CN210040377U - Pole ear type top cover structure - Google Patents
Pole ear type top cover structure Download PDFInfo
- Publication number
- CN210040377U CN210040377U CN201920805831.4U CN201920805831U CN210040377U CN 210040377 U CN210040377 U CN 210040377U CN 201920805831 U CN201920805831 U CN 201920805831U CN 210040377 U CN210040377 U CN 210040377U
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- China
- Prior art keywords
- top cover
- battery
- inner end
- tab
- piece
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000003292 glue Substances 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 238000005538 encapsulation Methods 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract 4
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 238000010073 coating (rubber) Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000004382 potting Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 238000013329 compounding Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to the technical field of top cover structures, and discloses a lug type top cover structure, which comprises a top cover plate for sealing the inside of a battery and a lug piece penetrating through the top cover plate, wherein the lug piece comprises a middle part, an outer extension part extending out of the battery and an inner end part arranged in the battery; two ends of the middle part are respectively connected and communicated with the outer extension part and the inner end part; the pole ear piece and the top cover piece are provided with glue injection gaps, the glue injection gaps are subjected to injection molding and encapsulation to form sealing layers, the top cover piece and the pole ear piece are fixedly arranged with the sealing layers respectively, and the sealing layers seal the glue injection gaps. The pole ear piece penetrates through the top cover plate, the external element is communicated with the epitaxial part, and the epitaxial part is matched with the middle part and the inner end part to realize the conduction between the external element and the inside of the battery and realize the charge and discharge of the battery; meanwhile, under the action of the sealing layer, the internal sealing of the battery is ensured, the leakage of the battery is effectively avoided, and the use safety of the battery is enhanced; the adoption of the pole lug piece reduces the welding process of battery assembly, reduces the manufacturing cost and is convenient for battery assembly.
Description
Technical Field
The patent of the utility model relates to a technical field of top cap structure particularly, relates to utmost point ear formula top cap structure.
Background
The tab is a metal conductor which leads out the positive electrode and the negative electrode from the battery core, and is a contact point during charging and discharging in a popular way; the battery top cover is an important component of the battery, and has the functions of sealing, explosion prevention, liquid leakage prevention and the like.
At present, a battery top cover is provided with a pole post, a pole lug is communicated with a battery core, and the pole post and the pole lug are communicated and arranged by welding the pole post with the pole lug to realize the charge and discharge of a battery.
In the prior art, a pole is adopted, and because the number of battery components is large, the assembly procedures are multiple and complicated, the cost of the battery is high, and the battery is inconvenient to assemble.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a utmost point ear formula top cap structure aims at solving prior art, the inconvenient problem of battery assembling.
The utility model discloses a realize like this, utmost point ear formula top cap structure, including the top cap piece of closing cap battery inside and the utmost point ear spare that runs through the top cap piece, utmost point ear spare includes the intermediate part, extends the outside extension portion of battery and the interior tip of arranging in the battery; the two ends of the middle part are respectively connected and communicated with the outer extension part and the inner end part; the pole ear piece and the top cover piece are provided with glue injection gaps, the glue injection gaps are subjected to injection molding and encapsulation to form sealing layers, the top cover piece and the pole ear piece are fixedly arranged with the sealing layers respectively, and the sealing layers close the glue injection gaps.
Furthermore, the middle part and the top cover plate are arranged in parallel, one end of the middle part is bent upwards to form a first connecting part, the first connecting part is arranged in an arc shape, the lower end of the extension part is connected with the first connecting part, and the upper end of the extension part extends upwards; the other end of the middle part is bent downwards to form a second connecting part, the upper end of the inner end part is connected with the second connecting part, and the lower end of the inner end part extends downwards.
Further, the sealing layer comprises at least one first reinforcing column and at least one second reinforcing column; the first connecting part forms at least one first pole lug hole, and when injection molding and encapsulation are carried out, glue is injected to retain the first pole lug hole to form a first reinforcing column; the middle part forms at least one second polar ear hole, and when the rubber coating is injected, the rubber is retained in the second polar ear hole to form a second reinforcing column.
Further, the extension portion and the top cover sheet are arranged vertically, the inner end portion and the top cover sheet are arranged vertically, and the extension portion and the inner end portion are arranged in an extending mode along the opposite direction.
Further, the tab piece is provided with a fusing bar which is arranged between the inner end part and the middle part; when the temperature of the fusing bar is higher than a set fusing value, the fusing bar is fused, and the inner end part and the middle part are in an open circuit state.
Further, the tab piece comprises a positive tab and a negative tab, and the positive tab and the negative tab respectively form the middle part, the outer extension part and the inner end part; the battery is internally provided with an electric core, the electric core is provided with a positive electrode and a negative electrode, the inner end part of the positive electrode lug is communicated with the positive electrode of the electric core, and the inner end part of the negative electrode lug is communicated with the negative electrode of the electric core.
Further, the tab piece comprises two positive tabs and two negative tabs, the inner ends of the two positive tabs are respectively communicated with the positive electrode of the battery cell, and the inner ends of the two negative tabs are respectively communicated with the negative electrode of the battery cell; the extension parts of the two positive lugs are gathered to form a positive connecting part, and the extension parts of the two negative lugs are gathered to form a negative connecting part.
Furthermore, a plurality of micro-etching holes are formed in the tab piece, and when the tab piece is subjected to injection molding and encapsulation, the micro-etching holes are sealed and covered by glue injection.
Furthermore, the pole lug piece is formed by compounding aluminum and copper; the extension portion is made of aluminum, and the inner end portion is made of copper.
Further, the top cover piece comprises an upper cover and a lower cover, and the upper cover and the lower cover are arranged in a buckling manner; the upper cover is provided with an upper through hole and a plurality of glue injection holes, the lower cover is provided with a lower through hole, and the upper through hole and the lower through hole are arranged in a vertically opposite mode; the pole ear pieces respectively penetrate through the upper through hole and the lower through hole.
Compared with the prior art, the pole ear piece penetrates through the top cover plate, the external element is communicated with the external extension part, the external extension part is matched with the middle part and the inner end part, the external element is communicated with the inside of the battery, and the charging and discharging of the battery are realized; meanwhile, under the action of the sealing layer, the internal sealing of the battery is ensured, the leakage of the battery is effectively avoided, and the use safety of the battery is enhanced; the adoption of the pole lug piece reduces the welding process of battery assembly, reduces the manufacturing cost and is convenient for battery assembly.
Drawings
Fig. 1 is an exploded perspective view of a double-pole ear type structure with a tab type top cover according to the present invention;
fig. 2 is a schematic perspective view of a bipolar lug type structure of the lug type top cover provided by the present invention;
fig. 3 is a schematic perspective view of a bipolar lug type structure of the lug type top cover according to the present invention;
fig. 4 is a schematic perspective view of a bipolar ear type tab member with a tab type top cover structure according to the present invention;
fig. 5 is a schematic top view of an upper cover of a tab type top cover structure provided by the present invention;
fig. 6 is an exploded perspective view of a single-pole ear type structure of the ear-pole type top cover provided by the present invention;
fig. 7 is a schematic perspective view of a single-pole ear type structure of a tab type top cover according to the present invention;
fig. 8 is a schematic perspective view of a single-pole ear type pole ear piece with a pole ear type top cover structure provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1-8, the preferred embodiment of the present invention is shown.
The utility model provides a utmost point ear formula top cap structure for solve the inconvenient problem of battery assembling.
The pole lug type top cover structure comprises a top cover plate 10 and a pole lug piece 20, wherein the top cover plate 10 covers the inside of the battery, the pole lug piece 20 penetrates through the top cover plate 10, and the pole lug piece 20 comprises a middle part 25, an outer extension part 23 extending out of the battery and an inner end part 24 arranged in the battery; the two ends of the middle part 25 are respectively connected and communicated with the outer extension part 23 and the inner end part 24; the pole ear piece 20 and the top cover plate 10 are provided with a glue injection gap, the glue injection gap is subjected to injection molding and encapsulation to form a sealing layer 30, the top cover plate 10 and the pole ear piece 20 are respectively and fixedly arranged with the sealing layer 30, and the sealing layer 30 seals the glue injection gap.
In the pole lug type top cover structure, the pole lug piece 20 penetrates through the top cover piece 10, the external element is communicated with the extension part 23, and the extension part 23 is matched with the middle part 25 and the inner end part 24, so that the external element is communicated with the inside of the battery, and the charging and discharging of the battery are realized; meanwhile, under the action of the sealing layer 30, the internal sealing of the battery is ensured, the leakage of the battery is effectively avoided, and the use safety of the battery is enhanced; the pole lug piece 20 is adopted, so that the welding process of battery assembly is reduced, the manufacturing cost is reduced, and the battery assembly is facilitated.
In this embodiment, the middle portion 25 and the top cover sheet 10 are arranged in parallel, one end of the middle portion 25 is bent upward to form a first connecting portion 26, the first connecting portion 26 is arranged in an arc shape, the lower end of the extending portion 23 is connected with the first connecting portion 26, and the upper end of the extending portion 23 extends upward; the other end of the middle part 25 is bent downwards to form a second connecting part 28, the upper end of the inner end part 24 is connected with the second connecting part 28, and the lower end of the inner end part 24 extends downwards; the connection stability of the outer extension portion 23, the intermediate portion 25, and the inner end portion 24 is enhanced by the first connection portion 26 and the second connection portion 28.
In the direction away from the inner end portion 24, the first connecting portion 26 is arched outward to form an arc, so that the bearing capacity of the first connecting portion 26 is enhanced, and the service life of the pole lug piece 20 is prolonged.
Along deviating from outer extension 23 direction, second connecting portion 28 arches outwards and is the arc and arranges, strengthens the holding capacity of second connecting portion 28, improves the life of utmost point ear spare 20.
The sealing layer 30 includes at least one first reinforcing post and at least one second reinforcing post; the first connecting part 26 forms at least one first pole lug hole 27, and when the injection molding encapsulation is carried out, the glue is retained in the first pole lug hole 27 to form a first reinforcing column; the intermediate portion 25 forms at least one second dipolar ear-hole 29, and the glue injection retains the second dipolar ear-hole 29 to form a second reinforcement column when the encapsulation is injection molded.
The connection stability of the pole ear piece 20 and the sealing layer 30 is enhanced by the respective first reinforcing columns, thereby enhancing the relative stability of the pole ear piece 20 and the top cover sheet 10.
Along top-down direction, first utmost point ear hole 27 is the slope and arranges, and during the injecting glue of being convenient for, the colloid flows down, simultaneously, makes first reinforcement post be the slope and arranges, realizes multi-directionally consolidating, improves utmost point ear and sets up the steadiness.
The outer extension part 23 is arranged perpendicular to the top cover sheet 10, the inner end part 24 is arranged perpendicular to the top cover sheet 10, and the outer extension part 23 and the inner end part 24 are arranged in an extending manner along the opposite direction; the arrangement is convenient for the connection of the extension part 23 and external elements, and the charging and discharging of the battery are realized; and the extension portion 23 has a larger contact area, facilitating the communication of the extension portion 23 with an external element.
Specifically, the tab member 20 is provided with a fuse strip disposed between the inner end portion 24 and the intermediate portion 25; when the temperature of the fusing bar is higher than a set fusing value, the fusing bar is fused, and the inner end part 24 and the middle part 25 are in an open circuit state; thereby playing a protective role, reducing the accidents caused by the use of the battery and improving the use safety of the battery.
The fusing bar is made of aluminum materials, the melting point range is about 660 degrees, and when the melting point range is larger than 660 degrees, the fusing bar is fused, so that the short-circuit protection effect on the battery is achieved.
The second connecting part 26 comprises a plurality of connecting strips, the fusing strips are arranged on the connecting strips, and the fusing strips on the connecting strips are arranged in series; therefore, when the temperature is higher than 660 degrees, the fusing bars are synchronously disconnected, and the short-circuit protection effect on the battery is guaranteed.
The tab member 20 includes a positive tab 21 and a negative tab 22, the positive tab 21 and the negative tab 22 respectively forming an intermediate portion 25, an outer extension portion 23, and an inner end portion 24; a battery core is arranged in the battery, the battery core is provided with a positive electrode and a negative electrode, the inner end part 24 of the positive electrode lug 21 is communicated with the positive electrode of the battery core, and the inner end part 24 of the negative electrode lug 22 is communicated with the negative electrode of the battery core; and the circuit communication between the battery cell and the positive electrode tab 21 and the negative electrode tab 22 is realized, and the charging and discharging of the battery are realized.
The pole ear piece 20 comprises two positive pole ears 21 and two negative pole ears 22, the inner end portions 24 of the two positive pole ears 21 are respectively communicated with the positive poles of the battery cells, and the inner end portions 24 of the two negative pole ears 22 are respectively communicated with the negative poles of the battery cells; the extending portions 23 of the two positive electrode tabs 21 are collected to form a positive electrode connecting portion, and the extending portions 23 of the two negative electrode tabs 22 are collected to form a negative electrode connecting portion.
Therefore, when the battery needs to output large current, the two positive electrode lugs 21 and the two negative electrode lugs 22 are matched to realize dual output, so that large current output is ensured, the damage of the large current to a single lug is reduced, and the service life of the lug is prolonged.
The pole ear piece 20 is provided with a plurality of micro-etching holes, and when the injection molding and encapsulation are carried out, the micro-etching holes are sealed by injecting glue; the relative fixing effect of the pole ear piece 20 and the sealing layer 30 is enhanced, and the sealing effect is better.
The pole lug piece 20 is formed by compounding aluminum and copper; the extension part 23 is made of aluminum, and the inner end part 24 is made of copper; the production of the pole lug piece 20 is convenient, and the production cost is reduced; at the same time, communication of the outer end portion 23 with external elements is ensured, and communication of the inner end portion 24 with the cell is ensured.
The negative electrode lug can be made of all-copper materials, so that the production cost is reduced.
The top cover sheet 10 comprises an upper cover 11 and a lower cover 12, wherein the upper cover 11 and the lower cover 12 are arranged in a buckling manner; the upper cover 11 is provided with an upper through hole 13 and a plurality of glue injection holes 14, the lower cover 12 is provided with a lower through hole, and the upper through hole 13 and the lower through hole are arranged in a vertically opposite mode; the pole ear piece 20 respectively penetrates through the upper through hole 13 and the lower through hole; and the upper cover 11 and the lower cover 12 are matched with the pole lugs.
The two positive lugs 21 are arranged oppositely, the two outer extension parts 23 and the two inner end parts 24 of the two positive lugs 21 are respectively arranged vertically and correspondingly, and the two middle parts 25 are arranged in a horizontal extension mode along the opposite direction; therefore, the whole integrity is better, and the use of the battery is ensured.
The two negative electrode tabs 22 are arranged oppositely, the two outer extension parts 23 and the two inner end parts 24 of the two negative electrode tabs 22 are respectively arranged vertically and correspondingly, and the two middle parts 25 are arranged in a horizontal extension mode along the opposite direction; therefore, the whole integrity is better, and the use of the battery is ensured.
The upper cover 11 is formed with a downward concave groove having a bottom wall, and a plurality of glue injection holes 14 are formed on the bottom wall; like this, under the effect of depressed groove, when guaranteeing to mould plastics the rubber coating, the colloid has sufficient injecting glue volume, and the depressed groove helps fixing a position the colloid, is convenient for mould plastics the rubber coating.
Upper and lower caps 11, 12 and the embodiment of the monopole ear:
the middle part 25 is horizontally laid in the lower through hole, the inner end part 24 is arranged downwards in a vertical extending way, and the outer extension part 23 is arranged upwards in a vertical extending way and penetrates through the upper through hole 13; the upper cover 11 and the lower cover 12 are respectively provided with a plurality of glue injection holes 14, and the injection molding and the encapsulation are realized through the upper cover 11 or the lower cover 12;
a plurality of glue injection holes 14 are arranged around the circumference of the lower through hole at intervals and are communicated with the lower through hole, so that when the injection molding and the glue coating are carried out, a gap between the inner end part 24 and the lower through hole is blocked, and the sealing effect is improved.
A plurality of glue injection holes 14 are arranged around the circumference of the upper through hole 13 at intervals and are communicated with the upper through hole 13, so that when the glue is injected and encapsulated, a gap between the inner end part 24 and the upper through hole 13 is blocked, and the sealing effect is improved.
the inner end part 24 extends downwards vertically and penetrates through the upper through hole 13 and the lower through hole respectively, the middle part 25 is horizontally laid above the upper cover 11, and the outer extension part 23 extends upwards vertically and deviates from the upper shell direction; the upper cover 11 is formed with a plurality of injection holes 14 to realize injection molding and encapsulation.
A plurality of glue injection holes 14 are arranged around the circumference of the upper through hole 13 at intervals and are communicated with the upper through hole 13, so that when the glue is injected and encapsulated, a gap between the inner end part 24 and the upper through hole 13 is blocked, and the sealing effect is improved.
When injection molding and encapsulation are carried out, the sealing colloid flows to respectively wrap the two positive electrode lugs 21 or the two positive electrode lugs 21, so that the sealing layer 30 is respectively and fixedly arranged with the two positive electrode lugs 21, or the sealing layer 30 is respectively and fixedly arranged with the two negative electrode lugs 22; this improves the stability of the arrangement of the two positive electrode tabs 21 and the two negative electrode tabs 22.
The upper cover 11 forms two concave grooves, the distance between the two concave grooves forms a covering surface, and the upper through hole 13 and the plurality of glue injection holes 14 are respectively positioned in the covering surface; after injection molding and encapsulation, the covering surface is covered by the sealing layer 30, so that the sealing effect of the sealing layer 30 is ensured.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The pole lug type top cover structure is characterized by comprising a top cover plate for covering the inside of a battery and a pole lug piece penetrating through the top cover plate, wherein the pole lug piece comprises a middle part, an outer extension part extending out of the battery and an inner end part arranged in the battery; the two ends of the middle part are respectively connected and communicated with the outer extension part and the inner end part; the pole ear piece and the top cover piece are provided with glue injection gaps, the glue injection gaps are subjected to injection molding and encapsulation to form sealing layers, the top cover piece and the pole ear piece are fixedly arranged with the sealing layers respectively, and the sealing layers close the glue injection gaps.
2. The tab type top cover structure according to claim 1, wherein the middle portion is parallel to the top cover sheet, one end of the middle portion is bent upward to form a first connecting portion, the first connecting portion is arranged in an arc shape, the lower end of the extending portion is connected to the first connecting portion, and the upper end of the extending portion extends upward; the other end of the middle part is bent downwards to form a second connecting part, the upper end of the inner end part is connected with the second connecting part, and the lower end of the inner end part extends downwards.
3. The lug cap structure of claim 2, wherein the sealing layer comprises at least one first reinforcing post and at least one second reinforcing post; the first connecting part forms at least one first pole lug hole, and when injection molding and encapsulation are carried out, glue is injected to retain the first pole lug hole to form a first reinforcing column; the middle part forms at least one second polar ear hole, and when the rubber coating is injected, the rubber is retained in the second polar ear hole to form a second reinforcing column.
4. The lug cap structure of claim 2, wherein the outer extension portion is disposed perpendicular to the top cover piece, the inner end portion is disposed perpendicular to the top cover piece, and the outer extension portion and the inner end portion are disposed to extend in opposite directions.
5. The tab header structure of any one of claims 1-4, wherein the tab member is provided with a fuse strip interposed between the inner end portion and the intermediate portion; when the temperature of the fusing bar is higher than a set fusing value, the fusing bar is fused, and the inner end part and the middle part are in an open circuit state.
6. The tab header structure of any of claims 1-4, wherein the tab member comprises a positive tab and a negative tab, the positive tab and the negative tab forming the intermediate portion, the outer extension portion, and the inner end portion, respectively; the battery is internally provided with an electric core, the electric core is provided with a positive electrode and a negative electrode, the inner end part of the positive electrode lug is communicated with the positive electrode of the electric core, and the inner end part of the negative electrode lug is communicated with the negative electrode of the electric core.
7. The tab type top cover structure of claim 6, wherein the tab piece comprises two positive tabs and two negative tabs, inner ends of the two positive tabs are respectively communicated with a positive electrode of the battery cell, and inner ends of the two negative tabs are respectively communicated with a negative electrode of the battery cell; the extension parts of the two positive lugs are gathered to form a positive connecting part, and the extension parts of the two negative lugs are gathered to form a negative connecting part.
8. The tab cap structure according to any one of claims 1 to 4, wherein the tab member is formed with a plurality of micro-etched holes, and the potting compound covers the micro-etched holes when injection-molded.
9. The tab cap structure according to any one of claims 1-4, wherein the tab member is formed of aluminum and copper composite; the extension portion is made of aluminum, and the inner end portion is made of copper.
10. The tab type top cover structure according to any one of claims 1 to 4, wherein the top cover sheet comprises an upper cover and a lower cover, and the upper cover and the lower cover are arranged in a fastening manner; the upper cover is provided with an upper through hole and a plurality of glue injection holes, the lower cover is provided with a lower through hole, and the upper through hole and the lower through hole are arranged in a vertically opposite mode; the pole ear pieces penetrate through the upper penetrating port and the lower penetrating port respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805831.4U CN210040377U (en) | 2019-05-30 | 2019-05-30 | Pole ear type top cover structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920805831.4U CN210040377U (en) | 2019-05-30 | 2019-05-30 | Pole ear type top cover structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210040377U true CN210040377U (en) | 2020-02-07 |
Family
ID=69345823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920805831.4U Withdrawn - After Issue CN210040377U (en) | 2019-05-30 | 2019-05-30 | Pole ear type top cover structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210040377U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212147A (en) * | 2019-05-30 | 2019-09-06 | 常州瑞德丰精密技术有限公司 | Tab formula cap structure |
| CN112615093A (en) * | 2020-12-30 | 2021-04-06 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
| WO2021241904A1 (en) * | 2020-05-25 | 2021-12-02 | 주식회사 엘지에너지솔루션 | Battery cell transfer device |
-
2019
- 2019-05-30 CN CN201920805831.4U patent/CN210040377U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212147A (en) * | 2019-05-30 | 2019-09-06 | 常州瑞德丰精密技术有限公司 | Tab formula cap structure |
| CN110212147B (en) * | 2019-05-30 | 2024-02-13 | 常州瑞德丰精密技术有限公司 | Lug type top cover structure |
| WO2021241904A1 (en) * | 2020-05-25 | 2021-12-02 | 주식회사 엘지에너지솔루션 | Battery cell transfer device |
| CN112615093A (en) * | 2020-12-30 | 2021-04-06 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
| CN112615093B (en) * | 2020-12-30 | 2023-08-04 | 武汉富航精密工业有限公司 | Injection molding assembly method of secondary battery top cover assembly and top cover assembly |
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