CN219591616U - Assembly structure of positive pole post and positive current collecting disc, battery and vehicle - Google Patents
Assembly structure of positive pole post and positive current collecting disc, battery and vehicle Download PDFInfo
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- CN219591616U CN219591616U CN202320808836.9U CN202320808836U CN219591616U CN 219591616 U CN219591616 U CN 219591616U CN 202320808836 U CN202320808836 U CN 202320808836U CN 219591616 U CN219591616 U CN 219591616U
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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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Abstract
An assembly structure of a positive electrode post and a positive electrode current collecting plate, a battery and a vehicle. The assembly structure comprises: the positive electrode current collecting disc is provided with a riveting hole; the positive pole is provided with a riveting column at one end, a stop part at the other end and a mounting part in the middle, and the riveting column is riveted to the riveting hole; and the insulating assembly is sleeved on the mounting part and is pressed between the stop part and the positive current collecting disc. The positive pole post and the positive current collecting disc are riveted and connected together outside the shell of the battery, the positive pole lug of the winding core and the positive current collecting disc are also welded and connected together outside the shell of the battery by laser, the shell cannot interfere the riveting process of the positive pole post and the positive current collecting disc, and cannot interfere the laser welding process of the positive pole lug of the winding core and the positive current collecting disc, so that the assembly structure is applied to the battery, the assembly process of the battery is simpler and more convenient, and the safety and reliability of the battery are more easily ensured.
Description
Technical Field
The present disclosure relates to vehicle technology, and more particularly to a battery top cover assembly, a power battery, and a vehicle.
Background
Currently, cylindrical batteries include a positive current collecting plate, a winding core, and a housing. One end of the shell is provided with a through hole, the end wall of the other end is closed and integrated with a positive pole post, one end of the winding core is provided with a positive pole lug, and the other end is provided with a negative pole lug. The welding sequence of the positive electrode current collecting disc, the positive electrode lug and the positive electrode post is as follows: the method comprises the steps of firstly carrying out laser welding on the positive electrode current collecting disc and the positive electrode lug, and then carrying out ultrasonic welding on the positive electrode current collecting disc and the positive electrode post. The positive electrode current collecting disc and the positive electrode post can only be subjected to ultrasonic welding in the shell, the welding difficulty and the detection difficulty of the welding quality are both high, and the safety and the reliability of the battery are difficult to ensure.
Disclosure of Invention
The utility model provides an assembling structure of a positive pole post and a positive current collecting disc, which is simpler and more convenient to operate for assembling the positive current collecting disc and the positive pole post.
The utility model also provides a battery and a vehicle.
The utility model provides an assembling structure of a positive pole post and a positive current collecting disc, which comprises the following components: the positive electrode current collecting disc is provided with a riveting hole; the positive pole is provided with a riveting column at one end, a stop part at the other end and a mounting part in the middle, and the riveting column is riveted to the riveting hole; and the insulating assembly is sleeved on the mounting part and is pressed between the stop part and the positive current collecting disc.
In some exemplary embodiments, the positive current collecting disc includes a rivet ring located at the inner ring and a positive tab connection ring located at the outer ring, the rivet ring is configured to form the rivet hole, the insulation assembly is pressed between the stopper and the rivet ring, and a thickness of the rivet ring is greater than a thickness of the positive tab connection ring.
In some exemplary embodiments, the positive tab connection ring is connected at an end of the rivet ring remote from the insulation assembly, and the rivet ring has a thickness of 0.7mm to 1.5mm, and the positive tab connection ring has a thickness of 0.2mm to 0.5mm.
In some exemplary embodiments, the insulation assembly includes a first insulation member pressed between the welding member and the stopper, a welding member provided with a welding portion located radially outward of the stopper and the first insulation member, and a second insulation member pressed between the welding member and the positive current collecting plate.
In some exemplary embodiments, the weld is a step, and the step surface of the step is located at the edge of the weld and faces away from the positive current collecting plate.
In some exemplary embodiments, the mounting structure further comprises: and the sealing piece is arranged in an area surrounded by the mounting part, the stop part and the insulating assembly.
In some exemplary embodiments, the mounting structure further comprises: the winding core is provided with a positive electrode lug and a negative electrode lug, and the positive electrode current collecting disc is connected with the positive electrode lug in a welding way; and the negative electrode current collecting disc is connected with the negative electrode lug in a welding way.
The battery provided by the embodiment of the utility model comprises: the assembly structure of any one of the above embodiments; and the end wall of one end of the shell is provided with a penetrating hole, the assembly structure is positioned in the shell, the stop part extends out of the penetrating hole, and the insulating assembly is connected with the wall of the penetrating hole.
In some exemplary embodiments, the housing includes: a housing having a through hole at one end thereof and the through hole at the end wall at the other end thereof, the assembly structure being fitted into the housing from the through hole; and the edge of the negative electrode cover plate is welded and connected with the mouth wall of the through hole.
The vehicle provided by the embodiment of the utility model comprises the battery in any embodiment.
According to the technical scheme provided by the utility model, the positive pole post and the positive current collecting disc are riveted and connected together outside the shell of the battery, the positive pole lug of the winding core and the positive current collecting disc are also welded and connected together outside the shell of the battery by laser, the shell does not interfere the riveting process of the positive pole post and the positive current collecting disc or the laser welding process of the positive pole lug of the winding core and the positive current collecting disc, and therefore, the assembly structure is applied to the battery, the assembly process of the battery is simpler and more convenient, and the safety and reliability of the battery are more easily ensured.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. Other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide an understanding of the principles of the utility model, and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, without limitation, the principles of the utility model.
FIG. 1 is a schematic cross-sectional structural view of a battery according to some embodiments;
fig. 2 is a partial schematic structure of the battery shown in fig. 1;
fig. 3 is an exploded view of the battery shown in fig. 1;
fig. 4 is a partial schematic view of an exploded construction of the assembled structure of fig. 1, with the cell and anode current collector plates not shown;
fig. 5 is a schematic cross-sectional view of the assembled components of fig. 4.
The correspondence between the reference numerals and the component names in fig. 1 to 5 is:
100 assembly structure, 110 positive pole post, 111 riveting post, 112 stop part, 113 installation part, 120 positive current collecting disc, 121 riveting hole, 122 riveting ring, 123 positive ear connecting ring, 131 first insulating piece, 132 welding piece, 133 second insulating piece, 134 welding part, 140 sealing piece, 150 winding core, 160 negative current collecting disc, 210 shell, 211 penetrating hole, 212 penetrating hole, 220 negative cover plate, 300 third insulating piece and 400 insulating tape.
Detailed Description
The present utility model has been described in terms of several embodiments, but the description is illustrative rather than limiting, and for the purpose of clarity, technical solution and advantages of the present utility model, the embodiments of which will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.
The battery according to the embodiment of the present utility model, as shown in fig. 1 to 5, includes: assembling the structure 100; and a housing having a penetrating hole 211 formed in an end wall of one end thereof, the assembly structure 100 being located in the housing. The mounting structure 100 includes: the positive electrode current collecting plate 120, the positive electrode current collecting plate 120 is provided with a riveting hole 121; a positive electrode post 110, wherein one end of the positive electrode post 110 is provided with a riveting post 111, the other end is provided with a stop part 112, the middle part is provided with a mounting part 113, and the riveting post 111 is riveted in a riveting hole 121; and an insulating member having a welding portion 134, the insulating member being fitted over the mounting portion 113 and being pressed between the stopper portion 112 and the positive electrode collector plate 120, the welding portion 134 being located radially outside the stopper portion 112, the welding portion 134 being provided in welded connection with a wall of the through hole 211 of the case (the welded connection may be provided as a laser welded connection). Wherein, the assembly structure 100 is located in the housing, the stop portion 112 extends out of the housing from the through hole 211, and the welding portion 134 is welded to the wall of the through hole 211.
The positive pole post 110 and the positive current collecting disc 120 are riveted and connected together outside the shell of the battery, the positive pole lug of the winding core and the positive current collecting disc 120 are also welded and connected together outside the shell of the battery by laser, the shell cannot interfere the riveting process of the positive pole post 110 and the positive current collecting disc 120 nor the laser welding process of the positive pole lug of the winding core and the positive current collecting disc 120, and therefore the assembling process of the battery is simpler and more convenient, and the safety and the reliability of the battery are more easily ensured. The welding part 134 is connected with the hole wall of the through hole 211 by laser welding at the outer side of the shell, and the scheme is not only beneficial to operation, but also greatly increases the detectability of the welding position, so that the safety and the reliability of the battery are higher.
In some examples, as shown in fig. 2 to 5, the positive current collecting plate 120 includes a rivet ring 122 located at an inner ring and a positive tab connection ring 123 located at an outer ring, the rivet ring 122 is configured with a rivet hole 121, an insulation member is pressed between the stopper 112 and the rivet ring 122, and the thickness of the rivet ring 122 is greater than that of the positive tab connection ring 123. The thickness of the positive electrode lug connecting ring 123 is thinner, so that the positive electrode lug connecting ring 123 and the positive electrode lug of the winding core can be subjected to penetration laser welding; the thickness of the rivet ring 122 is relatively thick, which is beneficial to improving the structural strength of the assembly structure 100.
In some embodiments, as shown in fig. 4 and 5, the positive tab connection ring 123 is connected to one end of the riveting ring 122 far away from the insulation component, and the thickness of the positive tab connection ring 123 is set to be 0.2mm to 0.5mm, so that the positive tab connection ring 123 and the positive tab of the winding core are subjected to penetration laser welding; the thickness of the rivet ring 122 is set to 0.7mm to 1.5mm.
The thickness of the positive tab connection ring 123 may be set to 0.2mm, 0.35mm, 0.5mm, or the like; the thickness of the rivet ring 122 may be set to 0.7mm, 1.1mm, 1.5mm, or the like; the above objects of the present utility model can be achieved without departing from the spirit of the present utility model, and the present utility model shall not be repeated herein, and all the objects are within the scope of the present utility model.
In some exemplary embodiments, as shown in fig. 2, 4 and 5, the insulation assembly includes a first insulation member 131, a welding member 132 and a second insulation member 133, the welding member 132 is located between the first insulation member 131 and the second insulation member 133, the first insulation member 131 is pressed between the welding member 132 and the stopper 112, the second insulation member 133 is pressed between the welding member 132 and the rivet ring 122 of the positive current collecting plate 120, the welding portion 134 is located at the welding member 132, and the welding portion 134 is located at the radial outer side of the first insulation member 131, so that the welding portion 134 and the hole wall of the through hole 211 of the case are connected by laser welding at the outer side of the case, which is not only convenient for operation, but also greatly increases the detectability of the welding position, and thus the safety and reliability of the battery are higher. The weldment 132 may be provided as a steel ring. The first insulating member 131 and the second insulating member 133 may be plastic members.
In some examples, as shown in fig. 2, 4 and 5, the welding portion 134 is a holding step, the step surface of the holding step is located at the edge of the welding member 132 and faces away from the positive electrode current collecting plate 120, and the inner edge of the through hole 211 of the case is held on the step surface and is laser welded to the holding step at the outer side of the case.
In some embodiments, as shown in fig. 2, 4 and 5, the mounting structure 100 further comprises: and the sealing member 140 is arranged in the area surrounded by the mounting part 113, the stop part 112 and the insulating assembly, and is used for sealing the area surrounded by the mounting part 113, the stop part 112 and the insulating assembly.
In some exemplary embodiments, as shown in fig. 1-3, the mounting structure 100 further includes: the coil core 150 is provided with a positive electrode lug and a negative electrode lug, and the positive electrode current collecting disc 120 is welded with the positive electrode lug; and the negative electrode current collecting disc 160, wherein the negative electrode current collecting disc 160 is welded with the negative electrode tab.
In some embodiments, as shown in fig. 1-3, the housing includes: a housing 210, wherein a through hole 212 is formed at one end of the housing 210, a through hole 211 is formed at the end wall of the other end, and the assembly structure 100 is installed in the housing from the through hole 212; and a negative electrode cap plate 220, the edge of which is welded to the wall of the through hole 212. The positive tab is located at one end of the winding core 150 and the negative tab is located at the other end of the winding core 150, such that the negative current collecting plate 160 faces and is adjacent to the through hole 212 of the case 210. The anode current collecting plate 160 is welded to the inner peripheral surface of the casing 210 by a laser welding method, and the anode cover 220 is welded to the opening wall of the through hole 212 by a laser welding method.
In some embodiments, as shown in fig. 2 and 3, the battery further comprises: the third insulating member 300 is sleeved outside the welding member 132, and is pressed between the second insulating member 133 and the end wall of the shell; and an insulating tape 400, the insulating tape 400 wrapping the position where the winding core 150 and the positive electrode current collecting plate 120 are mated.
A vehicle (not shown in the drawings) according to an embodiment of the present utility model includes the battery according to any one of the above embodiments.
The vehicle has all the advantages of the battery provided by any of the above embodiments, and will not be described in detail herein.
In summary, according to the technical scheme provided by the utility model, the positive pole post and the positive current collecting disc are riveted and connected together outside the shell of the battery, the positive pole lug of the winding core and the positive current collecting disc are also welded and connected together outside the shell of the battery by laser, the shell does not interfere the riveting process of the positive pole post and the positive current collecting disc, and the laser welding process of the positive pole lug of the winding core and the positive current collecting disc, so that the assembly structure is applied to the battery, the assembly process of the battery is simpler and more convenient, and the safety and reliability of the battery are more easily ensured.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "one side", "the other side", "one end", "the other end", "the side", "the opposite", "four corners", "the periphery", "the" mouth "character structure", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the structures referred to have a specific direction, are configured and operated in a specific direction, and thus are not to be construed as limiting the present utility model.
In the description of embodiments of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," "assembled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, and may also be in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Although the embodiments of the present utility model are described above, the embodiments are only used for facilitating understanding of the present utility model, and are not intended to limit the present utility model. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is defined by the appended claims.
Claims (10)
1. An assembly structure of a positive electrode post and a positive electrode current collecting plate, comprising:
the positive electrode current collecting disc is provided with a riveting hole;
the positive pole is provided with a riveting column at one end, a stop part at the other end and a mounting part in the middle, and the riveting column is riveted to the riveting hole; and
the insulating assembly is sleeved on the mounting part and is pressed between the stop part and the positive current collecting disc.
2. The assembly structure of claim 1, wherein the positive current collecting plate includes a rivet ring positioned at an inner ring and a positive tab connection ring positioned at an outer ring, the rivet ring is configured to define the rivet hole, the insulating member is pressed between the stopper and the rivet ring, and a thickness of the rivet ring is greater than a thickness of the positive tab connection ring.
3. The assembly structure according to claim 2, wherein the positive tab connection ring is connected to an end of the rivet ring remote from the insulating member, and the rivet ring has a thickness of 0.7mm to 1.5mm, and the positive tab connection ring has a thickness of 0.2mm to 0.5mm.
4. A mounting structure according to any one of claims 1 to 3, wherein the insulating member includes a first insulating member, a welding member, and a second insulating member, the first insulating member being pressed between the welding member and the stopper portion, the second insulating member being pressed between the welding member and the positive current collecting plate, the welding member being provided with a welding portion, the welding portion being located radially outside the stopper portion and the first insulating member.
5. The assembly structure of claim 4, wherein the weld is a step, and wherein a stepped surface of the step is located at an edge of the weld and faces away from the positive current collector plate.
6. A mounting structure according to any one of claims 1 to 3, further comprising:
and the sealing piece is arranged in an area surrounded by the mounting part, the stop part and the insulating assembly.
7. A mounting structure according to any one of claims 1 to 3, further comprising:
the winding core is provided with a positive electrode lug and a negative electrode lug, and the positive electrode current collecting disc is connected with the positive electrode lug in a welding way; and
and the negative electrode current collecting disc is connected with the negative electrode lug in a welding way.
8. A battery, comprising:
the fitting structure of any one of claims 1 to 7; and
the end wall of its one end is equipped with wears to establish the hole, the assembly structure is located in the casing, backstop portion is followed wear to establish the hole and stretch out, insulating subassembly with wear to establish the pore wall in hole and be connected.
9. The battery of claim 8, wherein the housing comprises:
a housing having a through hole at one end thereof and the through hole at the end wall at the other end thereof, the assembly structure being fitted into the housing from the through hole; and
and the edge of the negative electrode cover plate is welded and connected with the mouth wall of the through hole.
10. A vehicle comprising a battery as claimed in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808836.9U CN219591616U (en) | 2023-04-11 | 2023-04-11 | Assembly structure of positive pole post and positive current collecting disc, battery and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320808836.9U CN219591616U (en) | 2023-04-11 | 2023-04-11 | Assembly structure of positive pole post and positive current collecting disc, battery and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219591616U true CN219591616U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320808836.9U Active CN219591616U (en) | 2023-04-11 | 2023-04-11 | Assembly structure of positive pole post and positive current collecting disc, battery and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219591616U (en) |
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2023
- 2023-04-11 CN CN202320808836.9U patent/CN219591616U/en active Active
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