WO2022197018A1 - 퓨즈 박스 진동 감지 보호 회로 - Google Patents
퓨즈 박스 진동 감지 보호 회로 Download PDFInfo
- Publication number
- WO2022197018A1 WO2022197018A1 PCT/KR2022/003488 KR2022003488W WO2022197018A1 WO 2022197018 A1 WO2022197018 A1 WO 2022197018A1 KR 2022003488 W KR2022003488 W KR 2022003488W WO 2022197018 A1 WO2022197018 A1 WO 2022197018A1
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- WIPO (PCT)
- Prior art keywords
- fuse
- battery
- bus bar
- battery pack
- terminal
- Prior art date
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- 230000001681 protective effect Effects 0.000 title abstract description 3
- 238000001514 detection method Methods 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 3
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/143—Electrical contacts; Fastening fusible members to such contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/05—Component parts thereof
- H01H85/165—Casings
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
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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
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
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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
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
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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
- 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
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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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
- 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
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H2085/2075—Junction box, having holders integrated with several other holders in a particular wiring layout
- H01H2085/208—Junction box, having holders integrated with several other holders in a particular wiring layout specially adapted for vehicles
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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
- H01M10/425—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
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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
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/10—Temperature sensitive devices
- H01M2200/103—Fuse
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a battery pack for detecting vibration flowing into a fuse box and a bus bar of a battery pack for a vehicle, and more particularly, to a battery pack including a vibration detecting element for detecting vibration flowing into the fuse box and the bus bar from the outside. It's about
- the battery of such an electric vehicle can be configured in various ways by connecting a plurality of battery cells in series/parallel according to the required output voltage and charging/discharging capacity, and a battery module including at least one battery cell includes a protection circuit, etc. Add the configuration of to configure the battery pack structure.
- the fuse used in electric vehicles is melted and cut off when an overcurrent flows in the battery module or pack circuit and blocks the circuit to protect the battery cell from ignition and damage.
- the fuses are grouped so that they can be combined and separated from each other in the fuse box.
- Patent Document 1 KR2020-0011810 A
- Patent Document 2 JP2019-087723 A
- Patent Document 3 KR2020-0090101 A
- Patent Document 4 KR2014-0117154 A
- the present invention provides a means for detecting vibration in a fuse box that is vulnerable to vibration in the battery pack and is well transmitted to the vibration applied to the pack.
- Another object of the present invention is to provide a battery pack capable of increasing user safety from damage to a fuse box vulnerable to vibration and damage due to disconnection with a bus bar by sensing vibration applied to a fuse box of an electric vehicle through a vibration detection element.
- a battery pack includes one or more battery modules including a plurality of battery cells; a bus bar connected to the module terminal of the battery module to electrically connect one or more battery modules, and connected to an external BMS of the battery pack; a fuse box in which a fuse connecting each of the battery modules and the bus bar is accommodated; a vibration detection element attached to one surface of the fuse box or one surface of a bus bar connected to an external BMS of a battery pack to detect vibrations flowing into a fuse connected to each battery module; and the vibration detection element is directly connected to the BMIC through terminals at both ends, the BMS including the BMIC and connected to the vibration detection element to perform a protection operation according to the sensed vibration of the battery module; It is characterized in that it includes.
- the vibration detection element is attached to the bus bar and the fuse box in the form of a tape or in the form of an FPCB transferred on a flexible substrate to sensitively sense the inflow of vibration, and is not damaged even by a temporary impact.
- the fuse box and the bus bar are characterized in that cumulative damage is generated due to vibrations introduced from the outside.
- the vibration detection element measures a change in voltage value according to the vibration detection of the bus bar and the fuse box and transmits it to the BMS, and the BMS compares the voltage value with a predetermined reference level, and the maximum allowable at the predetermined reference level When the level is exceeded, it is characterized by performing a protective action and sending an alarm to the user.
- a battery pack includes a battery module, a bus bar electrically connecting the battery module, and a fuse box in which a fuse is accommodated, and detecting vibration attached to one side of the fuse box or one side of the bus bar It is composed by including the elements together.
- the fuse box or bus bar is a place where accumulated damage due to vibrations introduced from the outside of the battery pack is largely generated, and a vibration detection element is attached thereto to sensitively sense it.
- the vibration detection element detects vibrations flowing through the fuse box and the bus bar, and transmits a change in a voltage value according to the sensed vibration to the BMS connected to both ends of the vibration detection element, and the BMS uses the received voltage value as a predetermined standard.
- 1 is a battery pack according to an embodiment of the present invention
- FIG. 2 is a battery module and a battery pack including the same according to an embodiment of the present invention
- FIG. 3 is a block diagram of a fuse according to the present invention.
- FIG. 4 is a block diagram of a fuse box according to the present invention.
- FIG. 5 is a configuration diagram of a fuse case in accordance with the present invention except for a fuse cover;
- FIG. 6 is a battery pack according to another embodiment of the present invention.
- a battery including a battery module 100 , a fuse 210 , a fuse box 200 including a fuse case 220 and a vibration detection element 230 , and a bus bar 300 . It is composed of a pack 10 and a battery management system (BMS) 400 that controls the battery pack 10 .
- BMS battery management system
- the battery module 100 is configured by connecting a plurality of battery cells in series or in parallel, and at least one of these battery modules 100 is connected to configure the battery pack 10 .
- the plurality of battery cells may be configured as cylindrical, pouch, and prismatic battery cells.
- the type of the battery cell may include, but is not limited to, a lithium ion battery, a lithium polymer battery, a nickel cadmium battery, and a nickel hydride battery.
- the fuse box 200 is composed of a fuse 210, a fuse case in which the fuse 210 is accommodated, and a vibration detection element 230 attached to one surface of the fuse case. make it easy
- the fuse box 200 may be disposed inside the battery pack 10 at a position between the bus bars 300 connected to the terminals of each battery module 100 , and also accommodate a plurality of fuses 210 to accommodate the battery pack. (10) It may be disposed at one end of the bus bar 300 connected to the outside.
- the fuse box 200 may be formed at a portion where the electrode terminal of the battery pack and the bus bar are connected as shown in FIG. 1 , or may be formed at a connection portion between each module 100 and the bus bar as shown in FIG. 6 . .
- one end of the bus bar 300 is connected to the BMS 400 of FIG. 2 .
- the fuse case of the fuse box 200 - the battery terminal 222 and the bus bar 300 . is connected to one end, and the BMS 400 may be connected to the fuse case terminal 224 .
- fuse boxes 200 are illustrated as being connected between each battery module 100 and the bus bar 300 , an additional fuse box 200 is connected to one end of the bus bar 300 . It may be arranged to connect between electrode terminals (not shown) of the battery pack 10 .
- the fuse 210 is configured to be connected to a circuit through which the charge/discharge current of the battery module 100 flows, and is connected between the battery module 100 and the bus bar 300 to connect at least one battery module 100, respectively. It is configured to be connected to the bus bar 300 through the fuse 210 .
- the bus bar 300 and electrode terminals (not shown) of the battery pack 10 or the bus bar 300 and the external BMS 400 are connected through the fuse 210 .
- the fuse 210 is accommodated in the fuse box 200 and may be positioned at each connection portion connected between the battery module 100 and the bus bar 300 , and a plurality of fuses 210 of one fuse box 200 . ) may be accommodated and located at one end of the bus bar 300 connected to an external terminal (electrode terminal or terminal connected to the BMS) of the battery pack 10 .
- FIG. 3 shows a detailed configuration of the fuse 210 .
- the fuse 210 includes the fuse terminal 212 and is inserted into the fuse case to be connected to the fuse case-battery terminal 222 to connect the battery module 100 to an external device and a battery management system.
- the fuse 210 is made of metal such as copper and tin, and when an overcurrent flows through the battery module 100 or the circuit of the pack, the fuse-breaking part 211 is melted to block the battery module 100 from the overcurrent.
- the vibration detection element 230 of the present invention detects vibration from the outside in order to prevent or detect the loss of the overcurrent blocking function in advance.
- FIG. 5 shows the structure of the fuse case 220 .
- the fuse case of FIG. 5 may have a structure covered with a fuse cover 221 as shown in FIG. 4 .
- the fuse case has a fuse cover 221 including a fuse accommodating part capable of accommodating the fuse 210 therein, and a fuse case terminal 224 is formed inside the fuse accommodating part.
- the bus bar 300 is connected to one end of the fuse case terminal 224 , and the terminal of the battery modules 100 is connected to the fuse case-battery terminal 222 , and the bus bar ( 300 ) and the battery module 100 are connected through a fuse 210 .
- the bus bar 300 is connected to the fuse case-battery terminal 222 , the fuse case terminal 224 is connected to the BMS 400 , and the fuse 210 is connected to the bus bar 300 .
- the BMS 400 are arranged to form a path.
- one end of the bus bar 300 may be connected to the fuse case terminal 224 , and the fuse case-battery terminal 222 may be connected to the BMS 400 .
- an abnormality such as disconnection of the circuit connecting the fuse 210 or the battery module 100 and the bus bar 300 may occur due to the breakage of the fuse case, and when the fuse 210 problem occurs, the battery module ( 100) or the pack cannot be cut off from overcurrent, or power insensitivity of the battery pack 10 occurs, thereby causing a problem in the stability of the user using the battery pack 10 .
- the vibration detection element 230 is mounted at a position where vibrations from the outside of the battery pack 10 are transmitted more sensitively to the fuse 210 in the process of being transmitted to the inside, and is attached to detect the vibration.
- the vibration detection element 230 is disposed insulated from each of the wires/fuses in the fuse box.
- the vibration detection element 230 may be disposed to physically contact the fuse 210 while maintaining an electrically insulated state, and may be configured to directly sense the vibration applied to the fuse 210 , FIGS. 4 and 5 . As shown in Fig. , it may be disposed on the fuse case terminal 224 or disposed on one surface of the fuse case 220 to sense vibration of the fuse box. Also, the vibration detection element 230 may be disposed on one surface of the fuse cover 221 to directly sense vibration applied to the fuse.
- the vibration transmitted from the outside through the bus bar 300 is generated by the pack. Vibration may be introduced into the fuse 210 and the fuse box 200 in the process of being transmitted to the inside. Accordingly, the vibration detecting element 230 may be attached to be positioned on at least one surface of the fuse box 200 so as to detect the vibration flowing into the bus bar 300 .
- each of the battery modules 100 is connected through a plurality of fuses 210 . It is connected to the bus bar 300 . Therefore, when the vibration generated outside the battery pack 10 is introduced through the bus bar 300 , it is also transmitted to the fuse 210 and the fuse box 200 before being transmitted to the battery module 100 . Accordingly, the vibration detection element 230 may be attached to each of the plurality of fuse boxes 200 to sense vibration transmitted to the fuse box 200 connected to the terminal of the battery module 100 .
- the vibration detection element 230 When the above-described vibration detection element 230 is mounted on the vehicle battery pack 10 , the purpose is to detect vibrations and vibrations transmitted to the fuse box 200 while driving. Therefore, the vibration detection element 230 is transferred in the form of a tape or a flexible protection circuit board (FPCB) transferred on a flexible substrate, so that the vibration generated during vehicle driving is prevented from flowing into the fuse box 200 and the bus bar 300 . It can detect even a momentary moment sensitively, and it can detect vibration continuously without being damaged even by a temporary shock.
- FPCB flexible protection circuit board
- the vibration detection element 230 is directly connected to the CMC 410 of the BMS 400 by a ring terminal or a wire harness connection structure through terminals formed at both ends, and the BMIC of the CMC 410 . It is connected to the master BMS 400 through 411 and transmits a change in resistance value due to the detected vibration to the BMS 400 .
- bus bar 300 shows the configuration of the bus bar 300 . Although only one bus bar 300 is shown in the drawing, negative/positive bus bars to which the module terminals (negative/positive terminals) of the battery modules 100 are respectively connected may be formed, and one end of the battery pack 100 ) is connected to an external electrode terminal (not shown).
- the bus bar 300 electrically connects the one or more battery modules 100 to each other through a module terminal (not shown), and is electrically connected to each battery module 100 through the fuse 210 .
- the bus bar 300 is connected to the fuse case-bus bar terminal 223 through the fuse case terminal 224 of the fuse box 200 .
- One end of the bus bar 300 is partially exposed to the outside of the battery pack 10 in order to be connected to the battery pack 10 external electric equipment and is connected to the BMS 400 through which the vibration outside the battery pack 10 is prevented. delivered inside the pack.
- cumulative damage may occur.
- a portion connected to the fuse box 200 or the external BMS 400 is damaged due to vibration generated outside the battery pack 10 such as driving of a vehicle and accumulated damage caused thereby to the battery module 100 . Communication errors may occur.
- a vibration detection element 230 when the vibration detection element 230 is mounted on one surface of the fuse box 200 including the plurality of fuses 210 , but is not located on one surface of the bus bar 300 , the bus bar 300 .
- a vibration detection element 230 may also be attached to one end of the bus bar 300 connected to the external BMS 400 .
- FIG. 2 shows a connection relationship between the battery pack 10 and the BMS 400 .
- the BMS 400 may be formed separately from the battery pack, or may be formed inside the battery pack.
- the battery pack 10 includes the battery modules 100 and a bus bar 300 connecting the modules 100 . Limited.
- the BMS 400 may be configured to be included in each module as a module BMS, and in this case, at least one module BMS functions as the master BMS 420 .
- BMS (400) collectively refers to the battery management system, the cell monitoring circuit CMC (Cell Monitoring Circuit) 410, the battery monitoring IC BMIC (Battery Monitoring Circuit) 411 and the Master BMS (420) that manages the entire system includes
- the CMC 410 is a circuit inserted into the battery module 100 and is connected to the vibration detection element 230 through the internal BMIC 411 to check the state of the battery cell.
- the BMIC 411 is directly connected to both ends of the vibration detection element 230 to monitor a change in voltage value due to vibration or mechanical deformation of the fuse box 200 and the bus bar 300, and the detected information is transferred to the Master. It is transmitted to the BMS (420).
- Master BMS 420 is a BMS that manages the entire battery system and communicates with the vehicle through MCU, and vibration or mechanical vibration of battery cells and modules by the vibration detection element 230 from the BMIC 411 of the CMC 410 or Receives information on voltage value change according to deformation.
- the voltage value may be divided into a predetermined reference level according to the maximum allowable deformation specification of the vibration detection element 230 , and the protection operation of the battery pack 10 may be performed according to the range of the detected vibration, and an alarm may be transmitted to the user.
- the first level based on the initial state level that is the level of the vibration detection element in the state before deformation, the second level that is the maximum allowable level of deformation, and the third and fourth levels that exceed the maximum allowable level of deformation are referenced. level can be specified.
- the vibration detected by the vibration detection element exceeds the second level, an alarm is sent to the user, and when the third level exceeds the third level, the alarm is transmitted and the battery is charged and discharged and the vehicle is operated below the rated rating, and the fourth level If it exceeds, it is determined that the user vibration detection element 230 is damaged, and a measurement impossible alarm may be transmitted.
- the detection level reference and detection time according to the change in the resistance value of the vibration detection element 230 may be changed according to a user's request.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
- Fuses (AREA)
Abstract
Description
Claims (10)
- 배터리 팩에 있어서,복수 개의 배터리 셀이 구비된 하나 이상의 배터리 모듈;상기 배터리 모듈의 모듈 단자와 연결되어 하나 이상의 배터리 모듈을 전기적으로 연결하는 버스바;퓨즈가 수납되는 퓨즈 박스;를 포함하여 구성되며,상기 퓨즈 박스는,상기 퓨즈 박스의 일면 또는 상기 버스바 일면에 절연되어 부착되어, 배터리 팩으로 유입되는 진동을 검출하는 진동 검출 소자; 를 포함하여 구성되는 배터리 팩.
- 제1항에 있어서,상기 진동 검출 소자는 버스바 또는 퓨즈 박스에 테이프 형태 또는 유연 기판 위에 전사된 FPCB 형태로 부착되어 진동의 유입을 감지하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 퓨즈박스는,상기 버스바와 배터리 모듈의 모듈 단자의 연결부위에 배치되어, 버스바와 배터리 모듈 사이의 경로를 형성하는 것을 특징으로 하는 배터리 팩.
- 제3항에 있어서,상기 퓨즈박스는,배터리 모듈의 모듈단자에 연결되는 퓨즈 케이스-배터리 단자;버스바에 연결되는 퓨즈 케이스 단자;상기 퓨즈 케이스-배터리 단자와 퓨즈 케이스 단자를 연결하는 퓨즈;를 포함하여 구성되어, 배터리 모듈과 버스바를 퓨즈를 통하여 연결하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 퓨즈박스는,상기 버스바의 일단에 배치되어, 상기 버스바와 BMS 사이의 경로를 형성하는 것을 특징으로 하는 배터리 팩.
- 제5항에 있어서,상기 퓨즈박스는,BMS에 연결되는 퓨즈 케이스-배터리 단자;버스바의 일단에 연결되는 퓨즈 케이스 단자;상기 퓨즈 케이스-배터리 단자와 퓨즈 케이스 단자를 연결하는 퓨즈;를 포함하여 구성되어, 버스바와 BMS 사이를 배터리 모듈과 버스바를 퓨즈를 통하여 연결하는 것을 특징으로 하는 배터리 팩.
- 제4항 또는 6항에 있어서,상기 진동 검출소자는,상기 퓨즈 케이스 단자로부터 연장되는 퓨즈 케이스 버스바 단자상에 절연배치되는 것;을 특징으로 하는 배터리 팩.
- 제4항 또는 6항에 있어서,상기 진동 검출소자는,상기 퓨즈에 물리적으로 접촉하도록 절연배치되는 것;을 특징으로 하는 배터리 팩.
- 제4항 또는 6항에 있어서,상기 퓨즈박스는,상기 퓨즈를 덮는 퓨즈 커버를 구비하며,상기 진동 검출소자는 상기 퓨즈 커버의 일면에 배치되는 것;을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 진동 검출 소자는 버스바 및 퓨즈 박스의 진동 감지에 따른 전압값의 변화를 측정하여 BMS에 전달하고,상기 BMS는 전압값을 소정의 기준 레벨과 비교하고,상기 소정의 기준 레벨에서 최대 허용 가능 레벨을 초과하는 경우 보호 동작 수행 및 사용자에게 알람을 전송하는 것을 특징으로 배터리 팩.
Priority Applications (3)
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US18/282,454 US20240170819A1 (en) | 2021-03-16 | 2022-03-11 | Protective circuit for sensing vibration of fuse box |
CN202280021889.4A CN116998043A (zh) | 2021-03-16 | 2022-03-11 | 用于感测保险丝盒的振动的保护电路 |
EP22771684.2A EP4293796A1 (en) | 2021-03-16 | 2022-03-11 | Protective circuit for sensing vibration of fuse box |
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KR1020210034141A KR20220129354A (ko) | 2021-03-16 | 2021-03-16 | 퓨즈 박스 진동 감지 보호 회로 |
KR10-2021-0034141 | 2021-03-16 |
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- 2021-03-16 KR KR1020210034141A patent/KR20220129354A/ko active Search and Examination
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- 2022-03-11 WO PCT/KR2022/003488 patent/WO2022197018A1/ko active Application Filing
- 2022-03-11 CN CN202280021889.4A patent/CN116998043A/zh active Pending
- 2022-03-11 US US18/282,454 patent/US20240170819A1/en active Pending
- 2022-03-11 EP EP22771684.2A patent/EP4293796A1/en active Pending
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CN116998043A (zh) | 2023-11-03 |
KR20220129354A (ko) | 2022-09-23 |
US20240170819A1 (en) | 2024-05-23 |
EP4293796A1 (en) | 2023-12-20 |
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