CN205080901U - Two on -vehicle loudspeaker of backing a car of warning of reputation - Google Patents
Two on -vehicle loudspeaker of backing a car of warning of reputation Download PDFInfo
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- CN205080901U CN205080901U CN201520746584.7U CN201520746584U CN205080901U CN 205080901 U CN205080901 U CN 205080901U CN 201520746584 U CN201520746584 U CN 201520746584U CN 205080901 U CN205080901 U CN 205080901U
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- loudspeaker
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- circuit board
- voltage stabilizing
- backing
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Abstract
The utility model relates to a two on -vehicle loudspeaker of backing a car of warning of reputation. It lacks vision warning effect, the relatively poor problem of loudspeaker warning effect mainly to have solved the current on -vehicle loudspeaker of backing a car. Two on -vehicle loudspeaker of backing a car of warning of reputation, its band have casing, flash light, speaker and a circuit board of support frame, the casing that has the support frame openly is equipped with radial sand grip for basin shape in the center outside it, radial sand grip transmitting center is for circular recess and lie in casing outward appearance center, the flash light is installed in circular groove, inside the speaker is located the casing that has the support frame the circuit board is located inside the casing that has the support frame, the circuit board is connected the both ends of positive and negative polarities and is stretched out the casing outside. This two on -vehicle loudspeaker of backing a car of warning of reputation compares the on -vehicle loudspeaker of backing a car in originally, and these loudspeaker not only have the flash light, and the flash light position is striking, and circuit structure is simple, and the working property is stable, and warning effect is strong.
Description
Technical field
The utility model relates to horn art, is specifically related to a kind of sound-light alarming and moves backward vehicle-mounted loudspeaker.
Background technology
People's living standard improves thereupon, vehicle is to go deep into the life of people, quantity also gets more and more, but in the use procedure of vehicle, have many safety problems to occur, such as reversing is exactly a major safety problems, loudspeaker prompting is had during reversing, but due in a noisy environment, sometimes pedestrian or driver are difficult to be reacted in time by loudspeaker, and the alarming effect of loudspeaker is poor.
Utility model content
In order to overcome the deficiency of background technology, the utility model provides a kind of sound-light alarming to move backward vehicle-mounted loudspeaker, mainly solve the vehicle-mounted loudspeaker of existing reversing and lack visual alarm effect, the problem that loudspeaker alarming effect is poor, this sound-light alarming this sound-light alarming of vehicle-mounted loudspeaker of moveing backward moves backward vehicle-mounted loudspeaker compared to the vehicle-mounted loudspeaker of original reversing, these loudspeaker are not only with flashlamp, and flashlamp position is eye-catching, strengthen suggesting effect, improve safe effect, circuit structure is simple, and stable work in work, alarming effect is strong.
The technical scheme that the utility model adopts is: a kind of sound-light alarming is moveed backward vehicle-mounted loudspeaker, it comprises the casing with bracing frame, flashlamp, loudspeaker and circuit board, the described casing front center with bracing frame is basin shape, radial raised line is provided with outside it, described radial raised line launching centre is circular groove and is positioned at casing appearance center, described flashlamp is installed on circular groove place, described loudspeaker is positioned at the casing internal with bracing frame, described circuit board is positioned at the casing internal with bracing frame, the two ends that described circuit board connects power supply positive and negative polarities are stretched out outside casing, described flashlamp is LED, described circuit board comprises power supply unit, speech chip, Audio power amplifier unit and LED driver element, described power supply unit exports a voltage stabilizing value to speech chip, and speech chip exports a pulse signal and comes control loudspeaker and LED driver element through the amplification of Audio power amplifier unit,
Described power supply unit is adjustable mu balanced circuit, comprise rectifier cell diode, Voltage stabilizing module, filtering circuit, current-limiting resistance, voltage stabilizing diode, that described Voltage stabilizing module adopts is LM317, and described filtering circuit comprises electrodeless electric capacity and has electrode capacitance, and described current-limiting resistance quantity is 2; Described power input voltage scope is at 10V ~ 30V, and the pressure regulation value of described Voltage stabilizing module is 12V, and described voltage stabilizing diode output voltage is 4.3V;
What described speech chip adopted is 8 pin OTP speech chips, and what described Audio power amplifier unit adopted is TDA2882 operational amplifier, and described LED driver element have employed NPN type triode driving circuit;
Described flashlamp is white led lamps.
The beneficial effects of the utility model are: owing to taking technique scheme, this sound-light alarming this sound-light alarming of vehicle-mounted loudspeaker of moveing backward moves backward vehicle-mounted loudspeaker compared to the vehicle-mounted loudspeaker of original reversing, these loudspeaker are not only with flashlamp, and flashlamp position is eye-catching, strengthen suggesting effect, improve safe effect, circuit structure is simple, and stable work in work, alarming effect is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is electrical block diagram of the present utility model.
Casing in figure 100, with bracing frame; 200, flashlamp; 300, loudspeaker; 400, circuit board.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As Fig. 1, shown in Fig. 2, a kind of sound-light alarming is moveed backward vehicle-mounted loudspeaker, it comprises the casing 100 with bracing frame, flashlamp 200, loudspeaker 300 and circuit board 400, described casing 100 front center with bracing frame is basin shape, which is provided with radial raised line, described radial raised line launching centre is circular groove and is positioned at casing appearance center, described flashlamp 200 is installed on circular groove place, the casing 100 that described loudspeaker 300 is positioned at bracing frame is inner, the casing 100 that described circuit board 400 is positioned at bracing frame is inner, the two ends that described circuit board 400 connects power supply positive and negative polarities are stretched out outside casing, described flashlamp 200 is white led lamps, described circuit board 400 comprises power supply unit, speech chip, Audio power amplifier unit and LED driver element, described power supply unit exports a voltage stabilizing value to speech chip, and speech chip exports a pulse signal and comes control loudspeaker and LED driver element through the amplification of Audio power amplifier unit,
Described power supply unit is adjustable mu balanced circuit, comprise rectifier cell diode, Voltage stabilizing module, filtering circuit, current-limiting resistance, voltage stabilizing diode, that described Voltage stabilizing module adopts is LM317, and described filtering circuit comprises electrodeless electric capacity and has electrode capacitance, and described current-limiting resistance quantity is 2; Described power input voltage scope is at 10V ~ 30V, and the pressure regulation value of described Voltage stabilizing module is 12V, and described voltage stabilizing diode output voltage is 4.3V;
What described speech chip adopted is 8 pin OTP speech chips, and what described Audio power amplifier unit adopted is TDA2882 operational amplifier, and described LED driver element have employed NPN type triode driving circuit.
Its course of work is as described below: when locomotive is moveed backward at protrusive, and the pulse signal synchro control loudspeaker 300 that speech chip sends is sounded and flashlamp 200 glistens.
Every technician's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (4)
1. a sound-light alarming is moveed backward vehicle-mounted loudspeaker, comprise the casing with bracing frame, flashlamp, loudspeaker and circuit board, it is characterized in that: the described casing front center with bracing frame is basin shape, radial raised line is provided with outside it, described radial raised line launching centre is circular groove and is positioned at casing appearance center, described flashlamp is installed on circular groove place, described loudspeaker is positioned at the casing internal with bracing frame, described circuit board is positioned at the casing internal with bracing frame, the two ends that described circuit board connects power supply positive and negative polarities are stretched out outside casing, described flashlamp is LED, described circuit board comprises power supply unit, speech chip, Audio power amplifier unit and LED driver element, described power supply unit exports a voltage stabilizing value to speech chip, and speech chip exports a pulse signal and comes control loudspeaker and LED driver element through the amplification of Audio power amplifier unit.
2. sound-light alarming according to claim 1 is moveed backward vehicle-mounted loudspeaker, it is characterized in that: described power supply unit is adjustable mu balanced circuit, comprise rectifier cell diode, Voltage stabilizing module, filtering circuit, current-limiting resistance, voltage stabilizing diode, that described Voltage stabilizing module adopts is LM317, described filtering circuit comprises electrodeless electric capacity and has electrode capacitance, and described current-limiting resistance quantity is 2; Described power input voltage scope is at 10V ~ 30V, and the pressure regulation value of described Voltage stabilizing module is 12V, and described voltage stabilizing diode output voltage is 4.3V.
3. sound-light alarming according to claim 1 is moveed backward vehicle-mounted loudspeaker, it is characterized in that: what described speech chip adopted is 8 pin OTP speech chips, what described Audio power amplifier unit adopted is TDA2882 operational amplifier, and described LED driver element have employed NPN type triode driving circuit.
4. sound-light alarming according to claim 1 is moveed backward vehicle-mounted loudspeaker, it is characterized in that: described flashlamp is white led lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746584.7U CN205080901U (en) | 2015-09-24 | 2015-09-24 | Two on -vehicle loudspeaker of backing a car of warning of reputation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520746584.7U CN205080901U (en) | 2015-09-24 | 2015-09-24 | Two on -vehicle loudspeaker of backing a car of warning of reputation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205080901U true CN205080901U (en) | 2016-03-09 |
Family
ID=55433292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520746584.7U Active CN205080901U (en) | 2015-09-24 | 2015-09-24 | Two on -vehicle loudspeaker of backing a car of warning of reputation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205080901U (en) |
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2015
- 2015-09-24 CN CN201520746584.7U patent/CN205080901U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |