CN106654140A - Sampling wire, sampling wire harness, battery management system and automobile - Google Patents
Sampling wire, sampling wire harness, battery management system and automobile Download PDFInfo
- Publication number
- CN106654140A CN106654140A CN201610877765.2A CN201610877765A CN106654140A CN 106654140 A CN106654140 A CN 106654140A CN 201610877765 A CN201610877765 A CN 201610877765A CN 106654140 A CN106654140 A CN 106654140A
- Authority
- CN
- China
- Prior art keywords
- sampling
- wire harness
- conductor
- meltable
- meltable part
- 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
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 97
- 239000004020 conductor Substances 0.000 claims description 45
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 11
- JWVAUCBYEDDGAD-UHFFFAOYSA-N bismuth tin Chemical group [Sn].[Bi] JWVAUCBYEDDGAD-UHFFFAOYSA-N 0.000 claims description 4
- 229910000743 fusible alloy Inorganic materials 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
-
- 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
The invention relates to a sampling wire, a sampling wire harness, a battery management system and an automobile. The sampling wire comprises a fusible portion positioned at one end of the sampling wire, and the fusible portion is fused first during shorting out; the sampling wire harness at least comprises two sampling wires; the battery management system uses the sampling wire harness to collect information of a battery pack, and the fusible portions of the sampling wires in the sampling wire harness are connected with sampling points of the battery pack; the automobile uses the battery management system to manage a battery system. Damage caused when an automobile battery pack voltage sampling system is in an external short circuit can be effectively reduced.
Description
Technical field
The present invention relates to automotive field, in particular to a kind of sampling line, sampling wire harness, battery management system and automobile.
Background technology
In recent years, stimulated by national new forms of energy policy, the volume of production and marketing of electric automobile occurs in that explosive growth, electronic vapour
Car has also obtained the generally accreditation of people.But with the continuous improvement of battery system energy density, the electricity that car load is loaded is more next
It is more, to the management work of battery system will deeper into, it is careful, it is desirable to be able to monitor voltage, temperature, the pressure of cell
Monomer voltage gathering line, electricity are distributed in the information, therefore battery system such as electric current, the temperature difference of the information such as change and battery system
Pond temperature acquisition line, battery system heater wire, even there is cell pressure gathering line.
Existing battery data acquisition has two ways, and a kind of is the mode of the installation printed circuit board in battery modules,
The data message of battery is collected by the circuit on circuit board；Another kind is directly to be welded or bolted to data acquisition line
On conductive connecting piece between monomer.The most latter approach for adopting of prior art, it is common practice to be fabricated to gathering line
Wire harness, is then connected to battery management system from plate by low pressure connector.This way is with low cost, but works as cell tube
Reason system breaks down from plate voltage sampling circuit, the damaged contact of adjacent voltage sample line or connector of sampling enter water etc.
The liquid of electric conductivity, it will make battery pass through sampling line and constitute external short circuit, short circuit current can make sampling wire harness generate heat, cause to adopt
Line-transect crust melts to form greater area of short circuit, and then forms the thermal runaway in battery bag, causes battery to smolder, catch fire even
The accidents such as blast.
The content of the invention
The present invention provides a kind of sampling line, sampling wire harness, battery management system and automobile and passes through solving automobile batteries group
Sampling line constitutes external short circuit, and then the problem of damage car battery pack.
One kind sampling line, including conductor and insulating barrier, the conductor includes conductor main body portion and meltable part, described easy
Molten part is one section of conductive fusible metal or alloy, is connected to one end of conductor；In the case of being short-circuited, meltable part takes the lead in
Fusing.
Further, the meltable part is welded on one end of the conductor main body portion；
Further, the length of the meltable part is 5-15mm；
Further, the meltable part is bismuth tin fusible alloy.
One kind sampling wire harness, including at least two sampling lines, the sampling line includes conductor and insulating barrier, the conductor bag
Conductor main body portion and meltable part are included, the meltable part is one section of conductive fusible metal or alloy, is connected to the one of conductor
End；In the case of being short-circuited, meltable part takes the lead in fusing.
Further, the meltable part is welded on one end of conductor main body portion；
Further, the sampling line sampled in wire harness is bundled by band；
Further, the peripheral of wire harness of sampling wraps up matcoveredn.
A kind of battery management system, including for gathering the sampling wire harness of battery pack information, the sampling wire harness is at least wrapped
Two sampling lines are included, the sampling line includes conductor and insulating barrier, and the conductor includes conductor main body portion and meltable part, institute
It is one section of conductive fusible metal or alloy to state meltable part, is connected to one end of conductor；In the case of being short-circuited, meltable part
Take the lead in fusing；Sample in the sampling wire harness meltable part of line is used to be connected with the sampled point in battery pack, main part and battery
The battery information sampling plate connection of management system.
A kind of automobile, including battery management system, the battery management system is included for gathering adopting for battery pack information
Line-transect beam, the sampling wire harness includes at least two sampling lines, and the sampling line includes core and insulating barrier, and the conductor includes
Conductor main body portion and meltable part, the meltable part is one section of conductive fusible metal or alloy, is connected to one end of conductor；
In the case of being short-circuited, meltable part takes the lead in fusing.
The invention provides a kind of sampling line for including one section of fusible metal or alloy, the sampling line can occur in circuit
During short trouble from meltable part take the lead in fusing, and then in protection circuit other parts safety；Battery pack profit in electric automobile
The sampling wire harness collection battery pack information constituted with this sampling line, wherein, the meltable part of sampling line connects with battery pack sampled point
Connect, so can effectively reduce the loss for constituting external short circuit and causing by line of sampling because of battery pack.
Description of the drawings
Fig. 1 is sampling cable architecture schematic diagram；
Fig. 2 is sampling wiring harness structure schematic diagram；
Fig. 3 is battery management system schematic diagram；
Fig. 4 is sampling line and the concrete connection diagram of battery pack.
Specific embodiment
The invention provides a kind of sampling line, sampling wire harness, battery management system and automobile, wherein a kind of sampling of sampling line
Line, including conductor and insulating barrier, the conductor includes conductor main body portion and meltable part, and the meltable part is one section of conduction
Fusible metal or alloy, are connected to one end of conductor；In the case of being short-circuited, meltable part takes the lead in fusing.The sampling line
Beam includes at least two above-mentioned sampling lines；The battery management system includes above-mentioned sampling wire harness；The automobile includes above-mentioned electricity
Pond management system.
Below in conjunction with the accompanying drawings the present invention will be further described in detail.
The embodiment of sampling line
As shown in figure 1, sampling line includes conductor and insulating barrier 3, wherein conductor includes conductor main body portion 2 and meltable part
1.Conductor main body portion can be common copper conductor, and meltable part can be conductive meltable metal or alloy, and such as bismuth tin is low
Melting alloy, the length of meltable part is about 5-15mm, and both are by welding or are otherwise attached to together.Occurring
Under short-circuit conditions, because each position conductive capability of conductor is different, meltable part 1 will take the lead in fusing when high current is undergone.
The embodiment of sampling wire harness
As shown in Fig. 2 sampling wire harness includes at least two by sampling line, sampling line includes conductor and insulating barrier, wherein leading
Body includes one section of meltable part.The length of meltable part is about 5-15mm, can be conductive meltable metal or alloy, such as bismuth
Tin low-melting alloy.In the case of being short-circuited, because each position conductive capability of conductor is different, high current is being undergone in meltable part
When will take the lead in fusing.
Sampling line in sampling wire harness can all be bundled by band 6, it is also possible to by little band 6 ' by several one
Group is separately bundled.The thin meltable part of line footpath is respectively positioned on same one end of sampling wire harness in sampling line.
The embodiment of battery management system
As shown in figure 3, battery management system carries out intelligence sample to multiple batteries, wherein 7 are sampling wire harness, for for electric
Pond management system 8 gather battery pack 4 information, its periphery be enclosed with flexible metal conduit 9 or other have wire harness protection act on guarantor
Sheath.When wire harness 7 of sampling forms external short circuit because of reasons such as insulated hull abrasive contacts in short dot 5, short circuit current can cause
Wire harness temperature is raised rapidly, and the meltable part of line of now sampling can take the lead in fusing, and short-circuit loop disconnects, so as to protect the peace of battery pack
Entirely.
Fig. 4 is the partial enlarged drawing of 10 indication parts in Fig. 3, as illustrated, battery management system is using sampling wire harness
When the voltage or current information of collection battery pack, with line of sampling per three as one group, the information of two pieces of batteries is gathered, wherein one
It is connected with the positive pole of battery B1, one is connected with the negative pole of battery B2, one is connected with the connection sheet being connected between two pieces of batteries,
Or be connected with B1 negative poles/B2 positive poles, the fusible metal or alloy component of line of sampling are connected with the sampled point of battery pack；Meltable portion
The mode being connected with battery pack is divided to be welding, grafting or other electric connection modes.
The embodiment of automobile
A kind of automobile, including the battery management system of the sampling wire harness with short-circuit protection function, in automobile batteries group Jing
When sampling line forms external short circuit, can avoid being subject to bigger loss.The short-circuit protection work(that automobile batteries management system has
The principle of energy is discussed in detail in above-mentioned enforcement, is repeated no more here.
Claims (10)
1. a kind of sampling line, including conductor and insulating barrier, it is characterized by：The conductor includes conductor main body portion and meltable portion
Point, the meltable part is one section of conductive fusible metal or alloy, is connected to one end of conductor；In the case of being short-circuited, easily
Molten part takes the lead in fusing.
2. a kind of sampling line according to claim 1, it is characterized by：The meltable part is welded on the conductor main body portion
The one end divided.
3. a kind of sampling line according to claim 1, it is characterized by：The length of the meltable part is 5-15mm.
4. a kind of sampling line according to claim 1, it is characterized by：The meltable part is bismuth tin fusible alloy.
5. a kind of sampling wire harness, including at least two sampling lines, the sampling line includes conductor and insulating barrier, it is characterized by：Institute
Conductor is stated including conductor main body portion and meltable part, the meltable part is one section of conductive fusible metal or alloy, is connected to
One end of conductor；In the case of being short-circuited, meltable part takes the lead in fusing.
6. sampling wire harness according to claim 5, it is characterized by：The meltable part is welded on the one of conductor main body portion
End.
7. sampling wire harness according to claim 5, it is characterized by：Sampling line in sampling wire harness is bundled in one by band
Rise.
8. sampling wire harness according to claim 5, it is characterized by：The periphery parcel matcoveredn of sampling wire harness.
9. a kind of battery management system, including for gathering the sampling wire harness of battery pack information, the sampling wire harness at least includes
Two sampling lines, the sampling line includes conductor and insulating barrier, it is characterized by：The conductor includes conductor main body portion and meltable
Part, the meltable part is one section of conductive fusible metal or alloy, is connected to one end of conductor；In the case of being short-circuited,
Meltable part takes the lead in fusing；The meltable part of sampling line is used to be connected with the sampled point in battery pack in sampling wire harness, main part
Divide and be connected with the battery information sampling plate of battery management system.
10. a kind of automobile, including battery management system, the battery management system includes the sampling for gathering battery pack information
Wire harness, the sampling wire harness includes at least two sampling lines, and the sampling line includes core and insulating barrier, it is characterized by：It is described
Conductor includes conductor main body portion and meltable part, and the meltable part is one section of conductive fusible metal or alloy, is connected to and leads
One end of body；In the case of being short-circuited, meltable part takes the lead in fusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877765.2A CN106654140A (en) | 2016-10-08 | 2016-10-08 | Sampling wire, sampling wire harness, battery management system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877765.2A CN106654140A (en) | 2016-10-08 | 2016-10-08 | Sampling wire, sampling wire harness, battery management system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654140A true CN106654140A (en) | 2017-05-10 |
Family
ID=58854422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610877765.2A Pending CN106654140A (en) | 2016-10-08 | 2016-10-08 | Sampling wire, sampling wire harness, battery management system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654140A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020811A (en) * | 1995-02-21 | 2000-02-01 | Hitachi, Ltd. | Apparatus for multiplexing between on-board units in a vehicle |
| CN1881654A (en) * | 2005-06-16 | 2006-12-20 | 比亚迪股份有限公司 | Battery pack of electric vehicle |
| CN102610778A (en) * | 2011-01-24 | 2012-07-25 | 刘吉平 | Safe protection device for battery pack |
| CN205103385U (en) * | 2015-11-17 | 2016-03-23 | 北京新能源汽车股份有限公司 | A sampling circuit and vehicle for on -vehicle battery |
| CN206259435U (en) * | 2016-10-08 | 2017-06-16 | 郑州宇通客车股份有限公司 | Sampling line, sampling wire harness, battery management system and automobile |
-
2016
- 2016-10-08 CN CN201610877765.2A patent/CN106654140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020811A (en) * | 1995-02-21 | 2000-02-01 | Hitachi, Ltd. | Apparatus for multiplexing between on-board units in a vehicle |
| CN1881654A (en) * | 2005-06-16 | 2006-12-20 | 比亚迪股份有限公司 | Battery pack of electric vehicle |
| CN102610778A (en) * | 2011-01-24 | 2012-07-25 | 刘吉平 | Safe protection device for battery pack |
| CN205103385U (en) * | 2015-11-17 | 2016-03-23 | 北京新能源汽车股份有限公司 | A sampling circuit and vehicle for on -vehicle battery |
| CN206259435U (en) * | 2016-10-08 | 2017-06-16 | 郑州宇通客车股份有限公司 | Sampling line, sampling wire harness, battery management system and automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106205029B (en) | A kind of power battery thermal runaway automatic alarm device and method | |
| CN106299223B (en) | battery module | |
| EP2596539B1 (en) | Current collecting terminal for electrochemical cells | |
| WO2021098805A1 (en) | Battery pack and vehicle | |
| KR101929061B1 (en) | Current collecting terminal for electrochemical cells | |
| CN104051702A (en) | Safety element for battery cell | |
| CN206259435U (en) | Sampling line, sampling wire harness, battery management system and automobile | |
| WO2023071876A1 (en) | Power battery | |
| CN106935781B (en) | Battery pack connection method | |
| CN103094790A (en) | Current connector capable of automatically disconnecting under high temperature | |
| CN1356739A (en) | Li accumulator structure with improved heat transfer | |
| CN206116508U (en) | Group battery voltage acquisition device | |
| CN206313070U (en) | One kind sampling line, sampling wire harness, battery management system and automobile | |
| CN204167509U (en) | A kind of Shunt Capacitor Unit lead-in wire and aluminium bar connecting device | |
| CN107482140A (en) | A kind of battery cover board of external dual fail-safe protection device | |
| CN112234296B (en) | Battery cell and battery module | |
| WO2023231880A1 (en) | Power battery system for a vehicle and thermal assessment method | |
| CN106463790A (en) | Electrical connector for a battery module | |
| CN106654140A (en) | Sampling wire, sampling wire harness, battery management system and automobile | |
| CN215680898U (en) | Collection assembly and battery module | |
| CN108879118B (en) | Monitoring assembly and power supply device | |
| CN105529697A (en) | OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable lightning protection apparatus mounted on parapet wall | |
| CN213023492U (en) | Thermal runaway detection device for battery pack | |
| CN203481330U (en) | Safety device of lithium battery pack | |
| US20140057146A1 (en) | Battery and Motor Vehicle |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |