CN203299977U - Disconnected type alarm for electrical equipment - Google Patents
Disconnected type alarm for electrical equipment Download PDFInfo
- Publication number
- CN203299977U CN203299977U CN2013203705217U CN201320370521U CN203299977U CN 203299977 U CN203299977 U CN 203299977U CN 2013203705217 U CN2013203705217 U CN 2013203705217U CN 201320370521 U CN201320370521 U CN 201320370521U CN 203299977 U CN203299977 U CN 203299977U
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- integrated chip
- diode
- resistance
- audio frequency
- triode
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Abstract
The utility model discloses a disconnected type alarm for electrical equipment, comprising a power supply, a switch, an anti-theft lead, a capacitor, a unidirectional thyristor, a first resistor, a second resistor, a third resistor, a first diode, a second diode, a triode, a loudspeaker and an integrated chip. When the monitored anti-theft lead is broken or cut to be short, the unidirectional thyristor is triggered and conducted, the integrated chip obtains a working voltage, audio signals generated by the audio integrated chip is output from the output end and is amplified through the triode, so as to push the loudspeaker to produce alarming sounds. The disconnected type alarm for electrical equipment has the advantages of simple structure, easy manufacturing, large monitoring range and the like, especially has the advantages of simple structure, few component consumption, small size and large alarming sound, and is conducive to the promotion.
Description
Technical field
The utility model relates to a kind of alarm of power equipment, relates in particular to a kind of alarm of break line type for power equipment.
Background technology
In power industry, winding wire is the main and crucial starting material of motor, electrical equipment, household electrical appliance, telecommunication, electronic instrument electromagnetism winding, and winding wire is the metal copper wire for the coiling solenoid.Because winding wire is expensive, often stolen.Existing break line type alarm arrangement is complicated, adopt that element is many, cost is high, making is complicated, can to supervise anti-scope very little, and warning function is not strong.
The utility model content
The purpose of this utility model provides a kind of alarm of break line type for power equipment with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
the utility model comprises power supply, switch, antitheft wire, electric capacity, unidirectional thyristor, the first resistance, the second resistance, the 3rd resistance, the first diode, the second diode, triode, loudspeaker and audio frequency integrated chip, the positive pole of described power supply is connected with the first end of described switch, the negative pole while of described power supply and the first end of electric capacity, antitheft wire, the negative pole of described audio frequency integrated chip be connected the emitter of triode and connect, the second end of described switch is simultaneously and the second end of described electric capacity, the first end of described the first resistance and the anodic bonding of described unidirectional thyristor, the second end of described the first resistance be connected the gate pole of unidirectional thyristor and with the second end of described antitheft wire, be connected simultaneously, the negative pole of described unidirectional thyristor simultaneously with the positive pole of described the first diode be connected the first end of loudspeaker and be connected, the anodic bonding of the negative electrode of described the first diode and described the second diode, the negative electrode of described the second diode is connected with the input end of described audio frequency integrated chip, the output terminal of described audio frequency integrated chip is connected with the base stage of described triode, the discharge end of described audio frequency integrated chip is connected with the first end of the second resistance, the reset terminal of described audio frequency integrated chip is connected with the second end of described the second resistance, the collector of described triode is connected with the second end of described loudspeaker.
The beneficial effects of the utility model are:
The utility model is exclusively used in the break line type alarm of power equipment, and it has low, the easy making of cost, can supervise the advantages such as anti-scope is large, and is especially simple in structure, adopt that element is few, volume is little, and alarm sound is large, is conducive to promote.
Description of drawings
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
as shown in Figure 1: the utility model comprises power supply G, K switch, capacitor C, unidirectional thyristor VS, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first diode VD1, the second diode VD2, triode VT, the integrated chip IC of loudspeaker B and audio frequency, the positive pole of power supply G is connected with the first end of K switch, the negative pole while of power supply G and the first end of capacitor C, antitheft wire PP1, the negative pole of the integrated chip IC of audio frequency is connected emitter and is connected with triode VT, the second end of K switch simultaneously and the second end of capacitor C, the anodic bonding of the first end of the first resistance R 1 and unidirectional thyristor VS, the second end of the first resistance R 1 is connected gate pole and with the second end of antitheft wire PP1, is connected simultaneously with unidirectional thyristor VS, the negative pole of unidirectional thyristor VS simultaneously and the positive pole of the first diode VD1 be connected first end with loudspeaker B and be connected, the anodic bonding of the negative electrode of the first diode VD1 and the second diode VD2, the negative electrode of the second diode VD2 is connected with the input end of the integrated chip IC of audio frequency, the output terminal of the integrated chip IC of audio frequency is connected with the base stage of triode VT, the discharge end of the integrated chip IC of audio frequency is connected with the first end of the second resistance R 2, the reset terminal of the integrated chip IC of audio frequency is connected with the second end of the second resistance R 2, the collector of triode VT is connected with the second end of loudspeaker B.At ordinary times, when the antitheft wire PP1 between P-P1 did not disconnect, the control utmost point of its unidirectional thyristor VS and ground end short circuit, made unidirectional thyristor VS Triggerless and be in off state, and the integrated chip IC of audio frequency is without working power, therefore loudspeaker B sounding not.In case robber invasion, after touching antitheft wire PP1 disconnected or cutting short, unidirectional thyristor VS is triggered and conducting, and the integrated chip IC of audio frequency obtains operating voltage.At this moment, the sound signal that the integrated chip IC of audio frequency produces is exported from output terminal, and through triode VT, amplifies, thereby promote loudspeaker B, sends chimes of doom.
Claims (1)
1. a break line type alarm that is used for power equipment, is characterized in that: comprise power supply, switch, antitheft wire, electric capacity, unidirectional thyristor, the first resistance, the second resistance, the 3rd resistance, the first diode, the second diode, triode, loudspeaker and audio frequency integrated chip, the positive pole of described power supply is connected with the first end of described switch, the negative pole while of described power supply and the first end of electric capacity, antitheft wire, the negative pole of described audio frequency integrated chip be connected the emitter of triode and connect, the second end of described switch is simultaneously and the second end of described electric capacity, the first end of described the first resistance and the anodic bonding of described unidirectional thyristor, the second end of described the first resistance be connected the gate pole of unidirectional thyristor and with the second end of described antitheft wire, be connected simultaneously, the negative pole of described unidirectional thyristor simultaneously with the positive pole of described the first diode be connected the first end of loudspeaker and be connected, the anodic bonding of the negative electrode of described the first diode and described the second diode, the negative electrode of described the second diode is connected with the input end of described audio frequency integrated chip, the output terminal of described audio frequency integrated chip is connected with the base stage of described triode, the discharge end of described audio frequency integrated chip is connected with the first end of the second resistance, the reset terminal of described audio frequency integrated chip is connected with the second end of described the second resistance, the collector of described triode is connected with the second end of described loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203705217U CN203299977U (en) | 2013-06-25 | 2013-06-25 | Disconnected type alarm for electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203705217U CN203299977U (en) | 2013-06-25 | 2013-06-25 | Disconnected type alarm for electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299977U true CN203299977U (en) | 2013-11-20 |
Family
ID=49575973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203705217U Expired - Fee Related CN203299977U (en) | 2013-06-25 | 2013-06-25 | Disconnected type alarm for electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203299977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252753A (en) * | 2013-06-25 | 2014-12-31 | 成都昊地科技有限责任公司 | Broken line type alarm device for electric equipment |
| CN105592396A (en) * | 2015-12-23 | 2016-05-18 | 上海力申科学仪器有限公司 | Medical instrument loudspeaker abnormity on-line real-time alarm device |
-
2013
- 2013-06-25 CN CN2013203705217U patent/CN203299977U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104252753A (en) * | 2013-06-25 | 2014-12-31 | 成都昊地科技有限责任公司 | Broken line type alarm device for electric equipment |
| CN105592396A (en) * | 2015-12-23 | 2016-05-18 | 上海力申科学仪器有限公司 | Medical instrument loudspeaker abnormity on-line real-time alarm device |
| CN105592396B (en) * | 2015-12-23 | 2019-11-19 | 上海力申科学仪器有限公司 | The extremely online real time warning device of the loudspeaker of medical instruments and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140625 |
|
| EXPY | Termination of patent right or utility model |