CN202883014U - Sound-light alarm loudspeaker box - Google Patents
Sound-light alarm loudspeaker box Download PDFInfo
- Publication number
- CN202883014U CN202883014U CN 201220563834 CN201220563834U CN202883014U CN 202883014 U CN202883014 U CN 202883014U CN 201220563834 CN201220563834 CN 201220563834 CN 201220563834 U CN201220563834 U CN 201220563834U CN 202883014 U CN202883014 U CN 202883014U
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- CN
- China
- Prior art keywords
- sound
- light alarm
- loudspeaker box
- resistance
- resistor
- 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
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Abstract
The utility model discloses a sound-light alarm loudspeaker box. The sound-light alarm loudspeaker box comprises a loudspeaker box body, a sound-light alarm and a controller. The controller comprises a resistor R1, a resistor R2, a power supply and a bridge circuit. A point a1 of the bridge circuit is connected with the negative electrode of the power supply and one end of the resistor R1, a point a2 of the bridge circuit is connected with the positive electrode of the power supply and one end of the resistor R2, the other end of the resistor R2 is connected with an input end of the sound-light alarm, an output end of the sound-light alarm is connected with the emitting electrode of a triode, the collector electrode of the triode is connected with the other end of the resistor R1, and the base electrode of the triode is connected with the loudspeaker box body. By means of the sound-light alarm loudspeaker box, sound alarm can be achieved, and besides sound is clear and loud. The sound-light alarm loudspeaker box is simple and practical, convenient to install, low in cost, high in performance-cost ratio, attractive in appearance, dustproof and high in light alarm brightness.
Description
Technical field
The utility model relates to a kind of warning device, espespecially a kind of sound and light alarm audio amplifier for Coalmine's Monitoring and Controlling System.
Background technology
In coal mining enterprise, some monitoring and controlling systems often are installed, in practical operation, when the data of requirement monitoring transfinite, just begin recorded speech of loop play, can warn effectively clearly the staff.Clear in the monitoring and controlling system check criteria in colliery, monitoring and controlling system must possess acoustic-optic alarm.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of cost low, simple in structure, the practical sound and light alarm audio amplifier that is used for Coalmine's Monitoring and Controlling System.
The utility model is a kind of sound and light alarm audio amplifier, comprise audio amplifier, audible-visual annunciator, controller, described controller comprises resistance R 1, resistance R 2, power supply and a bridge circuit, the a1 point of described bridge circuit is connected with the end that the negative pole of power supply is connected with resistance R, the a2 point is connected with the end that the positive pole of power supply is connected with resistance R, and the other end of resistance R 2 connects the input of audible-visual annunciator, and the output of audible-visual annunciator connects the emitting stage of triode, the other end of the colelctor electrode contact resistance R1 of triode, three grades base stage connects audio amplifier.
Useful technique effect of the present utility model is: 1, the utility model can be realized audio alert, and clear sound is loud and clear.2, equipment is simple and practical, and is easy for installation.3, cost is low, and cost performance is high.4, aesthetic in appearance, dustproof, light warning high brightness.
Description of drawings
Fig. 1: the utility model circuit controling drawing.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
The utility model is a kind of sound and light alarm audio amplifier, comprise audio amplifier 1, audible-visual annunciator 2, controller, described controller comprises resistance R 1, resistance R 2, power supply and a bridge circuit, 1 end of being connected with resistance R with the negative pole of power supply of a of described bridge circuit is connected, the a2 point is connected with the end that the positive pole of power supply is connected with resistance R, and the other end of resistance R 2 connects the input of audible-visual annunciator, and the output of audible-visual annunciator connects the emitting stage of triode, the other end of the colelctor electrode contact resistance R1 of triode, three grades base stage connects audio amplifier.When the data of monitoring equipment collection reached high alarm setting, the electronic component of active controller triggered audible-visual annunciator by controller and carries out sound and light alarm.
The above only is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (1)
1. sound and light alarm audio amplifier, it is characterized in that, comprise audio amplifier, audible-visual annunciator, controller, described controller comprises resistance R 1, resistance R 2, power supply and a bridge circuit, 1 end of being connected with resistance R with the negative pole of power supply of a of described bridge circuit is connected, and the a2 point is connected with the end that the positive pole of power supply is connected with resistance R, the other end of resistance R 2 connects the input of audible-visual annunciator, the output of audible-visual annunciator connects the emitting stage of triode, the other end of the colelctor electrode contact resistance R1 of triode, and three grades base stage connects audio amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563834 CN202883014U (en) | 2012-10-31 | 2012-10-31 | Sound-light alarm loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563834 CN202883014U (en) | 2012-10-31 | 2012-10-31 | Sound-light alarm loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883014U true CN202883014U (en) | 2013-04-17 |
Family
ID=48074454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220563834 Expired - Fee Related CN202883014U (en) | 2012-10-31 | 2012-10-31 | Sound-light alarm loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883014U (en) |
-
2012
- 2012-10-31 CN CN 201220563834 patent/CN202883014U/en not_active Expired - Fee Related
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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: 20130417 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |