EP3939106A1 - Akkusicherung - Google Patents
AkkusicherungInfo
- Publication number
- EP3939106A1 EP3939106A1 EP20706529.3A EP20706529A EP3939106A1 EP 3939106 A1 EP3939106 A1 EP 3939106A1 EP 20706529 A EP20706529 A EP 20706529A EP 3939106 A1 EP3939106 A1 EP 3939106A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- accumulator
- overcurrent protection
- line
- protection device
- energy storage
- 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.)
- Withdrawn
Links
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
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- 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
-
- 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
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- 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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
-
- 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
-
- 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
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
- H01M50/284—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]
-
- 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
Definitions
- the present invention relates to an accumulator, in particular for supplying a machine tool with electrical energy, with a housing for accommodating at least one energy storage cell and a positive line and a negative line for connecting the at least one energy storage cell to an interface device.
- Accumulators available on the market usually contain a large number of energy storage cells, also called accumulator cells, which are used to store and deliver electrical energy.
- the housing of the accumulator usually consists of a relatively hard plastic shell.
- the hard plastic can be, for example, polyamide, polycarbonate or the like.
- an accumulator in particular for supplying a machine tool with electrical energy, with a housing for receiving at least one energy storage cell and a positive line and a negative line for connecting the at least one energy storage cell to an interface device.
- the accumulator contains at least one overcurrent protection device in the positive line or in the negative line.
- At least one overcurrent protection device both in the positive line and in the Negative lead is included. This can further increase the safety of the accumulator.
- the accumulator it may be possible for at least two overcurrent protection devices arranged parallel to one another to be contained in the positive line or in the negative line.
- the safety of the accumulator can be further increased by the special arrangement or increase in the number of overcurrent protection devices.
- the overcurrent protection device is designed as a fuse.
- the overcurrent protection device can be designed, for example, as a fuse, electronic fuse, SMD (surface-mounted device), self-resetting fuse, line circuit breaker or as an electrical resistor.
- the overcurrent protection device can also be designed as a taper in a cell connector and / or as a taper of a current-carrying path on a circuit board.
- Figure 1 is a side view of a machine tool in the form of a
- Figure 2 is a side sectional view of the accumulator with a first and a second
- Row of energy storage cells a control device, an interface device, a first overcurrent protection device in the
- FIG. 3 shows a perspective view through the housing of the accumulator with a first and second row of energy storage cells, an interface device, a first overcurrent protection device in FIG
- FIG. 4 shows a schematic circuit diagram of the accumulator according to the invention according to a first exemplary embodiment
- FIG. 5 shows a schematic circuit diagram of the accumulator according to the invention according to a second exemplary embodiment
- FIG. 6 shows a schematic circuit diagram of the accumulator according to the invention according to a third exemplary embodiment
- FIG. 7 shows a schematic circuit diagram of the accumulator according to the invention according to a fourth exemplary embodiment
- FIG. 8 shows a schematic circuit diagram of the accumulator according to the invention in accordance with a fifth exemplary embodiment.
- FIG. 9 shows a schematic circuit diagram of the accumulator according to the invention according to a sixth embodiment. Execution for example:
- Figure 1 shows a schematically illustrated machine tool 1 in the form of a cordless screwdriver.
- the machine tool 1 is designed in the form of a drill, a saw, an angle grinder or the like.
- the machine tool 1 designed as a cordless screwdriver essentially contains a housing 2 in which a drive in the form of an electric motor, a gear, an output shaft, a drive shaft and a control are contained, a handle 3, an operating switch 4 and a tool holder 5.
- the drive , the gear, the output shaft, the drive shaft and the control are not shown in the figures.
- the housing 2 contains a front end 2a, a rear end 2b, an upper side 2c and a lower side 2d.
- the tool holder 5 is provided, which is used to receive and hold a tool 6.
- the tool 6 is designed as a screwdriver bit.
- the handle 3 is connected with a first, upper end 3a to the underside 2d of the housing 2.
- the operating switch 4 of the machine tool 1 is positioned on a front side 3b of the handle 3 and is used to activate the machine tool 1.
- a battery interface 7 is contained at a second, lower end 3c of the handle 3.
- the battery interface 7 contains a plus and minus contact and is used for the releasable connection of a battery 8 to the machine tool 1.
- the machine tool 1 can be supplied with electrical energy through the connected accumulator 8.
- the accumulator 8 essentially contains a housing 9 (also called battery housing), a number of energy storage cells 10 (also called battery cells), an interface device 1 1, a plus line 12 (also plus path, plus wire or Called positive cable), a negative line 13 (also called negative path, negative wire or negative cable) and a battery control 14 (also called CMS - Cell Management System).
- a housing 9 also called battery housing
- a number of energy storage cells 10 also called battery cells
- an interface device 1 1 also called a plus line 12 (also plus path, plus wire or Called positive cable), a negative line 13 (also called negative path, negative wire or negative cable) and a battery control 14 (also called CMS - Cell Management System).
- the energy storage cells 10 can be designed in the form of cylindrical battery cells or in the form of so-called pouch cells.
- the battery control 14 is essentially in the form of a printed circuit board (also called printed circuit board, printed circuit board, printed circuit board (PCB)).
- a printed circuit board also called printed circuit board, printed circuit board, printed circuit board (PCB)
- the interface device 1 1 also contains a plus connection 1 1 a and a minus connection 1 1 b (cf. FIG. 3). With the help of this plus and minus connection 1 1 a, 1 1 b, the direct voltage generated by the energy storage cells 10 (also called direct current “DC”) can be transmitted to a machine tool 1 connected to the accumulator 8 via its plus and negative contact are supplied with electrical energy.
- the interface device 11 of the accumulator 8 is releasably connected to the accumulator interface 7 of the machine tool 1.
- the plus and minus contacts of the machine tool 1 are not shown in the figures.
- FIG. 2 shows a side sectional view through the accumulator 8 with its essential components.
- the accumulator 8 contains a first and second row R1, R2 of energy storage cells 10.
- the positive poles of the respective energy storage cells are connected to the positive connection 1 through the positive line 12 1 a of the interface device 11 and the negative poles of the respective energy storage cells 10 are electrically connected to the negative connection 11 b of the interface device 11 by the negative line 13.
- the energy storage cells 10 of the first row R1 and the energy storage cells 10 of the second row R2 are each connected to one another in series (also in series).
- the first row R1 of energy storage cells 10 and the second row R2 of energy storage cells 10 are in turn connected in parallel.
- a first overcurrent protection device 15a (also called fuse) is positioned in the positive line 12 and a second overcurrent protection device 15b (also called a fuse) is positioned in the negative line 13.
- a first and second overcurrent protection device 15a, 15c is positioned in the positive line 12 and a first and second overcurrent protection device 15b, 15d in the negative line 13.
- the first and second overcurrent protection devices 15a, 15c are positioned in series in the positive line 12 and the first and second overcurrent protection devices 15b, 15d are positioned in series in the negative line 13.
- Figure 6 shows a third embodiment of the accumulator 8 according to the invention.
- a first and second overcurrent protection device 15a, 15c are arranged in parallel in the positive line 12 and a first and second overcurrent protection device 15b, 15d in parallel in the negative line 13 .
- more than two overcurrent protection devices 15a, 15b, 15c, 15d can be positioned in parallel in the positive line 12 and / or in the negative line 13.
- a fourth embodiment of the accumulator 8 according to the invention is shown.
- a first and second overcurrent protection device 15a, 15c are arranged in parallel in the positive line 12 and a third and fourth overcurrent protection device 15e, 15g are arranged in parallel in the positive line 12.
- a first and second overcurrent protection device 15b, 15d are arranged in parallel in the negative line 13 and a third and fourth overcurrent protection device 15f, 15h are arranged in parallel in the negative line 13.
- FIG. 8 shows a fifth embodiment of the accumulator 8 according to the invention.
- a first and second overcurrent protection device 15a, 15c is positioned in the positive line 12 and a first and second overcurrent protection device 15b, 15d is positioned in the negative line 13.
- both the second overcurrent protection device 15c in the positive line 12 and the second overcurrent protection device 15d in the negative line 13 are positioned on the battery control 14 designed as a printed circuit board.
- an overcurrent protection device 15a is positioned in the positive line 12 and an overcurrent protection device 15b is positioned in the negative line 13.
- the overcurrent protection device 15a is positioned in the positive line 12 and the overcurrent protection device 15b in the negative line 13 is positioned in front of and behind the battery control 14, respectively.
- the energy storage cells 10 and the battery control 14 are positioned parallel to one another in the circuit diagram in FIG.
- the overcurrent protection device 15a in the positive line 12 and the overcurrent protection device 15b in the negative line 13 are in turn connected in series with the energy storage cells 10 and the battery control 14.
- the battery control 14 is connected to a display device 16 (also called a display). On the display device 16, data and information that are generated by the battery controller 14 with regard to the energy storage cells 10 can be displayed for a user of the battery 8.
- This serial arrangement of the overcurrent protection devices 15a, 15b to the energy storage cells 10 and the battery control 14 means that the display device 16 can continue to be supplied with electrical energy with the aid of the overcurrent protection devices 15a, 15b even in the event of an interruption in the electrical circuit.
- a user of the accumulator 8 can continue to receive information and data, in particular about the interruption of the circuit of the accumulator 8 by an overcurrent protection device 15a, 15b are supplied.
- the battery control 14 is connected to the plus and minus lines 12, 13.
- the battery control 14 serves, among other things, to monitor the energy storage cells 10 and in particular the capacity or the voltage and current value of the energy storage cells 10.
- machine tool housing 2a front end of the housing
- overcurrent protection device 16 display device
- R1 first row of energy storage cells
- R2 second row of energy storage cells
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19161802.4A EP3709393A1 (de) | 2019-03-11 | 2019-03-11 | Batteriesicherung |
PCT/EP2020/055383 WO2020182504A1 (de) | 2019-03-11 | 2020-03-02 | Akkusicherung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3939106A1 true EP3939106A1 (de) | 2022-01-19 |
Family
ID=65763313
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19161802.4A Withdrawn EP3709393A1 (de) | 2019-03-11 | 2019-03-11 | Batteriesicherung |
EP20706529.3A Withdrawn EP3939106A1 (de) | 2019-03-11 | 2020-03-02 | Akkusicherung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19161802.4A Withdrawn EP3709393A1 (de) | 2019-03-11 | 2019-03-11 | Batteriesicherung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220131243A1 (de) |
EP (2) | EP3709393A1 (de) |
CN (1) | CN113316865A (de) |
WO (1) | WO2020182504A1 (de) |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2947016C2 (de) * | 1979-11-22 | 1982-09-02 | Silberkraft-Leichtakkumulatoren Gmbh, 4100 Duisburg | Gasdichte galvanische Zelle mit einer Überdrucksicherung |
US6700766B2 (en) * | 2000-09-14 | 2004-03-02 | Sony Corporation | Overvoltage protection circuit with thermal fuse, zener diode, and posistor |
CN101916887B (zh) * | 2003-10-14 | 2013-03-20 | 布莱克和戴克公司 | 电池组 |
JP4207877B2 (ja) * | 2004-10-04 | 2009-01-14 | ソニーケミカル&インフォメーションデバイス株式会社 | 保護回路 |
JP5316831B2 (ja) * | 2006-02-28 | 2013-10-16 | 日立工機株式会社 | コードレス電動工具または充電器 |
DE102007029744A1 (de) * | 2007-06-27 | 2009-01-08 | Robert Bosch Gmbh | Anordnung mit wenigstens einer Batterie |
DE102007033427A1 (de) * | 2007-07-18 | 2009-01-22 | Robert Bosch Gmbh | Anordnung mit einem Gehäuse |
AT508742B1 (de) * | 2009-09-10 | 2011-07-15 | Norman Neuhold | Einsatz für ein akkumulatorteil |
DE102010020294A1 (de) * | 2010-05-12 | 2011-08-18 | Continental Automotive GmbH, 30165 | Wiederaufladbare elektrische Energiespeichereinheit und Verwendung hierfür |
JP4961511B2 (ja) * | 2010-07-29 | 2012-06-27 | パナソニック株式会社 | 電池モジュール |
US20130136964A1 (en) * | 2011-11-30 | 2013-05-30 | Johnson Controls Technology Company | Electrochemical cell having a safety device |
KR101648239B1 (ko) * | 2012-06-29 | 2016-08-12 | 삼성에스디아이 주식회사 | 돌입 전류를 저감하는 에너지 저장 장치 및 그 방법 |
TW201405991A (zh) * | 2012-07-23 | 2014-02-01 | Energy Control Ltd | 將二次電池及保險絲以橋式接法構成的安全電池組 |
KR20140017043A (ko) * | 2012-07-24 | 2014-02-11 | 삼성에스디아이 주식회사 | 전류차단장치와 이를 구비하는 배터리 팩 |
CN102769120B (zh) * | 2012-07-24 | 2016-03-30 | 深圳市雄韬电源科技股份有限公司 | 一种电池组连接装置、电池系统及电动设备 |
DE102013204073B4 (de) * | 2013-03-11 | 2023-02-09 | Robert Bosch Gmbh | Batterie mit thermischem Auslöseelement |
JP6193016B2 (ja) * | 2013-06-28 | 2017-09-06 | 三洋電機株式会社 | 車載用の電源装置及び電源装置を備える車両 |
KR102441922B1 (ko) * | 2015-05-14 | 2022-09-08 | 삼성에스디아이 주식회사 | 이차 전지 |
CN106208197B (zh) * | 2016-07-25 | 2019-01-22 | 苏州绿恺动力电子科技有限公司 | 一种大功率便携式电动工具用锂电池包 |
US10177578B2 (en) * | 2016-08-02 | 2019-01-08 | Jason Cooke | Power distribution device for use with portable battery |
-
2019
- 2019-03-11 EP EP19161802.4A patent/EP3709393A1/de not_active Withdrawn
-
2020
- 2020-03-02 CN CN202080010294.XA patent/CN113316865A/zh active Pending
- 2020-03-02 WO PCT/EP2020/055383 patent/WO2020182504A1/de unknown
- 2020-03-02 US US17/429,392 patent/US20220131243A1/en not_active Abandoned
- 2020-03-02 EP EP20706529.3A patent/EP3939106A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN113316865A (zh) | 2021-08-27 |
WO2020182504A1 (de) | 2020-09-17 |
US20220131243A1 (en) | 2022-04-28 |
EP3709393A1 (de) | 2020-09-16 |
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