CN205544400U - Battery management system of low -power consumption standby - Google Patents

Battery management system of low -power consumption standby Download PDF

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Publication number
CN205544400U
CN205544400U CN201620096610.0U CN201620096610U CN205544400U CN 205544400 U CN205544400 U CN 205544400U CN 201620096610 U CN201620096610 U CN 201620096610U CN 205544400 U CN205544400 U CN 205544400U
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module
power
communication
battery management
input
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CN201620096610.0U
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徐文赋
任素云
杨宇帮
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Huizhou Blueway New Energy Technology Co Ltd
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Huizhou Blueway New Energy Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model discloses a battery management system of low -power consumption standby, include: power supply, keep apart power module, communication module, communication bus, the module is kept apart in the communication, control center, power switch module and communication bus level detection module, control center makes the power switch module disconnection when the battery management system standby, the communication bus level detection module detects communication bus's level signal, changing then as if the level signal who detects communication bus, output awakens signal to control center up, control center received and awakens the signal up and then awaken battery management system up, and switch on power switch module. Break off when the battery management system standby through power switch module, make power isolation module, communication module and communication isolation module in battery management system standby electric dormancy at present, reduce battery management system's stand -by power consumption, the stand -by time of extension battery.

Description

The battery management system of low-power consumption standby
Technical field
This utility model relates to battery management system technical field, more specifically, relates to a kind of low-power consumption Standby battery management system.
Background technology
Battery management system (BATTERY MANAGEMENT SYSTEM, BMS) needs externally to send data, Therefore can be with communication modules such as CAN, RS485.And communication module current supply circuit typically can be with battery management system In system system, other circuit module is isolated.Also need to isolation also has power module simultaneously.In order to ensure The communication of battery management system is normal, though under battery management system during electricity dormancy communication module can not under Electricity.Therefore power isolation module, communication module and communication isolation module etc. need to be constantly in work on power State, the stand-by power consumption causing management system is big, shortens the stand-by time of battery.
Utility model content
The purpose of this utility model is to overcome drawbacks described above of the prior art, it is provided that a kind of low-power consumption standby Battery management system.
For achieving the above object, the technical scheme that this utility model provides is as follows:
A kind of battery management system of low-power consumption standby, including: power supply, insulating power supply module, communication Module, communication bus, communication isolation module and control centre, also include power switching module and communication bus Level detection module, the outfan of described power supply is connected with the input of power switching module, power supply is opened Close module outfan be connected with the input of power isolation module, the outfan of power isolation module respectively with The energization input of communication module and the energization input of communication isolation module connect, and described communication module is respectively Being connected with communication bus and communication isolation module signal, communication isolation module is connected with control centre signal, logical News bus is also connected with communication bus level detection module signal, in communication bus level detection module and control Heart signal connects, and the power input of described control centre is connected with power supply outfan, and described power supply is opened The input control end closing module is connected with the output control terminal of control centre, in the standby time control of battery management system Center processed makes power switching module disconnect, the level signal of communication bus level detection module detection communication bus, If detecting, the level signal of communication bus changes, and output wake-up signal is to control centre, control centre Receive wake-up signal and then wake up battery management system, and turn-on power switch module up.
As preferred embodiment, described power switching module includes gate-controlled switch device.
As preferred embodiment, described gate-controlled switch device uses p-type metal-oxide-semiconductor Q1, and described power supply is opened Close resistance R1, p-type metal-oxide-semiconductor Q1 that module also includes being connected across between grid and the source electrode of p-type metal-oxide-semiconductor Q1 Grid be connected with the outfan of power supply as the input of power switching module, p-type metal-oxide-semiconductor Q1's Source electrode is connected with the output control terminal of control centre as the input control end of power switching module, p-type metal-oxide-semiconductor The drain electrode of Q1 is connected with the input of power isolation module as the outfan of power switching module.
As preferred embodiment, described gate-controlled switch device uses PNP triode Q2, and described power supply is opened Close the resistance R2 that module also includes being connected across between the base stage of PNP triode and emitter stage, PNP triode Q2 Base stage be connected with the outfan of power supply as the input of power switching module, PNP triode Q2 Emitter stage is connected with the output control terminal of control centre as the input control end of power switching module, PNP tri-pole The colelctor electrode of pipe Q2 is connected with the input of power isolation module as the outfan of power switching module.
As preferred embodiment, described communication bus level detection module is passive circuit module or little merit Rate active circuit module.
As preferred embodiment, described communication bus level detection module uses communication isolating device.
As preferred embodiment, described communication isolating device is optocoupler U1.
As preferred embodiment, described communication bus level detection module also includes current-limiting resistance R3, light It is respectively connected to communication bus after the negative input of coupling device U1 and electrode input end series limiting resistor R3 Two interfaces, the cathode output end of optocoupler U1 is connected with control centre signal, cathode output end ground connection.
As preferred embodiment, described control centre is one-chip computer module.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model is disconnected when battery management system is standby by power switching module, make power supply every From module, communication module and communication isolation module in the standby electricity dormancy at present of battery management system, reduce electricity The stand-by power consumption of pond management system, extends the stand-by time of battery.
(2) this utility model detects logical by communication bus level detection module when battery management system is standby The level change of news bus, if detecting, the level signal of communication bus changes, and output wake-up signal arrives Control centre, control centre wakes up battery management system, and turn-on power switch module up, it is achieved battery management The normal work of system, it is achieved low cost.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below, Accompanying drawing in description is embodiments more of the present utility model, for those of ordinary skill in the art, On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the theory diagram of the battery management system of low-power consumption standby in embodiment 1;
Fig. 2 is the schematic diagram of communication bus level detection module in embodiment 1;
Fig. 3 is the schematic diagram of power switching module in embodiment 1;
Fig. 4 is the schematic diagram of communication bus level detection module in embodiment 2.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with this Accompanying drawing in utility model embodiment, carries out clear, complete to the technical scheme in this utility model embodiment Ground describes, it is clear that described embodiment is a part of embodiment of this utility model rather than whole realities Execute example.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under dynamic premise, broadly falls into the scope of this utility model protection.
Embodiment 1
Embodiment 1 of the present utility model provides the battery management system of a kind of low-power consumption standby.With reference to Fig. 1, The battery management system of described low-power consumption standby includes: power supply, insulating power supply module, communication module, Communication bus, communication isolation module, control centre, power switching module and communication bus level detection module. The outfan of described power supply is connected with the input of power switching module, the outfan of power switching module Be connected with the input of power isolation module, the outfan of power isolation module respectively with the power supply of communication module The energization input of input and communication isolation module connects, described communication module respectively with communication bus and leading to News isolation module signal connects, and communication isolation module is connected with control centre signal, communication bus also with communication Bus level detection module signal connects, and communication bus level detection module is connected with control centre signal, institute The power input stating control centre is connected with power supply outfan, the input control of described power switching module End processed is connected with the output control terminal of control centre, and when battery management system is standby, control centre makes power supply open Pass module disconnects, and the level signal of communication bus level detection module detection communication bus, if detecting communication The level signal of bus changes then, and output wake-up signal is to control centre, and control centre receives and wakes up letter up Number then wake up battery management system, and turn-on power switch module up.In the present embodiment, described control centre For one-chip computer module.
Described communication bus level detection module be passive circuit module or power consumption much smaller than power isolation module, The active circuit module of communication module and communication isolation module.In the present embodiment, described communication bus level Detection module uses communication isolating device.With reference to Fig. 2, described communication isolating device is optocoupler U1.Make For preferred embodiment, described communication bus level detection module also includes current-limiting resistance R3, optocoupler Input IN-1 and negative input IN-2 after electrode input end series limiting resistor R3 of U1 are respectively connected to Two interfaces of communication bus, the cathode output end OUT of optocoupler U1 is connected with control centre signal, negative Pole output head grounding GND.If communication bus receives the data signal of external equipment, communication bus input Level produces change, when communication bus fan-in IN-1 is high level, inputs negative input IN-2 During for low level, optocoupler U1 turns on, then optocoupler U1 outfan OUT output low level is to controlling Center;When communication bus fan-in IN-1 is low level, input negative input IN-2 is high level Time, optocoupler U1 is not turned on, then optocoupler U1 outfan OUT output high-impedance state is to control centre, Control centre detect communication bus level detection module input between low level and high-impedance state change wake up up Battery management system is waken up up after signal, and by output control terminal output Guan Bi control signal on and off switch mould Block.
Described power switching module includes gate-controlled switch device.With reference to Fig. 3, as preferred embodiment, institute Stating gate-controlled switch device and use p-type metal-oxide-semiconductor Q1, described power switching module also includes being connected across p-type MOS Resistance R1 between grid and the source electrode of pipe Q1.The grid of described p-type metal-oxide-semiconductor Q1 is as on and off switch mould The input of block is connected with the outfan of power supply, and the source electrode of p-type metal-oxide-semiconductor Q1 is as power switching module Input control end be connected with the output control terminal of control centre, the drain electrode of p-type metal-oxide-semiconductor Q1 is opened as power supply The outfan closing module is connected with the input of power isolation module.When battery management system is in standby, Control centre is by the grid of output control terminal output high-level control signal to p-type metal-oxide-semiconductor Q1, p-type MOS Pipe Q1 ends, and power switching module non-transformer exports, therefore described insulating power supply module, communication module, communication The all lower electricity of isolation module.When battery management system is waken up, control centre exports low by output control terminal Level controling signal turns on to the grid of p-type metal-oxide-semiconductor Q1, p-type metal-oxide-semiconductor Q1, and power switching module has electricity Source exports, therefore described insulating power supply module, communication module, communication isolation module are both powered up normally working, electricity Pond management system carries out data interaction with communication bus.Wherein the data of communication bus can through communication module, Communication isolation module is transferred in control centre, the data of control centre can also through communication isolation module, Communication module is transferred in communication bus.
This utility model is disconnected when battery management system is standby by power switching module, makes isolated from power mould Block, communication module and communication isolation module, in the standby electricity dormancy at present of battery management system, reduce cell tube The stand-by power consumption of reason system, extends the stand-by time of battery.Additionally, by communication bus level detection module The level change of communication bus is detected, if the level letter of communication bus being detected when battery management system is standby Number changing then, output wake-up signal is to control centre, and control centre wakes up battery management system up, and turns on Power switching module, it is achieved the normal work of battery management system, it is achieved low cost.
Embodiment 2
Embodiment 2 of the present utility model provides the battery management system of a kind of low-power consumption standby.With reference to Fig. 4, The present embodiment is as described below with the distinguishing characteristics of embodiment 1:
Described gate-controlled switch device uses PNP triode Q2.Described power switching module also includes being connected across PNP Resistance R2 between base stage and the emitter stage of audion, the base stage of PNP triode Q2 is as power switching module Input be connected with the outfan of power supply, the emitter stage of PNP triode Q2 is as power switching module Input control end be connected with the output control terminal of control centre, the colelctor electrode of PNP triode Q2 is as power supply The outfan of switch module is connected with the input of power isolation module.
At this it should be noted that one of ordinary skill in the art will appreciate that and realize in above-described embodiment method All or part of step can be by program and complete to instruct relevant hardware, described program is permissible In being stored in a computer read/write memory medium, described storage medium, such as ROM/RAM, disk, light Dish etc..
Above-described embodiment is this utility model preferably embodiment, but embodiment of the present utility model is not Being restricted to the described embodiments, any of other is made without departing from spirit of the present utility model and principle are lower Change, modify, substitute, combine, simplify, all should be the substitute mode of equivalence, be included in this practicality Within novel protection domain.

Claims (9)

1. the battery management system of a low-power consumption standby, it is characterised in that including: power supply, isolation Power module, communication module, communication bus, communication isolation module and control centre, also include on and off switch Module and communication bus level detection module, the outfan of described power supply and the input of power switching module End connects, the outfan of power switching module is connected with the input of power isolation module, power isolation module Outfan be connected with the energization input of communication module and the energization input of communication isolation module respectively, institute State communication module to be connected with communication bus and communication isolation module signal respectively, in communication isolation module and control Heart signal connects, and communication bus is also connected with communication bus level detection module signal, and communication bus level is examined Survey module to be connected with control centre signal, the power input of described control centre and power supply outfan company Connecing, the input of described power switching module controls end and is connected with the output control terminal of control centre, at cell tube During reason system standby, control centre makes power switching module disconnect, the detection communication of communication bus level detection module The level signal of bus, if detecting, the level signal of communication bus changes, and output wake-up signal is to control Center processed, control centre receives wake-up signal and then wakes up battery management system, and turn-on power switch module up.
The battery management system of low-power consumption standby the most according to claim 1, it is characterised in that described Power switching module includes gate-controlled switch device.
The battery management system of low-power consumption standby the most according to claim 2, it is characterised in that described Gate-controlled switch device uses p-type metal-oxide-semiconductor Q1, and described power switching module also includes being connected across p-type MOS Resistance R1 between grid and the source electrode of pipe Q1, the grid of p-type metal-oxide-semiconductor Q1 is as power switching module Input be connected with the outfan of power supply, the source electrode of p-type metal-oxide-semiconductor Q1 is as power switching module Input control end be connected with the output control terminal of control centre, the drain electrode of p-type metal-oxide-semiconductor Q1 is as power supply The outfan of switch module is connected with the input of power isolation module.
The battery management system of low-power consumption standby the most according to claim 2, it is characterised in that described Gate-controlled switch device uses PNP triode Q2, and described power switching module also includes being connected across PNP tri-pole Resistance R2 between base stage and the emitter stage of pipe, the base stage of PNP triode Q2 is as power switching module Input is connected with the outfan of power supply, and the emitter stage of PNP triode Q2 is as power switching module Input controls end and is connected with the output control terminal of control centre, and the colelctor electrode of PNP triode Q2 is opened as power supply The outfan closing module is connected with the input of power isolation module.
The battery management system of low-power consumption standby the most according to claim 1, it is characterised in that described Communication bus level detection module is passive circuit module or small-power active circuit module.
The battery management system of low-power consumption standby the most according to claim 5, it is characterised in that described Communication bus level detection module uses communication isolating device.
The battery management system of low-power consumption standby the most according to claim 6, it is characterised in that described Communication isolating device is optocoupler U1.
The battery management system of low-power consumption standby the most according to claim 7, it is characterised in that described Communication bus level detection module also includes current-limiting resistance R3, the negative input of optocoupler U1 and positive pole Two interfaces of communication bus, the positive pole of optocoupler U1 it is respectively connected to after input series limiting resistor R3 Outfan is connected with control centre signal, cathode output end ground connection.
9., according to the battery management system of the low-power consumption standby described in any one of claim 1-8, its feature exists In, described control centre is one-chip computer module.
CN201620096610.0U 2016-01-29 2016-01-29 Battery management system of low -power consumption standby Active CN205544400U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703021A (en) * 2016-01-29 2016-06-22 惠州市蓝微新源技术有限公司 Battery management system with low standby power consumption and battery management system awaking method
CN107919700A (en) * 2017-11-27 2018-04-17 中山市电赢科技有限公司 A kind of control method of back-pack electric instrument intelligent power
CN108695566A (en) * 2017-04-05 2018-10-23 广东广晟通信技术有限公司 A kind of synchronous control system framework promoting energy-saving efficiency
US10363825B2 (en) 2017-01-26 2019-07-30 Borgward Trademark Holdings Gmbh Method, battery management system and vehicle for charging awakening
CN110077275A (en) * 2019-04-23 2019-08-02 上海电气集团股份有限公司 A kind of slave control circuit of energy storage battery management system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703021A (en) * 2016-01-29 2016-06-22 惠州市蓝微新源技术有限公司 Battery management system with low standby power consumption and battery management system awaking method
CN105703021B (en) * 2016-01-29 2018-03-16 惠州市蓝微新源技术有限公司 The battery management system and battery management system awakening method of low-power consumption standby
US10363825B2 (en) 2017-01-26 2019-07-30 Borgward Trademark Holdings Gmbh Method, battery management system and vehicle for charging awakening
CN108695566A (en) * 2017-04-05 2018-10-23 广东广晟通信技术有限公司 A kind of synchronous control system framework promoting energy-saving efficiency
CN107919700A (en) * 2017-11-27 2018-04-17 中山市电赢科技有限公司 A kind of control method of back-pack electric instrument intelligent power
CN110077275A (en) * 2019-04-23 2019-08-02 上海电气集团股份有限公司 A kind of slave control circuit of energy storage battery management system

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