CN204481504U - The system that a kind of battery pack parallel connection uses - Google Patents
The system that a kind of battery pack parallel connection uses Download PDFInfo
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- CN204481504U CN204481504U CN201520056635.3U CN201520056635U CN204481504U CN 204481504 U CN204481504 U CN 204481504U CN 201520056635 U CN201520056635 U CN 201520056635U CN 204481504 U CN204481504 U CN 204481504U
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Abstract
This application provides the system that the parallel connection of a kind of battery pack uses, comprising: distribution box, high frequency switch power, the first parallel module, the second parallel module, the first batteries, the second batteries, battery management module BMS; First parallel module comprises the first current limliting module, and the second parallel module comprises the second current limliting module; Distribution box is connected with electric main, high frequency switch power and AC electric equipment respectively; High frequency switch power is connected with the first parallel module, the second parallel module and direct-flow electricity utilization apparatus respectively; BMS is connected respectively with A.C. contactor, the first parallel module, the second parallel module, the first batteries, the second batteries.Controlled the current limliting module in different parallel module by BMS, avoid, during different batteries group charged in parallel, Biased flow phenomenon occurs, manage batteries, the parallel connection realizing different batteries group uses simultaneously.
Description
Technical field
The application relates to battery backup power supply system field, the system of particularly a kind of battery pack parallel connection use.
Background technology
Along with the development of technology, the requirement that people use the parallel connection of different battery pack is more and more higher.
The DC uninterrupted electric power system that existing standby electric equipment generally uses batteries to form is powered, but different batteries group faces the not equal numerous situation of a batch difference, producer, make different batteries group when parallel connection uses, when giving each different batteries charging, easy generation Biased flow phenomenon, affects the useful life of each battery pack.
Therefore, how to effectively integrate batteries resource, make the parallel connection use that it can be safe and reliable become problem demanding prompt solution.
Utility model content
Technical problems to be solved in this application are to provide the system that the parallel connection of a kind of battery pack uses, to solve in prior art different batteries group in parallel connection uses, when giving each different batteries charging, easily producing Biased flow phenomenon, affecting the problem in the useful life of each battery pack.
Its concrete scheme is as follows:
The system that battery pack parallel connection uses, this system comprises: distribution box, high frequency switch power, the first parallel module, the second parallel module, the first batteries, the second batteries, battery management module BMS;
Described first parallel module comprises the first current limliting module, and described second parallel module comprises the second current limliting module;
The input of described distribution box is connected with electric main, and the first output of described distribution box is connected by the input of A.C. contactor with described high frequency switch power, and the second output of described distribution box is connected with AC electric equipment;
First output of described high frequency switch power is connected with described second parallel module with described first parallel module respectively, and the second output of described high frequency switch power is connected with direct-flow electricity utilization apparatus;
Described battery management module BMS is connected with described second batteries respectively with described A.C. contactor, described first parallel module, described second parallel module, described first batteries.
Above-mentioned system, preferably, described first parallel module comprises:
Three parallel branches, are respectively the first current limliting module branch road, the first D.C. contactor branch road and the first diode branch;
Described first diode branch comprises: the first diode and the first normally closed gate-controlled switch.
Above-mentioned system, preferably, described second parallel module comprises:
Three parallel branches, are respectively the second current limliting module branch road, the second D.C. contactor branch road and the second diode branch;
Described second diode branch comprises: the second diode and the second normally closed gate-controlled switch.
Above-mentioned system, preferably, described battery management module BMS comprises:
First battery strings administrative unit BCU1, the second battery strings administrative unit BCU2 and battery bunch management of charging and discharging unit B MU;
Described first battery strings administrative unit BCU1 is connected with described first batteries with described battery bunch management of charging and discharging unit B MU respectively, and described second battery strings administrative unit BCU2 is connected with described second batteries with a described battery bunch management of charging and discharging power supply BMU respectively.
Above-mentioned system, preferably, described battery management module BMS also comprises:
Transducer, described transducer comprises: voltage sensor, current sensor and temperature sensor.
Above-mentioned system, preferably, also comprises:
First fuse, the first end of described first fuse is connected with described high frequency switch power, and the second end of described first fuse is connected with described first parallel module.
Above-mentioned system, preferably, also comprises:
Second fuse, the first end of described second fuse is connected with described high frequency switch power, and the second end of described second fuse is connected with described second parallel module.
In the system that a kind of battery pack parallel connection that the application provides uses, comprising: distribution box, high frequency switch power, the first parallel module, the second parallel module, the first batteries, the second batteries, battery management module BMS; Described first parallel module comprises the first current limliting module, and described second parallel module comprises the second current limliting module; The input of described distribution box is connected with electric main, and the first output of described distribution box is connected by the input of A.C. contactor with described high frequency switch power, and the second output of described distribution box is connected with AC electric equipment; First output of described high frequency switch power is connected with described second parallel module with described first parallel module respectively, and the second output of described high frequency switch power is connected with direct-flow electricity utilization apparatus; Described battery management module BMS is connected with described second batteries respectively with described A.C. contactor, described first parallel module, described second parallel module, described first batteries.When ensureing batteries safety for electricity, the parallel connection of the batteries of variety classes, different size, different batches or different manufacturers is used, and the current limliting module controlled by described battery management module BMS in different parallel module, avoid, during different batteries group charged in parallel, Biased flow phenomenon occurs, the parallel connection realizing different batteries group uses, jointly for equipment provides emergent standby electricity, improve utilance and the dilatation convenience of existing resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the system embodiment that a kind of battery pack parallel connection of the application uses.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
With reference to figure 1, show the structural representation of the system embodiment that a kind of battery pack parallel connection of the application uses, this system comprises:
Distribution box 101, high frequency switch power 102, first parallel module 103, second parallel module 104, first batteries 110, second batteries 111 and battery management module BMS 105, described first parallel module 103 comprises the first current limliting module, and described second parallel module 104 comprises the second current limliting module.
The input of described distribution box 101 is connected with electric main 106, first output of described distribution box 101 is connected by the input of A.C. contactor 107 with described high frequency switch power 102, second output of described distribution box 101 is connected with AC electric equipment 108, power directly to AC electric equipment 108, described AC electric equipment 108 is air-conditioning and other power consumption equipments.
First output of described high frequency switch power 102 is connected with described second parallel module 104 with described first parallel module 103 respectively, power to respectively described first batteries 110 and described second batteries 111, second output of described high frequency switch power 102 is connected with direct-flow electricity utilization apparatus 109, power directly to direct-flow electricity utilization apparatus 109, described direct-flow electricity utilization apparatus 109 is communication power consumption equipment, but is not limited thereto communication power consumption equipment.
Described battery management module BMS 105 is connected with described second parallel module 104 respectively with described A.C. contactor 107, described first parallel module 103, described battery management module BMS105 controls the open and close situation of described A.C. contactor 107, and controls described first parallel module 103 and described second parallel module 104.
Described first parallel module 103 comprises three parallel branches, described three parallel branches are respectively the first current limliting module branch road, first D.C. contactor branch road and the first diode branch, described first current limliting branch road is described first current limliting module, described first D.C. contactor branch road is the first D.C. contactor, described first diode branch comprises the first diode and the first normally closed switch, wherein said first current limliting module is for limiting the charging current of described first batteries 110, described first diode is for guaranteeing the reliable power supply of power consumption equipment, the capacity that described first diode is combined with described first normally closed switch KR1 with realizing described first batteries 110 is demarcated.
Described second parallel module 104 comprises three parallel branches, described three parallel branches are respectively the second current limliting module branch road, second D.C. contactor branch road and the second diode branch, described second current limliting branch road is described second current limliting module, described second D.C. contactor branch road is the second D.C. contactor, described second diode branch comprises the second diode and the second normally closed switch, wherein the second current limliting module is for limiting the charging current of described second batteries 111, described second diode is for guaranteeing the reliable power supply of power consumption equipment, the capacity that described second diode is combined with described second normally closed switch KR2 with realizing described second batteries 111 is demarcated.
Described battery management module BMS comprises:
First battery strings administrative unit BCU1 114, second battery strings administrative unit BCU2 115, and battery bunch management of charging and discharging unit B MU 116.
Described first battery strings administrative unit BCU1 114 is connected with described first batteries 110 with described battery bunch management of charging and discharging unit B MU 116 respectively; Described second battery strings administrative unit BCU2 115 is connected with described second batteries 111 with described battery bunch management of charging and discharging power supply BMU 116 respectively.Described battery management module BMS 105 is by described first and gang mould 103 controls the charge status of described first batteries 110, and described battery management module BMS 105 controls the charge status of described second batteries 111 by described second parallel module 104.
Described battery management module BMS 105 by communication port gather with each/control module is connected, acquisition module comprises voltage sensor, current sensor and temperature sensor, described voltage sensor is for detecting each monomer battery voltage, described current sensor is for detecting the electric current of each batteries charging circuit, and described temperature sensor is for the inside and outside temperature of the temperature and accumulation chamber that detect each cell.
Accurately detecting on cell voltage and the isoparametric basis of temperature, the long-range demarcation of battery group capacity can be realized, disconnect urban electric power switch A.C. contactor 107 and the second normally closed switch KR2, the first D.C. contactor KM1 only in closed described first parallel module 103, detect the healthy state of described first batteries 110 with actual load, closed urban electric power switch A.C. contactor 107 is full of electricity in time afterwards; Disconnect urban electric power switch A.C. contactor 107 and the first normally closed switch KR1, the second D.C. contactor KM2 in closed described second parallel module 104, the battery health state of described second batteries 111 can be detected, thus realize detecting to cell health state on backstage.
On network analysis electric current, the isoparametric basis of voltage, by data analysis, trend prediction, Timeliness coverage incipient fault point, real time preventative maintenance, be aided with GIS information, backstage generates maintenance route and maintenance work list, improves accuracy and the high efficiency of maintenance work, reduces O&M cost.
In the application, also comprise:
First fuse 112, the first end of described first fuse 112 is connected with described high frequency switch power, second end of described first fuse 112 is connected with described first parallel module, ensures safety, the reliability service of described first parallel module and described first batteries.
Second fuse 113, the first end of described second fuse 113 is connected with described high frequency switch power, second end of described second fuse 113 is connected with described second parallel module, ensures safety, the reliability service of described second parallel module and described second batteries.
If desired plurality of groups of storage batteries (n group) parallel connection uses, then every group storage battery increases by 1 charge-discharge modules, sets the charge parameter of each Battery pack respectively, realizes plurality of groups of storage batteries parallel connection and uses.
In the system that a kind of battery pack parallel connection that the application provides uses, comprising: distribution box, high frequency switch power, the first parallel module, the second parallel module, the first batteries, the second batteries, battery management module BMS; Described first parallel module comprises the first current limliting module, and described second parallel module comprises the second current limliting module; The input of described distribution box is connected with electric main, and the first output of described distribution box is connected by the input of A.C. contactor with described high frequency switch power, and the second output of described distribution box is connected with AC electric equipment; First output of described high frequency switch power is connected with described second parallel module with described first parallel module respectively, and the second output of described high frequency switch power is connected with direct-flow electricity utilization apparatus; Described battery management module BMS is connected with described second parallel module respectively with described A.C. contactor, described first parallel module.When ensureing batteries safety for electricity, the parallel connection of the batteries of variety classes, different size, different batches or different manufacturers is used, and the current limliting module controlled by described battery management module BMS in different parallel module, avoid, during different batteries group charged in parallel, Biased flow phenomenon occurs, the parallel connection realizing different batteries group uses, jointly for equipment provides emergent standby electricity, improve utilance and the dilatation convenience of existing resource.
The system that this battery pack parallel connection that the application provides uses can be applied in communication base station system, or be applied in other backup power supply system, the topological structure that the application discloses this system is the stand-by power supply energy storage system based on communication base station, other standby power system can certainly be used as UPS, the topological structure of ups system is different from the stand-by power supply energy storage system based on communication base station in the application, every standby power system that can realize battery pack parallel connection use all can use, be not limited to ups system and the stand-by power supply energy storage system based on communication base station.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
The system that a kind of battery pack parallel connection provided the application above uses is described in detail, apply specific case herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (7)
1. a system for battery pack parallel connection use, it is characterized in that, this system comprises:
Distribution box, high frequency switch power, the first parallel module, the second parallel module, the first batteries, the second batteries and battery management module BMS;
Described first parallel module comprises the first current limliting module, and described second parallel module comprises the second current limliting module;
The input of described distribution box is connected with electric main, and the first output of described distribution box is connected by the input of A.C. contactor with described high frequency switch power, and the second output of described distribution box is connected with AC electric equipment;
First output of described high frequency switch power is connected with described second parallel module with described first parallel module respectively, and the second output of described high frequency switch power is connected with direct-flow electricity utilization apparatus;
Described battery management module BMS is connected with described second batteries respectively with described A.C. contactor, described first parallel module, described second parallel module and described first batteries.
2. system according to claim 1, is characterized in that, described first parallel module comprises:
Three parallel branches, are respectively the first current limliting module branch road, the first D.C. contactor branch road and the first diode branch;
Described first diode branch comprises:
First diode and the first normally closed gate-controlled switch.
3. system according to claim 1, is characterized in that, described second parallel module comprises:
Three parallel branches, are respectively the second current limliting module branch road, the second D.C. contactor branch road and the second diode branch;
Described second diode branch comprises:
Second diode and the second normally closed gate-controlled switch.
4. system according to claim 1, is characterized in that, described battery management module BMS comprises:
First battery strings administrative unit BCU1, the second battery strings administrative unit BCU2 and battery bunch management of charging and discharging unit B MU;
Described first battery strings administrative unit BCU1 is connected with described first batteries with described battery bunch management of charging and discharging unit B MU respectively, and described second battery strings administrative unit BCU2 is connected with described second batteries with a described battery bunch management of charging and discharging power supply BMU respectively.
5. system according to claim 4, is characterized in that, described battery management module BMS also comprises transducer, and described transducer comprises: voltage sensor, current sensor and temperature sensor.
6. system according to claim 1, is characterized in that, also comprises:
First fuse, the first end of described first fuse is connected with described high frequency switch power, and the second end of described first fuse is connected with described first parallel module.
7. system according to claim 1, is characterized in that, also comprises:
Second fuse, the first end of described second fuse is connected with described high frequency switch power, and the second end of described second fuse is connected with described second parallel module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520056635.3U CN204481504U (en) | 2015-01-27 | 2015-01-27 | The system that a kind of battery pack parallel connection uses |
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| CN201520056635.3U CN204481504U (en) | 2015-01-27 | 2015-01-27 | The system that a kind of battery pack parallel connection uses |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119361A (en) * | 2015-09-10 | 2015-12-02 | 北京动力源科技股份有限公司 | Cell combiner and DC power system therewith |
| CN106712245A (en) * | 2015-07-21 | 2017-05-24 | 中国移动通信集团设计院有限公司 | Switching power supply system, frame and control method |
| CN107465225A (en) * | 2017-08-03 | 2017-12-12 | 北京优尔良科技发展有限公司 | A kind of batteries online management system |
| CN110266030A (en) * | 2019-06-13 | 2019-09-20 | 中国铁塔股份有限公司 | A kind of control device and control method |
-
2015
- 2015-01-27 CN CN201520056635.3U patent/CN204481504U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712245A (en) * | 2015-07-21 | 2017-05-24 | 中国移动通信集团设计院有限公司 | Switching power supply system, frame and control method |
| CN106712245B (en) * | 2015-07-21 | 2023-10-27 | 中国移动通信集团设计院有限公司 | Switching power supply system, rack and control method |
| CN105119361A (en) * | 2015-09-10 | 2015-12-02 | 北京动力源科技股份有限公司 | Cell combiner and DC power system therewith |
| CN107465225A (en) * | 2017-08-03 | 2017-12-12 | 北京优尔良科技发展有限公司 | A kind of batteries online management system |
| CN110266030A (en) * | 2019-06-13 | 2019-09-20 | 中国铁塔股份有限公司 | A kind of control device and control method |
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