CN202307765U - Audible and visual alarm fuse device - Google Patents
Audible and visual alarm fuse device Download PDFInfo
- Publication number
- CN202307765U CN202307765U CN2011203954386U CN201120395438U CN202307765U CN 202307765 U CN202307765 U CN 202307765U CN 2011203954386 U CN2011203954386 U CN 2011203954386U CN 201120395438 U CN201120395438 U CN 201120395438U CN 202307765 U CN202307765 U CN 202307765U
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- Prior art keywords
- current transformer
- audible
- fuse
- visual alarm
- circuit
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Abstract
The utility model discloses an audible and visual alarm fuse element device, which comprises an electric fuse F, a current transformer T and an audible and visual alarm system, wherein the electric fuse F is connected to the primary coil of the current transformer T in series; the audible and visual alarm system comprises a rectifying circuit formed by connecting light emitting diodes D1 and D2, a diode D3 and a capacitor C in series, and a sound production circuit formed by connecting the output end of an audio frequency alarm chip integrated circuit (IC) and a buzzer phone PH; the light emitting diodes D1 and D2 are respectively connected to the secondary coil of the current transformer T in parallel; the rectifying circuit is connected to two ends of the secondary coil of the current transformer T in parallel; one input end of the buzzer phone PH is connected with the sliding end of a sliding resistor R; the other input end of the buzzer phone PH is connected to the lower end of the sliding resistor R; and a capacitor C is connected between the upper end and the lower end of the sliding resistor R. According to the audible and visual alarm fuse element device, the electricity utilization condition in a circuit can be detected and displayed at any time, an alarm is given in advance before the fuse is fused, and therefore the accident of power failure is effectively avoided.
Description
Technical field
The utility model relates to a kind of family expenses or factory power supply system 220V loop current overload protection warning device, is specially a kind of sound and light alarm fuse equipment.
Background technology
In the prior art, fuse equipment structure commonly used is between two pins of fuse body, to be electrically connected an electric fuse to constitute, fuse failure during current overload, and current supply circuit opens circuit.At present most of MCC dishes dig the system loop and all do not have the electric current indication in the factory, and therefore the monitoring to 220V control loop running status is not very effective, before fuse failure, can not report to the police in advance, cause load not work or cause power outage.
The utility model content
The purpose of the utility model provides a kind of sound and light alarm fuse equipment, to solve fuse failure in the prior art, after current supply circuit opens circuit, can not in time report to the police, and causes load not worked or causes power outage etc.
For arriving above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of sound and light alarm fuse equipment; Comprise electric fuse F, current transformer T and acoustooptic alarm system; It is characterized in that: said electric fuse F is connected on the primary coil of current transformer T, and said acoustooptic alarm system comprises light-emitting diode D1, D2, the rectification circuit that diode D3 connects with capacitor C and constitutes; The phonation circuit that the output of audio alarm chip IC and buzzer PH connect and compose; Said light-emitting diode D1, D2 are connected in parallel on respectively on the secondary coil of current transformer T, and said rectification circuit is connected in parallel on the secondary coil two ends of current transformer T, and the input of said buzzer PH connects the sliding end of slide rheostat R; Another input connects the lower end of slide rheostat R, connects capacitor C between the upper end of slide rheostat R, the lower end.
The beneficial effect of the utility model is:
The utility model can detection at any time and display circuit in the electricity consumption situation, before fuse failure, can report to the police in advance, and report to the police and comprise two kinds of approach of acousto-optic, the generation of having stopped power outage effectively.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1; The utility model comprises electric fuse F, current transformer T and acoustooptic alarm system; Electric fuse F is connected on the primary coil of current transformer T, and acoustooptic alarm system comprises light-emitting diode D1, D2, the rectification circuit that diode D3 connects with capacitor C and constitutes; The phonation circuit that the output of audio alarm chip IC and buzzer PH connect and compose; Light-emitting diode D1, D2 are connected in parallel on respectively on the secondary coil of current transformer T, and rectification circuit is connected in parallel on the secondary coil two ends of current transformer T, and the input of buzzer PH connects the sliding end of slide rheostat R; Another input connects the lower end of slide rheostat R, connects capacitor C between the upper end of slide rheostat R, the lower end.
Seal in a Subminiature current transformer T among the major loop 220V, with passing to acoustooptic alarm system after the principal current unsteady flow, drive acoustooptic alarm system work, the effect of current transformer T is from main circuit, to obtain the very small percentage electric energy to offer acoustooptic alarm system.Because the primary impedance of current transformer T is very little, when it was serially connected in the main circuit normal the use, the voltage drop on the general primary coil was less than 0.1V (being merely two one thousandths of 220V voltage), so can think main circuit is not influenced.Light-emitting diode D1, D2 are respectively one red one green two light-emitting diodes, and model adopts 2EF31, utilizes the tap of current transformer T; Red light emitting diodes D1 is connected in the less tap of the number of turn, and green LED D2 is connected in the bigger tap of the number of turn, and electric current is about 0.5A in main circuit; Green LED D2 is luminous; When electric current was increased to about 1.1～1.2A, red light emitting diodes D1 also began luminous, to reach the purpose of warning.Like need adjustment operating current source, can select current transformer for use, to detect corresponding current value with required variation tap.
Diode D3 connects with capacitor C and constitutes a rectification circuit, and it is that direct voltage is superimposed upon slide rheostat R (on slide rheostat 220 Ω/0.25W) that current transformer T secondary is recorded AC rectification.The output of this slide rheostat R is connected on the audio alarm chip IC.When the electric current of main circuit reaches certain value, start the audio alarm chip IC, can select the different audio alarm chip to emit different alarm sounds during practical application as required.The starting current value of audio alarm chip IC can realize (adjustable range 0.4A～5A) through regulating slide rheostat R.
Claims (1)
1. sound and light alarm fuse equipment; Comprise electric fuse F, current transformer T and acoustooptic alarm system; It is characterized in that: said electric fuse F is connected on the primary coil of current transformer T, and said acoustooptic alarm system comprises light-emitting diode D1, D2, the rectification circuit that diode D3 connects with capacitor C and constitutes; The phonation circuit that the output of audio alarm chip IC and buzzer PH connect and compose; Said light-emitting diode D1, D2 are connected in parallel on respectively on the secondary coil of current transformer T, and said rectification circuit is connected in parallel on the secondary coil two ends of current transformer T, and the input of said buzzer PH connects the sliding end of slide rheostat R; Another input connects the lower end of slide rheostat R, connects capacitor C between the upper end of slide rheostat R, the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203954386U CN202307765U (en) | 2011-10-18 | 2011-10-18 | Audible and visual alarm fuse device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203954386U CN202307765U (en) | 2011-10-18 | 2011-10-18 | Audible and visual alarm fuse device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307765U true CN202307765U (en) | 2012-07-04 |
Family
ID=46376608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203954386U Expired - Fee Related CN202307765U (en) | 2011-10-18 | 2011-10-18 | Audible and visual alarm fuse device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675032A (en) * | 2013-11-30 | 2014-03-26 | 成都国科海博信息技术股份有限公司 | Detection control circuit |
| CN105826146A (en) * | 2016-03-25 | 2016-08-03 | 孟书芳 | Fuse intelligent alarm lamp |
-
2011
- 2011-10-18 CN CN2011203954386U patent/CN202307765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675032A (en) * | 2013-11-30 | 2014-03-26 | 成都国科海博信息技术股份有限公司 | Detection control circuit |
| CN105826146A (en) * | 2016-03-25 | 2016-08-03 | 孟书芳 | Fuse intelligent alarm lamp |
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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: 20120704 Termination date: 20141018 |
|
| EXPY | Termination of patent right or utility model |