CN218385521U - Battery cell protection device with buffering function - Google Patents
Battery cell protection device with buffering function Download PDFInfo
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- CN218385521U CN218385521U CN202221879947.0U CN202221879947U CN218385521U CN 218385521 U CN218385521 U CN 218385521U CN 202221879947 U CN202221879947 U CN 202221879947U CN 218385521 U CN218385521 U CN 218385521U
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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 discloses an electric core protection device with buffer function, which comprises a mica plate and a buffer layer, wherein the mica plate and the buffer layer are alternately superposed and fixedly connected; the thickness of the mica plate is 0.4-1.2mm; the thickness of the buffer layer is 1mm-5mm; the buffer layer is a foam layer or a silica gel layer; the utility model can realize the heat insulation of the battery cell by arranging the mica plate with the thickness of 0.4-1.2mm; the mica plate has the thickness of 0.4-1.2mm and has stronger hardness and mechanical strength, so the mica plate is not easy to damage in the mechanical collision with the expanded high-temperature battery core; by arranging the buffer layer with the thickness of 1mm-5mm, the buffer layer with the compression performance can be utilized to vacate space for the expanded battery core, so that the expanded battery core is prevented from being extruded, and the service life of the battery core is prolonged.
Description
Technical Field
The utility model relates to an energy storage technology field specifically is an electricity core protection device with buffer function.
Background
The electric cores are arranged together to form an electric core bundle for supplying energy together. In a cell bundle, a thermal insulation device is generally disposed between adjacent cells. In the prior art, the insulation device is a thin plate of a certain thickness made of an insulating material. And the heat insulation device and the adjacent cells are arranged together in a manner of being next to each other in the cell bundle. The volume expansion of the battery cell is accompanied in the process of repeated charge and discharge or sudden temperature rise due to fault. The expanded cell can be damaged by extrusion, and then the service life of the cell is shortened. In addition, after the battery cell is expanded, friction and collision exist between the battery cell and the heat insulation device, so the heat insulation device needs to have strong mechanical strength, and damage caused by the friction and the collision between the battery cell and the heat insulation device is avoided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electricity core protection device with buffer function to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a battery cell protection device with a buffer function comprises mica plates and buffer layers, wherein the mica plates and the buffer layers are alternately superposed and fixedly connected; the thickness of the mica plate is 0.4-1.2mm; the thickness of the buffer layer is 1mm-5mm; the buffer layer is a foam layer or a silica gel layer.
As an optimized technical scheme of the utility model, above-mentioned protection device includes one deck mica plate and one deck buffer layer.
As an optimal technical scheme of the utility model, above-mentioned protection device includes one deck mica plate and a pair of buffer layer, the mica plate clamp is located between a pair of buffer layer.
As an optimal technical scheme of the utility model, above-mentioned protection device includes a pair of mica plate and one deck buffer layer, the buffer layer clamp is located between a pair of mica plate.
As a preferred technical solution of the present invention, when the buffer layer is a foam layer, the foam layer is distributed on the mica plate in the form of a whole foam plate; when the buffer layer is a silica gel layer, the silica gel layer is distributed on the mica plate in the form of a whole silica gel plate.
As a preferred technical solution of the present invention, when the buffer layer is a foam layer, the foam layer is distributed on the mica plate in a square foam strip form; when the buffer layer is a silica gel layer, the silica gel layer is distributed on the mica plate in the form of square foam cotton slivers
As a preferred technical solution of the present invention, when the buffer layer is a foam layer, the foam layer is distributed on the mica plate in the form of a plurality of strip-shaped foam slivers; when the buffer layer is the silica gel layer, the silica gel layer distributes on the mica plate in the form of a plurality of bar silica gel strips.
As a preferred technical solution of the present invention, when the buffer layer is a foam layer, the foam layer is distributed on the mica plate in the form of a plurality of foam blocks; when the buffer layer is a silica gel layer, the silica gel layer is distributed on the mica plate in the form of a plurality of silica gel blocks.
As an optimal technical scheme of the utility model, above-mentioned mica plate and buffer layer pass through gum fixed connection.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model can realize the heat insulation of the battery cell by arranging the mica plate with the thickness of 0.4-1.2mm; the mica plate has the thickness of 0.4-1.2mm and has stronger hardness and mechanical strength, so the mica plate is not easy to damage in the mechanical collision with the expanded high-temperature battery core; by arranging the buffer layer with the thickness of 1mm-5mm, the buffer layer can be utilized to have the compression performance, space is reserved for the expanded battery core, the expanded battery core is prevented from being extruded, and the service life of the battery core is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a cell protection device with a buffer function when the protection device comprises a buffer layer and a mica plate;
fig. 2 is a schematic structural diagram of a cell protection device with a buffer function when the protection device comprises a buffer layer and a pair of mica plates;
fig. 3 is a schematic structural diagram of a cell protection device with a buffer function when the protection device comprises two buffer layers and a mica plate;
fig. 4 is a diagram illustrating a whole foam board or a silica gel board of a cell protection device with a buffering function covering a mica board at a certain distance from the edge of the mica board;
fig. 5 shows a square-shaped foam strip or a square-shaped silica gel strip in the battery cell protection device with the buffer function distributed on a mica plate;
fig. 6 shows that a plurality of square-shaped foam slivers or a plurality of square-shaped silica gel strips in the battery cell protection device with the buffer function are distributed on a mica plate;
fig. 7 is a schematic structural diagram of a cell protection device with a buffer function, in which strip-shaped silica gel strips or strip-shaped foam slivers are parallel to each other and the distances between adjacent strip-shaped silica gel strips or strip-shaped foam slivers are equal;
fig. 8 is a schematic structural diagram of strip-shaped silica gel strips or strip-shaped foam slivers in a battery cell protection device with a buffer function, which are parallel to each other, and the distance between adjacent strip-shaped silica gel strips or strip-shaped foam slivers is random;
fig. 9 is a schematic structural diagram of a cell protection device with a buffer function, in which when a buffer layer includes a plurality of strip-shaped silica gel strips or strip-shaped foam strips, the strip-shaped silica gel strips or the strip-shaped foam strips are not completely parallel to each other;
fig. 10 is a schematic structural diagram of a cell protection device with a buffer function, in which adjacent silica gel blocks or foam blocks are arranged at equal intervals along the X-axis direction and are arranged at equal intervals along the Y-axis direction on one side of a mica plate;
fig. 11 is a schematic structural diagram of a cell protection device with a buffer function, in which the distance between adjacent silica gel blocks or foam blocks in the X-axis direction is random, or the distance between adjacent silica gel blocks or foam blocks in the Y-axis direction is randomly distributed on one side surface of a mica plate;
fig. 12 is a schematic structural diagram of a cell protection device with a buffer function, in which silicone blocks or foam blocks are not arranged along the X-axis direction or the Y-axis direction, but are randomly arranged.
In the figure: 1. mica plates; 2. and a buffer layer.
Detailed Description
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict, and the present application will be described in detail with reference to fig. 1 to 12 in conjunction with the embodiments.
Example 1
As shown in fig. 1-3, a battery cell protection device with a buffer function comprises a mica plate 1 and a buffer layer 2, wherein the mica plate 1 and the buffer layer 2 are alternately stacked and the mica plate 1 and the buffer layer 2 are fixedly connected;
the protection device can be, but is not limited to, the following three structures:
as shown in fig. 1, the protection device comprises a mica plate 1 and a buffer layer 2, wherein the buffer layer 2 is fixedly connected to the mica plate 1; the buffer layer 2 is fixedly connected with the battery cell on one side, and the mica plate 1 is fixedly connected with the battery cell on one side;
as shown in fig. 2, the protection device includes a pair of mica plates 1 and a buffer layer 2, the buffer layer 2 is sandwiched between the pair of mica plates 1, the mica plates 1 are fixedly connected to the buffer layer 2, and the pair of mica plates 1 exposed outside are respectively and fixedly connected to adjacent electric cores.
As shown in fig. 3, the protection device comprises a layer of mica plate 1 and a pair of buffer layers 2, wherein the mica plate 1 is clamped between the buffer layers 2; the pair of buffer layers 2 are respectively fixedly connected with the adjacent electric cores.
In other embodiments, the protection device can also be in other structures formed by alternately overlapping the mica plates 1 and the buffer layers 2; when the buffer layer 2 is a foam layer, the foam layer is fixedly connected with the mica plate 1 in the form of a whole foam plate; a one-piece foam board may be placed over the mica board 1 in such a way that it completely covers the mica board 1, as shown in fig. 1; or can be covered on the mica plate 1 in a manner of having a certain distance from the edge of the mica plate 1, as shown in fig. 4;
when the buffer layer 2 is a silica gel layer, the silica gel layer is fixedly connected with the mica plate 1 in the form of a whole silica gel plate; a one-piece silicone plate may be covered on the mica plate 1 in such a manner as to completely cover the mica plate 1, as shown in fig. 1; or can be covered on the mica plate 1 in a manner of having a certain distance from the edge of the mica plate 1, as shown in fig. 4;
the thickness of the mica board 1 may be the following values: 0.4mm, 0.45mm, 0.55mm, 0.65mm, 0.75mm, 0.85mm, 0.95mm, 1.05mm, 1.15mm, or 1.20mm; the thickness of the mica plate 1 is not limited to the above value, and may be any one of 0.4 to 1.2mm;
the thickness of the buffer layer 2 is 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm; the thickness of the buffer layer 2 is not limited to the above value, and may be any value of 1mm to 5 mm.
In the embodiment, the mica plate 1 with the thickness of 0.4-1.2mm is arranged, so that the electric core can be insulated from heat; the mica plate 1 has the thickness of 0.4-1.2mm and has stronger hardness and mechanical strength, so the mica plate is not easy to damage in the mechanical collision with the expanded high-temperature electric core; by arranging the buffer layer 2 with the thickness of 1mm-5mm, the buffer layer 2 with the compression performance can be utilized to make room for the expanded battery core, so that the expanded battery core is prevented from being extruded, and the service life of the battery core is prolonged.
Example 2
Based on embodiment 1, the mica plate 1 and the buffer layer 2 are fixedly connected through the back glue.
Through injecing mica plate 1 and buffer layer 2 through gum fixed connection, need not punch at mica plate 1 and buffer layer 2, can enough ensure that mica plate 1 and buffer layer 2 are at fixed connection, also can not cause mechanical damage to mica plate 1 and buffer layer 2.
Example 3
As shown in fig. 5 and 6, based on embodiment 1 or embodiment 2, when the buffer layer 2 is a foam layer, the foam layer is distributed on the mica plate 1 in a square foam strip form; as shown in fig. 5, the foam layer may be distributed on the mica plate 1 in a square shape, or as shown in fig. 6, the foam layer may be distributed on the mica plate 1 in a plurality of square shape;
when the buffer layer 2 is a silica gel layer, the silica gel layer is distributed on the mica plate 1 in the form of square silica gel strips. As shown in fig. 5, the silica gel layer may be distributed on the mica plate 1 as a square silica gel strip; as shown in fig. 6, the silica gel layer may also be distributed on the mica plate 1 in a plurality of square-shaped silica gel strips.
In this embodiment, when the foam layer is distributed on the mica plate 1 in the shape of one or more square-shaped foams, the use amount of the foam material can be saved while the buffering effect is realized, which is beneficial to reducing the production cost. Similarly, when the silica gel layer is distributed on the mica plate 1 by one or more square foam slivers, the use amount of foam materials can be saved while the buffer effect is realized, and the reduction of the production cost is facilitated.
Example 4
As shown in fig. 7-9, based on embodiment 1 or embodiment 2, when the foam layer is distributed on the mica plate 1 in the form of a plurality of strip-shaped foam slivers; the arrangement modes of the strip-shaped foam slivers comprise the following two modes:
A. the strip-shaped tampons are parallel to each other and the distance between the adjacent strip-shaped tampons is equal, as shown in fig. 7;
B. the strip-shaped tampons are parallel to each other and the distance between the adjacent strip-shaped tampons is random, as shown in fig. 8;
C. the plurality of strip-shaped tampons are not completely parallel to each other, as shown in fig. 9;
when the protection device comprises a mica plate 1 and a foam layer, the foam layer is fixedly connected to the mica plate 1; the strip-shaped foam slivers in the foam layer can be arranged on the mica plate 1 in any one of the manners of A, B or C;
when the protection device comprises a pair of mica plates 1 and a layer of foam layer, the foam layer is clamped between the pair of mica plates 1, and strip-shaped foam slivers in the foam layer can be arranged between the pair of mica plates 1 in any one mode of A, B or C on the upper surface;
when the protection device comprises a mica plate 1 and a pair of foam layers, the mica plate 1 is clamped between the pair of foam layers; the strip-shaped tampons in the first layer of foam cotton layer can be arranged between one pair of mica plates 1 in any one of the manners of A, B or C above, and the strip-shaped tampons in the second layer of buffer layer 2 can be arranged between the other pair of mica plates 1 in any one of the manners of A, B or C above; the arrangement of the strip-shaped tampons in the first buffer layer 2 and the second buffer layer 2 may be the same or different.
This embodiment distributes on mica plate 1 with the form of a plurality of bar bubble silver through injecing buffer layer 2, when realizing the buffering efficiency and saving the use amount of the cotton material of bubble, can also utilize the clearance between the bar bubble silver to realize ventilating, improves the radiating effect.
Example 5
As shown in fig. 7-9, based on embodiment 1 or embodiment 2, when the buffer layer 2 is a silica gel layer, the silica gel layer is distributed on the mica plate 1 in the form of a plurality of strip silica gel strips, and the arrangement of the plurality of strip silica gel strips includes the following two types:
A. the plurality of strip-shaped silica gel strips are parallel to each other, and the distances between the adjacent strip-shaped silica gel strips are equal, as shown in fig. 7;
B. the plurality of strip-shaped silica gel strips are mutually parallel, and the distance between every two adjacent strip-shaped silica gel strips is random, as shown in figure 8;
C. the plurality of strip-shaped silica gel strips are not completely parallel to each other, as shown in fig. 9;
when the protection device comprises a layer of mica plates 1 and a layer of silica gel, the strip-shaped foam silica gel strips in the silica gel layer can be arranged between a pair of mica plates 1 in any one of the manners of A, B or C;
when protection device includes a pair of mica plate 1 and one deck silica gel layer, when one deck silica gel layer clamp was located between a pair of mica plate 1: the strip-shaped silica gel strip in the silica gel layer can be fixedly connected to the mica plate 1 in any one of the manners of A, B or C;
when the protection device comprises a layer of mica plates 1 and a pair of silica gel layers, the mica plates 1 are clamped between the pair of silica gel layers, the strip silica gel strips in the first silica gel layer can be arranged between the pair of mica plates 1 in any one of the modes of A, B or C on the upper surface, and the strip silica gel strips in the second silica gel layer can be arranged between the other pair of mica plates 1 in any one of the modes of A, B or C on the upper surface; the arrangement modes of the strip-shaped silica gel strips in the first silica gel layer and the second silica gel layer can be the same or different.
This embodiment distributes on mica plate 1 with the form of a plurality of bar silica gel strips through injecing buffer layer 2, when realizing buffering efficiency and saving silica gel material's use amount, can also utilize the clearance between the bar silica gel strip to realize ventilating, improves the radiating effect.
Example 6
As shown in fig. 10-12, when the buffer layer 2 is a foam layer, the foam layer is distributed on the mica plate 1 in the form of a plurality of foam blocks, and the foam blocks are arranged in the following three ways;
D. as shown in fig. 10, the adjacent foam blocks are equally spaced in the X-axis direction and equally spaced in the Y-axis direction on one side of the mica plate 1;
E. as shown in fig. 11, the distance between adjacent foam blocks along the X-axis direction is randomly distributed on one side surface of the mica plate 1 or the distance between adjacent foam blocks along the Y-axis direction is randomly distributed on one side surface of the mica plate 1;
F. as shown in fig. 12, the foam blocks are not arranged along the X-axis direction or the Y-axis direction, but are arranged randomly;
when the protection device comprises a layer of mica plate 1 and a layer of foam, foam blocks in the foam layer can be arranged on one side surface of the mica plate 1 in any one of the manners of D, E or F;
when the protection device comprises a pair of mica plates 1 and a layer of foam layer, the foam layer is clamped between the pair of mica plates 1, and foam blocks in the foam layer are arranged between the pair of mica plates 1 in a mode of D, E or F;
when the protection device comprises a mica plate 1 and a pair of foam layers, the mica plate 1 is clamped between the pair of foam layers;
the foam blocks in the first layer of foam layer are fixedly connected to one side surface of the mica plate 1 in an arrangement mode of D, E or F, and the foam blocks in the second layer of foam layer are fixedly connected to the other side surface of the mica plate 1 in an arrangement mode of D, E or F;
the arrangement modes of the foam blocks in the first foam layer and the second foam layer can be the same or different.
This embodiment distributes on mica plate 1 with the form of a plurality of cotton pieces of bubble through injecing the cotton layer of bubble, can realize the buffering efficiency and save the use amount of the cotton material of bubble in, can also utilize the clearance between the cotton piece of bubble to realize ventilating, improves the radiating effect.
Example 7
As shown in fig. 10-12, when the buffer layer 2 is a silica gel layer, the silica gel layer is distributed on the mica plate 1 in the form of a plurality of silica gel blocks;
D. as shown in fig. 10, the adjacent silica gel blocks are equally spaced along the X-axis direction and equally spaced along the Y-axis direction on one side of the mica plate 1;
E. as shown in fig. 11, the pitch between adjacent silica gel blocks along the X-axis direction is randomly distributed on one side surface of the mica plate 1 or the pitch between adjacent silica gel blocks along the Y-axis direction is randomly distributed on one side surface of the mica plate 1;
F. as shown in fig. 12, the silica gel blocks are not arranged along the X-axis direction or the Y-axis direction, but are arranged randomly;
when the protection device comprises a layer of mica plate 1 and a layer of silica gel layer, the silica gel blocks in the silica gel layer can be fixedly connected on the mica plate 1 in any arrangement mode of D, E or F;
when protection device includes a pair of mica plate 1 and one deck silica gel layer, one deck silica gel layer clamp is located between a pair of mica plate 1: the silica gel blocks in the silica gel layer are arranged between the pair of mica plates 1 in a mode of D, E or F;
when protection device includes one deck mica plate 1 and a pair of silica gel layer, mica plate 1 presss from both sides and locates between a pair of silica gel layer: the silica gel blocks in the first silica gel layer are arranged between one pair of mica plates 1 in a mode of D, E or F, and the silica gel blocks in the second silica gel layer are arranged between the other pair of mica plates 1 in a mode of D, E or F; the arrangement modes of the silica gel blocks in the first silica gel layer and the second silica gel layer can be the same or different.
This embodiment distributes on mica plate 1 with the form of a plurality of silica gel blocks through injecing the silica gel layer, can realize buffering efficiency and save silica gel material's use amount while, can also utilize the clearance between the silica gel block to realize ventilating, improves the radiating effect.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (9)
1. The battery cell protection device with the buffer function is characterized by comprising mica plates (1) and buffer layers (2), wherein the mica plates (1) and the buffer layers (2) are alternately superposed and the mica plates (1) and the buffer layers (2) are fixedly connected; the thickness of the mica plate (1) is 0.4-1.2mm; the thickness of the buffer layer (2) is 1mm-5mm; the buffer layer (2) is a foam layer or a silica gel layer.
2. The cell protection device with the buffer function according to claim 1, wherein the protection device comprises a mica plate (1) and a buffer layer (2).
3. The cell protection device with the buffer function according to claim 1, wherein the protection device comprises a mica plate (1) and a pair of buffer layers (2), and the mica plate (1) is sandwiched between the pair of buffer layers (2).
4. The cell protection device with the buffering function according to claim 1, wherein the protection device comprises a pair of mica plates (1) and a buffer layer (2), and the buffer layer (2) is sandwiched between the pair of mica plates (1).
5. The battery cell protection device with the buffer function according to claim 1, 2, 3 or 4, wherein when the buffer layer (2) is a foam layer, the foam layer is distributed on the mica plate (1) in a form of a whole foam plate; when the buffer layer (2) is a silica gel layer, the silica gel layer is distributed on the mica plate (1) in the form of a whole silica gel plate.
6. The battery cell protection device with the buffer function according to claim 1, 2, 3 or 4, wherein when the buffer layer (2) is a foam layer, the foam layer is distributed on the mica plate (1) in a square foam form; when the buffer layer (2) is a silica gel layer, the silica gel layer is distributed on the mica plate (1) in a square foam strip mode.
7. The battery cell protection device with the buffer function according to claim 1, 2, 3 or 4, wherein when the buffer layer (2) is a foam layer, the foam layer is distributed on the mica plate (1) in the form of a plurality of strip-shaped foams; when the buffer layer (2) is a silica gel layer, the silica gel layer is distributed on the mica plate (1) in the form of a plurality of strip silica gel strips.
8. The battery cell protection device with the buffer function according to claim 1, 2, 3 or 4, wherein when the buffer layer (2) is a foam layer, the foam layer is distributed on the mica plate (1) in a plurality of foam blocks; when the buffer layer (2) is a silica gel layer, the silica gel layer is distributed on the mica plate (1) in the form of a plurality of silica gel blocks.
9. The battery cell protection device with the buffering function according to claim 1, wherein the mica plate (1) and the buffer layer (2) are fixedly connected through an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221879947.0U CN218385521U (en) | 2022-07-20 | 2022-07-20 | Battery cell protection device with buffering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221879947.0U CN218385521U (en) | 2022-07-20 | 2022-07-20 | Battery cell protection device with buffering function |
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| Publication Number | Publication Date |
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| CN218385521U true CN218385521U (en) | 2023-01-24 |
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| CN202221879947.0U Active CN218385521U (en) | 2022-07-20 | 2022-07-20 | Battery cell protection device with buffering function |
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| CN (1) | CN218385521U (en) |
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2022
- 2022-07-20 CN CN202221879947.0U patent/CN218385521U/en active Active
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