CN2332032Y - Buzzer - Google Patents
Buzzer Download PDFInfo
- Publication number
- CN2332032Y CN2332032Y CN 98238612 CN98238612U CN2332032Y CN 2332032 Y CN2332032 Y CN 2332032Y CN 98238612 CN98238612 CN 98238612 CN 98238612 U CN98238612 U CN 98238612U CN 2332032 Y CN2332032 Y CN 2332032Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- utility
- model
- resonator
- sound hole
- 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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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model relates to a buzzer. A resonance chamber is the shape of a circular arc; the bottom of the resonance chamber is a single macroporous sound discharging hole; a circuit is a non-rectification and non-voltage drop circuit. A circuit using a 220V AC power supply is formed by the connection of resistors R1, R2, a triode BG and an oscillation piece via conducting wires. The utility model has the advantages of reasonable structure, concentrated acoustic wave, intense resonance, sonorous, silvery and dulcet pronunciation, and simple circuits.
Description
The utility model belongs to hummer design and manufacturing technology field.
At present, the hummer shell that generally uses is deltiod, and resonator is a right-angle structure, lets out sound hole and is made up of many apertures, and circuit wherein is the rectification reduction voltage circuit.Its shortcoming is that many apertures are let out sound and are unfavorable for that sound wave releases; The right angle resonator makes sound scattering, resonance effect not good, and pronunciation is dull; The circuit structure complexity, easy break-down; The cost height.
The purpose of this utility model is,, provides a kind of and has the semisphere resonator, singlely lets out the hummer that sound hole, no rectification do not have reduction voltage circuit greatly in the shortcoming that configuration aspects exists at existing hummer.
The technical solution of the utility model is:
On the basis of existing hummer, do following improvement:
1. changing the square resonator is the semisphere resonator; 2. changing many apertures, to let out sound hole be that single macropore is let out sound hole, and last cover to add let out sound hole; 3. change the rectification reduction voltage circuit and do not have reduction voltage circuit for no rectification.So that the buzzer sound wave reflection is concentrated, sympathetic response is strong, and the DB value increases, and sound equipment is loud and clear, and clear and melodious melodious, circuit is simple, and is safe and reliable, economical and practical purpose.
Below in conjunction with accompanying drawing planform of the present utility model is done and to be specified
Fig. 1 is a structural representation of the present utility model
Fig. 2 is an electrical block diagram in the utility model
1-loam cake 2-housing 3-movement 4-oscillator plate 5-resonator 6-lets out sound hole
This hummer is formed shell by loam cake 1, housing 2.Movement 3 and oscillator plate 4 are installed in the housing from top to bottom successively.Below the oscillator plate 4 is semisphere resonator 5, and the resonator bottom has single macropore and lets out sound hole 6.Sound hole 6 is let out at loam cake 1 center.
The power supply of this hummer is the 220V alternating current, and circuit is by resistance R
1, R
2, triode BG and oscillator plate form through the lead connection.
Principle of work of the present utility model is:
When 220V voltage input movement, a-c cycle is through amplifying, and oscillator plate generation slight vibration is sent melodious sound equipment by resonator again.
Its usable range is wider.Be mainly used in the prompting and the warning of machinery, a certain programmed halt of household appliances front and back.For a long time, the short time uses and all can.
Its technical indicator:
Voltage: 220V frequency: 50HZ decibel: 75DB life-span: more than 10000 times (each 10 seconds)
The utility model has the advantages that rational in infrastructure, sound wave is concentrated, sympathetic response is strong, and it is loud and clear to pronounce, clear and melodious melodious, circuit Simply.
Claims (2)
1. hummer, by shell, movement, oscillator plate, resonator with let out sound hole and form, it is characterized in that resonator (5) is semisphere, sound hole (6) is let out for single macropore in the resonator bottom, sound hole (6) is let out at loam cake (1) center, and circuit does not have reduction voltage circuit for no rectification.
2. hummer according to claim 1 is characterized in that using the circuit of 220V AC power by resistance R
1, R
2, triode BG and oscillator plate (4) form through the lead connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238612 CN2332032Y (en) | 1998-08-18 | 1998-08-18 | Buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238612 CN2332032Y (en) | 1998-08-18 | 1998-08-18 | Buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2332032Y true CN2332032Y (en) | 1999-08-04 |
Family
ID=33986148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238612 Expired - Fee Related CN2332032Y (en) | 1998-08-18 | 1998-08-18 | Buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2332032Y (en) |
-
1998
- 1998-08-18 CN CN 98238612 patent/CN2332032Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |