CN212113770U - Power battery's electric core apron, electric core, module and battery package - Google Patents
Power battery's electric core apron, electric core, module and battery package Download PDFInfo
- Publication number
- CN212113770U CN212113770U CN202021260527.5U CN202021260527U CN212113770U CN 212113770 U CN212113770 U CN 212113770U CN 202021260527 U CN202021260527 U CN 202021260527U CN 212113770 U CN212113770 U CN 212113770U
- Authority
- CN
- China
- Prior art keywords
- power battery
- insulating plastic
- location structure
- utmost point
- cover plate
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model belongs to the power battery field discloses a power battery's electric core apron, electric core, module and battery package, electric core apron includes aluminium sheet, utmost point post, goes up insulating plastic circle, lower insulating plastic circle, sealing washer and welding piece, the outstanding upper surface in utmost point post hole periphery of insulating plastic circle is equipped with at least one first location structure down, the correspondence of utmost point post hole week wall of welding piece is equipped with at least one second location structure, first location structure's quantity with second location structure's quantity equals and the position is corresponding, first location structure with second location structure cooperatees. The utility model discloses the utmost point post hole periphery of insulating plastic circle increases the arch under, corresponds at the periphery in welding piece utmost point post hole and sets up the recess, and the location fit through arch and recess will be insulating plastic circle and welding piece link together down, need not the location frock, simplifies the locate mode to improve positioning accuracy, finally improve the convenience and the efficiency of assembly.
Description
Technical Field
The utility model belongs to the power battery field specifically, relates to a power battery's electric core apron, electric core, module and battery package.
Background
The core power source of the electric automobile is a power battery, so the performance of the power battery is particularly important. The battery core is used as a storage unit of a common power battery and mainly comprises a cover plate, an aluminum shell and a pole group. The bottom of the cover plate plays the roles of insulation and supporting the protective electrode group, and the lower insulating plastic ring is arranged at the bottom of the cover plate, so that the fixing structure of the lower insulating plastic ring at the bottom of the cover plate is of great importance to the safety of the cover plate.
The lower insulating plastic ring at present is connected with apron smooth aluminum sheet through ultrasonic bonding's mode, and when ultrasonic bonding, mainly fix insulating plastic ring down through the frock, the preparation frock has increased manufacturing cost, consumes man-hour, and production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power battery's electricity core cover plate, the utmost point post hole periphery of insulating plastic circle increases the arch under, corresponds at the periphery in welding piece utmost point post hole and sets up the recess, and the location fit through arch and recess links together insulating plastic circle and welding piece down, need not the location frock, simplifies the locate mode to improve positioning accuracy, finally improve the convenience and the efficiency of assembly.
In order to realize the above-mentioned purpose, first aspect, the utility model provides a power battery's electricity core apron, including aluminium sheet, utmost point post, go up insulating plastic circle, sealing washer and welding piece down, the outstanding upper surface in utmost point post hole periphery of insulating plastic circle is equipped with at least one first location structure down, the correspondence of utmost point post hole week wall of welding piece is equipped with at least one second location structure, first location structure's quantity with the quantity of second location structure equals and the position is corresponding, first location structure with the second location structure cooperatees.
Further, the first positioning structure is a protrusion, the second positioning structure is a groove, and the protrusion is embedded into the groove.
Further, the first positioning structure is a pin, the second positioning structure is a pin hole, and the pin is embedded into the pin hole.
Further, the protrusions and the grooves are of semi-cylindrical structures.
Furthermore, the protrusions and the grooves are four at intervals of 90 degrees, and the protrusions correspond to the grooves one to one.
Further, the axial length of the second positioning structure is equal to the thickness of the welding piece, and the height of the first positioning structure protruding out of the upper surface of the lower insulating plastic ring is equal to the axial length of the second positioning structure.
Furthermore, the lower insulating plastic ring is an insulating plastic ring formed by integrally forming the anode and the cathode.
In a second aspect, the present invention provides a power battery cell, including any one of the above technical solutions.
The third aspect, the utility model provides a power battery module, including the second aspect power battery electricity core.
In a fourth aspect, the present invention provides a power battery pack, including the third aspect, a power battery module.
Through above-mentioned technical scheme, the utmost point post hole periphery of insulating plastic circle increases protrudingly under, corresponds at the periphery in the utmost point post hole of welding piece and sets up the recess, and the location fit through protruding and recess will be insulating plastic circle and welding piece link together down, need not the location frock, simplifies the locate mode to improve positioning accuracy, finally improve the convenience and the efficiency of assembly.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 is an exploded view of an embodiment of a cell cover plate of a power battery of the present invention;
fig. 2 is a top view of an embodiment of a cell cover plate of the power battery of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged partial view of the left end of FIG. 3;
fig. 5 is a schematic structural view of a lower insulating plastic ring in an embodiment of a cell cover plate of the power battery of the present invention;
fig. 6 is a partially enlarged view of a lower insulating plastic ring in an embodiment of a cell cover plate of the power battery of the present invention;
fig. 7 is a schematic structural diagram of a welding sheet in an embodiment of a cell cover plate of the power battery of the present invention;
fig. 8 is an exploded view of the installation of the lower insulating plastic ring and the welding sheet in one embodiment of the cell cover plate of the power battery of the present invention.
Description of the reference numerals
Polishing an aluminum sheet 1; a pole 2; an upper insulating plastic ring 3; a lower insulating plastic ring 4; the protrusions 41; a seal ring 5; a welding sheet 6; a groove 61.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
It should be noted that, in the following description of the technical solutions of the present invention, the terms "upper" and "lower" are used when indicating the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, "axial" refers to the direction in which the axis of a certain component extends, "radial" is the direction perpendicular to the "axial", and "circumferential" refers to the direction around the outer circumference of a certain component.
As shown in fig. 1-8, the utility model discloses an embodiment of power battery's electric core apron, including aluminium sheet 1, utmost point post 2, go up insulating plastic circle 3, lower insulating plastic circle 4, sealing washer 5 and welding piece 6, the outstanding upper surface in utmost point post hole periphery of insulating plastic circle 4 is equipped with at least one arch 41 down, the correspondence of welding piece 6's utmost point post hole week wall is equipped with at least one recess 61, protruding 41 the quantity with the quantity of recess 61 equals and the position is corresponding, protruding 41 imbeds in the recess 61. The protrusions 41 and the grooves 61 correspond to each other, and when the number of the protrusions and the grooves exceeds one, a one-to-one correspondence is provided. Protruding 41 embedding recess 61 can realize down the fixed of insulating plastic circle 4 positions, and the location is accurate high-efficient, need not extra location frock and can fix a position insulating plastic circle 4 down on welding piece 6, convenient and fast, and the location is accurate, must improve assembly efficiency and quality. As shown in fig. 5-8, the four protrusions 41 are distributed at intervals of 90 ° along the circumference of the pole hole of the lower insulating plastic ring 4, and one side of the protrusion 41 facing the pole hole is on the same plane as the circumferential wall of the pole hole; the four grooves 61 are distributed at intervals of 90 degrees along the peripheral wall of the pole hole of the welding sheet 6, and during assembly, after the four protrusions 41 are aligned with the four grooves 61 in a one-to-one correspondence manner, a certain axial force is applied to the lower insulating plastic ring 4, so that the protrusions 41 can be embedded into the grooves 61, the lower insulating plastic ring 4 is positioned, and then welding operation is performed. This kind of location structure of many protruding many recesses can make under insulating plastic circle 4 and weld 6 positions after the cooperation firm on the one hand, can not take place radial displacement, and on the other hand multiple spot contact connection can make under insulating plastic circle 4 and weld 6 firm in connection of piece, can not take place relative displacement. In addition, the existence of the groove 61 can shorten the bearing support width of the welding sheet 6, namely the groove 61 is empty and is not stressed, so that the stress width of the welding sheet 6 is shortened by the size of one groove, the stress area is reduced, and deformation is not easy to generate during stress.
It should be noted that the above-mentioned terminal post 2, the upper insulating plastic ring 3, the sealing ring 5 and the welding sheet 6 are all arranged in pairs according to the positive and negative electrodes, and the above description covers the corresponding components of the positive electrode part and the negative electrode part, and is not separately described one by one, and the same applies below.
In an embodiment of the electrical core cover plate of the power battery of the present invention, as shown in fig. 5-8, the protrusion 41 and the groove 61 are both semi-cylindrical structures, wherein one side of the protrusion 41 facing the pole hole of the downward insulating plastic ring 4 and the peripheral wall of the pole hole are on the same arc surface, and one side of the protrusion 41 facing away from the pole hole is a semi-cylindrical surface; the groove 61 is a semi-cylindrical notch in the peripheral wall of the pole hole of the weld tab 6. The semi-cylindrical structure can maximize the contact area between the protrusion 41 and the groove 61, and improve the firmness of the fit.
The utility model discloses an in an embodiment of power battery's electric core apron, the axial length of recess 61 equals with the thickness of welding piece 6, and recess 61 is the whole perisporium that link up welding piece 6 utmost point post holes promptly. Accordingly, the height of the protrusion 41 relative to or protruding from the upper surface of the lower insulating plastic ring 4 is equal to the axial length of the groove 61, so that the protrusion 41 and the groove 61 have the maximum matching length, and the matching firmness is further improved.
In an embodiment of the battery cover plate of the power battery of the present invention, the protrusion 41 may be replaced by a pin, and the groove 61 may be replaced by a pin hole. The pin can encircle the utmost point post hole setting of insulating plastic circle 4 down on its upper surface, and the pinhole can encircle the utmost point post hole setting of welding piece 6 on its surface, can be counter bore or through-hole, and the hole depth equals with the length of pin. The pin is embedded into the pin hole to realize the positioning of the lower insulating plastic ring 4. Of course, the first positioning structure and the second positioning structure in other structural forms can be adopted, and adaptability selection can be carried out according to actual working conditions and machining conditions, so that the various selectivity of the structural form of the positioning structure is improved, and different working conditions and machining conditions can be better adapted.
The utility model discloses an in an embodiment of power battery's electric core apron, lower insulating plastic circle 4 is positive negative pole position integrated into one piece's structure, is convenient for like this with each part at utmost point post 2 radial ascending displacement control in the allowed range, is favorable to improving the assembly precision.
On the basis of above-mentioned power battery's electric core cover plate embodiment, the utility model discloses in the embodiment of the power battery electricity core of second aspect, including the aforesaid power battery's electric core cover plate, all beneficial effects that the technical scheme of consequently having above-mentioned power battery's electric core cover plate embodiment at least brought. In a similar way, the utility model discloses the power battery module of third aspect includes the power battery electricity core of second aspect, and the power battery package of fourth aspect includes the power battery module of third aspect, also has all beneficial effects that the technical scheme of above-mentioned power battery's electric core cover plate embodiment brought at least.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (10)
1. The utility model provides a power battery's electric core apron, includes aluminium sheet (1), utmost point post (2), goes up insulating plastic circle (3), insulating plastic circle (4), sealing washer (5) and welding piece (6) down, its characterized in that, the outstanding upper surface in utmost point post hole periphery of insulating plastic circle (4) is equipped with at least one first location structure down, the correspondence of utmost point post hole week wall of welding piece (6) is equipped with at least one second location structure, first location structure's quantity with second location structure's quantity equals and the position is corresponding, first location structure with second location structure cooperatees.
2. The cell cover plate of a power battery according to claim 1, wherein the first positioning structure is a protrusion (41), the second positioning structure is a groove (61), and the protrusion (41) is embedded in the groove (61).
3. The cell cover plate of a power battery of claim 1, wherein the first positioning structure is a pin, and the second positioning structure is a pin hole, and the pin is embedded in the pin hole.
4. The battery core cover plate of the power battery according to claim 2, wherein the protrusion (41) and the groove (61) are both semi-cylindrical structures.
5. The battery cell cover plate of the power battery according to claim 4, wherein the protrusions (41) and the grooves (61) are four at intervals of 90 °, and each protrusion (41) corresponds to each groove (61) in a one-to-one manner.
6. The cell cover plate of the power battery according to claim 1, wherein the axial length of the second positioning structure is equal to the thickness of the welding sheet (6), and the height of the first positioning structure protruding out of the upper surface of the lower insulating plastic ring (4) is equal to the axial length of the second positioning structure.
7. The battery core cover plate of the power battery according to any one of claims 1 to 6, wherein the lower insulating plastic ring (4) is an insulating plastic ring formed by integrally forming a positive electrode and a negative electrode.
8. A power battery cell, characterized by comprising the cell cover plate of the power battery of any one of claims 1 to 7.
9. A power battery module, characterized by comprising the power battery cell of claim 8.
10. A power battery pack, characterized by comprising the power battery module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021260527.5U CN212113770U (en) | 2020-06-30 | 2020-06-30 | Power battery's electric core apron, electric core, module and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021260527.5U CN212113770U (en) | 2020-06-30 | 2020-06-30 | Power battery's electric core apron, electric core, module and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212113770U true CN212113770U (en) | 2020-12-08 |
Family
ID=73628742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021260527.5U Active CN212113770U (en) | 2020-06-30 | 2020-06-30 | Power battery's electric core apron, electric core, module and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212113770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285150A (en) * | 2021-05-19 | 2021-08-20 | 浙江中泽精密科技有限公司 | Cover plate structure of power battery |
-
2020
- 2020-06-30 CN CN202021260527.5U patent/CN212113770U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285150A (en) * | 2021-05-19 | 2021-08-20 | 浙江中泽精密科技有限公司 | Cover plate structure of power battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215266482U (en) | Power battery cover and power battery | |
| EP4145596A1 (en) | Button battery | |
| EP4322314A1 (en) | Lithium battery and preparation method therefor | |
| CN218351570U (en) | Power battery top cover and power battery thereof | |
| CN212113770U (en) | Power battery's electric core apron, electric core, module and battery package | |
| CN212725438U (en) | Power battery's electric core apron, electric core, module and battery package | |
| CN115389795B (en) | Cylindrical battery probe | |
| CN218215609U (en) | Cylindrical battery | |
| CN216161822U (en) | Double-sealing ring integrated injection molding battery cover plate | |
| CN213304202U (en) | Integral type battery module end plate | |
| CN212659600U (en) | Power battery's electric core apron, electric core, module and battery package | |
| CN219739108U (en) | Battery post mounting structure and secondary battery | |
| CN216980656U (en) | Low-cost battery top cover and lithium cell | |
| CN219717171U (en) | Cylindrical battery | |
| CN218957874U (en) | Novel battery cover plate structure | |
| CN220672711U (en) | Battery cell top cover, battery cell and battery pack | |
| CN220021336U (en) | Cover plate assembly of battery, battery and electric equipment | |
| CN219610589U (en) | Cover plate assembly, battery monomer and battery pack | |
| CN216848072U (en) | Inspection device and inspection connection structure | |
| CN220066029U (en) | Cylindrical battery, battery pack and electric equipment thereof | |
| CN221102246U (en) | Cover plate of cylindrical battery and cylindrical battery | |
| CN219534792U (en) | Battery and electric equipment | |
| CN221009064U (en) | Cover plate assembly and battery cell with same | |
| CN219286603U (en) | Lithium battery module and lithium battery | |
| CN219350581U (en) | Cylindrical lithium battery with positive electrode and negative electrode in same direction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |