CN111180291A - Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof - Google Patents

Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof Download PDF

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Publication number
CN111180291A
CN111180291A CN201911095405.7A CN201911095405A CN111180291A CN 111180291 A CN111180291 A CN 111180291A CN 201911095405 A CN201911095405 A CN 201911095405A CN 111180291 A CN111180291 A CN 111180291A
Authority
CN
China
Prior art keywords
fuse
indicator
voltage battery
impact
trigger
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.)
Pending
Application number
CN201911095405.7A
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Chinese (zh)
Inventor
F.施蒂姆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN111180291A publication Critical patent/CN111180291A/en
Pending legal-status Critical Current

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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
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • 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
    • 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
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • 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
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Abstract

Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof. The invention relates to a fuse system comprising a fuse, wherein a trigger indicator is arranged on the fuse such that a cause of a fuse trigger can be detected from an optical change of the trigger indicator. The invention also relates to a high-voltage battery system for a motor vehicle, comprising a fuse and a crash indicator, which is designed to change a visible characteristic as a function of a crash acting on the crash indicator.

Description

Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof
Technical Field
The invention relates to a fusing system, a method for operating a high-voltage battery system of a motor vehicle, and a high-voltage battery system.
Background
Fuses are widely used in motor vehicles. A common application of fuses is to protect a high voltage battery pack from short circuit currents, as used in, for example, electric vehicles. In particular, fuses used for this purpose are often invisible ceramic elements, i.e. components of the fuse which melt when the current flow is too high are not visible from the outside. Fuses are triggered not only by high currents, but also, if necessary, can lose their conductive properties as a result of external forces, for example, as a result of the elements located in the fuse breaking or breaking. If a fuse is used to protect the high voltage battery system from short circuits, the battery control unit cannot record data as to whether the fuse's disintegration is due to a short circuit current or to an external force effect. Because of this, the entire high-voltage battery system is often replaced as the fuse is triggered, since the reason for fuse triggering cannot be ruled out is damage within the high-voltage battery system. This replacement of the high-voltage battery system results in unnecessarily high costs as long as the fuse is triggered by mechanical action from the outside. It is therefore an object of the present invention to provide a fusing system or a high-voltage battery system, which enables: the high-voltage battery system of the electric vehicle does not have to be replaced due to the triggering of the fuse caused by the force action.
US 7219619 and US 5323729 relate to shock indicators, i.e. members adapted to make visible the action of a force.
Disclosure of Invention
Accordingly, the fuse system according to claim 1, comprising a fuse, has the following advantages: a trigger indicator is arranged on the fuse such that the cause of the fuse trigger can be identified from an optical change of the trigger indicator. In this context, the triggering of the fuse is to be understood in particular as the transition from a conductive state to a non-conductive state.
The high voltage battery system for a motor vehicle according to claim 7 has the following advantages: the high-voltage battery system comprises a fuse and a crash indicator, which is designed to change a visible characteristic as a function of a crash acting on the crash indicator.
Advantageous embodiments are the subject matter of the dependent claims.
It is advantageous that: the trigger indicator comprises a temperature indicator, wherein the temperature indicator is set up to: the properties of the surface of the temperature indicator are changed under the effect of heat. Particularly advantageous are temperature indicators which change their color under the action of heat. Particularly advantageous is a temperature indicator which changes its color irreversibly under the influence of temperature, so that, depending on the change in color of the temperature indicator, a temperature influence on the temperature indicator can also be demonstrated afterwards. Advantageously, the temperature indicator is arranged on the fuse such that a thermal action, for example causing a melting of a trigger element of the fuse, causes a change in the surface of the temperature indicator. I.e. the temperature indicator is in close proximity to the fuse or in thermally conductive connection with the fuse.
It is advantageous that: the triggering indicator comprises a collision indicator which is set up to: the visible characteristic is changed in response to an impact applied to the impact indicator.
It is advantageous that: as long as the impact indicator is subjected to an impact that causes an impact above the impact threshold, the color of the impact indicator changes.
If the trigger indicator comprises a temperature indicator, it can be inferred based on a change in the temperature indicator that: the fuse is triggered by the action of heat, that is to say by an excessively high current flowing through the fuse. If the trigger indicator comprises an impact indicator, it can be concluded based on a change in the impact indicator that: fuses are triggered by an external force acting on the ground; the conductive elements of the fuse are broken or fractured by external forces. In both cases, therefore, the triggering due to the current being too high can be distinguished from the triggering due to the external force action, so that by observing the trigger indicator it can be determined that: whether the high-voltage battery system protected by means of the described fusing system has to be replaced.
Also advantageous is a method for operating a high-voltage battery system of a motor vehicle, wherein the high-voltage battery system of the motor vehicle comprises a fuse system according to the invention, wherein after the fuse has been triggered, the triggering indicator is checked, and the fuse system is replaced as a function of the result of the checking of the triggering indicator and the high-voltage battery system is operated with a new fuse system. It is particularly advantageous: as long as the trigger indicator indicates that the cause of the fuse system trigger is not too high of a current flowing through the fuse, the high voltage battery system is operated with the new fuse system, since there is no reason to believe that there is damage within the high voltage battery system indicating replacement of the high voltage battery system.
Drawings
Subsequently, embodiments of the present invention are further described. Here:
fig. 1 shows a schematic view of a vehicle including a high voltage battery pack system.
Detailed Description
Fig. 1 shows a schematic illustration of a motor vehicle (16), in which an electric vehicle may be mentioned in particular. The motor vehicle (16) comprises a high-voltage battery system (18), wherein the high-voltage battery system is to be understood as not only a traction battery but also a 48 volt battery system. A high voltage battery system (18) includes a control unit (14), a fuse (10), and a trigger indicator (12). The fuse (10) and the trigger indicator (12) form a fuse system (13). The trigger indicator (12) can be a temperature indicator and/or a crash indicator, wherein the temperature indicator is designed to permanently change its color as a function of the action of heat. The crash indicator is set up as: permanently changing its color in accordance with the force effect. Preferably, the trigger indicator (12) is located immediately above the fuse (10) so that it is ensured that: the thermal action on the fuse (10) acts in the same way on the trigger indicator (12); or the force acting on the fuse (10) acts on the trigger indicator (12) in the same way. If the trigger indicator (12) is a temperature indicator, it can be concluded based on the color change of the temperature indicator that: the fuse (10) is triggered by the action of heat. Thus, a color change of the temperature indicator indicates an overcurrent within the fuse (10), so that the necessity of changing the high-voltage battery system (18) can be inferred from the color change of the temperature indicator, since an internal short circuit, in particular within the high-voltage battery system (18), may have been the cause of the fuse (10) triggering.
If the trigger indicator (12) comprises an impact indicator, it can be concluded, based on the color change of the impact indicator: the triggered fuse (10) is triggered by an external force. Thus, there is no need to replace the high voltage battery system (18), as the starting points may be: only the fuse (10) is damaged by the force action, so that only the fuse (10) and, if applicable, the associated trigger indicator (12) must be replaced. Therefore, the vehicle (16) can continue to operate with a new fuse system (13) comprising the fuse (10) and the trigger indicator (12).
By using the proposed fuse system (13) or the proposed high voltage battery system (18), repair shop costs may be reduced and unnecessary replacement of the high voltage battery system (18) may be avoided.

Claims (7)

1. A fuse system (13) comprising a fuse (10), characterized in that a trigger indicator (12) is arranged on the fuse (10) such that the cause of the fuse (10) triggering can be identified from an optical change of the trigger indicator (12).
2. The fusing system (13) as claimed in claim 1, characterized in that the trigger indicator (12) comprises a temperature indicator, wherein the temperature indicator is set up to: changing the properties of its surface under the action of heat.
3. A fusing system (13) as claimed in claim 2, characterized in that the color of the temperature indicator changes under the effect of heat.
4. A fuse system (13) according to one of the claims 1 to 3, characterized in that the trigger indicator (12) comprises a shock indicator which is set up to: the visible characteristic is changed in response to an impact applied to the impact indicator.
5. A fuse system (13) according to claim 4, characterized in that the colour of the impact indicator changes as long as the impact indicator is subjected to an impact, which impact causes an impact above an impact threshold.
6. Method for operating a high-voltage battery system (18) of a motor vehicle (16), wherein the high-voltage battery system (18) of the motor vehicle (16) comprises a fuse system (13) according to one of claims 1 to 5, characterized in that after the fuse (10) is triggered, the trigger indicator (12) is checked, and in that, depending on the result of the check of the trigger indicator (12), the fuse system (13) is replaced and the high-voltage battery system (18) is operated with a new fuse system (13).
7. A high-voltage battery system (18) for a motor vehicle (16) comprises a fuse (10) and a crash indicator, which is designed to change a visible characteristic as a function of a crash acting on the crash indicator.
CN201911095405.7A 2018-11-12 2019-11-11 Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof Pending CN111180291A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018219214.6A DE102018219214A1 (en) 2018-11-12 2018-11-12 Fuse protection system, method for operating a high-voltage battery system of a motor vehicle and high-voltage battery system
DE102018219214.6 2018-11-12

Publications (1)

Publication Number Publication Date
CN111180291A true CN111180291A (en) 2020-05-19

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CN201911095405.7A Pending CN111180291A (en) 2018-11-12 2019-11-11 Fusing system, high-voltage battery pack system of motor vehicle and operation method thereof

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DE (1) DE102018219214A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020175800A1 (en) * 2001-05-25 2002-11-28 Dan Stanek Diagnostic blown fuse indicator
US20040000983A1 (en) * 2002-06-26 2004-01-01 John Kennedy Multiple conductor indicator
US20050217558A1 (en) * 2002-06-14 2005-10-06 Fitzer Robert C Shock indicator
CN101103428A (en) * 2004-10-26 2008-01-09 库帕技术公司 Fuse state indicating optical circuit and system
US20090108983A1 (en) * 2007-10-29 2009-04-30 Darr Matthew R Fuse With Fuse State Indicator
CN101514996A (en) * 2008-02-20 2009-08-26 财团法人工业技术研究院 Stress indicator
CN202094063U (en) * 2011-06-15 2011-12-28 何可平 DC (direct current) ultra-fast fuse for electric automobile
US20130002393A1 (en) * 2010-03-18 2013-01-03 Nikola Kopcic Fuse link status indicator for a low-voltage high-power fuse
TWM523683U (en) * 2016-02-05 2016-06-11 Siang Gu Co Ltd Shock impact indicator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323729A (en) 1993-03-15 1994-06-28 Media Recovery, Inc. Crush indicating device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020175800A1 (en) * 2001-05-25 2002-11-28 Dan Stanek Diagnostic blown fuse indicator
US20050217558A1 (en) * 2002-06-14 2005-10-06 Fitzer Robert C Shock indicator
US20040000983A1 (en) * 2002-06-26 2004-01-01 John Kennedy Multiple conductor indicator
CN101103428A (en) * 2004-10-26 2008-01-09 库帕技术公司 Fuse state indicating optical circuit and system
US20090108983A1 (en) * 2007-10-29 2009-04-30 Darr Matthew R Fuse With Fuse State Indicator
CN101514996A (en) * 2008-02-20 2009-08-26 财团法人工业技术研究院 Stress indicator
US20130002393A1 (en) * 2010-03-18 2013-01-03 Nikola Kopcic Fuse link status indicator for a low-voltage high-power fuse
CN202094063U (en) * 2011-06-15 2011-12-28 何可平 DC (direct current) ultra-fast fuse for electric automobile
TWM523683U (en) * 2016-02-05 2016-06-11 Siang Gu Co Ltd Shock impact indicator

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