Shell module and energy storage equipment

Abstract

The utility model provides a shell module and energy storage equipment, the shell module is applied to the energy storage equipment, the energy storage equipment comprises a battery cell, a first circuit board assembly and a second circuit board assembly, the shell module comprises a middle frame, a first end shell and a second end shell, the middle frame comprises a mounting shell and a separator, the separator is arranged in the mounting shell and connected to the mounting shell, and the first end shell and the second end shell are arranged in the mounting shell. The mounting shell is provided with a lower-end opening and an upper-end opening; the first end shell is arranged at the lower end opening in a sealed mode, the partition piece is provided with a first connecting structure and fixedly connected with the first end shell through the first connecting structure, and a sealed space is defined by the partition piece, the mounting shell and the first end shell; the second end shell is arranged at the upper end opening, the separator is provided with a second connecting structure, the separator is fixedly connected with the second end shell through the second connecting structure, the separator, the mounting shell and the second end shell form a mounting space, and a shell opening is formed in the shell surface of the second end shell. According to the arrangement, the space utilization rate of the shell module of the energy storage equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a housing module and an energy storage device. Background Technology

[0002] Energy storage devices include housing modules and battery cells. The battery cells are housed within the housing modules. The housing modules generally consist of an outer shell and a protective shell. The protective shell is located inside the outer shell, and the battery cells are located inside the protective shell to protect the battery cells. However, the double-layered housing design of the protective shell and the outer shell results in low space utilization of the housing modules, making the overall volume of the housing modules large. Utility Model Content

[0003] In view of this, this application provides a housing module and an energy storage device, which can improve the space utilization rate of the housing module of the energy storage device.

[0004] On one hand, one embodiment of this application provides a housing module applied to an energy storage device. The energy storage device includes a battery cell, a first circuit board assembly, and a second circuit board assembly. Both the first and second circuit board assemblies include a circuit board and a functional module electrically connected to the circuit board. The housing module includes a middle frame, a first end shell, and a second end shell. The middle frame includes a mounting shell and a separator. The separator is disposed inside the mounting shell and connected to the mounting shell. The mounting shell has a lower opening and an upper opening. The first end shell is sealed at the lower opening. The separator has a first connecting structure and is fixedly connected to the first end shell through the first connecting structure. The separator, the mounting shell, and the first end shell form a sealed space for accommodating the battery cell. The second end shell is disposed at the upper opening. The separator has a second connecting structure and is fixedly connected to the second end shell through the second connecting structure. The separator, the mounting shell, and the second end shell are configured to form an installation space for accommodating the first and second circuit board assemblies. The outer surface of the second end shell has an outer opening for exposing the functional module of the second circuit board assembly.

[0005] By placing a separator inside and connecting it to the mounting housing, the mounting housing is divided into two areas. These two areas, together with the first and second end shells, form a sealed space and an installation space, respectively. Placing the battery cell within the sealed space reduces contact between moisture and the battery cell, thereby extending its lifespan. It is evident that the separator in this application eliminates the need for an additional "protective shell" inside the mounting housing, thus reducing redundant space within the housing module and improving its space utilization. Furthermore, the separator features a first connection structure connected to the first end shell and a second connection structure connected to the second end shell, ensuring a tight structural connection between the first and second end shells and the mounting housing. The second end shell also has an outer shell opening, facilitating the assembly of the second circuit board assembly from the outside of the second end shell.

[0006] In at least one embodiment, the second end shell has a first shell wall located on the side of the second end shell away from the middle frame, and a plurality of shell openings are provided, all of which are located on the first shell wall, and each shell opening is configured to expose at least one functional module of the second circuit board assembly.

[0007] By placing multiple housing openings on the same plane, i.e., on the first housing wall, the assembly angle and position of the energy storage device can be adjusted less frequently when assembling multiple second functional modules, saving assembly time. Furthermore, with the housing openings on the same plane, assemblers can more quickly locate and position each second functional module, facilitating the assembly of multiple second functional modules.

[0008] In at least one embodiment, the separator includes a partition and a receiving frame, the receiving frame being configured to receive a battery cell, the partition being connected to the mounting housing and the receiving frame respectively to separate the sealed space and the mounting space, and both the first connecting structure and the second connecting structure being disposed on the partition.

[0009] By positioning the battery cell using the housing frame, the installation efficiency of the battery cell on the separator can be improved. Furthermore, the housing frame's limitation on the battery cell can increase the structural stability between the battery cell and the separator, reducing the possibility of the battery cell being bumped or scratched due to shaking, thereby improving the battery cell's reliability and service life. In addition, by setting both the first and second connecting structures on the separator, on the one hand, the setting of the first and second connecting structures can improve the structural strength of the separator to a certain extent. On the other hand, it can prevent the connection structure between the separator and the first and second end shells from interfering with the battery cell located in the housing frame, resulting in a reasonable layout of the housing module.

[0010] In at least one embodiment, the receiving frame has a receiving cavity, and an abutment boss is provided on the side of the receiving cavity away from the first end shell, the abutment boss being configured to abut against the end of the battery cell.

[0011] By setting an abutting boss in the housing frame, the end of the battery cell is spaced apart from the bottom of the housing cavity, so that when gas is ejected from the explosion-proof valve at the end of the battery cell, the gas can flow through the gap between the battery cell and the bottom of the housing cavity, as well as the gap between the battery cell and the inner wall of the housing frame, to the sealed space for depressurization.

[0012] In at least one embodiment, the separator further includes reinforcing ribs disposed on two surfaces of the separator in the thickness direction, and the reinforcing ribs located on the side of the separator facing the second end shell are configured to support the first circuit board assembly.

[0013] By adding reinforcing ribs, the overall structural strength of the partition is improved, thereby enhancing the overall structural strength of the housing module and mitigating the problem of easy deformation of the partition. Furthermore, the reinforcing ribs support the first circuit board assembly, which can improve the support strength of the partition for the first circuit board assembly.

[0014] In at least one embodiment, a portion of the receiving frame is located on the side of the partition facing the sealed space, and another portion of the receiving frame is located on the side of the partition facing the installation space.

[0015] The above configuration ensures that the structure on both sides of the partition is evenly distributed in the thickness direction, thereby making the overall structure between the partition and the mounting shell stable and reliable.

[0016] In at least one embodiment, the housing module further includes an integrated housing configured to house multiple battery cells; a first end housing is provided with a support post connected to the integrated housing and used to support the integrated housing and the multiple battery cells.

[0017] By setting a support column in the first end shell to connect with the integrated shell, the problem of easy shaking and displacement between the integrated shell and the first end shell is improved.

[0018] In at least one embodiment, the integrated shell includes a first fixing post, and the partition is provided with a second fixing post, the first fixing post and the second fixing post being mated and fastened together.

[0019] The tight connection between the first and second fixing posts ensures that the positions of the integrated shell and the partition are relatively fixed, thereby improving the problem of the integrated shell easily wobbling relative to the partition.

[0020] In at least one embodiment, the partition is provided with a connecting portion that is mated and fastened to the support column to connect the partition, the integrated shell, and the first end shell.

[0021] The above configuration can improve the connection strength between the separator, the integrated shell and the first end shell, making the connection between the separator, the integrated shell and the first end shell tight.

[0022] In at least one embodiment, the first connection structure includes a plurality of first connecting posts, and the first end shell is provided with a plurality of second connecting posts. Each first connecting post is mated with and fastened to a second connecting post, and the plurality of second connecting posts are spaced apart along the circumference of the first end shell.

[0023] By providing a second connecting post on the first end shell, when assembling the first end shell and the partition, the second connecting post of the first end shell can extend into the mounting shell and dock with the first connecting post. After the first end shell is connected to the partition in the mounting shell, the first end shell tends to face the partition, that is, the mounting shell and the first end shell tend to move closer to each other, thereby making the first end shell and the mounting shell tightly connected and the structure compact. Furthermore, multiple second connecting posts are arranged at intervals along the circumference of the first end shell to form a connection surface, thereby improving the connection stability between the partition and the first end shell.

[0024] In at least one embodiment, the second connection structure includes a plurality of third connecting posts, and the second end shell is provided with a plurality of fourth connecting posts. Each third connecting post and a fourth connecting post are mated and fastened together, and the plurality of fourth connecting posts are spaced apart along the circumference of the second end shell.

[0025] By providing a fourth connecting post on the second end shell, and connecting the second end shell to the third connecting post on the partition, the second end shell tends to move towards the partition, i.e., the second end shell and the mounting shell tend to move closer to each other, thereby making the connection between the second end shell and the mounting shell tight and the structure compact; and, multiple fourth connecting posts are arranged circumferentially on the second end shell to form a connecting surface, thereby improving the connection stability between the partition and the second end shell.

[0026] In at least one embodiment, at least one mounting post is provided on the side surface of the separator away from the first end shell, the mounting post being configured to mount the first circuit board assembly.

[0027] By setting mounting posts on the separator, the first circuit board assembly can be directly mounted on the separator, thereby improving the compactness between the first circuit board assembly and the separator.

[0028] On the other hand, embodiments of this application provide an energy storage device, including a battery cell, a first circuit board assembly, a second circuit board assembly, and the aforementioned housing module; the battery cell is disposed in the sealed space of the housing module; the first circuit board assembly is disposed in the mounting space of the housing module; and the second circuit board assembly is disposed in the mounting space of the housing module.

[0029] By applying the aforementioned housing module to energy storage devices, the step of installing a "protective shell" is saved because there is no need to set up a separate "protective shell" inside the mounting shell in the housing module. This reduces the assembly steps of the energy storage device and improves the assembly efficiency of the energy storage device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation on the scope.

[0031] Figure 1 A schematic diagram of the external structure of an energy storage device provided in an embodiment of this application from a first-view perspective;

[0032] Figure 2 A schematic diagram of the external structure of an energy storage device provided in an embodiment of this application from a second perspective;

[0033] Figure 3 This is a plan view of an energy storage device provided in an embodiment of this application;

[0034] Figure 4 for Figure 2 The first exploded view of the energy storage device in the image;

[0035] Figure 5 for Figure 2 The second exploded view of the energy storage device in the image;

[0036] Figure 6 A cross-sectional view of an energy storage device provided in an embodiment of this application;

[0037] Figure 7 A cross-sectional view of the midframe of a housing module provided in one embodiment of this application;

[0038] Figure 8 A structural schematic diagram of the middle frame of a housing module provided in an embodiment of this application from a first-view perspective;

[0039] Figure 9 A second-view structural schematic diagram of the mid-frame of a housing module provided in an embodiment of this application;

[0040] Figure 10 A third-view structural schematic diagram of the mid-frame of a housing module provided in an embodiment of this application;

[0041] Figure 11 for Figure 2 An enlarged schematic diagram of the first end shell of the energy storage device.

[0042] Explanation of main component symbols

[0043] 100. Housing module; 200. Energy storage device; 201. Battery cell; 202. First circuit board assembly; 2020. First circuit board; 2021. First functional module; 2022. Mounting slot; 203. Second circuit board assembly; 2030. Second circuit board; 2031. Second functional module; 204. Third circuit board;

[0044] 10. Middle frame; 11. Mounting shell; 111. Lower opening; 112. Upper opening; 12. Divider; 120. Sealed space; 121. Mounting space; 122. Receiving frame; 1220. Receiving cavity; 1221. Abutting boss; 1222. Insertion opening; 123. Partition; 124. Reinforcing rib; 13. First connecting structure; 131. First connecting post; 14. Second connecting structure; 141. Third connecting post; 150. Mounting post; 151. First mounting post; 152. Second mounting post; 160. Second fixing post; 170. Connecting part;

[0045] 20. First end shell; 210. Second connecting post; 211. Support post; 212. Sealing groove;

[0046] 30. Second end shell; 31. First shell wall; 310. Fourth connecting post; 311. Outer shell opening;

[0047] 40. Integrated housing; 411. First fixing post; 410. Positioning groove;

[0048] 50. Sealing ring. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] Energy storage devices are used to store energy and release it when needed. An energy storage device includes a housing module, battery cells, and a circuit board assembly, with the circuit board assembly and battery cells housed within the housing module.

[0052] In related technologies, a housing module generally includes an outer shell and a protective shell. The protective shell is set inside the outer shell and covers the battery cell to reduce the entry of moisture, thereby protecting the battery cell and extending its service life. However, the double-layer housing design of the protective shell and the outer shell results in a large redundant space between the outer wall of the protective shell and the inner wall of the outer shell, which leads to low space utilization of the housing module and a large overall volume of the housing module.

[0053] An embodiment of this application provides a housing module, including a middle frame, a first end shell, and a second end shell. The middle frame includes a mounting shell and a partition. The partition is disposed inside the mounting shell and connected to the mounting shell. The mounting shell has a lower opening and an upper opening. The first end shell is sealed at the lower opening of the mounting shell. The partition has a first connecting structure and is fixedly connected to the first end shell through the first connecting structure. The partition, the mounting shell, and the first end shell form a sealed space for accommodating a power supply core. The second end shell is disposed at the upper opening. The partition has a second connecting structure and is fixedly connected to the second end shell through the second connecting structure. The partition, the mounting shell, and the second end shell form an installation space for accommodating a first circuit board assembly and a second circuit board assembly. The outer surface of the second end shell has an outer opening for exposing the functional modules of the second circuit board assembly.

[0054] The middle frame of this application includes a mounting shell and a separator. The separator is disposed inside and connected to the mounting shell to divide the mounting shell into two areas. The two areas, together with the first end shell and the second end shell, respectively form a sealed space and an installation space. Placing the battery cell in the sealed space can reduce the contact between moisture and the battery cell, thereby improving the battery cell's service life. It can be seen that the above-mentioned separator of this application eliminates the need to set up a separate "protective shell" inside the mounting shell, thereby reducing redundant space in the housing module, improving the space utilization of the housing module, and saving the step of installing the "protective shell", thus reducing assembly steps and improving assembly efficiency. Furthermore, this application has a first connection structure connected to the first end shell and a second connection structure connected to the second end shell in the separator, so that the structural connection between the first end shell and the second end shell and the mounting shell is tight. In addition, the second end shell also has an outer shell opening to facilitate the assembly of the functional module of the second circuit board assembly from the outside of the second end shell.

[0055] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0056] Please see Figure 1 , Figure 2 and Figure 3 One embodiment of this application provides a housing module 100 and an energy storage device 200. The energy storage device 200 has the functions of storing and discharging electricity for use as backup power for homes, production units, outdoor work, and outdoor recreation. The energy storage device 200 can be a small portable power source, a household energy storage power source, an industrial or commercial energy storage power source, or a containerized energy storage power source.

[0057] Please see Figure 4 , Figure 5 and Figure 6In some embodiments, the energy storage device 200 includes a battery cell 201, a first circuit board assembly 202, and a second circuit board assembly 203. The battery cell 201 is used to store electrical energy. The first circuit board assembly 202 and the second circuit board assembly 203 each include a circuit board electrically connected to the battery cell 201 and a functional module electrically connected to the circuit board.

[0058] Please see Figure 2 and Figure 5 In some embodiments, the first circuit board assembly 202 includes a first circuit board 2020 and a first functional module 2021, the first circuit board 2020 and the battery cell 201 are electrically connected, and the first functional module 2021 is electrically connected to the first circuit board 2020.

[0059] In some embodiments, the first circuit board 2020 may be a PSDR board (Power Supply Driver), and multiple first functional modules 2021 are provided, including inverters, inductors, and power devices.

[0060] Please see Figure 2 and Figure 6 In some embodiments, the second circuit board assembly 203 includes a second circuit board 2030 and a second functional module 2031, the second functional module 2031 being electrically connected to the second circuit board 2030.

[0061] In some embodiments, the second circuit board 2030 may be a circuit board for controlling the socket and interface of the energy storage device 200. Multiple second functional modules 2031 are provided, and the multiple second functional modules 2031 include a display screen, buttons, USB interface, Type-C interface and socket, etc.

[0062] Please see Figure 5 , Figure 6 and Figure 7In some embodiments, the housing module 100 includes a middle frame 10, a first end shell 20, and a second end shell 30. The middle frame 10 includes a mounting shell 11 and a partition 12. The partition 12 is disposed within and connected to the mounting shell 11 to divide the mounting shell 11 into two areas. The mounting shell 11 has a lower opening 111 and an upper opening 112. The first end shell 20 is sealed in the lower opening 111 of the mounting shell 11. The partition 12 is provided with a first connecting structure 13. The partition 12 is fixedly connected to the first end shell 20 through the first connecting structure 13. The partition 12, the mounting shell 11, and the second end shell 30 are connected in a series. One end shell 20 forms a sealed space 120 for accommodating the power supply core 201; the second end shell 30 is located at the upper opening 112, and the separator 12 is provided with a second connecting structure 14. The separator 12 is fixedly connected to the second end shell 30 through the second connecting structure 14. The separator 12, the mounting shell 11, and the second end shell 30 form an installation space 121 for accommodating the first circuit board assembly 202 and the second circuit board assembly 203. The outer shell surface of the second end shell 30 is provided with an outer shell opening 311 for exposing the second functional module 2031, so as to facilitate the assembly of the second functional module 2031 from the outside of the second end shell 30.

[0063] Understandably, after the separator 12 divides the mounting shell 11 into two areas, the separator 12 and the first end shell 20 are fixedly connected by the first connecting structure 13, and the first end shell 20 and the mounting shell 11 are sealed together, so that one of the two areas and the first end shell 20 form a sealed space 120. Placing the battery cell 201 in the sealed space 120 can reduce the contact between water vapor and the battery cell 201, thereby improving the service life of the battery cell 201. In addition, it is not necessary to set up a "protective shell" in the mounting shell 11, thereby reducing the redundant space in the shell module 100, improving the space utilization of the shell module 100, saving the step of installing the "protective shell", and thus improving the assembly efficiency. In this application, the separator 12 is provided with a first connecting structure 13 connected to the first end shell 20 and a second connecting structure 14 connected to the second end shell 30, so that the structural connection between the first end shell 20 and the second end shell 30 and the mounting shell 11 is tight.

[0064] Please see Figure 2 and Figure 6 In some embodiments, the second end shell 30 has a first shell wall 31 located on the side of the second end shell 30 away from the middle frame 10, and a plurality of shell openings 311 are provided, all of which are located on the first shell wall 31. Each shell opening 311 is configured to expose at least one second functional module 2031.

[0065] By placing multiple housing openings 311 on the same plane, i.e., placing multiple housing openings 311 on the first housing wall 31, the assembly angle and position of the energy storage device 200 can be adjusted less frequently when assembling multiple second functional modules 2031, saving assembly time. Furthermore, since the housing openings 311 are on the same plane, the assembly personnel can find and position each second functional module 2031 more quickly, which facilitates the assembly of multiple second functional modules 2031.

[0066] For example, the second circuit board 2030 is mounted on the first housing wall 31 and located within the mounting space 121 so that the second functional module 2031 is exposed on the outside of the first housing wall 31.

[0067] Please see Figure 6 and Figure 7 In some embodiments, the separator 12 includes a receiving frame 122 and a partition 123. The receiving frame 122 is configured to receive the battery cell 201. By positioning the battery cell 201 with the receiving frame 122, the installation efficiency of the battery cell 201 on the separator 12 can be improved. Furthermore, the limiting effect of the receiving frame 122 on the battery cell 201 can increase the structural stability between the battery cell 201 and the separator 12, reducing the possibility of the battery cell 201 being bumped or scratched due to shaking, thereby improving the reliability and service life of the battery cell 201. The partition 123 is connected to the mounting shell 11 and the receiving frame respectively. 122, to separate the sealed space 120 and the installation space 121, the first connecting structure 13 and the second connecting structure 14 are both set on the partition 123. On the one hand, the setting of the first connecting structure 13 and the second connecting structure 14 can improve the structural strength of the partition 123 to a certain extent. On the other hand, the fact that the first connecting structure 13 and the second connecting structure 14 are both set on the partition 123 can make it less likely for the connection structure between the separator 12 and the first end shell 20 and the second end shell 30 to interfere with the battery cell 201 located in the accommodating frame 122, so that the layout of the housing module 100 is reasonable.

[0068] Please see Figure 6 , Figure 8 and Figure 9 In some embodiments, the receiving frame 122 has a receiving cavity 1220, and the receiving cavity 1220 is provided with an abutment boss 1221 on the side away from the first end shell 20. The abutment boss 1221 is configured to abut against the end of the battery cell 201 so that the end of the battery cell 201 is spaced apart from the bottom of the receiving cavity 1220.

[0069] Understandably, explosion-proof valves are generally provided at both ends of the battery cell 201. By providing abutment bosses 1221 in the accommodating frame 122, the end of the battery cell 201 is spaced apart from the bottom of the accommodating cavity 1220. When gas is ejected from the explosion-proof valve at the end of the battery cell 201, the gas can flow through the gap between the battery cell 201 and the bottom of the accommodating cavity 1220, as well as the gap between the battery cell 201 and the inner wall of the accommodating frame 122, to the sealed space 120, so that the battery cell 201 can be depressurized.

[0070] Please see Figure 6 , Figure 8 and Figure 9 In some embodiments, the accommodating frame 122 includes a plurality of accommodating cavities 1220, each accommodating cavity 1220 for accommodating a battery cell 201 to separate the plurality of battery cells 201. Each accommodating cavity 1220 is provided with an abutting boss 1221. Each battery cell 201 can be ejected with gas through a corresponding explosion-proof valve to improve the reliability of the use of the plurality of battery cells 201.

[0071] Please see Figure 6 , Figure 8 and Figure 9 For example, the receiving frame 122 has an insertion opening 1222, which is disposed opposite to the abutment boss 1221. The insertion opening 1222 communicates with the receiving cavity 1220 and is disposed towards the first end shell 20 so that the battery cell 201 is inserted into the receiving cavity 1220 through the insertion opening 1222.

[0072] Please see Figure 6 and Figure 7 In some embodiments, a portion of the accommodating frame 122 is located on the side of the partition 123 facing the sealed space 120, and another portion of the accommodating frame 122 is located on the side of the partition 123 facing the mounting space 121, so that the structure on both sides of the partition 123 in the thickness direction is evenly distributed, thereby making the overall structure between the separator 12 and the mounting shell 11 stable and reliable.

[0073] For example, the partition 123 is positioned at the middle of the height direction of the receiving frame 122 to maximize the uniform distribution of the structure on both sides of the partition 123 in the thickness direction, thereby improving the stability and reliability of the overall structure between the partition 12 and the mounting shell 11.

[0074] In other embodiments, the receiving frame 122 may be disposed on the side of the partition 123 near the first end shell 20, so that the receiving frame 122 is completely located within the sealed space 120. It is understood that if a portion of the receiving frame 122 is located on the side of the partition 123 facing the mounting space 121, the edge of the receiving frame 122 on the mounting space 121 side is prone to scratching the first circuit board assembly 202 and the assembly operator. By completely disposing the receiving frame 122 within the sealed space 120, the side of the partition 123 away from the first end shell 20 can be configured as a smooth, continuous plane. During the assembly of the first circuit board assembly 202, neither the first circuit board assembly 202 nor the assembly operator is easily scratched, thereby improving the reliability and safety of the first circuit board assembly 202 mounted on the partition 12. Please refer to... Figure 8 , Figure 9 and Figure 10 In some embodiments, the partition 12 further includes a reinforcing rib 124, which is disposed on two surfaces of the partition 123 in the thickness direction. The reinforcing rib 124 located on the side of the partition 123 facing the second end shell 30 is configured to support the first circuit board assembly 202.

[0075] By setting the reinforcing rib 124, the overall structural strength of the partition 12 is improved, thereby improving the overall structural strength of the housing module 100 and mitigating the problem of easy deformation of the partition 123. Furthermore, the reinforcing rib 124 supports the first circuit board assembly 202. On the one hand, it can improve the support strength of the partition 12 for the first circuit board assembly 202. On the other hand, when part of the receiving frame 122 is located on the side of the partition 123 facing the installation space 121, the support of the reinforcing rib 124 can make the first circuit board assembly 202 and the end of the receiving frame 122 facing the installation space 121 spaced apart, thereby improving the problem that the edge of the receiving frame 122 is easy to scratch the first circuit board assembly 202 and the assembly operator.

[0076] In some embodiments, a plurality of reinforcing ribs 124 are provided, and at least some of the reinforcing ribs 124 are connected to the inner wall of the mounting shell 11 to increase the structural strength of the connection between the partition 12 and the mounting shell 11.

[0077] In some embodiments, at least a portion of the reinforcing ribs 124 are connected to the outer wall of the accommodating frame 122. Since the reinforcing ribs 124 are provided on the partition 123, the connection between the reinforcing ribs 124 and the outer wall of the accommodating frame 122 can increase the structural strength of the connection between the accommodating frame 122 and the partition 123.

[0078] In some embodiments, the reinforcing rib 124, partition 123, accommodating frame 122 and mounting shell 11 are integral structures, so that the reinforcing rib 124, partition 123, accommodating frame 122 and mounting shell 11 form a single part, thereby reducing the number of parts in the housing module 100 and simplifying the assembly of the energy storage device 200.

[0079] In some embodiments, the reinforcing rib 124, partition 123, receiving frame 122, and mounting shell 11 can be formed into an integral structure by injection molding.

[0080] Please see Figure 5 , Figure 8 and Figure 11 In some embodiments, the first connecting structure 13 includes a plurality of first connecting posts 131, and the first end shell 20 is provided with a plurality of second connecting posts 210. Each first connecting post 131 is mated with and fastened to a second connecting post 210, and the plurality of second connecting posts 210 are spaced apart along the circumference of the first end shell 20.

[0081] By providing a second connecting post 210 on the first end shell 20, when assembling the first end shell 20 and the separator 12, the second connecting post 210 of the first end shell 20 can extend into the mounting shell 11 and dock with the first connecting post 131. After the first end shell 20 is connected to the separator 12 in the mounting shell 11, the first end shell 20 tends to move towards the separator 12, that is, the mounting shell 11 and the first end shell 20 tend to move closer to each other, thereby making the first end shell 20 and the mounting shell 11 tightly connected and compact in structure. Furthermore, multiple second connecting posts 210 are arranged at intervals along the circumference of the first end shell 20 to form a connecting surface, thereby improving the connection stability between the separator 12 and the first end shell 20.

[0082] For example, the second connecting post 210 and the first connecting post 131 can be fastened together by a first fastener (not shown); for example, the first fastener can be a bolt or a screw, so that the second connecting post 210 and the first connecting post 131 can be detachably connected by the first fastener. Since the battery cell 201 is located in the sealed space 120 formed by the separator 12, the mounting shell 11 and the first end shell 20, the detachable connection between the separator 12 and the first end shell 20 facilitates the maintenance or replacement of the battery cell 201.

[0083] Please see Figure 8 and Figure 9 In some embodiments, a plurality of first connecting posts 131 are provided on the partition 123, and a reinforcing rib 124 is provided between each first connecting post 131 and the inner wall of the mounting shell 11 to enhance the structural stability of each first connecting post 131.

[0084] Please see Figure 4 , Figure 5 and Figure 10In some embodiments, the second connection structure 14 includes a plurality of third connection posts 141, and the second end shell 30 is provided with a plurality of fourth connection posts 310. Each third connection post 141 and a fourth connection post 310 are mated and fastened together, and the plurality of fourth connection posts 310 are spaced apart along the circumference of the second end shell 30.

[0085] By providing a fourth connecting post 310 on the second end shell 30, after the second end shell 30 is connected to the third connecting post 141 on the partition 12, the second end shell 30 tends to move towards the partition 12, that is, the second end shell 30 and the mounting shell 11 tend to move closer to each other, thereby making the connection between the second end shell 30 and the mounting shell 11 tight and the structure compact; and, the multiple fourth connecting posts 310 are arranged at intervals along the circumference of the second end shell 30 to form a connection surface, thereby improving the connection stability between the partition 12 and the second end shell 30.

[0086] For example, the third connecting post 141 and the fourth connecting post 310 can be fastened together by a second fastener (not shown); for example, the second fastener can be a bolt or screw to achieve a detachable connection between the second end shell 30 and the separator 12, so as to facilitate the inspection and replacement of the first circuit board assembly 202 and the second circuit board assembly 203.

[0087] Please see Figure 10 In some embodiments, a plurality of third connecting posts 141 are provided on the partition 123, and a reinforcing rib 124 is provided between each third connecting post 141 and the inner wall of the mounting shell 11 to enhance the structural stability of each third connecting post 141.

[0088] Please see Figure 6 and Figure 10 In some embodiments, at least one mounting post 150 is provided on the side surface of the partition 12 away from the first end housing 20. The mounting post 150 is configured to mount the first circuit board assembly 202. By providing the mounting post 150 on the partition 12, the first circuit board assembly 202 is directly mounted on the partition 12, thereby improving the compactness between the first circuit board assembly 202 and the partition 12.

[0089] Please see Figure 2 , Figure 6 and Figure 10 In some embodiments, multiple mounting posts 150 are provided, and the multiple mounting posts 150 are divided into first mounting posts 151 and second mounting posts 152. The first mounting post 151 is provided on the partition 123, and the edge of the first circuit board 2020 is provided with a mounting groove 2022. The first mounting post 151 is connected to the mounting groove 2022 and fastened. The second mounting post 152 is provided on the side of the receiving frame 122 near the second end shell 30, and the first circuit board 2020 is mounted on the second mounting post 152.

[0090] By dividing the mounting post 150 into a first mounting post 151 and a second mounting post 152, the edge and inner surface of the first circuit board 2020 are connected to the separator 12 respectively, thereby improving the connection stability between the separator 12 and the first circuit board 2020.

[0091] In some embodiments, multiple first mounting posts 151 are provided, spaced apart circumferentially along the partition 123. Multiple mounting slots 2022 are provided, spaced apart circumferentially along the first circuit board 2020. Each first mounting post 151 is disposed within a mounting slot 2022 and securely connected. The multiple first mounting posts 151 form a mounting surface to improve the connection stability between the first circuit board 2020 and the partition 12.

[0092] In some embodiments, multiple second mounting posts 152 are provided, and the multiple second mounting posts 152 are distributed according to the weight of the first functional module 2021. For example, if the first functional module 2021 at a certain position of the first circuit board 2020 is heavier, the multiple second mounting posts 152 at the corresponding position of the receiving frame 122 are more densely distributed so as to support the heavier first functional module 2021 through the multiple second mounting posts 152, thereby improving the problem that the bottom of the receiving frame 122 is prone to deformation. For the lighter first functional module 2021, only one second mounting post 152 can be provided at the corresponding position of the receiving frame 122.

[0093] Please see Figure 5 and Figure 6 In some embodiments, the housing module 100 further includes an integrated housing 40 configured to mount a plurality of battery cells 201.

[0094] By setting up an integrated shell 40, and combining the integrated shell 40 with the first end shell 20, the end of the battery cell 201 can be double-protected.

[0095] Please see Figure 5 , Figure 6 and Figure 11 In some embodiments, the first end shell 20 is provided with a support post 211, which is connected to the integrated shell 40 and is used to support the integrated shell 40 and multiple battery cells 201.

[0096] By providing a support column 211 to the first end shell 20 to connect with the integrated shell 40, the problem of easy shaking and displacement between the integrated shell 40 and the first end shell 20 is improved.

[0097] In some embodiments, the first end shell 20 is a rectangular structure, and multiple support columns 211 are provided. The multiple support columns 211 are spaced apart along the length direction of the rectangular structure, and the multiple support columns 211 are all located at the middle position in the width direction of the rectangular structure, so that the multiple support columns 211 form a support line, thereby improving the support strength of the integrated shell 40 and the multiple battery cells 201 through the multiple support columns 211.

[0098] Please see Figure 5 , Figure 6 and Figure 8 In some embodiments, the integrated shell 40 includes a first fixing post 411, and the partition 12 is provided with a second fixing post 160. The first fixing post 411 and the second fixing post 160 are mated and fastened together.

[0099] The tight connection between the first fixing post 411 and the second fixing post 160 makes the positions of the integrated shell 40 and the partition 12 relatively fixed, thereby improving the problem that the integrated shell 40 is prone to shaking relative to the partition 12.

[0100] For example, the first fixing post 411 and the second fixing post 160 are fastened together by a fourth fastener, which may be a bolt or a screw, to enable the integrated housing 40 and the separator 12 to be detachably connected so as to facilitate the inspection and replacement of the cell 201 between the integrated housing 40 and the separator 12.

[0101] Please see Figure 5 , Figure 6 and Figure 8 In some embodiments, multiple first fixing posts 411 and multiple second fixing posts 160 are provided. At least one of the multiple first fixing posts 411 is located in the middle of the integrated shell 40, and the remaining first fixing posts 411 are located at the edge of the integrated shell 40 and spaced apart circumferentially. At least one of the multiple second fixing posts 160 is located in the middle of the receiving frame 122, and the remaining second fixing posts 160 are located on the partition 123 and spaced apart circumferentially. Each first fixing post 411 is connected to one second fixing post 160 and fastened together. By providing multiple first fixing posts 411 and multiple second fixing posts 160, a fixing surface is formed, thereby improving the connection stability between the separator 12 and the integrated shell 40.

[0102] Please see Figure 5 , Figure 10 and Figure 11 In some embodiments, the partition 12 is provided with a connecting portion 170, which is mated and fastened to the support column 211 to connect the partition 12, the integrated shell 40 and the first end shell 20.

[0103] Understandably, the connecting part 170 and the support column 211 are fastened together by a fourth fastener (not shown) to enhance the connection strength between the partition 12, the integrated shell 40 and the first end shell 20, so that the connection between the partition 12, the integrated shell 40 and the first end shell 20 is tight.

[0104] For example, the connecting part 170 can be a connecting hole, which is provided in the receiving frame 122. The fourth fastener includes a screw and a nut. The screw passes through the connecting hole and the integrated shell 40 and is inserted into the support column 211. There are two nuts. The nuts are sleeved on the screw and threadedly connected to the screw. One nut abuts against the side of the receiving frame 122 away from the first end shell 20, and the other nut abuts against the end face of the support column 211. Through the above-mentioned arrangement of the fourth fastener, the receiving frame 122, the integrated shell 40 and the first end shell 20 can be detachably connected, so as to facilitate the disassembly and assembly of the receiving frame 122, the integrated shell 40 and the first end shell 20.

[0105] Understandably, in order to achieve the sealing of the sealed space 120, a sealing element can be provided between the outer peripheral surface of the screw and the inner wall surface of the connecting hole (connecting part 170); a sealing gasket can be provided between a nut and the receiving frame 122 to achieve the sealing.

[0106] For example, the connecting part 170 can also be a columnar structure located on the side of the receiving frame 122 near the first end shell 20. The length of the columnar structure extends toward the first end shell 20 so that the columnar structure can be mated and fastened to the support column 211. The fourth fastener can be a screw or bolt to achieve a detachable connection between the columnar structure and the support column 211. By setting the connecting part 170 as a columnar structure, the relatively long length of the columnar structure makes the distance between the end of the columnar structure near the first end shell 20 and the support column 211 more compact, thereby facilitating the mating and positioning of the columnar structure and the support column 211. Furthermore, the columnar structure is integrated into the receiving frame 122 to increase the structural strength of the separator 12.

[0107] Please see Figure 6 In some embodiments, the integrated housing 40 has a plurality of positioning slots 410, each positioning slot 410 having a battery cell 201, so that the battery cell 201 is positioned easily by setting multiple positioning slots 410, thereby improving the integration efficiency of multiple battery cells 201 in the integrated housing 40 and thus improving the assembly efficiency of the energy storage device 200.

[0108] In some embodiments, the energy storage device 200 includes a third circuit board 204 disposed between the integrated housing 40 and the first end housing 20, and electrically connected to the battery cell 201. The third circuit board 204 is a BMS (Battery Management System) board to monitor and manage the battery cell 201.

[0109] In some embodiments, the integrated housing 40 is provided with a positioning post (not shown). The positioning post is located on the side of the integrated housing 40 near the first end housing 20. After passing through the third circuit board 204, the positioning post is inserted into the support post 211 to position the integrated housing 40, the first end housing 20 and the third circuit board 204.

[0110] Please see Figure 5 and Figure 11 In some embodiments, the housing module 100 includes a sealing ring 50, the first end housing 20 has a sealing groove 212, the sealing ring 50 is disposed in the sealing groove 212 and located between the first end housing 20 and the mounting housing 11, so as to seal the first end housing 20 and the mounting housing 11 and reduce the contact between moisture and the battery cell 201.

[0111] For example, the sealing ring 50 is a rubber or silicone part, which can tightly abut against the first end shell 20 and the mounting shell 11 through the elastic deformation of the rubber / silicone part, thereby improving the sealing effect.

[0112] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A housing module for use in an energy storage device, the energy storage device comprising a battery cell, a first circuit board assembly, and a second circuit board assembly, characterized in that, The housing module includes: The middle frame includes a mounting shell and a partition, the partition being disposed inside the mounting shell and connected to the mounting shell, the mounting shell having a lower opening and an upper opening; The first end shell is sealed at the lower end opening. The separator is provided with a first connecting structure. The separator is fixedly connected to the first end shell through the first connecting structure. The separator, the mounting shell, and the first end shell form a sealed space for accommodating the battery cell. The second end shell is provided at the upper opening. The separator is provided with a second connecting structure. The separator is fixedly connected to the second end shell through the second connecting structure. The separator, the mounting shell and the second end shell are configured to form an installation space for accommodating the first circuit board assembly and the second circuit board assembly. The outer shell surface of the second end shell is provided with an outer shell opening for exposing the functional modules of the second circuit board assembly.

2. The housing module according to claim 1, characterized in that, The second end shell has a first shell wall located on the side of the second end shell away from the middle frame. The shell openings are provided in a plurality of ways, all of which are located on the first shell wall. Each shell opening is configured to expose at least one of the functional modules of the second circuit board assembly.

3. The housing module according to claim 1, characterized in that, The separator includes a partition and a receiving frame. The receiving frame is configured to receive the battery cell. The partition is connected to the mounting shell and the receiving frame respectively to separate the sealed space and the mounting space. The first connecting structure and the second connecting structure are both disposed on the partition.

4. The housing module according to claim 3, characterized in that, The receiving frame has a receiving cavity, and the receiving cavity has an abutment protrusion on the side away from the first end shell. The abutment protrusion is configured to abut against the end of the battery cell.

5. The housing module according to claim 3, characterized in that, The separator also includes reinforcing ribs, which are disposed on two surfaces of the partition in the thickness direction. The reinforcing ribs located on the side of the partition facing the second end shell are configured to support the first circuit board assembly. And / or, A portion of the receiving frame is located on the side of the partition facing the sealed space, and another portion of the receiving frame is located on the side of the partition facing the installation space.

6. The housing module according to any one of claims 1 to 5, characterized in that, The housing module further includes an integrated housing, which is configured to mount a plurality of the battery cells; wherein: The first end shell is provided with a support post, which is connected to the integrated shell and serves to support the integrated shell and the plurality of battery cells; and / or, The integrated shell includes a first fixing post, and the separator is provided with a second fixing post. The first fixing post and the second fixing post are mated and fastened together.

7. The housing module according to claim 6, characterized in that, The separator is provided with a connecting part, which is connected to and fastened to the support column to connect the separator, the integrated shell and the first end shell.

8. The housing module according to any one of claims 1 to 5, characterized in that, The first connection structure includes a plurality of first connecting posts, and the first end shell is provided with a plurality of second connecting posts. Each first connecting post is mated with and fastened to one of the second connecting posts. The plurality of second connecting posts are spaced apart circumferentially along the first end shell; and / or The second connection structure includes a plurality of third connecting posts, and the second end shell is provided with a plurality of fourth connecting posts. Each of the third connecting posts and a fourth connecting post are mated and fastened together, and the plurality of fourth connecting posts are spaced apart along the circumference of the second end shell.

9. The housing module according to any one of claims 1 to 5, characterized in that, The separator has at least one mounting post on the side surface away from the first end shell, the mounting post being configured to mount the first circuit board assembly.

10. An energy storage device, characterized in that, include: The housing module as described in any one of claims 1 to 9; The battery cell is disposed in the sealed space of the housing module; The first circuit board assembly is disposed in the mounting space of the housing module; The second circuit board assembly is disposed in the mounting space of the housing module.

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