CN202120378U - Alarm driving device for LED instruments - Google Patents
Alarm driving device for LED instruments Download PDFInfo
- Publication number
- CN202120378U CN202120378U CN2011201676831U CN201120167683U CN202120378U CN 202120378 U CN202120378 U CN 202120378U CN 2011201676831 U CN2011201676831 U CN 2011201676831U CN 201120167683 U CN201120167683 U CN 201120167683U CN 202120378 U CN202120378 U CN 202120378U
- Authority
- CN
- China
- Prior art keywords
- alarm
- triode
- driving circuit
- warning
- hummer
- 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
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses an alarm driving device for LED instruments, which belongs to the field of LED instruments of loaders and comprises a buzzer H, an alarm indication lamp L, a fuse F and an alarm driving circuit A. The buzzer H and one end of the alarm indication lamp L are connected with a power supply through the fuse F, one end of the alarm driving circuit A is connected with an instrument alarm end B, and the other end of the alarm driving circuit A is connected with the buzzer H and the alarm indication lamp L. The alarm driving device for the LED instruments has the advantages that 1, the defect that conventional instruments of the loaders only can display but alarm is overcome; 2, alarming and indicating can be carried out synchronously, and intelligentization level is high; and 3, the alarm driving device is fine in compatibility, and different buzzers and alarm indication lamps can be optionally combined for use.
Description
Technical field
The utility model relates to a kind of shovel loader LED instrument, specifically is that a kind of LED instrument is used the warning drive unit, belongs to shovel loader LED instrument field.
Background technology
The LED instrument that present domestic shovel loader industry generally adopts is reported to the police and is held output current little (milliampere level); A little less than the driving force; Can not directly drive vehicle carried pilot lamp and hummer (ampere level), can only carry out simple deixis, when the indicating area surpasses setting value, can not carry out sound and light alarm synchronously; Cause the driver to continue allowing loader operation in spite of illness, bring potential safety hazard to equipment.
Summary of the invention
Problem to above-mentioned prior art existence; The utility model provides a kind of LED instrument to use the warning drive unit, and instrument is reported to the police to hold and can directly be driven vehicle-mounted hummer and alarm lamp, carries out acousto-optic and reports to the police synchronously; The prompting driver makes the handled measure to the trouble spot that occurs; Preventing that the driver from leaking sees or forgets, and avoids shovel loader to continue operation in spite of illness, improves the operational security of shovel loader greatly.
To achieve these goals; The technical scheme that the utility model adopts is: a kind of LED instrument is used the warning drive unit; Comprise hummer H, alarm lamp L and insurance F, the end of hummer H and alarm lamp L is connected with power supply through insurance F, also comprises warning driving circuit A; Warning driving circuit A one end is reported to the police with instrument and is held B to be connected, and the other end is connected with alarm lamp L with hummer H.
Wherein, Warning driving circuit A comprises resistance R, triode Q1, triode Q2 and diode Q3; Resistance R is connected with the base stage of triode Q1; The emitter of triode Q1 is connected with the base stage of triode Q2, and the emitter of triode Q2 is connected with the positive pole of diode Q3 and ground connection, and the collector of the collector of triode Q1, triode Q1 and the positive pole of diode Q3 are connected to hummer H and alarm lamp L; Power supply is the DC24V power supply.
Principle of work: when instrument detects the measuring point running parameter above normal range of operation through sensor D; From the 6th pin output milliampere faint alerting signal of level, the warning drive unit reaches the ampere level with this signal processing and amplifying to instrument through the internal control chip; Automatically drive sound and light alarm; Give a warning to the driver, require the driver in time to be handled it in the warning position, guarantee the safe and reliable all the time work of shovel loader.
The beneficial effect of the utility model is: 1, having changed the shovel loader conventional instrument can only show, the defective that can not report to the police.2, warning and indication can be carried out synchronously, and intelligent degree is high.3, compatible good, can carry out independent assortment according to different hummers, alarm lamp and use.
Description of drawings
Fig. 1 is the scheme of installation of the utility model
Fig. 2 is the electrical schematic of the utility model
Embodiment
To combine accompanying drawing that the utility model is described further below.
As shown in Figure 1; A kind of LED instrument is used the warning drive unit; Comprise hummer H, alarm lamp L and insurance F, the other end of hummer H and alarm lamp L is connected with DC 24V power supply through insurance F, also comprises warning driving circuit A; Warning driving circuit A one end is reported to the police with instrument and is held B to be connected, and the other end is connected with alarm lamp L with hummer H.
As shown in Figure 2; Warning driving circuit A comprises resistance R, triode Q1; Triode Q2 and diode Q3, resistance R is connected with the base stage of triode Q1, and the emitter of triode Q1 is connected with the base stage of triode Q2; The emitter of triode Q2 is connected with the positive pole of diode Q3 and ground connection, and the collector of the collector of triode Q1, triode Q1 and the positive pole of diode Q3 are connected to hummer H and alarm lamp L.
As depicted in figs. 1 and 2, when reporting to the police appears in instrument, import a signal to warning drive unit S end by instrument 6 pin; When this alerting signal converted noble potential to by zero potential, the preceding terminal voltage of resistance R (SINGAL place among Fig. 2) was+5V, through the hypotensive effect of current-limiting resistance R; On the base stage of Q1, produce 1.2V voltage, make Q1 emitter, collector conducting, owing to the Q1 conducting promotes Q2 emitter, collector conducting; Thereby reach the effect of current/voltage conversion; Hummer H begins to pipe, and alarm lamp L lights, and diode Q3 is the protection diode.
When alerting signal converted electronegative potential to by noble potential, SINGAL place voltage was zero, and Q1 and Q2 are in cut-off state, and no current passes through, and hummer H stops to pipe, and alarm lamp L extinguishes, thereby plays the effect of conversion and control automatically.
Claims (3)
1. a LED instrument is used the warning drive unit; Comprise hummer H, alarm lamp L and insurance F; The end of hummer H and alarm lamp L is connected with power supply through insurance F; It is characterized in that also comprising warning driving circuit A, warning driving circuit A one end is reported to the police with instrument and is held B to be connected, and the other end is connected with alarm lamp L with hummer H.
2. a kind of LED instrument according to claim 1 is used the warning drive unit; It is characterized in that described warning driving circuit A comprises resistance R, triode Q1; Triode Q2 and diode Q3, resistance R is connected with the base stage of triode Q1, and the emitter of triode Q1 is connected with the base stage of triode Q2; The emitter of triode Q2 is connected with the positive pole of diode Q3 and ground connection, and the collector of the collector of triode Q1, triode Q1 and the positive pole of diode Q3 are connected to hummer H and alarm lamp L.
3. a kind of LED instrument according to claim 1 is used the warning drive unit, it is characterized in that described power supply is the DC24V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201676831U CN202120378U (en) | 2011-05-23 | 2011-05-23 | Alarm driving device for LED instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201676831U CN202120378U (en) | 2011-05-23 | 2011-05-23 | Alarm driving device for LED instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202120378U true CN202120378U (en) | 2012-01-18 |
Family
ID=45461426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201676831U Expired - Fee Related CN202120378U (en) | 2011-05-23 | 2011-05-23 | Alarm driving device for LED instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202120378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782867A (en) * | 2019-10-10 | 2020-02-11 | 华东光电集成器件研究所 | Buzzer driving circuit of I/O port of controller |
-
2011
- 2011-05-23 CN CN2011201676831U patent/CN202120378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110782867A (en) * | 2019-10-10 | 2020-02-11 | 华东光电集成器件研究所 | Buzzer driving circuit of I/O port of controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202758176U (en) | Light source life timing device | |
| CN201863768U (en) | Locomotive car light fault monitoring and warning system | |
| CN201133923Y (en) | Kinetic cell short circuit checking machine | |
| CN202120378U (en) | Alarm driving device for LED instruments | |
| CN201859190U (en) | Sensor fault self-diagnosis circuit of intelligent pressure transmitter in industry | |
| CN203982550U (en) | Multi-functional carbon monoxide detecting alarm | |
| CN209930557U (en) | Driver circuit of LED lamp | |
| CN201178514Y (en) | Alarm lamp abnormity monitoring device | |
| CN106535422B (en) | A kind of light source abnormity alarm circuit of LED lamp | |
| CN109587890B (en) | Driver circuit of LED lamp | |
| CN102213738A (en) | Short-circuit test device of electric equipment | |
| CN104427729A (en) | Automobile instrument alarm lamp fault processing method and system | |
| CN203465345U (en) | External voltage automatic detection and alarm circuit | |
| CN202522366U (en) | Automatic audible and visual alarm type pressure gauge | |
| CN202495407U (en) | Fuse monitor with sound-light prompt function | |
| CN203965840U (en) | Measurement of multipoint signals control circuit | |
| CN201600169U (en) | Water tank level alarm | |
| CN201951385U (en) | Safety airbag indicator light circuit with diagnosis function | |
| CN207328271U (en) | Vehicular meter alarm lamp control system, meter panel of motor vehicle and vehicle | |
| CN202884613U (en) | Mechanical equipment fault alarm light of adjustable volume | |
| CN201112285Y (en) | Novel motor vehicle relay with display lamp | |
| CN204143588U (en) | A kind of SCM Based pyrotechnics automatic alarm system | |
| CN2742277Y (en) | Motor vehicle signal indication lamp | |
| CN204719123U (en) | A kind of overvoltage undervoltage detection circuit | |
| CN201408975Y (en) | Fuse burnout warning circuit and television with fuse burnout warning function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20160523 |