CN2605577Y - Power-off alarm for rural electric network - Google Patents
Power-off alarm for rural electric network Download PDFInfo
- Publication number
- CN2605577Y CN2605577Y CN 02240863 CN02240863U CN2605577Y CN 2605577 Y CN2605577 Y CN 2605577Y CN 02240863 CN02240863 CN 02240863 CN 02240863 U CN02240863 U CN 02240863U CN 2605577 Y CN2605577 Y CN 2605577Y
- Authority
- CN
- China
- Prior art keywords
- power
- alarm
- relay
- normally closed
- rural
- 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
- 238000009527 percussion Methods 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010615 ring circuit Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Alarm Systems (AREA)
Abstract
The utility model relates to an alarm for the current failure of power equipment of the rural power grid, which comprises a power line, a cabinet, and alarm line components in the cabinet. The 220 V AC of the power grid is transmitted to the power transformer in the cabinet via the power line, and is transferred to the relay after the voltage reduction and commutation. A normally closed contact of the relay is connected with 6F22 9V battery, a switch and an alarm whistle so as to form a return circuit; when the 220 V AC is in normal power supply, the normally closed contact of the relay is absorbed and cut off, so the alarm is in standby state. When the 220V AC is cut off, the relay is released, and the normally closed contact is communicated with the 9V battery and is connected with the alarm whistle, so the alarm whistle is sounded. The utility model is especially applicable for alarm, and has the advantages of simple structure, security and reliability, maintenance free and low cost, so the utility model is suitable for being distributed in rural areas widely.
Description
Technical field
The utility model relates to the power alarm technical field, especially a kind of power failure alarm device that is applicable to rural power grids.
Background technology
In recent years, finish along with national projects to upgrade rural power grids are approaching, poor, remote mountain area, village all lead to rural power, and the robber cuts off electric network source, and the case of stealing electric power facility is in rising trend, cause heavy losses for country and peasant's interests.Therefore, a kind of power-off alarm that is fit to deploy to ensure effective monitoring and control of illegal activities at rural power grids of development seems very necessary.At present, common power failure alarm device is usually by testing circuit, relay, news ring circuit and these several parts of built-in warning power supply constitute, as State Intellectual Property Office's Granted publication, the patent No. 00229044.8 " multifunction power transformer and circuit power-off alarm ", the patent No. 01237742.2 " multi-functional power-off alarm " and the patent No. 01279959.9 " low-voltage power line power-off alarm ", its warning principle of work is, during grid cut-off, relay electric-loss, normally closed contact is closed voluntarily, and news are rung circuit and built-in warning power connection, and the news Chinese percussion instrument sends chimes of doom.Therefore, can news be rung the loudness of the structure of circuit and news Chinese percussion instrument and cost and directly had influence on warning device and apply in the rural area in a large number.Make the news Chinese percussion instrument with small-bore loudspeaker (loudspeaker), volume is limited, and bigger than normal with the then whole apparatus structure of heavy caliber loudspeaker, cost is higher; And directly adopt automobile-used electric horn, and save circuit such as audio oscillation, amplification, but pronunciation being dull, cost is not low yet.Above defective is used all can for remote districts, rural area large-scale popularization and be caused difficulty.
Summary of the invention
In order to overcome existing grid cut-off warning device complex structure, cost is higher, or the dull defective of pronunciation, the utility model provides a kind of alarm, can not only be applicable to power alarm, and the grid cut-off that is particularly useful for the rural area is reported to the police, the designs simplification of warning device, cost reduces, and can send loud, ear-piercing robber and police chimes of doom, in order to applying in the rural area.
The technical scheme that its technical matters that solves the utility model adopts is: cut-offing alarming circuit is set in casing, cut-offing alarming circuit comprises: with the attaching plug of rural power grids connection, the testing circuit of forming by transformer and rectification circuit, the relay in parallel, and relay normally closed contact and news Chinese percussion instrument, built-in warning power supply, the operating switch circuit of connecting mutually with testing circuit.The news Chinese percussion instrument adopts the siren of being made sounding component by piezoelectric ceramic piece, and siren inside has multivibrator, audio frequency to amplify and power amplifier, can send loud, ear-piercing robber and police chimes of doom.Built-in warning power supply adopts 6F22 type laminated cell.After operating switch closed, when the AC network normal power supply, testing circuit output direct current signal disconnected the relay normally closed contact, and the news Chinese percussion instrument has not had the built-in power power supply and has been in waiting status; During grid cut-off, relay electric-loss, normally closed contact are closed voluntarily, news Chinese percussion instrument and warning power connection and send chimes of doom.
The beneficial effects of the utility model are: make the news Chinese percussion instrument with siren, alarm can send loud ear-piercing robber and police chimes of doom, simplify the structure, reduced cost, help producing in a large number this kind alarm, extensively deploying to ensure effective monitoring and control of illegal activities in the remote districts, rural area, to prevent the outage of the destroyed property of rural power grids, power equipment is stolen plays an important role.
Description of drawings
Accompanying drawing is the utility model electrical schematic diagram.
Embodiment
In the accompanying drawing, attaching plug XP, the transformer T, commutation diode VD1-VD4 and the filter capacitor C that connect with rural power grids form testing circuit, relay K in parallel and pilot lamp LED1 with testing circuit, and the normally closed contact K1-1 of relay K connects pilot lamp LED2 in parallel on the news Chinese percussion instrument mutually with news Chinese percussion instrument HMS, built-in power E, operating switch S.LED1, LED2 last series limiting resistor R1, R2 respectively.
Principle of work: after the utility model inserts electrical network, the operating switch S that closes, testing circuit output direct current signal makes pilot lamp LED1 bright, and the normally closed contact K1-1 of relay K disconnects the connection of news Chinese percussion instrument HMS and built-in power E, and warning circuit is in waiting status.When grid cut-off, pilot lamp LED1 extinguishes, the relay K dead electricity, and the closed voluntarily and connection of connecting news Chinese percussion instrument and built-in power of normally closed contact K1-1, pilot lamp LED2 is bright, interrogates Chinese percussion instrument and sends chimes of doom.
Element is selected:
The siren that news Chinese percussion instrument HMS employing is made sounding component by piezoelectric ceramic piece is a feature of the present utility model, can send the robber and police chimes of doom, and is loud, ear-piercing, has multiple finished product available, cheap on the market, and the utility model adopts model A﹠amp; S-ES1, operating voltage 9-12V, maximum current 250mA, loudness reaches 110dB (12V); Built-in power E selects 6F22 type 9V laminated cell for use, and its extension line is a press-button type, and contact is reliable, and the capacity of 6F22 has 0.1-0.3Ah several, and is most suitable as the device power supply of not wanting continuous power consumption, and buys easily; Transformer T selects for use high-quality subminiature as far as possible, to save the grid alternating current loss; Relay K can be selected JZC-23F series, operating voltage 9V for use; Operating switch S also selects small-sized dial type for use, and commutation diode VD1-VD4 is a 1N4000 series low-power diode, filter capacitor C10 μ F/16V, and LED 1 redness, the LED2 green, current-limiting resistance R1, R2 are 2k Ω.
Interchange power consumption of the present utility model does not need special maintenance less than 3W after coming into operation, can be connected on all the year round on the electrical network, checks whether the utility model is in holding state or whether 6F22 voltage is sufficient, need only the plug attaching plug, and hear the chimes of doom size and get final product.
Claims (2)
1, a kind of rural power grids power-off alarm, it is characterized in that in casing, being provided with cut-offing alarming circuit, cut-offing alarming circuit comprises testing circuit, the relay in parallel with testing circuit, and relay normally closed contact and news Chinese percussion instrument, built-in warning power supply, the operating switch circuit of connecting mutually, it is characterized in that interrogating Chinese percussion instrument and adopt the siren that can send the robber and police chimes of doom.
2, rural power grids power-off alarm according to claim 1, the sounding component that it is characterized in that siren is a piezoelectric ceramic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240863 CN2605577Y (en) | 2002-07-08 | 2002-07-08 | Power-off alarm for rural electric network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240863 CN2605577Y (en) | 2002-07-08 | 2002-07-08 | Power-off alarm for rural electric network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605577Y true CN2605577Y (en) | 2004-03-03 |
Family
ID=34149158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240863 Expired - Fee Related CN2605577Y (en) | 2002-07-08 | 2002-07-08 | Power-off alarm for rural electric network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605577Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447823C (en) * | 2006-12-07 | 2008-12-31 | 时均泉 | Caution device of monitoring low voltage distribution line |
| CN100539507C (en) * | 2006-03-07 | 2009-09-09 | 瑞昱半导体股份有限公司 | Relay arranged in network device and related method |
| CN101741050B (en) * | 2009-12-25 | 2012-05-30 | 中国电信股份有限公司 | Device and method for alarming on interruption of power supply, xDSL outdoor chassis and xDSL system |
| CN103675418A (en) * | 2012-09-19 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Network voltage monitoring circuit |
| CN109470910A (en) * | 2018-07-02 | 2019-03-15 | 金华八达集团有限公司科技信息分公司 | A kind of power distribution network power loss detection system and method |
-
2002
- 2002-07-08 CN CN 02240863 patent/CN2605577Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100539507C (en) * | 2006-03-07 | 2009-09-09 | 瑞昱半导体股份有限公司 | Relay arranged in network device and related method |
| CN100447823C (en) * | 2006-12-07 | 2008-12-31 | 时均泉 | Caution device of monitoring low voltage distribution line |
| CN101741050B (en) * | 2009-12-25 | 2012-05-30 | 中国电信股份有限公司 | Device and method for alarming on interruption of power supply, xDSL outdoor chassis and xDSL system |
| CN103675418A (en) * | 2012-09-19 | 2014-03-26 | 深圳市海洋王照明工程有限公司 | Network voltage monitoring circuit |
| CN103675418B (en) * | 2012-09-19 | 2017-12-15 | 深圳市海洋王照明工程有限公司 | A kind of line voltage observation circuit |
| CN109470910A (en) * | 2018-07-02 | 2019-03-15 | 金华八达集团有限公司科技信息分公司 | A kind of power distribution network power loss detection system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |