CN208889705U - Secondary cell top cover - Google Patents
Secondary cell top cover Download PDFInfo
- Publication number
- CN208889705U CN208889705U CN201821610193.2U CN201821610193U CN208889705U CN 208889705 U CN208889705 U CN 208889705U CN 201821610193 U CN201821610193 U CN 201821610193U CN 208889705 U CN208889705 U CN 208889705U
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- CN
- China
- Prior art keywords
- coping plate
- moulding
- top cover
- negative terminal
- secondary cell
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- 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.)
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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)
Abstract
It includes: coping plate and the positive terminal and negative terminal for being set to coping plate that the utility model, which provides a kind of secondary cell top cover, coping plate is equipped with cathode mounting hole, negative terminal is insulated in cathode mounting hole, negative terminal is enclosed equipped with moulding, coping plate is equipped with connector, it is sheathed on negative terminal outside connector and is electrically insulated with negative terminal, connector is partially submerged into moulding.Negative terminal can be insulated and be fixed with connector by moulding by the secondary cell top cover of the utility model, and the formation of moulding is easily realized；Connector is partially submerged into moulding simultaneously, can prevent the negative terminal from driving moulding play because of loosening in the use process of battery, thus its fixing is preferable；Assembly between negative terminal and coping plate only need to be by the connection between connector and coping plate it is achieved that being not necessarily to cumbersome assembly process and high-precision requirement, thus yields is greatly improved.
Description
Technical field
The utility model relates to energy storage instrument field more particularly to a kind of secondary cell top covers.
Background technique
The driving power of modern society, more and more electric tools and the new energy vehicles is towards high capacity, Gao An
The direction of full property is developed, and battery is widely used in electric tool and the new energy vehicles with good characteristics such as its high capacity
In.These batteries should also have good safety to can be only achieved the standard used and meet people other than with high capacity
Demand.
General secondary cell, negative pole end needs to meet to be electrically insulated with top cover and shell, thus can be arranged numerous exhausted
Edge component, such as by upper plastic parts that negative terminal insulate with top cover, be placed in the sealing in cathode mounting hole being electrically insulated and sealed
Circle and the lower plastic parts that negative straps are electrically insulated with top cover, these components are in the installation for carrying out coping plate negative pole end
When, in order to which the required precision of its air-tightness of strict control, installation is very high, precompressed should be carried out to sealing ring, again stringent control
The gap between each component is made, thus at high cost and yields is low.
Thus, it is badly in need of providing the production method of a kind of new cap structure or top cover to solve the assembly of aforementioned cap structure
And processing problems.
Utility model content
The purpose of this utility model is that a kind of secondary cell top cover is provided in view of the deficiencies of the prior art, structure
Simply, without cumbersome sealing and assembly technology, thus production and yields height are easy.
In order to achieve the above objectives, on the one hand the utility model provides a kind of secondary cell top cover, for receiving battery core
Shell be sealed, comprising: coping plate and the positive terminal and negative terminal for being set to the coping plate, the coping plate are equipped with negative
Pole mounting hole, the negative terminal are insulated in the cathode mounting hole, and the negative terminal is enclosed equipped with moulding, the coping plate
Equipped with connector, it is sheathed on the negative terminal outside the connector and is electrically insulated with the negative terminal, the part of the connector
It is embedded in the moulding.
Negative terminal can be insulated and be fixed with connector by moulding by the secondary cell top cover of the utility model,
And the formation of moulding is easily realized；Connector is partially submerged into moulding simultaneously, can prevent negative terminal using in battery
Moulding play is driven in journey because of loosening, thus its fixing is preferable；Dress between the utility model negative terminal and coping plate
With only need to by between connector and coping plate connection it is achieved that be not necessarily to cumbersome assembly process and high-precision requirement,
Thus yields is greatly improved.
As an embodiment, the connector is the hollow cylinder with diameter, and one end of the hollow cylinder is
Embedded division is simultaneously embedded in the moulding, and the other end is interconnecting piece and is set to the coping plate, i.e. connector is " I " type structure, this
The connector of structure is easier to be processed.
As an embodiment, the connector, which has, is parallel to the interconnecting piece of the coping plate and in the one of the interconnecting piece
The embedded division extended to form along the direction far from the shell is held, the interconnecting piece is set to the coping plate, the embedded division
It is embedded in the moulding, i.e. connector is L-shaped structure.It is divided into interconnecting piece and embedded division by connector, and two parts are mutual
It does not interfere, insulation between connector and negative terminal and fixation and the connection of connector and coping plate can be combined.
As an embodiment, it is recessed that the coping plate around the cathode mounting hole is recessed first to the direction of the shell
Portion, the interconnecting piece are fixedly welded on first recess portion, interconnecting piece and negative terminal can be formed individual component by injection molding,
It only needs to weld interconnecting piece and coping plate when assembling with coping plate, simple production process, conveniently.Further, institute
The notch that interconnecting piece is parallel to the coping plate with many places opening direction is stated, first recess portion has chimeric with the notch
Coping plate convex block, weld interconnecting piece and coping plate by the Qian He of convex block and notch more firm.
As an embodiment, the connecting portion in the coping plate top and be welded and fixed with the coping plate, institute
It states the part of interconnecting piece and the embedded division is all embedded in the moulding convex block.The surface of coping plate and the underrun of interconnecting piece
Face contact is welded, and contact surface is by the interference of neighbouring other component, thus welding efficiency is higher, can will be even by injection molding
Socket part and negative terminal form individual component, only need to weld interconnecting piece and coping plate when assembling with coping plate, production
Simple process, conveniently.Further, the notch that there is the interconnecting piece many places opening direction to be parallel to the coping plate, institute
Moulding is stated with the moulding convex block chimeric with the notch, moulding by convex block and the notch of interconnecting piece carry out it is chimeric can
Keep the two fixation more firm.
As an embodiment, it is recessed that the coping plate around the cathode mounting hole is recessed first to the direction of the shell
Portion is welded with connection sheet in first recess portion, and the connection sheet is equipped with the connecting hole coaxial with the cathode mounting hole,
The interconnecting piece is fixedly welded on the connection sheet.Interconnecting piece, connection sheet and negative terminal can be formed individual portion by injection molding
Part only needs to weld connection sheet and coping plate when assembling with coping plate, simple production process, conveniently.
As an embodiment, the notch that there is the interconnecting piece many places opening direction to be parallel to the coping plate, the note
Plastic has the moulding convex block chimeric with the notch, and sealing ring is equipped between the negative terminal and the connection sheet.Pass through
Negative terminal can be fixed in connection sheet to facilitate injection molding by sealing ring.
As an embodiment, the embedded division is hollow cylinder or hollow regular prism structure.If embedded division be it is hollow just
Prism structure, the notch that interconnecting piece must have many places opening direction to be parallel to coping plate are just able to achieve the bending of connector.
As an embodiment, the embedded division is parallel to the through-hole of the coping plate with multiple opening directions.It was molded
Cheng Zhong, moulding can be embedded in through-hole and make between connector and moulding in conjunction with more firm.
As an embodiment, be additionally provided with bending part between the interconnecting piece and the embedded division, the negative terminal with it is described
Sealing ring is equipped between coping plate, the sealing ring is connected to the bending part.
As an embodiment, the coping plate extends to the direction of the shell and is formed with the second recess portion, the anode
Column is welded in the coping plate and covers second recess portion, and second recess portion is connect with the positive plate in the battery core.Cause
And the assembly of positive terminal and coping plate no longer needs to be sealed using other parts such as sealing ring, upper insulating parts, and sealing is omitted
Mounting process, thus assemble simple；Positive terminal is directly welded in coping plate, larger with the contact area of coping plate, thus
Conveyance capacity is good；The second recess portion formed on coping plate means that there are gap on coping plate, gap can make coping plate and anode
The connection of the connection of column, coping plate and positive plate is mutually isolated, particular avoids interference mutual when welding, thus two
The assembling of primary cell cap structure is stronger.
As an embodiment, the positive terminal is located at the top of the coping plate and is welded and fixed with the coping plate, just
Pole is directly welded on coping plate, easy to operate without carrying out additional processing to coping plate.
As another embodiment, the coping plate has body part, and the body part extends shape to the direction of the shell
At the second recess portion, second recess portion has the bending extended to form from the body part of the coping plate to the direction of the shell
There is platform part can be convenient for the connection with the positive plate in battery core for portion and the platform part being connected with the bending section, the second recess portion,
And the contact area of platform part can further improve greatly conveyance capacity, the connection of platform part and positive plate can by platform part with just
The tab of pole piece using ultrasonic bonding or by conductive sheet as connect medium respectively with platform part, positive plate tab into
Row ultrasonic bonding.Further, first thickness portion and second thickness portion that the body part has thickness different, described second
Thickness extends along the direction of the shell and forms second recess portion, thus the thickness of the second recess portion and second thickness portion
Thickness is equal, and the thickness in the first thickness portion forms step in connecting place greater than the thickness and the two in the second thickness portion,
The positive terminal has weld part, and the weld part is fitted into and is welded in the step, and positive terminal passes through weld part and body part
The step of formation is fitted into and is welded, connection type is firm, it is airtight seal, can prevent biggish weld seam occur in welding
And influence its hermetic seal.
As an embodiment, the maximum distance of lower surface of the positive terminal upper surface to the platform part and the cathode
Column is equal in unidirectional full-size, that is to say, that and the height dimension of two pole column structures of secondary cell top cover is identical,
Secondary cell can be made compact-sized when being assembled into battery pack, it is can avoid and shake.
As an embodiment, there is third recess portion, the opening of the third recess portion is towards described second in the positive terminal
Recess portion.There is third recess portion in positive terminal, can reduce the weight in positive terminal, or even the weight of entire secondary cell top cover.
Detailed description of the invention
Fig. 1 is the front view of the secondary cell top cover of the utility model.
Fig. 2 is the secondary cell top cover of Fig. 1 in the explosive view of negative pole end.
The secondary cell top cover that Fig. 3 is Fig. 2 is in the explosive view of the negative pole end of another angle.
Fig. 4 is a variation diagram of Fig. 2.
Fig. 5 is a variation diagram of Fig. 3.
Fig. 6 is Fig. 1 in the sectional view in the direction A-A.
Fig. 7 is the enlarged drawing of a-quadrant in Fig. 6.
Fig. 8 is a variation diagram of Fig. 7.
Fig. 9 is another variation diagram of Fig. 7.
Figure 10 is the another variation diagram of Fig. 7.
Figure 11 is another variation diagram of Fig. 7.
Figure 12 is the enlarged drawing of B area in Fig. 6.
Figure 13 is a variation diagram of Figure 12.
Figure 14 is another variation diagram of Figure 12.
Figure 15 is the another variation diagram of Figure 12.
Specific embodiment
Illustrate the secondary cell top cover of the utility model with reference to the accompanying drawings and detailed description.
It should be noted that usually secondary cell is vertical placement, the top cover of secondary cell is in the side with housing seal
For lower section, the other side is top, and thickness refers to the size along upper and lower direction.
The secondary cell top cover of the utility model can be used for seal casinghousing and prepare secondary cell, and secondary cell top cover can be with
Shell is welded and is sealed.Referring to Fig.1~5, secondary cell top cover 100 includes coping plate 1, and is arranged on coping plate 1
Positive terminal 2 and negative terminal 3, coping plate 1 is equipped with explosion-proof valve 4 and liquid injection hole 5, lower insulating part 6 is equipped with below coping plate 1 to be used for
Coping plate 1 is electrically insulated with the battery core in shell.
Referring to Fig. 2~10, coping plate 1 is equipped with cathode mounting hole 11, and negative terminal 3 is insulated in cathode mounting hole 11, bears
Pole 3 is Copper-Aluminum compound pole, and upper part 31 is made of aluminium material with for being connected to form battery pack with the external world, its underpart 32 is
For copper to be connected for the negative electrode tab with battery core, lower end 32 has boss 33 to form inverted " t " type structure to facilitate and negative electrode tab
Welding and assembling with coping plate 1.Negative terminal 3 is enclosed equipped with moulding 10, and coping plate 1 is equipped with connector 9,9 housing of connector
It is electrically insulated set on negative terminal 3 and with negative terminal 3, connector 9 is partially submerged into moulding 10.
There are many fixed forms for negative terminal 3 and coping plate 1, and as shown in Fig. 2~8, coping plate 1 is around cathode mounting hole 11 to shell
The direction of body is recessed the first recess portion 12, and connection sheet 7 is welded in the first recess portion 12, and connection sheet 7 is equipped with pacifies with cathode
Fill the coaxial connecting hole 71 in hole 11.Continuing as shown in Fig. 2~3, Fig. 6~7, connector 9 is the hollow cylinder with diameter, and
One end of hollow cylinder is embedded division and is embedded in moulding 10, and the other end is that interconnecting piece is welded in connection sheet 7.Negative terminal 3 and company
Sealing ring 8 is equipped between contact pin 7, exactly, sealing ring 8 is connected between connection sheet 7 and the boss 33 of negative terminal 3, is passed through
Negative terminal 3 can be fixed in connection sheet 7 to facilitate injection molding by sealing ring 8.Hollow cylinder has multiple opening directions parallel
In the through-hole 921 of coping plate 1, thus moulding 10 can be embedded in through-hole 921 and make connector 9 and moulding 10 in injection moulding process
Between combine it is more firm.Hollow cylinder can be hollow cylinder or hollow regular prism structure, and as shown in figures 2-3, hollow cylinder can
For hollow cylinder.As another form, as shown in Fig. 4~5 and Fig. 8, connector 9 has the connection for being parallel to coping plate 1
Portion 91 and the embedded division 92 extended to form in one end of interconnecting piece 91 along the direction far from shell, i.e., embedded division 92 is along vertically upward
Direction extend, interconnecting piece 91 is set to coping plate 1, and specifically, interconnecting piece 91 is fixedly welded on the connection sheet on coping plate 1
7, interconnecting piece 91 is all embedded in moulding 10 in addition to the bottom surface and embedded division 92 that are welded to connect piece 7.Between negative terminal 3 and connection sheet 7
Equipped with sealing ring 8, exactly, sealing ring 8 is connected between connection sheet 7 and the boss 33 of negative terminal 3, can by sealing ring 8
Negative terminal 3 is fixed in connection sheet 7 to facilitate injection molding.There are embedded division 92 multiple opening directions to be parallel to coping plate 1
Through-hole 921, thus moulding 10 can be embedded in through-hole 921 and make to combine between connector 9 and moulding 10 in injection moulding process
It is more firm.Embedded division 92 is hollow regular prism structure, the notch that there is interconnecting piece 91 many places opening direction to be parallel to coping plate 1
911, as a kind of mode, as shown in figure 4, connection sheet 7 is equipped with connection sheet recess portion 72, and connection sheet recess portion 72 around connecting hole 71
Equipped with the connection sheet convex block 73 chimeric with notch 911；Alternatively, as shown in figure 5, moulding 10 has and notch
911 chimeric moulding convex blocks 101.Interconnecting piece 9, connection sheet 7 and negative terminal 3 can be formed individual component by injection molding, with
Coping plate only needs to weld connection sheet and coping plate when assembling, simple production process, conveniently.
As another fixed form of negative terminal 3 and coping plate 1, as shown in figure 9, connector 9 is with diameter
Hollow cylinder, and one end of hollow cylinder is embedded division and is embedded in moulding 10, the other end is interconnecting piece and is welded in coping plate
1.Or as shown in Figure 10, connector 9 has the interconnecting piece 91 for being parallel to coping plate 1 and in one end of interconnecting piece 91 along far from shell
The embedded division 92 that extends to form of direction, i.e. embedded division 92 extends along vertically upward direction, and interconnecting piece 91 is located at coping plate 1
It top and is welded and fixed with coping plate 1, interconnecting piece 91 is all embedded in moulding in addition to the bottom surface of welding coping plate 1 and embedded division 92
10.Sealing ring 8 is equipped between negative terminal 3 and connection sheet 7, exactly, sealing ring 8 is connected in the convex of coping plate 1 and negative terminal 3
Between platform.Certainly, interconnecting piece 91 also can have notch 911 similar in Fig. 4~5, and moulding 10 has chimeric with notch 911
Moulding convex block 101.And embedded division 92 also can have the through-hole 921 that multiple opening directions are parallel to coping plate 1, thus infuse
Moulding 10 can be embedded in through-hole 921 and make between connector 9 and moulding 10 in conjunction with more firm during modeling.This embodiment
In, the surface of coping plate 1 is welded with the underrun face contact of connector 9, and contact surface is not by neighbouring other component
Interference, thus welding efficiency is higher.
As another fixed form of negative terminal 3 and coping plate 1, as shown in figure 11, connector 9, which has, is parallel to top cover
The interconnecting piece 91 of piece 1 and the embedded division 92 extended to form in one end of interconnecting piece 91 along the direction far from shell, i.e. embedded division 92
Extend along vertically upward direction.Coping plate 1 is recessed the first recess portion 12 to the direction of shell around cathode mounting hole 11, connection
The notch 911 that there is many places opening direction to be parallel to coping plate 1 in portion 91, the first recess portion 12 have the top cover chimeric with notch 911
Piece convex block (not shown), interconnecting piece 91 are fixedly welded on the first recess portion 12.It is additionally provided between interconnecting piece 91 and embedded division 92
Bending part 93, is equipped with sealing ring 8 between negative terminal 3 and coping plate 1, sealing ring 8 is connected to bending part 93, embedded division 92 and bending
Portion 93 is embedded in moulding 10.Certainly, and embedded division 92 also can have the through-hole that multiple opening directions are parallel to coping plate 1
921, thus moulding 10 can be embedded in through-hole 921 and make between connector 9 and moulding 10 in conjunction with more firm in injection moulding process.
Certainly, the embedded division 92 of the connector 9 of the utility model can be hollow regular prism structure, as shown in Figures 4 and 5, when
It so may be other structures, such as hollow cylinder.If embedded division is hollow regular prism structure, interconnecting piece must have many places
The notch that opening direction is parallel to coping plate is just able to achieve the bending of connector.
As shown in figure 12, positive terminal 2 is welded in coping plate 1 and far from cathode mounting hole 11.As coping plate 1 and positive terminal
Another embodiment of 2 connections, as shown in figure 13, coping plate 1 extends to the direction (i.e. down) of shell and is formed with the second recess portion
13, positive terminal 2 is welded in coping plate 1 and seals the second recess portion 13, and the second recess portion 13 (does not show with the positive plate in battery core in figure
It connects out).
As the another embodiment that coping plate 1 is connect with positive terminal 2, as shown in figure 14, coping plate 1 has body part 11,
Body part 11 extends to form the second recess portion 13 to the direction (i.e. down) of shell, and the second recess portion 13 has the ontology by coping plate 1
The bending section 131 and the platform part 132 being connected with bending section 131 that portion 11 is extended to form to the direction (i.e. down) of shell, second
Recess portion 13 has platform part 132 can be convenient for the connection with the positive plate in battery core, and the contact area of platform part 132 greatly can be into one
Step improves conveyance capacity.Further, first thickness portion 111 and second thickness portion 112 that body part 11 has thickness different, the
Two thicknesses 112 extend along the direction of shell and form the second recess portion 13, and the thickness in first thickness portion 111 is greater than second thickness portion
112 thickness and the two forms step (not shown) in connecting place, and positive terminal 2 has weld part 21, and weld part 21 is chimeric
And it is welded in step, positive terminal 2 is carried out chimeric and is welded, connection structure by weld part 21 with the step that body part 11 is formed
It is firm, airtight to seal, it can prevent from occurring biggish weld seam in welding and influencing the air-tightness of secondary cell top cover.Further such as
Shown in Figure 14, there is third recess portion 22 in positive terminal 2, the opening of third recess portion 22 towards the second recess portion 13, third recess portion 22
The weight that can reduce in positive terminal 2, or even the weight of entire secondary cell top cover 100 are set.
As the another embodiment that coping plate 1 is connect with positive terminal 2, as shown in figure 15, positive terminal 12 is located at coping plate 1
Top and be welded and fixed with coping plate 1, positive terminal 2 is directly welded on coping plate 1, without to coping plate 1 carry out it is additional plus
Work, it is easy to operate.
Supplementary explanation, the maximum distance and negative terminal 3 of upper surface to the lower surface of platform part 132 of positive terminal 2 exist
Unidirectional full-size is equal, if the upper surface of positive terminal 2 is whole plane, the upper surface of positive terminal 2 to platform
The distance of the lower surface in portion 132 is equal with the maximum height of negative terminal 3；If the upper surface of positive terminal 2 is step-like or non-planar
Shape, then the distance between the lower surface on the vertex of positive terminal 2 to 132 is equal with the maximum height of negative terminal 3, secondary cell top cover
Two pole column structures height dimension it is identical, secondary cell can be made compact-sized when being assembled into battery pack, can avoid its hair
It is raw to shake.
The secondary cell top cover 100 of the utility model can be insulated negative terminal 3 and connector 9 by moulding 10
And it is fixed, and the formation of moulding 10 is easily realized；Connector 9 is partially submerged into moulding 10 simultaneously, can prevent the negative terminal 3 from existing
10 play of moulding is driven in the use process of battery because of loosening, thus its fixing is preferable；The utility model negative terminal 3 with
Assembly between coping plate 1 only need to be by the connection between connector 9 and coping plate 1 it is achieved that being not necessarily to cumbersome assembly
Process and high-precision requirement, thus yields is greatly improved.
Utility model should be pointed out that the above specific embodiment is merely to illustrate the utility model rather than limits this reality
With novel range, after having read the utility model, various equivalent forms of the those skilled in the art to the utility model
Modification each fall within the application range defined in the appended claims.
Claims (10)
1. a kind of secondary cell top cover, for being sealed to the shell for accommodating battery core, comprising: coping plate and be set to the top
The positive terminal and negative terminal of cover plate, the coping plate are equipped with cathode mounting hole, and the negative terminal is insulated pacifies in the cathode
Fill hole, which is characterized in that the negative terminal is enclosed equipped with moulding, and the coping plate is equipped with connector, is arranged outside the connector
It is electrically insulated in the negative terminal and with the negative terminal, the connector is partially submerged into the moulding.
2. secondary cell top cover according to claim 1, which is characterized in that the connector is with the hollow of diameter
Cylinder, and one end of the hollow cylinder is embedded division and is embedded in the moulding, the other end is interconnecting piece and is set to the top
Cover plate.
3. secondary cell top cover according to claim 1, which is characterized in that the connector, which has, is parallel to the top cover
The interconnecting piece of piece and the embedded division extended to form in one end of the interconnecting piece along the direction far from the shell, the interconnecting piece
It is set to the coping plate, the embedded division is embedded in the moulding.
4. secondary cell top cover according to claim 2 or 3, which is characterized in that the coping plate is installed around the cathode
Hole is recessed the first recess portion to the direction of the shell, and the interconnecting piece is fixedly welded on first recess portion.
5. secondary cell top cover according to claim 2 or 3, which is characterized in that the connecting portion is in the coping plate
Top and be welded and fixed with the coping plate, the part of the interconnecting piece is all embedded in the moulding with the embedded division.
6. secondary cell top cover according to claim 2 or 3, which is characterized in that the interconnecting piece has many places opening side
To the notch for being parallel to the coping plate, the moulding has the moulding convex block chimeric with the notch.
7. secondary cell top cover according to claim 3, which is characterized in that the coping plate around the cathode mounting hole to
The direction of the shell is recessed the first recess portion, and connection sheet is welded in first recess portion, and the connection sheet is equipped with
Coaxial connecting hole, the interconnecting piece are fixedly welded on the connection sheet with the cathode mounting hole.
8. secondary cell top cover according to claim 7, which is characterized in that the interconnecting piece is flat with many places opening direction
Row has the moulding convex block chimeric with the notch, the negative terminal and institute in the notch of the coping plate, the moulding
It states and is equipped with sealing ring between connection sheet.
9. secondary cell top cover according to claim 2 or 3, which is characterized in that the embedded division has multiple opening sides
To the through-hole for being parallel to the coping plate.
10. secondary cell top cover according to claim 3, which is characterized in that between the interconnecting piece and the embedded division
It is additionally provided with bending part, sealing ring is equipped between the negative terminal and the coping plate, the sealing ring is connected to the bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821610193.2U CN208889705U (en) | 2018-09-29 | 2018-09-29 | Secondary cell top cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821610193.2U CN208889705U (en) | 2018-09-29 | 2018-09-29 | Secondary cell top cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208889705U true CN208889705U (en) | 2019-05-21 |
Family
ID=66514850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821610193.2U Active CN208889705U (en) | 2018-09-29 | 2018-09-29 | Secondary cell top cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208889705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301103A (en) * | 2018-09-29 | 2019-02-01 | 东莞百思利新能源科技有限公司 | The production technology of secondary cell top cover and secondary cell top cover |
| CN111769219A (en) * | 2020-06-09 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Novel lithium battery cover plate and lithium battery |
-
2018
- 2018-09-29 CN CN201821610193.2U patent/CN208889705U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301103A (en) * | 2018-09-29 | 2019-02-01 | 东莞百思利新能源科技有限公司 | The production technology of secondary cell top cover and secondary cell top cover |
| CN109301103B (en) * | 2018-09-29 | 2024-06-25 | 江西百思利新能源科技股份有限公司 | Secondary battery top cover and production process thereof |
| CN111769219A (en) * | 2020-06-09 | 2020-10-13 | 合肥国轩高科动力能源有限公司 | Novel lithium battery cover plate and lithium battery |
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