CN116053687A - Battery box body of blow-up plate stamping resistance welding structure - Google Patents

Battery box body of blow-up plate stamping resistance welding structure Download PDF

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Publication number
CN116053687A
CN116053687A CN202211405613.4A CN202211405613A CN116053687A CN 116053687 A CN116053687 A CN 116053687A CN 202211405613 A CN202211405613 A CN 202211405613A CN 116053687 A CN116053687 A CN 116053687A
Authority
CN
China
Prior art keywords
cavity
plate
tray
supporting plate
resistance welding
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
Application number
CN202211405613.4A
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Chinese (zh)
Inventor
徐庆森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Tianjun Precision Technology Co ltd
Original Assignee
Jiangsu Tianjun Precision Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Tianjun Precision Technology Co ltd filed Critical Jiangsu Tianjun Precision Technology Co ltd
Priority to CN202211405613.4A priority Critical patent/CN116053687A/en
Publication of CN116053687A publication Critical patent/CN116053687A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a battery box body of a blow-up plate stamping resistance welding structure, which comprises a tray body, wherein the tray body comprises an upper supporting plate and a lower supporting plate, a tray concave cavity for accommodating a battery pack is concavely arranged at the outer edge of the upper supporting plate at an upper interval, an upper supporting plate edge sealing edge is formed at the outer edge of the upper supporting plate, a containing cavity for accommodating the tray concave cavity is concavely arranged at the outer edge of the lower supporting plate at an upper interval, a lower supporting plate edge sealing edge is formed at the outer edge of the lower supporting plate, the upper supporting plate edge sealing edge and the lower supporting plate edge sealing edge are in sealing and jointing arrangement, and a liquid cooling cavity is formed at the interval between the cavity wall of the containing cavity and the bottom of the tray concave cavity, so that the tray body structure with good air tightness can be formed in one welding process.

Description

Battery box body of blow-up plate stamping resistance welding structure
Technical Field
The invention belongs to the field of battery boxes, and particularly relates to a battery box body with an inflation plate stamping resistance welding structure.
Background
The battery tray of present new energy vehicle battery box passes through bottom plate and frame constitution for the inside processing of bottom plate of bearing group battery has the liquid cooling chamber, and the bottom plate is generally spliced through two or more plate bodies of taking the cavity, thereby welds again after the amalgamation and constitutes complete bottom plate, and the bottom plate after the welding welds with the frame again, needs through welding many times, and the process is complicated, because solder joint department is more moreover, and the holistic gas tightness of tray is difficult to guarantee.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the battery box body with the blow-up plate stamping resistance welding structure, which can form a tray body structure with good air tightness in one welding process.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a battery box of inflation board punching press resistance welding structure, includes the tray body, the tray body contains top board and bottom board, the interval is equipped with the tray cavity that is used for holding the group battery in the concave tray cavity that is used for in top board outer fringe on the top board, the top board outer fringe constitutes the top board banding, the interval is equipped with the holding chamber that is used for holding the tray cavity in the concave holding chamber of bottom board outer fringe on the bottom board, the bottom board outer fringe constitutes the bottom board banding, top board banding and the sealed laminating setting of bottom board banding, just the chamber wall in holding chamber sets up and constitutes the liquid cooling chamber with the bottom interval in tray cavity.
Further, the liquid cooling runner also comprises a plurality of inner supporting bodies, and the upper surfaces of the inner supporting bodies support the bottom wall of the tray concave cavity.
Further, the inner support body is an island-shaped protruding structure, wherein the bottom wall of the accommodating cavity faces to the inner protrusion of the accommodating cavity, and the island-shaped protruding structure is attached to the bottom wall of the tray concave cavity.
Further, one side of the inner support body corresponding to the bottom wall of the outer side of the lower support plate forms an inward concave cavity, and the concave cavity of the inner cavity is exposed to air.
Further, at least one group of flow guide components are arranged in the liquid cooling cavity, the liquid cooling cavity is divided into a plurality of liquid cooling secondary cavities through the flow guide components, the liquid cooling secondary cavities are communicated head and tail in the upward direction of medium flow to form a liquid cooling flow channel, and liquid inlets and liquid outlets are respectively formed in the liquid cooling cavity at two ends corresponding to the liquid cooling flow channel.
Further, the bottom of tray body sets up the bearing support, the bearing support is including corresponding the bearing frame that sets up on tray body contour edge and a plurality of bearing girders that distribute along tray body longitudinal direction, the both ends that correspond to bearing girders on the bearing frame are provided with the buffering connecting seat along bearing girder length direction deformation buffering respectively, the tip of bearing girder is connected on the bearing frame through the buffering connecting seat.
Further, the buffer connection seat comprises connection columns and connection plates, two ends of the connection columns are connected to the supporting beams and the supporting frames, two groups of connection columns are arranged at intervals, a suspended bridge between the two groups of connection columns is provided with the connection plates, the intervals of the connection plates are arranged on the peripheral wall of the accommodating cavity of the lower supporting plate, a deformation compensation area is formed between the connection plates and the cavity wall of the accommodating cavity of the lower supporting plate, and the connection plates comprise connection structures which are positively corresponding to the deformation compensation area and are used for connecting longitudinal beams of the frame; under the action of transverse impact, the connecting plate deforms and is buffered towards the deformation compensation area.
Further, the buffer connecting seat further comprises a buffer body, and the buffer body is arranged between the connecting column and the cavity wall of the accommodating cavity of the lower supporting plate; the buffer body buffers and inhibits the displacement movement of the connecting column towards the cavity wall of the accommodating cavity.
Further, the buffering body contains the fixed plate and sets up the buffering convex closure structure on the fixed plate, the buffering convex closure structure is the plate body of fixed plate towards spliced pole punching press protrusion formation, the buffering convex closure structure deviates from one side in the spliced pole and is the cavity, buffering convex closure structure just corresponds the spliced pole setting.
Further, the bearing frame contains the layer board portion, protect chamber portion and the support bottom that integrative setting, layer board portion sets up and support corresponding to layer board banding the layer board banding, protect chamber portion and set up corresponding to the lateral wall of holding chamber, the support bottom sets up corresponding to the bottom of holding chamber.
The beneficial effects are that: according to the invention, through the overlapped butt-splice combination of the upper supporting plate and the lower supporting plate, the upper supporting plate and the lower supporting plate are of an integral plate body structure, and the upper supporting plate and the lower supporting plate replace the bottom plate and the frame, and only the edge sealing part of the upper supporting plate and the edge sealing part of the lower supporting plate are subjected to seal welding, so that the welding times can be reduced, and a tray body structure with good air tightness can be formed in one welding process.
Drawings
FIG. 1 is a schematic perspective view of the overall structure of the present invention;
FIG. 2 is a perspective view of the overall structure of the present invention;
FIG. 3 is a cross-sectional perspective view of the overall structure of the present invention;
FIG. 4 is an enlarged schematic view of the structure of the part A of the present invention;
FIG. 5 is a schematic bottom view of the overall structure of the present invention;
FIG. 6 is an enlarged schematic view of the structure of a part B of the present invention;
FIG. 7 is an enlarged schematic view of the structure of the part C of the present invention;
fig. 8 is a schematic diagram of the connection between the buffer connection base and the support frame according to the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 3, a battery box body with a blow-up plate stamping resistance welding structure comprises a tray body, wherein the tray body comprises an upper supporting plate and a lower supporting plate, a tray concave cavity for accommodating a battery pack is concavely arranged on the outer edge of the upper supporting plate at an upper interval, the bottom wall of the upper supporting plate 1 is of a planar structure, an upper supporting plate edge seal is formed on the outer edge of the upper supporting plate, a containing cavity for accommodating the tray concave cavity is concavely arranged on the outer edge of the lower supporting plate at an upper interval, a lower supporting plate edge seal is formed on the outer edge of the lower supporting plate, the upper supporting plate edge seal and the lower supporting plate edge seal are in sealing fit, welding and splicing are performed through resistance welding, and the cavity wall of the containing cavity and the bottom interval of the tray concave cavity are arranged and form a liquid cooling cavity. The upper supporting plate and the lower supporting plate are processed through inflation molding, the upper supporting plate and the lower supporting plate are combined in a butt joint mode through superposition of the upper supporting plate and the lower supporting plate, the upper supporting plate and the lower supporting plate are of an integral plate body structure, a liquid cooling cavity is formed between the two plate bodies, the bottom plate and the frame are replaced by the upper supporting plate and the lower supporting plate, sealing welding is conducted only at the edge sealing position of the upper supporting plate and the edge sealing position of the lower supporting plate, welding times can be reduced, and a tray body structure with good air tightness can be formed in one welding process.
Through the stack formula of upper bracket 1 and bottom plate 2 to the makeup combination for constitute the liquid cooling chamber between two plate bodies, can replace the great bottom plate structure of thickness through thinner plate body structure, reduce the use of material, because the frivolous characteristic of plate body structure reduces the total weight of tray body, make the tray body have the characteristics of lightweight.
As shown in fig. 4, the liquid cooling flow channel further comprises a plurality of inner supporting bodies, the upper surfaces of the inner supporting bodies support the bottom wall of the tray concave cavity, the bottom wall of the upper supporting plate 1 is supported and supported through the inner supporting bodies 8, and the bearing strength of the upper supporting plate is improved.
The inner support body is of an island-shaped bulge structure with the bottom wall of the accommodating cavity protruding towards the inner side of the accommodating cavity, the island-shaped bulge structure is attached to the bottom wall of the tray concave cavity, the inner support body 8 and the bottom of the upper support plate 1 can be welded and spliced through resistance welding, the island-shaped bulge structure can increase the contact area of the lower support plate 2 and a liquid cooling medium in the liquid cooling cavity, the heat conduction degree of the lower support plate 2 and the liquid cooling medium is improved, one side of the inner support body corresponding to the bottom wall of the outer side of the lower support plate forms an inward-sinking concave cavity, the inner cavity concave cavity is exposed to air, the heat dissipation contact area of the lower support plate 2 and the air is increased, and the heat dissipation efficiency is improved.
The liquid cooling chamber is gone up and is provided with at least a set of water conservancy diversion part, the water conservancy diversion part is the cavity diapire of holding chamber towards the protruding structure of ridge that the holding chamber subsided, just ridge protruding structure laminating in the diapire of tray cavity, just ridge protruding structure is the strip structure, the liquid cooling chamber separates into a plurality of liquid cooling secondary chamber through the water conservancy diversion part, and a plurality of liquid cooling secondary chamber forms the liquid cooling runner in the medium flow end to end intercommunication, and the liquid cooling runner includes inlet section 7a and play liquid section 7b, inlet and liquid outlet have been seted up respectively to the both ends that correspond the liquid cooling runner on the liquid cooling chamber, contain a water conservancy diversion part in this embodiment, inlet and liquid outlet homonymy set up, the water conservancy diversion part is located between inlet and the liquid outlet, just the one end of water conservancy diversion part is connected on the lateral wall at inlet, liquid outlet place, and the other end interval is in another lateral wall, forms the liquid cooling runner of U type.
As shown in fig. 5 to 8, the bottom of the tray body is provided with a bearing bracket, the bearing bracket comprises a bearing frame correspondingly arranged on the contour edge of the tray body and a plurality of bearing beams longitudinally distributed along the tray body, deformation-resistant acting forces of the tray body 1 on two length directions of bearing are enhanced through the bearing beams 12, the bearing beams 12 are also used for supporting the bottom wall of the lower tray, two ends, corresponding to the bearing beams, on the bearing frame are respectively provided with buffer connecting seats for deformation buffering along the length directions of the bearing beams, the end parts of the bearing beams are connected onto the bearing frame through the buffer connecting seats, and the buffer connecting seats are arranged below the edge sealing 5 of the lower tray.
At present, the battery tray is directly installed on the frame longeron of chassis, the layer board body is installed on the vehicle after, and the spandrel girder 12 is located the width direction of vehicle, and when the vehicle received left and right sides striking, the frame longeron of chassis received transverse impact, and its deformation directly caused the extrusion to the circumference lateral wall of battery tray, and then makes the battery tray warp, even directly extrudees the inside group battery of tray, and this scheme can cushion the deflection of frame longeron through buffering connecting seat 13, eliminates or alleviate the frame longeron and warp the back towards the invasion degree in tray body, and then reduces the damage to tray body.
The outer sides of the two ends of the supporting beam 12 are also provided with reinforcing members 19, and the reinforcing members 19 are connected to the supporting frame 11 and used for reinforcing the joint of the supporting beam and the supporting frame.
As shown in fig. 6 and 8, the buffering connection seat includes a connection post and a connection plate, two ends of the connection post are connected to the supporting beam and the supporting frame, two groups of connection posts are arranged at intervals, a connection plate is arranged between the two groups of connection posts in a suspended manner, a suspended section of the connection plate is an impact deformed and inwards recessed part, the connection plate is arranged at intervals on the peripheral wall of a containing cavity of the lower supporting plate, a deformation compensation area is formed between the connection plate and the cavity wall of the containing cavity of the lower supporting plate, a connection structure which is just corresponding to the deformation compensation area and is used for connecting frame rails is included on the connection plate, namely, the connection structure 16 is a structure such as a connection hole or a connection bolt and is used for connecting the frame rails, and the position where the connection structure 16 is located is the external acting force position of the tray body when the frame rails are impacted; under the action of transverse impact, the frame longitudinal beam deforms, the connecting plate 15 deforms under the action of external force, and deforms towards the deformation compensation area, and the acting force is buffered.
The buffer connecting seat further comprises a buffer body, the buffer body can be an elastic piece or a damping piece, and the buffer body is arranged between the connecting column and the cavity wall of the accommodating cavity of the lower supporting plate; when the frame rail is deformed or impacted greatly, the connecting column 14 is bent or inclined, so that the connecting column invades towards the side wall of the tray body, and displacement and play of the connecting column towards the cavity wall of the accommodating cavity can be buffered and restrained through the buffer body.
As shown in fig. 7 and 8, the buffering body comprises a fixing plate and a buffering convex hull structure arranged on the fixing plate, the buffering convex hull structure 18 forms a secondary unloading force and deformation buffering structure, the buffering convex hull structure is formed by stamping and protruding a plate body of the fixing plate towards a connecting column, one side, deviating from the connecting column, of the buffering convex hull structure is a cavity body and forms a compensation cavity, the buffering convex hull structure is arranged corresponding to the connecting column and is used for compensating deformation invasion amount, buffering deformation and reducing impact acting force.
The buffer convex hull is internally provided with a pressure sensor for detecting whether the buffer convex hull structure is deformed or not so as to be convenient for maintaining or replacing the buffer connecting seat.
The spliced pole sets up between spliced pole 15 and holding chamber outer chamber wall, just the connecting plate is on a parallel with the plane that two spliced pole axes are located, the same curb plate face of spliced pole 15 is connected with the cylinder of two spliced poles, just connect through the connecting block between spliced pole 14 and the spliced pole 15, the torsion chamber 22 has been seted up along the axial link up of spliced pole on the connecting block, the connecting block has formed two torque arms 23 through the torque chamber, the connecting plate passes through the torque arm and connects on the spliced pole, receives the impact force at the connecting plate, when the connecting plate is deformed and is sunkenly towards deformation compensation district, is convenient for connecting plate and spliced pole junction through torque chamber and torque arm also take place to warp, torque chamber is used for providing the completion and the deformation of outside torque arm, reduces the circumference torsion effect of connecting plate to the spliced pole, and then reduces the torsional effect of spliced pole for supporting frame and spandrel girder, guarantees the relative position of spliced pole, guarantees the length of deformation compensation district in the deformation direction, avoids causing the space compression to deformation compensation district because of inwards the torsion of spliced pole.
The bearing frame contains the layer board portion that integrative set up, protects chamber portion and holds in the palm the bottom, layer board portion sets up and the bearing corresponding to layer board banding, protect chamber portion to set up corresponding to the lateral wall of holding chamber, hold in the palm the bottom and set up corresponding to the bottom of holding chamber, bearing frame 11 is the plate body structure of "Z" cross-section for carry out the strengthening protection to the bottom corner of tray body.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (10)

1. A battery box body of a blow-up plate stamping resistance welding structure is characterized in that: including the tray body, the tray body contains upper bracket board (1) and bottom plate (2), interval is equipped with in the upper bracket board outer fringe concave tray cavity (3) that are used for holding the group battery on upper bracket board (1), the upper bracket board outer fringe constitutes upper bracket board banding (4), interval is equipped with in the bottom plate outer fringe concave holding chamber that is used for holding tray cavity (3) on bottom plate (2), the bottom plate outer fringe constitutes bottom plate banding (5), the sealed laminating setting of upper bracket board banding and bottom plate banding, just the chamber wall in holding chamber sets up and constitutes the liquid cooling chamber with the bottom interval of tray cavity.
2. The battery case of an expansion plate stamping resistance welding structure according to claim 1, wherein: the liquid cooling runner (7) further comprises a plurality of inner supporting bodies (8), and the upper surface of each inner supporting body (8) supports the bottom wall of the tray concave cavity (3).
3. The battery case of an expansion plate stamping resistance welding structure according to claim 2, wherein: the inner support body (8) is an island-shaped protruding structure with the bottom wall of the accommodating cavity facing the inner protrusion of the accommodating cavity, and the island-shaped protruding structure is attached to the bottom wall of the tray concave cavity (3).
4. A battery box of a blow-up plate stamped resistance welding structure according to claim 3, wherein: and one side of the inner support body (8) corresponding to the bottom wall of the outer side of the lower support plate (2) forms an inward concave cavity (9), and the concave cavity (9) of the inner cavity is exposed to air.
5. The battery case of an expansion plate stamping resistance welding structure according to claim 1, wherein: the liquid cooling cavity is internally provided with at least one group of flow guide components (6), the liquid cooling cavity is divided into a plurality of liquid cooling secondary cavities through the flow guide components, the liquid cooling secondary cavities are communicated head and tail on the medium flow to form a liquid cooling flow channel (7), and two ends of the liquid cooling cavity corresponding to the liquid cooling flow channel (7) are respectively provided with a liquid inlet (71) and a liquid outlet (71).
6. The battery case of an expansion plate stamping resistance welding structure according to claim 1, wherein: the bottom of tray body sets up the bearing support, the bearing support is including corresponding bearing frame (11) and a plurality of support beams (12) that set up on tray body contour edge along tray body longitudinal distribution, the both ends that correspond on bearing frame (11) support beam (12) are provided with respectively along support beam length direction deformation buffering's buffering connecting seat (13), the tip of support beam (12) is passed through buffering connecting seat (13) and is connected on bearing frame (11).
7. The battery case of an expansion plate stamping resistance welding structure of claim 6, wherein: the buffer connecting seat (13) comprises connecting columns (14) and connecting plates (15), two ends of each connecting column are connected to a supporting beam (12) and a supporting frame (11), two groups of connecting columns (14) are arranged at intervals, the connecting plates (15) are arranged in a suspended bridging mode between the connecting columns, the intervals of the connecting plates (15) are arranged on the peripheral wall of a containing cavity of the lower supporting plate, a deformation compensation area is formed between the connecting plates (15) and the cavity wall of the containing cavity of the lower supporting plate, and the connecting plates (15) comprise connecting structures (16) which are corresponding to the deformation compensation area and are used for connecting frame longitudinal beams; under the action of transverse impact, the connecting plate deforms and is buffered towards the deformation compensation area.
8. The battery case of an expansion plate stamping resistance welding structure of claim 7, wherein: the buffer connecting seat (13) further comprises a buffer body, and the buffer body is arranged between the connecting column (14) and the cavity wall of the accommodating cavity of the lower supporting plate; the buffer body buffers and inhibits displacement movement of the connecting column (14) towards the cavity wall of the accommodating cavity.
9. The battery case of an expansion plate stamping resistance welding structure of claim 8, wherein: the buffer body comprises a fixed plate (17) and a buffer convex hull structure (18) arranged on the fixed plate (17), wherein the buffer convex hull structure is formed by stamping and protruding a plate body of the fixed plate towards the connecting column (14), one side, deviating from the connecting column (14), of the buffer convex hull structure (18) is a cavity, and the buffer convex hull structure (18) is opposite to the connecting column (14).
10. The battery case of an expansion plate stamping resistance welding structure of claim 6, wherein: the bearing frame (11) comprises a supporting plate part (11 a), a cavity protecting part (11 b) and a supporting bottom part (11 c) which are integrally arranged, the supporting plate part (11 a) is arranged corresponding to a supporting plate edge sealing (5) and supports the supporting plate edge sealing, the cavity protecting part (11 b) is arranged corresponding to the outer side wall of the accommodating cavity, and the supporting bottom part (11 c) is arranged corresponding to the bottom of the accommodating cavity.
CN202211405613.4A 2022-11-10 2022-11-10 Battery box body of blow-up plate stamping resistance welding structure Pending CN116053687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211405613.4A CN116053687A (en) 2022-11-10 2022-11-10 Battery box body of blow-up plate stamping resistance welding structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211405613.4A CN116053687A (en) 2022-11-10 2022-11-10 Battery box body of blow-up plate stamping resistance welding structure

Publications (1)

Publication Number Publication Date
CN116053687A true CN116053687A (en) 2023-05-02

Family

ID=86128366

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211405613.4A Pending CN116053687A (en) 2022-11-10 2022-11-10 Battery box body of blow-up plate stamping resistance welding structure

Country Status (1)

Country Link
CN (1) CN116053687A (en)

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