CN105305572A - Safe hot plugging type battery supply system - Google Patents
Safe hot plugging type battery supply system Download PDFInfo
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- CN105305572A CN105305572A CN201510885182.XA CN201510885182A CN105305572A CN 105305572 A CN105305572 A CN 105305572A CN 201510885182 A CN201510885182 A CN 201510885182A CN 105305572 A CN105305572 A CN 105305572A
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- battery
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- power supply
- management plate
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Abstract
The invention discloses a safe hot plugging type battery supply system, comprising a plurality of battery modules, a battery management plate, a switch power supply, communication interfaces and power supply interfaces. The battery modules are in connection with the battery management plate through connectors; the switch power supply charges for the battery modules through the battery management plate. Each battery module comprises a battery core set and a battery protection plate in series or parallel connection; the battery management plate is used for managing the charging and discharging of each battery module; when a plurality of sets of battery modules are connected to the battery management plate, only one set of battery modules are in a discharging state. The invention provides the topological structure of a multi-battery hot plugging type management system; only one set of battery modules are in a discharging state, and battery states are monitored in real time through the communication interfaces, thereby realizing automatic switching in case of emergencies.
Description
Technical field
The present invention relates to a kind of battery power supply system, be specially a kind of hot-swappable replacing battery, continuous safe battery power supply system.
Background technology
Safety and stability are the important attribute of medical instruments and equipment, and for the Medical Devices of being powered by independent current source (battery), the safety of battery management system and stability are key factors wherein.For the Medical Instruments needing continuously power supply, when battery electric quantity is limited, how to accomplish when not cutting off the electricity supply, by changing battery, to supply this technology with support equipment continuous print power supply significant.At present, most of Medical Instruments generally adopts mains-supplied, and power-supply system market being directed to mobile medical equipment is little, can support that the power-supply system of battery hot plug is then less.But along with the development of medical science technology, mobile medical instrument has wide market prospects, as organ transplant transport class medical instruments and equipment, then can safety and stability be that the development of power-supply system to mobile medical instrument that equipment is powered is significant for a long time.Present invention is directed at this, disclose a kind of topological structure and method of the battery power supply system for medical instruments and equipment, this system can manage multiple batteries simultaneously, supports battery hot plug, by constantly changing the mode of battery, ensures the lasting supply of system power supply.Internal system can Real-Time Monitoring battery status and working state of system by data communication bus, ensure that the real-time control of use equipment to battery power supply system.
Summary of the invention
Object of the present invention, for the deficiencies in the prior art, provides a kind of and supports battery pack hot plug, and can be the battery management system of instrument uninterrupted power supply when changing battery pack.
Concrete technical scheme of the present invention is as follows:
Hot swap type battery power supply system comprises some battery modules, battery management plate, Switching Power Supply and communication interface, power interface; Wherein communication interface comprises battery communication interface, peripheral device communication interface, and power interface comprises battery supply interface, external equipment power interface, Switching Power Supply interface; Battery module is connected with battery management plate through battery communication interface, battery supply interface by connector, and battery module can freely plug arbitrarily; Switching Power Supply is connected by Switching Power Supply interface with battery management plate, and Switching Power Supply is charging battery module by battery management plate;
Described battery module comprises battery core pack and the battery protecting plate of serial or parallel connection; Battery core pack and battery protecting plate are packaged in a housing, housing reserves power supply and communication interface, independent battery charging inlet, led battery capacity indication lamp and electricity quantity inquiring button; Described battery protecting plate is used for the information such as Real-Time Monitoring this battery module internal cell electricity, voltage, electric current, temperature, and and external communication, charge and discharge protecting is carried out to this battery simultaneously.
Described battery management plate receives electricity, electric current, voltage, the battery temperature that every Battery pack module is transmitted through battery communication interface (such as SMbus, IIC, serial communication etc.), and the charging of battery in each battery module, discharge condition, then these information are sent to external equipment by peripheral device communication interface, external equipment can carry out showing or alarm according to reception information.
Described battery management plate is for managing the discharge and recharge of each battery module; When there being many Battery packs module to be connected on battery management plate, only have a Battery pack module to be in discharge condition at every turn;
Further, described battery management intralamellar part is also provided with some quick voltage detection modules matched with battery module, can detect the output voltage of this battery module in real time whether within zone of reasonableness; When a Battery pack module is in discharge condition, if its pulled out away or electricity is too low time, battery module that battery management plate is switched to rapidly next group electricity abundance by battery handover module discharges, and prevents battery from crossing and puts;
Further, described battery management intralamellar part is also provided with charge buffer, to ensure the lasting supply of power supply in battery handoff procedure;
Further, described battery management plate is provided with multiple voltage and exports, to meet the different power demands of system, when battery electric quantity is discontented with, can control battery management plate by Switching Power Supply is battery charging, when battery electric quantity is full, battery management plate can be controlled by Switching Power Supply and stop as battery charging, to prevent battery overshoot.
Described battery handover module can select a certain Battery pack module to be that external equipment is powered or selects power-off fast, only has a Battery pack to be in discharge condition at every turn.Battery management plate gets the information of the battery module electricity being in discharge condition by battery communication interface, cause the switching action of battery handover module when this battery electric quantity is lower; The magnitude of voltage that battery management plate also can export in the battery module battery of discharge condition with the voltage detection module fast detecting at power interface place, when this battery module departs from battery management plate, voltage detection module detects rapidly the change of voltage, cause the switching action of battery handover module, ensure that response real-time when battery module pulls out away.
By implementing the present invention, achieve a kind of topological structure of multiple batteries hot plug management system, many Battery packs module only has one to be in discharge condition, and passes through the state of communication interface Real-Time Monitoring battery, thus can automatically switch under emergency case.Every block battery all has independent protective plate, when charging and discharging currents is excessive, battery temperature is too high or electricity is not enough, carries out intelligence switch and protection battery.The present invention has given full play to the performance of battery, improves the useful life of battery.Native system supports the hot-swappable of battery module simultaneously, the real-time of handoff response when ensure that battery pulls out away by quick voltage detection module.Also the continued power of equipment can be ensured when electric charge buffer makes battery module switch.By the battery handoff algorithms that the cooperation of battery communication interface, voltage detection module realizes, the accuracy switched when ensure that cell damage or pull out away, has ensured the safe and stable operation of Medical Instruments.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that battery switches schematic diagram;
Fig. 3 is battery switching flow figure;
Wherein battery module 1, battery management plate 2, external equipment 3, Switching Power Supply 4, battery pack 5, battery capacity indication socket 6, electricity quantity inquiring button 7, battery supply interface 8, peripheral device communication interface 9, Switching Power Supply interface 10, battery communication interface 11, independent battery charging inlet 12, battery protecting plate 13, power button 14, external equipment power interface 15, battery handover module 16, electric charge buffer 17, voltage detection module 18, AC power interface 19.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further analyzed.
As shown in Figure 1, it is the structural representation of battery power supply system.Hot swap type battery power supply system of the present invention comprises some battery modules 1, battery management plate 2, Switching Power Supply 4 and communication interface, power interface; Every Battery pack module 1 is connected with battery management plate 2 through battery communication interface 11, battery supply interface 8 by respective connector, and battery module 1 can freely plug arbitrarily; Switching Power Supply 4 is connected by Switching Power Supply interface 10 with battery management plate 2, and Switching Power Supply 4 is charged for battery module 1 by battery management plate 2;
Every Battery pack module 1 enclosed inside has battery core pack 5 and the battery protecting plate 13 of serial or parallel connection, and leaves power supply and communication connector 8 and 11, battery capacity indication socket 6, electricity quantity inquiring button 7, battery protecting plate 13 and independent battery charging inlet 12 in housing appropriate location; Battery protecting plate 13 can detect the information such as electricity, electric current, voltage, temperature, charging current, discharging current of battery in this battery module in real time.Electricity is divided into many grades by several battery capacity indication lamp, and battery capacity indication lamp 6 is given tacit consent to and entirely gone out, and after user presses electricity quantity inquiring button 7, shows.Battery module 1 can utilize power supply adaptor to be charged by independent battery charging inlet 12.
Battery management plate 2 is made up of power interface, communication interface, battery handover module 16, electric charge buffer 17, voltage detection module 18 etc.Many Battery packs module is connected with battery management plate 2 through battery supply interface 8, battery communication interface 11 by respective connector, and connector makes battery module can depart from battery management plate 2 completely, is convenient to the replacing of battery module.Battery connector is made up of battery supply interface 8 and battery communication interface 11.The information such as the electricity of battery, electric current, voltage, temperature, each charging battery module state, each battery module discharge condition are passed to battery management plate by battery communication interface 11 by battery module.
Battery switches schematic diagram as shown in Figure 2, and the battery handover module 16 of battery management plate 2 inside can select a certain road battery to be that equipment is powered or selects power-off fast, only has a Battery pack to be in discharge condition at every turn.When a certain battery module electricity being in discharge condition is lower, battery management plate 2 gets the low information of this place's battery module electricity by battery communication interface 11, causes the switching action of battery handover module 16.On battery management plate 2, each road battery supply interface has voltage detection module 18, this module can fast detecting battery export voltage.When a certain battery module being in discharge condition departs from battery management plate 2, voltage detection module 18 detects rapidly the change of voltage, causes the switching action of battery handover module 16, ensure that response real-time when battery module pulls out away.The external equipment power interface 15 of battery management plate is with charge buffer, and when electric charge buffer ensure that battery switches, the lasting supply of system power supply, makes handoff procedure safety and stability.Battery switching flow as shown in Figure 3, battery management plate is rapid cycle detection from top to down, until battery management plate 2 by battery communication interface 11 with battery module 1 communication success and battery module electricity is greater than 5%, make it discharge, by the battery handoff algorithms that the cooperation of communication interface, voltage detection module realizes, the accuracy switched when ensure that cell damage or pull out away.
Whether the electricity of battery management plate 2 real time record each road battery module, electric current, voltage, battery temperature, each charging battery module state, each battery module discharge condition, each socket there is battery module (if battery communication interface 11 communication when repeatedly failure and voltage detection module 18 detect cell output voltage lower than a certain threshold value, can be thought that this battery does not exist, otherwise exist.) etc. information.External equipment 3 is connected with external equipment power interface 15 by peripheral device communication interface 9 with battery management plate 2.External equipment power interface 15 has multiple power supplies to export, to meet the multiple power demands of equipment.Whether battery management plate 2 has the information such as battery module to pass to equipment by peripheral device communication interface 9 by the electricity of battery module, electric current, voltage, battery temperature, each charging battery module state, battery module discharge condition, each socket.Equipment can carry out showing or alarm according to information.Equipment can be realized functions such as the cycle powers of battery by peripheral device communication interface.
Civil power is powered for Switching Power Supply 4 by AC power interface 19, and AC conversion is direct current by Switching Power Supply 4.Switching Power Supply 4 is connected by Switching Power Supply interface 10 with battery management plate 2, and Switching Power Supply 4 is battery charging by battery management plate.When battery electric quantity is discontented with, Switching Power Supply is battery charging by battery management plate, when battery electric quantity is full, stops charging to prevent battery overshoot.Long press power button 14 3 second, battery management plate 2 is powered for equipment, then grows and press power button 14 3 second, and battery management plate 2 is device powers down.
Above-described embodiment is not that the present invention is not limited only to above-described embodiment for restriction of the present invention, as long as meet application claims, all belongs to protection scope of the present invention.
Claims (7)
1. a safe hot plug formula battery power supply system, is characterized in that comprising some battery modules, battery management plate, Switching Power Supply and communication interface, power interface; Battery module is connected with battery management plate by connector, and battery module can freely plug arbitrarily, and Switching Power Supply is charging battery module by battery management plate;
Described battery module comprises battery core pack and the battery protecting plate of serial or parallel connection, wherein battery protecting plate is used for the information such as Real-Time Monitoring this battery module internal cell electricity, voltage, electric current, temperature, and and external communication, charge and discharge protecting is carried out to this battery simultaneously;
Described battery management plate is for managing the discharge and recharge of each battery module; When having two groups and battery module more than two is connected with battery management plate, a Battery pack module is only had to be in discharge condition.
2. a kind of safe hot plug formula battery power supply system as claimed in claim 1; it is characterized in that described battery module is packaged in a housing battery core pack and battery protecting plate, housing reserves power supply and communication interface, independent battery charging inlet, led battery capacity indication lamp and electricity quantity inquiring button.
3. a kind of safe hot plug formula battery power supply system as claimed in claim 1, it is characterized in that electricity, electric current, voltage, battery temperature that described battery management plate receives every Battery pack module and transmits through battery communication interface, and the charging of battery in each Battery pack module, discharge condition, then these information are sent to external equipment by peripheral device communication interface, external equipment can carry out showing or alarm according to reception information.
4. a kind of safe hot plug formula battery power supply system as claimed in claim 1, it is characterized in that described battery management intralamellar part is provided with some quick voltage detection modules matched with battery module, the output voltage of this battery module can be detected in real time whether within zone of reasonableness; When a Battery pack module is in discharge condition, if its pulled out away or electricity is too low time, battery module that battery management plate is switched to rapidly next group electricity abundance by battery handover module discharges, and prevents battery from crossing and puts.
5. a kind of safe hot plug formula battery power supply system as described in claim 1 or 4, is characterized in that described battery management intralamellar part is provided with charge buffer, to ensure the lasting supply of power supply in battery handoff procedure.
6. a kind of safe hot plug formula battery power supply system as claimed in claim 1, it is characterized in that described battery management plate is provided with multiple voltage and exports, to meet the different power demands of system, when battery electric quantity is discontented with, can control battery management plate by Switching Power Supply is battery charging, when battery electric quantity is full, battery management plate can be controlled by Switching Power Supply and stop as battery charging, to prevent battery overshoot.
7. a kind of safe hot plug formula battery power supply system as claimed in claim 4, is characterized in that described battery handover module can select a certain Battery pack module to be that external equipment is powered or selects power-off fast, only has a Battery pack to be in discharge condition at every turn; Battery management plate gets the information of the battery module electricity being in discharge condition by battery communication interface, cause the switching action of battery handover module when this battery electric quantity is lower; Battery management plate is also by magnitude of voltage that voltage detection module fast detecting exports in the battery module battery of discharge condition, when this battery module departs from battery management plate, voltage detection module detects rapidly the change of voltage, cause the switching action of battery handover module, ensure that response real-time when battery module pulls out away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510885182.XA CN105305572A (en) | 2015-12-04 | 2015-12-04 | Safe hot plugging type battery supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510885182.XA CN105305572A (en) | 2015-12-04 | 2015-12-04 | Safe hot plugging type battery supply system |
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| CN105305572A true CN105305572A (en) | 2016-02-03 |
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| CN201510885182.XA Pending CN105305572A (en) | 2015-12-04 | 2015-12-04 | Safe hot plugging type battery supply system |
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Cited By (3)
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| CN107706996A (en) * | 2017-11-09 | 2018-02-16 | 常州格力博有限公司 | Charge control switching circuit |
| CN108631380A (en) * | 2017-11-09 | 2018-10-09 | 常州格力博有限公司 | More batteries communicate common circuit |
| CN108702007A (en) * | 2017-02-16 | 2018-10-23 | 深圳市大疆灵眸科技有限公司 | Method of supplying power to, for electric installation and electronic device |
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| CN108702007A (en) * | 2017-02-16 | 2018-10-23 | 深圳市大疆灵眸科技有限公司 | Method of supplying power to, for electric installation and electronic device |
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Application publication date: 20160203 |