CN219739217U - Square winding battery - Google Patents
Square winding battery Download PDFInfo
- Publication number
- CN219739217U CN219739217U CN202320399298.2U CN202320399298U CN219739217U CN 219739217 U CN219739217 U CN 219739217U CN 202320399298 U CN202320399298 U CN 202320399298U CN 219739217 U CN219739217 U CN 219739217U
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- China
- Prior art keywords
- filling
- sliding groove
- shell
- receiving
- bar
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- 238000004804 winding Methods 0.000 title claims abstract description 55
- 238000012856 packing Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims 6
- 230000000712 assembly Effects 0.000 abstract description 5
- 238000000429 assembly Methods 0.000 abstract description 5
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a square winding battery, which comprises a shell and a plurality of winding battery cores arranged in the shell, wherein the shell comprises a shell, a cover plate detachably connected with the shell, two filling assemblies and two filling blocks, the two filling assemblies and the two filling blocks are arranged in the shell, the two filling assemblies are respectively used for filling gaps between arc edges on two sides of the winding battery cores and the side wall of the shell, and the two filling blocks are respectively used for filling gaps between straight edges on two sides of the winding battery cores and the side wall of the shell. The utility model is beneficial to solving the problem that the square winding battery has arc-shaped battery core, after the winding battery core is wrapped by the battery shell, a gap is reserved between the winding battery core and the shell, and more electrolyte is required to be filled in the battery shell, so that the energy density is lower.
Description
Technical Field
The utility model relates to the technical field of wound batteries, in particular to a square wound battery.
Background
The wound battery, which is composed of the battery cells assembled and formed in a winding manner, may be classified into a square wound battery, a cylindrical wound battery, etc., according to the external appearance of the battery.
At present, a square winding battery is characterized in that the shape of a battery core is arc, after the winding battery core is wrapped by a battery shell, a gap is reserved between the winding battery core and a shell, and more electrolyte is required to be filled in the battery shell, so that the energy density is low.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a square winding battery capable of filling gaps between a battery shell and an arc edge of a winding battery core.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a square winding battery, includes the shell and sets up a plurality of winding electric core in the shell, the shell include the casing, with the apron of casing detachable connection and set up two filling components and two packing blocks in the casing, two filling components are used for filling a plurality of respectively winding electric core's both sides arc limit with the space between the lateral wall of casing, two the packing block is used for filling a plurality of respectively winding electric core's both sides straight strip limit with the space between the lateral wall of casing.
Further, the filling assembly comprises a plurality of filling strips which are detachably connected with each other, and the contact surface of the filling strips and the winding battery core is concave.
Further, the filling assembly further comprises two carrying bars which can be detachably connected with the filling bars on two sides respectively, and the two carrying bars can be detachably connected with the two filling blocks respectively.
Further, a first connecting strip is arranged on one side connecting surface of the filling strip along the vertical direction, a first sliding groove matched with the first connecting strip is formed on the other side connecting surface of the filling strip, and the first connecting strip can be in sliding fit with the first sliding groove and can be clamped in the first sliding groove.
Further, the receiving strip comprises a receiving block, a second connecting strip matched with the first sliding groove is arranged on one of the two receiving blocks, a second sliding groove matched with the first connecting strip is arranged on the other receiving block, the second connecting strip can be in sliding fit with the first sliding groove and can be arranged in the first sliding groove in a clamping mode, and the first connecting strip can also be in sliding fit with the second sliding groove and can be arranged in the second sliding groove in a clamping mode.
Further, the receiving strip further comprises a clamping strip vertically arranged on the receiving block, a third sliding groove matched with the clamping strip and a fourth sliding groove matched with the receiving block and communicated with the third sliding groove are formed in the filling block, the clamping strip can be in sliding fit with the third sliding groove and can limit the filling block to move in the direction of the arc-shaped edge of the winding electric core, and the receiving block can be in sliding fit with the fourth sliding groove and can limit the filling block to move in the direction of the straight edge of the winding electric core.
Further, the clamping strip is located at one side of the receiving block away from the filling strip, the clamping strip can reciprocate on the receiving block along the direction of the arc-shaped edge of the winding battery core, and a spring is further connected between the clamping strip and the receiving block.
Further, a circle of first flange is arranged at the bottom of the cover plate, a circle of second flange is arranged at the top of the shell, and a slot which can be in plug-in fit with the second flange is further formed in the first flange.
The beneficial effects of the utility model are as follows:
the square winding battery is provided with the shell, the cover plate, the two filling components and the two filling blocks, the filling components can fill the gap between the arc-shaped edge of the winding battery core and the side wall of the shell, the filling blocks can fill the gap between the straight edge of the winding battery core and the side wall of the shell, the gap between the straight edge of the winding battery core and the side wall of the shell is prevented from being formed due to the existence of the filling components, and the filling components and the filling blocks fill the gap between the winding battery core and the shell in an omnibearing manner, so that electrolyte filled in the battery shell is reduced, and the energy density is improved compared with that of the original structure.
Drawings
FIG. 1 is a side view, partially in section, of a square wound battery structure of the present utility model;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a top view of a portion of the square wound battery of the present utility model;
fig. 4 is an enlarged view of a portion B of fig. 3;
FIG. 5 is a schematic view of the structure of the packing block and the receiving bar of the present utility model;
fig. 6 is a side cross-sectional view of the structure of the carrier strip of the present utility model.
The components in the drawings are marked as follows: 1. winding the battery cell; 2. a housing; 3. a cover plate; 4. a filling assembly; 401. filling strips; 4011. a first chute; 402. a receiving bar; 4021. a receiving block; 4022. a second connecting bar; 403. a first connecting bar; 4023. a second chute; 4024. clamping strips; 4025. a spring; 5. filling blocks; 501. a third chute; 502. a fourth chute; 6. a first flange; 601. a slot; 7. and a second flange.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
See fig. 1 to 5.
The square winding battery comprises a shell and a plurality of winding battery cells 1 arranged in the shell, wherein the shell comprises a shell 2, a cover plate 3 detachably connected with the shell 2, two filling assemblies 4 and two filling blocks 5 which are arranged in the shell 2, the two filling assemblies 4 are respectively used for filling gaps between arc-shaped edges on two sides of the winding battery cells 1 and the side walls of the shell 2, and the two filling blocks 5 are respectively used for filling gaps between straight edges on two sides of the winding battery cells 1 and the side walls of the shell 2.
The square winding battery is provided with the shell 2, the cover plate 3, the two filling components 4 and the two filling blocks 5, the filling components 4 can fill the gap between the arc-shaped edge of the winding battery core 1 and the side wall of the shell 2, the filling blocks 5 can fill the gap between the straight edge of the winding battery core 1 and the side wall of the shell 2, the gap between the straight edge of the winding battery core 1 and the side wall of the shell 2 due to the existence of the filling components 4 is avoided, and the filling components 4 and the filling blocks 5 fill the gap between the winding battery core 1 and the shell 2 in all directions, so that electrolyte filled in the battery shell 2 is reduced, and the energy density is improved compared with that of the original structure.
In an embodiment, the filling assembly 4 includes a plurality of filling strips 401 detachably connected to each other, and the contact surface between the filling strips 401 and the winding cell 1 is concave. By means of the mutually detachable connection structure of the filling strips 401, the number of the filling strips 401 can be adjusted, and the filling of square winding batteries with different numbers of winding cells 1 can be adapted.
In an embodiment, the filling assembly 4 further includes two receiving bars 402 detachably connected to the filling bars 401 on both sides, and the two receiving bars 402 are detachably connected to the two filling blocks 5, respectively. By arranging the receiving strip 402, the filling block 5 can be connected with the filling assembly 4, so that the filling block 5 and the filling assembly 4 can be fixed in position.
In an embodiment, a first connecting bar 403 is disposed on a connecting surface of one side of the filling bar 401 along a vertical direction, a first sliding groove 4011 matched with the first connecting bar 403 is disposed on a connecting surface of the other side, and the first connecting bar 403 can be slidably matched with the first sliding groove 4011 and can be clamped in the first sliding groove 4011. By means of the design, detachable connection is achieved through sliding clamping cooperation of the first connecting strip 403 and the first sliding chute 4011, the structure is simple, operation is convenient, and in the embodiment, the cross section of the first connecting strip 403 is T-shaped.
In an embodiment, the receiving bar 402 includes receiving blocks 4021, one receiving block 4021 of the two receiving blocks 4021 is provided with a second connecting bar 4022 matched with the first sliding groove 4011, the other receiving block 4021 is provided with a second sliding groove 4023 matched with the first connecting bar 403, the second connecting bar 4022 can be slidably matched with the first sliding groove 4011 and can be arranged in the first sliding groove 4011 in a clamping manner, and the first connecting bar 403 can be slidably matched with the second sliding groove 4023 and can be arranged in the second sliding groove 4023 in a clamping manner. By means of the design, detachable connection is achieved through the sliding clamping fit of the second connecting bar 4022 and the first sliding chute 4011 and the sliding clamping fit of the first connecting bar 403 and the second sliding chute 4023, the structure is simple, operation is convenient, and in the embodiment, the cross section of the second connecting bar 4022 is T-shaped.
In an embodiment, the receiving bar 402 further includes a clamping bar 4024 vertically disposed on the receiving block 4021, the filling block 5 is provided with a third chute 501 matched with the clamping bar 4024 and a fourth chute 502 matched with the receiving block 4021 and communicated with the third chute 501, the clamping bar 4024 can be slidably matched with the third chute 501 and can limit the movement of the filling block 5 in the direction of the arc edge of the winding cell 1, and the receiving block 4021 can be slidably matched with the fourth chute 502 and can limit the movement of the filling block 5 in the direction of the straight edge of the winding cell 1. By the design, the filling block 5 is immovable in the direction of the straight edge of the winding cell 1 and the direction of the arc edge of the winding cell 1, and the filling assembly 4 is restrained from immovable in the direction of the arc edge of the winding cell 1, so that the filling block 5 and the filling assembly 4 are fixed in position.
In an embodiment, the clip strip 4024 is located at a side of the receiving block 4021 away from the filling strip 401, the clip strip 4024 can reciprocate on the receiving block 4021 along a direction of an arc edge of the winding cell 1, and a spring 4025 is further connected between the clip strip 4024 and the receiving block 4021. By adding the spring 4025, the connection between the receiving bar 402 and the filling block 5 is tight, so that the filling block 5 and the filling assembly 4 are attached to the surface of the winding cell 1 and cannot slide relative to the winding cell 1.
In an embodiment, a circle of first flanges 6 is disposed at the bottom of the cover plate 3, a circle of second flanges 7 is disposed at the top of the housing 2, and slots 601 capable of being in plug-in fit with the second flanges 7 are further formed in the first flanges 6. Through the design, the second flange 7 is inserted into the slot 601, so that the cover plate 3 and the shell 2 are pre-fixed, and the cover plate 3 and the shell 2 are convenient to weld subsequently.
In the installation process of the utility model, the filling strips 401 are connected according to the number of the winding cells 1, the supporting strips 402 are connected on the filling strips 401 positioned at two sides, then the concave sides of the filling strips 401 are attached to the winding cells 1, then the filling blocks 5 are connected with the supporting strips 402, and then the filling blocks are placed in the shell 2 and connected with the cover plate 3.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present utility model, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
Claims (8)
1. The utility model provides a square winding battery, includes the shell and sets up a plurality of winding electric core (1) in the shell, its characterized in that, the shell include casing (2), with apron (3) and the setting that casing (2) can dismantle the connection are in two packing subassembly (4) and two packing piece (5) in casing (2), two packing subassembly (4) are used for filling a plurality of respectively winding electric core (1) both sides arc limit with the space between the lateral wall of casing (2), two packing piece (5) are used for filling a plurality of respectively winding electric core (1) both sides straight bar limit with the space between the lateral wall of casing (2).
2. Square wound battery according to claim 1, characterized in that the filler assembly (4) comprises a plurality of filler strips (401) detachably connected to each other, and that the contact surfaces of the filler strips (401) with the wound cells (1) are concave.
3. Square wound battery according to claim 2, characterized in that the filler assembly (4) further comprises two receiving strips (402) detachably connected to the filler strips (401) on both sides, respectively, and that the two receiving strips (402) are further detachably connected to the two filler blocks (5), respectively.
4. The square wound battery according to claim 3, wherein a first connecting bar (403) is arranged on one side connecting surface of the filling bar (401) along the vertical direction, a first sliding groove (4011) matched with the first connecting bar (403) is arranged on the other side connecting surface, and the first connecting bar (403) can be in sliding fit with the first sliding groove (4011) and can be clamped in the first sliding groove (4011).
5. The square wound battery according to claim 4, wherein the receiving bar (402) comprises receiving blocks (4021), one receiving block (4021) of the two receiving blocks (4021) is provided with a second connecting bar (4022) matched with the first sliding groove (4011), the other receiving block (4021) is provided with a second sliding groove (4023) matched with the first connecting bar (403), the second connecting bar (4022) can be in sliding fit with the first sliding groove (4011) and can be clamped in the first sliding groove (4011), and the first connecting bar (403) can also be in sliding fit with the second sliding groove (4023) and can be clamped in the second sliding groove (4023).
6. The square wound battery according to claim 5, wherein the receiving bar (402) further comprises a clamping bar (4024) vertically arranged on the receiving block (4021), the filling block (5) is provided with a third sliding groove (501) matched with the clamping bar (4024) and a fourth sliding groove (502) matched with the receiving block (4021) and communicated with the third sliding groove (501), the clamping bar (4024) can be in sliding fit with the third sliding groove (501) and can limit the movement of the filling block (5) in the direction of the arc-shaped edge of the wound battery core (1), and the receiving block (4021) can be in sliding fit with the fourth sliding groove (502) and can limit the movement of the filling block (5) in the direction of the straight edge of the wound battery core (1).
7. The square wound battery according to claim 6, wherein the clip strip (4024) is located at a side of the receiving block (4021) away from the filling strip (401), the clip strip (4024) can reciprocate on the receiving block (4021) along a direction of an arc edge of the wound battery core (1), and a spring (4025) is further connected between the clip strip (4024) and the receiving block (4021).
8. Square wound battery according to claim 1, characterized in that the bottom of the cover plate (3) is provided with a ring of first flanges (6), the top of the housing (2) is provided with a ring of second flanges (7), and the first flanges (6) are provided with slots (601) which can be in plug-in fit with the second flanges (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320399298.2U CN219739217U (en) | 2023-03-06 | 2023-03-06 | Square winding battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320399298.2U CN219739217U (en) | 2023-03-06 | 2023-03-06 | Square winding battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739217U true CN219739217U (en) | 2023-09-22 |
Family
ID=88055223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320399298.2U Active CN219739217U (en) | 2023-03-06 | 2023-03-06 | Square winding battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739217U (en) |
-
2023
- 2023-03-06 CN CN202320399298.2U patent/CN219739217U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |