CN201685715U - Electronics combined instrument for vehicles - Google Patents
Electronics combined instrument for vehicles Download PDFInfo
- Publication number
- CN201685715U CN201685715U CN2010202219449U CN201020221944U CN201685715U CN 201685715 U CN201685715 U CN 201685715U CN 2010202219449 U CN2010202219449 U CN 2010202219449U CN 201020221944 U CN201020221944 U CN 201020221944U CN 201685715 U CN201685715 U CN 201685715U
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- instrument
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- backlight
- adjusting knob
- resistance
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Abstract
The utility model relates to an electronics combined instrument for vehicles, which belongs to the technical field of automotive display instrument, with the aim to solving the problems with inconvenient regulation of parameters of a tachometer and an odometer once the parameters are recorded by a parameter regulating device. The instrument of the utility model comprises a regulating button with three functional position states, a push-button circuit, and a backlight regulating circuit; the push-button circuit includes three isolated resistance-capacitance circuit, the input ends of which are respectively connected with the three functional position states while the output ends of which are connected with the microcontrollers of the instrument; the backlight regulating circuit is, in effect, an amplified circuit consisting of triodes and electric resistances; the backlight input ends of an LED is connected with the microcontrollers of the instrument and the light controlling collector is connected with the backlight. The electronics combined instrument of the utility model can regulate the parameters of a tachometer and an odometer in real time only with a regulating button, clear a subtotal of mileages, and switch between a and b small mileages. In addition, the illuminating brightness of the instrument can also be regulated. These characteristics all make the instrument especially applicable to automobiles.
Description
Technical field
The utility model belongs to auto meter display device technology field.Relate to a kind of vehicle electronics combination instrument.
Background technology
After existing most of truck combination instrument, its speed gage, mileage meter parameter are provided with device and write by parameter,, need to be equipped with computer, serial ports is set and specialized equipment such as software is set and to realize if parameter is changed.And that the configuration of car load is changed is more frequent, and speed gage, mileage meter parameter change are corresponding more, and traditional parameter change mode is subjected to equipment, personnel's restriction, the requirement of the frequent change of incompatibility parameter.
Summary of the invention
The purpose of this utility model is exactly that weak point at above instrument designs a new instrument, realize that by an adjusting knob the online adjustment of speed gage, mileage meter parameter and the zero clearing of mileage subtotal, a, b subtotal mileage switch functions such as dial illumination brightness regulation.
Technical solution of the present utility model is: a kind of vehicle electronics combination instrument, comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, adjusting knob, liquid crystal display and the shell, liner plate, the glass that contain microcontroller, it is characterized in that: comprise that also one has the adjusting knob of three position of function states, a key circuit and an adjustment circuit backlight; Key circuit comprises three independently resistance-capacitance circuits, wherein, the first resistance-capacitance circuit input end is connected with adjusting knob first position of function, mouth links to each other with instrument microcontroller LCD interface switch terminal, the second resistance-capacitance circuit input end is connected with adjusting knob (6) second position of function, mouth links to each other with instrument microcontroller LIGHT_INC end, and the 3rd resistance-capacitance circuit input end is connected with adjusting knob the 3rd position of function, and mouth links to each other with instrument microcontroller LIGHT_DEC end; Adjustment circuit backlight is the amplifying circuit of being made up of aerotron, resistance, and the LED-backlit input end is connected with the instrument microcontroller, and lamp control collecting electrode is connected with backlight.
The utility model adopts one and has the adjusting knob of three position of function states, a key circuit and an adjustment circuit backlight, wherein, key circuit comprise three with adjusting knob difference in functionality position bonded assembly resistance-capacitance circuit independently, these three independently the output control terminal of resistance-capacitance circuit be connected with instrument microcontroller LCD interface switch terminal, LIGHT_INC end, LIGHT_DEC end respectively, adjustment circuit backlight is the amplifying circuit of being made up of aerotron, resistance, the LED-backlit input end is connected with the instrument microcontroller, and lamp control collecting electrode is connected with backlight.The key circuit principle of work is when adjusting knob is pressed first position of function, and instrument to collect, enters parameter and the interface is set or realizes that the zero clearing of mileage subtotal, a, b subtotal mileage switch according to the definition requirement to this information.Enter after parameter is provided with the interface, require input that the password of parameter is set, after the input password is correct, on LCDs, show current every kilometer pulse count and revolution pulse count, can change parameter setting (rotary knob is adjusted numeral) during at this moment again by adjusting knob to the second position of function.When adjusting knob is not pressed within a certain period of time, just finish modification process, and store related data.Adjustment circuit working principle backlight is when adjusting knob is reset to the 3rd position of function and rotates, the instrument microcontroller changes backlight intensity, backlightly control by aerotron, the instrument microcontroller sends the electric current that a PWM Waveform Control flows through aerotron, when backlight intensity when carrying out conversion, corresponding variation also takes place in the dutycycle of the waveform of PWM, thereby controls backlight.
The utility model has overcome the problem that the setting of combination instrument parameter exists always, adjust every kilometer pulse count of mileage meter, the speed gage number of teeth, instrument rotating speed, speed of a motor vehicle parameter by an adjusting knob, adjusting knob can also be realized functions such as the zero clearing of mileage subtotal, a, the switching of b subtotal mileage, dial illumination brightness regulation simultaneously, just can adapt to the requirement of different automobile types by a instrument, significantly reduced the instrument kind, convenient on-the-spot the adjustment.The utility model is mainly used in the vehicle electronics combination instrument.
Description of drawings
Fig. 1 is an overall diagram of the present utility model;
Fig. 2 is the key circuit figure in the utility model;
Fig. 3 is the adjustment circuit diagram backlight in the utility model.
The specific embodiment
As shown in Figure 1.Whole instrument is made up of the instrument circuit board that contains microcontroller, instrument support, calibrated disc, meter hand, stepping motor, connector, adjusting knob 6, liquid crystal display and shell, liner plate, glass, wherein, adjusting knob 6 is an adjusting knob with three position of function states, and instrument comprises electronic tachometer 1, car speed mileage table 2, crosspointer air-pressure gauge 3, oil pressure indicator 4, volt meter 5, adjusting knob 6, water thermometer 7, oil measurer 8.Except that adjusting knob 6, all identical with existing instrument.
As shown in Figure 2.Key circuit comprises three independently resistance-capacitance circuits, and wherein, the first resistance-capacitance circuit R181A, R184, C183A input end are connected with adjusting knob 6 first position of function SW11, and mouth links to each other with instrument microcontroller LCD interface switch terminal; The second resistance-capacitance circuit R181D, R186, C183D input end are connected with adjusting knob 6 second position of function SW13, and mouth links to each other with instrument microcontroller LIGHT_INC end; The 3rd resistance-capacitance circuit R181B, R185, C183B input end are connected with adjusting knob 6 the 3rd position of function SW15, and mouth links to each other with instrument microcontroller LIGHT_DEC end.The instrument microcontroller is by going up the backlight intensity that signal judgment is adjusted every kilometer pulse count of mileage meter, revolution pulse count and instrument to LIGHT_INC, LIGHT_DEC and the switching of LCD interface.Adjusting knob can also realize that the zero clearing of mileage subtotal, a, b subtotal mileage switch simultaneously.
As shown in Figure 3.Adjustment circuit backlight is the amplifying circuit of being made up of aerotron T11, resistance R 143, R144, and the LED-backlit input end is connected with the instrument microcontroller, and lamp control collecting electrode is connected with backlight.The instrument microcontroller comes control instrument backlight by the break-make of PWM ripple master cock pipe.
Claims (1)
1. vehicle electronics combination instrument, comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, adjusting knob, liquid crystal display and the shell, liner plate, the glass that contain microcontroller, it is characterized in that: comprise that also one has the adjusting knob (6) of three position of function states, a key circuit and an adjustment circuit backlight; Key circuit comprises three independently resistance-capacitance circuits, wherein, first resistance-capacitance circuit (the R181A, R184, C183A) input end is connected with adjusting knob (6) first position of function (SW11), mouth links to each other with instrument microcontroller LCD interface switch terminal, second resistance-capacitance circuit (the R181D, R186, C183D) input end is connected with adjusting knob (6) second position of function (SW13), mouth links to each other with instrument microcontroller LIGHT_INC end, the 3rd resistance-capacitance circuit (R181B, R185, C183B) input end is connected with adjusting knob (6) the 3rd position of function (SW15), and mouth links to each other with instrument microcontroller LIGHT_DEC end; Adjustment circuit backlight is the amplifying circuit of being made up of aerotron (T11), resistance (R143, R144), and the LED-backlit input end is connected with the instrument microcontroller, and lamp control collecting electrode is connected with backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219449U CN201685715U (en) | 2010-05-31 | 2010-05-31 | Electronics combined instrument for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202219449U CN201685715U (en) | 2010-05-31 | 2010-05-31 | Electronics combined instrument for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201685715U true CN201685715U (en) | 2010-12-29 |
Family
ID=43374004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202219449U Expired - Fee Related CN201685715U (en) | 2010-05-31 | 2010-05-31 | Electronics combined instrument for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201685715U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963295A (en) * | 2012-11-19 | 2013-03-13 | 奇瑞汽车股份有限公司 | Backlight circuit of automobile combination instrument and backlight automatic adjustment method thereof |
| CN104718117A (en) * | 2012-08-31 | 2015-06-17 | 标致·雪铁龙汽车公司 | Vehicle information display system |
-
2010
- 2010-05-31 CN CN2010202219449U patent/CN201685715U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104718117A (en) * | 2012-08-31 | 2015-06-17 | 标致·雪铁龙汽车公司 | Vehicle information display system |
| CN104718117B (en) * | 2012-08-31 | 2017-08-25 | 标致·雪铁龙汽车公司 | Vehicle information display |
| CN102963295A (en) * | 2012-11-19 | 2013-03-13 | 奇瑞汽车股份有限公司 | Backlight circuit of automobile combination instrument and backlight automatic adjustment method thereof |
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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: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Free format text: FORMER NAME: DONGFENG XIANGFAN INSTRUMENT SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 441001 No. 227 East Daqing Road, Hubei, Xiangyang Patentee after: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Address before: 441001 No. 227 East Daqing Road, Hubei, Xiangfan Patentee before: Dongfeng Xiangfan Instrument Systems Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20160531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |