CN222601091U - Battery tray, power battery pack and vehicle - Google Patents

Abstract

The utility model discloses a battery tray, a power battery pack and a vehicle. 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 a 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 a cooling material. The cooling material is output from the outlet after passing through the first pipe to exchange heat with the battery module. The exhaust pipe connects the storage space and the outside of the battery tray. The battery tray can ensure rapid heat dissipation and smoke drainage of the battery pack. At the same time, it will not increase the thickness of the battery tray, which is conducive to the arrangement of the cooling channel.

Description

Battery tray, power battery pack and vehicle

Technical Field

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

Background

The battery pack generates a large amount of heat during use, particularly during rapid charging. If the temperature is not reduced in time, the charging capability of the battery pack can be affected. When the battery pack is out of control in use, a large amount of high-temperature combustible gas can be released, if pressure release is not timely carried out, the air pressure in the battery pack can be rapidly increased, the upper cover of the battery pack is flushed, and unsafe accidents are easily caused. In the related art, the cooling plate is arranged at the bottom of the battery pack to cool the battery pack so as to ensure the charging capability of the battery pack, and the exhaust pipeline is arranged on the bottom plate of the battery tray so as to drain out smoke when the battery pack is out of control.

However, the provision of the cooling plate at the bottom of the battery pack and the exhaust duct on the bottom plate of the battery tray increases the thickness of the bottom plate, and at the same time, is disadvantageous in the flow passage arrangement of the cooling plate.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the battery tray which can ensure the rapid heat dissipation and smoke drainage of the battery pack, and meanwhile, the thickness of the battery tray is not increased, so that the arrangement of cooling runners is facilitated.

The utility model also aims to provide a power battery pack with the battery tray.

The utility model also aims to provide a vehicle with the power battery pack

According to an embodiment of the first aspect of the utility model, the battery tray comprises a boundary beam and a bottom plate, wherein the boundary beam and the bottom plate are used for forming a containing space for containing the battery module, the boundary beam comprises a first cooling pipeline and an exhaust pipeline, the first cooling pipeline comprises an inlet, a first pipeline and an outlet, the first pipeline is communicated with the inlet and the outlet, the inlet is used for inputting cooling substances, the cooling substances are output from the outlet after passing through the first pipeline, heat exchange is carried out between the cooling substances and the battery module, and the exhaust pipeline is communicated with the containing space and the outside of the battery tray.

According to the battery tray, the first cooling pipeline and the exhaust pipeline are arranged on the side beam, so that the battery pack can quickly dissipate heat during quick charge, the charging capacity of the battery pack is improved, smoke and steam can be discharged when the battery module is out of control, the use safety of the battery pack is improved, meanwhile, the thickness of the battery tray cannot be increased, the first cooling pipeline is arranged on the side beam, other structural parts at the bottom of the battery tray are not required to be avoided, and the arrangement is convenient.

According to some embodiments of the utility model, the first cooling duct is spaced apart from the exhaust duct along the height of the side rail.

According to some embodiments of the utility model, the first cooling duct and the exhaust duct are disposed at intervals in a width direction of the side sill.

According to some embodiments of the utility model, the side rail includes a first plate and a second plate, the first plate being disposed adjacent to the battery module, the first plate having a cavity, the first cooling duct being disposed within the cavity, the first plate and the second plate forming an exhaust duct therebetween.

According to some embodiments of the utility model, the first plate is provided with at least one through hole, the through hole and the first cooling pipeline are arranged at intervals along the height direction of the first plate, and the through hole is communicated with the accommodating space of the battery tray and the exhaust pipeline.

According to some embodiments of the utility model, the first cooling pipes are a plurality of, and the plurality of first cooling pipes are arranged at intervals along the height direction of the side beam.

According to some embodiments of the utility model, the plurality of first cooling ducts are all in communication with each other.

According to some embodiments of the utility model, the plurality of exhaust pipes are arranged at intervals along the height direction of the side beam.

According to some embodiments of the utility model, the second plate comprises a third plate and a fourth plate connected at an angle, the first plate being 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.

According to some embodiments of the utility model, the side rail further comprises at least one partition rib disposed along an extension direction of the side rail and connected with the first plate and the second plate to form a plurality of exhaust ducts.

According to some embodiments of the utility model, the at least one separating rib is disposed at an angle to the horizontal.

According to some embodiments of the utility model, a second cooling duct is provided on the base plate, the second cooling duct being in communication with the first cooling duct.

A power battery pack according to a second aspect of the present utility model includes the battery tray and the battery module of the above embodiments, the battery module being mounted in the receiving space.

According to the power battery pack disclosed by the embodiment of the utility model, the battery tray in the embodiment is adopted, so that the charging capability of the power battery pack is improved, the use safety of the power battery pack is improved when the battery module is in thermal runaway, meanwhile, the thickness of the power battery pack is not increased, the structure of the battery pack is simplified, and the production efficiency is improved.

According to some embodiments of the utility model, at least one side of the battery module is attached to the side rail.

According to some embodiments of the utility model, the side beam is provided with at least one through hole for communicating the accommodating space with the exhaust pipeline, and the battery module comprises an explosion-proof valve, wherein the through hole is at least partially overlapped with the projection of the explosion-proof valve on the side beam.

A vehicle according to an embodiment of a third aspect of the present utility model includes the power battery pack in the above embodiment.

According to the vehicle provided by the embodiment of the utility model, the power battery pack in the embodiment is adopted, so that the use performance and the use safety of the vehicle are improved, the structure of the vehicle is simplified, and the production efficiency is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of a power cell according to an embodiment of the present utility model;

FIG. 2 is an expanded view of a side rail in a power cell according to an embodiment of the present utility model;

Fig. 3 is a sectional view of a battery tray according to an embodiment of the present utility model;

fig. 4 is a partial schematic structure of a power cell according to an embodiment of the present utility model;

fig. 5 is a sectional view of a first plate in a battery tray according to an embodiment of the present utility model;

Fig. 6 is a schematic structural view of a vehicle according to an embodiment of the present utility model.

Reference numerals:

A battery tray 100,

The side sill 10, the accommodation space 10a, the first cooling duct 10b, the inlet 10b1, the first duct 10b2, the outlet 10b3, the exhaust duct 10c, the first plate 11, the cavity 11a, the through hole 11b, the second plate 12, the third plate 121, the fourth plate 122, the partition rib 13,

A bottom plate 20, a second cooling duct 20a,

Power battery pack 1000, battery module 200, pole 201,

And a vehicle 10000.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

The battery tray 100, the power battery pack 1000, and the vehicle 10000 according to the embodiment of the utility model are described below with reference to the drawings.

Referring to fig. 1 and 2, a battery tray 100 according to an embodiment of the first aspect of the present utility model includes a side rail 10 and a bottom plate 20, the side rail 10 and the bottom plate 20 being used to form a receiving space 10a for receiving a battery module 200, the side rail 10 including a first cooling duct 10b and an exhaust duct 10c, the first cooling duct 10b including an inlet 10b1, a first duct 10b2, and an outlet 10b3, the first duct 10b2 communicating with the inlet 10b1 and the outlet 10b3, the inlet 10b1 being used to input a cooling substance, the cooling substance being outputted from the outlet 10b3 through the first duct 10b2 to exchange heat with the battery module 200, the exhaust duct 10c communicating with the receiving space 10a and the outside of the battery tray 100.

Specifically, referring to fig. 1 and 2, the battery tray 100 in the embodiment of the present utility model includes side rails 10 and a bottom plate 20 for supporting a battery module 200. The shape of the base plate 20 is not limited, and may be quadrangular, polygonal, circular, or the like. The side rail 10 is coupled to the circumference of the bottom plate 20 to form an accommodating space 10a with the side rail 10 for protecting the battery module 200 at the side. The side rail 10 may form an angle with the bottom plate 20, for example, the side rail 10 may form an acute angle, a right angle, an obtuse angle, etc. with the bottom plate 20. Preferably, the angle between the side rail 10 and the bottom plate 20 is a right angle, so that the receiving space 10a can be fully utilized, and the volume of the battery tray 100 is reduced.

The side sill 10 includes a first cooling duct 10b, the first cooling duct 10b includes an inlet 10b1, an outlet 10b3, and a first duct 10b2 communicating the inlet 10b1 and the outlet 10b3, and a cooling material enters the first duct 10b2 through the inlet 10b1, exchanges heat with the battery module 200 in the first duct 10b2, and is then output through the outlet 10b3, taking away heat of the battery module 200, thereby cooling the battery module 200.

In some implementations, the inlet 10b1 and the outlet 10b3 may be provided on the edge beam 10 or at other locations of the battery tray 100. For example, one of the inlet 10b1 and the outlet 10b3 may be provided on the side sill 10, or both the inlet 10b1 and the outlet 10b3 may be provided at other positions of the battery tray 100. The first duct 10b2 may be linear, folded, curved, etc. The first duct 10b2 may be one or two or more.

The boundary beam 10 further comprises an exhaust pipe 10c, and the exhaust pipe 10c is communicated with the accommodating space 10a and the outside of the battery tray 100, so that smoke is guided to the outside of the battery tray 100 when the battery module 200 is out of control, and the use safety of the battery pack is ensured.

It is understood that the exhaust duct 10c may be one or two or more.

Therefore, referring to fig. 1 and 2, according to the battery tray 100 of the present utility model, by providing the first cooling duct 10b and the exhaust duct 10c on the side sill 10, the battery pack can rapidly dissipate heat during rapid charging, improving the charging capability of the battery pack, and the battery module 200 can exhaust smoke when thermal runaway occurs, improving the use safety of the battery pack, and at the same time, the thickness of the battery tray 100 is not increased, the first cooling duct 10b is arranged on the side sill 10 without avoiding other structural parts at the bottom of the battery tray 100, thereby facilitating arrangement.

In some embodiments of the present utility model, the first cooling duct 10b and the exhaust duct 10c are disposed at intervals in the height direction of the side sill 10.

By arranging the first cooling duct 10b and the exhaust duct 10c at intervals along the height direction of the side beam 10 so that the circulation of cooling substances and smoke is in different ducts, the influence of thermal runaway on high and low pressure and other data acquisition is reduced.

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 in the height direction of the side sill 10, or the like.

In some embodiments of the present utility model, referring to fig. 3, the first cooling duct 10b and the exhaust duct 10c are disposed at intervals in the width direction of the side sill 10.

By arranging the first cooling duct 10b and the exhaust duct 10c at intervals along the width direction of the side beam 10 so that the circulation of cooling substances and smoke is in different ducts, the influence of thermal runaway on high and low pressure and other data acquisition is reduced.

Specifically, the first cooling duct 10b may be located at a side close to the accommodation space 10a, or the exhaust duct 10c may be located at a side close to the accommodation space 10a, or the first cooling duct 10b and the exhaust duct 10c may be staggered in the width direction of the side sill 10, or the like.

In some embodiments of the present utility model, referring to fig. 3, the side sill 10 includes a first plate 11 and a second plate 12, the first plate 11 being disposed adjacent to the battery module 200, the first plate 11 having a cavity 11a, a first cooling duct 10b being disposed within the cavity 11a, and an exhaust duct being formed between the first plate 11 and the second plate 12.

The first cooling duct 10b is provided in the cavity 11a of the first plate 11, facilitating the arrangement of the first cooling duct 10 b. The first plate 11 is disposed adjacent to the battery module 200, facilitates heat exchange between the cooling material flowing through the first cooling duct 10b and the battery module 200, and improves the cooling rate of the battery module 200. An exhaust duct is formed between the first plate 11 and the second plate 12, which is convenient for manufacturing.

In some embodiments of the present utility model, referring to fig. 3, 4 and 5, at least one through hole 11b is provided in the first plate 11, the through hole 11b and the first cooling duct 10b are spaced apart in the height direction of the first plate 11, and the through hole 11b communicates the receiving space 10a of the battery tray 100 with the exhaust duct.

The first plate 11 is provided with at least one through hole 11b communicating the accommodating space 10a of the battery tray 100 with the exhaust duct, so that the exhaust gas in the accommodating space 10a is conveniently discharged into the exhaust duct. Specifically, the through holes 11b may be one or two or more. The through holes 11b are spaced apart from the first cooling duct 10b in the height direction of the first plate 11 to separate the first cooling duct 10b from the exhaust duct 10 c.

Specifically, the through holes 11b may be located above the first cooling pipes 10b, or the first cooling pipes 10b may be located above the through holes 11b, or the through holes 11b and the first cooling pipes 10b may be staggered.

In some implementations, the through-hole 11b is provided near the explosion-proof valve of the battery module 200 to shorten the flow path of the exhaust gas. Further, the through hole 11b is provided opposite to the explosion-proof valve. Preferably, the number of through holes 11b is plural, and each through hole 11b corresponds to one explosion-proof valve.

It is understood that heat is mainly accumulated in the battery module 200 near the tab of the pole 201, and the first cooling duct 10b may be disposed near the pole 201 in order to increase the cooling rate. In the present embodiment, the post 201 is positioned at the top of the battery module 200, and the explosion-proof valve is positioned at a position near the bottom of the side of the battery module 200, so that the first cooling duct 10b is disposed above the through-hole 11 b.

In some embodiments of the present utility model, referring to fig. 3, the first cooling pipes 10b are provided in plurality, and the plurality of first cooling pipes 10b are spaced apart along the height direction of the side beam 10.

By providing the plurality of first cooling ducts 10b in the height direction of the side sill 10, the partition between the plurality of first cooling ducts 10b can enhance the structural strength of the side sill 10 in the width direction.

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

In some embodiments of the present utility model, referring to fig. 5, a plurality of first cooling pipes 10b are all in communication with each other.

The plurality of first cooling pipes 10b are communicated with each other, so that the production and the manufacture are facilitated, and the circulation of cooling substances is facilitated.

It will be appreciated that the cooling substance may be a liquid, such as water or the like.

Of course, the application is not limited thereto, and in other implementations, the plurality of first cooling pipes 10b may not all be in communication, or each first cooling pipe 10b may be in communication with the remaining one or two first cooling pipes 10b, etc.

In some embodiments of the present utility model, referring to fig. 3, the exhaust duct 10c is provided in plurality, and the plurality of exhaust ducts 10c are disposed at intervals along the height direction of the side sill 10.

By providing a plurality of exhaust ducts 10c in the height direction of the side sill 10, the partition between the plurality of exhaust ducts 10c can enhance the structural strength of the side sill 10 in the width direction.

In some embodiments, the plurality of exhaust pipes 10c may be a plurality of pipes spaced apart in the height direction of the side rail 10, or may be partitioned by a plurality of partition ribs 13.

In some embodiments of the present utility model, referring to fig. 3, the second plate 12 includes a third plate 121 and a fourth plate 122 connected at an included angle, and the first plate 11 is connected to the third plate 121 and the fourth plate 122, respectively, to form an exhaust duct having a triangular cross section with the third plate 121 and the fourth plate 122.

The first plate 11 is connected with the third plate 121 and the fourth plate 122 which are connected at a certain included angle respectively to form an exhaust pipeline with a triangular section, so that the structural stability of the boundary beam 10 is improved.

The third plate 121 and the fourth plate 122 may form an acute angle, a right angle, or an obtuse angle. In the present embodiment, in order to allow the first plate 11 to sufficiently contact the battery module 200, the first plate 11 may be disposed in parallel with the side surface of the battery module 200 or inclined at a small angle, and in order to improve the stability of the side sill 10, the third plate 121 may be disposed in parallel with the bottom surface of the battery module 200 or inclined at a small angle, and the fourth plate 122 may be connected to both the third plate 121 and the first plate 11 at an acute angle.

Of course, the present application is not limited thereto, and in other implementations, the first plate 11 and the second plate 12 may form an exhaust duct having a quadrangular, polygonal, etc. cross section.

In some embodiments of the present utility model, referring to fig. 3, the side sill 10 further includes at least one partition rib 13, and the partition rib 13 is disposed along an extension direction of the side sill 10 and is connected with the first plate 11 and the second plate 12 to form a plurality of exhaust ducts.

By providing at least one spacer bar 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.

The plurality of exhaust ducts may be disposed along the width direction of the side sill 10 or along the height direction of the side sill 10. In the scheme of the application, the plurality of exhaust pipelines are arranged along the height direction of the boundary beam 10, so that the structural strength of the boundary beam 10 is improved, and the protection of the boundary beam 10 to the battery module 200 is enhanced.

The plurality of exhaust pipes may be mutually communicated, and in this case, the through hole 11b may be communicated with only one of the exhaust pipes, and the plurality of exhaust pipes may be mutually isolated, and in this case, each of the exhaust pipes may be communicated with one of the through holes 11 b.

In some embodiments of the utility model, referring to fig. 3, at least one separating rib 13 is disposed at an angle to the horizontal.

The separation rib 13 forms a certain included angle with the horizontal plane, so that when the boundary beam 10 is impacted laterally, the structural strength of the boundary beam 10 is improved, a certain buffer effect is achieved, and the service life of the boundary beam 10 is prolonged.

In some embodiments, each of the separation ribs 13 is disposed at an angle to the horizontal. Specifically, the separation rib 13 is disposed at an acute angle to the horizontal plane.

In some embodiments of the present utility model, referring to fig. 3 and 4, a second cooling duct 20a is provided on the base plate 20, and the second cooling duct 20a communicates with the first cooling duct 10 b.

The second cooling passage is provided on the bottom plate 20 to improve the heat dissipation rate of the battery module 200 and further improve the charging ability of the battery pack. The second cooling duct 20a is in communication with the first cooling duct 10b, and only one inlet 10b1 and one outlet 10b3 may be provided, and the cooling material may be heat-exchanged with the battery module 200 along the first and second cooling channels, so that the cooling material may be sufficiently heat-exchanged with the battery module 200, while reducing the number of the inlet 10b1 and the outlet 10b3, and simplifying the structure.

Of course, the application is not limited thereto, and in other implementations, the first cooling channel and the second cooling channel may not be in communication and may be independent of each other.

The power battery pack 1000 according to the second aspect of the embodiment of the present utility model, referring to fig. 1, 2 and 4, includes the battery tray 100 and the battery module 200 of the above-described embodiment, and the battery module 200 is mounted in the receiving space 10a.

According to the power battery pack 1000 of the embodiment of the present utility model, by adopting the battery tray 100 in the above embodiment, the charging capability of the power battery pack 1000 is improved, and when thermal runaway occurs in the battery module 200, the use safety of the power battery pack 1000 is improved, and 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.

According to some embodiments of the present utility model, at least one side of the battery module 200 is disposed to be attached to the side rail 10.

By attaching at least one side of the battery module 200 to the side rail 10, the cooling material in the first cooling duct 10b is conveniently heat-exchanged with the battery module 200, and the heat-exchanging efficiency is improved.

In some embodiments, both sides of the battery module 200 are attached to the side rails 10, thereby further improving the heat exchange efficiency.

According to some embodiments of the present utility model, the side sill 10 is provided with at least one through hole 11b communicating the receiving space 10a with the exhaust duct 10c, and the battery module 200 includes an explosion-proof valve, the through hole 11b being at least partially overlapped with the projection of the explosion-proof valve on the side sill 10.

Through the projection of the through hole 11b and the explosion-proof valve on the boundary beam 10 at least partially coincides, when the battery module 200 is in thermal runaway, smoke can directly enter the exhaust pipeline 10c through the through hole 11b by the explosion-proof valve, so that an exhaust path is shortened, and the exhaust efficiency is improved.

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

According to a vehicle 10000 of an embodiment of the third aspect of the present utility model, referring to fig. 6, a power battery pack 1000 in the above-described embodiment is included.

According to the vehicle 10000 of the embodiment of the utility model, by adopting the power battery pack 1000 in the embodiment, the use performance and the use safety of the vehicle 10000 are improved, and meanwhile, the structure of the vehicle 10000 is simplified, and the production efficiency is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication, directly connected, or indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (16)

1. Battery tray, comprising a side rail (10) and a bottom plate (20), said side rail (10) and said bottom plate (20) being adapted to form an accommodation space (10 a) accommodating a battery module (200), characterized in that said side rail (10) comprises:

A first cooling pipe (10 b), wherein the first cooling pipe (10 b) comprises an inlet (10 b 1), a first pipe (10 b 2) and an outlet (10 b 3), the first pipe (10 b 2) is communicated with the inlet (10 b 1) and the outlet (10 b 3), the inlet (10 b 1) is used for inputting cooling substances, and the cooling substances are output from the outlet (10 b 3) after passing through the first pipe (10 b 2) and exchange heat with the battery module (200);

And an exhaust duct (10 c), wherein the exhaust duct (10 c) communicates the accommodating space (10 a) with the outside of the battery tray.

2. The battery tray according to claim 1, wherein the first cooling duct (10 b) and the exhaust duct (10 c) are disposed at intervals in the height direction of the side sill (10).

3. The battery tray according to claim 1, wherein the first cooling duct (10 b) and the exhaust duct (10 c) are disposed at intervals in the width direction of the side sill (10).

4. A battery tray according to claim 3, wherein the side rail (10) comprises a first plate (11) and a second plate (12), the first plate (11) being arranged adjacent to the battery module (200), the first plate (11) having a cavity (11 a), the first cooling duct (10 b) being arranged in the cavity (11 a), the exhaust duct being formed between the first plate (11) and the second plate (12).

5. The battery tray according to claim 4, wherein at least one through hole (11 b) is provided in the first plate (11), the through hole (11 b) and the first cooling duct (10 b) are disposed at intervals along the height direction of the first plate (11), and the through hole (11 b) communicates with the accommodating space (10 a) of the battery tray and the exhaust duct.

6. A battery tray according to claim 3, wherein the first cooling ducts (10 b) are plural, and the plural first cooling ducts (10 b) are arranged at intervals in the height direction of the side sill (10).

7. The battery tray according to claim 6, wherein a plurality of the first cooling pipes (10 b) are all in communication with each other.

8. A battery tray according to claim 3, wherein the number of the exhaust ducts (10 c) is plural, and the plural exhaust ducts (10 c) are arranged at intervals in the height direction of the side sill (10).

9. The battery tray according to claim 4, wherein the second plate (12) includes a third plate (121) and a fourth plate (122) connected at an included angle, and the first plate (11) is connected to the third plate (121) and the fourth plate (122), respectively, to form the exhaust duct having a triangular cross section with the third plate (121) and the fourth plate (122).

10. The battery tray according to claim 4, wherein the side rail (10) further comprises at least one partition rib (13), the partition rib (13) being disposed along the extending direction of the side rail (10) and being connected with the first plate (11) and the second plate (12) to form a plurality of the exhaust ducts.

11. Battery tray according to claim 10, characterized in that at least one of the separating ribs (13) is arranged at an angle to the horizontal.

12. The battery tray according to any one of claims 1-11, wherein a second cooling duct (20 a) is provided on the bottom plate (20), the second cooling duct (20 a) being in communication with the first cooling duct (10 b).

13. A power cell pack comprising:

the battery tray (100) of any of claims 1-12;

and a battery module (200), wherein the battery module (200) is mounted in the accommodating space (10 a).

14. The power battery pack according to claim 13, wherein at least one side of the battery module (200) is provided in contact with the side sill (10).

15. The power battery pack according to claim 13, wherein the side sill (10) is provided with at least one through hole (11 b) communicating the accommodation space (10 a) with the exhaust duct;

The battery module (200) comprises an explosion-proof valve, and the projection of the through hole (11 b) and the explosion-proof valve on the side beam (10) at least partially coincide.

16. A vehicle characterized by comprising a power battery pack (1000) according to any one of claims 13-15.