CN203520092U - Pedestrian sound prompting device used for new energy automobile - Google Patents
Pedestrian sound prompting device used for new energy automobile Download PDFInfo
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- CN203520092U CN203520092U CN201320710856.9U CN201320710856U CN203520092U CN 203520092 U CN203520092 U CN 203520092U CN 201320710856 U CN201320710856 U CN 201320710856U CN 203520092 U CN203520092 U CN 203520092U
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Abstract
The utility model relates to a pedestrian sound prompting device used for a new energy automobile. The pedestrian sound prompting device comprises an upper shell, a lower shell and a circuit module. The circuit module comprises a circuit board, a sound source component, a power supply component, a power amplifier chip, a loudspeaker, a wavetable synthesized chip, a digital processing chip and a microcontroller. The microcontroller is used for judging the received automobile speed information and gear information. A serial interface of the microcontroller is communicated with the digital processing chip and a command is transmitted. After the digital processing chip receives the command of the microcontroller, data synthesized by a wavetable are processed and the processed signals are sent to the power amplifier chip. The power amplifier chip amplifies the received signals and pushes the loudspeaker to work. Sound similar to that of the automobile in real driving is generated so that the automobile in driving is realized by pedestrians. A circuit capable of effectively inhibiting abruptly-changed power supply surge is adopted so that the pedestrian sound prompting device is great in grounding of circuit design, high in anti-interference capability and high in product stability.
Description
Technical field
The utility model relates to sound alarming device technical field, relates in particular to a kind of pedestrian's sound prompting device of new-energy automobile.
Background technology
At present, in countries in the world, energy-conserving and environment-protective become common recognition, and new-energy automobile is because the advantage of extremely low discharge and even zero-emission is done one's utmost to promote.Pollution-free and noiseless is the advantage of new-energy automobile, new-energy automobile, in low speed driving, can not sounded, and for the pedestrian who has been accustomed to the running noise that orthodox car sends, vehicle silent and that arrive exists great potential safety hazard; When running at high speed, noise and orthodox car that new-energy automobile produces are very nearly the same.American National highway traffic safety management board, at issue on January 7th, 2013 draft, requires electric motor car and hybrid electric vehicle to send noise when low speed driving, and the too peace and quiet of avoiding travelling cause pedestrian cannot find in time and avoid vehicle.
For the low noise feature of new-energy automobile, developed the multiple device for sound prompting passerby at present, but there is following problem in these devices: the sound sending and orthodox car sound are not inconsistent, make pedestrian cannot recognize that automobile travels; Product stability is poor, can not stable sounding when low speed driving; Poor anti jamming capability.Therefore, need a kind of novel pedestrian's sound prompting device.
Summary of the invention
The shortcoming existing for overcoming above-mentioned prior art, the purpose of this utility model is to provide a kind of pedestrian's sound prompting device, by the variation of sound, reminds pedestrian to note vehicle.
For achieving the above object, the utility model is by the following technical solutions: a kind of pedestrian's sound prompting device for new-energy automobile, comprise upper shell, lower house and circuit module, described circuit module comprises circuit board, source of sound assembly, power supply module, power amplifier chip, loudspeaker, wave table synthesis chip, digital processing chip and microcontroller, microcontroller judges for the speed information receiving and gear information, by serial line interface and digital processing chip communication the transmission command of microcontroller, digital processing chip is processed and the signal after processing is sent to power amplifier chip the synthetic data of wave table after receiving microcontroller order, power amplifier chip amplifies the signal of receiving and promotes described speaker operation.
Further, input end at described power supply module is provided with common mode inductance, each power import at described circuit module is provided with Transient Suppression Diode, the power ground of described circuit module, artificial circuit part ground connection, digital circuit partial earth by three kinds of single-ended connection ground connection, prevent the direct interference of earth signal to described sound prompting device respectively.
Further, described upper shell is provided with heat radiator, described lower house is connected with described upper shell by the first screw and forms the first space consisting of the lower surface of upper shell and the upper surface of upper shell, described circuit board is positioned at the inside in the first space, and described power amplifier chip, wave table synthesis chip, digital processing chip and microcontroller are fixed on circuit board successively.
Preferably, described power amplifier chip, by two through holes of lower house, adopts the second screw to be fixed on the inwall of the heat radiator of upper shell, and described upper shell and described lower house all adopt aluminum alloy materials.
Further, described microcontroller adopts I by the first resistance, the second resistance
2c bus mode sends control command to digital processing chip, by controlling wave table synthesis chip, send digital audio-frequency data to digital processing chip, after receiving the data that are disposed of digital processing chip, described microcontroller enables to control to power amplifier chip by the 3rd resistance, the 4th resistance, the 5th resistance, triode Q1 and the 6th resistance, digital processing chip sends to power amplifier chip to promote loudspeaker sounding sound signal, and bulk supply is provided by power supply module.
The beneficial effects of the utility model are: can send the sound that similar automobile truly travels, the automobile in pedestrian being recognized travel; The effectively power surge of inhibitory mutagenesis, circuit design has good earth, and antijamming capability is strong, and the stability of product is high; Product is fast to the reflection of signal, highly sensitive, can in low speed driving process, stablize and sound, and has good application value and good market outlook.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit block diagram;
Fig. 3 is the utility model simplified electrical circuit diagram.
In figure: 1-upper shell, 2-circuit board, 3-power amplifier chip, 4-wave table synthesis chip, 5-digital processing chip, 6-microcontroller, 7-lower house.
Embodiment
Below in conjunction with drawings and Examples, principle of the present utility model and advantage are further elaborated.
Embodiment 1
A kind of pedestrian's sound prompting device for new-energy automobile, comprise upper shell, lower house and circuit module, described circuit module comprises circuit board, source of sound assembly, power supply module, power amplifier chip, loudspeaker, wave table synthesis chip, digital processing chip and microcontroller, microcontroller judges for the speed information receiving and gear information, by serial line interface and digital processing chip communication the transmission command of microcontroller, digital processing chip is processed and the signal after processing is sent to power amplifier chip the synthetic data of wave table after receiving microcontroller order, power amplifier chip amplifies the signal of receiving and promotes described speaker operation.
Embodiment 2
Embodiment 2 has the essentially identical structure with embodiment 1, difference is, input end at described power supply module is provided with common mode inductance, each power import at described circuit module is provided with Transient Suppression Diode, the power ground of described circuit module, artificial circuit part ground connection, digital circuit partial earth by three kinds of single-ended connection ground connection, prevent the direct interference of earth signal to described sound prompting device respectively.
Embodiment 3
Embodiment 3 has the essentially identical structure with embodiment 2, difference is, described upper shell is provided with heat radiator, described lower house is connected with described upper shell by the first screw and forms the first space consisting of the lower surface of upper shell and the upper surface of upper shell, described circuit board is positioned at the inside in the first space, described power amplifier chip, wave table synthesis chip, digital processing chip and microcontroller are fixed on circuit board successively, described power amplifier chip is by two through holes of lower house, adopt the second screw to be fixed on the inwall of the heat radiator of upper shell, described upper shell and described lower house all adopt aluminum alloy materials.
As Figure 1-3, this upper shell 1 is provided with heat radiator, in upper shell 1, be provided with circuit board 2, circuit board 2 passes through lower house 7 by screw and is fixed in upper shell 1, by screw, power amplifier chip 3 on circuit board is fixed on the heat radiator of housing 1, circuit board is provided with microcontroller 6, digital processing chip 5, wave table synthesis chip 4, power amplifier chip 3, power amplifier chip 3 is by 7 two through holes of lower house, adopt two screws to be fixed on the heat radiator inwall of upper shell 1, to improve radiating effect, microcontroller 6 is by serial port and digital processing chip 5 communications, as shown in Figure 3, pass through R1, R2 adopts I
2c bus mode sends control command to digital processing chip 5, by controlling wave table synthesis chip 4, send digital audio-frequency data to digital processing chip 5, receiving being disposed after data of digital processing chip 5, microcontroller 6 enables to control to power amplifier chip 3 by R3, R4, R5, Q1, R6, and digital processing chip 5 sends to power amplifier chip 3 to promote loudspeaker sounding sound signal, bulk supply is provided by power supply.
The beneficial effects of the utility model are: upper shell 1 and lower house 7 adopt aluminum alloy materials, and circuit board 2 contacts by pilot hole large area with upper shell 1, can guarantee circuit board good earth, can have good static release channel; By increase Transient Suppression Diode at each power import place, the effective peak voltage of inhibitory mutagenesis, the Electro Magnetic Compatibility of raising product; At installation's power source entrance, increase common mode inductance, can effectively suppress common mode interference signal, improve the antijamming capability of device; By power ground, artificial circuit part ground connection, digital circuit partial earth are connected respectively, three kinds of ground, finally by single-ended connection, prevent that earth signal from directly disturbing, and have better strengthened the antijamming capability of device.In addition, in Software for Design, strict regulations the job order of each several part of device, powering on and first closing power amplifier chip 3, the noise in the time of can reducing to start shooting to greatest extent during power down.
The foregoing is only the utility model preferred embodiment, non-so limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as doing by the utility model instructions and graphic content, all should be contained in the scope of the claims of the present utility model.
Claims (5)
1. the pedestrian's sound prompting device for new-energy automobile, comprise upper shell, lower house and circuit module, it is characterized in that: described circuit module comprises circuit board, source of sound assembly, power supply module, power amplifier chip, loudspeaker, wave table synthesis chip, digital processing chip and microcontroller, microcontroller judges for the speed information receiving and gear information, by serial line interface and digital processing chip communication the transmission command of microcontroller, digital processing chip is processed and the signal after processing is sent to power amplifier chip the synthetic data of wave table after receiving microcontroller order, power amplifier chip amplifies the signal of receiving and promotes described speaker operation.
2. the pedestrian's sound prompting device for new-energy automobile according to claim 1, it is characterized in that: the input end at described power supply module is provided with common mode inductance, each power import at described circuit module is provided with Transient Suppression Diode, the power ground of described circuit module, artificial circuit part ground connection, digital circuit partial earth by three kinds of single-ended connection ground connection, prevent the direct interference of earth signal to described sound prompting device respectively.
3. the pedestrian's sound prompting device for new-energy automobile according to claim 1, it is characterized in that: described upper shell is provided with heat radiator, described lower house is connected with described upper shell by the first screw and forms the first space consisting of the lower surface of upper shell and the upper surface of upper shell, described circuit board is positioned at the inside in the first space, and described power amplifier chip, wave table synthesis chip, digital processing chip and microcontroller are fixed on circuit board successively.
4. the pedestrian's sound prompting device for new-energy automobile according to claim 3, it is characterized in that: described power amplifier chip is by two through holes of lower house, adopt the second screw to be fixed on the inwall of the heat radiator of upper shell, described upper shell and described lower house all adopt aluminum alloy materials.
5. the pedestrian's sound prompting device for new-energy automobile according to claim 1, is characterized in that: described microcontroller adopts I by the first resistance, the second resistance
2c bus mode sends control command to digital processing chip, by controlling wave table synthesis chip, send digital audio-frequency data to digital processing chip, after receiving the data that are disposed of digital processing chip, described microcontroller enables to control to power amplifier chip by the 3rd resistance, the 4th resistance, the 5th resistance, triode Q1 and the 6th resistance, digital processing chip sends to power amplifier chip to promote loudspeaker sounding sound signal, and bulk supply is provided by power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710856.9U CN203520092U (en) | 2013-11-12 | 2013-11-12 | Pedestrian sound prompting device used for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710856.9U CN203520092U (en) | 2013-11-12 | 2013-11-12 | Pedestrian sound prompting device used for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520092U true CN203520092U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320710856.9U Expired - Fee Related CN203520092U (en) | 2013-11-12 | 2013-11-12 | Pedestrian sound prompting device used for new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203520092U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605305A (en) * | 2013-11-12 | 2014-02-26 | 吉林市航盛宏宇电子有限公司 | Pedestrian sound prompting apparatus for new energy vehicle |
| CN107801355A (en) * | 2017-10-25 | 2018-03-13 | 成都西井科技有限公司 | The heat-dissipating casing and installation method of a kind of power amplifier |
-
2013
- 2013-11-12 CN CN201320710856.9U patent/CN203520092U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605305A (en) * | 2013-11-12 | 2014-02-26 | 吉林市航盛宏宇电子有限公司 | Pedestrian sound prompting apparatus for new energy vehicle |
| CN107801355A (en) * | 2017-10-25 | 2018-03-13 | 成都西井科技有限公司 | The heat-dissipating casing and installation method of a kind of power amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JILIN HANGSHENG ELECTRONICS CO., LTD. Free format text: FORMER NAME: JILIN HANGSHENG HONGYU ELECTRON CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 132013 No. 3100, deep East Road, hi tech Zone, Jilin, Jilin Patentee after: JILIN HANGSHENG ELECTRONICS CO., LTD. Address before: 132013 No. 100, Shenzhen street, hi tech Zone, Jilin, Jilin Patentee before: Jilin Hangsheng Hongyu Electronics Co., Ltd. |
|
| 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: 20140402 Termination date: 20191112 |