CN2227361Y - Anti-theft siren for power line and transformer - Google Patents
Anti-theft siren for power line and transformer Download PDFInfo
- Publication number
- CN2227361Y CN2227361Y CN 94222128 CN94222128U CN2227361Y CN 2227361 Y CN2227361 Y CN 2227361Y CN 94222128 CN94222128 CN 94222128 CN 94222128 U CN94222128 U CN 94222128U CN 2227361 Y CN2227361 Y CN 2227361Y
- Authority
- CN
- China
- Prior art keywords
- relay
- circuit
- utility
- model
- theft
- 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
- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to an anti-theft alarm for power lines and transformers, composed of a control return circuit, an error resistant circuit, an alarm circuit and a packaging outer shell. The utility model has the advantages of simple structure, complete function, high sensitivity, high safety, etc. The power failure does not alarm by error. The utility model is suitable for rural power networks. The utility model prevents the transformer and lines from theft. The utility model can be also used for anti-theft of doors and windows, fish ponds, orchards, etc.
Description
The utility model belongs to line of electric force or the antitheft field of consumer.
Patent gazette the 7th is rolled up and is disclosed a kind of rheostat power line anti-theft alarm device No. 7, by the impedance conversion sensing circuit, and comparator circuit and warning circuit, equal energy burglar alarm under power failure and the electric power thus supplied to not interference of electrical appliance on every side, and is provided with phase failure power failure demonstration.Its complex structure only is applicable to that three-phase alternating current is not suitable for rural power circuit and transformer anti-theft.
The purpose of this utility model provide a kind of simple in structure, be applicable to the alarm that rural power circuit and transformer anti-theft are used.
The purpose of this utility model is achieved in that a kind of power circuit and transformer anti-theft alarm, and its cardinal principle and structure are that it is made up of control loop, anti-error circuit, warning circuit and package casing; Line of electric force and AC relay J
1Series connection constitutes control loop; Series direct current relay J between zero line and the ground wire
2And direct supply, during AC outage, DC relay J
2Disconnect, constitute anti-error circuit; Direct supply and AC relay J
1, DC relay J
2Connect, with music integrated package and the amplifier that is attached thereto, the diode D that is connected in parallel
3Constitute warning circuit with loudspeaker.
Because the utility model adopts AC-DC relay and line of electric force to form and opens and closes the loop, have advantages such as simple in structure, easy to use, that power saving is safe and reliable, therefore can be installed in the user family, and there is light to show, operating a switch has a power failure advantage such as does not report by mistake, is suitable for rural power circuit and transformer anti-theft and uses.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is a structural representation of the present utility model.
Among the figure: 1, loudspeaker, 2, pilot lamp, 3, package casing, 4, direct supply, 5, AC relay, 6, DC relay, 7, power supply, 8, switch, 9, timer.
The structure of embodiment of the present utility model is: alarm is made of package casing, and signalization pilot lamp, switch, loudspeaker and timer on the plate face are provided with direct supply and AC relay that is arranged side by side and DC relay in the housing.Its basic circuit annexation is: a DC relay J connects between zero line and the ground wire
2With 9 volts of direct supplys, DC relay J
2With the resistance R of connecting
2With diode D
2Be connected in series AC relay J between the parallel connection, zero line and live wire
1, AC relay and the resistance R of connecting
1With diode D
1Parallel connection, direct supply and AC relay J
1, DC relay J
2Connect.Loudspeaker and diode D
3Parallel connection is connected with triode, and transistor base is connected with music-integrating block, resistance R
3Be connected with music-integrating block.
Power circuit and transformer anti-theft alarm are made up of control loop, anti-error circuit, warning circuit and package casing, and loudspeaker, pilot lamp, switch and timer are set on the package casing, line of electric force and AC relay J
1Series connection constitutes control loop; Series relay J between zero line and the ground wire
2And direct supply; Direct supply and AC relay J
1, DC relay J
2Connect, with music integrated package and the amplifier that is attached thereto, the diode D that is connected in parallel
3Constitute warning circuit with loudspeaker.
A DC relay J connects between zero line and ground wire
2With 9 volts of direct supplys, it constitutes the loop by the earth.When alternating current, AC relay J
11Disconnect, control zero line and earth loop cut off direct supply, J simultaneously
12Disconnect, control warning power supply is in the follow-up work state.When having stopped alternating current, direct supply makes DC relay J
2Normally closed contact disconnects, and control warning power supply alarming does not ring.When the thief cut off line of electric force, zero line was cut off, DC relay J
2The normally closed contact closure, warning circuit is connected, and music-integrating block is reported to the police.The AC and DC relay plays the alternating current transformation.
Claims (1)
1, a kind of power circuit and transformer anti-theft alarm is characterized in that it is made up of control loop, anti-error circuit, warning circuit and package casing; Line of electric force is connected with AC relay J1 and is constituted control loop; Series relay J between zero line and the ground wire
2And direct supply, during AC outage, DC relay J
2Disconnect, constitute anti-error circuit; Direct supply and AC relay J
1, DC relay J
2Connect, with music integrated package and the amplifier that is attached thereto, the diode D that is connected in parallel
3Constitute warning circuit with loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222128 CN2227361Y (en) | 1994-09-14 | 1994-09-14 | Anti-theft siren for power line and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222128 CN2227361Y (en) | 1994-09-14 | 1994-09-14 | Anti-theft siren for power line and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227361Y true CN2227361Y (en) | 1996-05-15 |
Family
ID=33836218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94222128 Expired - Fee Related CN2227361Y (en) | 1994-09-14 | 1994-09-14 | Anti-theft siren for power line and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227361Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255279A (en) * | 2011-05-19 | 2011-11-23 | 深圳市普耐光电科技有限公司 | Anti-theft safety device of electric appliance |
| CN103325196A (en) * | 2013-05-30 | 2013-09-25 | 成都荣耀科技有限公司 | Low-voltage electric power circuit anti-theft system with warning function |
-
1994
- 1994-09-14 CN CN 94222128 patent/CN2227361Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255279A (en) * | 2011-05-19 | 2011-11-23 | 深圳市普耐光电科技有限公司 | Anti-theft safety device of electric appliance |
| CN103325196A (en) * | 2013-05-30 | 2013-09-25 | 成都荣耀科技有限公司 | Low-voltage electric power circuit anti-theft system with warning function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5781107A (en) | Alarm device for automatic garage door | |
| CN201051614Y (en) | Multi-function intelligent theftproof alarming and distribution system | |
| CN2227361Y (en) | Anti-theft siren for power line and transformer | |
| CN2407366Y (en) | Multifunctional power transformer and line power-off alarm | |
| CN201035682Y (en) | Power line anti-theft detection alarm | |
| CN108564752A (en) | Cable anti-theft system based on NB-IoT and its alarm method | |
| CN2160956Y (en) | Line anti-theft alarm | |
| CN208208043U (en) | Cable anti-theft device based on NB-IoT | |
| CN208209255U (en) | Box-type substation | |
| CN2605577Y (en) | Power-off alarm for rural electric network | |
| WO1995027958A1 (en) | Alarms incorporating plug for electric appliances | |
| CN201170913Y (en) | Power line anti-theft alarm | |
| CN201166894Y (en) | Anti-theft alarm device | |
| CN101750567A (en) | Power equipment power failure alarm device | |
| CN207883067U (en) | A kind of anti-theft warning circuit | |
| CN202404132U (en) | Intelligent electricity stealing prevention device for power metering | |
| CN204127445U (en) | Valve control module and blasting resistance structure design thereof | |
| CN2577294Y (en) | Monitor for preventing ilegal-use of electricity | |
| CN219433196U (en) | Emergency lighting power supply device | |
| CN87210254U (en) | Protector for electricity supply interruption | |
| CN2420770Y (en) | Multifunction transformer | |
| CN213185047U (en) | Intelligent anti-electricity-theft switch board device | |
| CN2354192Y (en) | Civil anti-theft alarm | |
| CN2331036Y (en) | Switch type anti-burglar alarm | |
| CN207157060U (en) | A kind of car horn intelligent alarm circuit |
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 |