CN203536951U - Monitoring-used surge protector lightening failure indication device - Google Patents
Monitoring-used surge protector lightening failure indication device Download PDFInfo
- Publication number
- CN203536951U CN203536951U CN201320591219.4U CN201320591219U CN203536951U CN 203536951 U CN203536951 U CN 203536951U CN 201320591219 U CN201320591219 U CN 201320591219U CN 203536951 U CN203536951 U CN 203536951U
- Authority
- CN
- China
- Prior art keywords
- line
- diode
- resistance
- lightening
- monitoring
- 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 - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a monitoring-used surge protector lightening failure indication device. An L line and an N line of an input alternating current SK1 and an output alternating current SK2 are connected by an induction coil L1 and an induction coil L2, respectively. Thermal protection piezoresistors TMOV1 and TMOV3 are connected in parallel between the L line and a ground line. Thermal protection piezoresistors TMOV2 and TMOV4 are connected in parallel between the N line and the ground line. A diode D1, a resistor R1, a green terminal pin 3 of a two-color diode D3, and temperature-sensitive fuses of the thermal protection piezoresistors TMOV1, TMOV2, TMOV3 and TMOV4 are connected in series between the L line and the N line. A diode D2, a red terminal pin 1 of the two-color diode D3, the diode D1 and the resistor R1 are connected in series between the L line and the N line. The monitoring-used surge protector lightening failure indication device provided by the utility model has the advantages of small power supply lightening protection part, quick response, red-green two-color state indication and capacity of determining whether the lightening protection product is failed.
Description
Technical field
The utility model relates to a kind of monitoring thunder resisting equipment technical field, especially relates to surge protector thunder and lightning Indication of Losing Efficacy device for a kind of monitoring.
Background technology
Along with the extensive use of supervisory control system in places such as bank, supermarket, market, public transport, people also strengthen gradually to the lightning protection consciousness of monitoring product.
The lightning protection of most monitoring power supply partly adopts common piezo-resistance to protect; common piezo-resistance only has over-voltage protecting function and simple in structure; the Indication of Losing Efficacy that carries out power lightning protection needs another extension wire, and the volume that makes to monitor lightning-protected product is large, and cost increases.
Summary of the invention
The purpose of this utility model is to improve the deficiency of prior art and the hot protection type piezo-resistance, the power lightning protection partial volume that provide a kind of use to have overvoltage, overcurrent and excess temperature multiple protection functions is little, reaction is fast and have the indication of red and green color state, can accurately judge whether lightning-protected product lost efficacy, guarantees that monitoring product can access the monitoring use surge protector thunder and lightning Indication of Losing Efficacy device of timely and effective protection.
The purpose of this utility model is to realize like this, surge protector thunder and lightning Indication of Losing Efficacy device for a kind of monitoring, by electronic circuit, formed, be characterized in that described electronic circuit is input AC electricity SK1, the L line of output AC electricity SK2, between N line, pass through respectively inductance coil L1, L2, hot protection type piezo-resistance TMOV1, TMOV3 is attempted by respectively between L line-ground wire, hot protection type piezo-resistance TMOV2, TMOV 4 is attempted by respectively between N line-ground wire, diode D1, resistance R 1, green end pin 3 pin of two-color diode D3, hot protection type piezo-resistance TMOV1, TMOV2, TMOV3, the temperature-sensitive insurance of TMOV4 is serially connected between L line-N line, diode D2, red end pin 1 pin of two-color diode D3, diode D1 and resistance R 1 are serially connected between L line-N line.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model is two-stage surge protection, tandem electric inductance coil between every grade, surge protector adopts the protected mode on L-ground, N-ground, every line over the ground between hot protection type piezo-resistance in parallel, state indication adopts red and green color diode; Under normal condition, the insurance of the temperature-sensitive of hot protection type piezo-resistance is serially connected in L, N two ends with 2 pin and 3 pin of two-color diode green end by diode, resistance, and when hot protection type piezo-resistance did not lose efficacy, green diode is bright; When hot protection type piezo-resistance is because the leakage current that is subject to be repeatedly struck by lightning is when excessive, hot protection type piezo-resistance heating, and built-in temperature-sensitive insurance heating is opened circuit, after the path of green diode disconnects, red end 1 pin and 2 pin that connect two-color diode form path by diode and resistance, make red diode bright, the disabler of prompting user lightning protection, need change surge protection device again; The utility model small product size is dwindled, and reduces costs, and state Indicator Reaction is reliable rapidly.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is a kind of electronic circuit schematic diagram of the present utility model.
Embodiment
Embodiment, surge protector thunder and lightning Indication of Losing Efficacy device for a kind of monitoring, with reference to Fig. 1, by electronic circuit, formed, described electronic circuit is input AC electricity SK1, the L line of output AC electricity SK2, between N line, pass through respectively inductance coil L1, L2, hot protection type piezo-resistance TMOV1, TMOV3 is attempted by respectively between L line-ground wire, hot protection type piezo-resistance TMOV2, TMOV 4 is attempted by respectively between N line-ground wire, diode D1, resistance R 1, green end pin 3 pin of two-color diode D3, hot protection type piezo-resistance TMOV1, TMOV2, TMOV3, the temperature-sensitive insurance of TMOV4 is serially connected between L line-N line, diode D2, red end pin 1 pin of two-color diode D3, diode D1 and resistance R 1 are serially connected between L line-N line, this forms a kind of structure of the present utility model.
While using the utility model, when hot protection type piezo-resistance loses efficacy, the green indicating lamp of two-color diode D3 was not bright, and when hot protection type pressure responsive resistor failure makes inner temperature-sensitive fuse circuit breaking, the red led of two-color diode D3 is bright.
Claims (1)
1. surge protector thunder and lightning Indication of Losing Efficacy device for a monitoring, by electronic circuit, formed, it is characterized in that described electronic circuit is input AC electricity SK1, the L line of output AC electricity SK2, between N line, pass through respectively inductance coil L1, L2 connects, hot protection type piezo-resistance TMOV1, TMOV3 is attempted by respectively between L line-ground wire, hot protection type piezo-resistance TMOV2, TMOV 4 is attempted by respectively between N line-ground wire, diode D1, resistance R 1, green end pin 3 pin of two-color diode D3, hot protection type piezo-resistance TMOV1, TMOV2, TMOV3, the temperature-sensitive insurance of TMOV4 is serially connected between L line-N line, diode D2, red end pin 1 pin of two-color diode D3, diode D1 and resistance R 1 are serially connected between L line-N line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591219.4U CN203536951U (en) | 2013-09-25 | 2013-09-25 | Monitoring-used surge protector lightening failure indication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591219.4U CN203536951U (en) | 2013-09-25 | 2013-09-25 | Monitoring-used surge protector lightening failure indication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536951U true CN203536951U (en) | 2014-04-09 |
Family
ID=50423127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591219.4U Expired - Lifetime CN203536951U (en) | 2013-09-25 | 2013-09-25 | Monitoring-used surge protector lightening failure indication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865532A (en) * | 2016-06-07 | 2016-08-17 | 贵州电网有限责任公司电力科学研究院 | Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board |
-
2013
- 2013-09-25 CN CN201320591219.4U patent/CN203536951U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865532A (en) * | 2016-06-07 | 2016-08-17 | 贵州电网有限责任公司电力科学研究院 | Monitoring and alarming system for transformer substation secondary system TMOV lightning arrester main board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8154832B2 (en) | Leak detection and leak protection circuit | |
| CN203722205U (en) | Overvoltage and electric leakage protection circuit | |
| CN103346532B (en) | Electric leakage prevention plug circuit | |
| CN203589720U (en) | LED optical engine lightning protection apparatus | |
| CN104022486A (en) | Domestic multifunctional electricity protector | |
| CN201130855Y (en) | Surge protector with communication interface | |
| CN104659595A (en) | Protective plug with outage trip and overvoltage trip functions | |
| CN203536951U (en) | Monitoring-used surge protector lightening failure indication device | |
| CN102891410B (en) | Extension socket capable of protecting router through temperature alarm | |
| CN201813141U (en) | Overvoltage protection circuit | |
| CN206712453U (en) | A kind of surge intelligent protection device with fire protection function | |
| CN202230856U (en) | Transformer capable of preventing lightning stroke, overcurrent and overvoltage | |
| CN204441633U (en) | Possesses the protection plug of power-off tripping operation and superpressure trip avoidance function | |
| CN204558808U (en) | Earth leakage protective socket | |
| CN203326559U (en) | Electric leakage protection plug circuit | |
| CN204349419U (en) | Power-off trip protection plug | |
| CN2896506Y (en) | GFCI with fault indication function | |
| CN204205558U (en) | With the leakage protecting plug that ground wire high voltage detects | |
| CN209592963U (en) | Electron cigarette protection circuit and electron cigarette | |
| CN204905838U (en) | Simple and easy overvoltage protection trigger device | |
| CN101887790B (en) | Piezoresistor for lightning protection | |
| CN206292293U (en) | A kind of residual current detection device | |
| CN103531966A (en) | Energy-saving lightning socket | |
| CN205790759U (en) | A kind of power lightning protection socket | |
| CN201490684U (en) | Leakage detection protective circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |