CN1135673A - Intelligent charing machine for fully-automatically charging nickel-cadmium cell and nickel-hydrogen cell - Google Patents
Intelligent charing machine for fully-automatically charging nickel-cadmium cell and nickel-hydrogen cell Download PDFInfo
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- CN1135673A CN1135673A CN 94111648 CN94111648A CN1135673A CN 1135673 A CN1135673 A CN 1135673A CN 94111648 CN94111648 CN 94111648 CN 94111648 A CN94111648 A CN 94111648A CN 1135673 A CN1135673 A CN 1135673A
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Abstract
The intelligent fully automatic-charging machine for charging nickle-cadmium cell and nickel-hydrogen cell comprises six unit circuits of power supply, charging, monitoring and central control, charging and discharging, displaying and induction. It uses the microprocessor with A/D conversion function as control centre, and monitors the temp. and voltage of the charged cell, and automatically selects an optimum mode from nine charging modes to charge, so that it can prevent high-temp. charging and overloading charging, can prevent cell from ageing and can prolong the service life of the cell. The complete charging process can be observed by means of display device, the cell quality (ageing extent) also can be understood according to the display.
Description
The present invention relates to a kind of full-automatic charging device.Especially a kind of full-automatic device to NI-G and Ni-MH battery charging.
Charger in the market just has simple regulator rectifier circuit.More advanced again also just charge in the mode of decide electric current, shortage is recharged the quality demonstration in pond, the i.e. demonstration of degree of aging.The consumer can only determine the quality of chargeable battery simply to record cell voltage.Tend to like this make the consumer make erroneous judgement, cause waste.
The energy and the relation between the voltage of rechargeable battery are non-linear, do not have certain ratio.Its curve can be along with the temperature of battery and electric current and is changed.Main is this curve can be along with the degree of aging of battery, and presents the shortening of equal proportion.So the efficient of battery charge is relevant with the temperature of battery itself, battery temperature is high more, and charge efficiency is poor more, and battery is also easy more aging.When particularly battery charge had reached capacity degree, the temperature heating of can rising if continue charging again, will produce a large amount of oxygen, causes the loss of electrolyte, thereby battery capacity is reduced.
The objective of the invention is to provides a kind of battery in charging process to the public, and its temperature, voltage and current are monitored automatically, can select the optimal charge pattern automatically, can prevent to transship the intelligent automatic device for charging of charging.
The technical solution used in the present invention is:
Circuitry is divided into (1) power supply; (2) charging; (3) monitoring and center control; (4) discharge and recharge; (5) show; (6) six element circuits of induction constitute.Power subsystem is made of IC regulator block and auxiliary circuit; Charhing unit is made of current stabilization IC piece and auxiliary circuit, two two-level operating amplifiers and charging control circuit; The monitoring with control unit mainly by a monocrystalline microprocessor, A/D converter, observation circuit and auxiliary circuit structure or; Charge/discharge unit is made of charge-discharge control circuit and a resistance that is parallel on the battery; Display unit is made of LED seven-segment display and four dual-colored LED pipes; Sensing unit is made of a thermistor that is parallel on the battery.
Power supply provides working power after the voltage stabilizing of voltage stabilizing IC piece to each working point of complete machine; The charging instruction of one of nine kinds of charge modes that the charhing unit execution is sent by centralized control unit; Microprocessor is the centralized control unit core, and it is set the maximum charge time respectively by A/D converter, and the temperature and the voltage of battery are monitored, and coordinates the work between each unit and each working point, carries out smoothly to guarantee whole charging procedure; Charge/discharge unit is by the parallel resistance auto charge and discharge on its control circuit and the battery; Display unit is accepted the master controller instruction, and finishes the demonstration of charger operating state and battery quality by dual-colored LED and seven-segment display; Sensing unit is by thermistor the temperature of battery to be responded to, and send centralized control unit with its influence value.
The invention has the advantages that: 1. since circuit of the present invention by six ingenious combinations of element circuit, its structural design has distinctive feature, shares out the work and help one another between each unit, thereby has guaranteed finishing of goal of the invention effectively; 2. the present invention has produced nine kinds of different charge modes according to three kinds of different battery temperature districts with three kinds of different cell voltages, and the example table is as accompanying drawing 3.Like this, not only select the optimal charge pattern automatically, also prevented the overload charging effectively; 3. because the method for a design LED seven-segment display demonstration, by " energy content of battery=(charging interval/the standard charging time) * 10 " formula, if what show is 7, promptly tell the energy of this battery of user to also have 70%, existing 30% is aging, like this user can know this battery very intuitively quality how.If the energy content of battery is 100%, seven-segment display is " F ", the meaning of promptly English FULL (expiring); 4. utilize microprocessor to pass through the A/D change over switch, to information (first group of AIN of three groups of operating states
0Be used for setting the maximum charge time, only need to use non-essential resistance R
1And R
2Ratio can from accompanying drawing 4, find out the charging interval.Second group of AIN
1Variation to charging interval and cell voltage is monitored.The 3rd group of AIN
2Battery temperature is monitored) monitor and control, thus guaranteed that highly reliably charger successfully carries out by charging procedure; 5. the present invention also is provided with SW in Unit second
1Button switch can discharge manually to battery, manual like this and automatic combination, thus discharge and recharge work more effectively.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 2 is an embodiment of the invention circuit diagram.
Fig. 3 is a procedure flow chart of the present invention.
Operation principle of the present invention is asked for an interview the embodiment circuit diagram of accompanying drawing 2.Unit 1 provides+and the 5V voltage-stabilizing working power supply is to each working points of master controller and other unit; Unit (2) is a charging control circuit, carries out the timing charging by current stabilization IC piece when charging, also can accept the instruction of master controller, and battery is filled entirely, partly fills and trickle charge work; Unit (3) is the centralized control unit that is made of a microprocessor and auxiliary circuit, it is responsible for monitoring whether battery is arranged in the charger, and charging procedure, when charging, be responsible for the setting of maximum charge time again, whether voltage, temperature, electric current and the battery of monitoring battery be sufficient, and with the direct information display unit (5) of the operating state in charging interval, when unit (3) monitor the DCHG-SW signal, can be by manually pressing the SW of unit (2)
1Knob carries out manual discharge control; And charge/discharge unit (4) is accepted the control information of unit (3) and is discharged and recharged, and is auto charge and discharge control, if unit (3) send is the DCHG/ECHG signal, this circuit will make the resistance that is parallel on the battery pack do discharge work; Unit (5) is a display unit, the degree of aging that LED seven-segment display is informed battery how, four dual-colored LED are informed the operating state of charging; Unit (6) is a thermistor inductor, is parallel on the rechargeable battery.
Charging working procedure of the present invention please refer to accompanying drawing 3.
Claims (3)
1. intelligent charging machine that NI-G and Ni-MH battery are automatically charged, by power supply, charging, monitoring and center control, discharge and recharge, display and six element circuits of induction constitute, and it is characterized in that power subsystem is made of IC regulator block and auxiliary circuit; Charhing unit mainly is made of current stabilization IC piece and auxiliary circuit, two secondary computing amplifications and charging control circuit; Monitoring is made of microprocessor, three groups of A/D converter observation circuits and auxiliary circuit with centralized control unit; Charge/discharge unit is made of its control circuit and a resistance that is parallel on the battery; Display unit is made of seven-segment display and four dual-colored LED; Sensing unit is made of the thermistor that is parallel on the battery.
2. fully-automatic intelligent charger according to claim 1 is characterized in that power supply provides working power through the voltage stabilizing of voltage stabilizing IC piece to each working point; The charging instruction of one of nine kinds of charge modes that the charhing unit execution is sent by master controller; Monitoring is collected the information of various necessity with master controller by observation circuit, and sends the work order of various necessity, coordinates the work of each unit and each working point, guarantees that whole charging procedure finishes smoothly; Charge/discharge unit discharges automatically by the parallel resistance on its control circuit and the battery; Display unit is accepted the master controller instruction, by display and dual-colored LED the degree of aging of battery and the operating state of charging is shown; Sensing unit is responded to the temperature of battery by thermistor.
3. fully-automatic intelligent charger according to claim 1 and 2 is characterized in that unit (1) provides+the 5V voltage-stabilizing working power supply to each cell operation point; Unit (2) is accepted the master controller instruction battery is filled entirely, partly fills and trickle charge work; To whether battery, charging procedure, cell voltage, temperature, electric current are arranged in the complete machine monitor unit (3), is responsible for the setting of maximum charge time and the direct information display unit of various operating states.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111648 CN1135673A (en) | 1993-06-10 | 1994-02-19 | Intelligent charing machine for fully-automatically charging nickel-cadmium cell and nickel-hydrogen cell |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93238843 | 1993-06-10 | ||
| CN93238843.4 | 1993-06-10 | ||
| CN 94111648 CN1135673A (en) | 1993-06-10 | 1994-02-19 | Intelligent charing machine for fully-automatically charging nickel-cadmium cell and nickel-hydrogen cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1135673A true CN1135673A (en) | 1996-11-13 |
Family
ID=25743331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111648 Withdrawn CN1135673A (en) | 1993-06-10 | 1994-02-19 | Intelligent charing machine for fully-automatically charging nickel-cadmium cell and nickel-hydrogen cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1135673A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914118A (en) * | 2012-12-28 | 2014-07-09 | 英特尔公司 | Battery charge management for electronic device |
-
1994
- 1994-02-19 CN CN 94111648 patent/CN1135673A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914118A (en) * | 2012-12-28 | 2014-07-09 | 英特尔公司 | Battery charge management for electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C03 | Withdrawal of patent application (patent law 1993) | ||
| WW01 | Invention patent application withdrawn after publication |