Battery tray, battery pack, and vehicle

Abstract

A battery tray, a battery pack, and a vehicle. The battery tray comprises a base plate (1), a side beam structure (2), and at least one first separator (7), wherein the first separator (7) is located in a mounting cavity and divides the mounting cavity into at least two accommodating cavities (5) for placing battery modules (3); a separator body (71) of the first separator (7) is connected to the side beam structure (2), the separator body (71) being provided with a notch, and an insulating assembly (72) of the first separator (7) being used for sealing the notch; and at least one of the side beam structure (2) and first separator (7) corresponding to each accommodating cavity (5) is provided with a first exhaust port and an exhaust channel (21) which is in communication with the first exhaust port.

Description

Battery trays, battery packs and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202321988416.X filed on July 26, 2023, entitled “Battery Tray, Battery Pack and Vehicle,” the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of battery packs, and in particular to a battery tray, a battery pack and a vehicle. Background Art

[0004] In the prior art, a battery pack is typically made up of multiple cells placed in a battery tray. When a cell experiences thermal runaway, it releases high-temperature gas, which then flows through the gap between the cell and the tray into the pack and then out of the pack.

[0005] However, since the direction of high-temperature gas ejection is not fixed, it is difficult to guide the high-temperature gas to a specific location, which can easily cause it to accumulate in the battery pack, causing the battery pack body to short-circuit and arc, and easily cause the battery pack body to rupture.

[0006] Summary of the Invention

[0007] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a battery tray that can be vented in time, thereby ensuring safety in use.

[0008] The present application further proposes a battery pack having the above-mentioned battery tray.

[0009] The present application further proposes a vehicle having the above-mentioned battery pack.

[0010] According to the present application, the battery tray includes: a base plate, which is used to support the battery module; a side beam structure, which is arranged on the peripheral side of the base plate and together with the base plate to form an installation cavity; and at least one first partition, which is located in the installation cavity and connected to the side beam structure, and divides the installation cavity into at least two accommodating cavities for placing the battery modules; the first partition includes a partition body and an insulating component, the partition body is connected to the side beam structure, the partition body is provided with a notch, and the insulating component is used to seal the notch and for the connection component connected to the battery module to pass through; a first exhaust port and an exhaust channel connected to the first exhaust port are provided on at least one of the side beam structure and the first partition corresponding to each of the accommodating cavities, and the first exhaust port is used to introduce the gas in the accommodating cavity into the exhaust channel.

[0011] According to the battery tray of the present application, a side beam structure is provided to cooperate with the first partition, wherein the first partition includes a partition body connected to the side beam structure, and an insulating component for allowing a connection component connected to the battery module to pass through, thereby dividing the bottom plate into a plurality of accommodating cavities, and each accommodating cavity is exhausted through a first exhaust port, a second exhaust port and an exhaust channel connected thereto. Once a battery module in a certain accommodating cavity has thermal runaway, the high-temperature gas generated by the battery module can enter the exhaust channel through the first exhaust port and be discharged through the second exhaust port, so that the high-temperature gas will not accumulate inside the battery tray, thereby improving the exhaust effect of the battery tray. In addition, due to the blocking and heat-insulating effects of the first partition, the high-temperature gas can be spatially isolated and thermally isolated, reducing heat diffusion, thereby preventing the battery modules located in other accommodating cavities from being affected by thermal runaway, effectively preventing the high-temperature gas from causing secondary damage to the battery module or affecting other battery modules.

[0012] In some examples of the present application, the battery tray further includes a top plate, which is sealed to the side beam structure and the first partition so that the accommodating cavity forms a sealed cavity.

[0013] In some examples of the present application, the insulating component is provided with an escape area, which is used for allowing a connecting component connected to the battery module to pass through and is suitable for sealing the connecting component within the escape area.

[0014] In some examples of the present application, the insulating assembly includes a first insulating member and a second insulating member, the first insulating member is arranged on the separator body, and the second insulating member is arranged on the first insulating member; wherein a first avoidance area is arranged between the first insulating member and the second insulating member.

[0015] In some examples of the present application, the insulating component further includes a limiting member, a second avoidance area is provided on the second insulating component, and the limiting member is arranged on the second insulating component and is used to limit the connecting component in the second avoidance area.

[0016] In some examples of the present application, a sealant is provided in the first insulating member, and the sealant is used to fill the gap between the connecting component and the first insulating member in the first avoidance area.

[0017] In some examples of the present application, a sealant is provided in the second insulating member, and the sealant is used to fill the gap between the connecting component and the second insulating member in the second avoidance area.

[0018] In some examples of the present application, the insulating assembly includes a first insulating member and a second insulating member, the first insulating member is arranged on the separator body, and the second insulating member is arranged on the first insulating member; wherein the avoidance area is arranged on at least one of the first insulating member and the second insulating member.

[0019] In some examples of the present application, the first exhaust port is provided with a one-way valve, and the one-way valve is used to introduce the gas in the accommodating chamber into the exhaust channel.

[0020] In some examples of the present application, the battery tray further includes a second partition, and the first partition and the second partition are arranged crosswise.

[0021] According to the battery pack of the present application, it includes a battery module and the above-mentioned battery tray, and the battery module is arranged in the accommodating cavity. Since the battery pack of the present application is provided with the battery tray of the above-mentioned embodiment, the battery pack is safe.

[0022] The vehicle according to the present application includes the above-mentioned battery pack, so the vehicle safety is better.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the structure of a battery tray according to an embodiment of the present application;

[0025] FIG2 is a second structural schematic diagram of a battery tray provided in an embodiment of the present application;

[0026] FIG3 is a third structural schematic diagram of a battery tray provided in an embodiment of the present application;

[0027] FIG4 is an enlarged view of portion A in FIG1 ;

[0028] FIG5 is a schematic structural diagram of a first separator provided in an embodiment of the present application;

[0029] FIG6 is a fourth structural diagram of a battery tray provided in an embodiment of the present application;

[0030] FIG. 7 is a fifth structural diagram of a battery tray provided in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. Bottom plate; 2. Side beam structure; 21. Exhaust channel; 22. First side beam; 23. Second side beam; 3. Battery module; 4. One-way valve; 5. Accommodating chamber; 6. Explosion-proof valve; 7. First partition; 71. Partition body; 72. Insulating assembly; 721. First insulating member; 722. Second insulating member; 7221. Through hole; 723. First avoidance area; 724. Second avoidance area; 725. Limiting member; 8. Second partition. DETAILED DESCRIPTION

[0032] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0033] Referring to Figures 1-7, the present application provides a battery tray, comprising: a base plate 1 for supporting battery modules 3; a side beam structure 2 disposed around the base plate 1 and enclosing a mounting cavity with the base plate 1; and at least one first partition 7, located within the mounting cavity and connected to the side beam structure 2, dividing the mounting cavity into at least two accommodating cavities 5 for accommodating battery modules 3. The first partition 7 comprises a partition body 71 and an insulating assembly 72. The partition body 71 is connected to the side beam structure 2 and has a notch. The insulating assembly 72 is used to block the notch and allow a connection assembly connected to the battery module to pass through. Each accommodating cavity 5 is provided with a first exhaust port and an exhaust channel 21 connected to the first exhaust port on at least one of the side beam structure 2 and the first partition 7. The first exhaust port is used to direct gas within the accommodating cavity 5 into the exhaust channel 21. Furthermore, the insulating assembly blocks the notch provided by the partition so that gas can only be exhausted through the first exhaust port, thereby accelerating exhaust within the battery pack and improving exhaust efficiency.

[0034] 1 , the battery tray includes a bottom plate 1 , a side beam structure 2 , and at least one first partition 7 .

[0035] Referring to Figure 1, a base plate 1 is disposed at the bottom of the battery tray and is used to support the battery modules 3. Side beam structures 2 are disposed around the perimeter of base plate 1. For example, side beam structures 2 are disposed at the edges of base plate 1 and are generally annular. Together, side beam structures 2 and base plate 1 form a mounting cavity.

[0036] The base plate 1 is formed from an extruded metal material, such as aluminum, and is welded to the side beam structure 2 by, for example, circumferential arc welding or laser welding. The side beam structure 2 can be, for example, rectangular or circular. This application does not limit the specific shape of the side beam structure 2, as long as the side beam structure 2 and the base plate 1 cooperate to form a receiving cavity.

[0037] Referring to Figures 1 and 2, at least one first partition 7 is provided. When multiple first partitions 7 are provided, the multiple first partitions 7 are, for example, arranged in parallel. The first partition 7 is disposed within the accommodating cavity and is fixedly connected to the side beam structure 2. The first partition 7 is used to divide the installation cavity into at least two accommodating cavities 5, each of which is used to accommodate a battery module 3.

[0038] In some embodiments, the first separator 7 includes a separator body 71 and an insulating assembly 72. Referring to Figures 1 and 2, the end of the separator body 71 near the side beam structure 2 is fixedly connected to the side beam structure 2, and the side of the separator body 71 near the bottom plate 1 abuts the bottom plate 1. Alternatively, the side of the separator body 71 near the bottom plate 1 can be fixedly connected to the bottom plate 1 by welding, bonding, or other methods.

[0039] The separator body 71 is provided with a notch, and the insulating assembly 72 is disposed in the notch of the separator body 71. The insulating assembly 72 is used to block the notch and allow the connection assembly to pass through to connect to the battery module. In other words, the insulating assembly 72 blocks the notch of the separator body 71, preventing gas in the accommodating cavity on both sides of the first separator 7 from flowing through the connection between the separator body 71 and the insulating assembly 72. Furthermore, the connection assembly passes through the insulating assembly 72 to connect to the battery module 3.

[0040] In one embodiment of the present application, the separator body 71 is made of a metal material, such as steel, which helps to improve the structural strength of the separator body 71. The insulating component 72 is made of, for example, a rubber material, which helps to provide insulation protection at the electrical connection points of the battery module 3. This also helps to reduce the weight of the separator device, and thus the weight of the battery tray, achieving a lightweight assembled battery pack. In addition, making the insulating component 72 of a rubber material also helps to improve the sealing effect between the separator body 71 and the insulating component 72.

[0041] Referring to Figure 4 , each accommodating cavity 5 is provided with a battery module 3. The battery modules 3 on either side of the first separator 7 are connected via a connecting assembly. For example, the connecting assembly is connected to the terminals of the battery modules 3. The connecting assembly may be a busbar or wire made of a conductive metal material such as copper, aluminum, iron, nickel, copper alloy, or aluminum alloy.

[0042] The insulating component 72 is used for the connection component connected to the battery module to pass through. It should be noted that the connection component can be set between the battery modules, and of course, it can also be set between the battery modules and the distribution box.

[0043] At least one of the side beam structure 2 and the first partition 7 corresponding to each accommodating cavity 5 is provided with a first exhaust port and an exhaust channel 21 connected to the first exhaust port. The first exhaust port is used to direct the gas within the accommodating cavity 5 into the exhaust channel 21. In other words, each accommodating cavity 5 is provided with at least one first exhaust port. In addition, in other embodiments of the present application, at least one of the side beam structure 2 and the first partition 7 may also be provided with a second exhaust port. The second exhaust port is used to communicate with the exhaust channel and discharge the gas within the exhaust channel 21.

[0044] In one embodiment of the present application, referring to Figures 1 to 3, an exhaust channel 21 is formed inside the side beam structure 2, and a first exhaust port is provided on the side of the side beam structure 2 close to the first partition 7. The first exhaust port connects the accommodating cavity 5 with the exhaust channel 21. The first exhaust port is used to introduce the gas in the accommodating cavity 5 into the exhaust channel 21. In some embodiments, a second exhaust port may also be provided on the side of the side beam structure away from the first partition 7, and the second exhaust port is used to discharge the gas in the exhaust channel 21.

[0045] In one embodiment of the present application, an exhaust channel 21 is formed within the first partition 7. A first exhaust port is provided on the side of the first partition 7 facing the interior of the accommodating chamber 5, and a second exhaust port communicating with the outside is provided on the side of the first partition 7 facing away from the accommodating chamber 5. The first exhaust port is used to direct gas within the accommodating chamber 5 into the exhaust channel 21. The second exhaust port is used to exhaust gas within the exhaust channel 21.

[0046] In one embodiment of the present application, a communicating exhaust passage is formed within the first partition 7 and the side beam structure 2. A first exhaust port is provided on the side of at least one of the first partition 7 and the side beam structure 2 facing the interior of the accommodating cavity 5, and a second exhaust port is provided on the side facing away from the accommodating cavity 5, communicating with the exterior. The first exhaust port is used to direct gas within the accommodating cavity 5 into the exhaust passage 21. The second exhaust port is used to discharge gas from the exhaust passage 21.

[0047] In the present application, the side beam structure 2 is provided in conjunction with the first partition 7, wherein the first partition 7 includes a partition body 71 connected to the side beam structure 2 and an insulating component 72 for passing a connection component connected to the battery module, thereby dividing the bottom plate 1 into a plurality of accommodating cavities 5. Each accommodating cavity 5 is exhausted through the first exhaust port, the second exhaust port, and the exhaust channel 21 connected thereto.

[0048] In the present application, once a battery module in a certain accommodating cavity 5 experiences thermal runaway, the high-temperature gas generated by the battery module can enter the exhaust channel 21 through the first exhaust port and be discharged through the second exhaust port, so that the high-temperature gas will not accumulate inside the battery tray, thereby improving the exhaust effect of the battery tray.

[0049] In addition, due to the blocking and heat-insulating effect of the first partition 7, the high-temperature gas can be spatially and thermally isolated, reducing heat diffusion, thereby preventing the battery modules located in other accommodating cavities 5 from being affected by thermal runaway, and effectively preventing the high-temperature gas from causing secondary damage to the battery modules or affecting other battery modules.

[0050] In the embodiment of the present application, a top plate is further included, which is sealed to the side beam structure 2 and the first partition 7 so that the accommodating cavity 5 forms a sealed cavity.

[0051] The battery tray also includes a top plate, which is positioned opposite the bottom plate 1. The side beam structure 2 and the first partition 7 are positioned between the top plate and the bottom plate 1. The top plate covers the receiving cavity 5. The top plate is sealed to the side beam structure 2 and the first partition 7 on a side facing away from the bottom plate 1. The sealing connection is achieved, for example, by welding or bonding, so that the receiving cavity 5 forms a sealed cavity.

[0052] By providing a top plate covering the accommodating cavity 5, the accommodating cavity 5 forms a sealed cavity. If a battery module in a accommodating cavity 5 experiences thermal runaway, the gas generated by the battery module can directly enter the exhaust channel 21 through the first exhaust port provided in the corresponding accommodating cavity, and then be discharged through the second exhaust port, further improving the exhaust efficiency.

[0053] In addition, during the exhaust process, each accommodating cavity 5 is independent of each other, and the exhaust process in the accommodating cavity 5 where the battery module experiencing thermal runaway is located will not affect the battery modules in other accommodating cavities 5, thereby improving the safety of the battery module 3.

[0054] In an embodiment of the present application, the insulating assembly is provided with an escape area, which is used for allowing a connecting assembly connected to the battery module to pass through and is suitable for sealing the connecting assembly within the escape area.

[0055] As shown in FIG4 , the insulating assembly is made of, for example, a rubber material. A clearance zone is provided on the insulating assembly. The clearance zone is, for example, provided at the location of the battery cells of the battery module. The clearance zone extends through the insulating assembly.

[0056] The avoidance area is used for the connection components connected to the battery modules to pass through. At least part of the connection components are located in the avoidance area, and the two ends of the connector extend to the two sides of the insulation component 72 to connect the battery modules 3 located on both sides of the insulation component 72.

[0057] The escape zone is also suitable for sealing the connection assembly within the escape zone, thereby sealing the gap between the connection assembly and the escape zone, thereby improving the sealing performance of the insulation assembly 72 as a whole, that is, further improving the sealing performance of the accommodating cavity 5, and thus improving the exhaust effect of the battery tray.

[0058] The insulating component is provided as one, for example. Of course, two or more insulating components may also be provided. The avoidance zone is provided as one, for example. Of course, two or more avoidance zones may also be provided.

[0059] It should be noted that, in this application, the number of insulating components and avoidance zones does not need to correspond one to one. That is, when there is one insulating component, there can be one avoidance zone, or two or more avoidance zones.

[0060] In some embodiments, the size of the avoidance zone is adjusted according to the size of the connecting component to reduce the gap when the connecting component is located in the avoidance zone, thereby improving the sealing effect of the accommodating cavity 5.

[0061] In an embodiment of the present application, the insulating assembly 72 includes a first insulating member 721 and a second insulating member 722. The first insulating member 721 is arranged on the separator body 71, and the second insulating member 722 is arranged on the first insulating member 721; wherein a first avoidance area 723 is arranged between the first insulating member 721 and the second insulating member 722.

[0062] 4-5 , the insulating assembly 72 includes a first insulating member 721 and a second insulating member 722 that are stacked. The first insulating member 721 is disposed on the separator body 71 . The first insulating member 721 and the separator body 71 are fixedly connected, for example, by snapping.

[0063] The second insulating member 722 is disposed on a side of the first insulating member 721 away from the separator body 71, that is, the second insulating member 722 is disposed above the first insulating member 721, as shown in Figure 4. In some embodiments, the second insulating member 722 is connected to the first insulating member 721 via a snap-fit ​​connection. Referring to Figure 5, a protrusion is provided on the side of the first insulating member 721 near the second insulating member 722, and a slot is provided on the second insulating member 722 that snaps into engagement with the protrusion, thereby achieving a snap-fit ​​connection between the first insulating member 721 and the second insulating member 722.

[0064] 4 , a first avoidance area 723 is provided between the first insulating member 721 and the second insulating member 722 .

[0065] Of course, the avoidance area may be formed only on the first insulating member 721 , the avoidance area may be formed only on the second insulating member 722 , or the avoidance area may be formed on both the first insulating member 721 and the second insulating member 722 .

[0066] In the present application, by configuring the insulating assembly 72 to include a first insulating member 721 and a second insulating member 722, that is, by configuring the insulating assembly 72 to be separate, during assembly, the connection assembly and the battery module 3 can be assembled first, and then the battery module connected by the connection assembly can be placed as a whole on the first insulating member 721, and then the second insulating member 722 can be installed. This improves the installation convenience of the insulating assembly 72, reduces the processing difficulty of the connection assembly, and improves the processing efficiency.

[0067] In the present application, the connection components include, for example, busbars and wires made of conductive metal materials such as copper, aluminum, iron, nickel, copper alloy, aluminum alloy, etc.

[0068] The present application sets a first insulating member 721 and a second insulating member 72, and forms an avoidance zone between the first insulating member 721 and the second insulating member 722, which is conducive to achieving partitioned insulation protection for various connecting components between adjacent battery modules 3, and is conducive to setting the shape of the avoidance zone according to the specific shape of the connecting component to reduce the gap after the connecting component is placed in the avoidance zone, thereby improving the sealing effect of the accommodating cavity 5 and further improving the exhaust effect.

[0069] In the embodiment of the present application, the insulating component 72 further includes a limiting member 725 . A second avoidance area 724 is provided on the second insulating component 722 . The limiting member 725 is disposed on the second insulating component 722 and is used to limit the connecting component within the second avoidance area 724 .

[0070] 4-5 , a second avoidance area 724 and a limiting member 725 are provided on a side of the second insulating member 722 away from the first insulating member 721 . The second avoidance area 724 is open on a side away from the first insulating member 721 .

[0071] In some embodiments, the limiting member 725 covers the second avoidance area 724 and is fixedly connected to the second insulating member 722 . The limiting member 725 is fixedly connected to the second insulating member 722 via a snap-fit ​​structure, for example, as shown in FIG. 6 .

[0072] The second avoidance area 724 is provided with connection components such as wires connected to the battery module 3. The limiting member 725 is used to limit the connection components in the second avoidance area 724 to limit the connection components in the second avoidance area 724, as shown in Figure 7.

[0073] In the present application, a limiting member 725 is provided on the side of the second insulating member 722 away from the first insulating member 721, and the limiting member 725 cooperates with the second avoidance area 724 to limit the connecting component in the second avoidance area 724, thereby further improving the limiting effect and insulation effect of the insulating component 72 on the connecting component.

[0074] In this embodiment of the present application, sealant is disposed within the first insulating member 721 to fill the gap between the connecting assembly and the first insulating member 721 within the first avoidance zone 723. Alternatively, the sealant is disposed within the gap between the connecting assembly and the second insulating member within the second avoidance zone. In other words, sealant is disposed within at least one of the first and second avoidance zones. The placement of the sealant is determined based on actual needs.

[0075] 4-5 , in one embodiment of the present application, a second insulating member 722 is disposed above a first insulating member 721. Sealant is disposed within both the first insulating member 721 and the second insulating member 722. Specifically, the second insulating member 722 is provided with at least one through-hole 7221 that extends through the second insulating member 722, thereby connecting the first insulating member 721, located below the second insulating member 722, to the outside world.

[0076] Sealant is applied to through-hole 7221, bonding first insulating member 721 to second insulating member 722 and sealing the gap between the connection assembly and the escape zone. This improves the sealing of the insulating assembly 72 as a whole, further enhancing the sealing of the accommodating cavity 5 and improving the venting efficiency of the battery tray.

[0077] Preferably, a receiving groove is provided on one side of the first insulating member 721 close to the second insulating member 722, and the receiving groove is cooperated with the through hole 7221, as shown in Figure 5. The receiving groove is used to accommodate sealant, further sealing the gap between the connecting component and the avoidance area, thereby improving the sealing of the receiving cavity 5.

[0078] In the present application, by setting sealant in the first insulating part 721 and the second insulating part 722, it is beneficial to seal the gap between the connecting component and the avoidance area, thereby improving the sealing of the accommodating cavity 5 in the battery tray, making the exhaust in the accommodating cavity 5 independent of each other, and allowing the airflow to be discharged from the position of the one-way valve 4 to the exhaust channel 21 according to a preset route, thereby improving the exhaust effect of the battery tray.

[0079] In an embodiment of the present application, the insulating assembly 72 includes a first insulating member 721 and a second insulating member 722, the first insulating member 721 is arranged on the separator body 71, and the second insulating member 722 is arranged on the first insulating member 721; wherein, an avoidance area is provided on at least one of the first insulating member 721 and the second insulating member 722.

[0080] In one embodiment of the present application, the avoidance area includes a first avoidance area 723 and a second avoidance area 724. The first avoidance area 723 and the second avoidance area 724 accommodate the busbar and the wires respectively.

[0081] In some embodiments, the first avoidance area 723 is, for example, for a busbar connected to the battery module 3 to pass through, and the second avoidance area 724 is, for example, for a wire connected to the battery module 3 to pass through. Of course, the first avoidance area 723 can also be configured to allow the wire connected to the battery module 3 to pass through, while the second avoidance area 724 is configured to allow the busbar connected to the battery module 3 to pass through. This application does not specifically limit this.

[0082] In addition, the present application does not limit the locations of the first avoidance area 723 and the second avoidance area 724. The second avoidance area 724 is, for example, disposed on a side of the second insulating member 722 away from the first insulating member 721. Specifically:

[0083] In one embodiment, as shown in FIG4 , the first avoidance area 723 is formed on a side of the first insulating member 721 close to the second insulating member 722 ;

[0084] In one embodiment, the first avoidance area 723 is formed on the first insulating member 721 and the second insulating member 722 and is located between the first insulating member 721 and the second insulating member 722;

[0085] In one embodiment, the first avoidance area 723 is formed on a side of the second insulating member 722 close to the first insulating member 721 .

[0086] It should be noted that the insulating assembly 72 can also include a larger number of insulating parts, such as a third insulating part and a fourth insulating part. This application does not specifically limit the number of insulating parts in the insulating assembly 72, and the structure of the insulating assembly 72 is selected according to the actual structure.

[0087] When installing the insulating assembly 72 of the battery tray provided in the present application, first install the first insulating member 721 on the separator body 71, and then connect the busbars between adjacent battery modules 3 and overlap them in the first avoidance area 723. Then install the second insulating member 722 on the first insulating member 721, and the second insulating member 722 limits the busbars in the first avoidance area 723. Thereafter, place the wires between adjacent battery modules 3 in the second avoidance area 724 and position them by means of the limiting member 725. Finally, inject sealant into the through hole 7221 of the second insulating member 722 to seal the area between the first insulating member 721 and the second insulating member 722.

[0088] In the embodiment of the present application, the first exhaust port is provided with a one-way valve 4 , which is used to guide the gas in the accommodating chamber 5 into the exhaust channel 21 .

[0089] In the present application, an exhaust channel 21 is provided inside the side beam structure 2, and each accommodating cavity 5 is provided with at least one first exhaust port. Each first exhaust port is provided with a one-way valve 4. The one-way valve is used to guide the gas in the accommodating cavity 5 into the exhaust channel 21.

[0090] By providing a one-way valve 4, it is ensured that the high-temperature gas or electrolyte vapor generated when the battery cell thermal runaway is only discharged from the accommodating cavity 5 into the exhaust channel 21, and the gas in the exhaust channel 21 will not flow back into the accommodating cavity 5, thereby improving the exhaust smoothness of the battery tray when the battery cell thermal runaway is in progress, and reducing the possibility of fire and explosion of the package due to poor exhaust and gas blowby.

[0091] In some embodiments, an explosion-proof valve 6 is provided on the second exhaust port, so that the gas in the exhaust channel 21 is discharged from the explosion-proof valve 6. The provision of the explosion-proof valve 6 improves the safety of the battery tray during use.

[0092] Referring to Figures 1 and 2 , the side beam structure 2 is also provided with an explosion-proof valve 6 , located at the second exhaust port. Specifically, the explosion-proof valve 6 can be provided on the first side beam 22 or the second side beam 23 . Alternatively, the explosion-proof valve 6 can be provided on both the first side beam 22 and the second side beam 23 . Alternatively, the explosion-proof valve 6 can be provided on the first partition 7 . This application does not limit the number of explosion-proof valves 6 .

[0093] In some embodiments, the explosion-proof valve 6 and the one-way valve 4 are respectively disposed on the first side beam 22 and the second side beam 23. As shown in Figure 1, the one-way valve 4 is disposed on the first side beam 22, and the explosion-proof valve 6 is disposed on the second side beam 23. Separating the explosion-proof valve 6 from the one-way valve 4 helps extend the path for high-temperature gas or electrolyte vapor generated during thermal runaway of the battery cell to be discharged through the exhaust channel 21, thereby cooling and buffering the high-temperature gas or electrolyte vapor, thereby reducing the pressure of the high-temperature gas or electrolyte vapor when it reaches the explosion-proof valve 6.

[0094] In the embodiment of the present application, the side beam structure 2 includes a first side beam 22 and a second side beam 23. There are two first side beams 22 and two second side beams 23, and the two first side beams 22 and the two second side beams 23 are enclosed to form a accommodating cavity; wherein, a one-way valve 4 is provided on at least one of the first side beam 22 and the second side beam 23.

[0095] Referring to Figure 1 , the side beam structure 2 includes two first side beams 22 and two second side beams 23. The two first side beams 22 are parallel to each other with a gap between them, and the two second side beams 23 are parallel to each other with a gap between them. An angle is formed between the first side beams 22 and the second side beams 23, for example, 90 degrees. The second side beam 23 is disposed between the two first side beams 22, and the first side beam 22 is disposed between the two second side beams 23. The first side beams 22 and the second side beams 23 are connected end to end to form a ring.

[0096] The first exhaust port can be provided on the first side beam 22, the first exhaust port can also be provided on the second side beam 23, or the first exhaust port can also be provided on both the first side beam 22 and the second side beam 23. The specific position of the first exhaust port is not limited in this application.

[0097] In the embodiment of the present application, a second partition 8 is further included, and the first partition 7 and the second partition 8 are arranged crosswise.

[0098] In one embodiment of the present application, the first partition 7 includes a first partition 7 and a second partition 8 that are cross-arranged. The first partition 7 and the second partition 8 are, for example, arranged vertically.

[0099] As shown in Figure 1, the first partition 7 includes four first partitions 7 and one second partition 8, and six accommodating cavities 5 are formed in the accommodating cavity. In some embodiments, the second partition 8 is arranged at the center line position of the second side beam 23, the second partition 8 is perpendicular to the second side beam 23, and the two ends of the second partition 8 are respectively fixedly connected to the second side beam 23. There are four first partitions 7, and the four first partitions 7 are evenly divided into two groups and symmetrically arranged on both sides of the second partition 8. The two second partitions 8 on the same side of the second partition 8 are parallel to each other and a gap is provided between them. One end of the first partition 7 is fixedly connected to the first side beam 22, and the other end of the first partition 7 is fixedly connected to the second partition 8.

[0100] The present application also provides a battery pack, including a battery module 3 and the above-mentioned battery tray, and the battery module 3 is arranged in the accommodating cavity 5.

[0101] The present application provides a battery pack, including multiple battery modules 3 and a battery tray. The battery tray includes a base plate 1, a side beam structure 2 is provided on the base plate 1, the side beam structure 2 and the base plate 1 are combined to form a accommodating cavity, a first partition 7 is provided in the side beam structure 2, the first partition 7 divides the accommodating cavity into multiple accommodating cavities 5, and each accommodating cavity 5 is correspondingly provided with a battery module 3.

[0102] In some embodiments, an exhaust channel 21 is formed within the side beam structure 2, and a one-way valve 4 is provided on the side beam structure 2. Each receiving cavity 5 is provided with a corresponding one-way valve 4. When the battery cells of the battery module 3 experience thermal runaway, high-temperature gas or electrolyte vapor is generated in the receiving cavity 5. The one-way valve 4 is used to direct the gas in the receiving cavity 5 into the exhaust channel 21 and prevent the gas in the exhaust channel 21 from flowing back into the receiving cavity 5. This improves the exhaust flow of the battery tray in the event of thermal runaway of the battery cells and reduces the possibility of fire and explosion caused by poor exhaust and blowby.

[0103] The present application also provides a vehicle comprising the above-mentioned battery pack.

[0104] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0105] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery tray, characterized in that: include: A base plate (1), the base plate (1) being used to support the battery module (3); A side beam structure (2), the side beam structure (2) being arranged on the peripheral side of the bottom plate (1) and enclosing together with the bottom plate (1) to form a mounting cavity; and at least one first partition (7), the first partition (7) being located in the installation cavity and connected to the side beam structure (2), and dividing the installation cavity into at least two accommodating cavities (5) for accommodating the battery module (3); The first partition (7) comprises a partition body (71) and an insulating component (72), the partition body (71) is connected to the side beam structure (2), the partition body (71) is provided with a notch, and the insulating component (72) is used to block the notch and to allow a connection component connected to a battery module to pass through; At least one of the side beam structure (2) and the first partition (7) corresponding to each of the accommodating cavities (5) is provided with a first exhaust port and an exhaust channel (21) connected to the first exhaust port, wherein the first exhaust port is used to guide the gas in the accommodating cavity (5) into the exhaust channel (21).

2. The battery tray according to claim 1, characterized in that: It also comprises a top plate, which is sealedly connected to the side beam structure (2) and the first partition (7), so that the accommodating cavity (5) forms a sealed cavity.

3. The battery tray according to claim 1 or 2, characterized in that: The insulating component is provided with an escape area, and the escape area is used for allowing a connecting component connected to the battery module to pass through and is suitable for allowing the connecting component to be sealed in the escape area.

4. The battery tray according to claim 3, characterized in that: The insulating component (72) comprises a first insulating member (721) and a second insulating member (722), wherein the first insulating member (721) is arranged on the separator body (71), and the second insulating member (722) is arranged on the first insulating member (721); wherein: A first avoidance area (723) is provided between the first insulating member (721) and the second insulating member (722).

5. The battery tray according to claim 4, characterized in that: The insulating component (72) further comprises a limiting member (725), a second avoidance area (724) is provided on the second insulating component (722), and the limiting member (725) is arranged on the second insulating component (722) and is used to limit the connection component in the second avoidance area (724).

6. The battery tray according to claim 5, characterized in that: A sealant is provided in the first insulating member (721), and the sealant is used to fill a gap between the connection component and the first insulating member (721) in the first avoidance area (721).

7. The battery tray according to claim 5 or 6, characterized in that: A sealant is provided in the second insulating member (722), and the sealant is used to fill the gap between the connecting component and the second insulating member (722) in the second avoidance area (724).

8. The battery tray according to claim 3, characterized in that: The insulating component (72) comprises a first insulating member (721) and a second insulating member (722), wherein the first insulating member (721) is arranged on the separator body (71), and the second insulating member (722) is arranged on the first insulating member (721); wherein: The avoidance zone is provided on at least one of the first insulating member (721) and the second insulating member (722).

9. The battery tray according to any one of claims 1 to 8, characterized in that: The first exhaust port is provided with a one-way valve (4), and the one-way valve (4) is used to guide the gas in the accommodating chamber (5) into the exhaust channel (21).

10. The battery tray according to any one of claims 1 to 9, characterized in that: It also comprises a second partition (8), wherein the first partition (7) and the second partition (8) are arranged crosswise.

11. A battery pack, characterized in that: It comprises a battery module (3) and a battery tray according to any one of claims 1 to 10, wherein the battery module (3) is arranged in the accommodating cavity (5).

12. A vehicle, characterized in that: A battery pack comprising the battery pack of claim 11.

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