CN220324620U - Energy storage device and energy storage system - Google Patents

Abstract

The utility model discloses an energy storage device and an energy storage system, wherein the energy storage device comprises: the box body and the fan are provided with a mounting part; the fan is provided with a connecting part, the connecting part and the mounting part are in running fit with the axis of the motor as a pivot axis so as to be switched between a mounting position and a dismounting position, the mounting part is used for limiting the connecting part axially, and the fan is detachable in the dismounting position. From this, simple structure need not to fix the fan on the end plate of box through the fastener, has simplified installation or dismantlement step, but install or dismantlement fan fast, has reduced the degree of difficulty of installation or dismantlement fan, can also save time, has improved assembly efficiency, and the fan is more reliable and stable with the assembly of box, convenient to detach fan to maintain, wash or change the fan.

Description

Energy storage device and energy storage system

Technical Field

The present utility model relates to the field of battery technologies, and in particular, to an energy storage device and an energy storage system.

Background

At present, an energy storage device mainly adopts an air cooling and heat dissipation mode, and a fan is arranged on the energy storage device, so that hot air in the energy storage device is discharged out of the energy storage device through the fan. In the prior art, the fan is fixed on the energy storage device by using fasteners such as screws, and the fan can be mounted and dismounted only by means of tools in the mode, so that time and labor are wasted during mounting and dismounting.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an energy storage device, which can quickly install and detach a fan, and reduce the difficulty of installation and detachment.

The utility model further provides an energy storage system adopting the energy storage device.

According to an embodiment of the present utility model, an energy storage device includes: the fan comprises a box body and a fan, wherein an end plate of the box body is provided with a mounting part; the fan is provided with a connecting part which is in running fit with the mounting part by taking the rotation axis of the fan as a pivot axis so as to switch between a mounting position and a dismounting position, wherein the mounting part and the connecting part are at least partially overlapped in the axial direction of the rotation axis, and the mounting part and the connecting part are spaced in the axial direction of the rotation axis in the dismounting position.

According to the energy storage device provided by the embodiment of the utility model, the connection part and the mounting part are in running fit to realize the switching between the mounting position and the dismounting position, when the fan is in the mounting position, the mounting part and the connection part are matched and clamped, the fan can be fixed on the box body, when the fan is in the dismounting position, the connection part is staggered from the mounting part, the mounting part and the connection part are not clamped, and the fan can be directly dismounted from the box body. Like this, simple structure need not to fix the fan on the end plate of box through the fastener, has simplified installation or dismantlement step, but install or dismantlement fan fast, has reduced the degree of difficulty of installation or dismantlement fan, can also save time, has improved assembly efficiency, and the fan is more reliable and stable with the assembly of box, convenient to detach fan to maintain, wash or change the fan.

In some embodiments, the mounting portion or the connection portion is formed as a socket, and the corresponding connection portion or the mounting portion is formed as a plug member that is plug-fitted with the socket. The installation department and the connecting portion are simple in structure, the installation department and the connecting portion can be matched in a plugging mode through rotation, and the stability of assembly of the fan and the box body can be improved.

Specifically, have the apopore on the end plate, the fan set up in the apopore, the installation department is a plurality of, a plurality of the installation department is in the circumference of apopore upwards the interval sets up, the connecting portion is a plurality of, a plurality of connecting portion form in on the frame of fan, and in the circumference of frame upwards the interval sets up the mounted position, connecting portion with the installation department grafting cooperation the dismantlement position, the installation department with the connecting portion is in the crisscross setting in the week side of pivot axis. Therefore, the fan can be conveniently mounted and dismounted by rotating the fan body to switch between the mounting position and the dismounting position, and the mounting and dismounting efficiency is improved.

Further, the inserting grooves are arc grooves, the inserting pieces are arc protrusions, the inserting grooves are multiple in number, the arc grooves are identical in structure, the arc protrusions are identical in structure, and the arc grooves and the arc protrusions are concentrically arranged. Like this, the two simple structure, it is convenient to make, avoids inserting groove and plug connector to appear the two cooperation of edges and corners influence, makes connecting portion and installation department can cooperate smoothly, can accomplish assembly or dismantlement through rotatory fan, and convenient assembly or dismantlement have improved assembly or dismantlement efficiency.

Still further, the mounting portion is formed as a plug, the plug including: the arc-shaped plate and the arc-shaped bulge located on one side of the arc-shaped plate, which faces the pivot axis, are connected with the box body, and the arc-shaped bulge is spaced apart from the box body. Like this, arc wall part is located between arc arch and the box, and the arc is protruding does not influence the arc wall and normally rotates, and the arc is protruding can peg graft in the arc wall, to arc wall block so that the fan stably assembles on the box.

In some embodiments, the connection portion comprises: the first plate and the second plate are oppositely arranged in the axial direction of the pivot axis, the third plate is connected with the first plate and the second plate, the first plate, the second plate and the third plate define the inserting groove, the arc-shaped protrusion stretches into the inserting groove, the first plate is connected with the frame, and the second plate is inserted into a gap between the arc-shaped protrusion and the box body. The structure of the inserting groove is simple, the inserting groove is arranged to be of the structure, the fan can be guaranteed to normally rotate, the arc-shaped protrusions and the inserting groove are guaranteed to be in inserting fit, the fan is only required to rotate when the fan is used, the inserting groove is enabled to coincide with the arc-shaped protrusions, the arc-shaped protrusions are in inserting fit in the inserting groove, the assembly of the fan and the box body can be achieved, and the fan can be separated from the box body only by rotating the fan to enable the inserting groove to be staggered with the arc-shaped protrusions when the fan is detached.

Specifically, the arc-shaped bulge is positioned on one radial side of the arc-shaped plate, and a reinforcing rib is arranged on one side of the arc-shaped plate, which faces away from the arc-shaped bulge. Like this, can strengthen the structural strength of arc, improve the spacing stability of arc protruding to the jack groove.

In some embodiments, a limiting rib is disposed at one end of the plugging slot in the circumferential direction to limit the installation direction and the disassembly direction of the fan. Therefore, the limiting ribs can strengthen the structural strength of the inserting grooves and can limit the installation direction and the disassembly direction of the fan.

Specifically, the angle sum of the equivalent fan-shaped parts of the plurality of arc-shaped grooves and the angle sum of the equivalent fan-shaped parts of the plurality of arc-shaped bulges are 45-90 degrees. Like this, can ensure the stability that arc wall and arc protruding are connected, and can ensure to dismantle the convenience.

In some embodiments, the box body is provided with a plurality of battery modules, a cooling air channel is defined between the adjacent battery modules, the box body is provided with an air outlet, and the fan is arranged in the air outlet and is opposite to the cooling air channel. Like this, through setting up cooling air duct, the battery module heat dissipation of being convenient for has improved radiating effect and radiating efficiency, just sets up the fan with cooling air duct, can take out the hot-blast in the cooling air duct more fast effectively, realizes quick cooling.

Specifically, a wire passing groove is formed in the frame of the fan, a wire passing hole opposite to the wire passing groove is formed in the box body, and the connecting wire of the fan sequentially penetrates through the wire passing groove and the wire passing hole to extend into the box body. Like this, easy to assemble, the connecting wire of being convenient for penetrates the box, and can reduce the disability rate of connecting wire, difficult rupture connecting wire, the cost is reduced.

An energy storage system according to an embodiment of the present utility model includes: the energy storage device of any of the above embodiments. Therefore, the heat dissipation performance of the energy storage system is improved, so that the energy storage system is more stable in operation and higher in use safety.

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

Drawings

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

FIG. 1 is a schematic diagram of an energy storage device according to an embodiment of the present utility model;

FIG. 2 is a schematic illustration of a fan of an energy storage device in an installed position according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at circle A;

fig. 4 is a schematic structural view of a mounting portion according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a connection portion according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a structure of a limiting rib arranged on a plugging slot;

fig. 7 is a schematic view of a cooling duct according to an embodiment of the present utility model.

Reference numerals:

the energy storage device 100 is configured to store energy,

the box body 10, the mounting part 11, the plug connector 111, the arc-shaped plate 1111, the arc-shaped protrusion 1112, the reinforcing rib 1113, the wire passing hole 12, the air outlet hole 13,

fan 20, connection 21, socket slot 211, first plate 2111, second plate 2112, third plate 2113, stop rib 2114, wire passing slot 22,

the cooling air duct 30,

and a battery module 40.

Detailed Description

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

An energy storage device 100 and an energy storage system according to an embodiment of the present utility model are described below with reference to fig. 1-7.

As shown in fig. 1 and 2, an energy storage device 100 according to an embodiment of the present utility model includes a case 10 and a fan 20.

Wherein the end plate of the case 10 is provided with a mounting portion 11; the fan 20 is provided with a connection portion 21, and the connection portion 21 is rotatably fitted with the mounting portion 11 about a rotation axis of the fan 20 as a pivot axis to switch between a mounting position in which the mounting portion 11 and the connection portion 21 at least partially overlap in an axial direction of the rotation axis, and a demounting position in which the mounting portion 11 and the connection portion 21 are spaced apart in the axial direction of the rotation axis.

Specifically, the fan 20 is mounted on the casing 10 of the energy storage device 100, and the fan 20 extracts the air in the casing 10, so as to effectively take away the heat generated by the battery module 40 in the energy storage device 100. An opening is formed in one side end plate of the box body 10, the fan 20 is mounted at the opening, the mounting portion 11 is arranged on the end plate for mounting the fan 20, the mounting portion 11 is located in the circumferential direction of the opening, the connecting portion 21 is arranged on the periphery of the fan 20, the connecting portion 21 can rotate relative to the mounting portion 11, and the connecting portion and the mounting portion can be in rotary fit by taking a rotation axis of the fan 20 as a pivot.

It should be noted that, the fan 20 may be mounted to and dismounted from the case 10 by rotating the fan 20, if the connecting portion 21 rotates to a position at least partially overlapping with the mounting portion 11, and the connecting portion 21 is engaged with the mounting portion 11, at this time, the connecting portion 21 is at the mounting position, so that the fan 20 may be mounted to the case 10, and the fan 20 may not be mounted to the case 10 by a fastener; if the connecting portion 21 rotates to a position offset from the mounting portion 11, the connecting portion 21 and the mounting portion 11 are spaced apart in the axial direction of the rotation axis, and the mounting portion 11 and the connecting portion 21 are not engaged, at this time, the connecting portion 21 is at the detaching position, so that the fan 20 can be directly detached from the case 10, and the fan 20 is detached from the case 10 without using a tool to unscrew the fastener.

The bottle cap is matched with the threads of the bottle opening, if the bottle cap is rotated to enable the threads of the bottle cap to coincide with the threads of the bottle opening, the bottle cap can be screwed by the two matched threads, and if the bottle cap is rotated to enable the threads of the bottle cap to be staggered with the threads of the bottle opening, the bottle cap can be opened by separating the two matched threads; for example, the T-shaped fixing portion and the C-shaped groove can be engaged with each other, and if the C-shaped groove is rotated to overlap the T-shaped fixing portion, the T-shaped fixing portion is inserted into the C-shaped groove, and the T-shaped fixing portion and the C-shaped groove are positioned at the mounting position, and if the C-shaped groove is rotated to be offset from the T-shaped fixing portion, the T-shaped fixing portion and the C-shaped groove are separated, and the T-shaped fixing portion and the C-shaped groove are positioned at the dismounting position.

According to the energy storage device 100 of the embodiment of the present utility model, the connection portion 21 and the mounting portion 11 are rotatably engaged to switch between the mounting position and the dismounting position, in the mounting position, the mounting portion 11 and the connection portion 21 are engaged to fix the fan 20 to the case 10, in the dismounting position, the connection portion 21 is staggered from the mounting portion 11, the mounting portion 11 and the connection portion 21 are not engaged any more, and the fan 20 can be directly dismounted from the case 10. Like this, simple structure need not to fix fan 20 on the end plate of box 10 through the fastener, has simplified installation or dismantlement step, can install or dismantle fan 20 fast, has reduced the degree of difficulty of installing or dismantling fan 20, can also save time, has improved assembly efficiency, and fan 20 and box 10's assembly is more reliable and stable, convenient to detach fan 20 to maintain, wash or change fan 20.

As shown in fig. 4 and 5, in some embodiments, the mounting portion 11 or the connection portion 21 is formed as a socket groove 211, and the corresponding connection portion 21 or the mounting portion 11 is formed as a socket 111 that is socket-fitted with the socket groove 211.

Specifically, one of the mounting portion 11 and the connection portion 21 is formed as the insertion groove 211, the other is formed as the insertion piece 111, and if the mounting portion 11 is formed as the insertion groove 211, the connection portion 21 is formed as the insertion piece 111, and at the mounting position, the connection portion 21 is inserted into the mounting portion 11, and the connection portion 21 is engaged with the mounting portion 11; when the mounting portion 11 is formed as the connector 111, the connection portion 21 is formed as the insertion groove 211, and the mounting portion 11 is inserted into the connection portion 21 at the mounting position, and the mounting portion 11 is engaged with the connection portion 21.

The structure of the mounting part 11 and the connecting part 21 is simple, the plug-in matching of the mounting part 11 and the connecting part 21 can be realized through rotation, and the assembling stability of the fan 20 and the box body 10 can be improved.

As shown in fig. 3 to 5, specifically, the end plate has an air outlet hole 13, the fan 20 is disposed in the air outlet hole 13, the plurality of mounting portions 11 are disposed at intervals in the circumferential direction of the air outlet hole 13, the plurality of connecting portions 21 are disposed at intervals in the circumferential direction of the frame of the fan 20, the plurality of connecting portions 21 are formed on the frame of the fan 20, the connecting portions 21 are in plug-fit with the mounting portions 11 at the mounting position, and the mounting portions 11 and the connecting portions 21 are disposed at intervals in the circumferential direction of the pivot axis at the dismounting position.

The opening on the end plate of the case 10 is the air outlet hole 13, the periphery of the air outlet hole 13 is provided with a plurality of mounting parts 11 at intervals, the frame of the fan 20 is provided with a plurality of connecting parts 21 at intervals, the number of the mounting parts 11 is identical to that of the connecting parts 21, the interval between the adjacent mounting parts 11 is equal to that between the adjacent connecting parts 21, when in the mounting position, the connecting parts 21 are overlapped with the mounting parts 11, the two are matched in an inserting way, and the mounting parts 11 are clamped with the connecting parts 21; in the removal position, the connection portion 21 is offset from the mounting portion 11, and the mounting portion 11 and the connection portion 21 are not engaged any more, so that the fan 20 can be removed from the casing 10. Thus, the fan 20 can be conveniently mounted and dismounted by switching between the mounting position and the dismounting position through rotation, and the mounting and dismounting efficiency is improved.

Further, the inserting groove 211 is an arc groove, the inserting piece 111 is an arc protrusion 1112, the inserting groove 211 and the inserting piece 111 are multiple, the structures of the arc grooves are the same, the structures of the arc protrusions 1112 are the same, and the arc grooves and the arc protrusions 1112 are concentrically arranged.

Specifically, the concentric arrangement of the inserting groove 211 and the inserting piece 111, and the plurality of arc grooves are arranged to be of the same structure, the plurality of arc protrusions 1112 are arranged to be of the same structure, so that the inserting piece 111 can be ensured to be successfully matched with the inserting groove 211 in an inserting way, the inserting groove 211 is constructed to be an arc groove, the inserting piece 111 is constructed to be the arc protrusion 1112, the structure of the arc protrusion 1112 is simple, the manufacturing is convenient, the inserting groove 211 and the inserting piece 111 are prevented from being matched with each other due to the influence of the edges and corners, the connecting part 21 and the mounting part 11 can be matched smoothly, the assembly or the disassembly can be completed through the rotary fan 20, the assembly or the disassembly is convenient, and the assembly or the disassembly efficiency is improved.

As shown in fig. 4, in some embodiments, the mounting portion 11 is formed as a plug 111, the plug 111 including: an arcuate plate 1111 and an arcuate protrusion 1112 on a side of the arcuate plate 1111 facing the pivot axis, the arcuate plate 1111 being connected to the housing 10 and the arcuate protrusion 1112 being spaced from the housing 10.

It should be noted that, the mounting portion 11 protrudes from the end plate of the case 10, the mounting portion 11 is formed as a plug 111, which is configured as a T-shaped structure, one end of the arc plate 1111 is connected to the case 10, the other end extends outward of the case 10, one end of the arc protrusion 1112 is connected to one side of the arc plate 1111 toward the rotation axis, the other end extends toward the rotation axis, and the arc protrusion 1112 is disposed at an interval from the end plate of the case 10. Thus, the arc groove is partially located between the arc protrusions 1112 and the end plate of the case 10, the arc protrusions 1112 do not affect the normal rotation of the arc groove, and the arc protrusions 1112 can be inserted into the arc grooves to be clamped so that the fan 20 is stably assembled on the case 10.

As shown in fig. 2 and 5, specifically, the connection portion 21 includes: the first plate 2111 and the second plate 2112, the third plate 2113 connecting the first plate 2111 and the second plate 2112, and the first plate 2111, the second plate 2112, and the third plate 2113 which are disposed opposite each other in the axial direction of the pivot axis define the insertion groove 211, the arc-shaped protrusions 1112 extend into the insertion groove 121, the first plate 2111 is connected to the frame, and the second plate 2112 is inserted into the gap between the arc-shaped protrusions 1112 and the housing 10.

It should be noted that, the first plate 2111 and the second plate 2112 are spaced and oppositely disposed, and are parallel to the end plate, the first plate 2111 is connected to the frame, the second plate 2112 is disposed away from the frame, the third plate 2113 is located between the first plate 2111 and the second plate 2112, the ends of the third plate 2113 are connected to one end of the first plate 2111 and one end of the second plate 2112, which is close to the pivot axis, respectively, the first plate 2111, the second plate 2112 and the third plate 2113 define a C-shaped insertion slot 211, the second plate 2112 is inserted between the arc-shaped protrusion 1112 and the end plate, the second plate 2112 is located at a side of the arc-shaped protrusion 1112 away from the end plate, and the arc-shaped protrusion 1112 is inserted into the insertion slot 211.

The structure of the inserting groove 211 is simple, the inserting groove 211 is arranged into the structure, the fan 20 can be ensured to normally rotate, the arc protrusions 1112 and the inserting groove 211 are ensured to be in inserting fit, the fan 20 is only required to be rotated when the fan is used, the inserting groove 211 is overlapped with the arc protrusions 1112, the arc protrusions 1112 are in inserting fit in the inserting groove 211, the assembly of the fan 20 and the box body 10 can be realized, and the fan 20 and the box body 10 can be separated only by rotating the fan 20 to stagger the inserting groove 211 and the arc protrusions when the fan 20 is disassembled.

Preferably, as shown in fig. 4, the arc-shaped protrusions 1112 are located on a radial side of the arc-shaped plate 1111, and a side of the arc-shaped plate 1111 facing away from the arc-shaped protrusions 1112 is provided with a reinforcing rib 1113. One side of the arc 1111 away from the arc protrusion 1112 is provided with at least one reinforcing rib 1113, and the structural strength of the arc 1111 can be enhanced by the reinforcing rib 1113, so that the stability of the arc protrusion 1112 on limiting of the inserting groove 211 is improved.

As shown in fig. 6, further, a limiting rib 2114 is provided at one end of the insertion groove 211 in the circumferential direction to limit the mounting direction and the dismounting direction of the fan 20.

Specifically, a limiting rib 2114 may be disposed in the inserting groove 211, one end of the limiting rib 2114 is connected with the third plate 2113, the other end extends toward the arc plate 1111, the limiting rib 2114 is disposed at intervals with the first plate 2111 and the second plate 2112, when the fan 20 rotates until the arc protrusion 1112 is overlapped with the inserting groove 211, the arc protrusion 1112 may be inserted between the first plate 2111 and the limiting rib 2114, or between the limiting rib 2114 and the second plate 2112, and the limiting rib 2114 may strengthen the structural strength of the inserting groove 211. The spacing rib 2114 may also be disposed at one end of the insertion slot 211, and when the arc protrusion 1112 is in insertion engagement with the insertion slot 211, the arc protrusion 1112 abuts against the spacing rib 2114, and the spacing rib 2114 can define the mounting direction and the dismounting direction of the fan 20.

Specifically, the angle sum of the equivalent fan shape of the plurality of arc grooves, the angle sum of the equivalent fan shape of the plurality of arc protrusions 1112 are 45 ° to 90 °.

It should be noted that, the sum of angles of equivalent sectors of the plurality of arc grooves is the sum of angles of central angles of the plurality of arc grooves, and the central angle of each arc groove is an angle formed by a connecting line of an arc starting point and a circle center of each arc groove and a connecting line of an arc end point and the circle center of each arc groove; the sum of the angles of the equivalent sectors of the plurality of arc-shaped protrusions 1112 is the sum of the angles of the central angles of the plurality of arc-shaped protrusions 1112, and the central angle of each arc-shaped protrusion 1112 is the angle formed between the connecting line of the arc-shaped starting point of each arc-shaped protrusion 1112 and the center of the circle and the connecting line of the arc-shaped end point of each arc-shaped protrusion 1112 and the center of the circle.

In this way, the angle sum of the equivalent sectors of the plurality of arc grooves, the angle sum of the equivalent sectors of the plurality of arc protrusions 1112 are set within this range, the stability of the connection of the arc grooves and the arc protrusions 1112 can be ensured, and the convenience of detachment can be ensured.

If the angle sum of the equivalent fan shapes of the arc grooves and the angle sum of the equivalent fan shapes of the arc protrusions 1112 are smaller than the range, the stability of the plug-in fit of the arc grooves and the arc protrusions 1112 is poor, and the fan 20 is not firmly connected with the box 10; if the angle sum of the equivalent sectors of the arc grooves and the angle sum of the equivalent sectors of the arc protrusions 1112 are larger than the range, the fan 20 is difficult to rotate, the inserting grooves 211 are not easy to be staggered from the arc protrusions, and the disassembly is inconvenient.

As shown in fig. 7, in some embodiments, a plurality of battery modules 40 are disposed in the case 10, and a cooling air duct 30 is defined between adjacent battery modules 40, the case 10 has an air outlet 13, and the fan 20 is disposed in the air outlet 13 and faces the cooling air duct 30.

Specifically, a plurality of battery modules 40 are arranged in the box 10 at intervals, gaps between adjacent battery modules 40 form a cooling air duct 30, an opening of the box 10 for installing the fan 20 is an air outlet 13, the air outlet 13 is opposite to the cooling air duct 30 between the adjacent battery modules 40, heat generated by the operation of the battery modules 40 is emitted into the cooling air duct 30, the fan 20 is started, hot air in the cooling air duct 30 is pumped out of the box 10, and heat generated by the battery modules 40 can be effectively taken away, so that the battery modules 40 are convenient to dissipate heat through the cooling air duct 30, the heat dissipation effect and the heat dissipation efficiency are improved, the fan 20 is opposite to the cooling air duct 30, hot air in the cooling air duct 30 can be more rapidly and effectively pumped out, and rapid cooling is realized.

As shown in fig. 4 and 5, specifically, a wire passing groove 22 is provided on the frame of the fan 20, a wire passing hole 12 opposite to the wire passing groove 22 is provided on the case 10, and a connection wire of the fan 20 sequentially passes through the wire passing groove 22 and the wire passing hole 12 to extend into the case 10.

It should be noted that, be equipped with wire casing 22 on the frame, wire casing 22 is sunken towards fan 20 central direction by the frame edge, be equipped with wire hole 12 on the box 10, wire hole 12 is sunken towards box 10 edge direction by air outlet 13, when the mounted position, wire casing 22 is just right with wire hole 12, the connecting wire is worn to establish wire casing 22 and wire hole 12 and is stretched into in the box 10, the connecting wire includes power supply line and control pencil, control pencil control fan 20's rotational speed and suitable time are opened, the power supply line is connected with the low voltage output electricity in the energy memory 100, in order to realize the power supply. Through setting up wire casing 22 and wire hole 12, easy to assemble, the connecting wire of being convenient for penetrates box 10, and can reduce the disability rate of connecting wire, be difficult for the rupture connecting wire, the cost is reduced.

An energy storage system according to an embodiment of the present utility model includes: the energy storage device 100 of any of the above embodiments. The energy storage system comprises the energy storage device 100, and the energy storage system can be a battery pack, an energy storage container and the like, and by adopting the energy storage device 100 of the embodiment of the application, the heat dissipation performance of the energy storage system can be improved, so that the operation of the energy storage system is more stable, and the use safety is higher.

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

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

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

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

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

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims (12)

1. An energy storage device, comprising:

a box body (10), wherein an end plate of the box body (10) is provided with a mounting part (11);

fan (20), fan (20) is provided with connecting portion (21), connecting portion (21) with install portion (11) use the axis of rotation of fan (20) is pivot pivoted cooperation in order to switch between mounted position and dismantlement position, in the mounted position, install portion (11) with connecting portion (21) are in at least partial coincidence in the axial of axis of rotation, in the dismantlement position, install portion (11) with connecting portion (21) are in the axial of axis of rotation is spaced apart.

2. Energy storage device according to claim 1, characterized in that the mounting portion (11) or the connecting portion (21) is formed as a socket (211), the corresponding connecting portion (21) or the mounting portion (11) being formed as a plug (111) in plug-in engagement with the socket (211).

3. The energy storage device according to claim 2, wherein the end plate is provided with an air outlet hole (13), the fan (20) is arranged in the air outlet hole (13), the installation parts (11) are multiple, the installation parts (11) are arranged at intervals in the circumferential direction of the air outlet hole (13), the connection parts (21) are multiple, the connection parts (21) are formed on the frame of the fan (20) and are arranged at intervals in the circumferential direction of the frame, in the installation position, the connection parts (21) are in plug-in fit with the installation parts (11), and in the removal position, the installation parts (11) and the connection parts (21) are arranged at intervals on the circumferential side of the pivot axis.

4. The energy storage device according to claim 2, wherein the insertion groove (211) is an arc groove, the insertion piece (111) is an arc protrusion (1112), the insertion groove (211) and the insertion piece (111) are multiple, the arc grooves are identical in structure, the arc protrusions (1112) are identical in structure, and the arc grooves and the arc protrusions (1112) are concentrically arranged.

5. An energy storage device according to claim 3, characterized in that the mounting portion (11) is formed as a plug (111), the plug (111) comprising: an arcuate plate (1111) and an arcuate protrusion (1112) located on a side of the arcuate plate (1111) facing the pivot axis, the arcuate plate (1111) being connected to the housing (10), the arcuate protrusion (1112) being spaced apart from the housing (10).

6. Energy storage device according to claim 5, characterized in that the connection (21) comprises: first board (2111) and second board (2112) that set up relatively in the axial of pivot, connect first board (2111) with third board (2113) of second board (2112), first board (2111) second board (2112) and third board (2113) define jack groove (211), arc protruding (1112) stretches into jack groove (211), first board (2111) with the frame links to each other, second board (2112) inserts in arc protruding (1112) with in the clearance between box (10).

7. Energy storage device according to claim 5, characterized in that the arc-shaped protrusion (1112) is located on a radial side of the arc-shaped plate (1111), the side of the arc-shaped plate (1111) facing away from the arc-shaped protrusion (1112) being provided with a stiffening rib (1113).

8. The energy storage device according to claim 2, characterized in that a limit rib (2114) is provided at one circumferential end of the insertion groove (211) to define an installation direction and a removal direction of the fan (20).

9. Energy storage device according to claim 4, characterized in that the angle sum of the equivalent sectors of the plurality of arc-shaped grooves and the angle sum of the equivalent sectors of the plurality of arc-shaped protrusions (1112) are each 45 ° to 90 °.

10. The energy storage device according to claim 1, wherein the case (10) is provided with a plurality of battery modules (40), a cooling air duct (30) is defined between adjacent battery modules (40), the case (10) is provided with an air outlet hole (13), and the fan (20) is arranged in the air outlet hole (13) and is opposite to the cooling air duct (30).

11. The energy storage device according to claim 10, wherein a wire passing groove (22) is formed in the frame of the fan (20), a wire passing hole (12) opposite to the wire passing groove (22) is formed in the box (10), and a connecting wire of the fan (20) sequentially penetrates through the wire passing groove (22) and the wire passing hole (12) to extend into the box (10).

12. An energy storage system, comprising: the energy storage device (100) of at least one of claims 1 to 11.