CN108963119B - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN108963119B CN108963119B CN201810829648.8A CN201810829648A CN108963119B CN 108963119 B CN108963119 B CN 108963119B CN 201810829648 A CN201810829648 A CN 201810829648A CN 108963119 B CN108963119 B CN 108963119B
- Authority
- CN
- China
- Prior art keywords
- fuse
- battery
- switch tube
- mos
- battery switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007599 discharging Methods 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 230000005669 field effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the application discloses a battery pack, which comprises a charging and discharging circuit and a battery switch tube control circuit; the charging and discharging circuit comprises a battery core and a battery switch tube, and the battery switch tube control circuit comprises a battery core, a battery switch tube, an electricity meter, a field effect tube mos and a fuse; in the charge and discharge circuit, the battery core is connected with a battery switch tube; the battery core is used for storing electric quantity, and the battery switch tube is used for controlling the charging and discharging circuit to be powered on and powered off; in the battery switch tube control circuit, a battery core is connected with a fuel gauge; the electric meter is used for detecting the working parameters of the battery core; the electricity meter is connected with the fuse through the mos; the ammeter is used for controlling mos to generate current according to the working parameters of the battery core, so that the fuse is fused; the fuse is connected with the battery switch tube, and when the fuse is in a fusing state, the battery switch tube is in a locking state. Therefore, the fuse in the battery pack can adopt the fuse with low cost, and the manufacturing cost of the battery pack is greatly reduced.
Description
Technical Field
The present application relates to the field of battery management, and more particularly, to a battery pack.
Background
Generally, the electronic product has insufficient battery capacity, and needs to wear an external battery with larger capacity, namely a battery pack.
In the prior art, in order to ensure safety and reliability of a battery pack in a charging and discharging process, the battery pack may generally include a charging and discharging circuit and an electricity meter, wherein the charging and discharging circuit at least includes a battery cell, a battery switch tube and a three-terminal fuse. When the battery cell has a condition that the safety is seriously affected, for example, the electricity meter detects that the voltage of the battery cell reaches a limit voltage or the temperature of the battery cell reaches a limit temperature, the electricity meter can control to turn on a Field Effect Transistor (mos) for driving a three-terminal fuse, and the mos can generate a large current to fuse the fuse at the three-terminal fuse so as to close the circuit.
However, the current in the charge/discharge circuit of the battery pack is generally large, and accordingly, the rated current of the charge/discharge circuit fuse is also large, so the rated current of mos for driving the fuse needs to be set large. In this case, the fuse in the battery pack can only be a three-terminal fuse with high cost, but cannot be other fuses with low cost, so that the manufacturing cost of the battery pack is greatly increased.
Disclosure of Invention
In order to solve the technical problem, the application provides a battery pack to realize that a fuse in the battery pack can adopt a fuse with lower cost, thereby greatly reducing the manufacturing cost of the battery pack.
The embodiment of the application discloses the following technical scheme:
the embodiment of the application provides a battery pack, which comprises a charging and discharging circuit and a battery switch tube control circuit; the charging and discharging circuit comprises an electric core and a battery switch tube, and the battery switch tube control circuit comprises the electric core, the battery switch tube, an electricity meter, a field effect tube mos and a fuse;
in the charging and discharging circuit, the battery core is connected with the battery switch tube; the battery core is used for storing electric quantity, and the battery switch tube is used for controlling the charging and discharging circuit to be powered on and powered off;
in the battery switch tube control circuit, the battery core is connected with the fuel gauge; the electricity meter is used for detecting working parameters of the battery core; the electricity meter is connected with the fuse through the mos; the electricity meter is used for controlling the mos to generate current according to the working parameters of the battery core so as to fuse the fuse; the fuse is connected with the battery switch tube, and when the fuse is in a fusing state, the battery switch tube is in a locking state;
and the rated current of the fuse is smaller than the current in the charge and discharge circuit.
Optionally, the mos includes a first mos and a second mos, and the fuse includes a first fuse and a second fuse;
the fuel gauge is connected with the first fuse through the first mos, and the first fuse is connected with the battery switch tube;
the electricity meter is connected with the second fuse through the second mos, and the second fuse is connected with the battery switch tube.
Optionally, the fuse is a one-time fuse.
According to the technical scheme, the fuse can be arranged in the battery switch tube control circuit; the battery core is connected with a fuel gauge, and the fuel gauge is used for detecting working parameters of the battery core; the electricity meter is connected with the fuse through the mos; the electricity meter is used for controlling the mos to generate current according to the working parameters of the battery core so as to fuse the fuse; the fuse is connected with the battery switch tube, and when the fuse is in a fusing state, the battery switch tube is in a locking state. Therefore, as the fuse is arranged in the battery switch tube control circuit instead of the charging and discharging circuit as in the prior art, the rated current of the fuse is smaller than the current in the charging and discharging circuit, and in this case, the fuse in the battery pack can adopt the fuse with lower cost, so that the manufacturing cost of the battery pack is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, 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 obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Various non-limiting embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of a battery pack according to an embodiment of the present application is shown. As shown in fig. 1, the present embodiment provides a battery pack, which may include a charge and discharge circuit and a battery switching tube control circuit.
The charging and discharging circuit may include a battery cell 102 and a battery switch tube 101. In the charging and discharging circuit, the battery cell 102 may be connected to the battery switch tube 101, for example, the battery cell 102 and the battery switch tube 101 may be connected in series. The battery core 102 may be used to store electric quantity, and the battery switch tube 101 may be used to control the charging and discharging circuit to be powered on and powered off, for example, when the battery switch tube 101 is in a locked state, the charging and discharging circuit may be powered off, and when the battery switch tube 101 is in a working state, the charging and discharging circuit may be powered on. It should be noted that, in an implementation manner, the battery cells 102 may include three battery cells, and the three battery cells are connected in series.
The battery switch tube control circuit can include a battery core 102, a battery switch tube 101, an electricity meter 103, a field effect tube mos105 and a fuse 104. In the battery switching tube control circuit, the battery cell 102 is connected to the electricity meter 103, for example, may be connected in series, where the electricity meter 103 may be configured to detect an operating parameter of the battery cell 102, such as a voltage value and a current value of the battery cell 102. Here, since the fuse 102 is disposed in the battery switch tube control circuit, rather than in the charge and discharge circuit as in the prior art, the rated current of the fuse 102 may be smaller than the current in the charge and discharge circuit. In this embodiment, the fuse 102 may be a three-terminal fuse, or in an implementation manner, since the rated current of the fuse 102 may be smaller than the current in the charging and discharging circuit, the fuse 102 may be a fuse with a lower cost, such as a one-time fuse, so that the manufacturing cost of the battery pack may be greatly reduced.
In the battery switch tube control circuit, the fuel gauge 103 may be connected to the fuse 104 through the mos105, for example, may be connected in series, where the fuel gauge 103 is configured to control the mos105 to generate a current according to an operating parameter of the battery cell 102, and it should be noted that the fuse 102 may be blown by the current generated by the mos 105.
In addition, in the battery switch tube control circuit, the fuse 102 is connected to the battery switch tube 101, and when the fuse 102 is in a fusing state, the battery switch tube 101 may be in a locking state, so that the charging and discharging circuit is powered off.
In one implementation, as shown in fig. 1, the mos105 may include two mos, a first mos and a second mos, respectively, and the fuse 102 may include two fuses, a first fuse and a second fuse, respectively. The fuel gauge 103 may be connected to a first fuse, for example, connected in series, via a first mos, and the first fuse is connected to the battery switch 101; the fuel gauge 103 may be connected, for example in series, via the second mos to a second fuse, which is connected to the battery switch tube 101.
According to the technical scheme, the fuse can be arranged in the battery switch tube control circuit; the battery core is connected with a fuel gauge, and the fuel gauge is used for detecting working parameters of the battery core; the electricity meter is connected with the fuse through the mos; the electricity meter is used for controlling the mos to generate current according to the working parameters of the battery core so as to fuse the fuse; the fuse is connected with the battery switch tube, and when the fuse is in a fusing state, the battery switch tube is in a locking state. Therefore, as the fuse is arranged in the battery switch tube control circuit instead of the charging and discharging circuit as in the prior art, the rated current of the fuse is smaller than the current in the charging and discharging circuit, and in this case, the fuse in the battery pack can adopt the fuse with lower cost, so that the manufacturing cost of the battery pack is greatly reduced.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. The above-described apparatus and system embodiments are merely illustrative, in that elements described as separate components may or may not be physically separate. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (3)
1. A battery pack is characterized by comprising a charging and discharging circuit and a battery switch tube control circuit; the charging and discharging circuit comprises an electric core and a battery switch tube, and the battery switch tube control circuit comprises the electric core, the battery switch tube, an electricity meter, a field effect tube mos and a fuse;
in the charging and discharging circuit, the battery core is connected with the battery switch tube; the battery core is used for storing electric quantity, and the battery switch tube is used for controlling the charging and discharging circuit to be powered on and powered off;
in the battery switch tube control circuit, the battery core is connected with the fuel gauge; the electricity meter is used for detecting working parameters of the battery core; the electricity meter is connected with the fuse through the mos; the electricity meter is used for controlling the mos to generate current according to the working parameters of the battery core so as to fuse the fuse; the fuse is connected with the battery switch tube, and when the fuse is in a fusing state, the battery switch tube is in a locking state;
and the rated current of the fuse is smaller than the current in the charge and discharge circuit.
2. The battery pack of claim 1, wherein the mos comprises a first mos and a second mos, and the fuse comprises a first fuse and a second fuse;
the fuel gauge is connected with the first fuse through the first mos, and the first fuse is connected with the battery switch tube;
the electricity meter is connected with the second fuse through the second mos, and the second fuse is connected with the battery switch tube.
3. The battery pack according to claim 1 or 2, wherein the fuse is a disposable fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810829648.8A CN108963119B (en) | 2018-07-25 | 2018-07-25 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810829648.8A CN108963119B (en) | 2018-07-25 | 2018-07-25 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108963119A CN108963119A (en) | 2018-12-07 |
| CN108963119B true CN108963119B (en) | 2021-06-29 |
Family
ID=64463834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810829648.8A Active CN108963119B (en) | 2018-07-25 | 2018-07-25 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108963119B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070080739A1 (en) * | 2005-10-12 | 2007-04-12 | Freescale Semiconductor, Inc. | Trimming circuit, electronic circuit, and trimming control system |
| US20080012529A1 (en) * | 2006-07-17 | 2008-01-17 | Compal Electronics, Inc. | Hybrid battery module with a voltage balancing unit and its charging and discharging method |
| CN106887425A (en) * | 2015-12-16 | 2017-06-23 | 格罗方德半导体公司 | For the ESD-protection structure of electric fuse |
| JP2017192193A (en) * | 2016-04-12 | 2017-10-19 | 株式会社Ihi | Battery protection device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8524385B2 (en) * | 2008-10-10 | 2013-09-03 | Mitsumi Electric Co., Ltd. | Battery pack |
| CN205355891U (en) * | 2016-02-23 | 2016-06-29 | 宁德时代新能源科技股份有限公司 | Lithium cell overcharge protection device |
| CN206283281U (en) * | 2016-12-16 | 2017-06-27 | 欣旺达电子股份有限公司 | Battery high current fills the protection and supervisory circuit with electric discharge soon |
| CN108155694A (en) * | 2018-01-05 | 2018-06-12 | 京东方科技集团股份有限公司 | Laptop electric power and charging method |
-
2018
- 2018-07-25 CN CN201810829648.8A patent/CN108963119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070080739A1 (en) * | 2005-10-12 | 2007-04-12 | Freescale Semiconductor, Inc. | Trimming circuit, electronic circuit, and trimming control system |
| US20080012529A1 (en) * | 2006-07-17 | 2008-01-17 | Compal Electronics, Inc. | Hybrid battery module with a voltage balancing unit and its charging and discharging method |
| CN106887425A (en) * | 2015-12-16 | 2017-06-23 | 格罗方德半导体公司 | For the ESD-protection structure of electric fuse |
| JP2017192193A (en) * | 2016-04-12 | 2017-10-19 | 株式会社Ihi | Battery protection device |
Non-Patent Citations (1)
| Title |
|---|
| 《A Floating-Gate MOS Implementation of Resistive Fuse》;T. Matsumoto et al.;《Neural Computation》;MIT Press;19980215;第10卷(第1998年2期);第485-498页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108963119A (en) | 2018-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6833984B2 (en) | Battery, terminal, and charging system | |
| CN101656415B (en) | Power tool | |
| CN101572326B (en) | Battery pack and control method | |
| US9160191B2 (en) | Battery pack and method for minimizing cell voltage deviations | |
| KR101975395B1 (en) | Battery pack, and controlling method of the same | |
| KR101213480B1 (en) | Battery protecting circuit and controlling method of the same | |
| US20170170653A1 (en) | Explosion-proof circuit, charging circuit and charging/discharging protection circuit of battery | |
| JP5974849B2 (en) | Battery monitoring device | |
| KR101387733B1 (en) | Battery pack, battery pack arrangement and electric apparatus | |
| JP2007236033A (en) | Battery pack and method for protecting battery | |
| CN104701927A (en) | Secondary protection IC, method of controlling secondary protection IC, protection module, and battery pack | |
| KR20130089570A (en) | Battery protection circuit and battery protection apparatus and battery pack | |
| JP2008043009A (en) | Battery pack and control method | |
| JP6087675B2 (en) | Battery module | |
| US20150263391A1 (en) | Battery pack | |
| JP2013162597A (en) | Assembled battery discharge control system and assembled battery discharge control method | |
| KR20180061526A (en) | Dual cell protection ic and battery module including the same | |
| CN105470925A (en) | Secondary battery protection circuit and battery device | |
| US6570364B2 (en) | Circuit and method for monitoring the operational reliability of rechargeable lithium cells | |
| JP2018078672A (en) | Battery module and battery pack | |
| KR101264020B1 (en) | System for energy storage and method for control the same | |
| US11114703B2 (en) | Battery pack | |
| JP6733581B2 (en) | Battery pack | |
| CN105471018A (en) | Charging/discharging control device and battery device | |
| CN108963119B (en) | Battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |