CN207676957U - A kind of high power battery cap assembly and high power battery - Google Patents
A kind of high power battery cap assembly and high power battery Download PDFInfo
- Publication number
- CN207676957U CN207676957U CN201721881051.5U CN201721881051U CN207676957U CN 207676957 U CN207676957 U CN 207676957U CN 201721881051 U CN201721881051 U CN 201721881051U CN 207676957 U CN207676957 U CN 207676957U
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- CN
- China
- Prior art keywords
- pole
- battery
- guide plate
- cover board
- high power
- 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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- 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
The utility model discloses a kind of high power battery cap assembly and high power battery, which is used to encapsulate battery case, including battery cover board and the pole across battery cover board, the pole connect core by guide plate：The guide plate has elasticity and is arranged at least one guide plate, and it includes the connecting end surface being arranged in free end that each guide plate, which has elasticity, and after the middle part bending of each guide plate forms bending part, which rubs plane with lug and connect.The high power battery cap assembly and high power battery of the utility model improve the yields of assembled battery product while can meeting battery high-power charge-discharge power demand.
Description
Technical field
The utility model is related to technical field of lithium batteries, more particularly to a kind of high power battery cap assembly and big work(
Rate battery.
Background technology
With the demand growth of the high-power product such as electric vehicle, to lithium ion battery, more stringent requirements are proposed, it is desirable that
The structure of battery is reliable, consistency is good, safe and reliable, so it is urgent constantly to improve the material of lithium ion battery, technique, equipment
The work cut.
Existing battery cap structure, such as one kind of No. 201220225947.9 disclosure of Chinese patent application can make pole
The lithium-ion-power cell that ear and block are connected firmly, including battery positive/negative plate, the lug and lug that are connect with positive/negative plate
The block of connection is riveted between the block and lug and is fixed.Using the side of riveting between the block and lug of the lithium-ion-power cell
Formula is fixed.
But in existing simple block lug assembling mode, shaking easily occurs loosening in battery case in battery roll core
Phenomenon is shaken, easily occurring fever during battery high current charge-discharge leads to battery failure, and there are severe compromises.
The cylindrical battery of full lug formula increases guide plate usually between battery roll core and block, using ultrasonic bond or laser
Weldering means realize the connection between block and core.
Powerful cylindrical battery requires the current-carrying capability of guide plate strong, usually increases the thickness of guide plate to meet
Current-carrying requirement.Situations such as rosin joint, fried weldering easily occurs after guide plate thickness increase in the welding process, after battery roll core welding
Easily occur loosening in battery case that swag phenomenon occurs, to cause desoldering.Not prison welding is in battery large current density electric process
In easily generate heat, can seriously lead to battery failure, there are severe compromises.
Also, the sealing generally use laser welding of battery cap and cylindrical shell realizes that sealing, welding easily welding slag occur
And fried point.After battery case packet insulating film, the welding slag puncture insulating film easy to wear of block marginal existence leads to battery insulation not
It is good.
Therefore, existing lithium battery cap and shell package technique have yet to be improved and developed.
Utility model content
The utility model is provided and a kind of meeting the high-power charge and discharge of battery and raising for the technical problem present on
The high power battery cap assembly and high power battery of assembled battery yields.
In a first aspect, the technical solution that the utility model embodiment provides is：A kind of high power battery block group is provided
Part, for encapsulating battery case, including battery cover board and the pole across battery cover board, the pole are connected by guide plate
Core, the guide plate have elasticity and at least one guide plate are arranged, and it includes that setting exists that each guide plate, which has elasticity,
The connecting end surface of free end, after the middle part bending of each guide plate forms bending part, which rubs plane company with lug
It connects.
When it is implemented, pole interconnecting piece is arranged in the guide plate other end, which opens up pole column hole, the pole
Across the pole column hole and the pole interconnecting piece by rivet interlacement together with.
Preferably, which installs the guide plate side in the battery cover board and is arranged the first insulated enclosure circle, this first
Insulated enclosure circle is arranged between the pole interconnecting piece and battery cover board of the guide plate.
Preferably, which is arranged the second insulated enclosure circle in the other side of battery cover board, and the second insulated enclosure circle is logical
Pole is crossed to be pressed on above-mentioned battery cover board and seal the pole column hole.
Second aspect, technical solution provided by the utility model are：A kind of high power battery is provided, including battery case,
Core in the battery case and battery cap component, the core include that lug rubs plane, the battery cap component
For encapsulating the battery case, including battery cover board and the pole across battery cover board, the pole are connected by guide plate
The core, the guide plate have elasticity and at least one guide plate are arranged, and it includes freely that each guide plate, which has elasticity,
The connecting end surface at end, after the middle part bending of each guide plate forms bending part, which rubs plane with the lug and connect.
Wherein, which is arranged pole interconnecting piece, which opens up pole column hole, which passes through should
Pole column hole and the pole interconnecting piece by rivet interlacement together with.
Specifically, the pole installs the guide plate side in the battery cover board is arranged the first insulated enclosure circle, this first
Insulated enclosure circle is arranged between the pole interconnecting piece and battery cover board of the guide plate.
Specifically, the pole is arranged the second insulated enclosure circle in the other side of battery cover board, the second insulated enclosure circle is logical
Pole is crossed to be pressed on above-mentioned battery cover board and seal the pole column hole.
In order to reduce assembling defect, the outer diameter of the battery case is more than 0.2-1 millimeters of the diameter of the battery cover board, the electricity
The internal diameter of pond shell is less than 0.2-1 millimeters of the diameter of the battery cover board.
The advantageous effect of the utility model embodiment is：The high power battery cap assembly of the present embodiment and high-power
Battery, the guide plate optimize battery current-carrying capability using double carrent leading polar board structures, meanwhile, the thickness of guide plate is not
The problems such as increasing, avoiding rosin joint when guide plate welding；The high power battery cap assembly of the present embodiment and high-power
Battery has elasticity using guide plate and forms elastic bending part structure, is generated in core lug and guide plate contact surface
Certain active force so that contact of the lug with guide plate more fastens, the connection of the guide plate and lug obtain welding and
The dual guarantee of elastic force, avoids the occurrence of insufficient water flow problem caused by desoldering；The high power battery cap assembly of the present embodiment with
And high power battery, the size of the battery case outer diameter are slightly larger than battery cover board so that the welding object protrusion that battery seal generates
The insulating film of battery surface cladding, therefore the high power battery cap assembly and high power battery of the present embodiment are no longer destroyed,
Design structure is simple, meets the high-power charge-discharge power demand of battery and insulating film is avoided to puncture, and battery performance increases while raising
The product yield of battery production is added.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment high power battery cap assembly；
Fig. 2 is the installation condition structural schematic diagram of the utility model embodiment high power battery cap assembly；
Fig. 3 is the structural schematic diagram of the utility model embodiment high power battery；And
Fig. 4 is the utility model embodiment high power battery and cap assembly position relationship schematic diagram.
Specific implementation mode
It is right below in conjunction with the accompanying drawings to make the purpose, technical scheme and advantage of the utility model embodiment be more clearly understood
The utility model embodiment is described in further details.Here, the exemplary embodiment of the utility model and the description thereof are for solving
The utility model is released, but is not intended to limit the scope of the present invention.
Fig. 3 show the high power battery outline structural diagram of the utility model.The high power battery of the present embodiment is whole
A design structure is simple, and exploitativeness is strong, which includes battery case 10, the volume in the battery case 10
Core (not shown) and battery cap component 20, the core include that lug rubs plane.
Please refer to Fig.2 and Fig. 3, the battery cap component 20 for encapsulate the battery case 10, including battery cover board 21 with
And the pole 40 across battery cover board 21.The pole 40 connects the core by guide plate 30.The guide plate 30 has bullet
Simultaneously at least one guide plate is arranged in property.It includes pole interconnecting piece 32, bending part 34, freedom that each guide plate 30, which has elasticity,
The connecting end surface 36 at end.When it is implemented, the pole interconnecting piece 32 is upper end mounting plane, which is that bending deforms
Area, the free end connecting end surface 36 be semicircle bottom surface.It, should after the middle part bending of each guide plate 30 forms bending part 34
Connecting end surface 36 is rubbed plane with the lug and is connect.Wherein, the size of battery case outer diameter is slightly larger than battery cover board, avoids Laser Welding
Connect the insulating film that the solder-bump object that sealing generates destroys battery surface cladding.
The pole interconnecting piece 32 of the guide plate 30 setting is fastened on pole 40 and battery cover board 21.The battery cover
Plate 21 opens up pole column hole, which is linked together with the pole interconnecting piece 32 by rivet 50 across the pole column hole.
For sealed cell, the side which installs the guide plate 30 in the battery cover board 21 is arranged the first insulation
Sealing ring 25, the first insulated enclosure circle 25 are arranged between the pole interconnecting piece 32 and battery cover board 21 of the guide plate 30.
Further, which is arranged the second insulated enclosure circle 24 in the other side of battery cover board 21.Second insulation
24 circle of sealing is pressed on above-mentioned battery cover board 21 by pole 40 and seals the pole column hole.
Referring to FIG. 4, in order to reduce assembling defect, the outer diameter of the battery case 10 is more than the diameter of the battery cover board 21
0.2-1 millimeters, also that is, difference of the diameter with d1 of the outer diameter of the battery case 10 and the battery cover board 21, the value of the d1 are
0.2-1 millimeters.Also, the internal diameter of the battery case 10 is less than 0.2-1 millimeters of the diameter of the battery cover board.Also that is, outside the battery
The internal diameter of shell 10 has the difference of d2 with the diameter of the battery cover board 21, and the value of the d2 is 0.2-1 millimeters.
30 elasticity of guide plate is bent, and the connecting end surface 36 of free end and the lug of core are rubbed plane and connect after bending
It touches.Upper transverse plane is linked together with pole 40 by rivet 50 after the guide plate 30 bending, and insulated enclosure washer 25 is located at
On the cover board 21 of battery cover board 21 and the guide plate 30.The battery cover board 21 opens up pole column hole, which passes through the pole
Between hole and the pole interconnecting piece 32, pole 40 and battery cover board 21.Include liquid injection port 22 in the battery cover board 21, is battery
Cathode cover board, the battery cap structure are used for battery cathode.The cover board that the anode block is included without liquid injection port,
It is consistent with battery cathode capping structure.
The guide plate 30 using copper nickel plating, copper etc. there is metal material conductive, that elastic property is good to be made.The two panels is led
Two semicircle bottom surfaces of pole plate 30 are flowed, pole interconnecting piece 32, double semicircle bottom surfaces are rubbed plane with core lug and come into full contact with, protect
Demonstrate,prove the conveyance capacity of core.There is elasticity after bending and make in two bending regions of the guide plate 30, bending part 34, pole plate
Firmly, which is applied to core and pole plate contact surface so that contact is close, and core is not easy to shake battery during the motion
Desoldering phenomenon occurs, which has the double action of connection core and cover board and firm core.
The high power battery cap assembly and high power battery of the present embodiment, the guide plate 30 is using double water conservancy diversion poles
Harden structure optimizes battery current-carrying capability, meanwhile, the thickness of guide plate 30 does not increase, when avoiding guide plate welding
Rosin joint the problems such as；The high power battery cap assembly and high power battery of the present embodiment have elasticity simultaneously using guide plate
And form 34 structure of elastic bending part, generate certain active force in core lug and guide plate contact surface so that lug with
The contact of guide plate more fastens, and the connection of the guide plate and lug obtains welding and the dual guarantee of elastic force, avoids the occurrence of
Insufficient water flow problem caused by desoldering；The high power battery cap assembly and high power battery of the present embodiment, the battery case
The size of 10 outer diameters is slightly larger than battery cover board 20 so that the welding object protrusion that battery seal generates no longer destroys battery surface cladding
Insulating film, therefore the high power battery cap assembly and high power battery of the present embodiment, design structure is simple, meets battery
High-power charge-discharge power demand and insulating film is avoided to puncture, battery performance increases battery production product while raising is good
Rate.
The foregoing is merely the embodiments of the utility model, and it does not limit the scope of the patent of the present invention, all
It is equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, directly or indirectly uses
In other related technical areas, it is equally included in the patent within the scope of the utility model.
Claims (9)
1. a kind of high power battery cap assembly, for encapsulating battery case, including battery cover board and across battery cover board
Pole, the pole connect core by guide plate, it is characterised in that：The guide plate has elasticity and is arranged at least one
A guide plate, it includes the connecting end surface being arranged in free end, the middle part of each guide plate that each guide plate, which has elasticity,
After bending forms bending part, the connecting end surface is rubbed plane with lug and is connect.
2. high power battery cap assembly according to claim 1, which is characterized in that the guide plate other end setting
Pole interconnecting piece, the battery cover board open up pole column hole, and the pole passes through across the pole column hole with the pole interconnecting piece
Rivet interlacement is together.
3. high power battery cap assembly according to claim 2, which is characterized in that the pole is in the battery cover board
The guide plate side is installed and is arranged the first insulated enclosure circle, the first insulated enclosure circle is arranged in the guide plate
Between pole interconnecting piece and battery cover board.
4. high power battery cap assembly according to claim 3, which is characterized in that the pole is in the another of battery cover board
Side is arranged the second insulated enclosure circle, and the second insulated enclosure circle is pressed on above-mentioned battery cover board by pole and seals institute
State pole column hole.
5. a kind of high power battery, including battery case, the core in the battery case and battery cap component,
The core includes that lug rubs plane, the battery cap component for encapsulating the battery case, including battery cover board and
Across the pole of battery cover board, the pole connects the core by guide plate, it is characterised in that：The guide plate tool
Flexible and at least one guide plate is arranged, each guide plate has the connecting end surface that elasticity includes free end, each to lead
After the middle part bending formation bending part for flowing pole plate, the connecting end surface is rubbed plane with the lug and is connect.
6. high power battery according to claim 5, which is characterized in that the guide plate other end setting pole connects
Portion, the battery cover board open up pole column hole, and the pole passes through the pole column hole to pass through rivet interlacement with the pole interconnecting piece
Together.
7. high power battery according to claim 6, which is characterized in that described in the pole is installed in the battery cover board
Guide plate side is arranged the first insulated enclosure circle, and the pole connection in the guide plate is arranged in the first insulated enclosure circle
Between portion and battery cover board.
8. high power battery according to claim 7, which is characterized in that the pole is arranged in the other side of battery cover board
Second insulated enclosure circle, the second insulated enclosure circle are pressed on above-mentioned battery cover board by pole and seal the pole
Hole.
9. according to the high power battery described in claim 5-8 any one, which is characterized in that the outer diameter of the battery case is big
It is less than the diameter 0.2-1 millis of the battery cover board in the internal diameter of 0.2-1 millimeters of the diameter of the battery cover board, the battery case
Rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881051.5U CN207676957U (en) | 2017-12-28 | 2017-12-28 | A kind of high power battery cap assembly and high power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721881051.5U CN207676957U (en) | 2017-12-28 | 2017-12-28 | A kind of high power battery cap assembly and high power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676957U true CN207676957U (en) | 2018-07-31 |
Family
ID=62972472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721881051.5U Expired - Fee Related CN207676957U (en) | 2017-12-28 | 2017-12-28 | A kind of high power battery cap assembly and high power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115513606A (en) * | 2022-09-28 | 2022-12-23 | 航天锂电科技(江苏)有限公司 | Battery module connecting structure |
-
2017
- 2017-12-28 CN CN201721881051.5U patent/CN207676957U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115513606A (en) * | 2022-09-28 | 2022-12-23 | 航天锂电科技(江苏)有限公司 | Battery module connecting structure |
| CN115513606B (en) * | 2022-09-28 | 2024-04-05 | 航天锂电科技(江苏)有限公司 | Battery module connecting structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20201228 |