CN215184437U - Power battery's electric core subassembly, power battery and welding frock - Google Patents
Power battery's electric core subassembly, power battery and welding frock Download PDFInfo
- Publication number
- CN215184437U CN215184437U CN202120847546.6U CN202120847546U CN215184437U CN 215184437 U CN215184437 U CN 215184437U CN 202120847546 U CN202120847546 U CN 202120847546U CN 215184437 U CN215184437 U CN 215184437U
- Authority
- CN
- China
- Prior art keywords
- fool
- positive
- negative
- hole
- proof
- 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.)
- Active
Links
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 provides a power battery's electric core subassembly, power battery and welding frock. The electric core subassembly includes: the battery cell comprises a winding core and a positive electrode lug and a negative electrode lug which are connected with the winding core; the positive pole switching piece is connected with the positive pole lug; the negative pole adapter plate is connected with the negative pole lug, and the negative pole adapter plate and the positive pole adapter plate are positioned on the same side of the battery cell; the foolproof structure is arranged on the positive pole adapter plate and/or the negative pole adapter plate, and is configured to be matched with the component to be installed when the foolproof structure is installed on the component to be installed in the first direction, so that the negative pole lug is connected with the negative pole adapter plate, and the positive pole lug is connected with the positive pole adapter plate; when the fool-proof structure is installed to the component to be installed in a position other than the first position, the fool-proof structure cannot be matched with the component to be installed. The technical scheme of the utility model positive pole switching piece and negative pole switching piece among the prior art have been solved and the problem of dislocation easily takes place when being connected with electric core.
Description
Technical Field
The utility model relates to a power battery technical field particularly, relates to a power battery's electric core subassembly, power battery and welding frock.
Background
In the battery trade, carry out the carrier that welds with the top cap of power battery's electric core subassembly rather than electric core and be called the switching piece, the switching piece includes anodal switching piece and negative pole switching piece, however, anodal switching piece among the prior art and negative pole switching piece only have the branch of material, the structure is not different, thus, when welding top cap and electric core, the condition of anodal switching piece and negative pole switching piece dress reversal (positive switching piece and negative pole switching piece easily take place the dislocation when being connected with electric core promptly) can appear, thereby can lead to the product to be forced to scrap, reduce the yields of product.
SUMMERY OF THE UTILITY MODEL
A primary object of the utility model is to provide a power battery's battery pack, power battery and welding frock to positive pole switching piece and negative pole switching piece among the solution prior art are the problem of the easy dislocation that takes place when being connected with electric core.
In order to achieve the above object, the utility model provides a power battery's electric core subassembly, the electric core subassembly includes: the battery cell comprises a winding core and a positive electrode lug and a negative electrode lug which are connected with the winding core; the positive pole adapter plate is positioned on one side of the battery cell and is connected with the positive pole lug; the negative pole adapter plate is connected with the negative pole lug, and the negative pole adapter plate and the positive pole adapter plate are positioned on the same side of the battery cell; the foolproof structure is arranged on the positive pole adapter plate and/or the negative pole adapter plate, and is configured to be matched with the component to be installed when the foolproof structure is installed on the component to be installed in the first direction, so that the negative pole lug is connected with the negative pole adapter plate, and the positive pole lug is connected with the positive pole adapter plate; when the fool-proof structure is installed to the component to be installed in a position other than the first position, the fool-proof structure cannot be matched with the component to be installed.
Further, when the positive adapter plate and the negative adapter plate are both provided with the fool-proof structures, the fool-proof structures arranged on the positive adapter plate comprise first fool-proof holes capable of being in clamping fit with the first positioning pins of the component to be installed; the fool-proof structure arranged on the negative pole adapter plate comprises a second fool-proof hole matched with a second positioning pin of the to-be-installed component in a clamping mode.
Further, the shape of the first fool-proof hole is different from the shape of the second fool-proof hole; or the first fool-proof hole is an elliptical hole, and the second fool-proof hole is a square hole or a round hole.
Further, the first fool-proof hole is positioned at one end, close to the battery core, of the positive pole adapter sheet; or the second fool-proof hole is formed in one end, close to the battery core, of the negative adapter plate.
Further, the electric core subassembly still includes the top cap, and the top cap includes the top cap body and sets up in the notes liquid hole of top cap body, annotates the liquid hole and treats the fool-proof portion cooperation of installation basis, and anodal switching piece and negative pole switching piece lie in the same one side of top cap body.
Further, anodal switching piece includes corotation splicing body and sets up in the groove of dodging of corotation splicing body, annotates the position that the liquid hole is located the notch that is close to the groove of dodging the top cap body.
Further, the top cap still includes positive post and the negative pole post that sets up in the top cap body, and positive switching piece includes positive rotation splicing body and sets up in the first arch of positive rotation splicing body, and negative switching piece includes the negative switching body and sets up in the second arch of negative switching body, and positive switching piece is connected with the positive post through first arch, and negative switching piece passes through the second arch and is connected with the negative pole post.
The top cover further comprises an insulating piece arranged on the top cover body, the insulating piece is arranged on the periphery of each of the positive pole column and the negative pole column, the height of each of the positive pole column and the negative pole column is H1, the height of each of the insulating pieces is H2, and H1-H2 are more than or equal to 0mm and less than or equal to 1 mm; or the top cover further comprises an explosion-proof valve, the top cover body is provided with a mounting through hole, and the explosion-proof valve is located in the mounting through hole.
According to the utility model discloses a further aspect, the utility model provides a power battery, including foretell electric core subassembly and the casing of setting in electric core subassembly periphery.
According to the utility model discloses an on the other hand, the utility model provides a welding frock, welding frock are used for welding foretell battery pack spare, and welding frock includes first positioning mechanism, and the installation component is treated in first positioning mechanism's at least partial formation.
Use the technical scheme of the utility model, through set up on anodal switching piece and negative pole switching piece and prevent slow-witted structure, and prevent that slow-witted structure only installs to treating when installing component in first place, prevent slow-witted structure and just can with treat the installing component cooperation, can make anodal switching piece and the anodal ear of electric core be connected like this, the negative pole switching piece is connected with the negative pole ear of electric core, thereby prevent that anodal switching piece and negative pole switching piece from taking place the dislocation when being connected with electric core, and then can improve the yields of power battery's electric core subassembly.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an electric core assembly of a power battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating connection of a top cover of an electrode assembly of the power battery of fig. 1 and positive and negative electrode adaptor plates; and
fig. 3 shows a schematic structural view of a top cover of the cell assembly of the power cell of fig. 1.
Wherein the figures include the following reference numerals:
10. an electric core; 11. a positive tab; 12. a negative tab; 21. a positive electrode patch; 22. a negative pole switching piece; 23. a positive rotation contact piece body; 24. an avoidance groove; 25. a first protrusion; 26. a negative adapter body; 27. a second protrusion; 30. a fool-proof structure; 31. a first fool-proof hole; 32. a second fool-proof hole; 40. a top cover; 41. a top cover body; 42. a liquid injection hole; 43. a positive post; 44. a negative pole post; 45. an insulating member; 46. an explosion-proof valve.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that, in the embodiment of the present invention, in the assembly process of the power battery core assembly, the positive electrode adaptor sheet 21 is generally welded to the positive electrode tab 11 of the battery cell 10, the negative electrode adaptor sheet 22 is welded to the negative electrode tab 12 of the battery cell 10, and then the welded positive electrode adaptor sheet 21 is welded to the positive electrode post of the top cap 40, and the negative electrode adaptor sheet 22 is welded to the negative electrode post of the top cap 40.
As shown in fig. 1, an embodiment of the present invention provides an electric core assembly of a power battery, where the electric core assembly includes an electric core 10, a positive electrode adaptor 21, a negative electrode adaptor 22, and a fool-proof structure 30. The battery cell 10 comprises a winding core, a positive tab 11 connected with the winding core and a negative tab 12 connected with the winding core; the positive pole adapter plate 21 is positioned on one side of the battery cell 10, and the positive pole adapter plate 21 is connected with the positive pole lug 11; the negative pole adapter sheet 22 is connected with the negative pole tab 12, and the negative pole adapter sheet 22 and the positive pole adapter sheet 21 are positioned on the same side of the battery cell 10; the positive electrode adapter sheet 21 and/or the negative electrode adapter sheet 22 are/is provided with a fool-proof structure 30, the fool-proof structure 30 is configured in such a way that when the fool-proof structure 30 is installed to a component to be installed in a first direction, the fool-proof structure 30 can be matched with the component to be installed, so that the negative electrode tab 12 is connected with the negative electrode adapter sheet 22, and the positive electrode tab 11 is connected with the positive electrode adapter sheet 21; when the fool-proof structure 30 is mounted to the component to be mounted in an orientation other than the first orientation, the fool-proof structure 30 cannot be mated with the component to be mounted.
Among the above-mentioned technical scheme, through set up on anodal adaptor piece 21 and negative pole adaptor piece 22 and prevent slow-witted structure 30, and prevent that slow-witted structure 30 is installed to when waiting to install the part in first direction, prevent slow-witted structure 30 and wait to install the part cooperation, can make anodal adaptor piece 21 be connected with the anodal ear 11 of electric core 10 like this, negative pole adaptor piece 22 is connected with the negative pole ear 12 of electric core 10, thereby prevent that anodal adaptor piece 21 and negative pole adaptor piece 22 from taking place the dislocation when being connected with electric core 10, and then can improve the yields of power battery's electric core subassembly.
Preferably, in the embodiment of the present invention, the negative electrode adaptor plate 22 and the negative electrode tab 12, and the positive electrode adaptor plate 21 and the positive electrode tab 11 are connected by ultrasonic welding.
As shown in fig. 2, in the embodiment of the present invention, when the positive adapter plate 21 and the negative adapter plate 22 are both provided with the fool-proof structure 30, the fool-proof structure 30 provided on the positive adapter plate 21 includes a first fool-proof hole 31 capable of being engaged with the first positioning pin of the component to be mounted; the fool-proof structure 30 disposed on the negative adapter plate 22 includes a second fool-proof hole 32 snap-fitted with a second positioning pin of the component to be mounted.
Through the setting, first fool-proof hole 31 on the positive pole switching piece 21 can cooperate with the first locating pin joint of waiting to install the part, second fool-proof hole 32 on the negative pole switching piece 22 can cooperate with the second locating pin joint of waiting to install the part, can ensure like this to be connected positive pole switching piece 21 with anodal ear 11, negative pole switching piece 22 is connected with negative pole ear 12, thereby avoid leading to the problem emergence that negative pole switching piece 22 is connected or positive pole switching piece 21 is connected with anodal ear 12 because of putting the wrong position with anodal switching piece 21 because of negative pole switching piece 22, and then improve the yields of product.
As shown in fig. 2, in the embodiment of the present invention, the shape of the first fool-proof hole 31 is different from the shape of the second fool-proof hole 32.
Through the arrangement, when the negative adapter plate 22 and the positive adapter plate 21 are placed reversely, the first fool-proof hole 31 of the positive adapter plate 21 and the second positioning pin are mutually exclusive, so that the positive adapter plate 21 cannot be placed into a component to be installed; the second fool-proof hole 32 of the negative adapter plate 22 is mutually exclusive with the first positioning pin, so that the negative adapter plate 22 cannot be placed into a component to be installed, and the problem of low yield of products caused by misplacement of the negative adapter plate 22 and the positive adapter plate 21 is solved.
Preferably, in the embodiment of the present invention, the first fool-proof hole 31 is an elliptical hole, and the second fool-proof hole 32 is a square hole or a circular hole. The elliptical hole, the square hole and the round hole are simple in structure and convenient to process, so that the processing cost of the anode adapter sheet 21 and the cathode adapter sheet 22 can be reduced.
It should be noted that, in the embodiment of the present invention, the first fool-proof hole 31 may be a rectangular hole or a polygonal hole, etc., and the second fool-proof hole 32 may be a rectangular hole or a polygonal hole, etc., as long as the shape of the first fool-proof hole 31 is different from the shape of the second fool-proof hole 32.
As shown in fig. 2, in an embodiment of the present invention, the first fool-proof hole 31 is located at an end of the positive electrode interposer 21 close to the battery cell 10.
Through the setting, can make first prevent slow-witted hole 31 and be in the border position of anodal keysets 21 to can make first prevent slow-witted hole 31 and the better joint cooperation of first locating pin, like this, when anodal keysets 21 welds with anodal ear 11, can prevent that first prevent slow-witted hole 31 and first locating pin from taking place to interfere with welding position.
As shown in fig. 2, in an embodiment of the present invention, the second fool-proof hole 32 is located at an end of the negative electrode adaptor 22 close to the battery cell 10.
Through the setting, can make the second prevent slow-witted hole 32 in the border position of negative pole keysets 22 to can make the second prevent slow-witted hole 32 and the cooperation of the better joint of second locating pin, like this, when negative pole keysets 22 and negative pole ear 12 welding, can prevent that the second from preventing slow-witted hole 32 and second locating pin and welding position from taking place to interfere.
As shown in fig. 2, in the embodiment of the present invention, the cell assembly further includes a top cap 40, the top cap 40 includes a top cap body 41 and a liquid injection hole 42 disposed on the top cap body 41, the liquid injection hole 42 cooperates with the fool-proof portion of the foundation to be installed, and the positive adapter plate 21 and the negative adapter plate 22 are disposed on the same side of the top cap body 41.
Through the arrangement, when the anode adapter sheet 21 and the cathode adapter sheet 22 are connected with the top cover 40, the fool-proof part can position the top cover 40 in fig. 2 by matching with the liquid injection hole 42, so that the placing direction of the top cover 40 in fig. 2 can be ensured to be correct (namely, the anode of the top cover 40 can correspond to the anode adapter sheet 21, and the cathode of the top cover 40 can correspond to the cathode adapter sheet 22), and thus, the anode adapter sheet 21 and the cathode adapter sheet 22 can be ensured to be correctly connected with the left end and the right end of the top cover 40.
Further, when the left end and the right end of the top cover 40 in fig. 2 are placed reversely, the liquid injection hole 42 and the fool-proof portion of the foundation to be installed are mutually exclusive, so that the top cover 40 cannot be installed on the foundation to be installed, and the positive adapter plate 21 and the negative adapter plate 22 cannot be connected with the top cover 40, thereby avoiding the problem of connection error.
As shown in fig. 2, in the embodiment of the present invention, the positive electrode adaptor piece 21 includes the positive rotation adaptor piece body 23 and the avoiding groove 24 provided in the positive rotation adaptor piece body 23, and the liquid injection hole 42 is located at the position of the top cover body 41 close to the notch of the avoiding groove 24.
Through the arrangement, interference between the forward rotation splicing body 23 and the liquid injection hole 42 can be prevented, so that the power battery can be better injected with liquid in the subsequent liquid injection process, the forward rotation splicing body 23 can be better attached to the top cover 40, and the forward rotation splicing body 23 is better welded on the top cover 40.
Specifically, in the embodiment of the present invention, the one end of the avoiding groove 24 forms an arc-shaped wall surface, and the other end of the avoiding groove 24 extends to the edge of the positive adapter sheet body 23 close to the liquid injection hole 42.
As shown in fig. 3, in the embodiment of the present invention, the top cover 40 further includes a positive pole 43 and a negative pole 44 disposed on the top cover body 41, the positive adapter sheet 21 includes the positive adapter sheet body 23 and a first protrusion 25 disposed on the positive adapter sheet body 23, the negative adapter sheet 22 includes the negative adapter body 26 and a second protrusion 27 disposed on the negative adapter body 26, the positive adapter sheet 21 is connected to the positive pole 43 through the first protrusion 25, and the negative adapter sheet 22 is connected to the negative pole 44 through the second protrusion 27.
With the above arrangement, the positive electrode tab 21 may be connected to the positive post 43 through the first protrusion 25, and the negative electrode tab 22 may be connected to the negative post 44 through the second protrusion 27, so that the positive electrode tab 11 of the battery cell 10 is connected to the positive post 43, and the negative electrode tab 12 of the battery cell 10 is connected to the negative post 44.
With the above, in the embodiment of the present invention, the top cap 40 further includes a positive mounting hole and a negative mounting hole which are disposed on the top cap body 41, the positive post 43 is located in the positive mounting hole and is insulated and sealed with the positive mounting hole, and the negative post 44 is located in the negative mounting hole and is insulated and sealed with the negative mounting hole.
Preferably, in the embodiment of the present invention, the first protrusion 25 and the positive post 43 and the second protrusion 27 and the negative post 44 are connected by laser welding.
As shown in fig. 3, in the embodiment of the present invention, the top cap 40 further includes an insulating member 45 disposed on the top cap body 41, the insulating member 45 is disposed on the outer peripheries of the positive post 43 and the negative post 44, the height of the positive post 43 and the height of the negative post 44 are H1, and the height of the insulating member 45 is H2, wherein H1-H2 are not less than 0mm and not more than 1 mm.
Through the setting, can be with insulating between positive post 43 and the negative pole post 44 and the top cap 40 to improve top cap 40's security, and set up positive post 43 and negative pole post 44 for insulating part 45 protrusion, like this, when the mould equipment in later stage is assembled, can avoid making the problem that insulating part 45 melts because of the high temperature that welding bus bar (Busbar) brought, thereby avoid causing the problem of battery potential safety hazard.
As shown in fig. 3, in the embodiment of the present invention, the top cover 40 further includes an explosion-proof valve 46, the top cover body 41 is provided with a mounting through hole, and the explosion-proof valve 46 is located in the mounting through hole.
Through the arrangement, when the internal pressure of the power battery rises, the electrolyte can burst the explosion-proof sheet of the explosion-proof valve 46, so that the heat inside the power battery can be effectively released in time, and the problem that the power battery explodes due to overlarge pressure is avoided.
An embodiment of the utility model provides a power battery, including foretell electric core subassembly and the casing of setting in electric core subassembly periphery. The power battery has all the advantages of the battery core assembly, and the details are not repeated.
An embodiment of the utility model provides a welding frock, welding frock are used for welding foretell electric core subassembly, and welding frock includes first positioning mechanism, and the installation component is treated in first positioning mechanism's at least partial formation.
Through the above setting, anodal switching piece 21 first prevent slow-witted hole 31 can cooperate with the first locating pin joint of first positioning mechanism, negative pole switching piece 22 second prevent slow-witted hole 32 can cooperate with the second locating pin joint of first positioning mechanism, thus, can fix a position anodal switching piece 21 and negative pole switching piece 22 on the one hand, on the other hand can prevent that anodal switching piece 21 and negative pole switching piece 22 from taking place the dislocation when being connected with electric core 10, thereby make anodal switching piece 21 can be connected with the positive ear of electric core 10, negative pole switching piece 22 is connected with the negative ear of electric core 10, and then can improve power battery's the yields of the electric core subassembly.
Preferably, in an embodiment of the present invention, the welding tool is an ultrasonic welding tool.
Preferably, in the embodiment of the present invention, the height of the first positioning pin and the second positioning pin is a1, and the thickness of the connecting piece is a2, wherein 0.5 is equal to or less than a1/a2 is equal to or less than 2. In this way, the positive electrode tab 21 and the negative electrode tab 22 can be positioned better.
The embodiment of the utility model provides a laser welding frock is still provided, all carries out welded connection through above-mentioned laser welding frock between the anodal post 43 of positive pole adaptor piece 21 and top cap 40 and between the negative pole post 44 of negative pole adaptor piece 22 and top cap 40. Wherein, the laser welding frock can adopt the laser welding equipment among the prior art.
It should be noted that the power of the positive electrode tab 21 and the positive electrode post 43 during laser welding and the power of the negative electrode tab 22 and the negative electrode post 44 during laser welding are different by a multiple, and there is a risk of welding through, cold welding, and the like when welding is performed with different powers.
Therefore, preferably, the utility model discloses a laser welding frock still includes the third locating pin with annotate liquid hole 42 complex, like this, when carrying out laser welding, can prevent that positive pole switching piece 21 from carrying out the welding with anodal post 43 when and negative pole switching piece 22 from carrying out the problem that takes place the dislocation when welding with negative pole post 44 (avoid anodal switching piece 21 and negative pole post 44 to weld and negative pole switching piece 22 and anodal post 43 to carry out the welded condition), thereby avoid producing and weld and wear, rosin joint scheduling problem, and then can carry out the secondary when the welding and prevent slow-witted.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: through set up on anodal switching piece and negative pole switching piece and prevent slow-witted structure to prevent that slow-witted structure from installing to when treating the installation component in first direction, prevent that slow-witted structure just can with treat the installation component cooperation, can make anodal switching piece be connected with the anodal ear of electric core like this, the negative pole switching piece is connected with the negative pole ear of electric core, thereby prevent that anodal switching piece and negative pole switching piece from taking place the dislocation when being connected with electric core, and then can improve the yields of power battery's electric core subassembly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric core assembly of a power battery, characterized in that the electric core assembly comprises:
the battery cell (10) comprises a winding core and a positive electrode tab (11) and a negative electrode tab (12) which are connected with the winding core;
the positive pole adapter sheet (21) is positioned on one side of the battery cell (10), and the positive pole adapter sheet (21) is connected with the positive pole lug (11);
the negative pole adapter sheet (22) is connected with the negative pole lug (12), and the negative pole adapter sheet (22) and the positive pole adapter sheet (21) are positioned on the same side of the battery cell (10);
the fool-proof structure (30) is arranged on the positive electrode adapter sheet (21) and/or the negative electrode adapter sheet (22), the fool-proof structure (30) is configured to be capable of being matched with a component to be installed when the fool-proof structure (30) is installed on the component to be installed in a first direction, so that the negative electrode lug (12) is connected with the negative electrode adapter sheet (22), and the positive electrode lug (11) is connected with the positive electrode adapter sheet (21); when the fool-proof structure (30) is mounted to the component to be mounted in an orientation other than the first orientation, the fool-proof structure (30) cannot be mated with the component to be mounted.
2. The battery core assembly of the power battery according to claim 1, wherein when the fool-proof structure (30) is disposed on each of the positive adapter sheet (21) and the negative adapter sheet (22), the fool-proof structure (30) disposed on the positive adapter sheet (21) includes a first fool-proof hole (31) capable of being snap-fitted with a first positioning pin of the component to be mounted; the fool-proof structure (30) arranged on the negative adapter plate (22) comprises a second fool-proof hole (32) matched with the second positioning pin of the component to be installed in a clamping mode.
3. The power cell core assembly according to claim 2,
the shape of the first fool-proof hole (31) and the shape of the second fool-proof hole (32) are different; alternatively, the first and second electrodes may be,
the first fool-proof hole (31) is an elliptical hole, and the second fool-proof hole (32) is a square hole or a round hole.
4. The power cell core assembly according to claim 2,
the first fool-proof hole (31) is positioned at one end, close to the battery core (10), of the positive pole adapter sheet (21); alternatively, the first and second electrodes may be,
the second fool-proof hole (32) is located at one end, close to the battery core (10), of the negative pole adapter sheet (22).
5. The battery cell assembly of the power battery according to any one of claims 1 to 4, wherein the battery cell assembly further comprises a top cover (40), the top cover (40) comprises a top cover body (41) and a liquid injection hole (42) arranged on the top cover body (41), the liquid injection hole (42) is matched with a fool-proof portion of a foundation to be installed, and the positive electrode adapter sheet (21) and the negative electrode adapter sheet (22) are located on the same side of the top cover body (41).
6. The battery core assembly of the power battery according to claim 5, wherein the positive electrode adapter sheet (21) comprises a positive rotation connecting sheet body (23) and an avoiding groove (24) arranged on the positive rotation connecting sheet body (23), and the liquid injection hole (42) is positioned at a position of the top cover body (41) close to a notch of the avoiding groove (24).
7. The power battery core assembly according to claim 5, wherein the top cover (40) further comprises a positive pole column (43) and a negative pole column (44) arranged on the top cover body (41), the positive pole adapter sheet (21) comprises a positive rotation adapter sheet body (23) and a first protrusion (25) arranged on the positive rotation adapter sheet body (23), the negative pole adapter sheet (22) comprises a negative adapter body (26) and a second protrusion (27) arranged on the negative adapter body (26), the positive pole adapter sheet (21) is connected with the positive pole column (43) through the first protrusion (25), and the negative pole adapter sheet (22) is connected with the negative pole column (44) through the second protrusion (27).
8. The cell assembly of the power battery according to claim 7, wherein the top cover (40) further comprises an insulator (45) arranged on the top cover body (41), the insulator (45) is arranged on the periphery of each of the positive pole post (43) and the negative pole post (44), the height of each of the positive pole post (43) and the negative pole post (44) is H1, the height of each of the insulators (45) is H2, and H1-H2 are 0mm and 1 mm; or, top cap (40) still include explosion-proof valve (46), top cap body (41) are equipped with the installation through-hole, explosion-proof valve (46) are located in the installation through-hole.
9. A power cell comprising the cell assembly of any one of claims 1 to 8 and a housing disposed at the periphery of the cell assembly.
10. A welding tool, characterized in that the welding tool is used for welding the cell component of any one of claims 1 to 8, the welding tool comprises a first positioning mechanism, and at least part of the first positioning mechanism forms the component to be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120847546.6U CN215184437U (en) | 2021-04-23 | 2021-04-23 | Power battery's electric core subassembly, power battery and welding frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120847546.6U CN215184437U (en) | 2021-04-23 | 2021-04-23 | Power battery's electric core subassembly, power battery and welding frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215184437U true CN215184437U (en) | 2021-12-14 |
Family
ID=79362630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120847546.6U Active CN215184437U (en) | 2021-04-23 | 2021-04-23 | Power battery's electric core subassembly, power battery and welding frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215184437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036554A1 (en) * | 2022-08-18 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
-
2021
- 2021-04-23 CN CN202120847546.6U patent/CN215184437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036554A1 (en) * | 2022-08-18 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and electric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215184437U (en) | Power battery's electric core subassembly, power battery and welding frock | |
| WO2024099177A1 (en) | End cap assembly, energy storage apparatus, and electric device | |
| CN215418343U (en) | Battery top cap | |
| WO2022160297A1 (en) | Battery pack and manufacturing method therefor | |
| CN219739247U (en) | Cover plate assembly and battery | |
| CN219106220U (en) | Lower plastic part and battery cell | |
| CN113130968B (en) | Manufacturing method of battery module and battery module | |
| JP2004228013A (en) | Lid for control valve type lead-acid storage battery | |
| CN215418357U (en) | Novel polymer cylinder lithium cell | |
| CN218070155U (en) | End cover assembly of battery, battery pack and electric equipment | |
| CN220306463U (en) | Tab pin and battery | |
| CN220628149U (en) | Integrated confluence disc and end cover assembly | |
| CN218300116U (en) | Battery with a battery cell | |
| CN218299985U (en) | Power battery top cap and power battery | |
| CN220291008U (en) | High-multiplying-power lithium ion explosion-proof battery | |
| CN217468602U (en) | Battery cell and battery | |
| CN220106823U (en) | Battery cell | |
| CN220439741U (en) | Cylindrical battery extremely simple bottom structure | |
| CN218975595U (en) | Battery cell | |
| CN219739234U (en) | Novel lithium battery cover plate positioning structure | |
| CN221009141U (en) | Battery pack upper cover and battery pack | |
| CN219066999U (en) | Battery cover plate and battery pack | |
| CN219163620U (en) | Explosion-proof valve structure, energy storage unit and power device | |
| CN114678666B (en) | Tab, battery cell, battery and electronic device | |
| EP4297171A1 (en) | Connector and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |