WO2023174298A1 - 电池托盘、电池包以及车辆 - Google Patents

电池托盘、电池包以及车辆 Download PDF

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Publication number
WO2023174298A1
WO2023174298A1 PCT/CN2023/081423 CN2023081423W WO2023174298A1 WO 2023174298 A1 WO2023174298 A1 WO 2023174298A1 CN 2023081423 W CN2023081423 W CN 2023081423W WO 2023174298 A1 WO2023174298 A1 WO 2023174298A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottom plate
tray
battery
plate
side beam
Prior art date
Application number
PCT/CN2023/081423
Other languages
English (en)
French (fr)
Inventor
廖正远
鲁志佩
郑卫鑫
唐江龙
李建强
Original Assignee
比亚迪股份有限公司
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
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2023174298A1 publication Critical patent/WO2023174298A1/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

Definitions

  • the present application relates to the field of batteries, and in particular to a battery tray, a battery pack and a vehicle.
  • the battery pack includes a battery tray.
  • the existing battery tray includes a frame and a tray bottom plate.
  • the frame and the tray bottom plate are fixedly connected, and the weight of the battery cells is carried through the tray bottom plate.
  • the thickness of the tray bottom plate needs to be If it is large enough, the weight of the pallet bottom plate will be heavy, or sufficient reinforcing rib structure will be required on the pallet bottom plate, which will increase the manufacturing materials of the pallet bottom plate and increase the production cost of the pallet bottom plate, which is not conducive to the lightweight design and cost reduction of the battery pack.
  • This application aims to solve at least one of the technical problems existing in the prior art.
  • one purpose of this application is to propose a battery tray in which the first body, the second body and the tray bottom plate simultaneously support the battery cells, which improves the vibration mode of the battery pack and reduces the strength requirements of the tray bottom plate. It is beneficial to the lightweight design and cost reduction of the battery pack.
  • This application further proposes a battery pack.
  • This application further proposes a vehicle.
  • the battery tray has a placement slot for placing electric cores
  • the battery tray includes: a tray bottom plate with a pressure-bearing area for supporting electric cores; side beams,
  • the side beam includes a first body and a second body.
  • the second body is connected to the first body and is at least partially located on a side of the first body away from the pallet bottom.
  • the first body is used to support the In the tray bottom plate, in the height direction of the battery tray, the orthographic projection of the first body, the orthographic projection of the second body and the orthographic projection of the pressure area have overlapping areas.
  • the orthographic projection of the first body, the orthographic projection of the second body and the orthographic projection of the pressure area have overlapping areas.
  • the first body, the second body and the tray bottom plate support the battery cells at the same time, thereby improving the battery quality.
  • the side beams carry most of the weight of the battery cells
  • the pallet bottom plate carries a small part of the weight of the battery cells. Reducing the strength requirements of the pallet bottom plate can reduce the thickness of the pallet bottom plate, and can also simplify the pallet bottom plate structure, thereby reducing the number of pallet bottom plates. Manufacturing materials are conducive to lightweight design and cost reduction of battery packs.
  • the first body includes: a main body portion, the main body portion is provided with a support portion, the support portion is used to support the pallet bottom plate, and in the width direction of the side beam, the The support part is located on a side of the main body part close to the placement groove, and in the height direction of the battery tray, the orthographic projection of the support part, the orthographic projection of the second body and the orthogonal projection of the pressure area Projections have overlapping areas.
  • the second body is fixedly connected to the support part and the main body part, and the tray bottom plate is fixedly connected to the support part.
  • one end of the second body extends out of the support part and is fixedly connected to the pallet bottom plate.
  • the second body is provided with a first boss protruding toward the first body, and the first boss is fixedly connected to the support portion.
  • the second body is provided with a second boss protruding toward the tray bottom plate, and the second boss is fixedly connected to the tray bottom plate.
  • the length dimension of the support part is C
  • the length dimension of the support part for supporting the battery core is E, which satisfies the relationship: 0.2C ⁇ E ⁇ 0.4C.
  • the main body part includes: a top plate, a bottom plate, a first side plate and a second side plate, and the third side plate
  • One side plate is connected between the top plate and the bottom plate.
  • the top plate and the bottom plate are spaced apart.
  • the first side The plate is spaced apart from the second side plate, the second side plate is connected between the support part and the top plate, and a structural reinforcement plate is connected between the top plate and the bottom plate.
  • the structural reinforcement plate is connected obliquely between the top plate and the bottom plate.
  • the structural reinforcement plate is inclined away from the placement slot, and/or, from the upper end to the lower end of the side beam, the first The two side plates are inclined toward the placement slot.
  • the first body and the second body are welded and connected through at least one column of welding point groups, each column of the welding point group includes a plurality of welding points, and any of the welding point groups in each column
  • the distance between two adjacent solder joints is D, which satisfies the relationship: 80mm ⁇ D ⁇ 120mm.
  • the tray bottom plate and the side beams are both metal parts, and the tray bottom plate and the side beams jointly define a placement slot for placing electric cores.
  • both the first body and the second body are constructed as one-piece molded parts.
  • the battery pack according to the present application includes: a battery core; a battery tray, the battery tray is the above-mentioned battery tray; and a cover body, and the cover body and the battery tray jointly define a placement cavity for placing the battery core. , the cover is connected to the battery tray.
  • a vehicle according to the present application includes the above-mentioned battery pack.
  • Figure 1 is a schematic diagram of a battery pack according to an embodiment of the present application.
  • Figure 2 is an exploded view of a battery pack according to an embodiment of the present application.
  • Figure 3 is a cross-sectional view of a battery pack according to an embodiment of the present application.
  • Figure 4 is an enlarged view of point A in Figure 3;
  • Figure 5 is a cross-sectional view after assembly of the side beams, tray bottom plates and battery cells according to the embodiment of the present application;
  • Figure 6 is an enlarged view of B in Figure 5;
  • Figure 7 is a schematic diagram of a battery tray according to an embodiment of the present application.
  • Figure 8 is a cross-sectional view after assembly of the side beam and the pallet bottom according to the embodiment of the present application.
  • Figure 9 is an enlarged view of C in Figure 8.
  • Figure 10 is a schematic diagram of a vehicle according to an embodiment of the present application.
  • the battery tray 100 has a placement slot 62 for placing the battery core 201 .
  • the battery tray 100 includes a frame 60 and a tray bottom plate 20 .
  • the frame 60 can define an installation area.
  • the tray bottom plate 20 is installed in the installation space 61 , and the tray bottom plate 20 and the frame 60 jointly define the installation space 61 .
  • the frame 60 may include a front beam 40 , a rear beam 50 and two side beams 10 .
  • the two side beams 10 , the front beam 40 and the rear beam 50 jointly define an installation space 61 .
  • the two side beams 10 are spaced apart in the left and right directions in Figure 2.
  • the front end beam 40 and the rear end beam 50 are both connected between the two side beams 10.
  • the front end beam 40 and the rear end beam 10 are The end beams 50 are spaced apart in the front and rear direction of the battery pack 200 , so that the front end beam 40 , the rear end beam 50 and the two side beams 10 jointly define an installation space 61 .
  • the frame may also include multiple side beams.
  • the side beam 10 includes: a first body 11 and a second body 12 .
  • the second ontology 12 and The first body 11 is connected, and at least part of the structure of the second body 12 is located on the side of the first body 11 away from the tray bottom plate 20 , the tray bottom plate 20 is located on the other side of the first body 11 , and the first body 11 is located on the second body 12 and the pallet bottom plate 20.
  • at least part of the structure of the second body 12 is located on the lower side of the first body 11, and the pallet bottom plate 20 is located on the lower side of the first body 11.
  • the upper side of the body 11 can also be understood as that at least part of the structure of the second body 12 is located below the first body 11 , and the tray bottom 20 is located above the first body 11 .
  • the first body 11 is used to support the tray bottom plate 20.
  • the tray bottom plate 20 has a pressure area 2011 for supporting the battery core 201.
  • the pressure area refers to the height direction of the battery tray 100 when the battery core 201 is placed on the tray bottom plate 20.
  • the area where the orthographic projection of the tray bottom plate 20 coincides with the orthographic projection of the battery core 201 or it can also be understood as the contact area between the battery core 201 and the tray bottom plate 20 when the battery core 201 is placed on the tray bottom plate 20.
  • the contact area includes the electric core 201 and the tray bottom plate 20.
  • the area where the core 201 is in direct contact with the tray bottom plate 20 or the area where the tray bottom plate 20 is in indirect contact For example: when there is adhesive or a cooling structure between the battery core 201 and the tray bottom plate 20, it is an indirect contact between the battery core 201 and the tray bottom plate 20. When the battery core 201 and the tray bottom plate 20 are in indirect contact, When there are no other objects between 201 and the tray bottom 20 , the battery core 201 is in direct contact with the tray bottom 20 , or it can also be understood that the area where the weight of the battery core 201 directly acts on the tray bottom 20 is the pressure area 2011 .
  • the orthographic projection of the tray bottom plate 20 is also the projection of the tray bottom plate 20 in a plane perpendicular to the height direction of the battery tray 100 .
  • the orthographic projection of the battery core 201 is also the projection of the battery core 201 in a plane perpendicular to the height direction of the battery tray 100 .
  • the height direction of the battery tray 100 refers to the up and down direction in Figure 4,
  • the orthographic projection of the first body 11, the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011 have overlapping areas, That is to say, the orthographic projection of the first body 11 and the orthographic projection of the pressure area 2011 have an overlapping area.
  • the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011 also have an overlapping area.
  • the orthographic projection of the first body 11 The overlapping area with the orthographic projection of the pressure area 2011 and the overlapping area with the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011 have overlapping parts.
  • the first body 11, the second body 12 and the tray bottom 20 are at the same time. The same area supports the cell 201.
  • the tray bottom plate 20 can be a flat structure.
  • the battery core 201 is installed in the battery tray 100, the battery core 201 is placed on the tray bottom plate 20 and is located in the pressure area 2011 of the tray bottom plate 20.
  • the battery pack 200 is shown in Figure 4 When placed in the same way as shown in Figure 6, the tray bottom plate 20 is located above the first body 11.
  • the orthographic projection of the first body 11 and the orthogonal projection of the pressure area 2011 The projection has an overlapping area, and the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011 also have an overlapping area, and the overlapping area of the orthographic projection of the first body 11 and the orthographic projection of the pressure area 2011 is the same as that of the second body 12
  • the overlapping area of the front projection and the front projection of the pressure area 2011 has an overlapping portion, so that the first body 11, the second body 12 and the tray bottom plate 20 support the battery core 201 at the same time.
  • the battery core 201 is assembled in the battery tray 100, the battery core 201 is simultaneously supported by the first body 11, the second body 12 and the tray bottom plate 20.
  • the weight of the battery core 201 is carried on the side beam 10, and the side beam 10 carries most of the weight of the battery core 201, and the pallet bottom plate 20 carries a small part of the weight of the battery core 201, which greatly reduces the load-bearing requirements of the pallet bottom plate 20.
  • the pallet bottom plate 20 can be made of materials with lower strength and thinner thickness.
  • the pallet bottom plate 20 20 does not need to be provided with a reinforcing rib structure.
  • the pallet bottom plate 20 can be configured as a plate-like structure to meet the usage requirements.
  • the pallet bottom plate 20 can also be made of a metal material with lower strength and thinner thickness.
  • the pallet bottom plate 20 is made of aluminum or Made of steel, it can reduce the weight of the pallet bottom plate 20 , which is beneficial to the lightweight design of the battery tray 100 and the battery pack 200 , and can also reduce the production costs of the side beams 10 , the battery tray 100 , and the battery pack 200 .
  • the overall structural strength of the battery pack 200 can be improved, and the vibration mode of the battery pack 200 can be increased by more than 10HZ, thus improving the vibration of the battery pack 200 mode, increasing the mechanical reliability of the battery pack 200.
  • the vibration mode of the battery pack 200 is improved.
  • the side beam 10 carries most of the weight of the battery cells 201, and the pallet bottom plate 20 carries a small part of the weight of the battery cells 201.
  • the strength requirements of the pallet bottom plate 20 are reduced, and the thickness of the pallet bottom plate 20 can be reduced.
  • the structure of the pallet bottom plate 20 can be simplified, thereby reducing the manufacturing materials of the pallet bottom plate 20 , which is beneficial to the lightweight design and cost reduction of the battery pack 200 .
  • the first body 11 includes a main body portion 111 , the main body portion 111 is provided with a support portion 112 , the support portion 112 extends toward the placement slot 62 of the battery tray 100 , and in the width direction of the side beam 10 , the support portion 112 is located
  • the main body part 111 is on the side close to the placement slot 62, and the support part 112 is used to support the tray bottom plate 20.
  • the support part 112 is connected to the main body part 111.
  • the main body part 111 is on the side close to the installation space 61.
  • a support portion 112 is connected, and the support portion 112 extends toward the installation space 61.
  • the width direction of the side beam 10 refers to the left-right direction in Figure 4, and the installation space 61 is located on the left side.
  • the up and down direction in FIG. The projection has an overlapping area. It can also be understood that the orthographic projection of the support part 112 and the orthographic projection of the pressure area 2011 have an overlapping area.
  • the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011 also have an overlapping area, and the support
  • the overlapping area of the orthographic projection of the part 112 and the orthographic projection of the pressure area 2011 has an overlapping portion with the overlapping area of the orthographic projection of the second body 12 and the orthographic projection of the pressure area 2011.
  • the battery core 201 is placed on the tray bottom plate 20 After being inside the bottom plate 2 , this arrangement can ensure that the support portion 112 is supported below the battery core 201 .
  • the second body 12 and the first body 11 are separately processed parts. It can also be understood that the second body 12 and the first body 11 are separate components, and the second body 12 and the first body 11 are separate components.
  • the first body 11 is not an integrally formed part.
  • the second body 12 and the first body 11 are processed and produced separately.
  • the second body 12 is fixed to the first body 11 . That is to say, the second body 12 and the first body 11 are fixedly connected, for example.
  • the second body 12 and the first body 11 can be welded and fixed by welding.
  • the second body 12 and the first body 11 can also be connected and fixed by screwing.
  • the second body 12 and the first body 11 can also be connected and fixed by riveting and bonding.
  • the first body 11 is connected and fixed. In this application, the second body 12 and the first body 11 are connected by welding as an example.
  • At least part of the structure of the second body 12 is located below the support part 112.
  • the side beam 10 is placed in the direction in Figure 6, when part of the structure of the second body 12 is located below the support part 112, another part of the structure of the second body 12 It can be located below the main body 111 and/or above the main body 111 and/or on one side of the main body 111.
  • part of the structure of the second body 12 is located below the support part 112, and another part of the structure of the second body 12 is located below the main body 111 .
  • the second body 12 and the first body 11 By arranging the second body 12 and the first body 11 as separate processing parts, the second body 12 and the first body 11 can be produced separately, and the thickness and materials of the second body 12 and the first body 11 can be adjusted independently to make the edges
  • the beam 10 meets the design requirements of strength and weight at different positions. Compared with the one-piece roller-formed edge beam 10 whose thickness and material can only be adjusted as a whole, the production cost of the edge beam 10 of this application is reduced. At the same time, the one-piece roller-formed edge beam 10 is difficult to integrate into one piece. To roll out a complex cross-section, in this application, by setting the side beam 10 to a split structure, the side beam 10 can be formed into a more complex cross-section.
  • the side beam 10 carries most of the weight of the battery cells 201 , and the tray floor 20 of the battery tray 100 carries a small part of the weight of the battery cells 201 , thereby reducing the strength requirements of the tray floor 20 and reducing the size of the tray floor.
  • 20 thickness which is beneficial to the lightweight design and cost reduction of the battery pack 200, and by setting the second body 12 and the first body 11 as separate processing parts, the second body 12 and the first body 11 can be produced separately, which can The thickness and material of the second body 12 and the first body 11 are individually adjusted so that the side beam 10 can meet the design requirements of strength and weight at different positions.
  • the second body 12 is connected to both the support part 112 and the main body part 111. Further, the second body 12 is fixedly connected to the support part 112 and the main body part 111, and the tray bottom plate 20 is connected to the support part 112. For fixed connection, the pallet bottom plate 20 and the support part 112 are welded, bonded or riveted.
  • the entire structure of the second body 12 is located below the first body 11, and the Part of the structure is located below the support part 112. Part of the structure of the second body 12 is located below the main part 111.
  • the second body 12 located below the main part 111 is welded to the bottom plate 114 of the main part 111.
  • the second body located below the support part 112 12 is welded to the support portion 112, wherein the second body 12 has a structural strengthening effect. This arrangement can further improve the structural strength and rigidity of the side beam 10 and reduce the risk of deformation of the side beam 10.
  • one end of the second body 12 in the width direction of the side beam 10, one end of the second body 12 extends a support portion 112 and is connected to the pallet bottom 20. Further, the second body One end of 12 close to the placement slot 62 extends out of the first body 11 and is fixedly connected to the tray bottom plate 20 .
  • the end of the second body 12 close to the placement slot 62 is the right end of the second body 12 , the right end of the second body 12 extends toward the placement slot 62, and the right end of the second body 12 extends out of the right end of the first body 11.
  • Surface connections e.g.
  • the second body 12 is directly connected to the tray bottom plate 20, and the battery core 201 is placed on the tray. After the chassis bottom plate 20 is installed, the supporting area of the side beam 10 for the battery cell 201 can be increased, which can further improve the vibration mode of the battery pack 200 and also improve the structural strength of the side beam 10 .
  • the second body 12 is provided with a first boss 121 protruding toward the first body 11 , and the first boss 121 and the support portion 112 Fixed connection. Further, the structure of the second body 12 located below the support portion 112 is provided with a first boss 121 protruding toward the first body 11 . The first boss 121 is fixedly connected to the support portion 112 . In some optional embodiments, when the side beam 10 is placed in the direction shown in FIG. 4 , in the up and down direction of the side beam 10 , the first boss 121 and the support part 112 are provided correspondingly, and the first boss 121 and the support part 112 are arranged correspondingly.
  • Such an arrangement can further improve the structural strength of the side beam 10 and reliably support the battery core 201 , further improve the stability of the side beam 10 , thereby avoiding deformation of the support portion 112 and allowing the support portion 112 to reliably support the battery core 201 .
  • the second body 12 is provided with a second boss 125 protruding toward the pallet bottom 20 , and the second boss 125 is fixed to the pallet bottom 20 connect.
  • the structure of the second body 12 extending out of the first body 11 and located below the pallet bottom 20 is provided with a second boss 125 protruding toward the pallet bottom 20 , the second boss 125 is fixedly connected (for example, welded) to the tray bottom plate 20. This arrangement can further enhance the structural strength of the side beam 10, support the battery core 201 more reliably, and further improve the stability of the side beam 10.
  • the width direction of the side beam 10 when the battery tray 100 is placed in the direction in Figure 4, the width direction of the side beam 10 refers to the left and right direction in Figure 4, and the length of the support portion 112
  • the dimension is C
  • the length dimension of the support portion 112 for supporting the battery core 201 is E, which satisfies the relationship: 0.2C ⁇ E ⁇ 0.4C.
  • the width direction of the side beam 10 in the width direction of the side beam 10, when the side beam 10 is placed in the direction in Figure 4, the width direction of the side beam 10 refers to the left-right direction in Figure 4, and the support portion 112 is used to support
  • the length dimension of the battery core 201 is E, which satisfies the relationship: 30mm ⁇ E ⁇ 100mm.
  • the overlap length of the orthographic projection of the supporting part 112 and the orthographic projection of the pressure area 2011 in the width direction of the side beam 10 is 30mm-100mm.
  • Such an arrangement can ensure that the supporting part 112 supports the battery core 201
  • the supporting area can also ensure that the supporting part 112 supports the battery core 201, and the supporting part 112 can reliably support the battery core 201, thereby reducing the risk of vibration failure of the battery core 201, thereby reducing the risk of vibration failure of the battery pack 200. This ensures the vibration safety of the battery pack 200.
  • the main body 111 may include: a top plate 113 , a bottom plate 114 , a first side plate 115 and a second side plate 116 .
  • the first side plate 115 is connected to the top plate. 113 and the bottom plate 114, in the height direction of the side beam 10, the top plate 113 and the bottom plate 114 are spaced apart, as shown in Figure 6, in the width direction of the side beam 10, the first side plate 115 and the second side plate 116 Set apart, the second side plate 116 is connected between the support portion 112 and the top plate 113 .
  • the second side plate 116 is located on a side of the first side plate 115 close to the placement slot 61 of the battery tray 100 .
  • the second side plate 116 is connected to Support part 112 and top plate 113.
  • the lower end of the second side plate 116 is connected to the support portion 112
  • the upper end of the second side plate 116 is connected to the top plate 113
  • the support portion 112 is welded to the second body 12
  • a structural reinforcing plate 117 is connected therebetween, and the structural reinforcing plate 117 is located between the first side plate 115 and the second side plate 116 .
  • the lower end of the first side plate 115 is connected to the bottom plate 114.
  • the bottom plate 114 is connected to the second body 12 and the structural reinforcement plate 117.
  • the bottom plate 114 is welded to the second body 12, and the upper end of the structural reinforcement plate 117 is connected.
  • This arrangement can improve the structural strength and stiffness of the side beam 10, and can also improve the side beam. 10 Structural stability can reduce the risk of side beam 10 deformation.
  • the structural reinforcement plate 117 is spaced apart from the first side plate 115 and the second side plate 116, and the structural reinforcement plate 117, the bottom plate 114, the first side plate 115 and the top plate 113 jointly define Out of the first cavity 122, the structural reinforcement plate 117, the second body 12, the second side plate 116 and the top plate 113 jointly define a second cavity 123.
  • the first cavity 122 and the second cavity 123 are located on the side beam 10. Arranged in the width direction, when the first cavity 122 is impacted, the first cavity 122 can absorb the impact force, reducing the impact force transmitted to the interior of the battery pack 200, which can reduce the risk of the battery core 201 in the battery pack 200 being damaged. , thereby improving the safety of use of the battery pack 200.
  • the height direction of the side beam 10 may be consistent with the height direction of the battery tray 100
  • the width direction of the side beam 10 may be consistent with the width direction or length direction of the battery tray 100
  • the height direction of the side rail 10 may be consistent with the height direction of the vehicle 2000
  • the width direction of the side rail 10 may be consistent with the vehicle length direction or the vehicle width direction.
  • the main body 111 is provided with a blind rivet nut 120.
  • the blind rivet nut 120 is arranged on the top plate 113, and the blind rivet nut 120 extends into the first cavity 122, and is connected through bolts and blind rivets. The nut 120 is engaged and connected to assemble the side beam 10 and the cover 202 of the battery pack 200 together.
  • the structural reinforcement plate 117 is connected obliquely between the top plate 113 and the bottom plate 114, and the structural reinforcement plate 117 is supported obliquely between the top plate 113 and the bottom plate 114, which can further Improving the structural strength and rigidity of the side beam 10 can also improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby extending the service life of the side beam 10 and the battery tray 100.
  • the structural reinforcement plate 117 when the side beam 10 is placed in the placement manner in FIG. 4 , the structural reinforcement plate 117 is inclined away from the placement groove 62 from the upper end to the lower end of the side beam 10 , which can also be understood as, The structural reinforcement plate 117 is inclined toward the installation space 61 away from the battery tray 100 . It can also be understood that from the upper to lower direction of the battery tray 100 , the structural reinforcement plate 117 extends obliquely in a direction away from the installation space 61 . And/or from the upper end to the lower end of the side beam 10, the second side plate 116 is inclined toward the placement groove 62. Such an arrangement can further improve the structural strength and rigidity of the side beam 10, and can further improve the stability of the side beam 10, so that Further improving the ability of the side beam 10 to support the battery core 201 can also further reduce the risk of deformation of the side beam 10 .
  • the second side plate 116 is inclined toward the placing groove 62 .
  • Such an arrangement can further improve the structural strength of the side beam 10, further improve the stability of the side beam 10, thereby further improving the ability of the side beam 10 to support the battery core 201, and further reducing the risk of deformation of the frame 20.
  • the angle between the second side plate 116 and the structural reinforcement plate 117 is ⁇ , which satisfies the relationship: 50° ⁇ 70°, for example, ⁇ is 60°.
  • This setting can further improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby further extending the service life of the side beam 10 and the battery tray 100.
  • the angle between the structural reinforcement plate 117 and the bottom plate 114 is ⁇ , which satisfies the relationship: 110° ⁇ 140°, for example: ⁇ is 120° .
  • ⁇ is ⁇ , which satisfies the relationship: 110° ⁇ 140°, for example: ⁇ is 120° .
  • the cross-sectional shape of the first cavity 122 and the cross-sectional shape of the second cavity 123 are both triangular or trapezoidal. Such an arrangement can improve the structural stability of the side beam 10 and further reduce the risk of the side beam. 10 Risk of deformation.
  • the cross-sectional shape of the first cavity 122 refers to the cross-sectional shape in the width direction of the side beam 23, that is, the cross-sectional shape of the first cavity 122 perpendicular to the length direction of the side beam 10.
  • the cross-sectional shape of the cavity 123 refers to the cross-sectional shape in the width direction of the side beam 23 , that is, the cross-sectional shape of the second cavity 123 perpendicular to the length direction of the side beam 10 .
  • the cross-sectional shape of the second cavity 123 is a triangle.
  • the triangle is an isosceles triangle or an equilateral triangle, and the bottom plate 114 constitutes the bottom wall of the triangle.
  • Such an arrangement can further enhance the side beam 10 Structural stability can further reduce the risk of deformation of the side beam 10.
  • the angle between the second body 12 and the structural reinforcement plate 117 is configured as the base angle of a triangle, and the angle of the base angle is ⁇ 1, satisfying the relationship: 50° ⁇ 1 ⁇ 70°, for example , ⁇ 1 is 60°.
  • This setting can further improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby further extending the service life of the side beam 10 and the battery tray 100.
  • the vertex angle of the triangle is ⁇ , that is, the angle between the second side plate 116 and the structural reinforcement plate 117, which satisfies the relationship: 50° ⁇ 70°.
  • ⁇ is 60°.
  • Such an arrangement can set the cross-sectional shape of the second cavity 123 to an equilateral triangle. Such an arrangement can further improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby further extending the length of the side beam 10 and the battery.
  • the pallet has a service life of 100 years.
  • the cross-sectional shape of the second cavity 123 is set to a trapezoid.
  • the second body 12 forms a trapezoidal bottom wall
  • the second cavity 123 forms a trapezoidal bottom wall.
  • the angle between the main body 12 and the structural reinforcement plate 117 is configured as the bottom angle of the trapezoid of the second cavity 123.
  • the angle of the bottom angle is ⁇ 2, which satisfies the relationship: 50° ⁇ 2 ⁇ 70°.
  • ⁇ 2 is 60°.
  • the angle between the two waists of the trapezoid of the second cavity 123 is ⁇ , that is, the angle between the second side plate 116 and the structural reinforcement plate 117, Satisfy the relationship: 50° ⁇ 70°.
  • ⁇ is 60°.
  • Such a setting can further improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby further extending the side beam 10 and the battery tray. 100 lifespan.
  • the cross-sectional shape of the first cavity 122 is a trapezoid
  • the bottom plate 114 constitutes the trapezoidal top wall of the first cavity 122
  • the top plate 113 constitutes The trapezoidal bottom wall of the first cavity 122 can further improve the structural stability of the side beam 10 and further reduce the risk of deformation of the side beam 10, thereby further extending the service life of the side beam 10 and the battery tray 100.
  • the height direction of the side beam 10 refers to the up and down direction in Figure 4, and the lower surface of the bottom plate 114
  • the height difference from the lower surface of the support part 112 is H, which satisfies the relationship: 5mm ⁇ H ⁇ 10mm.
  • H is 8mm.
  • the tray bottom plate 20 is provided on the upper surface of the support portion 112.
  • the support portion 112 supports the tray bottom plate 20.
  • the lower surface of the tray bottom plate 20 is provided with an insulation layer.
  • the insulation layer plays a role in insulating the battery pack 200.
  • the thermal insulation layer is located between the two opposite side beams 10 .
  • a space for the thermal insulation layer can be formed below the pallet bottom plate 20 , can ensure that the thickness of the thermal insulation layer is appropriate, thereby better insulating the battery pack 200 , and can also prevent the lower surface of the thermal insulation layer from protruding from the battery tray 100 , thereby making the bottom of the battery tray 100 flatter.
  • the side beam 10 is connected to a lifting lug structure 30.
  • the side beam 10 and the lifting lug structure 30 can be welded together.
  • the lifting lug structure 30 is provided with a mounting hole 31.
  • the lifting eye structure 30 is installed on the vehicle 2000 through fasteners (such as bolts) to achieve the purpose of installing the battery pack 200 on the vehicle 2000 .
  • the height of the support portion 112 is lower than that of the main body portion 111
  • the height of the upper surface after the tray bottom plate 20 is installed in the installation space 61, by making the height of the support part 112 lower than the height of the upper surface of the main body part 111, it can ensure that the support part 112 is supported below the tray bottom plate 20, and it can also ensure that the tray bottom plate 20 It can be installed in the installation space 61 to ensure that the support part 112 can support the tray bottom plate 20 and the battery core 201 .
  • the first body 11 and the second body 12 are both constructed as one-piece molded parts. Such an arrangement can improve the structural strength and strength of the first body 11 and the second body 12. Stiffness, thereby further improving the load-bearing capacity of the side beam 10.
  • the first body 11 and the second body 12 are welded and connected through at least one row of solder point groups, each row of solder joint groups includes multiple solder joints, and any two adjacent solder joint groups in each column
  • the spacing distance between solder joints is D, which satisfies the relationship: 80mm ⁇ D ⁇ 120mm.
  • the first body 11 and the second body 12 are welded and connected by laser welding. If the welding points are too dense, the first body 11 and the second body 12 will be deformed. If the welding points are too few, the first body 11 and the second body 12 will be deformed. The assembly strength is not enough.
  • the pallet bottom 20 and the side beam 10 jointly define a placement slot 62 for placing the battery core 201.
  • the side beam 10 is provided at the edge of the pallet bottom 20, The support part 112 is supported below the pallet bottom plate 20.
  • the side beam 10 and the pallet bottom plate 20 jointly define a placement slot 62.
  • the battery core 201 is placed in the placement slot 62, and the battery core 201 is fixed on the tray bottom plate 20. Further, the battery The core 201 can be bonded to the tray bottom plate 20 to fix the battery core 201 in the battery tray 100 and prevent the battery core 201 from moving.
  • the tray bottom 20 is fixedly connected to the support portion 112 . Furthermore, the pallet bottom plate 20 and the support part 112 are bonded together, or the pallet bottom plate 20 and the support part 112 are welded together, so that the side beams can be 10 and the tray bottom plate 20 are reliably fixed together, which can prevent the tray bottom plate 20 from being separated from the support portion 112, thereby causing the battery core 201 to fall from the battery tray 100.
  • both the pallet bottom 20 and the side beams 10 are metal parts.
  • the pallet bottom plate 20, the first body 11 and the second body 12 can be made of aluminum material, and the pallet bottom plate 20, the first body 11 and the second body 12 can also be made of steel material, but the application is not limited thereto.
  • the pallet bottom plate 20, the first body 11 and the second body 12 can also be made of other metal materials that have the same function as steel materials.
  • the pallet bottom plate 20, the first body 11 and the second body 12 are all made of steel materials.
  • the pallet bottom plate 20, the first body 11 and the second body 12 can be formed by rolling steel materials, and the pallet bottom plate 20, the first body 11 and the second body 12 can also be formed by extrusion of steel materials.
  • the first body 11 and the second body 12 as metal parts, the load-bearing capacity of the side beams 10 and the pallet bottom plate 20 can be improved, and the risk of deformation of the side beams 10 and the pallet bottom plate 20 can be reduced.
  • the first body 11 and the second body 12 made of steel material can withstand high temperatures above 1500°C, ensuring the integrity of the side beam 10 when the battery core 201 thermally runs away.
  • the battery tray 100 includes a plurality of expansion beams 121 installed in the installation space 61 . They are spaced apart in the front and rear directions. After the battery cores 201 are placed on the pallet bottom 20, the battery cores 201 are arranged between two adjacent expansion beams 121. When the battery cores 201 expand, the expansion beams 121 can perform damage to the battery cores 201. limit, thereby improving the safety of using the battery pack 200.
  • the battery pack 200 includes: a battery core 201, a battery tray 100 and a cover 202.
  • the battery tray 100 is the battery tray 100 in the above embodiment.
  • the cover 202 and the battery tray 100 jointly define a placement cavity 203 for placing the battery core 201.
  • the cover 202 is connected to the battery tray 100.
  • the battery tray 100 includes a frame 60 that defines an installation space 61.
  • the frame 60 has a side beam 10.
  • the tray bottom plate 20 is installed in the installation space 61.
  • the side beam 10 and the tray bottom plate 20 define a space for placing the battery core 201. placement slot 62.
  • the cover 202 is placed over the placement groove 62 to form a placement cavity 203 , and the battery core 201 is placed in the placement cavity 203 , and is connected through bolts and rivet nuts 120 .
  • the cover 202 is installed on the frame 60 .
  • a sealing member 204 (such as a sealing ring or sealing foam) is sandwiched between the cover 202 and the frame 60 .
  • the sealing member 204 seals the gap between the cover 202 and the frame 60 so that the placement cavity 203 is sealed. , ensuring the sealing of the battery pack 200.
  • the battery pack 200 may also include: a pressure plate 205 , the pressure plate 205 is configured as a closed ring structure, and the cover 202 and the seal 204 are sandwiched between the pressure plate 205 and the frame 60 , use bolts to pass through the pressure plate 205, the cover 202 and the seal 204 to connect with the rivet nut 120, and assemble the pressure plate 205, the cover 202, the seal 204 and the frame 60 together.
  • the pressure plate 205 can pressurize the entire seal 204. Uniform, ensuring reliable sealing of the placement cavity 203.
  • a heat exchange device 206 may be provided in the placement cavity 203.
  • the heat exchange device 206 may be used to heat or cool the battery core 201.
  • the heat exchange device 206 may be made of a heat exchanger. It is composed of a hot plate. There can be a liquid flow channel in the heat exchange plate. The liquid flows in the liquid flow channel to exchange heat with the battery core 201.
  • the specific structure of the heat exchange device 206 is not limited, as long as it can heat or cool the battery core 201. , through heat exchange between the heat exchange device 206 and the battery core 201, the battery core 201 can be maintained at a suitable operating temperature, thereby ensuring the working performance of the battery pack 200.
  • the placement cavity 203 may be provided with thermal insulation cotton 207.
  • the thermal insulation cotton 207 is disposed between the heat exchange device 206 and the cover 202.
  • the thermal insulation cotton 207 has an insulation function. Thermal effect. In low temperature environment, the heat insulation cotton 207 can prevent the heat of the battery core 201 from being transferred to the outside of the battery pack 200 through the cover 202. In a high temperature environment, the heat insulation cotton 207 can prevent the heat in the environment from being transferred to the battery pack through the cover 202. 200 inside, thereby better keeping the battery core 201 at a suitable operating temperature.
  • the battery pack 200 may also include a protective plate 208.
  • the protective plate 208 is disposed at the lower end of the battery tray 100. The protective plate 208 can protect the battery pack 200 from Pallet 100 was broken.
  • a vehicle 2000 includes the battery pack 200 of the above embodiment.
  • the battery pack 200 is installed on the vehicle 2000 to provide electric energy to the vehicle 2000.
  • the side beam 10 carries most of the weight of the battery cell 201.
  • Trust The tray bottom plate 20 of the tray 100 carries a small part of the weight of the battery cells 201. Reducing the strength requirements of the pallet bottom plate 20 can reduce the thickness of the pallet bottom plate 20, which is beneficial to the lightweight design and cost reduction of the battery pack 200, thus contributing to the vehicle 2000
  • the thickness and material of the main body 11 enable the side beam 10 to meet the design requirements of strength and weight at different positions.

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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

一种电池托盘(100)、电池包(200)以及车辆(2000)，电池托盘(100)包括：托盘底板(20)，托盘底板(20)具有支撑电芯(201)的受压区域(2011)；边梁(10)，边梁(10)包括第一本体(11)和第二本体(12)，第二本体(12)与第一本体(11)连接，第一本体(11)用于支撑托盘底板(20)，在电池托盘(100)高度方向，第一本体(11)的正投影、第二本体(12)的正投影和受压区域(2011)的正投影具有重合区域。

Description

电池托盘、电池包以及车辆
相关申请的交叉引用
本申请要求“比亚迪股份有限公司”于2022年03月14日提交的、名称为“电池托盘、电池包以及车辆”的、中国专利申请号“2022205637660”的优先权。
技术领域
本申请涉及电池领域，尤其是涉及一种电池托盘、电池包以及车辆。
背景技术
相关技术中，电池包包括电池托盘，现有电池托盘包括边框和托盘底板，边框和托盘底板固定连接，通过托盘底板承载电芯重量，为了保证托盘底板具有足够强度，需要将托盘底板厚度做的足够大，导致托盘底板重量较大，或者需要在托盘底板上设置足够的加强筋结构，会导致托盘底板制造材料增加，托盘底板生产成本高，不利于电池包的轻量化设计以及成本降低。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请的一个目的在于提出了一种电池托盘，该电池托盘的第一本体、第二本体和托盘底板同时支撑电芯，提升了电池包振动模态，降低托盘底板的强度要求，有利于电池包的轻量化设计以及成本降低。
本申请进一步地提出了一种电池包。
本申请进一步地提出了一种车辆。
根据本申请的电池托盘，所述电池托盘具有用于放置电芯的放置槽，所述电池托盘包括：托盘底板，所述托盘底板具有用于支撑电芯的受压区域；边梁，所述边梁包括第一本体和第二本体，所述第二本体与所述第一本体连接且至少部分位于所述第一本体背离所述托盘底板的一侧，所述第一本体用于支撑所述托盘底板，在所述电池托盘的高度方向，所述第一本体的正投影、所述第二本体的正投影和所述受压区域的正投影具有重合区域。
根据本申请的电池托盘，通过第一本体的正投影、第二本体的正投影和受压区域的正投影具有重合区域，第一本体、第二本体和托盘底板同时支撑电芯，提升了电池包振动模态，边梁承载电芯的大部分重量，托盘底板承载电芯的小部分重量，降低托盘底板的强度要求，可以减小托盘底板厚度，也可以简化托盘底板结构，从而减少托盘底板制造材料，有利于电池包的轻量化设计以及成本降低。
在本申请的一些示例中，所述第一本体包括：主体部，所述主体部设有支撑部，所述支撑部用于支撑所述托盘底板，在所述边梁的宽度方向，所述支撑部位于所述主体部靠近所述放置槽的一侧，且在所述电池托盘的高度方向，所述支撑部的正投影、所述第二本体的正投影和所述受压区域的正投影具有重合区域。
在本申请的一些示例中，所述第二本体与所述支撑部、所述主体部均固定连接，所述托盘底板与所述支撑部固定连接。
在本申请的一些示例中，在所述边梁的宽度方向，所述第二本体的一端延伸出所述支撑部且与所述托盘底板固定连接。
在本申请的一些示例中，所述第二本体设有朝向所述第一本体凸出的第一凸台，所述第一凸台与所述支撑部固定连接。
在本申请的一些示例中，所述第二本体设有朝向所述托盘底板凸出的第二凸台，所述第二凸台与所述托盘底板固定连接。
在本申请的一些示例中，在所述边梁的宽度方向上，所述支撑部的长度尺寸为C，所述支撑部的用于支撑所述电芯的长度尺寸为E，满足关系式：0.2C≤E≤0.4C。
在本申请的一些示例中，所述主体部包括：顶板、底板、第一侧板和第二侧板，所述第 一侧板连接在所述顶板和所述底板之间，在所述边梁的高度方向上，所述顶板和所述底板间隔设置，在所述边梁的宽度方向上，所述第一侧板和所述第二侧板间隔设置，所述第二侧板连接在所述支撑部和所述顶板之间，且所述顶板和所述底板之间连接有结构加强板。
在本申请的一些示例中，所述结构加强板倾斜连接在所述顶板和所述底板之间。
在本申请的一些示例中，从所述边梁的上端至下端方向，所述结构加强板朝向远离所述放置槽倾斜，和/或，从所述边梁的上端至下端方向，所述第二侧板朝向靠近所述放置槽倾斜。
在本申请的一些示例中，所述第一本体和所述第二本体通过至少一列焊点组焊接连接，每列所述焊点组包括多个焊点，每列所述焊点组中任意相邻的两个所述焊点间的间隔距离为D，满足关系式：80mm≤D≤120mm。
在本申请的一些示例中，所述托盘底板和所述边梁均为金属件，所述托盘底板和所述边梁共同限定出用于放置电芯的放置槽。
在本申请的一些示例中，所述第一本体和所述第二本体均构造为一体成型件。
根据本申请的电池包，包括：电芯；电池托盘，所述电池托盘为上述的电池托盘；盖体，所述盖体和所述电池托盘共同限定出用于放置所述电芯的放置腔，所述盖体与所述电池托盘连接。
根据本申请的车辆，包括上述的电池包。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
图1是根据本申请实施例的电池包的示意图；
图2是根据本申请实施例的电池包的爆炸图；
图3是根据本申请实施例的电池包的剖视图；
图4是图3中A处放大图；
图5是根据本申请实施例的边梁、托盘底板和电芯装配后截面图；
图6是图5中B处放大图；
图7是根据本申请实施例的电池托盘的示意图；
图8是根据本申请实施例的边梁和托盘底板装配后截面图；
图9是图8中C处放大图；
图10是根据本申请实施例的车辆示意图。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下面参考图1-图9描述根据本申请实施例的电池托盘100，电池托盘100具有用于放置电芯201的放置槽62，电池托盘100包括边框60和托盘底板20，边框60可以限定出安装空间61，托盘底板20安装于安装空间61内，托盘底板20和边框60共同限定出安装空间61。在一些实施例中，边框60可以包括前端梁40、后端梁50和两个边梁10，两个边梁10、前端梁40和后端梁50共同限定出安装空间61，当电池包200以图8中的放置方式放置时，两个边梁10在图2中的左右方向间隔开设置，前端梁40、后端梁50均连接在两个边梁10之间，前端梁40和后端梁50在电池包200的前后方向间隔开设置，从而使前端梁40、后端梁50和两个边梁10共同限定出安装空间61。当然，在其他实施例中，边框也可以包括多个边梁。
如图4、图6和图9所示，边梁10包括：第一本体11和第二本体12。第二本体12与 第一本体11连接，且第二本体12的至少部分结构位于第一本体11背离托盘底板20的一侧，托盘底板20位于第一本体11的另一侧，第一本体11位于第二本体12和托盘底板20之间，需要说明的是，以图4中边梁10摆放方向为例进行说明，第二本体12的至少部分结构位于第一本体11的下侧，托盘底板20位于第一本体11的上侧，也可以理解为，第二本体12的至少部分结构位于第一本体11的下方，托盘底板20位于第一本体11的上方。第一本体11用于支撑托盘底板20，托盘底板20具有用于支撑电芯201的受压区域2011，受压区域是指电芯201放置于托盘底板20上时，在电池托盘100的高度方向，托盘底板20的正投影与电芯201的正投影重合的区域，或者也可以理解为，电芯201放置于托盘底板20上时，电芯201与托盘底板20的接触区域，接触区域包括电芯201与托盘底板20直接接触的区域或者间接接触的区域，例如：当电芯201和托盘底板20之间具有粘胶剂或者冷却结构时属于电芯201与托盘底板20间接接触，当电芯201和托盘底板20之间没有其他物体时电芯201与托盘底板20直接接触，或者也可以理解为电芯201的重量直接作用在托盘底板20的区域为受压区域2011。其中，在电池托盘100的高度方向，托盘底板20的正投影也即托盘底板20在与电池托盘100的高度方向相垂直的平面内的投影。在电池托盘100的高度方向，电芯201的正投影也即电芯201在与电池托盘100的高度方向相垂直的平面内的投影。
其中，在电池托盘100高度方向，电池托盘100高度方向是指图4中的上下方向，第一本体11的正投影、第二本体12的正投影和受压区域2011的正投影具有重合区域，也就是说，第一本体11的正投影与受压区域2011的正投影具有重合区域，第二本体12的正投影与受压区域2011的正投影也具有重合区域，第一本体11的正投影和受压区域2011的正投影的重合区域、与第二本体12的正投影和受压区域2011的正投影的重合区域具有重合部分，第一本体11、第二本体12和托盘底板20同时在同一个区域支撑电芯201。
其中，托盘底板20可以为平板状结构，电芯201安装于电池托盘100内时，电芯201放置在托盘底板20上且位于托盘底板20的受压区域2011内，当电池包200以图4和图6中的放置方式放置时，托盘底板20位于第一本体11上方，在电池托盘100高度方向，即在图4中的上下方向，第一本体11的正投影与受压区域2011的正投影具有重合区域，第二本体12的正投影与受压区域2011的正投影也具有重合区域，且第一本体11的正投影和受压区域2011的正投影的重合区域、与第二本体12的正投影和受压区域2011的正投影的重合区域具有重合部分，以使第一本体11、第二本体12和托盘底板20同时支撑电芯201。
需要说明的是，电芯201装配在电池托盘100内后，通过第一本体11、第二本体12和托盘底板20同时支撑电芯201，电芯201的重量搭载在边梁10上，边梁10承载电芯201的大部分重量，托盘底板20承载电芯201的小部分重量，大大减轻托盘底板20的承重要求，托盘底板20可以使用强度更低、厚度更薄的材料制成，托盘底板20不需要设置加强筋结构，托盘底板20设置为板状结构就能满足使用要求，托盘底板20也可以由强度更低、厚度更薄的金属材料制成，例如：托盘底板20由铝材或者钢材制成，能够减小托盘底板20重量，有利于电池托盘100、电池包200的轻量化设计，也可以减少边梁10、电池托盘100、电池包200的生产成本。并且，通过第一本体11、第二本体12和托盘底板20同时支撑电芯201，能够提升电池包200整体结构强度，可以使电池包200振动模态增加10HZ以上，从而提升了电池包200振动模态，增加了电池包200的机械可靠性。
由此，通过第一本体11的正投影、第二本体12的正投影和受压区域2011的正投影具有重合区域，第一本体11、第二本体12和托盘底板20同时支撑电芯201，提升了电池包200振动模态，边梁10承载电芯201的大部分重量，托盘底板20承载电芯201的小部分重量，降低托盘底板20的强度要求，可以减小托盘底板20厚度，也可以简化托盘底板20结构，从而减少托盘底板20制造材料，有利于电池包200的轻量化设计以及成本降低。
在本申请的一些实施例中，第一本体11包括主体部111，主体部111设有支撑部112，支撑部112朝向电池托盘100的放置槽62延伸，在边梁10的宽度方向，支撑部112位于 主体部111靠近放置槽62的一侧，支撑部112用于支撑托盘底板20，支撑部112与主体部111相连，进一步，在边梁10的宽度方向，主体部111靠近安装空间61的一侧连接有支撑部112，支撑部112朝向安装空间61内延伸设置，当边梁10以图4中方向放置时，边梁10的宽度方向是指图4中的左右方向，安装空间61位于左侧边梁10的右侧，且在电池托盘100的高度方向，图4中的上下方向为电池托盘100高度方向，支撑部112的正投影、第二本体12的正投影和受压区域2011的正投影具有重合区域，也可以理解为，支撑部112的正投影与受压区域2011的正投影具有重合区域，第二本体12的正投影与受压区域2011的正投影也具有重合区域，且支撑部112的正投影和受压区域2011的正投影的重合区域、与第二本体12的正投影和受压区域2011的正投影的重合区域具有重合部分，电芯201放置在托盘底板20的托盘底板2内后，这样设置能够保证支撑部112支撑在电芯201下方。
在一些可选的实施例中，第二本体12与第一本体11为分体加工件，也可以理解为，第二本体12和第一本体11为单独的零部件，第二本体12和第一本体11不是一体成型件，第二本体12和第一本体11单独加工生产，第二本体12固定至第一本体11，也就是说，第二本体12和第一本体11固定连接，例如可以通过焊接方式将第二本体12和第一本体11焊接固定，也可以通过螺接方式将第二本体12和第一本体11连接固定，还可以通过铆接和粘接的方式将第二本体12和第一本体11连接固定，本申请以焊接方式将第二本体12和第一本体11焊接连接为例进行说明。
第二本体12的至少部分结构位于支撑部112的下方，边梁10以图6中方向放置时，当第二本体12的部分结构位于支撑部112的下方时，第二本体12的另一部分结构可以位于主体部111的下方和/或主体部111的上方和/或主体部111的一侧，例如，第二本体12的部分结构位于支撑部112的下方，第二本体12的另一部分结构位于主体部111的下方。通过将第二本体12与第一本体11设置为分体加工件，能够单独生产第二本体12和第一本体11，可单独调整第二本体12、第一本体11的厚度和材料，使边梁10满足不同位置强度、重量的设计要求，与只能整体调整厚度和材料的一体辊压边梁10相比，本申请的边梁10生产成本降低，同时，一体辊压边梁10难以一体辊出复杂的截面，本申请中通过将边梁10设置为分体式结构，可以形成更加复杂的截面的边梁10。
由此，通过设置支撑部112，边梁10承载电芯201的大部分重量，电池托盘100的托盘底板20承载电芯201的小部分重量，降低托盘底板20的强度要求，可以减小托盘底板20厚度，有利于电池包200的轻量化设计以及成本降低，并且，通过将第二本体12与第一本体11设置为分体加工件，能够单独生产第二本体12和第一本体11，可以单独调整第二本体12、第一本体11的厚度和材料，使边梁10满足不同位置强度、重量的设计要求。
在本申请的一些实施例中，第二本体12与支撑部112、主体部111均连接，进一步地，第二本体12与支撑部112、主体部111均固定连接，托盘底板20与支撑部112固定连接，托盘底板20与支撑部112焊接或粘接或铆接。在一些可选的实施例中，如图6所示，当左侧的边梁10以图6中方向放置时，第二本体12的整体结构均位于第一本体11下方，第二本体12的部分结构位于支撑部112下方，第二本体12的部分结构位于主体部111下方，位于主体部111下方的第二本体12与主体部111的底板114焊接连接，位于支撑部112下方的第二本体12与支撑部112焊接连接，其中，第二本体12具有结构加强作用，这样设置能够进一步提升边梁10的结构强度和刚度，可以降低边梁10变形风险。
在本申请的一些实施例中，如图4和图6所示，在边梁10的宽度方向，第二本体12的一端延伸出支撑部112且与托盘底板20连接，进一步地，第二本体12靠近放置槽62的一端伸出第一本体11且与托盘底板20固定连接。在一些可选的实施例中，如图4和图6所示，以电池包200左侧的边梁10为例进行说明，第二本体12靠近放置槽62的一端为第二本体12的右端，第二本体12的右端朝向放置槽62方向延伸，且第二本体12的右端伸出第一本体11的右端，第二本体12的伸出第一本体11的部分结构与托盘底板20的下表面连接(例如焊接连接)。通过第二本体12与托盘底板20直接连接，电芯201放置在托 盘底板20上后，能够增加边梁10对电芯201的支撑面积，可以进一步提升电池包200振动模态，也可以提升边梁10结构强度。
在本申请的一些实施例中，如图4、图6和图9所示，第二本体12设有朝向第一本体11凸出的第一凸台121，第一凸台121与支撑部112固定连接，进一步地，第二本体12的位于支撑部112下方的结构设置有朝向第一本体11凸出的第一凸台121，第一凸台121与支撑部112固定连接。在一些可选的实施例中，当边梁10以图4中方向放置时，在边梁10的上下方向，第一凸台121与支撑部112对应设置，且第一凸台121与支撑部112焊接连接。如此设置能够进一步提升边梁10结构强度，可靠支撑电芯201，可以进一步提高边梁10的稳定性，从而可以避免支撑部112变形，使支撑部112可靠支撑电芯201。
在本申请的一些实施例中，如图4、图6和图9所示，第二本体12设置有朝向托盘底板20凸出的第二凸台125，第二凸台125与托盘底板20固定连接。在一些可选的实施例中，在边梁10的宽度方向，第二本体12的伸出第一本体11且位于托盘底板20下方的结构设置有朝向托盘底板20凸出的第二凸台125，第二凸台125与托盘底板20固定连接(例如焊接)，如此设置能够进一步提升边梁10结构强度，更加可靠支撑电芯201，可以进一步提高边梁10的稳定性。
在本申请的一些实施例中，在边梁10的宽度方向上，当电池托盘100以图4中方向摆放时，边梁10的宽度方向是指图4中左右方向，支撑部112的长度尺寸为C，支撑部112的用于支撑电芯201的长度尺寸为E，满足关系式：0.2C≤E≤0.4C。如此设置能够保证支撑部112和托盘底板20搭接尺寸，可以提升电池托盘100结构强度，从而可以可靠支撑电芯201。
在本申请的一些实施例中，在边梁10的宽度方向，当边梁10以图4中方向放置时，边梁10的宽度方向是指图4中的左右方向，支撑部112用于支撑电芯201的长度尺寸为E，满足关系式：30mm≤E≤100mm。其中，在图4中的上下方向，支撑部112的正投影与受压区域2011的正投影在边梁10的宽度方向重合长度为30mm-100mm，如此设置能够保证支撑部112支撑电芯201的支撑面积，也能够保证支撑部112对电芯201起到支撑作用，可以使支撑部112可靠支撑电芯201，从而降低电芯201发生振动失效风险，从而可以降低电池包200发生振动失效风险，进而保证电池包200振动安全。
在本申请的一些实施例中，如图2和图7所示，主体部111可以包括：顶板113、底板114、第一侧板115和第二侧板116，第一侧板115连接在顶板113和底板114之间，在边梁10的高度方向上，顶板113和底板114间隔设置，如图6所示，在边梁10的宽度方向上，第一侧板115和第二侧板116间隔开设置，第二侧板116连接在支撑部112和顶板113之间，第二侧板116位于第一侧板115的靠近电池托盘100的放置槽61的一侧，第二侧板116连接支撑部112、顶板113。在一些可选的实施例中，第二侧板116的下端连接支撑部112，第二侧板116的上端与顶板113连接，支撑部112与第二本体12焊接连接，且顶板113和底板114之间连接有结构加强板117，结构加强板117位于第一侧板115和第二侧板116之间。如图4和图6所示，第一侧板115下端连接底板114，底板114与第二本体12、结构加强板117均连接，底板114与第二本体12焊接连接，结构加强板117上端连接有第一连接板119，第一连接板119与第一本体11连接，第一连接板119与第一本体11焊接连接，这样设置能够提升边梁10的结构强度和刚度，也能够提升边梁10结构稳定性，可以降低边梁10变形风险。
并且，在边梁10的宽度方向上，结构加强板117与第一侧板115、第二侧板116均间隔开设置，结构加强板117、底板114、第一侧板115和顶板113共同限定出第一空腔122，结构加强板117、第二本体12、第二侧板116和顶板113共同限定出第二空腔123，第一空腔122和第二空腔123在边梁10的宽度方向上排布，第一空腔122受到撞击时，第一空腔122能够吸收碰撞力，降低了传递至电池包200内部碰撞力大小，可以降低电池包200内电芯201被撞坏风险，从而可以提升电池包200使用安全性。
在一些实施例中，边梁10的高度方向可以与电池托盘100的高度方向一致，边梁10的宽度方向可以与电池托盘100的宽度方向或长度方向一致。当电池托盘100安装至车辆2000时，边梁10的高度方向可以与车辆2000的高度方向一致，边梁10的宽度方向可以与车长方向或车宽方向一致。
在本申请的一些实施例中，主体部111设置有拉铆螺母120，具体地，拉铆螺母120设置在顶板113，拉铆螺母120伸入至第一空腔122内，通过螺栓和拉铆螺母120配合连接将边梁10和电池包200的盖体202装配在一起。
在本申请的一些实施例中，如图2和图7所示，结构加强板117倾斜连接在顶板113和底板114之间，结构加强板117倾斜支撑在顶板113和底板114之间，能够进一步提升边梁10的结构强度和刚度，也能够提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以延长边梁10、电池托盘100的使用寿命。
在一些可选的实施例中，当边梁10以图4中的放置方式放置时，从边梁10的上端至下端方向，结构加强板117朝向远离放置槽62倾斜设置，也可以理解为，结构加强板117朝向远离电池托盘100的安装空间61倾斜设置。也可以理解为，从电池托盘100上方至下方方向，结构加强板117朝向远离安装空间61的方向倾斜延伸设置。和/或从边梁10的上端至下端方向，第二侧板116朝向靠近放置槽62倾斜，如此设置能够进一步提升边梁10结构强度和刚度，可以进一步提高边梁10的稳定性，从而可以进一步提升边梁10支撑电芯201能力，也可以进一步降低边梁10变形风险。
如图2和图7所示，从边梁10的上端至下端方向，第二侧板116朝向靠近放置槽62倾斜设置。如此设置能够进一步提升边梁10结构强度，可以进一步提高边梁10的稳定性，从而可以进一步提升边梁10支撑电芯201能力，也可以进一步降低边框20变形风险。
在本申请的一些实施例中，如图5和图6所示，第二侧板116和结构加强板117间的夹角为α，满足关系式：50°≤α≤70°，例如，α为60°，如此设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在一些可选的实施例中，如图5和图6所示，结构加强板117与底板114间的夹角为β，满足关系式：110°≤β≤140°，例如：β为120°。如此设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在本申请的一些实施例中，第一空腔122的横截面形状和第二空腔123的横截面形状均为三角形或者梯形，这样设置能够提升边梁10结构稳定性，可以进一步降低边梁10变形风险。需要说明的是，第一空腔122的横截面形状是指在边梁23宽度方向上的截面形状，也即，第一空腔122的与边梁10的长度方向垂直的截面形状，第二空腔123的横截面形状是指在边梁23宽度方向上的截面形状，也即，第二空腔123的与边梁10的长度方向垂直的截面形状。
根据本申请的一个具体实施例，第二空腔123的横截面形状为三角形，进一步地，三角形为等腰三角形或等边三角形，底板114构成三角形的底壁，这样设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险。
在一些可选的实施例中，第二本体12和结构加强板117之间的夹角构造为三角形的底角，底角的角度为β1，满足关系式：50°≤β1≤70°，例如，β1为60°，如此设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在一些可选的实施例中，三角形的顶角为α，即第二侧板116和结构加强板117间的夹角，满足关系式：50°≤α≤70°，例如，α为60°，这样设置能够将第二空腔123的横截面形状设置为等边三角形，这样设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100使用寿命。
根据本申请的另一个具体实施例，如图4、图6和图9所示，第二空腔123的横截面形状设置为梯形，进一步地，第二本体12构成梯形的底壁，第二本体12和结构加强板117之间的夹角构造为第二空腔123的梯形的底角，底角的角度为β2，满足关系式：50°≤β2≤70°，例如，β2为60°，这样设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在一些可选的实施例中，如图4所示，第二空腔123的梯形的两个腰之间的夹角为α，即第二侧板116和结构加强板117间的夹角，满足关系式：50°≤α≤70°，例如，α为60°，如此设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在本申请的一些实施例中，如图4、图6和图9所示，第一空腔122的横截面形状为梯形，底板114构成第一空腔122的梯形的顶壁，顶板113构成第一空腔122的梯形的底壁，这样设置能够进一步提升边梁10结构稳定性，可以进一步降低边梁10变形风险，从而可以进一步延长边梁10、电池托盘100的使用寿命。
在本申请的一些实施例中，如图4、图6和图9所示，在边梁10的高度方向上，边梁10的高度方向是指图4中的上下方向，底板114的下表面与支撑部112的下表面之间的高度差为H，满足关系式：5mm≤H≤10mm,例如：H为8mm。其中，如图4所示，托盘底板20设置在支撑部112的上表面，支撑部112支撑托盘底板20，托盘底板20的下表面设置有保温层，保温层对电池包200起到保温作用，保温层位于相对设置的两个边梁10之间，通过将底板114的下表面与支撑部112的下表面之间的高度差设置为H，能够在托盘底板20的下方形成设置保温层的空间，可以保证保温层的厚度适宜，从而更好地对电池包200进行保温，也可以避免保温层的下表面凸出电池托盘100，从而使电池托盘100的底部更加平整。
在本申请的一些实施例中，如图1-图4所示，边梁10连接有吊耳结构30，边梁10和吊耳结构30可以焊接连接，吊耳结构30设置有安装孔31，通过紧固件(例如螺栓)将吊耳结构30安装于车辆2000上，实现将电池包200安装于车辆2000的目的。
在本申请的一些实施例中，如图4和图6所示，当边梁10以图6中方向放置时，在边梁10的高度方向上，支撑部112的高度低于主体部111的上表面高度，托盘底板20安装于安装空间61内后，通过使支撑部112的高度低于主体部111的上表面高度，能够保证支撑部112支撑在托盘底板20下方，也能够保证托盘底板20可安装于安装空间61内，保证支撑部112可以支撑托盘底板20以及电芯201。
在本申请的一些实施例中，如图4和图6所示，第一本体11和第二本体12均构造为一体成型件，这样设置能够将第一本体11和第二本体12结构强度和刚度，从而进一步提升边梁10承重能力。
在本申请的一些实施例中，第一本体11和第二本体12通过至少一列焊点组焊接连接，每列焊点组包括多个焊点，每列焊点组中任意相邻的两个焊点间的间隔距离为D，满足关系式：80mm≤D≤120mm。其中，第一本体11和第二本体12通过激光焊接方式焊接连接，焊点太密会导致第一本体11和第二本体12发生变形，焊点太少会导致第一本体11和第二本体12装配强度不够，通过使每列焊点组中任意相邻的两个焊点间的间隔距离为80mm-120mm之间，可以避免第一本体11和第二本体12发生变形，也可以保证第一本体11和第二本体12装配强度，避免第一本体11和第二本体12分离。
在本申请的一些实施例中，如图9所示，托盘底板20和边梁10共同限定出用于放置电芯201的放置槽62，进一步地，边梁10设置在托盘底板20的边缘，支撑部112支撑在托盘底板20下方，边梁10和托盘底板20共同限定出放置槽62，电芯201放在在放置槽62内，且电芯201固定于托盘底板20上，进一步地，电芯201可以粘接于托盘底板20上，从而将电芯201固定于电池托盘100内，避免电芯201位置发生移动。
在本申请的一些实施例中，托盘底板20与支撑部112固定连接。进一步地，托盘底板20与支撑部112粘接连接，或者托盘底板20与支撑部112焊接连接，如此设置能够将边梁 10和托盘底板20可靠地固定在一起，可以避免托盘底板20与支撑部112分离，从而放置电芯201从电池托盘100掉落。
在本申请的一些实施例中，托盘底板20和边梁10均为金属件。进一步地，托盘底板20、第一本体11和第二本体12可以由铝材料制成，托盘底板20、第一本体11和第二本体12也可以由钢材料制成，但本申请不限于此，托盘底板20、第一本体11和第二本体12也可以由其他与钢材料起到相同的金属材料制成，例如，托盘底板20、第一本体11和第二本体12均由钢材料制成，托盘底板20、第一本体11和第二本体12可以由钢材料辊压形成，托盘底板20、第一本体11和第二本体12也可以由钢材料挤出形成。其中，通过将托盘底板20、第一本体11和第二本体12设置为金属件，能够提高边梁10、托盘底板20承重能力，可以降低边梁10、托盘底板20变形风险。并且，钢材料制成的第一本体11和第二本体12能够耐受1500℃以上的高温，保证了边梁10在电芯201热失控时的完整性。
在本申请的一些实施例中，如图2和图7所示，电池托盘100包括多个膨胀梁121，多个膨胀梁121安装于安装空间61内，多个膨胀梁121在电池托盘100的前后方向依次间隔开设置，电芯201放置在托盘底板20上后，相邻两个膨胀梁121之间设置有电芯201，当电芯201发生膨胀时，膨胀梁121可以对电芯201进行限位，从而可以提升电池包200使用安全性。
如图1-图9所示，根据本申请实施例的电池包200包括：电芯201、电池托盘100和盖体202。电池托盘100为上述实施例中的电池托盘100，盖体202和电池托盘100共同限定出用于放置电芯201的放置腔203，盖体202与电池托盘100连接。进一步地，电池托盘100包括边框60，边框60限定出安装空间61，边框60具有边梁10，托盘底板20安装于安装空间61内，边梁10和托盘底板20限定出用于放置电芯201的放置槽62。其中，当电池托盘100以图4中方向放置时，盖体202盖设于放置槽62上方以形成放置腔203，电芯201放置在放置腔203内，通过螺栓和拉铆螺母120配合连接将盖体202安装于边框60。进一步地，盖体202和边框60的连接处夹设有密封件204(例如密封圈或密封泡棉)，密封件204将盖体202和边框60之间的间隙密封，以使放置腔203密封，保证电池包200的密封性。
在本申请的一些实施例中，如图2所示，电池包200还可以包括：压板205，压板205构造为闭环形结构，盖体202、密封件204夹设在压板205和边框60之间，使用螺栓穿过压板205、盖体202和密封件204与拉铆螺母120连接，将压板205、盖体202、密封件204和边框60装配在一起，压板205可以使整个密封件204受压均匀，保证放置腔203密封可靠。
在本申请的一些实施例中，如图2所示，放置腔203内可以设置有换热装置206，换热装置206可以用于加热或冷却电芯201，例如：换热装置206可以由换热板构成，换热板内可以有液体流道，通过液体在液体流道内流动与电芯201进行热交换，换热装置206的具体结构不做限定，只要能加热或冷却电芯201即可，通过换热装置206与电芯201热交换，可以使电芯201保持在适宜工作温度，从而可以保证电池包200工作性能。
在本申请的一些实施例中，如图2所示，放置腔203内可以设置有隔热棉207，隔热棉207设置在换热装置206和盖体202之间，隔热棉207具有隔热作用，在低温环境下，隔热棉207可以避免电芯201热量通过盖体202传递至电池包200外部，高温环境下，隔热棉207可以避免环境中热量通过盖体202传递至电池包200内部，从而更好地使电芯201保持在适宜工作温度。
在本申请的一些实施例中，如图2所示，电池包200还可以包括防护板208，防护板208设置在电池托盘100下端，防护板208可以对电池包200起到保护作用，避免电池托盘100被撞破。
如图10所示，根据本申请实施例的车辆2000，包括上述实施例的电池包200，电池包200安装于车辆2000为车辆2000提供电能，边梁10承载电芯201的大部分重量，电池托 盘100的托盘底板20承载电芯201的小部分重量，降低托盘底板20的强度要求，可以减小托盘底板20厚度，有利于电池包200的轻量化设计以及成本降低，从而有助于车辆2000的轻量化设计以及成本降低，并且，通过将第二本体12与第一本体11设置为分体加工件，能够单独生产第二本体12和第一本体11，可以单独调整第二本体12、第一本体11的厚度和材料，使边梁10满足不同位置强度、重量的设计要求。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (15)

  1. 一种电池托盘(100)，所述电池托盘(100)具有用于放置电芯(201)的放置槽(62)，其特征在于，包括：
    托盘底板(20)，所述托盘底板(20)具有用于支撑电芯(201)的受压区域(2011)；
    边梁(10)，所述边梁(10)包括第一本体(11)和第二本体(12)，所述第二本体(12)与所述第一本体(11)连接且至少部分位于所述第一本体(11)背离所述托盘底板(20)的一侧，所述第一本体(11)用于支撑所述托盘底板(20)，在所述电池托盘(100)的高度方向，所述第一本体(11)的正投影、所述第二本体(12)的正投影和所述受压区域(2011)的正投影具有重合区域。
  2. 根据权利要求1所述的电池托盘(100)，其特征在于，所述第一本体(11)包括：主体部(111)，所述主体部(111)设有支撑部(112)，所述支撑部(112)用于支撑所述托盘底板(20)，在所述边梁(10)的宽度方向，所述支撑部(112)位于所述主体部(111)靠近所述放置槽(62)的一侧，且在所述电池托盘(100)的高度方向，所述支撑部(112)的正投影、所述第二本体(12)的正投影和所述受压区域(2011)的正投影具有重合区域。
  3. 根据权利要求2所述的电池托盘(100)，其特征在于，所述第二本体(12)与所述支撑部(112)、所述主体部(111)均固定连接，所述托盘底板(20)与所述支撑部(112)固定连接。
  4. 根据权利要求2或3所述的电池托盘(100)，其特征在于，在所述边梁(10)的宽度方向，所述第二本体(12)的一端延伸出所述支撑部(112)且与所述托盘底板(20)固定连接。
  5. 根据权利要求2-4中任一项所述的电池托盘(100)，其特征在于，所述第二本体(12)设有朝向所述第一本体(11)凸出的第一凸台(121)，所述第一凸台(121)与所述支撑部(112)固定连接。
  6. 根据权利要求1-5中任一项所述的电池托盘(100)，其特征在于，所述第二本体(12)设有朝向所述托盘底板(20)凸出的第二凸台(125)，所述第二凸台(125)与所述托盘底板(20)固定连接。
  7. 根据权利要求2-5中任一项所述的电池托盘(100)，其特征在于，在所述边梁(10)的宽度方向上，所述支撑部(112)的长度尺寸为C，所述支撑部(112)的用于支撑所述电芯(201)的长度尺寸为E，满足关系式：0.2C≤E≤0.4C。
  8. 根据权利要求2-5中任一项所述的电池托盘(100)，其特征在于，所述主体部(111)包括：顶板(113)、底板(114)、第一侧板(115)和第二侧板(116)，所述第一侧板(115)连接在所述顶板(113)和所述底板(114)之间，在所述边梁(10)的高度方向上，所述顶板(113)和所述底板(114)间隔设置，在所述边梁(10)的宽度方向上，所述第一侧板(115)和所述第二侧板(116)间隔设置，所述第二侧板(116)连接在所述支撑部(112)和所述顶板(113)之间，且所述顶板(113)和所述底板(114)之间连接有结构加强板(117)。
  9. 根据权利要求8所述的电池托盘(100)，其特征在于，所述结构加强板(117)倾斜连接在所述顶板(113)和所述底板(114)之间。
  10. 根据权利要求8或9所述的电池托盘(100)，其特征在于，从所述边梁(10)的上端至下端方向，所述结构加强板(117)朝向远离所述放置槽(62)倾斜，和/或，从所述边梁(10)的上端至下端方向，所述第二侧板(116)朝向靠近所述放置槽(62)倾斜。
  11. 根据权利要求1-10中任一项所述的电池托盘(100)，其特征在于，所述第一本体(11)和所述第二本体(12)通过至少一列焊点组焊接连接，每列所述焊点组包括 多个焊点，每列所述焊点组中任意相邻的两个所述焊点间的间隔距离为D，满足关系式：80mm≤D≤120mm。
  12. 根据权利要求1-11中任一项所述的电池托盘(100)，其特征在于，所述托盘底板(20)和所述边梁(10)均为金属件，所述托盘底板(20)和所述边梁(10)共同限定出用于放置电芯(201)的放置槽(62)。
  13. 根据权利要求1-12中任一项所述的电池托盘(100)，其特征在于，所述第一本体(11)和所述第二本体(12)均构造为一体成型件。
  14. 一种电池包(200)，其特征在于，包括：
    电芯(201)；
    电池托盘(100)，所述电池托盘(100)为根据权利要求1-13中任一项所述的电池托盘(100)；
    盖体(202)，所述盖体(202)和所述电池托盘(100)共同限定出用于放置所述电芯(201)的放置腔(203)，所述盖体(202)与所述电池托盘(100)连接。
  15. 一种车辆(2000)，其特征在于，包括根据权利要求14所述的电池包(200)。
PCT/CN2023/081423 2022-03-14 2023-03-14 电池托盘、电池包以及车辆 WO2023174298A1 (zh)

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CN213936400U (zh) * 2020-06-16 2021-08-10 苏州亿创特智能制造有限公司 一种辊压型材、电池包骨架及电池包
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

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