CN2590121Y - Automobile electronic horn - Google Patents
Automobile electronic horn Download PDFInfo
- Publication number
- CN2590121Y CN2590121Y CN 02279486 CN02279486U CN2590121Y CN 2590121 Y CN2590121 Y CN 2590121Y CN 02279486 CN02279486 CN 02279486 CN 02279486 U CN02279486 U CN 02279486U CN 2590121 Y CN2590121 Y CN 2590121Y
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- circuit
- horn
- utility
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Abstract
The utility model provides an automobile electronic horn, which is composed of a horn, an audio output module, and a casing body, wherein, the audio output module comprises a feedback circuit < 1 >, an oscillating circuit < 2 >, a power output circuit < 3 >, a protective circuit < 4 >, and a voltage regulating circuit < 5 >. The utility model has the advantages of low cost, simple structure, low accuracy requirement of electronic components, wide voltage accommodation range, accurate frequency, less temperature drift, less influence of a source voltage valve on the output current, no adjustment of a horn air gap, and convenient assembly.
Description
The utility model relates to automobile electronic loudspeaker.
Traditional electric automobile horn adopts relay, hard contact structure, and physical life is short, and adjusting is difficult, tonequality is ear-piercing.Existing automobile electronic loudspeaker generally all adopts various oscillatory circuits, power output circuit to form, and output power is big with the scope of mains voltage variations, causes debug difficulties, and poor reliability is difficult to suitability for industrialized production.
The purpose of this utility model is to provide that a kind of cost is low, frequency accurately, the output power variation range is little, need not to debug, be convenient to the automobile electronic loudspeaker of suitability for industrialized production.
The utility model is realized in the following ways.
The utility model is made up of loudspeaker, audiofrequency output membrane block and housing.Audiofrequency output membrane block includes feedback circuit [1], oscillatory circuit [2], power output circuit [3], holding circuit [4] and mu balanced circuit [5].Holding circuit [4] links to each other with feedback circuit [1], mu balanced circuit [5] and power output circuit [3] respectively.One end of power output circuit [3] links to each other with loudspeaker, and the other end links to each other with oscillatory circuit [2], and the other end of oscillatory circuit [2] then links to each other with mu balanced circuit [5] with feedback circuit [1] respectively.
The automobile electronic loudspeaker cost that the utility model produces is low, simple in structure, and is low to the electronic component accuracy requirement, the voltage adaptation wide ranges, temperature drift is little, and supply voltage value is little to the influence of output current, the loudspeaker air gap exempts to transfer, and is convenient to assembling, is suitable for producing in batches.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1, the utility model schematic block circuit diagram.
Accompanying drawing 2, the utility model circuit theory diagrams.
Referring to accompanying drawing, oscillatory circuit [2] is by integrated package NE555 and peripheral cell thereof: resistance, electric capacity are formed, and its output waveform is a square wave, " 2 " of NE555; " 6 " pin and the indirect oscillating capacitance of " 5 " pin, what can make its energising back " 3 " pin is output as low level first.Feedback circuit [1] is that supply voltage value is acted on oscillatory circuit [2] by resistance, electric capacity and voltage stabilizing diode, make oscillatory circuit [2] when supply voltage value changes, its output frequency can accurately satisfy the horn frequency characteristic, and the output waveform duty factor can correspondingly change, when supply voltage value is in duty factor minimum in limited time, on the contrary maximum.The output current variation range of power output circuit [3] is just little like this.Power output circuit [3] has adopted N raceway groove VMON pipe, and its output internal resistance is little, and the most of the time be operated in saturation conduction and cut-off state, so heating is few.Holding circuit [4] is to reduce the induced voltage of horn coil by electric capacity, and diode is used to prevent current reversal.Mu balanced circuit [5] then is to be used for providing stabilized voltage supply to oscillatory circuit [2].
Claims (2)
1. automobile electronic loudspeaker; comprise loudspeaker, audiofrequency output membrane block and housing; it is characterized in that audiofrequency output membrane block; it includes feedback circuit [1], oscillatory circuit [2], power output circuit [3], holding circuit [4] and mu balanced circuit [5]; holding circuit [4] links to each other with feedback circuit [1], mu balanced circuit [5] and power output circuit [3] respectively; one end of power output circuit [3] links to each other with loudspeaker; the other end links to each other with oscillatory circuit [2], and the other end of oscillatory circuit [2] then links to each other with mu balanced circuit [5] with feedback circuit [1] respectively.
2. electronic horn as claimed in claim 1 is characterized in that oscillatory circuit has adopted Voltage Feedback, adjusts the output duty factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279486 CN2590121Y (en) | 2002-10-09 | 2002-10-09 | Automobile electronic horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02279486 CN2590121Y (en) | 2002-10-09 | 2002-10-09 | Automobile electronic horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2590121Y true CN2590121Y (en) | 2003-12-03 |
Family
ID=33742550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02279486 Expired - Fee Related CN2590121Y (en) | 2002-10-09 | 2002-10-09 | Automobile electronic horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2590121Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413404A (en) * | 2011-12-05 | 2012-04-11 | 哈尔滨固泰电子有限责任公司 | Contactless power-isolated supply circuit of electronic horn and isolation power supply method thereof |
| CN103390401A (en) * | 2013-08-09 | 2013-11-13 | 何林 | High-loudness buzzer |
-
2002
- 2002-10-09 CN CN 02279486 patent/CN2590121Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413404A (en) * | 2011-12-05 | 2012-04-11 | 哈尔滨固泰电子有限责任公司 | Contactless power-isolated supply circuit of electronic horn and isolation power supply method thereof |
| CN103390401A (en) * | 2013-08-09 | 2013-11-13 | 何林 | High-loudness buzzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Qiao Fajin Document name: Notification of Termination of Patent Right |
|
| 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 |