CN202368378U - Automobile electronic combined instrument - Google Patents
Automobile electronic combined instrument Download PDFInfo
- Publication number
- CN202368378U CN202368378U CN 201120422613 CN201120422613U CN202368378U CN 202368378 U CN202368378 U CN 202368378U CN 201120422613 CN201120422613 CN 201120422613 CN 201120422613 U CN201120422613 U CN 201120422613U CN 202368378 U CN202368378 U CN 202368378U
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- Prior art keywords
- instrument
- circuit
- power supply
- circuit board
- channel mos
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The utility model discloses an automobile electronic combined instrument, belonging to the technical field of automobile instrument display devices and mainly solving a problem of higher power consumption of the whole instrument circuit after an ignition power supply of a finished vehicle is powered down. The automobile electric combined instrument is mainly characterized by comprising an instrument circuit board including a micro-controller, an instrument bracket, dials, instrument pointers, a stepping motor, plug-in connectors, push buttons, stroke-segmented liquid crystal screens, a shell, a liner plate and glass; the instrument circuit board is integrated with a power supply on-off switch control circuit; an input end of the power supply on-off switch control circuit is connected with an output end of a DC/DC (Direct Current) power supply conversion circuit, and a control end of the power supply on-off switch control circuit is connected with that of the micro-controller and an output end of the power supply on-off switch control circuit is connected with each circuit power input end on the instrument circuit board. The automobile electronic combined instrument disclosed by the utility model has the features that the instrument power circuit has low power consumption, low heat productivity, high efficiency and energy saving and is mainly applied to the automobile electronic combined instrument.
Description
Technical field
The utility model belongs to auto meter display device technology field.Be specifically related to a kind of vehicle electronics combination instrument.
Background technology
Existing truck combination instrument great majority are made up of the instrument circuit board that contains microcontroller, instrument support, calibrated disc, meter hand, stepping motor, connector, button, liquid crystal display and shell, liner plate, glass; All require instrument to have the clock Presentation Function, and requirement clock under the condition that the car load priming supply is closed still can keep long-play.Be cost-cutting, the clock timing function of existing most of combination instruments provides by the microcontroller on the instrument circuit board.After the car load priming supply is closed, can continue operation for keeping clock, instrument needs the car load battery feed that instrument is continued power supply, to ensure the microcontroller normal operation on the wiring board.Because the working power+5V of the power supply+5V of most of analogous circuit and digital circuit and microcontroller is all from same DC/DC power conversion chip on the wiring board; When microcontroller was worked, other circuit that does not temporarily have functions of use was also at the battery consumption power supply.Its weak point is that power consumption is bigger, is unfavorable for practicing thrift the car load accumulator electric-quantity.
Summary of the invention
The purpose of the utility model provides a kind of vehicle electronics combination instrument to above-mentioned weak point exactly; It contains on the instrument circuit board of microcontroller and has adopted the on/off ON-OFF control circuit; After the power down of car load priming supply; The vehicle electronics combination instrument can be gathered the part+5V power supply of the temporary transient no functions of use that still exists on power down information and the clear the circuit plate automatically; Power consumption with vehicle electronics combination instrument after the reduction car load igniting power down reduces the consumption of vehicle electronics combination instrument to the car load storage battery, practices thrift the storage electric weight of storage battery.
The technical solution of the utility model is: a kind of vehicle electronics combination instrument; Comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, a segmentation liquid crystal display and the shell, liner plate, the glass that contain microcontroller, it is characterized in that: integrated on/off ON-OFF control circuit on the described instrument circuit board; The input end of this on/off ON-OFF control circuit can be connected with the mouth of DC/DC power-switching circuit, and control end is connected with the control end of microcontroller, and the power input of various circuit is connected on mouth and the instrument circuit board.
On/off ON-OFF control circuit described in the technical solution of the utility model is made up of single P channel MOS tube chip, sample circuit and filter circuit.Sample circuit is connected with the control end of single P channel MOS tube chip, and filter circuit is connected with the mouth of single P channel MOS tube chip.
Sample circuit described in the technical solution of the utility model is composed in series by pull-up resistor and current-limiting resistance.One end of pull-up resistor is connected with+5V, and the other end is connected with current-limiting resistance, and pull-up resistor is connected with the control end of single P channel MOS tube chip with the coupling end of current-limiting resistance, and the other end of current-limiting resistance is connected with the control end of microcontroller.
Filter circuit described in the technical solution of the utility model is made up of the electric capacity of two parallel connections, has the accumulation of energy effect simultaneously concurrently.
The utility model comprises instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, a segmentation liquid crystal display and shell, liner plate, the glass that contains microcontroller; Because integrated on/off ON-OFF control circuit on instrument circuit board; And the input end of this on/off ON-OFF control circuit is connected with the mouth of DC/DC power-switching circuit, and control end is connected with the control end of microcontroller, and the power input of each control circuit is connected on mouth and the instrument circuit board; Thereby when automobile whole instrument after igniting needs supply regular power work; The control end output low level of microcontroller, the control end of single P channel MOS tube chip collects low level, then single P channel MOS tube chip output voltage identical with input; For various circuit on the instrument circuit board provide power supply, make its normal operation; Otherwise after car load igniting was closed, the control end of microcontroller was unsettled, and the output of single P channel MOS tube chip is broken off, realize except that clock can continue the electrician does, each control circuit battery consumption power supply no longer on the instrument circuit board.
The utility model has overcome the bigger problem of whole instrument circuit power consumption after the car load igniting power down, has the advantages that the instrument power circuit power consumption is little, cal val is low, energy-efficient.The utility model is mainly used in the vehicle electronics combination instrument.
Description of drawings
Fig. 1 is the overall diagram of the utility model.
Fig. 2 is the utility model on/off ON-OFF control circuit figure.
The specific embodiment
Like Fig. 1, shown in Figure 2, the utility model M51 state four low combos are closed instrument and are made up of the instrument circuit board that contains microcontroller, instrument support, calibrated disc, meter hand, stepping motor, connector, button, a segmentation liquid crystal display and shell 3, liner plate 5, glass 6.Button comprises left button 7 and right button 4, and a segmentation liquid crystal display comprises clock liquid crystal display 1 and mileage liquid crystal display 2, and single P channel MOS tube chip adopts single P channel MOS tube chip U3 of FDC658P type.The 4th pin of single P channel MOS tube chip U3 is an input pin, the mouth+5V of power connection conversion chip.The 3rd pin of single P channel MOS tube chip U3 is the chip controls pin; Connect the sample circuit of forming by pull-up resistor R0301 and current-limiting resistance R0302; Pull-up resistor R0301 connects+high level voltage of 5V, and current-limiting resistance R0302 is connected with the control pin Vcc_CTRL of microcontroller.The 1st, 2,5,6 pin of single P channel MOS tube chip U3 are output pin, after the filter circuit Filtering Processing, export, and filter circuit is made up of two capacitor C 0301, C0302.When instrument need be cut off the out-put supply Vcc of single P channel MOS tube chip U3, then the control pin Vcc_CTRL of microcontroller was unsettled at this moment, and the control pin of single P channel MOS tube chip U3 is a high level, and the output of single P channel MOS tube chip U3 is promptly broken off; Otherwise; When instrument needs out-put supply Vcc, this moment microcontroller control pin Vcc_CTRL output low level, the control pin of single P channel MOS tube chip U3 is a low level; The output of single P channel MOS tube chip U3 is promptly got through, and all circuit of instrument get final product normal operation.
Claims (6)
1. vehicle electronics combination instrument; Comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button (7,4), a segmentation liquid crystal display and the shell (3), liner plate (5), the glass (6) that contain microcontroller, it is characterized in that: integrated on/off ON-OFF control circuit on the described instrument circuit board; The input end of this on/off ON-OFF control circuit can be connected with the mouth of DC/DC power-switching circuit, and control end is connected with the control end of microcontroller, and each circuit power input end is connected on mouth and the instrument circuit board.
2. a kind of vehicle electronics combination instrument according to claim 1 is characterized in that: described appearance on/off ON-OFF control circuit is made up of single P channel MOS tube chip (U3), sample circuit and filter circuit.
3. a kind of vehicle electronics combination instrument according to claim 2 is characterized in that: described sample circuit is connected with the control end of single P channel MOS tube chip (U3), and filter circuit is connected with the mouth of single P channel MOS tube chip (U3).
4. a kind of vehicle electronics combination instrument according to claim 2 is characterized in that: described sample circuit is composed in series by pull-up resistor (R0301) and current-limiting resistance (R0302).
5. a kind of vehicle electronics combination instrument according to claim 4; It is characterized in that: an end of described pull-up resistor (R0301) is connected with+5V; The other end is connected with current-limiting resistance (R0302); Pull-up resistor (R0301) is connected with the control end of single P channel MOS tube chip (U3) with the coupling end of current-limiting resistance (R0302), and the other end of current-limiting resistance (R0302) is connected with the control end (Vcc_CTRL) of microcontroller.
6. a kind of vehicle electronics combination instrument according to claim 2 is characterized in that: described filter circuit is made up of the electric capacity (C0301, C0302) of two parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120422613 CN202368378U (en) | 2011-10-31 | 2011-10-31 | Automobile electronic combined instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120422613 CN202368378U (en) | 2011-10-31 | 2011-10-31 | Automobile electronic combined instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368378U true CN202368378U (en) | 2012-08-08 |
Family
ID=46592097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120422613 Expired - Fee Related CN202368378U (en) | 2011-10-31 | 2011-10-31 | Automobile electronic combined instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578389A (en) * | 2013-11-06 | 2014-02-12 | 四川金网通电子科技有限公司 | Compatible liquid crystal instrument and implementation method thereof |
-
2011
- 2011-10-31 CN CN 201120422613 patent/CN202368378U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578389A (en) * | 2013-11-06 | 2014-02-12 | 四川金网通电子科技有限公司 | Compatible liquid crystal instrument and implementation method thereof |
| CN103578389B (en) * | 2013-11-06 | 2016-02-10 | 四川金网通电子科技有限公司 | Compatible liquid crystal instrument and its implementation |
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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: 20120808 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |