CN2603981Y - Anti-theft device - Google Patents
Anti-theft device Download PDFInfo
- Publication number
- CN2603981Y CN2603981Y CN 02291910 CN02291910U CN2603981Y CN 2603981 Y CN2603981 Y CN 2603981Y CN 02291910 CN02291910 CN 02291910 CN 02291910 U CN02291910 U CN 02291910U CN 2603981 Y CN2603981 Y CN 2603981Y
- Authority
- CN
- China
- Prior art keywords
- relay
- bridge rectifier
- magnetron
- circuit
- electrically connect
- 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
- 239000003990 capacitor Substances 0.000 claims abstract description 23
- 230000006837 decompression Effects 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 238000007600 charging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses a prevent to open ammeter case and steal anti-theft device of electricity, including ammeter case, transformer, bridge rectifier, electrolytic capacitor C1And C2The circuit formed by the magnetron, the magnet, the relay, the electromagnetic counter and the alarm has stable working performance, low cost and higher accuracy, does not need to add any anti-electricity-stealing device to the ammeter, and is suitable for the application of large and small ammeter boxes.
Description
One, technical field
The utility model relates to a kind of anti-theft device, specifically relate to a kind of prevent to open ammeter box and steal the electricity anti-theft device.
Two, background technology
At present, the electronic anti-theft technology is more, the door window antitheft device, and design is comparatively complicated, and cost is also higher.ZL01279599.2 discloses a kind of " case, cabinet anti-theft device ", and its technical scheme is made up of wireless signal adjustment transmitter, receiving circuit, triggering change-over circuit, modulating pulse oscillatory circuit, promotion, output high-pressure generating circuit, circuit start storage circuit, warning circuit and feed circuit.Its connected mode is: transmitter control receiving circuit, and the output terminal of receiving circuit, control triggers the input end of change-over circuit.Trigger the voltage input end of the control linkage adjustment pulse oscillation circuit of change-over circuit, connect the voltage input end of warning circuit simultaneously again.The output terminal of modulating pulse oscillatory circuit connects the signal input part that promotes, exports high-pressure generating circuit.Promote output termination casing (or cabinet) metal inner surface of output high-pressure generating circuit, its another output terminal is connected with the input end of circuit start storage circuit.The power positive end that again output terminal of circuit start storage circuit is connected feed circuit.The voltage output end of feed circuit is connected with the voltage input end that circuit is changed in triggering, is connected with the voltage input end of receiving circuit again simultaneously.Its function is easily made mistakes too much, complex structure, cost height.
Three, summary of the invention
The purpose of this utility model aims to provide and a kind ofly prevents to open ammeter box and steal the anti-theft device of electricity, designs alarm against theft in ammeter box, and the generation of electrical phenomena is stolen in control.
To achieve these goals, anti-theft device of the present utility model comprises ammeter box, transformer, bridge rectifier, electrochemical capacitor C
1With C
2, message register, magnetron, relay, alarm and magnet, the secondary and bridge rectifier of transformer electrically connects, the positive pole of bridge rectifier is connected with magnetron, simultaneously also with electrochemical capacitor C
1Positive electrical connect, the other end and the relay coil of magnetron electrically connect relay J
1Normally closed contact connect relay J with the positive electrical of bridge rectifier
1Normally opened contact and message register electrically connect relay J
1Armature contact and electrochemical capacitor C
2Positive electrical connect relay J
2Armature contact and alarm electrically connect relay J
2Anodal connection of normally opened contact and DC circuit, the negative pole of other electrical part beyond the magnetron all connects with the negative pole of DC circuit, the circuit of Zu Chenging is fixing in the circuit board thus, wiring board is fixed in the plastic casing, plastic casing is installed in the ammeter box, and fixedly connected with ammeter box, magnet is installed in the door inboard of ammeter box, its position is corresponding with the position of magnetron, so that magnet is the magnetron closing of contact when opening the door, make DC circuit energising, relay work and reach the purpose of counting simultaneously and reporting to the police.
Can also adopt decompression capacitor and voltage stabilizing diode to replace transformer, reach same purpose, its structure is that decompression capacitor and bridge rectifier electrically connect, and the positive pole of the clean and tidy device of bridge-type connects with the positive electrical of zener diode, and other connecting mode is the same.
The utility model compared with prior art.Have following excellent effect:
1, adopt the utility model, power consumption is little, and the precision height need not change ammeter or extension circuit on ammeter;
2, the utility model utilizes the function that relay can multidirectional control, controls message register and alarm simultaneously, and the counting region of message register is 0-999999, long-term accumulative total can't be changed numerical value, and inverse can not reset, count one by one, alarm continues to report to the police under the condition of not cutting off the power supply;
3, because circuit is given electrochemical capacitor C
2Dash electricity, during relay work, electrochemical capacitor C
2Discharge and make message register work (counting) is so during power failure, message register also can operate as normal;
4, utilize the keying of magnet control magnetron contact, and then pilot relay, reach the purpose of controlling message register and alarm;
5, anti-theft device is installed in ammeter box, has promptly been protected normal power supply, protected ammeter not to be destroyed again, simultaneously ammeter box has also been played protective effect.
Four, description of drawings
Fig. 1 is the self-contained synoptic diagram of the utility model;
Fig. 2 is the utility model wiring diagram;
Fig. 3 is the utility model circuit diagram.
Wherein: 1, be ammeter box; 2, be plastic casing; 3, be magnet; 4, be ammeter; 5, be transformer; 6, be bridge rectifier; 7, be electrochemical capacitor C
18, be electrochemical capacitor C
29, be magnetron; 10, be relay; 11, be message register; 12, be alarm; 13, be decompression capacitor; 14, be voltage stabilizing diode; 15, be the ammeter chamber door
Five, embodiment
Shown in Figure 2, at first the transformer 5 of 2W, bridge rectifier 6, magnetron 9, electrochemical capacitor C
17, C
28, message register 11, relay 10, alarm 12 are separately fixed on the wiring board, and the secondary and bridge rectifier 6 with transformer 5 electrically connects then, the positive pole of bridge rectifier 6 respectively with electrochemical capacitor C
17, magnetron 9 and relay J
1Normally closed contact electrically connect, the other end of magnetron 9 and relay 10 coils electrically connect relay J
1Armature contact and electrochemical capacitor C
28 positive electrical connects, relay J
1Normally opened contact connect relay J with the positive electrical of message register 11
2Armature contact connect relay J with alarm 12 positive electrical
2Normally opened contact connect with the positive electrical of DC circuit, the element negative pole beyond the magnetron 9 all connects with the negative electricity of DC circuit.
Shown in Figure 3, at first be that decompression capacitor 13 and bridge rectifier 6 are electrically connected, the positive pole of bridge rectifier 6 connects with the positive electrical of other anodal and the same element of voltage stabilizing diode 14, and is the same with lower link.
Fixing circuit in the circuit board shown in Figure 2 is installed in the plastic casing 2, plastic casing 2 is installed in the ammeter box 1 (shown in Figure 1) again, simultaneously magnet 3 is installed in the inboard of ammeter chamber door 15, makes it corresponding with magnetron 9.
Energized through transformer 5 step-downs, is passed through bridge rectifier 6 rectifications again, thereafter by electrochemical capacitor C
17 filter action, and make alternating current change galvanic current into, pass through relay J afterwards
1Normally closed contact to electrochemical capacitor C
28 chargings; When magnet 3 separates with magnetron 9, magnetron 9 conductings, relay 10 coil of wire energising work make relay J
1, J
2Normally opened contact conducting simultaneously, message register 11 is because of electrochemical capacitor C
28 discharges and do counting work, alarm 12 energisings simultaneously and reporting to the police; When magnet 3 contacted with magnetron 9, magnetron 9 contacts disconnected, and relay 10 coils of wire cut off the power supply and quit work relay J
1, J
2Normally opened contact transfer normally closed contact to, alarm 12 and message register 11 are charged and quit work yet.
Claims (2)
1, a kind of anti-theft device comprises ammeter box, transformer or decompression capacitor and stabistor, bridge rectifier, electrochemical capacitor C
1With C
2, message register, magnetron, relay, alarm and magnet, transformer connects with bridge rectifier, the positive pole of bridge rectifier and electrochemical capacitor C
2Positive pole connect, the circuit of fixing in the circuit board is fixed in the plastic casing, again plastic casing is placed in the ammeter box, the positive pole that it is characterized in that bridge rectifier also with magnetron and relay J
1Normally closed contact electrically connect, the other end and the relay coil of magnetron electrically connect relay J
1Armature contact and electrochemical capacitor C
2Positive electrical connect relay J
1Normally opened contact and message register electrically connect relay J
2Armature contact connect relay J with the alarm positive electrical
2Normally opened contact and circuit anode electrically connect, magnet is installed in the inboard of ammeter chamber door, and corresponding with magnetron.
2, anti-theft device according to claim 1 is characterized in that decompression capacitor and bridge rectifier electrically connect, and the positive pole of bridge rectifier connects with the positive electrical of voltage stabilizing diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291910 CN2603981Y (en) | 2002-12-10 | 2002-12-10 | Anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291910 CN2603981Y (en) | 2002-12-10 | 2002-12-10 | Anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603981Y true CN2603981Y (en) | 2004-02-18 |
Family
ID=34151593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02291910 Expired - Fee Related CN2603981Y (en) | 2002-12-10 | 2002-12-10 | Anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603981Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103679997A (en) * | 2013-11-29 | 2014-03-26 | 原平市源通汽车装潢有限公司 | Transformer anti-theft device |
-
2002
- 2002-12-10 CN CN 02291910 patent/CN2603981Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103679997A (en) * | 2013-11-29 | 2014-03-26 | 原平市源通汽车装潢有限公司 | Transformer anti-theft device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040218 Termination date: 20100111 |