CN206471441U - The low-power consumption BMS that a kind of band communication wakes up - Google Patents
The low-power consumption BMS that a kind of band communication wakes up Download PDFInfo
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- CN206471441U CN206471441U CN201720173719.4U CN201720173719U CN206471441U CN 206471441 U CN206471441 U CN 206471441U CN 201720173719 U CN201720173719 U CN 201720173719U CN 206471441 U CN206471441 U CN 206471441U
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- 238000004891 communication Methods 0.000 title claims abstract description 31
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 230000037007 arousal Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
Classifications
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses the low-power consumption BMS that a kind of band communication wakes up, including battery management IC, MCU, power module, charging detecting model, load detecting module and temperature sampling module, also include switch wake module and CAN, the battery management IC connects charging detecting model, battery pack, current sample module, MCU and temperature sampling module respectively, and the beneficial effects of the utility model are：1st, it with communication arousal function, can greatly improve the safety coefficient of battery.2nd, using CAN communication, LAN can be constituted with main frame.3rd, power consumption can greatly be reduced by choosing low-power consumption MCU.
Description
Technical field
The utility model is related to a kind of battery technology, the low-power consumption BMS that specifically a kind of band communication wakes up.
Background technology
In the last few years, due to environmental pollution and energy crisis, occur in that using clean environment firendly, the saving energy as the new of advantage
Electric automobile, its main energetic is provided by electrokinetic cell.However, electrokinetic cell has danger, so we are carried using BMS
Its high safety coefficient, it is not in overvoltage to make battery, crosses and puts, excessively stream, short-circuit situation, and increases communication function, is carried out
Inside and outside communicates, and uses low-power chip, three kinds of low power mode of operation.
Utility model content
The purpose of this utility model is the low-power consumption BMS that a kind of band communication simple in construction, easy to use of offer wakes up,
To solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
The low-power consumption BMS that a kind of communication of band wakes up, including it is battery management IC, MCU, power module, charging detecting model, negative
Detection module and temperature sampling module, in addition to switch wake module and CAN are carried, the battery management IC connects respectively
Charging detecting model, battery pack, current sample module, MCU and temperature sampling module are connect, MCU is also respectively connected with load detecting mould
Block, power module, charging detecting model and CAN, CAN are also connected with power module, and power module also divides
Other connecting valve wake module and charging detecting model, switch wake module is also respectively connected with charging detecting model and outside is opened
Close.
It is used as preferred scheme of the present utility model：The CAN includes external device communication CAN interface J14, light
Coupling U35, diode D24 and resistance R25, the external device communication CAN interface J14 one end connection resistance R25 and reactor
L1 pin 1, the external device communication CAN interface J14 other end linked reactor L1 pin 3, diode D24 and photo-coupler
Sent out inside the negative electrode of U35 interior light emitting diodes, the resistance R25 other end connection diode D24 negative electrode and photo-coupler U35
Inside the anode of optical diode, photo-coupler U35 photosensitive three inside colelctor electrode the connection MCU, photo-coupler U35 of phototriode
The grounded emitter of pole pipe.
It is used as preferred scheme of the present utility model：The switch wake module includes metal-oxide-semiconductor U36, metal-oxide-semiconductor U38 and two poles
Pipe D25, metal-oxide-semiconductor U36 source electrode connection resistance R22 and power supply VCC, metal-oxide-semiconductor U36 grid connection resistance the R22 other end and
Resistance R46, resistance the R46 other end connection metal-oxide-semiconductor U38 drain electrode, metal-oxide-semiconductor U36 drain electrode connection diode D25 anode,
Diode D28 anode and diode D30 anode, metal-oxide-semiconductor U38 grid connection resistance R108 and resistance R51, resistance R108
The other end connection MCU, resistance R51 other end connection metal-oxide-semiconductor U38 source electrode.
Compared with prior art, the beneficial effects of the utility model are：1st, with communication arousal function, battery can be made
Safety coefficient is greatly improved.2nd, using CAN communication, LAN can be constituted with main frame.3rd, choosing low-power consumption MCU can be significantly
Reduction power consumption.
Brief description of the drawings
Fig. 1 is overall block diagram of the present utility model.
Fig. 2 is the circuit diagram of CAN of the present utility model.
Fig. 3 is the circuit diagram of the present utility model for switching wake module.
Fig. 4 is workflow diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-4, the low-power consumption BMS that a kind of band communication wakes up, including battery management IC, MCU, power module, fill
Electro-detection module, load detecting module and temperature sampling module, in addition to switch wake module and CAN, the electricity
Pond management IC connects charging detecting model, battery pack, current sample module, MCU and temperature sampling module respectively, and MCU also distinguishes
Load detecting module, power module, charging detecting model and CAN are connected, CAN is also connected with power supply mould
Block, power module is also respectively connected with switch wake module and charging detecting model, and switch wake module is also respectively connected with charging inspection
Survey module and external switch.
CAN includes external device communication CAN interface J14, optocoupler U35, diode D24 and resistance R25, described
External device communication CAN interface J14 one end connects resistance R25 and reactor L1 pin 1, external device communication CAN interface J14
Other end linked reactor L1 pin 3, the negative electrode of diode D24 and photo-coupler U35 interior light emitting diodes, resistance R25
Other end connection diode D24 negative electrode and the anode of photo-coupler U35 interior light emitting diodes, inside photo-coupler U35
The grounded emitter of phototriode inside colelctor electrode the connection MCU, photo-coupler U35 of phototriode.
Switching wake module includes metal-oxide-semiconductor U36, metal-oxide-semiconductor U38 and diode D25, metal-oxide-semiconductor U36 source electrode connection resistance
R22 and power supply VCC, metal-oxide-semiconductor U36 grid connection resistance the R22 other end and resistance R46, resistance R46 other end connection
Metal-oxide-semiconductor U38 drain electrode, metal-oxide-semiconductor U36 drain electrode connects diode D25 anode, diode D28 anode and diode D30
Anode, metal-oxide-semiconductor U38 grid connection resistance R108 and resistance R51, resistance R108 other end connection MCU, resistance R51's is another
One end connection metal-oxide-semiconductor U38 source electrode.
Operation principle of the present utility model is：The utility model passes through sample circuit using control losing side case, battery protection ic
Cell voltage is monitored, and controls the output of battery, carrying out communication by I2C and MCU informs battery status, low-power consumption
MCU is controlled to battery protection ic.
Battery control is born：BMS has the negative two schemes of the positive control of control, and the utility model is using control losing side case, using metal-oxide-semiconductor to battery
Negative terminal is controlled, by controlling the switch of metal-oxide-semiconductor to control the break-make of battery.Concretely comprise the following steps：Battery protection ic is being read
After the state of battery, if can normally cause metal-oxide-semiconductor to open, so as to form loop；If reading state is abnormal, metal-oxide-semiconductor
Close, form open circuit, battery is protected.
CAN communication：The utility model uses CAN communication, is MCU and outside communication, with real-time, transmission range
Farther out, anti-electromagnetic interference capability it is strong, with priority and arbitration function, be suspended to by CAN controller on CAN-bus, form master
Machine LAN, with reliable error handle and error-detection mechanism, after the information of transmission is destroyed, can resend, always
It, integrates advantage.
Low-power consumption MCU：The MCU that the utility model is used is the product of ST companies, and operating voltage is 3.3V, low with three kinds
Power consumption mode of operation：Only have MCU to be stopped under sleep pattern, ancillary equipment normal work is, it is necessary to call out MCU during MCU
Wake up and operate；The normal operation of SRAM and register can be ensured under battery saving mode with minimum electric quantity consumption, clock stops work
Make, can be waken up；Do not work, can be waken up substantially inside MCU under standby mode.
The operation principle of CAN communication circuit is：J14 is to pass through the interface with external device communication CAN interface, external equipment
Interacted with BMS.When external equipment, request data does not exceed certain time, and BMS will be automatically into low power sleep mode.When
When external equipment needs to obtain the data of BMS samplings, it will send wake-up data frame first by CAN interface, now optocoupler U35
3rd, 4 pin will be turned on, and 4 pin level are changed into low level, and MCU is detected and returned to normal work from low-power consumption mode after the level
Pattern, it is achieved thereby that being waken up with communication and low-power consumption function.
Switching the operation principle of wake module is：When MCU recognizes wake-up signal, MCU will pass through MCU_POWER_CTL
Pin is set to low level, so as to turn off battery management module circuit（Include battery voltage acquisition, current acquisition, battery temperature
Detection, SOC are calculated）, detection module circuit（Include load detecting, charging detection）, control module circuit powers（Include major loop
Switch drive）, circuit power consumption is greatly reduced, at the same time MCU main control chips itself will enter low-power consumption mode, further
Reduce system power dissipation.
Claims (3)
1. the low-power consumption BMS that a kind of band communication wakes up, including battery management IC, MCU, power module, charging detecting model, load
Detection module and temperature sampling module, it is characterised in that also including switch wake module and CAN, the cell tube
Reason IC connects charging detecting model, battery pack, current sample module, MCU and temperature sampling module respectively, and MCU is also respectively connected with
Load detecting module, power module, charging detecting model and CAN, CAN are also connected with power module, electricity
Source module is also respectively connected with switch wake module and charging detecting model, and switch wake module is also respectively connected with charging detecting model
And external switch.
2. the low-power consumption BMS that a kind of band communication according to claim 1 wakes up, it is characterised in that the CAN
Including external device communication CAN interface J14, optocoupler U35, diode D24 and resistance R25, the external device communication CAN interface
J14 one end connects resistance R25 and reactor L1 pin 1, external device communication CAN interface J14 other end linked reactor
The negative electrode of L1 pin 3, diode D24 and photo-coupler U35 interior light emitting diodes, resistance R25 other end connection diode
The colelctor electrode of phototriode inside D24 negative electrode and the anode of photo-coupler U35 interior light emitting diodes, photo-coupler U35
Connect the grounded emitter of phototriode inside MCU, photo-coupler U35.
3. the low-power consumption BMS that a kind of band communication according to claim 1 wakes up, it is characterised in that the switch wakes up mould
Block includes metal-oxide-semiconductor U36, metal-oxide-semiconductor U38 and diode D25, metal-oxide-semiconductor U36 source electrode connection resistance R22 and power supply VCC, metal-oxide-semiconductor
The U36 grid connection resistance R22 other end and resistance R46, resistance R46 other end connection metal-oxide-semiconductor U38 drain electrode, metal-oxide-semiconductor
U36 drain electrode connects the anode of diode D25 anode, diode D28 anode and diode D30, metal-oxide-semiconductor U38 grid
Connect resistance R108 and resistance R51, resistance the R108 other end connection MCU, resistance the R51 other end connection metal-oxide-semiconductor U38 source
Pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720173719.4U CN206471441U (en) | 2017-02-26 | 2017-02-26 | The low-power consumption BMS that a kind of band communication wakes up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720173719.4U CN206471441U (en) | 2017-02-26 | 2017-02-26 | The low-power consumption BMS that a kind of band communication wakes up |
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| Publication Number | Publication Date |
|---|---|
| CN206471441U true CN206471441U (en) | 2017-09-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769299A (en) * | 2017-09-26 | 2018-03-06 | 苏州英诺威新能源有限公司 | Super low-power consumption lithium battery administrative unit, application system in parallel and parallel operation method |
| CN109950649A (en) * | 2019-04-19 | 2019-06-28 | 惠州市盛微电子有限公司 | Power source active circuit for battery management system |
| CN110609508A (en) * | 2019-10-17 | 2019-12-24 | 国家康复辅具研究中心 | CAN communication awakening-based standby zero-power-consumption wheelchair control system and method |
-
2017
- 2017-02-26 CN CN201720173719.4U patent/CN206471441U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769299A (en) * | 2017-09-26 | 2018-03-06 | 苏州英诺威新能源有限公司 | Super low-power consumption lithium battery administrative unit, application system in parallel and parallel operation method |
| CN109950649A (en) * | 2019-04-19 | 2019-06-28 | 惠州市盛微电子有限公司 | Power source active circuit for battery management system |
| CN109950649B (en) * | 2019-04-19 | 2024-04-05 | 惠州市盛微电子有限公司 | Power activation circuit for battery management system |
| CN110609508A (en) * | 2019-10-17 | 2019-12-24 | 国家康复辅具研究中心 | CAN communication awakening-based standby zero-power-consumption wheelchair control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180614 Address after: 710065 MEIKO room 14, 110, 12 Jinye Road, hi tech Zone, Xi'an, Shaanxi. Patentee after: Xi'an Nova Electronic Technology Co., Ltd. Address before: 100037 A-1741 2, 3 building, 30 Shixing street, Shijingshan District, Beijing. Patentee before: Beijing nuowan Electronic Technology Co. Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Low -power consumption BMS that band -pass letter awaken up Effective date of registration: 20191017 Granted publication date: 20170905 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Nova Electronic Technology Co., Ltd. Registration number: Y2019990000349 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200921 Granted publication date: 20170905 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: Xi'an Nova Electronic Technology Co.,Ltd. Registration number: Y2019990000349 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low power BMS with wake-up communication Effective date of registration: 20200927 Granted publication date: 20170905 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: Xi'an Nova Electronic Technology Co.,Ltd. Registration number: Y2020610000164 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211009 Granted publication date: 20170905 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: Xi'an Nova Electronic Technology Co.,Ltd. Registration number: Y2020610000164 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low power BMS with communication wake-up Effective date of registration: 20211011 Granted publication date: 20170905 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: Xi'an Nova Electronic Technology Co.,Ltd. Registration number: Y2021610000257 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |