CN221466698U

CN221466698U - Battery pack box body assembly, battery pack and electric equipment

Info

Publication number: CN221466698U
Application number: CN202322911604.9U
Authority: CN
Inventors: 廖永波; 姚莉
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2023-10-27
Filing date: 2023-10-27
Publication date: 2024-08-02
Anticipated expiration: 2033-10-27

Abstract

The application discloses a battery pack box assembly, a battery pack and electric equipment, wherein the battery pack box assembly comprises: the outer frame is internally provided with a battery cell accommodating cavity; the support plate is connected with the outer frame, is accommodated in the battery cell accommodating cavity and divides the battery cell accommodating cavity into a plurality of sub battery cell accommodating cavities, and two adjacent sub battery cell accommodating cavities are respectively positioned at two sides of the support plate in the thickness direction; wherein the support plate and the outer frame are constructed as an integral molding. According to the battery pack box body component provided by the embodiment of the application, the battery pack box body component adopts an integrated structure, so that the welding process of the battery pack box body component is reduced, and the assembly efficiency and the overall strength of the battery pack box body component are improved.

Description

Battery pack box body assembly, battery pack and electric equipment

Technical Field

The application relates to the field of batteries, in particular to a battery pack box assembly, a battery pack and electric equipment.

Background

In the related art, a supporting plate of a battery is generally arranged between two adjacent layers of batteries, and when the battery is assembled, the battery and the supporting plate are assembled, and then the battery and the supporting plate are integrally arranged in a tray, or a single-layer battery is arranged in the tray and then the supporting plate is covered for sequential assembly, and multiple times of welding is needed between the supporting plate and a box body, so that the integral assembly of the battery pack is complex.

Disclosure of utility model

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide a battery pack case assembly, which adopts an integrated structure, reduces the welding process of the battery pack case assembly, and improves the assembly efficiency and the overall strength of the battery pack case assembly.

The application further provides a battery pack with the battery pack box body assembly.

The application further provides electric equipment with the battery pack.

According to an embodiment of the application, a battery pack case assembly includes: the outer frame is internally provided with a battery cell accommodating cavity; the support plate is connected with the outer frame, is accommodated in the battery cell accommodating cavity and divides the battery cell accommodating cavity into a plurality of sub battery cell accommodating cavities, and two adjacent sub battery cell accommodating cavities are respectively positioned at two sides of the support plate in the thickness direction; wherein the support plate and the outer frame are constructed as an integral molding.

According to the battery pack box body assembly provided by the embodiment of the application, the supporting plate of the battery pack box body assembly can be used for supporting a battery and dividing the battery cell accommodating cavity into a plurality of sub-battery cell accommodating cavities for installing the battery, and the supporting plate and the outer frame are constructed into an integral forming part, so that the integral strength of the battery pack box body assembly can be improved, meanwhile, the welding process of the battery pack box body assembly is omitted, and the number of parts in the battery pack box body assembly is reduced.

In some embodiments of the present application, a cooling flow path adapted to circulate a cooling medium is provided in the support plate, and heat exchange surfaces corresponding to two adjacent sub-cell accommodating cavities one to one are formed on two sides of the support plate in the thickness direction.

In some embodiments of the application, the outer frame is disposed around and formed with a first open end and a second open end; the battery pack case assembly further includes: the top plate is arranged at the first open end and is connected with the outer frame to close one end of the battery cell accommodating cavity; the bottom plate is arranged at the second open end and is connected with the outer frame to seal the other end of the battery cell accommodating cavity.

In some embodiments of the application, a cooling flow path is formed within the top plate and/or the bottom plate.

In some embodiments of the present application, the outer frame is provided with a water inlet port and a water outlet port which are communicated with the cooling flow path, and the water inlet port and the water outlet port are respectively arranged on the same side wall of the outer frame or on adjacent side walls of the outer frame or on side walls of the outer frame which are away from each other.

In some embodiments of the present application, at least a portion of the edge of the support plate is formed with a limiting plate extending in a thickness direction, at least a portion of the limiting plate being spaced apart from an inner wall of the outer frame to define a power distribution cavity adapted to receive a power distribution box.

In some embodiments of the present application, a first wall is disposed on the outer frame, and the water inlet port and the water outlet port are disposed on the first wall; the support plate includes: the first plate is connected with the inner wall of the outer frame, one side, on which the limiting plate is formed, of the first plate is a first side, the first side of the first plate and the first wall are arranged at intervals, a first cooling flow path is formed in the first plate, and the first plate is suitable for dividing the battery cell accommodating cavity into a plurality of sub battery cell accommodating cavities; the second plate is connected with the inner wall of the outer frame at one side in the first direction, two ends of the second plate in the second direction are respectively connected with the first wall and the first side of the first plate, and a second cooling flow path is formed in the second plate and is suitable for connecting the first cooling flow path with the water inlet interface; a third plate, wherein one side of the third plate in the first direction is connected with the inner wall of the outer frame, two ends of the third plate in the second direction are respectively connected with the first wall and the first side of the first plate, a third cooling flow path is formed in the third plate, and the third cooling flow path is suitable for connecting the first cooling flow path with the water outlet interface; wherein the second plate is spaced from the third plate in a first direction, the first side of the first plate and the two sides of the second plate and the third plate facing each other define the power distribution cavity.

In some embodiments of the present application, a first wall is disposed on the outer frame, and the water inlet port and the water outlet port are disposed on the first wall; the support plate includes: the first plate is connected with the inner wall of the outer frame, one side, on which the limiting plate is formed, of the first plate is a first side, the first side of the first plate and the first wall are arranged at intervals, a first cooling flow path is formed in the first plate, and the first plate is suitable for dividing the battery cell accommodating cavity into a plurality of sub battery cell accommodating cavities; the second plate is connected with the inner wall of the outer frame at one side in the first direction, two ends of the second plate in the second direction are respectively connected with the first wall and the first side of the first plate, and a second cooling flow path is formed in the second plate and is suitable for connecting the first cooling flow path with the water inlet interface and the water outlet interface; wherein a first side of the first plate and another side of the second plate in a first direction define the power distribution cavity.

In some embodiments of the present application, an avoidance gap that avoids the cooling flow path is formed on the limiting plate.

In some embodiments of the present application, the limiting plate is provided with a first reinforcing rib extending in a thickness direction.

In some embodiments of the present application, the outer peripheral wall of the outer frame is provided with tray lifting lugs fixedly connected to the body of the vehicle, the tray lifting lugs being configured as a plurality of tray lifting lugs arranged at intervals in the second direction.

The battery pack according to the embodiment of the present application is briefly described below.

The battery pack according to the embodiment of the application is provided with the battery pack box assembly and the battery of the embodiment, and the battery is constructed into a plurality of batteries which are respectively accommodated in the sub-battery cell accommodating cavities.

In some embodiments of the application, the battery pack case assembly has a top plate and a bottom plate; the battery pack further includes: and the heating film is arranged between the battery and the top plate and/or between the battery and the bottom plate.

The following briefly describes an electrical device according to an embodiment of the present application.

According to the embodiment of the application, the battery pack is arranged, so that the battery pack of the electric equipment is high in overall strength, welding process and structural member use are reduced, the overall structure of the battery pack is simplified, and assembly efficiency is improved.

Additional aspects and advantages of the application 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 application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1;

fig. 4 is a schematic structural view of an outer frame and a support plate according to an embodiment of the present application;

FIG. 5 is a schematic top view of FIG. 4;

FIG. 6 is a schematic view of the structure of the support of FIG. 4;

FIG. 7 is a schematic view of a structure of a support according to another embodiment of the present application;

Fig. 8 is a schematic cross-sectional view of fig. 4.

Reference numerals:

10. A battery pack case assembly; 11. an outer frame; 111. a first open end; 112. a second open end; 113. a water inlet port; 114. a water outlet interface; 115. a tray lifting lug; 116. a first wall; 12. a support plate; 121. a cooling flow path; 122. a power distribution cavity; 123. a first plate; 1231. a first cooling flow path; 124. a second plate; 1241. a second cooling flow path; 125. a third plate; 1251. a third cooling flow path; 126. a limiting plate; 1261. avoiding the notch; 1262. a first reinforcing rib; 13. a top plate; 14. a bottom plate; 20. a battery pack; 21. a battery; 22. a distribution box; 23. the film is heated.

Detailed Description

Embodiments of the present application 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 application.

The following describes a battery pack case assembly 10 according to an embodiment of the present application with reference to fig. 1 to 8, the battery pack case assembly 10 includes an outer frame 11 and a support plate 12, a battery cell accommodating chamber is formed in the outer frame 11, the support plate 12 is connected with the outer frame 11, the support plate 12 is accommodated in the battery cell accommodating chamber and divides the battery cell accommodating chamber into a plurality of sub-battery cell accommodating chambers, and two adjacent sub-battery cell accommodating chambers are respectively located at both sides of the support plate 12 in a thickness direction; wherein the support plate 12 and the outer frame 11 are constructed as an integral piece.

At present, a supporting plate of a battery is generally arranged between two adjacent layers of batteries, and when the battery is assembled, the battery and the supporting plate are assembled and then are integrally arranged in a tray, or a single-layer battery is arranged in the tray and then is covered by the supporting plate for sequential assembly, and the supporting plate and the box body are required to be welded for multiple times, so that the integral assembly of the battery pack is complex.

As shown in fig. 1 and 2, in particular, the battery pack case assembly 10 includes an outer frame 11 and a support plate 12, and a battery cell receiving chamber is formed in the outer frame 11, which can be used to assemble devices inside the battery pack 20. The support plates 12 may be disposed between two adjacent cells 21 to serve as support for the cells 21 and to separate the cells 21, and the support plates 12 may be spaced apart in the length direction or the width direction or the thickness direction of the battery pack 20, but are not limited thereto, and the support plates 12 may be arranged according to the actual battery pack 20 requirements. Further, the supporting plate 12 is accommodated in the battery cell accommodating cavity, and a part of the outer peripheral wall of the supporting plate 12 is connected with the outer frame 11, the supporting plate 12 can divide the battery cell accommodating cavity into a plurality of sub-battery cell accommodating cavities, and the plurality of sub-battery cell accommodating cavities can be used for assembling a plurality of batteries 21, so that a certain space is effectively provided for the installation of the batteries 21. In a specific embodiment, the outer frame 11 and the supporting plate 12 may be in an integral die-casting structure, the outer peripheral wall of the outer frame 11 is provided with a reinforcing structure to improve the overall strength of the outer frame 11, and the supporting plate 12 and the outer frame 11 are integrally die-cast and formed, so that the structural strength is high.

As shown in fig. 4 and 5, the supporting plate 12 and the outer frame 11 are configured as an integral molding, and the welding process between the supporting plate 12 and the outer frame 11 can be omitted by configuring the supporting plate 12 and the outer frame 11 as an integral molding, and the integral molding has higher structural strength, the structure of the supporting plate 12 is more stable, the number of parts inside the battery pack case assembly 10 is reduced, and the design of the battery pack case assembly 10 is optimized.

In short, the support plate 12 of the battery pack case assembly 10 of the present application can be used to support the battery 21 and divide the battery cell receiving chamber into a plurality of sub-battery cell receiving chambers for mounting the battery 21, and by constructing the support plate 12 and the outer frame 11 as an integral unit, the overall strength of the battery pack case assembly 10 can be improved, while omitting the welding process of the battery pack case assembly 10 and reducing the number of parts inside the battery pack case assembly 10.

As shown in fig. 5, in some embodiments of the present application, a cooling flow path 121 adapted to flow a cooling medium is formed in the support plate 12, the cooling flow path 121 is disposed inside the water cooling plate (as shown by a dotted line in fig. 5), and the cooling medium flows through the cooling flow path 121, so that the support plate 12 can cool or heat the adjacent battery 21, specifically, heat exchange surfaces are respectively formed on two sides of the support plate 12 in a thickness direction thereof, and can be disposed in one-to-one correspondence with the adjacent two sub-battery-cell accommodating cavities, the battery 21 is accommodated in the sub-battery-cell accommodating cavities, and the battery 21 can be attached to the heat exchange surfaces, thereby realizing a cooling effect of the support plate 12 on the battery 21, where the battery 21 may be a battery module or a battery cell. The cooling flow passage in the support plate 12 may be directly molded in the die casting process, and the sealing effect is good, or the flow passage 121 may be formed by die casting on the support plate 12, and a sealing plate covering the cooling flow passage may be provided on the support plate 12 to seal the cooling flow passage and form the cooling flow passage 121. Further, the cooling flow path 121 provided on the support plate 12 may simplify the overall structure of the battery pack case assembly 10, so as to integrate the liquid cooling plate inside the battery pack case assembly 10 with the support plate 12.

As shown in fig. 3 and 4, in some embodiments of the present application, the outer frame 11 is disposed around and formed with a first open end 111 and a second open end 112, the first open end 111 and the second open end 112 may be used for assembly of the battery 21, the battery pack case assembly 10 further includes a top plate 13 and a bottom plate 14, the top plate 13 is disposed at the first open end 111, the top plate 13 is connected with the outer frame 11 and closes one end of the battery cell receiving cavity, wherein the shape of the top plate 13 is matched with the shape of the outer frame 11, the top plate 13 and the outer frame 11 form a detachable connection through bolts and threads, or the top plate 13 and the outer frame 11 form a detachable connection through clamping and plugging, or the contact surface between the top plate 13 and the outer frame 11 is directly welded. The bottom plate 14 is disposed at the second open end 112, the bottom plate 14 is connected with the outer frame 11 and seals the other end of the battery cell accommodating cavity, and similarly, the shape of the bottom plate 14 is matched with the shape of the outer frame 11, the bottom plate 14 and the outer frame 11 form detachable connection through bolts and threads, or the bottom plate 14 and the outer frame 11 form detachable connection through clamping and inserting connection, or the contact surface between the bottom plate 14 and the outer frame 11 is directly welded and connected.

In some embodiments of the present application, the cooling flow paths 121 are formed in the top plate 13 or the bottom plate 14, or the cooling flow paths 121 are formed on both the top plate 13 and the bottom plate 14, so that the internal battery 21 can be cooled while the top plate 13 and the bottom plate 14 close the battery cell accommodating cavity, and the cooling effect of the battery 21 is greatly improved.

As shown in fig. 1, in some embodiments of the present application, a water inlet 113 and a water outlet 114 are disposed on the outer frame 11, the water inlet 113 and the water outlet 114 are respectively connected to the cooling flow path 121, the water inlet 113 and the water outlet 114 may implement circulation of the cooling medium, the water inlet 113 and the water outlet 114 may be disposed on the same side wall of the outer frame 11, or the water inlet 113 and the water outlet 114 may be disposed on two adjacent side walls of the outer frame 11, or the water inlet 113 and the water outlet 114 may be disposed on two side walls of the outer frame 11 facing away from each other, and the water inlet 113 and the water outlet 114 may be respectively connected to pipes adapted to circulate the cooling medium to input or output the cooling medium to the cooling flow path 121 through the pipes.

As shown in fig. 4 and 8, in some embodiments of the present application, a limiting plate 126 extending in a thickness direction of the battery pack case assembly 10 is formed at least at a portion of an edge of the supporting plate 12, at least a portion of the limiting plate 126 is spaced apart from an inner wall of the outer frame 11 to define a distribution chamber 122, the distribution chamber 122 may be used to accommodate a distribution box 22 electrically connected to the battery 21, in particular embodiments, the edge of the supporting plate 12 near the water inlet port 113 and the water outlet port 114 is spaced apart from the inner wall of the outer frame 11 to form the distribution chamber 122, further, the limiting plate 126 may be disposed at an edge of the distribution chamber 122, two ends of the limiting plate 126 are respectively connected to the outer frame 11, wherein a side of the limiting plate 126 facing the supporting plate 12 may abut against the battery 21, thereby limiting the battery 21, the distribution box 22 may be accommodated in the distribution chamber 122 and fixedly connected to the outer frame 11, and a high voltage wiring hole and a low voltage wiring hole corresponding to the distribution box 22 are formed in the outer frame 11, wherein an arrangement position of the distribution box 22 in the distribution chamber 122 may be adjusted according to practical requirements.

As shown in fig. 4 to 6, in some embodiments of the present application, a first wall 116 is provided on the outer frame 11, a water inlet 113 and a water outlet 114 are provided on the first wall 116, the support plate 12 includes a first plate 123, a second plate 124 and a third plate 125, the first plate 123 is connected to an inner wall of the outer frame 11, a side of the first plate 123 on which a limiting plate 126 is formed is defined as a first side, the first side of the first plate 126 is spaced apart from the first wall 116, a first cooling flow path 1231 is formed in the first plate 123, and the first plate 123 can divide the cell accommodating cavity into a plurality of sub-cell accommodating cavities. The second plate 124 is connected to the inner wall of the outer frame 11 at one side in the first direction, and two ends of the second plate 124 in the second direction are respectively connected to the first wall 116 and the first side of the first plate 123, wherein the first direction may be the width direction of the battery pack case assembly 10, and the second direction may be the length direction of the battery pack case assembly 10, and in a specific embodiment, the second plate 124 is integrally provided with the first plate 123. The second plate 124 has a second cooling flow path 1241 formed therein, and the second cooling flow path 1241 may connect the first cooling flow path 1231 with the water inlet port 113. One side of the third plate 125 in the first direction is connected to the inner wall of the outer frame 11, and both ends of the third plate 125 in the second direction are connected to the first wall 116 and the first side of the first plate 123, respectively, and in the embodiment, the third plate 125 is integrally provided with the first plate 123. The third cooling flow path 1251 is formed on the third plate 125, the third cooling flow path 1251 can connect the first cooling flow path 1231 with the water outlet 114, further, the second plate 124 and the third plate 125 are arranged at intervals in the first direction of the first plate 123, and the distribution cavity 122 for accommodating the distribution box 22 is defined on the first side of the first plate 123 and on two sides of the second plate 124 and the third plate 125 facing each other, so that a certain space is provided for assembling the distribution box 22, the water inlet 113 and the water outlet 114 are arranged on the first wall 116, and the distribution box 22 is fixedly connected with the first wall 116, so that the integrated arrangement of the internal parts of the battery pack 20 can be realized.

As shown in fig. 7, in other embodiments of the present application, a first wall 116 is disposed on the outer frame 11, a water inlet 113 and a water outlet 114 are disposed on the first wall 116, the support plate 12 includes a first plate 123 and a second plate 124a, the first plate 123 is connected to an inner wall of the outer frame 11, a side of the first plate 123 where the limiting plate 126 is formed is defined as a first side, the first side of the first plate 126 is spaced from the first wall 116, a first cooling flow path 1231 is formed in the first plate 123, and the first plate 123 can divide the cell accommodating cavity into a plurality of sub-cell accommodating cavities. The second plate 124a is connected to the inner wall of the outer frame 11 at one side in the first direction, and both ends of the second plate 124a in the second direction are connected to the first wall 116 and the first side of the first plate 123, respectively, and in the embodiment, the second plate 124a is integrally provided with the first plate 123. The second plate 124a has a second cooling flow path formed therein, and the second cooling flow path may connect the first cooling flow path 1231 with the water inlet 113 and the water outlet 114, and further, a first side toward which the first plate 123 faces and the other side of the second plate 124a in the first direction define a distribution chamber 122 for accommodating the distribution box 22.

In some embodiments of the present application, the limiting plate 126 is further formed with an avoidance gap 1261, and the avoidance gap 1261 may be used to avoid the cooling flow path 121, so that the cooling flow path 121 may pass through the avoidance gap 1261 and be communicated with the water inlet port 113 and the water outlet port 114. The limiting plate 126 is provided with the first reinforcing rib 1262 extending in the thickness direction, and the first reinforcing rib 1262 can improve the overall strength of the limiting plate 126, so that the limiting plate 126 can more effectively limit the battery 21.

As shown in fig. 1 and 2, in some embodiments of the present application, the outer peripheral wall of the outer frame 11 is provided with tray lugs 115, and the tray lugs 115 may be fixedly connected with the body of the vehicle, thereby fixing the battery pack tray assembly 10 on the body, wherein the tray lugs 115 may be configured in plurality, and the plurality of tray lugs 115 may be disposed at intervals in the length direction, and the stability of the coupling between the battery pack tray assembly 10 and the body may be improved by providing the plurality of tray lugs 115, and in particular, the tray lugs 115 and the outer frame 11 may be integrally die-cast.

The battery pack 20 according to the embodiment of the present application is briefly described below.

The battery pack 20 according to the embodiment of the present application is provided with the battery pack case assembly 10 and the battery 21 of the above embodiment, and the battery 21 is configured in plurality and is respectively accommodated in the sub-cell accommodation chambers, and since the battery pack 20 of the embodiment of the present application is provided with the battery pack case assembly 10 and the battery 21 of the above embodiment, the overall strength inside the battery pack 20 is high, and the welding process and the use of structural members of the battery pack 20 are reduced, the overall structure of the battery pack 20 is simplified, and the assembly efficiency of the battery pack 20 is improved.

As shown in fig. 3, in some embodiments of the present application, the battery pack case assembly 10 has a top plate 13 and a bottom plate 14, the battery 21 is fixedly connected to the top plate 13 and the bottom plate 14, in a specific embodiment, the battery 21 is fixedly bonded to the top plate 13 and the bottom plate 14, the battery pack 20 further includes a heating film 23, the heating film 23 is disposed between the battery 21 and the top plate 13 or between the battery 21 and the bottom plate 14, or the heating film 23 is simultaneously disposed between the battery 21 and the top plate 13 or between the battery 21 and the bottom plate 14, the heating film 23 can perform a function of heating the battery 21, when the external temperature is too low, the heating film 23 can heat the battery 21 to a suitable temperature to improve the working efficiency of the battery 21, and the heating film 23 between the battery 21 and the top plate 13 and the battery 21 and the bottom plate 14 can be independently temperature-adjusted, so that the temperature uniformity between the batteries 21 is better.

The electric equipment according to the embodiment of the application is provided with the battery pack 20 of the embodiment, and because the electric equipment of the embodiment of the application is provided with the battery pack 20 of the embodiment of the application, the battery pack 20 of the electric equipment has high overall strength, the battery pack 20 of the electric equipment reduces welding process and structural member use, the overall structure of the battery pack 20 is simplified, and the assembly efficiency is improved, wherein the electric equipment can be a new energy automobile.

In the description of the present application, 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", "clockwise", "counterclockwise", "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 application and simplifying 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 application.

In the description of the application, a "first feature" or "second feature" may include one or more of such features.

In the description of the present application, "plurality" means two or more.

In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack case assembly, comprising:

The battery cell accommodating device comprises an outer frame (11), wherein a battery cell accommodating cavity is formed in the outer frame (11);

The support plate (12), the said support plate (12) is connected with said outer frame (11) and the said support plate (12) accommodates in the said electric core and holds the cavity and separates the said electric core to hold the cavity into a plurality of sub-electric core, two adjacent said sub-electric core hold the cavity and locate at the two sides of the said support plate (12) in the thickness direction separately; wherein the method comprises the steps of

The support plate (12) and the outer frame (11) are constructed as an integral piece.

2. The battery pack case assembly according to claim 1, wherein a cooling flow path (121) adapted to circulate a cooling medium is provided in the support plate (12), and heat exchanging surfaces corresponding to the adjacent two sub-cell accommodation chambers one by one are formed on both sides of the support plate (12) in the thickness direction.

3. The battery pack case assembly according to claim 1, wherein the outer frame (11) is disposed around and formed with a first open end (111) and a second open end (112); the battery pack case assembly further includes:

A top plate (13), wherein the top plate (13) is arranged at the first open end (111) and is connected with the outer frame (11) to close one end of the battery cell accommodating cavity;

The bottom plate (14) is arranged at the second open end (112) and is connected with the outer frame (11) so as to seal the other end of the battery cell accommodating cavity.

4. A battery pack case assembly according to claim 3, wherein a cooling flow path is formed in the top plate (13) and/or the bottom plate (14).

5. The battery pack case assembly according to claim 2, wherein the outer frame (11) is provided with a water inlet port (113) and a water outlet port (114) which are communicated with the cooling flow path (121), and the water inlet port (113) and the water outlet port (114) are respectively arranged on the same side wall of the outer frame (11) or on adjacent side walls of the outer frame (11) or on side walls of the outer frame (11) which are far away from each other.

6. The battery pack case assembly according to claim 5, wherein at least part of the edge of the support plate (12) is formed with a stopper plate (126) extending in the thickness direction, at least part of the stopper plate (126) being disposed at a distance from the inner wall of the outer frame (11) to define a distribution chamber (122) adapted to receive the distribution box (22).

7. The battery pack case assembly according to claim 6, wherein a first wall (116) is provided on the outer frame (11), and the water inlet port (113) and the water outlet port (114) are provided on the first wall (116);

The support plate (12) comprises:

The first plate (123), the first plate (123) is connected with the inner wall of the outer frame (11), one side of the first plate (123) on which the limiting plate (126) is formed is a first side, the first side of the first plate (123) and the first wall (116) are arranged at intervals, a first cooling flow path (1231) is formed in the first plate (123), and the first plate (123) is suitable for dividing the battery cell accommodating cavity into a plurality of sub battery cell accommodating cavities;

A second plate (124), wherein one side of the second plate (124) in the first direction is connected with the inner wall of the outer frame (11), two ends of the second plate (124) in the second direction are respectively connected with the first wall (116) and the first side of the first plate (123), a second cooling flow path (1241) is formed in the second plate (124), and the second cooling flow path (1241) is suitable for connecting the first cooling flow path (1231) with the water inlet interface (113);

A third plate (125), wherein one side of the third plate (125) in the first direction is connected with the inner wall of the outer frame (11), two ends of the third plate (125) in the second direction are respectively connected with the first wall (116) and the first side of the first plate (123), a third cooling flow path (1251) is formed in the third plate (125), and the third cooling flow path (1251) is suitable for connecting the first cooling flow path (1231) with the water outlet interface (114); wherein the method comprises the steps of

The second plate (124) and the third plate (125) are arranged at intervals in a first direction, and the first side of the first plate (123) and two sides of the second plate (124) and the third plate (125) facing each other define the power distribution cavity (122).

8. The battery pack case assembly according to claim 6, wherein a first wall (116) is provided on the outer frame (11), and the water inlet port (113) and the water outlet port (114) are provided on the first wall (116);

The support plate (12) comprises:

A second plate (124 a), wherein one side of the second plate (124 a) in the first direction is connected with the inner wall of the outer frame (11), two ends of the second plate (124 a) in the second direction are respectively connected with the first wall (116) and the first side of the first plate (123), a second cooling flow path is formed in the second plate (124 a), and the second cooling flow path is suitable for connecting the first cooling flow path (1231) with the water inlet interface (113) and the water outlet interface (114); wherein the method comprises the steps of

A first side of the first plate (123) and the other side of the second plate (124 a) in a first direction define the power distribution cavity (122).

9. The battery pack case assembly according to claim 6, wherein the limiting plate (126) is formed with an avoidance gap (1261) that avoids the cooling flow path (121).

10. The battery pack case assembly according to claim 6, wherein the stopper plate (126) is provided with a first reinforcing rib (1262) extending in a thickness direction.

11. The battery pack case assembly according to claim 1, wherein the outer peripheral wall of the outer frame (11) is provided with tray lugs (115) fixedly connected to a body of the vehicle, the tray lugs (115) being configured in a plurality of spaced apart in the second direction.

12. A battery pack, comprising:

A battery pack case assembly (10) configured as set forth in any one of claims 1-11;

And the batteries (21) are configured to be a plurality of batteries and are respectively accommodated in the sub-battery cell accommodating cavities.

13. The battery pack according to claim 12, wherein the battery pack case assembly has a top plate (13) and a bottom plate (14); the battery pack further includes:

And a heating film (23), wherein the heating film (23) is arranged between the battery (21) and the top plate (13) and/or between the battery (21) and the bottom plate (14).

14. A powered device comprising a battery pack according to any one of claims 12-13.