CN203708490U - Electrombile simulated sound device - Google Patents
Electrombile simulated sound device Download PDFInfo
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- CN203708490U CN203708490U CN201420053043.1U CN201420053043U CN203708490U CN 203708490 U CN203708490 U CN 203708490U CN 201420053043 U CN201420053043 U CN 201420053043U CN 203708490 U CN203708490 U CN 203708490U
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model relates to a vehicle warning device, and concretely provides an electrombile simulated sound device. The device can make a certain sound when an electrombile is driving and has characteristics of simple structure and low cost. The electrombile simulated sound device comprises a power supply circuit and a loudspeaker Y1. The electrombile simulated sound device is characterized in that, the device also comprises a playing module (A), an audio frequency control module (B) and an audio frequency power amplification module (C) which are connected in order.
Description
Technical field
The utility model relates to a kind of vehicle warning device, specifically a kind of electric motor car simulated sound device.
Background technology
Electric motor car can not only reach travel speed faster, and has lower operating noise, is therefore difficult to be found to dodge in time ahead of time by pedestrian, and caused great security threat to pedestrian, some reports about electric motor car casualty accident are also of common occurrence.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of electric motor car simulated sound device is provided, and this device should be able to make electric motor car send in motion certain sound, and has simple in structure and lower-cost feature.
The technical solution of the utility model is: electric motor car simulated sound device, comprise power supply circuits and loud speaker Y1, and it is characterized in that: this device also comprises the playback module, audio frequency control module and the audio power amplification module that connect successively;
In described playback module: the VCC port of speech chip connects the RECLED port of speech chip by the first resistance R 1; The VCC port of speech chip connects the PLAYE port of speech chip by the first K switch 1; The RECLED port of speech chip connects the PLAYE port of speech chip by the 3rd K switch 3; The GND port ground connection of speech chip; The SP+ port of speech chip is connected described audio frequency control module;
In described audio frequency control module: voltage-controlled amplifier+VIN port by the first capacitor C 1 connect speech chip SP+ port and+VIN port is by the second resistance R 2 ground connection; The VG port of voltage-controlled amplifier connects the 3rd resistance R 3 that is then used in connection electric motor car speed control unit; The VG port of voltage-controlled amplifier connects the GND port of the voltage-controlled amplifier of ground connection by the 4th resistance R 4; The VOUT port of voltage-controlled amplifier is connected described audio power amplification module;
In described audio power amplification module: VOUT port and 1 port that 1 port of audio-frequency power amplifier connects voltage-controlled amplifier by the second capacitor C 2 pass through the 5th resistance R 5 ground connection; 2 ports of audio-frequency power amplifier are by the 6th resistance R 6 ground connection, and 2 ports are connected with 4 ports of the audio-frequency power amplifier that is connected described loud speaker Y1 by the 7th resistance R 7; 3 port ground connection of audio-frequency power amplifier;
Described power supply circuits connect respectively VCC port, the VCC port of voltage-controlled amplifier and 5 ports of audio-frequency power amplifier of speech chip.
In described power supply circuits, the first input end U3 of DC/DC converter is connected electric vehicle power sources E1 with the second input U4, the first output U1 connects respectively VCC port, the VCC port of voltage-controlled amplifier and 5 ports of audio-frequency power amplifier of speech chip, the second output U2 ground connection.
This device also comprises recording control circuit; In described recording control circuit, the VCC port of speech chip connects the REC port of speech chip by second switch K2, and the MIC port of speech chip connects microphone.
Between the VCC port of described speech chip and the first resistance R 1, be serially connected with LED 1.
The beneficial effects of the utility model are:
The utility model can store relevant sound clip (motor vehicle sound signal) in advance, and can in the time that electric motor car travels, this signal be played back, can also improve decibel according to the speed of a motor vehicle of electric motor car, thereby remind pedestrian around find in time and take care, to reduce the traffic accident of electric motor car; In addition, the utility model also has simple in structure and lower-cost feature.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of power supply circuits in the utility model.
Fig. 3 is fundamental diagram of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
Electric motor car simulated sound device, comprises power supply circuits, loud speaker Y1, playback module A, audio frequency control module B and audio power amplification module C; As shown in Figure 3, playback module, audio frequency control module, audio power amplification module and loud speaker Y1 are connected in series successively, and power supply circuits are respectively to playback module, audio frequency control module, audio power amplification module power supply.
1, as shown in Figure 1, in described playback module: the VCC port of speech chip connects the PLAYE port (coupling cock K1 can realize player function) of speech chip by the first K switch 1; The VCC port of speech chip connects the RECLED port of speech chip by the first resistance R 1; The RECLED port of speech chip connects the PLAYE port (coupling cock K3 can realize loop play function) of speech chip by the 3rd K switch 3; The GND port ground connection of speech chip; Can be connected in series LED 1(loop play between the VCC port of speech chip and the first resistance R 1 time, LED 1 can be lighted);
The preferred ISD1820P(buyable of model of described speech chip obtains); Described speech chip can store motor vehicle sound signal get off in advance, also can carry out later stage input by external microphone 21; Therefore, can be on digital playback module an additional recording control circuit D to realize sound-recording function; In described recording control circuit, the VCC port of speech chip connects the REC port of speech chip by second switch K2, and the MIC port of speech chip connects microphone 21;
Described playback module is connected audio frequency control module by the SP+ port of speech chip.
2, as shown in Figure 1, in described audio frequency control module: voltage-controlled amplifier+VIN port by the first capacitor C 1 connect speech chip SP+ port and+VIN port is by the second resistance R 2 ground connection; VG port (the signal amplification factor of the controlled voltage-controlled amplifier processed of this port of voltage-controlled amplifier, make sounding decibel of the present utility model to increase and improve with the speed of a motor vehicle) connect the 3rd resistance R 3, the three resistance R 3 and claiming again controller for electric vehicle for connecting electric motor car speed control unit 22(; External equipment, controls the control device that electric motor car moves); The VG port of voltage-controlled amplifier also connects the GND port of voltage-controlled amplifier by the 4th resistance R 4; The GND port ground connection of voltage-controlled amplifier;
The preferred VCA822(buyable of model of described voltage-controlled amplifier obtains);
Described audio frequency control module is connected audio power amplification module by the VOUT port of voltage-controlled amplifier, and described electric motor car speed control unit connects the VG port of voltage-controlled amplifier by the 3rd resistance R 3.
3, as shown in Figure 1, in described audio power amplification module: 1 port of audio-frequency power amplifier connects the VOUT port of voltage-controlled amplifier by the second capacitor C 2; 1 port of audio-frequency power amplifier is by the 5th resistance R 5 ground connection; 2 ports of audio-frequency power amplifier are by the 6th resistance R 6 ground connection, and 2 ports of audio-frequency power amplifier also connect 4 ports of audio-frequency power amplifier by the 7th resistance R 7; 3 port ground connection of audio-frequency power amplifier;
The preferred TDA2030(buyable of model of described audio-frequency power amplifier obtains);
Described audio power amplification module is connected loud speaker Y1 by 4 ports of audio-frequency power amplifier.
4, as shown in Figure 1, described loud speaker Y1 one end connects 4 ports and the other end ground connection of audio-frequency power amplifier.
5, as shown in Figure 2, in described power supply circuits, the first input end U3 of DC/DC converter 14 is connected electric vehicle power sources E1 with the second input U4, the first output U1 connects respectively VCC port, the VCC port of voltage-controlled amplifier and 5 ports of audio-frequency power amplifier of speech chip, the second output U2 ground connection.
Claims (4)
1. electric motor car simulated sound device, comprises power supply circuits and loud speaker Y1, it is characterized in that: this device also comprises the playback module (A), audio frequency control module (B) and the audio power amplification module (C) that connect successively;
In described playback module: the VCC port of speech chip (11) connects the RECLED port of speech chip by the first resistance R 1; The VCC port of speech chip connects the PLAYE port of speech chip by the first K switch 1; The RECLED port of speech chip connects the PLAYE port of speech chip by the 3rd K switch 3; The GND port ground connection of speech chip; The SP+ port of speech chip is connected described audio frequency control module;
In described audio frequency control module: voltage-controlled amplifier (12)+VIN port by the first capacitor C 1 connect speech chip SP+ port and+VIN port is by the second resistance R 2 ground connection; The VG port of voltage-controlled amplifier connects the 3rd resistance R 3 that is then used in connection electric motor car speed control unit (22); The VG port of voltage-controlled amplifier connects the GND port of the voltage-controlled amplifier of ground connection by the 4th resistance R 4; The VOUT port of voltage-controlled amplifier is connected described audio power amplification module;
In described audio power amplification module: VOUT port and 1 port that 1 port of audio-frequency power amplifier connects voltage-controlled amplifier by the second capacitor C 2 pass through the 5th resistance R 5 ground connection; 2 ports of audio-frequency power amplifier are by the 6th resistance R 6 ground connection, and 2 ports are connected with 4 ports of the audio-frequency power amplifier that is connected described loud speaker Y1 by the 7th resistance R 7; 3 port ground connection of audio-frequency power amplifier;
Described power supply circuits connect respectively VCC port, the VCC port of voltage-controlled amplifier and 5 ports of audio-frequency power amplifier of speech chip.
2. electric motor car simulated sound device according to claim 1, it is characterized in that: in described power supply circuits, the first input end U3 of DC/DC converter (14) is connected electric vehicle power sources E1 with the second input U4, the first output U1 connects respectively VCC port, the VCC port of voltage-controlled amplifier and 5 ports of audio-frequency power amplifier of speech chip, the second output U2 ground connection.
3. electric motor car simulated sound device according to claim 2, is characterized in that: this device also comprises recording control circuit (D); In described recording control circuit, the VCC port of speech chip connects the REC port of speech chip by second switch K2, and the MIC port of speech chip connects microphone (21).
4. electric motor car simulated sound device according to claim 3, is characterized in that: between the VCC port of described speech chip and the first resistance R 1, be serially connected with LED 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053043.1U CN203708490U (en) | 2014-01-27 | 2014-01-27 | Electrombile simulated sound device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053043.1U CN203708490U (en) | 2014-01-27 | 2014-01-27 | Electrombile simulated sound device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203708490U true CN203708490U (en) | 2014-07-09 |
Family
ID=51058865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053043.1U Expired - Fee Related CN203708490U (en) | 2014-01-27 | 2014-01-27 | Electrombile simulated sound device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203708490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600238A (en) * | 2017-08-11 | 2018-01-19 | 上海天奕无线信息科技有限公司 | A kind of audio analogue means and player method |
-
2014
- 2014-01-27 CN CN201420053043.1U patent/CN203708490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600238A (en) * | 2017-08-11 | 2018-01-19 | 上海天奕无线信息科技有限公司 | A kind of audio analogue means and player method |
| CN107600238B (en) * | 2017-08-11 | 2019-10-18 | 上海天奕无线信息科技有限公司 | A kind of audio analogue means and playback method |
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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 |
Granted publication date: 20140709 Termination date: 20200127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |