CN202503336U - High efficient automatic management module of backup battery of intelligent concentrator - Google Patents
High efficient automatic management module of backup battery of intelligent concentrator Download PDFInfo
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- CN202503336U CN202503336U CN2012200951573U CN201220095157U CN202503336U CN 202503336 U CN202503336 U CN 202503336U CN 2012200951573 U CN2012200951573 U CN 2012200951573U CN 201220095157 U CN201220095157 U CN 201220095157U CN 202503336 U CN202503336 U CN 202503336U
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Abstract
The utility model discloses a high efficiency automatic management module of a backup battery of an intelligent concentrator, comprising a power interface P1 of a power supply management module and a concentrator, a processor communication interface P0 of the power supply management module and the concentrator, a nickel-metal hydride rechargeable battery set BAT1, an integrated chip, a charging part and a discharging part; the first pin of a microprogrammed control unit (MCU) used for controlling the charging impulse duty cycle of the power supply is connected to the base of a transistor T2 through R12; the second pin of the MCU is connected to the base of the transistor T1 through a resistor R5 to control the power supplement of the system and awake the base of the transistor T1 to connect with the fourth pin of the communication interface P0 through a capacitor CP2; and the fifth pin of the MCU used for detecting the temperature of the battery is connected to the thermistor output end of the fourth pin of the charging battery. The high efficient automatic management module of the backup battery of the intelligent concentrator disclosed by the utility model can manage the power supply system of an intelligent concentrator, automatically manage power charge and discharge of nickel-metal hydride batteries and improve the reliability of the power supply system of the concentrator.
Description
Technical field
The utility model relates to a kind of battery management module, especially a kind of high efficiency automatic administration module of intelligent concentrator backup battery.
Background technology
In recent years; China's intelligent grid construction is already in full swing; Carrier wave, centralized automatic meter-reading technology such as wireless be large-scale application in China, and intelligent concentrator is the important link in the centralized automatic meter-reading technology, and is also increasingly high to its requirement; Concentrator need possess the reserve Ni-MH battery mostly at present, and after power failure, initiatively reports critical event through GPRS.
Concentrator does not in the market have special-purpose power management module, only uses hardware circuit to supply power as concentrator, and does not possess the controlled function of back-up source.For using the Ni-MH battery intelligent concentrator of power supply in support, there is not special-purpose battery charging module mostly, only use simple constant current charge, charge efficiency is low, the useful life of reduction battery; Do not possess the battery temperature measuring ability, the charging fail safe is low; The concentrator outage back operating time is short, and operation stability is poor.
Summary of the invention
The purpose of the utility model is to the high efficiency automatic administration module that a kind of intelligent concentrator backup battery is provided; It can manage the power-supply system of intelligent concentrator; And manage Ni-MH battery charging and discharge automatically, improve the reliability of intelligent concentrator power-supply system.
The purpose of the utility model realizes through following technical scheme:
A kind of high efficiency automatic administration module of intelligent concentrator backup battery; Include processor communication interface P0, nickel-hydrogen chargeable cell group BAT1, integrated chip, live part and the discharge portion of power interface P1, power management module and the concentrator of power management module and concentrator; Charge pulse duty cycle MCU the 1st pin of control power supply is connected with the base stage of T2 triode through R12; The 2nd pin of MCU is connected with the T1 transistor base through resistance R 5; The power supply of control system with wake the T1 transistor base up and be connected with the 4th pin of communication interface P0 through capacitor C P2, the 5th pin that detects the temperature MCU of battery is connected with the 4th pin thermistor output of rechargeable battery, and passes through pull down resistor R8 and be connected with ground; Detect 7V power supply that power interface provides whether the 6th pin of power down MCU be connected with R3 with R1; The 8th pin that sends order MCU to the concentrator processor is connected with the 1st pin of communication interface, and the indication charged state is connected with LED 1, and the 9th pin that receives the order MCU of concentrator is connected with the 2nd pin of communication interface; The 10th pin of MCU is connected with R16 with R14; The voltage R14 that detects battery is connected with the positive pole of battery through large power triode T0, and the positive pole of the rechargeable battery of control battery is connected with the collector electrode of triode T2 through resistance R 7, and the emitter of T2 is connected with the 1st pin of power interface; 1 pin of the discharge battery of control battery is connected with the emitter of large power triode T0, and the base stage of T0 is connected with the collector electrode of the utmost point pipe T1 of factory through resistance R P7.
The high efficiency automatic administration module of described a kind of intelligent concentrator backup battery, the 2nd pin of its described MCU are power supply control pins, and this pin connects a large power triode T0.
The high efficiency automatic administration module of described a kind of intelligent concentrator backup battery, the 5th, 6,10 pins of its described MCU are input pins of AD translation function.
The high efficiency automatic administration module of described a kind of intelligent concentrator backup battery, the 7th pin of its described MCU are that main power source wakes pin up when having a power failure.
The high efficiency automatic administration module of described a kind of intelligent concentrator backup battery, its described the 8th, 9 pins are MCU and concentrator processor communication pin.
The utility model is compared with prior art, has remarkable advantage: (1) has prolonged the power down operations time of concentrator, on average lengthens working hours 25%; (2) has the intelligent charge function; Precharge be provided, charge normal, three kinds of charge modes of trickle charge, battery be full of electricity back electric weight more sufficient (3) use pulse current charge, suppress inside battery and produce dendrite; Reduce the infringement that memory effect is brought battery, prolong battery useful life; (4) park mode of super low-power consumption uses the impact type button to wake 0 real power consumption up; (5) have arousal function, can wake concentrator up through button after the outage, carry out the copy reading data; (6) use highly sensitive-0 Δ V detection algorithm, prevent battery overcharge; (7) have the battery over-discharge protection function, effectively protect battery, prolong battery useful life; (8) support hot plug, do not use the power management module concentrator also can operate as normal.
As shown in Figure 1, after main power source was stopped power supply, the GPRS mode of passing through of concentrator was produced critical event is reported main website, reported to accomplish the back and send the order that has a power failure through the ARM2 interface to power management module, and power management module cuts off backup battery and supplies power.During main power source is stopped power supply, can wake power management module up through pushing button, use backup battery to be the power supply of concentrator processor, concentrator operate as normal; After concentrator is finished the work, send order through the ARM2 interface to power management module, power management module cuts off power supply, gets into power-down mode again.
When using back-up source to supply power as concentrator, MCU uses the AD function to gather the voltage of reserve battery in real time, if cell voltage is lower than the protection threshold voltage, MCU directly cuts off the reserve battery power supply.
The charging modes of battery is that pulsed is dashed; MCU use PWM mode is controlled the triode conducting and is ended; Battery charge during MCU output high level; Battery discharge during output low level, the duty through control PWM recently regulating cell discharge and recharge time scale, control precharge, quick charge, trickle charge three phases.
Charging is divided into precharge, quick charge, trickle charge three phases.When battery did not use for a long time, when battery electric quantity was lower than the precharge threshold voltage that is provided with in the program, MCU automatically performed the precharge program, and MCU uses less electric current that battery is carried out precharge through regulating PWM output; When battery electric quantity reached the quick charge requirement, MCU increased the defeated duty ratio of PWM, uses big electric current that battery is charged; After quick charge stopped, MCU regulated the PWM output duty cycle, uses little electric current that battery is carried out trickle charge.
Quick charge stops control method and uses highly sensitive-0 Δ V detection+temperature control algorithm; MCU reads the temperature of the voltage and the battery of battery respectively through the AD pin when quick charge; If cell voltage reduces or battery temperature surpasses safe temperature, stop quick charge immediately.
Description of drawings
Fig. 1 is the utility model and concentrator annexation block diagram;
Fig. 2 is the circuit diagram of an execution mode of the utility model.
Embodiment
Is that example further specifies below in conjunction with Fig. 2 to the utility model.
Among Fig. 2 P1 be power management module to the power interface of concentrator; P0 is the processor communication interface of power management module and concentrator; BAT1 is the nickel-hydrogen chargeable cell group; U2 is MCU, use be the integrated chip of RENESAS company; Live part and discharge portion are made up of triode and resistance.
The electrical equipment annexation of the utility model is following:
MCU the 1st pin is connected with the base stage of T2 triode through R12, is used to control the charge pulse duty cycle of power supply; The 2nd pin of MCU is connected with the T1 transistor base through resistance R 5, and the T1 transistor base passes through capacitor C P2 and is connected with the 4th pin of communication interface P0, is used for the power supply of control system and wakes up; The 5th pin of MCU is connected with the 4th pin thermistor output of rechargeable battery, and is connected with ground through pull down resistor R8, is used to detect the temperature of battery; The 6th pin of MCU is connected with R3 with R1, is used to detect the whether power down of 7V power supply that power interface provides; The 8th pin of MCU is connected with the 1st pin of communication interface, is used for sending order to the concentrator processor, and is connected with LED 1, is used to indicate charged state; The 9th pin of MCU is connected with the 2nd pin of communication interface, is used to receive the order of concentrator; The 10th pin of MCU is connected with R16 with R14, and R14 is connected with the positive pole of battery through large power triode T0, is used to detect the voltage of battery.The positive pole of battery is connected with the collector electrode of triode T2 through resistance R 7, and the emitter of T2 is connected with the 1st pin of power interface, is used to control the charging of battery; 1 pin of battery is connected with the emitter of large power triode T0, and the base stage of T0 is connected with the collector electrode of the utmost point pipe T1 of factory through resistance R P7, is used to control the discharge of battery.
The realization principle of the utility model is following:
MCU the 1st pin is controlled the T2 triode with the PWM mode, battery discharge when T2 ends, the battery charge during conducting of T2 triode; MCU sends pwm signal continuously; Battery charges with pulse mode, suppresses inside battery and produces dendrite, has reduced the infringement that memory effect is brought to battery.The 2nd pin of MCU is a power supply control pin, and this pin connects T0, and T0 is a large power triode, and MCU the 2nd pin is put high T0 conducting, and power management module can be exported the electric current of maximum 3A to concentrator; T0 ended when MCU the 2nd pin was low, and power management module stops to the concentrator output current.The 5th, 6,10 pins of MCU are input pins of AD translation function, detect respectively whether battery temperature, main power source stop power supply, cell voltage.The 7th pin of MCU is that main power source wakes pin up when having a power failure.8th, 9 pins are MCU and concentrator processor communication pin.
Because the processor power of concentrator is very big; After main power source was stopped power supply, the GPRS mode of passing through of concentrator reported main website, reported to accomplish the back and send to power management module through the ARM2 interface and order; MCU control T0 triode ends, and the processor of concentrator is cut off the electricity supply.In outage, concentrator work if desired can be through pushing button, and the conducting of capacitor C P2 charging control T1 triode is the MCU power supply, and the conducting of MCU control T0 triode is the power supply of concentrator processor, concentrator operate as normal; After concentrator is finished the work, send order to power management module, after MCU receives order, cut off the concentrator power supply, get into power-down mode again through the ARM2 interface.
When main power source restored electricity, MCU detected cell voltage automatically, if cell voltage less than the pre-charge voltage threshold values, MCU regulates PWM, makes battery get into pre-charge state, and detects cell voltages through pin 10 in real time; When cell voltage during greater than the precharge threshold values, MCU regulates PWM and increases charging current, gets into quick-charge state; Battery detects cell voltages through pin 10, if cell voltage greater than the pre-programmed maximum battery voltage, perhaps cell voltage reduces; Stop quick charge immediately; MCU detects battery temperature through pin 5, if temperature is higher than preset maximum temperature in the program, then stops charging immediately; After stopping charging, MCU controls PWM, gets into the trickle charge state, uses little electric current to battery charge.
The above is merely the exemplary embodiment of the utility model, all under the scope of the utility model, carry out be equal to replacement or improvement etc., all should be included within the protection range of the utility model.
Claims (5)
1. the high efficiency automatic administration module of an intelligent concentrator backup battery; Include processor communication interface P0, nickel-hydrogen chargeable cell group BAT1, integrated chip, live part and the discharge portion of power interface P1, power management module and the concentrator of power management module and concentrator; It is characterized in that; Charge pulse duty cycle MCU the 1st pin of control power supply is connected with the base stage of T2 triode through R12, and the 2nd pin of MCU passes through resistance R 5 and is connected with the T1 transistor base, the power supply of control system with wake the T1 transistor base up and be connected with the 4th pin of communication interface P0 through capacitor C P2; The 5th pin that detects the temperature MCU of battery is connected with the 4th pin thermistor output of rechargeable battery; And is connected with ground through pull down resistor R8, the 7V power supply that the detection power interface provides whether the 6th pin of power down MCU is connected with R3 with R1, orders the 8th pin of MCU to be connected with the 1st pin of communication interface to the transmission of concentrator processor; The indication charged state is connected with LED 1; The 9th pin that receives the order MCU of concentrator is connected with the 2nd pin of communication interface, and the 10th pin of MCU is connected with R16 with R14, and the voltage R14 that detects battery is connected with the positive pole of battery through large power triode T0; The positive pole of the rechargeable battery of control battery is connected with the collector electrode of triode T2 through resistance R 7; The emitter of T2 is connected with the 1st pin of power interface, and 1 pin of the discharge battery of control battery is connected with the emitter of large power triode T0, and the base stage of T0 is connected with the collector electrode of the utmost point pipe T1 of factory through resistance R P7.
2. the high efficiency automatic administration module of a kind of intelligent concentrator backup battery according to claim 1 is characterized in that, the 2nd pin of described MCU is a power supply control pin, and this pin connects a large power triode T0.
3. the high efficiency automatic administration module of a kind of intelligent concentrator backup battery according to claim 1 is characterized in that, the 5th, 6,10 pins of described MCU are input pins of AD translation function.
4. the high efficiency automatic administration module of a kind of intelligent concentrator backup battery according to claim 1 is characterized in that, the 7th pin of described MCU is that main power source wakes pin up when having a power failure.
5. the high efficiency automatic administration module of a kind of intelligent concentrator backup battery according to claim 1 is characterized in that, described the 8th, 9 pins are MCU and concentrator processor communication pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200951573U CN202503336U (en) | 2012-03-14 | 2012-03-14 | High efficient automatic management module of backup battery of intelligent concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200951573U CN202503336U (en) | 2012-03-14 | 2012-03-14 | High efficient automatic management module of backup battery of intelligent concentrator |
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| CN202503336U true CN202503336U (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200951573U Expired - Lifetime CN202503336U (en) | 2012-03-14 | 2012-03-14 | High efficient automatic management module of backup battery of intelligent concentrator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887972A (en) * | 2017-12-20 | 2018-04-06 | 宁波三星医疗电气股份有限公司 | The method of supplying power to and electric power system of a kind of power concentrator |
| CN112653231A (en) * | 2020-12-17 | 2021-04-13 | 南方电网电力科技股份有限公司 | Backup power supply device and method for power terminal |
-
2012
- 2012-03-14 CN CN2012200951573U patent/CN202503336U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887972A (en) * | 2017-12-20 | 2018-04-06 | 宁波三星医疗电气股份有限公司 | The method of supplying power to and electric power system of a kind of power concentrator |
| CN112653231A (en) * | 2020-12-17 | 2021-04-13 | 南方电网电力科技股份有限公司 | Backup power supply device and method for power terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENYANG DEBANG INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SHENYANG FASHION INDUSTRY CO., LTD. Effective date: 20140414 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140414 Address after: Hunnan New Network street Shenyang city Liaoning province 110179 No. 8-1 301 Patentee after: Shenyang Debang Instrument Co., Ltd. Address before: Xinluo Street Hunnan Development Zone in Shenyang City, Liaoning Province, No. 8 110179 Patentee before: Shenyang Fashion Enterprise Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180319 Address after: 110179 Shenyang City, Shenyang, Liaoning, China (Liaoning) free trade test zone, Shenyang section, No. 109-1 (No. 109-1), No. 246-337, room 246-337 Patentee after: Northern energy Limited by Share Ltd Address before: Hunnan New Network street Shenyang city Liaoning province 110179 No. 8-1 301 Patentee before: Shenyang Debang Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |