CN214378742U - Connecting plate mounting structure and battery - Google Patents
Connecting plate mounting structure and battery Download PDFInfo
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- CN214378742U CN214378742U CN202120665724.3U CN202120665724U CN214378742U CN 214378742 U CN214378742 U CN 214378742U CN 202120665724 U CN202120665724 U CN 202120665724U CN 214378742 U CN214378742 U CN 214378742U
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- connecting plate
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- mounting structure
- battery case
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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
The utility model relates to a lithium cell discloses a connecting plate mounting structure, including connecting plate (1) and battery case (2) and insulation board (3) of being connected with connecting plate (1), wherein be formed with overlap joint circumference flange (11) on the outer peripheral face of connecting plate (1) one end tip, the tip of battery case (2) is formed with bulge (21), the central zone of bulge (21) is equipped with installation through-hole (22), the week edge of installation through-hole (22) is suitable for overlap joint on overlap joint circumference flange (11), so that can make connecting plate (1) and battery case (2) be connected; the central area of the connecting plate (1) is provided with a step through hole (12), and the insulating plate (3) is suitable for being installed in the step through hole (12) so as to enable the connecting plate (1) to be connected with the insulating plate (3). Additionally, the utility model also discloses a battery including the connecting plate. The utility model discloses a simple structure of connecting plate installs effectually.
Description
Technical Field
The utility model relates to a lithium cell, in particular to connecting plate mounting structure. Furthermore, the utility model discloses still relate to one kind and include connecting plate mounting structure's battery.
Background
With the continuous development of lithium battery technology, the lithium battery technology is mature day by day, so that the lithium battery as a power battery can be widely applied to the field of electric automobiles. In the lithium battery, the structural part of the lithium battery is an important component of the lithium ion power battery, and the lithium battery not only provides guarantee for the lithium battery in the aspect of safety and reliability, but also simultaneously considers the connection between a chemical system in the lithium battery and an external module. The design scheme of the structural member is particularly important because various connection relations exist in the structural member and the requirements of sealing performance and overcurrent performance are simultaneously taken into consideration, the connecting plate is used as a structure for starting and stopping the battery core and is used as an important overcurrent carrier of the battery, and the design scheme is more important; along with the development of the industry, the requirements for quick charge and discharge of the battery are higher and higher, and the requirements for the overcurrent capacity and the safety capacity of the lithium battery are also higher and higher.
In the structure of the lithium battery, the connecting plate plays a role in connecting the battery case to the insulating plate. And the connecting plate among the current lithium cell structure is more complicated in the installation, and the installation is more troublesome, and sealed effect is not good.
Therefore, there is a need for a connection plate mounting structure to solve or overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a technical problem that the aspect will be solved provides a connecting plate mounting structure, this connecting plate mounting structure's simple structure, and the installation is effectual.
Furthermore, the utility model discloses the technical problem that another aspect will solve provides a battery, the connecting plate mounting structure's of this battery simple structure, and the installation effect is good.
In order to achieve the above object, an aspect of the present invention provides a connection plate mounting structure, including a connection plate, and a battery case and an insulation board connected to the connection plate, wherein a lap joint circumferential flange is formed on an outer peripheral surface of an end portion of one end of the connection plate, a protrusion is formed on an end portion of the battery case, a central region of the protrusion is provided with a mounting through hole, and a peripheral edge of the mounting through hole is adapted to be lap joint on the lap joint circumferential flange so as to enable the connection plate to be connected to the battery case; the central region of the connecting plate is formed with a stepped through-hole, and the insulating plate is adapted to be mounted in the stepped through-hole to enable the connecting plate to be connected with the insulating plate.
Furthermore, the bulge part is formed into a hollow boss protruding out of the end part of the battery shell, the installation through hole is arranged in the central area of the hollow boss, and the diameter of the installation through hole is smaller than the inner peripheral diameter of the hollow boss, so that a lap edge is formed in the central area of the bulge part.
Further, the lap is abutted and lapped on the lapping surface of the lapping circumferential flange, the inner circumferential surface of the lap bent portion is abutted against the outer circumferential surface of the lapping circumferential flange, or a gap is formed between the inner circumferential surface of the lap bent portion and the outer circumferential surface of the lapping circumferential flange.
Further, the connecting plate is welded to the battery case.
Furthermore, a counter bore structure is formed in the central area of the insulating plate.
Furthermore, the outer peripheral surface and the inner end surface of the insulating plate are attached to the step through hole, so that the insulating plate can be connected with the connecting plate.
Further, the connection plate and the battery case are nickel-plated steel members.
Furthermore, the upper end face of the protruding portion is flush with the upper end face of the connecting plate, and the upper end face of the insulating plate protrudes out of the upper end face of the connecting plate.
Further, the step surface on the inner side of the step through hole is level with the lapping surface of the lapping circumferential flange.
In addition, the utility model discloses another aspect still provides a battery, includes according to any one of above-mentioned technical scheme the connecting plate mounting structure.
Compared with the prior art, connecting plate mounting structure have following advantage:
connecting plate mounting structure set up overlap joint circumference flange on the connecting plate, carry out seal welding with battery case's bulge overlap joint after, the connecting plate is with battery case's location and spacing effectual, sealed effectual, and the simple operation, production efficiency is high. In addition, the central area of the connecting plate is also provided with a step through hole, the peripheral surface and one end face of the insulating plate can be attached to the step through hole, so that the insulating plate can be connected with the connecting plate, the structure is simple, and the installation effect is good.
Through the technical scheme, the connecting plate mounting structure of the utility model comprises a connecting plate, a battery shell and an insulating plate, wherein the battery shell and the insulating plate are connected with the connecting plate, a lap joint circumferential flange is formed on the outer peripheral surface of one end of the connecting plate, a bulge is formed on the end of the battery shell, a mounting through hole is arranged in the central area of the bulge, and the periphery of the mounting through hole is suitable for being lapped on the lap joint circumferential flange so as to connect the connecting plate with the battery shell; the central region of the connecting plate is formed with a stepped through-hole, and the insulating plate is adapted to be mounted in the stepped through-hole to enable the connecting plate to be connected with the insulating plate. The utility model discloses a connecting plate mounting structure is through border formation overlap joint circumference flange all around at the connecting plate, the bulge that is formed into to have the installation through-hole in battery case's one end, overlap joint circumference flange can the overlap joint on the bulge to make the connecting plate be connected with battery case, and carry out welded connection through the last border to the global border of going up of overlap joint circumference flange and installation through-hole, can form sealing connection between connecting plate and battery case in the house, and excellent in connection effect, and the simple operation.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, 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 without undue limitation. In the drawings:
fig. 1 is a schematic structural view of a specific example of a connection plate mounting structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a specific example of a connecting plate according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of a battery case according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of an insulating plate according to the present invention.
Description of the reference numerals
1 web 11 overlap circumferential flange
111 faying surface 12 step through hole
Battery case with 121 inner side step surface 2
21 projection 22 mounting through hole
23 lap 231 inner peripheral surface
3 insulating plate 31 counter bore structure
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
It is to be understood that, unless expressly stated or limited otherwise, the terms "connected," "mounted," and "contacting" are intended to be open-ended, i.e., connected as either a fixed or removable connection or an integral connection; the components may be directly connected or indirectly connected through an intermediate medium, or the components may be connected through an intermediate medium or the components may be in an interactive relationship with each other. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an aspect of the present invention provides a connection board mounting structure, including a connection board 1, and a battery case 2 and an insulation board 3 connected to the connection board 1, wherein a lap joint circumferential flange 11 is formed on an outer peripheral surface of an end portion of one end of the connection board 1, a protruding portion 21 is formed on an end portion of the battery case 2, a central region of the protruding portion 21 is provided with a mounting through hole 22, and a peripheral edge of the mounting through hole 22 is adapted to lap joint on the lap joint circumferential flange 11 so as to enable the connection board 1 to be connected to the battery case 2; the central region of the connection plate 1 is formed with a stepped through-hole 12, and the insulation plate 3 is adapted to be fitted into the stepped through-hole 12 to enable the connection plate 1 to be connected with the insulation plate 3.
The utility model discloses an among the connecting plate mounting structure, connecting plate 1 is connected with battery case 2 and insulation board 3 respectively. In a preferred embodiment, the connecting plate 1 and the battery case 2 are connected by welding, the welding part is arranged at the interface between the connecting plate 1 and the upper end face of the battery case 2, and the welding seam completely covers the interface between the connecting plate 1 and the upper end face of the battery case 2. As can be seen from fig. 2 and 3, the overlapping circumferential flange 11 of the connection plate 1 is engaged with the overlapping edge 23 of the battery case 2, and the welding points are provided at the outer edge of the inner circumferential surface of the mounting through-hole 22 and the outer edge of the outer circumferential surface of the connection plate 1 away from the overlapping circumferential flange 11. It is thus conceivable that the welded portions of the connection plate 1 and the battery case 2 are corner portions, and that the weld completely covers the surfaces of the connection plate 1 and the battery case 2. Of course, a groove structure for welding can be formed at the welding connection part of the connecting plate 1 and the battery shell 2, and welding materials can be filled in the groove, so that the welding area can be increased, the welding seam can not protrude out of the surfaces of the connecting plate 1 and the battery shell 2, and the appearance of the welding seam is more attractive. After welding, the outer end faces of the connecting plate 1 and the cell shell 2 form a welding seam (not shown in the figure) protruding out of the outer end faces of the connecting plate 1 and the cell shell 2, and assembly with other parts is not affected. Of course, also can design more reasonable groove structure according to the width and the thickness of actual welding seam, satisfy welding and later stage assembly requirement, also belong to the utility model discloses a protection scope.
It should be noted that, in the above description, the term "outside" used for clearly explaining the technical solution of the present invention is meant by analogy with the meaning of the orientation of the component in normal use, for example, taking the battery case 2 as an example, the cavity position of the battery case 2 is inside, and vice versa.
Meanwhile, a step through hole 12 is formed in the central area of the connecting plate 1, for example, the position of a part in the figure is taken as an example, the diameter of the upper part of the step through hole 12 is larger than that of the lower part, the insulating plate 3 is directly arranged in the through hole with the larger diameter of the step through hole 12, the outer peripheral surface of the insulating plate 3 is attached to the inner peripheral surface of the through hole with the larger diameter of the step through hole 12, or a small amount of gaps are formed, the installation and positioning of the insulating plate 3 and the connecting plate 1 can be met, the structure is simple, the installation is convenient and fast, and the installation effect is good. The upper and lower direction of the insulating plate 3 may be limited by a limiting structure (not shown), or by other components.
Further, the protruding portion 21 is formed as a hollow boss protruding from the end of the battery case 2, the mounting through-hole 22 is provided in a central region of the hollow boss, and the diameter of the mounting through-hole 22 is smaller than the inner peripheral diameter of the hollow boss, so that a bead 23 can be formed in the central region of the protruding portion 21.
As shown in fig. 3, the battery case 2 is formed as a hollow cylindrical case, the end portion of the battery case 2 is provided with a protruding portion 21, the protruding portion 21 is also formed as a hollow boss, and the center region of the protruding portion 21 is formed with a mounting through-hole 22, and the peripheral edge of the mounting through-hole 22 of the protruding portion 21 is formed as a lap circumferential flange 11, the lap circumferential flange 11 being capable of lap-fitting with the connection plate 1. In the course of working, can adopt the stamping forming of mould, installation through-hole 22 also can directly adopt the stamping forming of mould after the stamping forming of bulge 21, simple structure, and production is convenient, and can effectively guarantee spare part precision.
Further, the lap 23 abuts against the overlapping surface 111 of the overlapping circumferential flange 11, the inner peripheral surface 231 of the bent portion of the lap 23 abuts against the outer peripheral surface of the overlapping circumferential flange 11, or a gap is formed between the inner peripheral surface 231 of the bent portion of the lap 23 and the outer peripheral surface of the overlapping circumferential flange 11.
Further, the connecting plate 1 and the battery case 2 are nickel-plated steel members, and the connecting plate 1 is welded to the battery case 2.
Connecting plate 1 and battery case 2 adopt the same material shaping to the preferred nickel plating steel shaping that adopts, the welding of being convenient for, and welding effect is good, can effectively improve product quality and production efficiency.
Further, the central area of the insulating plate 3 is formed with a counter bore structure 31, and the counter bore structure 31 can be used for being installed in cooperation with other parts. Of course, it is conceivable that the insulating plate 3 may also be formed with a cylindrical through hole, a truncated cone-shaped through hole with a taper, and the like, and may be matched with related parts, all belonging to the protection scope of the present invention.
Furthermore, the outer peripheral surface and the inner end surface of the insulating plate 3 are attached to the stepped through hole 12, so that the insulating plate 3 can be connected with the connecting plate 1.
The outer peripheral surface and one end face of the insulating plate 3 can be attached to the stepped through hole 12, the stepped through hole 12 can limit the degree of freedom of the insulating plate 3 in the front-back direction and the left-right direction, in addition, the degree of freedom of the insulating plate 3 in the up-down direction can be limited according to the parts matched with the stepped through hole, or a limiting structure (such as a limiting screw, a limiting block and the like) can be arranged to limit the degree of freedom of the insulating plate 3 in the up-down direction, and the degree of freedom is determined according to the actual installation requirement.
Here, it should be noted that the terms of orientation "front-back", "right-left", "up-down" and the like in the above description are intended to be inferred by referring to the mounting orientation of the component in fig. 1, and the up-down direction in the drawing is the up-down direction, the left-right direction is the left-right direction, and the direction perpendicular to the left-right direction on the same horizontal plane is the front-back direction, which is not necessarily the same as the actual mounting direction of the connecting plate mounting structure of the present invention.
Further, the upper end surface of the protruding portion 21 is flush with the upper end surface of the connecting plate 1, and the upper end surface of the insulating plate 3 protrudes from the upper end surface of the connecting plate 1. Further, the inner stepped surface 121 of the stepped through hole 12 is flush with the overlapping surface 111 of the overlapping circumferential flange 11.
In addition, another aspect of the present invention provides a battery, which includes the connection board according to any one of the above technical solutions.
As described above, the connection plate of the present invention includes the connection plate 1, and the battery case 2 and the insulation plate 3 connected to the connection plate 1, wherein the overlapping circumferential flange 11 is formed on the outer circumferential surface of the end portion of one end of the connection plate 1, the end portion of the battery case 2 is formed with the protruding portion 21, the central region of the protruding portion 21 is provided with the installation through hole 22, and the circumferential edge of the installation through hole 22 is suitable for overlapping the overlapping circumferential flange 11, so as to connect the connection plate 1 and the battery case 2; the central region of the connection plate 1 is formed with a stepped through-hole 12, and the insulation plate 3 is adapted to be fitted into the stepped through-hole 12 to enable the connection plate 1 to be connected with the insulation plate 3. The utility model discloses a connecting plate mounting structure forms the bulge 21 that has installation through-hole 22 through the one end at battery case 2, forms overlap joint circumference flange 11 around connecting plate 1 simultaneously, and this overlap joint circumference flange 11 can be followed battery case 2's inside outside overlap joint on bulge 21, makes connecting plate 1 and battery case 2 sealing connection through the welding, simple structure, and production efficiency is high, the simple operation. In addition, the insulating plate 3 is arranged in the step through hole 12 of the connecting plate 1, so that the installation is convenient, and the limiting effect is good.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connecting plate mounting structure characterized by comprising a connecting plate (1), and a battery case (2) and an insulating plate (3) connected to the connecting plate (1), wherein
A lap joint circumferential flange (11) is formed on the outer peripheral surface of one end of the connecting plate (1), a protruding part (21) is formed at the end of the battery shell (2), a mounting through hole (22) is formed in the central area of the protruding part (21), and the periphery of the mounting through hole (22) is suitable for being lapped on the lap joint circumferential flange (11) so as to enable the connecting plate (1) to be connected with the battery shell (2);
the central area of the connecting plate (1) is formed with a step through hole (12), and the insulating plate (3) is suitable for being installed in the step through hole (12) so as to connect the connecting plate (1) and the insulating plate (3).
2. The connection plate mounting structure according to claim 1, wherein the projection (21) is formed as a hollow boss projecting from an end of the battery case (2), the mounting through-hole (22) is provided in a central region of the hollow boss, and a diameter of the mounting through-hole (22) is smaller than an inner peripheral diameter of the hollow boss so that the central region of the projection (21) can be formed with a bead (23).
3. The web mounting structure according to claim 2, wherein the lap (23) abuts and overlaps the overlapping face (111) of the overlapping circumferential flange (11), an inner peripheral surface (231) of a bent portion of the lap (23) abuts an outer peripheral surface of the overlapping circumferential flange (11), or a gap is formed between the inner peripheral surface (231) of the bent portion of the lap (23) and the outer peripheral surface of the overlapping circumferential flange (11).
4. The connection plate mounting structure according to claim 1, wherein the connection plate (1) is welded to the battery case (2).
5. Connection plate mounting structure according to claim 1, characterized in that the central area of the insulating plate (3) is formed with a countersink structure (31).
6. Connection plate mounting structure according to claim 5, characterized in that the outer peripheral surface and the inner end face of the insulating plate (3) abut against the stepped through hole (12) to enable connection of the insulating plate (3) with the connection plate (1).
7. Connection plate mounting structure according to any one of claims 1 to 6, characterized in that the connection plate (1) and the battery case (2) are nickel-plated steel pieces.
8. Connection plate mounting structure according to any one of claims 1 to 6, characterized in that the upper end face of the projection (21) is flush with the upper end face of the connection plate (1), and the upper end face of the insulating plate (3) projects from the upper end face of the connection plate (1).
9. The web mounting structure according to any one of claims 1 to 6, wherein an inside step face (121) of the step through hole (12) is flush with a lapping face (111) of the lapping peripheral flange (11).
10. A battery comprising the connection plate mounting structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120665724.3U CN214378742U (en) | 2021-03-31 | 2021-03-31 | Connecting plate mounting structure and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120665724.3U CN214378742U (en) | 2021-03-31 | 2021-03-31 | Connecting plate mounting structure and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214378742U true CN214378742U (en) | 2021-10-08 |
Family
ID=77973972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120665724.3U Active CN214378742U (en) | 2021-03-31 | 2021-03-31 | Connecting plate mounting structure and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214378742U (en) |
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2021
- 2021-03-31 CN CN202120665724.3U patent/CN214378742U/en active Active
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