CN202602971U - LED lamp with leakage protection function - Google Patents
LED lamp with leakage protection function Download PDFInfo
- Publication number
- CN202602971U CN202602971U CN 201220025089 CN201220025089U CN202602971U CN 202602971 U CN202602971 U CN 202602971U CN 201220025089 CN201220025089 CN 201220025089 CN 201220025089 U CN201220025089 U CN 201220025089U CN 202602971 U CN202602971 U CN 202602971U
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- Prior art keywords
- led lamp
- leakage protection
- protection module
- led
- leakage
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- 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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Abstract
Provided in the utility model is an LED lamp with leakage protection function. The LED lamp comprises an LED lamp body, a constant-current or constant-voltage control circuit and an LED display matrix, wherein the LED lamp body, the constant-current or constant-voltage control circuit and the LED display matrix are connected in a sequential order. The input terminal of the LED lamp is connected with an output terminal of a leakage protection module; and the input terminal of the leakage protection module is connected with a power supply of commercial power. The commercial power passes through the leakage protection module and then supplies power for an LED power supply system. As long as a leakage phenomenon of a metal radiator of an LED lamp or a leakage phenomenon of an LED lamp bead board occurs, the leakage protection module can play its role. And when a person touches the metal radiator or the lamp bead board and there is leakage channel between the human body and the earth, the leakage protection module cuts off the commercial power input power supply of the lamp rapidly in a few milliseconds, thereby ensuring the life security of the personnel.
Description
Technical field
The utility model relates to LED lamp technical field, particularly relates to the LED lamp of being with creepage protection function.
Background technology
Existing LED lamp, LED fluorescent lamp for example, the LED bulb lamp, the LED Down lamp, the LED shot-light, the LED street lamp, or the like various LED light fixtures, the drives principle that it adopts all adopts circuit structure as shown in Figure 1.The driving power module is built in the light fixture, because the LED lamp has all adopted metal as heat sink material, metal conducts electricity.At some in particular cases, because of factors such as short circuit or electric leakage cause metal heat sink band high-tension electricity, will produce the possibility that jeopardizes personal safety.The power drives that some LED lamp adopts is non-isolation scheme, and LED lamp pearl connects the high pressure civil power, under the situation that lamp outer casing breaks, outside LED lamp pearl is exposed to, the possibility that jeopardizes personal safety is just arranged.
The utility model content
In view of the easy the problems referred to above that the electric leakage accident takes place of existing LED light fixture, the applicant improves through research, and a kind of LED lamp with creepage protection function is provided, and guarantees personnel's life security through simple circuit configuration.
The technical scheme of the utility model is following:
The utility model provides a kind of LED lamp with creepage protection function; Comprise LED lamp, constant current or the constant-voltage control circuit and the LED display matrix that are linked in sequence; The input of said LED lamp is connected with the output of a leakage protection module, and the input of said leakage protection module is connected with mains supply.
The useful technique effect of the utility model is:
The utility model had increased a leakage protection module before the input of the mains supply of existing LED light fixture.Civil power is supplied power to the LED power-supply system through after the leakage protection module earlier again.No matter any reason, if the electric leakage of the metal heat sink of LED light fixture, or the electric leakage of LED lamp pearl plate, leakage protection module is promptly had an effect, when personnel's contacting metal radiator or lamp pearl plate, when between human body and the earth leak channel being arranged.Leakage protection module can be cut off the civil power input power supply of light fixture rapidly in several milliseconds, thereby guarantees personnel's life security.
Description of drawings
Fig. 1 is the drives schematic diagram of existing LED lamp.
Fig. 2 is the circuit theory diagrams of the utility model.
Embodiment
Further specify below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 2; The utility model comprises a leakage protection module 1; The input of leakage protection module 1 is connected with mains supply, and its output is connected with the input of LED lamp 2, the output of LED lamp be linked in sequence constant current or constant-voltage control circuit 3 and LED display matrix 4.
As shown in Figure 2, the utility model had increased leakage protection module 1 before the input of the mains supply of LED lamp 2.Civil power is supplied power to the LED power-supply system through after the leakage protection module 1 earlier again.No matter any reason, if the electric leakage of the metal heat sink of LED light fixture, or the electric leakage of LED lamp pearl plate, leakage protection module is promptly had an effect, when personnel's contacting metal radiator or lamp pearl plate, when between human body and the earth leak channel being arranged.Leakage protection module can be cut off the civil power input power supply of light fixture rapidly in several milliseconds, guarantee personnel's life security.
Above-described only is the preferred implementation of the utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite of the basic design that does not break away from the utility model, all should think to be included within the protection range of the utility model.
Claims (1)
1. LED lamp with creepage protection function; Comprise LED lamp (2), constant current or the constant-voltage control circuit (3) and the LED display matrix (4) that are linked in sequence; It is characterized in that: the input of said LED lamp (2) is connected with the output of a leakage protection module (1), and the input of said leakage protection module (1) is connected with mains supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220025089 CN202602971U (en) | 2012-01-19 | 2012-01-19 | LED lamp with leakage protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220025089 CN202602971U (en) | 2012-01-19 | 2012-01-19 | LED lamp with leakage protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602971U true CN202602971U (en) | 2012-12-12 |
Family
ID=47320475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220025089 Expired - Fee Related CN202602971U (en) | 2012-01-19 | 2012-01-19 | LED lamp with leakage protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-01-19 CN CN 201220025089 patent/CN202602971U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180119 |