WO2023174309A1 - 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 PDFInfo
- Publication number
- WO2023174309A1 WO2023174309A1 PCT/CN2023/081454 CN2023081454W WO2023174309A1 WO 2023174309 A1 WO2023174309 A1 WO 2023174309A1 CN 2023081454 W CN2023081454 W CN 2023081454W WO 2023174309 A1 WO2023174309 A1 WO 2023174309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frame
- bottom plate
- tray
- battery
- support
- Prior art date
Links
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- 238000009434 installation Methods 0.000 claims description 72
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- 239000011347 resin Substances 0.000 description 14
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- 238000013461 design Methods 0.000 description 10
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- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
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- 230000000670 limiting effect Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
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- 239000000155 melt Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
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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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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 battery tray includes a frame and a tray bottom plate.
- the frame and the tray bottom plate are welded and connected to form a battery tray.
- the tray bottom plate is constructed as a plate structure and is used to support the battery core.
- the tray bottom plate mainly carries the weight of the battery core. This results in a thicker 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.
- the frame of the battery tray carries most of the weight of the battery cells, and the bottom plate of the tray only carries a small part of the weight of the battery cells. This can reduce the thickness of the bottom plate of the tray, which is beneficial to the battery. Lightweight design and cost reduction of pallets and battery packs.
- This application further proposes a battery pack.
- This application further proposes a vehicle.
- the battery tray according to the present application includes: a tray bottom plate, the tray bottom plate includes a bottom plate body, the bottom plate body defines a placement slot for placing battery cores, and the bottom wall of the placement slot has a support for supporting the battery cores. Pressure area; frame, the bottom plate body is installed on the frame, the frame has a support part, the support part is used to support the bottom plate body, in the height direction of the battery tray, the orthographic projection of the support part There is an overlap area with the orthographic projection of the pressure area.
- the frame mainly carries most of the weight of the battery cells, and the tray bottom plate only carries a small part of the weight of the battery cells. This can reduce the thickness of the tray bottom plate, which is beneficial to the stability of the battery tray and battery pack. Lightweight design and cost reduction.
- Figure 1 is an exploded view of a battery pack according to an embodiment of the present application
- Figure 2 is a cross-sectional view of a battery pack according to an embodiment of the present application.
- Figure 3 is an enlarged view of point A in Figure 2;
- FIG. 4 is a schematic assembly diagram of the battery tray and battery core according to the embodiment of the present application.
- Figure 5 is a schematic diagram of a battery tray according to an embodiment of the present application.
- Figure 6 is an exploded view of a battery tray according to an embodiment of the present application.
- Figure 7 is a schematic diagram of the tray bottom plate of the battery tray according to an embodiment of the present application.
- Figure 8 is a schematic diagram of the frame of a battery tray according to an embodiment of the present application.
- Figure 9 is a schematic diagram of the side beams of the battery tray according to an embodiment of the present application.
- Figure 10 is an enlarged view of B in Figure 9;
- Figure 11 is a partial enlarged view of the battery tray and battery cell assembly according to an embodiment of the present application.
- Figure 12 is a schematic diagram of the tray bottom plate of the battery tray according to another embodiment of the present application.
- Figure 13 is an enlarged view of C in Figure 12;
- Figure 14 is a cross-sectional view of a battery tray according to an embodiment of the present application.
- Figure 15 is an enlarged view of D in Figure 14;
- Figure 16 is a schematic diagram of a battery pack according to an embodiment of the present application.
- Figure 17 is a schematic diagram of a pallet bottom plate according to an embodiment of the present application.
- Figure 18 is another schematic view of the pallet floor shown in Figure 17;
- Figure 19 is an enlarged view of part E circled in Figure 17;
- Figure 20 is yet another schematic view of the pallet bottom shown in Figure 17;
- Figure 21 is an enlarged view of the F portion circled in Figure 20;
- Figure 22 is a partial schematic view of the pallet floor shown in Figure 20;
- Figure 23 is a cross-sectional view of a battery tray according to an embodiment of the present application.
- Figure 24 is an enlarged view of the G portion circled in Figure 23;
- Figure 25 is an exploded view of a battery pack according to an embodiment of the present application.
- Figure 26 is a schematic diagram of the assembly of the tray bottom plate and battery shown in Figure 25;
- Figure 27 is a schematic diagram of the frame shown in Figure 25;
- Figure 28 is a schematic diagram of a vehicle according to an embodiment of the present application.
- the battery tray 100 according to the embodiment of the present application is described below with reference to FIGS. 1 to 15 .
- the battery tray 100 is applied to the battery pack 200 .
- the battery tray 100 includes: a tray bottom plate 10 and a frame 20 .
- the tray bottom plate 10 includes a bottom plate body 11.
- the tray bottom plate 10 may also include an extension 12.
- the bottom plate body 11 defines a placement slot 111 for placing the battery core 201 or the battery module. This application takes the placement slot 111 to place the battery core 201 as an example. Be explained.
- the bottom wall 113 of the placement slot has a pressure-bearing area 112 for supporting the battery core 201.
- the pressure-bearing area 112 refers to the bottom wall 113 of the placement slot in the height direction of the battery tray 100 when the battery core 201 is installed in the placement slot 111.
- the area where the orthographic projection of the battery core 201 coincides with the orthographic projection of the battery core 201 can also be understood as the contact area between the battery core 201 and the bottom wall 113 of the battery core 201 when the battery core 201 is installed in the placement slot 111.
- the contact area includes the battery core
- the area between 201 and the bottom wall 113 of the placement slot is in direct contact or the area in indirect contact.
- the wall 113 is in indirect contact.
- the battery core 201 When there is no other object between the battery core 201 and the bottom wall 113 of the placement slot, the battery core 201 is in direct contact with the bottom wall 113 of the placement slot. Alternatively, it can also be understood that the weight of the battery core 201 directly acts on the bottom wall 113 of the placement slot.
- the area of the bottom wall 113 of the groove is the pressure area 112 .
- the orthographic projection of the bottom wall 113 of the placement groove is the projection of the bottom wall 113 of the placement groove in a plane perpendicular to the height direction of the battery tray 100 .
- the orthographic projection of the battery core 201 In 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 battery core 201 When the battery core 201 is installed in the battery tray 100 , the battery core 201 is located in the pressure-bearing area 112 of the placement groove 111 , and the extension portion 12 extends along the circumferential edge of the base plate body 11 .
- the extension portion 12 is configured as a ring structure, specifically, the extension portion 12 is configured as a closed loop structure.
- the bottom plate body 11 is installed on the frame 20. Further, the bottom plate body 11 is fixedly installed on the frame 20. The bottom plate body 11 can be bonded to the frame 20. The bottom plate body 11 can also be installed on the frame 20 through bolts. The specific details of the bottom plate body 11 and the frame 20 The assembly method is not specifically limited and can be selected according to actual needs.
- the frame 20 defines an installation space 21 , the bottom plate body 11 is installed in the installation space 21 , and the extension 12 is located outside the installation space 21 . In the height direction of the battery tray 100 , the extension 12 is located on the frame 20 above and provided on the frame 20.
- the frame 20 has a support portion 22. The support portion 22 can be extended toward the installation space 21.
- the support portion 22 is used to support the bottom plate body 11.
- the height direction of the battery tray 100 refers to the up and down direction of the battery tray 100, and the orthographic projection of the support part 22 and the orthographic projection of the pressure area 112 have an overlapping area.
- the support part 22 supports the battery core 201, and it can be ensured that the frame 20 is mainly used to bear the weight of the battery core 201. It can be understood that when the battery tray 100 is installed on the vehicle 2000, the height direction of the battery tray 100 may be consistent with the height direction of the vehicle 2000.
- this application takes the battery tray 100 placed in the up and down direction as an example.
- the bottom plate body 11 is installed
- the extension part 12 is arranged outside the installation space 21.
- the extension part 12 is arranged corresponding to the frame 20.
- the extension part 12 is located on the frame 20.
- the extension part 12 is disposed directly opposite the frame 20 .
- the extension part 12 can cover the entire upper surface of the frame 20 .
- the pallet bottom plate 10 basically does not bear the weight of the battery core 201 or only carries a small part of the weight of the battery core 201. This can greatly reduce the load-bearing requirements of the pallet bottom plate 10, and the pallet bottom plate 10 can be used with lower strength. , made of thinner materials.
- the pallet floor 10 is provided as an insulating member.
- the pallet bottom plate 10 is provided as a non-metallic part, and the pallet bottom plate 10 made of lightweight insulating composite material can be used.
- the lightweight insulating composite material can be made of resin and glass fiber.
- the resin can be epoxy resin or polyurethane, but the application is not limited thereto.
- the lightweight composite material can also be made of other composite materials that play the same role as resin and glass fiber. Such an arrangement can reduce the size of the pallet.
- the weight of the bottom plate 10 is conducive to the lightweight design of the battery tray 100 and the battery pack 200.
- the existing tray bottom plate 10 is made of aluminum material.
- the pallet bottom plate 10 is made of an insulating composite material, which can reduce the weight of the tray bottom plate 10.
- the production cost is beneficial to reducing the production cost of the battery tray 100 and the battery pack 200 .
- the pallet bottom plate 10 made of non-metallic materials has excellent electrical insulation properties. When the vehicle 2000 is severely grounded, the battery pack 200 will not be exposed to high-voltage risks such as arcing.
- the pallet bottom plate 10 is constructed as a one-piece molded piece.
- the pallet bottom plate 10 is molded using a lightweight insulating composite material. During the molding process, the pallet bottom plate 10 forms a good airtightness after being solidified due to the resin melt flow. , and at the same time, the mold molding can ensure that the pallet bottom plate 10 has good flatness and dimensional accuracy, and ensures the sealing function of the pallet bottom plate 10 .
- the frame 20 can be formed by metal tailor welding. After welding, it is only necessary to ensure the strength of the welding structure and the necessary product flatness. The tailor welding efficiency is high, which improves the production efficiency of the battery tray 100, and the tray bottom plate 10 does not need to be welded and polished.
- the tray bottom plate 10 can be molded using composite materials.
- the production efficiency of the tray bottom plate 10 is high and the mold precision is high so that a higher flatness can be obtained and the size requirements for the battery core 201 can be reduced.
- the existing battery tray 100 does not distinguish the two functions of load-bearing and sealing in the product structure.
- the frame 20 is mainly responsible for load-bearing
- the tray bottom plate 10 is mainly responsible for sealing the battery tray 100 , which improves the manufacturing efficiency and low yield rate of the battery tray 100 .
- the frame 20 carries most of the weight of the battery core 201, and the tray bottom plate 10 basically does not bear the weight of the battery core 201 or only carries a small part of the weight of the battery core 201.
- the tray bottom plate 10 mainly bears the weight of the battery core 201.
- the sealing effect can reduce the thickness of the pallet bottom plate 10.
- the pallet bottom plate 10 made of lightweight composite materials can be used, which is beneficial to the lightweight design and cost reduction of the battery tray 100 and the battery pack 200.
- the pallet bottom plate 10 and After the frames 20 are assembled together there is no risk of sealing failure of the battery tray 100 due to welding, and there is no need to polish the weld seams and test the air tightness of the battery tray 100 , which improves the production efficiency of the battery tray 100 .
- the bottom wall 113 of the placement groove is formed with a pressure area 112. It can also be understood that the pressure area 112 is provided on the bottom wall 113 of the placement groove.
- the support part 22 when the battery tray 100 When placed in the manner shown in Figure 11, the support part 22 is located below the bottom plate body 11, and the support part 22 is supported on the bottom wall 113 of the placement slot. This arrangement can ensure that the support part 22 is supported below the pressure area 112, which can further ensure The support part 22 supports the battery core 201, which can further ensure that the frame 20 is used to bear most of the weight of the battery core 201, thereby making the pressure area 112 reasonably positioned.
- the frame 20 includes a first side beam, a second side beam, a third side beam and a fourth side beam.
- the first side beam and the second side beam The third side beam and the fourth side beam are arranged oppositely along the second direction.
- the first side beam and the second side beam can be configured as side beams 23 of the frame 20.
- the side beam is one side beam 23, the second side beam is another side beam 23, the third side beam is configured as one of the front end beam 24 and the rear end beam 25 of the frame 20, and the fourth side beam is configured as a front end beam. 24 and the other one of the rear end beams 25.
- the first side beam and the second side beam are spaced apart in the left and right directions in Figure 8.
- the front end beam 24 and the rear end beam 25 are connected between the two side beams 23, the first side beam, the second side beam, the third side beam and the fourth side beam are connected to form the installation space 21, the first side beam, the second side beam, the third side beam
- the connection between the third side beam and the fourth side beam includes direct connection and indirect connection.
- the first side beam and the third side beam can be directly connected.
- Beams and third edge beams can also be connected indirectly through other beams.
- One of the first direction and the second direction is the length direction of the battery tray 100
- the other one of the first direction and the second direction is the width direction of the battery tray 100 .
- the width direction of the battery tray 100 can be consistent with the width direction of the vehicle 2000
- the length direction of the battery tray 100 can be It is consistent with the length direction of vehicle 2000.
- the width direction of the battery tray 100 may also be consistent with the length direction of the vehicle 2000
- the length direction of the battery tray 100 may be consistent with the width direction of the vehicle 2000 .
- the first direction may refer to the left-right direction in FIG. 6
- the second direction may refer to the front-to-back direction in FIG. 6
- the first direction may refer to the left-right direction in FIG. 6
- the front-to-back direction and the second direction in may refer to the left-right direction in FIG. 6
- This application takes the left-right direction in FIG. 6 as the first direction and the front-to-back direction in FIG. 6 as the second direction as an example for description.
- the first side beam and/or the second side beam are provided with support portions 22.
- the first side beam and the second side beam are both provided with support portions 22.
- each battery core 201 is supported by the support part 22, which can further ensure that the support part 22 supports the battery core 201, and can further ensure that the frame 20 is used to carry most of the weight of the battery core 201, so that the support portion 22 can be set at a reasonable position.
- the frame 20 further includes a support beam 26, which is connected between the first side beam and the second side beam, or the support beam 26 is connected between the front end beam 24 and the second side beam. between the rear end beams 25, or the support beam 26 is connected between the front end beam 24 and the side beam 23, or the support beam 26 is connected between the rear end beam 25 and the side beam 23, so that a structure capable of lifting the frame 20 is provided. Strength, thereby improving the structural strength of the battery tray 100.
- the battery tray 100 also includes an expansion beam 27 .
- the expansion beam 27 is provided on the side of the tray bottom plate 10 away from the frame 20 .
- the expansion beam 27 is set above the pallet bottom plate 10.
- the expansion beam 27 is installed on the support beam 26 through bolts. After the battery core 201 is installed in the placement slot 111, when the battery core 201 expands, the expansion beam 27
- the battery core 201 can be limited to improve the safety of the battery core 201.
- a plurality of support beams 26 are provided, and the plurality of support beams 26 are successively spaced apart along the length direction of the side beams 23 , and the length direction of the side beams 23 refers to the front-to-back direction in Figure 6 , there are a plurality of expansion beams 27 , and the plurality of expansion beams 27 are arranged at intervals along the length direction of the side beam 23 .
- the plurality of expansion beams 27 and the plurality of support beams 26 are arranged in one-to-one correspondence.
- One expansion beam 27 is installed on the side beam 27 by bolts.
- a support beam 26 allows the expansion beam 27 to be securely mounted to the frame 20 .
- the support portion 22 of the first side beam is disposed close to the lower end of the first side beam, and/or the support portion 22 of the second side beam is close to the lower end of the second side beam.
- the support part 22 of the first side beam is arranged close to the lower end of the first side beam
- the support part 22 of the second side beam is arranged close to the lower end of the second side beam.
- the support portion 22 is provided close to the lower end of the corresponding side beam 23 .
- the support portion 22 is provided close to the end of the corresponding side beam 23 away from the pallet bottom plate 10 , and the bottom plate body 11 is installed.
- the upper end of the placement slot 111 is open, and the battery core 201 can be removed from the placement slot 111 The open end is placed in the placement slot 111.
- the extension portion 12 extends circumferentially along the open end of the placement slot 111.
- the extension portion 12 is connected to the upper end of the base plate body 11. After the base plate body 11 is installed in the installation space 21, such an arrangement can make the extension The portion 12 is disposed outside the placement groove 111, which ensures that the extension portion 12 is disposed corresponding to the frame 20 in the up and down direction of the battery tray 100, thereby ensuring the sealing of the battery tray 100.
- the surface of the support part 22 close to the pallet bottom 10 is configured as a plane. That is to say, as shown in FIG. 11 , the upper surface of the support part 22 It is set as a plane, so that the support area of the support part 22 and the bottom plate body 11 can be ensured, and the support part 22 can better support the battery core 201 .
- the support portion 22 is located below the base body 11 and is fixedly connected to the base body 11 .
- the tray bottom 10 is bonded to the frame 20 . Further, by applying adhesive (such as structural glue) between the tray bottom plate 10 and the frame 20, the support portion 22 and the bottom plate body 11 are bonded and connected, and the thickness control of the adhesive is used to absorb the dimensional tolerance of the frame 20. At the same time, the pallet bottom plate 10 has good flatness, and the adhesive can absorb tolerances to reduce the manufacturing requirements for the pallet bottom plate 10 and the frame 20 .
- adhesive such as structural glue
- the tray bottom plate 10 is easily deformed during the welding process, which increases the size requirements for the battery cells 201 during the subsequent assembly process of the battery pack 200, affecting the assembly efficiency of the battery pack 200.
- the deformation of the tray bottom plate 10 can be prevented, and the impact on the battery cells 201 during the subsequent assembly process of the battery pack 200 is reduced.
- the size requirements improve the assembly efficiency of the battery pack 200.
- the frame 20 is constructed as a metal piece.
- the frame 20 can be made of aluminum material.
- the frame 20 can also be made of steel material.
- the frame 20 can also be made of other steel materials.
- the material is made of the same metal material.
- the frame 20 is made of steel material.
- the frame 20 can be formed by rolling of steel material.
- the frame 20 can also be formed by extrusion of steel material. Among them, by converting the edge
- the frame 20 is configured as a metal piece, which can improve the load-bearing capacity of the frame 20 .
- At least one of the first side beam and the second side beam includes a side beam body 231 connected with the corresponding support part 22
- the first side beam includes a side beam body 231 connected with the corresponding support part 22
- the second side beam includes a side beam body 231 connected to the corresponding support part 22.
- the side beam body 231 defines a cavity.
- the connecting plates 232 are connected obliquely. Between the top wall 233 of the cavity and the bottom wall 234 of the cavity, the connecting plate 232 can divide the cavity into multiple sub-cavities 235.
- the multiple sub-cavities 235 are arranged sequentially in the width direction of the side beam 23.
- the width direction of the side rails 23 refers to the left-right direction in Figure 11.
- the connecting plate 232 extends obliquely in a direction away from the installation space 21 , and the connecting plate 232 divides the cavity into two sub-cavities 235 , the two sub-cavities 235 are arranged sequentially in the width direction of the side beam 23. This arrangement can improve the structural strength of the side beam 23, improve the stability of the side beam 23, and thus improve the ability of the side beam 23 to support the battery core 201. .
- the width direction of the side rails 23 may be consistent with the width direction of the battery tray 100 or the width direction of the vehicle 2000 . In other embodiments, the width direction of the side rails 23 may be consistent with the length direction of the battery tray 100 or the vehicle 2000 .
- the plurality of subcavities 235 are arranged sequentially in the width direction of the side beam 23 .
- the subcavities 235 of the plurality of subcavities 235 that are far away from the installation space 21 of the battery tray 100 are hit, for example, the subcavities 235 located on the left side in FIG. 11
- the impacted sub-cavity 235 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 use of the battery pack 200. safety.
- the first side wall 236 of the cavity away from the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and The first side wall 236 is connected to the connecting plate 232 .
- the lower end of the first side wall 236 is connected to a first connecting portion 238 extending toward the cavity, and the first side wall 236 is connected to the cavity through the first connecting portion 238.
- the bottom wall 234 and the connecting plate 232 are connected.
- the first connecting part 238 is fixedly connected to the bottom wall 234 of the cavity.
- the first connecting part 238 is welded to the bottom wall 234 of the cavity. This arrangement can further enhance the side beams.
- the structural strength of 23 can further improve the stability of the side beam 23.
- the second side wall 237 of the cavity close to the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and The second side wall 237 is connected to the connecting plate 232 .
- the upper end of the second side wall 237 is connected to a second connecting portion 239 extending toward the cavity, and the second side wall 237 is connected to the cavity through the second connecting portion 239.
- the top wall 233 and the connecting plate 232 are connected, wherein the second connecting part 239 is fixedly connected to the top wall 233 of the cavity.
- the second connecting part 239 is welded to the top wall 233 of the cavity, and the top wall 233 of the cavity
- the bottom wall 234 of the cavity, the first side wall 236 and the second side wall 237 jointly define the cavity. This arrangement can further improve the structural strength of the side beam 23 and further improve the stability of the side beam 23.
- the lower end of the second side wall 237 is connected to the support part 22 , and the second side wall 237 is connected to the bottom wall 234 of the cavity through the support part 22 .
- one end of the bottom wall 234 of the cavity close to the installation space 21 extends below the support part 22 , and the end of the bottom wall 234 of the cavity close to the installation space 21 is close to the support part 22 The end connection of the installation space 21.
- the bottom wall 234 of the cavity is located at the structure below the support part 22 and is provided with a boss structure 2391 protruding toward the support part 22.
- the boss structure 2391 is connected to the support part 22, so that Further improving the structural strength of the side beams 23 can further improve the stability of the side beams 23 .
- the bottom wall 234 of the cavity is provided with a plurality of boss structures 2391 at the structure below the support portion 22 .
- the plurality of boss structures 2391 are sequentially arranged in the width direction of the side beam 23 . At least one of the three boss structures 2391 is located below the pressure area 112. Such an arrangement can enable the boss structures 2391 to support the battery core 201, which can further improve the load-bearing capacity of the frame 20.
- the frame 20 is connected to a lifting eye structure 30.
- the lifting eye structure 30 is provided with mounting holes, and the lifting eye structure 30 is installed through fasteners (such as bolts).
- fasteners such as bolts
- the battery tray 100 includes: a sealing structure 13 , a tray bottom plate 10 and a frame 20 .
- the tray bottom 10 includes a bottom body 11 and an extension 12.
- the bottom body 11 defines a placement slot 111 for placing the battery core 201 or the battery module.
- This application uses the placement slot 111 to place the battery core 201 as an example for illustration.
- the battery core 201 It can be bonded in the placement slot 111 through structural adhesive.
- the bottom wall 113 of the placement slot has a pressure area 112 for supporting the battery core 201.
- the pressure area 112 means that the battery core 201 is installed in the placement slot 111.
- the orthographic projection of the bottom wall 113 of the placement slot coincides with the orthographic projection of the battery core 201, or it can also be understood that when the battery core 201 is installed in the placement slot 111, the battery core 201
- the contact area with the bottom wall 113 of the placement slot includes the area in which the battery core 201 is in direct contact with the bottom wall 113 of the placement slot or the area in indirect contact. For example, when there is a gap between the battery core 201 and the bottom wall 113 of the placement slot.
- the adhesive or cooling structure is used, the battery core 201 is in indirect contact with the bottom wall 113 of the placement slot.
- the battery core 201 When there is no other object between the battery core 201 and the bottom wall 113 of the placement slot, the battery core 201 is in direct contact with the bottom wall 113 of the placement slot. , or it can also be understood that the area where the weight of the battery core 201 directly acts on the bottom wall 113 of the placement groove is the pressure area 112 .
- the orthographic projection of the bottom wall 113 of the placement groove is the projection of the bottom wall 113 of the placement groove in a plane perpendicular to the height direction of the battery tray 100 .
- the orthographic projection of the battery core 201 In 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 battery core 201 When the battery core 201 is installed in the battery tray 100, the battery core 201 is located in the pressure area 112 of the placement groove 111, and the extension portion 12 extends along the circumferential edge of the base plate body 11. Further, the extension portion 12 is configured as a ring structure. , specifically, the extension part 12 is configured as a closed-loop structure, and further, the extension part 12 is provided with an escape through hole 122 for fasteners (such as bolts or screws) to pass through.
- fasteners such as bolts or screws
- the frame 20 defines an installation space 21.
- the bottom plate body 11 is installed in the installation space 21.
- the extension part 12 is located outside the installation space 21 and is provided with the frame 20. Further, the extension part 12 is provided with the frame 20 through fasteners.
- this application takes the battery tray 100 placed in the up and down direction as an example.
- the extension 12 is provided outside the installation space 21, and the battery In the up and down direction of the tray 100, the extension part 12 is arranged corresponding to the frame 20.
- the extension portion 12 can cover the entire upper surface of the frame 20 .
- the sealing structure 13 is used to seal the escape through hole 122 .
- the frame 20 is provided with a plurality of bolt holes 28 , and the plurality of bolt holes 28 are arranged in one-to-one correspondence with the plurality of avoidance through holes 122 .
- a plurality of blind rivet nuts are embedded in the frame 20 , and the plurality of blind rivets are embedded in the frame 20 .
- the nuts are arranged in one-to-one correspondence with the plurality of bolt holes 28 , and the blind rivet nuts pass through the avoidance through holes 122 and the bolt holes 28 .
- the battery pack 200 includes a cover 40 .
- the cover 40 and the tray bottom 10 jointly define a placement cavity 41 for placing the battery core 201 , and the cover 40 is connected to the frame 20 .
- the cover 40 covers the open end of the placement groove 111 to define the placement cavity 41.
- the extension 12 is sandwiched between the cover 40 and the frame 20.
- Bolts are used to pass through the cover 40 and the extension 12 to avoid
- the through holes 122 and the bolt holes 28 of the frame 20 are connected with rivet nuts, thereby assembling the cover 40 , the tray bottom plate 10 and the frame 20 together.
- the bolt passes through the avoidance through hole 122 and the sealing structure 13 seals the avoidance through hole 122, which can improve the sealing performance of the battery tray 100 and prevent liquid from flowing into the placement slot 111 from the avoidance through hole 122, thereby preventing the battery pack 200 from short-circuiting, thus improving the battery quality.
- the package 200 is safe to use, and the tray bottom plate 10 separates the battery core 201 and the frame 20. Even if the frame 20 is not sealed, it can ensure that the liquid will not flow into the placement groove 111, which reduces the sealing requirements of the frame 20 and reduces the frame 20 The manufacturing difficulty improves the production efficiency of the frame 20.
- the tray bottom plate 10 is constructed as a one-piece molded piece. This arrangement can ensure the sealing of the tray bottom plate 10 and prevent liquid from flowing into the placement groove 111 from the tray bottom plate 10 , thus further improving the safety of the battery pack 200 . sex.
- the sealing structure 13 is provided between the extension part 12 and the frame 20 , and the sealing structure 13 is provided corresponding to the avoidance through hole 122 , wherein the sealing structure 13 can pass through the cover 40 and the extension part.
- the escape through hole 122 of 12 and the bolt hole 28 of the frame 20 contact and block the escape through hole 122, thereby sealing the escape through hole 122.
- the sealing structure 13 is disposed in the escape through hole 122 to seal the escape through hole 122 .
- the sealing structure 13 When the sealing structure 13 is disposed in the escape through hole 122, the sealing structure 13 is sandwiched between the escape through hole 122 and the fastener to seal the gap between the escape through hole 122 and the fastener, thereby achieving the effect of sealing the escape through hole 122.
- the sealing structure 13 is provided between the extension part 12 and the frame 20 and in the avoidance through hole 122 .
- the extension 12 and the frame 20 are sealingly connected through a sealing structure 13.
- the sealing structure 13 is configured as sealant, and the sealing structure 13 can also be configured as a rubber piece, but The application is not limited to this, and the sealing structure 13 may also be configured as a sealing member that plays the same role as the sealant.
- the sealing structure 13 can be sandwiched in the entire space between the pallet bottom plate 10 and the frame 20, the sealing structure 13 can be sandwiched in part of the space between the extension 12 and the frame 20, and the sealing structure 13 can surround the bolt holes 28 and avoid.
- the through hole 122 is provided. Further, the sealing structure 13 can extend into the bolt hole 28 and the avoidance through hole 122. This arrangement can achieve a sealed connection between the extension 12 and the frame 20, and can effectively prevent liquid from flowing out of the bolt hole on the frame 20. 28 flows into the placement cavity 41.
- sealing structures 13 there are a plurality of sealing structures 13 , and the plurality of sealing structures 13 are arranged at intervals in sequence. It can also be understood that on the bottom plate 10 of the tray, Between the tray bottom plate 10 and the frame 20 , a plurality of sealing structures 13 are spaced apart in sequence. By having multiple sealing structures 13 simultaneously disposed between the tray bottom plate 10 and the frame 20 , the sealing performance of the battery tray 100 can be further improved, and liquid can be further prevented from leaking from the frame 20 The bolt holes 28 on the battery pack 200 flow into the placement cavity 41, which can further prevent the battery pack 200 from short-circuiting, thereby further improving the safety of the battery pack 200.
- the frame 20 has a support portion 22 extending toward the installation space 21.
- the support portion 22 is used to support the base plate body 11. Further, the support portion 22 is used to The pressure-bearing area 112 is supported, and a sealing structure 13 is provided between the support part 22 and the bottom plate body 11. This arrangement can seal the gap between the support part 22 and the bottom plate body 11, and prevent liquid from flowing between the support part 22 and the bottom plate body 11. The gap enters between the pallet bottom plate 10 and the frame 20.
- the battery core 201 when the battery core 201 is installed in the placement slot 111 , the battery core 201 is located in the pressure area 112 , and the pressure area 112 is supported by the support part 22 , and the weight of the battery core 201 is carried on the frame 20 , the frame 20 carries most of the weight of the battery core 201, and the tray bottom plate 10 carries a small part of the weight of the battery core 201, which greatly reduces the load-bearing requirements of the tray bottom plate 10.
- the tray bottom plate 10 can be made of materials with lower strength and thinner thickness. Further, the pallet bottom plate 10 is set as a non-metallic part. Further, the pallet bottom plate 10 is set as an insulating part.
- the pallet bottom plate 10 made of lightweight non-metallic composite material can be used.
- the lightweight non-metallic composite material can be used. It is made of resin and glass fiber.
- the resin can be epoxy resin or polyurethane, but the application is not limited thereto.
- the lightweight non-metallic composite material can also be made of other composite materials that play the same role as resin and glass fiber. In this way, such an arrangement can reduce the weight of the tray bottom plate 10, which is beneficial to the lightweight design of the battery tray 100 and the battery pack 200, and can also ensure the integrity of the battery pack 200 when the battery core 201 is thermally runaway or externally burned.
- the existing tray bottom plate 10 is made of aluminum material.
- the production cost of the tray bottom plate 10 can be reduced, which is beneficial to reducing the production cost of the battery tray 100 and the battery pack 200.
- the pallet bottom plate 10 made of non-metallic composite materials has excellent electrical insulation properties. When the vehicle 2000 is severely grounded, the battery pack 200 will not be exposed to high-voltage risks such as arcing.
- the pallet bottom plate 10 is molded from a lightweight non-metallic composite material. During the molding process, the pallet bottom plate 10 forms a good airtightness due to the melted flow and solidification of the resin. At the same time, the mold molding can ensure that the pallet bottom plate 10 has good airtightness. The flatness and dimensional accuracy ensure the sealing function of the pallet bottom plate 10.
- the frame 20 can be formed by metal tailor welding. After welding, only the strength of the welding structure and the necessary product flatness need to be ensured. The tailor welding efficiency is high, which improves the production efficiency of the battery tray 100.
- the bottom plate 10 of the tray is responsible for sealing and does not require welding. Grinding and air tightness testing, there is no risk of sealing failure caused by welding.
- the pallet bottom plate 10 can be molded using composite materials. The pallet bottom plate 10 has high production efficiency and high mold precision, thereby achieving higher flatness and reducing the size requirements of the battery core 201 .
- the existing battery tray 100 does not distinguish the two functions of load-bearing and sealing in the product structure.
- the frame 20 is mainly responsible for load-bearing
- the tray bottom plate 10 is mainly responsible for sealing the battery tray 100 , which improves the manufacturing efficiency and low yield rate of the battery tray 100 .
- the frame 20 carries most of the weight of the battery core 201, and the tray bottom plate 10 carries a small part of the weight of the battery core 201.
- the tray bottom plate 10 is mainly responsible for the sealing function and is made of lightweight composite materials.
- the completed pallet bottom plate 10 is sufficient, which is beneficial to the lightweight design and cost reduction of the battery tray 100 and the battery pack 200.
- the frame 20 includes side beams 23 , a front beam 24 and a rear beam 25 , and the side beams 23 , the front beam 24 and the rear beam 25 are connected to each other.
- the installation space 21 is formed.
- the connection between the side beam 23, the front beam 24 and the rear beam 25 includes direct connection and indirect connection.
- the side beam 23 and the front beam are connected.
- 24 can be connected directly, and the side beams 23 and the front end beam 24 can also be connected indirectly through other beams.
- the side beams 23 and/or the front end beam 24 and/or the rear end beam 25 have support portions 22 , that is to say, at least one of the side beams 23 , the front end beam 24 and the rear end beam 25 has the support portion 22 .
- the side beam 23 is provided with the support portion 22 as an example for description.
- the number of side beams 23 can be set to two, and the number of rear end beam 25 and front end beam 24 can both be set to one.
- the two side beams 23 are In Figure 8, they are spaced apart in the left and right directions.
- the front end beam 24 and the rear end beam 25 are both connected between the two side beams 23.
- the front end beam 24 and the rear end beam 25 are spaced apart in the front and rear directions of the frame 20, so that The front end beam 24 , the rear end beam 25 and the two side beams 23 jointly define an installation space 21 .
- the battery cores 201 are extended and placed along the left-right direction in FIG. 8 , by arranging the support parts 22 on the side beams 23 , it can be ensured that each battery core 201 is supported by the support parts 22 , and it can further ensure that the support parts 22 are aligned with each other. Supporting the battery core 201 can further ensure that the frame 20 is mainly used to carry the weight of the battery core 201, so that the support portion 22 can be set in a reasonable position.
- the width direction of the battery tray 100 may be consistent with the vehicle width direction, and the length direction of the battery tray 100 may be consistent with the vehicle length direction.
- the width direction of the battery tray 100 can also be consistent with the vehicle length direction, and the length direction of the battery tray 100 can be consistent with the vehicle width direction.
- the support portion 22 is disposed close to the lower end of the side beam 23. It can also be understood that the support portion 22 is disposed close to the end of the side beam 23 away from the pallet bottom 10, After the base plate body 11 is installed in the installation space 21 , by disposing the support portion 22 close to the end of the side beam 23 away from the pallet bottom plate 10 , it can be ensured that the support portion 22 is supported below the base plate body 11 , and it can also ensure that the base plate body 11 can Installed in the installation space 21.
- the sealing structure 13 is constructed as a plate-like structure. Such an arrangement can improve the surface flatness of the sealing structure 13 and enable the sealing structure 13 to closely fit the tray bottom plate 10 and the sealing structure 13 to the frame 20. This ensures the sealing between the tray bottom 10 and the frame 20 .
- the surface of the extension part 12 facing the frame 20 is provided with a first rib 121, and the surface of the extension part 12 facing the frame 20 is in contact with the first rib.
- the rib 121 defines a first glue-containing area.
- the first rib 121 and the extension part 12 are integrally formed, or the first rib 121 and the extension part 12 are constructed as separate parts, for example: the first rib 121 and the extension part are
- the first rib 121 and the tray bottom plate 10 are integrally formed by hot pressing using the same material. This arrangement can avoid additional parts, reduce costs, and improve the assembly efficiency of the battery pack 200 .
- the sealing structure 13 is made of structural glue
- the structural glue is first applied to the surface of the frame 20, and then the bottom plate body 11 of the pallet bottom plate 10 is installed in the installation space 21, and the extension part 12
- the first convex rib 121 first contacts the structural glue and squeezes the structural glue, so that the structural glue flows into the first glue-containing area.
- the structural glue is squeezed by the first convex rib 121 so that the structural glue can be evenly disposed on the extension part 12 and the frame 20 In this way, the thickness of each area of the sealing structure 13 can be made more uniform, and the avoidance through hole 122 can be better sealed.
- a plurality of escape through holes 122 are spaced apart in the circumferential direction of the extension 12 . Further, the plurality of escape through holes 122 extend The extending directions of the portions 12 are spaced apart in sequence, and first ribs 121 are provided between at least two adjacent escape through holes 122 among the plurality of escape through holes 122. For example, first ribs 121 are provided between any two adjacent escape through holes 122. There are first convex ribs 121. Furthermore, at least one first convex rib 121 is provided between two adjacent avoidance through holes 122.
- the structural adhesive By squeezing the structural adhesive simultaneously through multiple first convex ribs 121, the structural adhesive can be arranged more evenly. Between the extension part 12 and the frame 20, the thickness of each area of the sealing structure 13 can be made more uniform. After the battery core 201 is installed in the placement slot 111, the stable placement of the battery core 201 can be better ensured.
- the surface of the extension part 12 facing the frame 20 is provided with a boss protruding toward the direction of the frame 20.
- the surface of the extension part 12 facing the frame 20 and the boss define a first glue-containing area.
- the boss and the extension part 12 are integrally formed, or the boss and the extension part 12 are constructed as separate parts.
- the boss and the extension part 12 are integrally formed, and the boss and the tray bottom plate 10 are integrally formed by hot pressing of the same material.
- the platform is arranged around the escape through holes 122. Further, there are multiple bosses, and the multiple bosses are arranged in one-to-one correspondence with the multiple escape through holes 122.
- the sealing structure 13 is structural glue
- the frame 20 and the tray bottom plate 10 are assembled.
- the structural glue is first applied to the surface of the frame 20, and then the bottom plate body 11 of the pallet bottom plate 10 is installed in the installation space 21.
- the boss of the extension part 12 first contacts the structural glue and squeezes the structural glue, so that the structural glue flows into the third part.
- the structural glue is extruded through the boss, so that the structural glue can be evenly placed between the extension 12 and the frame 20, which can make the thickness of each area of the sealing structure 13 more uniform, and the battery core 201 is installed in the placement slot 111 Finally, the battery core 201 can be ensured to be placed stably.
- the height of the first rib 121 protruding from the surface of the extension part 12 and the height of the boss protruding from the surface of the extension part 12 are both H1, satisfying the relationship: 0.5mm ⁇ H1 ⁇ 1.5mm, extending After the structural glue is extruded from the part 12, this arrangement can ensure that the thickness of the sealing structure 13 is appropriate.
- the surface of the bottom plate body 11 facing the support portion 22 is provided with second ribs 114 corresponding to the support portion 22, and the surface of the bottom plate body 11 facing the support portion
- the surface of the portion 12 and the second convex rib 114 define a second glue-containing area.
- the sealing structure 13 is made of structural glue
- the structural glue is applied to the surface of the support portion 22 opposite to the bottom plate body 11. Then, the bottom plate body 11 is installed in the installation space 21.
- the second convex ribs 114 first contact the structural glue and squeeze the structural glue, so that the structural glue flows into the second glue-containing area.
- the structural glue is squeezed through the second convex ribs 114, so that the structural glue can be squeezed.
- the structural glue is evenly arranged between the support part 22 and the base plate body 11, which can make the thickness of each area of the sealing structure 13 more uniform. After the battery core 201 is installed in the placement slot 111, it can ensure that the battery core 201 is placed stably.
- the second rib 114 is close to the installation space.
- the end of the space 21 extends from the supporting part 22 .
- the left end of the second rib 114 extends out of the left end of the support part 22 . Due to the side The beam 23 is the main load-bearing member, and it is necessary to strictly ensure that the thickness of the glue layer in the entire sealing structure 13 area is consistent and stable. Therefore, by extending the support portion 22 from the end of the second rib 114 close to the installation space 21, the glue layer in the entire sealing structure 13 area can be ensured. The layer thickness is consistent and stable.
- the orthogonal projection of the support portion 22 and the orthogonal projection of the pressure area 112 has an overlapping area.
- this arrangement can ensure that the support portion 22 supports the battery core 201 and ensure that the frame 20 is mainly used to bear the weight of the battery core 201.
- the bottom wall 113 of the placement groove is formed with a pressure area 112. It can also be understood that the pressure area 112 is provided on the bottom wall 113 of the placement groove.
- the support part 22 when the battery tray 100 When placed in the placement manner shown in Figure 11, the support part 22 is located below the bottom plate body 11, and the support part 22 is supported on the bottom wall 113 of the placement slot. This arrangement can ensure that the support part 22 is supported below the pressure area 112, which can further ensure The supporting part 22 supports the battery core 201, which can further ensure that the frame 20 is mainly used to bear the weight of the battery core 201, so that the pressure-bearing area 112 can be set in a reasonable position.
- the frame 20 also includes a support beam 26, which is connected between the two side beams 23, or the support beam 26 is connected between the front end beam 24 and the rear end beam. 25, or the support beam 26 is connected between the front end beam 24 and the side beam 23, or the support beam 26 is connected between the rear end beam 25 and the side beam 23.
- This arrangement can improve the structural strength of the frame 20, thereby The structural strength of the battery tray 100 can be improved.
- the battery tray 100 also includes an expansion beam 27 .
- the expansion beam 27 is provided on the side of the tray bottom plate 10 away from the frame 20 .
- the expansion beam 27 is set above the pallet bottom plate 10.
- the expansion beam 27 is installed on the support beam 26 through bolts. After the battery core 201 is installed in the placement slot 111, when the battery core 201 expands, the expansion beam 27 can Limit the position of the battery core 201 to improve the safety of the battery core 201.
- a plurality of support beams 26 are provided, and the plurality of support beams 26 are spaced apart in sequence along the length direction of the side beams 23 .
- the length direction of the side beams 23 refers to the front and rear direction in FIG. 6 , and there are multiple expansion beams 27 .
- a plurality of expansion beams 27 are arranged at intervals along the length direction of the side beams 23.
- a plurality of expansion beams 27 and a plurality of support beams 26 are arranged in one-to-one correspondence.
- One expansion beam 27 is installed on one support beam 26 through bolts, so that The expansion beam 27 can be firmly installed on the frame 20 .
- the upper end of the placement slot 111 is open, and the battery core 201 passes through the placement slot 111
- the open end of the electric core 201 is put into the placement slot 111, thereby achieving the technical effect of placing the battery core 201 into the placement slot 111.
- the extension part 12 extends along the open end of the placement slot 111. As shown in FIG. 11, the extension part 12 is connected to the upper end of the base plate body 11.
- the surface of the support part 22 close to the pallet bottom 10 is configured as a plane. That is to say, as shown in FIG. 11 , the upper surface of the support part 22 It is set as a plane, so that the support area of the support part 22 and the bottom plate body 11 can be ensured, and the support part 22 can better support the battery core 201 .
- the tray bottom 10 is bonded to the frame 20 . Furthermore, the pallet bottom plate 10 and the frame 20 are bonded and connected by applying adhesive (such as structural glue) between the pallet bottom plate 10 and the frame 20, and the thickness control of the adhesive is used to absorb the dimensional tolerance of the frame 20, and at the same time
- the pallet bottom plate 10 has good flatness, and the adhesive can absorb tolerances to reduce manufacturing requirements for the pallet bottom plate 10 and the frame 20 .
- the tray bottom plate 10 is easily deformed during the welding process, which increases the size requirements for the battery cells 201 during the subsequent assembly process of the battery pack 200, affecting the assembly efficiency of the battery pack 200.
- the tray bottom plate 10 and the frame 20 by adhesively connecting the tray bottom plate 10 and the frame 20 to avoid the welding connection between the tray bottom plate 10 and the frame 20, the deformation of the tray bottom plate 10 can be prevented, and the impact on the battery cells 201 during the subsequent assembly process of the battery pack 200 is reduced.
- the size requirements improve the assembly efficiency of the battery pack 200.
- the pallet bottom plate 10 is constructed as a one-piece molded part, and the pallet bottom plate 10 is molded using lightweight composite materials. During the molding process, the pallet bottom plate 10 forms good airtightness after the resin melts, flows, and solidifies. At the same time, mold molding can ensure that the pallet bottom plate 10 has good flatness and dimensional accuracy, and ensures the sealing function of the pallet bottom plate 10 .
- the frame 20 is constructed as a metal piece.
- the frame 20 can be made of aluminum material.
- the frame 20 can also be made of steel material.
- the frame 20 can also be made of other steel materials.
- the material plays the same metal material, for example: the frame 20 is made of steel material, and the frame 20 can be formed by rolling of steel material, or the frame 20 can also be formed by extrusion of steel material.
- the frame 20 made of steel material can withstand high temperatures above 1500°C, ensuring the integrity of the frame 20 when the battery core 201 thermally runs away.
- the side beam 23 includes a side beam body 231.
- the side beam body 231 defines a cavity.
- the connecting plate 232 is connected obliquely to the cavity.
- the connecting plate 232 can divide the cavity into multiple sub-cavities 235.
- the multiple sub-cavities 235 are arranged sequentially in the width direction of the side beam 23.
- the connecting plate 232 extends obliquely in a direction away from the installation space 21 .
- the connecting plate 232 divides the cavity into two sub-cavities 235 .
- the two sub-cavities 235 are in The width direction of the side beams 23 is arranged in sequence. This arrangement can improve the structural strength of the side beams 23 and improve the stability of the side beams 23, thereby improving the ability of the side beams 23 to support the battery cells 201 and further reducing the frame. 20 Risk of deformation.
- the plurality of subcavities 235 are arranged sequentially in the width direction of the side beam 23 .
- the subcavities 235 of the plurality of subcavities 235 that are far away from the installation space 21 of the battery tray 100 are hit, for example, the subcavities 235 located on the left side in FIG. 11
- the impacted sub-cavity 25 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 cells 201 in the battery pack 200 being damaged, thereby improving the use of the battery pack 200. safety.
- the first side wall 236 of the cavity away from the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and the first side wall 236 and Connection plate 232 connects.
- the lower end of the first side wall 236 has a first connecting portion 238 extending toward the cavity.
- the first connecting portion 238 is connected to both the bottom wall 234 and the connecting plate 232 of the cavity.
- the portion 238 is welded to the bottom wall 234 of the cavity. This arrangement can further enhance the structural strength of the side beam 23 and further improve the stability of the side beam 23 .
- the second side wall 237 of the cavity close to the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and the second side wall 237 and Connection plate 232 connects.
- the upper end of the second side wall 237 has a second connecting portion 239 extending toward the cavity, and the second connecting portion 239 is connected to both the top wall 233 and the connecting plate 232 of the cavity.
- the second connecting part 239 is welded to the top wall 233 of the cavity.
- the top wall 233 of the cavity, the bottom wall 234 of the cavity, the first side wall 236 and the second side wall 237 jointly define the cavity. This arrangement can further Improving the structural strength of the side beam 23 can further improve the stability of the side beam 23 .
- the lower end of the second side wall 237 is connected to the support part 22
- the support part 22 is connected to the bottom wall 234 of the cavity.
- one end of the bottom wall 234 of the cavity close to the installation space 21 extends to below the support part 22
- the end of the bottom wall 234 of the cavity close to the installation space 21 is installed close to the support part 22
- the ends of the space 21 are connected.
- the bottom wall 234 of the cavity is located at the structure below the support part 22 and is provided with a boss structure 2391 protruding toward the support part 22.
- the boss structure 2391 is connected to the support part 22.
- the bottom wall 234 of the cavity is provided with a plurality of boss structures 2391 at the structure below the support portion 22 .
- the plurality of boss structures 2391 are sequentially arranged in the width direction of the side beam 23 .
- At least one boss structure 2391 is located below the pressure area 112. This arrangement enables the boss structure 2391 to support the battery core 201, which can further improve the load-bearing capacity of the frame 20 and reduce the risk of deformation of the support portion 22.
- the battery pack 200 includes a battery core 201 , a battery tray 100 and a cover 40 .
- the battery tray 100 includes a tray bottom plate 10 and a frame 20 .
- the frame 20 defines an installation space 21, and the tray bottom plate 10 is installed in the installation space 21.
- the cover 40 and the tray bottom 10 are sealed and jointly define a placement cavity 41 for placing the battery core 201 . Further, the cover 40 is connected to the frame 20 .
- the cover 40 and the tray bottom 10 can be sealed by sealant.
- the cover 40 and the tray bottom 10 can also be sealed by a sealing gasket.
- the gap between the cover 40 and the tray bottom 10 The sealing method is not specifically limited, as long as the cover 40 and the tray bottom 10 can be sealed.
- the cover 40 and the tray bottom plate 10 are sealedly connected, they can jointly define a sealed placement cavity 41.
- the tray bottom plate 10 can separate the battery core 201 from the frame 20.
- the core 201 is in a completely sealed and insulated placement cavity 41.
- the battery core 201 is sealed in the placement cavity 41.
- the battery pack 200 has no risk of leakage, which improves the safety of the battery pack 200.
- the welding gap of the frame 20 has no impact on the sealing of the battery pack 200, and there is no need to perform air tightness testing of the battery tray 100, which improves the production efficiency of the battery tray 100.
- the battery pack 200 includes: a seal 203, which is provided between the tray bottom plate 10 and the cover 40 to achieve a sealed connection between the cover 40 and the tray bottom plate 10, so that the placement cavity can be sealed. 41 seal.
- the tray bottom plate 10 can be configured as a non-metallic part.
- the tray bottom plate 10 can be configured as an insulating part.
- the tray bottom plate 10 has an insulating and sealing effect. The battery pack 200 is reliably installed through the tray bottom plate 10, the cover 40 and the seal 203. seal,
- the tray bottom plate 10 can separate the battery core 201 from the frame 20, and the battery core 201 is sealed in the placement cavity.
- the battery pack 200 has no risk of leakage, which improves the safety of the battery pack 200.
- the welding gap of the frame 20 has no impact on the sealing of the battery pack 200. There is no need to perform air tightness testing of the battery tray 100, which improves the battery tray. 100 production efficiency.
- the tray bottom plate 10 includes a bottom plate body 11, and the bottom plate body 11 defines a placement slot 111 for placing the battery core 201 or battery module.
- the application takes the placement slot 111 to place the battery core 201 as an example.
- the cover 40 covers the open end of the placement slot 111 to define a placement cavity 41 for placing the battery core 201. This arrangement can realize the placement of the placement cavity 41.
- the pallet bottom plate 10 further includes an extension portion 12, which extends along the circumferential edge of the bottom plate body 11.
- the extension portion 12 is configured as a ring structure, specifically, the extension portion 12 is configured as a closed loop structure,
- a seal 203 is provided between the extension part 12 and the cover 40 .
- the cover 40 has a second assembly flange 42 extending along the circumferential edge of the cover 40 , and a seal 203 is provided between the extension part 12 and the second assembly flange 42 .
- the extension 12 is sandwiched between the second assembly flange 42 of the cover 40 and the frame 20 , and bolts are used to pass through the second assembly flange 42 , the seal 203 , the extension 12 and the frame 20 to secure the cover 40 ,
- the seal 203, the tray bottom plate 10 and the frame 20 are assembled together.
- the seal 203 can seal the placement cavity 41. After the battery core 201 is placed in the placement cavity 41, the battery core 201 can be completely isolated from the frame 20.
- the battery core 201 Being in a completely insulated environment ensures that the battery pack 200 has no risk of leakage.
- the cover 40 can also be configured as a flat plate structure, with a seal 203 provided between the edge of the cover 40 and the extension 12 to achieve a sealed connection between the cover 40 and the tray bottom 10 .
- This application uses the cover as the 40 is provided with a second assembly flange 42 as an example for explanation.
- the bottom wall 113 of the placement slot has a pressure-bearing area 112 for supporting the battery core 201.
- the pressure-bearing area 112 refers to the bottom wall 113 of the placement slot in the height direction of the battery tray 100 when the battery core 201 is installed in the placement slot 111.
- the area where the orthographic projection coincides with the orthographic projection of the battery core 201 can also be understood as the contact area between the battery core 201 and the bottom wall 113 of the placement slot when the battery core 201 is installed in the placement slot 111 .
- the contact area includes the battery core 201
- the area in direct contact with the bottom wall 113 of the placement slot or the area in indirect contact for example: when there is adhesive or cooling structure between the battery core 201 and the bottom wall 113 of the placement slot, it belongs to the area between the battery core 201 and the bottom wall of the placement slot.
- 113 indirect contact when there is no other object between the battery core 201 and the bottom wall 113 of the placement slot, the battery core 201 is in direct contact with the bottom wall 113 of the placement slot, or it can also be understood that the weight of the battery core 201 directly acts on the bottom plate body 11
- the area of the bottom wall is the pressure area 112.
- the orthographic projection of the bottom wall 113 of the placement groove is the projection of the bottom wall 113 of the placement groove 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 battery core 201 When the battery core 201 is installed in the battery tray 100 , the battery core 201 is located in the pressure-bearing area 112 of the placement slot 111 , the bottom plate body 11 is installed in the installation space 21 , and the extension portion 12 is located outside the installation space 21 and is provided on the frame 20 . Further, as shown in FIG. 3 , in the height direction of the battery pack 200 , when the battery pack is placed in the direction in FIG. 3 , the height direction of the battery pack 200 refers to the up and down direction in FIG. 3 , and the extension part 12 and the cover 40 are both is located above the frame 20, and the extension part 12 and the cover 40 are arranged correspondingly.
- extension part 12 and the second assembly flange 42 are both located above the frame 20, and the extension part 12 and the second assembly flange 42 are correspondingly located ( For example, facing each other), after the base plate body 11 is installed in the installation space 21, the extension part 12 is arranged outside the installation space 21.
- the extension part 12 is arranged corresponding to the frame 20.
- the extension part 12 is located above the frame 20 , and is disposed directly opposite the frame 20 .
- the extension part 12 can cover the entire upper surface of the frame 20 .
- the battery pack 200 may also include: a pressure plate 202. Further, the pressure plate 202 is connected to the frame 20 through fasteners, the extension 12, the seal 203 and The cover 40 is sandwiched between the pressure plate 202 and the frame 20 . Further, the extension part 12 , the seal 203 and the second assembly flange 42 are sandwiched between the pressure plate 202 and the frame 20 .
- the fasteners may be bolts or screws. For example, the fasteners may be bolts, and rivet nuts are provided in the frame 20 . The bolts are used to pass through the pressure plate 202 , the second assembly flange 42 , the seal 203 , and the extension.
- the pressure plate 202 can make the entire seal 203 evenly pressurized, ensuring that the placement cavity 41 is sealed reliably.
- the extension part 12 , the seal 203 , the second assembly flange 42 and the pressure plate 202 are all configured as an annular structure. Further, the extension part 12 , the seal 203 , the second assembly flange 42 The pressure plate 202 and the pressure plate 202 are all constructed as a closed-loop structure.
- the extension 12, the seal 203, the second assembly flange 42 and the pressure plate 202 are all constructed as The closed-loop structure can seal the placement cavity 41 in the circumferential direction of the placement cavity 41 to ensure the sealing performance of the placement cavity 41, thereby making the structure of the extension 12, the seal 203, the second assembly flange 42 and the pressure plate 202 reasonable.
- the extension 12, the seal 203, the cover 40, the pressure plate 202 and the frame 20 are all provided with fasteners that cooperate with each other.
- Assembly holes 50, further, the extension part 12, the seal 203, the second assembly flange 42, the pressure plate 202 and the frame 20 are all provided with assembly holes 50 that cooperate with fasteners.
- the assembly hole 50 of the pressure plate 202 , the assembly hole 50 of the second assembly flange 42 , the assembly hole 50 of the seal 203 , the assembly hole 50 of the extension 12 , and the assembly hole 50 of the frame 20 are arranged correspondingly, and the fastener passes through the pressure plate 202
- the assembly holes 50, the assembly holes 50 of the second assembly flange 42, the assembly holes 50 of the seal 203, the assembly holes 50 of the extension 12, and the assembly holes 50 of the frame 20 are connected to the blind rivet nut.
- the sealing member 203 is configured as a sealing ring, and the sealing ring has good sealing performance. This arrangement can ensure the sealing performance of the sealing member 203 and can better seal the extension part 12 and the second assembly flange 42 gap between them, thereby improving the sealing performance of the placement cavity 41.
- the frame 20 has a support portion 22 extending toward the installation space 21 , and the support portion 22 is used to support the pressure area 112 of the pallet bottom 10 .
- this application takes the battery tray 100 placed in the up and down direction as an example.
- the support portion 22 supports the pressure area 112.
- the weight of the battery core 201 is carried on the frame 20.
- the frame 20 carries most of the weight of the battery core 201.
- the tray bottom plate 10 does not bear the weight of the battery core 201 or only carries the weight of the battery core 201.
- the small weight of the battery core 201 greatly reduces the load-bearing requirements of the pallet bottom plate 10 and can reduce the thickness of the pallet bottom plate 10.
- the pallet bottom plate 10 can be made of materials with lower strength and thinner thickness. Further, the pallet bottom plate 10 is set to Non-metal parts, further, the pallet bottom plate 10 is set as an insulating part, and the pallet bottom plate 10 made of lightweight non-metallic composite materials can be used.
- the lightweight non-metallic composite material can be made of resin and glass fiber.
- the resin can be epoxy resin or polyurethane, but the application is not limited thereto.
- the lightweight non-metallic composite material can also be made of other composite materials that play the same role as resin and glass fiber. Such an arrangement can reduce the size of the pallet.
- the weight of the bottom plate 10 is conducive to the lightweight design of the battery tray 100 and the battery pack 200.
- the existing tray bottom plate 10 is made of aluminum material. This application can reduce the weight of the pallet bottom plate 10 by using non-metallic composite materials to make the tray bottom plate 10.
- the production cost is beneficial to reducing the production cost of the battery tray 100 and the battery pack 200 .
- the pallet bottom plate 10 made of non-metallic composite materials has excellent electrical insulation properties. When the vehicle 2000 is severely grounded, the battery pack 200 will not be exposed to high-voltage risks such as arcing. It can be understood that when the battery tray 100 is installed on the vehicle 2000, the height of the battery tray 100 may be consistent with the height direction of the vehicle 2000.
- the pallet bottom plate 10 is constructed as an integral molded part.
- the pallet bottom plate 10 is molded using lightweight non-metallic composite materials. During the molding process, the pallet bottom plate 10 forms a good airtightness after the resin melts and flows and solidifies. At the same time, it is molded through the mold part. Molding can ensure that the pallet bottom plate 10 has good flatness and dimensional accuracy, and ensures the sealing function of the pallet bottom plate 10 .
- the frame 20 can be formed by metal tailor welding. After welding, only the strength of the welding structure and the necessary product flatness need to be ensured. The tailor welding efficiency is high, which improves the production efficiency of the battery tray 100.
- the bottom plate 10 of the tray is responsible for sealing and does not require welding.
- the pallet bottom plate 10 can be molded using composite materials.
- the pallet bottom plate 10 has high production efficiency and high mold precision, thereby achieving higher flatness and reducing the size requirements of the battery core 201 .
- the existing battery tray 100 does not distinguish the two functions of load-bearing and sealing in the product structure.
- the frame 20 is mainly responsible for load-bearing
- the tray bottom plate 10 is mainly responsible for sealing the battery tray 100 , which improves the manufacturing efficiency and low yield rate of the battery tray 100 .
- the frame 20 carries most of the weight of the battery core 201, and the tray bottom plate 10 carries a small part of the weight of the battery core 201.
- the tray bottom plate 10 mainly plays a sealing role, which can reduce the thickness of the tray bottom plate 10.
- the tray bottom plate 10 made of lightweight composite materials can be used, which is beneficial to the lightweight design and cost reduction of the battery tray 100 and the battery pack 200, and the tray After the base plate 10 and the frame 20 are assembled together, there is no risk of welding causing the sealing failure of the battery tray 100 , and there is no need to polish the weld seams and test the air tightness of the battery tray 100 , which improves the production efficiency of the battery tray 100 .
- the orthogonal projection of the support portion 22 and the orthogonal projection of the pressure area 112 has an overlapping area.
- this arrangement can ensure that the support portion 22 supports the battery core 201 and ensure that the frame 20 is mainly used to bear the weight of the battery core 201.
- the bottom wall 113 of the placement groove is formed with a pressure area 112. It can also be understood that the pressure area 112 is provided on the bottom wall 113 of the placement groove.
- the support part 22 when the battery tray 100 When placed in the placement manner shown in Figure 11, the support part 22 is located below the bottom plate body 11, and the support part 22 is supported on the bottom wall 113 of the placement slot. This arrangement can ensure that the support part 22 is supported below the pressure area 112, which can further ensure The supporting part 22 supports the battery core 201, which can further ensure that the frame 20 is mainly used to bear the weight of the battery core 201, so that the pressure-bearing area 112 can be set in a reasonable position.
- the frame 20 includes side beams 23 , a front beam 24 and a rear beam 25 , and the side beams 23 , the front beam 24 and the rear beam 25 are connected to each other.
- the installation space 21 is formed.
- the connection between the side beam 23, the front beam 24 and the rear beam 25 includes direct connection and indirect connection.
- the side beam 23 and the front beam are connected.
- 24 can be connected directly, and the side beams 23 and the front end beam 24 can also be connected indirectly through other beams.
- the side rails 23 have support portions 22 .
- two side beams 23 are provided, and one rear end beam 25 and one front end beam 24 are provided.
- the two side beams 23 are spaced apart in the left and right directions in Figure 8.
- the front end beam 24 and the rear end beam 25 are both connected between the two side beams 23.
- the front end beam 24 and the rear end beam 25 are spaced apart in the front and rear directions of the frame 20, so that the front end beam 24 and the rear end beam 25 Together with the two side beams 23, the installation space 21 is defined.
- the battery cores 201 are extended and placed along the left-right direction in FIG.
- the support portions 22 by disposing the support portions 22 on the side beams 23 , it can be ensured that each battery core 201 is supported by the support portions 22 , and it can further ensure that the support portions 22 are aligned with each other. Supporting the battery core 201 can further ensure that the frame 20 is mainly used to carry the weight of the battery core 201, so that the support portion 22 can be set in a reasonable position. It can be understood that when the battery tray 100 is installed on the vehicle 2000, the width direction of the battery tray 100 may be consistent with the vehicle width direction, and the length direction of the battery tray 100 may be consistent with the vehicle length direction. Of course, the width direction of the battery tray 100 can also be consistent with the vehicle length direction, and the length direction of the battery tray 100 can be consistent with the vehicle width direction.
- the frame 20 also includes a support beam 26, which is connected between the two side beams 23, or the support beam 26 is connected between the front end beam 24 and the rear end beam. 25, or the support beam 26 is connected between the front end beam 24 and the side beam 23, or the support beam 26 is connected between the rear end beam 25 and the side beam 23.
- This arrangement can improve the structural strength of the frame 20, thereby The structural strength of the battery tray 100 can be improved.
- the battery tray 100 also includes an expansion beam 27 .
- the expansion beam 27 is provided on the side of the tray bottom plate 10 away from the frame 20 .
- the expansion beam 27 is set above the pallet bottom plate 10.
- the expansion beam 27 is installed on the support beam 26 through bolts. After the battery core 201 is installed in the placement slot 111, when the battery core 201 expands, the expansion beam 27
- the battery core 201 can be limited to improve the safety of the battery core 201.
- a plurality of support beams 26 are provided.
- the plurality of support beams 26 can be arranged at intervals along the length direction of the side beams 23 .
- the length direction of the side beams 23 refers to the front-to-back direction in FIG. 6 .
- the plurality of support beams 26 can be spaced apart in sequence. 26 can also be spaced sequentially along the width direction of the side battery tray 100.
- the width direction of the battery tray 100 refers to the left and right direction in Figure 6. In this application, multiple support beams 26 are spaced sequentially along the length direction of the side beam 23.
- the plurality of expansion beams 27 there are a plurality of expansion beams 27 , and the plurality of expansion beams 27 are arranged at intervals along the length direction of the side beam 23 .
- the plurality of expansion beams 27 and the plurality of support beams 26 are arranged in one-to-one correspondence.
- One expansion beam 27 is installed on a support beam 26 through bolts, so that the expansion beam 27 can be firmly installed on the frame 20 .
- the support portion 22 is disposed close to the lower end of the side beam 23. It can also be understood that the support portion 22 is disposed close to the end of the side beam 23 away from the pallet bottom 10, After the base plate body 11 is installed in the installation space 21 , by disposing the support portion 22 close to the end of the side beam 23 away from the pallet bottom plate 10 , it can be ensured that the support portion 22 is supported below the base plate body 11 , and the base plate body 11 can also be ensured. It can be installed in the installation space 21.
- the upper end of the placement slot 111 is open, and the battery core 201 can be removed from the placement slot.
- the open end of 111 is put into the placement slot 111.
- the extension part 12 extends along the open end of the placement slot 111.
- the extension part 12 is connected to the upper end of the base plate body 11. After the base plate body 11 is installed in the installation space 21, such an arrangement can make the extension part 12 disposed outside the placement slot 111 to ensure that the extension 12 is placed in the battery holder
- the up and down directions of the tray 100 are arranged corresponding to the frame 20, thereby ensuring the sealing of the battery tray 100.
- the surface of the support part 22 close to the pallet bottom 10 is configured as a plane. That is to say, as shown in FIG. 11 , the upper surface of the support part 22 It is set as a plane, so that the support area of the support part 22 and the bottom plate body 11 can be ensured, and the support part 22 can better support the battery core 201 .
- the support portion 22 is located below the base body 11 and is fixedly connected to the base body 11 .
- the tray bottom plate 10 is bonded to the frame 20 .
- the pallet bottom plate 10 and the frame 20 are bonded and connected by applying adhesive (such as structural glue) between the pallet bottom plate 10 and the frame 20, and the thickness control of the adhesive is used to absorb the dimensional tolerance of the frame 20, and at the same time
- the pallet bottom plate 10 has good flatness, and the adhesive can absorb tolerances to reduce manufacturing requirements for the pallet bottom plate 10 and the frame 20 .
- the tray bottom plate 10 is easily deformed during the welding process, which increases the size requirements for the battery cells 201 during the subsequent assembly process of the battery pack 200, affecting the assembly efficiency of the battery pack 200.
- the deformation of the tray bottom plate 10 can be prevented, and the impact on the battery cells 201 during the subsequent assembly process of the battery pack 200 is reduced.
- the size requirements improve the assembly efficiency of the battery pack 200.
- the pallet bottom plate 10 is constructed as a one-piece molded part, and the pallet bottom plate 10 is molded using lightweight composite materials. During the molding process, the pallet bottom plate 10 forms good airtightness after the resin melts, flows, and solidifies. At the same time, mold molding can ensure that the pallet bottom plate 10 has good flatness and dimensional accuracy, and ensures the sealing function of the pallet bottom plate 10 .
- the frame 20 is constructed as a metal piece.
- the frame 20 can be made of aluminum material.
- the frame 20 can also be made of steel material.
- the frame 20 can also be made of other steel materials.
- the material is made of the same metal material.
- the frame 20 is made of steel material.
- the frame 20 can be formed by rolling of steel material.
- the frame 20 can also be formed by extrusion of steel material. Among them, by arranging the frame 20 as a metal piece, the load-bearing capacity of the frame 20 can be improved, and the risk of deformation of the frame 20 can be reduced.
- the frame 20 made of steel material can withstand high temperatures above 1500°C, ensuring the integrity of the frame 20 when the battery core 201 thermally runs away.
- the side beam 23 includes a side beam body 231.
- the side beam body 231 defines a cavity.
- the connecting plate 232 is connected obliquely to the cavity.
- the connecting plate 232 can divide the cavity into multiple sub-cavities 235.
- the multiple sub-cavities 235 are arranged sequentially in the width direction of the side beam 23.
- the width direction of the side rails 23 refers to the left-right direction in Figure 11. Further, as shown in FIG.
- the connecting plate 232 extends obliquely in the direction away from the placement slot 111 .
- the connecting plate 232 divides the cavity into two sub-cavities 235 , and the two sub-cavities 235 are in
- the width direction of the side beams 23 is arranged in sequence. This arrangement can improve the structural strength of the side beams 23 and improve the stability of the side beams 23, thereby improving the ability of the side beams 23 to support the battery cells 201 and further reducing the frame. 20 Risk of deformation.
- the plurality of subcavities 235 are arranged sequentially in the width direction of the side beam 23.
- the subcavities 235 of the plurality of subcavities 235 that are far away from the installation space 21 (or the placement slot 111) of the battery tray 100 are impacted, for example: located in FIG.
- the impacted sub-cavity 235 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 reducing the risk of the battery pack 200 being damaged.
- the safety of using the battery pack 200 can be improved.
- the first side wall 236 of the cavity away from the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and The first side wall 236 is connected to the connecting plate 232 .
- the lower end of the first side wall 236 has a first connecting portion 238 extending toward the cavity.
- the first connecting portion 238 is located on the side of the bottom wall 234 of the cavity facing the top wall 233 of the cavity.
- the first side wall 236 is connected to the bottom wall 234 and the connecting plate 232 of the cavity through the first connecting part 238.
- the first connecting part 238 is welded and connected to the bottom wall 234 of the cavity.
- Such an arrangement can further enhance the side beam 23.
- the structural strength can further improve the stability of the side beams 23.
- the second side wall 237 of the cavity close to the installation space 21 is connected between the top wall 233 of the cavity and the bottom wall 234 of the cavity, and The second side wall 237 is connected to the connecting plate 232 .
- the upper end of the second side wall 237 has a second connecting portion 239 extending toward the cavity.
- the second connecting portion 239 is located on a side of the top wall 233 of the cavity facing the bottom wall 234 of the cavity. side, the second side wall 237 is connected to both the top wall 233 and the connecting plate 232 of the cavity through the second connecting portion 239 .
- the second connecting part 239 is welded to the top wall 233 of the cavity.
- the top wall 233 of the cavity, the bottom wall 234 of the cavity, the first side wall 236 and the second side wall 237 jointly define the cavity. This arrangement can further Improving the structural strength of the side beam 23 can further improve the stability of the side beam 23 .
- the lower end of the second side wall 237 is connected to a support portion 22, and the support portion 22 is connected to the bottom of the cavity.
- Wall 234 connection Furthermore, in the width direction of the side beam 23 , the bottom wall 234 of the cavity has a structural reinforcement part 2341 extending below the support part 22 , and the structural reinforcement part 2341 is connected to the end of the support part 22 close to the pallet bottom 10 , or it can be It is understood that the structural reinforcement part 2341 extends below the support part 22, and the structural reinforcement part 2341 is connected to the end of the support part 22 close to the installation space 21. Furthermore, the structural reinforcement part 2341 is provided with a boss structure protruding toward the support part 22. 2391, the boss structure 2391 is connected to the support part 22. This arrangement can further improve the structural strength of the side beam 23 and further improve the stability of the side beam 23.
- the height direction of the side beam 23 is consistent with the height direction of the battery tray 100
- the width direction of the side beam 23 may be consistent with the width direction or length direction of the battery tray 100
- the side structure reinforcement part 2341 is provided with a plurality of boss structures 2391.
- the plurality of boss structures 2391 are sequentially arranged in the width direction of the side beam 23. At least one of the plurality of boss structures 2391 is located on the receiving surface. Below the pressure area 112, this arrangement enables the boss structure 2391 to support the battery core 201, which can further improve the load-bearing capacity of the frame 20 and reduce the risk of deformation of the support portion 22.
- the tray bottom plate 10 includes a bottom plate body 11.
- the bottom plate body 11 defines a placement slot 111.
- the placement slot 111 is used to accommodate the battery core 201.
- the bottom surface of the placement slot 111 is adapted to be connected to the battery through the first adhesive member.
- the battery core 201 is glued and fixed to ensure that the battery core 201 is stably placed in the placement slot 111 .
- the pallet bottom plate 10 also includes a first support protrusion 117.
- the first support protrusion 117 is provided on the bottom surface of the placement groove 111, and the first support protrusion 117 protrudes from the bottom surface of the placement groove 111.
- the first support protrusion 117 and The bottom surfaces of the placing grooves 111 jointly define the third glue-containing area 11a, and the side walls of the first support protrusions 117 participate in defining the side walls of the third glue-containing area 11a.
- the third glue-containing area 11a is used to accommodate the first glue joint. component, the first supporting protrusion 117 is used to support the battery core 201.
- the first support protrusion 117 can support the bottom of the battery core 201.
- the first support protrusion 117 is provided between the battery core 201 and the bottom surface of the placement groove 111.
- the first glue is also provided between the battery core 201 and the bottom surface of the placement slot 111, and the first adhesive member securely connects the bottom of the battery core 201 to the bottom surface of the placement slot 111; then the first adhesive member is located on the first supporting protrusion.
- the surface of the first adhesive member that is bonded to the battery core 201 and the surface of the first support protrusion 117 that supports the battery core 201 can be basically on the same plane, so that the thickness of the first adhesive member is the same as that of the first support protrusion 117. If the height of the first support protrusion 117 is consistent, the first support protrusion 117 can play a role in limiting the thickness of the first adhesive member, so that the first adhesive member can be adjusted by adjusting the height of the first support protrusion 117 The thickness ensures the bonding strength of the first bonding part, thereby ensuring reliable bonding between the tray bottom plate 10 and the battery core 201.
- the first support protrusion 117 and the bottom plate body 11 are one piece, so during the assembly process of the tray bottom plate 10 and the battery core 201, there is no need for personnel to pre-paste the rubber limit strip on the bottom of the placement slot 111, and there is no need to add additional parts and reduce the cost.
- the assembly process of 201 improves the assembly efficiency of the tray bottom plate 10 and the battery core 201, while ensuring the connection strength between the first support protrusion 117 and the bottom plate body 11.
- the first support protrusion 117 is provided on the bottom surface of the placement groove 111, and the first support protrusion 117 protrudes from the bottom surface of the placement groove 111, and the first support protrusion 117 is connected to the bottom surface of the placement groove 111.
- the bottom surface of the placement groove 111 jointly defines a third glue-containing area 11a.
- the third glue-containing area 11a is used to accommodate the first glue joint.
- the first support protrusion 117 and the bottom plate body 11 are integrated, and there is no need to manually set them separately.
- the first support protrusion 117 improves the processing efficiency of the tray bottom plate 10, simplifies the assembly process of the tray bottom plate 10 and the battery core 201, and improves the assembly efficiency of the tray bottom plate 10 and the battery core 201.
- cross-sectional shape of the first supporting protrusion 117 can be specifically set according to actual requirements.
- the first support protrusion 117 and the bottom plate body 11 are a heat-pressed integrated piece, and the material of the first support protrusion 117 is the same as the material of the bottom plate body 11 .
- a plurality of first supporting protrusions 117 spaced along a first direction constitute a protrusion group 18 , and the protrusion group 18
- the number of 18 is multiple, and the plurality of protrusion groups 18 are spaced apart along the second direction (for example, the BB' direction in FIG. 17).
- the first direction is perpendicular to the second direction, then the plurality of protrusion groups 18 on the bottom surface of the groove 111 are placed.
- One support protrusion 117 can be arranged in multiple rows and columns along the second direction and the first direction, which simplifies the arrangement of the plurality of first support protrusions 117 and facilitates the processing of the first support protrusions 117.
- each support protrusion 117 is arranged in multiple rows and columns. Between any two adjacent first support protrusions 117 in the protrusion group 18, and between the first support protrusions 117 adjacent to the edge of the bottom plate body 11 in each protrusion group 18 and the edge of the bottom plate body 11 can be defined respectively.
- the glue-containing groove 11b is provided, and the glue-containing groove 11b accommodates a part of the first glue joint, then each group of protrusions 18 can correspond to multiple glue-containing grooves 11b, and any two adjacent ones can
- the glue grooves 11b are connected, so that the structural glue in any glue-containing groove 11b can flow directly or indirectly to any other glue-containing groove 11b, which reduces the requirements for the glue location.
- the structural glue can Enter any glue sub-slot 11b, and through the fluidity of the structural glue, the third glue-containing area 11a corresponding to the bottom surface of the entire placement slot 111 can be filled with structural glue.
- the deglue agent can After hitting the glue into the selected glue-containing sub-tank 11b, the entire first glue joint can be dissolved through the fluidity of the degluing agent, thereby smoothly separating the battery core 201 and the tray bottom plate 10.
- one of the first direction and the second direction may be the length direction of the battery tray 100 , and the other may be the width direction of the battery tray 100 .
- the tray bottom plate 10 When the tray bottom plate 10 is used for the battery pack 200, there are multiple battery cells 201, and the multiple battery cells 201 are spaced apart along the second direction.
- the degluing agent can be poured into the phase.
- the gap between two adjacent battery cells 201, that is, the degumming agent is poured from the direction of the poles of the battery cores 201, so that degumming can be completed better.
- the plurality of first support protrusions 117 of the protrusion group 18 can be arranged at equal intervals or at unequal intervals, and the number of the first support protrusions 117 of the plurality of protrusion groups 18 can be equal or unequal; for example , in the example of FIG. 17 , at least one protrusion group 18 includes three first support protrusions 117 , and at least one protrusion group 18 includes four first support protrusions 117 .
- the projections of the first support protrusions 117 of two adjacent protrusion groups 18 along the first direction partially overlap. That is to say, the projections of the two adjacent protrusion groups 18 overlap. 18, a part of the projection of at least one first support protrusion 117 of one protrusion group 18 along the first direction and a part of the projection of at least one first support protrusion 117 of the other protrusion group 18 along the first direction. Overlapping facilitates the continuous extension of projections of the plurality of protrusion groups 18 along the first direction.
- first support protrusions 117 supporting a single battery core 201 it is beneficial to increase the number of first support protrusions 117 supporting a single battery core 201 and improve the strength of the battery core 201. Installation stability; at the same time, since the projections of the first support protrusions 117 of two adjacent protrusion groups 18 partially overlap in the first direction, at least one first support protrusion 117 of one protrusion group 18 is in contact with the other. At least one first support protrusion 117 of the protrusion group 18 is spaced apart along the first direction, which increases the communication cross-sectional area between the corresponding glue-containing sub-grooves 11b of two adjacent protrusion groups 18, thereby improving the connection between the two adjacent protrusion groups 18.
- the connectivity between the corresponding glue-containing sub-grooves 11b of the set of protrusions 18 is conducive to allowing the structural glue to quickly fill the third glue-containing area 11a, allowing the degluing agent to quickly weld and dissolve the first glue joint.
- the height of the first support protrusion 117 is h1, that is, the distance between the top surface of the first support protrusion 117 and the bottom surface of the placement groove 111 is h1, or the first The distance between the side surface of the support protrusion 117 away from the bottom surface of the placement groove 111 and the bottom surface of the placement groove 111 is h1, 0.5mm ⁇ h1 ⁇ 1.5mm, so as to ensure that the third glue-containing area 11a has sufficient glue-containing space. , thereby ensuring the bonding strength of the first bonded part and at the same time facilitating the processing of the first support protrusion 117 .
- the tray bottom plate 10 is made of an insulating material, so that the tray bottom plate 10 has good electrical insulation. Even if the coolant of the battery pack 200 leaks, etc., the risk of high-voltage arcing between the tray bottom plate 10 and the battery core 201 can be avoided. , to ensure the normal use of the battery pack 200; and the pallet bottom plate 10 is an integrally formed part, which saves the connection process between the various parts of the pallet bottom plate 10, which is conducive to improving the processing efficiency of the pallet bottom plate 10, and at the same time, there is no need to install on each part of the pallet bottom plate 10 Processing the connection structure, etc. can help simplify the structure of the pallet bottom plate 10, reduce costs, and ensure the connection strength between various parts of the pallet bottom plate 10 to ensure the overall structural strength of the pallet bottom plate 10.
- the processing method of the pallet bottom plate 10 can be specifically set according to actual needs; for example, the pallet bottom plate 10 can be formed into a molded integral part by molding.
- the pallet bottom plate 10 is made of composite materials, which not only ensures the electrical insulation of the pallet bottom plate 10 but also ensures the structural strength of the pallet bottom plate 10 so that the pallet bottom plate 10 can stably carry the battery core 201 .
- the bottom plate body 11 includes a bottom plate 1111 and a side plate 1112.
- the side plate 1112 is arranged around the bottom plate 1111, and the side plate 1112 and the bottom plate 1111 jointly define a placement slot 111 , the side plate 1112 can be roughly formed into a ring-shaped structure, and the bottom plate 1111 and the side plate 1112 can respectively play a certain limiting role on the battery core 201 to ensure the stable installation of the battery core 201.
- the top surface of the bottom plate 1111 is formed as the bottom surface of the placement groove 111, and the bottom surface of the bottom plate 1111 is provided with a second support protrusion 115.
- the second support protrusion 115 has the same structure as the second rib 114 in the above embodiment.
- the first support protrusion 117 and the second support protrusion 115 are respectively provided on both sides of the thickness of the bottom plate 1111, so that the first support protrusion 117 and the second support protrusion 115 are located on the different thickness sides of the bottom plate 1111; the bottom plate
- the bottom surface of 1111 is suitable for being glued and fixed with the frame 20 through the second glue joint to ensure that the bottom plate 1111 and the frame 20 are firmly fixed;
- the second support protrusion 115 and the bottom surface of the bottom plate 1111 jointly define a fourth glue-containing area, then the fourth glue-containing area is defined.
- the side walls of the two support protrusions 115 participate in defining the side walls of the fourth glue-accommodating area.
- the fourth glue-accommodating area is used to accommodate the second adhesive component, and the second support protrusion 115 is used to stop and cooperate with the frame 20 .
- the second support protrusion 115 can overlap the top surface of the frame 20, and the second support protrusion 115 is provided between the bottom surface of the bottom plate 1111 and the frame 20, and the second glue
- the connector is also provided between the bottom surface of the base plate 1111 and the frame 20, and the second adhesive member securely connects the bottom surface of the bottom plate 1111 to the frame 20, so the surface of the second adhesive member that is bonded to the frame 20 is connected to the second support.
- the surface of the protrusion 115 that stops the frame 20 can be basically on the same plane, so that the thickness of the second adhesive member is consistent with the height of the second support protrusion 115, and the second support protrusion 115 can limit the second adhesive. Therefore, the thickness of the second adhesive member can be adjusted by adjusting the height of the second support protrusion 115 to ensure the bonding strength of the second adhesive member, thereby ensuring reliable bonding between the base plate 1111 and the frame 20 .
- the second support protrusion 115 and the bottom plate 1111 are integrated, which further improves the processing efficiency of the pallet bottom plate 10, simplifies the assembly process of the pallet bottom plate 10 and the frame 20, and improves The assembly efficiency of the pallet bottom plate 10 and the frame 20 is improved.
- the second support protrusion 115 and the bottom plate 1111 are a heat-pressed integrated piece, and the material of the second support protrusion 115 is the same as the material of the bottom plate 1111 .
- the bottom plate body 11 also includes an extension portion 12.
- the extension portion 12 is provided at the edge of the side plate 1112, and the extension portion 12 is arranged around the side plate 1112.
- the extension portion 12 can be roughly formed into an annular structure.
- the bottom surface of the extension part 12 is provided with a third support protrusion 116.
- the third support protrusion 116 is the same structural member as the first rib 121 in the above embodiment.
- the bottom surface of the extension part 12 is suitable for a third adhesive connection.
- the parts and the frame 20 are glued and fixed to ensure that the extension part 12 and the frame 20 are firmly fixed; the third support protrusion 116 and the bottom surface of the extension part 12 jointly define a fifth glue-containing area, then the side walls of the third support protrusion 116 Participating in defining the side wall of the fifth glue-accommodating area, the fifth glue-accommodating area is used to accommodate the third adhesive component, and the third support protrusion 116 is used to stop and cooperate with the frame 20 .
- the third support protrusion 116 can overlap the frame 20, and the third support protrusion 116 is provided between the bottom surface of the extension 12 and the frame 20, and the third adhesive member It is also provided between the bottom surface of the extension part 12 and the frame 20, and the third adhesive member fixedly connects the bottom surface of the extension part 12 to the frame 20, then the surface of the third adhesive member bonded to the frame 20 is connected to the third support
- the surface of the protrusion 116 that stops the frame 20 can be basically on the same plane, so that the thickness of the third adhesive member is consistent with the height of the third support protrusion 116 , and the third support protrusion 116 can limit the third adhesive. Therefore, the thickness of the third adhesive member can be adjusted by adjusting the height of the third support protrusion 116 to ensure the bonding strength of the third adhesive member, thereby ensuring that the extension 12 and the frame 20 are bonded. reliable.
- the third support protrusion 116 and the extension part 12 are integrated, which further improves the processing efficiency of the pallet bottom plate 10, simplifies the assembly process of the pallet bottom plate 10 and the frame 20, and improves the assembly of the pallet bottom plate 10 and the frame 20. efficiency.
- the third support protrusion 116 and the extension part 12 are a heat-pressed integrated piece, and the material of the third support protrusion 116 is the same as the material of the extension part 12 .
- the extension 12 is formed with a plurality of escape through holes 112b.
- the escape through holes 112b are the same components as the escape through holes 122 in the above embodiments.
- a plurality of escape through holes 112b are arranged at intervals along the periphery of the base plate body 11, and a plurality of escape through holes 112b are arranged around the base plate body 11.
- At least one third support protrusion 116 is provided between any two adjacent escape through holes 112b, so that This is to ensure that the third support protrusion 116 effectively limits the thickness of the third adhesive component, thereby helping to improve the thickness uniformity of the third adhesive component and ensuring a balanced bonding strength of the third adhesive component.
- one or more third support protrusions 116 are provided between two adjacent escape through holes 112b.
- the third support protrusions between two adjacent escape through holes 112b are The number of 116 is equal to or different from the number of third support protrusions 116 between any two adjacent escape through holes 112b; for example, in the example of FIG. A third supporting protrusion 116 is provided.
- the tray bottom plate 10 when the tray bottom plate 10 is used in the battery tray 100, the tray bottom plate 10 is fixedly connected to the frame 20, and the frame 20 is connected to the upper cover of the battery pack 200 through fasteners, thereby protecting the battery core 201.
- the tray bottom plate 10 is fixedly connected to the frame 20, and the frame 20 is connected to the upper cover of the battery pack 200 through fasteners, thereby protecting the battery core 201.
- Fasteners are used to fixedly connect the top cover to the frame 20.
- the fasteners are inserted through the avoidance through holes 112b.
- the avoidance through holes 112b can achieve good avoidance of the fasteners. .
- the extension section 12 includes multiple extension sections 1121 , which are connected end to end so that the extension section 12 is formed into a polygonal ring.
- Each extension section 1121 is formed with a plurality of escape through holes 112 b .
- the plurality of through holes 120 on each extension section 1121 may be spaced apart along the length direction of the extension section 1121 .
- At least one third support protrusion 116 extends in a long strip shape along the width direction of the extension part 12 , and the length of the third support protrusion 116 is greater than the avoidance through hole 112 b The diameter is such that the third support protrusion 116 completely separates two adjacent avoidance through holes 112b to better limit the thickness of the third adhesive member.
- At least one third support protrusion 116 extends along the width direction of the extension part 12 as Elongated shape, the length of the third support protrusion 116 is greater than or equal to half the width of the extension part 12, and the length of the third support protrusion 116 is less than the width of the extension part 12, which facilitates lifting of the third support protrusion 116 to the entire third adhesive.
- the limiting effect of joint thickness is not limited.
- the height of the second support protrusion 115 is h2, that is, the distance between the bottom surface of the second support protrusion 115 and the bottom surface of the bottom plate 1111 is h2, or in other words, the height of the second support protrusion 115 is h2.
- the distance between the side surface of the two support protrusions 13 away from the bottom surface of the bottom plate 1111 and the bottom surface of the bottom plate 1111 is h2, 0.5mm ⁇ h2 ⁇ 1.5mm, so as to ensure that the fourth glue-containing area has sufficient glue-containing space, thereby The bonding strength of the second bonding part is ensured and the processing of the second support protrusion 115 is facilitated.
- the height of the third support protrusion 116 is h3, that is, the distance between the bottom surface of the third support protrusion 116 and the bottom surface of the extension part 12 is h3, or the third support
- the distance between the side surface of the protrusion 116 away from the bottom surface of the extension part 12 and the bottom surface of the extension part 12 is h3, 0.5mm ⁇ h3 ⁇ 1.5mm, so as to ensure that the fifth glue-containing area has sufficient glue-containing space, so that The bonding strength of the third bonding part is ensured, and the processing of the third support protrusion 116 is facilitated.
- the height of the second support protrusion 115 is h2
- the height of the third support protrusion 116 is h3, 0.5mm ⁇ h2 ⁇ 1.5mm, and 0.5mm ⁇ h3 ⁇ 1.5mm.
- the battery tray 100 includes a tray bottom plate 10 and a frame 20.
- the tray bottom plate 10 is the tray bottom plate 10 according to the above-mentioned first embodiment of the present application, and the frame 20 It is arranged around the pallet bottom 10 , and the frame 20 is fixedly connected with the pallet bottom 10 .
- the use of the above-mentioned tray bottom plate 10 is beneficial to improving the processing efficiency of the battery tray 100 .
- the frame 20 is supported on the bottom of the tray bottom plate 10 , and the frame 20 is located outside the placement groove 111 , so as to facilitate the indirect and stable bearing of the battery core 201 by the frame 20 .
- the bottom plate body 11 includes a bottom plate 1111 and a side plate 1112.
- the side plate 1112 is arranged around the bottom plate 1111 and the side plate 1112 and the bottom plate 1111 jointly define a placement slot 111.
- the bottom surface of the bottom plate 1111 is provided with
- the second support protrusion 115 and the bottom surface of the bottom plate 1111 are glued and fixed to the frame 20 through a second adhesive member.
- the second support protrusion 115 and the bottom surface of the bottom plate 1111 jointly define a fourth glue-containing area.
- the fourth glue-containing area accommodates The second adhesive member, the second support protrusion 115 is in a stop fit with the frame 20 , wherein the second support protrusion 115 extends toward the center of the placement groove 111 until it is at least flush with the inner edge of the frame 20 , that is, w ⁇ 0 , in order to ensure the consistency of the thickness of the entire second adhesive member, thereby ensuring the adhesive strength of the second adhesive member, and ensuring the reliable adhesive connection between the bottom plate 1111 and the frame 20, so that the part of the frame 20 supporting the bottom plate 1111 can be used as an electrical circuit
- the main load-bearing part of core 201 The main load-bearing part of core 201.
- the side plate 1112 and the frame 20 are glued and fixed through a fourth adhesive member to further ensure that the tray bottom plate 10 and the frame 20 are firmly connected.
- the bottom plate body 11 also includes an extension part 12 , the extension part 12 is provided at the edge of the side plate 1112 , and the extension part 12 is arranged around the side plate 1112 ; the frame 20 surrounds the side plate 1112 . If the plate 1112 is provided, the frame 20 can be roughly formed into an annular structure, and the frame 20 is fixedly connected to the extension 12, so as to ensure that there is sufficient connection area between the frame 20 and the bottom plate body 11, thereby ensuring that the first frame 201 and the bottom plate body are 11The connection is reliable.
- ring is understood in a broad sense, that is, it is not limited to “circular ring”, for example, it can also be “polygonal ring” and so on.
- the frame 20 , the side panels 1112 and the extension 12 are each roughly formed into a polygonal ring.
- the frame 20 includes a plurality of side beams connected end to end, and the side beams are connected to the corresponding sides of the extension 12 . (e.g., the corresponding extension 1121 described herein) is fixed.
- the side beam includes a first beam body 211 and a second beam body 212.
- the first beam body 211 is the same component as the side beam body 231 in the above embodiment.
- the second beam body 212 is the same component as the support part 22 in the above embodiment.
- the first beam body 211 is fixedly connected to the extension part 12; the second beam body 212 is disposed inside the first beam body 211. 212 is fixedly connected to the base plate 1111.
- first beam body 211 and the extension part 12 are glued and fixed through a third adhesive member, there is no need to open a connection hole in the extension part 12 and the first beam body 211 , which simplifies the first beam body 211 and the extension part 12 processing procedures. This ensures a large bonding area between the side beam and the chassis body 11, effectively ensuring the connection strength between the frame 20 and the chassis body 11.
- the second beam body 212 and the bottom surface of the bottom plate 1111 are glued and fixed through a second adhesive member, and the second beam body 212 and the second support protrusion 115 stop and match, the second beam body 212 can indirectly carry the battery core 201 to effectively ensure the reliable installation of the battery core 201, and at the same time reduce the load-bearing requirements of the base plate body 11, which is conducive to reducing the installation requirements of the base plate body 11 and reducing the battery tray 100 cost.
- the side beam includes the first beam body 211 and the second beam body 212
- the first beam body 211 and the second beam body 212 are integrally formed parts.
- the structures of multiple side beams may be the same or different; for example, when the structures of multiple side beams are the same, each side beam includes a first beam body 211 and a second beam body 212 respectively; For another example, when the structures of the multiple side beams are different, at least one side beam includes the first beam body 211 and the second beam body 212 , and at least one side beam includes the first beam body 211 but not the second beam body 212 .
- the battery pack 200 includes a battery core 201 and a battery tray 100.
- the battery tray 100 is the battery tray 100 according to the second embodiment of the present application.
- the placement slot 111 accommodates the battery core 201.
- the placement slot 111 accommodates the battery core 201.
- the bottom surface of 111 and the battery core 201 are glued and fixed.
- the assembly efficiency of the battery pack 200 can be improved.
- the number of battery cores 201 is multiple, and the multiple battery cores 201 are sequentially arranged along the second direction, and the length of each battery core 201 extends along the first direction.
- the bottom of each battery core 201 is supported with at least three first support protrusions 117.
- the at least three first support protrusions 117 can be arranged at intervals along a first direction, and the first direction is perpendicular to the second direction to ensure that the battery core 201 is placed stably, and the thickness of the first adhesive member between the battery core 201 and the bottom surface of the placement groove 111 is relatively balanced, thereby ensuring that the battery core 201 is installed firmly.
- the two first support protrusions 117 located at both ends in the first direction are in contact with the battery core.
- the distance between the corresponding ends of 201 is equal, which is conducive to further improving the stability of placement of the battery core 201, so that the plurality of first support protrusions 117 stably support the battery core 201.
- a plurality of first support protrusions 117 corresponding to one battery core 201 are arranged at intervals along the front-to-back direction.
- the frontmost one is the first support protrusion 117.
- the distance between a support protrusion 117 and the front end of the battery core 201 is L1
- the battery pack 200 further includes an expansion beam 27 , and the expansion beam 27 is tightly connected to the frame 20 by passing high-strength grade bolts (grade 10.9 or above) through holes in the base plate body 11 .
- a battery pack 200 includes a battery core 201 , a battery tray 100 and a cover 40 .
- the battery tray 100 is the battery tray 100 of the above embodiment.
- the cover 40 and the tray bottom 10 jointly define a placement cavity 41 for placing the battery core 201 , and the cover 40 is connected to the frame 20 . Further, the cover 40 covers the open end of the placement groove 111 to define the placement cavity 41.
- the extension 12 is sandwiched between the cover 40 and the frame 20. Bolts are used to pass through the cover 40, the extension 12 and the frame. 20 Assemble the cover 40, the tray bottom 10 and the frame 20 together.
- a seal 203 (such as a sealing ring) is sandwiched between the extension 12 and the cover 40.
- the seal 203 can seal the placement cavity 41, and the cover 40 and the tray bottom 10 define a sealed insulating cavity ( That is, the placement cavity 41), after the battery core 201 is placed in the placement cavity 41, the battery core 201 can be completely isolated from the frame 20.
- the battery core 201 is in a completely insulated environment, and the battery pack 200 has no risk of leakage.
- the battery pack 200 may further include: a pressure plate 202 configured as a closed ring structure, with the cover 40 , the seal 203 and the extension 12 sandwiched between the pressure plate 202 and the extension 12 .
- a pressure plate 202 configured as a closed ring structure, with the cover 40 , the seal 203 and the extension 12 sandwiched between the pressure plate 202 and the extension 12 .
- the pressure plate 202 can press the entire seal 203 Uniformly, ensuring that the placement cavity 41 is sealed reliably.
- the 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 frame 20 of the battery pack 200 carries most of the weight of the battery cell 201, and the 10 pallet bottom plates Carrying a small part of the weight of the battery cells 201, the tray bottom plate 10 is mainly responsible for the sealing function.
- the tray bottom plate 10 made of lightweight composite materials can be used, which is beneficial to the lightweight design and cost of the battery tray 100, the battery pack 200, and the vehicle 2000.
- the pallet bottom plate 10 made of composite materials has excellent electrical insulation properties.
- the battery pack 200 will not be exposed to high-voltage risks such as arcing, which improves the safety of the vehicle 2000.
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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(10)(10),托盘底板(10)(10)包括底板本体(11),底板本体(11)限定出用于放置电芯(201)的放置槽(111),放置槽(111)的底壁具有用于支撑电芯(201)的受压区域(112);边框(20),底板本体(11)安装于边框(20),边框(20)具有支撑部(22),支撑部(22)用于支撑底板本体(11),在电池托盘(100)的高度方向,支撑部(22)的正投影与受压区域(112)的正投影具有重合区域。
Description
相关申请的交叉引用
本申请基于申请号为2022205540646、申请日为2022年03月14日的中国专利申请、申请号为2022205635773、申请日为2022年03月14日的中国专利申请、申请号为2022205634874、申请日为2022年03月14日的中国专利申请以及申请号为2022205635788、申请日为2022年03月14日的中国专利申请提出,并要求上述中国专利申请的优先权,上述中国专利申请的全部内容在此引入本申请作为参考。
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。
相关技术中,电池包包括电池托盘,电池托盘包括边框和托盘底板,边框和托盘底板焊接连接形成电池托盘,托盘底板构造为板状结构且用于支撑电芯,托盘底板主要承载电芯重量,导致托盘底板厚度较大,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,该电池托盘的边框承载电芯的大部分重量,托盘底板只承载电芯的小部分重量,可以减小托盘底板厚度,有利于电池托盘、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,包括:托盘底板,所述托盘底板包括底板本体,所述底板本体限定出用于放置电芯的放置槽,所述放置槽的底壁具有用于支撑电芯的受压区域;边框,所述底板本体安装于所述边框,所述边框具有支撑部,所述支撑部用于支撑所述底板本体,在所述电池托盘的高度方向,所述支撑部的正投影与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,通过托盘底板和边框配合,边框主要承载电芯的大部分重量,托盘底板只承载电芯的小部分重量,可以减小托盘底板厚度,有利于电池托盘、电池包的轻量化设计以及成本降低。
本发明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,或通过本发明的实践了解到。
图1是根据本申请实施例的电池包的爆炸图;
图2是根据本申请实施例的电池包的截面图;
图3是图2中A处放大图;
图4是根据本申请实施例的电池托盘和电芯的装配示意图;
图5是根据本申请实施例的电池托盘的示意图;
图6是根据本申请实施例的电池托盘的爆炸图;
图7是根据本申请实施例的电池托盘的托盘底板的示意图;
图8是根据本申请实施例的电池托盘的边框的示意图;
图9是根据本申请实施例的电池托盘的侧边梁的示意图;
图10是图9中B处放大图;
图11是根据本申请实施例的电池托盘和电芯装配的局部放大图;
图12是根据本申请实施例的电池托盘的托盘底板的另一个角度示意图;
图13是图12中C处放大图;
图14是根据本申请实施例的电池托盘的截面图;
图15是图14中D处放大图;
图16是根据本申请实施例的电池包的示意图;
图17是根据本申请一个实施例的托盘底板的示意图;
图18是图17中所示的托盘底板的另一个示意图;
图19是图17中圈示的E部的放大图;
图20是图17中所示的托盘底板的再一个示意图;
图21是图20中圈示的F部的放大图;
图22是图20中所示的托盘底板的局部示意图;
图23是根据本申请一个实施例的电池托盘的剖视图;
图24是图23中圈示的G部的放大图;
图25是根据本申请一个实施例的电池包的爆炸图;
图26是图25中所示的托盘底板和电池的装配示意图;
图27是图25中所示的边框的示意图;
图28是根据本申请实施例的车辆示意图。
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15描述根据本申请实施例的电池托盘100,电池托盘100应用于电池包200。
如图1-图11所示,根据本申请实施例的电池托盘100包括:托盘底板10和边框20。托盘底板10包括底板本体11,托盘底板10还可以包括延伸部12,底板本体11限定出用于放置电芯201或电池模组的放置槽111,本申请以放置槽111放置电芯201为例进行说明。放置槽的底壁113具有用于支撑电芯201的受压区域112,受压区域112是指电芯201安装于放置槽111内时,在电池托盘100的高度方向,放置槽的底壁113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安装于放置槽111内时,电芯201与放置槽的底壁113的接触区域,接触区域包括电芯201与放置槽的底壁113直接接触的区域或者间接接触的区域,例如:当电芯201和放置槽的底壁113之间具有粘胶剂或者冷却结构时属于电芯201与放置槽的底壁113间接接触,当电芯201和放置槽的底壁113之间没有其他物体时,电芯201与放置槽的底壁113直接接触,或者也可以理解为电芯201的重量直接作用在放置槽的底壁113的区域为受压区域112。其中,在电池托盘100的高度方向,放置槽的底壁113的正投影也即放置槽的底壁113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。
电芯201安装于电池托盘100内时,电芯201位于放置槽111的受压区域112内,延伸部12沿底板本体11的周向边缘延伸设置。在一些可选的实施例中,延伸部12构造为环型结构,具体地,延伸部12构造为闭环型结构。
底板本体11安装于边框20,进一步地,底板本体11固定安装于边框20,底板本体11可以粘接于边框20,底板本体11也可以通过螺栓安装于边框20,底板本体11和边框20的具体装配方式不具体限定,根据实际需要进行选择。在一些可选的实施例中,边框20限定出安装空间21,底板本体11安装于安装空间21中,延伸部12位于安装空间21外部,在电池托盘100的高度方向,延伸部12位于边框20的上方且设于边框20,边框20具有支撑部22,支撑部22可以朝向安装空间21内延伸设置,支撑部22用于支撑底板本体11,在电池托盘100的高度方向,当电池托盘100以图11中的放置方式放置时,电池托盘100的高度方向是指电池托盘100的上下方向,支撑部22的正投影与受压区域112的正投影具有重合区域,当电芯201放置在放置槽111内后,能够保证支撑部22对电芯201进行支撑,可以保证边框20主要用于承载电芯201重量。可以理解的,当电池托盘100安装于车辆2000上时,电池托盘100的高度方向可以与车辆2000的高度方向一致。
如图6、图8和图11所示,本申请以电池托盘100沿上下方向放置为例进行说明,底板本体11安
装于安装空间21内后,延伸部12设置在安装空间21外部,在电池托盘100的上下方向,延伸部12与边框20对应设置,具体地,如图11所示,延伸部12位于边框20的上方,延伸部12与边框20正对设置,在电池托盘100的上下方向,延伸部12可以遮挡边框20的整个上表面。
其中,如图11所示,当电芯201安装于放置槽111内时,电芯201位于受压区域112内,支撑部22支撑受压区域112,电芯201搭载在边框20上,边框20承载电芯201的大部分重量,托盘底板10基本不承载电芯201的重量或只承载电芯201的小部分重量,这样可大大减轻托盘底板10的承重要求,托盘底板10可以使用强度更低、厚度更薄的材料制成。在一些可选的实施例中,托盘底板10设置为绝缘件。在一些可选的实施例中,托盘底板10设置为非金属件,使用轻质的绝缘属复合材料制成的托盘底板10即可,例如:轻质的绝缘复合材料可以由树脂和玻璃纤维制成,树脂可以为环氧树脂或者聚氨脂,但本申请不限于此,轻质的复合材料也可以由其他与树脂和玻璃纤维起到相同作用的复合材料制成,这样设置能够减小托盘底板10的重量,有利于电池托盘100、电池包200的轻量化设计,并且,现有托盘底板10由铝材料制成,本申请通过使用绝缘复合材料制成托盘底板10,能够降低托盘底板10生产成本,有利于降低电池托盘100、电池包200的生产成本。需要说明的是,由非金属材料制成的托盘底板10具有优异的电绝缘性能,当车辆2000发生严重的搁底事故时,电池包200不会出现拉弧等高压风险。
在一些可选的实施例中,托盘底板10构造为一体成型件,托盘底板10采用轻质的绝缘复合材料模压成型,在模压过程中托盘底板10因树脂熔融流动固化后形成良好的气密性,同时通过模具件成型可以保证托盘底板10具有良好的平面度及尺寸精度,保证托盘底板10的密封功能。边框20可以通过金属拼焊成型,焊接成型后只需保证焊接结构强度及必要的产品平面度,拼焊效率高,提升了电池托盘100的生产效率,且托盘底板10不需进行焊缝打磨及气密性检测,没有焊接导致的密封失效风险。托盘底板10可以采用复合材料模压成型,托盘底板10的生产效率高,模具精度高从而可以获得较高的平面度,降低对电芯201的尺寸要求。
另外,现有电池托盘100未在产品结构上对承重和密封两个功能进行区分,在制造电池托盘100时需要同时考虑整体的承重和密封都需要满足要求,导致电池托盘100的制造效率及良品率低。而在本申请中,对承重和密封两个功能进行区分,边框20主要负责承重,托盘底板10主要负责电池托盘100的密封,提升了电池托盘100的制造效率及良品率低。
由此,通过托盘底板10和边框20配合,边框20承载电芯201的大部分重量,托盘底板10基本不承载电芯201的重量或只承载电芯201的小部分重量,托盘底板10主要承担密封作用,可以减小托盘底板10的厚度,使用轻质的复合材料制成的托盘底板10即可,有利于电池托盘100、电池包200的轻量化设计以及成本降低,并且,托盘底板10和边框20装配在一起后,没有焊接导致电池托盘100的密封失效风险,不需进行焊缝打磨及电池托盘100的气密性检测,提升了电池托盘100的生产效率。
在本申请的一些实施例中,放置槽的底壁113形成有受压区域112,也可以理解为,受压区域112设置在放置槽的底壁113,如图11所示,当电池托盘100以图11中的方式放置时,支撑部22位于底板本体11的下方,支撑部22支撑于放置槽的底壁113,这样设置能够保证支撑部22支撑在受压区域112的下方,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20用于承载电芯201的大部分重量,从而使受压区域112设置位置合理。
在本申请的一些实施例中,如图6和图8所示,边框20包括第一边梁、第二边梁、第三边梁和第四边梁,第一边梁和第二边梁沿第一方向相对设置,第三边梁和第四边梁沿第二方向相对设置,需要说明的是,第一边梁和第二边梁可以构造为边框20的侧边梁23,第一边梁为一个侧边梁23,第二边梁为另一个侧边梁23,第三边梁构造为边框20的前端梁24和后端梁25中的一个,第四边梁构造为前端梁24和后端梁25中的另一个,当边框20以图8中的方式放置时,第一边梁、第二边梁在图8中的左右方向间隔开设置,前端梁24、后端梁25均连接在两个侧边梁23之间,第一边梁、第二边梁、第三边梁和第四边梁相连以形成安装空间21,第一边梁、第二边梁、第三边梁和第四边梁相连包括直接连接和间接连接,例如:以第一边梁和第三边梁连接为例进行说明,第一边梁和第三边梁可以直接连接,第一边梁和第三边梁也可以通过其他梁间接连接。其中,第一方向和第二方向中的一者为电池托盘100的长度方向,第一方向和第二方向中的另一者为电池托盘100的宽度方向,可以理解的,当电池托盘100安装于车辆2000上时,电池托盘100的宽度方向可以与车辆2000的宽度方向一致,电池托盘100的长度方向可以
与车辆2000的长度方向一致。当然,电池托盘100的宽度方向也可以与车辆2000的长度方向一致,电池托盘100的长度方向可以与车辆2000的宽度方向一致。
如图6所示,当电池托盘100以图6中方向放置时,第一方向可以指图6中的左右方向,第二方向可以指图6中的前后方向,当然第一方向可以指图6中的前后方向,第二方向可以指图6中的左右方向,本申请以图6中的左右方向为第一方向、图6中的前后方向为第二方向为例进行说明。第一边梁和/或第二边梁设置有支撑部22,例如:第一边梁和第二边梁均设置有支撑部22,当电芯201沿图8中的左右方向延伸放置时,通过将支撑部22设置于第一边梁和/或第二边梁,能够保证每个电芯201都被支撑部22支撑,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20用于承载电芯201的大部分重量,从而使支撑部22设置位置合理。
在本申请的一些实施例中,如图8所示,边框20还包括支撑梁26,支撑梁26连接在第一边梁和第二边梁之间,或者支撑梁26连接在前端梁24和后端梁25之间,或者支撑梁26连接在前端梁24和侧边梁23之间,或者支撑梁26连接在后端梁25和侧边梁23之间,这样设置能够提升边框20的结构强度,从而可以提升电池托盘100的结构强度。
在本申请的一些实施例中,如图5和图6所示,电池托盘100还包括膨胀梁27,膨胀梁27设置在托盘底板10远离边框20一侧,当电池托盘100以如图5和图6中方式放置时,膨胀梁27设置在托盘底板10的上方,膨胀梁27通过螺栓安装于支撑梁26,电芯201安装于放置槽111内后,电芯201发生膨胀时,膨胀梁27可以对电芯201进行限位,提升电芯201使用安全性。
在一些可选的实施例中,支撑梁26设置为多个,多个支撑梁26沿侧边梁23的长度方向依次间隔开设置,侧边梁23的长度方向是指图6中的前后方向,膨胀梁27为多个,多个膨胀梁27沿侧边梁23的长度方向依次间隔开设置,多个膨胀梁27和多个支撑梁26一一对应设置,一个膨胀梁27通过螺栓安装于一个支撑梁26,从而可以将膨胀梁27稳固地安装于边框20。
在本申请的一些实施例中,如图11所示,第一边梁的支撑部22靠近第一边梁的下端设置,和/或第二边梁的支撑部22靠近第二边梁的下端设置,例如:第一边梁的支撑部22靠近第一边梁的下端设置,且第二边梁的支撑部22靠近第二边梁的下端设置。也可以理解为,支撑部22靠近与其对应的侧边梁23的下端设置,也可以理解为,支撑部22靠近与其对应的侧边梁23的远离托盘底板10的端部设置,底板本体11安装于安装空间21内后,通过将支撑部22靠近侧边梁23的远离托盘底板10的端部设置,能够保证支撑部22支撑在底板本体11的下方,也能够保证底板本体11可安装于安装空间21内。
在本申请的一些实施例中,如图5-图7、图11所示,当电池托盘100以图11中的方式放置时,放置槽111的上端敞开设置,电芯201可以从放置槽111的敞开端放入放置槽111内。并且,延伸部12沿放置槽111的敞开端周向延伸设置,如图11所示,延伸部12与底板本体11的上端连接,底板本体11安装于安装空间21内后,这样设置能够使延伸部12设置在放置槽111的外部,可以保证延伸部12在电池托盘100的上下方向与边框20对应设置,从而可以保证电池托盘100的密封。
在本申请的一些实施例中,如图8、图10和图11所示,支撑部22靠近托盘底板10的表面构造为平面,也就是说,如图11所示,支撑部22的上表面设置为平面,如此设置能够保证支撑部22与底板本体11的支撑面积,可以使支撑部22更好地支撑电芯201。
在本申请的一些实施例中,支撑部22位于底板本体11的下方且与底板本体11固定连接。在一些可选的实施例中,托盘底板10粘接于边框20。进一步地,通过在托盘底板10和边框20之间打胶黏剂(例如结构胶)使支撑部22和底板本体11粘接连接,利用胶黏剂的厚度控制对边框20的尺寸公差进行吸收,同时托盘底板10具有较好的平面度,利用胶黏剂可以吸收公差的特点降低对托盘底板10及边框20的制造要求。并且,现有的托盘底板10和边框20焊接时,托盘底板10在焊接过程中容易变形,在后续电池包200组装过程中加大了对电芯201的尺寸要求,影响电池包200的装配效率。而在本申请中,通过将托盘底板10和边框20粘接连接,避免托盘底板10和边框20焊接连接,可以防止托盘底板10变形,在后续电池包200组装过程中减小了对电芯201的尺寸要求,提升了电池包200装配效率。
在本申请的一些实施例中,边框20构造为金属件,边框20可以由铝材料制成,边框20也可以由钢材料制成,但本申请不限于此,边框20也可以由其他与钢材料起到相同的金属材料制成,例如:边框20由钢材料制成,边框20可以由钢材料辊压形成,边框20也可以由钢材料挤出形成。其中,通过将边
框20设置为金属件,能够提高边框20的承重能力。
在本申请的一些实施例中,如图11所示,第一边梁和第二边梁中的至少一者包括与对应支撑部22相连的边梁本体231,例如:第一边梁包括与其对应支撑部22相连的边梁本体231,第二边梁包括与其对应支撑部22相连的边梁本体231,边梁本体231限定出空腔,空腔内具有连接板232,连接板232倾斜连接在空腔的顶壁233和空腔的底壁234之间,连接板232可以将空腔分隔为多个子腔235,多个子腔235在侧边梁23的宽度方向依次排布,当电池托盘100以图11中的方式放置时,侧边梁23的宽度方向是指图11中的左右方向。在一些可选的实施例中,如图11所示,从电池托盘100上方至下方方向,连接板232朝向远离安装空间21的方向倾斜延伸设置,连接板232将空腔分隔为两个子腔235,两个子腔235在侧边梁23的宽度方向依次排布,这样设置能够提升侧边梁23结构强度,可以提高侧边梁23的稳定性,从而可以提升侧边梁23支撑电芯201能力。在一些实施例中,侧边梁23的宽度方向可以与电池托盘100的宽度方向或者车辆2000的宽方向一致。在另一些实施例中,侧边梁23的宽度方向可以与电池托盘100的长度方向或者车辆2000的长方向一致。
并且,通过多个子腔235在侧边梁23的宽度方向依次排布,多个子腔235中远离电池托盘100的安装空间21的子腔235受到撞击时,例如:位于图11中左侧的子腔235受到撞击时,受到撞击的子腔235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。
在一些可选的实施例中,如图10和图11所示,空腔的远离安装空间21的第一侧壁236连接在空腔的顶壁233和空腔的底壁234之间,且第一侧壁236与连接板232连接。在一些可选的实施例中,如图11所示,第一侧壁236下端连接有朝向空腔内延伸的第一连接部238,第一侧壁236通过第一连接部238与空腔的底壁234及连接板232连接,其中,第一连接部238与空腔的底壁234固定连接,例如第一连接部238与空腔的底壁234焊接连接,如此设置能够进一步提升侧边梁23的结构强度,可以进一步提高侧边梁23的稳定性。
在一些可选的实施例中,如图10和图11所示,空腔的靠近安装空间21的第二侧壁237连接在空腔的顶壁233和空腔的底壁234之间,且第二侧壁237与连接板232连接。在一些可选的实施例中,如图11所示,第二侧壁237的上端连接有朝向空腔内延伸的第二连接部239,第二侧壁237通过第二连接部239与空腔的顶壁233及连接板232连接,其中,第二连接部239与空腔的顶壁233固定连接,例如,第二连接部239与空腔的顶壁233焊接连接,空腔的顶壁233、空腔的底壁234、第一侧壁236和第二侧壁237共同限定出空腔,这样设置能够进一步提升侧边梁23的结构强度,可以进一步提高侧边梁23的稳定性。
在一些可选的实施例中,如图10和图11所示,第二侧壁237的下端连接支撑部22,且第二侧壁237通过支撑部22与空腔的底壁234连接。进一步地,在侧边梁23的宽度方向,空腔的底壁234靠近安装空间21的一端延伸至支撑部22的下方,空腔的底壁234靠近安装空间21的端部与支撑部22靠近安装空间21的端部连接。在一些可选的实施例中,空腔的底壁234位于支撑部22下方的结构处设置有朝向支撑部22凸出的凸台结构2391,凸台结构2391与支撑部22连接,如此设置能够进一步提升侧边梁23的结构强度,可以进一步提高侧边梁23的稳定性。
在一些可选的实施例中,空腔的底壁234位于支撑部22下方的结构处设置有多个凸台结构2391,多个凸台结构2391在侧边梁23的宽度方向依次设置,多个凸台结构2391中的至少一个凸台结构2391位于受压区域112的下方,这样设置能够使凸台结构2391支撑电芯201,可以进一步提升边框20的承重能力。
在本申请的一些实施例中,如图5和图6所示,边框20连接有吊耳结构30,吊耳结构30设置有安装孔,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。
如图1-图15所示,根据本申请实施例的电池托盘100包括:密封结构13、托盘底板10和边框20。托盘底板10包括底板本体11和延伸部12,底板本体11限定出用于放置电芯201或电池模组的放置槽111,本申请以放置槽111放置电芯201为例进行说明,电芯201可以通过结构胶粘接于放置槽111内,放置槽的底壁113具有用于支撑电芯201的受压区域112,受压区域112是指电芯201安装于放置槽111
内时,在电池托盘100的高度方向,放置槽的底壁113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安装于放置槽111内时,电芯201与放置槽的底壁113的接触区域,接触区域包括电芯201与放置槽的底壁113直接接触的区域或者间接接触的区域,例如:当电芯201和放置槽的底壁113之间具有粘胶剂或者冷却结构时属于电芯201与放置槽的底壁113间接接触,当电芯201和放置槽的底壁113之间没有其他物体时电芯201与放置槽的底壁113直接接触,或者也可以理解为电芯201的重量直接作用在放置槽的底壁113的区域为受压区域112。其中,在电池托盘100的高度方向,放置槽的底壁113的正投影也即放置槽的底壁113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。
电芯201安装于电池托盘100内时,电芯201位于放置槽111的受压区域112内,延伸部12沿底板本体11的周向边缘延伸设置,进一步地,延伸部12构造为环型结构,具体地,延伸部12构造为闭环型结构,进一步地,延伸部12设有用于供紧固件(例如螺栓或螺钉)穿过的避让通孔122。
边框20限定出安装空间21,底板本体11安装于安装空间21中,延伸部12位于安装空间21外部且设于与边框20,进一步地,延伸部12通过紧固件设于与边框20。如图6、图8和图11所示,本申请以电池托盘100沿上下方向放置为例进行说明,底板本体11安装于安装空间21内后,延伸部12设置在安装空间21外部,在电池托盘100的上下方向,延伸部12与边框20对应设置,具体地,如图11所示,延伸部12位于边框20的上方,延伸部12与边框20正对设置,在电池托盘100的上下方向,延伸部12可以遮挡边框20的整个上表面。密封结构13用于密封避让通孔122。
其中,边框20设置有螺栓孔28,螺栓孔28为多个,多个螺栓孔28与多个避让通孔122一一对应设置,边框20内预埋有多个拉铆螺母,多个拉铆螺母与多个螺栓孔28一一对应设置,拉铆螺母穿过避让通孔122、螺栓孔28。电池包200包括盖体40,盖体40和托盘底板10共同限定出用于放置电芯201的放置腔41,且盖体40与边框20连接。进一步地,盖体40盖设于放置槽111的敞开端以限定出放置腔41,延伸部12夹设在盖体40和边框20之间,使用螺栓穿过盖体40、延伸部12的避让通孔122和边框20的螺栓孔28与拉铆螺母连接,从而将盖体40、托盘底板10和边框20装配在一起。螺栓穿过避让通孔122,通过密封结构13密封避让通孔122,能够提升电池托盘100密封性,可以避免液体从避让通孔122流入放置槽111内,防止造成电池包200短路,从而提升电池包200使用安全性,并且,托盘底板10将电芯201和边框20分隔开,即使边框20不密封也可以保证液体不会流入放置槽111内,降低了边框20密封性要求,降低边框20制造难度,提升边框20生产效率。
在一些可选的实施例中,托盘底板10构造为一体成型件,这样设置能够保证托盘底板10密封性,可以避免液体从托盘底板10流入放置槽111内,从而可以进一步提升电池包200使用安全性。
在本申请的一些实施例中,密封结构13设于延伸部12和边框20之间,且密封结构13与避让通孔122对应设置,其中,密封结构13可以与穿过盖体40、延伸部12的避让通孔122和边框20的螺栓孔28的螺栓接触遮挡避让通孔122,从而将密封避让通孔122。和/或密封结构13设置于避让通孔122内以密封避让通孔122。其中,密封结构13设于延伸部12和边框20之间时,紧固件穿过避让通孔122后,密封结构13可以与紧固件紧密贴合,且密封结构13覆盖避让通孔122,从而密封避让通孔122。密封结构13设于避让通孔122内时,密封结构13夹设在避让通孔122和紧固件之间,使避让通孔122和紧固件之间间隙密封,达到密封避让通孔122效果。例如:密封结构13设于延伸部12和边框20间和避让通孔122内。
在本申请的一些实施例中,如图11所示,延伸部12和边框20通过密封结构13密封连接,进一步地,密封结构13构造为密封胶,密封结构13也可以构造为橡胶件,但本申请不限于此,密封结构13也可以构造为与密封胶起到相同作用的密封件。密封结构13可以夹设在托盘底板10和边框20之间的整个空间内,密封结构13可以夹设在延伸部12和边框20之间的部分空间内,密封结构13可以围绕螺栓孔28和避让通孔122设置,进一步地,密封结构13可以伸入螺栓孔28和避让通孔122内,这样设置能够实现延伸部12和边框20之间密封连接,可以有效避免液体从边框20上的螺栓孔28流入放置腔41内。
进一步地,密封结构13为多个,多个密封结构13依次间隔开设置,也可以理解为,在托盘底板10
和边框20之间,多个密封结构13依次间隔开设置,通过多个密封结构13同时设置在托盘底板10和边框20之间,能够进一步提升电池托盘100密封性,可以进一步避免液体从边框20上的螺栓孔28流入放置腔41内,也可以进一步防止造成电池包200短路,从而进一步提升电池包200使用安全性。
在本申请的一些实施例中,如图11和图15所示,边框20具有朝向安装空间21内延伸的支撑部22,支撑部22用于支撑底板本体11,进一步地,支撑部22用于支撑受压区域112,支撑部22和底板本体11之间设有密封结构13,如此设置能够将支撑部22和底板本体11之间的间隙密封,可以防止液体从支撑部22和底板本体11之间的间隙进入托盘底板10和边框20之间。
其中,如图11所示,当电芯201安装于放置槽111内时,电芯201位于受压区域112内,通过支撑部22支撑受压区域112,电芯201的重量搭载在边框20上,边框20承载电芯201的大部分重量,托盘底板10承载电芯201的小部分重量,大大减轻托盘底板10的承重要求,托盘底板10可以使用强度更低、厚度更薄的材料制成,进一步地,托盘底板10设置为非金属件,进一步地,托盘底板10设置为绝缘件,使用轻质的非金属复合材料制成的托盘底板10即可,例如:轻质的非金属复合材料可以由树脂和玻璃纤维制成,树脂可以为环氧树脂或者聚氨脂,但本申请不限于此,轻质的非金属复合材料也可以由其他与树脂和玻璃纤维起到相同作用的复合材料制成,这样设置能够减小托盘底板10重量,有利于电池托盘100、电池包200的轻量化设计,也能够保证电池包200在电芯201热失控或外部火烧时的完整性。并且,现有托盘底板10由铝材料制成,本申请通过使用复合材料制成托盘底板10,能够降低托盘底板10生产成本,有利于降低电池托盘100、电池包200的生产成本。需要说明的是,由非金属复合材料制成的托盘底板10具有优异的电绝缘性能,当车辆2000发生严重的搁底事故时,电池包200不会出现拉弧等高压风险。
进一步地,托盘底板10采用轻质的非金属复合材料模压成型,在模压过程中托盘底板10因树脂熔融流动固化后形成良好的气密性,同时通过模具件成型可以保证托盘底板10具有良好的平面度及尺寸精度,保证托盘底板10密封功能。边框20可以通过金属拼焊成型,焊接成型后只需保证焊接结构强度及必要的产品平面度,拼焊效率高,提升了电池托盘100生产效率,且托盘底板10负责密封,不需进行焊缝打磨及气密性检测,没有焊接导致的密封失效风险。托盘底板10可以采用复合材料模压成型,托盘底板10生产效率高,模具精度高从而可以获得较高的平面度,降低电芯201的尺寸要求。
另外,现有电池托盘100未在产品结构上对承重和密封两个功能进行区分,在制造电池托盘100时需要同时考虑整体的承重和密封都需要满足要求,导致电池托盘100的制造效率及良品率低。而在本申请中,对承重和密封两个功能进行区分,边框20主要负责承重,托盘底板10主要负责电池托盘100的密封,提升了电池托盘100的制造效率及良品率低。
由此,通过托盘底板10和边框20配合,边框20承载电芯201的大部分重量,托盘底板10承载电芯201的小部分重量,托盘底板10主要承担密封作用,使用轻质的复合材料制成的托盘底板10即可,有利于电池托盘100、电池包200的轻量化设计以及成本降低,并且,托盘底板10和边框20装配在一起后,没有焊接导致电池托盘100密封失效风险,不需进行焊缝打磨及电池托盘100气密性检测,提升了电池托盘100生产效率。
在本申请的一些实施例中,如图6和图8所示,边框20包括侧边梁23、前端梁24和后端梁25,侧边梁23、前端梁24和后端梁25相连以形成安装空间21,侧边梁23、前端梁24和后端梁25相连包括直接连接和间接连接,例如:以侧边梁23和前端梁24连接为例进行说明,侧边梁23和前端梁24可以直接连接,侧边梁23和前端梁24也可以通过其他梁间接连接。侧边梁23和/或前端梁24和/或后端梁25具有支撑部22,也就是说,侧边梁23、前端梁24和后端梁25中的至少一个具有支撑部22。本申请以侧边梁23设有支撑部22为例进行说明。其中,侧边梁23的数量可以设置为两个,后端梁25和前端梁24的数量可以均设置为一个,当边框20以图8中的放置方式放置时,两个侧边梁23在图8中的左右方向间隔开设置,前端梁24、后端梁25均连接在两个侧边梁23之间,前端梁24和后端梁25在边框20的前后方向间隔开设置,从而使前端梁24、后端梁25和两个侧边梁23共同限定出安装空间21。并且,当电芯201沿图8中的左右方向延伸放置时,通过将支撑部22设置于侧边梁23,能够保证每个电芯201都被支撑部22支撑,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20主要用于承载电芯201重量,从而使支撑部22设置位置合理。
可以理解的,当电池托盘100安装于车辆2000上时,电池托盘100的宽度方向可以与车宽方向一致,电池托盘100的长度方向可以与车长方向一致。当然,电池托盘100的宽度方向也可以与车长方向一致,电池托盘100的长度方向可以与车宽方向一致。
在本申请的一些实施例中,如图11所示,支撑部22靠近侧边梁23的下端设置,也可以理解为,支撑部22靠近侧边梁23的远离托盘底板10的端部设置,底板本体11安装于安装空间21内后,通过将支撑部22靠近侧边梁23的远离托盘底板10的端部设置,能够保证支撑部22支撑在底板本体11下方,也能够保证底板本体11可安装于安装空间21内。
在本申请的一些实施例中,密封结构13构造为板状结构,这样设置能够提升密封结构13的表面平整度,可以使密封结构13与托盘底板10、密封结构13与边框20紧密贴合,从而保证托盘底板10和边框20之间密封性。
在本申请的一些实施例中,如图12、图13和图15所示,延伸部12面向边框20的表面设置有第一凸筋121,延伸部12的面向边框20的表面与第一凸筋121限定出第一容胶区,进一步地,第一凸筋121与延伸部12一体成型,或者第一凸筋121与延伸部12构造为分体件,例如:第一凸筋121与延伸部12一体成型,第一凸筋121与托盘底板10采用相同材料一体热压成型,这样设置能够避免额外增加零配件,降低成本,提高电池包200的组装效率。其中,密封结构13为结构胶时,装配边框20和托盘底板10过程中,先将结构胶涂在边框20表面,然后将托盘底板10的底板本体11安装于安装空间21内,延伸部12的第一凸筋121先与结构胶接触挤压结构胶,使结构胶流入第一容胶区,通过第一凸筋121挤压结构胶,能够使结构胶均匀地设置在延伸部12与边框20之间,可以使密封结构13各个区域厚度更加均匀,更好地密封避让通孔122,电芯201安装于放置槽111内后,可以保证电芯201摆放平稳。
在本申请的一些实施例中,如图12、图13和图15所示,多个避让通孔122在延伸部12的周向方向间隔开设置,进一步地,多个避让通孔122在延伸部12的延伸方向依次间隔开设置,多个避让通孔122中的至少相邻两个避让通孔122间设有第一凸筋121,例如:任意相邻两个避让通孔122间均设置有第一凸筋121,进一步地,相邻两个避让通孔122间设置至少一个第一凸筋121,通过多个第一凸筋121同时挤压结构胶,能够使结构胶更加均匀地设置在延伸部12与边框20之间,可以使密封结构13各个区域厚度更加均匀,电芯201安装于放置槽111内后,可以更好地保证电芯201摆放平稳。
在本申请的一些实施例中,延伸部12面向边框20的表面设有朝向边框20方向凸出的凸台,延伸部12的面向边框20的表面与凸台限定出第一容胶区,进一步地,凸台与延伸部12一体成型,或者凸台与延伸部12构造为分体件,例如:凸台与延伸部12一体成型,凸台与托盘底板10采用相同材料一体热压成型,凸台围绕避让通孔122布置,进一步地,凸台为多个,多个凸台与多个避让通孔122一一对应设置,其中,密封结构13为结构胶时,装配边框20和托盘底板10过程中,先将结构胶涂在边框20表面,然后将托盘底板10的底板本体11安装于安装空间21内,延伸部12的凸台先与结构胶接触挤压结构胶,使结构胶流入第一容胶区,通过凸台挤压结构胶,能够使结构胶均匀地设置在延伸部12与边框20之间,可以使密封结构13各个区域厚度更加均匀,电芯201安装于放置槽111内后,可以保证电芯201摆放平稳。
在本申请的一些实施例中,第一凸筋121凸出延伸部12表面的高度、凸台凸出延伸部12表面的高度均为H1,满足关系式:0.5mm≤H1≤1.5mm,延伸部12挤压结构胶后,如此设置能够保证密封结构13的厚度适宜。
在本申请的一些实施例中,如图12、图13和图15所示,底板本体11面向支撑部22的表面设有与支撑部22对应的第二凸筋114,底板本体11的面向支撑部12的表面与第二凸筋114限定出第二容胶区,边框20和托盘底板10装配在一起后,第二凸筋114可以支撑于支撑部22。进一步地,第二凸筋114设置有多个,其中,密封结构13为结构胶时,装配边框20和托盘底板10过程中,将结构胶涂在支撑部22的与底板本体11相对的表面,然后将底板本体11安装于安装空间21内,第二凸筋114先与结构胶接触挤压结构胶,使结构胶流入第二容胶区,通过第二凸筋114挤压结构胶,能够使结构胶均匀地设置在支撑部22与底板本体11之间,可以使密封结构13各个区域厚度更加均匀,电芯201安装于放置槽111内后,可以保证电芯201摆放平稳。
在本申请的一些实施例中,如图15所示,从边框20至安装空间21方向,第二凸筋114靠近安装空
间21的端部伸出于支撑部22。其中,当电池托盘100以图15中方式放置时,以位于右侧的侧边梁23为例进行说明,第二凸筋114的左端端部伸出支撑部22的左端端部,由于侧边梁23为主要承重件,需要严格确保整个密封结构13区域胶层厚度一致及稳定,因此通过第二凸筋114靠近安装空间21的端部伸出支撑部22,可以保证整个密封结构13区域胶层厚度一致及稳定。
在本申请的一些实施例中,如图11所示,当电池托盘100以图11中的放置方式放置时,在电池托盘100的高度方向,支撑部22的正投影与受压区域112的正投影具有重合区域,当电芯201放置在放置槽111内后,如此设置能够保证支撑部22对电芯201进行支撑,可以保证边框20主要用于承载电芯201重量。
在本申请的一些实施例中,放置槽的底壁113形成有受压区域112,也可以理解为,受压区域112设置在放置槽的底壁113,如图11所示,当电池托盘100以图11中的放置方式放置时,支撑部22位于底板本体11的下方,支撑部22支撑于放置槽的底壁113,这样设置能够保证支撑部22支撑在受压区域112下方,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20主要用于承载电芯201重量,从而使受压区域112设置位置合理。
在本申请的一些实施例中,如图8所示,边框20还包括支撑梁26,支撑梁26连接在两个侧边梁23之间,或者支撑梁26连接在前端梁24和后端梁25之间,或者支撑梁26连接在前端梁24和侧边梁23之间,或者支撑梁26连接在后端梁25和侧边梁23之间,这样设置能够提升边框20的结构强度,从而可以提升电池托盘100的结构强度。
在本申请的一些实施例中,如图5和图6所示,电池托盘100还包括膨胀梁27,膨胀梁27设置在托盘底板10远离边框20一侧,当电池托盘100以如图5和图6中方式放置时,膨胀梁27设置在托盘底板10上方,膨胀梁27通过螺栓安装于支撑梁26,电芯201安装于放置槽111内后,电芯201发生膨胀时,膨胀梁27可以对电芯201进行限位,提升电芯201使用安全性。
进一步地,支撑梁26设置为多个,多个支撑梁26沿侧边梁23的长度方向依次间隔开设置,侧边梁23的长度方向是指图6中的前后方向,膨胀梁27为多个,多个膨胀梁27沿侧边梁23的长度方向依次间隔开设置,多个膨胀梁27和多个支撑梁26一一对应设置,一个膨胀梁27通过螺栓安装于一个支撑梁26,从而可以将膨胀梁27稳固地安装于边框20。
在本申请的一些实施例中,如图5-图7、图11所示,当电池托盘100以图11中的放置方式放置时,放置槽111的上端敞开设置,电芯201从放置槽111的敞开端放入放置槽111内,从而实现电芯201放入放置槽111的技术效果。并且,延伸部12沿放置槽111的敞开端延伸设置,如图11所示,延伸部12与底板本体11的上端连接,底板本体11安装于安装空间21内后,这样设置能够使延伸部12设置在放置槽111外部,可以保证延伸部12在电池托盘100的上下方向与边框20对应设置,从而可以保证电池托盘100的密封。
在本申请的一些实施例中,如图8、图10和图11所示,支撑部22靠近托盘底板10的表面构造为平面,也就是说,如图11所示,支撑部22的上表面设置为平面,如此设置能够保证支撑部22与底板本体11的支撑面积,可以使支撑部22更好地支撑电芯201。
在本申请的一些实施例中,托盘底板10粘接于边框20。进一步地,通过在托盘底板10和边框20之间打胶黏剂(例如结构胶)使托盘底板10和边框20粘接连接,利用胶黏剂的厚度控制对边框20的尺寸公差进行吸收,同时托盘底板10具有较好的平面度,利用胶黏剂可以吸收公差的特点降低对托盘底板10及边框20的制造要求。并且,现有的托盘底板10和边框20焊接时,托盘底板10在焊接过程中容易变形,在后续电池包200组装过程中加大了对电芯201的尺寸要求,影响电池包200装配效率。而在本申请中,通过将托盘底板10和边框20粘接连接,避免托盘底板10和边框20焊接连接,可以防止托盘底板10变形,在后续电池包200组装过程中减小了对电芯201的尺寸要求,提升了电池包200装配效率。
在本申请的一些实施例中,托盘底板10构造为一体成型件,托盘底板10采用轻质的复合材料模压成型,在模压过程中托盘底板10因树脂熔融流动固化后形成良好的气密性,同时通过模具件成型可以保证托盘底板10具有良好的平面度及尺寸精度,保证托盘底板10密封功能。
在本申请的一些实施例中,边框20构造为金属件,边框20可以由铝材料制成,边框20也可以由钢材料制成,但本申请不限于此,边框20也可以由其他与钢材料起到相同的金属材料制成,例如:边框
20由钢材料制成,边框20可以由钢材料辊压形成,边框20也可以由钢材料挤出形成。其中,通过将边框20设置为金属件,能够提高边框20承重能力,可以降低边框20变形风险。并且,钢材料制成的边框20能够耐受1500℃以上的高温,保证了边框20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11所示,侧边梁23包括边梁本体231,边梁本体231限定出空腔,空腔内具有连接板232,连接板232倾斜连接在空腔的顶壁233和空腔的底壁234之间,连接板232可以将空腔分隔为多个子腔235,多个子腔235在侧边梁23的宽度方向依次排布,当电池托盘100以图11中的放置方式放置时,侧边梁23的宽度方向是指图11中的左右方向。进一步地,如图11所示,从电池托盘100上方至下方方向,连接板232朝向远离安装空间21的方向倾斜延伸设置,连接板232将空腔分隔为两个子腔235,两个子腔235在侧边梁23的宽度方向依次排布,这样设置能够提升侧边梁23结构强度,可以提高侧边梁23的稳定性,从而可以提升侧边梁23支撑电芯201能力,也可以进一步降低边框20变形风险。
并且,通过多个子腔235在侧边梁23的宽度方向依次排布,多个子腔235中远离电池托盘100的安装空间21的子腔235受到撞击时,例如:位于图11中左侧的子腔235受到撞击时,受到撞击的子腔25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。
进一步地,如图10和图11所示,空腔的远离安装空间21的第一侧壁236连接在空腔的顶壁233和空腔的底壁234之间,且第一侧壁236与连接板232连接。进一步地,如图11所示,第一侧壁236下端具有朝向空腔内延伸的第一连接部238,第一连接部238与空腔的底壁234、连接板232均连接,第一连接部238与空腔的底壁234焊接连接,如此设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
进一步地,如图10和图11所示,空腔的靠近安装空间21的第二侧壁237连接在空腔的顶壁233和空腔的底壁234之间,且第二侧壁237与连接板232连接。进一步地,如图11所示,第二侧壁237的上端具有朝向空腔内延伸的第二连接部239,第二连接部239与空腔的顶壁233、连接板232均连接。第二连接部239与空腔的顶壁233焊接连接,空腔的顶壁233、空腔的底壁234、第一侧壁236和第二侧壁237共同限定出空腔,这样设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
进一步地,如图10和图11所示,第二侧壁237的下端连接有支撑部22,且支撑部22与空腔的底壁234连接。进一步地,在侧边梁23的宽度方向,空腔的底壁234靠近安装空间21的一端延伸至支撑部22下方,空腔的底壁234靠近安装空间21的端部与支撑部22靠近安装空间21的端部连接,进一步地,空腔的底壁234位于支撑部22下方的结构处设置有朝向支撑部22凸出的凸台结构2391,凸台结构2391与支撑部22连接,如此设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
进一步地,空腔的底壁234位于支撑部22下方的结构处设置有多个凸台结构2391,多个凸台结构2391在侧边梁23的宽度方向依次设置,多个凸台结构2391中的至少一个凸台结构2391位于受压区域112下方,这样设置能够使凸台结构2391支撑电芯201,可以进一步提升边框20的承重能力,降低支撑部22变形风险。
下面参考图1-图16描述根据本申请实施例的电池包200,电池包200包括电芯201、电池托盘100和盖体40。
电池托盘100包括:托盘底板10和边框20。边框20限定出安装空间21,托盘底板10安装于安装空间21内。盖体40和托盘底板10密封连接且共同限定出用于放置电芯201的放置腔41。进一步地,盖体40与边框20连接,盖体40和托盘底板10之间可以通过密封胶密封,盖体40和托盘底板10之间也可以通过密封垫密封,盖体40和托盘底板10之间的密封方式不做具体限定,只要能将盖体40和托盘底板10之间密封即可。
其中,由于盖体40和托盘底板10密封连接,能够共同限定出密封的放置腔41,电芯201放置在放置腔41内后,托盘底板10能够将电芯201与边框20分隔开,电芯201处在一个完全密封、绝缘的放置腔41中,电芯201密封在放置腔41内,电池包200无漏电风险,提升了电池包200使用安全性,并且,
边框20的焊接缝隙对电池包200密封性无影响,不需进行电池托盘100气密性检测,提升了电池托盘100生产效率。
在本申请的一些实施例中,电池包200包括:密封件203,密封件203设于托盘底板10和盖体40之间,以实现盖体40和托盘底板10密封连接,从而可以将放置腔41密封。进一步地,托盘底板10可以设置为非金属件,进一步地,托盘底板10可以设置为绝缘件,托盘底板10具有绝缘密封作用,电池包200通过托盘底板10、盖体40和密封件203完成可靠密封,
由此,通过电池托盘100、盖体40和密封件203配合,电芯201放置在放置腔41内后,托盘底板10能够将电芯201与边框20分隔开,电芯201密封在放置腔41内,电池包200无漏电风险,提升了电池包200使用安全性,并且,边框20的焊接缝隙对电池包200密封性无影响,不需进行电池托盘100气密性检测,提升了电池托盘100生产效率。
在本申请的一些实施例中,如图1、图3和图7所示,托盘底板10包括底板本体11,底板本体11限定出用于放置电芯201或电池模组的放置槽111,本申请以放置槽111放置电芯201为例进行说明,盖体40盖设于放置槽111的敞开端以限定出用于放置电芯201的放置腔41,这样设置能够实现放置腔41的设置。
进一步地,托盘底板10还包括延伸部12,延伸部12沿底板本体11的周向边缘延伸设置,进一步地,延伸部12构造为环型结构,具体地,延伸部12构造为闭环型结构,延伸部12和盖体40间设有密封件203。进一步地,盖体40具有沿盖体40的周向边缘延伸的第二装配翻边42,延伸部12和第二装配翻边42间设有密封件203。其中,延伸部12夹设在盖体40的第二装配翻边42和边框20之间,使用螺栓穿过第二装配翻边42、密封件203、延伸部12和边框20将盖体40、密封件203、托盘底板10和边框20装配在一起,密封件203可以将放置腔41密封,电芯201放入放置腔41内后,能够将电芯201与边框20完全隔离开,电芯201处在一个完全绝缘的环境中,保证电池包200无漏电风险。需要说明的是,盖体40也可以设置为平板状结构,盖体40的边缘与延伸部12之间设置有密封件203,以实现盖体40和托盘底板10密封连接,本申请以盖体40设置有第二装配翻边42为例进行说明。
放置槽的底壁113具有用于支撑电芯201的受压区域112,受压区域112是指电芯201安装于放置槽111内时,在电池托盘100的高度方向,放置槽的底壁113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安装于放置槽111内时,电芯201与放置槽的底壁113的接触区域,接触区域包括电芯201与放置槽的底壁113直接接触的区域或者间接接触的区域,例如:当电芯201和放置槽的底壁113之间具有粘胶剂或者冷却结构时属于电芯201与放置槽的底壁113间接接触,当电芯201和放置槽的底壁113之间没有其他物体时电芯201与放置槽的底壁113直接接触,或者也可以理解为电芯201的重量直接作用在底板本体11的底壁的区域为受压区域112。其中,在电池托盘100的高度方向,放置槽的底壁113的正投影也即放置槽的底壁113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。
电芯201安装于电池托盘100内时,电芯201位于放置槽111的受压区域112内,底板本体11安装于安装空间21内,延伸部12位于安装空间21外部且设置于边框20。进一步地,如图3所示,在电池包200的高度方向,当电池包以图3中方向放置时,电池包200的高度方向是指图3中上下方向,延伸部12和盖体40均位于边框20的上方,且延伸部12和盖体40对应设置,进一步地,延伸部12和第二装配翻边42均位于边框20的上方,且延伸部12和第二装配翻边42对应(例如正对)设置,底板本体11安装于安装空间21内后,延伸部12设置在安装空间21外部,在电池托盘100的上下方向,延伸部12与边框20对应设置,具体地,如图11所示,延伸部12位于边框20的上方,延伸部12与边框20正对设置,在电池托盘100的上下方向,延伸部12可以遮挡边框20的整个上表面。
在本申请的一些实施例中,如图1和图3所示,电池包200还可以包括:压板202,进一步地,压板202通过紧固件与边框20连接,延伸部12、密封件203和盖体40夹设在压板202和边框20之间,进一步地,延伸部12、密封件203和第二装配翻边42夹设在压板202和边框20之间。其中,紧固件可以为螺栓,也可以为螺钉,例如:紧固件为螺栓,边框20内设置有拉铆螺母,使用螺栓穿过压板202、第二装配翻边42、密封件203、延伸部12和边框20,且螺栓与拉铆螺母连接,将压板202、盖体40、
托盘底板10和边框20装配在一起,通过设置压板202,压板202可以使整个密封件203受压均匀,保证放置腔41密封可靠。
在本申请的一些实施例中,延伸部12、密封件203、第二装配翻边42和压板202均构造为环型结构,进一步地,延伸部12、密封件203、第二装配翻边42和压板202均构造为闭环型结构,压板202、盖体40、托盘底板10和边框20装配在一起后,通过将延伸部12、密封件203、第二装配翻边42和压板202均构造为闭环型结构,能够在放置腔41周向对放置腔41密封,保证放置腔41密封性,从而使延伸部12、密封件203、第二装配翻边42和压板202结构设置合理。
在本申请的一些实施例中,如图1、图3、图7和图8所示,延伸部12、密封件203、盖体40、压板202和边框20均设有与紧固件配合的装配孔50,进一步地,延伸部12、密封件203、第二装配翻边42、压板202和边框20均设有与紧固件配合的装配孔50。压板202的装配孔50、第二装配翻边42的装配孔50、密封件203的装配孔50、延伸部12的装配孔50、边框20的装配孔50对应设置,紧固件穿过压板202的装配孔50、第二装配翻边42的装配孔50、密封件203的装配孔50、延伸部12的装配孔50、边框20的装配孔50与拉铆螺母连接,通过设置装配孔50,可以实现压板202、盖体40、托盘底板10和边框20装配。
在本申请的一些实施例中,密封件203设置为密封圈,密封圈的密封性能好,这样设置能够保证密封件203的密封性能,可以更好地密封延伸部12和第二装配翻边42之间间隙,从而可以提升放置腔41密封性。
在本申请的一些实施例中,边框20具有朝向安装空间21内延伸的支撑部22,支撑部22用于支撑托盘底板10的受压区域112。如图6、图8和图11所示,本申请以电池托盘100沿上下方向放置为例进行说明,其中,如图11所示,当电芯201安装于放置槽111内时,电芯201位于受压区域112内,支撑部22支撑受压区域112,电芯201的重量搭载在边框20上,边框20承载电芯201的大部分重量,托盘底板10不承载电芯201重量或只承载电芯201的小部分重量,大大减轻托盘底板10的承重要求,可以减小托盘底板10厚度,托盘底板10可以使用强度更低、厚度更薄的材料制成,进一步地,托盘底板10设置为非金属件,进一步地,托盘底板10设置为绝缘件,使用轻质的非金属复合材料制成的托盘底板10即可,例如:轻质的非金属复合材料可以由树脂和玻璃纤维制成,树脂可以为环氧树脂或者聚氨脂,但本申请不限于此,轻质的非金属复合材料也可以由其他与树脂和玻璃纤维起到相同作用的复合材料制成,这样设置能够减小托盘底板10重量,有利于电池托盘100、电池包200的轻量化设计,并且,现有托盘底板10由铝材料制成,本申请通过使用非金属复合材料制成托盘底板10,能够降低托盘底板10生产成本,有利于降低电池托盘100、电池包200的生产成本。需要说明的是,由非金属复合材料制成的托盘底板10具有优异的电绝缘性能,当车辆2000发生严重的搁底事故时,电池包200不会出现拉弧等高压风险。可以理解的,当电池托盘100安装于车辆2000上时,电池托盘100的高度可以与车辆2000的高度方向一致。
进一步地,托盘底板10构造为一体成型件,托盘底板10采用轻质的非金属复合材料模压成型,在模压过程中托盘底板10因树脂熔融流动固化后形成良好的气密性,同时通过模具件成型可以保证托盘底板10具有良好的平面度及尺寸精度,保证托盘底板10密封功能。边框20可以通过金属拼焊成型,焊接成型后只需保证焊接结构强度及必要的产品平面度,拼焊效率高,提升了电池托盘100生产效率,且托盘底板10负责密封,不需进行焊缝打磨及气密性检测,没有焊接导致的密封失效风险。托盘底板10可以采用复合材料模压成型,托盘底板10生产效率高,模具精度高从而可以获得较高的平面度,降低电芯201的尺寸要求。
另外,现有电池托盘100未在产品结构上对承重和密封两个功能进行区分,在制造电池托盘100时需要同时考虑整体的承重和密封都需要满足要求,导致电池托盘100的制造效率及良品率低。而在本申请中,对承重和密封两个功能进行区分,边框20主要负责承重,托盘底板10主要负责电池托盘100的密封,提升了电池托盘100的制造效率及良品率低。
由此,通过托盘底板10和边框20配合,边框20承载电芯201的大部分重量,托盘底板10承载电芯201的小部分重量,托盘底板10主要承担密封作用,可以减小托盘底板10厚度,使用轻质的复合材料制成的托盘底板10即可,有利于电池托盘100、电池包200的轻量化设计以及成本降低,并且,托盘
底板10和边框20装配在一起后,没有焊接导致电池托盘100密封失效风险,不需进行焊缝打磨及电池托盘100气密性检测,提升了电池托盘100生产效率。
在本申请的一些实施例中,如图11所示,当电池托盘100以图11中的放置方式放置时,在电池托盘100的高度方向,支撑部22的正投影与受压区域112的正投影具有重合区域,当电芯201放置在放置槽111内后,如此设置能够保证支撑部22对电芯201进行支撑,可以保证边框20主要用于承载电芯201重量。
在本申请的一些实施例中,放置槽的底壁113形成有受压区域112,也可以理解为,受压区域112设置在放置槽的底壁113,如图11所示,当电池托盘100以图11中的放置方式放置时,支撑部22位于底板本体11的下方,支撑部22支撑于放置槽的底壁113,这样设置能够保证支撑部22支撑在受压区域112下方,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20主要用于承载电芯201重量,从而使受压区域112设置位置合理。
在本申请的一些实施例中,如图6和图8所示,边框20包括侧边梁23、前端梁24和后端梁25,侧边梁23、前端梁24和后端梁25相连以形成安装空间21,侧边梁23、前端梁24和后端梁25相连包括直接连接和间接连接,例如:以侧边梁23和前端梁24连接为例进行说明,侧边梁23和前端梁24可以直接连接,侧边梁23和前端梁24也可以通过其他梁间接连接。侧边梁23具有支撑部22。其中,侧边梁23设置两个,后端梁25和前端梁24均设置一个,当边框20以图8中的放置方式放置时,两个侧边梁23在图8中的左右方向间隔开设置,前端梁24、后端梁25均连接在两个侧边梁23之间,前端梁24和后端梁25在边框20的前后方向间隔开设置,从而使前端梁24、后端梁25和两个侧边梁23共同限定出安装空间21。并且,当电芯201沿图8中的左右方向延伸放置时,通过将支撑部22设置于侧边梁23,能够保证每个电芯201都被支撑部22支撑,可以进一步保证支撑部22对电芯201进行支撑,可以进一步保证边框20主要用于承载电芯201重量,从而使支撑部22设置位置合理。可以理解的,当电池托盘100安装于车辆2000上时,电池托盘100的宽度方向可以与车宽方向一致,电池托盘100的长度方向可以与车长方向一致。当然,电池托盘100的宽度方向也可以与车长方向一致,电池托盘100的长度方向可以与车宽方向一致。
在本申请的一些实施例中,如图8所示,边框20还包括支撑梁26,支撑梁26连接在两个侧边梁23之间,或者支撑梁26连接在前端梁24和后端梁25之间,或者支撑梁26连接在前端梁24和侧边梁23之间,或者支撑梁26连接在后端梁25和侧边梁23之间,这样设置能够提升边框20的结构强度,从而可以提升电池托盘100的结构强度。
在本申请的一些实施例中,如图5和图6所示,电池托盘100还包括膨胀梁27,膨胀梁27设置在托盘底板10远离边框20一侧,当电池托盘100以如图5和图6中方式放置时,膨胀梁27设置在托盘底板10的上方,膨胀梁27通过螺栓安装于支撑梁26,电芯201安装于放置槽111内后,电芯201发生膨胀时,膨胀梁27可以对电芯201进行限位,提升电芯201使用安全性。
进一步地,支撑梁26设置为多个,多个支撑梁26可以沿侧边梁23的长度方向依次间隔开设置,侧边梁23的长度方向是指图6中的前后方向,多个支撑梁26也可以沿侧电池托盘100的宽度方向依次间隔开设置,电池托盘100的宽度方向是指图6中的左右方向,本申请以多个支撑梁26沿侧边梁23的长度方向依次间隔开设置为例进行说明,膨胀梁27为多个,多个膨胀梁27沿侧边梁23的长度方向依次间隔开设置,多个膨胀梁27和多个支撑梁26一一对应设置,一个膨胀梁27通过螺栓安装于一个支撑梁26,从而可以将膨胀梁27稳固地安装于边框20。
在本申请的一些实施例中,如图11所示,支撑部22靠近侧边梁23的下端设置,也可以理解为,支撑部22靠近侧边梁23的远离托盘底板10的端部设置,底板本体11安装于安装空间21内后,通过将支撑部22靠近侧边梁23的远离托盘底板10的端部设置,能够保证支撑部22支撑在底板本体11的下方,也能够保证底板本体11可安装于安装空间21内。
在本申请的一些实施例中,如图5-图7、图11所示,当电池托盘100以图11中的放置方式放置时,放置槽111的上端敞开设置,电芯201可以从放置槽111的敞开端放入放置槽111内。并且,延伸部12沿放置槽111的敞开端延伸设置,如图11所示,延伸部12与底板本体11的上端连接,底板本体11安装于安装空间21内后,这样设置能够使延伸部12设置在放置槽111外部,可以保证延伸部12在电池托
盘100的上下方向与边框20对应设置,从而可以保证电池托盘100的密封。
在本申请的一些实施例中,如图8、图10和图11所示,支撑部22靠近托盘底板10的表面构造为平面,也就是说,如图11所示,支撑部22的上表面设置为平面,如此设置能够保证支撑部22与底板本体11的支撑面积,可以使支撑部22更好地支撑电芯201。
在本申请的一些实施例中,支撑部22位于底板本体11的下方且与底板本体11固定连接。进一步地,托盘底板10粘接于边框20。进一步地,通过在托盘底板10和边框20之间打胶黏剂(例如结构胶)使托盘底板10和边框20粘接连接,利用胶黏剂的厚度控制对边框20的尺寸公差进行吸收,同时托盘底板10具有较好的平面度,利用胶黏剂可以吸收公差的特点降低对托盘底板10及边框20的制造要求。并且,现有的托盘底板10和边框20焊接时,托盘底板10在焊接过程中容易变形,在后续电池包200组装过程中加大了对电芯201的尺寸要求,影响电池包200装配效率。而在本申请中,通过将托盘底板10和边框20粘接连接,避免托盘底板10和边框20焊接连接,可以防止托盘底板10变形,在后续电池包200组装过程中减小了对电芯201的尺寸要求,提升了电池包200装配效率。
在本申请的一些实施例中,托盘底板10构造为一体成型件,托盘底板10采用轻质的复合材料模压成型,在模压过程中托盘底板10因树脂熔融流动固化后形成良好的气密性,同时通过模具件成型可以保证托盘底板10具有良好的平面度及尺寸精度,保证托盘底板10密封功能。
在本申请的一些实施例中,边框20构造为金属件,边框20可以由铝材料制成,边框20也可以由钢材料制成,但本申请不限于此,边框20也可以由其他与钢材料起到相同的金属材料制成,例如:边框20由钢材料制成,边框20可以由钢材料辊压形成,边框20也可以由钢材料挤出形成。其中,通过将边框20设置为金属件,能够提高边框20承重能力,可以降低边框20变形风险。并且,钢材料制成的边框20能够耐受1500℃以上的高温,保证了边框20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11所示,侧边梁23包括边梁本体231,边梁本体231限定出空腔,空腔内具有连接板232,连接板232倾斜连接在空腔的空腔的顶壁233和空腔的底壁234之间,连接板232可以将空腔分隔为多个子腔235,多个子腔235在侧边梁23的宽度方向依次排布,当电池托盘100以图11中的放置方式放置时,侧边梁23的宽度方向是指图11中的左右方向。进一步地,如图11所示,从电池托盘100上方至下方方向,连接板232朝向远离放置槽111的方向倾斜延伸设置,连接板232将空腔分隔为两个子腔235,两个子腔235在侧边梁23的宽度方向依次排布,这样设置能够提升侧边梁23结构强度,可以提高侧边梁23的稳定性,从而可以提升侧边梁23支撑电芯201能力,也可以进一步降低边框20变形风险。
并且,通过多个子腔235在侧边梁23的宽度方向依次排布,多个子腔235中远离电池托盘100的安装空间21(或放置槽111)的子腔235受到撞击时,例如:位于图11中左侧的子腔235受到撞击时,受到撞击的子腔235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。
进一步地,如图10和图11所示,空腔的远离安装空间21(或放置槽111)的第一侧壁236连接在空腔的顶壁233和空腔的底壁234之间,且第一侧壁236与连接板232连接。进一步地,如图11所示,第一侧壁236下端具有朝向空腔内延伸的第一连接部238,第一连接部238位于空腔的底壁234朝向空腔的顶壁233的一侧,第一侧壁236通过第一连接部238与空腔的底壁234、连接板232均连接,第一连接部238与空腔的底壁234焊接连接,如此设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
进一步地,如图10和图11所示,空腔的靠近安装空间21(或放置槽111)的第二侧壁237连接在空腔的顶壁233和空腔的底壁234之间,且第二侧壁237与连接板232连接。进一步地,如图11所示,第二侧壁237的上端具有朝向空腔内延伸的第二连接部239,第二连接部239位于空腔的顶壁233朝向空腔的底壁234的一侧,第二侧壁237通过第二连接部239与空腔的顶壁233、连接板232均连接。第二连接部239与空腔的顶壁233焊接连接,空腔的顶壁233、空腔的底壁234、第一侧壁236和第二侧壁237共同限定出空腔,这样设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
进一步地,如图10和图11所示,第二侧壁237的下端连接有支撑部22,且支撑部22与空腔的底
壁234连接。进一步地,在侧边梁23的宽度方向,空腔的底壁234具有延伸至支撑部22下方的结构加强部2341,结构加强部2341与支撑部22靠近托盘底板10的端部连接,也可以理解为,结构加强部2341延伸至支撑部22下方,结构加强部2341与支撑部22靠近安装空间21的端部连接,进一步地,结构加强部2341设置有朝向支撑部22凸出的凸台结构2391,凸台结构2391与支撑部22连接,如此设置能够进一步提升侧边梁23结构强度,可以进一步提高侧边梁23的稳定性。
在一些实施例中,侧边梁23的高度方向与电池托盘100的高度方向一致,侧边梁23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,侧边梁23的高度方向可以与车辆2000的高度方向一致,侧边梁23的宽度方向可以与车长方向或车宽方向一致。进一步地,边结构加强部2341设置有多个凸台结构2391,多个凸台结构2391在侧边梁23的宽度方向依次设置,多个凸台结构2391中的至少一个凸台结构2391位于受压区域112下方,这样设置能够使凸台结构2391支撑电芯201,可以进一步提升边框20的承重能力,降低支撑部22变形风险。
下面,参考附图,描述根据本申请实施例的托盘底板10。
如图17和图18所示,托盘底板10包括底板本体11,底板本体11限定出放置槽111,放置槽111用于容纳电芯201,放置槽111的底面适于通过第一胶接件与电芯201胶接固定,以保证电芯201稳定设于放置槽111。
托盘底板10还包括第一支撑凸起117,第一支撑凸起117设于放置槽111的底面,且第一支撑凸起117凸出于放置槽111的底面设置,第一支撑凸起117与放置槽111的底面共同限定出第三容胶区11a,则第一支撑凸起117的侧壁参与限定第三容胶区11a的侧壁,第三容胶区11a用于容纳第一胶接件,第一支撑凸起117用于支撑电芯201。
可见,当托盘底板10用于电池包200时,第一支撑凸起117可以支撑电芯201的底部,第一支撑凸起117设于电芯201和放置槽111的底面之间,第一胶接件也设在电芯201和放置槽111的底面之间,且第一胶接件将电芯201的底部与放置槽111的底面固定相连;则第一胶接件设于第一支撑凸起117的边沿处,第一胶接件的与电芯201胶接的表面与第一支撑凸起117的支撑电芯201的表面可以基本处于同一平面,使得第一胶接件的厚度与第一支撑凸起117的高度相一致,则第一支撑凸起117可以起到限制第一胶接件的厚度的作用,从而可以通过调整第一支撑凸起117的高度来调整第一胶接件的厚度,保证第一胶接件的胶接强度,进而保证托盘底板10与电芯201胶接可靠。
其中,第一支撑凸起117和底板本体11为一体件,则托盘底板10与电芯201组装过程中,无需人员在放置槽111的底面预先粘贴限胶条,则无需额外增加零部件,降低成本,同时避免了后期人工粘贴限胶条时可能存在贴错的问题,节省了第一支撑凸起117的人工操作工序,提升了托盘底板10的加工效率,且简化了托盘底板10与电芯201的组装工序,提升了托盘底板10与电芯201的组装效率,同时保证了第一支撑凸起117与底板本体11之间的连接强度。
根据本申请实施例的托盘底板10,通过在放置槽111的底面设置第一支撑凸起117,并使得第一支撑凸起117凸出于放置槽111的底面,且第一支撑凸起117与放置槽111的底面共同限定出第三容胶区11a,第三容胶区11a用于容纳第一胶接件,而第一支撑凸起117与底板本体11为一体件,无需人工另外单独设置第一支撑凸起117,提升了托盘底板10的加工效率,且简化了托盘底板10与电芯201的组装工序,提升了托盘底板10与电芯201的组装效率。
可以理解的是,第一支撑凸起117的横截面形状可以根据实际需求具体设置。
可选地,第一支撑凸起117和底板本体11为热压一体件,第一支撑凸起117的材料与底板本体11的材料相同。
在一些实施例中,如图17和图18所示,多个沿第一方向(例如,图17中的AA’方向)间隔设置的第一支撑凸起117构成凸起组18,凸起组18的数量为多个,且多个凸起组18沿第二方向(例如,图17中的BB’方向)间隔设置,第一方向与第二方向垂直,则放置槽111底面的多个第一支撑凸起117可以沿第二方向和第一方向大致呈多排多列布置,简化了多个第一支撑凸起117的排布方式,方便了第一支撑凸起117的加工,同时每组凸起组18中任意相邻两个第一支撑凸起117之间、以及每组凸起组18中邻近底板本体11边沿的第一支撑凸起117与底板本体11边沿之间可以分别限定出容胶子槽11b,容胶子槽11b容纳第一胶接件的一部分,则每组凸起组18可以对应多个容胶子槽11b,任意相邻两个容
胶子槽11b连通,使得任意一个容胶子槽11b内的结构胶可以直接或间接流动至其余任意一个容胶子槽11b内,降低了对打胶位置的要求,也就是说,结构胶可以打至任意容胶子槽11b内,通过结构胶的流动性,可以使得整个放置槽111底面对应的第三容胶区11a充满结构胶,同样在拆解电芯201过程中,解胶剂可以打至选取的容胶子槽11b内,通过解胶剂的流动性,可以溶解整个第一胶接件,从而将电芯201和托盘底板10顺利拆分。需要说明的是,第一方向和第二方向中的一者可以为电池托盘100的长度方向,另一者可以为电池托盘100的宽度方向。
其中,托盘底板10用于电池包200时,电芯201为多个,且多个电芯201沿第二方向间隔设置,则在拆解电芯201过程中,可以将解胶剂灌入相邻两个电芯201之间的间隔,即解胶剂从电芯201的极柱方向灌入,能更好地完成解胶。
可以理解的是,凸起组18的多个第一支撑凸起117可以等间隔设置或不等间隔设置,多个凸起组18的第一支撑凸起117的数量可以相等或不等;例如,在图17的示例中,至少一组凸起组18包括三个第一支撑凸起117,至少一组凸起组18包括四个第一支撑凸起117。
在一些实施例中,如图17和图18所示,相邻两个凸起组18的第一支撑凸起117沿第一方向的投影部分重合,也就是说,相邻两个凸起组18中、其中一个凸起组18的至少一个第一支撑凸起117沿第一方向的投影的一部分与另一个凸起组18的至少一个第一支撑凸起117沿第一方向的投影的一部分重合,便于实现多个凸起组18沿第一方向的投影连续延伸,对于单个电芯201来说,有利于提升支撑单个电芯201的第一支撑凸起117的数量,提升电芯201的安装稳定性;同时,由于相邻两个凸起组18的第一支撑凸起117沿第一方向的投影部分重合,则其中一个凸起组18的至少一个第一支撑凸起117与另一个凸起组18的至少一个第一支撑凸起117沿第一方向间隔设置,提升了相邻两个凸起组18对应的容胶子槽11b之间的连通截面积,从而提升了相邻两组凸起组18对应的容胶子槽11b之间的连通性,有利于使得结构胶快速充满第三容胶区11a、使得解胶剂快速熔接溶解第一胶接件。
在一些实施例中,如图19所示,第一支撑凸起117的高度为h1,即第一支撑凸起117的顶面与放置槽111的底面之间的距离为h1,或者说第一支撑凸起117的背离放置槽111的底面的一侧表面与放置槽111的底面之间的距离为h1,0.5mm≤h1≤1.5mm,便于保证第三容胶区11a具有足够的容胶空间,从而保证第一胶接件的胶接强度,同时方便第一支撑凸起117的加工。
在一些实施例中,托盘底板10为绝缘材料件,使得托盘底板10具有良好电绝缘性,即使电池包200的冷却液泄漏等,可以避免托盘底板10与电芯201之间出现高压拉弧风险,保证电池包200正常使用;而且托盘底板10为一体成型件,节省了托盘底板10各部分之间的连接工序,有利于提升托盘底板10的加工效率,同时无需在托盘底板10的各部分上加工连接结构等,有利于简化托盘底板10的结构,降低成本,而且便于保证托盘底板10各部分之间的连接强度,以便保证托盘底板10的整体结构强度。
可以理解的是,当托盘底板10为一体成型件时,托盘底板10的加工方式可以根据实际需求具体设置;例如,托盘底板10可以通过模压成型方式形成为模压一体件。
可选地,托盘底板10为复合材料件,在保证托盘底板10电绝缘性的同时,便于保证托盘底板10的结构强度,以使托盘底板10稳定承载电芯201。
在一些实施例中,如图17、图20-图22所示,底板本体11包括底板1111和侧板1112,侧板1112围绕底板1111设置,且侧板1112与底板1111共同限定出放置槽111,侧板1112可以大致形成为环形结构,底板1111和侧板1112可以分别对电芯201起到一定限位作用,便于保证电芯201的稳定安装。
可见,底板1111的顶面形成为放置槽111的底面,而底板1111的底面设有第二支撑凸起115,第二支撑凸起115与上述实施例中的第二凸筋114为相同的结构件,则第一支撑凸起117和第二支撑凸起115分别设于底板1111的厚度两侧表面,使得第一支撑凸起117和第二支撑凸起115位于底板1111的厚度异侧;底板1111的底面适于通过第二胶接件与边框20胶接固定,以保证底板1111与边框20固定牢靠;第二支撑凸起115与底板1111的底面共同限定出第四容胶区,则第二支撑凸起115的侧壁参与限定第四容胶区的侧壁,第四容胶区用于容纳第二胶接件,第二支撑凸起115用于与边框20止抵配合。
例如,当托盘底板10用于电池托盘100时,第二支撑凸起115可以搭接在边框20的顶面,第二支撑凸起115设于底板1111的底面和边框20之间,第二胶接件也设在底板1111的底面和边框20之间,且第二胶接件将底板1111的底面与边框20固定相连,则第二胶接件的与边框20胶接的表面与第二支撑
凸起115的止抵边框20的表面可以基本处于同一平面,使得第二胶接件的厚度与第二支撑凸起115的高度相一致,则第二支撑凸起115可以起到限制第二胶接件的厚度的作用,从而可以通过调整第二支撑凸起115的高度来调整第二胶接件的厚度,保证第二胶接件的胶接强度,进而保证底板1111和边框20胶接可靠。
可选地,在图20-图22的示例中,第二支撑凸起115与底板1111为一体件,进一步提升了托盘底板10的加工效率,简化了托盘底板10与边框20的组装工序,提升了托盘底板10与边框20的组装效率。例如,第二支撑凸起115和底板1111为热压一体件,第二支撑凸起115的材料与底板1111的材料相同。
如图20-图24所示,底板本体11还包括延伸部12,延伸部12设于侧板1112的边沿处,且延伸部12围绕侧板1112设置,则延伸部12可以大致形成为环形结构;延伸部12的底面设有第三支撑凸起116,第三支撑凸起116与上述实施例中的第一凸筋121为相同的结构件,延伸部12的底面适于通过第三胶接件与边框20胶接固定,以保证延伸部12与边框20固定牢靠;第三支撑凸起116与延伸部12的底面共同限定出第五容胶区,则第三支撑凸起116的侧壁参与限定第五容胶区的侧壁,第五容胶区用于容纳第三胶接件,第三支撑凸起116用于与边框20止抵配合。
例如,当托盘底板10用于电池托盘100时,第三支撑凸起116可以搭接在边框20,第三支撑凸起116设于延伸部12的底面和边框20之间,第三胶接件也设在延伸部12的底面和边框20之间,且第三胶接件将延伸部12的底面与边框20固定相连,则第三胶接件的与边框20胶接的表面与第三支撑凸起116的止抵边框20的表面可以基本处于同一平面,使得第三胶接件的厚度与第三支撑凸起116的高度相一致,则第三支撑凸起116可以起到限制第三胶接件的厚度的作用,从而可以通过调整第三支撑凸起116的高度来调整第三胶接件的厚度,保证第三胶接件的胶接强度,进而保证延伸部12和边框20胶接可靠。
可选地,第三支撑凸起116与延伸部12为一体件,进一步提升了托盘底板10的加工效率,简化了托盘底板10与边框20的组装工序,提升了托盘底板10与边框20的组装效率。例如,第三支撑凸起116和延伸部12为热压一体件,第三支撑凸起116的材料与延伸部12的材料相同。
在一些实施例中,如图20-图24所示,第二支撑凸起115为多个,且多个第二支撑凸起115分别设在底板1111在第一方向上的两侧边缘处,则底板1111在第一方向上的每侧边缘处分别设有至少一个第二支撑凸起115,边框20支撑底板1111在第一方向上的两侧边缘,以有效保证边框20对电芯201的稳定承载,有利于降低底板本体11的承载需求,同时有利于简化边框20的结构。
在一些实施例中,如图17、图20和图22所示,延伸部12形成有多个避让通孔112b,避让通孔112b与上述实施例中的避让通孔122为相同的部件,多个避让通孔112b沿底板本体11的周边间隔设置,则多个避让通孔112b围绕底板本体11设置,任意相邻两个避让通孔112b之间设有至少一个第三支撑凸起116,以便于保证第三支撑凸起116对第三胶接件的厚度的有效限制,从而有利于提升第三胶接件的厚度均匀性,保证第三胶接件胶接强度的均衡。
其中,相邻两个避让通孔112b之间设有一个或多个第三支撑凸起116,则对于延伸部12而言,其中相邻两个避让通孔112b之间的第三支撑凸起116的数量与其余任意相邻两个避让通孔112b之间的第三支撑凸起116的数量相等或不等;例如,在图20的示例中,任意相邻两个避让通孔112b之间设有一个第三支撑凸起116。
可以理解的是,托盘底板10应用于电池托盘100中时,托盘底板10与边框20固定相连,边框20通过紧固件实现与电池包200的上盖的连接,从而对电芯201形成保护,例如托盘底板10的顶侧设有顶盖,紧固件用于将顶盖与边框20固定相连,紧固件穿设于避让通孔112b,避让通孔112b可以对紧固件实现良好的避让。
在图17的示例中,延伸部12包括多个延伸段1121,多个延伸段1121首尾依次相连以使延伸部12形成为多边形环,每个延伸段1121上形成有多个避让通孔112b,每个延伸段1121上的多个通孔120可以沿延伸段1121的长度方向间隔设置。
在一些实施例中,如图20-图22所示,至少一个第三支撑凸起116沿延伸部12的宽度方向延伸为长条形,且第三支撑凸起116的长度大于避让通孔112b的直径,便于使得第三支撑凸起116将相邻两个避让通孔112b完全隔开以更好地限制第三胶接件的厚度。
在一些实施例中,如图20-图22所示,至少一个第三支撑凸起116沿延伸部12的宽度方向延伸为
长条形,第三支撑凸起116的长度大于等于延伸部12宽度的一半,且第三支撑凸起116的长度小于延伸部12的宽度,便于提升第三支撑凸起116对整个第三胶接件厚度的限制作用。
在一些实施例中,如图21和图24所示,第二支撑凸起115的高度为h2,即第二支撑凸起115的底面与底板1111的底面之间的距离为h2,或者说第二支撑凸起13的背离底板1111的底面的一侧表面与底板1111的底面之间的距离为h2,0.5mm≤h2≤1.5mm,便于保证第四容胶区具有足够的容胶空间,从而保证第二胶接件的胶接强度,同时方便第二支撑凸起115的加工。
在一些实施例中,如图21所示,第三支撑凸起116的高度为h3,即第三支撑凸起116的底面与延伸部12的底面之间的距离为h3,或者说第三支撑凸起116的背离延伸部12的底面的一侧表面与延伸部12的底面之间的距离为h3,0.5mm≤h3≤1.5mm,便于保证第五容胶区具有足够的容胶空间,从而保证第三胶接件的胶接强度,同时方便第三支撑凸起116的加工。
在一些实施例中,第二支撑凸起115的高度为h2,第三支撑凸起116的高度为h3,0.5mm≤h2≤1.5mm,0.5mm≤h3≤1.5mm。
需要说明的是,在本申请的描述中,“和/或”的含义为,包括三个并列的方案,以“A和/或B”为例,包括A方案,或B方案,或A和B同时满足的方案。
根据本申请第二方面实施例的电池托盘100,如图23和图24所示,包括托盘底板10和边框20,托盘底板10为根据本申请上述第一方面实施例的托盘底板10,边框20围绕托盘底板10设置,且边框20与托盘底板10固定相连。
根据本申请实施例的电池托盘100,通过采用上述的托盘底板10,有利于提升电池托盘100的加工效率。
例如,在图23和图24的示例中,边框20支撑于托盘底板10的底部,且边框20位于放置槽111外,以便于实现边框20对电芯201的间接稳定承载。
在一些实施例中,如图24所示,底板本体11包括底板1111和侧板1112,侧板1112围绕底板1111设置且侧板1112与底板1111共同限定出放置槽111,底板1111的底面设有第二支撑凸起115,底板1111的底面通过第二胶接件与边框20胶接固定,第二支撑凸起115与底板1111的底面共同限定出第四容胶区,第四容胶区容纳第二胶接件,第二支撑凸起115与边框20止抵配合,其中,第二支撑凸起115朝向放置槽111的中心延伸至至少与边框20的内端边沿齐平,即w≥0,以便于保证整个第二胶接件的厚度的一致性,从而保证第二胶接件的胶接强度,保证底板1111与边框20胶接可靠,进而使得边框20支撑底板1111的部分可以作为电芯201的主要承重部分。
在一些实施例中,侧板1112与边框20通过第四胶接件胶接固定,以进一步保证托盘底板10与边框20连接牢固。
在一些实施例中,如图23和图24所示,底板本体11还包括延伸部12,延伸部12设于侧板1112的边沿处,且延伸部12围绕侧板1112设置;边框20围绕侧板1112设置,则边框20可以大致形成为环形结构,且边框20与延伸部12固定相连,则便于保证边框20与底板本体11之间具有足够的连接面积,从而保证第一边框201与底板本体11连接可靠。
需要说明的是,在本申请的描述中,“环形”当作广义理解,即不限于“圆环形”,例如还可以是“多边形环”等等。例如,在图23和图25的示例中,边框20、侧板1112和延伸部12分别大致形成为多边形环,边框20包括多条首尾依次相连的边梁,边梁与延伸部12的对应边(例如,本申请所述的对应延伸段1121)固定。
在一些实施例中,如图24和图27所示,边梁包括第一梁体211和第二梁体212,第一梁体211与上述实施例中的边梁本体231为相同的部件,第二梁体212与上述实施例中的支撑部22为相同的部件,第一梁体211与延伸部12固定相连;第二梁体212设于第一梁体211的内侧,第二梁体212与底板1111固定相连。
例如,第一梁体211与延伸部12的底面通过第三胶接件胶接固定,则延伸部12和第一梁体211均无需开设连接孔,简化了第一梁体211和延伸部12的加工工序。由此,保证了边梁与底板本体11之间具有较大的胶接面积,有效保证了边框20与底盘本体11之间的连接强度。
例如,第二梁体212与底板1111的底面通过第二胶接件胶接固定,第二梁体212与第二支撑凸起
115止抵配合,则第二梁体212可以间接承载电芯201,以有效保证电芯201安装可靠,同时降低了底板本体11的承载需求,有利于降低底板本体11的设置要求,降低电池托盘100的成本。
可选地,当边梁包括第一梁体211和第二梁体212时,第一梁体211和第二梁体212为一体成型件。
可以理解的是,在本申请中,多个边梁的结构可以相同或不同;例如,多个边梁的结构相同时,每个边梁分别包括第一梁体211和第二梁体212;又例如,多个边梁的结构不同时,至少一个边梁包括第一梁体211和第二梁体212,至少一个边梁包括第一梁体211、而不包括第二梁体212。
根据本申请第三方面实施例的电池包200,包括电芯201和电池托盘100,电池托盘100为根据本申请上述第二方面实施例的电池托盘100,放置槽111容纳电芯201,放置槽111的底面与电芯201胶接固定。
根据本申请实施例的电池包200,通过采用上述的电池托盘100,可以提升电池包200的组装效率。
在一些实施例中,如图25-图27所示,电芯201的数量为多个,且多个电芯201沿第二方向依次设置,每个电芯201的长度沿第一方向延伸,每个电芯201的底部支撑有至少三个第一支撑凸起117,上述至少三个第一支撑凸起117可以沿第一方向间隔设置,第一方向与第二方向垂直,以保证电芯201摆放平稳,同时电芯201与放置槽111底面之间的第一胶接件的厚度较为均衡,从而保证电芯201安装牢固。
在一些实施例中,如图25所示,用于支撑同一个电芯201的多个第一支撑凸起117中,在第一方向上位于两端的两个第一支撑凸起117与电芯201的对应端的距离相等,有利于进一步提升电芯201放置的平稳性,使得多个第一支撑凸起117稳定支撑电芯201。
例如,以第一方向为前后方向为例进行说明,与一个电芯201对应的多个第一支撑凸起117沿前后方向间隔设置,该多个第一支撑凸起117中,最前侧的第一支撑凸起117与该电芯201的前端之间的距离为L1,最后侧的第一支撑凸起117与该电芯201的后端之间的距离为L2,L2=L1。
例如,电池包200还包括膨胀梁27,膨胀梁27通过高强度等级螺栓(10.9级以上)穿过底板本体11上的孔与边框20紧固连接。
如图1-图11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40。电池托盘100为上述实施例的电池托盘100,盖体40和托盘底板10共同限定出用于放置电芯201的放置腔41,且盖体40与边框20连接。进一步地,盖体40盖设于放置槽111的敞开端以限定出放置腔41,延伸部12夹设在盖体40和边框20之间,使用螺栓穿过盖体40、延伸部12和边框20将盖体40、托盘底板10和边框20装配在一起。进一步地,延伸部12和盖体40之间夹设有密封件203(例如密封圈),密封件203可以将放置腔41密封,盖体40与托盘底板10限定出一个密封的绝缘空腔(即放置腔41),电芯201放入放置腔41内后,能够将电芯201与边框20完全隔离开,电芯201处在一个完全绝缘的环境中,电池包200无漏电风险。
在本申请的一些实施例中,如图1所示,电池包200还可以包括:压板202,压板202构造为闭环形结构,盖体40、密封件203和延伸部12夹设在压板202和边框20之间,使用螺栓穿过压板202、盖体40、延伸部12和边框20将压板202、盖体40、托盘底板10和边框20装配在一起,压板202可以使整个密封件203受压均匀,保证放置腔41密封可靠。
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,电池包200的边框20承载电芯201的大部分重量,托盘底板10只承载电芯201的小部分重量,托盘底板10主要承担密封作用,使用轻质的复合材料制成的托盘底板10即可,有利于电池托盘100、电池包200、车辆2000的轻量化设计以及成本降低,并且,托盘底板10和边框20装配在一起后,没有焊接导致电池托盘100密封失效风险,不需进行焊缝打磨及电池托盘100气密性检测,提升了电池托盘100、车辆2000生产效率。同时,由复合材料制成的托盘底板10具有优异的电绝缘性能,当车辆2000发生严重的搁底事故时,电池包200不会出现拉弧等高压风险,提升车辆2000安全性。
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 (45)
- 一种电池托盘(100),其中,包括:托盘底板(10),所述托盘底板(10)包括底板本体(11),所述底板本体(11)限定出用于放置电芯(201)的放置槽(111),所述放置槽(111)的底壁(113)具有用于支撑电芯(201)的受压区域(112);边框(20),所述底板本体(11)安装于所述边框(20),所述边框(20)具有支撑部(22),所述支撑部(22)用于支撑所述底板本体(11),在所述电池托盘(100)的高度方向,所述支撑部(22)的正投影与所述受压区域(112)的正投影具有重合区域。
- 根据权利要求1所述的电池托盘(100),其中,所述托盘底板(10)还包括沿所述底板本体(11)的外周缘延伸的延伸部(12),在所述电池托盘(100)的高度方向,所述延伸部(12)位于所述边框(20)的上方且设于所述边框(20)。
- 根据权利要求1或2所述的电池托盘(100),其中,所述边框(20)包括第一边梁、第二边梁、第三边梁和第四边梁,所述第一边梁和所述第二边梁沿第一方向相对设置,所述第三边梁和所述第四边梁沿第二方向相对设置,所述第一边梁、所述第二边梁、所述第三边梁和所述第四边梁相连以形成安装空间(21),所述底板本体(11)安装于所述安装空间(21)中,所述第一边梁和/或所述第二边梁设有所述支撑部(22),所述第一方向和所述第二方向中的一者为所述电池托盘(100)的长度方向,另一者为所述电池托盘(100)的宽度方向。
- 根据权利要求3所述的电池托盘(100),其中,所述第一边梁的所述支撑部(22)靠近所述第一边梁的下端设置,和/或所述第二边梁的所述支撑部(22)靠近所述第二边梁的下端设置。
- 根据权利要求2所述的电池托盘(100),其中,所述放置槽(111)的上端敞开设置,所述延伸部(12)沿所述放置槽(111)的敞开端周向延伸设置。
- 根据权利要求1至5中任一项所述的电池托盘(100),其中,所述支撑部(22)靠近所述托盘底板(10)的表面构造为平面。
- 根据权利要求1至6中任一项所述的电池托盘(100),其中,所述支撑部(22)位于所述底板本体(11)下方且与所述底板本体(11)固定连接。
- 根据权利要求1至7中任一项所述的电池托盘(100),其中,所述托盘底板(10)构造为一体成型件。
- 根据权利要求3所述的电池托盘(100),其中,所述第一边梁和所述第二边梁中的至少一者包括与对应支撑部(22)相连的边梁本体(231),所述边梁本体(231)限定出空腔,所述空腔内设有连接板(232),所述连接板(232)倾斜连接在所述空腔的顶壁(233)和底壁(234)之间以将所述空腔分隔为多个子腔(235)。
- 根据权利要求9所述的电池托盘(100),其中,所述空腔的远离所述安装空间(21)的第一侧壁(236)连接在所述空腔的顶壁(233)和底壁(234)之间,且所述第一侧壁(236)与所述连接板(232)连接;所述空腔的靠近所述安装空间(21)的第二侧壁(237)连接在所述空腔的所述顶壁(233)和所述底壁(234)之间,且所述第二侧壁(237)与所述连接板(232)连接。
- 根据权利要求10所述的电池托盘(100),其中,所述第一侧壁(236)的下端连接有朝向所述空腔内延伸的第一连接部(238),所述第一侧壁(236)通过所述第一连接部(238)与所述空腔的所述底壁(234)及所述连接板(232)连接,且所述第一连接部(238)与所述空腔的所述底壁(234)固定连接;所述第二侧壁(237)的上端连接有朝向所述空腔内延伸的第二连接部(239),所述第二侧壁(237)通过所述第二连接部(239)与所述空腔的所述顶壁(233)及所述连接板(232)连接,且,所述第二连接部(239)与所述空腔的顶壁(233)固定连接;所述空腔的顶壁(233)、所述空腔的底壁(234)、所述第一侧壁(236)和所述第二侧壁(237)共同限定出所述空腔。
- 根据权利要求10所述的电池托盘(100),其中,所述第二侧壁(237)的下端连接所述支撑部(22),且所述第二侧壁(237)通过所述支撑部(22)与所述空腔的所述底壁(234)连接。
- 根据权利要求1至12任一项所述的电池托盘(100),其中,所述边框(20)为金属件,所述托盘底板(10)为绝缘件。
- 根据权利要求2所述的电池托盘(100),其中,还包括:密封结构(13),所述边框(20)限定出安装空间(21),所述底板本体(11)安装于所述安装空间(21)中,所述延伸部(12)位于所述安装空间(21)外部,所述延伸部(12)设有用于供紧固件穿过的避让通孔(122),所述密封结构(13)用于密封所述避让通孔(122)。
- 根据权利要求14所述的电池托盘(100),其中,所述密封结构(13)设于所述延伸部(12)和所述边框(20)之间且与所述避让通孔(122)对应;和/或所述密封结构(13)设于所述避让通孔(122)内以密封所述避让通孔(122)。
- 根据权利要求14所述的电池托盘(100),其中,所述延伸部(12)和所述边框(20)通过密封结构(13)密封连接。
- 根据权利要求14至16中任一项所述的电池托盘(100),其中,所述密封结构(13)为多个,多个所述密封结构(13)依次间隔开。
- 根据权利要求14至17中任一项所述的电池托盘(100),其中,所述支撑部(22)朝向所述安装空间(21)内延伸,所述支撑部(22)和所述底板本体(11)间设有所述密封结构(13)。
- 根据权利要求14至18中任一项所述的电池托盘(100),其中,所述边框(20)包括侧边梁(23)、前端梁(24)和后端梁(25),所述侧边梁(23)、所述前端梁(24)和所述后端梁(25)相连以形成所述安装空间(21),所述侧边梁(23)和/或所述前端梁(24)和/或所述后端梁(25)具有所述支撑部(22)。
- 根据权利要求19所述的电池托盘(100),其中,所述支撑部(22)靠近所述侧边梁(23)的下端设置。
- 根据权利要求14至20中任一项所述的电池托盘(100),其中,所述延伸部(12)面向所述边框(20)的表面设有第一凸筋(121),所述延伸部(12)的面向所述边框(20)的表面与所述第一凸筋(121)限定出第一容胶区。
- 根据权利要求21所述的电池托盘(100),其中,所述延伸部(12)设有多个所述避让通孔(122),所述多个避让通孔(122)在所述延伸部(12)的周向方向间隔开,所述多个避让通孔(122)中的至少相邻两个所述避让通孔(122)间设有所述第一凸筋(121)。
- 根据权利要求14所述的电池托盘(100),其中,所述延伸部(12)面向所述边框(20)的表面设有朝向所述边框(20)方向凸出的凸台,所述延伸部(12)的面向所述边框(20)的表面与所述凸台限定出第一容胶区,所述凸台围绕所述避让通孔(122)布置。
- 根据权利要求14所述的电池托盘(100),其中,所述底板本体(11)面向所述支撑部(22)的表面设有与所述支撑部(22)对应的第二凸筋(114),所述底板本体(11)的面向所述支撑部(22)的表面与所述第二凸筋(114)限定出第二容胶区,所述第二凸筋(114)止抵所述支撑部(22)。
- 根据权利要求24所述的电池托盘(100),其中,从所述边框(20)至所述安装空间(21)方向,所述第二凸筋(114)靠近所述安装空间(21)的端部伸出于所述支撑部(22)。
- 根据权利要求1至25中任一项所述的电池托盘(100),其中,所述放置槽(111)的底壁(113)适于通过第一胶接件与所述电芯(201)胶接固定,所述托盘底板(10)还包括第一支撑凸起(117),所述第一支撑凸起(117)设于所述放置槽(111)的底壁(113)且凸出于所述放置槽(111)的底壁(113)设置,所述第一支撑凸起(117)与所述放置槽(111)的底壁(113)共同限定出第三容胶区(11a),所述第三容胶区(11a)用于容纳所述第一胶接件,所述第一支撑凸起(117)用于支撑所述电芯(201),且所述第一支撑凸起(117)和所述底板本体(11)为一体件。
- 根据权利要求26所述的电池托盘(100),其中,多个沿第一方向间隔设置的第一支撑凸起(117)构成凸起组(18),所述凸起组(18)的数量为多个,且多个所述凸起组(18)沿第二方向间隔设置,所述第二方向与所述第一方向垂直。
- 根据权利要求27所述的电池托盘(100),其中,相邻两个所述凸起组(18)的所述第一支撑凸起(117)沿所述第一方向的投影部分重合。
- 根据权利要求26至28中任一项所述的电池托盘(100),其中,所述第一支撑凸起(117)的高度为h1,0.5mm≤h1≤1.5mm。
- 根据权利要求26至29中任一项所述的电池托盘(100),其中,所述底板本体(11)包括:底板(1111)和侧板(1112),所述侧板(1112)围绕所述底板(1111)设置且所述侧板(1112)与所述底板(1111)共同限定出所述放置槽(111),所述底板(1111)的底面设有第二支撑凸起(115),所述底板(1111)的底面适于通过第二胶接件与边框(20)胶接固定,所述第二支撑凸起(115)与所述底板(1111)的底面共同限定出第四容胶区,所述第四容胶区用于容纳第二胶接件,所述第二支撑凸起(115)用于与所述边框(20)止抵配合;所述托盘底板(10)的延伸部(12)设于所述侧板(1112)的边沿处且围绕所述侧板(1112)设置,所述延伸部(12)的底面设有第三支撑凸起(116),所述延伸部(12)的底面适于通过第三胶接件与所述边框(20)胶接固定,所述第三支撑凸起(116)与所述延伸部(12)的底面共同限定出第五容胶区,所述第五容胶区用于容纳第三胶接件,所述第三支撑凸起(116)用于与所述边框(20)止抵配合。
- 根据权利要求30所述的电池托盘(100),其中,所述第二支撑凸起(115)为多个,且多个所述第二支撑凸起(115)分别设在所述底板(1111)在第一方向上的两侧边缘处。
- 根据权利要求30所述的电池托盘(100),其中,所述延伸部(12)形成有多个避让通孔(112b),多个所述避让通孔(112b)沿所述底板本体(11)的周边间隔设置,任意相邻两个所述避让通孔(112b)之间设有至少一个所述第三支撑凸起(116)。
- 根据权利要求30所述的电池托盘(100),其中,所述第二支撑凸起(115)的高度为h2,0.5mm≤h2≤1.5mm;和/或,所述第三支撑凸起(116)的高度为h3,0.5mm≤h3≤1.5mm。
- 根据权利要求30所述的电池托盘(100),其中,所述第二支撑凸起(115)朝向所述放置槽(111)的中心延伸至至少与所述边框(20)的内端边沿齐平。
- 一种电池包(200),其中,包括:电芯(201);电池托盘(100),所述电池托盘(100)为根据权利要求1-34中任一项所述的电池托盘(100);盖体(40),所述盖体(40)和所述托盘底板(10)共同限定出用于放置所述电芯(201)的放置腔(41),且所述盖体(40)与所述边框(20)连接。
- 根据权利要求35所述的电池包(200),其中,所述托盘底板(10)安装于所述电池托盘(100)的安装空间(21)内,所述盖体(40)和所述托盘底板(10)密封连接。
- 根据权利要求36所述的电池包(200),其中,还包括:密封件(203),所述密封件(203)设于所述托盘底板(10)和所述盖体(40)之间。
- 根据权利要求35所述的电池包(200),其中,所述盖体(40)盖设于所述放置槽(111)的敞开端以限定出所述放置腔(41)。
- 根据权利要求37所述的电池包(200),其中,所述托盘底板(10)的延伸部(12)和所述盖体(40)间设有所述密封件(203)。
- 根据权利要求39所述的电池包(200),其中,在所述电池包(200)高度方向,所述延伸部(12)和所述盖体(40)均位于所述边框(20)的上方,且所述延伸部(12)和所述盖体(40)对应设置。
- 根据权利要求39所述的电池包(200),其中,还包括:压板(202),所述延伸部(12)、所述密封件(203)和所述盖体(40)夹设在所述压板(202)和所述边框(20)之间。
- 根据权利要求41所述的电池包(200),其中,所述延伸部(12)、所述密封件(203)和所述压板(202)均构造为环型结构。
- 根据权利要求41所述的电池包(200),其中,所述压板(202)通过紧固件与所述边框(20)连接。
- 根据权利要求43所述的电池包(200),其中,所述延伸部(12)、所述密封件(203)、所述盖体(40)、所述压板(202)和所述边框(20)均设有与所述紧固件配合的装配孔(50)。
- 一种车辆(2000),其中,包括根据权利要求35-44中任一项所述的电池包(200)。
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