CN206673581U - A kind of LED street lamp arrester circuit for exempting from ground connection - Google Patents
A kind of LED street lamp arrester circuit for exempting from ground connection Download PDFInfo
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- CN206673581U CN206673581U CN201720171939.3U CN201720171939U CN206673581U CN 206673581 U CN206673581 U CN 206673581U CN 201720171939 U CN201720171939 U CN 201720171939U CN 206673581 U CN206673581 U CN 206673581U
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Abstract
The utility model discloses a kind of LED street lamp arrester circuit for exempting from ground connection, first piezo-resistance connects to form the first series arm with the first discharge tube, second piezo-resistance connects to form the second series arm with the second discharge tube, one end connection zero line of first Thermal Cutoffs, the other end of one end of first series arm and one end of the first inductance with the first Thermal Cutoffs is connected, one end of the other end of first series arm and the second inductance is all connected with zero line side, one end of the other end connection second temperature fuse of first inductance, the other end of one end of second series arm and one end of illuminating circuit with second temperature fuse is connected, the other end of second inductance, the other end of second series arm is connected with the other end of illuminating circuit.Circuit structure of the present utility model forms two-stage protection circuit, can greatly increase the life-span of product, be used in the case where earthed system can not be improved, and can substantially reduce the costs such as artificial, material.
Description
Technical field
Street lamp anti-thunder technical field is the utility model is related to, more particularly to a kind of LED street lamp arrester circuit for exempting from ground connection.
Background technology
The system installation of LED street lamp, usually because a variety of causes, can run into because installation site is more during construction
The higher road surface of soil resistivity, earth mat are extremely difficult to lightning protection code requirement, to accomplish that grounding resistance rate meets lightning protection specification mark
Alignment request is, it is necessary to pay the costs such as high artificial, material.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is that providing a kind of LED street lamp for exempting from ground connection prevents
Thunder device circuit, it can solve the problems, such as to be to overcome the too high and lightning-arrest cost of grounding resistance rate high in the prior art.
The purpose of this utility model is realized using following technical scheme：
A kind of LED street lamp arrester circuit for exempting from ground connection, including the first Thermal Cutoffs, second temperature fuse, first
Piezo-resistance, the second piezo-resistance, the first inductance, the second inductance, the first discharge tube, the second discharge tube and illuminating circuit；First
Piezo-resistance connects to form the first series arm with the first discharge tube, and the second piezo-resistance connects to form second with the second discharge tube
One end of series arm, one end connection zero line of the first Thermal Cutoffs, one end of the first series arm and the first inductance is equal
It is connected with the other end of the first Thermal Cutoffs, one end of the other end of the first series arm and the second inductance is all connected with zero line
End, one end of the other end connection second temperature fuse of the first inductance, one end of the second series arm and the one of illuminating circuit
The other end of end and second temperature fuse is all connected with positive pole output, the other end of the second inductance, second series arm
The other end of the other end and illuminating circuit is all connected with negative pole output.
Preferably, the illuminating circuit is a series arm, the series arm by a current-limiting resistance, a commutation diode and
One light emitting diode is in series.
Preferably, the current-limiting resistance, commutation diode and light emitting diode are sequentially connected.
Preferably, one end of first piezo-resistance is connected with the other end of the first Thermal Cutoffs, the first discharge tube
One end be connected with one end of the second inductance.
Preferably, one end of second piezo-resistance is connected with the other end of second temperature fuse, the second discharge tube
One end be connected with the other end of the second inductance.
Compared with prior art, the beneficial effects of the utility model are：
Circuit structure of the present utility model forms two-stage protection circuit, can greatly increase the life-span of product, preferably rise
To lightning protection protection effect, used in the case where earthed system can not be improved, the costs such as artificial, material can be substantially reduced.
Brief description of the drawings
Fig. 1 is circuit structure diagram of the present utility model.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further：
As shown in figure 1, the utility model provides a kind of LED street lamp arrester circuit for exempting from ground connection, it includes Temperature protection
Silk F1, Thermal Cutoffs F2, piezo-resistance MOV1, piezo-resistance MOV2, discharge tube GDT1, discharge tube GDT2, inductance L1, inductance
L2 and an illuminating circuit.Wherein, piezo-resistance MOV1 connects to form the first series arm with discharge tube GDT1, piezo-resistance MOV2
Connect to form the second series arm with discharge tube GDT2, Thermal Cutoffs F1 one end connection zero line L, the first series arm
The other end of one end and inductance L1 one end with Thermal Cutoffs F1 is connected, the other end of the first series arm and inductance L2's
One end is all connected with zero line side N, inductance L1 other end connection Thermal Cutoffs F2 one end, one end of the second series arm and hair
One end of optical circuit and the Thermal Cutoffs F2 other end are all connected with positive pole output Lout, the inductance L2 other end, second
The other end of series arm and the other end of illuminating circuit are all connected with negative pole output Nout.
Thermal Cutoffs F1, piezo-resistance MOV1 and discharge tube GDT1 composition first order protection circuits, Thermal Cutoffs F2,
Piezo-resistance MOV2 and discharge tube GDT2 composition second level protection circuits, first order protection circuit play prime lightning protection protection and made
With, second level protection circuit plays rear class lightning protection protective action, after prime is by surge pressure limiting, some thunder stream electric current
Rear class lightning protection circuit can be flowed through, series inductance between two-stage protection circuit, inductance is mainly to allow the lightning protection of prime to protect electricity
Route starts.Two-stage protection circuit is to take the advantages of each forming component, when piezo-resistance deterioration failure, Temperature protection
Silk heating, disconnects main circuit, exempts phenomenon on fire of generating heat, and discharge tube, which is primarily due to piezo-resistance, leakage phenomenon, string
After joining discharge tube, leakage current can be avoided, greatly increases the life-span of product.
Illuminating circuit is a series arm, and the series arm is by a current-limiting resistance R, a commutation diode D and one luminous two
Pole pipe LED strip connection is formed.Current-limiting resistance R, commutation diode D and LED are sequentially connected.When two Thermal Cutoffs
In one of them because heating and when failing, LED will not work, and be bright, Neng Gouti when normal work
The user that wakes up changes device or maintenance.
It is specific to connect one end and the Thermal Cutoffs F1 other end that order is piezo-resistance MOV1 in first series arm
Connection, discharge tube GDT1 one end is connected with inductance L2 one end.In second series arm, piezo-resistance MOV2 one end and temperature
Fuse F2 other end connection is spent, discharge tube GDT2 one end is connected with the inductance L2 other end.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (5)
1. a kind of LED street lamp arrester circuit for exempting from ground connection, it is characterised in that protected including the first Thermal Cutoffs, second temperature
Dangerous silk, the first piezo-resistance, the second piezo-resistance, the first inductance, the second inductance, the first discharge tube, the second discharge tube and luminous
Circuit；First piezo-resistance connects to form the first series arm with the first discharge tube, the second piezo-resistance and the second discharge tube string
Connection forms the second series arm, one end connection zero line of the first Thermal Cutoffs, one end of the first series arm and the first electricity
The other end of the one end of sense with the first Thermal Cutoffs is connected, and one end of the other end of the first series arm and the second inductance is equal
Connect zero line side, one end of the other end connection second temperature fuse of the first inductance, one end of the second series arm and luminous
One end of circuit and the other end of second temperature fuse are all connected with positive pole output, the other end of the second inductance, the second string
The other end of the other end and illuminating circuit that join branch road is all connected with negative pole output.
2. LED street lamp arrester circuit as claimed in claim 1, it is characterised in that the illuminating circuit is a series arm,
The series arm is in series by a current-limiting resistance, a commutation diode and a light emitting diode.
3. LED street lamp arrester circuit as claimed in claim 2, it is characterised in that the current-limiting resistance, commutation diode and
Light emitting diode is sequentially connected.
4. LED street lamp arrester circuit as claimed in claim 1, it is characterised in that one end of first piezo-resistance with
The other end connection of first Thermal Cutoffs, one end of the first discharge tube is connected with one end of the second inductance.
5. LED street lamp arrester circuit as claimed in claim 1, it is characterised in that one end of second piezo-resistance with
The other end connection of second temperature fuse, one end of the second discharge tube is connected with the other end of the second inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171939.3U CN206673581U (en) | 2017-02-24 | 2017-02-24 | A kind of LED street lamp arrester circuit for exempting from ground connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171939.3U CN206673581U (en) | 2017-02-24 | 2017-02-24 | A kind of LED street lamp arrester circuit for exempting from ground connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206673581U true CN206673581U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720171939.3U Active CN206673581U (en) | 2017-02-24 | 2017-02-24 | A kind of LED street lamp arrester circuit for exempting from ground connection |
Country Status (1)
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| CN (1) | CN206673581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224390A (en) * | 2018-11-26 | 2020-06-02 | 菲尼克斯电气公司 | Overvoltage protection device with thermal overload protection device |
-
2017
- 2017-02-24 CN CN201720171939.3U patent/CN206673581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224390A (en) * | 2018-11-26 | 2020-06-02 | 菲尼克斯电气公司 | Overvoltage protection device with thermal overload protection device |
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