Shell assembly and energy storage equipment

Abstract

The utility model relates to the technical field of energy storage, and particularly discloses a shell assembly and energy storage equipment. The shell assembly comprises a first shell part and a second shell part, and a holding part is formed on the first shell part; the first shell part and the second shell part are in plug-in fit along a first direction, the second shell part is in plug-in fit with the first shell part through a first plug-in structure along two opposite side edges of a second direction, and the second shell part is in plug-in fit with the first shell part through a second plug-in structure along two opposite side edges of a third direction; the first shell part and the second shell part are in guide fit in the first direction through at least one guide structure, and an included angle is formed between the second direction and the third direction and is orthogonal to the first direction. The assembled shell assembly can be assembled on the bottom shell of the energy storage equipment through the first shell part, namely, the holding part can be connected with the bottom shell through the first shell part, so that the steps of aligning and assembling the holding part and the bottom shell are reduced, and the assembly efficiency of the energy storage equipment is improved.

Description

Technical Field

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

[0002] The housing of the energy storage device has a handle. To facilitate the injection molding of the housing and the handle, the housing is usually disassembled at the position corresponding to the handle. For example, in the related art, the housing includes an independent top shell, a disassembled part, a handle, and a bottom shell. During general assembly, the handle, the disassembled part, and the top shell are respectively assembled to the bottom shell. In this way, at least three assembly processes are required to complete the assembly. In each assembly step, the two parts to be assembled need to be aligned first and then connected, which is not convenient for the rapid assembly of the housing and the assembly efficiency is low. Summary of the Utility Model

[0003] In view of this, this application provides a housing assembly and an energy storage device, which can facilitate the assembly of the housing assembly and improve the assembly efficiency of the energy storage device.

[0004] An embodiment of this application provides a housing assembly applied to an energy storage device. The energy storage device includes a bottom shell, and the housing assembly includes a first housing part and a second housing part. The first housing part is formed with a holding part; the first housing part and the second housing part are inserted and matched along a first direction, and the opposite two side edges of the second housing part along a second direction are inserted and matched with the first housing part through a first insertion structure, and the opposite two side edges of the second housing part along a third direction are inserted and matched with the first housing part through a second insertion structure; the first housing part and / or the second housing part are configured to be detachably connected to the bottom shell. The first housing part and the second housing part are guided and matched along the first direction through at least one group of guiding structures. The second direction and the third direction form an included angle, and both are orthogonal to the first direction.

[0005] In the above housing assembly, during assembly, guiding along the first direction through at least one group of guiding structures can guide the second housing part to be assembled to the first housing part, so as to facilitate the rapid alignment of the first housing part and the second housing part and improve the assembly efficiency. During the insertion process of the first housing part and the second housing part, through the guiding cooperation of the first insertion structure and the second insertion structure, the assembly of the first housing part and the second housing part along the first direction is realized, and the first insertion structure and the second insertion structure can limit the movement of the first housing part and the second housing part in the second direction and the third direction, improving the connection stability of the first housing part and the second housing part in the second direction and the third direction. The assembled housing assembly can be assembled to the bottom shell of the energy storage device through the first housing part and / or the second housing part, that is, the holding part can be connected to the bottom shell through the first housing part and / or the second housing part, reducing the steps of aligning and assembling the holding part and the bottom shell, thereby being beneficial to improving the assembly efficiency of the energy storage device.

[0006] In some embodiments, the first plug-in structure includes a first connecting portion and a second connecting portion which are arranged on the first shell portion and are opposite to each other in the second direction, and a first matching portion and a second matching portion which are arranged on the second shell portion and are opposite to each other in the second direction; the second plug-in structure includes a third connecting portion and a fourth connecting portion which are arranged on the first shell portion and are opposite to each other in the third direction, and a third matching portion and a fourth matching portion which are arranged on the second shell portion and are opposite to each other in the third direction; the first connecting portion and the first matching portion are detachably connected, the second connecting portion and the second matching portion are detachably connected, the third connecting portion and the third matching portion are detachably connected, and the fourth connecting portion and the fourth matching portion are detachably connected.

[0007] In the above embodiment, in the second direction, the first connecting part, the second connecting part and the first matching part, the second matching part are detachably connected, so that the first shell part and the second shell part are not easy to move relative to each other in the second direction; in the third direction, the third connecting part, the fourth connecting part and the third matching part, the fourth matching part are detachably connected, so that the first shell part and the second shell part are not easy to move relative to each other in the third direction. The above setting method limits the four positions of the first shell part and the second shell part, so that the first shell part and the second shell part are not easy to move relative to each other, nor are they easy to rotate relative to each other, thereby improving the stability of the connection between the first shell part and the second shell part.

[0008] In some embodiments, the first connecting portion includes a first buckle portion, the first buckle portion has a first slot, and the first matching portion is configured to be plug-matched with the first slot in the second direction.

[0009] In the above-mentioned embodiment, the assembly direction of the first shell portion and the second shell portion is the first direction, and the plug-in direction of the first matching portion and the first slot is the second direction, that is: after the first shell portion and the second shell portion are plugged in and matched along the first direction, the first matching portion and the first slot are plugged in along the second direction. This makes it difficult for the first matching portion to disengage from the first slot when the first shell portion and the second shell portion are subjected to a force along the first direction, thereby making it difficult for the first shell portion and the second shell portion to separate.

[0010] In some embodiments, the first connecting portion further includes a first reinforcing rib, and the first reinforcing rib connects the first shell portion and the first buckle portion.

[0011] In the above embodiment, the first buckle portion is connected to the first shell portion through the first reinforcing rib, thereby improving the structural strength of the first buckle portion, so that the first buckle portion is not easily broken and failed when subjected to the force of the first matching portion.

[0012] In some embodiments, the second matching portion includes a second buckle portion, the second buckle portion has a second slot, and the second connecting portion is configured to be plug-matched with the second slot in the first direction.

[0013] In the above embodiments, the insertion direction of the second connecting portion into the second card slot is the same as the mating direction of the first housing portion and the second housing portion. This enables the second connecting portion to be inserted into the second card slot smoothly during the process of assembling the first housing portion to the second housing portion, thereby improving the convenience of connecting the second mating portion and the second connecting portion. Moreover, the second connecting portion and the second slot can also guide the second mating structure to mate along the first direction.

[0014] In some embodiments, the second mating portion further includes a second reinforcing rib, and the second reinforcing rib is connected to the second latching portion.

[0015] In the above embodiments, the provision of the second reinforcing rib is conducive to improving the structural strength of the second latching portion, such that when the second latching portion is connected to the second mating portion, it is not easily damaged by the acting force of the second mating portion.

[0016] In some embodiments, the guiding structure includes a first guiding portion provided on the first housing portion and a first guiding mating portion provided on the second housing portion. The first guiding mating portion is configured to be inserted into the first guiding portion along the first direction; the first guiding portion has a first limiting groove, and the first limiting groove is configured to accommodate a part of the first guiding mating portion to limit the movement of the first guiding mating portion in the second direction; a second limiting groove is formed between the first guiding portion and the first housing portion, and the second limiting groove is configured to accommodate a part of the first guiding mating portion to limit the movement of the first guiding mating portion in the third direction.

[0017] In the above embodiments, a part of the first guiding mating portion is restricted by the first limiting groove and a part is restricted by the second limiting groove, such that after the first guiding mating portion is connected to the second guiding portion, the first housing portion and the second housing portion are not easily moved relative to each other in the second direction, nor are they easily moved relative to each other in the third direction. That is to say, it can not only guide the first housing portion and the second housing portion to be assembled along the first direction, improving the assembly accuracy of the first housing portion and the second housing portion, but also limit the first housing portion and the second housing portion.

[0018] An embodiment of the present application further provides an energy storage device, including a bottom case, a battery pack, and the housing assembly in any of the above embodiments. The first housing portion is connected to the bottom case, and the housing assembly and the bottom case enclose a receiving cavity, and the battery pack is disposed in the receiving cavity.

[0019] In the above embodiments, after the housing assembly is assembled, it is further assembled with the bottom case to form a receiving cavity, thereby protecting the battery pack. By improving the assembly efficiency of the first housing portion and the second housing portion, the assembly efficiency of the energy storage device is further improved.

[0020] In some embodiments, the assembly direction of the first housing portion and the bottom case is the first direction. The second housing portion is provided with a second guiding portion, and the bottom case is provided with a second guiding mating portion; the second guiding portion is configured to be inserted into the second guiding mating portion along the first direction for mating.

[0021] In the above embodiments, the second guiding portion and the second guiding and cooperating portion can guide the first housing portion to be assembled on the bottom case, thereby improving the assembly accuracy between the first housing portion and the bottom case.

[0022] In some embodiments, the first housing portion is provided with a fifth connecting portion, and the bottom case is provided with a fifth cooperating portion, and the fifth connecting portion and the fifth cooperating portion are detachably connected.

[0023] In the above embodiments, through the detachable connection between the fifth connecting portion and the second cooperating portion, the assembly of the housing assembly and the bottom case is facilitated, and the disassembly and separation of the housing assembly and the bottom case are also facilitated, thereby facilitating the disassembly and assembly of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope.

[0025] Figure 1 FIG. is a perspective view of an energy storage device provided in an embodiment of the present application.

[0026] Figure 2 For Figure 1 the exploded view of the energy storage device in FIG.

[0027] Figure 3 For Figure 2 the perspective view of the housing assembly in FIG.

[0028] Figure 4 For Figure 2 the exploded view of the housing assembly in FIG.

[0029] Figure 5 FIG. is a perspective view of the housing assembly from another angle in an embodiment of the present application.

[0030] Figure 6 For Figure 3 the enlarged view of part VI in FIG.

[0031] Figure 7 For Figure 5 the enlarged view of part VII in FIG.

[0032] Figure 8 FIG. is a partial schematic view of the housing assembly in an embodiment of the present application.

[0033] Figure 9 It is a partial schematic view for showing Figure 8 the first guiding portion in FIG.

[0034] Figure 10 FIG. is a perspective view for showing the mating relationship between the second housing portion and the bottom case.

[0035] Description of Main Component Symbols

[0036] 1000 - Energy storage device, 100 - Housing assembly, 10 - First housing part

[0037] 11 - Holding part, 12 - Fifth connection part, 20 - Second housing part

[0038] 21 - Reinforcing rib, 22 - Second guiding part, 30 - First plug - in structure

[0039] 31 - First connection part, 311 - First buckle part, 312 - First card slot

[0040] 313 - First reinforcing rib, 32 - Second connection part, 33 - First mating part

[0041] 34 - Second mating part, 341 - Second buckle part, 342 - Second card slot

[0042] 343 - Second reinforcing rib, 40 - Second plug - in structure, 41 - Third connection part

[0043] 411 - Third card slot, 42 - Fourth connection part, 421 - Fourth card slot

[0044] 43 - Third mating part, 44 - Fourth mating part, 50 - Guiding structure

[0045] 51 - First guiding part, 511 - First limiting groove, 512 - Second limiting groove

[0046] 513 - Limiting block, 52 - First guiding mating part, 53 - Stop block

[0047] 54 - Guide block, 60 - Clearance area, 200 - Bottom shell

[0048] 201 - Accommodation cavity, 202 - Second guiding mating part, 203 - Fifth mating part

[0049] 300 - Battery pack, 400 - Inverter module, Z - First direction

[0050] X - Second direction, Y - Third direction Detailed Implementation Modes

[0051] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific implementation modes and are not intended to limit this application.

[0053] In the description of the present application, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0054] The housing of the energy storage device has a handle. For the convenience of injection molding of the housing and the handle, the position of the housing corresponding to the handle usually undergoes a disassembly process. For example, in the related art, the housing includes an independent top shell, a disassembled part, a handle, and a bottom shell. During final assembly, the handle, the disassembled part, and the top shell are respectively assembled to the bottom shell. In this way, at least three assembly processes are required to complete the assembly. In each assembly step, the two parts to be assembled need to be aligned first and then connected, which is not convenient for the rapid assembly of the housing and results in low assembly efficiency.

[0055] An embodiment of the present application provides a housing assembly applied to an energy storage device. The energy storage device includes a bottom shell, and the housing assembly includes a first housing part and a second housing part. The first housing part is formed with a holding part; the first housing part and the second housing part are inserted and matched with each other along a first direction. The opposite two side edges of the second housing part along a second direction are inserted and matched with the first housing part through a first insertion structure, and the opposite two side edges of the second housing part along a third direction are inserted and matched with the first housing part through a second insertion structure; the first housing part and / or the second housing part is configured to be detachably connected to the bottom shell. The first housing part and the second housing part are guided and matched along the first direction through at least one set of guiding structures. The second direction and the third direction form an included angle, and both are orthogonal to the first direction.

[0056] In the above-mentioned housing assembly, during assembly, by guiding along the first direction through at least one set of guiding structures, the second housing part can be guided to be assembled to the first housing part, so as to facilitate the rapid alignment of the first housing part and the second housing part and improve the assembly efficiency. During the insertion process of the first housing part and the second housing part, through the guiding cooperation of the first insertion structure and the second insertion structure, the assembly of the first housing part and the second housing part along the first direction is realized, and the first insertion structure and the second insertion structure can limit the movement of the first housing part and the second housing part in the second direction and the third direction, improving the connection stability of the first housing part and the second housing part in the second direction and the third direction. The assembled housing assembly can be assembled to the bottom shell of the energy storage device through the first housing part and / or the second housing part, that is: the holding part can be connected to the bottom shell through the first housing part, reducing the steps of aligning and assembling the holding part and the bottom shell, thereby being beneficial to improving the assembly efficiency of the energy storage device.

[0057] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0058] See Figure 1 And Figure 2, an embodiment of the present application provides a housing assembly 100 and an energy storage device 1000. The energy storage device 1000 includes a bottom case 200, a battery pack 300, an inverter module 400, and a housing assembly 100. The first housing part 10 is connected to the bottom case 200, and the housing assembly 100 and the bottom case 200 enclose a receiving cavity 201. The battery pack 300 and the inverter module 400 are disposed in the receiving cavity 201, and the inverter module 400 is disposed on the battery pack 300. The energy storage device 1000 can be a household or industrial and commercial energy storage power supply, or a portable mobile power supply, etc.

[0059] Referring to Figure 2 With Figure 3 , in some embodiments, the housing assembly 100 includes a first housing part 10 and a second housing part 20. The first housing part 10 and the second housing part 20 are inserted and mated with each other along a first direction. The opposite two side edges of the second housing part 20 along a second direction are inserted and mated with the first housing part 10 through a first insertion structure 30, and the opposite two side edges of the second housing part 20 along a third direction are inserted and mated with the first housing part 10 through a second insertion structure 40; the first housing part 10 and the second housing part 20 are guided and mated along the first direction through at least one set of guiding structures 50. The second direction and the third direction form an included angle, and both are orthogonal to the first direction. The first direction is the extending direction of the straight line where the Z-axis is located in the figure, the second direction is the extending direction of the straight line where the X-axis is located in the figure, and the third direction is the extending direction of the straight line where the Y-axis is located in the figure. For the convenience of description, the following uses "first direction Z" to represent the first direction, "second direction X" to represent the second direction, and "third direction Y" to represent the third direction.

[0060] The first housing part 10 and / or the second housing part 20 is configured to be detachably connected to the bottom case 200. For example, the first housing part 10 is detachably connected to the bottom case 200; or, the second housing part 20 is detachably connected to the bottom case 200; or, the first housing part 10 and the second housing part 20 are respectively detachably connected to the bottom case 200. Among them, the detachable connection method includes but is not limited to snap connection, screw connection and other methods.

[0061] When assembling the first housing part 10 and the second housing part 20, guiding along the first direction Z through at least one set of guiding structures 50 can guide the second housing part 20 to be assembled to the first housing part 10, facilitating the quick alignment of the first housing part 10 and the second housing part 20 and improving the assembly efficiency. During the insertion process of the first housing part 10 and the second housing part 20, through the guiding cooperation of the first insertion structure 30 and the second insertion structure 40, the assembly of the first housing part 10 and the second housing part 20 along the first direction Z is realized, and the assembly of the first housing part 10 and the second housing part 20 is achieved. Moreover, the first insertion structure 30 and the second insertion structure 40 can restrict the movement of the first housing part 10 and the second housing part 20 in the second direction X and the third direction Y, improving the connection stability of the first housing part 10 and the second housing part 20 in the second direction X and the third direction Y.

[0062] Refer to Figure 1 and Figure 2 , in some embodiments, the first housing part 10 is formed with a holding part 11 for a user to manipulate the mobile energy storage device 1000. The holding part 11 is arranged on the side of the second housing part 20 facing away from the accommodating cavity 201, and a clearance area 60 is formed between the holding part 11 and the side of the second housing part 20 facing away from the accommodating cavity 201. When the user takes the holding part 11 with the hand, the clearance area 60 can accommodate the user's hand for easy holding.

[0063] The assembled housing assembly 100 can be assembled to the bottom case 200 of the energy storage device 1000 through the first housing part 10 and / or the second housing part 20, that is: the holding part 11 can be connected to the bottom case 200 through the first housing part 10, reducing the steps of aligning and assembling the holding part 11 and the bottom case 200, thus being conducive to improving the assembly efficiency of the energy storage device 1000.

[0064] Refer to Figure 2 and Figure 3 , the second housing part 20 is provided with a reinforcing rib 21 located on the side of the second housing part 20 facing the accommodating cavity 201. The reinforcing rib 21 can improve the overall structural strength of the second housing part 20, and the reinforcing rib 21 faces the accommodating cavity 201, which can reduce the influence of the external structure of the energy storage device 1000 and is conducive to improving the comfort of user use.

[0065] Refer to Figures 3 to 5 , in some embodiments, the first insertion structure 30 includes a first connecting part 31 and a second connecting part 32 arranged on the first housing part 10 and oppositely arranged in the second direction X, and a first matching part 33 and a second matching part 34 arranged on the second housing part 20 and oppositely arranged in the second direction X.

[0066] The second pair of insertion structures 40 includes a third connecting portion 41 and a fourth connecting portion 42 which are disposed on the first housing portion 10 and are oppositely disposed in the third direction Y, and a third mating portion 43 and a fourth mating portion 44 which are disposed on the second housing portion 20 and are oppositely disposed in the third direction Y.

[0067] The first connecting portion 31 and the first mating portion 33 are detachably connected, the second connecting portion 32 and the second mating portion 34 are detachably connected, the third connecting portion 41 and the third mating portion 43 are detachably connected, and the fourth connecting portion 42 and the fourth mating portion 44 are detachably connected.

[0068] In the second direction X, the first housing portion 10 and the second housing portion 20 are not easily relatively movable in the second direction X by detachably connecting the first connecting portion 31, the second connecting portion 32 and the first mating portion 33, the second mating portion 34; in the third direction Y, the first housing portion 10 and the second housing portion 20 are not easily relatively movable in the third direction Y by detachably connecting the third connecting portion 41, the fourth connecting portion 42 and the third mating portion 43, the fourth mating portion 44. The above arrangement limits the four positions of the first housing portion 10 and the second housing portion 20, so that the first housing portion 10 and the second housing portion 20 are not easily relatively movable and are not easily relatively rotatable, thereby improving the connection stability between the first housing portion 10 and the second housing portion 20.

[0069] In some embodiments, a plurality of the first connecting portions 31, the second connecting portions 32, the third connecting portions 41 and the fourth connecting portions 42 are respectively provided, and a plurality of the first mating portions 33, the second mating portions 34, the third mating portions 43 and the fourth mating portions 44 are also respectively provided to enhance the connection firmness between the first housing portion 10 and the second housing portion 20.

[0070] In some embodiments, the second direction X is orthogonal to the third direction Y, that is, the first direction Z, the second direction X and the third direction Y are perpendicular to each other in pairs, which enables the first pair of insertion structures 30 and the second pair of insertion structures 40 to limit the first housing portion 10 and the second housing portion 20 from being easily movable in two mutually perpendicular directions, thereby improving the assembly stability between the first housing portion 10 and the second housing portion 20.

[0071] In some embodiments, the first connecting portion 31 and the second connecting portion 32 can elastically deform in a direction away from each other in the second direction X to expand the distance between the first connecting portion 31 and the second connecting portion 32, so as to facilitate the assembly of the first mating portion 33 to the first connecting portion 31 and the assembly of the second mating portion 34 to the second connecting portion 32.

[0072] Refer to Figure 3 、 Figure 4 And Figure 6In some embodiments, the first connecting portion 31 includes a first snap-fit ​​portion 311 , the first snap-fit ​​portion 311 has a first slot 312 , and the first matching portion 33 is configured to be plug-fitted with the first slot 312 in the second direction X.

[0073] The assembly direction of the first shell 10 and the second shell 20 is the first direction Z, and the plug-in direction of the first matching portion 33 and the first card slot 312 is the second direction X, that is: after the first shell 10 and the second shell 20 are plugged in and matched along the first direction Z, the first matching portion 33 and the first card slot 312 are plugged in along the second direction X. This makes it difficult for the first shell 10 and the second shell 20 to be separated from the first card slot 312 when the first shell 10 and the second shell 20 are subjected to a force along the first direction Z, thereby making it difficult for the first shell 10 and the second shell 20 to be separated.

[0074] See also Figure 6 In some embodiments, the first connection portion 31 further includes a first reinforcing rib 313, and the first reinforcing rib 313 connects the first shell portion 10 and the first buckle portion 311. The first buckle portion 311 is connected to the first shell portion 10 through the first reinforcing rib 313, thereby improving the structural strength of the first buckle portion 311, so that the first buckle portion 311 is not easily broken and failed when subjected to the force of the first matching portion 33.

[0075] In some embodiments, each first connection portion 31 includes a plurality of first reinforcing ribs 313 , for example, each first connection portion 31 includes three first reinforcing ribs 313 . The provision of the plurality of first reinforcing ribs 313 can further improve the structural strength of the first connection portion 31 .

[0076] See also Figure 4 , Figure 5 and Figure 7 In some embodiments, the second matching portion 34 includes a second snap-fit ​​portion 341 , the second snap-fit ​​portion 341 has a second slot 342 , and the second connecting portion 32 is configured to be plug-fitted with the second slot 342 in the first direction Z.

[0077] The plugging direction of the second connecting portion 32 and the second card slot 342 is consistent with the plugging and matching direction of the first shell 10 and the second shell 20, so that when the first shell 10 is assembled to the second shell 20, the second connecting portion 32 can be plugged into the second card slot 342, thereby improving the convenience of connecting the second matching portion 34 with the second connecting portion 32. In addition, the second connecting portion 32 and the second card slot 342 can also guide the second plugging structure 40 to mate along the first direction Z.

[0078] See also Figure 7, in some embodiments, the second engaging portion 34 further includes a second reinforcing rib 343, and the second reinforcing rib 343 is connected to the second engaging portion 341. The provision of the second reinforcing rib 343 is conducive to improving the structural strength of the second engaging portion 341, such that when the second engaging portion 341 is connected to the second engaging portion 34, it is not easily damaged by the acting force of the second engaging portion 34.

[0079] Refer to Figure 4 and Figure 8 , in some embodiments, the third connecting portion 41 has a third slot 411, and the third engaging portion 43 is configured to be inserted and engaged with the third slot 411 in the third direction Y. The fourth connecting portion 42 has a fourth slot 421, and the fourth engaging portion 44 is configured to be inserted and engaged with the fourth slot 421 in the third direction Y. The third connecting portion 41 and the fourth connecting portion 42 can elastically deform in a direction away from each other in the third direction Y to increase the distance between the third connecting portion 41 and the fourth connecting portion 42, so as to facilitate the insertion of the third engaging portion 43 into the third slot 411 and the insertion of the fourth engaging portion 44 into the fourth slot 421.

[0080] Refer to Figure 4 and Figure 8 and Figure 9 , in some embodiments, the guiding structure 50 includes a first guiding portion 51 provided on the first housing portion 10 and a first guiding and engaging portion 52 provided on the second housing portion 20, and the first guiding and engaging portion 52 is configured to be inserted and engaged with the first guiding portion 51 along the first direction Z. The first guiding portion 51 has a first limiting slot 511, and the first limiting slot 511 is configured to accommodate a part of the first guiding and engaging portion 52 to limit the movement of the first guiding and engaging portion 52 in the second direction X; a second limiting slot 512 is formed between the first guiding portion 51 and the first housing portion 10, and the second limiting slot 512 is configured to accommodate a part of the first guiding and engaging portion 52 to limit the movement of the first guiding and engaging portion 52 in the third direction Y.

[0081] Exemplarily, the first guiding portion 51 includes two limiting blocks 513, the two limiting blocks 513 are spaced apart in the second direction X to form the first limiting slot 511, and the first guiding and engaging portion 52 can be inserted into the first limiting slot 511 along the first direction Z; the two limiting blocks 513 and the first housing portion 10 are spaced apart in the third direction Y to form the second limiting slot 512, and a part of the second guiding and engaging portion 202 can be inserted into the second limiting slot 512 along the first direction Z.

[0082] Part of the first guiding and mating portion 52 is restricted by the first limiting groove 511 and part is restricted by the second limiting groove 512. After the first guiding and mating portion 52 is connected to the second guiding portion 22, the first housing portion 10 and the second housing portion 20 are not likely to move relative to each other in the second direction X, nor are they likely to move relative to each other in the third direction Y. That is to say, it can not only guide the assembly of the first housing portion 10 and the second housing portion 20 along the first direction Z, improve the assembly accuracy of the first housing portion 10 and the second housing portion 20, but also limit the first housing portion 10 and the second housing portion 20.

[0083] Refer to Figure 4 and Figure 5 , in some embodiments, there are two guiding structures 50, and the two guiding structures 50 are distributed along the third direction Y. For example, the first guiding portion 51 and the third connecting portion 41 of one of the guiding structures 50 are arranged on the same side of the first housing portion 10, and the first guiding and mating portion 52 and the third mating portion 43 of one of the guiding structures 50 are arranged on the same side of the first housing portion 10; the first guiding portion 51 and the fourth connecting portion 42 of the other guiding structure 50 are arranged on the same side of the first housing portion 10, and the first guiding and mating portion 52 and the fourth mating portion 44 of the other guiding structure 50 are arranged on the same side of the first housing portion 10. By guiding the second housing portion 20 to be assembled to the first housing portion 10 through the two guiding structures 50, the assembly accuracy of the housing assembly 100 can be further improved, which is beneficial to the blind assembly of the housing assembly 100.

[0084] Refer to Figure 3 and Figure 6 , in some embodiments, the guiding structure 50 further includes a stop block 53 and a guiding block 54. The stop block 53 is arranged on the first housing portion 10 and is on the same side of the first housing portion 10 as the first connecting portion 31, and the stop block 53 extends along the first direction Z; the guiding block 54 is arranged on the second housing portion 20. When assembling the first housing portion 10 and the second housing portion 20, by moving the guiding block 54 along the extending direction of the stop block 53, the second housing portion 20 can be assembled to the first housing portion 10, and the stop block 53 is used to abut against the guiding block 54 in the second direction X to limit the relative movement of the first housing portion 10 and the second housing portion 20 in the second direction X.

[0085] Refer to Figure 10 , in some embodiments, the assembly direction of the first housing portion 10 and the bottom shell 200 is the first direction Z. The second housing portion 20 is provided with a second guiding portion 22, and the bottom shell 200 is provided with a second guiding and mating portion 202; the second guiding portion 22 is configured to be inserted and mated with the second guiding and mating portion 202 along the first direction Z. Exemplarily, the second guiding and mating portion 202 is a slot, and the second guiding portion 22 is a plug, and the plug can be inserted into the slot along the first direction Z.

[0086] The second guiding portion 22 and the second guiding and mating portion 202 can guide the first housing portion 10 to be assembled to the bottom housing 200, thereby improving the assembly accuracy of the first housing portion 10 and the bottom housing 200.

[0087] Referring to Figure 2 , in some embodiments, the first housing portion 10 is provided with a fifth connecting portion 12, and the bottom housing 200 is provided with a fifth mating portion 203. The fifth connecting portion 12 and the fifth mating portion 203 are detachably connected. Exemplarily, the fifth connecting portion 12 is a buckle, and the second mating portion 34 is a buckle mating portion. Through the mutual engagement of the buckle and the buckle mating portion, the connection between the first housing portion 10 and the bottom housing 200 is achieved.

[0088] Through the detachable connection between the fifth connecting portion 12 and the second mating portion 34, the assembly of the housing assembly 100 and the bottom housing 200 is facilitated, and the disassembly and separation of the housing assembly 100 and the bottom housing 200 are also facilitated, thereby facilitating the disassembly and assembly of the battery pack 300.

[0089] In addition, those of ordinary skill in the art of the present technology should recognize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. As long as within the scope of the spirit of the present application, appropriate changes and variations made to the above embodiments fall within the scope of the disclosure of the present application.

Claims

1. A housing assembly, applied to an energy storage device, wherein the energy storage device comprises a bottom housing, characterized in that: The housing assembly comprises: A first shell portion, formed with a grip portion; a second shell portion, wherein the first shell portion and the second shell portion are plugged together along a first direction, and opposite side edges of the second shell portion along the second direction are plugged together with the first shell portion through a first plugging structure, and opposite side edges of the second shell portion along a third direction are plugged together with the first shell portion through a second plugging structure, and the first shell portion and / or the second shell portion are configured to be detachably connected to the bottom shell; The first shell portion and the second shell portion are guided and matched along the first direction by at least one set of guiding structures. The second direction and the third direction form an angle and are both orthogonal to the first direction.

2. The housing assembly according to claim 1, wherein: The first plug-in structure includes a first connecting portion and a second connecting portion which are disposed on the first shell portion and are opposite to each other in the second direction, and a first matching portion and a second matching portion which are disposed on the second shell portion and are opposite to each other in the second direction; The second plug-in structure includes a third connecting portion and a fourth connecting portion which are disposed on the first shell portion and are opposite to each other in the third direction, and a third matching portion and a fourth matching portion which are disposed on the second shell portion and are opposite to each other in the third direction; The first connecting portion is detachably connected to the first matching portion, the second connecting portion is detachably connected to the second matching portion, the third connecting portion is detachably connected to the third matching portion, and the fourth connecting portion is detachably connected to the fourth matching portion.

3. The housing assembly according to claim 2, wherein: The first connecting portion includes a first buckle portion having a first slot, and the first matching portion is configured to be plug-matched with the first slot in the second direction.

4. The housing assembly according to claim 3, characterized in that: The first connecting portion further includes a first reinforcing rib, and the first reinforcing rib connects the first shell portion and the first buckle portion.

5. The housing assembly according to claim 2, wherein: The second matching portion includes a second buckle portion, the second buckle portion has a second slot, and the second connecting portion is configured to be plug-matched with the second slot in the first direction.

6. The housing assembly according to claim 5, characterized in that: The second matching portion further includes a second reinforcing rib, and the second reinforcing rib is connected to the second buckle portion.

7. The housing assembly according to any one of claims 1 to 6, characterized in that: The guide structure includes a first guide portion arranged on the first shell portion and a first guide matching portion arranged on the second shell portion, the first guide matching portion being configured to be plugged into the first guide portion along the first direction; the first guide portion has a first limiting groove, the first limiting groove being configured as the first guide matching portion of the accommodating portion to limit the movement of the first guide matching portion in the second direction; a second limiting groove is formed between the first guide portion and the first shell portion, the second limiting groove being configured as the first guide matching portion of the accommodating portion to limit the movement of the first guide matching portion in a third direction.

8. An energy storage device, characterized in that: It comprises a bottom shell, a battery pack and a shell assembly as described in any one of claims 1 to 7, wherein the first shell portion is connected to the bottom shell, and the shell assembly and the bottom shell are combined to form a accommodating cavity, and the battery pack is arranged in the accommodating cavity.

9. The energy storage device according to claim 8, characterized in that: The assembly direction of the first shell portion and the bottom shell is the first direction, the second shell portion is provided with a second guide portion, and the bottom shell is provided with a second guide matching portion; the second guide portion is configured to be plug-matched with the second guide matching portion along the first direction.

10. The energy storage device according to claim 8, characterized in that: The first shell portion is provided with a fifth connecting portion, and the bottom shell is provided with a fifth matching portion, and the fifth connecting portion is detachably connected to the fifth matching portion.

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