CN201193538Y - Self-powered air door alarm - Google Patents
Self-powered air door alarm Download PDFInfo
- Publication number
- CN201193538Y CN201193538Y CNU2008200095586U CN200820009558U CN201193538Y CN 201193538 Y CN201193538 Y CN 201193538Y CN U2008200095586 U CNU2008200095586 U CN U2008200095586U CN 200820009558 U CN200820009558 U CN 200820009558U CN 201193538 Y CN201193538 Y CN 201193538Y
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- air door
- self
- circuit
- power supply
- powered air
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Abstract
The utility model provides a self-powered air door warner which comprises a power supply, a voltage detection circuit, an air door position sensor and a sound warning circuit. A detection signal of the air door position sensor is connected with the sound warning circuit. The power supply is a nickel hydride rechargeable battery pack. The voltage detection circuit is connected with the power supply and is provided with an under voltage indicator light. The self-powered air door warner has the advantages that the nickel hydride rechargeable battery pack is used for supplying power; the voltage detection circuit is arranged; the prior wired power supply form is changed into the self power supply form, and the self-powered air door warner can detect the power supply by self and prompt the user for batter under voltage charge warning to prevent that the warning circuit can not work normally; accordingly, the self-powered air door warner improves the underground working reliability of the product at a coal mine, can not cause the result that nobody knows about the air door under the state of air current short circuit; and the self-powered air door warner is convenient for the user and provides the safe production of the coal mine with reliable guarantee.
Description
Technical field
The utility model relates to warning device, particularly a kind of self-powered air door alarm.
Background technology
Under coal mine, near being arranged, many air doors do not have power supply, want to install and use the air door alarm that needs wired power supply and just must lay very long supply line, then need cable laying to guide power supply into air door, if apart from each other because the environment under the coal mine is special, bumps and when sustaining damage when cable runs into pullling of external force or pounds, will cause power interruptions, come hidden danger for the colliery safety belt.Simultaneously, the maintenance of cable also brings many burdens to routine work, has not only wasted fund, manpower but also waste material and time; Laying-out can not make air door be in no supervision state again, causes distinguished and admirable short circuit and the consequence that Nobody Knows.This makes air door alarm user feel very inconvenient.Current, be resolved for making the problems referred to above, be badly in need of coal mine lower wind door warning device is improved.
The utility model content
The purpose of this utility model is to provide a kind of mode with original wired power supply to change self-powered mode into, and can detect power supply voluntarily, thereby improve product functional reliability, self-powered air door alarm easy to use under coal mine greatly.
For achieving the above object, the utility model self-powered air door alarm, comprise power supply, damper positions sensor and sound warning circuit, the detection signal of described damper positions sensor is connected to the audible alarm circuit, also comprises voltage detecting circuit, and described power supply adopts rechargeable Ni-H 2 formula battery pack, described voltage detecting circuit links to each other with described power supply, and described voltage detecting circuit is provided with under-voltage indicator lamp.
The utility model self-powered air door alarm, wherein said voltage detecting circuit comprises the divider of being made up of resistance and adjustable resistance, the compound transistor circuit and first diode formed by PNP triode and first collector resistance and the 2nd NPN triode and the 3rd collector resistance, second diode and a NPN triode, the node of described resistance and adjustable resistance links to each other with the base stage of described PNP triode, the colelctor electrode of a described NPN triode links to each other with the emitter stage of described PNP triode, the emitter stage of a described NPN triode links to each other with the emitter stage of described the 2nd NPN triode, between the base stage of described first diode and a colelctor electrode that is connected to described PNP triode after described second diode forward is connected and a described NPN triode, described under-voltage indicator lamp adopts LED light, and described LED light is connected with described the 3rd collector resistance forward.
The utility model self-powered air door alarm, wherein said damper positions sensor adopts tongue tube, and the contact series connection of tongue tube is between power supply and audible alarm circuit.
The utility model self-powered air door alarm, wherein said audible alarm circuit comprise sound circuit, power amplifier and the loudspeaker that links to each other successively.
The utility model self-powered air door alarm, it is the chip of RHS1 that wherein said sound circuit adopts model, it is the chip of LEA2025B that power amplifier adopts model.
The utility model self-powered air door alarm, the supply voltage of wherein said rechargeable Ni-H 2 formula battery pack is 7.5V.
The utility model self-powered air door alarm, wherein said power supply forward in current supply circuit is connected to the protection diode.
The advantage of the utility model self-powered air door alarm is: owing to adopt the battery-powered power supply of rechargeable Ni-H 2 formula, be provided with voltage detecting circuit, change the mode of original wired power supply into self-powered mode, and can detect voluntarily power supply, the user is carried out the under-voltage charging warning prompt of battery, in case warning circuit cisco unity malfunction, thereby improve product functional reliability under coal mine greatly, can not cause air door that the state of distinguished and admirable short circuit takes place and the consequence that Nobody Knows, the user is felt easily, for the safety in production in colliery provides reliable guarantee.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that the purpose of this utility model, feature and advantage are had deep understanding.
Description of drawings
Fig. 1 is the block diagram of the utility model self-powered air door alarm;
The circuit diagram of Fig. 2 the utility model self-powered air door alarm.
The specific embodiment
With embodiment technical scheme is elaborated below.
With reference to Fig. 1, the utility model self-powered air door alarm is provided with power supply, sensor, voltage detecting circuit, sound circuit, power amplifier and loudspeaker.With reference to Fig. 1, self-powered air door alarm comprises power supply 1, damper positions sensor 2, voltage detecting circuit 3 and the audible alarm circuit that is made of the sound circuit 4 that links to each other successively, power amplifier 5 and loudspeaker 6.Power supply 1 adopts rechargeable Ni-H 2 formula battery pack, and the supply voltage of rechargeable Ni-H 2 formula battery pack is 7.5V.Power supply 1 forward in current supply circuit is connected to protection diode D1.Diode D1 is anti-reverse device, if power supply connects instead, can protect circuitry, with burnout-proof.Voltage detecting circuit 3 is provided with the under-voltage indicator lamp of LED.Damper positions sensor 2 adopts tongue tube K, and the contact series connection of tongue tube K is between power supply 1 and audible alarm circuit.
In the embodiment of the utility model self-powered air door alarm, voltage detecting circuit 3 links to each other with power supply 1, voltage detecting circuit 3 comprises the divider of being made up of resistance R 3 and adjustable resistance RW1, the compound transistor circuit and the first diode D2 that form by PNP triode T1 and the first collector resistance R5 and the 2nd NPN triode T3 and the 3rd collector resistance R4, the second diode D3 and a NPN triode T2, the node of resistance R 3 and adjustable resistance RW1 links to each other with the base stage of PNP triode T1, the colelctor electrode of the one NPN triode T2 links to each other with the emitter stage of PNP triode T1, the emitter stage of the one NPN triode T2 links to each other with the emitter stage of the 2nd NPN triode T3, between the base stage of the first diode D2 and a colelctor electrode that is connected to PNP triode T1 after the second diode D3 forward is connected and a NPN triode T2, LED light is connected with the 3rd collector resistance R4 forward.
In the audible alarm circuit, with reference to Fig. 2, IC 1 is a sound circuit, the energising back is at the continuous voice signal repeatedly of its 7 pin output, this signal is sent into 10 pin of power amplifier IC2 after the dividing potential drop of resistance R 2 and adjustable resistance RW2, the signal after amplifying exports loudspeaker 6 to by 2 pin and 15 pin of IC2.Capacitor C 7, C14 are feedback condenser, and C3 is a coupling capacitor, and C6, C5 are feed-through capacitor.
The utility model self-powered air door alarm, it is the chip of RHS1 that sound circuit IC1 adopts model, it is the chip of LEA2025B that power amplifier IC2 adopts model.
Work to the utility model self-powered air door alarm main circuit describes below.
Under coal mine, air door must close, and to guarantee that distinguished and admirable in the passage constantly it is to open that the method for the installation of tongue tube K makes in contact just often, the audible alarm circuit is not worked.Promptly after air door closed, moved (disconnection) tongue tube K contact, and promptly just often the audible alarm circuit is not worked.When air door does not shut, can cause distinguished and admirable short circuit, be unfavorable for the passage blowdown, at this moment be failure to actuate (connection) in the contact of tongue tube K, and the audible alarm circuit is connected and is started working loudspeaker 6 sounding.
With reference to Fig. 2, the voltage detecting circuit 3 of self-powered air door alarm is formed mu balanced circuit by triode T2, diode D2, D3, and voltage is 2.1～2.3V.When supply voltage was enough, because the emitter stage of triode T1 is by voltage stabilizing, base potential was higher than the emitter stage current potential, causes not conducting of collector and emitter, also not conducting of triode T3 this moment, and under-voltage indicator lamp luminous tube LED is not luminous; When supply voltage is lower than 5V, the base potential of triode T1 descends thereupon, make the collector and emitter conducting of triode T1, luminous tube LED is luminous, the user is carried out the under-voltage charging warning prompt of battery, in case the warning circuit cisco unity malfunction can prevent that also rechargeable battery is owing to brownout causes damage.
By using at the scene, the utility model self-powered air door alarm control action sensitivity, easy to use, performance is enough to satisfy practical application, for the safety in production in colliery provides reliable guarantee.
Embodiment recited above is described preferred implementation of the present utility model, is not that design of the present utility model and scope are limited.Under the prerequisite that does not break away from the utility model design concept; various modification and improvement that this area ordinary person makes the technical solution of the utility model; all should drop into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (7)
1. self-powered air door alarm, comprise power supply (1), damper positions sensor (2) and sound warning circuit, the detection signal of described damper positions sensor (2) is connected to the audible alarm circuit, it is characterized in that: also comprise voltage detecting circuit (3), described power supply (1) adopts rechargeable Ni-H 2 formula battery pack, described voltage detecting circuit (3) links to each other with described power supply (1), and described voltage detecting circuit (3) is provided with under-voltage indicator lamp.
2. self-powered air door alarm according to claim 1, it is characterized in that: wherein said voltage detecting circuit (3) comprises the divider of being made up of resistance (R3) and adjustable resistance (RW1), compound transistor circuit and first diode (D2) formed by PNP triode (T1) and first collector resistance (R5) and the 2nd NPN triode (T3) and the 3rd collector resistance (R4), second diode (D3) and a NPN triode (T2), the node of described resistance (R3) and adjustable resistance (RW1) links to each other with the base stage of described PNP triode (T1), the colelctor electrode of a described NPN triode (T2) links to each other with the emitter stage of described PNP triode (T1), the emitter stage of a described NPN triode (T2) links to each other with the emitter stage of described the 2nd NPN triode (T3), between the base stage of described first diode (D2) and a colelctor electrode that is connected to described PNP triode (T1) after described second diode (D3) forward is connected and a described NPN triode (T2), described under-voltage indicator lamp adopts LED light, and described LED light is connected with described the 3rd collector resistance (R4) forward.
3. self-powered air door alarm according to claim 1 and 2 is characterized in that: wherein said damper positions sensor (2) adopts tongue tube (K), and the contact series connection of described tongue tube (K) is between described power supply (1) and described audible alarm circuit.
4. self-powered air door alarm according to claim 3 is characterized in that: wherein said audible alarm circuit comprises sound circuit (4), power amplifier (5) and the loudspeaker (6) that links to each other successively.
5. according to the self-powered air door alarm of claim 4, it is characterized in that: it is the chip of RHS1 that wherein said sound circuit (4) adopts model, and it is the chip of LEA2025B that power amplifier (5) adopts model.
6. according to the self-powered air door alarm of claim 5, it is characterized in that: the supply voltage of wherein said rechargeable Ni-H 2 formula battery pack is 7.5V.
7. self-powered air door alarm according to claim 6 is characterized in that: wherein said power supply (1) forward in current supply circuit is connected to protection diode (D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200095586U CN201193538Y (en) | 2008-05-16 | 2008-05-16 | Self-powered air door alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200095586U CN201193538Y (en) | 2008-05-16 | 2008-05-16 | Self-powered air door alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201193538Y true CN201193538Y (en) | 2009-02-11 |
Family
ID=40393076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200095586U Expired - Fee Related CN201193538Y (en) | 2008-05-16 | 2008-05-16 | Self-powered air door alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201193538Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670515A (en) * | 2013-12-26 | 2014-03-26 | 中国矿业大学 | Underground coal mine air-door fault early warning system |
| CN105370319A (en) * | 2015-10-30 | 2016-03-02 | 苏州扬佛自动化设备有限公司 | Coal mine safety monitoring system |
-
2008
- 2008-05-16 CN CNU2008200095586U patent/CN201193538Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670515A (en) * | 2013-12-26 | 2014-03-26 | 中国矿业大学 | Underground coal mine air-door fault early warning system |
| CN103670515B (en) * | 2013-12-26 | 2015-10-28 | 中国矿业大学 | A kind of coal mine underground air door fault early warning system |
| CN105370319A (en) * | 2015-10-30 | 2016-03-02 | 苏州扬佛自动化设备有限公司 | Coal mine safety monitoring system |
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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: 20090211 Termination date: 20100516 |