CN105047498A - Fuse for protecting aluminum-case cells of battery pack of electric car - Google Patents
Fuse for protecting aluminum-case cells of battery pack of electric car Download PDFInfo
- Publication number
- CN105047498A CN105047498A CN201510513493.3A CN201510513493A CN105047498A CN 105047498 A CN105047498 A CN 105047498A CN 201510513493 A CN201510513493 A CN 201510513493A CN 105047498 A CN105047498 A CN 105047498A
- Authority
- CN
- China
- Prior art keywords
- fuse
- melt
- aluminum
- battery
- battery module
- 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
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Classifications
-
- 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
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a fuse for protecting aluminum-case cells of a battery pack of an electric car, and the fuse comprises a conductive piece, fuse bodies disposed at left and right sides of the conductive piece, and a battery connection terminal connected with the fuse bodies. The fuse bodies are provided with a plurality of longitudinally arranged sealing holes, wherein a gap between an upper sealing hole and a lower sealing hole, which are adjacent to each other, forms a storage gap. Plastic cement is injected into the sealing holes, and enables the conductive piece, the fuse bodies and the battery connection terminal to be packaged into one body in a plastic packaging manner. The fuse bodies are wrapped by the plastic cement. The fuse is disposed in a battery module of the electric car, and achieves the protection of each aluminum-case cell in the battery module. When overcurrent or a short-circuit fault happens to one aluminum-case cell in the battery module, the fuse bodies are cut off for the storage gap, thereby protecting other normal aluminum-case cells in the battery module from being damaged, avoiding a driving fault, and guaranteeing the normal running of the electric car.
Description
Technical field
The present invention relates to fuse technologies field, more particularly, particularly relate to a kind of batteries of electric automobile group aluminum-shell battery protection fuse.
Background technology
Existing electric automobile generally adopts lithium battery as power, its battery assembly is made up of numerous aluminum hull ferric phosphate lithium cell usually, according to the difference of battery assembly capacity, in parallel or be composed in series battery module by multiple ferric phosphate lithium cell, then form battery assembly by multiple battery module.
In present stage, the safeguard measure taked battery assembly only on the major loop of battery assembly, uses fuse protected, and when battery assembly breaks down, fuse fuses in time and cuts off battery major loop, protection vehicle and personal security.Because battery assembly is made up of numerous ferric phosphate lithium cells, when certain ferric phosphate lithium cell wherein goes wrong or is short-circuited fault, the normal use of whole battery module and battery assembly can be affected, cause electric automobile to cast anchor, even cause fiery exploding time serious and wait severe safety problem.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, provide a kind of batteries of electric automobile group aluminum-shell battery protection fuse, this fuse is arranged in the battery module of electric automobile, protects each aluminum-shell battery in battery module.
For achieving the above object; the technical solution used in the present invention is: a kind of batteries of electric automobile group aluminum-shell battery protection fuse; the cell connection terminal comprising conducting strip, be connected to the melt of the conducting strip left and right sides, be connected with melt; melt is provided with the sealing hole of some longitudinal arrangements; hole between two neighbouring sealing holes is formed as having jurisdiction over footpath; in sealing hole, mould filling has plastic cement; plastic cement is by conducting strip, melt and cell connection terminal plastic packaging in one, and melt is wrapped in plastic cement.
Present invention also offers a kind of battery module for electric automobile being provided with above-mentioned fuse; multiple aluminum-shell battery is provided with in described battery module; described fuse is in series with between the positive and negative electrode of adjacent two aluminum-shell batteries; two cell connection terminals of described fuse are electrically connected with the positive and negative electrode of two aluminum-shell batteries adjacent in battery module respectively with welding manner or pole connected mode, realize thus protecting each aluminum-shell battery in battery module.
Invention further provides a kind of electric automobile, this electric automobile have employed above-mentioned battery module.
Compared with prior art; advantage of the present invention is: because each aluminum-shell battery in battery module of electric vehicle is equipped with fuse protection; when certain aluminum-shell battery wherein there is current overload or be short-circuited fault time; the melt of fuse disconnects from linchpin footpath; the operating loop of the abnormal aluminum-shell battery of timely cut-out; other normal aluminum-shell battery in battery module belonging to it is protected to avoid damaging; avoid causing driving faults; prevent electric automobile from casting anchor, the safety problem such as blast on fire, ensure the normal traveling of electric automobile.
Accompanying drawing explanation
Structural representation when Fig. 1 is the non-sealing of one of embodiment of the present invention;
Fig. 2 is the structural representation after sealing embodiment illustrated in fig. 1;
Structural representation when Fig. 3 is two non-sealing of the embodiment of the present invention;
Fig. 4 is the structural representation after sealing embodiment illustrated in fig. 3;
Fig. 5 and Fig. 6 be respectively one of embodiment of the present invention and two be arranged on schematic diagram in battery module.
In figure: 1-fuse; 11-conducting strip; 12-melt; 121-sealing hole; 122-has jurisdiction over footpath; 13-cell connection terminal; 131 bonding pads; 132-gap; 133-battery solder joint; 134-pole installing hole; 14-plastic cement; 2-battery module; 21-aluminum-shell battery.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but do not form any limitation of the invention.
embodiment 1
As depicted in figs. 1 and 2, the batteries of electric automobile group aluminum-shell battery protection fuse 1 that embodiment 1 provides, comprise conducting strip 11, be connected to the melt 12 of conducting strip 11 left and right sides, the cell connection terminal 13 be connected with melt 12, melt 12 is provided with the sealing hole 121 of some longitudinal arrangements, hole between two neighbouring sealing holes 121 is formed as having jurisdiction over footpath 122, the rated current of fuse is controlled by linchpin footpath 122, in sealing hole 121, mould filling has plastic cement 14, plastic cement 14 is by conducting strip 11, melt 12 and cell connection terminal 13 plastic packaging are in one, melt 12 is wrapped in plastic cement 14.
Described cell connection terminal 13 is be connected to horizontally disposed strip bonding pad 131 on melt 12 for a pair, an elongated gap 132 is formed between two bonding pads 131, when running car produces vibration, it is stressed that gap 132 makes cell connection terminal 13 can better alleviate in vibration, described two bonding pads 131 is respectively provided with the battery solder joint 133 of at least one welding.
embodiment 2
As shown in Figure 3 and Figure 4; the batteries of electric automobile group aluminum-shell battery protection fuse 1 that embodiment 2 provides; the structure of its conducting strip 11 and melt 12 is identical with embodiment 1; difference is: described cell connection terminal 13 is for being connected to the square conducting strip on melt 12, and described conducting strip is provided with pole installing hole 134.
Conducting strip 11 in fuse of the present invention and cell connection terminal 13 all adopt metallic nickel material to make, and can certainly adopt other welding metal material, as copper etc.; Melt 12 adopts the low melting point composition metal material of nickel, aluminium, zinc to make, to guarantee the agreement operating chacteristics of fuse.
As one application of the present invention, be arranged in the battery module of electric automobile, each battery in battery module protected, as shown in Figure 5 and Figure 6.
Fig. 5 is fuse shown in embodiment 1 is arranged in battery module schematic diagram with welding manner; described welding manner is connected with the positive and negative electrode pole piece spot welding of two aluminum-shell batteries 21 adjacent in battery module 2 respectively by battery solder joint 133 by two cell connection terminals 13 of fuse 1; by fuse 1, the multiple side's body ferric phosphate lithium cells 21 in battery module 2 are together in series, and each aluminum-shell battery 21 is protected.
Fig. 6 is fuse shown in embodiment 2 is arranged in battery module schematic diagram with pole connected mode; described pole connected mode is fixedly connected with the positive and negative electrode pole of two aluminum-shell batteries 21 adjacent in battery module 2 respectively by pole installing hole 134 fitted bolt by two cell connection terminals 13 of fuse 1; by fuse 1, the multiple aluminum-shell batteries 21 in battery module 2 are together in series, and each aluminum-shell battery 21 is protected.
When certain aluminum-shell battery 21 in battery module 2 there is current overload or be short-circuited fault time; the big current flowing through melt 12 makes its temperature raise; when temperature reaches the molten time point of melt 12; melt 12 disconnects from linchpin footpath 122; thus cutting off the operating loop of abnormal aluminum-shell battery 21, in protection battery module 2, other normal aluminum-shell battery 21 avoids damaging, and avoids causing driving faults; prevent electric automobile from casting anchor, the safety problem such as blast on fire, ensure the normal traveling of electric automobile.
Certainly; the present invention can also have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (6)
1. a batteries of electric automobile group aluminum-shell battery protection fuse; it is characterized in that: the cell connection terminal comprising conducting strip, be connected to the melt of the conducting strip left and right sides, be connected with melt; melt is provided with the sealing hole of some longitudinal arrangements; hole between two neighbouring sealing holes is formed as having jurisdiction over footpath; in sealing hole, mould filling has plastic cement; plastic cement is by conducting strip, melt and cell connection terminal plastic packaging in one, and melt is wrapped in plastic cement.
2. fuse according to claim 1, is characterized in that: described conducting strip and cell connection terminal all adopt metallic nickel material to make, and described melt adopts the low melting point composition metal material of nickel, aluminium, zinc to make.
3. fuse according to claim 1, it is characterized in that: described cell connection terminal is be connected to horizontally disposed strip bonding pad on melt for a pair, between two bonding pads, be formed with an elongated gap, described two bonding pads be respectively provided with the battery solder joint of at least one welding.
4. fuse according to claim 1, is characterized in that: described cell connection terminal is the square conducting strip be connected on melt, and described conducting strip is provided with pole installing hole.
5. a battery module for electric automobile, multiple aluminum-shell battery is provided with in described battery module, it is characterized in that: be in series with the fuse according to any one of claim 1-4 between the positive and negative electrode of described adjacent two aluminum-shell batteries, two cell connection terminals of described fuse are electrically connected with the positive and negative electrode of two aluminum-shell batteries adjacent in battery module respectively with welding manner or pole connected mode.
6. an electric automobile, is characterized in that: described electric automobile have employed battery module as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513493.3A CN105047498A (en) | 2015-08-20 | 2015-08-20 | Fuse for protecting aluminum-case cells of battery pack of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513493.3A CN105047498A (en) | 2015-08-20 | 2015-08-20 | Fuse for protecting aluminum-case cells of battery pack of electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105047498A true CN105047498A (en) | 2015-11-11 |
Family
ID=54453954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510513493.3A Pending CN105047498A (en) | 2015-08-20 | 2015-08-20 | Fuse for protecting aluminum-case cells of battery pack of electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105047498A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159176A (en) * | 2016-08-17 | 2016-11-23 | 浙江泓源汽车集团有限公司 | Negative pole welding positive pole is from the complete module of fuse protection |
| CN107305938A (en) * | 2016-04-25 | 2017-10-31 | 比亚迪股份有限公司 | Cell connector, battery modules and electrokinetic cell bag |
| CN110957459A (en) * | 2019-11-13 | 2020-04-03 | 新盛力科技股份有限公司 | Battery module |
| WO2023004312A1 (en) * | 2021-07-20 | 2023-01-26 | Milwaukee Electric Tool Corporation | Battery pack |
| JP2023074272A (en) * | 2021-11-17 | 2023-05-29 | プライムプラネットエナジー＆ソリューションズ株式会社 | battery module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004002191U1 (en) * | 2004-02-12 | 2004-04-15 | Delphi Technologies, Inc., Troy | Fuse arrangement for circuits of vehicles, holds series of fuses to common rail by jointed attachment |
| CN102129936A (en) * | 2011-01-26 | 2011-07-20 | 上海长园维安电子线路保护股份有限公司 | Process for manufacturing thin-type temperature fuse with cushion layer |
| CN102222883A (en) * | 2011-06-28 | 2011-10-19 | 上海广为美线电源电器有限公司 | Automatic over-current and short-circuit protecting and restoring circuit of jump start power |
| CN102867713A (en) * | 2011-07-05 | 2013-01-09 | 库柏技术公司 | Electric fuse with torque restricting terminals |
| US20150050531A1 (en) * | 2012-03-05 | 2015-02-19 | Husqvarna Ab | Battery cell connector |
| JP5675859B2 (en) * | 2013-01-28 | 2015-02-25 | 太平洋精工株式会社 | fuse |
| CN204927218U (en) * | 2015-08-20 | 2015-12-30 | 武汉标迪电子科技有限公司 | Fuse is used in protection of aluminum -shell battery of batteries of electric vehicle group |
-
2015
- 2015-08-20 CN CN201510513493.3A patent/CN105047498A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004002191U1 (en) * | 2004-02-12 | 2004-04-15 | Delphi Technologies, Inc., Troy | Fuse arrangement for circuits of vehicles, holds series of fuses to common rail by jointed attachment |
| CN102129936A (en) * | 2011-01-26 | 2011-07-20 | 上海长园维安电子线路保护股份有限公司 | Process for manufacturing thin-type temperature fuse with cushion layer |
| CN102222883A (en) * | 2011-06-28 | 2011-10-19 | 上海广为美线电源电器有限公司 | Automatic over-current and short-circuit protecting and restoring circuit of jump start power |
| CN102867713A (en) * | 2011-07-05 | 2013-01-09 | 库柏技术公司 | Electric fuse with torque restricting terminals |
| US20150050531A1 (en) * | 2012-03-05 | 2015-02-19 | Husqvarna Ab | Battery cell connector |
| JP5675859B2 (en) * | 2013-01-28 | 2015-02-25 | 太平洋精工株式会社 | fuse |
| CN204927218U (en) * | 2015-08-20 | 2015-12-30 | 武汉标迪电子科技有限公司 | Fuse is used in protection of aluminum -shell battery of batteries of electric vehicle group |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107305938A (en) * | 2016-04-25 | 2017-10-31 | 比亚迪股份有限公司 | Cell connector, battery modules and electrokinetic cell bag |
| CN106159176A (en) * | 2016-08-17 | 2016-11-23 | 浙江泓源汽车集团有限公司 | Negative pole welding positive pole is from the complete module of fuse protection |
| CN110957459A (en) * | 2019-11-13 | 2020-04-03 | 新盛力科技股份有限公司 | Battery module |
| WO2023004312A1 (en) * | 2021-07-20 | 2023-01-26 | Milwaukee Electric Tool Corporation | Battery pack |
| JP2023074272A (en) * | 2021-11-17 | 2023-05-29 | プライムプラネットエナジー＆ソリューションズ株式会社 | battery module |
| JP7455793B2 (en) | 2021-11-17 | 2024-03-26 | プライムプラネットエナジー＆ソリューションズ株式会社 | battery module |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
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| WD01 | Invention patent application deemed withdrawn after publication |