CN215816158U

CN215816158U - Energy storage equipment's shell body and energy storage equipment

Info

Publication number: CN215816158U
Application number: CN202121043576.8U
Authority: CN
Inventors: 王雷; 陈熙
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2022-02-11
Anticipated expiration: 2031-05-14

Abstract

The application is suitable for the field of energy storage power supplies, and discloses an outer shell of energy storage equipment and the energy storage equipment. The outer shell of the energy storage device comprises a first cover plate, a second cover plate and a side plate assembly, wherein the first cover plate and the second cover plate are arranged oppositely, the side plate assembly is detachably connected between the first cover plate and the second cover plate, and the first cover plate, the second cover plate and the side plate assembly are enclosed to form an accommodating cavity for accommodating a battery pack; the side plate assembly comprises two first side plates which are oppositely arranged and two second side plates which are oppositely arranged and are respectively connected with the two first side plates in a buckling mode, wherein the first side plates are connected with the first cover plate in a buckling mode, and the second side plates are connected with the first cover plate and the second cover plate in a buckling mode. The outer shell of the energy storage device is simple, convenient and quick to disassemble and assemble, and management and maintenance of the energy storage device are facilitated.

Description

Energy storage equipment's shell body and energy storage equipment

Technical Field

The application relates to the technical field of energy storage power supplies, in particular to an outer shell of an energy storage device and the energy storage device.

Background

The battery pack of the energy storage device is arranged in the box body, and circuit boards such as a distribution board (also called PD board) and a battery management system board (also called BMS board) are arranged between the inner side of the box body and the outer side of the battery pack. The box body is generally designed into an integral or split structure, the box body with the integral structure is simple in structure and convenient to assemble, but more equipment components need to be disassembled when a circuit board needs to be checked and maintained, and maintenance is not facilitated; the existing split structure box body is various and rough in connecting structure, a large number of screws are adopted to be fixedly connected with the battery pack or the internal support, the disassembly and the assembly are complex, and the assembly is not facilitated.

SUMMERY OF THE UTILITY MODEL

A first aim at of this application provides an energy storage device's shell body, and it aims at solving the technical problem that current box dismouting is complicated, inconvenient equipment.

A second object of the present application is to provide an energy storage device.

In order to achieve the first object, the present application provides the following solutions: the outer shell of the energy storage device comprises a first cover plate, a second cover plate and a side plate assembly, wherein the first cover plate and the second cover plate are arranged oppositely, the side plate assembly is detachably connected between the first cover plate and the second cover plate, and the first cover plate, the second cover plate and the side plate assembly enclose to form an accommodating cavity for accommodating a battery pack;

the side plate assembly comprises two oppositely arranged first side plates and two oppositely arranged second side plates which are respectively connected with the two first side plates in a buckling mode, wherein the first side plates are connected with the first cover plate in a buckling mode, and the second side plates are connected with the first cover plate and the second cover plate in a buckling mode.

As an embodiment, the first cover plate comprises a first cover portion and two connecting portions, the two connecting portions are respectively adjacent to two opposite sides of the first cover portion, and a step is formed between the first cover portion and each connecting portion;

the first side plate comprises a first vertical extension and a transverse extension, and the transverse extension extends from the end of the first vertical extension close to the first cover plate to the direction close to the first cover plate;

the transverse extending parts of the two first side plates are respectively installed on the two steps of the first cover plate in a butt joint mode.

As an implementation mode, the step includes with first lid portion vertically step face, be equipped with first hole groove structure on the step face, be equipped with second hole groove structure on the connecting portion, horizontal extension is equipped with first protruding knot and the protruding knot of second, first protruding knot card is located in the first hole groove structure, the protruding knot card of second is located in the second hole groove structure.

As an implementation manner, the connecting portion is provided with a first connecting hole, the lateral extending portion is provided with a second connecting hole, the second connecting hole is arranged corresponding to the first connecting hole, and the outer shell of the energy storage device further comprises a first fastener penetrating through the first connecting hole and the second connecting hole to connect the first cover plate and the first side plate.

As an implementation manner, the second cover plate is provided with a third connecting hole, the third connecting hole is arranged corresponding to the first connecting hole, and the first fastener is arranged in the third connecting hole, the first connecting hole and the second connecting hole in a penetrating manner to connect the first cover plate, the first side plate and the second cover plate.

In an embodiment, a first convex plate and a plurality of first convex teeth are convexly arranged on one side of the first cover plate facing the second cover plate, the first convex plate is arranged along the circumferential direction of the first cover plate, the plurality of first convex teeth are arranged in two rows at intervals, and each row of the first convex teeth and the first convex plate form a first clamping groove; first clamping plates are arranged at the end parts, close to the first cover plate, of the second side plates, and each first clamping plate is inserted into one first clamping groove to limit the transverse movement of the second side plates;

the orientation of first flange one side of first draw-in groove is equipped with the protruding knot of third, keeping away from of first cardboard one side of holding the chamber is equipped with third aperture groove structure, the protruding knot card of third is located in the third aperture groove structure in order to be used for the restriction second curb plate vertical movement.

As an implementation manner, the inner surfaces of the first side plate close to the two sides of the second side plate are respectively provided with a fourth hole and groove structure, the inner surfaces of the second side plate close to the two sides of the first side plate are respectively provided with a fourth convex buckle, and the fourth convex buckle is clamped in the fourth hole and groove structure to be used for fixedly connecting the first side plate and the second side plate; and/or the presence of a gas in the atmosphere,

the outer surfaces of the two sides of the first side plate, which are close to the second side plate, are respectively provided with a splicing groove, the two sides of the second side plate, which are close to the first side plate, are respectively provided with a splicing plate, and the splicing plates are arranged in the splicing grooves.

In an embodiment, the second cover plate includes a second cover portion, a second protruding plate, and a plurality of second protruding teeth, the second protruding plate is circumferentially protruded on a side of the second cover portion facing the first cover plate, the plurality of second protruding teeth are circumferentially arranged at intervals on a side of the second cover plate facing the first cover plate, and the plurality of second protruding teeth and the second protruding plate form a second slot; a second clamping plate is arranged at the end part, facing the second cover plate, of the first side plate, a third clamping plate is arranged at the end part, facing the second cover plate, of the second side plate, and the second clamping plate and the third clamping plate are clamped in the second clamping groove;

and a fifth hole groove structure is arranged on the third clamping plate, a fifth convex buckle is arranged at the position of the second convex plate corresponding to the third clamping plate, and the fifth convex buckle is clamped in the fifth hole groove structure to be fixedly connected with the second cover plate and the second side plate.

As an implementation manner, at least one of the first cover plate, the second cover plate, the first side plate and the second side plate is further provided with a fourth connecting hole, and the fourth connecting hole is used for a second fastener to penetrate through so as to lock the battery pack in the accommodating cavity.

In order to achieve the second objective, the present application provides the following solutions: energy storage equipment includes battery package, circuit board and the above energy storage equipment's shell body, the battery package with the circuit board is all located hold the intracavity, just the circuit board is located the battery package with between the shell body.

According to the outer shell of the energy storage device, the first cover plate is detachably connected with the first side plate and the second side plate, the second cover plate is detachably connected with the first side plate and the second side plate, and the first side plate is detachably connected with the second side plate; one end of each first side plate is connected with the first cover plate in a buckling mode, the two ends of each second side plate are connected with the first cover plate and the second cover plate in a buckling mode respectively, and the two sides of each first side plate are connected with the two second side plates in a buckling mode respectively, so that all parts of the outer shell are connected through buckles, and the dismounting is simple, convenient and fast. Therefore, the outer shell of the energy storage device is simple, convenient and quick to disassemble and assemble, and management and maintenance of the energy storage device are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an outer shell of an energy storage device provided in an embodiment of the present application;

fig. 2 is an exploded view of an outer housing of an energy storage device provided by an embodiment of the present application;

fig. 3 is a schematic structural diagram of an outer casing of an energy storage device provided in an embodiment of the present application after a second cover plate is removed;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of a first cover plate according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another perspective view of the first cover plate according to the embodiment of the present disclosure;

FIG. 7 is a partial enlarged view at B in FIG. 6;

FIG. 8 is a schematic view of a first side panel according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of a first side panel from another perspective provided by an embodiment of the present application;

FIG. 10 is a schematic view of a second side panel according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another perspective view of a second side plate according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a second cover plate provided in an embodiment of the present application;

FIG. 13 is an enlarged view of a portion of FIG. 12 at C;

fig. 14 is an exploded view of an energy storage device provided in an embodiment of the present application.

The reference numbers illustrate: 100. an energy storage device; 101. an outer housing; 10. a first cover plate; 11. a first cap portion; 12. a connecting portion; 13. a step; 14. a first convex plate; 15. a first lobe; 16. a first card slot; 20. a second cover plate; 21. a second cap portion; 22. a second convex plate; 23. a second lobe; 24. a second card slot; 25. a handle; 30. a side plate assembly; 31. a first side plate; 311. a first vertical extension; 312. a second vertical extension; 313. a lateral extension; 314. splicing grooves; 315. a second clamping plate; 32. a second side plate; 321. a first clamping plate; 322. splicing plates; 323. a third clamping plate; 40. an accommodating chamber; 51. a first hole and groove structure; 52. a second slot and hole structure; 53. a third configuration of portholes; 54. a fourth pore and groove structure; 55. a fifth hole and groove structure; 61. a first male buckle; 62. a second convex buckle; 63. a third convex buckle; 64. a fourth convex buckle; 65. a fifth convex buckle; 71. a first connection hole; 72. a second connection hole; 73. a third connection hole; 74. a fourth connection hole; 81. a first fastener; 102. a battery pack; 103. a circuit board; 104. a second fastener.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative positional relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions referred to as "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

As shown in fig. 1 to 3, an outer casing 101 of an energy storage device provided by an embodiment of the present application includes a first cover plate 10, a second cover plate 20, and a side plate assembly 30, where the first cover plate 10 and the second cover plate 20 are disposed opposite to each other, the side plate assembly 30 is detachably connected between the first cover plate 10 and the second cover plate 20, and the first cover plate 10, the second cover plate 20, and the side plate assembly 30 enclose to form an accommodating cavity 40 for accommodating a battery pack. The side plate assembly 30 includes two first side plates 31 disposed oppositely and two second side plates 32 disposed oppositely and connected to the two first side plates 31, one side of each first side plate 31 close to the first cover plate 10 is connected to the first cover plate 10 in a snap-fit manner, two opposite sides of each second side plate 32 are connected to the first cover plate 10 and the second cover plate 20 in a snap-fit manner, and the other two opposite sides of each second side plate 32 are connected to the two first side plates 31 in a snap-fit manner.

In the above design scheme, the outer casing 101 of the energy storage device includes a first cover plate 10, a second cover plate 20, two first side plates 31 and two second side plates 32, the first cover plate 10 is detachably connected with the first side plates 31 and the second side plates 32, the second cover plate 20 is detachably connected with the first side plates 31 and the second side plates 32, and the first side plates 31 are detachably connected with the second side plates 32, so that when the circuit board located in the accommodating cavity 40 needs to be inspected or maintained, the corresponding parts of the outer casing 101 can be detached according to the installation position of the circuit board. For example, the circuit board is installed at a position corresponding to one of the second side plates 32, and when the circuit board needs to be inspected, the circuit board can be repaired by removing the corresponding first side plate 31 after removing the second cover plate 20, without removing other components of the outer casing 101. Wherein, the one side that is close to first apron 10 of every first curb plate 31 is connected with first apron 10 buckle, and the double-phase offside of every second curb plate 32 is connected with first apron 10, second apron 20 buckle respectively, and the other double-phase offside of every second curb plate 32 is connected with two first curb plates 31 buckle respectively, connects through the buckle between each part of shell body 101, and the dismouting is simple, and is convenient and swift. Therefore, the outer shell 101 of the energy storage device provided by the embodiment of the application is convenient for maintaining the circuit board therein, and is simple, convenient and quick to disassemble and assemble.

Referring to fig. 5, 6 and 8, the first cover plate 10 includes a first cover portion 11 and two connecting portions 12, the two connecting portions 12 are respectively disposed on two opposite sides of the first cover portion 11, the first cover portion 11 and each connecting portion 12 form a step 13, the step 13 includes a step surface perpendicular to the first cover portion 11, a first hole and groove structure 51 is disposed on the step surface, and a second hole and groove structure 52 is disposed on the connecting portion 12.

In this embodiment, each step 13 is provided with a first and a

second slot structure

51, 52. The first side plate 31 includes a first vertical extension 311 and a horizontal extension 313, which are arranged in an L shape, the horizontal extension 313 matches with the step 13 in shape and size, the horizontal extension 313 extends from the end of the first vertical extension 311 close to the first cover plate 10 to the direction close to the first cover plate 10, the horizontal extension 313 is provided with a first convex buckle 61 and a second convex buckle 62, and the horizontal extension 313 is installed on the step 13 in a butt joint manner. The first convex buckle 61 is clamped in the first hole-groove structure 51 to limit the left and right movement of the first side plate 31, and the second convex buckle 62 is clamped in the second hole-groove structure 52 to limit the front and back movement of the first side plate 31.

In a specific application, the first cover 10 is a bottom cover of the outer casing 101, the second cover 20 is a top cover of the outer casing 101, one of the first side plates 31 is a front shell of the outer casing 101, the other first side plate 31 is a rear shell of the outer casing 101, one of the second side plates 32 is a left shell of the outer casing 101, and the other second side plate 32 is a right shell of the outer casing 101. When the outer case 101 is placed on the ground, the first cover plate 10 is in contact with the ground, the vertical direction is a direction perpendicular to the ground, the horizontal direction is a direction parallel to the ground, the front-rear direction is a direction in which the two first side plates 31 are arranged, and the left-right direction is a direction in which the two second side plates 32 are arranged.

The step 13 is arranged on the first cover plate 10, the transverse extension 313 of the first side plate 31 is installed on the step 13 in a butt joint mode, so that stable assembly of the first side plate 31 and the first cover plate 10 is guaranteed, the thickness of the transverse extension 313 is matched with the height of the step 13, and a flat bottom surface of the outer shell 101 can be formed after installation. Generally, the battery pack is installed on the bottom cover, and the gravity of battery pack is born by the bottom cover completely, and a part of first curb plate 31 bearing is on the bottom cover in this embodiment, and first curb plate 31 can form the bearing structure of integration with the bottom cover, can be jointly to installing the battery pack on the bottom cover and carry out the bearing, can improve the support intensity and the reliability of shell body 101, make the battery pack of bigger weight of installation in the shell body 101.

In this embodiment, each lateral extension 313 is provided with three first convex buckles 61 and two second convex buckles 62, each step 13 is correspondingly provided with three first hole and groove structures 51 and two second hole and groove structures 52, when the lateral extension 313 and the step 13 are in butt joint, the first convex buckles 61 are fastened and fixed with the first hole and groove structures 51, and the second convex buckles 62 are fastened and fixed with the second hole and groove structures 52. The number of the first convex buckles 61 and the second convex buckles 62 is not limited by the embodiment and the drawings, and can be increased or decreased according to actual requirements. It should be noted that the first hole-groove structure 51 and the second hole-groove structure 52 may be card holes or card grooves, and the specific structure is designed according to the requirement. Of course, as an alternative embodiment, it is also possible that the first male buckle 61 and the second male buckle 62 are both provided on the step 13, and the first hole and groove structure 51 and the second hole and groove structure 52 are both provided on the lateral extension 313.

Referring to fig. 2, 5, 6 and 8, the connecting portion 12 has a first connecting hole 71, the lateral extending portion 313 has a second connecting hole 72, the second connecting hole 72 is disposed corresponding to the first connecting hole 71, and the outer casing 101 of the energy storage device further includes a first fastening member 81 inserted into the first connecting hole 71 and the second connecting hole 72. The first fastener 81 is inserted into and connected with the first connecting hole 71 and the second connecting hole 72, so that the connection stability of the first side plate 31 and the first cover plate 10 is enhanced. In this embodiment, each connecting portion 12 is provided with two first connecting holes 71, each lateral extension portion 313 is provided with two second connecting holes 72, and the number of the first connecting holes 71 and the number of the second connecting holes 72 are not limited by the embodiment and the drawings, and can be increased or decreased according to actual requirements. In a specific application, the first connection hole 71 and the second connection hole 72 may be screw holes, and the first fastening member 81 may be a screw or a bolt.

Referring to fig. 2, 5, 8 and 12, the second cover plate 20 is provided with a third connecting hole 73, the third connecting hole 73 is disposed corresponding to the first connecting hole 71, and the first fastening member 81 is inserted into the third connecting hole 73, the first connecting hole 71 and the second connecting hole 72. By inserting the first fastening member 81 into the third connecting hole 73, the first connecting hole 71, and the second connecting hole 72, the stability of connection between the first cover plate 10, the second cover plate 20, and the first side plate 31 is improved, and the connection stability of the outer case 101 is further improved. In a specific application, the third connecting hole 73 may be a screw hole, the first fastener 81 may be a long bolt, and the long bolt passes through the third connecting hole 73, the first connecting hole 71 and the second connecting hole 72 to stably connect the first cover plate 10, the second cover plate 20 and the first side plate 31.

Referring to fig. 2-3, 6-7 and 10, a first protruding plate 14 and a plurality of first protruding teeth 15 are protruded from a side of the first cover plate 10 facing the second cover plate 20, the first protruding plate 14 is disposed along a circumferential direction of the first cover plate 10, the plurality of first protruding teeth 15 are arranged in two rows at intervals, and each row of first protruding teeth 15 and the first protruding plate 14 form a first engaging groove 16; the end of the second side plate 32 close to the first cover plate 10 is provided with first clamping plates 321, and each first clamping plate 321 is inserted into one first clamping slot 16 for limiting the second side plate 32 to move along the transverse direction. A third protruding buckle 63 is disposed on a side of the first protruding plate 14 facing the first locking groove 16, a third slot structure 53 is disposed on a side of the first locking plate 321 away from the accommodating cavity 40, and the third protruding buckle 63 is locked in the third slot structure 53 for limiting the second side plate 32 to move vertically. The second side plate 32 is inserted into the first slot 16 by the first clamping plate 321, and the third protrusion 63 is inserted into the third slot structure 53 and is fixedly connected to the first cover plate 10. In this embodiment, the first protruding board 14 is provided with three third protruding buckles 63, the first locking board 321 is correspondingly provided with three third hole slot structures 53, and the third protruding buckles 63 are fastened and fixed with the third hole slot structures 53 while the first locking board 321 and the first locking slot 16 are inserted and matched. The number of the third buckle 63 and the third slot structure 53 is not limited by the embodiment and the drawings, and can be increased or decreased according to actual requirements. It should be noted that the third hole slot structure 53 may be a card hole or a card slot, and the specific structure is designed according to the requirement. Of course, as an alternative embodiment, it is also possible that the third tab 63 is provided on the first catch 321 and the third aperture slot configuration 53 is provided on the first tab 14.

Referring to fig. 8 and 11, the inner surfaces of the two sides of the first side plate 31 close to the second side plate 32 are respectively provided with a fourth slot structure 54, the inner surfaces of the two sides of the second side plate 32 close to the first side plate 31 are respectively provided with a fourth protruding buckle 64, and the fourth protruding buckle 64 is clamped in the fourth slot structure 54 for fixedly connecting the first side plate 31 and the second side plate 32. The fourth hole-groove structure 54 may be a card hole or a card groove, and the specific structure is designed according to the requirement. Of course, as an alternative embodiment, it is also possible that the fourth convex buckle 64 is provided on the first side plate 31, and the fourth hole groove is provided on the second side plate 32.

Referring to fig. 1, 4, 8 and 11, the outer surfaces of the two sides of the first side plate 31 close to the second side plate 32 are respectively provided with a splicing groove 314, the two sides of the second side plate 32 close to the first side plate 31 are respectively provided with a splicing plate 322, and the splicing plates 322 are arranged in the splicing grooves 314. Through setting up splice groove 314 at first curb plate 31, set up splice plate 322 at second curb plate 32, splice plate 322 is in splice groove 314, helps reducing the joint gap of first curb plate 31 and second curb plate 32, plays spacing effect to the connection of first curb plate 31 and second curb plate 32 simultaneously, prevents that first curb plate 31 and second curb plate 32 from taking place to remove after shell body 101 atress. Of course, as an alternative embodiment, the splicing groove 314 is provided on the second side plate 32, and the splicing plate 322 is provided on the first side plate 31.

As an embodiment, the first side plate 31 further includes two second vertical extending portions 312, the two second vertical extending portions 312 are respectively disposed at two sides of the first vertical extending portion 311 close to the two first side plates 31, and the second vertical extending portions 312 extend from the first vertical extending portion 311 toward a direction close to the second side plate 32. Wherein the fourth slot structure 54 and the splice groove 314 are both disposed on the second vertical extension 312. Of course, in other embodiments, it is possible that the second vertical extension 312 is not provided.

Referring to fig. 2, 9-10 and 12-13, the second cover plate 20 includes a second cover portion 21, a second protruding plate 22 and a plurality of second protruding teeth 23, the second protruding plate 22 is circumferentially protruded on a side of the second cover portion 21 facing the first cover plate 10, the plurality of second protruding teeth 23 are circumferentially spaced and arranged on a side of the second cover plate 20 facing the first cover plate 10, and the plurality of second protruding teeth 23 and the second protruding plate 22 form a second engaging groove 24; a second clamping plate 315 is arranged at the end part of the first side plate 31 facing the second cover plate 20, a third clamping plate 323 is arranged at the end part of the second side plate 32 facing the second cover plate 20, and the second clamping plate 315 and the third clamping plate 323 are inserted into the second clamping groove 24; the third locking plate 323 is provided with a fifth hole and groove structure 55, a fifth buckle 65 is provided at a position of the second convex plate 22 corresponding to the third locking plate 323, and the fifth buckle 65 is clamped in the fifth hole and groove structure 55 for fixedly connecting the second cover plate 20 and the second side plate 32. The first side plate 31 is inserted into the second slot 24 through the second locking plate 315 to be connected to the second cover plate 20, the second side plate 32 is inserted into the second slot 24 through the third locking plate 323, and the fifth protrusion 65 is inserted into the fifth slot structure 55 to be fixedly connected to the second cover plate 20. In this embodiment, two fifth convex buckles 65 are disposed on the third clamping plate 323, two fifth hole and groove structures 55 are correspondingly disposed on the second convex plate 22, and the fifth convex buckles 65 and the fifth hole and groove structures 55 are fastened and fixed while the third clamping plate 323 and the second clamping groove 24 are inserted and matched. The number of the fifth convex buckles 65 and the number of the fifth hole-groove structures 55 are not limited by the embodiment and the drawings, and can be increased or decreased according to actual requirements. It should be noted that the fifth hole-groove structure 55 may be a card hole or a card groove, and the specific structure is designed according to the requirement. Of course, as an alternative embodiment, it is also possible that the fifth hole and groove structure 55 is provided on the second protruding plate 22, and the fifth protruding buckle 65 is provided on the third clamping plate 323.

As a practical way, the second cover plate 20 is provided with a handle 25, so that the user can move the outer casing 101 through the handle 25.

Referring to fig. 3, 6, 8, 10 and 12, at least one of the first cover plate 10, the second cover plate 20, the first side plate 31 and the second side plate 32 is further provided with a fourth connecting hole 74, and the fourth connecting hole 74 is used for a second fastener to pass through so as to lock the battery pack in the accommodating cavity 40. In this embodiment, the first cover plate 10, the second cover plate 20, the first side plate 31 and the second side plate 32 are provided with fourth connection holes 74, and the first connection holes 71 and the second connection holes 72 may also be used for locking the battery pack.

When the outer casing 101 provided by the embodiment of the present application is assembled, at first, two first side plates 31 are installed on the first cover plate 10, then two second side plates 32 are installed on the first cover plate 10, when the second side plates 32 are installed on the first cover plate 10, the fourth protruding buckle 64 is clamped into the fourth slot structure 54, so that the first side plates 31 and the two adjacent second side plates 32 are connected together, the two first side plates 31 and the two second side plates 32 enclose to form a stable structure, and finally, the second cover plate 20 is covered on the two first side plates 31 and the two second side plates 32, thereby completing the assembly of the outer casing 101.

The outer shell 101 of the energy storage device provided by the embodiment has a stable and firm overall structure, and can bear and fix a battery pack with a large weight.

Referring to fig. 1, fig. 3 and fig. 14, an energy storage device 100 according to an embodiment of the present application further includes a battery pack 102, a circuit board 103, and an outer casing 101 of the energy storage device, where the battery pack 102 and the circuit board 103 are both disposed in the accommodating cavity 40, and the circuit board 103 is located between the battery pack 102 and the outer casing 101. By adopting the outer shell 101, when the circuit board 103 needs to be overhauled or replaced, only the component parts of the outer shell 101 corresponding to the circuit board 103 are disassembled, and the disassembly is simple and quick.

As an embodiment, the energy storage device 100 further includes a second fastener 104, and at least one of the first cover plate 10, the second cover plate 20, the first side plate 31 and the second side plate 32 is detachably connected to the battery pack 102 through the second fastener 104. By providing the second fastening member 104, the stability of the battery pack 102 in the receiving cavity 40 is improved.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related technical fields within the spirit of the present application are included in the scope of the present application.

Claims

1. The outer shell of the energy storage device is characterized by comprising a first cover plate, a second cover plate and a side plate assembly, wherein the first cover plate and the second cover plate are arranged oppositely, the side plate assembly is detachably connected between the first cover plate and the second cover plate, and the first cover plate, the second cover plate and the side plate assembly are enclosed to form an accommodating cavity for accommodating a battery pack;

2. The outer case of an energy storage device of claim 1, wherein the first cover plate comprises a first cover portion and two connecting portions, the two connecting portions respectively abut two opposite sides of the first cover portion, and a step is formed between the first cover portion and each connecting portion;

3. The outer casing of the energy storage device according to claim 2, wherein the step comprises a step surface perpendicular to the first cover body, the step surface is provided with a first hole and groove structure, the connecting portion is provided with a second hole and groove structure, the lateral extension portion is provided with a first convex buckle and a second convex buckle, the first convex buckle is clamped in the first hole and groove structure, and the second convex buckle is clamped in the second hole and groove structure.

4. The outer casing of the energy storage device according to claim 2, wherein the connecting portion has a first connecting hole, the lateral extending portion has a second connecting hole, the second connecting hole is disposed corresponding to the first connecting hole, and the outer casing of the energy storage device further includes a first fastener penetrating through the first connecting hole and the second connecting hole to connect the first cover plate and the first side plate.

5. The outer casing of the energy storage device according to claim 4, wherein the second cover plate is provided with a third connecting hole, the third connecting hole is disposed corresponding to the first connecting hole, and the first fastener is inserted into the third connecting hole, the first connecting hole and the second connecting hole to connect the first cover plate, the first side plate and the second cover plate.

6. The outer casing of the energy storage device according to any one of claims 1 to 5, wherein a side of the first cover plate facing the second cover plate is convexly provided with a first convex plate and a plurality of first convex teeth, the first convex plate is arranged along the circumferential direction of the first cover plate, the plurality of first convex teeth are arranged in two rows at intervals, and each row of the first convex teeth and the first convex plate form a first clamping groove; first clamping plates are arranged at the end parts, close to the first cover plate, of the second side plates, and each first clamping plate is inserted into one first clamping groove to limit the transverse movement of the second side plates;

7. The outer casing of the energy storage device according to any one of claims 1 to 5, wherein the inner surfaces of the first side plate near the two sides of the second side plate are respectively provided with a fourth hole and groove structure, the inner surfaces of the second side plate near the two sides of the first side plate are respectively provided with a fourth convex buckle, and the fourth convex buckles are clamped in the fourth hole and groove structures for fixedly connecting the first side plate and the second side plate; and/or the presence of a gas in the atmosphere,

8. The outer casing of the energy storage device according to any one of claims 1 to 5, wherein the second cover plate comprises a second cover body portion, a second convex plate and a plurality of second convex teeth, the second convex plate is circumferentially protruded on one side of the second cover body portion facing the first cover plate, the plurality of second convex teeth are circumferentially arranged at intervals on one side of the second cover plate facing the first cover plate, and the plurality of second convex teeth and the second convex plate form a second clamping groove; a second clamping plate is arranged at the end part, facing the second cover plate, of the first side plate, a third clamping plate is arranged at the end part, facing the second cover plate, of the second side plate, and the second clamping plate and the third clamping plate are clamped in the second clamping groove;

9. The outer casing of the energy storage device according to any one of claims 1 to 5, wherein at least one of the first cover plate, the second cover plate, the first side plate and the second side plate is further provided with a fourth connecting hole, and the fourth connecting hole is used for a second fastener to penetrate through so as to lock the battery pack in the accommodating cavity.

10. An energy storage device, comprising a battery pack, a circuit board and an outer casing of the energy storage device as claimed in any one of claims 1 to 9, wherein the battery pack and the circuit board are both disposed in the accommodating cavity, and the circuit board is located between the battery pack and the outer casing.