CN113904056A - Novel all-weather electric vehicle battery pack shell - Google Patents
Novel all-weather electric vehicle battery pack shell Download PDFInfo
- Publication number
- CN113904056A CN113904056A CN202111338811.9A CN202111338811A CN113904056A CN 113904056 A CN113904056 A CN 113904056A CN 202111338811 A CN202111338811 A CN 202111338811A CN 113904056 A CN113904056 A CN 113904056A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- novel
- electric vehicle
- upper cover
- vehicle battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01M50/258—Modular batteries; Casings provided with means for assembling
-
- 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
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a novel all-weather electric vehicle battery pack shell which comprises an upper cover assembly and a lower box assembly which are mounted in a sealing and buckling mode through a U-shaped sealing strip, wherein the upper cover assembly comprises an upper cover, an upper heat insulation layer and the lower box assembly of the sealing strip, which are fixed from outside to inside through an upper bonding layer, the upper heat insulation layer and the lower box assembly of the sealing strip comprise a cold-hot circulation aluminum pipe, an inner plate, a lower bonding layer and an outer plate, which are fixed from inside to outside, the periphery of the outer plate forms a lower heat insulation layer fixed in a closed cavity through bonding of L-shaped sheet metal parts, and a U-shaped matching sealing strip is arranged at the connecting position of the edges of the upper cover assembly and the lower box assembly. The invention is the battery pack shell of the electric vehicle made of all-weather composite material, the composite material has better designability, the design of a multilayer hollow three-dimensional structure is adopted, the mechanical property is met, and meanwhile, the battery shell has better heat insulation, air tightness, insulativity and better fireproof and explosion-proof performance.
Description
Technical Field
The invention relates to the technical field of new energy battery packs, in particular to a novel all-weather electric vehicle battery pack shell.
Background
The battery pack of the electric vehicle is a container for storing the storage battery, and from the use perspective, the shell of the battery pack is required to have the performances of certain strength, rigidity, impact resistance, shock absorption, flame retardance, sealing, heat preservation, light weight and quick replacement. The defects and shortcomings of the prior art are at least as follows:
1. the battery pack is made of aluminum alloy or steel, is insufficient in designability, simple in modeling, multiple in working procedures, heavy in weight, incapable of being manufactured at one time, incapable of preserving heat, incapable of adapting to temperature difference between the south and north and winter and summer, and capable of reducing endurance mileage.
2. At present, most of charging modes of storage batteries are charging pile forms, and the charging mode can be extended to slow charging and quick charging, wherein the slow charging time is 6-8h, the charging time is too long and not flexible enough, and the charging mode is inconvenient for work and life and cannot react in time particularly when facing to an emergency situation. The quick charging time is 10-30min, although the charging time is greatly shortened, the heat productivity of the battery is sharply increased in the quick charging process, and meanwhile, the interior of the battery is severely subjected to chemical reaction, so that the service life of the battery is influenced to a certain extent, and the later-stage use cost of the electric vehicle is greatly increased.
3. The common sealing structure on the market is a plane seal, and the width of the sealing strip covers the width of the whole flange surface. The required sealing locking force is large and therefore the number of locking screws is large.
4. The upper cover and the lower box body of the conventional battery pack are connected through screws, the number of the screws is large, each screw is required to achieve the same locking torque after the screws are locked, the fact that the torque of the screwed screws changes when other screws are screwed can be found in the actual operation process, whether the screw locking torque reaches the standard after all the screws are screwed is checked, and otherwise, the screws are screwed again, and the process is complicated. Or a set of special tooling is designed, all the screws are pneumatically controlled to be screwed in together, but the cost is increased.
Disclosure of Invention
The invention aims to provide a novel all-weather composite material electric vehicle battery pack shell, the composite material has better designability, and a multilayer hollow three-dimensional structure design is adopted, so that the mechanical property is met, and meanwhile, a battery shell has better heat insulation performance.
The invention is realized by the following technical scheme in order to achieve the purpose:
the utility model provides a novel all-weather electric motor car battery package shell, includes upper cover assembly and lower box assembly through U-shaped sealing strip border tongue formula cooperation installation, and the upper cover assembly includes from the extroversion in through the fixed upper cover of last adhesive linkage and goes up the heat preservation, and lower box assembly includes from inside to outside fixed cold and hot circulation aluminum pipe, inner panel, adhesive linkage and planking down, forms closed cavity behind the planking periphery through bonding L shape sheet metal component, and sealed cavity is fixed with heat preservation down. The tongue-shaped matched U-shaped sealing strip is arranged at the joint of the upper cover assembly and the lower box body assembly, and the battery core, the structural adhesive and the heat-conducting adhesive form the battery module of the integrated combined structure. The structure well realizes the comprehensive heat preservation, the rigidity enhancement, the battery capacity density increase and the heat balance function.
Furthermore, the upper cover material is formed by compounding an SMC sheet and prepreg cloth, the thickness of the upper cover material is 1.5-3mm, a sealing clamping strip and an upper clamp are arranged on the edge of the upper cover material, a U-shaped sealing strip is bonded on the sealing clamping strip through glue, and connecting holes are formed in the side wall of the upper clamp at intervals.
Furthermore, the upper bonding layer is made of PU or glue; the upper heat-insulating layer is made of aerogel, heat-insulating felt, heat-insulating cotton or PU.
Further, the upper heat-insulating layer is made of aerogel, heat-insulating felt, heat-insulating cotton or PU.
Furthermore, the inner plate material is formed by compounding an SMC sheet and prepreg cloth, the wall thickness of the inner plate material is 2-3mm, a U-shaped sealing groove is formed in the edge of the inner plate material, and a U-shaped sealing strip is in sealing fit with the U-shaped sealing groove.
Furthermore, the outer plate material is formed by compounding an SMC sheet and prepreg cloth, the wall thickness is 3-5mm, and the edge of the outer plate material is provided with a buckle bulge.
Furthermore, the bottom surface of the inner side of the outer plate is provided with at least two criss-cross raised reinforcing ribs, and the lower bonding layer is arranged on the top surfaces of the reinforcing ribs.
Furthermore, an integrated port is formed in one end of the lower box body assembly, and a port reinforcing piece is installed at the position of the integrated port.
Furthermore, at least four groups of sliding lock shafts are arranged on the outer side surface of the L-shaped sheet metal part.
Furthermore, the outer side surface of the U-shaped sealing strip protrudes to form at least 2 triangular sealing convex ribs. Further, install the electric core group in the lower box assembly, the electric core group bonds self and inner panel into whole through the structure is glued, and the space between electric core and the electric core is filled with heat-conducting glue.
Compared with the prior art, the invention adopts composite materials, adopts a multilayer hollow three-dimensional structure design, forms U-shaped matching of the U-shaped sealing strips, has a sandwich structure of the lower box body assembly, has cold and hot circulation and can realize comprehensive heat preservation; the battery box core, the structural adhesive and the heat conducting adhesive form the battery module with an integrated combined structure. The structure well realizes the comprehensive heat preservation, the rigidity enhancement, the capacity density increase of the battery and the heat balance function; the sealing effect is good, the mechanical property can be met, and meanwhile, the battery shell has better heat insulation, air tightness, insulativity and better fireproof and explosion-proof performance.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the junction of the upper and lower cover assemblies of the present invention;
FIG. 3 is a schematic view of the connection of the upper cover assembly of the present invention with a U-shaped sealing strip;
fig. 4 is a schematic structural view of the U-shaped sealing strip of the present invention.
In the drawings, 1 — the upper cover assembly; 11-upper cover; 111-sealing the clamping strip; 112-upper buckle; 113-a connection hole; 12-upper adhesive layer; 13-upper insulating layer; 2-lower box assembly; 21-an inner plate; 211-U-shaped seal groove; 22-lower adhesive layer; 23-an outer plate; 231-snap protrusions; 232-reinforcing ribs; 233-U-shaped groove; 24-lower insulating layer; 25-L-shaped sheet metal parts; 26-an integrated port; 27-port reinforcement; 3-U-shaped sealing strips; a 31-U shaped portion; a 32-L shaped portion; 33-sealing convex ribs; 4-sliding lock shaft; 5-a cold-hot circulating aluminum pipe; 6-electric core group.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that unless otherwise explicitly specified or limited, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is merely for convenience of description and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention.
The first feature may be "on" or "under" the second feature and may include the first and second features being in direct contact, or the first and second features being in contact via another feature not being in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 4, the novel all-weather electric vehicle battery pack shell comprises an upper cover assembly 1 and a lower box assembly 2 which are installed in a tongue-type fit mode along the edge of a U-shaped sealing strip 3, wherein the upper cover assembly 1 comprises an upper cover 11 and an upper heat insulation layer 13 which are fixed from outside to inside through an upper bonding layer 12.
The lower box body assembly 2 comprises a cold-hot circulation aluminum pipe 5, an inner plate 21, a lower bonding layer 22 and an outer plate 23 which are sequentially fixed from inside to outside, the periphery of the outer plate 23 forms a closed cavity after being bonded with an L-shaped sheet metal part 25, a lower heat insulation layer 24 is fixed in the closed cavity, and a tongue-shaped matched U-shaped sealing strip 3 is arranged at the joint of the upper cover assembly 1 and the lower box body assembly 2. Heat exchange liquid flows through the cold and hot circulation aluminum pipe 5.
Preferably, the edges of the upper cover assembly 1 and the lower box assembly 2 are further fastened and connected through screws. The lower box body assembly 2 forms a three-dimensional hollow structure through the lower bonding layer 22 and the screw connection, so that the lower box body assembly 2 has the performances of heat preservation, shock absorption, high strength and light weight.
L shape sheet metal 25 chooses the high strength steel for use, 23 planking outer frames parcel one deck L shape sheet metal 25, the closed cavity that forms between 23 planking and the L shape sheet metal 25, L shape sheet metal 25 and 23 planking's fixed mode is including beating glue and screw connection. The lower insulating layer 24 is fixed in a closed cavity between the outer plate 23 and the L-shaped sheet metal part 25 and is made of aerogel, insulating felt, insulating cotton or PU.
As shown in fig. 2 and 3, the U-shaped sealing strip 3 is designed into a U shape, and the inner surface of the U-shaped sealing strip is glued on the sealing clamping strip 111 of the edge flange of the upper cover 11. The outer side surface of the U-shaped sealing strip 3 protrudes to form at least 2 triangular sealing convex ribs 33, each sealing convex rib 33 is of a triangular structure, one side wall is fixed with the U-shaped sealing strip 3, one side wall of the other two side walls faces the installation scheme, and the other side wall forms thorns to prevent separation and enhance the sealing effect. The sealing convex rib 33 plays a main sealing role, and the rest faces are auxiliary, so that the structure can ensure that the required force is small and the sealing can be realized when the upper cover 11 is assembled with the lower box body assembly 2.
As shown in fig. 4, the U-shaped sealing strip 3 includes a U-shaped portion 31 and an L-shaped portion 32 integrally connected to an outer side of the U-shaped portion 31, an inner side of the U-shaped portion 31 is fixed to the sealing clip strip 111 of the upper cover 11, an outer side of the U-shaped portion 31 is installed to the U-shaped sealing groove 211 of the inner plate 21, and in one embodiment, preferably, the number of the sealing ribs 33 is 5, and includes 4 sealing ribs symmetrically disposed on an outer side of the U-shaped portion 31 and 1 sealing rib disposed on an outer side of the L-shaped portion 32.
Preferably, as shown in fig. 4, the upper cover 11 is made of a double-layer composite of SMC sheet and prepreg cloth, and has a thickness of 1.5-3mm, in one embodiment 2mm, a sealing strip 111 and an upper buckle 112 are disposed at the edge, the sealing strip 111 is connected with the U-shaped sealing strip 3 in a sealing manner, and the U-shaped sealing strip 3 is adhered to the sealing strip 111 by glue. In the embodiment, the edge of the upper cover is a flange surface with a local thickening, and has two ring vertical surfaces, wherein the inner ring vertical surface is a sealing clamping strip 111 for being installed in cooperation with the U-shaped sealing strip 3, and the outer ring vertical surface is an upper clamping buckle 112 for being installed in cooperation with the outer plate 23 of the lower box assembly 2. The side wall of the upper buckle 112 is provided with connecting holes 113 at intervals, which correspond to the salient points arranged on the outer plate 23 one by one, so as to realize positioning and installation.
Preferably, the material of the upper bonding layer 12 is PU or glue, and in the embodiment, PU is selected for bonding the upper insulating layer 13 and the upper cover 11 into a whole.
Preferably, the material of the upper insulating layer 13 is aerogel, heat preservation felt, heat preservation cotton or PU, and the upper insulating layer 13 includes, but is not limited to, aerogel heat preservation felt, heat preservation cotton and PU. The upper heat-insulating layer 13 completely covers the inner surface of the upper cover 11, and the upper heat-insulating layer 13 is bonded by glue or PU (polyurethane) to play a role in heat insulation, so that the battery pack is suitable for various external environment temperatures.
Preferably, the inner plate 21 is made of SMC sheet and prepreg cloth, and has a wall thickness of 2-3mm, in a specific embodiment 2.5mm, and has a U-shaped sealing groove 211 at its edge, and the U-shaped sealing strip 3 is disposed in the U-shaped sealing groove 211. The U-shaped sealing groove 211 corresponds to the U-shaped sealing strip 3 in shape, and the U-shaped sealing strip is in sealing fit with the U-shaped sealing groove to meet the sealing requirement. The sealing structure needs small locking force relative to plane sealing, the design reaction directions on the side surface of the sealing strip are different, the plane sealing is stressed in the Z direction, and although the force is also stressed in the Z direction at present, compared with the plane sealing, the sealing structure is much smaller and simultaneously stressed in the lateral direction.
The edge flange face of planking 23 has U-shaped groove 233, and the U-shaped seal groove 211 of inner panel 21 is detained in the U-shaped groove 233 of planking 23 flange face department, fixes position and preliminary fixed with inner panel 21 and planking 23 through this structure, and the whole shape design of inner panel 21 is simple, and the planking is as the part of main bearing capacity, and rigidity and intensity need be considered, designs to be more complicated, if make brace rod or wave structure.
Preferably, the outer plate 23 is made of a composite material of SMC sheet and prepreg cloth, and has a wall thickness of 3-5mm, in a specific embodiment 4mm, and the edge of the outer plate is provided with a snap projection 231. The edge flange face of outer plate 23 also has a U-shaped slot 233 corresponding to U-shaped seal groove 211.
In the specific embodiment, 30-60 buckling protrusions 231 are uniformly distributed on one circle of the flange vertical surface of the outer plate 23, the shape of the buckling protrusions 231 is circular or long circular, the buckling protrusions 231 can be designed on the upper cover 11 or the lower box assembly 2 according to different battery boxes, the embodiment takes the buckling protrusions 231 designed on the outer plate 23 as an illustration, the sizes of the buckling protrusions 231 are 6-14mm, the number of the buckling protrusions is 30-60, specifically, according to the size of a battery pack, holes are designed in the positions of the upper cover 11 corresponding to the buckling protrusions 231, and the buckling protrusions 231 are buckled into the holes of the upper cover 11 by 1-3 mm.
Preferably, the inner side surface of the outer plate 23 has at least two ribs 232 protruding in a crisscross manner, and the lower adhesive layer 22 is disposed on the top surfaces of the ribs 232. The side surfaces around the outer plate 23 are designed to be thick, and the mold structure is a four-side core pulling structure. The reinforcing ribs 232 are arranged in the core pulling direction, so that the side faces form a square lattice structure, and meanwhile, the extending height of the edges of the reinforcing ribs 232 is as high as the integral thickness of the inner side face of the outer plate 23.
Preferably, the inner plate 21 and the outer plate 23 are thickened at the mounting position or the key position, and the material of the lower adhesive layer 22 includes PU and structural adhesive, and the adhesive layer is taken as PU in the specific embodiment as an illustration. The lower adhesive layer 22 is uniformly sprayed to the outer surface of the inner plate 21 by a manipulator and then bonded with the outer plate 23.
Preferably, an integrated port 26 is provided at one end of the lower casing assembly 2, and a port reinforcement 27 is installed at the integrated port 26. Various circuits inside the battery pack are concentrated on a metal box at the integrated port 26, the metal box is designed into an aviation plug form, the circuit connected with the battery pack on the vehicle body is also in an integrated aviation plug form, and the circuit connection is convenient and fast.
As shown in fig. 1, preferably, at least four sets of slide lock shafts 4 are mounted on the outer bottom of the L-shaped sheet metal part 25. The L-shaped sheet metal part 25 is added to the frame of the outer plate 23, so that the peripheral side face forms a closed hollow structure, and heat insulation materials, namely a lower heat insulation layer 24, can be placed in the space. The inner surface of the outer plate 23 is provided with a reinforcing rib 232, so that after the inner plate 21 and the outer plate 23 are closed, a hollow structure is formed between the two parts, and the integral rigidity and strength are increased. The sliding lock shafts 4 are parts mounted on the L-shaped sheet metal part 25, the sliding lock shafts 4 are provided with bearings, the whole battery pack is driven to slide through the design of the bearings, the number of the sliding lock shafts 4 is 14-30, the sliding lock shafts 4 are arranged on the side faces of the battery pack in two long directions according to the size of the battery pack.
Install electric core group 6 in lower box assembly 2, preferred, electric core group 6 bonds into whole with inner panel 21 with self through the structure is glued, and the space between electric core and the electric core is filled with heat conduction glue, balances the heat between each electric core. The electric core group 6 is glued together with lower box assembly 2 through the structure, and the whole rigid body structure that forms has promoted lower box assembly 2's rigidity greatly, through CAE analysis, when 20 g's modality, the biggest deformation volume of lower box assembly 2 bottom plate face each layer is only 0.26 mm.
The energy storage part comprises a plurality of independent electric cores, and more electric cores can be placed in the form of a non-battery module, so that the energy density of the battery is increased. The electric core is distributed on the inner plate, a plurality of independent electric cores are bonded into a whole and are bonded with the inner plate through the structural adhesive, the space between the electric core and the electric core is filled with the heat-conducting adhesive, the heat between each electric core is balanced, and the electric core bonded into the whole contributes to improving the whole rigidity and the strength of the battery box body. The cold-hot circulation aluminum pipe 5 is composed of a plurality of rectangular flat aluminum pipes, liquid flows through the inside, and the temperature of the battery cell is balanced to reach an ideal temperature when the external environment temperature is too cold or too hot.
The battery replacement of the battery pack is to replace the fully charged battery pack into a vehicle needing to be charged at a battery replacement station. A metal framework is arranged on a vehicle body to fix a battery pack, sliding grooves are formed in two side faces of the metal framework, a lock shaft moves in the sliding grooves, the whole process is operated by a manipulator, and the whole battery replacement process is carried out for 30s, so that the quick battery replacement is realized.
The embodiments of the present invention are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading the present specification, but the present invention is protected by patent law within the scope of the appended claims.
Claims (10)
1. The utility model provides a novel all-weather electric motor car battery package shell, a serial communication port, include upper cover assembly (1) and lower box assembly (2) through U-shaped sealing strip (3) tongue formula cooperation installation, upper cover assembly includes from outside to inside through upper cover (11) and last heat preservation (13) that last adhesive linkage (12) are fixed, lower box assembly includes from inside to outside fixed cold and hot circulation aluminum pipe (5), inner panel (21), adhesive linkage (22) and planking (23) down, form closed cavity behind the planking periphery through bonding L shape sheet metal component (25), closed cavity intracavity is fixed with lower heat preservation (24).
2. The novel all-weather electric vehicle battery pack shell as claimed in claim 1, wherein the upper cover material is formed by compounding SMC sheet and prepreg cloth, the thickness of the upper cover material is 1.5-3mm, a sealing clamping strip (111) and an upper buckle (112) are arranged at the edge, the U-shaped sealing strip is adhered to the sealing clamping strip through glue, and the side wall of the upper buckle is provided with connecting holes (113) at intervals.
3. The novel all-weather electric vehicle battery pack shell as claimed in claim 1, wherein the material of the upper bonding layer is PU or glue; the upper heat-insulating layer is made of aerogel, heat-insulating felt, heat-insulating cotton or PU.
4. The novel all-weather electric vehicle battery pack shell according to claim 1, wherein the inner plate material is formed by compounding SMC sheet materials and prepreg cloth, the wall thickness of the inner plate material is 2-3mm, a U-shaped sealing groove (211) is formed in the edge of the inner plate material, and the U-shaped sealing strip is in sealing fit with the U-shaped sealing groove.
5. The novel all-weather electric vehicle battery pack shell as claimed in claim 1, wherein the outer plate is made of SMC sheet and prepreg cloth, the wall thickness is 3-5mm, and the edge of the outer plate is provided with a buckle protrusion (231).
6. The novel all-weather electric vehicle battery pack case as claimed in claim 1, wherein the inner bottom surface of the outer plate has at least two criss-cross raised ribs (232), and the lower adhesive layer is disposed on the top surfaces of the ribs.
7. The novel all-weather electric vehicle battery pack case as claimed in claim 1, wherein the lower case assembly has an integrated port (26) at one end, and a port reinforcement (27) is installed at the integrated port.
8. The novel all-weather electric vehicle battery pack shell as claimed in claim 1, wherein at least four sets of sliding lock shafts (4) are mounted on the outer side surface of the L-shaped sheet metal part.
9. The novel all-weather electric vehicle battery pack shell as claimed in claim 1, wherein the outer side surface of the U-shaped sealing strip is protruded to form at least 2 triangular sealing ribs (33).
10. The novel all-weather electric vehicle battery pack shell according to claim 1, characterized in that the lower box assembly is internally provided with an electric core group (6), the electric core group is integrally bonded with the inner plate through structural adhesive, and the gap between the electric core and the electric core is filled with heat-conducting adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111338811.9A CN113904056A (en) | 2021-11-12 | 2021-11-12 | Novel all-weather electric vehicle battery pack shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111338811.9A CN113904056A (en) | 2021-11-12 | 2021-11-12 | Novel all-weather electric vehicle battery pack shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113904056A true CN113904056A (en) | 2022-01-07 |
Family
ID=79194076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111338811.9A Pending CN113904056A (en) | 2021-11-12 | 2021-11-12 | Novel all-weather electric vehicle battery pack shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113904056A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275474A (en) * | 2022-09-19 | 2022-11-01 | 蜂巢能源科技股份有限公司 | Box structure and battery package |
| WO2023071779A1 (en) * | 2021-10-25 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | Battery pack case, battery, electric device, and electricity-storage cabinet |
| WO2023216308A1 (en) * | 2022-05-10 | 2023-11-16 | 安徽强龙工业有限公司 | Double-layer battery pack |
-
2021
- 2021-11-12 CN CN202111338811.9A patent/CN113904056A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071779A1 (en) * | 2021-10-25 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | Battery pack case, battery, electric device, and electricity-storage cabinet |
| WO2023216308A1 (en) * | 2022-05-10 | 2023-11-16 | 安徽强龙工业有限公司 | Double-layer battery pack |
| CN115275474A (en) * | 2022-09-19 | 2022-11-01 | 蜂巢能源科技股份有限公司 | Box structure and battery package |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113904056A (en) | Novel all-weather electric vehicle battery pack shell | |
| CN201238056Y (en) | Lithium ion battery module with battery compressing structure | |
| JP6490105B2 (en) | Battery module including cartridge provided with gripping section | |
| CN110993845B (en) | Battery pack and electric vehicle | |
| CN107210398B (en) | Power supply device and vehicle having the same | |
| CN217182329U (en) | Box structure, battery and electric device | |
| CN209896152U (en) | Battery pack and electric vehicle | |
| JP2023509529A (en) | Battery packs and devices containing them | |
| CN216288784U (en) | Novel all-weather electric vehicle battery pack shell | |
| CN202183424U (en) | Power cell box component | |
| CN111276656B (en) | Battery pack lower box assembly integrated with efficient thermal management system | |
| CN210040347U (en) | Battery module and power battery | |
| CN216288762U (en) | Lower box body of electric vehicle battery pack | |
| CN216288721U (en) | Box cover sealing structure | |
| CN115122894A (en) | Power battery assembly inversely integrated with sliding plate chassis, electric vehicle and design method | |
| CN111430621B (en) | Battery pack | |
| WO2022061942A1 (en) | Lithium battery having housing composite cooling pipeline and preparation process therefor | |
| CN209896131U (en) | Auxiliary fixing frame for lithium battery | |
| CN206921875U (en) | A kind of flexible package lithium cell packaging film structure | |
| CN220672679U (en) | Heat exchange piece, thermal management component, battery and power utilization device | |
| CN216928806U (en) | Battery pack box and battery pack | |
| CN218827526U (en) | Vehicle power battery's shell and vehicle power battery | |
| CN220172217U (en) | Battery pack heat insulating plate, battery pack and vehicle | |
| CN218677328U (en) | Battery device | |
| CN219086150U (en) | Battery box, battery pack and electric equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |