CN207440939U - A kind of super loud type alarm - Google Patents
A kind of super loud type alarm Download PDFInfo
- Publication number
- CN207440939U CN207440939U CN201721556812.XU CN201721556812U CN207440939U CN 207440939 U CN207440939 U CN 207440939U CN 201721556812 U CN201721556812 U CN 201721556812U CN 207440939 U CN207440939 U CN 207440939U
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- China
- Prior art keywords
- circuit
- loud
- housing
- loud speaker
- super
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- 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.)
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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a kind of super loud type alarms, including housing, circuit part and loud speaker, the housing is cylindrical housings, housing side is provided with organ for resonance, organ for resonance is internally provided with to fix the fixed seat of loud speaker, loud speaker is connected to the output terminal of the circuit part, and it is fixed in the housing, housing upper end inner wall is provided with " 7 " type buckle and " II " type card slot, the circuit part includes power circuit, square wave generation circuit, current amplification circuit and booster circuit, the utility model effectively raises the power of loud speaker after boosting using booster circuit, it is big to export buzzer decibel, transmitting range is remote, tone is clear, improve the resolution in noisy environment.Meanwhile booster circuit also acts voltage buffer action, has isolated signal circuit section and power output part, improves circuit anti-interference ability.
Description
Technical field
The utility model is related to a kind of alarms, are specifically a kind of super loud type alarm.
Background technology
The alarm industrially used at present is directly mounted at the equipment such as lathe, waterproof not by special protection Design
Dust-proof effect is poor, is unfavorable for long-time service in harsh environment, and major part buzzer power designs are limited at present, in noisy environment
Middle alarm sound discrimination is low, it is difficult to arouse attention.
Utility model content
The purpose of this utility model is to provide a kind of super loud type alarm, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides following technical solution：
A kind of super loud type alarm, including housing, circuit part and loud speaker, the housing side is provided with resonator
Body, organ for resonance are internally provided with to fix the fixed seat of loud speaker, and loud speaker is connected to the output terminal of the circuit part, and
It is fixed in the housing, housing upper end inner wall is provided with buckle and card slot, and the circuit part includes power circuit, square wave
Generation circuit, current amplification circuit and booster circuit, power circuit connection reduction voltage circuit, reduction voltage circuit are also respectively connected with square wave hair
Raw circuit and current amplification circuit, square wave generation circuit are also connected with current amplification circuit, and current amplification circuit is also connected with boosting electricity
Road, the booster circuit are also connected with loud speaker.
Preferred embodiment as the utility model：The circuit part is integrated on one piece of pcb board, and passes through fixing threaded hole
Installation is inside housings.
Preferred embodiment as the utility model：Side's wave generation circuit is formed using 6 phase inverters.Export square wave
Frequency cycle variation, control the tone of buzzer.
Preferred embodiment as the utility model：The current amplification circuit uses large power triode.
Preferred embodiment as the utility model：The booster circuit is switch transformer.Amplified square-wave signal liter
It is exported after pressure, effectively increases the volume of super loud type alarm.
Preferred embodiment as the utility model：The side wall of the housing is equipped with loud speaker window, and loud speaker is mounted on
On loud speaker window.
Preferred embodiment as the utility model：The buckle is buckled for " 7 " type.
Preferred embodiment as the utility model：The card slot is " II " type card slot.
Preferred embodiment as the utility model：The pcb board is installed inside housings by fixing threaded hole.
Preferred embodiment as the utility model：The housing is cylindrical housings.
Compared with prior art, the beneficial effects of the utility model are：The utility model is had after being boosted using booster circuit
The power for improving loud speaker of effect, output buzzer decibel is big, and transmitting range is remote, and tone is clear, improves in noisy environment
In resolution.Meanwhile booster circuit also acts voltage buffer action, has isolated signal circuit section and power output portion
Point, improve circuit anti-interference ability.
Description of the drawings
Fig. 1 is the super loud type alarm arrangement explosive view that the utility model embodiment provides
Fig. 2 is the super loud type alarm front view that the utility model embodiment provides.
Fig. 3 is the super loud type alarm side view that the utility model embodiment provides.
Fig. 4 is circuit part module map.
In figure：1- loud speakers, 2- loud speakers window, 3- organ for resonance, 4- buckles, 5- fixed seats, 6- card slots, 7-PCB plates,
8- housings.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the utility model embodiment, a kind of super loud type alarm, including housing 8, circuit part and
Loud speaker 1, the housing 8 are cylindrical housings, 8 side of housing are provided with organ for resonance 3, organ for resonance 3 is internally provided with use
In the fixed seat 5 of fixed loud speaker, loud speaker 1 is connected to the output terminal of the circuit part, and is fixed in the housing 8,
8 upper end inner wall of housing is provided with " 7 " type buckle 4 and " II " type card slot 6, and the circuit part includes power circuit, square wave hair
Raw circuit, current amplification circuit and booster circuit, power circuit connection reduction voltage circuit, reduction voltage circuit are also respectively connected with square wave
Circuit and current amplification circuit, square wave generation circuit are also connected with current amplification circuit, and current amplification circuit is also connected with booster circuit,
The booster circuit is also connected with loud speaker.
Circuit part is integrated on one piece of pcb board 7, and passes through fixing threaded hole inside housing 8.Square wave generation circuit
It is to be formed using 6 phase inverters, exports the frequency cycle variation of square wave, controls the tone of buzzer.Current amplification circuit is adopted
Use large power triode.Booster circuit position booster circuit.It is exported after amplified square-wave signal boosting, effectively increases super loud type
The volume of alarm, the booster circuit are switch transformer.
The side wall of housing 8 is equipped with loud speaker window 2, and loud speaker 1 is mounted on loud speaker window 2.Outside shell upper end
Circle is designed with fixed point, and there is nicking in shell lower end outer ring and the nicking is shortened from centre to both sides.
The alarm of the utility model passes through the common volume for acting on this product of booster circuit and organ for resonance
Can reach 120dB and more than.
The operation principle of the utility model is：The middle part that loud speaker 1 described in the utility model is mounted on the housing 8 is convex
Go out window interior, the loud speaker 1 just faces outwardly (towards at window) when installing.The protrusion window appearance sets for horn-type
Meter, internal structure design are organ for resonance 3, and interior surface is smooth plane, the sound that the purpose is to send loud speaker 1
Sound is empathized by smooth inner wall reflection, i.e., the sound at 1 back side of loud speaker is finally anti-from window by the effect of resonator
It is shot out, the sound sent with 1 front of loud speaker is superimposed, and improves the volume of buzzer, and the utilization rate of output power is made to reach most
Bigization.
Circuit part described in the utility model is integrated on one piece of pcb board 7, and pcb board 7 is designed as circle, and diameter is smaller
In housing inner diameter, while the PCB surroundings are provided with fixing threaded hole and the fixing threaded hole of housing upper end is fixed by nut.It is described
Circuit part includes power circuit, square wave generation circuit, current amplification circuit and booster circuit.The circuit is arranged at
On one piece of pcb board, and pass through signal wire and be connected with loud speaker.The power circuit supports two kinds of control source patterns：Alternating current
Pressure input (220V/110V AC) and DC voltage input (10-36V DC).Side's wave generation circuit is using 6 reverse phases
Device is formed, and is exported the frequency cycle variation of square wave, is achieved the effect that the tone for controlling buzzer.The current amplification circuit is adopted
With large power triode, transistor base is connected as input terminal with the output terminal of square-wave generator, transistor collector series connection
One power resistor is followed by power supply.Amplified square-wave signal is drawn from the collector of triode, is connected to the liter
The input terminal of volt circuit, the booster circuit are formed based on booster circuit, square-wave signal input switch primary, letter
It is exported after number voltage amplification from transformer secondary output, loud speaker is delivered to by signal wire.
Claims (10)
1. a kind of super loud type alarm, including housing, circuit part and loud speaker, the housing side is provided with resonator
Body, organ for resonance are internally provided with to fix the fixed seat of loud speaker, and loud speaker is connected to the output terminal of the circuit part, and
It is fixed in the housing, housing upper end inner wall is provided with buckle and card slot, which is characterized in that the circuit part includes electricity
Source circuit, square wave generation circuit, current amplification circuit and booster circuit, power circuit connection reduction voltage circuit, reduction voltage circuit also divide
Other connection side's wave generation circuit and current amplification circuit, square wave generation circuit are also connected with current amplification circuit, current amplification circuit
Booster circuit is also connected with, the booster circuit is also connected with loud speaker.
2. super loud type alarm according to claim 1, which is characterized in that the circuit part is integrated in one piece of pcb board
On.
3. super loud type alarm according to claim 1, which is characterized in that side's wave generation circuit is anti-using 6
Phase device is formed.
4. super loud type alarm according to claim 1, which is characterized in that the current amplification circuit uses high-power three
Pole pipe.
5. super loud type alarm according to claim 1, which is characterized in that the booster circuit is switch transformer.
6. super loud type alarm according to claim 1, which is characterized in that the buckle is buckled for " 7 " type.
7. super loud type alarm according to claim 1, which is characterized in that the card slot is " II " type card slot.
8. super loud type alarm according to claim 2, which is characterized in that the pcb board is mounted on by fixing threaded hole
Enclosure interior.
9. super loud type alarm according to claim 1, which is characterized in that the housing is cylindrical housings.
10. super loud type alarm according to claim 1, which is characterized in that the side wall of the housing is equipped with loud speaker
Window, loud speaker are mounted on loud speaker window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721556812.XU CN207440939U (en) | 2017-11-20 | 2017-11-20 | A kind of super loud type alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721556812.XU CN207440939U (en) | 2017-11-20 | 2017-11-20 | A kind of super loud type alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207440939U true CN207440939U (en) | 2018-06-01 |
Family
ID=62286479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721556812.XU Active CN207440939U (en) | 2017-11-20 | 2017-11-20 | A kind of super loud type alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207440939U (en) |
-
2017
- 2017-11-20 CN CN201721556812.XU patent/CN207440939U/en active Active
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