CN218414693U

CN218414693U - Energy storage device

Info

Publication number: CN218414693U
Application number: CN202222183671.9U
Authority: CN
Inventors: 黄立炫; 董庆文
Original assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2023-01-31
Anticipated expiration: 2032-08-17

Abstract

The utility model discloses an energy storage equipment. The energy storage device includes: the side wall of each installation space is provided with a guide rail, and the guide rail is provided with a first plug connector; a plurality of battery module, every battery module install in a corresponding installation space, and by the guide rail supports, the battery module includes the box, the box is equipped with the second plug connector, the second plug connector with first plug connector is mutually supported and is connected in order to fix the position of battery module in vertical direction. Above-mentioned energy storage equipment, through the second plug connector with first plug connector cooperation is connected and is fixed battery module avoids or reduces battery module and rocks about vertical direction in the position of vertical direction, and then guarantees battery module's life.

Description

Energy storage device

Technical Field

The utility model relates to an energy storage technical field, in particular to energy storage equipment.

Background

Because the lithium ion battery has the advantages of large energy density, long service life, environmental protection and the like, the lithium ion battery becomes a main energy storage device of energy storage equipment. In the wide application of lithium ion batteries, a plurality of battery modules are connected in series and in parallel to form a high-voltage or (and) high-energy battery cabinet (also called an energy storage battery cabinet, energy storage equipment, or a cluster frame) for use.

The existing lithium battery energy storage equipment adopts a drawer type energy storage battery cluster frame. Each battery module is mounted on the cluster frame in the form of a drawer. In order to prevent the reduction of the service life of the battery module sheet metal part caused by the shaking of the battery module during transportation of the cluster, the battery module is necessary to be limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides an energy storage equipment.

The utility model discloses embodiment's an energy storage equipment includes:

the side wall of each installation space is provided with a guide rail, and the guide rail is provided with a first plug connector;

a plurality of battery module, every battery module install in a corresponding installation space, and by the guide rail supports, the battery module includes the box, the box is equipped with the second plug connector, the second plug connector with first plug connector is mutually supported and is connected in order to fix the position of battery module in vertical direction.

Above-mentioned energy storage equipment, through the second plug connector with first plug connector cooperation is connected and is fixed battery module is in the position of vertical direction, avoids or reduces battery module and rocks from top to bottom in vertical direction, and then guarantees battery module's life.

In some embodiments, the box body comprises a back plate, the second connector is arranged on the back plate, and the first connector is arranged at the rear end of the guide rail.

In some embodiments, the first connector defines a first insertion hole, and the second connector includes a first insertion portion partially inserted into the first insertion hole.

In some embodiments, the first insertion hole is formed with a first insertion port at an insertion side of the first plug, and a peripheral wall edge of the first insertion port is formed with a first guide slope configured to guide the first insertion portion into the first insertion hole.

In some embodiments, the second connector is fixedly or removably connected to the housing.

In some embodiments, the second connector comprises a second receptacle opening in the case, and the first connector comprises a second insertion portion partially inserted into the second receptacle.

In some embodiments, the second insertion hole is formed with a second insertion opening at an outer surface of the case, and a peripheral wall edge of the second insertion opening is formed with a second guide slope configured to guide the second insertion portion into the second insertion hole.

In some embodiments, the second insertion portion is strip-shaped, and the shape of the second insertion hole is adapted to the shape of the second insertion portion.

In some embodiments, the first connector is connected to the rail as a unitary structure.

In some embodiments, the housing includes a back plate, and the second connector is a portion of the back plate.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an energy storage device according to an embodiment of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a rear view of an energy storage device of an embodiment of the present invention;

fig. 4 is a schematic perspective view of a battery module according to an embodiment of the present invention;

fig. 5 is another schematic perspective view of the battery module according to the embodiment of the present invention;

fig. 6 is a rear view of the battery module according to the embodiment of the present invention;

FIG. 7 is a schematic view of the connection of the first and second connectors according to the embodiment of the present invention;

fig. 8 is another schematic perspective view of an energy storage device according to an embodiment of the present invention;

FIG. 9 is an enlarged view at B in FIG. 8;

FIG. 10 is an enlarged view at C of FIG. 9;

fig. 11 is another rear view of an energy storage device in accordance with an embodiment of the present invention.

Description of the reference numerals:

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the embodiments of the present invention.

In embodiments of the present invention, the first feature "on" or "under" the second feature may include 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 through another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples to implement different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Embodiments of the present invention may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, an energy storage device 100 according to an embodiment of the present invention includes a cluster frame 12 and a plurality of battery modules 14. The tuft block 12 is provided with a plurality of mounting spaces 16, and a side wall of each mounting space 16 is provided with a rail 18, and the rail 18 is provided with a first plug connector 20. Each battery module 14 is mounted in a corresponding one of the mounting spaces 16 and supported by the guide rail 18, and the battery module 14 includes a case 22, the case 22 being provided with a second connector 24, the second connector 24 being cooperatively connected with the first connector 20 to fix the position of the battery module 14 in the vertical direction.

According to the energy storage device 100, the second connector 24 is connected with the first connector 20 in a matched manner to fix the position of the battery module 14 in the vertical direction, so that the battery module 14 is prevented or reduced from shaking up and down in the vertical direction, and the service life of the battery module 14 is further ensured.

Specifically, in one embodiment, the energy storage device 100 may be an energy storage container that further includes a housing (not shown) within which the trusses 12 are disposed, and within which one or more of the trusses 12 may be disposed. A plurality of the cluster frames 12 are arranged in an array to increase the energy storage capacity of the energy storage device 100. Still include air conditioning system and fire extinguishing system in the casing, air conditioning system can guarantee that battery module 14 work is in normal ambient temperature scope, and fire extinguishing system can restrain the emergence of condition of a fire to and put out a fire when the condition of a fire appears in the casing, in order to prevent that the fire potential from stretching.

In one embodiment, energy storage device 100 may be a household energy storage cabinet, which may be located indoors or outdoors, and when located outdoors, care should be taken to protect the household energy storage cabinet from water and dust.

Referring to fig. 4 and 5, each battery module 14 includes a box 22 and a plurality of battery cells located in the box 22, and the battery cells are connected in series, in parallel, or in series and parallel. The box body 22 is formed by connecting a front plate, a rear plate 26, a left plate 28, a right plate, an upper plate 30 and a lower plate.

The case 22 may protect the cells. An exhaust fan is further arranged in the box body 22, air inlet holes 32 and air outlet holes can be formed in side plates of the box body 22, when the exhaust fan works, cold air outside the box body 22 can be sucked into the box body 22 to cool the battery cells, and hot air after heat exchange with the battery cells is discharged out of the box body 22 through the air outlet holes.

In the embodiment shown in fig. 2, 4 and 5, the second connector 24 is disposed on the rear plate 26 of the housing 22, and the first connector 20 is disposed at the rear end of the guide rail 18, so that the first connector 20 and the second connector 24 can be conveniently connected. Specifically, the battery module 14 can be inserted into the installation space 16 from the front end of the installation space 16 when the battery module 14 is installed, and the first connector 20 and the second connector 24 are connected with each other in a matching manner when the battery module 14 is installed in place.

It is understood that, in other embodiments, the second connector 24 may be disposed on at least one of the back plate 26, the left plate 28, and the right plate of the casing 22, or other positions, the first connector 20 is disposed on the corresponding position on the guide rail 18, so as to ensure that the battery module 14 is installed in place, and the first connector 20 and the second connector 24 can be cooperatively connected with each other, which is not limited herein.

In some embodiments, the first connector 20 defines a first insertion hole 34, and the second connector 24 includes a first insertion portion 36, wherein the first insertion portion 36 is partially inserted into the first insertion hole 34. In this way, the fixation of the battery module 14 in the vertical direction can be achieved.

Specifically, the second plug 24 further includes a first connection portion 38, and the first connection portion 38 connects the first insertion portion 36 and the rear plate 26 of the case 22. In the illustrated embodiment, the first connecting portion 38 and the first insertion portion 36 are each plate-shaped and are connected perpendicularly thereto. The perpendicular connection between the first connecting portion 38 and the first insertion portion 36 may be a right angle, or the deviation between the right angle and the included angle between the first connecting portion 38 and the first insertion portion 36 may be within a predetermined range, or within an error range.

Referring to fig. 8 and 11, two opposite side walls of each installation space 16 are respectively provided with a guide rail 18. The guide rail 18 includes a cross plate 40 and a riser 42, the riser 42 being weldable to the tuft block 12. The two cross plates 40 of the two guide rails 18 support the bottom left and right sides of the battery module 14 in the vertically upward direction. The distance between the two risers 42 may be the width of the mounting space 16, the width of the mounting space 16 being slightly greater than the width of the case 22 to facilitate insertion of the battery module 14 into the mounting space 16. The first plug 20 is provided at the rear end of the riser 42 and extends in a direction perpendicular to the riser 42, and the first plug 20 is opposed to the rear plate 26 of the casing 22 so that the first insertion portion 36 is inserted into the first insertion hole 34.

First receptacle 34 is elongated and, when tuft frame 12 is placed for normal use, first receptacle 34 extends in a horizontal direction. The shape of the first insertion hole 34 is adapted to the shape of the first insertion portion 36. The first insertion portion 36 and the first insertion hole 34 may be tightly fitted, that is, the first insertion portion 36 is tightly fitted between 360 degrees in the circumferential direction and the hole wall of the first insertion hole 34, so that the battery module 14 has almost no sloshing space in the vertical direction (including up and down). Further, the close fit between the first insertion portion 36 and the first insertion hole 34 also allows the battery module 14 to have a space with little play in the horizontal direction (including front, rear, left, and right).

The track 18 may be a unitary structure, i.e., the cross plate 40 and the riser 42 are connected as a unitary structure. Thus, the guide rail 18 has high structural strength, is not easy to deform, and has a good supporting effect on the battery module 14.

In the embodiment shown in fig. 2, the first insertion hole 34 is a through hole penetrating the front and rear surfaces of the first plug 20, and the first insertion portion 36 penetrates the first insertion hole 34. It is understood that in other embodiments, the first insertion hole 34 may be a blind hole, i.e., the first insertion hole 34 extends through the front surface of the first plug 20 but does not extend through the rear surface of the first plug 20.

In some embodiments, referring to fig. 7, the first insertion hole 34 is formed with a first insertion opening 44 at the insertion side of the first plug 20, a peripheral wall edge of the first insertion opening 44 is formed with a first guiding inclined surface 46, and the first guiding inclined surface 46 is configured to guide the first insertion portion 36 into the first insertion hole 34. Thus, the first insertion part 36 is easily inserted into the first insertion hole 34, and the installation efficiency of the battery module 14 is improved.

Specifically, in the embodiment shown in fig. 7, the first insertion opening 44 is square, four first guiding inclined surfaces 46 are formed on the edge of the surrounding wall of the first insertion opening 44, and are respectively located in four directions, namely, up, down, left and right, and the first guiding inclined surfaces 46 are inclined in the direction from the outside to the inside of the first insertion hole 34, so that the opening size of the first insertion opening 44 near the outside of the first insertion hole 34 is large. During the insertion of the second plug 24, the first insertion portion 36 abuts against the first guiding slant 46 and is guided into the first insertion hole 34 by the first guiding slant 46. Since the opening size of the first insertion port 44 is large near the outside of the first insertion hole 34, the first insertion portion 36 is easily inserted into the first insertion hole 34.

In some embodiments, the second plug 24 is fixedly or removably connected to the housing 22. In this way, the connection mode of the second connector 24 and the box 22 can be flexibly selected according to actual needs.

Specifically, in one embodiment, the second plug 24 is disposed on a back plate 26 of the case 22.

The second connector 24 may be fixedly connected to the housing 22, the second connector 24 may be welded to the rear plate 26 of the housing 22 (as shown in fig. 4), or the second connector 24 may be integrally connected to the rear plate 26 of the housing 22.

The second connector 24 is detachably connected to the housing 22, and the second connector 24 may be connected to the rear plate 26 of the housing 22 by bolts (as shown in fig. 5 and 6), or the second connector 24 may be connected to the rear plate 26 of the housing 22 by a snap-fit method.

Regardless of the fixed connection between the second plug connector 24 and the box body 22 or the detachable connection, the second plug connector 24 is ensured to be closely connected with the box body 22, and the phenomenon of shaking of the second plug connector 24 is avoided.

In some embodiments, referring to fig. 8 and 9, the second plug 24 includes a second receptacle 48 opening in the case 22, the first plug 20 includes a second insertion portion 50, and the second insertion portion 50 is partially inserted into the second receptacle 48. In this way, the fixation of the battery module 14 in the vertical direction can be achieved.

Specifically, the first connector 20 further includes a second connecting portion 52, and the second connecting portion 52 connects the second insertion portion 50 and the rail 18. In the illustrated embodiment, the second connecting portion 52 and the second insertion portion 50 are each in the shape of a bar, and are connected perpendicularly. The perpendicular connection between the first connecting portion 52 and the second insertion portion 50 may be a right angle, or the deviation between the right angle and the included angle between the second connecting portion 52 and the second insertion portion 50 may be within a predetermined range, or within a tolerance range.

The opposite side walls of each installation space 16 are provided with a guide rail 18, respectively. The guide rail 18 includes a cross plate 40 and a riser 42, the riser 42 being weldable to the tuft block 12. The two cross plates 40 of the two guide rails 18 support the bottom left and right sides of the battery module 14 in the vertically upward direction. The distance between the two risers 42 may be the width of the mounting space 16, the width of the mounting space 16 being slightly greater than the width of the case 22 to facilitate insertion of the battery module 14 into the mounting space 16. The second connecting portions 52 are provided at the rear ends of the risers 42 and extend in a direction perpendicular to the risers 42, and the second inserting portions 50 are opposed to the rear plate 26 of the case 22 so that the second inserting portions 50 are inserted into the second insertion holes 48.

The second insert portion 50 extends in a horizontal direction when the tuft block 12 is placed in normal use. The shape of the second receptacle 48 is adapted to the shape of the second insert 50. The second insertion portion 50 and the second insertion hole 48 may be tightly fitted, that is, the second insertion portion 50 is tightly attached to the hole wall of the second insertion hole 48 in the circumferential direction 360 degrees, so that the battery module 14 has almost no shaking space in the vertical direction (including up and down). Further, the close fit between the second insertion portion 50 and the second insertion hole 48 also allows the battery module 14 to have a space with little play in the horizontal direction (including front, rear, left, and right).

In the embodiment shown in fig. 9, the second insertion hole 48 is a through hole opened in the rear plate 26 of the case 22, and the second insertion portion 50 passes through the second insertion hole 48. It will be appreciated that in other embodiments, the second receptacle 48 may be a blind hole, i.e., the second receptacle 48 extends through the outer surface of the back plate 26 of the case 22, but not through the inner surface of the back plate 26 of the case 22.

In some embodiments, referring to fig. 9 and 10, the second insertion hole 48 is formed with a second insertion opening 54 at an outer surface of the case 22, a peripheral wall edge of the second insertion opening 54 is formed with a second guide slope 56, and the second guide slope 56 is configured to guide the second insertion portion 50 into the second insertion hole 48. Thus, the second insertion portion 50 is easily inserted into the second insertion hole 48, and the installation efficiency of the battery module 14 is improved.

Specifically, in the embodiment shown in fig. 10, the second insertion opening 54 is square, four second guiding inclined surfaces 56 are formed on the edge of the surrounding wall of the second insertion opening 54, and are respectively located in four directions, namely, up, down, left, and right, and the second guiding inclined surfaces 56 are inclined in the direction from the outside to the inside of the second insertion opening 48, so that the opening size of the second insertion opening 54 near the outside of the second insertion opening 48 is large. During the insertion of the first connector 20, the second insertion portion 50 abuts against the second guiding slant surface 56 and is guided by the second guiding slant surface 56 into the second insertion hole 48. Since the opening size of the second insertion port 54 is large near the outside of the second insertion hole 48, the second insertion portion 50 is easily inserted into the second insertion hole 48.

In some embodiments, the second insertion portion 50 is strip-shaped, and the shape of the second insertion hole 48 is adapted to the shape of the second insertion portion 50. In this manner, the insertion of the second insertion portion 50 into the second insertion hole 48 is facilitated.

Specifically, the second insertion portion 50 may have a cylindrical shape, a conical shape, a prismatic shape, or a rectangular parallelepiped shape, and the shape of the second insertion hole 48 is adapted to the shape of the second insertion portion 50, so that the battery module 14 can be fixed in the vertical direction when the second insertion portion 50 and the second insertion hole 48 are fitted to each other.

In some embodiments, the first plug 20 is connected to the rail 18 as a unitary structure. Thus, the connection strength of the first connector 20 and the rail 18 can be improved.

Specifically, in the embodiment shown in FIG. 9, the guide rail 18 includes a cross plate 40 and a riser 42, and the first plug 20 is connected to a rear end of the riser 42. The first connector 20 is connected to the guide rail 18 as a unitary structure, that is, the first connector 20 is connected to the guide rail 18 as a unitary structural member, which may be a structural member with an equal thickness or a structural member with different thicknesses. During manufacture, the metal plate may be stamped and bent to form the unitary structure, which includes the horizontal plate 40, the vertical plate 42, and the first connector 20.

In some embodiments, the second plug 24 is part of the back plate 26 of the housing 22. Therefore, the second plug connector 24 is formed without additional parts, so that the material is saved and the cost is reduced.

Specifically, in the embodiment shown in fig. 9, the second insertion hole 48 is formed in the back plate 26, the second insertion hole 48 may be a through hole or a blind hole, and a portion of the back plate 26 provided with the second insertion hole 48 may serve as the second connector 24, so that no additional component is required to form the second connector 24, which saves materials and reduces cost.

Except the second jack 48, the rear plate 26 is further provided with an air inlet hole 32, and an exhaust fan inside the battery module 14 can draw outside cold air into the battery module 14 through the air inlet hole 32 to cool the electric core inside the battery module 14.

When the rear plate 26 is manufactured, a plate can be used to form the second insertion holes 48 and the air inlet holes 32 by stamping, which is simple and efficient.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An energy storage device, comprising:

2. The energy storage device of claim 1, wherein the case includes a back plate, the second connector is provided at the back plate, and the first connector is provided at a rear end of the guide rail.

3. The energy storage device of claim 1, wherein the first connector defines a first receptacle, and wherein the second connector includes a first insertion portion partially inserted into the first receptacle.

4. The energy storage device of claim 3, wherein the first insertion hole is formed with a first insertion opening at an insertion side of the first plug connector, and a peripheral wall edge of the first insertion opening is formed with a first guide slope configured to guide the first insertion portion into the first insertion hole.

5. The energy storage device of any of claims 1-4, wherein the second connector is fixedly or removably connected to the housing.

6. The energy storage device of claim 1, wherein the second connector comprises a second receptacle opened in the case, and wherein the first connector comprises a second insertion portion partially inserted into the second receptacle.

7. The energy storage device of claim 6, wherein the second receptacle has a second insertion opening formed in an outer surface of the case, and a peripheral wall edge of the second insertion opening has a second guide slope configured to guide the second insertion portion into the second receptacle.

8. The energy storage device of claim 6 or 7, wherein the second insertion portion is strip-shaped, and the shape of the second insertion hole is adapted to the shape of the second insertion portion.

9. The energy storage device of claim 1, wherein the first connector is connected to the rail as a unitary structure.

10. The energy storage device of claim 1, wherein the case includes a back plate, and the second connector is part of the back plate.