CN201378603Y - High-power lithium ion battery case - Google Patents
High-power lithium ion battery case Download PDFInfo
- Publication number
- CN201378603Y CN201378603Y CN200920301240U CN200920301240U CN201378603Y CN 201378603 Y CN201378603 Y CN 201378603Y CN 200920301240 U CN200920301240 U CN 200920301240U CN 200920301240 U CN200920301240 U CN 200920301240U CN 201378603 Y CN201378603 Y CN 201378603Y
- Authority
- CN
- China
- Prior art keywords
- metallic plate
- lithium ion
- ion battery
- lower casing
- box cover
- 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.)
- Expired - Lifetime
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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
Abstract
The utility model relates to a battery case, in particular to a high-power lithium ion battery case which comprises a case body and an upper case cover and a lower case cover arranged at two ends of the case body, and is characterized in that the middle parts of the surfaces of the upper case cover and the lower case cover are provided with a plate lug square groove; the side edge of the plate lug square groove on the upper case cover is provided with a lower metal plate; an upper metal plate is arranged above the lower metal plate; plate lugs of two batteries are positioned between the upper metal plate and the lower metal plate; the lower metal plate is fixed with a plurality of nuts, and round holes are arranged at the positions corresponding to the nuts; and bolts pass through the round holes on the upper metal plate, the two plate lugs of the battery and the lower metal plate and then are fixedly connected with the nuts on the lower metal plate in a pressing manner. The high-power lithium ion battery case is characterized by small contact resistance, good heat dispersion performance, simple assembly, high security, simple structure and the like.
Description
Technical field
The utility model relates to a kind of battery case, especially relates to a kind of high-power lithium ion battery box.
Background technology
As everyone knows, lithium-ion-power cell has energy height, good rate capability and advantage such as have extended cycle life, and has become the energy storage device of electric automobile first-selection.Current, the lithium-ion-power cell that is applied to electric automobile can be divided into two kinds mostly: a kind of is the lithium ion battery of high power capacity, and a kind of is high-power lithium ion battery.
At high-power lithium ion battery, a kind of Chinese invention patent of having applied for 200710067515.3 (name is called the high multiplying power lithium ion electrokinetic cell) is arranged at present.The technical scheme of this invention is: a kind of high-multiplying-power battery, be included in the battery list bag, the battery monomer that stacks together successively by plus plate current-collecting body, cathode film, barrier film, negative electrode film, negative current collector, several monolithic spot welding parallel connections are a battery list bag, it is characterized in that: the positive pole ear that is arranged on plus plate current-collecting body one end is incorgruous with the negative lug that is arranged on negative current collector one end, and positive pole ear and negative lug are drawn from the battery two ends.
Because this battery operated current ratio is bigger, as adopt existing high-capacity battery to adorn the box mode, be that lug and interior double-screw bolt are fixed by nut, connect between monomer and the monomer and be connected by metallic braid, contact resistance is big, copper post and connecting band heating are serious, can not satisfy high-power battery heavy-current discharge demand.For cooperating this electricity core to assemble, therefore need new high-power battery box of design, have the internal resistance of connection and minimize, perfect heat-dissipating is assembled advantages such as simple and fail safe height.
Summary of the invention
The utility model mainly is the technical problem big at the existing in prior technology contact resistance, that heating is serious, assembling is complicated, fail safe is low etc., provides that a kind of contact resistance is little, perfect heat-dissipating, simple, the safe high-power lithium ion battery box of assembling.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of high-power lithium ion battery box, the upper box cover and the lower casing that comprise box body and be arranged on the box body two ends, it is characterized in that described upper box cover and lower casing surface middle part is provided with the lug square groove, lug square groove side is provided with down metallic plate on the upper box cover, following metallic plate top is provided with metallic plate, two battery pole ears are arranged between metallic plate and the following metallic plate, be fixed with several nuts on the metallic plate under described, and offer circular hole at the nut correspondence position, pass metallic plate and two battery pole ears and the circular hole and fixedly crimping of following metallic plate top nut on the metallic plate down by bolt.Upper box cover is identical with the structure of lower casing, all offers lug square groove and following metallic plate; The use screw rod passes the screw rod fixing hole on the upper and lower lid during assembling, and metallic plate is added a cover at two ends, and last top nut is fixed, be assembled into the module of required string number, box body is cooperated by two dentations and half detachable box body is formed, and by punching press, makes box body of the fixing formation of two and half box bodys.The lithium ion battery that this structure battery case is housed is when abuse, for example acupuncture, push, overcharge etc. is simulated under the abuse conditions, battery is subjected to the plastic-aluminum combined film rupture to the certain pressure of external force or flatulence, make battery case be out of shape, discharge gas rapidly, the upper and lower covers melted by heat is strutted, energy is released, and can effectively avoid hidden peril of explosion.Simultaneously, this structure battery is multiplying power discharging greatly, and internal resistance is little, and rapid heat dissipation is safe.
As preferably, the two ends of described upper box cover and lower casing offer two insulation board fixing holes respectively.Two insulation board fixing holes that the two ends of upper box cover and lower casing are offered respectively are to be used for fixing insulation board, prevent that lug from exposing contact short circuit.
As preferably, described upper box cover and lower casing surface offer two screw rod fixing holes respectively.All designing on upper box cover and the lower casing has two screw rod fixing holes, can be used for that metal screw is penetrated the fixing some batteries of screw rod fixing hole and becomes module, equips conveniently, uses simply.
As preferably, be provided with reinforcement in described upper box cover and the lower casing.Adopt this kind structure, both made things convenient for snapping in of box body, can guarantee that again box body is being subjected to sidewall when extruding not yielding, simultaneously, lug can the contacting metal box body, prevents that box body is charged.
As preferably, described upper box cover links to each other with box body by snap fastener with lower casing.Equip convenience, be connected firmly.
As preferably, that described upper box cover and lower casing adopt is fire-retardant, the macromolecular material manufacturing of insulation, antistatic, and described box body adopts the metal material manufacturing.That upper box cover and lower casing adopt is fire-retardant, the macromolecular material of insulation and antistatic is made, box body adopts metal material to make, surface treatment has anti-corrosion, insulating barrier, can effectively prevent the metal case corrosion and have insulation function, flame retarded polymeric material has advantages such as intensity is good, insulation, antistatic; Box body adopts metal material, has advantages such as intensity height, rapid heat dissipation.
Therefore, the utlity model has that contact resistance is little, characteristics such as perfect heat-dissipating, assembling are simple, safe, simple in structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Accompanying drawing 2 is a kind of assembling schematic diagrames of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As Figure of description 1, shown in 2, a kind of high-power lithium ion battery box, the upper box cover 2 and the lower casing 3 that comprise box body 1 and be arranged on the box body two ends, upper box cover and middle part, lower casing surface are provided with lug square groove 4, lug square groove side is provided with down metallic plate 5 on the upper box cover, following metallic plate top is provided with metallic plate 7, two battery pole ears 8 are arranged between metallic plate and the following metallic plate, be fixed with several nuts 6 on the following metallic plate, and offer circular hole 12 at the nut correspondence position, pass metallic plate and two battery pole ears and the circular hole and fixedly crimping of following metallic plate top nut on the metallic plate down by bolt 11.Upper box cover and lower casing surface offer two screw rod fixing holes 9 respectively.The two ends of upper box cover and lower casing offer two insulation board fixing holes 10 respectively.Be provided with reinforcement in upper box cover and the lower casing.Upper box cover and lower casing adopt the macromolecular material manufacturing, and upper box cover and lower casing surface are coated with antirust coat, and described box body adopts the metal material manufacturing.
The lid that high-power lithium ion battery box has adopted metal material box body and fire-retardant, insulation, the macromolecular material of antistatic to make is formed.Lid divides goes up lower casing.During assembling lug of battery passed the lug square groove on the upper box cover, folding 90 degree, the other end lug passes box body earlier then, passes the lug square groove of lower casing again, is folded to metallic plate one side on the lid.When the assemble module, can use screw rod to pass four screw rod fixing holes on the upper and lower lid, again two battery pole ears are passed the lug square groove and be folded to metallic plate, on lug, press a metallic plate, the use bolt gets final product, and the cell positive and negative terminal is staggered corresponding, and two ends add iron plate again, last top nut is fixed, and is assembled into the module of required string number.Adopt screw that insulation board is fixed on the lid of module at last.This crimping structure adopts lug directly to be connected with lug, and bigger contact area is provided, and reduces contact resistance, is more suitable for heavy-current discharge.
Claims (6)
1. high-power lithium ion battery box, the upper box cover (2) and the lower casing (3) that comprise box body (1) and be arranged on the box body two ends, it is characterized in that described upper box cover and lower casing surface middle part is provided with lug square groove (4), lug square groove side is provided with down metallic plate (5) on the upper box cover, following metallic plate top is provided with metallic plate (7), two battery pole ears (8) are arranged between metallic plate and the following metallic plate, be fixed with several nuts (6) on the metallic plate under described, and offer circular hole (12) at the nut correspondence position, pass metallic plate and two battery pole ears and the circular hole and fixedly crimping of following metallic plate top nut on the metallic plate down by bolt (11).
2. high-power lithium ion battery box according to claim 1 is characterized in that the two ends of described upper box cover and lower casing offer two insulation board fixing holes (10) respectively.
3. high-power lithium ion battery box according to claim 1 is characterized in that described upper box cover and lower casing surface offer two screw rod fixing holes (9) respectively.
4. according to claim 1 or 2 or 3 described high-power lithium ion battery boxes, it is characterized in that being provided with reinforcement in described upper box cover and the lower casing.
5. according to claim 1 or 2 or 3 described high-power lithium ion battery boxes, it is characterized in that described upper box cover links to each other with box body by snap fastener with lower casing.
6. according to claim 1 or 2 or 3 described high-power lithium ion battery boxes, it is characterized in that described upper box cover and lower casing adopt the macromolecular material manufacturing of fire-retardant, insulation, antistatic, described box body adopts the metal material manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301240U CN201378603Y (en) | 2009-03-13 | 2009-03-13 | High-power lithium ion battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301240U CN201378603Y (en) | 2009-03-13 | 2009-03-13 | High-power lithium ion battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201378603Y true CN201378603Y (en) | 2010-01-06 |
Family
ID=41518722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920301240U Expired - Lifetime CN201378603Y (en) | 2009-03-13 | 2009-03-13 | High-power lithium ion battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201378603Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635336B (en) * | 2009-03-12 | 2011-10-05 | 万向电动汽车有限公司 | High-power lithium ion battery box |
| WO2019183863A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳前海优容科技有限公司 | Battery casing and lithium battery |
-
2009
- 2009-03-13 CN CN200920301240U patent/CN201378603Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635336B (en) * | 2009-03-12 | 2011-10-05 | 万向电动汽车有限公司 | High-power lithium ion battery box |
| WO2019183863A1 (en) * | 2018-03-28 | 2019-10-03 | 深圳前海优容科技有限公司 | Battery casing and lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100106 Effective date of abandoning: 20090313 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100106 Effective date of abandoning: 20090313 |