CN109638194B - Partition type splicable section container - Google Patents
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- CN109638194B CN109638194B CN201811588149.0A CN201811588149A CN109638194B CN 109638194 B CN109638194 B CN 109638194B CN 201811588149 A CN201811588149 A CN 201811588149A CN 109638194 B CN109638194 B CN 109638194B
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- 238000005192 partition Methods 0.000 title claims abstract description 111
- 230000001154 acute effect Effects 0.000 claims description 36
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 description 27
- 238000013461 design Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000004321 preservation Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
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- 239000011229 interlayer Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
-
- 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
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Clamps And Clips (AREA)
- Stackable Containers (AREA)
Abstract
Partition formula section bar container that can splice, including casing and the last casing of installing on this casing down, the casing includes down: a ring beam; the partition type splicing section structure arranged in the ring beam comprises four partition type section parts and at least one section part which is used for connecting the four partition type section parts in a buckling mode. The cross section of the partition type section part comprises: a main body; the left and right clamping bodies are L-shaped; the horizontal segment of the body of left block and the horizontal segment of the body of right block extend in opposite directions and are used for the cross section of the section bar part of connection to include: a connecting portion; a left buckling part which is provided with an L-shaped upper left buckling body and a lower left buckling body; the right buckling part is provided with an L-shaped upper right buckling body and a right lower buckling body, the horizontal section of the upper left buckling body and the horizontal section of the upper right buckling body extend in opposite directions, and a gap is formed between the horizontal section of the lower left buckling body and the horizontal section of the lower right buckling body, and the gap is formed between the horizontal section of the lower left buckling body and the horizontal section of the lower right buckling body.
Description
Technical Field
The invention relates to a shell of a battery pack of an electric automobile, belonging to the field of mechanical structures.
Background
A plurality of power battery packs (battery packs) are used as a driving energy source in an electric vehicle. Generally, one battery pack includes a plurality of battery modules, and the plurality of modules are put into a housing. And the module is a separate assembly including a frame in which the cell cartridge (including one or more elementary cells, providing elementary voltage, such as 3.6V for lithium/manganese dioxide cells), a plurality of cell cartridges, and a management circuit are placed.
Because the primary batteries in the battery cell box inevitably generate heat and heat in the charging and discharging processes, particularly the temperature of the battery cell box with a plurality of primary batteries is particularly obvious in summer, and therefore, the battery cell box needs to be cooled by air cooling or water cooling and the like.
In summer or high temperature weather, because the battery package generally loads under vehicle chassis closely each other and leads to heat radiation, heat-conducting degree of difficulty aggravation, the heat in the battery package is difficult to distribute, influences battery cooling rate. Although the holes can be arranged for heat dissipation, the waterproof performance of the battery pack must reach IP67 for electrical safety, which limits the number of holes not to be too many.
In winter or in low temperature weather, because the primary battery in the battery package can normally work only by keeping a certain temperature, heat preservation or even hot air or heating up by heating water in a water cooling pipeline is needed, and at the moment, the traditional metal shell has a higher heat dissipation speed and is not beneficial to heat preservation.
The strength is reduced by replacing the heat transfer material with a slow-acting plastic or interlayer material. Even if a special double-layer shell with a heat-preservation interlayer is designed, the automobile battery pack is limited by the overall design of an automobile, so that the design is difficult, the appearance is often complex, the subsequent die sinking manufacturing period is long, and the cost is high.
Above, the battery pack shell requires fast heat dissipation in a high-temperature environment and heat preservation as far as possible in a low-temperature environment, and also requires a simple structure and certain strength.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a partitioned type splittable container which can be used as an outer case of a battery pack for an electric vehicle.
The invention provides a partition type spliced section container which is used as a shell of a power battery pack and is characterized by comprising a lower shell and an upper shell arranged on the lower shell,
wherein, lower casing includes:
a ring beam;
a splice plate arranged in the ring beam,
the splice plate comprises at least one partitioned splicable profile structure,
the partition type splicing section structure comprises four partition type section parts and at least one section part which is used for connecting the four partition type section parts in a buckling way,
the cross section of the partition type section part comprises:
a body in the shape of a strip;
the left clamping body is L-shaped, the vertical section of the left clamping body is connected to the left end part of the main body, the horizontal section of the left clamping body is arranged along the direction opposite to the extending direction of the main body, and the vertical section and the horizontal section form a first included angle;
the right clamping body is L-shaped, the vertical section of the right clamping body is connected to the right end part of the main body, the horizontal section is arranged along the direction opposite to the extending direction of the main body, and the vertical section and the horizontal section form a first included angle;
the horizontal section of the left clamping body and the horizontal section of the right clamping body extend oppositely, and a gap is arranged between the horizontal sections,
the cross section of the profile parts for joining comprises:
a connection portion in a long strip shape;
the left buckling part is provided with an upper left buckling body and a lower left buckling body which are arranged at the upper part and the lower part of the left end of the connecting part, the upper left buckling body and the lower left buckling body are both L-shaped, the vertical section of the upper left buckling body and the lower left buckling body are connected to the left end part of the connecting part, the horizontal section is arranged along the opposite direction of the extending direction of the connecting part, and the vertical section and the horizontal section have an included angle;
a right buckling part which is provided with a right upper buckling body and a right lower buckling body which are arranged at the right end of the connecting part, wherein the right upper buckling body and the right lower buckling body are both L-shaped, the vertical section of the right upper buckling body is connected with the end part of the connecting part, the horizontal section is arranged along the opposite direction of the extending direction of the connecting part, and the vertical section and the horizontal section have an included angle,
the horizontal section of the upper left fastener and the horizontal section of the upper right fastener extend oppositely, and a gap is arranged between the horizontal sections,
the horizontal section of the left lower buckling body and the horizontal section of the right lower buckling body extend oppositely, and a gap is arranged between the horizontal sections,
the horizontal section of the left clamping body or the right clamping body of the first partition type section bar part is inserted into the [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the left upper clamping body and is in clearance fit with the horizontal section of the right upper clamping body, and can slide along the stretching direction of the section bar part, the horizontal section of the left upper clamping body is inserted into the [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the first partition type section bar part and is in clearance fit with the horizontal section, the vertical section and the main body, and can slide along the stretching direction of the,
the left clamping body or the right clamping body of the second partition type section bar part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the left lower clamping body and is in clearance fit with the horizontal section of the left lower clamping body to slide along the stretching direction of the section bar part, the horizontal section of the left lower buckling body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the second partition type section bar part and is in clearance fit with the horizontal section, the vertical section and the main body to slide along the stretching direction of the section bar part,
the left clamping body or the right clamping body of the third partition type section bar part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the upper right clamping body in a clearance fit manner and can slide along the stretching direction of the section bar part, the horizontal section of the upper right clamping body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the third partition type section bar part in a clearance fit manner and can slide along the stretching direction of the section bar part,
the left clamping body or the right clamping body of the fourth partition type section bar part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the right lower clamping body in a clearance fit manner and can slide along the stretching direction of the section bar part, the horizontal section of the right lower buckling body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body in a clearance fit manner and can slide along the stretching direction of the section bar part,
the sum of the thicknesses of the left clamping body or the vertical section of the right clamping body of the first partition type section part and the left clamping body or the vertical section of the right clamping body of the third partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the upper left fastener and the horizontal section of the upper right fastener, so that the first partition type section part and the third partition type section part can slide along the stretching direction of the section parts in a clearance fit manner after being inserted into the gap,
the sum of the thicknesses of the left clamping body or the right clamping body of the second partition type section part and the left clamping body or the right clamping body of the fourth partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the left lower buckling body and the horizontal section of the right lower buckling body, so that the second partition type section part and the fourth partition type section part can slide along the stretching direction of the section parts in a clearance fit mode after being inserted into the gap.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein,
the thickness a of the connecting part, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationship: a is more than or equal to b1 more than or equal to c1,
the thickness a of the connecting part, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a is more than or equal to b2 more than or equal to c2,
the thickness a of the connecting part, the thickness b3 of the vertical section of the upper right fastener and the thickness c3 of the horizontal section of the upper right fastener have the following relations: a is more than or equal to b3 more than or equal to c3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a is more than or equal to b4 more than or equal to c4,
the thickness A of the main body is greater than the thickness A1 of the vertical section of the left snap body, while the thickness B1 of the vertical section of the left snap body is greater than the thickness C1 of the horizontal section of the left snap body,
the thickness A of the main body is greater than the thickness B2 of the vertical section of the right snap body, and the thickness B2 of the vertical section of the right snap body is greater than the thickness C2 of the horizontal section of the right snap body.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein,
the vertical section of the upper left fastener and the horizontal section of the upper left fastener form a right angle or an acute angle,
the vertical section of the left lower buckling body and the horizontal section of the left lower buckling body form a right angle or an acute angle,
the vertical section of the upper right fastener and the horizontal section of the upper right fastener form a right angle or an acute angle,
the vertical section of the right lower buckling body and the horizontal section of the right lower buckling body form a right angle or an acute angle,
the vertical section of the left snap body and the horizontal section of the left snap body form a right angle or an acute angle,
the vertical section of the right clamping body and the horizontal section of the right clamping body form a right angle or an acute angle.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein,
the vertical section of the upper left fastener and the connecting part form a right angle or an acute angle,
the included angle between the vertical section of the left lower buckling body and the connecting part is a right angle or an acute angle,
the vertical section of the upper right fastener and the connecting part form a right angle or an acute angle,
the included angle between the vertical section of the right lower buckling body and the connecting part is a right angle or an acute angle,
the vertical section of the left snap body forms a right angle or an acute angle with the main body,
the vertical section of the right clamping body forms a right angle or an acute angle with the main body.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein,
the thickness a of the connecting part, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationship: a is more than or equal to b1 more than or equal to c1,
the thickness a of the connecting part, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a is more than or equal to b2 more than or equal to c2,
the thickness a of the connecting part, the thickness b3 of the vertical section of the upper right fastener and the thickness c3 of the horizontal section of the upper right fastener have the following relations: a is more than or equal to b3 more than or equal to c3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a is more than or equal to b4 more than or equal to c4,
the thickness a of the main body, the thickness B1 of the vertical section of the left snap body, and the thickness C1 of the horizontal section of the left snap body have the following relationships: a is 1.5-2.5B1, B1 is 1.5-2.5C1,
the thickness A of the main body, the thickness B2 of the vertical section of the right snap body, and the thickness C2 of the horizontal section of the right snap body have the following relationship: a is 1.5-2.5B2, B2 is 1.5-2.5C 2.
The partition type splicable section container provided by the invention can also have the following characteristics:
the length of the gap between the horizontal section of the upper left fastener and the horizontal section of the upper right fastener is 50-65% of the length of the connecting part,
the length of the gap between the horizontal section of the left lower fastener and the horizontal section of the right lower fastener is 50-65% of the length of the connecting part,
the length of the gap between the horizontal section of the left engaging body and the horizontal section of the right engaging body is 65% or more but less than 100% of the length of the main body.
The partition type splicable section container provided by the invention can also have the following characteristics:
the connecting part is rectangular, the length-width ratio is greater than or equal to 2,
the left buckling part and the right buckling part are arranged in bilateral symmetry,
the upper left fastener and the lower left fastener are arranged symmetrically up and down,
the right upper buckling body and the right lower buckling body are arranged up and down symmetrically,
the main body is rectangular, the length-width ratio is greater than or equal to 2,
the left clamping body and the right clamping body are arranged in bilateral symmetry.
The partition type splicable section container provided by the invention can also have the following characteristics:
the vertical section of the upper left fastener is vertical to the connecting part, the horizontal section is vertical to the vertical section,
the vertical section of the left lower fastener is vertical to the connecting part, the horizontal section is vertical to the vertical section,
the vertical section of the upper right fastener is vertical to the main body, the horizontal section is vertical to the vertical section,
the vertical section of the right lower fastener is vertical to the main body, the horizontal section is vertical to the vertical section,
the vertical section of the left clamping body is vertical to the main body, the horizontal section of the left clamping body is vertical to the vertical section,
the vertical section of the right clamping body is vertical to the main body, and the horizontal section of the right clamping body is vertical to the vertical section.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein the stretching length of the sectional material parts used for connection is less than or equal to the stretching length of the partition type sectional material parts,
when the drawn length of the profile parts for connection is less than or equal to the drawn length of the partition profile part, a profile part for connection is provided and slidably mounted to the middle of the partition profile part, or
Two profile parts for connection are provided and are mounted to the two ends of the partition profile part in a sliding manner.
The partition type splicable section container provided by the invention can also have the following characteristics:
wherein, the upper shell is connected on the ring beam through a bolt.
Action and Effect of the invention
According to the partitioned splicable sectional material container provided by the invention, because the lower shell wall part of the container uses the splicing plates of the partitioned splicable sectional material structure, the profile structure comprises four partition type profile parts and at least one profile part which is used for connecting the four partition type profiles in a buckling way, the left and right clamping bodies of the four partition type profiles can be clamped into the profile parts which are provided with four buckling bodies and are used for connecting, so that the upper and lower partition type sectional materials and the sectional material parts for connection which are arranged in pairs and one above the other can enclose a closed cavity, and after the cavity contains air, can be insulated by the cavity at low temperature and can be conducted and radiated by the solid body of the section bar at high temperature, the lower bottom wall of the container can be designed into a sandwich structure due to the design, and the heat-insulating and heat-dissipating container has the effects of heat preservation in a low-temperature environment and heat dissipation acceleration in a high-temperature environment.
And because the spliced section bar structure is adopted, the design and the manufacture can be rapidly carried out, the structure is simple, the design is easy, and the cost for mass manufacture is low.
Moreover, since most of the manufactured structure is a cavity, the weight can be reduced under the condition of satisfying enough mechanical strength.
Furthermore, the left and right clamping bodies and the four buckling bodies are mutually clamped through the [ shape cavity and are mutually installed through clearance fit, so that the left and right clamping bodies can slide along the stretching direction of the section part, and the structural design facilitates the installation and the disassembly.
Furthermore, because the clearance between the horizontal segment of the lock body of joining profile satisfies and lets the vertical section of the block body of two partition type section bars can clearance fit fix, such design not only makes the connection more firm: two partition type sectional materials clamped by the connecting sectional materials are opposite to each other, the tilting cannot occur, and the installation and the disassembly are also more convenient.
Drawings
Fig. 1 is a schematic structural view of a battery pack in an embodiment of the invention;
fig. 2 is a schematic structural view of a lower case in an embodiment of the present invention;
FIG. 3 is a cut-away schematic view of the lower housing of FIG. 2;
FIG. 4 is a schematic illustration of a connection of a partitioned spliceable profile structure in an embodiment of the invention;
FIG. 5 is a schematic structural view of a partition profile in an embodiment of the invention; and
fig. 6 is a schematic structural view of a profile for connection in an embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments specifically describe the partitioned type splittable sectional material structure of the invention with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a battery pack in an embodiment of the present invention.
Fig. 2 is a schematic structural view of the lower case in the embodiment of the present invention.
Fig. 3 is a cut-away schematic view of the lower housing of fig. 2.
Example 1
As shown in fig. 1, the partitioned splittable profile container, which is a casing of the power battery pack, includes a lower case K and an upper case S mounted on the lower case.
The space between the upper shell and the lower shell is used for installing various parts L of the battery pack, the parts L comprise a battery protection module BDU, a standard part, a high-voltage copper bar, a manual maintenance switch MSD, a water cooling plate assembly, a battery module, an explosion-proof valve arranged on the battery module, a battery management system MBS and a low-voltage wire harness connected with the battery protection module BDU, the battery module and the battery management system MBS, and a sealing gasket is arranged between the upper shell K and the lower shell to compress and seal.
As shown in fig. 2 and 3, the lower case includes a ring beam Q, a splice plate P and a solid bar beam M for reinforcement provided in the ring beam, and various mounting lugs R provided on the ring beam Q for mounting.
The splice plate includes at least one partition type splittable profile structure, as shown in fig. 3, a plurality of partition type splittable profile structures are connected and combined with each other to obtain a splice plate with a corresponding shape and size.
Fig. 4 is a schematic connection diagram of a partitioned splittable profile structure in an embodiment of the invention.
Fig. 5 is a schematic structural view of a partition type profile in an embodiment of the present invention.
Fig. 6 is a schematic structural view of a profile for connection in an embodiment of the present invention.
As shown in fig. 4, the partition type splicable sectional material structure comprises six partition type sectional material parts a and at least one connecting sectional material part B for connecting the six partition type sectional materials in a buckling manner.
As shown in fig. 5, the block-type profile part a is obtained by cutting a profile obtained by stretching a cross section of a main body 10, a left engaging body 20, and a right engaging body 30:
the main body 10 is elongated.
The left clamping body 20 is in an L shape, a vertical section 21 of the left clamping body is connected to the left end of the main body, a horizontal section is arranged along the opposite direction of the extending direction of the main body, and the vertical section and the horizontal section 22 have a first included angle.
The right clamping body 30 is in an L shape, a vertical section 31 of the right clamping body is connected to the right end portion of the same side of the main body, a horizontal section is arranged along the opposite direction of the extending direction of the main body, and the vertical section and the horizontal section 32 have a first included angle.
The horizontal segment of the left clamping body and the horizontal segment of the right clamping body extend oppositely, and a gap is arranged between the horizontal segments.
As shown in fig. 6, the sectional material part B for connection is obtained by cutting a sectional material stretched in a cross section having:
a connecting portion 40 having an elongated shape;
a left fastening part Z having an upper left fastener 50 and a lower left fastener 60 disposed at the upper and lower left ends of the connecting part, the upper left fastener and the lower left fastener being L-shaped, a vertical section 51(61) thereof being connected to the left end of the connecting part, a horizontal section 52(62) thereof being disposed along the direction opposite to the extending direction of the connecting part, the vertical section and the horizontal section having an included angle;
and the right buckling part Y is provided with an upper right buckling body 70 and a lower right buckling body 80 which are arranged at the right end of the connecting part, the upper right buckling body and the lower right buckling body are both L-shaped, the vertical section 71(81) of the upper right buckling body is connected to the end part of the connecting part, the horizontal section 72(82) of the upper right buckling body is arranged along the opposite direction of the extending direction of the connecting part, and the vertical section and the horizontal section have an included angle.
The horizontal section of the upper left fastener and the horizontal section of the upper right fastener extend oppositely with a gap therebetween, and the horizontal section of the lower left fastener and the horizontal section of the lower right fastener extend oppositely with a gap therebetween.
The following describes how 4 partition type section bar parts are buckled and connected with 1 section bar part for connection with the attached drawings 4, 5 and 6.
The horizontal section of the left clamping body or the right clamping body of the first partition type section part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the upper left clamping body and can slide along the stretching direction of the section part in a clearance fit mode, and the horizontal section of the upper left clamping body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the first partition type section part and can slide along the stretching direction of the section part in a clearance fit mode.
The horizontal section of the left clamping body or the right clamping body of the second partition type section part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the left lower clamping body and can slide along the stretching direction of the section part in a clearance fit mode, and the horizontal section of the left lower buckling body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the second partition type section part and can slide along the stretching direction of the section part in a clearance fit mode.
The left clamping body or the right clamping body of the third partition type section part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the upper right clamping body, and can slide along the stretching direction of the section part in a clearance fit mode, and the horizontal section of the upper right clamping body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the third partition type section part, and can slide along the stretching direction of the section part in a clearance fit mode.
The horizontal section of the left clamping body or the right clamping body of the fourth partition type section part is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the connecting part of the right lower clamping body, and is in clearance fit with the horizontal section, the vertical section and the connecting part, and the horizontal section of the right lower clamping body is inserted into a [ shape cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the fourth partition type section part, and is in clearance fit with the horizontal section, the vertical section and the main body, and.
The sum of the thicknesses of the left clamping body or the vertical section of the right clamping body of the first partition type section part and the left clamping body or the vertical section of the right clamping body of the third partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the upper left buckling body and the horizontal section of the upper right buckling body, so that the first partition type section part and the third partition type section part can slide along the stretching direction of the section parts in a clearance fit mode after being inserted into the gap.
The sum of the thicknesses of the left clamping body or the right clamping body of the second partition type section part and the left clamping body or the right clamping body of the fourth partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the left lower buckling body and the horizontal section of the right lower buckling body, so that the second partition type section part and the fourth partition type section part can slide along the stretching direction of the section parts in a clearance fit mode after being inserted into the gap.
Preferably, the clearance fit is preferably between 50-100 um.
Example 2
Preferably, on the basis of example 1, experiments and computer calculation simulation show that, in the case of using homogeneous aluminum alloy, iron alloy or copper alloy or even engineering plastic, in order to have better mechanical structural strength, the following conditions are satisfied when designing the profile, and the effect is better:
in the case of a partition-type profile,
the thickness a of the main body is greater than the thickness B1 of the vertical section of the left snap body, while the thickness B1 of the vertical section of the left snap body is greater than the thickness C1 of the horizontal section of the left snap body, the thickness a of the main body is greater than the thickness B2 of the vertical section of the right snap body, while the thickness B2 of the vertical section of the right snap body is greater than the thickness C2 of the horizontal section of the right snap body.
For the profile used for the connection, the thickness a of the connecting portion, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationships: a is more than or equal to b1 more than or equal to c1,
the thickness a of the connecting part, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a is more than or equal to b2 more than or equal to c2,
the thickness a of the connecting part, the thickness b3 of the vertical section of the upper right fastener and the thickness c3 of the horizontal section of the upper right fastener have the following relations: a is more than or equal to b3 more than or equal to c3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a is more than or equal to b4 more than or equal to c 4.
Or in the further preferred form as well,
the thickness a of the main body, the thickness B1 of the vertical section of the left snap body, and the thickness C1 of the horizontal section of the left snap body have the following relationships: a is 1.5-2.5B1, B1 is 1.5-2.5C1, and the thickness a of the main body, the thickness B2 of the vertical section of the right snap body, and the thickness C2 of the horizontal section of the right snap body have the following relationships: a is 1.5-2.5B2, B2 is 1.5-2.5C 2.
The thickness a of the connecting part, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationship: a-b 1-c 1,
the thickness a of the connecting part, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a-b 2-c 2,
the thickness a of the connecting part, the thickness b3 of the vertical section of the upper right fastener and the thickness c3 of the horizontal section of the upper right fastener have the following relations: a-b 3-c 3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a-b 4-c 4.
Example 3
On the basis of the embodiment 1 and/or 2, experiments and computer calculation simulation show that in the case of using homogeneous aluminum alloy, iron alloy or copper alloy or even engineering plastic, in order to obtain better connection strength when performing connection, the following conditions are satisfied when designing the section bar, and the effect is better:
for the partition type section bar, the length of a gap between the horizontal section of the left clamping body and the horizontal section of the right clamping body is more than 65% but less than 100% of the length of the main body;
for the section bar used for connection, the length of the gap between the horizontal section of the upper left fastener and the horizontal section of the upper right fastener is 50% -65% of the length of the connecting part, and the length of the gap between the horizontal section of the lower left fastener and the horizontal section of the lower right fastener is 50% -65% of the length of the connecting part.
Further, the main body is preferably rectangular and has an aspect ratio of 2 or more; preferably, the connecting portion has a rectangular shape and an aspect ratio of 2 or more.
EXAMPLE 4
Obviously, in the above-mentioned embodiment 1, 2, 3, to the wall formula section bar, the main part, vertical section, the three part of horizontal segment is the rectangle, to the section bar that is used for connecting, connecting portion, vertical section, the three part of horizontal segment is the rectangle, their three combined connection can form diversified colluding the form, wherein the main part of wall formula section bar, the contained angle between the vertical section, the contained angle between the horizontal segment, a connecting portion for the section bar of connecting, the contained angle between the vertical section, the contained angle between the horizontal segment can be arbitrary 0-180 degrees, in order to make better joint strength be convenient for subsequent design and the equipment of section bar structure simultaneously when connecting, it is better to satisfy following condition effect when designing these two section bars:
for the partition type section bar, an included angle formed by the vertical section of the left clamping body and the horizontal section of the left clamping body is a right angle or an acute angle, and an included angle formed by the vertical section of the right clamping body and the horizontal section of the right clamping body is a right angle or an acute angle;
and/or
The included angle of the vertical section of the left clamping body and the main body is a right angle or an acute angle, and the included angle of the vertical section of the right clamping body and the main body is a right angle or an acute angle.
Further, in order to splice to obtain a flat plate, the partition-type section bar is preferably designed as shown in fig. 1 and 2, that is:
the vertical section of the left clamping body and the horizontal section of the left clamping body form a right angle, namely, the vertical section of the right clamping body and the horizontal section of the right clamping body form a right angle, namely, the vertical section of the left clamping body and the horizontal section of the right clamping body are vertical; and is
The vertical section of the left clamping body is perpendicular to the included angle of the main body, namely the right angle, and the vertical section of the right clamping body is perpendicular to the included angle of the main body, namely the right angle.
Correspondingly, for the section bar for connection, the included angle between the vertical section of the upper left buckling body and the horizontal section of the upper left buckling body is a right angle or an acute angle,
the vertical section of the left lower buckling body and the horizontal section of the left lower buckling body form a right angle or an acute angle,
the vertical section of the upper right fastener and the horizontal section of the upper right fastener form a right angle or an acute angle,
the vertical section of the right lower buckling body and the horizontal section of the right lower buckling body form a right angle or an acute angle;
and/or
The vertical section of the upper left fastener and the connecting part form a right angle or an acute angle,
the included angle between the vertical section of the left lower buckling body and the connecting part is a right angle or an acute angle,
the vertical section of the upper right fastener and the connecting part form a right angle or an acute angle,
the included angle between the vertical section of the right lower buckling body and the connecting part is a right angle or an acute angle.
Further to obtain a flat panel for splicing, the section designed for joining is better as shown in fig. 1 and 3, namely:
the vertical section of the upper left buckling body is vertical to the connecting part and the horizontal section is vertical to the vertical section,
the vertical section of the left lower buckling body is vertical to the connecting part and the horizontal section is vertical to the vertical section,
the vertical section of the upper right fastener is vertical to the main body and the horizontal section is vertical to the vertical section,
the vertical section of the right lower fastener is vertical to the main body and the horizontal section is vertical to the vertical section.
Example 5
On the basis of the above embodiments 1 to 4, in order to facilitate the design and inspection of the die during drawing, it is preferable that the left engaging body and the right engaging body of the partition type section bar are arranged in bilateral symmetry; correspondingly, the profile for the connection is designed such that: the left buckling part and the right buckling part are arranged in a bilateral symmetry mode, the upper left buckling body and the lower left buckling body are arranged in an up-down symmetry mode, and the upper right buckling body and the lower right buckling body are arranged in an up-down symmetry mode.
Example 6
Obviously, in order to achieve higher mechanical strength and good heat dissipation effect, the profile of this embodiment may use other metals such as aluminum alloy, iron alloy or copper alloy, but considering the requirements of low cost, light weight and chemical corrosion resistance required in the design of the battery pack, the profile is preferably aluminum alloy, and is subjected to anodic oxidation treatment after being drawn and formed, and is more preferably aluminum alloy of Al6063 brand.
Since the surface of the sectional material may be scratched after the sliding of the sectional material is carried out by the mounting and dismounting for a plurality of times, in order to better carry out the mounting and dismounting, protect the surface and prolong the service life of the structure, the surface of the sectional material for connection can be coated with a plastic film with good sliding property, preferably a self-lubricating polytetrafluoroethylene film, and the thickness of the film is preferably 10-50 um.
Example 7
The stretched length of the profile parts for connection is less than or equal to the stretched length of the partition profile parts:
the above examples 1-6 were all designed based on the fact that the drawn length of the profile parts for joining is equal to the drawn length of the partition profile parts.
And when the stretched length of the profile parts for connection is smaller than the stretched length of the partition profile parts:
a profile part for connection may be provided and slidably mounted to the middle of the partition profile part.
Or preferably two profiled elements for connection are provided and are mounted slidably to both ends of the partition profiled element.
In the above case where the elongated length of the connecting section is smaller than the elongated length of the partition section, a gap may be left between the engaging bodies of the two partition sections, and the gap may be used to mount a fixing member or to mount and fix other components of the battery pack by forming a screw hole.
Example 8
As a specific connection manner, it is preferable that the upper case in the above embodiments 1 to 7 is connected to the ring beam by bolts.
Effects and effects of the embodiments
According to the partitioned splicable profile container provided by the embodiment, because the lower shell wall part of the container uses the splicing plates of the partitioned splicable profile structure, the profile structure comprises four partition type profile parts and at least one profile part which is used for connecting the four partition type profiles in a buckling way, the left and right clamping bodies of the four partition type profiles can be clamped into the profile parts which are provided with four buckling bodies and are used for connecting, so that the upper and lower partition type sectional materials and the sectional material parts for connection which are arranged in pairs and one above the other can enclose a closed cavity, and after the cavity contains air, can be insulated by the cavity at low temperature and can be conducted and radiated by the solid body of the section bar at high temperature, the lower bottom wall of the container can be designed into a sandwich structure due to the design, and the heat-insulating and heat-dissipating container has the effects of heat preservation in a low-temperature environment and heat dissipation acceleration in a high-temperature environment.
And because the spliced section bar structure is adopted, the design and the manufacture can be rapidly carried out, the structure is simple, the design is easy, and the cost for mass manufacture is low.
Moreover, since most of the manufactured structure is a cavity, the weight can be reduced under the condition of satisfying enough mechanical strength.
Furthermore, the left and right clamping bodies and the four buckling bodies are mutually clamped through the [ shape cavity and are mutually installed through clearance fit, so that the left and right clamping bodies can slide along the stretching direction of the section part, and the structural design facilitates the installation and the disassembly.
Furthermore, because the clearance between the horizontal segment of the lock body of joining profile satisfies and lets the vertical section of the block body of two partition type section bars can clearance fit fix, such design not only makes the connection more firm: two partition type sectional materials clamped by the connecting sectional materials are opposite to each other, the tilting cannot occur, and the installation and the disassembly are also more convenient.
Because the surface of the sectional material for connection is coated with a plastic film with good sliding property, preferably a self-lubricating polytetrafluoroethylene film, and the thickness of the film is preferably 10-50um, the design can not scratch the surface of the sectional material when the sectional material is mounted and dismounted for sliding, thereby protecting the surface, prolonging the service life of the structure and better dismounting and mounting.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. A partition type spliced section container used as a shell of a power battery pack is characterized by comprising a lower shell and an upper shell arranged on the lower shell,
wherein the lower case includes:
a ring beam;
a splice plate disposed in the ring beam,
the splice plate comprises at least one partitioned splicable profile structure,
the partition type splicing section structure comprises four partition type section parts and at least one section part which is used for connecting the four partition type section parts in a buckling way,
the cross section of the partition type profile part comprises:
a body in the shape of a strip;
the left clamping body is L-shaped, the vertical section of the left clamping body is connected to the left end part of the main body, the horizontal section of the left clamping body is arranged along the direction opposite to the extending direction of the main body, and the vertical section and the horizontal section form a first included angle;
the right clamping body is L-shaped, the vertical section of the right clamping body is connected to the right end part of the main body, the horizontal section is arranged along the direction opposite to the extending direction of the main body, and the vertical section and the horizontal section form a first included angle;
the horizontal section of the left clamping body and the horizontal section of the right clamping body extend oppositely, and a gap is arranged between the horizontal sections,
the cross section of the section parts for connection comprises:
a connection portion in a long strip shape;
the left buckling part is provided with an upper left buckling body and a lower left buckling body which are arranged at the upper part and the lower part of the left end of the connecting part, the upper left buckling body and the lower left buckling body are both L-shaped, the vertical section of the upper left buckling body and the lower left buckling body is connected to the left end part of the connecting part, the horizontal section is arranged along the opposite direction of the extending direction of the connecting part, and the vertical section and the horizontal section have an included angle;
a right buckling part which is provided with a right upper buckling body and a right lower buckling body which are arranged at the right end of the connecting part, wherein the right upper buckling body and the right lower buckling body are both L-shaped, the vertical section of the right upper buckling body is connected with the end part of the connecting part, the horizontal section is arranged along the opposite direction of the extending direction of the connecting part, and the vertical section and the horizontal section have an included angle,
the horizontal section of the upper left fastener and the horizontal section of the upper right fastener extend oppositely, and a gap is arranged between the horizontal sections,
the horizontal section of the left lower buckling body and the horizontal section of the right lower buckling body extend oppositely, and a gap is arranged between the horizontal sections,
the horizontal section of the left clamping body or the right clamping body of the first partition type section part is inserted into a [ shaped cavity formed by the horizontal section, the vertical section and the connecting part of the left upper clamping body and is in clearance fit with the horizontal section of the left upper clamping body, and can slide along the stretching direction of the section part, the horizontal section of the left upper clamping body is inserted into the horizontal section and the vertical section of the left clamping body or the right clamping body of the first partition type section part and is in clearance fit with the horizontal section and the vertical section of the right clamping body of the first partition type section part, and can slide along the stretching direction of the section part,
the horizontal section of the left clamping body or the right clamping body of the second partition type section part is inserted into a [ shaped cavity formed by the horizontal section, the vertical section and the connecting part of the left lower clamping body and is in clearance fit with the horizontal section of the right lower clamping body, and can slide along the stretching direction of the section part, the horizontal section of the left lower buckling body is inserted into the [ shaped cavity formed by the horizontal section, the vertical section and the main body of the left clamping body or the right clamping body of the second partition type section part and is in clearance fit with the horizontal section, the vertical section and the [ shaped cavity formed by the main body, and can slide along the stretching direction of the section part,
the horizontal section of the left clamping body or the right clamping body of the third partition type section part is inserted into a [ shaped cavity formed by the horizontal section, the vertical section and the connecting part of the upper right clamping body and is in clearance fit with the horizontal section of the upper right clamping body so as to slide along the stretching direction of the section part, the horizontal section of the upper right clamping body is inserted into the horizontal section and the vertical section of the left clamping body or the right clamping body of the third partition type section part and is in clearance fit with the horizontal section and the vertical section of the upper right clamping body of the third partition type section part and the [ shaped cavity formed by the main body so as to slide along the stretching direction of the,
the horizontal section of the left clamping body or the right clamping body of the fourth partition type section part is inserted into a [ shaped cavity formed by the horizontal section, the vertical section and the connecting part of the right lower clamping body and is in clearance fit with the horizontal section of the right lower clamping body to slide along the stretching direction of the section part, the horizontal section of the right lower buckling body is inserted into the horizontal section and the vertical section of the left clamping body or the right clamping body of the fourth partition type section part and is in clearance fit with the horizontal section and the vertical section of the right clamping body of the fourth partition type section part and the [ shaped cavity formed by the main body to slide along the stretching direction of the section part,
the sum of the thicknesses of the vertical section of the left clamping body or the right clamping body of the first partition type section part and the vertical section of the left clamping body or the right clamping body of the third partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the upper left buckling body and the horizontal section of the upper right buckling body, so that the first partition type section part and the third partition type section part can slide along the stretching direction of the section parts after being inserted into the gap in a clearance fit manner,
the sum of the thicknesses of the left clamping body or the right clamping body of the second partition type section part and the vertical section of the left clamping body or the right clamping body of the fourth partition type section part is slightly smaller than or equal to the length of a gap between the horizontal section of the left lower buckling body and the horizontal section of the right lower buckling body, so that the second partition type section part and the fourth partition type section part can slide along the stretching direction of the section parts in a clearance fit mode after being inserted into the gap.
2. The partitioned spliceable profile container of claim 1, wherein:
wherein,
the thickness a of the connecting portion, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationship: a is more than or equal to b1 more than or equal to c1,
the thickness a of the connecting portion, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a is more than or equal to b2 more than or equal to c2,
the thickness a of the connecting portion, the thickness b3 of the vertical section of the upper right fastener, and the thickness c3 of the horizontal section of the upper right fastener have the following relationship: a is more than or equal to b3 more than or equal to c3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a is more than or equal to b4 more than or equal to c4,
the thickness A of the main body is greater than the thickness A1 of the vertical section of the left snap body, and the thickness B1 of the vertical section of the left snap body is greater than the thickness C1 of the horizontal section of the left snap body,
the thickness A of the main body is greater than the thickness B2 of the vertical section of the right snap body, and the thickness B2 of the vertical section of the right snap body is greater than the thickness C2 of the horizontal section of the right snap body.
3. The partitioned spliceable profile container of claim 1, wherein:
wherein,
the vertical section of the upper left fastener and the horizontal section of the upper left fastener form a right angle or an acute angle,
the vertical section of the left lower buckling body and the horizontal section of the left lower buckling body form a right angle or an acute angle,
the vertical section of the right upper fastener and the horizontal section of the right upper fastener form a right angle or an acute angle,
the vertical section of the right lower buckling body and the horizontal section of the right lower buckling body form a right angle or an acute angle,
the vertical section of the left snap body and the horizontal section of the left snap body form a right angle or an acute angle,
the vertical section of the right clamping body and the horizontal section of the right clamping body form a right angle or an acute angle.
4. The partitioned spliceable profile container of claim 1, wherein:
wherein,
the vertical section of the upper left buckling body and the connecting part form a right angle or an acute angle,
the vertical section of the left lower buckling body forms a right angle or an acute angle with the connecting part,
the vertical section of the right upper buckling body and the connecting part form a right angle or an acute angle,
the included angle between the vertical section of the right lower buckling body and the connecting part is a right angle or an acute angle,
the vertical section of the left clamping body forms a right angle or an acute angle with the main body,
the vertical section of the right clamping body and the main body form a right angle or an acute angle.
5. The partitioned spliceable profile container of claim 1, wherein:
wherein,
the thickness a of the connecting portion, the thickness b1 of the vertical section of the upper left fastener, and the thickness c1 of the horizontal section of the upper left fastener have the following relationship: a is more than or equal to b1 more than or equal to c1,
the thickness a of the connecting portion, the thickness b2 of the vertical section of the left lower fastener, and the thickness c2 of the horizontal section of the left lower fastener have the following relationship: a is more than or equal to b2 more than or equal to c2,
the thickness a of the connecting portion, the thickness b3 of the vertical section of the upper right fastener, and the thickness c3 of the horizontal section of the upper right fastener have the following relationship: a is more than or equal to b3 more than or equal to c3,
the thickness a of the connecting part, the thickness b4 of the vertical section of the lower right fastener and the thickness c4 of the horizontal section of the lower right fastener have the following relationship: a is more than or equal to b4 more than or equal to c4,
the thickness a of the main body, the thickness B1 of the vertical section of the left snap body, and the thickness C1 of the horizontal section of the left snap body have the following relationship: a is 1.5-2.5B1, B1 is 1.5-2.5C1,
the thickness A of the main body, the thickness B2 of the vertical section of the right snap body, and the thickness C2 of the horizontal section of the right snap body have the following relationship: a is 1.5-2.5B2, B2 is 1.5-2.5C 2.
6. The partitioned spliceable profile container of claim 1, wherein:
the length of the gap between the horizontal section of the upper left fastener and the horizontal section of the upper right fastener is 50-65% of the length of the connecting part,
the length of the gap between the horizontal section of the left lower fastener and the horizontal section of the right lower fastener is 50-65% of the length of the connecting part,
the length of the gap between the horizontal section of the left engaging body and the horizontal section of the right engaging body is 65% or more but less than 100% of the length of the main body.
7. The partitioned spliceable profile container of claim 1, wherein:
the connecting part is rectangular, the length-width ratio is greater than or equal to 2,
the left buckling part and the right buckling part are arranged in bilateral symmetry,
the upper left buckling body and the lower left buckling body are arranged symmetrically up and down,
the right upper buckling body and the right lower buckling body are arranged up and down symmetrically,
the main body is rectangular, the length-width ratio is greater than or equal to 2,
the left clamping body and the right clamping body are arranged in a bilateral symmetry mode.
8. The partitioned spliceable profile container of claim 1, wherein:
the vertical section of the upper left buckling body is vertical to the connecting part, the horizontal section of the upper left buckling body is vertical to the vertical section,
the vertical section of the left lower buckling body is vertical to the connecting part, the horizontal section of the left lower buckling body is vertical to the vertical section,
the vertical section of the right upper fastener is vertical to the main body, the horizontal section is vertical to the vertical section,
the vertical section of the right lower fastener is vertical to the main body, the horizontal section is vertical to the vertical section,
the vertical section of the left clamping body is vertical to the main body, the horizontal section of the left clamping body is vertical to the vertical section,
the vertical section of the right clamping body is perpendicular to the main body, and the horizontal section of the right clamping body is perpendicular to the vertical section.
9. The partitioned spliceable profile container of claim 1, wherein:
wherein the drawn length of the profile parts for connection is less than or equal to the drawn length of the partitioned profile parts,
when the drawn length of the profile parts for connection is less than or equal to the drawn length of the partitioned profile parts,
one of the profile parts for connection is provided and is slidably mounted to the middle of the partition-type profile part, or
And two section parts for connection are arranged and are slidably mounted at two ends of the partition type section part.
10. The partitioned spliceable profile container of claim 1, wherein:
wherein the upper shell is connected to the ring beam through a bolt.
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| CN101997099A (en) * | 2009-08-12 | 2011-03-30 | 三星Sdi株式会社 | Battery pack with improved heat dissipation efficiency |
| CN201528006U (en) * | 2009-09-15 | 2010-07-14 | 万向集团公司 | Rechargeable battery frame |
| CN204385974U (en) * | 2014-11-20 | 2015-06-10 | 广西德骏门窗幕墙有限公司 | A kind of curtain wall waterproof construction |
| CN107331807A (en) * | 2017-06-06 | 2017-11-07 | 北京新能源汽车股份有限公司 | battery case |
| CN107331812A (en) * | 2017-07-17 | 2017-11-07 | 苏州安靠电源有限公司 | Battery case with heat exchange function |
| CN208078073U (en) * | 2018-04-28 | 2018-11-09 | 北京新能源汽车股份有限公司 | Power battery box, power battery and electric automobile |
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| CN109638194A (en) | 2019-04-16 |
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