WO2024032659A1 - 托盘结构、电池模组及动力电池 - Google Patents

托盘结构、电池模组及动力电池 Download PDF

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Publication number
WO2024032659A1
WO2024032659A1 PCT/CN2023/112007 CN2023112007W WO2024032659A1 WO 2024032659 A1 WO2024032659 A1 WO 2024032659A1 CN 2023112007 W CN2023112007 W CN 2023112007W WO 2024032659 A1 WO2024032659 A1 WO 2024032659A1
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WO
WIPO (PCT)
Prior art keywords
pressure relief
battery
bottom plate
hole
structure according
Prior art date
Application number
PCT/CN2023/112007
Other languages
English (en)
French (fr)
Inventor
黄伟才
Original Assignee
湖北亿纬动力有限公司
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
Priority claimed from CN202222110532.3U external-priority patent/CN218039525U/zh
Priority claimed from CN202222110515.XU external-priority patent/CN218039631U/zh
Application filed by 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Publication of WO2024032659A1 publication Critical patent/WO2024032659A1/zh

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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
    • H01M50/204—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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/317—Re-sealable arrangements

Definitions

  • the present application relates to the field of battery technology, and in particular to a tray structure, a battery module and a power battery.
  • Cylindrical battery modules usually have a tray for installing cylindrical batteries.
  • the tray is made of die-cast or stamped aluminum.
  • This kind of pallet has the following problems: First, the entire pallet is processed at one time. Since the pallet structure is relatively complex, the mold cost is very high whether it is die-casting or stamping. Second, because the aluminum material is soft, the deformation after die-casting and stamping is relatively serious. , it is difficult to repair through subsequent machining. These deformations will directly affect the installation of module components and lead to assembly failure.
  • This application provides a tray structure, battery module and power battery to solve the above technical problems.
  • this application provides a pallet structure, including:
  • Base plate unit used to carry battery cells
  • a cross-beam assembly is connected to the base plate unit.
  • the cross-beam assembly is arranged around the battery core.
  • the cross-beam assembly includes a plurality of cross-beam bodies, at least two of the The cross-sections of the beam bodies are the same;
  • the base unit and the beam body are respectively integrally formed structures.
  • the present application also provides a battery module, including a battery core and the above-mentioned tray structure, and the battery core is installed on the tray structure.
  • the present application also provides a power battery, including a battery box and the above-mentioned battery module, and the battery module is installed in the battery box.
  • the crossbeam assembly includes multiple crossbeam bodies.
  • the bottom plate unit and the crossbeam assembly are spliced to form a pallet structure.
  • the bottom plate unit and the crossbeam body are processed separately to simplify the part structure; by combining the bottom plate unit and the crossbeam body
  • Separate settings and integral molding processing can simplify the mold, reduce mold costs, and reduce costs; compared with the overall pallet structure, the size of the parts is reduced and processing deformation is reduced to prevent subsequent assembly failures and improve product quality.
  • At least two cross-beam bodies have the same cross-section, and a larger-length cross-beam structure can be processed at one time, and then different cross-beam bodies can be cut into different sections through machining to reduce mold opening costs.
  • Figure 1 is a schematic structural diagram of a tray structure equipped with batteries provided by a specific embodiment of the present application
  • Figure 2 is a schematic structural diagram of a floor unit provided by a specific embodiment of the present application.
  • Figure 3 is an enlarged view of A in Figure 2;
  • FIG. 4 is an exploded view of the tray structure provided by the specific embodiment of the present application.
  • Figure 5 is an enlarged view of B in Figure 4.
  • Figure 6 is a side view of the first beam body provided by the specific embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of the battery module provided by this application.
  • Figure 8 is a schematic structural diagram of the pallet structure provided by the present application without showing the pressure relief sealing plate and part of the first enclosure plate;
  • Figure 9 is a partial enlarged view of C in Figure 8.
  • FIG 10 is another structural schematic diagram of the battery module provided by this application.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral body.
  • It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • the specific meanings of the above terms in this application may be understood based on specific circumstances.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • An embodiment of the present application provides a battery module, as shown in FIG. 1 , including a battery core 100 and a tray structure.
  • the battery core 100 is installed on the tray structure.
  • This embodiment also provides a pallet structure, as shown in Figure 1, including a bottom plate unit 1 and a cross beam assembly 2.
  • the bottom plate unit 1 is used to carry the battery core 100; the cross beam assembly 2 is connected to the bottom plate unit 1, and the battery core 100 is installed on When the bottom plate unit 1 is used, the cross beam assembly 2 is arranged around the battery core 100.
  • the cross beam assembly 2 includes a plurality of cross beam bodies, at least two of the cross beam bodies have the same cross-section.
  • the bottom plate unit 1 and the cross beam body are respectively one-piece structures.
  • the crossbeam assembly 2 includes multiple crossbeam bodies.
  • the base plate unit 1 and the crossbeam assembly 2 are spliced together to form a pallet structure.
  • the base plate unit 1 and the crossbeam body are processed separately to simplify the part structure.
  • This can simplify the mold, reduce mold expenses, and reduce costs; compared with the overall pallet structure, the size of the parts is reduced and processing deformation is reduced to prevent subsequent assembly failures and improve product quality.
  • At least two cross-beam bodies have the same cross-section, and a larger-length cross-beam structure can be processed at one time, and then different cross-beam bodies can be cut into different sections through machining to reduce mold opening costs.
  • the bottom plate unit 1 includes an upper bottom plate 11 and a lower bottom plate 12 that are connected to each other.
  • the battery core 100 is carried on the upper bottom plate 11.
  • the upper bottom plate 11 is provided with an upper pressure relief hole 112.
  • the pressure hole 112 is blocked with the battery core 100
  • the lower bottom plate 12 is provided with a lower pressure relief hole 121
  • a pressure relief space is provided between the upper bottom plate 11 and the lower bottom plate 12.
  • the pressure relief space passes through the upper pressure relief hole 112 and the lower pressure relief hole respectively.
  • 121 is connected to the outside.
  • multiple batteries 100 are provided.
  • the upper bottom plate 11 and the lower bottom plate 12 are connected through connecting ribs 13.
  • the connecting ribs 13 divide the pressure relief space into multiple pressure relief channels 1A.
  • the upper bottom plate 11 A plurality of upper pressure relief holes 112 are provided, and the lower bottom plate 12 is provided with a plurality of lower pressure relief holes 121.
  • Each pressure relief channel 1A is connected to an upper pressure relief hole 112 and a lower pressure relief hole 121.
  • multiple rows of battery cells 100 are provided, and multiple pressure relief channels 1A are arranged in parallel.
  • One pressure relief channel 1A is provided with a row of upper pressure relief holes 112, and a row of battery cells 100 is provided. Sharing a pressure relief channel 1A makes the structure more regular and uniform, convenient for structural layout, and good in appearance.
  • the bottom plate unit 1 is rectangular, and the beam components 2 are surrounded by a rectangular frame to ensure that all pressure relief channels 1A have the same length and have the same ability to discharge hot gases and substances when thermal runaway occurs.
  • the lower pressure relief hole 121 is connected to the pressure relief structure of the battery box to realize pressure relief of the battery module; in one embodiment, as shown in Figure 3, each pressure relief channel 1A is connected to a The lower pressure relief hole 121 is located at one end of the pressure relief channel 1A to facilitate the connection between the lower pressure relief hole 121 and the pressure relief structure on the battery box.
  • the battery core 100 is a cylindrical battery core 100. In other embodiments, it can also be a square battery core 100, etc., without limitation.
  • the upper pressure relief hole 112 is a round hole, and the upper pressure relief hole 112 is a round hole.
  • the opening size of the pressure hole 112 is no larger than the bottom surface size of the battery core 100; further, the battery core 100 is bonded to the base unit 1 to ensure installation reliability.
  • the bottom plate unit 1 and the beam body are processed by aluminum extrusion and then assembled.
  • the cost of the aluminum extrusion mold is low, which is beneficial to improving the price advantage of the product, and the beam processed by aluminum extrusion has small deformation, which can avoid pallet deformation. Serious Problem.
  • multiple beam bodies are extruded from the same set of aluminum extrusion dies, and then cut into different lengths to reduce mold opening costs; after that, holes or grooves are processed on the beam bodies as required.
  • the base unit 1 and the beam body are welded to ensure connection reliability.
  • the beam bodies are welded together to improve the connection reliability of the beam assembly 2, thus improving the reliability of the pallet structure.
  • the crossbeam body is snap-connected to the base plate unit 1.
  • the cross-beam body is snap-locked and positioned first, and then welded to ensure connection reliability. Further, after using a clamp to fix the base plate unit 1 and the cross beam body, the connection between the cross beam body and the base plate unit 1 is welded.
  • the crossbeam body is provided with two parallel protrusions along the extension direction of the crossbeam body, and the outer periphery of the bottom plate unit 1 is provided with a clamping groove.
  • the two protrusions and the two protruding grooves are The side walls are alternately arranged and snapped together, improving connection reliability.
  • the cross-beam assembly 2 includes two mutually parallel first cross-beam bodies 21 and two mutually parallel second cross-beam bodies 22, and the two first cross-beam bodies 21 and the two second cross-beam bodies 22 are connected end-to-end alternately.
  • the outer periphery of the base unit 1 includes two first card slots 1B and two second card slots 1C.
  • the shapes of the first card slots 1B and the second card slots 1C are different.
  • the first beam body 21 and the first card slot 1B are clamped.
  • the second beam body 22 and the second clamping slot 1C are locked.
  • the first convex strip 211 and the second convex strip 212 of the first cross beam body 21 are engaged with the first slot 1B
  • the third convex strip 221 and the fourth convex strip of the second cross beam body 22 are engaged with each other.
  • 222 is engaged with the second card slot 1C.
  • the shapes of the first latching groove 1B and the second latching groove 1C are different, so that the first convex strip 211 and the second convex strip 212 of the first cross beam body 21 are respectively different from the third convex strip of the second cross beam body 22. 221 and the fourth convex strip 222 have different cross sections.
  • a protrusion of the first beam body 21 and a side wall of the first slot 1B face each other.
  • One is provided with a boss 111 and the other is provided with a groove 2121.
  • the boss 111 is provided in the groove.
  • the two protrusions of the second beam body 22 and the two side walls of the second slot 1C facing each other are both flat surfaces.
  • the boss 111 and the groove 2121 can provide assembly positioning and improve assembly efficiency. .
  • the first protrusion 212 of the first beam body 21 is provided with a groove 2121 on one side facing the first side wall, and the first side wall of the first slot 1B faces the first protrusion 212 .
  • the boss 111 provided on one side improves the reliability of the snap connection and provides assembly positioning; during assembly, the first cross beam is inserted from one end of the floor unit to achieve the snap connection.
  • reinforcing ribs 214 are protruding from the beam body to improve structural strength.
  • the crossbeam body is also provided with an end plate 213, and the end plate 213 is provided with a slot 2131 to connect with the battery box and other structures.
  • This embodiment provides a battery module.
  • the high-temperature and high-pressure material sprayed from the battery core explosion-proof valve will not be sprayed to the other battery cell on the opposite side. on the battery core, thereby reducing the probability of heat spread in the battery module and improving the safety of the battery module.
  • the battery module includes a battery cell 100 and a tray structure.
  • the battery cell 100 includes a first battery cell 101 and a second battery cell 102;
  • the tray structure includes a base unit 1 and a partition 120.
  • the base unit 1 is provided with a pressure relief space
  • the partition 120 is fixed in the pressure relief space
  • the partition 120 separates the pressure relief space into a first pressure relief space and a second pressure relief space
  • the surface of the first pressure relief space is provided with
  • There is a first fixing hole 113, and a second fixing hole is provided on the surface of the second pressure relief space.
  • the first fixing hole 113 and the second fixing hole are arranged oppositely with respect to the partition 120, and the first battery core 101 is fixed in the first fixing hole 113.
  • the pressure relief valve of the first battery core 101 faces the first pressure relief space
  • the second battery core 102 is fixed to the second fixing hole
  • the pressure relief valve of the second battery core 102 faces the second pressure relief space.
  • the base unit 1 uses a partition 120 to divide the pressure relief space into a first pressure relief space and a second pressure relief space.
  • a first fixing hole 113 is provided on the surface of the first pressure relief space
  • a first fixing hole 113 is provided on the surface of the second pressure relief space.
  • the second fixing hole, and the first fixing hole 113 and the second fixing hole are arranged oppositely with respect to the partition 120, the first battery core 101 is fixed in the fixing hole and the pressure relief valve of the first battery core 101 is arranged toward the first pressure relief space,
  • the second battery core 102 is fixed to the second fixing hole and the pressure relief valve of the second battery core 102 is disposed toward the second pressure relief space, thereby separating the first battery core 101 and the second battery core located on opposite sides of the pressure relief space.
  • the high-temperature and high-pressure material in the housing of the first battery core 101 is ejected from the pressure relief valve of the first battery core 101 and into the first pressure relief space, without It will be sprayed onto the second battery core 102.
  • the second battery core 102 undergoes thermal runaway. This prevents the high-temperature and high-pressure material in the shell of one battery core from being sprayed onto the other battery core on the opposite side.
  • a problem with the battery core reduces the probability of heat spread in the battery module and effectively improves the safety of the battery module.
  • the tray structure also includes a pressure relief sealing plate 170.
  • the pressure relief space is provided with an opening.
  • the pressure relief sealing plate 170 blocks the opening of the pressure relief space and is connected to the pressure relief space. The edges of the opening are welded to simplify the production process of the base unit 1 .
  • the number of the first battery cores 101 and the first fixing holes 113 is multiple and corresponds one to one, and the multiple first fixing holes 113 are arranged in multiple columns, and the bottom plate unit 1 also includes a first baffle 131, which is fixed in the first pressure relief space, and the first baffle 131 divides the first pressure relief space into a plurality of first pressure relief channels 141, each first pressure relief channel 141.
  • Each of the pressure relief channels 141 is provided with a row of first fixing holes 113.
  • the first baffle 131 is used to divide the first pressure relief space into a plurality of first pressure relief channels 141.
  • the arrangement of the first baffle 131 improves the structural strength of the side wall of the first pressure relief space, thereby improving the reliability and stability of the base unit 1 for carrying the first battery core 101 .
  • the base unit 1 also includes The second baffle 132 is fixed in the second pressure relief space, and the second baffle 132 divides the second pressure relief space into a plurality of second pressure relief channels 142, each second pressure relief channel A row of second fixing holes are respectively provided in 142, and the second baffle 132 is used to divide the second pressure relief space into a plurality of second pressure relief channels 142.
  • the reduction of The probability that the high-temperature and high-pressure material ejected from the second battery cell 102 will be sprayed onto other adjacent second battery cells 102 further reduces the probability of heat spread problems in the battery module, and has the effect of further improving the safety of the battery module.
  • the arrangement of the second baffle 132 improves the structural strength of the side wall of the second pressure relief space, thereby improving the reliability and stability of the base unit 1 for carrying the second battery core 102 .
  • each first pressure relief channel 141 are provided with first pressure relief holes 151 , so that high-temperature and high-pressure substances ejected from the first battery core 101 can pass through the first pressure relief holes 151 .
  • the pressure hole 151 discharges the first pressure relief channel 141.
  • the side wall of each second pressure relief channel 142 is provided with a second pressure relief hole 152. The high-temperature and high-pressure substances ejected from the second battery core 102 can pass through the second pressure relief hole 152.
  • the hole 152 discharges the second pressure relief channel 142 to avoid the problem of deformation or even explosion of the base unit 1 caused by the accumulation of high-temperature and high-pressure substances in the first pressure relief channel 141 and/or the second pressure relief channel 142, which has the effect of further improving Effect of battery module safety.
  • the crossbeam assembly 2 also includes a first enclosure structure 160.
  • the first enclosure structure 160 is formed around the outer periphery of the first fixing hole 113 to form a first glue injection groove.
  • the glue injection groove is used to inject glue to fix the first battery core 101 to the first fixing hole 113 so that the glue fixing the first battery core 101 has a certain thickness to improve the stability of fixing the first battery core 101 .
  • the first enclosure structure 160 includes a plurality of first enclosures 161 and a plurality of second enclosures 162, and the first enclosures 161 and the second enclosures 162 are staggered,
  • the first enclosure 161 is in the shape of a flat plate
  • the second enclosure 162 is in the shape of a triangular prism.
  • the triangular prism-shaped second enclosure 162 has a higher structural strength, and this structural arrangement can improve the reliability of the first glue injection tank enclosure colloid. and uniformity.
  • the base unit 1 is roughly in the shape of a rectangular parallelepiped.
  • the two first enclosures 161 are respectively located on the two short sides of the base unit 1.
  • the two second enclosures 162 are respectively located on both sides of the base unit 1.
  • the base unit 1 can also have other shapes, which can be determined according to the actual situation.
  • the crossbeam assembly 2 further includes a second enclosure structure.
  • the second enclosure structure is arranged around the periphery of the second fixing hole to form a second glue injection groove.
  • the second glue injection groove is used to inject glue to seal the second battery core.
  • 102 is fixed to the second fixing hole so that the glue fixing the second battery core 102 has a certain thickness to improve the stability of fixing the second battery core 102 .
  • the second enclosure structure includes a plurality of third enclosure panels and a plurality of fourth enclosure panels, and the third enclosure panels and the fourth enclosure panels are staggered.
  • the third enclosure panels are in the shape of a flat plate, and the fourth enclosure panels are in the shape of three.
  • the prismatic and triangular prism-shaped fourth enclosure structure has high strength, and this structural arrangement can improve the reliability and uniformity of the second glue injection tank enclosure colloid.
  • the bottom plate unit 1 is roughly in the shape of a rectangular parallelepiped , the two third enclosure panels are respectively located on the two short sides of the floor unit 1, and the two fourth enclosure panels are respectively located on the two long sides of the floor unit 1.
  • the floor unit 1 can also be other The shape can be determined according to the actual situation.
  • the above-mentioned second enclosure 162, fourth enclosure, floor unit 1, partition 120, first baffle 131 and second baffle 132 are of an integrated structure and are made by aluminum extrusion process.
  • the production cost of the extrusion process is low, and the structural strength of the aluminum extrusion process products is high. Therefore, the second enclosure 162, the fourth enclosure, the base unit 1, the partition 120, the first baffle 131 and the second
  • the baffle 132 is designed as an integrated structure and is made using an aluminum extrusion process, which is beneficial to reducing the production cost of the pallet structure, thereby making the battery module products and power battery products using this pallet structure have a better price advantage.
  • it also The tray structure can be made to have high structural strength.
  • the tray structure When assembling the tray structure, the first cell group and the second cell group, the tray structure is not easily deformed, thereby improving the assembly quality and assembly efficiency of the battery module. Further, the first enclosure plate 161 and the second enclosure plate 162 are welded and fixed to form the first enclosure structure 160, and the third enclosure plate and the fourth enclosure plate are welded and fixed to form the second enclosure structure.
  • an insulating fireproof paint layer is provided on the outside of the pallet structure to protect the outer surface of the pallet structure.
  • the pallet structure has better insulation and fire resistance, which further improves the safety of the battery module. protective effect.
  • the pallet structure is dipped in insulating fire retardant paint.
  • This embodiment also provides a power battery, which has high safety.
  • the power battery includes a battery box and the above-mentioned battery module.
  • the battery module is installed in the battery box. When a certain cell in the battery module undergoes thermal runaway, the probability of heat spread is low, thereby effectively The safety of the power battery is improved.
  • the first pressure relief hole 151 is located at one end of the first pressure relief channel 141
  • the second pressure relief hole 152 is located at one end of the second pressure relief channel 142
  • the first pressure relief hole 152 is located at one end of the second pressure relief channel 142 .
  • the hole 151 and the second pressure relief hole 152 are coaxially arranged.
  • the battery box is provided with a box pressure relief hole.
  • the first pressure relief hole 151, the second pressure relief hole 152 and the box pressure relief hole are connected to allow the first pressure relief hole.
  • the high-temperature and high-pressure substances in the channel 141 can be discharged from the battery box through the first pressure relief hole 151 and the box pressure relief hole in sequence.
  • the high-temperature and high-pressure materials in the second pressure relief channel 142 can be discharged from the battery box through the second pressure relief hole 152 and the box pressure relief hole in sequence.
  • the pressure hole discharges the battery box to prevent high-temperature and high-pressure substances from gathering in the battery box and causing the battery box to deform or even explode, thereby improving the safety of the power battery.
  • the first baffle 131 and the second baffle 132 are omitted, the first pressure relief hole 151 can also be provided in the first pressure relief space, and the first pressure relief hole 151 can be provided in the second pressure relief space.
  • the second pressure relief hole 152 is provided so that the first pressure relief hole 151, the second pressure relief hole 152 and the box pressure relief hole are connected, so that the high-temperature and high-pressure substances in the first pressure relief space can pass through the first pressure relief hole 151.
  • the battery box is discharged from the battery box through the box pressure relief hole, and the high-temperature and high-pressure substances in the second pressure relief space are discharged from the battery box through the second pressure relief hole 152 and the box pressure relief hole.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了一种托盘结构、电池模组及动力电池，属于电池技术领域。托盘结构包括底板单元和横梁组件，底板单元用于承载电芯；横梁组件连接于底板单元，电芯安装于底板单元时，横梁组件围设于电芯四周，横梁组件包括多个横梁本体，至少两个横梁本体的横截面相同；底板单元和横梁本体分别为一体成型结构。

Description

托盘结构、电池模组及动力电池
本申请要求在2022年8月11日提交中国专利局、申请号为202222110515.X、202222110532.3的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，尤其涉及一种托盘结构、电池模组及动力电池。
 背景技术
圆柱电芯模组通常设有用于安装圆柱电芯的托盘，出于减重和方便机加工等因素考虑，托盘采用压铸或者冲压铝材托盘。这种托盘存在以下问题：一是整个托盘一次性加工出来，由于托盘结构比较复杂，不管是压铸还是冲压，模具费用都很高；二是由于铝材材质偏软，压铸和冲压后变形相对严重，很难通过后续机加工来修整，这些变形会直接影响模组零部件的安装，导致装配失效。
 发明概述
本申请提供一种托盘结构、电池模组及动力电池来解决上述技术问题。
第一方面，本申请提供了一种托盘结构，包括：
底板单元，用于承载电芯；
横梁组件，连接于所述底板单元，所述电芯安装于所述底板单元时，所述横梁组件围设于所述电芯四周，所述横梁组件包括多个横梁本体，至少两个所述横梁本体的横截面相同；
所述底板单元和所述横梁本体分别为一体成型结构。
第二方面，本申请还提供了一种电池模组，包括电芯和上述的托盘结构，所述电芯安装于所述托盘结构。
第三方面，本申请还提供了一种动力电池，包括电池箱和上述的电池模组，所述电池模组安装于所述电池箱内。
有益效果
本申请提供的一种托盘结构及电池模组，横梁组件包括多个横梁本体，底板单元和横梁组件拼接形成托盘结构，单独加工底板单元和横梁本体，简化零件结构；通过将底板单元和横梁本体分开设置并分别一体成型加工，从而能够简化模具，降低模具费用，降低成本；相对于托盘结构整体，减小了零部件尺寸，减少加工变形，以防止后续装配失效，提高产品质量。至少两个横梁本体的横截面相同，可一次性加工出一个长度较大的横梁结构，之后机加工分截出不同横梁本体，以减少开模成本。
 附图说明
图1是本申请的具体实施方式提供的托盘结构安装有电芯的结构示意图；
图2是本申请的具体实施方式提供的底板单元的结构示意图；
图3是图2的A处放大图；
图4是本申请的具体实施方式提供的托盘结构的爆炸图；
图5是图4的B处放大图；
图6是本申请的具体实施方式提供的第一横梁本体的侧视图；
图7是本申请提供的电池模组的一结构示意图；
图8是本申请提供的托盘结构未显示泄压密封板和部分第一围板的结构示意图；
图9是图8中C处局部放大图；
图10是本申请提供的电池模组的又一结构示意图。
附图标记列表：
100、电芯；101、第一电芯；102、第二电芯；1、底板单元；11、上底板；111、凸台；112、上泄压孔；12、下底板；121、下泄压孔；113、第一固定孔；120、隔板；131、第一挡板；132、第二挡板；141、第一泄压通道；142、第二泄压通道；151、第一泄压孔；152、第二泄压孔；160、第一围挡结构；161、第一围板；162、第二围板；170、泄压密封板；13、连接筋骨；1A、泄压通道；1B、第一卡槽；1C、第二卡槽；2、横梁组件；21、第一横梁本体；211、第一个凸条；212、第二个凸条；2121、凹槽；213、端板；2131、槽孔；214、加强筋骨； 22、第二横梁本体；221、第三个凸条；222、第四个凸条。
 本发明的实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“右”、等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
实施例1
本申请实施例提供一种电池模组，如图1所示，包括电芯100和托盘结构，电芯100安装于托盘结构。本实施例还提供了一种托盘结构，如图1所示，包括底板单元1和横梁组件2，底板单元1用于承载电芯100；横梁组件2连接于底板单元1，电芯100安装于底板单元1时，横梁组件2围设于电芯100四周，横梁组件2包括多个横梁本体，至少两个横梁本体的横截面相同，底板单元1和横梁本体分别为一体成型结构。
横梁组件2包括多个横梁本体，底板单元1和横梁组件2拼接形成托盘结构，单独加工底板单元1和横梁本体，简化零件结构；通过将底板单元1和横梁本体分开设置并分别一体成型加工，从而能够简化模具，降低模具费用，降低成本；相对于托盘结构整体，减小了零部件尺寸，减少加工变形，以防止后续装配失效，提高产品质量。至少两个横梁本体的横截面相同，可一次性加工出一个长度较大的横梁结构，之后机加工分截出不同横梁本体，以减少开模成本。
可选地，如图2和图3所示，底板单元1包括相互连接的上底板11和下底板12，电芯100承载于上底板11，上底板11设有上泄压孔112，上泄压孔112上封堵有电芯100，下底板12设有下泄压孔121，上底板11和下底板12之间设有泄压空间，泄压空间分别通过上泄压孔112和下泄压孔121与外部连通，电芯100发生热失控时，热气体及物质等从电芯100相应的上泄压孔112通过泄压空间和下泄压孔121排出，能够有效阻止热蔓延，提高了可靠性。
可选地，如图3所示，设有多个电芯100，上底板11和下底板12通过连接筋骨13连接，连接筋骨13将泄压空间分隔为多个泄压通道1A，上底板11设有多个上泄压孔112，下底板12设有多个下泄压孔121，每个泄压通道1A各自连通有上泄压孔112和下泄压孔121，电芯100发生热失控时，热气体及物质等通过相应的上泄压孔112、泄压通道1A即下泄压孔121排出，当不同电芯100发生热失控时通过各自连通的泄压通道1A排出，避免一个电芯100发生热失控而引发所有电芯100热失控，进一步阻止了电芯100的热蔓延。
可选地，如图1和图2所示，设有多排电芯100，多个泄压通道1A平行设置，一个泄压通道1A上设有一排上泄压孔112，一排电芯100共用一个泄压通道1A，使结构更规整均匀，方便结构布局，美观性好。进一步地，底板单元1呈矩形，横梁组件2围设形成矩形框架，保证所有泄压通道1A长度相同，发生热失控时具有相同的排出热气体及物质等能力。
示例性地，通过下泄压孔121与电池箱体的泄压结构连接，以实现电池模组的泄压；在一种实施方式中，如图3所示，每个泄压通道1A连通有一个下泄压孔121，且下泄压孔121位于泄压通道1A的一端，方便下泄压孔121与电池箱体上的泄压结构相对接。
示例性地，如图1所示，电芯100为圆柱电芯100，其他实施例中也可以是方形电芯100等，不进行限定，相应地，上泄压孔112为圆孔，上泄压孔112的开孔尺寸不大于电芯100的底面尺寸；进一步地，电芯100粘接于底板单元1，以保证安装可靠性。
可选地，底板单元1和横梁本体均通过铝挤加工，之后拼装而成，铝挤模具成本低，有利于提升产品的价格优势，并且铝挤加工出来的横梁变形量小，可以避免托盘变形严重问题。可选地，多个横梁本体通过同一套铝挤模具铝挤加工出来，再切成不同长度，以减少开模成本；之后，根据需求在横梁本体上加工孔或槽等。
可选地，底板单元1和横梁本体之间焊接以保证连接可靠性。可选地，横梁本体之间焊接，提高了横梁组件2的连接可靠性，从而提高了托盘结构的可靠性。
可选地，横梁本体与底板单元1卡接，组装时先卡接定位，后焊接以保证连接可靠性。进一步地，使用夹具固定住底板单元1和横梁本体后，焊接横梁本体和底板单元1之间的连接处。
可选地，如图3-图6所示，横梁本体沿横梁本体的延伸方向设有两个平行的凸条，底板单元1的外周设有卡槽，两个凸条和卡槽的两个侧壁交替设置并卡接，提高了连接可靠性。示例性地，横梁组件2包括两个相互平行的第一横梁本体21和两个相互平行的第二横梁本体22，且两个第一横梁本体21和两个第二横梁本体22依次交替首尾连接；底板单元1的外周包括两个第一卡槽1B和两个第二卡槽1C，第一卡槽1B和第二卡槽1C的形状不同，第一横梁本体21和第一卡槽1B卡接，第二横梁本体22和第二卡槽1C卡接。示例性地，第一横梁本体21的第一个凸条211和第二个凸条212与第一卡槽1B卡接，第二横梁本体22的第三个凸条221和第四个凸条222与第二卡槽1C卡接。第一卡槽1B和第二卡槽1C的槽体形状不同，使第一横梁本体21的第一个凸条211和第二个凸条212分别和第二横梁本体22的第三个凸条221和第四个凸条222的横截面不同。
示例性地，第一横梁本体21的一个凸条和第一卡槽1B的一个侧壁朝向彼此的一侧，一个设有凸台111，另一个设有凹槽2121，凸台111设于凹槽2121内；第二横梁本体22的两个凸条和第二卡槽1C的两个侧壁朝向彼此的一侧均为平面，凸台111和凹槽2121能够提供装配定位，提高了装配效率。
示例性地，第一横梁本体21的第一个凸条212朝向第一个侧壁的一侧设有凹槽2121，第一卡槽1B的第一个侧壁朝向第一个凸条212的一侧设有凸台111提高了卡接的可靠性，且提供了装配定位；组装时第一横梁从地板单元的一端插入，以实现卡接。
可选地，如图6所示，横梁本体凸设有加强筋骨214，以提高结构强度。
可选地，如图6所示，横梁本体还设有端板213，端板213上设有槽孔2131，以与电池箱体等结构连接。
实施例2
本实施例提供一种电池模组，当该电池模组中的一个电芯发生热失控时，从该电芯防爆阀喷出的高温高压物质不会喷射到该电芯对面一侧的另一个电芯上，进而降低了电池模组发生热蔓延的几率，提高了电池模组的安全性。
具体地，如图7至图10所示，该电池模组包括电芯100和托盘结构，电芯100包括第一电芯101和第二电芯102；托盘结构包括底板单元1和隔板120，底板单元1设有泄压空间，隔板120固定于泄压空间内，且隔板120将泄压空间分隔为第一泄压空间和第二泄压空间，第一泄压空间的表面设有第一固定孔113，第二泄压空间的表面设有第二固定孔，第一固定孔113与第二固定孔关于隔板120相对设置，第一电芯101固定于第一固定孔113，且第一电芯101的泄压阀朝向第一泄压空间，第二电芯102固定于第二固定孔，且第二电芯102的泄压阀朝向第二泄压空间。
该底板单元1采用隔板120将泄压空间分隔为第一泄压空间和第二泄压空间，在第一泄压空间的表面设置第一固定孔113，在第二泄压空间的表面设置第二固定孔，且第一固定孔113与第二固定孔关于隔板120相对设置，第一电芯101固定于固定孔且第一电芯101的泄压阀朝向第一泄压空间设置，第二电芯102固定于第二固定孔且第二电芯102的泄压阀朝向第二泄压空间设置，由此将位于泄压空间相对两侧的第一电芯101和第二电芯102隔开，当第一电芯101发生热失控时，第一电芯101壳体内的高温高压物质由第一电芯101的泄压阀喷出并喷入第一泄压空间内，而不会喷射到第二电芯102上，当第二电芯102发生热失控时同理，进而避免了当一个电芯发生热失控后，其壳体内的高温高压物质喷射到与其相对一侧的另一个电芯上的问题，降低了电池模组发生热蔓延的几率，有效提高了电池模组的安全性。
可选地，如图7至图10所示，托盘结构还包括泄压密封板170，泄压空间设有开口，泄压密封板170封堵于泄压空间的开口处，并与泄压空间开口的边沿焊接，以简化底板单元1的生产工艺。
可选地，如图7至图10所示，第一电芯101和第一固定孔113的数量均为多个且一一对应，多个第一固定孔113成多列排布，底板单元1还包括第一挡板131，第一挡板131固定于第一泄压空间内，且第一挡板131将第一泄压空间分隔为多个第一泄压通道141，每个第一泄压通道141内分别设有一列第一固定孔113，采用第一挡板131将第一泄压空间分隔为多个第一泄压通道141，当某个第一电芯101发生热失控时，降低由该第一电芯101喷出的高温高压物质喷射到与其相邻的其他第一电芯101上的几率，进一步降低了电池模组发生热蔓延问题的几率，具有进一步提高电池模组安全性的效果。另一方面，第一挡板131的设置提高了第一泄压空间腔体侧壁的结构强度，进而提高了底板单元1承载第一电芯101的可靠性和稳定性。
进一步地，如图7至图10所示，第二电芯102和第二固定孔的数量均为多个且一一对应，多个第二固定孔成多列排布，底板单元1还包括第二挡板132，第二挡板132固定于第二泄压空间内，且第二挡板132将第二泄压空间分隔为多个第二泄压通道142，每个第二泄压通道142内分别设有一列第二固定孔，采用第二挡板132将第二泄压空间分隔为多个第二泄压通道142，当某个第二电芯102发生热失控时，降低由该第二电芯102喷出的高温高压物质喷射到与其相邻的其他第二电芯102上的几率，进一步降低了电池模组发生热蔓延问题的几率，具有进一步提高电池模组安全性的效果。另一方面，第二挡板132的设置提高了第二泄压空间腔体侧壁的结构强度，进而提高了底板单元1承载第二电芯102的可靠性和稳定性。
进一步地，如图7至图10所示，每个第一泄压通道141的侧壁均设有第一泄压孔151，由第一电芯101喷出的高温高压物质能够通过第一泄压孔151排出第一泄压通道141，每个第二泄压通道142的侧壁均设有第二泄压孔152，由第二电芯102喷出的高温高压物质能够通过第二泄压孔152排出第二泄压通道142，避免因高温高压物质聚集在第一泄压通道141内和/或第二泄压通道142内而引起的底板单元1发生变形甚至爆裂的问题，具有进一步提高电池模组安全性的效果。
可选地，如图7至图10所示，横梁组件2还包括第一围挡结构160，第一围挡结构160围设于第一固定孔113的外周形成第一注胶槽，第一注胶槽用于注入胶体将第一电芯101固定于第一固定孔113，使得固定第一电芯101的胶体具有一定的厚度，以提高固定第一电芯101的稳定性。
进一步地，如图7至图10所示，第一围挡结构160包括多个第一围板161和多个第二围板162，且第一围板161与第二围板162交错设置，第一围板161呈平板状，第二围板162呈三棱柱状，三棱柱状的第二围板162结构强度较高，进而该结构设置能够提高第一注胶槽围挡胶体的可靠性和均匀性，在本实施例中，底板单元1大致呈长方体状，两个第一围板161分别位于底板单元1的两个短边，两个第二围板162分别位于底板单元1的两个长边，当然，在其他实施方案中，底板单元1还可以是其他形状，根据实际情况而定即可。
可选地，横梁组件2还包括第二围挡结构，第二围挡结构围设于第二固定孔的外周形成第二注胶槽，第二注胶槽用于注入胶体将第二电芯102固定于第二固定孔，使得固定第二电芯102的胶体具有一定的厚度，以提高固定第二电芯102的稳定性。
进一步地，第二围挡结构包括多个第三围板和多个第四围板，且第三围板与第四围板交错设置，第三围板呈平板状，第四围板呈三棱柱状，三棱柱状的第四围板结构强度较高，进而该结构设置能够提高第二注胶槽围挡胶体的可靠性和均匀性，在本实施例中，底板单元1大致呈长方体状，两个第三围板分别位于底板单元1的两个短边，两个第四围板分别位于底板单元1的两个长边，当然，在其他实施方案中，底板单元1还可以是其他形状，根据实际情况而定即可。
进一步地，上述第二围板162、第四围板、底板单元1、隔板120、第一挡板131以及第二挡板132为一体式结构，且采用铝挤压工艺制成，铝挤压工艺成产成本较低，且铝挤压工艺制品的结构强度较高，因此，将第二围板162、第四围板、底板单元1、隔板120、第一挡板131以及第二挡板132设计为一体式结构并采用铝挤压工艺制成有利于降低托盘结构的生产成本，进而使得采用该托盘结构的电池模组产品和动力电池产品具有较好的价格优势，另外，还能够使得该托盘结构具有较高的结构强度，在组装托盘结构、第一电芯组以及第二电芯组时，该托盘结构不易发生变形，提高了电池模组的组装质量和组装效率。进一步地，第一围板161与第二围板162焊接固定以形成第一围挡结构160，第三围板与第四围板焊接固定以形成第二围挡结构。
可选地，托盘结构的外侧设有绝缘防火漆层，对托盘结构的外表面起到保护作用，同时使得托盘结构具有较好的绝缘性和防火性，为电池模组的安全性起到了进一步的保障作用。
下面就本实施例提供的托盘结构的制作工艺做简要说明：
S1、采用铝挤压工艺制成第二围板162、第四围板、底板单元1、隔板120、第一挡板131以及第二挡板132；
S2、开设第一固定孔113、第二固定孔、第一泄压孔151以及第二泄压孔152；
S3、焊接泄压密封板170、第一围板161以及第三围板；
S4、托盘结构浸绝缘防火漆。
本实施例还提供一种动力电池，该动力电池具有较高的安全性。
具体地，该动力电池包括电池箱以及上述的电池模组，电池模组安装于电池箱内，当电池模组中的某一个电芯发生热失控时，发生热蔓延的几率较低，进而有效提高了该动力电池的安全性。
可选地，如图7至图10所示，第一泄压孔151位于第一泄压通道141的一端，第二泄压孔152位于第二泄压通道142的一端，且第一泄压孔151与第二泄压孔152同轴设置，电池箱设有箱体泄压孔，第一泄压孔151、第二泄压孔152以及箱体泄压孔相连通，使第一泄压通道141内的高温高压物质能够依次通过第一泄压孔151和箱体泄压孔排出电池箱、第二泄压通道142内的高温高压物质能够依次通过第二泄压孔152和箱体泄压孔排出电池箱，防止高温高压物质聚集在电池箱内而引发电池箱变形甚至炸裂的问题，提高了动力电池的安全性。可以理解的是，在其他实施方案中，若省去了第一挡板131和第二挡板132，同样可以在第一泄压空间设置第一泄压孔151，并在第二泄压空间设置第二泄压孔152，使得第一泄压孔151、第二泄压孔152以及箱体泄压孔相连通，实现将第一泄压空间内的高温高压物质通过第一泄压孔151和箱体泄压孔排出电池箱、将第二泄压空间内的高温高压物质通过第二泄压孔152和箱体泄压孔排出电池箱的效果。

Claims (20)

  1. 一种托盘结构，包括：
    底板单元（1），用于承载电芯（100）；
    横梁组件（2），连接于所述底板单元（1），所述电芯（100）安装于所述底板单元（1）时，所述横梁组件（2）围设于所述电芯（100）四周，所述横梁组件（2）包括多个横梁本体，至少两个所述横梁本体的横截面相同；
    所述底板单元（1）和所述横梁本体分别为一体成型结构。
  2. 根据权利要求1所述的托盘结构，其中，
    所述底板单元（1）和所述横梁本体均通过铝挤加工；和/或
    所述底板单元（1）和所述横梁本体之间焊接；和/或
    所述横梁本体之间焊接。
  3. 根据权利要求1所述的托盘结构，其中，所述横梁本体与所述底板单元（1）卡接。
  4. 根据权利要求3所述的托盘结构，其中，所述横梁本体沿所述横梁本体的延伸方向设有两个平行的凸条，所述底板单元（1）的外周设有卡槽，两个所述凸条和所述卡槽的两个侧壁交替设置并卡接。
  5. 根据权利要求4所述的托盘结构，其中，所述横梁组件（2）包括两个相互平行的第一横梁本体（21）和两个相互平行的第二横梁本体（22），所述底板单元（1）的外周包括两个第一卡槽（1B）和两个第二卡槽（1C），所述第一卡槽（1B）和所述第二卡槽（1C）的形状不同，所述第一横梁本体（21）和所述第一卡槽（1B）卡接，所述第二横梁本体（22）和所述第二卡槽（1C）卡接。
  6. 根据权利要求5所述的托盘结构，其中，
    所述第一横梁本体（21）的一个所述凸条和所述第一卡槽（1B）的一个侧壁朝向彼此的一侧，一个设有凸台（111），另一个设有凹槽（2121），所述凸台（111）设于所述凹槽（2121）内；
    所述第二横梁本体（22）的两个所述凸条和第二卡槽（1C）的两个侧壁朝向彼此的一侧均为平面。
  7. 根据权利要求1-6任一项所述的托盘结构，其中，所述底板单元（1）包括相互连接的上底板（11）和下底板（12），所述电芯（100）承载于所述上底板（11），所述上底板（11）设有上泄压孔（112），所述上泄压孔（112）上封堵有所述电芯（100），所述下底板（12）设有下泄压孔（121），所述上底板（11）和所述下底板（12）之间设有泄压空间，所述泄压空间分别通过所述上泄压孔（112）和所述下泄压孔（121）与外部连通。
  8. 根据权利要求7所述的托盘结构，其中，设有多个所述电芯（100），所述上底板（11）和所述下底板（12）通过连接筋骨（13）连接，所述连接筋骨（13）将所述泄压空间分隔为多个泄压通道（1A），每个所述泄压通道（1A）各自连通有所述上泄压孔（112）和所述下泄压孔（121），多排所述电芯（100）与多个所述泄压通道（1A）一一对应设置。
  9. 根据权利要求8所述的托盘结构，其中，设有多排所述电芯（100），多个所述泄压通道（1A）平行设置，一个所述泄压通道（1A）上设有一排所述上泄压孔（112），一排所述电芯（100）共用一个所述泄压通道（1A）。
  10. 根据权利要求8所述的托盘结构，其中，每个所述泄压通道（1A）连通有一个所述下泄压孔（121），且所述下泄压孔（121）位于所述泄压通道（1A）的一端。
  11. 如权利要求1所述的托盘结构，还包括隔板(120)，所述底板单元(1)设有泄压空间，所述隔板(120)固定于所述泄压空间内，且所述隔板(120)将所述泄压空间分隔为第一泄压空间和第二泄压空间，所述第一泄压空间的表面设有第一固定孔(113)，所述第二泄压空间的表面设有第二固定孔，所述第一固定孔(113)与所述第二固定孔关于所述隔板(120)相对设置；所述电芯包括第一电芯（101）和第二电芯（102），所述第一固定孔（113）用于固定所述第一电芯(101)，且所述第一电芯(101)的泄压阀朝向所述第一泄压空间；所述第二固定孔用于固定所述第二电芯(102)，且所述第二电芯(102)的泄压阀朝向所述第二泄压空间。
  12. 根据权利要求11所述的托盘结构，其中，所述第一电芯(101)和所述第一固定孔(113)的数量均为多个且一一对应，多个所述第一固定孔(113)成多列排布，所述底板单元（1）还包括第一挡板(131)，所述第一挡板(131)固定于所述第一泄压空间内，且所述第一挡板(131)将所述第一泄压空间分隔为多个第一泄压通道(141)，每个所述第一泄压通道(141)内分别设有一列所述第一固定孔(113)。
  13. 根据权利要求12所述的托盘结构，其中，所述第二电芯(102)和所述第二固定孔的数量均为多个且一一对应，多个所述第二固定孔成多列排布，所述底板单元（1）还包括第二挡板(132)，所述第二挡板(132)固定于所述第二泄压空间内，且所述第二挡板(132)将所述第二泄压空间分隔为多个第二泄压通道(142)，每个所述第二泄压通道(142)内分别设有一列所述第二固定孔。
  14. 根据权利要求13所述的托盘结构，其中，每个所述第一泄压通道(141)的侧壁均设有第一泄压孔(151)，由所述第一电芯(101)喷出的高温高压物质能够通过所述第一泄压孔(151)排出所述第一泄压通道(141)，每个所述第二泄压通道(142)的侧壁均设有第二泄压孔(152)，由所述第二电芯(102)喷出的高温高压物质能够通过所述第二泄压孔(152)排出所述第二泄压通道(142)。
  15. 根据权利要求11-14任一项所述的托盘结构，其中，所述横梁组件（2）包括第一围挡结构(160)，所述第一围挡结构(160)围设于所述第一固定孔(113)的外周形成第一注胶槽，所述第一注胶槽用于注入胶体将所述第一电芯(101)固定于所述第一固定孔(113)。
  16. 根据权利要求11-14任一项所述的托盘结构，其中，所述横梁组件（2）还包括第二围挡结构，所述第二围挡结构围设于所述第二固定孔的外周形成第二注胶槽，所述第二注胶槽用于注入胶体将所述第二电芯(102)固定于所述第二固定孔。
  17. 根据权利要求11-14任一项所述的托盘结构，其中，所述底板单元(1)采用铝挤压工艺制成。
  18. 根据权利要求11-14任一项所述的托盘结构，所述托盘结构的外侧设有绝缘防火漆层。
  19. 一种电池模组，包括电芯（100）和权利要求1-18任一项所述的托盘结构，所述电芯（100）安装于所述托盘结构。
  20. 一种动力电池，包括电池箱以及如权利要求19所述的电池模组，所述电池模组安装于所述电池箱内。
PCT/CN2023/112007 2022-08-11 2023-08-09 托盘结构、电池模组及动力电池 WO2024032659A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190096A1 (en) * 2016-08-31 2019-06-20 Byd Company Limited Tray assembly for automobile use, battery pack body for automobile use and automobile
CN209487558U (zh) * 2018-12-28 2019-10-11 贵安新区新特电动汽车工业有限公司 动力电池包托盘及电池模组总成
US20220077539A1 (en) * 2018-12-29 2022-03-10 Byd Company Limited Battery tray and power battery pack
CN217134566U (zh) * 2022-03-14 2022-08-05 比亚迪股份有限公司 电池托盘、电池包以及车辆
CN218039525U (zh) * 2022-08-11 2022-12-13 湖北亿纬动力有限公司 电池模组及动力电池
CN218039631U (zh) * 2022-08-11 2022-12-13 湖北亿纬动力有限公司 托盘结构及电池模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190096A1 (en) * 2016-08-31 2019-06-20 Byd Company Limited Tray assembly for automobile use, battery pack body for automobile use and automobile
CN209487558U (zh) * 2018-12-28 2019-10-11 贵安新区新特电动汽车工业有限公司 动力电池包托盘及电池模组总成
US20220077539A1 (en) * 2018-12-29 2022-03-10 Byd Company Limited Battery tray and power battery pack
CN217134566U (zh) * 2022-03-14 2022-08-05 比亚迪股份有限公司 电池托盘、电池包以及车辆
CN218039525U (zh) * 2022-08-11 2022-12-13 湖北亿纬动力有限公司 电池模组及动力电池
CN218039631U (zh) * 2022-08-11 2022-12-13 湖北亿纬动力有限公司 托盘结构及电池模组

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