CN110660938B - An electric vehicle battery box based on zero Poisson's ratio material - Google Patents
An electric vehicle battery box based on zero Poisson's ratio material Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
本发明公开了一种基于零泊松比材料的电动汽车电池箱，属于新能源电动汽车领域，采用蛇形环式的零泊松比材料的元胞结构，其垂直于受载面方向应变为零的力学特性，可以更好地缓解汽车在遭受撞击时对于电池的损坏以及影响。本发明包括上盖板、吸能盒体、箱体板a、箱体板b、下底板；上盖板、两片箱体板a、两片箱体板b、下底板组合安装为箱体，吸能盒体位于箱体内；吸能盒体包括铝合金导热板、碳纤维吸热板、混合泊松比三维结构材料、吸能盒上盖板，铝合金导热板紧贴电池本体，碳纤维吸热板紧贴箱体板a和箱体板b内壁，铝合金导热板和碳纤维吸热板之间填充零泊松比三维结构材料。
The invention discloses an electric vehicle battery box based on a zero Poisson's ratio material, which belongs to the field of new energy electric vehicles. Zero mechanical properties can better alleviate the damage and impact of the car on the battery when it is hit. The present invention includes an upper cover plate, an energy absorbing box body, a box body plate a, a box body plate b, and a lower bottom plate; the upper cover plate, two pieces of box body plates a, two pieces of box body plates b, and the lower bottom plate are assembled to form a box body , the energy-absorbing box body is located in the box; the energy-absorbing box body includes aluminum alloy heat-conducting plate, carbon fiber heat-absorbing plate, mixed Poisson's ratio three-dimensional structural material, upper cover plate of energy-absorbing box, aluminum alloy heat-absorbing plate is close to the battery body, carbon fiber heat-absorbing plate The hot plate is close to the inner wall of the box plate a and the box plate b, and the three-dimensional structure material with zero Poisson's ratio is filled between the aluminum alloy heat-conducting plate and the carbon fiber heat-absorbing plate.
Description
Technical Field
The invention belongs to the field of new energy electric automobiles, and particularly relates to an electric automobile battery box based on a zero Poisson ratio material.
Background
"zero poisson's ratio material" refers to a material in which the strain in the direction perpendicular to the direction of action of the load does not change when the material is under tension or compression. Materials with a "zero poisson's ratio effect" are most often used in applications where they are sensitive to deformation in the unloaded direction or where the strain in the unloaded direction is not allowed to change. Because the material with the zero Poisson ratio effect is generally a honeycomb structure, the material has better performance than the common material in the aspects of energy absorption and shock absorption.
The battery of the electric automobile is a power source of the electric automobile, and the normal running of the automobile can be seriously influenced if the battery of the electric automobile is damaged. Since a normal-running automobile is likely to hit a battery portion when an accidental impact is applied thereto, it is necessary to protect the battery with a material having a certain excellent performance, and damage to the battery is minimized.
The protection scheme of current electric automobile battery mainly focuses on the selection of casing material, through choosing high strength material probably leads to the increase of battery box whole quality. And present electric automobile battery most all reduces the harm that the collision caused to inside battery module through set up certain clearance between for battery case and battery or battery and the battery, in case when the striking is comparatively serious, hardly guarantee not to reach inside battery module.
Disclosure of Invention
The invention provides an electric vehicle battery box based on a zero-Poisson ratio material, which adopts a snakelike ring type cellular structure of the zero-Poisson ratio material, has the mechanical characteristic that the strain is zero in the direction vertical to a loaded surface, and can better relieve the damage and the influence of an automobile on a battery when the automobile is impacted.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric vehicle battery box based on zero poisson's ratio material, comprising: the energy-absorbing box comprises an upper cover plate 1, an energy-absorbing box body 3, a box body plate a4, a box body plate b5 and a lower bottom plate 10; the upper cover plate 1, the two box body plates a4, the two box body plates b5 and the lower bottom plate 10 are assembled into a box body, and the energy-absorbing box body 3 is positioned in the box body; the energy absorption box body 3 comprises an aluminum alloy heat conduction plate 11, a carbon fiber heat absorption plate 12, a zero Poisson ratio three-dimensional structure material 13 and an energy absorption box upper cover plate 15, wherein the aluminum alloy heat conduction plate 11 is tightly attached to the battery body, the carbon fiber heat absorption plate 12 is tightly attached to the inner walls of a box body plate a4 and a box body plate b5, and the zero Poisson ratio three-dimensional structure material 13 is filled between the aluminum alloy heat conduction plate 11 and the carbon fiber heat absorption plate 12.
In the structure, the upper cover plate 1 and the lower base plate 10 are both provided with the grooves 6 matched with the batteries, so that the batteries are convenient to fix and install, the peripheries of the upper cover plate 1 and the lower base plate 10 are both provided with the threaded holes 14 which penetrate through the upper cover plate 1 and the lower base plate 10 and are aligned with the threaded holes 14 on the box body plate a4 and the box body plate b5, the upper cover plate 1 and the lower base plate 10 are assembled and matched with the box body plate a4 and the box body plate b5 through the screws 2, and the rubber gaskets are added in the middle; the lower base plate 10 is designed with a flange and a threaded hole 14, so that the lower base plate 10 can be conveniently installed on a vehicle body through the screw 2.
Box board a4, box board b5 both sides design has slope short-side board 16, and all design has screw hole 14, realize two box board a4 through screw 2 and nut 8, the installation of two box board b5, and the gasket is installed to cooperation department, box board a4 and the inside water course 17 that has designed respectively of box board b5, the outside design has water inlet 7 and delivery port 9, water inlet 7 and delivery port 9 are located the diagonal position in the box outside, make things convenient for the coolant liquid to circulate in box board inside, thereby dispel the heat and cool down the battery effectively, ensure that the battery normally works between its operating temperature.
The energy-absorbing box body 3 is internally provided with six battery arrangement clamping grooves, the outer side of the energy-absorbing box body 3 is a carbon fiber heat absorbing plate, the internal clamping groove is formed by enclosing an aluminum alloy heat conducting plate, and the upper cover plate of the energy-absorbing box is also made of aluminum alloy. The battery arranging clamping groove corresponds to the groove 6; the 13-cell structure of the three-dimensional structure material with the zero Poisson ratio is a snake-shaped ring-type cell structure, the snake-shaped ring-type cell structure is a centrosymmetric structure, each snake-shaped ring-type cell consists of four 1/4 circular arcs, two semicircular arcs and four transverse edges, the radius of the four 1/4 circular arcs is the same, the radius of the two semicircular arcs is the same, the length of the four transverse edges is the same, and the length a of the snake-shaped ring-type cell is =12mm-12.5 mm. Each three-dimensional structure unit is formed by crossing two snake-shaped ring-shaped cellular structures at 90 degrees, and then a three-dimensional overall structure of the material with the zero Poisson's ratio is formed by the arrays of the structure units in the X direction and the Y direction and is filled in the energy absorption box.
Has the advantages that: the invention provides an electric vehicle battery box based on a zero-Poisson-ratio material, which adopts a snakelike ring type cellular structure of the zero-Poisson-ratio material, wherein each three-dimensional structure unit is formed by crossing two snakelike ring type cellular structures at a central axis in an angle of 90 degrees, and then a three-dimensional overall structure of the zero-Poisson-ratio material is formed by arrays of the structure units in the X direction and the Y direction and is filled in an energy absorption box; the snakelike ring-type zero-Poisson ratio material is better than the traditional material in the aspects of energy absorption and shock absorption, and the mechanical property that the strain is zero in the direction perpendicular to a loaded surface can better relieve the damage and the influence of an automobile on a battery when the automobile is impacted. The snakelike ring type zero Poisson ratio material cells are easy to manufacture, the process is simple, aluminum alloy materials are mostly adopted, the manufacturing cost is relatively low, and the weight is lighter; and the battery box upper and lower apron all designs the arrangement draw-in groove of battery module, can install the battery module more conveniently and place.
Drawings
FIG. 1 is a diagram of a battery box assembly;
FIG. 2 is a graph of a serpentine ring cell profile parameter comparison;
FIG. 3 is a diagram of a serpentine ring monolithic cell;
FIG. 4 is a basic three-dimensional structural diagram of a zero Poisson ratio material filling structure;
FIG. 5 is a filling view of the interior of the energy absorber box;
in the figure, 1 is an upper cover plate, 2 is a screw, 3 is an energy absorption box body, 4 is a box body plate a, 5 is a box body plate b, 6 is a groove, 7 is a water inlet, 8 is a nut, 9 is a water outlet, 10 is a lower bottom plate, 11 is an aluminum alloy heat conducting plate, 12 is a carbon fiber heat absorbing plate, 13 is a zero poisson's ratio three-dimensional structure material, 14 is a threaded hole, 15 is an energy absorption box upper cover plate, 16 is an inclined short side plate, and 17 is a water channel.
Detailed Description
The invention is described in detail below with reference to the following figures and specific examples:
example 1
As shown in fig. 1, an electric vehicle battery box based on a zero poisson's ratio material comprises: the energy-absorbing box comprises an upper cover plate 1, an energy-absorbing box body 3, a box body plate a4, a box body plate b5 and a lower bottom plate 10; the upper cover plate 1, the two box body plates a4, the two box body plates b5 and the lower bottom plate 10 are assembled into a box body, and the energy-absorbing box body 3 is positioned in the box body; the energy absorption box body 3 comprises an aluminum alloy heat conduction plate 11, a carbon fiber heat absorption plate 12, a zero Poisson ratio three-dimensional structure material 13 and an energy absorption box upper cover plate, wherein the aluminum alloy heat conduction plate 11 is tightly attached to the battery body, the carbon fiber heat absorption plate 12 is tightly attached to the inner walls of a box body plate a4 and a box body plate b5, and the zero Poisson ratio three-dimensional structure material 13 is filled between the aluminum alloy heat conduction plate 11 and the carbon fiber heat absorption plate 12.
In the structure, the upper cover plate 1 and the lower base plate 10 are both provided with the grooves 6 matched with the batteries, so that the batteries are convenient to fix and install, the peripheries of the upper cover plate 1 and the lower base plate 10 are both provided with the threaded holes 14 which penetrate through the upper cover plate 1 and the lower base plate 10 and are aligned with the threaded holes 14 on the box body plate a4 and the box body plate b5, the upper cover plate 1 and the lower base plate 10 are assembled and matched with the box body plate a4 and the box body plate b5 through the screws 2, and the rubber gaskets are added in the middle; the lower base plate 10 is designed with a flange and a threaded hole 14, so that the lower base plate 10 can be conveniently installed on a vehicle body through the screw 2.
Box board a4, box board b5 both sides design has slope short-side board 16, and all design has screw hole 14, realize two box board a4 through screw 2 and nut 8, the installation of two box board b5, and the gasket is installed to cooperation department, box board a4 and the inside water course 17 that has designed respectively of box board b5, the outside design has water inlet 7 and delivery port 9, water inlet 7 and delivery port 9 are located the diagonal position in the box outside, make things convenient for the coolant liquid to circulate in box board inside, thereby dispel the heat and cool down the battery effectively, ensure that the battery normally works between its operating temperature.
The energy-absorbing box body 3 is internally provided with six battery arrangement clamping grooves, the outer side of the energy-absorbing box body 3 is a carbon fiber heat absorbing plate, the internal clamping groove is formed by enclosing an aluminum alloy heat conducting plate, and the upper cover plate of the energy-absorbing box is also made of aluminum alloy. The battery arranging clamping groove corresponds to the groove 6; the three-dimensional structure material with the zero poisson ratio 13 cellular structure is a snake-shaped ring-shaped cellular structure, as shown in fig. 4, the snake-shaped ring-shaped cellular structure is a central symmetrical structure, each snake-shaped ring-shaped cellular structure is composed of four 1/4 circular arcs, two semicircular arcs and four transverse edges, wherein the radius of the four 1/4 circular arcs is the same, the radius of the two semicircular arcs is the same, the length of the four transverse edges is the same, each three-dimensional structure unit is composed of two snake-shaped ring-shaped cellular structures which are crossed by 90 degrees, and then the three-dimensional overall structure of the material with the zero poisson ratio is formed by arrays of the structural units in the X direction and the Y direction and is filled in the energy absorption box.
As shown in fig. 2, the contour curve of the serpentine ring-shaped zero poisson's ratio cell 1/4 corresponds to design parameters of a =12mm length, b =2mm length, two arc radii R1=2mm length, R2=1mm length, wall thickness t of each component is 1mm length, and height h is 1.5mm length.
The battery arrangement clamping groove is formed in the box body, and six battery modules can be placed in each box body. The wall thickness of the clamping groove is set to be 8mm, the energy absorption box around the battery is composed of an aluminum alloy heat conduction plate, a carbon fiber heat absorption plate and a zero Poisson ratio filling material, the thickness t1 of the aluminum alloy heat conduction plate is designed to be 5mm, and the carbon fiber heat absorption plate is designed to be 10 mm. The design parameters of the battery box body are strictly designed according to the national standard, and the material is aluminum alloy.
Example 2
As shown in fig. 1, an electric vehicle battery box based on a zero poisson's ratio material comprises: the energy-absorbing box comprises an upper cover plate 1, an energy-absorbing box body 3, a box body plate a4, a box body plate b5 and a lower bottom plate 10; the upper cover plate 1, the two box body plates a4, the two box body plates b5 and the lower bottom plate 10 are assembled into a box body, and the energy-absorbing box body 3 is positioned in the box body; the energy absorption box body 3 comprises an aluminum alloy heat conduction plate 11, a carbon fiber heat absorption plate 12, a zero Poisson ratio three-dimensional structure material 13 and an energy absorption box upper cover plate, wherein the aluminum alloy heat conduction plate 11 is tightly attached to the battery body, the carbon fiber heat absorption plate 12 is tightly attached to the inner walls of a box body plate a4 and a box body plate b5, and the zero Poisson ratio three-dimensional structure material 13 is filled between the aluminum alloy heat conduction plate 11 and the carbon fiber heat absorption plate 12.
In the structure, the upper cover plate 1 and the lower base plate 10 are both provided with the grooves 6 matched with the batteries, so that the batteries are convenient to fix and install, the peripheries of the upper cover plate 1 and the lower base plate 10 are both provided with the threaded holes 14 which penetrate through the upper cover plate 1 and the lower base plate 10 and are aligned with the threaded holes 14 on the box body plate a4 and the box body plate b5, the upper cover plate 1 and the lower base plate 10 are assembled and matched with the box body plate a4 and the box body plate b5 through the screws 2, and the rubber gaskets are added in the middle; the lower base plate 10 is designed with a flange and a threaded hole 14, so that the lower base plate 10 can be conveniently installed on a vehicle body through the screw 2.
Box board a4, box board b5 both sides design has slope short-side board 16, and all design has screw hole 14, realize two box board a4 through screw 2 and nut 8, the installation of two box board b5, and the gasket is installed to cooperation department, box board a4 and the inside water course 17 that has designed respectively of box board b5, the outside design has water inlet 7 and delivery port 9, water inlet 7 and delivery port 9 are located the diagonal position in the box outside, make things convenient for the coolant liquid to circulate in box board inside, thereby dispel the heat and cool down the battery effectively, ensure that the battery normally works between its operating temperature.
The energy-absorbing box body 3 is internally provided with six battery arrangement clamping grooves, the outer side of the energy-absorbing box body 3 is a carbon fiber heat absorbing plate, the internal clamping groove is formed by enclosing an aluminum alloy heat conducting plate, and the upper cover plate of the energy-absorbing box is also made of aluminum alloy. The battery arranging clamping groove corresponds to the groove 6; the three-dimensional structure material with the zero poisson ratio 13 cellular structure is a snake-shaped ring-shaped cellular structure, as shown in fig. 4, the snake-shaped ring-shaped cellular structure is a central symmetrical structure, each snake-shaped ring-shaped cellular structure is composed of four 1/4 circular arcs, two semicircular arcs and four transverse edges, wherein the radius of the four 1/4 circular arcs is the same, the radius of the two semicircular arcs is the same, the length of the four transverse edges is the same, each three-dimensional structure unit is composed of two snake-shaped ring-shaped cellular structures which are crossed by 90 degrees, and then the three-dimensional overall structure of the material with the zero poisson ratio is formed by arrays of the structural units in the X direction and the Y direction and is filled in the energy absorption box.
As shown in fig. 2, the contour curve of the serpentine ring-shaped zero poisson's ratio cell 1/4 corresponds to design parameters of a =12.5mm in length, b =2mm, two arc radii R1=2mm, R2=1mm, the wall thickness t of each component is 1mm, and the height h is 1.5 mm.
The battery arrangement clamping groove is formed in the box body, and six battery modules can be placed in each box body. The wall thickness of the clamping groove is set to be 8mm, the energy absorption box around the battery is composed of an aluminum alloy heat conduction plate, a carbon fiber heat absorption plate and a zero Poisson ratio filling material, the thickness t1 of the aluminum alloy heat conduction plate is designed to be 5mm, and the carbon fiber heat absorption plate is designed to be 10 mm. The design parameters of the battery box body are strictly designed according to the national standard, and the material is aluminum alloy.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An electric vehicle battery box based on a zero Poisson ratio material is characterized by comprising an upper cover plate (1), an energy absorption box body (3), a box body plate a (4), a box body plate b (5) and a lower bottom plate (10); the energy absorption box comprises an upper cover plate (1), two box body plates a (4), two box body plates b (5) and a lower bottom plate (10), wherein the upper cover plate, the two box body plates a (4), the two box body plates b (5) and the lower bottom plate (10) are assembled into a box body, and an energy absorption box body (3) is positioned in the box body; the energy absorption box body (3) comprises an aluminum alloy heat conduction plate (11), a carbon fiber heat absorption plate (12), a zero Poisson ratio three-dimensional structure material (13) and an energy absorption box upper cover plate (15), the aluminum alloy heat conduction plate (11) is tightly attached to the battery body, the carbon fiber heat absorption plate (12) is tightly attached to the inner walls of a box body plate a (4) and a box body plate b (5), and the zero Poisson ratio three-dimensional structure material (13) is filled between the aluminum alloy heat conduction plate (11) and the carbon fiber heat absorption plate (12); the cellular structure of the zero-Poisson ratio three-dimensional structure material (13) is a snake-shaped ring-shaped cellular structure, the snake-shaped ring-shaped cellular structure is a central symmetrical structure, each snake-shaped ring-shaped cellular structure consists of four 1/4 circular arcs, two semicircular arcs and four transverse edges, each three-dimensional structure unit consists of two snake-shaped ring-shaped cellular structures which are crossed by 90 degrees, and then the three-dimensional overall structure of the zero-Poisson ratio material is formed by the arrays of the structure units in the X direction and the Y direction and is filled in the energy absorption box.
2. The zero-poisson's ratio material-based electric vehicle battery box of claim 1, wherein the four 1/4 circular arc radii are the same, the two semi-circular arc radii are the same, the four transverse edges are the same, and the serpentine ring cell length a =12mm-12.5 mm.
3. The battery box of the electric vehicle based on the zero Poisson ratio material as claimed in claim 1, wherein six battery mounting slots are arranged in the energy absorption box body (3), a carbon fiber heat absorption plate is arranged on the outer side of the energy absorption box body (3), the inner slots are surrounded by an aluminum alloy heat conduction plate, an upper cover plate (15) of the energy absorption box is also made of aluminum alloy, and the battery mounting slots correspond to the grooves (6).
4. The battery box of the electric vehicle based on the zero-Poisson ratio material as claimed in claim 1, wherein the upper cover plate (1) and the lower base plate (10) are both designed with grooves (6) matched with the battery, threaded holes (14) penetrating through the upper cover plate (1) and the lower base plate (10) are designed on the periphery and are aligned with the threaded holes (14) on the box body plate a (4) and the box body plate b (5), and the assembly and matching of the upper cover plate (1) and the lower base plate (10) with the box body plate a (4) and the box body plate b (5) are realized through screws (2).
5. The battery box of electric vehicle based on zero Poisson's ratio material as claimed in claim 4, characterized in that rubber gaskets are added between the upper cover plate (1), the lower base plate (10) and the box body plates a (4) and b (5).
6. The battery box of electric vehicle based on zero Poisson ratio material according to claim 1 or 4, characterized in that the lower base plate (10) is designed with a flange and a threaded hole (14) thereon, so that the lower base plate (10) is mounted on the vehicle body by a screw (2).
7. The battery box of the electric vehicle based on the zero-Poisson ratio material as claimed in claim 1, wherein the two sides of the box body plates a (4) and b (5) are designed with inclined short side plates (16) and threaded holes (14), the two box body plates a (4) and b (5) are installed through screws (2) and nuts (8), and the matching parts are installed with gaskets.
8. The battery box of electric vehicle based on zero Poisson ratio material as claimed in claim 1, wherein the box body plate a (4) and the box body plate b (5) are respectively designed with water channels (17) inside, and the outer sides of the box body plate a (4) and the box body plate b (5) are designed with a water inlet (7) and a water outlet (9).
9. Electric vehicle battery box based on zero poisson's ratio material according to claim 1, characterised by that the water inlet (7) and the water outlet (9) are located diagonally outside the box.
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