CN203242090U - Alarm for preventing transformer in low-voltage power line from being stolen - Google Patents
Alarm for preventing transformer in low-voltage power line from being stolen Download PDFInfo
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- CN203242090U CN203242090U CN 201320303902 CN201320303902U CN203242090U CN 203242090 U CN203242090 U CN 203242090U CN 201320303902 CN201320303902 CN 201320303902 CN 201320303902 U CN201320303902 U CN 201320303902U CN 203242090 U CN203242090 U CN 203242090U
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Abstract
The utility model discloses an alarm for preventing a transformer in a low-voltage power line from being stolen. The alarm comprises an isolation transformer, a rectifier unit, a filter circuit, a voltage stabilizing circuit, a rechargeable battery and an alarm circuit, wherein the isolation transformer is connected with a phase wire input wire and a neutral wire input wire, and a first relay is connected between the phase wire input wire and the neutral wire input wire. The voltage stabilizing circuit comprises a first triode, a third resistor and a fourth voltage stabilizing tube. The alarm circuit comprises a second resistor, a first loudspeaker and a light emitting diode set, wherein the light emitting diode set includes a plurality of light emitting diodes connected in series and the same number of voltage stabilizing tubes as the light emitting diodes, and each light emitting diode is correspondingly connected in parallel with a reversely-connected voltage stabilizing tube. The alarm disclosed by the utility model has a simple structure and fewer components and is low in cost. During application, the alarm can be used in a joint defense personnel on-duty area to carry out alarming, can be used in a transformer site of a low-voltage power line to warn criminals and has good anti-theft performance.
Description
Technical field
The utility model relates to power line anti-theft equipment, specifically is used for the warning device of low tension wire when antitheft.
Background technology
The reliable supply of the supply of electric power, particularly electric power safety is society, enterprise, the common people and media spotlight always.Because safety, stable, reliably electric power supply are concerning the development of national economy, concerning the construction of harmonious society, concerning the people's vital interests.Present most of electric power facility all is in the open air, the stolen event frequent occurrence of electric power facility.Wherein, stolen comparatively general at the transformer that the stolen event mesolow of electric power facility power circuit is supporting, the general cost of warning device when being used for now the transformer anti-theft of low-voltage power line is higher, and this has affected applying of burglar alarm.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of stolen alarm of transformer in the low-voltage power line that prevents is provided, and its one-piece construction is simple, be convenient to realize, with low cost, and can send warning when the transformer decompression.
The purpose of this utility model is achieved through the following technical solutions: prevent the stolen alarm of transformer in the low-voltage power line, comprise warning circuit and the isolating transformer, rectification unit, filtering circuit, mu balanced circuit and the rechargeable battery that connect in turn, described isolating transformer is connected with phase line input line and zero line input line, is connected with the first relay between described phase line input line and the zero line input line; Described mu balanced circuit comprises the first triode, the 3rd resistance and the 4th stabilivolt, the collector and emitter of described the first triode respectively with filtering circuit anodal be connected with rechargeable battery be connected, connection between described the 3rd resistance one end and the first transistor collector and the filtering circuit positive pole, its other end is connected with the base stage of the first triode, described the 4th stabilivolt negative pole is connected on the circuit between the 3rd resistance and the first transistor base, and the 4th stabilivolt is anodal to be connected with negative electrode of chargeable battery; Described warning circuit comprises the second resistance, the first loudspeaker and light emitting diode group, described light emitting diode group comprises light emitting diode and the stabilivolt identical with light emitting diode quantity of a plurality of series connection, the stabilivolt of the corresponding reversal connection in parallel of each light emitting diode, formation the first connection in series-parallel branch road in parallel with the first loudspeaker after described the second resistance is connected with the light emitting diode group, the positive pole of the first connection in series-parallel branch road is connected with the positive pole of rechargeable battery, described the first relay often open connection between output switch one end and negative electrode of chargeable battery and the filtering circuit, its other end is connected with the negative pole of the first connection in series-parallel branch road.Wherein, phase line input line and zero line input line were connected on the outlet line of power circuit transformer when the utility model was used, and often opened the keying of output switch and were controlled by the first relay.
Described mu balanced circuit also comprises the second electric capacity, the connection between described the second electric capacity one end and the first transistor base and the 3rd resistance, and its other end is connected with negative electrode of chargeable battery.
As preferably, described the first triode is the NPN triode.
Described rectification unit comprises two input ends and two output terminals, and two input ends of rectification unit are connected with isolating transformer, two output terminals of rectification unit respectively with the filtering circuit negative pole be connected transistor collector and be connected.Wherein, when rectification unit was connected with isolating transformer, two input end and isolating transformer two output terminals connected one to one.
Described filtering circuit comprises the first resistance and the first electric capacity, described the first resistance one end is connected with the rectification unit output terminal, its other end is connected with negative electrode of chargeable battery, connection between described the first electric capacity one end and rectification unit output terminal and the first resistance, the connection between its other end and rectification unit output terminal and the first transistor collector.
As preferably, described rectification unit is bridge rectifier circuit.
Be in series with fusible link on the described phase line input line.Wherein, can avoid under the effect of fusible link that voltage input is too high to cause damage to components and parts of the present utility model.
As preferably, described light emitting diode group comprises the light emitting diode of three series connection.
Compared with prior art, the utlity model has following beneficial effect: (1) the utility model comprises the first relay, isolating transformer, rectification unit, filtering circuit, mu balanced circuit, rechargeable battery and warning circuit, wherein, isolating transformer comprises phase line input line and zero line input line, warning circuit comprises the second resistance, the first loudspeaker and light emitting diode group, the utility model one-piece construction is simple, the use components and parts are few, be convenient to realize, with low cost, and then be convenient to of the present utility model applying; Phase line input line and zero line input line were connected on the outlet line of power circuit transformer when the utility model was used, the power circuit transformer is to the first relay and isolating transformer power supply, and the voltage of isolating transformer output is through the backward rechargeable battery charging of rectification unit rectification, filtering circuit filtering and mu balanced circuit voltage stabilizing; The utility model is after the stolen decompression of power circuit transformer, the first relay makes and often opens the output switch closure, rechargeable battery and warning circuit are connected and are that warning circuit is powered, lumination of light emitting diode in the light emitting diode group, simultaneously the first loudspeaker sends alert notice joint defence personnel and rushes towards and on-the-spot the lawless person being admonished, and then can avoid in the low-voltage power line transformer stolen.
(2) light emitting diode group of the present utility model comprises the light emitting diode of a plurality of series connection, and all be parallel with the stabilivolt of a reversal connection in the light emitting diode group on each light emitting diode, so, when the utility model is used, the branch road that stabilivolt in parallel consists of on each light emitting diode consists of the holding circuit of warning circuit, when the lamp pearl of certain light emitting diode is opened circuit, the stabilivolt in parallel with it devoted oneself to work, thereby can avoid circuit to open circuit, the utility model can avoid single light emitting diode to damage and the accuracy of impact indication when using, and has further improved the reliability when the utility model is used; When warning circuit has a plurality of light emitting diode, can improve luminous intensity, therefore, the utility model not only can be arranged on joint defence personnel office and be used for reporting to the police, also can be arranged on transformer field and when transformer is stolen, adopt acousto-optic in conjunction with coming the lawless person is warned, utilize namely that loudspeaker sounding and light emitting diode group are luminous to be warned the lawless person.
(3) mu balanced circuit of the present utility model comprises the first triode, the 3rd resistance and the 4th stabilivolt, when the utility model is used, the utility model utilizes the voltage clamping characteristic of stabilivolt, when the reverse voltage of the 4th stabilivolt reaches its breakdown voltage rating, avalanche type conducting effect will appear in the 4th stabilivolt, thereby clamp the voltage on the load voltage value, the utility model amplifies by the first triode again adjusts voltage, and then finish voltage stabilizing requirement to charging voltage, so, can avoid unstable and cause rechargeable battery to damage to the charging voltage of rechargeable battery.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The corresponding name of Reference numeral is called in the accompanying drawing: 1, the phase line input line, 2, the zero line output line, 3, rectification unit, J1, the first relay, B, isolating transformer, E, rechargeable battery, R1, the first resistance, R2, the second resistance, R3, the 3rd resistance, C1, the first electric capacity, C2, the second electric capacity, Q1, the first triode, Y1, the first loudspeaker, LED1, the first light emitting diode, LED2, the second light emitting diode, LED3, the 3rd light emitting diode, DW1, the first stabilivolt, DW2, the second stabilivolt, DW3, the 3rd stabilivolt, DW4, the 4th stabilivolt, KJ, often open output switch, FU, fusible link.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment:
As shown in Figure 1, prevent the stolen alarm of transformer in the low-voltage power line, comprise the first relay J 1, isolating transformer B, rectification unit 3, filtering circuit, mu balanced circuit, rechargeable battery E and warning circuit, wherein, isolating transformer B is connected with phase line input line 1 and zero line input line 2, is in series with fusible link FU on the phase line input line 1.The first relay J 1 phase line input end is connected with the zero line input end to be connected with the zero line input line with phase line input line 1 and is connected.Mu balanced circuit comprises the first triode Q1, the 3rd resistance R 3, the 4th stabilivolt DW4 and the second capacitor C 2, and wherein, the first triode Q1 is the NPN triode.The collector and emitter of the first triode Q1 respectively with filtering circuit anodal be connected with rechargeable battery E be connected, connection between the 3rd resistance R 3 one ends and the first triode Q1 collector and the filtering circuit positive pole, its other end is connected with the base stage of the first triode Q1, the 4th stabilivolt DW4 negative pole is connected on the circuit between the 3rd resistance R 3 and the first triode Q1 base stage, and the 4th stabilivolt DW4 is anodal to be connected with rechargeable battery E negative pole.Connection between the second capacitor C 2 one ends and the first triode Q1 base stage and the 3rd resistance R 3, its other end is connected with rechargeable battery E negative pole.
Warning circuit comprises the second resistance R 2, the first loudspeaker Y1 and light emitting diode group, wherein, the light emitting diode group comprises light emitting diode and the stabilivolt identical with light emitting diode quantity of a plurality of series connection, the stabilivolt of the corresponding reversal connection in parallel of each light emitting diode, formation the first connection in series-parallel branch road in parallel with the first loudspeaker Y1 after the second resistance R 2 is connected with the light emitting diode group, the positive pole of the first connection in series-parallel branch road is connected with the positive pole of rechargeable battery E, output switch KJ one end of often opening of the first relay J 1 is connected with rechargeable battery E negative pole, and its other end is connected with the negative pole of the first connection in series-parallel branch road.The light emitting diode group preferably includes the light emitting diode of three series connection in the present embodiment, three light emitting diodes are respectively the first stabilivolt DW1, the second stabilivolt DW2 and the 3rd stabilivolt DW3 that is parallel with respectively reversal connection on the first LED 1, the second LED 2 and 3, three light emitting diodes of the 3rd LED.
Above content is the further description of the utility model being done in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not breaking away from other embodiments that draw under the technical solution of the utility model, all should be included in the protection domain of the present utility model.
Claims (8)
1. prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: comprise warning circuit and the isolating transformer (B), rectification unit (3), filtering circuit, mu balanced circuit and the rechargeable battery (E) that connect in turn, described isolating transformer (B) is connected with phase line input line (1) and zero line input line (2), is connected with the first relay (J1) between described phase line input line (1) and the zero line input line (2); Described mu balanced circuit comprises the first triode (Q1), the 3rd resistance (R3) and the 4th stabilivolt (DW4), the collector and emitter of described the first triode (Q1) respectively with the anodal E of being connected with rechargeable battery of filtering circuit) positive pole is connected, connection between described the 3rd resistance (R3) end and the first triode (Q1) collector and the filtering circuit positive pole, its other end is connected with the base stage of the first triode (Q1), described the 4th stabilivolt (DW4) negative pole is connected on the circuit between the 3rd resistance (R3) and the first triode (Q1) base stage, and the 4th stabilivolt (DW4) is anodal to be connected with rechargeable battery (E) negative pole; Described warning circuit comprises the second resistance (R2), the first loudspeaker (Y1) and light emitting diode group, described light emitting diode group comprises light emitting diode and the stabilivolt identical with light emitting diode quantity of a plurality of series connection, the stabilivolt of the corresponding reversal connection in parallel of each light emitting diode, formation the first connection in series-parallel branch road in parallel with the first loudspeaker (Y1) after described the second resistance (R2) is connected with the light emitting diode group, the positive pole of the first connection in series-parallel branch road is connected with the positive pole of rechargeable battery (E), output switch (KJ) end of often opening of described the first relay (J1) is connected with rechargeable battery (E) negative pole, and its other end is connected with the negative pole of the first connection in series-parallel branch road.
2. according to claim 1ly prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: described mu balanced circuit also comprises the second electric capacity (C2), connection between described the second electric capacity (C2) end and the first triode (Q1) base stage and the 3rd resistance (R3), its other end is connected with rechargeable battery (E) negative pole.
3. according to claim 1ly prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: described the first triode (Q1) is the NPN triode.
4. according to claim 1ly prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: described rectification unit (3) comprises two input ends and two output terminals, two input ends of rectification unit (3) are connected with isolating transformer (B), two output terminals of rectification unit (3) respectively with the filtering circuit negative pole be connected triode (Q1) collector and be connected.
5. according to claim 4ly prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: described filtering circuit comprises the first resistance (R1) and the first electric capacity (C1), described the first resistance (R1) end is connected with rectification unit (3) output terminal, its other end is connected with rechargeable battery (E) negative pole, connection between described the first electric capacity (C1) end and rectification unit (3) output terminal and the first resistance (R1), the connection between its other end and rectification unit (3) output terminal and the first triode (Q1) collector.
6. according to claim 4ly prevent the stolen alarm of transformer in the low-voltage power line, it is characterized in that: described rectification unit (3) is bridge rectifier circuit.
7. any one is described according to claim 1～6 prevents the stolen alarm of transformer in the low-voltage power line, it is characterized in that: be in series with fusible link (FU) on the described phase line input line (1).
8. any one is described according to claim 1～6 prevents the stolen alarm of transformer in the low-voltage power line, and it is characterized in that: described light emitting diode group comprises the light emitting diode of three series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303902 CN203242090U (en) | 2013-05-30 | 2013-05-30 | Alarm for preventing transformer in low-voltage power line from being stolen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320303902 CN203242090U (en) | 2013-05-30 | 2013-05-30 | Alarm for preventing transformer in low-voltage power line from being stolen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203242090U true CN203242090U (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320303902 Expired - Fee Related CN203242090U (en) | 2013-05-30 | 2013-05-30 | Alarm for preventing transformer in low-voltage power line from being stolen |
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| Country | Link |
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| CN (1) | CN203242090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280054A (en) * | 2013-05-30 | 2013-09-04 | 成都荣耀科技有限公司 | Transformer anti-theft system of low-voltage electric power circuit |
-
2013
- 2013-05-30 CN CN 201320303902 patent/CN203242090U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280054A (en) * | 2013-05-30 | 2013-09-04 | 成都荣耀科技有限公司 | Transformer anti-theft system of low-voltage electric power circuit |
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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: 20131016 Termination date: 20140530 |