CN218526610U

CN218526610U - Energy storage device

Info

Publication number: CN218526610U
Application number: CN202222316633.6U
Authority: CN
Inventors: 罗岚; 靳保吕; 林伟逢; 凌旭
Original assignee: Zhangzhou Kehua Technology Co Ltd; Xiamen Kehua Digital Energy Tech Co Ltd
Current assignee: Xiamen Kehua Digital Energy Tech Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-02-24
Anticipated expiration: 2032-08-31

Abstract

The utility model provides an energy storage device, which comprises an inversion module, a wall hanging structure, a battery module and a fixed structure; the rear side of the inversion module is provided with an assembly connection position and a maintenance connection position from far and near directions along the butt joint direction with the battery; the wall hanging structure is fixed on the vertical surface and is detachably connected with the assembling connection position or the maintaining connection position; the battery module is in up-down butt joint with the inversion module, and the battery module is in conductive connection with the inversion module through a lead-out wire; the battery module is fixed on a vertical surface or the ground through a fixing structure. The utility model discloses can accomplish battery module's independent dismantlement under the condition of not following the facade and take out, realize that the battery maintains the effect of not tearing open the machine, effectively improve the complicated problem of battery maintenance operation.

Description

Energy storage device

Technical Field

The utility model belongs to the technical field of electric power equipment, concretely relates to energy storage device.

Background

With the development of society, the power supply in power generation has been developed from a single power supply to an energy storage supply, and the energy storage supply technology needs to rely on a system capable of storing and supplying power, which facilitates the management of power consumers to a great extent, and can more fully play the role of power equipment, thereby reducing the power supply cost. The core of the system is an energy storage device which is composed of a battery and an inverter, wherein the battery can store electric energy, and the inverter is used as a bridge between the battery and electrical equipment, converts direct current output by the battery into alternating current and is an essential link when the stored electric energy is used.

Because the battery is easy to damage, the battery and the inverter need to be dismounted simultaneously and then maintained after the existing energy storage device is used for a period of time, the dismounting process is complicated, the maintenance operation efficiency is low, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an energy storage device aims at solving the energy storage device that exists among the prior art and needs whole dismantlement just can carry out the battery maintenance, leads to the problem of maintenance operation complicacy.

In order to achieve the above object, the utility model adopts the following technical scheme:

provided is an energy storage device including:

the battery module is in up-and-down butt joint with the inversion module, and the battery module is in conductive connection with the inversion module through a lead-out wire;

the rear side of the inversion module is provided with an assembly connection position and a maintenance connection position from far to near in sequence along the butt joint direction of the battery;

the wall hanging structure is fixed on the vertical surface and is detachably connected with the assembling connection position or the maintaining connection position;

and (c) a second step of,

and the battery module is fixed on the vertical surface or the ground through the fixing structure.

In one possible implementation, the outlet of the inverter module is defined as a first outlet, and the outlet of the battery module is defined as a second outlet;

the first outgoing line is led out from the left side and/or the right side of the inverter module, the second outgoing line is led out from the left side and/or the right side of the battery module, and the first outgoing line and the second outgoing line are in conductive connection through a detachable interface structure;

or the first outgoing line is led out from the left side and/or the right side of the inverter module, and the first outgoing line is in conductive connection with the battery module through a detachable interface structure;

or the second outgoing line is led out from the left side and/or the right side of the battery module, and the second outgoing line is in conductive connection with the inverter module through a detachable interface structure.

In a possible implementation manner, the left side and/or the right side of the inverter module and the left side and/or the right side of the battery module are detachably connected with a decorative plate respectively, and the decorative plate can shield the first outgoing line, the second outgoing line and the interface structure.

In a possible implementation manner, the decorative plate is provided with heat dissipation holes.

In one possible implementation, the wall hanging structure includes:

the main hanging rack is fixed on the vertical surface; and

the hanging plate is arranged on the front side of the main hanging rack;

the rear side of contravariant module is formed with a plurality of connecting plates that extend backward, set up on the connecting plate from along hanging mouthful and maintenance hanging mouthful with the assembly that the battery butt joint direction distributes from far away and nearly, the assembly hang mouthful with maintenance hanging mouthful homoenergetic with the link plate articulates the adaptation, the assembly hangs mouthful formation the assembly connection position, maintenance hanging mouthful formation the maintenance connection position.

In a possible implementation manner, limiting plates extending forwards are respectively formed on the left side and the right side of the main hanger, and a limiting space for accommodating a plurality of connecting plates is formed between the two limiting plates which are arranged oppositely.

In a possible implementation manner, the limiting plate and the adjacent connecting plate are locked by a fastener.

In a possible implementation manner, the wall-mounted structure further comprises an auxiliary limiting frame, the auxiliary limiting frame is located below the main hanging frame and can be fixed on the vertical face, and the auxiliary limiting frame is abutted against the rear side face of the inversion module to limit the inversion module to swing backwards.

In a possible implementation manner, a reinforcing rib is formed at the rear part of the connecting plate, and the assembling connection position and the maintaining connection position are both located on the reinforcing rib.

In a possible implementation manner, the energy storage device further includes an auxiliary docking structure, the auxiliary docking structure includes a positioning protrusion disposed on one of the inverter module and the battery module, and further includes a positioning groove disposed on the other of the inverter module and the battery module, and the positioning protrusion and the positioning groove are in vertical insertion fit.

Compared with the prior art, according to the scheme shown in the embodiment of the application, when the wall-mounted structure is connected with the assembly connecting position, the inverter module is in a state of being normally butted and assembled with the battery module; if the battery is required to be maintained, the inversion module is moved to separate the wall-mounted structure from the assembly connection position and is connected with the maintenance connection position, the inversion module and the battery module are in a state of being disconnected from each other up and down and move upwards or downwards for a certain distance relative to the battery module, a maintenance space is formed between the inversion module and the battery module, the battery module can be detached and taken out independently under the condition that the inversion module is not detached from a vertical surface, the effect that the battery is maintained without detaching the battery is achieved, and the problem that the battery maintenance operation is complex is effectively solved.

Drawings

Fig. 1 is a first state diagram of an energy storage device according to an embodiment of the present invention, in which an inverter module is in a state of being vertically butted with a battery module;

FIG. 2 is a rear perspective view of FIG. 1;

FIG. 3 is an assembled view of the heat sink and the wall hanging structure of FIG. 2;

fig. 4 is a perspective view of a wall-mounted structure adopted in the embodiment of the present invention;

FIG. 5 is a distribution diagram of an assembly hanging port, a maintenance hanging port and a first fixing hole adopted by the embodiment of the present invention;

fig. 6 is a state diagram of the energy storage device according to the embodiment of the present invention, in which the inverter module is in a state of being separated from the battery module;

FIG. 7 is another perspective view of the energy storage device of FIG. 6;

fig. 8 is a rear perspective view of fig. 6.

Description of the reference numerals:

100. an inversion module; 10a, assembling a connecting position; 10b, maintaining a connection bit; 110. a connecting plate; 111. a second fixing hole; 112. reinforcing the convex ribs; 120. assembling a hanging port; 130. maintaining the hanging port; 140. an inverter; 150. a heat sink;

200. a wall hanging structure; 210. a main hanger; 211. a limiting plate; 212. a first fixing hole; 213. limiting and flanging; 220. hanging the plate; 230. an auxiliary limiting frame;

300. a battery module; 310. a battery;

400. a fixed structure;

500. a decorative plate; 510. a wire passing opening; 520. heat dissipation holes;

600. an auxiliary docking structure; 610. positioning the projection; 620. a positioning groove.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the claims, the description and the drawings of the present application, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used to distinguish between different objects and are not used to describe a particular sequence.

In the claims, the description and the drawings of the present application, the term "front" refers to a direction departing from a vertical plane, and vice versa, the remaining directional terms are, unless otherwise specifically limited, based on the directions and positional relationships shown in the drawings as indicated by the terms "upper", "lower", "top", "bottom", "high", "low", "left", "right", "center", "transverse", "longitudinal", "vertical", "clockwise", "counterclockwise", and the like, and are only for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the indicated device or element must have a specific direction or be constructed and operated in a specific direction, so it is not to be construed as limiting the specific scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Referring to fig. 1 to 8, an energy storage device according to the present invention will now be described. The energy storage device comprises an inverter module 100, a wall-mounted structure 200, a battery module 300 and a fixing structure 400; the rear side of the inverter module 100 is sequentially formed with an assembly connection site 10a and a maintenance connection site 10b in the top-down direction; the wall hanging structure 200 is fixed on the vertical surface and detachably connected with the assembling connection position 10a or the maintenance connection position 10b; the battery module 300 is positioned below the inverter module 100 and is vertically butted with the inverter module 100, and the battery module 300 is electrically connected with the inverter module 100 through a leading-out wire; the battery module 300 is fixed to the facade by the fixing structure 400. In other embodiments, the battery module 300 may be placed on the ground or fixed to the ground by a fixing structure.

The vertical surface in this embodiment may be a vertically arranged vertical surface such as a wall surface of a wall body, a side wall surface of a cabinet, or the like, and the vertical surface may be a straight surface or a curved surface, so that the wall-mounted structure 200 and the fixed structure 400 can adapt to the form of the vertical surface and can be assembled, which is not limited herein.

The battery module 300 of the present embodiment includes a plurality of batteries 310 distributed in a certain manner, and each of the batteries 310 is correspondingly connected with a fixing structure 400. The present embodiment exemplarily shows that the arrangement of the plurality of cells 310 is performed in a vertically stacked manner, and the fixing structures 400 are provided at both left and right sides of each cell 310.

The fixing structure 400 in this embodiment realizes the relative fixing of the battery module 300 and the vertical surface, and can be detached from the vertical surface or the battery module 300, so as to meet the requirement of detaching and maintaining the battery module 300. The fixing structure 400 of the present embodiment is shown as an example of a structure having a mounting hole, and the detachable connection to the facade can be achieved by a threaded connector (e.g., a screw).

In this embodiment, the number of the assembly connecting positions 10a and the number of the maintenance connecting positions 10b are not limited uniquely, and the assembly and maintenance requirements can be met.

Compared with the prior art, the energy storage device provided by the embodiment utilizes the characteristic that the inversion module 100 is light in weight, the inversion module 100 is arranged above the battery module 300, and when the wall-mounted structure 200 is connected with the assembly connecting position 10a, the inversion module 100 is in a state of being normally butted and assembled with the battery module 200; if the battery maintenance is needed, the inverter module 100 is moved to separate the wall-mounted structure 200 from the assembly connection position 10a and connect the wall-mounted structure with the maintenance connection position 10b, at this time, the inverter module 100 and the battery module 300 are not in a vertical butt joint state and move upwards for a certain distance relative to the battery module 300, a maintenance space is formed between the inverter module 100 and the battery module 300, the battery module 300 can be detached and taken out independently without detaching the inverter module 100 from a vertical surface, the effect of battery maintenance without detaching a machine is achieved, and the problem of complicated battery maintenance operation is effectively solved.

In some embodiments, the outlet defining the inverter module 100 is a first outlet and the outlet defining the battery module 300 is a second outlet. The connection between the inverter module 100 and the battery module 300 is as follows:

1) The first outlet is led out from the left and/or right side of the inverter module 100, the second outlet is led out from the left and/or right side of the battery module 300, and the first outlet and the second outlet are conductively connected through a detachable interface structure. The input end of the inverter module 100 has two first outgoing lines, the second outgoing line has two outgoing lines respectively connected to the positive electrode and the negative electrode of the battery module 300, and the two second outgoing lines are respectively connected to the corresponding first outgoing lines through the interface structure.

2) The first outlet is led out from the left side and/or the right side of the inverter module 100, and the first outlet is conductively connected to the battery module 300 through a detachable interface structure.

3) The second outlet is led out from the left and/or right side of the battery module 300, and the second outlet is electrically connected to the inverter module 100 through a detachable interface structure.

The conductive connection between the inverter module 100 and the battery module 300 is realized through the interface structure, so that the rapid plugging and unplugging can be realized, the conductive connection between the battery module 300 and the inverter module 100 can be rapidly disconnected before the battery module 300 is completely disassembled, and the improvement of the maintenance efficiency is facilitated. The interface structure in this embodiment may be obtained in a commercially available manner, for example, an H4 UTX dc terminal connector, as an example of a case where the first outlet and the second outlet exist at the same time, a male terminal of the H4 UTX dc terminal connector is connected to one of the first outlet and the second outlet, and a female terminal is provided on the other of the first outlet and the second outlet. In specific implementation, for the convenience of wire management, the inverter module 100 and the battery module 300 are conductively connected at the same side.

It should be noted that, the inverter module 100 is provided with a connection line for the modules such as the photovoltaic panel and the load in addition to the first outgoing line, and the connection line needs to be reserved with a sufficient length, so as to avoid a problem that the connection line is pulled in the process of switching and moving the inverter module 100 between the assembly state and the maintenance state, which leads to damage of a conductive connection path for the modules such as the photovoltaic panel and the load. Similarly, the first outgoing line also needs to be reserved with a sufficient length, so that the first outgoing line is prevented from being pulled in the process of switching and moving the inverter module 100 between the assembly state and the maintenance state, and the first outgoing line, the second outgoing line and the interface structure are prevented from being damaged due to pulling.

In some embodiments, the left side and/or the right side of the inverter module 100, and the left side and/or the right side of the battery module 300 are detachably connected with the decorative plate 500 respectively, the decorative plate 500 can shield the first outgoing line, the second outgoing line and the interface structure, as shown in fig. 1, fig. 2, fig. 6 to fig. 8, through shielding the first outgoing line, the second outgoing line and the interface structure, the messy visual perception caused by the outgoing line can be avoided, the protective effect is also achieved on the outgoing line and the interface structure, the damage caused by the collision of a key wiring structure is avoided, and the use reliability is ensured.

On the basis of the above embodiment, in order to facilitate installation, space for avoiding electric devices such as lead wire connectors is formed on the left and right sides of the inverter module 100 and the battery module 300, and the decorative plate 500 has a cover structure. According to this embodiment, the lower side of the decorative plate 500 provided on the inverter module 100 and the upper side of the decorative plate 500 provided on the battery module 300 are provided with the wire through openings 510, respectively, as shown in fig. 6 to 8. Taking the situation that the first outgoing line and the second outgoing line exist simultaneously as an example, in the assembled state, the interface structure may be located inside the decorative board 500 of the inverter module 100, and after the maintenance connection position 10b of the inverter module 100 is connected with the wall hanging structure 200, the interface structure passes through the wire passing opening 510 formed on the decorative board 500 downwards under the action of gravity, and then the interface structure is exposed in the maintenance state, so as to facilitate the separation of the male head and the female head in the interface structure. If the first outlet and the second outlet can only be selected, in the assembled state, the plugging area of the interface structure is approximately aligned with the butt joint position of the upper wire passing opening 510 and the lower wire passing opening 510, and after the inverter module 100 is moved upwards, the plugging area of the interface structure is directly exposed out of the decorative plate.

In some embodiments, the decorative panel 500 may be configured as shown in fig. 1, 2, 6-8. Referring to fig. 1, 2, and 6 to 8, the decorative plate 500 is provided with heat dissipation holes 520 to maintain reliability of heat dissipation at the sides of the inverter module 100 and the battery module 300. The specific distribution mode of the heat dissipation holes 520 is set according to the actual heat dissipation requirement, and the heat dissipation holes 520 are formed in at least the main board surface of the decorative board 500 (and the side board surface of the decorative board 500 away from the inverter module 100 or the battery module 300); if the inverter module 100 or the battery module 300 generates heat seriously, the front side plate surface and/or the rear side plate surface of the decorative plate 500, which is a cover body, may also be provided with heat dissipation holes 520 to enhance the air circulation. The heat dissipation holes 520 may have holes such as circular holes, rectangular holes, polygonal holes, etc., and the distribution mode may be rectangular array, linear array, circular array, irregular distribution, etc., without being limited thereto.

In some embodiments, the wall-hanging structure 200 may be configured as shown in fig. 2 to 4 and 8. Referring to fig. 4 to 8, in order to realize the hanging of the wall-hanging structure 200 and the inverter module 100, the wall-hanging structure 200 includes a main hanging rack 210 and a hanging plate 220; the main hanging rack 210 is fixed on the vertical surface, and the hanging plate 220 is arranged on the front side of the main hanging rack 210. Correspondingly, the rear side of the inverter module 100 is provided with a plurality of connecting plates 110 extending backwards, the connecting plates 110 are provided with an assembly hanging port 120 and a maintenance hanging port 130 which are sequentially distributed from top to bottom, the assembly hanging port 120 and the maintenance hanging port 130 can be hung on the hanging plate 220 for adaptation, the assembly hanging port 120 forms an assembly connecting position 10a, and the maintenance hanging port 130 forms a maintenance connecting position 10b. It should be noted that, in order to ensure the reliability of the hanging of the inverter module 100, the connection plates 110 need to be symmetrically distributed on both sides of the inverter module 100, so as to keep the force uniformly applied after hanging. The exemplary two link plates 220 that show of this embodiment to locate link plate 220 the left and right sides on main stores pylon 210 upper portion, can form between two link plates 220 and keep away a space, avoid taking place to interfere with contravariant module 100, also can reduce the holistic thickness of hanging structure 200 in the fore-and-aft direction simultaneously, make the whole compactness of hanging structure 200 stronger. The main hanger 210 in this embodiment is provided with a mounting hole, and can be fixed to the vertical surface by a threaded connector such as a bolt.

On the basis of the wall-hung structure 200, in order to enhance the strength of the hanging position of the connecting plate 110 and avoid deformation of the connecting plate 110 after long-time hanging, a reinforcing convex rib 112 is formed at the rear part of the connecting plate 110, and the assembly connecting position 10a and the maintenance connecting position 10b are both located on the reinforcing convex rib 112.

On the basis of the wall-hung structure 200, the left and right sides of the main hanger 210 are respectively formed with a limiting plate 211 extending forward, and a limiting space for accommodating the plurality of connecting plates 110 is formed between two opposite limiting plates 211, as shown in fig. 4. By accommodating the connecting plates 110 at the same time, the limiting space can limit the inversion module 100 at the left and right sides, so that the inversion module 100 is prevented from shaking left and right after being hung; furthermore, a trumpet-shaped guide space can be formed at the opening of the limit space, so that the connecting plate 110 can be more easily guided into the limit space.

On the basis of the limiting plate 211, the limiting plate 211 and the adjacent connecting plate 110 are locked by a fastener, so as to completely fix the inverter module 100. According to the embodiment, the limiting plate 211 is provided with the vertically arranged and waist-shaped first fixing hole 212, the connecting plate 110 is provided with the plurality of vertically distributed second fixing holes 111, and the first fixing hole 212 corresponds to one of the second fixing holes 111 and is locked in position through a fastener (a threaded connector such as a bolt, or a pin connector such as a fixing pin).

In some embodiments, the upper and lower edges of the main hanger 210 further extend forward to form a limiting flange 213, and the limiting flange 213 contacts with the rear side of the inverter module 100 to prevent the lower portion of the inverter module 100 from swinging backward and maintain the stability of the hanging.

In some embodiments, in order to further prevent the inverter module 100 from swaying, so that the hooked inverter module 100 is more stable, the wall-mounted structure 200 further includes an auxiliary limiting frame 230, the auxiliary limiting frame 230 is located below the main hanging frame 210 and can be fixed on the vertical surface, and the auxiliary limiting frame 230 abuts against the rear side surface of the inverter module 100 to limit the inverter module 100 from swaying backwards.

In specific implementation, the inverter module 100 includes an inverter 140 and a heat sink 150, the heat sink 150 is disposed at the rear side of the inverter 140, and the fins of the heat sink 140 form the connecting plate 110, as shown in fig. 2, 3, 5 and 8.

Alternatively, the inverter module 100 includes an inverter 140, a heat sink 150, and connection plates 110 on both left and right sides of the heat sink 150, and the connection plates 110 are provided independently of the heat sink 150 and are not shown in the drawings.

In some embodiments, the energy storage device further includes an auxiliary docking structure 600, the auxiliary docking structure 600 includes a positioning protrusion 610 disposed on one of the inverter module 100 and the battery module 300, and further includes a positioning groove 620 disposed on the other one of the inverter module 100 and the battery module 300, and the positioning protrusion 610 and the positioning groove 620 are vertically inserted and matched. In the process that the inverter module 100 moves downwards to be butted with the battery module 300, the positioning protrusions 610 and the positioning grooves 620 play a role in assisting in guiding and positioning, so that the inverter module 100 can be aligned with the battery module 300 up and down, and the assembly hanging opening 120 on the inverter module 100 can be accurately hung on the wall hanging structure 200. In order to facilitate the alignment of the positioning protrusion 610 with the positioning recess 620, the positioning protrusion 610 is tapered, and the positioning recess 620 is correspondingly configured as a tapered groove.

In the present embodiment, the positioning groove 620 is exemplarily disposed on the lower surface of the inverter 140, and the positioning protrusion 610 is disposed on the upper surface of the battery module 300, meanwhile, the positioning groove 620 is diagonally disposed on the lower surface of the inverter 140, and the positioning protrusion 610 is diagonally disposed on the upper surface of the battery module 300, so as to perform a foolproof function. It should be understood that the distribution of the positioning grooves 620 and the positioning protrusions 610 is not limited to the above-mentioned examples, and the positioning requirement can be satisfied.

In other embodiments, the rear side of the inverter module 100 is sequentially formed with an assembly connection site 10a and a maintenance connection site 10b in a direction from bottom to top; the battery module 300 is located above the inverter module 100 and is vertically butted with the inverter module 100, and the battery module 300 is fixed on a vertical surface by the fixing structure 400. The difference from the above is that the inverter module 100 is disposed below the battery module 300, the assembly connection position 10a is located below the maintenance position 10b, and in a normal situation, the wall-mounted structure 200 is detachably connected to the assembly connection position 10a located below, and at this time, the inverter module 100 is in a state of being normally butt-assembled with the battery module 200; if the battery maintenance is needed, the inverter module 100 is moved to separate the wall-mounted structure 200 from the assembly connection position 10a and connect the wall-mounted structure with the maintenance connection position 10b, at this time, the inverter module 100 and the battery module 300 are not in a vertical butt joint state and move downwards for a certain distance relative to the battery module 300, a maintenance space is formed between the inverter module 100 and the battery module 300, the battery module 300 can be detached and taken out independently without detaching the inverter module 100 from a vertical surface, the effect of battery maintenance without detaching a machine is achieved, and the problem of complicated battery maintenance operation is effectively solved.

In other embodiments, the inverter module 100 and the battery module 300 may be disposed in a horizontal butt joint manner, which is similar to the above embodiments and will not be described in detail herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An energy storage device, comprising:

the battery module is in up-and-down butt joint with the inversion module, and the battery module is in conductive connection with the inversion module through a lead-out wire

and the number of the first and second groups,

2. The energy storage device according to claim 1, wherein the outlet defining the inverter module is a first outlet, and the outlet defining the battery module is a second outlet;

3. The energy storage device according to claim 2, wherein a decorative plate is detachably attached to each of the left and/or right sides of the inverter module and the left and/or right sides of the battery module, and the decorative plate can cover the first outlet, the second outlet, and the interface structure.

4. The energy storage device as claimed in claim 3, wherein the heat dissipation hole is formed in the decoration plate.

5. The energy storage device of claim 1, wherein said wall hanging structure comprises:

the main hanging rack is fixed on the vertical surface; and

the hanging plate is arranged on the front side of the main hanging rack;

the rear side of contravariant module is formed with a plurality of connecting plates that extend backward, and is a plurality of the connecting plate distributes along left right direction, set up on the connecting plate along with battery butt joint direction from the assembly that reaches nearly distribution string mouthful and maintenance string mouthful, the assembly hang mouthful with maintenance string mouthful homoenergetic with the link plate articulates the adaptation, the assembly hangs mouthful formation the assembly connection position, maintenance string mouthful forms the maintenance connection position.

6. The energy storage device as claimed in claim 5, wherein the left and right sides of the main hanger are respectively formed with a limiting plate extending forwards, and a limiting space for accommodating a plurality of connecting plates is formed between two opposite limiting plates.

7. The energy storage device as claimed in claim 6, wherein the retainer plate and the adjacent connecting plate are locked by a fastener.

8. The energy storage device according to claim 5, wherein the wall-mounted structure further comprises an auxiliary limiting frame, the auxiliary limiting frame is located below the main hanging frame and can be fixed on the vertical surface, and the auxiliary limiting frame abuts against the rear side surface of the inverter module to limit the inverter module to swing backwards.

9. The energy storage device according to claim 5, wherein a reinforcement rib is formed at a rear portion of the connection plate, and the fitting connection site and the maintenance connection site are located at the reinforcement rib.

10. The energy storage device according to claim 1, further comprising an auxiliary docking structure, wherein the auxiliary docking structure comprises a positioning protrusion disposed on one of the inverter module and the battery module, and a positioning groove disposed on the other of the inverter module and the battery module, and the positioning protrusion is vertically inserted into and engaged with the positioning groove.