CN2281290Y - Speech alarm for automotive hydraulic pressure - Google Patents
Speech alarm for automotive hydraulic pressure Download PDFInfo
- Publication number
- CN2281290Y CN2281290Y CN 96249344 CN96249344U CN2281290Y CN 2281290 Y CN2281290 Y CN 2281290Y CN 96249344 CN96249344 CN 96249344 CN 96249344 U CN96249344 U CN 96249344U CN 2281290 Y CN2281290 Y CN 2281290Y
- Authority
- CN
- China
- Prior art keywords
- oil pressure
- language
- input
- input end
- alarm
- 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
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 230000005236 sound signal Effects 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 230000009993 protective function Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a speech alarm device which is used when automotive lub-oil pressure is over low and is connected in parallel with the oil pressure indicator light of an automobile. When oil pressure is lower than a definite value, an oil pressure switch K is closed and power supply current is separately input to a generator Ic< 2 > and a power amplifier Ic< 3 > through a protective circuit and a voltage stabilizing circuit from the input end of the alarm to trigger the speech generator Ic< 2 > to generate an audio signal which is input by a potentiometer W and is amplified by the power amplifier to be supplied for a loudspeaker to emit speech alarm. The utility model has the protective functions of anti-interference, anti-overvoltage, anti-reverse connection, etc., and the utility model can be applied to automobiles with larger power supply fluctuation and has the advantages of simple structure and little possibility of damage and false alarm.
Description
Reminding alarm device when the utility model relates to a kind of automobile engine oil hypotony.
At present; the oil pressure alarm device that adopts on the automobile is an oil pressure indicator lamp; to cross when low indicator lamp bright when the vehicle oil pressure; the prompting driver is stopped and is handled; but since the driver under steam often ideological plane concentrate on the dead ahead; do not notice that the oil pressure indicator lamp on the instrument carrier panel is bright, therefore take place to cause the automotive engine Cylinder sticking to make engine breakdown because of oil pressure is low excessively through regular meeting.Chinese patent application CN2139536Y discloses a kind of " multifunction motor vehicle automatic language annunciator ", it is to be made of input circuit, automatic identification circuit, language output circuit three parts, input circuit carries out amplification ratio to nine sensor output signals such as the speed of a motor vehicle, oil pressure, door envelope, amount of gasoline, water temperature, machine oil, reversing, electric current, brakes, the signal that transfinites is sent into automatic identification circuit, the control sound circuit is reported to the police, and stores the language alarm signal of above-mentioned nine motor vehicle driving states in the language memory device of language output circuit respectively.This alarm equipment alarm way is more, complex structure, and it is big therefore to damage probability.Reckon without safety methods such as disturbance rejection, anti-overvoltage, reversal connection on its circuit structure simultaneously, difficult enforcement on automobile.
The purpose of this utility model is to obtain a kind of oil pressure language alarm, and it is simple in structure, has disturbance rejection, and anti-overvoltage protection and reverse connecting protection function are not fragile.
The purpose of this utility model is achieved in that
A kind of automobile oil pressure language alarm is by the input end difference input language producer Ic of supply current from annunciator
2With power amplifier Ic
3, language generator Ic
2The sound signal of output is through power amplifier Ic
3Amplify the back for loudspeaker BL sounding, wherein, the input of this annunciator, mouth are in parallel with oil pressure indicator lamp on the automobile, and input end is through protective circuit, mu balanced circuit and Ic
2, Ic
3Link to each other.
Protective circuit is: the input end of annunciator is in series with wire fuse RD and diode D and the pizo-resistance RU in parallel with input end.
Mu balanced circuit is by three terminal regulator Ic
1And go into end and/or go out to hold the bonded assembly capacitor C
1And/or C
2Form.
Language generator Ic
2Audio output 2 pin through potential device W and Ic
2Input end 2 pin link to each other.
Language generator Ic
24 pin be connected with 1 pin and in parallel with stabilivolt DW.
Below in conjunction with accompanying drawing in detail the utility model is described in detail.
Fig. 1 is the circuit diagram of the utility model automobile oil pressure language alarm.
Fig. 2 is the mounting means figure of this annunciator.
Referring to Fig. 1,2, annunciator HA is in parallel with oil pressure indicator lamp H, and K is the machine oil hydraulic beginning on the automobile, and power supply+end is through wire fuse RD, anti-reverse diode D and the surge voltage in pizo-resistance RU absorption power supply, C
1, C
2Be filter capacitor, the electric current of process voltage stabilizing is divided into two-way, one road horsepower input amplifier Ic
3(LM386), another road is through current-limiting resistance R
1, filtering anti-interference capacitor C
4Input language producer Ic
2(HFC5211), R
2, C
3Form the language tone circuit, Ic
24 pin and stabilivolt DW join, make Ic
2The energy normal operation, Ic
2Audio output 2 pin through audio frequency filter capacitor C
5, potential device W regulates volume, C
6Coupling is from 2 pin horsepower input amplifier Ic
3, via Ic
3, C
7, C
8The amplifier of forming amplifies the back for loudspeaker BL sounding.
In vehicle traveling process, when certain limit is arrived in low oil pressure, as Fig. 2, action of the spring among the oil pressure switch K on the automobile makes two closings of contact, electric current constitutes the loop from annunciator HA and indicator lamp H process to K and negative earth, and indicator lamp is shinny, annunciator sends similar prompt statements such as " please check up Engine oil ", makes driver's processing of in time stopping.
Compared with prior art, the utility model adopts the single channel oil pressure to report to the police, and can prevent false touch Send out and send wrong statement, simple in structure, not fragile; Have volume adjusting function, can In driver's cabin, regulate; Have anti-overvoltage, reverse connecting protection, anti-interference merit in the circuit Can, strengthened the power supply input protection, very big applicable to various class especially power-supply fluctuation Low-grade car on use.
Claims (5)
1. automobile oil pressure language alarm, supply current is from the input end of annunciator input language producer Ic respectively
2With power amplifier Ic
3, language generator Ic
2The sound signal of output is through power amplifier Ic
3Amplify the back for loudspeaker BL sounding, it is characterized in that: the input of this annunciator, mouth are in parallel with oil pressure indicator lamp on the automobile, and input end is through protective circuit, mu balanced circuit and Ic
2, Ic
3Link to each other.
2. oil pressure language alarm according to claim 1 is characterized in that: described protective circuit is that the input end of annunciator is in series with wire fuse RD and diode D and the pizo-resistance RU in parallel with input end.
3. oil pressure language alarm according to claim 1 is characterized in that: described mu balanced circuit is by three terminal regulator Ic
1And go into end and/or go out to hold the bonded assembly capacitor C
1And/or C
2Form.
4. oil pressure language alarm according to claim 1 is characterized in that: described language generator Ic
2Audio output 2 pin through potential device W and Ic
2Input end 2 pin link to each other.
5. oil pressure language alarm according to claim 1 is characterized in that: described language generator Ic
24 pin be connected with 1 pin and in parallel with stabilivolt DW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96249344 CN2281290Y (en) | 1996-12-20 | 1996-12-20 | Speech alarm for automotive hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96249344 CN2281290Y (en) | 1996-12-20 | 1996-12-20 | Speech alarm for automotive hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2281290Y true CN2281290Y (en) | 1998-05-13 |
Family
ID=33920959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96249344 Expired - Fee Related CN2281290Y (en) | 1996-12-20 | 1996-12-20 | Speech alarm for automotive hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2281290Y (en) |
-
1996
- 1996-12-20 CN CN 96249344 patent/CN2281290Y/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 |