CN111697655A - Electrochemical device and battery charge-discharge control system - Google Patents
Electrochemical device and battery charge-discharge control system Download PDFInfo
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- CN111697655A CN111697655A CN202010561548.9A CN202010561548A CN111697655A CN 111697655 A CN111697655 A CN 111697655A CN 202010561548 A CN202010561548 A CN 202010561548A CN 111697655 A CN111697655 A CN 111697655A
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- sensor
- electrochemical device
- microcontroller
- detection signal
- switch module
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the application provides an electrochemical device, including electric core unit and battery management unit, battery management unit includes first sensor, switch module and microcontroller. The first sensor is arranged at a first position in the electrochemical device and used for detecting the change of a magnetic field of external equipment, the switch module is electrically connected with the battery cell unit and a power supply loop of the external equipment, and the microcontroller is electrically connected between the switch module and the first sensor. When the first sensor detects the change of the magnetic field, a first detection signal is output to the microcontroller, and the microcontroller outputs a first control signal to the switch module so as to control the battery cell unit to enter a first state. The application also provides a battery charge and discharge control system. Therefore, the electrochemical device and the battery charging and discharging control system provided by the embodiment of the application can save wiring harness ports, simplify control logic, and have controllable cost and high reliability.
Description
Technical Field
The present application relates to an electrochemical device and a battery charge/discharge control system.
Background
In the prior art, the state of the battery pack is generally recognized by an external wire harness, a key or a wireless communication mode. However, the cost of the wire harness and the connector is high, the key mode is limited by the restriction of the structural design or the protection design, the mechanical life is limited, the reliability is low, the cost of the wireless communication mode is high, and the complex software strategy is required for supporting.
Disclosure of Invention
Accordingly, there is a need for an electrochemical device and a battery charging/discharging control system. The electrochemical device and the battery charging and discharging control system provided by the embodiment of the application can save wiring harness ports, simplify control logic, and have controllable cost and high reliability.
An embodiment of the present application provides an electrochemical device, including a battery cell unit and a battery management system, the battery management system includes: the system comprises a first sensor, a switch module and a microcontroller; the first sensor is arranged in the electrochemical device and used for detecting the change of the magnetic field of external equipment; the switch module is electrically connected with the battery cell unit and a power supply loop of external equipment; the microcontroller is electrically connected between the switch module and the first sensor; and when the first sensor detects the change of the magnetic field, outputting a first detection signal to the microcontroller, and outputting a first control signal to the switch module by the microcontroller so as to control the battery cell unit to enter a first state.
According to some embodiments of the present application, the battery management system further comprises a second sensor for detecting a change in a magnetic field of the external device.
According to some embodiments of the present application, when the second sensor detects a change in the magnetic field, a second detection signal is output to the microcontroller, and the microcontroller outputs a second control signal to the switch module to control the battery cell unit to enter the second state.
According to some embodiments of the present application, the battery management unit further includes a first conditioning circuit electrically connected between the first sensor and the microcontroller for rectifying and filtering the first detection signal output by the first sensor.
According to some embodiments of the present application, the battery management unit further includes a second conditioning circuit electrically connected between the second sensor and the microcontroller for rectifying and filtering the second detection signal output by the second sensor.
According to some embodiments of the present application, the external device includes a magnetic member, and the first sensor and the second sensor are configured to detect the magnetic member.
According to some embodiments of the present application, when the external device is a charging device and is docked with the electrochemical device, the magnetic member is close to the first sensor, the first sensor detects an increase in magnetic flux and sends the first detection signal, and the first detection signal is a logic high level signal.
According to some embodiments of the present application, when the external device is a powered device and is docked with the electrochemical device, the magnetic member is close to the second sensor, the second sensor detects an increase in magnetic flux and sends the second detection signal, and the second detection signal is a logic low level signal.
According to some embodiments of the present application, the first sensor and the second sensor are both hall sensors.
According to some embodiments of the present application, the first sensor is disposed at a first location within the electrochemical device and the second sensor is disposed at a second location within the electrochemical device.
The embodiment of the application also provides a battery charging and discharging control system, which comprises an external device and the electrochemical device, wherein the external device is electrically connected to the electrochemical device, and the external device comprises a charging device or a discharging device or a maintenance device.
According to the electrochemical device and the battery charge and discharge control system provided by the embodiment of the application, the first sensor and the second sensor are respectively arranged at two different positions in the electrochemical device, and the battery cell unit is controlled to enter different working states under the triggering of the magnetic part of the external equipment. The electrochemical device and the battery charging and discharging control system provided by the embodiment of the application can save wiring harness ports, simplify control logic, and have controllable cost and high reliability.
Drawings
Fig. 1 is a schematic diagram of a battery charge and discharge control system according to an embodiment of the present application.
Fig. 2 is a schematic view of an electrochemical device and an external apparatus according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of an electrochemical device and an external apparatus according to another embodiment of the present disclosure.
Fig. 4 is a schematic view of an electrochemical device and an external apparatus according to another embodiment of the present disclosure.
Fig. 5 is a schematic view of an electrochemical device and an external apparatus according to another embodiment of the present disclosure.
Description of the main elements
Battery charge and discharge control system 300
Switch module 13
First magnetic member 210
Second magnetic member 220
The following detailed description will explain the present application in further detail in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application.
Referring to fig. 1, a battery charging and discharging control system 300 is provided according to an embodiment of the present disclosure. The battery charge and discharge control system 300 includes an electrochemical device 100 and an external device 200, and the electrochemical device 100 is electrically connectable to the external device 200.
In some embodiments of the present application, the external device 200 includes a charging device or a discharging device or a maintenance device. The electrochemical device 100 may supply power to the external apparatus 200. That is, the electrochemical device 100 may provide power requirements for the operation of the external apparatus 200.
The external device 200 may also charge the electrochemical device 100.
Referring to fig. 2, in an embodiment of the present disclosure, the electrochemical device 100 may include a battery management system 10 and a cell unit 20.
The battery management system 10 is electrically connected to the cell unit 20, and is configured to control charging and discharging of the cell unit 20. The battery cell unit 20 is electrically connected between the battery management system 10 and the external device 200.
The battery management system 10 in the embodiment of the present application may include a first sensor 11, a second sensor 12, a switch module 13, and a microcontroller 14.
Specifically, in the embodiment of the present application, the switch module 13 is located in a power supply loop between the positive electrode of the battery cell unit 20 and the external device 200, the microcontroller 14 is electrically connected between the switch module 13 and the first sensor 11, and the microcontroller 14 is also electrically connected between the switch module 13 and the second sensor 12.
Specifically, the first sensor 11 and the second sensor 12 are respectively disposed at different positions of the electrochemical device 100. That is, the first sensor 11 is disposed at a first position in the housing of the electrochemical device 100, and the second sensor 12 is disposed at a second position in the housing of the electrochemical device 100. In the embodiment of the present application, the first sensor 11 and the second sensor 12 are both configured to detect a change in the magnetic field of the external device 200. That is, the first sensor 11 and the second sensor 12 are both used for detecting magnetic substances.
When the first sensor 11 detects a change in the magnetic field, it will output a first detection signal to the microcontroller 14, and the microcontroller 14 will output a first control signal to the switch module 13, so as to control the battery cell unit 20 to enter the charging state.
For example, when the external device 200 is a charging device, at this time, a first magnetic member 210 is disposed in a charging seat of the external device 200, and the first magnetic member 210 is disposed at a first position in the external device 200. When the electrochemical device 100 is in the sleep mode, the electrochemical device 100 is placed in the charging stand, the first sensor 11 is in a first position in the electrochemical device 100 and is in a first position in the external device 200, that is, the first sensor and the first magnetic member 210 can be close to each other, so that the first sensor 11 can detect the increase of the magnetic flux and send the first detection signal to the microcontroller 14. The microcontroller 14 outputs a first control signal to the switch module 13 after receiving the first detection signal, and then controls the electrochemical device 100 to enter a charging state through the switch module 13.
It is to be understood that the first detection signal in the embodiment of the present application is a logic high signal, and the first Sensor 11 is a Hall Sensor (Hall Sensor). The first sensor 11 has a detection range, and when the magnetic substance enters the detection range, the first sensor 11 can detect the change of the magnetic field.
Referring to fig. 3, when the second sensor 12 detects a change in the magnetic field, it will output a second detection signal to the microcontroller 14, and the microcontroller 14 will output a second control signal to the switch module 13, so as to control the battery cell unit 20 to enter a discharge state.
For example, when the external device 200 is an electric device, the second magnetic member 220 is disposed in the battery compartment of the external device 200, and the second magnetic member 220 is disposed at a second position in the external device 200. When the electrochemical device 100 is in the sleep mode, the electrochemical device 100 is placed in the battery compartment, the second sensor 12 is docked at a second position in the electrochemical device 100 with the second magnetic member 220 at a second position in the external device 200, that is, the second sensor and the second magnetic member 220 can approach each other, so that the second sensor 12 can detect the increase of the magnetic flux and send the second detection signal to the microcontroller 14. The microcontroller 14 outputs a second control signal to the switch module 13 after receiving the second detection signal, and then controls the electrochemical device 100 to enter a discharge state through the switch module 13.
It is to be understood that in the embodiment of the present application, the second detection signal is a logic low signal, and the second sensor 12 is a hall sensor. The second sensor 12 has a detection range, and when the magnetic substance enters the detection range, the second sensor 12 can detect the change of the magnetic field.
In the embodiment of the present application, the battery management unit 10 may further include a third sensor 15.
The third sensor 15 is electrically connected to the microcontroller 14, and the third sensor 15 is disposed at a third position in the housing of the electrochemical device 100. The third sensor 15 can send a third detection signal to the microcontroller 14 under the trigger of the external magnetic member, so as to perform maintenance detection and other operations on the electrochemical device 100. It is understood that the third sensor 15 may also be a hall sensor. The third sensor 15 has a detection range, and when the magnetic substance enters the detection range, the third sensor 15 can detect the change of the magnetic field.
Further, the battery management system 10 in the embodiment of the present application may further include a first conditioning circuit 16, a second conditioning circuit 17, and a third conditioning circuit 18.
The first conditioning circuit 16 is electrically connected between the first sensor 11 and the microcontroller 14. The first conditioning circuit 16 rectifies and filters the first detection signal transmitted by the first sensor 11, and transmits the rectified and filtered digital signal to the microcontroller 14.
The second conditioning circuit 17 is electrically connected between the second sensor 12 and the microcontroller 14. The second conditioning circuit 17 is configured to rectify and filter the second detection signal transmitted by the second sensor 12, and transmit the rectified and filtered digital signal to the microcontroller 14.
The third conditioning circuit 18 is electrically connected between the third sensor 15 and the microcontroller 14. The third conditioning circuit 18 is configured to rectify and filter the third detection signal transmitted by the third sensor 15, and transmit the rectified and filtered digital signal to the microcontroller 14.
Referring to fig. 4, in at least one exemplary embodiment, the first sensor 11 is disposed at a left position of the electrochemical device 100, the second sensor 12 is disposed at a right position of the electrochemical device 100, and a first magnetic member 210 is disposed in a charging device corresponding to the position of the first sensor 11. When the electrochemical device 100 is in the sleep mode, if the first magnetic member 210 of the charging apparatus enters the detection range of the first sensor 11 of the electrochemical device 100. The first sensor 11 detects a change in the magnetic field (i.e., an increase in magnetic flux) and transmits a detection signal to the microcontroller 14. At this time, the electrochemical device 100 is triggered, the electrochemical device 100 is awakened to enter a working state, and the switch module 13 receives a logic high level signal, so as to control the battery cell unit 20 to enter a charging state and perform a related process of a charging function.
Referring to fig. 5, in at least one exemplary embodiment, the first sensor 11 is disposed at a left position of the electrochemical device 100, the second sensor 12 is disposed at a right position of the electrochemical device 100, and a second magnetic member 220 is disposed in the electric device corresponding to the second sensor 12. When the electrochemical device 100 is in the sleep mode, if the second magnetic member 220 of the electric device enters the detection range of the second sensor 12 of the electrochemical device 100. The second sensor 12 detects the change in the magnetic field (i.e., the increase in magnetic flux) and sends a detection signal to the microcontroller 14. At this time, the electrochemical device 100 is triggered, the electrochemical device 100 is awakened to enter a working state, and the switch module 13 receives a logic low level signal, so as to control the battery cell unit 20 to enter a discharging state and perform a relevant process of a discharging function.
Therefore, the electrochemical device and the battery charge and discharge control system provided by the embodiment of the application can solve the problem of state detection of a Battery Management System (BMS), can save wiring harness ports, simplify control logic, realize cost controllability and high reliability, and can realize the problems of forced BMS awakening after power supply, ID calibration for parallel use of multiple battery packs and the like through expansion.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not used as limitations of the present application, and that suitable modifications and changes of the above embodiments are within the scope of the claims of the present application as long as they are within the spirit and scope of the present application.
Claims (11)
1. An electrochemical device comprising a cell unit, characterized in that the electrochemical device further comprises a battery management system comprising:
the system comprises a first sensor, a switch module and a microcontroller;
the first sensor is arranged in the electrochemical device and used for detecting the change of the magnetic field of external equipment;
the switch module is electrically connected to the battery cell unit and a power supply loop of the external equipment;
the microcontroller is electrically connected between the switch module and the first sensor; and
when the first sensor detects the change of the magnetic field, a first detection signal is output to the microcontroller, and the microcontroller outputs a first control signal to the switch module so as to control the battery cell unit to enter a first state.
2. The electrochemical apparatus of claim 1, wherein the battery management system further comprises a second sensor for detecting a change in the magnetic field of the external device.
3. The electrochemical device according to claim 2, wherein when the second sensor detects a change in the magnetic field, a second detection signal is output to the microcontroller, and the microcontroller outputs a second control signal to the switch module to control the cell unit to enter the second state.
4. The electrochemical device of claim 3, wherein the battery management system further comprises a first conditioning circuit electrically connected between the first sensor and the microcontroller for rectifying and filtering the first detection signal output by the first sensor.
5. The electrochemical device according to claim 3, wherein said battery management system further comprises a second conditioning circuit electrically connected between said second sensor and said microcontroller for rectifying and filtering said second detection signal output by said second sensor.
6. The electrochemical device of claim 3, wherein said external device comprises a magnetic member, and said first sensor and said second sensor are configured to detect said magnetic member.
7. The electrochemical device according to claim 6, wherein when the external device is a charging device and is docked with the electrochemical device, the magnetic member is in proximity to the first sensor, the first sensor detects an increase in magnetic flux and sends the first detection signal, and the first detection signal is a logic high signal.
8. The electrochemical device according to claim 7, wherein when the external device is a powered device and is docked with the electrochemical device, the magnetic member is in proximity to the second sensor, the second sensor detects the increase in magnetic flux and sends the second detection signal, and the second detection signal is a logic low signal.
9. The electrochemical device of claim 2, wherein said first sensor and said second sensor are both hall sensors.
10. The electrochemical device of claim 2, wherein said first sensor is disposed at a first location within said electrochemical device and said second sensor is disposed at a second location within said electrochemical device.
11. A battery charge and discharge control system comprising an electrochemical device according to any one of claims 1 to 10 and an external device electrically connected to the electrochemical device, the external device comprising a charging device or a discharging device or a maintenance device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561548.9A CN111697655A (en) | 2020-06-18 | 2020-06-18 | Electrochemical device and battery charge-discharge control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561548.9A CN111697655A (en) | 2020-06-18 | 2020-06-18 | Electrochemical device and battery charge-discharge control system |
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| CN111697655A true CN111697655A (en) | 2020-09-22 |
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| CN202010561548.9A Pending CN111697655A (en) | 2020-06-18 | 2020-06-18 | Electrochemical device and battery charge-discharge control system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964550A (en) * | 2009-07-22 | 2011-02-02 | 索尼公司 | Contactless cell apparatus |
| US20160093928A1 (en) * | 2014-09-30 | 2016-03-31 | Chervon Intellectual Property Limited | Battery pack and method of indicating remaining capacity thereof |
| CN108365642A (en) * | 2017-12-26 | 2018-08-03 | 中国航发四川燃气涡轮研究院 | A kind of telemetry system for revolving part test is for electric installation and control method |
| US20180331396A1 (en) * | 2017-05-10 | 2018-11-15 | Denso Corporation | Control module |
| CN109450035A (en) * | 2018-12-07 | 2019-03-08 | 歌尔科技有限公司 | A kind of self-protection circuit and charging base for charging base |
| CN109617191A (en) * | 2019-01-16 | 2019-04-12 | 青岛鲁渝能源科技有限公司 | Connector assembly, wireless power socket based on wireless power and for plug |
-
2020
- 2020-06-18 CN CN202010561548.9A patent/CN111697655A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964550A (en) * | 2009-07-22 | 2011-02-02 | 索尼公司 | Contactless cell apparatus |
| US20160093928A1 (en) * | 2014-09-30 | 2016-03-31 | Chervon Intellectual Property Limited | Battery pack and method of indicating remaining capacity thereof |
| US20180331396A1 (en) * | 2017-05-10 | 2018-11-15 | Denso Corporation | Control module |
| CN108365642A (en) * | 2017-12-26 | 2018-08-03 | 中国航发四川燃气涡轮研究院 | A kind of telemetry system for revolving part test is for electric installation and control method |
| CN109450035A (en) * | 2018-12-07 | 2019-03-08 | 歌尔科技有限公司 | A kind of self-protection circuit and charging base for charging base |
| CN109617191A (en) * | 2019-01-16 | 2019-04-12 | 青岛鲁渝能源科技有限公司 | Connector assembly, wireless power socket based on wireless power and for plug |
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Application publication date: 20200922 |