CN217641634U - Curb plate module and electricity core module - Google Patents
Curb plate module and electricity core module Download PDFInfo
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- CN217641634U CN217641634U CN202220590683.0U CN202220590683U CN217641634U CN 217641634 U CN217641634 U CN 217641634U CN 202220590683 U CN202220590683 U CN 202220590683U CN 217641634 U CN217641634 U CN 217641634U
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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
Abstract
The application relates to the technical field of power batteries, in particular to a side plate module and a battery cell module. The side plate module comprises a composite material assembly and a light metal connecting component; the composite material assembly is plate-shaped, and the length direction of the composite material assembly is used for keeping consistent with the circumferential direction of the battery core; the two ends of the composite material assembly in the length direction are connected with light metal connecting components, and the light metal connecting components are provided with connecting parts used for being connected with the battery core. The battery cell module comprises the side plate module. This curb plate module and this electric core module can be under the prerequisite that alleviates the whole weight of curb plate module, increase the intensity of curb plate, effectively improve the electric core module of using this curb plate module and at the anti fatigue endurance and the anti deformability of complicated operating mode such as vibration, extrusion and fall, play simultaneously to electric core thermal runaway have better reduction and have good thermal insulation performance, can reduce the risk that electric core module is on fire, explodes under complicated operating mode moreover.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a side plate module and a battery cell module.
Background
In the running process of the electric vehicle, various complex working conditions can be met. In order to improve the capability of the battery cell module to deal with various working conditions, the structural strength of the battery cell module must be improved, and the overall safety performance of the battery cell module is directly influenced by the design mode of the battery cell module structure.
With the concern about safety performance and energy, the safety performance and light weight of the battery cell module become more and more important, and the conventional module side plate is usually made of steel or aluminum, so that the weight of the whole pack may be increased.
Therefore, it is desired to solve the technical problem of how to achieve weight reduction of the cell module and ensure sufficient structural strength of the cell module.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a curb plate module and electric core module to solve to a certain extent that exist among the prior art and have sufficient structural strength and lead to unable light-weighted technical problem of realization electric core module in order to ensure that electric core module has.
The application provides a side plate module, which comprises a composite material assembly and a light metal connecting component;
the composite material assembly is plate-shaped, and the length direction of the composite material assembly is used for keeping consistent with the circumferential direction of the battery core;
the two ends of the composite material assembly in the length direction are connected with the light metal connecting component, and the light metal connecting component is provided with a connecting part used for being connected with the battery core.
In the above technical solution, further, the composite material assembly includes a first plate member, and the material of the first plate member is a composite material;
the first plate member includes a first plate body and a reinforcing rib provided to the first plate body.
In any of the above technical solutions, further, the first plate member further includes a mounting beam, the mounting beam is disposed on an outer surface of the first plate body, and the mounting beam is provided with a mounting portion connected to a box body for mounting the battery cell module.
In any of the above technical solutions, further, the composite material assembly further includes a second plate member, and the material of the second plate member is a composite material;
the second plate member is superposed on the inner surface of the first plate body, and the thickness of the second plate member is smaller than that of the first plate body.
In any one of the foregoing technical solutions, further, the second plate member includes a plurality of second sub-plate members, and the plurality of second sub-plate members are arranged at intervals along the length direction of the composite material assembly to be attached to the side walls of the plurality of battery cells of the battery cell in a one-to-one correspondence.
In any one of the above technical solutions, further, the first plate member is provided with a weight-reduction through hole, and the weight-reduction through hole penetrates through the first plate body along the thickness direction of the first plate body;
and/or the first plate member and the second plate member are integrally formed by injection molding, pressure melting molding or bonding.
In any of the above technical solutions, further, the light metal connecting member and the composite material assembly are integrally injection molded, compression-fusion molded or adhesion molded;
the light metal connecting component is made of aluminum, aluminum alloy or magnesium alloy;
the composite material is glass fiber reinforced plastic, carbon fiber, a photovoltaic glass, a cauterizing material, PPA or PPS.
In any of the above technical solutions, further, the light metal connecting member is provided with a first clamping groove, the composite material assembly is provided with a second clamping groove matched with the first clamping groove, and the light metal connecting member and the composite material assembly are clamped with each other through the first clamping groove and the second clamping groove.
In any of the above technical solutions, further, the light metal connecting member is connected with the composite material assembly through the first plate member;
the first clamping groove and the second clamping groove are both necking grooves.
The application also provides a battery cell module, which comprises the side plate module and a battery cell.
Compared with the prior art, the beneficial effects of this application do:
the application provides a curb plate module includes combined material subassembly and light metal connecting elements. The combined material subassembly is platelike, and the length direction of combined material subassembly is used for keeping unanimous with the circumference of electric core, and the length direction's of combined material subassembly both ends are connected with light metal connecting component, and light metal connecting component is formed with the connecting portion that are used for being connected with electric core to connecting portion through light metal connecting piece realize being connected between this curb plate module and the electric core, thereby laminate mutually with the equipment of realization the two through the lateral part of platelike combined material subassembly and electric core.
Thereby this curb plate module, it is first, compare in traditional full steel or full aluminium curb plate, adopt platelike combined material subassembly as the main part of curb plate module, because combined material has hardness big, intensity is high, thermal-insulated thermal insulation performance is high, the long and light in weight's of durability advantage, so can be under the prerequisite of the whole weight that alleviates the curb plate module, increase the intensity of curb plate, effectively improve the electric core module that uses this curb plate module and be vibrating, the extrusion and fall the anti fatigue endurance and the anti deformability of complicated operating mode such as fall, play simultaneously and have better reduction and have good thermal insulation performance to electric core thermal runaway, and can reduce electric core module and catch fire under complicated operating mode, the risk of explosion.
The second is connected with electric core through adopting light metal connecting piece, adopts the metal in small area in order to ensure under the prerequisite of lightweight degree, has improved the reliability of being connected between this curb plate module and the electric core.
The application provides an electricity core module, including foretell curb plate module, therefore, can realize all beneficial effects of this curb plate module.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a side panel module according to an embodiment of the present application;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic structural diagram of a cell module provided in an embodiment of the second aspect of the present application.
Reference numerals:
1-a side plate module; 10-a light metal connecting member; 100-a connecting part; 101-a first card slot; 11-a composite component; 110-a first plate member; 1100-a first plate body; 1101-reinforcing ribs; 1102-mounting a beam; 1103-a mounting part; 1104-weight reducing vias; 1105-a second card slot; 111-a second plate member; 1110-a second daughter board member; 2-a cell module; and (20) preparing a battery cell.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Example one
Referring to fig. 1 to 3 in combination with fig. 4, an embodiment of the present application provides a side plate module 1, which is configured to be disposed at a side portion of a plurality of battery cells 20 arranged in an array of a battery cell module 2. Specifically, the battery cell 20 has a height direction and a circumferential direction, and the circumferential direction of the battery cell 20 is arranged around the height direction of the battery cell 20. Along electric core 20's circumference, electric core 20 is formed with a plurality of lateral parts that are the angle in order and connect usually, and wherein a part lateral part of electric core 20 exposes along electric core module 2's circumference, therefore can be used for installing this curb plate module 1, and another part lateral part of electric core 20 faces rather than adjacent other electric cores 20, therefore then can not be used for installing this curb plate module 1.
The side panel module 1 includes a composite material assembly 11 and a light metal connecting member 10. Wherein, install in the lateral part of electric core 20 through the main part of combined material subassembly 11 conduct curb plate module 1, light metal connecting elements 10 forms the essential element of relation of connection as curb plate module 1 and electric core 20 to it is fixed mutually with curb plate module 1 and electric core 20, thereby makes the two connect into electric core module 2 wholly.
Hereinafter, the above-described components of the side panel module 1 will be described in detail.
In an alternative of this embodiment, the composite material assembly 11 is plate-shaped, a length direction of the composite material assembly 11 is used to be consistent with a circumferential direction of the battery core 20, specifically, the composite material assembly 11 is used to be attached to a lateral portion of the battery core 20, where "the length direction of the composite material assembly 11" refers to a dimension of the composite material assembly 11 used to be consistent with the circumferential direction of the battery core 20 in a use state, and a dimension of the attached composite material assembly 11 and the lateral portion of the battery core 20 along the circumferential direction of the battery core 20 are matched to achieve overall coverage along the circumferential direction of the battery core 20, and similarly, a dimension of the attached composite material assembly 11 and the lateral portion of the battery core 20 along the height direction of the battery core 20 are matched to achieve overall coverage along the height direction of the battery core 20.
In this embodiment, the composite material assembly 11 includes a first plate member 110, and the material of the first plate member 110 is a composite material.
The first plate member 110 includes a first plate body 1100 and reinforcing ribs 1101, that is, both the first plate body 1100 and the reinforcing ribs 1101 are made of a composite material, and the reinforcing ribs 1101 are provided on the first plate body 1100, specifically, the reinforcing ribs 1101 may be provided on an outer surface of the first plate body 1100, for example, or the reinforcing ribs 1101 may be provided on an inner surface of the first plate body 1100, for example, so that the reinforcing ribs 1101 improve the strength and rigidity of the first plate body 1100, thereby improving the strength and rigidity of the first plate member 110.
It is worth explaining that the inner surface of the first plate body 1100 refers to a surface of the first plate body 1100 facing the battery cell 20, and the outer surface of the first plate body 1100 refers to a surface of the second plate body facing away from the battery cell 20.
Optionally, the number of the reinforcing ribs 1101 is at least one, i.e., one, two, three or more.
Alternatively, the ribs 1101 may extend along a straight line or a curved line, and the plurality of ribs 1101 may be arranged side by side at intervals or in a crossing arrangement.
In this embodiment, the first plate member 110 further includes a mounting beam 1102, i.e., the mounting beam 1102 is made of a composite material.
The installation beam 1102 is arranged on the outer surface of the first plate body 1100, the installation beam 1102 is provided with an installation part 1103 connected with a box body used for installing the battery cell module 2, the first plate member 110 is connected with the box body through the installation part 1103, the connection between the side plate module 1 and the box body can be realized, and then the battery cell module 2 using the side plate module 1 is fixedly installed inside the box body.
Specifically, the mounting portion 1103 may be, for example, a screw mounting hole or a connecting flange, and the mounting portion 1103 may be, for example, connected to a cross beam of the cabinet, where the mounting portion 1103 is a screw mounting hole, which is advantageous for simplifying the structure of the first plate member 110 and for improving the degree of weight reduction of the side panel module 1.
Alternatively, the mounting beam 1102 extends over the first plate body 1100 along the length direction of the composite material assembly 11, and the mounting beam 1102 is provided with a plurality of mounting portions 1103 arranged at intervals in sequence along the length direction of the composite material assembly 11.
Alternatively, the installation beam 1102 is disposed at an intermediate position of the first plate body 1100 in the height direction of the first plate body 1100.
In this embodiment, the composite material assembly 11 further includes a second plate member 111, the material of the second plate member 111 is a composite material, the second plate member 111 is stacked on the inner surface of the first plate body 1100, and the thickness of the second PPA plate member is smaller than the thickness of the first plate body 1100.
Since the thickness of the second plate member 111 is smaller than that of the first plate member 110, and the second plate member 111 is not provided with the reinforcing ribs 1101, the strength and rigidity of the second plate member 111 are smaller than those of the first plate member 110, so that the degree of adhesion between the second plate member 111 and each of the battery cells 20 in the cell module 2 is higher, and thus the degree of adhesion between the side portions of the battery cells 20 and the composite material assembly 11 is improved, and the reliability and integrity of the connection with the side portions of the battery cells 20 are improved.
In this embodiment, the second plate member 111 includes a plurality of second sub-plate members 1110, and the plurality of second sub-plate members 1110 are arranged at intervals along the length direction of the composite material assembly 11, so as to be attached to the side walls of the plurality of battery cells 20 of the battery cells 20 in a one-to-one correspondence, thereby further improving the attachment degree between the second plate member 111 and each battery cell 20, and further improving the connection reliability and connection integrity of the side plate module 1 and the side portion of the battery cell 20.
In addition, since the second plate member 111 is disassembled into the plurality of second sub-plate members 1110, the same second sub-plate members 1110 are manufactured repeatedly, and each second sub-plate member 1110 is attached to the side portion of each cell 20, so that the attachment and installation of the second plate member 111 to the side portion of the cell 20 can be completed.
Optionally, each second sub-plate member 1110 is rectangular such that the second sub-plate members 1110 match the shape of the side of each cell 20.
In this embodiment, the first plate member 110 is provided with the weight-reducing through hole 1104, and the weight-reducing through hole 1104 penetrates through the first plate body 1100 along the thickness direction of the first plate body 1100, so that the weight-reducing through hole 1104 can reasonably reduce the weight of the first plate member 110 on the premise of ensuring that the structural strength of the first plate member 110 is sufficient.
The first plate member 110 and the second plate member 111 are integrally injection-molded, or the first plate member 110 and the second plate member 111 are compression-molded, or the first plate member 110 and the second plate member 111 are adhesively molded, and the first plate member 110 and the second plate member 111 can be connected in a high integrity by the connecting modes, so that the side plate module 1 is prevented from being accidentally layered in the using process.
The lightening through holes 1104 can also be used as crimping holes when the first plate member 110 and the second plate member 111 are formed by compression-welding.
In an alternative of this embodiment, both ends of the composite material assembly 11 in the length direction are connected to the light metal connecting member 10, and the light metal connecting member 10 is formed with a connecting portion 100 for connecting with the battery cell 20, so that on one hand, the composite material assembly 11 is connected with the battery cell 20 through the light metal connecting member 10, that is, the side plate module 1 is connected with and fixed to the battery cell 20. On the other hand, the light metal connecting member 10 is used in a small area, and has a small influence on the weight reduction of the side plate module 1, and the structural strength of the connection position between the side plate module 1 and the battery cell 20 can be improved.
Alternatively, the connecting portion 100 may be, for example, a connecting hole, so as to fasten the side plate module 1 and the end plate of the battery cell 20 to each other through the connecting hole.
In this embodiment, the light metal connecting member 10 and the composite material assembly 11 are integrally injection-molded, or the light metal connecting member 10 and the composite material assembly 11 are compression-melted, or the light metal connecting member 10 and the composite material assembly 11 are bonded, and the light metal connecting member 10 and the composite material assembly 11 are connected by the above-mentioned several methods, so that the two connected members have higher integrity, and the connection reliability of the two members is improved.
The light metal connecting member 10 is made of aluminum, aluminum alloy, or magnesium alloy.
The composite material is glass fiber reinforced plastic, carbon fiber, kalavian, burning material, PPA (Polyphthalamide) or PPO (polyphenyleneoxide).
The glass fiber reinforced plastic can be made of glass fiber and phenolic resin. The PPA or PPS may be made, for example, of a combination of primarily nylon or modified nylon with fiberglass. The carbon fiber is mainly compounded by taking an organic polymer material as a matrix and taking the carbon fiber as a reinforcing material. The Kalava is made of polymer composite materials, is usually used for structural parts, and has the characteristics of insulation, heat preservation and the like. The burning material is a high molecular composite material made of glass fiber and epoxy resin of phenolic plastic, and has better high temperature resistance.
In this embodiment, the light metal connecting component 10 is provided with a first clamping groove 101, the composite material component 11 is provided with a second clamping groove 1105 adapted to the first clamping groove 101, and the light metal connecting component 10 and the composite material component 11 are clamped by the first clamping groove 101 and the second clamping groove 1105.
In this embodiment, the light metal connecting member 10 is connected to the composite material assembly 11 through the first plate member 110, that is, the second slot 1105 is opened in the first plate member 110, the light metal connecting member 10 is connected to the first plate member 110 by the first slot 101 and the second slot 1105, and the light metal connecting member 10 and the first plate member 110 are integrally formed by injection molding, compression molding or bonding.
The first card slot 101 and the second card slot 1105 are both a reduced slot, and it should be explained that the "reduced slot" means that the slot opening of the card slot has a smaller size than at least one position inside the card slot, such as a T shape as shown in fig. 3, or a trapezoid shape not shown in the figure (the slot opening corresponds to the shorter bottom side of the trapezoid), or a shell shape not shown in the figure (the slot opening corresponds to the bottom side of the shell shape), or a hot air balloon shape as shown in the figure (the slot opening corresponds to the bottom side of the hot air balloon shape), and the like, so that the connection strength between the light metal connection member 10 and the first plate member 110 can be improved, and particularly, the tensile strength and the compressive strength of the two along the length direction of the first plate member 110 can be improved.
Example two
The second embodiment provides a battery cell module, and the second embodiment includes the side plate module in the first embodiment, and the technical features of the side plate module disclosed in the first embodiment are also applicable to the first embodiment, and the technical features of the side plate module disclosed in the first embodiment are not described repeatedly.
As shown in fig. 4 in combination with fig. 1 to 3, the cell module 2 includes a cell 20 and a side plate module 1. For example, battery cell 20 is in the shape of a cube, and two opposite side portions of the circumference of battery cell 20 are provided with side plate modules 1.
The connection condition of the side plate module 1 to the battery cell 20 is verified through an experiment as follows:
firstly, resonance analysis is performed on the cell module 2, specifically, constraint modal analysis is performed on the cell module 2, and an analysis result shows that a first-order overall modal is 173Hz and is greater than a reference value of 150Hz, so that the vibration requirement is met.
Secondly, the cell module 2 is subjected to vibration intensity analysis, specifically, the cell module 2 is subjected to random vibration analysis, and the analysis result shows that the first-order overall mode is 147Hz and is close to reference 150Hz, so that the vibration requirement is met. Under the working condition of random vibration, the Z direction 1RMS stress is 22.3MPa, which is less than the reference value of 29.6MPa, the Y direction 1RMS stress is 4.03MPa, the X direction 1RMS stress is 5.78MPa, the Y direction and the X direction are both smaller than the reference value of 90MPa, and the requirement of the vibration strength is met.
Thirdly, the cell module 2 is subjected to drawing strength analysis, specifically, the analysis result shows that when the drawing external force is 20KN, the maximum stress is 211MPa, which is smaller than the reference value of the tensile strength of 280MPa, and the phenomena such as fracture do not occur, so that the drawing requirement is met.
The battery cell module in this embodiment has the advantages of the side plate module in the first embodiment, and the advantages of the side plate module disclosed in the first embodiment are not described again here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (10)
1. A side panel module, characterized in that the side panel module comprises a composite material assembly and a light metal connecting member;
the composite material assembly is plate-shaped, and the length direction of the composite material assembly is used for keeping consistent with the circumferential direction of the battery core;
and two ends of the composite material assembly in the length direction are connected with the light metal connecting component, and the light metal connecting component is provided with a connecting part used for being connected with the battery core.
2. The side panel module of claim 1, wherein the composite material assembly comprises a first panel member, the first panel member being formed of a composite material;
the first plate member includes a first plate body and a reinforcing rib provided to the first plate body.
3. The side panel module of claim 2, wherein the first panel member further comprises a mounting beam disposed on an outer surface of the first panel body, the mounting beam being provided with a mounting portion connected to a case for mounting the cell module.
4. The side panel module of claim 3, wherein the composite material assembly further comprises a second panel member, the second panel member being made of a composite material;
the second plate member is superposed on the inner surface of the first plate body, and the thickness of the second plate member is smaller than that of the first plate body.
5. The side panel module of claim 4, wherein the second panel member comprises a plurality of second sub-panel members, and the plurality of second sub-panel members are arranged at intervals along a length direction of the composite material assembly to be attached to side walls of the plurality of cells of the cells in a one-to-one correspondence.
6. The side panel module according to claim 4, wherein the first panel member is provided with a weight-reduction through hole penetrating the first panel body in a thickness direction of the first panel body;
and/or the first plate member and the second plate member are integrally formed by injection molding, pressure melting molding or bonding.
7. The side panel module of claim 2, wherein the light metal connecting member is injection molded, compression melt molded, or adhesively molded integrally with the composite material assembly;
the light metal connecting component is made of aluminum, aluminum alloy or magnesium alloy;
the composite material is glass fiber reinforced plastic, carbon fiber, a Kalava, a cauterizing material, PPA or PPS.
8. The side panel module of claim 7, wherein the light metal connecting member defines a first engaging groove, the composite material assembly defines a second engaging groove adapted to the first engaging groove, and the light metal connecting member and the composite material assembly are engaged with each other through the first engaging groove and the second engaging groove.
9. The side panel module of claim 8, wherein the light metal connecting member is connected to the composite material assembly through the first panel member;
the first clamping groove and the second clamping groove are both necking grooves.
10. A battery cell module, comprising the side plate module of any one of claims 1 to 9 and a battery cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590683.0U CN217641634U (en) | 2022-03-17 | 2022-03-17 | Curb plate module and electricity core module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220590683.0U CN217641634U (en) | 2022-03-17 | 2022-03-17 | Curb plate module and electricity core module |
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| Publication Number | Publication Date |
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| CN217641634U true CN217641634U (en) | 2022-10-21 |
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| CN202220590683.0U Active CN217641634U (en) | 2022-03-17 | 2022-03-17 | Curb plate module and electricity core module |
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| CN (1) | CN217641634U (en) |
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- 2022-03-17 CN CN202220590683.0U patent/CN217641634U/en active Active
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