CN104917268A - Intelligent charging device - Google Patents
Intelligent charging device Download PDFInfo
- Publication number
- CN104917268A CN104917268A CN201510316341.4A CN201510316341A CN104917268A CN 104917268 A CN104917268 A CN 104917268A CN 201510316341 A CN201510316341 A CN 201510316341A CN 104917268 A CN104917268 A CN 104917268A
- Authority
- CN
- China
- Prior art keywords
- pin
- chip microcomputer
- circuit
- resistance
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an intelligent charging device. The intelligent charging device is connected with mains supply; an AC/DC converter is arranged at the access port of the mains supply; the AC/DC converter is connected with a high frequency voltage regulator; the high frequency voltage regulator is connected with a rectifier filter; the rectifier filter is connected with a constant current charging circuit and a constant voltage charging circuit respectively; the constant current charging circuit and the constant voltage charging circuit are both connected with a storage battery; a sampling circuit is arranged on the storage battery; the sampling circuit is connected with a single chip microcomputer circuit; the single chip microcomputer circuit is connected with a display device, a keyboard, a temperature sensor and a PWM (Pulse-Width Modulation) control circuit respectively; and the PWM control circuit is connected with the high frequency voltage regulator. According to the intelligent charging device provided by the invention, automatic conversion of constant current charging and constant voltage charging in the charging process can be realized, so that the charging process of an electric bicycle becomes more intelligent and reasonable, and the charging time can be effectively shortened, and the service life of the storage battery is prolonged.
Description
Technical field
The present invention relates to a kind of electrically-charging equipment relevant to electric power electric, be specifically related to a kind of intelligent charger.
Background technology
Along with the aggravation of environmental pollution and energy crisis; countries in the world start popularization electric bicycle energetically and electric automobile; electric bicycle is widely used with the advantage of its uniqueness; but electric bicycle also exposes shortcoming gradually in its process used, the lead acid accumulator being exactly electric bicycle outfit is general shorter for useful life.One of them major reason is exactly in the charging process of storage battery, and easily cause storage battery underfill electricity because charging method is improper or charge excessive, this has very large infringement to the useful life of storage battery.Simultaneously along with the development of power electronic technology, the reduction of chip volume miniaturization and price thereof, intelligent charger large-scale production becomes possibility, and intelligent charger has simple to operate, the feature such as reliability and highly versatile, being an important component part of charging family, is also the main development direction of following charger.Therefore having good realistic meaning and market prospects to the research of intelligent charger, is also an important component part of new cleaning fuel.
Summary of the invention
For prior art above shortcomings, the present invention proposes a kind of intelligent charger, it is connected with civil power, AC/DC transducer is provided with at the access port position of described civil power, described AC/DC transducer is connected with high frequency voltage regulator, high frequency voltage regulator is connected with rectifier filter, rectifier filter is connected to constant-current charging circuit and constant voltage charging circuit respectively, described constant-current charging circuit is all connected with storage battery with constant voltage charging circuit, storage battery is provided with sample circuit, described sample circuit connects with single chip circuit, described single chip circuit is connected to display respectively, keyboard, temperature sensor and pwm control circuit, described pwm control circuit is connected with high frequency voltage regulator, intelligent charger provided by the invention, can realize the constant current charge of charging process and constant voltage charge and automatic conversion, the chargers of electric bicycle is made to become more intelligent and reasonable, effectively can shorten the time of charging and extend the useful life of storage battery.
The present invention solves its technical problem, the technical scheme adopted is: a kind of intelligent charger, it is connected with civil power, AC/DC transducer is provided with at the access port position of described civil power, its design feature is: described AC/DC transducer is connected with high frequency voltage regulator, high frequency voltage regulator is connected with rectifier filter, rectifier filter is connected to constant-current charging circuit and constant voltage charging circuit, described constant-current charging circuit is connected in parallel with constant voltage charging circuit and is all connected with storage battery, storage battery is provided with sample circuit, described sample circuit connects with single-chip microcomputer, described single-chip microcomputer is also connected to display respectively, keyboard, temperature sensor and pwm control circuit, described pwm control circuit is connected with high frequency voltage regulator, described constant-current charging circuit is connected by Single-chip Controlling with constant voltage charging circuit.
Further, described constant-current charging circuit and constant voltage charging circuit are all be connected on described single-chip microcomputer, 1 pin of described single-chip microcomputer, 7 pin and the mutual short circuit of 8 pin, 7 pin of described single-chip microcomputer are connected with 6 pin VCC of single-chip microcomputer through resistance R1, 5 pin of described single-chip microcomputer are through resistance R3 ground connection, diode is connected with between 2 pin of described single-chip microcomputer and 4 pin, 3 pin of described single-chip microcomputer are connected by filter capacitor U2 with 4 pin, inductance L 1 and electric capacity U3 is connected with at described diode two ends, be connected with the collector electrode of triode T1 between described inductance L 1 and electric capacity U3, resistance R2 is connected with between triode T1 collector electrode and base stage, base stage and emitter are connected with resistance R4, and emitter is connected with 5 pin of single-chip microcomputer simultaneously, resistance R2 is connected with resistance R4 and exports, filter capacitor U4 was connected with before output.
Preferably, described single-chip microcomputer is single-chip microcomputer MC34063.
Further, a voltage follower is provided with in sample circuit, 2 pin of described voltage follower are connected with input by resistance R1,1 pin of described voltage follower is connected with 6 pin of described voltage follower by resistance R3 and 6 pin ground connection, and 2 pin of described voltage follower are also connected with 3 pin of voltage follower by resistance R2, in 3 pin output samplings of described voltage follower.
Preferably, described voltage follower is LM358D voltage follower.
Further, also a single-chip microcomputer is provided with in described pwm control circuit, 7 pin of described single-chip microcomputer are by resistance Rcs, be connected after 8 pin are connected with inductance L 1 by resistance R3 and with 1 pin of described single-chip microcomputer, 2 pin of described single-chip microcomputer and the direct ground connection of 4 pin, 3 pin of described single-chip microcomputer are by electric capacity Ct ground connection, inductance L 1 is also directly connected with 6 pin of described single-chip microcomputer and passes through electric capacity C1 ground connection, 5 pin of described single-chip microcomputer also and between 1 pin of described single-chip microcomputer are in series with resistance R2 and diode VD by resistance R1 ground connection, output is connect by electric capacity C0 ground connection and by inductance L 2 between resistance R2 and diode VD, be connected with filter capacitor C2 ground connection between outputs.
Preferably, described single-chip microcomputer is single-chip microcomputer MC34063.
Further, described high frequency voltage regulator is made up of switching tube chopper circuit and high frequency transforming circuit, is provided with triode, input power electric capacity and inductance in switching tube chopper circuit; Controlled thyristor and transformer is provided with in high frequency transforming circuit.
Preferably, described AC/DC transducer is a Switching Power Supply, and described Switching Power Supply adopts PWM mode.
Preferably, the AC-input voltage of described Switching Power Supply is 90 ~ 270V, and its output comprises main output loop and auxiliary output loop, and the output voltage of described main output loop is 12 ~ 60V, and output current is 1 ~ 3A; The output voltage of auxiliary output loop is+5V.
Above-mentioned intelligent charger, described temperature sensor adopts DS18B20, keyboard is 2 × 4 keyboards.
Above-mentioned intelligent charger, is connected with computer by serial ports RS232 in described single chip circuit.
Compared with prior art, the invention has the beneficial effects as follows: a kind of intelligent charger that the present invention proposes, it utilizes single-chip microcomputer to monitor charging voltage and charging current two parameters, realize the constant current charge of charging process and the automatic conversion of constant voltage charge, make the chargers of electric bicycle become more intelligent and reasonable, effectively can shorten the time of charging and extend the useful life of storage battery.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiment of the invention scheme is elaborated.
Fig. 1 is theory structure block diagram of the present invention.
Fig. 2 is the mechanical flow diagram of intelligent charger of the present invention.
Fig. 3 is the circuit structure diagram of constant-current charging circuit of the present invention and constant voltage charging circuit.
Fig. 4 is the circuit diagram of sample circuit of the present invention.
Fig. 5 is the circuit diagram of pwm control circuit of the present invention.
Fig. 6 is the inner workings figure of high frequency voltage regulator of the present invention.。
Specific embodiments
Below in conjunction with Figure of description and embodiment, specific embodiments of the invention are described in further detail:
As shown in Figure 1, a kind of intelligent charger, it is connected with civil power, AC/DC transducer is provided with at the access port position of described civil power, described AC/DC transducer is connected with high frequency voltage regulator, high frequency voltage regulator is connected with rectifier filter, rectifier filter is connected to constant-current charging circuit and constant voltage charging circuit, described constant-current charging circuit is connected in parallel with constant voltage charging circuit and is all connected with storage battery, storage battery is connected with sample circuit, described sample circuit connects with single-chip microcomputer, described single-chip microcomputer is connected to display, keyboard, temperature sensor and pwm control circuit, described pwm control circuit is connected with high frequency voltage regulator, and described constant-current charging circuit is connected by Single-chip Controlling with constant voltage charging circuit.
As shown in Figure 3 be constant-current charging circuit and constant voltage charging circuit, described constant-current charging circuit and constant voltage charging circuit are all be connected on described single-chip microcomputer, 1 pin of described single-chip microcomputer, 7 pin and the mutual short circuit of 8 pin, 7 pin of described single-chip microcomputer are connected with 6 pin VCC of single-chip microcomputer through resistance R1, 5 pin of described single-chip microcomputer are through resistance R3 ground connection, diode is connected with between 2 pin of described single-chip microcomputer and 4 pin, 3 pin of described single-chip microcomputer are connected by filter capacitor U2 with 4 pin, inductance L 1 and electric capacity U3 is connected with at described diode two ends, be connected with the collector electrode of triode T1 between described inductance L 1 and electric capacity U3, resistance R2 is connected with between triode T1 collector electrode and base stage, base stage and emitter are connected with resistance R4, and emitter is connected with 5 pin of single-chip microcomputer simultaneously, resistance R2 is connected with resistance R4 and exports, filter capacitor U4 was connected with before output.。
Sample circuit as shown in Figure 4, a voltage follower is provided with in sample circuit, described voltage follower is LM358D voltage follower, 2 pin of described voltage follower are connected with input by resistance R1,1 pin of described voltage follower is connected with 6 pin of described voltage follower by resistance R3 and 6 pin ground connection, and 2 pin of described voltage follower are also connected with 3 pin of voltage follower by resistance R2, in 3 pin output samplings of described voltage follower.
As shown in Figure 5 be pwm control circuit, also a single-chip microcomputer is provided with in described pwm control circuit, described single-chip microcomputer is MC34063 single-chip microcomputer, 7 pin of described single-chip microcomputer are by resistance Rcs, be connected after 8 pin are connected with inductance L 1 by resistance R3 and with 1 pin of described single-chip microcomputer, 2 pin of described single-chip microcomputer and the direct ground connection of 4 pin, 3 pin of described single-chip microcomputer are by electric capacity Ct ground connection, inductance L 1 is also directly connected with 6 pin of described single-chip microcomputer and passes through electric capacity C1 ground connection, 5 pin of described single-chip microcomputer also and between 1 pin of described single-chip microcomputer are in series with resistance R2 and diode VD by resistance R1 ground connection, output is connect by electric capacity C0 ground connection and by inductance L 2 between resistance R2 and diode VD, be connected with filter capacitor C2 ground connection between outputs.
Because constant current charge method keeps the constant charging method of strength of charging current, control method is simple, but due to the accepted current capacity of battery be decline gradually along with the carrying out of charging process, to the charging later stage, charging current is used for brine electrolysis, and produce gas more, pressure is larger, and the voltage of the charge power supply of constant voltage charge method keeps constant numerical value in whole charging interval, along with the rising gradually of accumulator voltage, electric current reduces gradually, compared with constant current charge method, its charging process is closer to optimal charge curve, and in the present embodiment, single-chip microcomputer can be utilized to monitor charging voltage and charging current two parameters by the control of single-chip microcomputer, when sample circuit detects the set point that charging voltage and charging circuit reach certain time, single-chip microcomputer will respond, constant-current circuit and constant voltage circuit are all connected on single-chip microcomputer MC34063, and share most components and parts, the constant current charge realizing charging process that can be more prone to like this and constant voltage charge and automatic conversion, and this invention make use of being combined of power electronic technology and microcomputer technology, primarily of AC/DC transducer, sample circuit, microprocessor, pulse width modulator, keyboard, display and temperature sensor composition, it is the Intelligent charging system of a closed loop, such system makes the chargers of electric bicycle become more intelligent, rationalize, the energy consumed when effectively can save time and the charging of charging.
It should be noted that, as shown in Figure 6, high frequency voltage regulator is made up of switching tube chopper circuit and high frequency transforming circuit, and switching tube chopper circuit is as shown in the left side square frame of Fig. 6, primarily of triode and input power electric capacity and inductance composition, can to its direct voltage of adjustment, high frequency transforming circuit is as shown in the right frame of Fig. 6, it is primarily of controlled thyristor and transformer composition, the position accessed at civil power is exactly a Switching Power Supply, and Switching Power Supply adopts PWM mode, its whole course of work is through filtering by interchange input, high direct voltage is become after the rectification of AC/DC transducer, again by switching tube copped wave, high frequency rectangular voltage is obtained after the step-down of high frequency transforming circuit, eventually pass the VD required for output rectification filter acquisition, the requirement of system to Switching Power Supply is its AC-input voltage scope is 90 ~ 270V, the voltage of+5V (as control section power supply) and 12 ~ 60V (major loop) can be exported simultaneously, output current is 1 ~ 3A.
In addition, described temperature sensor adopts DS18B20 temperature sensor, keyboard is 2 × 4 keyboards, display can be used for showing the temperature of battery tension that single-chip microcomputer real time sample arrives, charging current, charging interval and storage battery, and keyboard is then for setting charging voltage (charging limit voltage), constant current charge electric current (limit charging current) and charging interval.Single-chip microcomputer in circuit is connected with computer by serial ports RS232, and for the setting storing data and virtual display charge parameter, when detecting that charging current is zero, single-chip microcomputer proceeds to resting state.And when detecting that charging current is non-vanishing, single-chip microcomputer is activated.
Described on base, be the mechanical flow diagram of charger for electric bicycle Intelligent charger for electric bicycle of the present invention as shown in Figure 2.Single-chip microcomputer is whether shown electric bike battery connects what first check after an AC/DC transducer conversion, if do not connected, so amber light bright and turn back to AC/DC (digital-to-analogue) conversion, detect after connecting, enter into the flow process of next current sampling immediately, the electric current of sampling is measured, first its voltage is compared, AC/DC (digital-to-analogue) conversion is turned back to by pulse reparation when voltage is too small time, what enter the next item down immediately is the too small detection of electric current, when detect too small after amber light bright and return AC/DC (digital-to-analogue) conversion, just see whether electric current is less than normal charging current after measure voltage & current is complete, if be less than normal charging current, then green light (display is charged), it is just then detected whether within normal chargeable range when being not less than normal charging current, what within normal chargeable range, adopt constant voltage charging circuit also to show is green light (underfill), namely charge, and not within normal chargeable range in will adopt constant-current charging circuit be also display green light (underfill) and feed back to AC/DC conversion.
The above, it is only preferred embodiment of the present invention, not any restriction is made to technical scope of the present invention, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical scheme of the present invention.
Claims (8)
1. an intelligent charger, it is connected with civil power, AC/DC transducer is provided with at the access port position of described civil power, it is characterized in that: described AC/DC transducer is connected with high frequency voltage regulator, described high frequency voltage regulator is connected with rectifier filter, described rectifier filter is connected to constant-current charging circuit and constant voltage charging circuit, described constant-current charging circuit is connected in parallel with constant voltage charging circuit and is all connected with storage battery, storage battery is connected with sample circuit, described sample circuit connects with single-chip microcomputer, described single-chip microcomputer is connected to display, keyboard, temperature sensor and pwm control circuit, described pwm control circuit is connected with high frequency voltage regulator, described constant-current charging circuit is connected by Single-chip Controlling with constant voltage charging circuit, described constant-current charging circuit and constant voltage charging circuit are all be connected on described single-chip microcomputer, 1 pin of described single-chip microcomputer, 7 pin and the mutual short circuit of 8 pin, 7 pin of described single-chip microcomputer are connected with 6 pin VCC of single-chip microcomputer through resistance R1, 5 pin of described single-chip microcomputer are through resistance R3 ground connection, diode is connected with between 2 pin of described single-chip microcomputer and 4 pin, 3 pin of described single-chip microcomputer are connected by filter capacitor U2 with 4 pin, inductance L 1 and electric capacity U3 is connected with at described diode two ends, be connected with the collector electrode of triode T1 between described inductance L 1 and electric capacity U3, resistance R2 is connected with between triode T1 collector electrode and base stage, base stage and emitter are connected with resistance R4, and emitter is connected with 5 pin of single-chip microcomputer simultaneously, resistance R2 is connected with resistance R4 and exports, filter capacitor U4 was connected with before output.
2. a kind of intelligent charger according to claim 1, is characterized in that: described single-chip microcomputer is single-chip microcomputer MC34063.
3. a kind of intelligent charger according to claim 1, it is characterized in that: in sample circuit, be provided with a voltage follower, 2 pin of described voltage follower are connected with input by resistance R1,1 pin of described voltage follower is connected with 6 pin of described voltage follower by resistance R3 and 6 pin ground connection, and 2 pin of described voltage follower are also connected with 3 pin of voltage follower by resistance R2, in 3 pin output samplings of described voltage follower.
4. a kind of intelligent charger according to claim 3, is characterized in that: described voltage follower is LM358D voltage follower.
5. a kind of intelligent charger according to claim 1, it is characterized in that: in described pwm control circuit, be also provided with a single-chip microcomputer, 7 pin of described single-chip microcomputer are by resistance Rcs, be connected after 8 pin are connected with inductance L 1 by resistance R3 and with 1 pin of described single-chip microcomputer, 2 pin of described single-chip microcomputer and the direct ground connection of 4 pin, 3 pin of described single-chip microcomputer are by electric capacity Ct ground connection, inductance L 1 is also directly connected with 6 pin of described single-chip microcomputer and passes through electric capacity C1 ground connection, 5 pin of described single-chip microcomputer also and between 1 pin of described single-chip microcomputer are in series with resistance R2 and diode VD by resistance R1 ground connection, output is connect by electric capacity C0 ground connection and by inductance L 2 between resistance R2 and diode VD, be connected with filter capacitor C2 ground connection between outputs.
6. a kind of intelligent charger according to claim 5, is characterized in that: described single-chip microcomputer is single-chip microcomputer MC34063.
7. a kind of intelligent charger according to claim 1, is characterized in that: described high frequency voltage regulator is made up of switching tube chopper circuit and high frequency transforming circuit, is provided with triode, input power electric capacity and inductance in switching tube chopper circuit; Controlled thyristor and transformer is provided with in high frequency transforming circuit.
8. a kind of intelligent charger according to claim 1, it is characterized in that: described AC/DC transducer is a Switching Power Supply, described Switching Power Supply adopts PWM mode, the AC-input voltage of described Switching Power Supply is 90 ~ 270V, its output comprises main output loop and auxiliary output loop, the output voltage of described main output loop is 12 ~ 60V, and output current is 1 ~ 3A; The output voltage of auxiliary output loop is+5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316341.4A CN104917268A (en) | 2015-06-10 | 2015-06-10 | Intelligent charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510316341.4A CN104917268A (en) | 2015-06-10 | 2015-06-10 | Intelligent charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104917268A true CN104917268A (en) | 2015-09-16 |
Family
ID=54086084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510316341.4A Pending CN104917268A (en) | 2015-06-10 | 2015-06-10 | Intelligent charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104917268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910036A (en) * | 2021-01-21 | 2021-06-04 | 重庆新源创实业有限公司 | Charging control method, device and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000278874A (en) * | 1999-03-24 | 2000-10-06 | Matsushita Electric Ind Co Ltd | Charging of storage battery |
| CN103490114A (en) * | 2013-05-22 | 2014-01-01 | 厦门宇虹达光电科技有限公司 | Storage battery charging regenerator |
-
2015
- 2015-06-10 CN CN201510316341.4A patent/CN104917268A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000278874A (en) * | 1999-03-24 | 2000-10-06 | Matsushita Electric Ind Co Ltd | Charging of storage battery |
| CN103490114A (en) * | 2013-05-22 | 2014-01-01 | 厦门宇虹达光电科技有限公司 | Storage battery charging regenerator |
Non-Patent Citations (2)
| Title |
|---|
| 林善和: "低成本DC/DC转换器34063的应用", 《今日电子》 * |
| 赫广才: "基于单片机控制的电动车充电器研究", 《科技致富向导》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910036A (en) * | 2021-01-21 | 2021-06-04 | 重庆新源创实业有限公司 | Charging control method, device and system |
| CN112910036B (en) * | 2021-01-21 | 2022-08-09 | 重庆新源创实业有限公司 | Charging control method, device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101854071B (en) | Intelligent multi-stage constant current charger | |
| CN103378636A (en) | Mobile power source control chip and mobile power source with same | |
| CN202134942U (en) | Wind-light complementary energy storage power supply control system | |
| CN106849322A (en) | A kind of standby energy-storage system of intelligent domestic | |
| CN206180632U (en) | Battery charging device | |
| CN209675988U (en) | A kind of storage battery charge-discharge control system based on DSP | |
| CN201750187U (en) | Solar energy charging device | |
| CN106505659B (en) | The design method of the cell activation control circuit of uninterrupted DC power supply | |
| CN207200316U (en) | Indoor service humanoid robot power supply circuit | |
| CN203039400U (en) | Novel quick charging multipurpose mobile power supply | |
| CN204794299U (en) | Intelligent charger | |
| CN201947020U (en) | Solar charging conversion module with light intensity self-adjusting function | |
| CN105739591A (en) | Light beacon integrated power regulation device and system based on direct-current power supply | |
| CN209614522U (en) | A kind of control of collection lead acid battery charge and arc-welding machine welding are controlled in integrated control circuit | |
| CN201846118U (en) | Intelligent multi-section constant current charger | |
| CN104656034A (en) | DC electronic load | |
| CN104917268A (en) | Intelligent charging device | |
| CN203481901U (en) | Zero-load low-loss battery charging circuit | |
| CN107149250A (en) | A kind of photovoltaic charged cell-phone cover | |
| CN202651811U (en) | Environmental-protection micro electric energy collection converter | |
| CN206254814U (en) | SCM Based batteries of electric automobile intelligent charging system | |
| CN202444670U (en) | Portable intelligent LED (Light Emitting Diode) lighting device | |
| CN202149911U (en) | Power supply circuit of external battery for intelligent three-phase charge control electric meter | |
| CN104485716A (en) | Solar electrical bicycle charging device additionally installed on parking shed | |
| CN205335960U (en) | High -power electrical power generating system of transition electromagnetic surveying |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |