Tray assembly, battery pack and vehicle

Abstract

The utility model discloses a tray assembly, a battery pack and a vehicle. The tray assembly comprises a tray body, the tray body is provided with a plurality of subspaces which are spaced in the first direction and used for containing battery packs, exhaust channels communicated with the subspaces are arranged in at least part of the subspaces, the exhaust channels are located between the battery packs and the side wall of the tray body, and exhaust holes communicated with the exhaust channels are formed in the side wall of the tray body. The exhaust holes are located in the side wall, close to the corresponding exhaust channels in the second direction, of the tray body and penetrate through the side wall of the tray body, and the first direction is perpendicular to the second direction. According to the tray assembly disclosed by the utility model, the tray assembly is simple and compact in structure and small in occupied space, can effectively exhaust air when the battery pack is abnormal, and can improve the safety of the battery pack.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a tray assembly, a battery pack and a vehicle. Background Art

[0002] In the related technologies, with the popularity of electric vehicles, the safety performance of battery packs has received extensive attention. There are multiple battery packs in the battery pack. During the use of the battery pack, the battery pack may experience thermal runaway due to overheating, short circuit or other reasons, causing the internal pressure of the battery pack to rise sharply, thereby causing safety accidents such as explosion and fire, and greatly reducing the safety and reliability of the battery pack. Therefore, the battery pack needs to be equipped with an exhaust device and an explosion-proof valve, but this will make the battery pack larger. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a tray assembly, which has a simple and compact structure, occupies a small space, can effectively exhaust air when an abnormality occurs in the battery pack, and can improve the safety of the battery pack.

[0004] The utility model also provides a battery pack, which includes the above-mentioned tray assembly.

[0005] The utility model also provides a vehicle, which comprises the above-mentioned battery pack.

[0006] According to an embodiment of the utility model, the tray assembly includes a tray body. The tray body has a plurality of subspaces spaced apart along a first direction for placing a battery pack, at least some of the subspaces have exhaust channels connected to the subspaces, the exhaust channels are located between the battery pack and the side wall of the tray body, the side wall of the tray body has exhaust holes connected to the exhaust channels, the exhaust holes are located on the side wall of the tray body close to the corresponding exhaust channels along a second direction and penetrate the side wall of the tray body, and the first direction and the second direction are perpendicular.

[0007] According to the tray assembly of the embodiment of the utility model, by providing a plurality of sub-spaces spaced apart along a first direction and exhaust channels connected to the plurality of sub-spaces in the tray body, and providing exhaust holes on the side walls of the tray body close to the corresponding exhaust channels in the second direction, the exhaust path of the exhaust holes connected to the exhaust channels can be reduced, so that the arrangement of the exhaust structure of the tray assembly is more compact and reasonable, saving space, and thus reducing the volume of the battery pack. When an abnormal situation such as thermal runaway occurs in the battery pack, the gas and pressure in the sub-space can be quickly released to avoid explosion or fire of the battery pack, thereby improving the safety of the battery pack and extending the service life of the battery pack.

[0008] According to some embodiments of the present invention, the exhaust channel extends along the first direction, and both ends of the exhaust channel along the first direction are open and spaced apart from two inner walls of the subspace opposite to the first direction for communicating with the subspace.

[0009] According to some embodiments of the utility model, the tray assembly also includes a first side plate and a first channel member, the first side plate being located between the battery pack and the side wall of the tray body; the first channel member is disposed in the first side plate, the exhaust channel is defined in the first channel member, and the first channel member has a connecting hole connecting the exhaust channel and the exhaust hole.

[0010] In some embodiments of the utility model, an embedding groove is provided on a side of the first side plate facing away from the battery pack, the first channel member is embedded in the embedding groove, and the connecting hole is located on a side of the first channel member facing away from the battery pack.

[0011] In some embodiments of the present invention, the first side panel and the first channel member are an integral piece; or, the first side panel and the first channel member are bonded or snapped together.

[0012] In some embodiments of the present invention, a first buffer is provided between the first side plate of the side plate and the side wall of the tray body, and a through hole opposite to and connected with the connecting hole and the exhaust hole is provided on the first buffer.

[0013] According to some embodiments of the present invention, the tray assembly further includes a second channel member connected to the inner side of the side wall of the tray body, and the second channel member and the inner surface of the side wall of the tray body define the exhaust channel.

[0014] In some embodiments of the present invention, the second channel member includes: a first plate body and a second plate body, wherein one end of the first plate body is connected to the inner surface of the side wall of the tray body, and the other end extends toward the subspace; one end of the second plate body is connected to an end of the first plate body away from the side wall of the tray body, and the other end extends toward the bottom wall of the tray body and abuts against the bottom wall of the tray body, and the first plate body, the second plate body, the side wall and the bottom wall of the tray body jointly define the exhaust channel.

[0015] In some embodiments of the present invention, the second plate body is provided with reinforcing ribs; and / or, reinforcing ribs are provided at the connection between the second plate body and the first plate body.

[0016] In some embodiments of the present invention, the tray assembly further includes a second side plate and a second buffer member, the second side plate is provided between the battery pack and the second channel member; the second buffer member is provided between the second side plate and the second channel member.

[0017] In some embodiments of the present invention, the second channel member is connected to the side wall of the tray body by welding; or, the second channel member and the side wall of the tray body are an integral part.

[0018] According to some embodiments of the utility model, one of the two side walls of the tray body opposite to each other along the second direction is an exhaust side wall, the exhaust channel is arranged between the battery pack and the exhaust side wall, and the plurality of exhaust holes are arranged on the exhaust side wall.

[0019] According to some embodiments of the present invention, the tray assembly further comprises at least one crossbeam, wherein the crossbeam is disposed in the tray body and is used to divide the space in the tray body into a plurality of sub-spaces spaced apart along the first direction.

[0020] According to some embodiments of the present utility model, the tray assembly further includes an explosion-proof valve, and the exhaust hole is provided with the explosion-proof valve.

[0021] The battery pack according to the embodiment of the present invention comprises the above-mentioned tray assembly and a battery pack, and the battery pack is arranged in the subspace.

[0022] According to the battery pack of the embodiment of the utility model, by providing a plurality of sub-spaces spaced apart along a first direction and exhaust channels connected to the plurality of sub-spaces in the tray body, and providing exhaust holes on the side walls of the tray body close to the corresponding exhaust channels in the second direction, the exhaust path of the exhaust holes connected to the exhaust channels can be reduced, so that the arrangement of the exhaust structure of the tray assembly is more compact and reasonable, saving space, and thus reducing the volume of the battery pack. When an abnormal situation such as thermal runaway occurs in the battery pack, the gas and pressure in the sub-space can be quickly released to avoid explosion or fire of the battery pack, thereby improving the safety of the battery pack and extending the service life of the battery pack.

[0023] A vehicle according to an embodiment of the present utility model includes the above-mentioned battery pack.

[0024] According to the vehicle of the embodiment of the utility model, by providing a plurality of sub-spaces spaced apart along a first direction and exhaust channels connected to the plurality of sub-spaces in the tray body, and providing exhaust holes on the side walls of the tray body close to the corresponding exhaust channels in the second direction, the exhaust path of the exhaust holes connected to the exhaust channels can be reduced, so that the arrangement of the exhaust structure of the tray assembly is more compact and reasonable, saving space, and thus reducing the volume of the battery pack. When an abnormal situation such as thermal runaway occurs in the battery pack, the gas and pressure in the sub-space can be quickly released to avoid explosion or fire of the battery pack, thereby improving the safety of the battery pack and extending the service life of the battery pack.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is a three-dimensional diagram of a battery pack according to an embodiment of the utility model;

[0028] Figure 2 is a top view of a battery pack according to an embodiment of the utility model;

[0029] Figure 3 is along Figure 2 Sectional view along line AA;

[0030] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0031] Figure 5 is a three-dimensional view of a first side plate and a first channel member of a tray assembly according to an embodiment of the utility model;

[0032] Figure 6 is a three-dimensional diagram of a first buffer member of a tray assembly according to an embodiment of the utility model;

[0033] Figure 7 is a three-dimensional diagram of a tray assembly according to another embodiment of the utility model;

[0034] Figure 8 is a top view of a battery pack according to another embodiment of the utility model;

[0035] Fig. 9 is along Figure 8 Sectional view of the mid-CC line;

[0036] Fig.10 yes Fig. 9 Enlarged view of point D in the middle.

[0037] Reference numerals:

[0038] 100. Tray assembly;

[0039] 1. Tray body; 11. Subspace; 12. Exhaust channel; 13. Exhaust hole; 14. Exhaust side wall;

[0040] 2. Explosion-proof valve;

[0041] 3. first side plate; 31. embedding groove;

[0042] 4. first channel member; 41. communicating hole;

[0043] 5. first buffer member; 51. through hole;

[0044] 6. Second channel member; 61. First plate body; 62. Second plate body; 63. Reinforcing ribs;

[0045] 7. Second side panel;

[0046] 8. A second buffer;

[0047] 9. Beam;

[0048] 200, battery pack;

[0049] 10. Battery pack. DETAILED DESCRIPTION

[0050] The embodiments of the present invention are described in detail below, and 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 invention, and cannot be understood as limiting the present invention.

[0051] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Reference below Figure 1-Figure 10 A tray assembly 100 according to an embodiment of the present invention is described.

[0054] like Figure 1 As shown, the tray assembly 100 according to the embodiment of the present invention includes a tray body 1 .

[0055] Specifically, Figure 1 As shown, combined Figure 2 and Figure 3 The tray assembly 100 is used for the battery pack 200. The tray body 1 has a plurality of subspaces 11 spaced apart along a first direction for placing the battery pack 10. The plurality of subspaces 11 can stably place the battery pack 10. The tray body 1 serves as a support and protective structure for the battery pack 10, which can prevent the internal battery pack 10 from shifting or colliding during the transportation or use of the battery pack 200.

[0056] Among them, at least part of the subspace 11 has an exhaust channel 12 connected to the subspace 11, the exhaust channel 12 is located between the battery pack 10 and the side wall of the tray body 1, and the side wall of the tray body 1 has an exhaust hole 13 connected to the exhaust channel 12, the exhaust hole 13 is located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrates the side wall of the tray body 1, and the first direction and the second direction are perpendicular. In this way, the exhaust hole 13 is connected to the exhaust channel 12, exhaust can be effectively achieved, the structural arrangement is compact and reasonable, and the occupied space can be saved, so that the volume of the battery pack 200 can be reduced.

[0057] For example, Figure 2 , Figure 3 and Figure 4 As shown, each subspace 11 has an exhaust channel 12 connected to the subspace 11, and the side wall of the tray body 1 has exhaust holes 13 respectively connected to the multiple exhaust channels 12. The exhaust holes 13 are located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrate the side wall of the tray body 1 along the second direction, which can reduce the exhaust path of the exhaust hole 13 connected to the exhaust channel 12, making the arrangement of the exhaust structure of the tray assembly 100 more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. The exhaust holes 13 penetrate the side wall of the tray body 1 along the second direction, which is also convenient for processing.

[0058] By providing the exhaust channel 12 and the exhaust hole 13, it can be ensured that when the battery pack 10 has thermal runaway or other abnormal conditions, the heat and gas generated can be effectively and quickly discharged to prevent the battery pack 200 from overheating, thereby reducing the risk of explosion and fire and extending the service life of the battery pack 200.

[0059] Preferably, the exhaust hole 13 is provided with an explosion-proof valve 2. When the temperature of the battery pack 10 is too high or the pressure in the subspace 11 increases abnormally, the explosion-proof valve 2 can be opened in time, and the gas can be safely released and discharged through the explosion-proof valve 2 after passing through the exhaust channel 12 and the exhaust hole 13, thereby avoiding the occurrence of safety accidents such as explosion or fire of the battery pack 10 and improving the overall safety of the battery pack 200.

[0060] It can be understood that there are multiple subspaces 11, and the exhaust channels 12, exhaust holes 13 and explosion-proof valves 2 can be multiple corresponding to the multiple subspaces 11, and the pressure in the multiple subspaces 11 where the battery pack 10 is placed can be effectively managed and controlled. When the battery pack 10 in one of the subspaces 11 has a thermal runaway, the exhaust channel 12 and the exhaust hole 13 connected to the subspace 11 can be used as the exhaust path of the thermal runaway gas. The gas enters the corresponding exhaust channel 12 from the subspace 11 and is discharged from the battery pack 200 through the exhaust hole 13 and the explosion-proof valve 2, which can reduce the impact on the battery pack 10 in the adjacent subspace 11 and limit the spread of the thermal runaway.

[0061] According to the tray assembly 100 of the embodiment of the utility model, by providing a plurality of sub-spaces 11 spaced apart along a first direction and exhaust channels 12 connected to the plurality of sub-spaces 11 in the tray body 1, and providing exhaust holes 13 on the side walls of the tray body 1 close to the corresponding exhaust channels 12 in the second direction, the exhaust path of the exhaust holes 13 connected to the exhaust channels 12 can be reduced, so that the arrangement of the exhaust structure of the tray assembly 100 is more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. When an abnormal situation such as thermal runaway occurs in the battery pack 10, the gas and pressure in the sub-space 11 can be quickly released to avoid explosion or fire of the battery pack 10, thereby improving the safety of the battery pack 200 and extending the service life of the battery pack 200.

[0062] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 5 As shown, the exhaust channel 12 extends along the first direction, and the exhaust channel 12 is open at both ends along the first direction and is spaced apart from the two inner walls opposite to the subspace 11 along the first direction, so as to be connected with the subspace 11. The exhaust channel 12 is open at both ends along the first direction, and the structure is simple and easy to implement, so as to facilitate the connection between the exhaust channel 12 and the subspace 11. The gas flow path is optimized to ensure that the gas flows smoothly from both ends of the subspace 11 along the first direction into the exhaust channel 12 to avoid gas accumulation. This helps to quickly release the gas generated inside the battery pack 10 and improve the exhaust efficiency.

[0063] In some embodiments of the present invention, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the tray assembly 100 also includes a first side plate 3 and a first channel member 4. The first side plate 3 is located between the battery pack 10 and the side wall of the tray body 1. The first side plates 3 can be provided at both ends of the battery pack 10 along the second direction. The first side plates 3 can provide a clamping force for the battery pack 10 in the second direction to prevent the battery pack 10 from expanding and bulging during use, thereby extending the service life of the battery pack 10.

[0064] Among them, the first channel member 4 is arranged in the first side plate 3, and the exhaust channel 12 is defined in the first channel member 4. The first channel member 4 has a connecting hole 41 connecting the exhaust channel 12 and the exhaust hole 13. The first side plate 3 and the first channel member 4 extend along the first direction. The two ends of the first channel member 4 along the first direction are open and are spaced apart from the two inner walls opposite to the subspace 11 along the first direction. By setting the first side plate 3 and the first channel member 4, the exhaust channel 12 connected to the subspace 11 can be defined, and the structure is simple and easy to implement. The exhaust channel 12 is connected to the exhaust hole 13 through the connecting hole 41, which can ensure the fluidity of the gas flow path and ensure that the gas in the subspace 11 can flow smoothly to the exhaust hole 13. At the same time, the first channel member 4 is located in the first side plate 3, which can effectively save the occupied space and improve the space utilization of the tray assembly 100, thereby reducing the volume of the battery pack 200.

[0065] In some embodiments of the present invention, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an embedding groove 31 is provided on the side of the first side plate 3 away from the battery pack 10, and the first channel member 4 is embedded in the embedding groove 31. By providing the embedding groove 31, stable support and precise positioning can be provided for the first channel member 4, which is convenient for arranging the first channel member 4 in the first side plate 3, saving space and improving space utilization. Among them, the communication hole 41 is located on the side of the first channel member 4 away from the battery pack 10, which is convenient for realizing the communication between the exhaust channel 12 and the exhaust hole 13, and the structural arrangement is reasonable.

[0066] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the first side panel 3 and the first channel member 4 are an integral part. The first side panel 3 may be an injection-molded part or a composite material of glass fiber and resin. The material of the first channel member 4 may be high-temperature resistant materials such as aluminum, steel or a composite material of glass fiber and resin. In a specific processing process, the first channel member 4 may be embedded in the first side panel 3 during injection molding to be formed as an integral part, which can improve the connection stability between the first side panel 3 and the first channel member 4, while simplifying the installation steps and improving the assembly efficiency.

[0067] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the first side plate 3 and the first channel member 4 are connected by bonding or snapping. The assembly method is simple and easy to operate, which can improve the assembly efficiency while ensuring the connection stability between the first side plate 3 and the first channel member 4. In addition, the snapping connection can also realize the detachability of the first side plate 3 and the first channel member 4, which is convenient for later inspection and maintenance.

[0068] In some embodiments of the present invention, Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a first buffer member 5 is disposed between the first side plate 3 and the side wall of the tray body 1 , and a through hole 51 is disposed on the first buffer member 5 , which is opposite to and connected with the communicating hole 41 and the exhaust hole 13 .

[0069] It is understandable that the first buffer 5 is elastic and can be deformed. The first buffer 5 is interference-fitted between the first side plate 3 and the side wall of the tray body 1, and can provide additional pressing force for the battery pack 10 in the second direction, so that the battery pack 10 and the first side plate 3 fit tightly, which can prevent the battery pack 10 from expanding and bulging during use, thereby extending the service life of the battery pack 10. At the same time, the first buffer 5 can also provide a pre-tightening force, which can prevent the internal components of the battery pack 200 from shifting or shaking during transportation and use. In addition, the first buffer 5 can also provide additional protection and increase the impact absorption capacity of the battery pack 200.

[0070] The through hole 51 can ensure the connection between the connecting hole 41 and the exhaust hole 13 , and ensure the fluidity of the gas flow path, thereby ensuring that the gas in the subspace 11 can flow smoothly to the exhaust hole 13 .

[0071] In some embodiments of the present invention, Figure 7 and Figure 8 As shown, the tray assembly 100 further includes a second channel member 6, which is connected to the inner side of the side wall of the tray body 1, and the second channel member 6 and the inner surface of the side wall of the tray body 1 define an exhaust channel 12. The second channel member 6 extends along the first direction, and the first channel member 4 is open at both ends along the first direction and is spaced apart from the two inner walls opposite to the subspace 11 along the first direction. By arranging the second channel member 6, the exhaust channel 12 communicating with the subspace 11 can be defined, and the structure is simple and easy to implement, which can ensure that the gas in the subspace 11 can flow smoothly into the exhaust channel 12.

[0072] In some embodiments of the present invention, Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the second channel member 6 includes: a first plate body 61 and a second plate body 62. One end of the first plate body 61 is connected to the inner surface of the side wall of the tray body 1, and the other end extends toward the subspace 11. One end of the second plate body 62 is connected to one end of the first plate body 61 away from the side wall of the tray body 1, and the other end extends toward the bottom wall of the tray body 1 and abuts against the bottom wall of the tray body 1. The first plate body 61, the second plate body 62, the side wall and the bottom wall of the tray body 1 together define the exhaust channel 12. By designing the second channel member 6 as the first plate body 61 and the second plate body 62, it is convenient to stably connect the second channel member 6 with the side wall and the bottom wall of the tray body 1 and define the exhaust channel 12. The structure is simple and easy to implement.

[0073] In some embodiments of the present invention, Figure 7 As shown, the second plate body 62 is provided with a reinforcing rib 63, and the connection between the second plate body 62 and the first plate body 61 is provided with a reinforcing rib 63. The provision of the reinforcing rib 63 enhances the structural strength of the second channel member 6, enabling it to withstand greater pressure and mechanical stress, which is beneficial to enhancing the stability of the exhaust channel 12, thereby enhancing the stability and reliability of the tray assembly 100.

[0074] In some embodiments of the present invention, Figure 8 , Fig. 9 and Fig.10 As shown, the tray assembly 100 further includes a second side plate 7 and a second buffer member 8 . The second side plate 7 is disposed between the battery pack 10 and the second channel member 6 . The second buffer member 8 is disposed between the second side plate 7 and the second channel member 6 .

[0075] It is understandable that the second side plate 7 can provide a clamping force for the battery pack 10 in the second direction to prevent the battery pack 10 from expanding and bulging during use. The second buffer member 8 has an interference fit between the second side plate 7 and the second channel member 6, and can provide additional restraining force for the battery pack 10 in the second direction, so that the battery pack 10 and the second side plate 7 fit tightly, further preventing the battery pack 10 from expanding and bulging during use, thereby extending the service life of the battery pack 10. At the same time, the second buffer member 8 can also provide a pre-tightening force, which can prevent the internal components of the battery pack 200 from shifting or shaking during transportation and use. In addition, the second buffer member 8 can also provide additional protection and increase the impact absorption capacity of the battery pack 200.

[0076] In some embodiments of the present invention, Figure 8 , Fig. 9 and Fig.10 As shown, the second channel member 6 is connected to the side wall of the tray body 1 by welding. The welding connection can enhance the connection stability between the second channel member 6 and the side wall of the tray body 1 , thereby enhancing the stability and reliability of the tray assembly 100 .

[0077] In some embodiments of the present invention, Figure 8 , Fig. 9 and Fig.10 As shown, the second channel member 6 and the side wall of the tray body 1 are integrated, which can improve the connection stability between the second channel member 6 and the side wall of the tray body 1 while simplifying the installation steps and improving the assembly efficiency.

[0078] In some embodiments of the present invention, Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, one of the two side walls of the tray body 1 opposite to each other along the second direction is an exhaust side wall 14, the exhaust channel 12 is provided between the battery pack 10 and the exhaust side wall 14, and a plurality of exhaust holes 13 are provided on the exhaust side wall 14. It can be understood that the side wall of the two side walls of the tray body 1 opposite to each other along the second direction, which is close to the exhaust channel 12 and provided with the exhaust holes 13, is defined as the exhaust side wall 14, and the exhaust channel 12, the exhaust holes 13 and the explosion-proof valve 2 are provided on one side of the tray body 1 along the second direction, and the structural layout is reasonable, which helps to more effectively manage and control the emission of gas. The battery pack 200 discharges the gas generated by the battery pack 10 only at one end along the second direction, which helps to optimize the arrangement of other components outside the battery pack 200.

[0079] In some embodiments of the present invention, Figure 1 and Figure 7 As shown, the tray assembly 100 further includes at least one crossbeam 9, which is disposed in the tray body 1 and is used to divide the space in the tray body 1 into a plurality of subspaces 11 spaced apart along a first direction. The crossbeam 9 can improve the structural strength of the tray body 1, help to place the battery pack 10 stably, and avoid collisions between adjacent battery packs 10. At the same time, by separating a plurality of subspaces 11, the placement of the battery pack 10 and the layout of the exhaust channel 12 can be more effectively managed and controlled, thereby reducing the mutual influence of the battery packs 10 in adjacent subspaces 11, and helping to limit the spread of thermal runaway.

[0080] The battery pack 200 according to an embodiment of the present invention is described below.

[0081] The battery pack 200 according to the embodiment of the present invention includes the above-mentioned tray assembly 100 and the battery group 10 .

[0082] Specifically, Figure 1 As shown, combined Figure 2 and Figure 3The tray assembly 100 includes a tray body 1, and the tray body 1 has a plurality of sub-spaces 11 spaced apart along a first direction for placing the battery pack 10. The plurality of sub-spaces 11 can stably place the battery pack 10. The tray assembly 100 serves as a support and protection structure for the battery pack 10, and can prevent the internal battery pack 10 from shifting or colliding during the transportation or use of the battery pack 200.

[0083] Among them, at least part of the subspace 11 has an exhaust channel 12 connected to the subspace 11, the exhaust channel 12 is located between the battery pack 10 and the side wall of the tray body 1, and the side wall of the tray body 1 has an exhaust hole 13 connected to the exhaust channel 12, the exhaust hole 13 is located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrates the side wall of the tray body 1, and the first direction and the second direction are perpendicular. In this way, the exhaust hole 13 is connected to the exhaust channel 12, exhaust can be effectively achieved, the structural arrangement is compact and reasonable, and the occupied space can be saved, so that the volume of the battery pack 200 can be reduced.

[0084] For example, Figure 2 , Figure 3 and Figure 4 As shown, each subspace 11 has an exhaust channel 12 connected to the subspace 11, and the side wall of the tray body 1 has exhaust holes 13 respectively connected to the multiple exhaust channels 12. The exhaust holes 13 are located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrate the side wall of the tray body 1 along the second direction, which can reduce the exhaust path of the exhaust hole 13 connected to the exhaust channel 12, making the arrangement of the exhaust structure of the tray assembly 100 more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. The exhaust holes 13 penetrate the side wall of the tray body 1 along the second direction, which is also convenient for processing.

[0085] By providing the exhaust channel 12 and the exhaust hole 13, it can be ensured that when the battery pack 10 has thermal runaway or other abnormal conditions, the heat and gas generated can be effectively and quickly discharged to prevent the battery pack 200 from overheating, thereby reducing the risk of explosion and fire and extending the service life of the battery pack 200.

[0086] Preferably, the exhaust hole 13 is provided with an explosion-proof valve 2. When the temperature of the battery pack 10 is too high or the pressure in the subspace 11 increases abnormally, the explosion-proof valve 2 can be opened in time, and the gas can be safely released and discharged through the explosion-proof valve 2 after passing through the exhaust channel 12 and the exhaust hole 13, thereby avoiding the occurrence of safety accidents such as explosion or fire of the battery pack 10 and improving the overall safety of the battery pack 200.

[0087] It can be understood that there are multiple subspaces 11, and the exhaust channels 12, exhaust holes 13 and explosion-proof valves 2 can be multiple corresponding to the multiple subspaces 11, and the pressure in the multiple subspaces 11 where the battery pack 10 is placed can be effectively managed and controlled. When the battery pack 10 in one of the subspaces 11 has a thermal runaway, the exhaust channel 12 and the exhaust hole 13 connected to the subspace 11 can be used as the exhaust path of the thermal runaway gas. The gas enters the corresponding exhaust channel 12 from the subspace 11 and is discharged from the battery pack 200 through the exhaust hole 13 and the explosion-proof valve 2, which can reduce the impact on the battery pack 10 in the adjacent subspace 11 and limit the spread of the thermal runaway.

[0088] According to the battery pack 200 of the embodiment of the utility model, by providing a plurality of sub-spaces 11 spaced apart along a first direction and exhaust channels 12 connected to the plurality of sub-spaces 11 in the tray body 1, and providing exhaust holes 13 on the side walls of the tray body 1 close to the corresponding exhaust channels 12 in the second direction, the exhaust path of the exhaust holes 13 connected to the exhaust channels 12 can be reduced, so that the arrangement of the exhaust structure of the tray assembly 100 is more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. When an abnormal situation such as thermal runaway occurs in the battery pack 10, the gas and pressure in the sub-space 11 can be quickly released to prevent the battery pack 10 from exploding or catching fire, thereby improving the safety of the battery pack 200 and extending the service life of the battery pack 200.

[0089] A vehicle according to an embodiment of the present invention is described below.

[0090] The vehicle according to the embodiment of the present invention includes the battery pack 200 described above.

[0091] Specifically, Figure 1 As shown, combined Figure 2 and Figure 3 A tray assembly 100 is provided in the battery pack 200. The tray assembly 100 includes a tray body 1. The tray body 1 has a plurality of subspaces 11 spaced apart along a first direction for placing the battery pack 10. The plurality of subspaces 11 can stably place the battery pack 10. The tray assembly 100 serves as a support and protection structure for the battery pack 10, and can prevent the internal battery pack 10 from shifting or colliding during the transportation or use of the battery pack 200.

[0092] Among them, at least part of the subspace 11 has an exhaust channel 12 connected to the subspace 11, the exhaust channel 12 is located between the battery pack 10 and the side wall of the tray body 1, and the side wall of the tray body 1 has an exhaust hole 13 connected to the exhaust channel 12, the exhaust hole 13 is located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrates the side wall of the tray body 1, and the first direction and the second direction are perpendicular. In this way, the exhaust hole 13 is connected to the exhaust channel 12, exhaust can be effectively achieved, the structural arrangement is compact and reasonable, and the occupied space can be saved, so that the volume of the battery pack 200 can be reduced.

[0093] For example, Figure 2 , Figure 3 and Figure 4 As shown, each subspace 11 has an exhaust channel 12 connected to the subspace 11, and the side wall of the tray body 1 has exhaust holes 13 respectively connected to the multiple exhaust channels 12. The exhaust holes 13 are located on the side wall of the tray body 1 close to the corresponding exhaust channel 12 along the second direction and penetrate the side wall of the tray body 1 along the second direction, which can reduce the exhaust path of the exhaust hole 13 connected to the exhaust channel 12, making the arrangement of the exhaust structure of the tray assembly 100 more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. The exhaust holes 13 penetrate the side wall of the tray body 1 along the second direction, which is also convenient for processing.

[0094] By providing the exhaust channel 12 and the exhaust hole 13, it can be ensured that when the battery pack 10 has thermal runaway or other abnormal conditions, the heat and gas generated can be effectively and quickly discharged to prevent the battery pack 200 from overheating, thereby reducing the risk of explosion and fire and extending the service life of the battery pack 200.

[0095] Preferably, the exhaust hole 13 is provided with an explosion-proof valve 2. When the temperature of the battery pack 10 is too high or the pressure in the subspace 11 increases abnormally, the explosion-proof valve 2 can be opened in time, and the gas can be safely released and discharged through the explosion-proof valve 2 after passing through the exhaust channel 12 and the exhaust hole 13, thereby avoiding the occurrence of safety accidents such as explosion or fire of the battery pack 10 and improving the overall safety of the battery pack 200.

[0096] It can be understood that there are multiple subspaces 11, and the exhaust channels 12, exhaust holes 13 and explosion-proof valves 2 can be multiple corresponding to the multiple subspaces 11, and the pressure in the multiple subspaces 11 where the battery pack 10 is placed can be effectively managed and controlled. When the battery pack 10 in one of the subspaces 11 has a thermal runaway, the exhaust channel 12 and the exhaust hole 13 connected to the subspace 11 can be used as the exhaust path of the thermal runaway gas. The gas enters the corresponding exhaust channel 12 from the subspace 11 and is discharged from the battery pack 200 through the exhaust hole 13 and the explosion-proof valve 2, which can reduce the impact on the battery pack 10 in the adjacent subspace 11 and limit the spread of the thermal runaway.

[0097] According to the vehicle of the embodiment of the utility model, by providing a plurality of sub-spaces 11 spaced apart along a first direction and exhaust channels 12 connected to the plurality of sub-spaces 11 in the tray body 1, and providing exhaust holes 13 on the side walls of the tray body 1 close to the corresponding exhaust channels 12 in the second direction, the exhaust path of the exhaust holes 13 connected to the exhaust channels 12 can be reduced, so that the arrangement of the exhaust structure of the tray assembly 100 is more compact and reasonable, saving space, and thus reducing the volume of the battery pack 200. When an abnormal situation such as thermal runaway occurs in the battery pack 10, the gas and pressure in the sub-space 11 can be quickly released to avoid explosion or fire of the battery pack 10, thereby improving the safety of the battery pack 200 and extending the service life of the battery pack 200.

[0098] In the description of this specification, the description with reference to the terms "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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0099] Although the embodiments of the present invention 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 spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tray assembly for a battery pack, characterized in that: include: A tray body, wherein the tray body has a plurality of subspaces spaced apart along a first direction for placing battery packs, at least some of the subspaces have exhaust channels connected to the subspaces, the exhaust channels are located between the battery packs and the side walls of the tray body, the side walls of the tray body have exhaust holes connected to the exhaust channels, the exhaust holes are located on the side walls of the tray body close to the corresponding exhaust channels along a second direction and penetrate the side walls of the tray body, and the first direction is perpendicular to the second direction.

2. The tray assembly according to claim 1, characterized in that: The exhaust channel extends along the first direction, and both ends of the exhaust channel along the first direction are open and spaced apart from two inner walls of the subspace opposite to the subspace along the first direction for communicating with the subspace.

3. The tray assembly according to claim 1, characterized in that: Also includes: a first side plate, the first side plate being located between the battery pack and a side wall of the tray body; The first channel member is disposed in the first side plate, the exhaust channel is defined in the first channel member, and the first channel member has a connecting hole connecting the exhaust channel and the exhaust hole.

4. The tray assembly according to claim 3, characterized in that: An embedding groove is provided on a side of the first side plate away from the battery pack, the first channel member is embedded in the embedding groove, and the communicating hole is located on a side of the first channel member away from the battery pack.

5. The tray assembly according to claim 4, characterized in that: The first side plate and the first channel member are an integral member; Alternatively, the first side plate and the first channel member are connected by bonding or snapping.

6. The tray assembly according to claim 3, characterized in that: A first buffer is provided between the first side plate and the side wall of the tray body, and a through hole is provided on the first buffer that is opposite to and connected with the communicating hole and the exhaust hole.

7. The tray assembly according to claim 1, characterized in that: Also includes: The second channel member is connected to the inner side of the side wall of the tray body, and the second channel member and the inner surface of the side wall of the tray body define the exhaust channel.

8. The tray assembly according to claim 7, characterized in that: The second channel member comprises: A first plate body, one end of which is connected to the inner surface of the side wall of the tray body, and the other end of which extends toward the subspace; A second plate body, one end of the second plate body is connected to one end of the first plate body away from the side wall of the tray body, and the other end extends toward the bottom wall of the tray body and abuts against the bottom wall of the tray body, and the first plate body, the second plate body, the side wall and the bottom wall of the tray body jointly define the exhaust channel.

9. The tray assembly according to claim 8, characterized in that: The second plate body is provided with reinforcing ribs; And / or, a reinforcing rib is provided at a connection between the second plate body and the first plate body.

10. The tray assembly according to claim 7, characterized in that: Also includes: a second side plate, the second side plate being provided between the battery pack and the second channel member; A second buffer member is provided between the second side plate and the second channel member.

11. The tray assembly according to claim 7, wherein: The second channel member is welded to the side wall of the tray body; Alternatively, the second channel member and the side wall of the tray body are an integral piece.

12. The tray assembly according to claim 1, wherein: One of the two side walls of the tray body opposite to each other along the second direction is an exhaust side wall, the exhaust channel is arranged between the battery pack and the exhaust side wall, and the plurality of exhaust holes are arranged on the exhaust side wall.

13. The tray assembly according to claim 1, wherein: Also includes: At least one crossbeam is disposed in the tray body and is used to divide the space in the tray body into a plurality of subspaces spaced apart along the first direction.

14. The tray assembly according to claim 1, wherein: Also includes: An explosion-proof valve is provided on the exhaust hole.

15. A battery pack, characterized in that: include: The tray assembly according to any one of claims 1 to 14; A battery pack is arranged in the subspace.

16. A vehicle, characterized in that: Comprising the battery pack according to claim 15.

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