CN202616810U - Backup battery - Google Patents

Backup battery Download PDF

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Publication number
CN202616810U
CN202616810U CN 201220009046 CN201220009046U CN202616810U CN 202616810 U CN202616810 U CN 202616810U CN 201220009046 CN201220009046 CN 201220009046 CN 201220009046 U CN201220009046 U CN 201220009046U CN 202616810 U CN202616810 U CN 202616810U
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China
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module
battery
battery pack
links
output
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CN 201220009046
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Chinese (zh)
Inventor
徐旭友
吴睿龙
蒲祥松
代祥军
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深圳市比亚迪锂电池有限公司
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Priority to CN201110421193 priority
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Priority to CN 201220009046 priority patent/CN202616810U/en
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Publication of CN202616810U publication Critical patent/CN202616810U/en

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Abstract

The utility model provides a backup battery. The backup battery comprises a battery group, a charging unit, a discharge unit and a battery management system (BMS), wherein the charging unit and the discharge unit are connected with the battery group respectively. The BMS is connected with the battery group, the charging unit and the discharge unit respectively. The BMS detects an operation parameter of the battery group and controls the charging unit and the discharge unit according to the operation parameter. According to an embodiment of the utility model, the BMS and the battery group are bound into one body so that a battery group state can be effectively monitored; multivariable closed loop control is performed; the battery group can be prevented from being overcharged and overdischarged; usage safety of the battery group is guaranteed and a service life of the battery group is prolonged.

Description

A kind of backup battery

Technical field

The utility model relates to the electronic circuit technology field, particularly a kind of backup battery.

Background technology

In the information age, data security highlights important.No matter be visual plants such as the computer equipment that uses of government department or large enterprise or the webserver, data storage; In order to prevent to take place, all need the deposit energy of configuration standard time or " long delay " to guarantee the normal use of system usually in the situation that the power down suddenly of power electricity makes the equipment of working loss of vital data occur.Backup battery is as a kind of deposit energy, along with the high speed development of IT information technology and the extensive use of computer system are arisen at the historic moment.

Battery types as backup battery generally is capacity density height, rechargeable lithium ion battery and ferric phosphate lithium cell secondary cells such as (iron cells).They and batteries such as other types battery such as NI-G, ni-mh are relatively; Have the energy density height, have extended cycle life, self-discharge rate is low, do not have outstanding advantages such as " memory effect " and green non-pollution; Therefore obtain application more and more widely, promoted the update of battery technology.

Because the field that the standard power backup is used is combined into voltage platforms such as 12V, 24V, 48V, secondary cell voltages such as monomer lithium ion battery can't satisfy application demand, need a plurality of batteries series connection to use usually.Yet the secondary cells such as lithium ion battery that series connection is used are owing to the limitation of manufacturing process and self character, and individual differentiation is bigger.The emphasis of tradition backup battery manufacturer research is to improve single battery performance, has ignored application problem and the parallelly connected influence of using battery performance of battery strings in groups; And conventional batteries management system (BMS) is separated with battery; Ignored the influence of temperature to battery performance; Ignored aging influence to battery performance, ignored the difference of dissimilar, producer, electric pressure, there be serious overcharging and overdischarge hidden danger in the part battery in the battery pack; Secondary cell anti-over-charging ability such as lithium ion battery is with to cross exoergic power relatively poor, so fail safe and life-span property all can't guarantee in addition.

The utility model content

The utility model is intended to one of solve the problems of the technologies described above at least.For this reason, the purpose of the utility model is to propose a kind of backup battery.This backup battery ability effective monitoring battery pack state is carried out the multivariable closed-loop control, prevents battery pack overcharge and overdischarge, ensures safety that battery pack is used and the useful life of improving battery pack.

To achieve these goals, the utility model provides a kind of backup battery, comprise battery pack; The charhing unit and the discharge cell that link to each other with said battery pack respectively; And battery management system BMS; Said BMS links to each other with said battery pack, said charhing unit and said discharge cell respectively; Said BMS detects the operational factor of said battery pack, and according to said operational factor said charhing unit and discharge cell is controlled.

Battery management system BMS according to the backup battery of the utility model monitors in real time and controls battery pack; Ability effective monitoring battery status is carried out the multivariable closed-loop control, prevents battery pack overcharge and overdischarge; Ensure the safety that battery pack is used, improve the useful life of battery pack.The backup battery stable performance of the utility model in addition, volume small-power are big, can realize big multiplying power discharging, support long-time power backup and the power backup demand that adapts under the low temperature adverse circumstances; And reduced the complexity of circuit design; Improved the reliability of design, and supported hot plug, maintained easily.

Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.

Description of drawings

Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:

Fig. 1 is the module frame chart of the backup battery of the utility model embodiment;

Fig. 2 is the topological sketch map of battery management system BMS of the backup battery of the utility model embodiment;

Fig. 3 is a kind of topological sketch map of charhing unit of the backup battery of the utility model embodiment;

Fig. 4 is the another kind of topological sketch map of charhing unit of the backup battery of the utility model embodiment;

Fig. 5 is a kind of topological sketch map of discharge cell of the backup battery of the utility model embodiment;

Fig. 6 is the another kind of topological sketch map of discharge cell of the backup battery of the utility model embodiment; And

The topological sketch map of the heating unit of the backup battery of Fig. 7 the utility model embodiment.

Embodiment

Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.

In the description of the utility model; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.

In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.

Below in conjunction with accompanying drawing 1-7 the backup battery according to the utility model embodiment is described.

With reference to figure 1, comprise battery pack 110, charhing unit 120, discharge cell 130 and battery management system 140 (BMS) according to the backup battery of the utility model embodiment.

Charhing unit 120 all links to each other with battery pack 110 with discharge cell 130.Battery management system 140 (BMS) links to each other with battery pack 110, charhing unit 120 and discharge cell 130 respectively; Battery management system 140 (BMS) detects the operational factor of battery pack 110, and according to operational factor charhing unit 120 and discharge cell 130 is controlled.In some examples of the utility model, the operational factor of battery pack 110 for example comprises the voltage of battery pack 110, the electric current of battery pack 110 and the temperature of battery pack 110 etc.

Battery management system BMS according to the backup battery of the utility model monitors in real time and controls battery pack; Ability effective monitoring battery status is carried out the multivariable closed-loop control, prevents battery overcharge and overdischarge; Ensure the safety that battery uses, improve the useful life of battery.The backup battery stable performance of the utility model in addition, volume small-power are big, can realize big multiplying power discharging, support long-time power backup and the power backup demand that adapts under the low temperature adverse circumstances; Through strictness screening, combo, avoided the problem of a plurality of battery strings coupling consistency differences, reduced the complexity of circuit design, improved the reliability of design; Support hot plug simultaneously, maintain easily.

Respectively charhing unit 120, discharge cell 130 and the battery management system 140 (BMS) of the backup battery of the utility model embodiment are done detailed description below in conjunction with accompanying drawing 2-6.

As shown in Figure 2, battery management system 140 (BMS) comprises diode D1, accessory power supply 141, operational parameter detection unit 142 and controller MCU.

The positive pole of diode D1 links to each other with the output (right side of rectification module 150) of rectification module 150.The input of accessory power supply 141 links to each other with the negative pole of diode D1.Operational parameter detection unit 142 links to each other with battery pack 110, and operational parameter detection unit 142 detects the operational factor of battery pack 110.Controller MCU links to each other with operational parameter detection unit 142 with accessory power supply 141 respectively, and controller MCU controls charhing unit 120 and discharge cell 130 according to operational factor.

With reference to figure 2; In the further embodiment of the utility model; Battery management system 140 (BMS) also comprises switch module 144, and the output of switch module 144 links to each other with accessory power supply 141, and the input of switch module 144 links to each other with battery pack 110; The Enable Pin of switch module 144 links to each other with controller MCU, and switch module 144 is supplied power through 110 pairs of accessory power supplys 141 of battery pack under the control of controller MCU.

Combine Fig. 2 once more, battery management system 140 (BMS) also can comprise remote alarm interface 143, and when said operational factor was unusual, battery management system 140 (BMS) was through remote alarm interface 143 output operational factors.Thus, can make the user recognize the real-time status of battery pack 110, and then guarantee the safety that battery pack 110 is used.

As shown in Figure 3, the charhing unit 120 of the utility model embodiment further includes the slow module 121 that starts, and the slow input that starts module 121 links to each other with the output of rectification module 150, and the slow voltage that starts 150 outputs of 121 pairs of rectification modules of module cushions; Boost module 122, the input of boost module 122 links to each other with the slow output that starts module 121, and 122 pairs of slow voltages that start module 121 bufferings of boost module boost; And switch module 123, the input of switch module 123 links to each other with the output of boost module 122, and the output of switch module 123 links to each other with battery pack 110, and switch module 123 charges to battery pack 110 under the control of battery management system 140 (BMS).

Further, charhing unit 120 also comprises current-limiting resistance R1, and the end of current-limiting resistance R1 links to each other with the output of boost module 122, and the other end of current-limiting resistance R1 links to each other with the input of switch module 123.

Need to understand, the output voltage that act as boost module 122 that in fact current-limiting resistance R1 plays carries out step-down, and promptly current-limiting resistance R1's act as dividing potential drop; Therefore; Can have the device of dividing potential drop effect with other, as shown in Figure 4, alternatively; Charhing unit 120 also includes step-down module 124, promptly replaces current-limiting resistance R1 with step-down module 124.The input of step-down module 124 links to each other with the output of boost module 122, and the output of step-down module 124 links to each other with the input of switch module 123, and the output voltage of 124 pairs of boost modules 122 of step-down module carries out step-down.

With reference to figure 5, the discharge cell 130 of the backup battery of the utility model embodiment further comprises discharge switch module 131 and inefficacy isolation module 132.

The input of discharge switch module 131 links to each other with battery pack 110, and discharge switch module 131 is exported the voltage of battery pack 110 under the control of battery management system 140 (BMS).The input of inefficacy isolation module 132 links to each other with the output of discharge switch module 131; The output of inefficacy isolation module 132 links to each other with load 160, and inefficacy isolation module 132 cuts off during greater than the input terminal voltage of inefficacy isolation module 132 at the output end voltage of inefficacy isolation module 132 automatically.

With reference to figure 6; In some examples of the utility model; Discharge cell 130 also comprises discharge step-down module 133, and discharge step-down module 133 is connected between battery pack 110 and the discharge switch module 131, and the output voltage of 133 pairs of discharge switch modules 131 of discharge step-down module carries out step-down.

As shown in Figure 1; The backup battery of the utility model embodiment further comprises heating unit 170; Heating unit 170 links to each other with battery management system 140 (BMS); After the temperature of battery pack 110 was lower than threshold value, 170 pairs of battery pack 110 of battery management system 140 (BMS) control heating unit heated.Need to prove that above-mentioned threshold value rule of thumb is worth definite, the temperature of understanding battery pack 110 generally easily is low excessively; To the performance of battery pack 110 be impacted; Therefore, cross for the temperature that prevents battery pack 110 and low self performance to be impacted, in this embodiment; Can heat through 170 pairs of battery pack 110 of heating unit, low excessively with the temperature that prevents battery pack 110.Thus, avoid the temperature of battery pack 110 to cross low performance and impact, promoted the performance of battery pack 110 effectively self.

As shown in Figure 7, heating unit 170 further includes heating module 171, and an end of heating module 171 links to each other with the output of rectification module; Heating switch module 172, heating switch module 172 links to each other with the other end of heating module 171, and heating switch module 172 starts 171 pairs of battery pack 110 of heating module and heats under the control of battery management system 140 (BMS).

Operation principle below in conjunction with the backup battery of 1 to 7 couple of the utility model embodiment of accompanying drawing is done detailed description.

With reference to figure 1, the operation principle of the backup battery of the utility model embodiment is following:

When electric main just often; Rectification module 150 converts electric main to+and 12V gives load 160 power supplies; Starting built-in battery management system 140 (BMS) control charhing unit 120 conversion+12V simultaneously gives battery pack 110 chargings; Detect voltage, temperature and the electric current (charging current) of battery pack 110 in the charging process always,, then continue to make 110 chargings of 120 pairs of battery pack of charhing unit until being full of if voltage, temperature and the electric current of battery pack 110 are normal; If the overtension of any one battery in the battery pack 110 reaches the protection value of setting; Or the too high protection value that reaches setting of temperature, or protection value that surpass to set of charging current, then battery management system 140 (BMS) control charhing unit 120 is closed output; Stop battery pack 110 chargings are carried out charge protection and reported battery operation state and warning information through remote alarm interface 143 battery pack 110.The temperature that detects battery pack 110 as if battery management system 140 (BMS) in the charging process is low excessively; Reach the set point that starts heating unit 170; Then controlling heating unit 170 startups heats battery pack 110; The temperature of battery pack 110 reaches the set point of closing heating unit 170 after heating, then controls heating unit 170 and stops battery pack 110 is heated.

After the electric main power down; Battery management system 140 (BMS) provides load 160 power supplies in 1mS inner control battery pack 110 through discharge cell 130, detects voltage, temperature and the discharging current of battery pack 110 in the discharge process, if voltage, temperature and the discharging current of battery pack 110 are normal always; Then continue to make 130 pairs of loads of discharge cell, 160 power supplies to finish until power backup; After power backup finished, battery management system 140 (BMS) provided discharge control signal, cut off battery pack 110 power supplies; If the brownout of any one battery in the battery pack 110 reaches the protection value of setting; Or the too high protection value that reaches setting of temperature, or protection value that surpass to set of discharging current, then battery management system 140 (BMS) control discharge cell 130 is closed output; Stop load 160 power supplies are carried out discharge prevention and reported battery operation state and warning information through remote alarm interface 143 battery pack 110.

With reference to figure 2, the operation principle of battery management system 140 (BMS) is following:

When electric main rectification module 150 output just often+12V is input to the input IN210 of accessory power supply 141 through diode D1; Make the output OUT210 of accessory power supply 141 export the feeder ear VDD that suitable operating voltage is given battery management system 140 (MCU); Make battery management system 140 (MCU) steady operation; The compiler (not shown) is through 213 pairs of battery management systems 140 of ISP interface (MCU) write-in program code, and battery management system 140 (MCU) outputs a control signal to the Enable Pin EN of switching circuit 215, makes battery pack 110 be input to accessory power supply 141 through switch module 144; With rectification module 150 output+12V constitutes and supplies power with double circuit; After the electric main power down, not power down thereupon of the feeder ear VDD of battery management system 140 (MCU) improves the reliability of battery management system 140 (MCU) work like this.The detecting unit 142 of voltage, electric current, temperature is gathered each voltage, temperature and electric current variation of battery pack 110 constantly in charging and the discharge process; Be input to MCU; Form the multivariable closed-loop control; Output charging control signal, discharge control signal and heating control signal control effectively to charhing unit 120, discharge cell 130 and heating unit 170 respectively and report battery operation state and warning information through remote alarm interface 143.

With reference to figure 3, the operation principle of charhing unit 120 is following:

When electric main rectification module 150 output just often+12V is input to boost module 122 through the slow module 121 that starts; Slow start that input IN231 that module 121 is positioned at boost module 122 and rectification module 150 export+12V in the middle of; Purpose is that the input IN231 voltage of boost module 122 is slowly risen; Avoid causing rectification module 150 outputs+12V produces than great fluctuation process, influence is supplied power to load 160.The effect of boost module 122 is carried out voltage transitions with rectification module 150 output+12V, boosts to suitable voltage range to guarantee that battery pack 110 can be full of electricity fully, guarantees the power backup demand.The effect of current-limiting resistance R1 is to prevent that large current charge from causing the repolarization of crossing of battery pack 110; Thereby influence the consistency of battery pack 110; Influence useful life; Switch module 123 is between boost module 122 and battery pack 110, and the charging control signal of battery management system 140 (BMS) output is input to the Enable Pin EN232 of switch module 123, and control switch module 123 is switched on or switched off.

With reference to figure 4, following in the operation principle of other a kind of charhing unit 120:

When electric main rectification module 150 output just often+12V is input to boost module 122 through the slow module 121 that starts; Slow start that input IN231 that module 121 is positioned at boost module 122 and rectification module 150 export+12V in the middle of; Purpose is that the input IN231 voltage of boost module 122 is slowly risen; Avoid causing rectification module 150 outputs+12V produces than great fluctuation process, influence is supplied power to load 160.The effect of boost module 122 is carried out voltage transitions with rectification module 150 output+12V, boosts to the input of suitable voltage range as reduction voltage circuit 233.Be with the difference of Fig. 3: reduction voltage circuit 233 substitutes current-limiting resistance R1.It is middle with switching circuit 232 that said step-down module 124 is positioned at boost module 122; Effect is that the output voltage after boost module 122 boost conversion is carried out DC/DC step-down conversion to realize that battery pack 110 is carried out the charging of CC/CV pattern; Compare with scheme shown in Figure 3, the advantage of this scheme is that charge efficiency is higher.The charging control signal of battery management system 140 (BMS) output is input to the Enable Pin EN232 of switch module 123, and control switch module 123 is switched on or switched off.

With reference to figure 5, the operation principle of discharge cell 130 is following:

When electric main rectification module 150 output just often+12V gives load 160 power supplies; Battery management system 140 (BMS) output discharge control signal breaks off to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, cuts off 110 pairs of loads of battery pack, 160 power supplies.

When the electric main power down, battery management system 140 (BMS) output discharge control signal is connected to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, makes battery pack 110 through 132 pairs of loads of inefficacy isolation module, 160 power supplies.In the power supply process; When power backup finishes or detect battery pack 110 voltages, temperature, discharging current to have unusually; Surpass the protection value of setting; Battery management system 140 (BMS) output discharge control signal breaks off to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, cuts off 110 pairs of loads of battery pack, 160 power supplies.The effect of inefficacy isolation module 132 is that the output OUT240 voltage ratio input IN240 voltage when inefficacy isolation module 132 is high the time; Be that battery pack 110 is can't be to load 160 normal power supplies the time; Automatically cut off discharge loop; Prevent to pour in down a chimney the generation of phenomenon, and support hot plug, maintain easily.

With reference to figure 6, a kind of in addition operation principle of discharge cell 130 is following:

When electric main rectification module 150 output just often+12V gives load 160 power supplies; Battery management system 140 (BMS) output discharge control signal breaks off to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, cuts off 110 pairs of loads of battery pack, 160 power supplies.

When the electric main power down, battery management system 140 (BMS) output discharge control signal is connected to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, makes battery pack 110 through 132 pairs of loads of inefficacy isolation module, 160 power supplies; In the power supply process; When power backup finishes or detect battery pack 110 voltages, temperature, discharging current to have unusually; Surpass the protection value of setting; Battery management system 140 (BMS) output discharge control signal breaks off to the Enable Pin EN241 control discharge switch module 131 of discharge switch module 131, cuts off 110 pairs of loads of battery pack, 160 power supplies.The effect of inefficacy isolation module 132 is that the output OUT240 voltage ratio input IN240 voltage when inefficacy isolation module 132 is high the time; Be that battery pack 110 is can't be to load 160 normal power supplies the time; Automatically cut off discharge loop; Prevent to pour in down a chimney the generation of phenomenon, and support hot plug, maintain easily.Compare with scheme shown in Figure 5; Increased discharge switch module 131, in some applications, the voltage that battery pack 110 is full of behind the electricity can be higher than the maximum voltage that load 160 can bear; If directly to load 160 power supplies, load 160 can't operate as normal or damage because operating voltage is too high.In order not only to satisfy but also not influence load 160 operate as normal, so battery pack 110 can not be supplied power to load 160 but need carry out suitable step-down processing through discharge switch module 131 directly to load 160 power supplies again to load 160 long-time power backups.

With reference to figure 7, the operation principle of heating unit 170 is following:

When electric main just often rectification module 150 output+12V give load 160 power supplies; If it is low excessively that battery management system 140 (BMS) detects the temperature of battery pack 110; Reach the set point that starts heating unit 170, then output heating control signal to the Enable Pin EN251 control rectification module 150 of heating switch module 172 export+12V heats through 171 pairs of battery pack 110 of heating module.The temperature of battery pack 110 reaches the set point of closing heating unit 170 after heating, and then output heating control signal is cut off 110 heating of 171 pairs of battery pack of heating module to the Enable Pin EN251 of heating switch module 172.Even under abominable cold environmental conditions, the temperature of battery pack 110 still can remain on suitable temperature range like this, can guarantee the charging capacity and the power backup demand of battery pack 110.

In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.

Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is claim and be equal to and limit.

Claims (12)

1. a backup battery is characterized in that, comprising:
Battery pack;
The charhing unit and the discharge cell that link to each other with said battery pack respectively; And
Battery management system BMS, said BMS link to each other with said battery pack, said charhing unit and said discharge cell respectively, and said BMS detects the operational factor of said battery pack, and according to said operational factor said charhing unit and discharge cell are controlled.
2. backup battery as claimed in claim 1 is characterized in that, said operational factor comprises voltage, electric current and the temperature of said battery pack.
3. backup battery as claimed in claim 2 is characterized in that, also comprises:
Heating unit, said heating unit links to each other with said BMS, and after the temperature of said battery pack was lower than threshold value, said BMS controlled said heating unit said battery pack is heated.
4. backup battery as claimed in claim 1 is characterized in that, said BMS further comprises:
Diode, the positive pole of said diode links to each other with the output of rectification module;
Accessory power supply, the input of said accessory power supply links to each other with the negative pole of said diode;
The operational parameter detection unit, said operational parameter detection unit links to each other with said battery pack, and said operational parameter detection unit detects the operational factor of said battery pack; And
Controller, said controller link to each other with said operational parameter detection unit with said accessory power supply respectively, and said controller is controlled said charhing unit and discharge cell according to said operational factor.
5. backup battery as claimed in claim 4 is characterized in that, said BMS also comprises:
Remote alarm interface, when said operational factor was unusual, said BMS exported said operational factor through said remote alarm interface.
6. backup battery as claimed in claim 4 is characterized in that, said BMS also comprises:
Switch module; The output of said switch module links to each other with said accessory power supply; The input of said switch module links to each other with said battery pack; The Enable Pin of said switch module links to each other with said controller, and said switch module is supplied power to said accessory power supply through said battery pack under the control of said controller.
7. backup battery as claimed in claim 1 is characterized in that, said charhing unit further comprises:
The slow module that starts, the input of said slow startup module links to each other with the output of rectification module, and said slow startup module cushions the voltage of said rectification module output;
Boost module, the input of said boost module links to each other with the output of said slow startup module, and said boost module boosts to the voltage of said slow startup module buffering; And
Switch module, the input of said switch module links to each other with the output of said boost module, and the output of said switch module links to each other with said battery pack, and said switch module charges to said battery pack under the control of said BMS.
8. backup battery as claimed in claim 7 is characterized in that, said charhing unit also comprises:
Current-limiting resistance, an end of said current-limiting resistance links to each other with the output of said boost module, and the other end of said current-limiting resistance links to each other with the input of said switch module.
9. backup battery as claimed in claim 7 is characterized in that, said charhing unit also comprises:
The step-down module, the input of said step-down module links to each other with the output of said boost module, and the output of said step-down module links to each other with the input of said switch module, and said step-down module is carried out step-down to the output voltage of said boost module.
10. backup battery as claimed in claim 1 is characterized in that, said discharge cell further comprises:
The discharge switch module, the input of said discharge switch module links to each other with said battery pack, and said discharge switch module is exported the voltage of said battery pack under the control of said BMS; And
The inefficacy isolation module; The input of said inefficacy isolation module links to each other with the output of said discharge switch module; The output of said inefficacy isolation module links to each other with load, and said inefficacy isolation module cuts off during greater than the input terminal voltage of said inefficacy isolation module at the output end voltage of said inefficacy isolation module automatically.
11. backup battery as claimed in claim 10 is characterized in that, said discharge cell also comprises:
Discharge step-down module, said discharge step-down module is connected between said battery pack and the said discharge switch module, and said discharge step-down module is carried out step-down to the output voltage of said discharge switch module.
12. backup battery as claimed in claim 3 is characterized in that, said heating unit further comprises:
Heating module, an end of said heating module links to each other with the output of rectification module;
Heating switch module, said heating switch module links to each other with the other end of said heating module, and said heating switch module starts said heating module said battery pack is heated under the control of said BMS.
CN 201220009046 2011-12-15 2012-01-10 Backup battery CN202616810U (en)

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Application Number Priority Date Filing Date Title
CN201110421193.4 2011-12-15
CN201110421193 2011-12-15
CN 201220009046 CN202616810U (en) 2011-12-15 2012-01-10 Backup battery

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Application Number Priority Date Filing Date Title
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CN103248100A (en) * 2013-05-27 2013-08-14 浙江南峰电气有限公司 Back-up power source charging-discharging control circuit
CN103269118A (en) * 2013-05-27 2013-08-28 浙江南峰电气有限公司 Back-up source power supply control circuit
CN103475062A (en) * 2013-09-24 2013-12-25 东莞天兆光电科技有限公司 Wearable electric band
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CN105262171A (en) * 2015-10-29 2016-01-20 桂林市腾瑞电子科技有限公司 Battery charging protection control system and method
CN105846479A (en) * 2015-01-13 2016-08-10 葛炽昌 Exchange battery pack for electric car, and control method for exchange battery pack
CN106058991A (en) * 2016-07-06 2016-10-26 深圳市中科联电科技有限公司 On-vehicle mobile intelligent standby AC/DC power supply system
CN106410955A (en) * 2016-10-28 2017-02-15 北京航天控制仪器研究所 Uninterruptible power supply circuit used for gravity measurement

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103248100A (en) * 2013-05-27 2013-08-14 浙江南峰电气有限公司 Back-up power source charging-discharging control circuit
CN103269118A (en) * 2013-05-27 2013-08-28 浙江南峰电气有限公司 Back-up source power supply control circuit
CN103248100B (en) * 2013-05-27 2016-03-30 浙江南峰电气有限公司 A kind of back-up power source charging-dischargingcontrol control circuit
CN103269118B (en) * 2013-05-27 2016-05-25 浙江南峰电气有限公司 A kind of back-up source power-supplying circuit
CN103475062A (en) * 2013-09-24 2013-12-25 东莞天兆光电科技有限公司 Wearable electric band
CN103683383A (en) * 2013-09-26 2014-03-26 华为技术有限公司 A low voltage standby power circuit and a method
CN103683383B (en) * 2013-09-26 2016-06-22 华为技术有限公司 A kind of low voltage standby power circuit and method
CN105846479A (en) * 2015-01-13 2016-08-10 葛炽昌 Exchange battery pack for electric car, and control method for exchange battery pack
CN105262171A (en) * 2015-10-29 2016-01-20 桂林市腾瑞电子科技有限公司 Battery charging protection control system and method
CN106058991A (en) * 2016-07-06 2016-10-26 深圳市中科联电科技有限公司 On-vehicle mobile intelligent standby AC/DC power supply system
CN106410955A (en) * 2016-10-28 2017-02-15 北京航天控制仪器研究所 Uninterruptible power supply circuit used for gravity measurement
CN106410955B (en) * 2016-10-28 2019-03-22 北京航天控制仪器研究所 One kind being used for gravimetric uninterrupted power supply circuit

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