CN209607768U - Power battery electrode core insulation safeguard structure - Google Patents
Power battery electrode core insulation safeguard structure Download PDFInfo
- Publication number
- CN209607768U CN209607768U CN201920620004.8U CN201920620004U CN209607768U CN 209607768 U CN209607768 U CN 209607768U CN 201920620004 U CN201920620004 U CN 201920620004U CN 209607768 U CN209607768 U CN 209607768U
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- CN
- China
- Prior art keywords
- pole piece
- interconnecting piece
- power battery
- piece
- hole
- 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 - Fee Related
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Classifications
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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
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- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to power battery fields, disclose a kind of power battery electrode core insulation safeguard structure, protective film including protecting pole piece, protective film includes two parts corresponding with pole piece two big face respectively, two parts are connected by interconnecting piece, interconnecting piece is corresponding with the bottom surface of pole piece, two parts extend to form two sides to two sides respectively, when two parts fold vertical with interconnecting piece, the side of two side connection package pole pieces, interconnecting piece is equipped with and the matched bottom plate of interconnecting piece, interconnecting piece is equipped with several first through hole, bottom plate is equipped with several second through-holes, first through hole is connected to the second through-hole one-to-one correspondence.The utility model power battery electrode core insulation safeguard structure amount enables electrolyte quickly and effectively to infiltrate pole piece while preventing pole piece from directly contacting generation short circuit with aluminum hull.
Description
Technical field
The utility model relates to power battery fields, and in particular to a kind of power battery electrode core insulation safeguard structure.
Background technique
For power battery in assembling process, pole piece surface can adhere to a small amount of dust, and aluminum hull inner wall also has a little burr, In
During pole piece sheath body, pole piece is directly contacted with aluminum hull inner wall, and diaphragm is easily scratched, and causes pole piece to contact with aluminum hull short
Road, to generate serious security risk, it is therefore desirable to which insulating protection is carried out to pole piece.
Common insulation protection measure is the insulating tape or layer protecting film more in pole piece surrounding packet, this method
Under the premise of guaranteeing to protect intensity pole piece is wrapped up relatively tight, although when its sheath body can be effectively prevented with aluminum hull inner wall
It directly contacts, protects pole piece, prevent its short circuit, but more tight due to wrapping up pole piece, electrolyte is difficult to operatively infiltrate pole
Core, causes pole piece infiltrating time to increase, and effect of impregnation is not very good.
Summary of the invention
The purpose of this utility model provides a kind of power battery electrode core insulation protection knot aiming at the deficiency of above-mentioned technology
Structure amount enables electrolyte quickly and effectively to infiltrate pole piece while preventing pole piece from directly contacting generation short circuit with aluminum hull.
To achieve the above object, power battery electrode core insulation safeguard structure designed by the utility model, including protection pole
The protective film of core, the protective film includes first part corresponding with the pole piece two big face and second part respectively, described
First part is connect with second part by interconnecting piece, and the interconnecting piece is corresponding with the bottom surface of the pole piece, the first part
Two the first sides are extended to form to two sides, the second part extends to form two the second sides to two sides, and described first
Point and second part fold it is vertical with the interconnecting piece when, first side connect with second side wrap up described in
One side of pole piece, another described first side connect another side for wrapping up the pole piece with another second side
Face, the interconnecting piece be equipped with the matched bottom plate of the interconnecting piece, the interconnecting piece be equipped with several first through hole, it is described
Bottom plate is equipped with several second through-holes, and the first through hole is connected to the second through-hole one-to-one correspondence.
Preferably, the width of first side is not less than the half of the interconnecting piece width, the width of second side
Degree is greater than the half of the interconnecting piece width keeps first side and second side more preferable when the protective film folds
Connection, insulating properties is more preferable.
Preferably, first side extends outward to form fusing department, when the protective film folds, the fusing department melting
On second side, better tightness, insulating properties is also more preferable.
Preferably, the first through hole equidistant arrangement on the interconnecting piece, the second through-hole equidistant arrangement on the bottom plate, makes
Electrolyte more rapidly effectively infiltrates the pole piece.
Preferably, the bottom plate with a thickness of the protection 3~4 times of film thickness, protect the pole piece bottom not with aluminium
The contact of shell bottom end, effectively supports the pole piece, prevents the pole piece from generating because of vibration and pull deformation.
The utility model compared with prior art, has the advantage that
1, the bottom plate of protective film and protection pole piece bottom surface including the big face of protection pole piece and side, to pole during sheath body
Core carries out full protection, and effective protection pole piece prevents pole piece to be scraped off and short-circuit in sheath body process septation；
2, the interconnecting piece of protective film and contacts baseplate position aperture design, enter inside pole piece conducive to electrolyte, make to be electrolysed
Liquid fast and effeciently infiltrates pole piece；
3, bottom plate thickeies design, protects pole piece bottom not contact with aluminum hull bottom end, while can effectively support pole piece, prevents pole
Core is generated because of vibration pulls deformation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model Battery Pole Core insulating protection structure；
Fig. 2 is the structural schematic diagram of protective film in Fig. 1；
Fig. 3 is the structural schematic diagram of Fig. 1 insole board；
Fig. 4 is the schematic diagram that the utility model wraps up pole piece；
Fig. 5 is the side view of Fig. 4.
Each part numbers are as follows in figure:
Pole piece 1, protective film 2, first part 3, second part 4, interconnecting piece 5, the first side 6, the second side 7, bottom plate 8,
First through hole 9, the second through-hole 10, fusing department 11, cover board 12.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, Figure 2 and Figure 3, the utility model power battery electrode core insulation safeguard structure, including protection pole piece 1
Protective film 2, protective film 2 include first part 3 corresponding with pole piece 1 two big face and second part 4 respectively, first part 3 and
Second part 4 is connected by interconnecting piece 5, and interconnecting piece 5 is corresponding with the bottom surface of pole piece 1, and first part 3 extends to form two to two sides
First side 6, second part 4 extend to form two the second sides 7 to two sides, and first part 3 and second part 4 are folded and connect
When portion 5 is vertical, first side 6 connect a side of package pole piece 1, another first side 6 with second side 7
Connect with another second side 7 package pole piece 1 another side, interconnecting piece 5 be equipped with the matched bottom plate 8 of interconnecting piece 5,
Interconnecting piece 5 is equipped with several first through hole 9, and bottom plate 8 is equipped with several second through-holes 10, first through hole 9 and the second through-hole
10 correspond connection.
In addition, the width of the first side 6 is not less than the half of 5 width of interconnecting piece, the width of the second side 7 is greater than interconnecting piece
The half of 5 width, the first side 6 extend outward to form fusing department 11, and when protective film 2 folds, fusing department 11 is melted in second
On side 7, better tightness, insulating properties is also more preferable.
Meanwhile as shown in Figures 2 and 3, in the present embodiment, 9 equidistant arrangement of first through hole on interconnecting piece 5, on bottom plate 8
Second through-hole, 10 equidistant arrangement makes electrolyte more rapidly effectively infiltrate pole piece 1.
In the present embodiment, bottom plate 8 with a thickness of 0.5mm, protective film 2 with a thickness of 0.15mm, by adding to bottom plate 8
Thickness design, 1 bottom of effective protection pole piece are not contacted with aluminum hull bottom end, are supported pole piece 1, are prevented pole piece 1 from generating because of vibration and pull
Deformation.
When the present embodiment is in use, before wrapping up pole piece 1, bottom plate 8 and interconnecting piece 5 are welded together using hot melt,
It is connected to the first through hole 9 on interconnecting piece 5 with the second through-hole 10 one-to-one correspondence on bottom plate 8, is then placed on pole piece 1
On bottom plate 8, as shown in Figure 4 and Figure 5, the first part 3 of protective film 2 and second part 4 are folded up, while by fusing department 11
Be melted on the second side 7, wrap the surrounding of pole piece 1, finally by 2 upper end sweat soldering of protective film cover board 12 spacer ring
On.
The utility model power battery electrode core insulation safeguard structure include protect the big face of pole piece 1 and side protective film 2 and
The bottom plate 8 for protecting 1 bottom surface of pole piece, carries out full protection to pole piece 1 during sheath body, and effective protection pole piece 1 prevents pole piece 1
It is scraped off and short-circuit in sheath body process septation；Meanwhile it being set by the interconnecting piece of protective film 25 and 8 contact position aperture of bottom plate
Meter, enters inside pole piece 1 conducive to electrolyte, electrolyte is made fast and effeciently to infiltrate pole piece 1；In addition, being set by the thickening of bottom plate 8
Meter, protects 1 bottom of pole piece not contact with aluminum hull bottom end, while can effectively support pole piece 1, prevents pole piece 1 from generating drawing because of vibration
Pull deformation.
Claims (5)
1. a kind of power battery electrode core insulation safeguard structure, the protective film (2) including protecting pole piece (1), it is characterised in that: described
Protective film (2) includes first part (3) corresponding with the pole piece (1) two big face and second part (4) respectively, and described first
Partially (3) are connect with second part (4) by interconnecting piece (5), and the interconnecting piece (5) is corresponding with the bottom surface of the pole piece (1), institute
It states first part (3) and extends to form two the first sides (6) to two sides, the second part (4) extends to form two to two sides
Second side (7), when the first part (3) and second part (4) fold vertical with the interconnecting piece (5), one described the
One side (6) connect a side for wrapping up the pole piece (1) with second side (7), another described first side (6)
Connect another side for wrapping up the pole piece (1) with another second side (7), the interconnecting piece (5) be equipped with it is described
Interconnecting piece (5) matched bottom plate (8), the interconnecting piece (5) are equipped with several first through hole (9), and the bottom plate (8) is equipped with
Several second through-holes (10), the first through hole (9) correspond with the second through-hole (10) and are connected to.
2. power battery electrode core insulation safeguard structure according to claim 1, it is characterised in that: first side (6)
Width is not less than the half of the interconnecting piece (5) width, and the width of second side (7) is greater than the interconnecting piece (5) width
Half.
3. power battery electrode core insulation safeguard structure according to claim 2, it is characterised in that: first side (6) to
Extend to form fusing department (11) outside.
4. the according to claim 1 or 2 or 3 power battery electrode core insulation safeguard structures, it is characterised in that: the interconnecting piece
(5) first through hole (9) equidistant arrangement on, the second through-hole (10) equidistant arrangement on the bottom plate (8).
5. power battery electrode core insulation safeguard structure according to claim 4, it is characterised in that: the thickness of the bottom plate (8)
It is 3~4 times of the protective film (2) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620004.8U CN209607768U (en) | 2019-04-30 | 2019-04-30 | Power battery electrode core insulation safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920620004.8U CN209607768U (en) | 2019-04-30 | 2019-04-30 | Power battery electrode core insulation safeguard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209607768U true CN209607768U (en) | 2019-11-08 |
Family
ID=68407861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920620004.8U Expired - Fee Related CN209607768U (en) | 2019-04-30 | 2019-04-30 | Power battery electrode core insulation safeguard structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209607768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782901A (en) * | 2020-05-22 | 2021-12-10 | 比亚迪股份有限公司 | Battery pack and electric vehicle |
-
2019
- 2019-04-30 CN CN201920620004.8U patent/CN209607768U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782901A (en) * | 2020-05-22 | 2021-12-10 | 比亚迪股份有限公司 | Battery pack and electric vehicle |
| CN113782901B (en) * | 2020-05-22 | 2023-12-12 | 比亚迪股份有限公司 | Battery pack and electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20210430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |