Battery tray, power battery pack and vehicle

Abstract

The utility model discloses a battery tray, power battery pack and vehicle, battery tray includes boundary beam and bottom plate, boundary beam and bottom plate are used for forming the accommodation space that accommodates battery module, boundary beam includes first cooling pipeline and exhaust duct, first cooling pipeline includes inlet, first pipeline and outlet, first pipeline is communicated with inlet and outlet, and the first pipeline is communicated with the outlet. The inlet is used for inputting a cooling substance, the cooling substance is output from the outlet after passing through the first pipeline and exchanges heat with the battery module, and the exhaust pipeline is communicated with the accommodating space and the outside of the battery tray. According to the battery tray, rapid heat dissipation and smoke drainage of the battery pack can be guaranteed, meanwhile, the thickness of the battery tray is not increased, and arrangement of a cooling flow channel is facilitated.

Description

Technical Field

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

[0002] The battery pack generates a lot of heat during use, especially during fast charging. If it is not cooled down in time, the charging capacity of the battery pack will be affected. When the battery pack experiences thermal runaway during use, a large amount of high-temperature flammable gas will be released. If the pressure is not relieved in time, the air pressure in the battery pack will rise rapidly and the upper cover of the battery pack will be blown open, which may easily cause unsafe accidents. In the related art, a cooling plate is provided at the bottom of the battery pack to cool the battery pack to ensure the charging capacity of the battery pack, and an exhaust duct is provided on the bottom plate of the battery tray to drain the smoke and vapor when the battery pack experiences thermal runaway.

[0003] However, providing a cooling plate at the bottom of the battery pack and an exhaust duct on the bottom plate of the battery tray increases the thickness of the bottom plate and is not conducive to the flow channel arrangement of the cooling plate. Utility Model Content

[0004] 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 battery tray, which can ensure rapid heat dissipation and smoke drainage of the battery pack, and at the same time, does not increase the thickness of the battery tray, which is conducive to the arrangement of the cooling flow channel.

[0005] The utility model also aims to provide a power battery pack having the above-mentioned battery tray.

[0006] The utility model also aims to provide a vehicle having the above power battery pack

[0007] According to the embodiment of the first aspect of the utility model, the battery tray includes a side beam and a bottom plate, the side beam and the bottom plate are used to form a storage space for accommodating the battery module, the side beam includes a first cooling pipe and an exhaust pipe, the first cooling pipe includes an inlet, a first pipe and an outlet, the first pipe connects the inlet and the outlet, the inlet is used to input cooling material, the cooling material is output from the outlet after passing through the first pipe, and heat is exchanged with the battery module, and the exhaust pipe connects the storage space and the outside of the battery tray.

[0008] According to the battery tray of the utility model, by arranging the first cooling duct and the exhaust duct on the side beam, the battery pack can quickly dissipate heat during fast charging, thereby improving the charging capacity of the battery pack, and the battery module can discharge smoke when thermal runaway occurs, thereby improving the safety of the battery pack. At the same time, the thickness of the battery tray will not be increased. The first cooling duct is arranged on the side beam without avoiding other structural components at the bottom of the battery tray, which is convenient for layout.

[0009] According to some embodiments of the present utility model, the first cooling duct and the exhaust duct are arranged at intervals along the height direction of the side beam.

[0010] According to some embodiments of the present utility model, the first cooling duct and the exhaust duct are arranged at intervals along the width direction of the side beam.

[0011] According to some embodiments of the present invention, the side beam includes a first plate and a second plate, the first plate is arranged adjacent to the battery module, the first plate has a cavity, the first cooling pipe is arranged in the cavity, and an exhaust pipe is formed between the first plate and the second plate.

[0012] According to some embodiments of the utility model, at least one through hole is provided on the first plate, and the through hole and the first cooling pipe are spaced apart along the height direction of the first plate, and the through hole connects the accommodating space of the battery tray and the exhaust pipe.

[0013] According to some embodiments of the present invention, there are multiple first cooling pipes, and the multiple first cooling pipes are arranged at intervals along the height direction of the side beam.

[0014] According to some embodiments of the present invention, the plurality of first cooling pipes are interconnected.

[0015] According to some embodiments of the present invention, there are multiple exhaust ducts, and the multiple exhaust ducts are arranged at intervals along the height direction of the side beam.

[0016] According to some embodiments of the present invention, the second plate includes a third plate and a fourth plate connected at a certain angle, and the first plate is connected to the third plate and the fourth plate respectively to form an exhaust duct with a triangular cross-section with the third plate and the fourth plate.

[0017] According to some embodiments of the present invention, the side beam further includes at least one dividing rib, which is arranged along the extension direction of the side beam and connected to the first plate and the second plate to form a plurality of exhaust ducts.

[0018] According to some embodiments of the present invention, at least one dividing rib is arranged at a certain angle to a horizontal plane.

[0019] According to some embodiments of the present utility model, a second cooling pipe is provided on the bottom plate, and the second cooling pipe is connected to the first cooling pipe.

[0020] The power battery pack according to the embodiment of the second aspect of the utility model comprises the battery tray and the battery module in the above embodiment, and the battery module is installed in the accommodating space.

[0021] According to the power battery pack of the embodiment of the utility model, the charging capacity of the power battery pack is improved by adopting the battery tray in the above embodiment, and the safety of use of the power battery pack is improved when thermal runaway occurs in the battery module. At the same time, the thickness of the power battery pack will not be increased, the structure of the battery pack is simplified, and the production efficiency is improved.

[0022] According to some embodiments of the present invention, at least one side of the battery module is disposed in close contact with the side beam.

[0023] According to some embodiments of the utility model, the side beam is provided with at least one through hole connecting the accommodating space and the exhaust duct; the battery module includes an explosion-proof valve, and the through hole and the projection of the explosion-proof valve on the side beam at least partially overlap.

[0024] A vehicle according to an embodiment of the third aspect of the utility model includes the power battery pack in the above embodiment.

[0025] According to the vehicle of the embodiment of the utility model, by adopting the power battery pack in the above embodiment, the performance and safety of the vehicle are improved, and at the same time, the structure of the vehicle is simplified and the production efficiency is improved.

[0026] 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

[0027] Figure 1 is a schematic structural diagram of a power battery according to an embodiment of the utility model;

[0028] Figure 2 is an expanded view of a side beam in a power battery according to an embodiment of the utility model;

[0029] Figure 3 is a cross-sectional view of a battery tray according to an embodiment of the utility model;

[0030] Figure 4 is a partial structural schematic diagram of a power battery according to an embodiment of the utility model;

[0031] Figure 5 is a cross-sectional view of a first plate in a battery tray according to an embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of a vehicle according to an embodiment of the utility model.

[0033] Reference numerals:

[0034] Battery tray 100,

[0035] side beam 10, accommodating space 10a, first cooling pipe 10b, inlet 10b1, first pipe 10b2, outlet 10b3, exhaust pipe 10c, first plate 11, cavity 11a, through hole 11b, second plate 12, third plate 121, fourth plate 122, partition rib 13,

[0036] Base plate 20, second cooling pipe 20a,

[0037] Power battery pack 1000, battery module 200, pole 201,

[0038] Vehicles 10000. DETAILED DESCRIPTION

[0039] 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.

[0040] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0041] The battery tray 100 , the power battery pack 1000 and the vehicle 10000 according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0042] Reference Figure 1 and Figure 2 According to the battery tray 100 of the embodiment of the first aspect of the utility model, the side beam 10 and the bottom plate 20 are used to form a storage space 10a for accommodating the battery module 200. The side beam 10 includes a first cooling pipe 10b and an exhaust pipe 10c. The first cooling pipe 10b includes an inlet 10b1, a first pipe 10b2 and an outlet 10b3. The first pipe 10b2 connects the inlet 10b1 and the outlet 10b3. The inlet 10b1 is used to input cooling material. The cooling material is output from the outlet 10b3 after passing through the first pipe 10b2 to exchange heat with the battery module 200. The exhaust pipe 10c connects the storage space 10a and the outside of the battery tray 100.

[0043] Specifically, refer to Figure 1 and Figure 2 The battery tray 100 in the embodiment of the utility model includes a side beam 10 and a bottom plate, and the bottom plate 20 is used to support the battery module 200. The shape of the bottom plate 20 is not limited, and can be a quadrilateral, a polygon, a circle, etc. The side beam 10 is connected to the circumference of the bottom plate 20 to form a receiving space 10a with the side beam 10, which is used to protect the battery module 200 from the side. The side beam 10 can form a certain angle with the bottom plate 20. For example, the angle between the side beam 10 and the bottom plate 20 can be an acute angle, a right angle, an obtuse angle, etc. Preferably, the angle between the side beam 10 and the bottom plate 20 is a right angle, so that the receiving space 10a can be fully utilized, thereby reducing the volume of the battery tray 100.

[0044] The side beam 10 includes a first cooling pipe 10b, which includes an inlet 10b1, an outlet 10b3, and a first pipe 10b2 connecting the inlet 10b1 and the outlet 10b3. The cooling material enters the first pipe 10b2 from the inlet 10b1, exchanges heat with the battery module 200 in the first pipe 10b2, and then is output from the outlet 10b3, taking away the heat of the battery module 200, thereby cooling the battery module 200.

[0045] In some implementations, the inlet 10b1 and the outlet 10b3 may be disposed on the side beam 10 or at other locations of the battery tray 100. For example, one of the inlet 10b1 and the outlet 10b3 may be disposed on the side beam 10, or both the inlet 10b1 and the outlet 10b3 may be disposed on the side beam 10, or both the inlet 10b1 and the outlet 10b3 may be disposed at other locations of the battery tray 100. The first duct 10b2 may be in a straight line, a broken line, a curved line, etc. There may be one or more first ducts 10b2.

[0046] The side beam 10 also includes an exhaust duct 10c, which connects the accommodating space 10a and the outside of the battery tray 100, so as to guide the smoke to the outside of the battery tray 100 when thermal runaway occurs in the battery module 200, thereby ensuring the safety of the battery pack.

[0047] It can be understood that there may be one or more exhaust ducts 10c.

[0048] Therefore, refer to Figure 1 and Figure 2According to the battery tray 100 of the utility model, by arranging the first cooling duct 10b and the exhaust duct 10c on the side beam 10, the battery pack can quickly dissipate heat during fast charging, thereby improving the charging capacity of the battery pack, and the battery module 200 can discharge smoke and vapor when thermal runaway occurs, thereby improving the safety of the battery pack. At the same time, the thickness of the battery tray 100 will not be increased. The first cooling duct 10b is arranged on the side beam 10 without avoiding other structural components at the bottom of the battery tray 100, which is convenient for arrangement.

[0049] In some embodiments of the present invention, the first cooling duct 10 b and the exhaust duct 10 c are arranged at intervals along the height direction of the side beam 10 .

[0050] By arranging the first cooling pipe 10b and the exhaust pipe 10c at intervals along the height direction of the side beam 10, the cooling material and the smoke flow in different pipes, reducing the impact of thermal runaway on high and low pressure and other data collection.

[0051] Specifically, the first cooling duct 10b may be located above the exhaust duct 10c, or the exhaust duct 10c may be located above the first cooling duct 10b, or the first cooling duct 10b and the exhaust duct 10c may be staggered along the height direction of the side beam 10, etc.

[0052] In some embodiments of the present invention, referring to Figure 3 The first cooling duct 10 b and the exhaust duct 10 c are arranged at intervals along the width direction of the side beam 10 .

[0053] By arranging the first cooling pipe 10b and the exhaust pipe 10c at intervals along the width direction of the side beam 10, the cooling material and the smoke flow in different pipes, reducing the impact of thermal runaway on high and low pressure and other data collection.

[0054] Specifically, the first cooling duct 10b may be located on a side close to the accommodating space 10a, or the exhaust duct 10c may be located on a side close to the accommodating space 10a, or the first cooling duct 10b and the exhaust duct 10c may be staggered along the width direction of the side beam 10, etc.

[0055] In some embodiments of the present invention, referring to Figure 3 The side beam 10 includes a first plate 11 and a second plate 12 . The first plate 11 is disposed adjacent to the battery module 200 . The first plate 11 has a cavity 11 a . The first cooling duct 10 b is disposed in the cavity 11 a . An exhaust duct is formed between the first plate 11 and the second plate 12 .

[0056] The first cooling pipe 10b is arranged in the cavity 11a of the first plate 11, which is convenient for the arrangement of the first cooling pipe 10b. The first plate 11 is arranged near the battery module 200, which is conducive to the heat exchange between the cooling material flowing through the first cooling pipe 10b and the battery module 200, thereby improving the cooling rate of the battery module 200. An exhaust pipe is formed between the first plate 11 and the second plate 12, which is convenient for production and manufacturing.

[0057] In some embodiments of the present invention, referring to Figure 3 , Figure 4 and Figure 5 At least one through hole 11b is provided on the first plate 11. The through hole 11b and the first cooling pipe 10b are spaced apart along the height direction of the first plate 11. The through hole 11b connects the accommodating space 10a of the battery tray 100 with the exhaust pipe.

[0058] The first plate 11 is provided with at least one through hole 11b connecting the storage space 10a of the battery tray 100 and the exhaust duct, so as to facilitate the exhaust of smoke in the storage space 10a into the exhaust duct. Specifically, there may be one or more through holes 11b. The through holes 11b and the first cooling duct 10b are arranged at intervals along the height direction of the first plate 11 to separate the first cooling duct 10b from the exhaust duct 10c.

[0059] Specifically, the through hole 11 b may be located above the first cooling pipe 10 b , or the first cooling pipe 10 b may be located above the through hole 11 b , or the through hole 11 b and the first cooling pipe 10 b may be alternately arranged.

[0060] In some implementations, the through hole 11b is disposed close to the explosion-proof valve of the battery module 200 to shorten the flow path of the smoke. Further, the through hole 11b is disposed opposite to the explosion-proof valve. Preferably, there are multiple through holes 11b, and each through hole 11b corresponds to an explosion-proof valve.

[0061] It is understandable that the heat in the battery module 200 is mainly concentrated at the pole ear near the pole 201. In order to increase the cooling rate, the first cooling pipe 10b can be arranged near the pole 201. In the present application, the pole 201 is located at the top of the battery module 200, and the explosion-proof valve is located at the side of the battery module 200 near the bottom. Therefore, the first cooling pipe 10b is arranged above the through hole 11b.

[0062] In some embodiments of the present invention, referring to Figure 3 There are multiple first cooling pipes 10 b, and the multiple first cooling pipes 10 b are arranged at intervals along the height direction of the side beam 10 .

[0063] By providing a plurality of first cooling pipes 10 b along the height direction of the side beam 10 , the partitions between the plurality of first cooling pipes 10 b can enhance the structural strength of the side beam 10 in the width direction.

[0064] In some embodiments, the plurality of first cooling pipes 10b may be a plurality of pipes disposed in the cavity 11a, or a plurality of partitions may be disposed in the cavity 11a along the height direction of the side beam 10 to separate the cavity 11a into a plurality of first cooling pipes 10b.

[0065] In some embodiments of the present invention, referring to Figure 5 , multiple first cooling pipes 10b are connected to each other.

[0066] The plurality of first cooling pipes 10b are interconnected, which is convenient for production and manufacturing and is beneficial to the circulation of the cooling material.

[0067] It can be understood that the cooling substance can be a liquid, such as water.

[0068] Of course, the present application is not limited thereto; in other implementations, the plurality of first cooling pipes 10b may not be connected to each other, or each first cooling pipe 10b may be connected to one or two other first cooling pipes 10b, and so on.

[0069] In some embodiments of the present invention, referring to Figure 3 There are multiple exhaust ducts 10c, and the multiple exhaust ducts 10c are arranged at intervals along the height direction of the side beam 10.

[0070] By providing a plurality of exhaust ducts 10 c along the height direction of the side beam 10 , the partitions between the plurality of exhaust ducts 10 c can enhance the structural strength of the side beam 10 in the width direction.

[0071] In some embodiments, the plurality of exhaust ducts 10 c may be a plurality of ducts spaced apart in the height direction of the side beam 10 , or may be formed by partitioning by a plurality of partition ribs 13 .

[0072] In some embodiments of the present invention, referring to Figure 3 The second plate 12 includes a third plate 121 and a fourth plate 122 connected at a certain angle, and the first plate 11 is connected to the third plate 121 and the fourth plate 122 respectively to form an exhaust duct with a triangular cross-section with the third plate 121 and the fourth plate 122.

[0073] The first plate 11 is respectively connected to the third plate 121 and the fourth plate 122 which are connected at a certain angle to form an exhaust duct with a triangular cross section, thereby improving the structural stability of the side beam 10 .

[0074] The third plate 121 and the fourth plate 122 may form an acute angle, a right angle or an obtuse angle. In the present application, in order to allow the first plate 11 to fully contact the battery module 200, the first plate 11 may be arranged parallel to the side of the battery module 200, or be inclined at a small angle. In order to improve the stability of the side beam 10, the third plate 121 is arranged parallel to the bottom surface of the battery module 200, or be inclined at a small angle. The fourth plate 122 is connected to the third plate 121 and the first plate 11 at an acute angle.

[0075] Of course, the present application is not limited thereto; in other implementations, the first plate 11 and the second plate 12 may form an exhaust duct having a quadrilateral, polygonal, or other cross-section.

[0076] In some embodiments of the present invention, referring to Figure 3 The side beam 10 further includes at least one partition rib 13, which is disposed along an extension direction of the side beam 10 and connected to the first plate 11 and the second plate 12 to form a plurality of exhaust ducts.

[0077] By providing at least one partition rib 13 connected to the first plate 11 and the second plate 12 , the structural strength between the first plate 11 and the second plate 12 is improved.

[0078] Multiple exhaust ducts can be arranged along the width direction of the side beam 10, or along the height direction of the side beam 10. In the present application, multiple exhaust ducts are arranged along the height direction of the side beam 10, which improves the structural strength of the side beam 10 and enhances the protection of the battery module 200 by the side beam 10.

[0079] The multiple exhaust pipes may be interconnected, in which case the through hole 11b only needs to be connected to one of the exhaust pipes; the multiple exhaust pipes may also be isolated from each other, in which case each exhaust pipe needs to be connected to one through hole 11b.

[0080] In some embodiments of the present invention, referring to Figure 3 , at least one dividing rib 13 is arranged at a certain angle to the horizontal plane.

[0081] The separation ribs 13 are arranged at a certain angle to the horizontal plane, so that when the side beam 10 is hit laterally, the separation ribs 13 can improve the structural strength of the side beam 10 and play a certain buffering role, thereby extending the service life of the side beam 10.

[0082] In some embodiments, each of the separation ribs 13 is arranged at a certain angle with the horizontal plane. Specifically, the separation ribs 13 are arranged at an acute angle with the horizontal plane.

[0083] In some embodiments of the present invention, referring to Figure 3 and Figure 4A second cooling pipe 20a is provided on the bottom plate 20, and the second cooling pipe 20a is connected to the first cooling pipe 10b.

[0084] The second cooling channel is provided on the bottom plate 20, which improves the heat dissipation rate of the battery module 200 and further improves the charging capacity of the battery pack. The second cooling channel 20a is connected to the first cooling channel 10b, and only one inlet 10b1 and one outlet 10b3 can be provided. The cooling material can exchange heat with the battery module 200 along the first cooling channel and the second cooling channel, so that the cooling material can fully exchange heat with the battery module 200, while reducing the number of inlets 10b1 and outlets 10b3, simplifying the structure.

[0085] Of course, the present application is not limited to this; in other implementations, the first cooling channel and the second cooling channel may also be disconnected and independent of each other.

[0086] According to the power battery pack 1000 of the second embodiment of the utility model, refer to Figure 1 , Figure 2 and Figure 4 , including the battery tray 100 and the battery module 200 in the above embodiment, and the battery module 200 is installed in the accommodating space 10a.

[0087] According to the power battery pack 1000 of the embodiment of the utility model, the charging capacity of the power battery pack 1000 is improved by adopting the battery tray 100 in the above embodiment, and the use safety of the power battery pack 1000 is improved when thermal runaway occurs in the battery module 200. At the same time, the thickness of the power battery pack 1000 is not increased, the structure of the battery pack is simplified, and the production efficiency is improved.

[0088] According to some embodiments of the present invention, at least one side of the battery module 200 is disposed in close contact with the side beam 10 .

[0089] By fitting at least one side of the battery module 200 to the side beam 10 , heat exchange between the cooling material in the first cooling pipe 10 b and the battery module 200 is facilitated, thereby improving the efficiency of heat exchange.

[0090] In some embodiments, both sides of the battery module 200 are fitted with the side beams 10 to further improve the efficiency of heat exchange.

[0091] According to some embodiments of the present invention, the side beam 10 is provided with at least one through hole 11b connecting the accommodating space 10a and the exhaust duct 10c; the battery module 200 includes an explosion-proof valve, and the through hole 11b at least partially overlaps with the projection of the explosion-proof valve on the side beam 10.

[0092] By at least partially overlapping the through hole 11b with the projection of the explosion-proof valve on the side beam 10, when thermal runaway occurs in the battery module 200, smoke can directly enter the exhaust duct 10c through the through hole 11b from the explosion-proof valve, thereby shortening the exhaust path and improving the exhaust efficiency.

[0093] In some embodiments, the projection of the through hole 11 b and the explosion-proof valve on the side beam 10 may partially overlap, for example, overlap by 1 / 2, overlap by 2 / 3, overlap by 3 / 4, etc., or may completely overlap.

[0094] According to the vehicle 10000 of the third aspect of the utility model, Figure 6 , including the power battery pack 1000 in the above embodiment.

[0095] According to the vehicle 10000 of the embodiment of the utility model, by adopting the power battery pack 1000 in the above embodiment, the performance and safety of the vehicle 10000 are improved, and at the same time, the structure of the vehicle 10000 is simplified and the production efficiency is improved.

[0096] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0097] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or means that the first feature is lower in level than the second feature.

[0099] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 representations 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 one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0100] 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 battery tray, comprising a side beam (10) and a bottom plate (20), wherein the side beam (10) and the bottom plate (20) are used to form a receiving space (10a) for receiving a battery module (200), characterized in that: The side beam (10) comprises: a first cooling pipe (10b), the first cooling pipe (10b) comprising an inlet (10b1), a first pipe (10b2) and an outlet (10b3), the first pipe (10b2) being connected to the inlet (10b1) and the outlet (10b3), the inlet (10b1) being used to input a cooling substance, the cooling substance being output from the outlet (10b3) after passing through the first pipe (10b2) to perform heat exchange with the battery module (200); An exhaust duct (10c), wherein the exhaust duct (10c) communicates with the accommodation space (10a) and the outside of the battery tray.

2. The battery tray according to claim 1, characterized in that: The first cooling pipe (10b) and the exhaust pipe (10c) are arranged at intervals along the height direction of the side beam (10).

3. The battery tray according to claim 1, characterized in that: The first cooling pipe (10b) and the exhaust pipe (10c) are arranged at intervals along the width direction of the side beam (10).

4. The battery tray according to claim 3, characterized in that: The side beam (10) comprises a first plate (11) and a second plate (12), wherein the first plate (11) is arranged adjacent to the battery module (200), the first plate (11) has a cavity (11a), the first cooling pipe (10b) is arranged in the cavity (11a), and the exhaust pipe is formed between the first plate (11) and the second plate (12).

5. The battery tray according to claim 4, characterized in that: At least one through hole (11b) is provided on the first plate (11), and the through hole (11b) and the first cooling pipe (10b) are arranged at intervals along the height direction of the first plate (11), and the through hole (11b) connects the accommodating space (10a) of the battery tray with the exhaust pipe.

6. The battery tray according to claim 3, characterized in that: There are a plurality of the first cooling pipes (10b), and the plurality of the first cooling pipes (10b) are arranged at intervals along the height direction of the side beam (10).

7. The battery tray according to claim 6, characterized in that: The plurality of first cooling pipes (10b) are interconnected.

8. The battery tray according to claim 3, characterized in that: There are a plurality of exhaust ducts (10c), and the plurality of exhaust ducts (10c) are arranged at intervals along the height direction of the side beam (10).

9. The battery tray according to claim 4, characterized in that: The second plate (12) comprises a third plate (121) and a fourth plate (122) connected at a certain angle, and the first plate (11) is connected to the third plate (121) and the fourth plate (122) respectively, so as to form the exhaust duct with a triangular cross-section together with the third plate (121) and the fourth plate (122).

10. The battery tray according to claim 4, characterized in that: The side beam (10) further comprises at least one dividing rib (13), wherein the dividing rib (13) is arranged along the extension direction of the side beam (10) and is connected to the first plate (11) and the second plate (12) to form a plurality of exhaust ducts.

11. The battery tray according to claim 10, characterized in that: At least one of the separation ribs (13) is arranged at a certain angle to the horizontal plane.

12. The battery tray according to any one of claims 1 to 11, characterized in that: A second cooling pipe (20a) is provided on the bottom plate (20), and the second cooling pipe (20a) is connected to the first cooling pipe (10b).

13. A power battery pack, characterized in that: include: The battery tray (100) according to any one of claims 1 to 12; A battery module (200), the battery module (200) being installed in the accommodation space (10a).

14. The power battery pack according to claim 13, characterized in that: At least one side of the battery module (200) is arranged in close contact with the side beam (10).

15. The power battery pack according to claim 13, characterized in that: The side beam (10) is provided with at least one through hole (11b) connecting the accommodating space (10a) and the exhaust pipe; The battery module (200) comprises an explosion-proof valve, and the through hole (11b) at least partially overlaps with a projection of the explosion-proof valve on the side beam (10).

16. A vehicle, characterized in that: A power battery pack (1000) comprising any one of claims 13 to 15.

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