CN2145410Y - Double-voice electric loudspeaker for automobile - Google Patents
Double-voice electric loudspeaker for automobile Download PDFInfo
- Publication number
- CN2145410Y CN2145410Y CN 92233616 CN92233616U CN2145410Y CN 2145410 Y CN2145410 Y CN 2145410Y CN 92233616 CN92233616 CN 92233616 CN 92233616 U CN92233616 U CN 92233616U CN 2145410 Y CN2145410 Y CN 2145410Y
- Authority
- CN
- China
- Prior art keywords
- utility
- model
- automobile
- double
- base circuit
- 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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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a double-voice electric loudspeaker for automobile, which is characterized in that two astable circuits are formed by a time-base circuit 556 and R1, R2, C1 and also R3, R4, C2, wherein, the feet 5, 9 of the time-base circuit 556, which deliver square wave signals are respectively connected with the bases of triodes BG1, BG2 through R5, R6; castanets Y1, Y2 are respectively connected to the emitters of triodes BG1, BG2. Compared with mechanical contact point type loudspeaker of the existing techniques, the utility model has the advantages of low energy consumption, long service life and convenient installation, and has no needs of exchanging electric apparatus lines and other auxiliary devices of the motor car.
Description
The utility model relates to signaling device, more particularly, is a kind of automobile double-tone electric horn.
Automobile double-tone electric horn of the prior art is to be made of coil, relay, loudspeaker contact and castanets etc.Owing to adopt the big current work of mechanical contact,, very easily cause and draw fire when frequent break-make and long-time adhesive in the contact, burn out contact and relay tip, therefore, exist the defective that power consumption is big, the life-span is short.
The purpose of this utility model is to avoid the deficiencies in the prior art part, and a kind of automobile double-tone electric horn is provided, and substitutes loudspeaker contact and relay by electronic devices and components, thereby prolongs loudspeaker serviceable life, cut down the consumption of energy.
The purpose of this utility model is realized by following technical scheme.
Feature of the present utility model is by time base circuit 556 and R
1, R
2, C
1And R
3, R
4, C
2Constitute two groups of astable circuits, the 5th pin of output square-wave signal, the 9th pin are respectively by resistive element R in the time base circuit 556
5, R
6With triode BG
1, BG
2Base stage connects, castanets Y
1, Y
2Be connected to triode BG
1, BG
2Emitter.
The utility model is compared prior art and is had following advantage.
1, energy consumption is low.The power consumption of mechanical contact-type electric horn breaker point unit is generally 0.4A, and the power consumption of the utility model entire circuit does not contain the coil power consumption less than 100mA().
2, the life-span is long.Mechanical contact-type loudspeaker work number of times is about 1.5～30,000 times, and the utility model work number of times can reach more than 250,000 times.
3, the utility model is easy for installation, need not to change car electrics circuit and other auxiliary device.
4, the utility model is simple in structure, with low cost.
Accompanying drawing is the utility model circuit theory diagrams.
By the following examples, in conjunction with the accompanying drawings the utility model is done a non-limiting explanation.
Embodiment:
Referring to accompanying drawing, integrated package 7810 and capacitor C
3, C
4Constitute mu balanced circuit.Time base circuit 556 and its peripheral cell R
1, R
2, C
1And R
3, R
4, C
2Constitute two astable circuits.The 5th pin, the 9th pin of time base circuit 556 are respectively exported square-wave signal, and this square-wave signal passes through resistance R respectively
5, R
6Directly promote triode BG
1, BG
2, make BG
1And BG
2Be operated on off state, by castanets Y
1, Y
2Sounding.
Adjust R
2, C
1Can change Y
2Frequency is adjusted R
4, C
2Can change Y
1Frequency is adjusted R
5, R
6Can change by castanets Y
1, Y
2Electric current.
Claims (1)
1, automobile double-tone electric horn is characterized in that, by time base circuit 556 and R
1, R
2, C
1And R
3, R
4, C
2Constitute two groups of astable circuits, the 5th pin of output square-wave signal, the 9th pin are respectively by resistive element R in the time base circuit 556
5, R
6With triode BG
1, BG
2Base stage connects, castanets Y
1, Y
2Be connected to triode BG
1, BG
2Emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233616 CN2145410Y (en) | 1992-09-19 | 1992-09-19 | Double-voice electric loudspeaker for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233616 CN2145410Y (en) | 1992-09-19 | 1992-09-19 | Double-voice electric loudspeaker for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2145410Y true CN2145410Y (en) | 1993-11-03 |
Family
ID=33775890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233616 Expired - Fee Related CN2145410Y (en) | 1992-09-19 | 1992-09-19 | Double-voice electric loudspeaker for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2145410Y (en) |
-
1992
- 1992-09-19 CN CN 92233616 patent/CN2145410Y/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 |