increases several orders of magnitude, thereby has effectively protected other components and parts unlikely overvoltage in the power supply and damage.
The utility model compared with prior art, beneficial effect is: because the technical solution of the utility model is included on the LED power panel and has increased anti-impact circuit, increase a plurality of radiating grooves increasing radiating effect at the outer casing of power supply of LED etc., so it has under the thunderbolt of preventing and the high temperature also workable advantage.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (1)
1. a LED power supply is characterized in that, described power supply comprises: shell, power supply line and circuit board, and wherein the power supply line is connected with circuit board, and circuit board is arranged on enclosure, and the surface of shell is provided with a plurality of radiating grooves; Wherein this circuit board also is provided with anti-impact circuit, and described anti-impact circuit comprises:
Be provided with pressure-sensitive series circuit and transient state between the live wire L of power supply line and the zero line N and suppress series circuit; Wherein pressure-sensitive series circuit comprises: the first zinc oxide pressure-sensitive element MOV1, the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3; Wherein be connected between live wire L and the zero line N after the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3 series connection, the first zinc oxide pressure-sensitive element MOV1 is connected between live wire L and the zero line N; Transient state suppresses series circuit and comprises: the first transient state suppresses bidirectional diode TVS1, the second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses bidirectional diode TVS3; The second transient state suppresses bidirectional diode TVS2 and the 3rd transient state suppresses to be connected between live wire L and the zero line N after the bidirectional diode TVS3 series connection, and the first transient state suppresses bidirectional diode TVS1 and is connected between live wire L and the zero line N;
Described anti-impact circuit also comprises: live wire L and zero line N are serially connected with respectively the first inductance L 1 and the second inductance L 2; Ground connection behind the contact serial connection gas discharge tube GDT of the second zinc oxide pressure-sensitive element MOV2 and the 3rd zinc oxide pressure-sensitive element MOV3, the second transient state suppresses the contact ground connection of bidirectional diode TVS2 and the 3rd transient state inhibition bidirectional diode TVS3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525854 CN202872360U (en) | 2012-10-15 | 2012-10-15 | LED power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525854 CN202872360U (en) | 2012-10-15 | 2012-10-15 | LED power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872360U true CN202872360U (en) | 2013-04-10 |
Family
ID=48039049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525854 Expired - Fee Related CN202872360U (en) | 2012-10-15 | 2012-10-15 | LED power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243662A (en) * | 2021-11-01 | 2022-03-25 | 南方电网数字电网研究院有限公司 | VFTO anti-interference circuit and switching device |
-
2012
- 2012-10-15 CN CN 201220525854 patent/CN202872360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243662A (en) * | 2021-11-01 | 2022-03-25 | 南方电网数字电网研究院有限公司 | VFTO anti-interference circuit and switching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204089181U (en) | A kind of lightning surge protection circuit and LED drive power | |
| CN202197094U (en) | Power transmission line intelligent fault monitoring coupling power supply protective device | |
| CN201974448U (en) | Surge-prevention intelligent electrical measuring instrument | |
| CN203850830U (en) | Intelligent anti-thunder case | |
| CN204190381U (en) | A kind of antisurge interference prevention device based on power meter reading system | |
| CN202872360U (en) | LED power supply | |
| CN104302063A (en) | LED circuit | |
| CN201805590U (en) | LED street lamp and drive power circuit thereof | |
| CN202474848U (en) | Intelligent lightning protection guard circuit | |
| CN202550509U (en) | Lightning protection device for power supply | |
| CN203660528U (en) | An external-type LED street lamp lightning protection device and an LED street lamp | |
| CN202873114U (en) | LED lamp | |
| CN201628194U (en) | Electrostatic prevention LED lamp and light source | |
| CN203312793U (en) | Lightning protection board for optical receiver | |
| CN203839941U (en) | Two-wire system instrument surge protection circuit | |
| CN204347175U (en) | A kind of lightning current HF reject device with monitoring function | |
| CN202145515U (en) | Lightning protective socket | |
| CN204168554U (en) | A kind of LED circuit | |
| CN202799255U (en) | Light emitting diode (LED) series circuit | |
| CN202435027U (en) | Remote data transmission protecting circuit of singlechip input/output (IO) interface | |
| CN203734301U (en) | Power grid surge voltage protection circuit | |
| CN204271632U (en) | Outdoor lamp lightning arrester | |
| CN202949096U (en) | Power socket with overvoltage protection function | |
| CN220022328U (en) | Multi-level lightning-protection surge protection device for LED street lamp | |
| CN204167903U (en) | A kind of pluggable embedded signal lightning protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |