CN202119455U - Electric bicycle instrument - Google Patents
Electric bicycle instrument Download PDFInfo
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- CN202119455U CN202119455U CN2011202320896U CN201120232089U CN202119455U CN 202119455 U CN202119455 U CN 202119455U CN 2011202320896 U CN2011202320896 U CN 2011202320896U CN 201120232089 U CN201120232089 U CN 201120232089U CN 202119455 U CN202119455 U CN 202119455U
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Abstract
The utility model discloses an electric bicycle instrument which includes an LCD display which displays the real-time running information, a main control IC, an input interface circuit which receives an external working state signal, an output interface circuit which transmits a speed feedback signal, an EEPROM, and a power supply circuit. The LCD display, the input interface circuit, the output interface circuit, and the EEPROM are electrically connected with the main control IC, and the power supply circuit is electrically connected with the main control IC. Because the electric bicycle instrument uses the LCD display, the working state of an electric bicycle can be completely displayed. The working state includes the driving speed, the total driving mileage, the present driving mileage, the driving time, the charging/discharging current of a battery, the electric quantity of the battery, and the left/right turning indication, the above data can help a user to timely understand the running condition of the electric bicycle.
Description
Technical field
The utility model relates to the electric bicycle technical field, is specifically related to a kind of electric bicycle instrument.
Background technology
Electric bicycle is rotated by the motor-driven wheel, and the power supply of motor derives from battery.Many states during electric bicycle goes are for user's perception, the for example travel speed of electric bicycle, current driving mileage, total kilometres, battery charging and discharging electric current, battery dump energy etc., and these information that all are not to use the person to be concerned about very much.Yet conventional electric-powered bicycle instrument adopts mechanical pointer, and institute's content displayed is less, can not show the duty of electric motor car comprehensively, makes the user can not in time understand the operation conditions of electric bicycle.
The utility model content
The purpose of the utility model is to overcome deficiency of the prior art, and a kind of electric bicycle instrument is provided, and this electric bicycle instrument can show the duty of electric bicycle comprehensively, helps the operation conditions that the user in time understands electric bicycle.
The purpose of the utility model realizes through following scheme: a kind of electric bicycle instrument; Comprise LCD display, the main control IC that is used to show real time execution information, input interface circuit, the output interface circuit that is used for the output speed feedback signal, EEPROM and the power circuit that receives the operate outside status signal; Said LCD display, said input interface circuit, said output interface circuit, said EEPROM all are electrically connected with said main control IC, and said power circuit is electrically connected with said main control IC.
Also comprise write device and parameter edit manager; Said EEPROM has input port; Said parameter edit manager is electrically connected with the input end of said write device through data line, and the output terminal of said write device is electrically connected with the input port of said EEPROM through data line.
3 serial line interfaces of said EEPROM are connected with main control IC through resistance R 19, resistance R 20, resistance R 21 respectively.
Said operate outside status signal comprises left rotaring signal, right turn signal, positive current signal, negative current signal and hall signal, and said left rotaring signal, said right turn signal, said positive current signal, said negative current signal and said hall signal are handled through flowing to said main control IC after dividing potential drop, the RC filtering in said input interface circuit.
The indication of level Four electric weight, the digital running time that the display panel of said LCD display has that imitative clock-type reometer shows, digital speed shows, digital mileage shows, show with bar blocks show and about turn to indication.Total kilometrage and current mileage Alternation Display.
Said power circuit comprises current-limiting resistance, backlight LED, constant-current circuit, constant voltage circuit, three-terminal voltage-stabilizing circuit and the power output end of power input, 4 parallel connections; The positive pole of the current-limiting resistance of said power input, described 4 parallel connections, said backlight LED, said constant-current circuit is connected in series successively; The negative pole of said constant-current circuit is connected with the positive pole of said constant voltage circuit, the positive pole of said three-terminal voltage-stabilizing circuit respectively; The positive pole of the negative pole electric capacity E1 of said constant voltage circuit is connected the minus earth of electric capacity E1 with the positive pole of said three-terminal voltage-stabilizing circuit.The negative pole of said three-terminal voltage-stabilizing circuit is connected with said power output end.
Said constant-current circuit comprises resistance R 7, resistance R 8, diode D1, diode D2 and triode Q1; One end of said resistance R 7 and the collector of triode Q1 are connected to form the positive pole of constant-current circuit; The other end of said resistance R 7 is connected with the base stage of said triode Q1; The anode of said diode D1 links to each other with the base stage of said triode Q1; The negative electrode of said diode D1 links to each other with the anode of said diode D2, and the emitter of said triode Q1 is connected with an end of said resistance R 8, and the other end of the negative electrode of said diode D2 and said resistance R 8 is connected to form the negative pole of constant-current circuit.
Said constant voltage circuit comprises resistance R 9, resistance R 10, resistance R 11, triode Q2; One end of said resistance R 9 and an end of said resistance R 11 are connected to form the positive pole of constant voltage circuit; The other end of said resistance R 9 is connected with the base stage of said triode Q2; The other end of said resistance R 11 is connected with the collector of said triode Q2; One end of said resistance R 10 is connected with the base stage of said triode Q2, and the emitter of the other end of said resistance R 10 and said triode Q2 is connected to form the negative pole of constant-current circuit.
The advantage of the utility model is: because the utility model uses LCD display; LCD display can show the duty of electric bicycle comprehensively; Comprising the charging and discharging currents of the travel speed of electric bicycle, total kilometres, current driving mileage, running time, battery, battery electric quantity and about turn to indication, these data help the operation conditions that the user in time understands electric bicycle.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the electric bicycle instrument of the utility model;
Fig. 2 is the display panel of LCD display of the electric bicycle instrument of the utility model;
Fig. 3 is that the parameter editor of the electric bicycle instrument of the utility model writes synoptic diagram;
Fig. 4 is the power circuit diagram of the electric bicycle instrument of the utility model;
Fig. 5 is the input interface circuit figure of the electric bicycle instrument of the utility model;
Fig. 6 is the circuit diagram of LCD display of the electric bicycle instrument of the utility model;
Fig. 7 is the circuit diagram of EEPROM of the electric bicycle instrument of the utility model;
Fig. 8 is the circuit diagram of main control IC of the electric bicycle instrument of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1; A kind of electric bicycle instrument; Comprise LCD display, the main control IC that is used to show real time execution information, input interface circuit, the output interface circuit that is used for the output speed feedback signal, EEPROM and the power circuit that receives the operate outside status signal; LCD display, input interface circuit, output interface circuit, EEPROM all are electrically connected with main control IC, and power circuit is electrically connected with main control IC.
Main control IC handles the various signals from input interface circuit, and information is presented on the LCD display.EEPROM is in order to guarantee that parameter and job information are not lost after the power down, and it is used for stored parameter and job information.Power supply supplies power for main control IC, EEPROM through power circuit.
As shown in Figure 3; The utility model also comprises write device and parameter edit manager; EEPROM has input port, and the parameter edit manager is electrically connected with the input end of write device through data line, and the output terminal of write device is electrically connected with the input port of EEPROM through data line.The parameter edit manager is installed on the computer; It can edit the parameters of electric bicycle; Magnitude of voltage, the current mileage validity of the calibration voltage during comprising diameter of tyres, every circle umber of pulse, every 0.1Km umber of pulse, high cell voltage and low battery voltages and every grade of battery indication is selected, total kilometrage validity is selected, acceleration-deceleration validity is selected, controller temperature validity is selected, effectively triggering level and brake level are selected; Carry out the parameter setting according to product requirement; The parameter that edits then downloads in the write device through the usb data line, and write device directly is connected with EEPROM, can write data among the EEPROM.Produce for ease, the parameters of electric bicycle can be edited in computer, writes among the EEPROM through write device then, to adapt to different electric bicycle types.
As shown in Figure 7,3 serial line interfaces of EEPROM are connected with main control IC through resistance R 19, resistance R 20, resistance R 21 respectively.
As shown in Figure 5; The operate outside status signal comprises left rotaring signal, right turn signal, positive current signal, negative current signal and hall signal, and left rotaring signal, right turn signal, positive current signal, negative current signal and hall signal are handled through flowing to main control IC after dividing potential drop, the RC filtering in input interface circuit.The indication of level Four electric weight, the digital running time that as shown in Figure 2, the display panel of LCD display has that imitative clock-type reometer shows, digital speed shows, digital mileage shows, show with bar blocks show and about turn to indication.Total kilometrage and current mileage can Alternation Display.
As shown in Figure 4; Power circuit comprises current-limiting resistance, backlight LED, constant-current circuit, constant voltage circuit, three-terminal voltage-stabilizing circuit and the power output end of power input, 4 parallel connections; Power input, current-limiting resistance, backlight LED, the positive pole of constant-current circuit of 4 parallel connections be connected in series successively; The negative pole of constant-current circuit is connected with the positive pole of constant voltage circuit, the positive pole of three-terminal voltage-stabilizing circuit respectively; The negative pole of constant voltage circuit is connected with the positive pole of three-terminal voltage-stabilizing circuit through electric capacity E1, and the negative pole of three-terminal voltage-stabilizing circuit is connected with power output end.
Above-mentioned constant-current circuit comprises resistance R 7, resistance R 8, diode D1, diode D2 and triode Q1; One end of resistance R 7 and the collector of triode Q1 are connected to form the positive pole of constant-current circuit; The other end of resistance R 7 is connected with the base stage of triode Q1; The anode of diode D1 links to each other with the base stage of triode Q1; The negative electrode of diode D1 links to each other with the anode of diode D2, and the emitter of triode Q1 is connected with an end of resistance R 8, and the other end of the negative electrode of diode D2 and resistance R 8 is connected to form the negative pole of constant-current circuit.
Above-mentioned constant voltage circuit comprises resistance R 9, resistance R 10, resistance R 11, triode Q2; One end of resistance R 9 and an end of resistance R 11 are connected to form the positive pole of constant voltage circuit; The other end of resistance R 9 is connected with the base stage of triode Q2; The other end of resistance R 11 is connected with the collector of triode Q2, and an end of resistance R 10 is connected with the base stage of triode Q2, and the emitter of the other end of resistance R 10 and triode Q2 is connected to form the negative pole of constant-current circuit.
In order to reduce working current; Backlight LED is connected in the power circuit; Constant-current circuit guarantees the stability of backlight LED electric current, and backlight illumination can significant change not take place with the cell voltage fluctuation, because main control IC and the required electric current of peripheral circuit work are less than the electric current of backlight LED; In the parallel connection of the input end of three-terminal voltage-stabilizing circuit a constant voltage circuit shunt, and the electric current of whole power circuit is determined by constant-current circuit.
Like Fig. 6, Fig. 7, shown in Figure 8, be respectively the circuit diagram of main control IC, LCD display, EEPROM.Main control IC is MCU, and inside is integrated with resources such as LCD driving, 10 bit A/D converters, external interrupt mouth.Main control IC carries out the AD conversion with battery voltage signal, reversal signal and becomes digital signal, is used to monitor battery dump energy and charging and discharging currents; Hall signal is input to the external interrupt mouth of main control IC, is used for the demonstration of speed, mileage; Left and right sides turn signal is input to the input port of main control IC, when level is high or low (according to the parameter setting), shows a left side or right icon on the LCD display.Main control IC can write mileage among the EEPROM, and the assurance data can not lost.
Should be noted that at last; Above content is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain; The simple modification that those of ordinary skill in the art carries out the technical scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technical scheme.
Claims (8)
1. electric bicycle instrument; It is characterized in that: said electric bicycle instrument comprises LCD display, the main control IC that is used to show real time execution information, input interface circuit, the output interface circuit that is used for the output speed feedback signal, EEPROM and the power circuit that receives the operate outside status signal; Said LCD display, said input interface circuit, said output interface circuit, said EEPROM all are electrically connected with said main control IC, and said power circuit is electrically connected with said main control IC.
2. according to the described electric bicycle instrument of claim 1; It is characterized in that: also comprise write device and parameter edit manager; Said EEPROM has input port; Said parameter edit manager is electrically connected with the input end of said write device through data line, and the output terminal of said write device is electrically connected with the input port of said EEPROM through data line.
3. according to claim 1 or 2 described electric bicycle instrument, it is characterized in that: 3 serial line interfaces of said EEPROM are connected with main control IC through resistance R 19, resistance R 20, resistance R 21 respectively.
4. according to the described electric bicycle instrument of claim 1; It is characterized in that: said operate outside status signal comprises left rotaring signal, right turn signal, positive current signal, negative current signal and hall signal, and said left rotaring signal, said right turn signal, said positive current signal, said negative current signal and said hall signal are handled through flowing to said main control IC after dividing potential drop, the RC filtering in said input interface circuit.
5. according to the described electric bicycle instrument of claim 4, it is characterized in that: the indication of level Four electric weight, the digital running time that the display panel of said LCD display has that imitative clock-type reometer shows, digital speed shows, digital mileage shows, show with bar blocks show and about turn to indication.Total kilometrage and current mileage Alternation Display.
6. according to the described electric bicycle instrument of claim 1; It is characterized in that: said power circuit comprises current-limiting resistance, backlight LED, constant-current circuit, constant voltage circuit, three-terminal voltage-stabilizing circuit and the power output end of power input, 4 parallel connections; The positive pole of the current-limiting resistance of said power input, described 4 parallel connections, said backlight LED, said constant-current circuit is connected in series successively; The negative pole of said constant-current circuit is connected with the positive pole of said constant voltage circuit, the positive pole of said three-terminal voltage-stabilizing circuit respectively; The negative pole of said constant voltage circuit is connected with the positive pole of said three-terminal voltage-stabilizing circuit through electric capacity E1, and the negative pole of said three-terminal voltage-stabilizing circuit is connected with said power output end.
7. according to the described electric bicycle instrument of claim 6; It is characterized in that: said constant-current circuit comprises resistance R 7, resistance R 8, diode D1, diode D2 and triode Q1; One end of said resistance R 7 and the collector of triode Q1 are connected to form the positive pole of constant-current circuit; The other end of said resistance R 7 is connected with the base stage of said triode Q1; The anode of said diode D1 links to each other with the base stage of said triode Q1; The negative electrode of said diode D1 links to each other with the anode of said diode D2, and the emitter of said triode Q1 is connected with an end of said resistance R 8, and the other end of the negative electrode of said diode D2 and said resistance R 8 is connected to form the negative pole of constant-current circuit.
8. according to the described electric bicycle instrument of claim 6; It is characterized in that: said constant voltage circuit comprises resistance R 9, resistance R 10, resistance R 11, triode Q2; One end of said resistance R 9 and an end of said resistance R 11 are connected to form the positive pole of constant voltage circuit; The other end of said resistance R 9 is connected with the base stage of said triode Q2; The other end of said resistance R 11 is connected with the collector of said triode Q2, and an end of said resistance R 10 is connected with the base stage of said triode Q2, and the emitter of the other end of said resistance R 10 and said triode Q2 is connected to form the negative pole of constant-current circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202320896U CN202119455U (en) | 2011-07-04 | 2011-07-04 | Electric bicycle instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202320896U CN202119455U (en) | 2011-07-04 | 2011-07-04 | Electric bicycle instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119455U true CN202119455U (en) | 2012-01-18 |
Family
ID=45460512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202320896U Expired - Fee Related CN202119455U (en) | 2011-07-04 | 2011-07-04 | Electric bicycle instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627017A (en) * | 2015-01-07 | 2015-05-20 | 天津市爱博电动车制造有限公司 | Control device of electric vehicle |
| CN105774553A (en) * | 2014-12-22 | 2016-07-20 | 彭国智 | Electric bicycle instrument, controller and electric bicycle having touch control function |
-
2011
- 2011-07-04 CN CN2011202320896U patent/CN202119455U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774553A (en) * | 2014-12-22 | 2016-07-20 | 彭国智 | Electric bicycle instrument, controller and electric bicycle having touch control function |
| CN104627017A (en) * | 2015-01-07 | 2015-05-20 | 天津市爱博电动车制造有限公司 | Control device of electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20130704 |