WO2022083534A1 - Structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement et boîtier de batterie correspondant - Google Patents

Structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement et boîtier de batterie correspondant Download PDF

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Publication number
WO2022083534A1
WO2022083534A1 PCT/CN2021/124355 CN2021124355W WO2022083534A1 WO 2022083534 A1 WO2022083534 A1 WO 2022083534A1 CN 2021124355 W CN2021124355 W CN 2021124355W WO 2022083534 A1 WO2022083534 A1 WO 2022083534A1
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WO
WIPO (PCT)
Prior art keywords
box
wall
plate
side beam
vertical
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PCT/CN2021/124355
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English (en)
Chinese (zh)
Inventor
邓江南
杜俊丰
刘晨南
尹振华
Original Assignee
江苏正力新能电池技术有限公司
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Application filed by 江苏正力新能电池技术有限公司 filed Critical 江苏正力新能电池技术有限公司
Publication of WO2022083534A1 publication Critical patent/WO2022083534A1/fr

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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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • 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
    • H01M50/242—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 against vibrations, collision impact or swelling
    • 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

Definitions

  • the present application relates to the technical field of battery packaging for battery packs, and in particular, to a box-reinforced side beam structure with buffers and a battery box thereof.
  • the physical strength and impact resistance of the battery pack are used.
  • the physical strength and impact resistance of the battery pack are provided by the battery case that houses the battery. Therefore, the physical strength and impact resistance of the battery box are very important.
  • a reinforcing beam structure is usually designed.
  • the reinforcing beam structures in the battery box are all fixed connections, and there are no shock-relieving components. When the car is hit, the impact force generated by the impact is transmitted to the battery through the reinforcing beam as usual, causing the battery to burst and cause a short circuit of the battery, or even Cause the battery to catch fire and explode.
  • the problem to be solved by the present invention is that the impact resistance strength of the power battery box is insufficient.
  • a box reinforced side beam structure with buffering includes a side beam arranged on the inner edge of the box and an elastic side beam that is withheld between the side beam and the box wall by the side beam; the The side beams are provided with waist-shaped holes, and are connected to the bottom of the box through bolts arranged in the waist-shaped holes, and are parallel to the box wall; the waist-shaped holes are perpendicular to the box wall in the length direction, so that the side beams are Under the action of external force, the side beam can be displaced toward the box wall; when the side beam is displaced toward the box wall, the side beam is supported by the elastic deformation of the elastic side beam.
  • the side beam is provided with a withholding slope for withholding the elastic side beam;
  • the elastic side beam is formed by bending a plate body, and is provided with The oblique bending plate is matched with the withholding inclined surface; the withholding inclined surface is closely attached to the oblique bending plate and is withheld on the oblique bending plate.
  • the side beam includes a top surface, a bottom surface, a first vertical surface, a crimping inclined surface and a second vertical surface; the first vertical surface is vertical and connects the sides The top surface of the beam, the second vertical surface is vertical and connected to the bottom surface; the first vertical surface and the second vertical surface are connected by a crimping inclined surface; the crimping inclined surface makes the top surface of the side beam wider than the bottom surface; the elastic edge
  • the beam includes a first bending plate, a second bending plate, a third bending plate, an oblique bending plate, a fifth bending plate and a sixth bending plate formed by bending the plate body in sequence; wherein , the first bending plate is vertical and close to the connecting end wall plate; the third bending plate is vertical and opposite to the first vertical surface of the side beam, and the fifth bending plate is vertical and is opposite to the first vertical surface of the side beam
  • the two vertical surfaces are arranged
  • a buffering gap is left between the third bending plate and the first vertical surface.
  • the second bending plate is a horizontal flat plate.
  • the second vertical surface of the side beam is closely connected to the fifth bending plate.
  • the box body is provided with an L-shaped ledge;
  • the L-shaped ledge includes a horizontal side panel and a vertical wall panel;
  • the horizontal side panels are connected
  • the bottom edge of the vertical wall panel makes the L-shaped wall frame an L-shaped structure;
  • the vertical wall panel constitutes the box wall;
  • the side beam and the elastic side beam are arranged on the horizontal side panel .
  • a battery box includes a main box body; the main box body includes a box bottom plate and four L-shaped wall brackets; the four L-shaped wall brackets are welded to each other through the inclined end faces of the L-shaped wall brackets.
  • the side wall frames include vertical side wall panels and the horizontal side wall side panel; the side wall side panel is connected to the bottom edge of the side wall panel, so that the side wall frame has an L-shaped structure; the two side wall frames are arranged opposite and parallel, and the side wall side panel faces the inside;
  • the frame includes a vertical end wall panel and a horizontal end wall side panel; the end wall side panel is connected to the bottom edge of the end wall panel, so that the end wall frame has an L-shaped structure; the two end wall frames are arranged opposite and parallel to each other, The end wall side panels face the inside; the
  • a middle beam is also arranged in the main box; the middle beam is parallel to the end wall frame and perpendicular to the side wall frame; the two ends of the middle beam are respectively erected on the side walls of the two side wall frames
  • the side plates are welded and connected with the side wall panels; the middle beam divides the cavity in the main box into several sub-cavities.
  • the thickness of the bottom plate of the box body is the same as that of the side wall edge plate and the end wall edge plate;
  • the bottom plate of the body is connected to the middle beam by welding.
  • the technical effect of the present invention is as follows: when the battery box of the present invention is installed on an automobile, the two end ledges are located at the front and rear respectively, so that the front and rear of the battery box are provided with a box-reinforced side beam structure with buffers.
  • the impact force that hits the box wall is transmitted to the side beam through the buffer, so that the impact force transmitted from the side beam to the battery in the battery box is greatly reduced.
  • the inclined end face connection between the L-shaped ledges so that the impact force of the impact is easily directed to the two sides of the frame.
  • FIG. 1 is a schematic top view of an embodiment of a battery box of the present invention.
  • FIG. 2 is an exploded schematic view of an embodiment of the battery box of the present invention.
  • FIG. 3 is a schematic three-dimensional structure diagram of a side wall frame.
  • Fig. 4 is a three-dimensional schematic diagram of the connection between the end ledge and the side beam.
  • Figure 5 is a structural exploded end view of the end ledge and side beam.
  • Figure 6 is an end view of the structural connection of the end ledge and side beam.
  • FIG. 7 is a schematic diagram of the deformation of the elastic side beam when the connection structure of the end ledge and the side beam is squeezed by an external force.
  • Figure 8 is an exploded top view of the structure of the end ledges and side beams.
  • Figure 9 is a top view of the connection between the side wall frame and the middle beam.
  • 2 is a side wall frame, 21 is a side wall panel, 22 is a side wall edge plate, 23 is a mounting block, 24 is a box fixing beam, and 242 is a box mounting hole;
  • 3 is the end wall bracket, 31 is the end wall panel, 32 is the end wall side panel, 329 is the side beam fixing hole, 33 is the first connection port;
  • 4 is the reinforced side beam structure, 41 is the side beam, 411 is the top surface, 412 is the bottom surface, 413 is the first vertical surface, 414 is the crimping slope, 415 is the second vertical surface, 416 is the inner side, and 419 is the side Beam mounting hole, 42 is the elastic side beam, 421 is the first bending plate, 422 is the second bending plate, 423 is the third bending plate, 424 is the oblique bending plate, 425 is the fifth bending plate, 426 is the sixth bending plate, 428 is the edge cavity, 429 is the bolt avoidance gap, and 43 is the buffer gap;
  • 5 is the middle beam, 51 is the triangular connection block;
  • 61 is the bottom plate of the control box, 62 is the side plate of the control box, 63 is the end plate of the control box, and 64 is the second wiring port;
  • 901 is the main box
  • 902 is the control box
  • 999 is the oblique end edge of the L-shaped ledge.
  • a battery box with a tailor-welded structure includes a main box body 901 and a control box 902 .
  • the main box 901 is used for accommodating the battery module of the battery pack, and includes the box bottom plate 1 and a right-angled quadrilateral frame surrounded by four L-shaped ledges.
  • the right-angled quadrilateral frame encloses an accommodating cavity for accommodating the battery module.
  • the box bottom plate 1 is located at the bottom of the accommodating cavity and is connected with four L-shaped ledges.
  • the L-shaped ledge includes an elongated horizontal side panel and an elongated vertical wall panel.
  • the horizontal side panel is connected to the bottom edge of the vertical wall panel, so that the L-shaped ledge has an elongated shape and an L-shaped cross-section. Both ends of the L-shaped ledge have inclined end surfaces 999, respectively. The inclined end face 999 is at an angle of 45 degrees.
  • the two L-shaped ledges are connected by welding between the inclined end faces 999 inclined at an angle of 45 degrees to form a right-angle structure.
  • the four L-shaped wall brackets are the side wall brackets 2 and the two end wall brackets 3 respectively.
  • the side wall frame 2 includes a side wall panel 21 and a side wall edge panel 22 which are integrally made of aluminum alloy profiles.
  • the side wall panels 21 are vertically arranged elongated panels, and the sidewall edge panels 22 are horizontally arranged elongated panels.
  • the side wall side panel 22 is connected to the bottom edge of the side wall panel 21, so that the cross section of the side wall frame 2 is an L-shaped structure.
  • the two side wall frames 2 are arranged opposite and parallel; wherein, the side wall panels 21 face the outside, and the side wall side panels 22 face the inside. Both ends of the two side wall brackets 2 are welded and connected to the two end wall brackets 3 through inclined end surfaces 999 respectively, and are perpendicular to the end wall brackets 3 .
  • a plurality of mounting blocks 23 are arranged on the side wall edge plate 22 .
  • the mounting block 23 is provided with screw holes for fixing the battery module placed in the main box 901 .
  • a box fixing beam 24 is connected to the outer side of the side wall panel 21 .
  • the box body fixing beam 24 and the side wall panel 21 are connected by welding.
  • the box fixing beam 24 is provided with a plurality of box mounting holes 242 for fixing the battery box.
  • the side wall wall panels 21 are the vertical wall panels of the aforementioned L-shaped wall frame
  • the side wall side panels 22 are the horizontal side panels of the aforementioned L-shaped wall frame.
  • the end wall bracket 3 referring to FIGS. 4 , 5 , 6 , 7 and 8 , includes an end wall panel 31 and an end wall side panel 32 integrally made of aluminum alloy profiles.
  • the end wall panel 31 is a vertically arranged elongated plate body, and the end wall side panel 32 is a horizontally arranged elongated plate body.
  • the end wall side panel 32 is connected to the bottom edge of the end wall panel 31 so that the end wall frame 3 has an L-shaped cross section.
  • the two end wall brackets 3 are arranged opposite and parallel; wherein, the end wall panel 31 faces the outer side, and the end wall side panel 32 faces the inner side.
  • Both ends of the two end wall brackets 3 are connected to the two side wall brackets 2 by welding through inclined end surfaces 999 respectively, and are perpendicular to the side wall brackets 2 .
  • the end wall wall panel 31 is the vertical wall plate of the aforementioned L-shaped wall bracket
  • the end wall side plate 32 is the horizontal side plate of the aforementioned L-shaped wall bracket.
  • the end wall edge panels 32 and the side wall edge panels 22 have the same thickness. After four L-shaped ledges are welded to form a right-angled quadrilateral frame, the top surfaces of the end wall side plates 32 and the side wall side plates 22 are flush with each other, and the bottom surfaces are flush with each other.
  • the thickness of the box bottom plate 1 is the same as the thickness of the end wall edge plate 32 and the side wall edge plate 22 .
  • the four sides of the box bottom plate 1 are respectively connected with the inner sides of the end wall edge plate 32 and the side wall edge plate 22 by welding, and the top surface of the box bottom plate 1 is flush with the top surface of the end wall edge plate 32 and the side wall edge plate 22
  • the bottom surface of the box bottom plate 1 is flush with the bottom surfaces of the end wall side plate 32 and the side wall side plate 22 .
  • the two end wall panels 31 and the two side wall panels 21 constitute the four-sided box walls of the main box body 901 .
  • the main box 901 is provided with a reinforcing beam structure.
  • the reinforced beam structure includes a reinforced side beam structure 4 and a middle beam 5 .
  • the reinforcement side beam structure 4 is a box body reinforcement beam structure with buffer, which is arranged on the end wall side plate 32 of the end wall frame 3, referring to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, including elastic side beams 42 and side beams 41.
  • the side beams 41 are made of aluminum alloy profiles, are elongated, and are parallel to the end wall panels 31, and the two ends are connected to the side wall frames 2 respectively, including the top surface 411, the bottom surface 412, the first vertical surface 413, the withholding The inclined surface 414 , the second vertical surface 415 and the inner side surface 416 .
  • the first vertical surface 413 is vertical and connects to the top surface 411 of the side beam 41
  • the second vertical surface 415 is vertical and connects to the bottom surface 412
  • the inner side surface 416 is vertical and connects to the top surface 411 and the bottom surface 412 respectively.
  • the first vertical surface 413 and the second vertical surface 415 are connected by a crimping inclined surface 414 .
  • the crimping inclined surface 414 is an inclined plane, so that the top surface 411 of the side beam 41 is wider than the bottom surface 412 , and a stepped groove is formed between the crimping inclined surface 414 and the second vertical surface 415 .
  • the bottom surface 412 of the side beam 41 is in close contact with the side plate 32 of the connecting end wall.
  • the crimping slope 414 is used for crimping the elastic side beam 42 .
  • the elastic side beam 42 is located between the side beam 41 and the end wall panel 31 , and is parallel to the end wall frame 3 .
  • the elastic side beam 42 is formed by bending the aluminum alloy plate body, including the first bending plate 421, the second bending plate 422, the third bending plate 423, the oblique Bending plate 424 , fifth bending plate 425 and sixth bending plate 426 .
  • the first bending plate 421 , the third bending plate 423 and the fifth bending plate 425 are vertical, the second bending plate 422 and the sixth bending plate 426 are horizontal, and the inclined bending plate 424 is inclined.
  • the first bending plate 421 , the second bending plate 422 , the third bending plate 423 , the oblique bending plate 424 , the fifth bending plate 425 and the sixth bending plate 426 enclose the edge cavity 428 .
  • the elastic side beam 42 is located between the side beam 41 and the end wall panel 31 , and the two sides are in close contact with the side beam 41 and the end wall panel 31 respectively.
  • the vertical first bending plate 421 is close to the inner side of the connecting end wall panel 31
  • the vertical third bending plate 423 is arranged opposite to the first vertical surface 413
  • the horizontal sixth bending plate The plate 426 is in close contact with the connecting end wall side plate 32
  • the vertical fifth bending plate 425 is arranged opposite to the second vertical surface 415 of the side beam 41
  • the withholding slope 414 of the side beam 41 is in close contact with and presses the elastic side beam 42
  • the inclined oblique bending plate 424 is provided between the side beam 41 and the end wall panel 31 , and the two sides are in close contact with the side beam 41 and the end wall panel 31 respectively.
  • the oblique bending plate 424 is matched with the crimping slope 414 of the side beam 41 .
  • the side beam 41 is crimped on the elastic side beam 42 and the elastic side beam 42 is crimped on the end wall panel 32 through the crimping and pressing of the crimping slope 414 of the side beam 41 to the obliquely bent plate 424 of the elastic side beam 42 so that the side beams 41 are also supported by the elastic side beams 42 .
  • the side beam 41 is fixed on the end wall side plate 32 by bolts, and then the elastic side beam 42 is buckled on the end wall frame 3 .
  • the side beams 41 are provided with side beam mounting holes 419
  • the end wall side plates 32 are provided with side beam fixing holes 329
  • the elastic side beams 42 are provided with bolt escape holes 429 .
  • the bolts for fixing the side beams 41 pass through the side beam mounting holes 419 and the bolts avoid the holes 429 and then connect to the side beam fixing holes 329 .
  • a buffer structure is formed between the side beam 41 and the elastic side beam 42 .
  • the beam mounting hole 419 is a waist-shaped hole, and the longitudinal direction of the waist-shaped hole is perpendicular to the end wall panel 31, so that when the side beam 41 is squeezed by the internal battery module, under the guidance of the waist-shaped hole
  • the end wall panel 31 of the end wall bracket 3 can be slidably displaced. For example, when the end wall bracket 3 is hit, the side beam 41 slides and displaces relative to the end wall bracket 3 toward the end wall panel 31 .
  • the buffer gap 43 constitutes a space in which the side beam 41 slides.
  • the elastic side beam 42 itself has elasticity.
  • the elastic side beam 42 When the side beam 41 slides and displaces toward the end wall panel 31 , the elastic side beam 42 is squeezed by the withholding inclined surface 414 and the second vertical surface 415 of the side beam 41 . , the elastic side beam 42 is deformed under the action of its own elasticity. Referring to FIG. 7 , after the elastic side beam 42 is deformed, the third bending plate 423 changes from vertical to inclined.
  • the second bending plate 422 is a horizontal flat plate connecting the first bending plate 421 and the third bending plate 423.
  • the second bending plate 422 may also be curved
  • the arc-shaped plate can even be a circular arc plate connecting the first bending plate 421 and the third bending plate 423 .
  • the second vertical surface 415 of the side beam 41 is closely connected to the fifth bending plate 425 .
  • a gap may also be left between the second vertical surface 415 and the fifth bending plate 425 .
  • the two ends of the side beam 41 and the side wall frame 2 can be connected by welding, or can be connected movably.
  • the middle beam 5 is arranged in the main box 901 , so that the cavity in the main box 901 is divided into several sub-cavities by the middle beam 5 .
  • the middle beam 5 there is one middle beam 5 , and the cavity in the main box 901 is divided into two sub-cavities by the middle beam 5 .
  • the middle beam 5 is parallel to the end wall bracket 3 and perpendicular to the side wall bracket 2 . Both ends of the middle beam 5 are respectively erected on the side wall side plates 22 of the two side wall frames 2 and connected to the side wall wall plates 21 by welding.
  • triangular connection blocks 51 are respectively provided on both sides of both ends of the middle beam 5 .
  • the end face of the middle beam 5 is connected to the side wall panel 21 by welding
  • the bottom surface of the middle beam 5 is connected to the side wall side plate 22 by welding
  • the end side of the middle beam 5 is connected to the triangular connecting block 51 by welding
  • the triangular connecting block 51 is connected to the side by welding.
  • the wall panels 21 are welded together.
  • the bottom of the middle beam 5 can also be connected to the bottom plate 1 of the box body by welding.
  • the control box 902 is used to accommodate components such as battery management unit modules, electrical components, and liquid cooling pipe joints of the battery pack.
  • the control box 902 is connected to the outside of one of the end wall brackets 3 .
  • the control box 902 includes a control box bottom plate 61 , two control box side plates 62 and a control box end plate 63 .
  • the two side panels 62 of the control box are vertically welded and connected to the end wall panel 31 of the end wall frame 3 .
  • the control box end plate 63 is parallel to the end wall plate 31, and the two ends are respectively welded to the control box side plate 62, so that the control box end plate 63, the two control box side plates 62 and the end wall plate 31 are enclosed for A cavity housing the battery management unit module.
  • the control box bottom plate 61 is arranged at the bottom of the cavity, and is welded to connect the control box end plate 63 , the two control box side plates 62 and the end wall plate 31 .
  • the control box 902 and the main box 901 communicate with each other through the first wiring port 33 provided on the end wall panel 31 . Therefore, the wire harness can pass through the first wiring port 33 to connect the battery management unit module in the control box 902 to the battery module and the temperature control mechanism in the main box 901 .
  • the control box end plate 63 is provided with a second connection port 64 for connecting the battery management unit module to an external mechanism.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne une structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement, et un boîtier de batterie correspondant. Le corps de boîtier du boîtier de batterie est entouré par quatre éléments de paroi en forme de L. Chaque structure de paroi en forme de L comprend une plaque latérale horizontale et une plaque de paroi verticale. Les plaques de paroi verticale constituent une paroi de boîtier. Les côtés internes de l'extrémité avant et de l'extrémité arrière du corps de boîtier sont pourvus d'une structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement. La présente structure de barres de renforcement de bord comprend des barres transversales latérales disposées sur les plaques latérales horizontales dans le corps de boîtier et des barres de bord élastique pressées entre les barres transversales latérales et la paroi de boîtier au moyen des barres transversales latérales. Les barres transversales latérales sont pourvues de trous en forme de rein, et sont reliées aux plaques latérales horizontales au moyen de boulons disposés à l'intérieur des trous en forme de rein. Les trous en forme de rein permettent aux barres transversales latérales de se déplacer vers la paroi de boîtier sous l'effet d'une force externe, et d'être supportées par déformation élastique des barres de bord élastique. Dans le présent boîtier de batterie, la structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement et la coopération d'éléments de paroi en forme de L et de liaisons de surface d'extrémité inclinées entre les éléments de paroi en forme de L sont utilisées pour réduire de manière significative la force d'impact transmise à la batterie dans le boîtier de batterie lorsque le boîtier de batterie subit un choc, ce qui permet de protéger la batterie.
PCT/CN2021/124355 2020-10-22 2021-10-18 Structure de barres de renforcement de bord de boîtier comprenant un élément d'amortissement et boîtier de batterie correspondant WO2022083534A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011141059.4A CN112234291B (zh) 2020-10-22 2020-10-22 一种带有缓冲的箱体强化边梁结构及其电池箱
CN202011141059.4 2020-10-22

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CN112234291B (zh) * 2020-10-22 2021-09-10 江苏塔菲尔动力系统有限公司 一种带有缓冲的箱体强化边梁结构及其电池箱
CN114824614B (zh) * 2022-04-12 2024-06-18 盐城国投中科新能源科技有限公司 一种启动电池
CN114976421B (zh) * 2022-06-24 2023-07-04 厦门金龙联合汽车工业有限公司 电池箱、滑板式底盘以及电动汽车

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CN209592120U (zh) * 2019-03-06 2019-11-05 河南森源重工有限公司 一种电池包和电池包箱体
CN210073962U (zh) * 2019-07-15 2020-02-14 宿州市艾尔新能源有限公司 一种电池pack装置
CN210805889U (zh) * 2019-11-29 2020-06-19 比亚迪股份有限公司 一种电池托盘、电池包以及车辆
CN112234291A (zh) * 2020-10-22 2021-01-15 江苏塔菲尔动力系统有限公司 一种带有缓冲的箱体强化边梁结构及其电池箱

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CN117086655A (zh) * 2023-10-19 2023-11-21 无锡星微科技有限公司杭州分公司 一种高精度微小型空气静压气浮转台
CN117086655B (zh) * 2023-10-19 2024-01-19 无锡星微科技有限公司杭州分公司 一种高精度微小型空气静压气浮转台

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