CN114179451A - Novel carbon fiber composite corrugated plate and application - Google Patents
Novel carbon fiber composite corrugated plate and application Download PDFInfo
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- CN114179451A CN114179451A CN202111529773.5A CN202111529773A CN114179451A CN 114179451 A CN114179451 A CN 114179451A CN 202111529773 A CN202111529773 A CN 202111529773A CN 114179451 A CN114179451 A CN 114179451A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 47
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 47
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims description 10
- 230000001680 brushing effect Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
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- 230000000694 effects Effects 0.000 abstract description 2
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- 238000010438 heat treatment Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
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Abstract
The utility model provides a novel carbon-fibre composite buckled plate and application, it belongs to antidetonation energy-absorbing panel field, concretely relates to ripple energy-absorbing board and application. The invention aims to solve the problems that when the corrugated plate made of the carbon fiber composite material is used as a core plate, the failure time is short, and the stress of the residual structure after failure is concentrated. The novel corrugated plate made of the carbon fiber composite material comprises an upper fixing plate, an upper layer corrugated plate, a middle corrugated plate, a lower layer corrugated plate and a lower fixing plate; the upper fixing plate is connected with the upper corrugated plate surface; the upper corrugated plate is provided with an upper corrugated embedding port; the corrugated convex surface of the middle corrugated plate is embedded into the upper corrugated embedding port and is connected with the upper corrugated plate surface; the lower corrugated plate is provided with a lower corrugated embedding port; the corrugated convex surface of the middle corrugated plate is embedded into the lower corrugated embedding port and is connected with the lower corrugated plate surface; the lower fixed plate is connected with the lower corrugated plate surface. It is used as battery box body plate. The advantages are that: the deformation process is relatively uniform, the steel plate is crushed synchronously, and the energy absorption effect is better.
Description
Technical Field
The invention belongs to the field of anti-seismic energy-absorbing plates, and particularly relates to a corrugated energy-absorbing plate and application thereof.
Background
Most of the existing anti-seismic energy-absorbing plates are foamed metal plates (such as foamed aluminum plates), and the anti-seismic energy-absorbing plates made of metal materials are heavy. The carbon fiber composite material is generally considered to be one of reliable choices for automobile lightweight at present, and parameters such as tensile strength, elastic modulus, specific strength and the like of the carbon fiber composite material are obviously superior to those of traditional materials such as aluminum alloy, magnesium alloy and steel; the density is far lower than that of the traditional metal and is about one fourth of that of steel; and the collision energy absorption is 6-7 times of that of steel. When the laminated plate with the same thickness is assembled in an interlocking mode, the carbon fiber composite corrugated plate is greatly reduced in paving times compared with a common carbon fiber composite plate, so that the use of the carbon fiber composite material is reduced, the weight of the plate is further reduced, the carbon fiber composite corrugated plate has certain bearing capacity, and the laminated plate has multiple functions of energy absorption, shock absorption, heat exchange and the like. The existing corrugated plate (lattice sandwich structure) made of carbon fiber composite material consists of two panels with small upper and lower thickness and large rigidity and a relatively thick core body. The panels provide the necessary bending stiffness, in-plane tensile and compressive stiffness, and in-plane shear stiffness of the structure. The core body increases the height and stability of the sandwich structure and bears shearing load; and the existing corrugated plate made of carbon fiber composite material has complex modeling and relatively large production difficulty, and the forming process of the existing dot matrix sandwich structure mainly comprises the following steps: interlocking assembly, compression molding and the like. The requirement of the interlocking assembly on the production precision is higher, stress concentration is easy to occur at the interface of the interlocking assembly, and the material is too thick and difficult to cut. Compression molding: the processing steps are relatively complicated and are not suitable for batch processing. Therefore, the problems of short failure time and concentrated stress on residual structures after failure exist in the use of the prior corrugated plate made of carbon fiber composite material
Disclosure of Invention
The invention aims to solve the problems that when the corrugated plate made of the carbon fiber composite material is used as a core plate, the failure time is short, and the stress of the residual structure after failure is concentrated, and provides the novel corrugated plate made of the carbon fiber composite material and application thereof.
A novel corrugated plate made of carbon fiber composite materials comprises an upper fixing plate, an upper layer corrugated plate, a middle corrugated plate, a lower layer corrugated plate and a lower fixing plate; one side of the upper corrugated plate is provided with an upper corrugated embedding port along the direction vertical to the corrugation; one side of the lower corrugated plate is provided with a lower corrugated embedding port along the direction vertical to the corrugation; one side surface of the upper fixing plate is connected with a corrugated convex surface on one side of the upper corrugated plate, which is deviated from the direction of the upper corrugated scarf joint port; the upper layer corrugated plate and the middle corrugated plate are connected in a mode that the corrugations of the upper layer corrugated plate and the corrugations of the middle corrugated plate are mutually perpendicular, and the corrugated convex surface of the middle corrugated plate facing the upper layer corrugated plate is embedded into the upper corrugated embedding port, so that one side surface of the upper layer corrugated plate, which is far away from the direction of the upper fixing plate, is connected with the middle corrugated plate surface; the lower corrugated plate and the middle corrugated plate are connected in a mode that the corrugation of the lower corrugated plate is perpendicular to the corrugation of the middle corrugated plate, and the corrugated convex surface of the middle corrugated plate facing to the direction of the lower corrugated plate is embedded into the lower corrugated embedding port, so that one side surface of the lower corrugated plate facing to the direction of the upper corrugated plate is connected with the middle corrugated plate; one side of the lower fixing plate is connected with the convex surface of one side of the middle corrugated plate in the direction away from the lower corrugated plate.
The utility model provides an application of novel carbon-fibre composite buckled plate, novel carbon-fibre composite buckled plate uses as battery box body panel.
The invention has the advantages that:
the middle upper layer corrugated plate, the middle corrugated plate and the lower layer corrugated plate of the novel carbon fiber composite corrugated plate form a corrugated dot matrix core plate, the deformation process of the corrugated dot matrix core plate is uniform, the corrugated dot matrix core plate is basically crushed synchronously, and the energy absorption condition is better than that of a common corrugated plate as the core plate.
And only the upper layer corrugated plate is provided with an upper corrugated plate embedding port and the lower layer corrugated plate is provided with a lower corrugated plate embedding port, so that the upper layer corrugated plate and the lower layer corrugated plate are only required to be cut, and when the cutting is carried out according to the design size from the side surface direction, the cutting can be completed at one time, and the cutting process is simple.
Third, novel carbon-fibre composite buckled plate not only have higher bearing capacity, can also satisfy multi-functional design requirements such as energy-absorbing, shock attenuation and heat exchange, therefore novel carbon-fibre composite buckled plate can regard as battery box panel to use.
Drawings
Fig. 1 is a schematic structural diagram of a novel corrugated plate made of carbon fiber composite material.
Fig. 2 is an exploded view of an upper corrugated plate, a middle corrugated plate and a lower corrugated plate in the novel corrugated plate made of carbon fiber composite material.
Fig. 3 is a load graph in which a shows a load graph of the experimental group battery box and B shows a load graph of the control group battery box.
In the drawings: 1-upper fixing plate, 2-upper layer corrugated plate, 21-upper corrugated embedding port, 3-middle corrugated plate, 4-lower layer corrugated plate, 41-lower corrugated embedding port and 5-lower fixing plate.
Detailed Description
The first embodiment is as follows: the novel carbon fiber composite corrugated plate comprises an upper fixing plate 1, an upper layer corrugated plate 2, a middle corrugated plate 3, a lower layer corrugated plate 4 and a lower fixing plate 5; an upper corrugated embedding port 21 is arranged on one side of the upper corrugated plate 2 along the direction vertical to the corrugation; one side of the lower corrugated plate 4 is provided with a lower corrugated embedding port 41 along the direction vertical to the corrugation; one side surface of the upper fixing plate 1 is connected with a corrugated convex surface on one side of the upper corrugated plate 2 departing from the direction of the upper corrugated embedding port 21; the upper layer corrugated plate 2 and the middle corrugated plate 3 are connected in a mode that the corrugations of the upper layer corrugated plate 2 are perpendicular to the corrugations of the middle corrugated plate 3, and the corrugated convex surface of the middle corrugated plate 3 facing the direction of the upper layer corrugated plate 2 is embedded into the upper corrugated embedding port 21, so that one side surface of the upper layer corrugated plate 2 departing from the direction of the upper fixing plate 1 is connected with the surface of the middle corrugated plate 3; the lower corrugated plate 4 and the middle corrugated plate 3 are connected in a mode that the corrugation of the lower corrugated plate 4 is perpendicular to the corrugation of the middle corrugated plate 3, and the corrugated convex surface of the middle corrugated plate 3 facing to the direction of the lower corrugated plate 4 is embedded into the lower corrugated embedding port 41, so that one side surface of the lower corrugated plate 4 facing to the direction of the upper corrugated plate 2 is connected with the surface of the middle corrugated plate 3; a side of the lower fixing plate 5 is connected with the convex surface of the lower corrugated plate 4 which deviates from the middle corrugated plate 3 in one side.
The second embodiment is as follows: the present embodiment differs from the first embodiment in that: the middle corrugated plate 3 faces the upper corrugated plate 2, the direction of the middle corrugated plate is not covered by the upper corrugated plate 2, partial convex surface of one side of the convex surface is blocked by the upper corrugated plate 2, the middle corrugated plate 1 faces the upper corrugated plate 2, and one side surface of the upper corrugated plate is connected. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the middle corrugated plate 3 faces the lower corrugated plate 4, the direction of the lower corrugated plate is not blocked by the lower corrugated plate 4, and a part of one side corrugated convex surface is connected with the lower fixing plate 5, and the lower side surface of the lower corrugated plate is connected with the side surface of the lower corrugated plate 2. The others are the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment and one of the first to third embodiments is as follows: the buckled plate of upper strata buckled plate 2 middle buckled plate 3 with lower floor's buckled plate 4 is trapezoidal buckled plate, upper strata buckled plate 2 middle buckled plate 3 with lower floor's buckled plate 4 specification is the same. The others are the same as the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the thickness of the trapezoidal corrugated plate is 0.8-2 mm, the width of the top of the trapezoidal corrugated boss is 15-18 mm, the width of the bottom of the trapezoidal corrugated boss is 42-46 mm, the waist length of the trapezoidal corrugated boss is 18-24 mm, and the base angle is 45 degrees. The rest is the same as the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is as follows: the trapezoidal corrugated plate is a carbon fiber laminated plate. The rest is the same as the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the upper fixing plate 1 and the lower fixing plate 5 are all formed by machining sheet metal parts. The rest is the same as the first to sixth embodiments.
The specific implementation mode is eight: the difference between this embodiment and one of the first to seventh embodiments is: the top plate 1 with between the upper corrugated plate 2, upper corrugated plate 2 with between the middle corrugated plate 3 with between the lower floor's buckled plate 4 with between the bottom plate 5 top plate 1 with between the middle corrugated plate 3 with face between the bottom plate 5 is connected and is all glued through the brush and bond. The rest is the same as the first to seventh embodiments.
The specific implementation method nine: the difference between this embodiment and the first to eighth embodiments is: the glue is DP460 epoxy glue. The others are the same as the first to eighth embodiments.
The detailed implementation mode is ten: this embodiment is an application of novel carbon-fibre composite buckled plate, and novel carbon-fibre composite buckled plate uses as battery box body panel.
The invention is not limited to the above embodiments, and one or a combination of several embodiments may also achieve the object of the invention.
The following experiments are adopted to verify the effect of the invention:
example 1: a novel corrugated plate made of carbon fiber composite materials comprises an upper fixing plate 1, an upper layer corrugated plate 2, a middle corrugated plate 3, a lower layer corrugated plate 4 and a lower fixing plate 5; an upper corrugated embedding port 21 is arranged on one side of the upper corrugated plate 2 along the direction vertical to the corrugation; one side of the lower corrugated plate 4 is provided with a lower corrugated embedding port 41 along the direction vertical to the corrugation; one side surface of the upper fixing plate 1 is connected with a corrugated convex surface on one side of the upper corrugated plate 2 departing from the direction of the upper corrugated embedding port 21; the upper layer corrugated plate 2 and the middle corrugated plate 3 are connected in a mode that the corrugations of the upper layer corrugated plate 2 are perpendicular to the corrugations of the middle corrugated plate 3, and the corrugated convex surface of the middle corrugated plate 3 facing the direction of the upper layer corrugated plate 2 is embedded into the upper corrugated embedding port 21, so that one side surface of the upper layer corrugated plate 2 departing from the direction of the upper fixing plate 1 is connected with the surface of the middle corrugated plate 3; the lower corrugated plate 4 and the middle corrugated plate 3 are connected in a mode that the corrugation of the lower corrugated plate 4 is perpendicular to the corrugation of the middle corrugated plate 3, and the corrugated convex surface of the middle corrugated plate 3 facing to the direction of the lower corrugated plate 4 is embedded into the lower corrugated embedding port 41, so that one side surface of the lower corrugated plate 4 facing to the direction of the upper corrugated plate 2 is connected with the surface of the middle corrugated plate 3; a side of the lower fixing plate 5 is connected with the convex surface of the lower corrugated plate 4 which deviates from the middle corrugated plate 3 in one side.
In embodiment 1, the middle corrugated plate 3 is connected to the upper fixing plate 1 toward a side surface of the upper corrugated plate 2, which is not covered by the upper corrugated plate 2, and the middle corrugated plate is connected to the upper fixing plate 1 toward the side surface of the upper corrugated plate 2.
In embodiment 1, the middle corrugated plate 3 faces the lower corrugated plate 4, and a part of one side corrugated convex surface which is not covered by the lower corrugated plate 4 is connected with a side surface of the lower fixing plate 5 which faces the lower corrugated plate 2.
In embodiment 1, the upper corrugated plate 2, the middle corrugated plate 3 and the lower corrugated plate 4 are all trapezoidal corrugated plates, and the specifications of the upper corrugated plate 2, the middle corrugated plate 3 and the lower corrugated plate 4 are the same; the thickness of the trapezoidal corrugated plate is 2mm, the width of the top of the trapezoidal corrugated boss is 16mm, the width of the bottom of the trapezoidal corrugated boss is 44.284mm, the waist length of the trapezoidal corrugated boss is 20mm, and the bottom angle is 45 degrees; the trapezoidal corrugated plate is a carbon fiber laminated plate.
In embodiment 1, the upper fixing plate 1 and the lower fixing plate 5 are both formed by sheet metal parts.
In embodiment 1, surface connections between the upper fixing plate 1 and the upper corrugated plate 2, between the upper corrugated plate 2 and the middle corrugated plate 3, between the middle corrugated plate 3 and the lower corrugated plate 4, between the lower corrugated plate 4 and the lower fixing plate 5, between the upper fixing plate 1 and the middle corrugated plate 3, and between the middle corrugated plate 3 and the lower fixing plate 5 are all bonded by glue; the glue is DP460 epoxy glue.
The preparation method of the novel carbon fiber composite corrugated plate comprises the following steps:
firstly, manufacturing a trapezoidal corrugated plate:
firstly, selecting a mold: selecting corresponding dies according to the width of the top of the trapezoidal corrugated plate being 16mm, the width of the bottom of the trapezoidal corrugated plate being 44.284mm, the bottom angle being 45 degrees and the waist length being 20 mm;
secondly, coating a release agent: coating 5 layers of mold release agents on the mold, and naturally drying for 4 hours;
thirdly, laying carbon fibers: alternately laying the single-layer unidirectional carbon fiber/epoxy resin prepreg on a mold according to the direction of 0/90 degrees, laying the single-layer unidirectional carbon fiber/epoxy resin prepreg according to the actual required thickness, and then molding to the expected thickness to obtain the mold with the carbon fiber;
fourthly, curing: putting the mould with the carbon fiber into a vacuum bag, heating to 120 ℃ from room temperature at a heating rate of 1 ℃/min in a curing furnace, preserving the heat for 9min at the temperature of 120 ℃, naturally cooling to below 60 ℃, and demoulding to obtain a trapezoidal corrugated plate;
preparing an upper-layer corrugated plate 2, a middle corrugated plate 3 and a lower-layer corrugated plate 4:
firstly, a trapezoidal corrugated plate is used as a middle corrugated plate 3;
cutting the corrugated boss of the trapezoidal corrugated plate along the direction vertical to the corrugated boss of the trapezoidal corrugated plate according to the size of the inverted corrugated boss, so that a corrugated embedding port is formed on one side of the trapezoidal corrugated plate, and the trapezoidal corrugated plate with the corrugated embedding port is used as an upper-layer corrugated plate 2 and a lower-layer corrugated plate 4; the upper layer corrugated plate 2 is provided with an upper corrugated embedding port 21 along the vertical corrugated direction, and the lower layer corrugated plate 4 is provided with a lower corrugated embedding port 4 along the vertical corrugated direction;
the width of the top of the trapezoidal corrugated plate is 16mm, the width of the bottom of the trapezoidal corrugated plate is 42.68mm, the bottom angle of the trapezoidal corrugated plate is 45 degrees, the waist length of the trapezoidal corrugated plate is 23.11mm, and the interval between every two notches is 15.34 mm;
thirdly, preparing an upper fixing plate 1 and a lower fixing plate 5:
processing the sheet metal part according to the actual required size to obtain an upper fixing plate 1 and a lower fixing plate 5;
fourthly, assembling: firstly, adhering a contact part of one side surface of the upper fixing plate 1 and a corrugated convex surface of one side of the upper corrugated plate 2 departing from the direction of the upper corrugated embedding port 21 in a glue brushing mode; embedding a corrugated convex surface of the middle corrugated plate 3 facing to the direction of the upper corrugated plate 2 into the upper corrugated embedding port 21 according to a mode that the corrugations of the upper corrugated plate 2 are perpendicular to those of the middle corrugated plate 3, and adhering the contact position of the upper corrugated plate 2 and the middle corrugated plate 3 in a glue brushing mode; embedding the corrugated convex surface of the middle corrugated plate 3 facing to the direction of the lower corrugated plate 4 into the lower corrugated embedding port 41 in a mode that the corrugation of the lower corrugated plate 4 is perpendicular to the corrugation of the middle corrugated plate 3, and adhering the contact part of the lower corrugated plate 4 and the middle corrugated plate 3 in a glue brushing mode; and finally, one side surface of the lower fixing plate 5 is deviated from the lower corrugated plate 4. the contact position of the convex surface of the corrugated plate in one side in the direction of the middle corrugated plate 3 is bonded by adopting a glue brushing mode to obtain a novel carbon fiber composite corrugated plate.
The preparation method has the advantages that: firstly, the cutting times are less: only the upper corrugated plate 2 and the lower corrugated plate 4 need to be cut and can be cut at one time from the side direction according to the designed size. Compared with the processing flow that the embedded pieces need to be cut one by one in an embedded lock assembly type, the scheme greatly simplifies the cutting times. Two, one-way carbon fiber of individual layer epoxy preimpregnation material thickness is honored as 0.1mm, lays according to actual need thickness, compares in traditional pyramid lattice structure and has obviously reduced thickness.
Comparative example 1: the pyramid lattice structure battenboard:
firstly, a carbon fiber laminated plate with the thickness of 3mm is divided into a plurality of regular triangle carbon fiber laminated plates, every four regular triangle carbon fiber laminated plates are bonded and combined into a pyramid lattice through glue brushing, the height of the pyramid lattice is 22mm, the pyramid lattices are uniformly and sequentially bonded on a lower fixing plate, two adjacent pyramid lattices are bonded with each other with only one edge, and an upper fixing plate is bonded on one side of the pyramid lattice, which is far away from the direction of the lower fixing plate, so that a pyramid lattice structure sandwich plate is obtained; the upper fixing plate is the same as the upper fixing plate 1 of embodiment 1, and the lower fixing plate is the same as the lower fixing plate 5 of embodiment 1.
The novel carbon fiber composite corrugated plate obtained in the embodiment 1 and the pyramid lattice structure sandwich plate obtained in the comparative example 1 are used as battery box body plates to prepare an experimental battery box and a control battery box.
The load of the test group battery box and the control group battery box is detected under the same load, and a load-displacement curve chart is drawn, as shown in fig. 3, wherein fig. 3 is a load curve chart, a represents the load curve chart of the test group battery box, and B represents the load curve chart of the control group battery box. As is apparent from fig. 3, the peak load value of the experimental group cell box was higher than that of the control group cell box, and from the analysis data, the maximum load value of the experimental group cell box reached 18438.2N, while that of the control group cell box reached 12532.3N. And the position at which the slope of the load-displacement curve of the experimental battery pack became 0 was further back, which means that the experimental battery pack failed later. Therefore, the novel carbon fiber composite corrugated plate is superior to a pyramid lattice structure sandwich plate in mechanical property. And it can be understood from fig. 3 that the load profile of the experimental group battery box and the load profile of the control group battery box have different trends. At displacements less than 0.2mm, both are hardly deformed, and the slopes of the two curves are the same due to the same material parameters and the like. The curve of the control cell box then began to fluctuate as the pyramidal lattice began to bend and break. When the pyramid lattice fails, the acting force of the pyramid lattice temporarily rises until the new pyramid lattice fails, and finally the pyramid lattice fails as a whole. And the failure of the experimental battery pack box is gradual and integral, so the corrugated lattice core plate surface of the novel carbon fiber composite corrugated plate is gradually wrinkled and crushed after reaching the peak value.
Claims (10)
1. A novel corrugated plate made of carbon fiber composite materials is characterized by comprising an upper fixing plate (1), an upper layer corrugated plate (2), a middle corrugated plate (3), a lower layer corrugated plate (4) and a lower fixing plate (5); an upper corrugated embedding port (21) is arranged on one side of the upper corrugated plate (2) along the vertical corrugated direction; one side of the lower corrugated plate (4) is provided with a lower corrugated embedding port (41) along the vertical corrugated direction; one side surface of the upper fixing plate (1) is connected with a corrugated convex surface on one side of the upper corrugated plate (2) departing from the direction of the upper corrugated embedding port (21); the upper layer corrugated plate (2) is connected with the middle corrugated plate (3) in a mode that the corrugation of the upper layer corrugated plate (2) is perpendicular to the corrugation of the middle corrugated plate (3), and the corrugated convex surface of the middle corrugated plate (3) facing to the direction of the upper layer corrugated plate (2) is embedded into the upper corrugated embedding port (21) so that one side surface of the upper layer corrugated plate (2) departing from the direction of the upper fixing plate (1) is connected with the surface of the middle corrugated plate (3); the lower layer corrugated plate (4) is connected with the middle corrugated plate (3) in a mode that the corrugation of the lower layer corrugated plate (4) is perpendicular to the corrugation of the middle corrugated plate (3), and the corrugated convex surface of the middle corrugated plate (3) facing to the direction of the lower layer corrugated plate (4) is embedded into the lower corrugated embedding port (41) to enable one side surface of the lower layer corrugated plate (4) facing to the direction of the upper layer corrugated plate (2) to be connected with the surface of the middle corrugated plate (3); one side of the lower fixing plate (5) is connected with the convex surface of one side of the middle corrugated plate (3) in the direction, and the lower corrugated plate (4) is connected with the convex surface of the other side of the middle corrugated plate in the direction.
2. The corrugated plate made of carbon fiber composite materials as claimed in claim 1, wherein the convex surface of one side of the middle corrugated plate (3) facing the upper corrugated plate (2) and the convex surface of one side of the middle corrugated plate not covered by the upper corrugated plate (2) are connected with one side of the upper fixing plate (1) facing the upper corrugated plate (2).
3. The corrugated plate made of carbon fiber composite materials as claimed in claim 2, wherein the convex surface of one side of the middle corrugated plate (3) facing the lower corrugated plate (4) and the convex surface of one side of the lower fixed plate (5) facing the lower corrugated plate (2) are connected.
4. The corrugated plate made of carbon fiber composite materials as claimed in claim 3, wherein the upper corrugated plate (2), the middle corrugated plate (3) and the lower corrugated plate (4) are both trapezoidal corrugated plates, and the specifications of the upper corrugated plate (2), the middle corrugated plate (3) and the lower corrugated plate (4) are the same.
5. The novel corrugated plate made of carbon fiber composite materials as claimed in claim 4, wherein the thickness of the trapezoidal corrugated plate is 0.8mm to 2mm, the width of the top of the trapezoidal corrugated boss is 15mm to 18mm, the width of the bottom of the trapezoidal corrugated boss is 42mm to 46mm, the waist length of the trapezoidal corrugated boss is 18mm to 24mm, and the bottom angle is 45 degrees.
6. The novel corrugated plate made of carbon fiber composite material as claimed in claim 5, wherein the trapezoidal corrugated plate is a carbon fiber laminated plate.
7. The corrugated plate made of the novel carbon fiber composite material as claimed in claim 6, wherein the upper fixing plate (1) and the lower fixing plate (5) are both formed by processing sheet metal parts.
8. The corrugated plate made of carbon fiber composite materials according to claim 7, wherein the surface connections between the upper fixing plate (1) and the upper corrugated plate (2), between the upper corrugated plate (2) and the middle corrugated plate (3), between the middle corrugated plate (3) and the lower corrugated plate (4), between the lower corrugated plate (4) and the lower fixing plate (5), between the upper fixing plate (1) and the middle corrugated plate (3), and between the middle corrugated plate (3) and the lower fixing plate (5) are all bonded by brushing glue.
9. The novel corrugated sheet of carbon fiber composite material as claimed in claim 8, wherein said glue is DP460 epoxy glue.
10. The utility model provides an application of novel carbon-fibre composite buckled plate, its characterized in that novel carbon-fibre composite buckled plate uses as battery box panel.
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