CN204269131U - A kind of digital display type electric vehicle instrument assembly - Google Patents
A kind of digital display type electric vehicle instrument assembly Download PDFInfo
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- CN204269131U CN204269131U CN201420806963.6U CN201420806963U CN204269131U CN 204269131 U CN204269131 U CN 204269131U CN 201420806963 U CN201420806963 U CN 201420806963U CN 204269131 U CN204269131 U CN 204269131U
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- module
- display
- instrument assembly
- electric vehicle
- mcu module
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Abstract
The utility model discloses a kind of digital display type electric vehicle instrument assembly, comprise shell, be arranged on LCDs and the pilot lamp symbol sheet of upper surface of outer cover, and the pilot lamp control module arranged in the enclosure, Meter Control Unit and power module, described Meter Control Unit comprises MCU module, the vehicle speed signal load module be connected with MCU module input end, voltage signal load module, current signal load module and electric quantity signal load module, and the LCD driver module to be connected with MCU module output terminal, MCU module exports to LCD driver module after being processed by analysis by each input signal, LCDs is driven to show by LCD driver module, described LCDs comprises speedometer display, voltage table display, reometer display, odometer display and voltameter display.Electric vehicle instrument assembly described in the utility model, has index display accurate, clear, the feature such as water proof and dust proof and overvoltage protection.
Description
Technical field
The utility model relates to a kind of digital display type electric vehicle instrument assembly, belongs to vehicular meter technical field.
Background technology
It is power that electric automobile refers to vehicle power, drives wheels travel with motor, meets the vehicle of road traffic, security legislation requirements.
Mainly there is following defect in traditional electric vehicle instrument assembly:
1. current, what the instrument assembly for electric automobile generally adopted is pointer instrument, and error is large, and vibration strength is poor, and failure rate is high;
2. conventional electric Automobile instrument structure size is bigger than normal, non-watertight, and the electric automobile being only suitable for having pilothouse uses;
3., during general electric motor car charging, charging voltage likely can, higher than rated maximum voltage, cause instrument to burn out.
In view of this, the present inventor studies this, and develop a kind of digital display type electric vehicle instrument assembly specially, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of digital display type electric vehicle instrument assembly, has the display of every index accurate, clear, the feature such as water proof and dust proof and overvoltage protection.
To achieve these goals, solution of the present utility model is:
A kind of digital display type electric vehicle instrument assembly, comprise shell, be arranged on LCDs and the pilot lamp symbol sheet of upper surface of outer cover, and the pilot lamp control module arranged in the enclosure, Meter Control Unit and the power module for powering, described Meter Control Unit comprises MCU module, the vehicle speed signal load module be connected with MCU module input end, voltage signal load module, current signal load module and electric quantity signal load module, and the LCD driver module to be connected with MCU module output terminal, MCU module exports to LCD driver module after being processed by analysis by each input signal, LCDs is driven to show by LCD driver module, described LCDs comprises speedometer display, voltage table display, reometer display, odometer display and voltameter display.
As preferably, described instrument assembly upper surface is provided with further a tempered glass outer cover, firm wear-resisting, the cable exit of the lower surface of instrument assembly shell and debug window are equipped with seal, and then realize the function of whole instrument water proof and dust proof.
As preferably, described MCU module adopts the single-chip microcomputer of auspicious Sa series, and model specifically can be selected to be the singlechip chip of R5F10CGB.
As preferably, described LCD driver module adopts model to be the LCD driving chip of HT1622, for realizing the display of each instrument display in LCDs.
As preferably, described pilot lamp control module comprises each light emitting diode be used to indicate, the current-limiting resistance of connecting with each light emitting diode, electric capacity, and the shunt resistance in parallel with light emitting diode.Power supply and the battery feed of pilot lamp control module are completely isolated, by the conducting of outside rigid line, then realize corresponding instruction by pilot lamp symbol sheet.
As preferably, described vehicle speed signal load module comprises interconnective diode, resistance, electric capacity and triode, for converting speed of a motor vehicle frequency signal to pulse signal, be transported to MCU module, the pulse signal of MCU module by collecting, calculate pulse number, transfer data to LCD driver module, thus drive speedometer display to realize digitizing display, MUC module carries out being transferred to LCD driving chip after Treatment Analysis calculates mileage to receiving vehicle speed signal simultaneously, thus drives odometer display to realize digitizing display.
As preferably, described current signal load module comprises interconnective resistance, electric capacity and operational amplifier, the voltage signal inputted by shunt is transferred to MCU module after operational amplifier amplifies, MCU module is through calculating, be converted to corresponding current signal, and transfer data to LCD driver module, thus drive current table display realizes digitizing display.
As preferably, described voltage signal load module comprises interconnective diode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module after oversampling circuit, MCU module is through calculating, transfer data to LCD driver module, thus driving voltage table display realizes digitizing display.
As preferably, described electric quantity signal load module comprises interconnective diode, triode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module after oversampling circuit, MCU module is converted to corresponding electric quantity signal through calculating, and transfer data to LCD driver module, thus corresponding voltameter display is driven to realize digitizing display.
As preferably; described power module is provided with voltage protection unit; the input end of power module is connected with priming supply end with battery feed respectively; priming supply is transferred to MCU module after oversampling circuit step-down; battery feed by being converted to the burning voltage of 12V and 5V after voltage protection unit after 12V voltage stabilizing chip and 5V voltage stabilizing chip respectively, for instrument assembly modules is powered.The setting of voltage protection unit, can prevent electric automobile from damaging each instrument when charging because of overvoltage.
Above-mentioned digital display type electric vehicle instrument assembly principle of work, external signal is passed to MCU module by each signal input module, MUC module is according to input signal, drive each corresponding instrument display by LCD driver module after Treatment Analysis, and then realize every display that quantizes by instrument display; Each pilot lamp sends different indicator signals according to user action, and meets sheet by pilot lamp and carry out unifying instruction.
Above-mentioned digital display type electric vehicle instrument assembly has following several advantage:
1, drive each instrument to carry out digitizing display by MCU, make display structure more accurate, fast, and at the bottom of failure rate;
2, each instrument display adopts the unified display of LCDs, significantly reduces the area of plane of instrument assembly; And instrument upper surface arranges tempered glass outer cover, lower surface arranges seal, makes whole instrument assembly have higher sealing, water proof and dust proof, can be applied in the environment of awful weather;
3, being provided with voltage protection unit in power module, can preventing electric automobile from damaging each instrument when charging because of overvoltage.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the electric vehicle instrument assembly front elevation of the present embodiment;
Fig. 2 is the electric vehicle instrument assembly rear view of the present embodiment;
Fig. 3 is the rounded seal structural representation of the present embodiment;
Fig. 4 is the quad seal part structural representation of the present embodiment;
Fig. 5 is the Meter Control Unit module frame chart of the present embodiment;
Fig. 6 is the MCU module circuit theory diagrams of the present embodiment;
Fig. 7 is the LCD driver module circuit theory diagrams of the present embodiment;
Fig. 8 is the vehicle speed signal load module circuit theory diagrams of the present embodiment;
Fig. 9 is the current signal load module circuit theory diagrams of the present embodiment;
Figure 10 is the voltage signal load module circuit theory diagrams of the present embodiment;
Figure 11 is the electric quantity signal load module circuit theory diagrams of the present embodiment;
Figure 12 is the pilot lamp control module partial circuit schematic diagram of the present embodiment;
Figure 13 is the power module circuitry schematic diagram of the present embodiment.
Embodiment
As Figure 1-4, a kind of electric vehicle instrument assembly, comprise shell 1, be arranged on LCDs 11 and the pilot lamp symbol sheet 12 of shell 1 upper surface, and the pilot lamp control module arranged in the enclosure, Meter Control Unit and the power module for powering, described instrument assembly LCDs 11 is provided with further a tempered glass outer cover 13, firm wear-resisting, the cable exit of the lower surface of instrument assembly shell 1 and debug window are respectively equipped with rounded seal 14 and quad seal part 15, wherein rounded seal 14 comprises sealed end 16 and lead end 17, sealed end 16 is provided with circular draw-in groove 18, for connection cable exit, lead end is for drawing each bar wire in shell, by the interference fit of circular draw-in groove and cable exit, realize sealing completely, quad seal part 15 is provided with square draw-in groove 19, and square draw-in groove 19 and debug window are also interference fit, by the setting of tempered glass outer cover 13 and rounded seal 14, quad seal part 15, can make the function of whole instrument assembly water proof and dust proof.Described LCDs 1 is provided with speedometer display 41, voltage table display 71, reometer display 51, odometer display 61 and voltameter display 81.Each instrument display adopts the unified display of LCDs 11, significantly reduces the area of plane of instrument assembly; In the present embodiment, the length of described shell is only 190mm, and width is 84mm, more than more half as large than conventional instrument assembly.And instrument upper surface arranges tempered glass outer cover 13, lower surface arranges rounded seal 14 and quad seal part 15, makes whole instrument assembly have higher sealing, water proof and dust proof, can be applied in the environment of awful weather.
As shown in Figure 5, described Meter Control Unit comprises MCU module 2, the vehicle speed signal load module 42 be connected with MCU module 2 input end, voltage signal load module 72, current signal load module 52 and electric quantity signal load module 62, and the LCD driver module 3 to be connected with MCU module 2 output terminal, MCU module 2 exports to LCD driver module 3 after being processed by analysis by each input signal, LCDs is driven to show by LCD driver module
As shown in Figure 6, described MCU module 2 adopts the single-chip microcomputer of auspicious Sa series, and model specifically can be selected to be the singlechip chip of R5F10CGB.Drive each instrument to carry out digitizing display by MCU module 2, make display structure more accurate, fast, and at the bottom of failure rate.
As shown in Figure 7, described LCD driver module 3 adopts model to be the LCD driving chip of HT1622, for realizing the display of each instrument display in LCDs.
As shown in Figure 8, described vehicle speed signal load module 42 comprises interconnective diode, resistance, electric capacity and triode, for converting speed of a motor vehicle frequency signal to pulse signal, be transported to MCU module 2, the pulse signal of MCU module 2 by collecting, calculate pulse number, transfer data to LCD driver module 3, thus drive speedometer display 41 to realize digitizing display, MCU module 2 carries out being transferred to LCD driving chip 3 after Treatment Analysis calculates mileage to receiving vehicle speed signal simultaneously, drives odometer display to realize digitizing display.
As shown in Figure 9, described current signal load module 52 comprises interconnective resistance, electric capacity and operational amplifier, the voltage signal inputted by shunt is transferred to MCU module after operational amplifier amplifies, MCU module is through calculating, be converted to corresponding current signal, and transfer data to LCD driver module, thus drive current table display realizes digitizing display.Shunt is connected with battery feed, according to the upper and lower undulating quantity of voltage signal that shunt collects, realizes the conversion of current signal.
As shown in Figure 10, described voltage signal load module 72 comprises interconnective diode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module 2 after oversampling circuit, MCU module 2 is through calculating, transfer data to LCD driver module 3, thus driving voltage table display 71 realizes digitizing display.
As shown in figure 11, described electric quantity signal load module 62 comprises interconnective diode, triode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module 2 after oversampling circuit, MCU module 2 is converted to corresponding electric quantity signal through calculating, and transfer data to LCD driver module 3, thus corresponding voltameter display 61 is driven to realize digitizing display.
As shown in figure 12, described pilot lamp control module comprises each light emitting diode be used to indicate, the current-limiting resistance of connecting with each light emitting diode, and the shunt resistance in parallel with light emitting diode.Power supply and the battery feed of pilot lamp control module are completely isolated, by the conducting of outside rigid line, then realize corresponding instruction by pilot lamp symbol sheet 12.
As shown in figure 13; the input end of described power module is connected with priming supply end with battery feed respectively; priming supply is transferred to MCU module after oversampling circuit step-down; battery feed by being converted to the burning voltage of 12V and 5V after voltage protection unit 9 after 12V voltage stabilizing chip and 5V voltage stabilizing chip respectively, for instrument assembly modules is powered.The setting of voltage protection unit 9, can prevent electric automobile from damaging each instrument when charging because of overvoltage.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (10)
1. a digital display type electric vehicle instrument assembly, it is characterized in that: comprise shell, be arranged on LCDs and the pilot lamp symbol sheet of upper surface of outer cover, and the pilot lamp control module arranged in the enclosure, Meter Control Unit and the power module for powering, described Meter Control Unit comprises MCU module, the vehicle speed signal load module be connected with MCU module input end, voltage signal load module, current signal load module and electric quantity signal load module, and the LCD driver module to be connected with MCU module output terminal, MCU module exports to LCD driver module after being processed by analysis by each input signal, LCD driver module drives LCDs to show, described LCDs comprises speedometer display, voltage table display, reometer display, odometer display and voltameter display.
2. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, is characterized in that: described instrument assembly upper surface of outer cover is provided with further a tempered glass outer cover; The cable exit of instrument assembly shell lower surface and debug window are equipped with seal.
3. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, is characterized in that: described MCU module adopts the single-chip microcomputer of auspicious Sa series.
4. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, is characterized in that: described LCD driver module employing model is the LCD driving chip of HT1622.
5. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, it is characterized in that: described pilot lamp control module comprises each light emitting diode be used to indicate, the current-limiting resistance of connecting with each light emitting diode, electric capacity, and the shunt resistance in parallel with light emitting diode.
6. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, it is characterized in that: described vehicle speed signal load module comprises interconnective diode, resistance, electric capacity and triode, convert the speed of a motor vehicle frequency signal of input to pulse signal, be transported to MCU module, the pulse signal of MCU module by collecting, calculate pulse number, transfer data to LCD driver module, thus drive speedometer display to realize digitizing display, MUC module carries out being transferred to LCD driving chip after Treatment Analysis calculates mileage to receiving vehicle speed signal simultaneously, thus drive odometer display to realize digitizing display.
7. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, it is characterized in that: described current signal load module comprises interconnective resistance, electric capacity and operational amplifier, the voltage signal inputted by shunt is transferred to MCU module after operational amplifier amplifies, MCU module is through calculating, be converted to corresponding current signal, and transfer data to LCD driver module, thus drive current table display realizes digitizing display.
8. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, it is characterized in that: described voltage signal load module comprises interconnective diode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module after oversampling circuit, MCU module is through calculating, transfer data to LCD driver module, thus driving voltage table display realizes digitizing display.
9. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1, it is characterized in that: described electric quantity signal load module comprises interconnective diode, triode, resistance and electric capacity, the voltage signal that battery feed inputs is transferred to MCU module after oversampling circuit, MCU module is converted to corresponding electric quantity signal through calculating, and transfer data to LCD driver module, thus corresponding voltameter display is driven to realize digitizing display.
10. a kind of digital display type electric vehicle instrument assembly as claimed in claim 1; it is characterized in that: described power module is provided with voltage protection unit; the input end of power module is connected with priming supply end with battery feed respectively; priming supply is transferred to MCU module after oversampling circuit step-down; battery feed by being converted to the burning voltage of 12V and 5V after voltage protection unit after 12V voltage stabilizing chip and 5V voltage stabilizing chip respectively, for instrument assembly modules is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806963.6U CN204269131U (en) | 2014-12-17 | 2014-12-17 | A kind of digital display type electric vehicle instrument assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806963.6U CN204269131U (en) | 2014-12-17 | 2014-12-17 | A kind of digital display type electric vehicle instrument assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269131U true CN204269131U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420806963.6U Expired - Fee Related CN204269131U (en) | 2014-12-17 | 2014-12-17 | A kind of digital display type electric vehicle instrument assembly |
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| CN (1) | CN204269131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188051A (en) * | 2018-09-18 | 2019-01-11 | 方碧水 | A kind of novel voltage detection device |
-
2014
- 2014-12-17 CN CN201420806963.6U patent/CN204269131U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188051A (en) * | 2018-09-18 | 2019-01-11 | 方碧水 | A kind of novel voltage detection device |
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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: 20150415 Termination date: 20151217 |
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| EXPY | Termination of patent right or utility model |