CN115483495A

CN115483495A - Battery cluster frame structure and battery cluster

Info

Publication number: CN115483495A
Application number: CN202211261778.9A
Authority: CN
Inventors: 吴长风; 钟德良
Original assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2022-12-16

Abstract

The application discloses a battery cluster frame structure and a battery cluster, wherein the battery cluster frame structure is used for installing a battery pack and comprises a frame, a bearing piece and a friction force weakening piece, and the frame is provided with an installation space; the bearing piece is arranged in the mounting space, the bearing piece is provided with a bearing surface, the mounting space is provided with an opening and a bottom end opposite to the opening, the battery pack passes through the opening and slides along the bearing surface towards the bottom end and is inserted into the mounting space, and the bearing surface is used for bearing the battery pack; the friction force weakening piece is arranged on the bearing surface and is closer to the opening than the bottom end, and the friction force weakening piece is used for being in abutting contact with the battery pack so as to reduce the friction force between the battery pack and the bearing surface. This battery cluster frame structure not only can make the battery package labour saving and time saving insert to the battery cluster frame on or take out from the battery cluster frame, still can reduce the friction damage degree that causes battery package and battery cluster frame when inserting or taking out the battery package.

Description

Battery cluster frame structure and battery cluster

Technical Field

The application relates to the technical field of batteries, in particular to a battery cluster frame structure and a battery cluster.

Background

Lithium ion batteries are widely used due to their advantages of high specific energy, low self-discharge rate, high operating voltage, and the like, and are particularly strongly developed in the field of energy storage. The lithium ion battery energy storage system is designed in a modular mode mostly, in the lithium ion battery energy storage system, the minimum unit is an electric core, a plurality of electric cores form a battery module after being connected in series and parallel, the plurality of battery modules can be installed in a shell to form a battery pack after being connected in series and parallel, then the plurality of battery packs are sequentially arranged on a battery cluster frame to form a battery cluster after being connected in series and parallel, and finally the plurality of battery clusters are electrically connected to form the battery energy storage system.

The last carrier that will usually be provided with of battery cluster frame is at present generally inserted the battery package through manual mode to the battery cluster frame in the carrier in order to realize the installation of battery package to battery cluster frame. However, the battery pack is heavy in weight, and it is difficult for a worker to remove the battery pack from the battery cluster frame, not only when the battery pack is inserted into the battery cluster frame, but also when the battery pack needs to be repaired or replaced.

Disclosure of Invention

The application discloses battery cluster frame structure and battery cluster not only can make the laborsaving battery package labour saving and time saving insert to the battery cluster frame on or take out from the battery cluster frame, still can reduce the friction damage that causes battery package and battery cluster frame when inserting or taking out the battery package.

In order to achieve the above object, in a first aspect, the present application discloses a battery cluster frame structure for mounting a battery pack, comprising:

a frame having an installation space;

the battery pack is arranged in the mounting space, the bearing part is provided with a bearing surface, the mounting space is provided with an opening and a bottom end opposite to the opening, the battery pack penetrates through the opening and slides towards the bottom end along the bearing surface, and the bearing surface is used for bearing the battery pack;

a friction force reducer disposed on the bearing surface and closer to the opening than the bottom end, the friction force reducer configured to abut against the battery pack to reduce a friction force between the battery pack and the bearing surface.

In this embodiment, the frame has an installation space, the bearing member is disposed in the installation space, and the bearing member has a bearing surface for bearing the battery pack, so that the battery pack can be stably installed in the installation space, that is, the battery pack can be stably installed in the battery cluster frame structure, and a battery cluster is formed. And when a plurality of battery packs are installed in the frame, the plurality of battery packs can form battery clusters with different capacities in different series-parallel connection modes so as to be suitable for different scenes.

The installation space has the opening and the bottom relative with the opening, supply the battery package to pass the opening and slide towards the bottom along the bearing surface and insert and locate in the installation space, can conveniently insert the battery package to the installation space in along the direction of the directional bottom of opening, also can pull out the installation space along the direction by the directional open-ended direction of bottom with installing the battery package in the installation space, or will install the battery package in the installation space and push out the installation space along the direction by the directional bottom of opening for the operation simple and convenient of battery package is installed to in the installation space or takes out the battery package from the installation space to the battery package.

The battery cluster frame structure further comprises a friction force weakening piece, wherein the friction force weakening piece is arranged on the bearing surface and used for being abutted against the battery pack to reduce the friction force between the battery pack and the bearing surface, so that the battery pack can only be in sliding contact with the friction force weakening piece or only be in sliding contact with the friction force weakening piece and a small part of the bearing surface in the process of being inserted into the installation space or taken out of the installation space, the friction resistance of the battery pack in the process of being inserted into or taken out of the installation space can be effectively reduced, on one hand, the labor and time can be saved when the battery pack is inserted into the installation space or taken out of the installation space, and on the other hand, the friction damage caused by the friction resistance when the battery pack is inserted into the installation space or taken out of the installation space can be reduced.

The friction force weakening piece is arranged on the bearing surface and is closer to the opening than the bottom end, and is closer to the bottom end than the friction force weakening piece along the direction from the opening to the bottom end, so that when the battery pack is inserted into the installation space or taken out of the installation space, the battery pack can be contacted with the friction force weakening piece and can be inserted into the installation space or taken out of the installation space along the horizontal direction when the battery pack is just inserted into the position close to the opening of the installation space and is contacted with the friction force weakening piece, or the battery pack is taken out of the installation space, the battery pack is only in sliding contact with the friction force weakening piece close to the opening when the battery pack is inserted or taken out, the friction resistance of the battery pack during insertion or taking out can be reduced, and the battery pack is more time-saving and labor-saving when being inserted or taken out.

In a manner that may be implemented by the first aspect, the friction force reducing member is a rolling structure, the rolling structure includes a rolling member and a connecting member, the connecting member is fixedly connected to the bearing member, the rolling member is in rolling connection with the connecting member, so that the rolling member can roll at least along a direction in which the opening points to the bottom end, relative to the bearing member, and the rolling member protrudes out of the bearing surface to be used for abutting against the battery pack.

From this, through rolling member and connecting piece roll connection, so that the rolling member can roll along the direction of the directional bottom of opening at least relatively bearing the thing to the bearing, the rolling member protrusion loading face, in order to be used for with battery package butt contact, make the battery package when inserting and establishing installation to installation space, the rolling member with battery package butt contact can produce the roll along the direction of the directional bottom of opening, make battery package and rolling member can produce rolling friction, compare in battery package and protruding structure production sliding friction, can effectively reduce the frictional resistance between battery package and the frictional force weakens the piece, make the insertion of battery package more laborsaving save time.

In a possible implementation manner of the first aspect, the rolling member is a rolling ball.

Thereby, the rolling member can roll in any direction relative to the bearing member, and the process flow of mounting the rolling member on the bearing member can be simplified.

In a possible implementation manner of the first aspect, the connecting member is a fixing nut, the fixing nut is screwed to the bearing member, and the rolling ball is universally rollably disposed on the fixing nut.

Therefore, the fixing nut is connected to the bearing part through the threads, the rolling ball is arranged on the fixing nut in a universal rolling mode, the rolling ball can be detachably arranged on the bearing part, and the rolling ball is convenient to maintain and replace in time when damaged.

In a possible mode of the first aspect, a clamping portion is provided on an outer surface of the peripheral wall of the fixing nut.

Therefore, when the fixing nut is screwed or unscrewed, the clamping of a screwing tool (such as a wrench) is convenient, and the fixing nut can be screwed or unscrewed quickly.

In a possible implementation manner of the first aspect, the number of the friction force reducing members is at least two, and at least two friction force reducing members are arranged on the bearing surface at intervals along a direction in which the opening points to the bottom end.

The at least two friction force weakening pieces are arranged on the bearing surface and are closer to the opening relative to the bottom end, and the at least two friction force weakening pieces are arranged at intervals along the direction of the opening pointing to the bottom end, so that the battery pack can be supported by the at least two friction force weakening pieces when the battery pack is installed in the installation space or taken out of the installation space.

In a possible implementation manner of the first aspect, a reinforcing member is provided on the other side of the carrier facing away from the carrying surface.

Therefore, the structural strength of the bearing piece can be improved, and the bearing piece is not easy to deform when bearing the battery pack.

In a possible implementation manner of the first aspect, the reinforcing member is a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged on the carrier at intervals side by side along the direction of the bottom end, where the opening is oriented, so that the structural strength of the carrier is improved, and the weight of the battery cluster frame structure is not increased more.

In a possible implementation manner of the first aspect, the bearing component includes two bearing plates that are oppositely disposed along a horizontal direction perpendicular to a direction in which the opening points to the bottom end, the two bearing plates both extend along the direction in which the opening points to the bottom end, and an upward surface of the bearing plate forms the bearing surface.

Therefore, the battery pack can be supported on two opposite supporting plates which are arranged in the horizontal direction perpendicular to the direction of the opening pointing to the bottom end, and compared with the supporting plate which comprises a supporting plate which extends in the direction of the opening pointing to the bottom end and has a larger area in the horizontal direction perpendicular to the direction of the opening pointing to the bottom end, the weight of the supporting plate can be effectively reduced.

In a possible implementation manner of the first aspect, along a horizontal direction perpendicular to a direction in which the opening points to the bottom end, two opposite sides of the bearing plates are respectively provided with a limiting plate, and a space for accommodating the battery pack is formed between the two limiting plates.

Therefore, when the battery pack is inserted into the installation space or taken out of the installation space, the limiting plate can play a certain guiding role in inserting or taking out the battery pack so as to prevent the battery pack from sliding out of the bearing plate when being inserted or taken out.

In a possible implementation manner of the first aspect, a fixing plate is disposed on at least one of two ends of the bearing plate along a direction of the opening pointing to the bottom end, and the fixing plate is configured to be detachably and fixedly connected with the battery pack.

Therefore, after the battery pack is installed in the installation space, the battery pack can be fixed in the installation space through the fixing plate, so that the battery pack can be stably and firmly installed in the frame, and the battery pack installed in the frame is prevented from sliding off due to the fact that the battery cluster frame structure is subjected to vibration, impact and the like.

In a possible implementation manner of the first aspect, the fixing plate extends from the bearing surface to a direction away from the bearing surface. Therefore, the fixing plate can be prevented from interfering with the battery pack when the battery pack is inserted into the installation space or taken out of the installation space.

In a second aspect, the present application discloses a battery cluster comprising:

the battery cluster frame structure of any of the first aspect;

the battery pack penetrates through the opening of the battery cluster frame structure, slides towards the bottom end along the bearing surface of the bearing piece and is inserted into the installation space, and the battery pack is borne on the bearing surface and is abutted to the friction force weakening piece arranged on the bearing surface.

In this embodiment, the battery pack passes through the opening of the battery cluster frame structure and slides along the bearing surface of the bearing part towards the bottom end, and is inserted into the installation space, the battery pack is borne on the bearing surface and is in butt contact with the friction force weakening part arranged on the bearing surface, so that the battery pack can be inserted and installed into the installation space, the battery pack is in sliding contact with the friction force weakening part arranged on the bearing surface, the friction resistance between the battery pack and the bearing surface is reduced, the battery pack can be inserted in a time-saving and labor-saving manner, and meanwhile, the friction damage of the battery pack caused by the friction resistance can be reduced.

Compared with the prior art, the beneficial effect of this application lies in:

in this application, the frame has installation space, holds carrier and sets up in installation space, holds carrier and has the loading end that is used for bearing the battery package, can make the battery package can be comparatively firm install in installation space, can make the battery package install in battery cluster frame structure comparatively firmly to form the battery cluster. And when a plurality of battery packs are installed in the frame, the plurality of battery packs can form battery clusters with different capacities in different series-parallel connection modes so as to be suitable for different scenes.

The battery cluster frame structure further comprises a friction force weakening piece, the friction force weakening piece is arranged on the bearing surface and used for being abutted to the battery pack, so that the friction force between the battery pack and the bearing surface is reduced, the battery pack is inserted into the installation space or taken out of the installation space, the battery pack can be in sliding contact with the friction force weakening piece only, or is in sliding contact with the friction force weakening piece and a small part of the bearing surface only, the friction resistance of the battery pack in the insertion or taking-out process can be effectively reduced, on one hand, the labor and time can be saved when the battery pack is inserted into the installation space or taken out of the installation space, and on the other hand, the friction damage caused by the friction resistance when the battery pack is inserted into the installation space or taken out of the installation space can be reduced.

Drawings

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

Fig. 1 is a perspective view of one of the battery clusters provided in the embodiments of the present application;

FIG. 2 is a perspective view of a combination bearing member and friction reducing member according to an embodiment of the present disclosure;

FIG. 3 is an enlarged view at position A in FIG. 2;

FIG. 4 is an exploded view of a friction reducing member according to an embodiment of the present application;

FIG. 5 is a perspective view of another embodiment of a carrier and friction reducing member in combination according to the present disclosure;

FIG. 6 is an enlarged view at position B in FIG. 5;

fig. 7 is a second perspective view of a battery cluster according to an embodiment of the present application.

Description of the reference numerals:

1-a frame; 11-installation space; 12-a stringer; 13-a cross beam; 2-a carrier; 21-a carrier plate; 211-a carrying surface; 22-a limiting plate; 23-fixing the plate; 24-a reinforcement; 241-reinforcing ribs; 3-a friction reducing member; 31-a rolling member; 311-a roller ball; 32-a connector; 321-a clamping part; 33-mounting posts; 331-rolling groove; 100-a battery cluster; 110-a battery cluster frame structure; 120-battery pack.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present application will be further described with reference to the following embodiments and accompanying drawings.

Example one

The embodiment discloses a battery cluster frame structure used for installing a battery pack. Referring to fig. 1 to 3, the battery cluster frame structure 110 includes a frame 1, a carrier 2, and a friction-reducing member 3, wherein the frame 1 has a mounting space 11; the carrier 2 is disposed in the mounting space 11, the carrier 2 has a carrying surface 211, the mounting space 11 has an opening and a bottom end opposite to the opening, the battery pack 120 passes through the opening and slides toward the bottom end along the carrying surface 211, and is inserted into the mounting space 11, and the carrying surface 211 is used for carrying the battery pack 120; the friction force reducer 3 is disposed on the supporting surface 211 and closer to the opening than the bottom end, and the friction force reducer 3 is used for abutting against the battery pack 120 to reduce the friction force between the battery pack 120 and the supporting surface 211.

It should be noted that, the installation space 11 having the opening and the bottom end opposite to the opening means that, during the installation of the battery pack 120 in the installation space 11, the position in the installation space 11 where the battery pack 120 is inserted first is defined as the opening of the installation space 11, and the position in the installation space 11 opposite to the opening in the insertion direction of the battery pack 120 is defined as the bottom end of the installation space 11.

In the embodiment, the frame 1 has the mounting space 11, the carrier 2 is disposed in the mounting space 11, and the carrier 2 has the carrying surface 211 for carrying the battery pack 120, so that the battery pack 120 can be stably mounted in the mounting space 11, that is, the battery pack 120 can be stably mounted in the battery cluster frame structure 110, and the battery cluster 100 is formed. Also, when a plurality of battery packs 120 are installed in the frame 1, the plurality of battery packs 120 may form the battery cluster 100 having different capacities in different series and parallel connection manners to be suitable for different scenes.

The mounting space 11 has an opening and a bottom end opposite to the opening, the battery pack 120 is inserted into the mounting space 11 by sliding along the bearing surface 211 through the opening toward the bottom end, the battery pack 120 can be conveniently inserted into the mounting space 11 along a direction (such as a direction X shown in fig. 1 and 2) in which the opening points to the bottom end, the battery pack 120 installed in the mounting space 11 can be pulled out of the mounting space 11 along a direction in which the bottom end points to the opening, or the battery pack 120 installed in the mounting space 11 can be pushed out of the mounting space 11 along a direction in which the opening points to the bottom end, so that the operation of installing the battery pack 120 into the mounting space 11 or taking the battery pack 120 out of the mounting space 11 is simple and convenient.

In the process of inserting the battery pack 120 into the mounting space 11 along the supporting surface 211 or taking the battery pack 120 out of the mounting space 11 along the supporting surface 211, sliding friction is generated between the portion of the supporting surface 211 in contact with the battery pack 120 and the battery pack 120, which not only causes great labor and time consumption in mounting the battery pack 120 into the mounting space 11 or taking the battery pack out of the mounting space 11, but also causes friction damage to the portion of the supporting surface 211 in contact with the battery pack 120 and the portion of the battery pack 120 in contact with the supporting surface 211.

Based on this, the battery cluster frame structure 110 in this embodiment further includes the friction force weakening member 3, the friction force weakening member 3 is disposed on the supporting surface 211, and is configured to abut against the battery pack 120 to reduce the friction force between the battery pack 120 and the supporting surface 211, so that the battery pack 120 can only be in sliding contact with the friction force weakening member 3 during the process of being inserted into the installation space 11 or being taken out from the installation space 11, or only be in sliding contact with the friction force weakening member 3 and a small portion of the supporting surface 211, and the friction resistance of the battery pack 120 during the process of being inserted or taken out can be effectively reduced, on one hand, the battery pack 120 can be saved and saved during the process of being inserted into the installation space 11 or being taken out from the installation space 11, and on the other hand, the friction damage caused by the friction resistance when the battery pack 120 is inserted into the installation space 11 or being taken out from the installation space 11 can be reduced.

The friction force reducing member 3 is disposed on the bearing surface 211 and closer to the opening than the bottom end, and is disposed closer to the bottom end than the friction force reducing member 3 along a direction from the opening to the bottom end, so that when the battery pack 120 is inserted into the installation space 11 or taken out from the installation space 11, the battery pack 120 can be in contact with the friction force reducing member 3 and can be inserted into the installation space 11 or taken out from the installation space 11 along a horizontal direction when the battery pack 120 is just inserted into a position near the opening of the installation space 11 and is in contact with the friction force reducing member 3, so that the battery pack 120 is only in sliding contact with the friction force reducing member 3 close to the opening when being inserted or taken out, thereby reducing the friction resistance on the battery pack 120 during insertion or taking out, and saving time and labor for inserting or taking out the battery pack 120.

Wherein, frame 1 can include a plurality of longerons 12 that extend along vertical direction and a plurality of crossbeams 13 along horizontal extension, a plurality of longerons 12 can be along the direction parallel with the direction of pointing the bottom by the opening and with the horizontal direction array setting of the direction looks vertically by the direction of pointing the bottom by the opening, crossbeam 13 can be connected between two adjacent longerons 12, it can set up between the adjacent longeron 12 of arranging along the direction of pointing the bottom by the opening to hold carrier 2, so that it can enclose jointly with the longeron 12 that is connected with it and form installation space 11 to hold carrier 2, moreover, the steam generator is simple in structure, and still can make frame 1 have better structural stability.

In addition, the carrier 2 may have various implementations, for example, the carrier 2 may be a carrier plate 21, the carrier 2 may also be a carrier rail extending along a direction in which the opening points to the bottom end, and the carrier 2 may also be a cross beam 13 connecting two adjacent longitudinal beams 12, and the cross beam 13 extends along a direction in which the opening points to the bottom end, which is not limited herein.

Optionally, the friction force reducing member 3 has a plurality of implementation manners, in one possible implementation manner, the friction force reducing member 3 may be a protrusion structure disposed on the carrier 2, and the protrusion structure protrudes from the bearing surface 211 to be in abutting contact with the battery pack 120, so that when the battery pack 120 is inserted into the installation space 11 or taken out from the installation space 11, the battery pack 120 may only be in abutting contact with the protrusion structure to generate sliding friction, so that the friction resistance suffered by the battery pack 120 during the insertion installation into the installation space 11 or the taking out from the installation space 11 is reduced, and the structure is simple and easy to implement.

In another possible implementation, as shown in fig. 2 and 3, the friction reducing member 3 may be a rolling structure, the rolling structure includes a rolling member 31 and a connecting member 32, the connecting member 32 is fixedly connected to the carrier 2, the rolling member 31 is connected to the connecting member 32 in a rolling manner, so that the rolling member 31 can roll relative to the carrier 2 at least along a direction in which the opening points to the bottom end, and the rolling member 31 protrudes out of the bearing surface 211 for abutting against the battery pack 120.

Therefore, the rolling members 31 are connected with the connecting members 32 in a rolling manner through the rolling members 31, so that the rolling members 31 can roll relative to the bearing member 2 at least along the direction of the opening pointing to the bottom end, the rolling members 31 protrude out of the bearing surface 211 and are used for being in abutting contact with the battery pack 120, when the battery pack 120 is inserted and installed in the installation space 11, the rolling members 31 in abutting contact with the battery pack 120 can roll along the direction of the opening pointing to the bottom end, so that rolling friction can be generated between the battery pack 120 and the rolling members 31, and compared with the sliding friction generated between the battery pack 120 and the protruding structures, the friction resistance between the battery pack 120 and the friction force weakening members 3 can be effectively reduced, so that the battery pack 120 can be inserted more labor-saving and time-saving.

And, connecting piece 32 and carrier 2 fixed connection, rolling member 31 and connecting piece 32 roll connection, compare in rolling member 31 and directly set up on carrier 2, make the mode with rolling member 31 roll connection structure on carrier 2, can make the connecting piece 32 with rolling member 31 roll connection alone, then fix connecting piece 32 on carrier 2, can effectively reduce the preparation degree of difficulty of carrier 2.

The connecting member 32 and the carrier 2 may be fixedly connected, the connecting member 32 and the carrier 2 may be welded and fixed, the connecting member 32 and the carrier 2 may be detachably fixed by a threaded connection, or the connecting member 32 and the carrier 2 may be fixed by adhesion, which is not limited herein.

In addition, the rolling member 31 can roll at least along the direction of the opening pointing to the bottom end relative to the carrier 2, and the rolling direction of the rolling member 31 relative to the carrier 2 can be various, for example, the rolling member can roll along the direction of the bottom end pointing to the opening, and can also roll along the direction perpendicular to the direction of the opening pointing to the bottom end, which is not limited herein.

Also, when the rolling member 31 is rollable relative to the carrier 2 in a direction in which the bottom end points to the opening, so that the battery pack 120 is taken out from the mounting space 11, it is also possible to save labor and time.

Alternatively, the rolling member 31 may have various implementations, for example, the rolling member 31 may be a rolling shaft, a rolling ball, or, as shown in fig. 4, a rolling ball 311, which may enable the rolling member 31 to roll in any direction relative to the carrier 2, may simplify the process of mounting the rolling member 31 on the carrier 2, and is not limited herein.

In addition, when the rolling member 31 is a rolling ball 311, as shown in fig. 3 and 4, the connecting member 32 is a fixing nut screwed to the carrier 2, and the rolling ball 311 is provided on the fixing nut in a universally rollable manner.

Therefore, the fixing nut is connected to the bearing part 2 through the thread, and the rolling ball 311 is arranged on the fixing nut in a universal rolling manner, so that the rolling ball 311 can be detachably arranged on the bearing part 2, the rolling ball 311 can be conveniently and timely maintained and replaced when the rolling ball 311 is damaged, and when the battery pack 120 is installed in the installation space 11 or taken out from the installation space 11, the battery pack 120 can always generate rolling friction with the rolling ball 311.

In a possible implementation manner, as shown in fig. 3 and fig. 4, the bearing member 2 is provided with a mounting hole and a mounting post 33 penetrating through the mounting hole, one end of the mounting post 33 is located on the bearing surface 211 and is provided with a rolling groove 331, the rolling ball 311 is accommodated in the rolling groove 331 in a rolling manner, the other end of the mounting post 33 is provided with a thread and penetrates through the mounting hole to be located on a surface of the bearing member 2 away from the bearing surface 211, and is in threaded connection with the fixing nut, so that when the rolling ball 311 needs to be maintained and replaced, the mounting post 33 and the rolling ball 311 accommodated in the rolling groove 331 can be removed by unscrewing the fixing nut, and the operation is convenient and simple.

In another possible implementation manner, the bearing surface 211 is provided with a threaded post, one end of the fixing nut can be sleeved on the threaded post for a threaded hole, the other end of the fixing nut is provided with a rolling groove, and the rolling ball 311 can be accommodated in the rolling groove in a rolling manner, so that when the rolling ball 311 needs to be maintained and replaced, the fixing nut and the rolling ball 311 accommodated in the rolling groove can be taken down by loosening the fixing nut, and the fixing nut and the rolling ball 311 accommodated in the rolling groove are simple in structure and easy to install and disassemble.

Alternatively, as shown in fig. 4, a clamping portion 321 is provided on an outer surface of the peripheral wall of the fixing nut to facilitate clamping of a tightening tool (e.g., a wrench) when the fixing nut is tightened or loosened, so that the fixing nut can be quickly tightened or loosened.

The clamping portion 321 may have various structural forms, for example, the clamping portion 321 may be at least two planes disposed on the peripheral wall of the fixing nut, and the at least two planes are disposed opposite to each other in the radial direction of the fixing nut, so that when the fastening tool clamps the fixing nut, the clamping portion 321 of the fastening tool can be clamped on the planes, which is easy to machine; the clamping portion 321 may be a wave-shaped line or the like provided on the peripheral wall of the fixing nut, so as to increase the frictional resistance between the tightening tool and the fixing nut when the tightening tool clamps the fixing nut, so that the tightening tool can clamp the fixing nut for tightening; the clamping portion 321 may be at least two bosses disposed on a peripheral wall of the fixing nut, and the at least two bosses are disposed opposite to each other along a radial direction of the fixing nut, so that when the fixing nut is clamped by the tightening tool, the clamping portion 321 of the tightening tool can be clamped on the bosses; of course, the clamping portion 321 may have other configurations, and is not limited herein.

In some embodiments, as shown in fig. 2 and 3, the number of the friction reducing members 3 is at least two, and at least two friction reducing members 3 are provided on the bearing surface 211 at intervals in a direction in which the opening is directed toward the bottom end.

Therefore, by arranging the at least two friction force weakening members 3 on the carrying surface 211 at positions closer to the opening than the bottom end, and arranging the at least two friction force weakening members 3 at intervals along the direction from the opening to the bottom end, when the battery pack 120 is mounted in the mounting space 11 or taken out from the mounting space 11, the battery pack 120 can be supported by the at least two friction force weakening members 3, on one hand, the sliding of the battery pack 120 relative to the mounting space 11 is stable, on the other hand, compared with the case that only one friction force weakening member 3 is in abutting contact with the battery pack 120, the at least two friction force weakening members 3 can effectively reduce the force applied to the friction force weakening members 3, and the probability that the friction force weakening members 3 are damaged quickly due to being applied with larger force is reduced.

And, at least two friction force reducing members 3 are disposed on the bearing surface 211 at intervals along the direction of the opening pointing to the bottom end, and the distance between at least two friction force reducing members 3 may be relatively short, for example, may be 5cm, 8cm, 10cm, etc., and is not limited herein.

In some embodiments, as shown in fig. 5 and fig. 6, a reinforcing member 24 is disposed on the other surface of the carrier 2 facing away from the carrying surface 211 to improve the structural strength of the carrier 2, so that the carrier 2 is not easily deformed when carrying the battery pack 120.

Wherein, reinforcement 24 can have multiple implementation, and in a possible implementation, reinforcement 24 can be the angle bar, and the angle bar extends along the direction of the directional bottom of opening, and just the same with the length that holds carrier 2 in the direction of the directional bottom of opening, and the angle bar subsides establish with hold carrier 2 on the one side that deviates from bearing face 211, simple structure, easily realization.

In another possible implementation manner, as shown in fig. 6, the reinforcing member 24 is a plurality of reinforcing ribs 241, and the plurality of reinforcing ribs 241 are arranged on the carrier 2 at intervals side by side along the direction of the opening pointing to the bottom end, so as to improve the structural strength of the carrier 2 without increasing the weight of the battery cluster frame structure 110 more.

And, a plurality of strengthening rib 241 set up on carrying carrier 2 along the direction of the directional bottom of opening side by side interval, can be that a plurality of strengthening rib 241 set up on carrying carrier 2 along the direction of the directional bottom of opening evenly at interval for the increase of each part's of carrying carrier 2 structural strength is comparatively even, in order to prevent to carry the condition that the part position department of carrier 2 appears great deformation.

In addition, the reinforcing rib 241 is disposed on the bearing member 2 and can be disposed on the bearing surface 211 of the bearing member 2, and the height of the reinforcing rib 241 along the direction perpendicular to the bearing surface 211 is smaller than the height of the friction force reducer 3 along the direction perpendicular to the bearing surface 211; the reinforcing rib 241 may be disposed on the other surface of the carrier 2 away from the carrying surface 211, which is not limited herein, as long as the reinforcing rib 241 can improve the structural strength of the carrier 2.

In some embodiments, as shown in fig. 1-3, the carrier 2 includes two carrier plates 21 disposed opposite to each other along a horizontal direction (a direction shown as Y in fig. 1) perpendicular to a direction in which the opening points to the bottom end, each of the two carrier plates 21 extends along the direction in which the opening points to the bottom end, and an upward surface of the carrier plate 21 forms a carrier surface 211.

Therefore, the battery pack 120 can be supported by the two supporting plates 21 disposed opposite to each other in the horizontal direction perpendicular to the direction in which the opening points to the bottom end, and compared to the supporting plate 2 including one supporting plate 21 having a larger area, which extends in the direction in which the opening points to the bottom end, and also extends in the horizontal direction perpendicular to the direction in which the opening points to the bottom end, the weight of the supporting plate 2 can be effectively reduced.

The two bearing plates 21, which are disposed opposite to each other along the horizontal direction perpendicular to the direction of the opening pointing to the bottom, may be disposed on two sides of the battery pack 120 along the horizontal direction perpendicular to the direction of the opening pointing to the bottom, so that the battery pack 120 can be stably borne on the bearing surface 211.

Optionally, as shown in fig. 1 and fig. 3, in a horizontal direction perpendicular to a direction in which the opening points to the bottom end, one side of each of the two loading plates 21 that are opposite to each other is provided with a limiting plate 22, and a space for accommodating the battery pack 120 is formed between the two limiting plates 22, so that when the battery pack 120 is inserted into the installation space 11 or taken out from the installation space 11, the limiting plates 22 can play a certain guiding role in inserting or taking out the battery pack 120, so as to prevent the battery pack 120 from sliding out of the loading plates 21 when being inserted into or taken out.

The limiting plates 22 disposed on the opposite sides of the two bearing plates 21 may be welded to the bearing plates 21, integrally formed with the bearing plates 21 (if a part of the bearing plates 21 is bent to form the limiting plates 22), or connected to the bearing plates 21 by a screw thread pair, which is not limited herein.

Alternatively, as shown in fig. 2 and 3, a fixing plate 23 is provided on at least one of both ends of the carrier plate 21 in a direction in which the opening is directed to the bottom end, and the fixing plate 23 is used to detachably fix and connect with the battery pack 120.

Thus, after the battery pack 120 is mounted to the mounting space 11, the battery pack 120 can be fixed in the mounting space 11 by the fixing plate 23, so that the battery pack 120 can be stably and firmly mounted in the frame 1, preventing the battery pack 120 mounted in the frame 1 from slipping down due to vibration, impact, etc. of the battery cluster frame structure 110.

The fixing plate 23 is used for being detachably and fixedly connected with the battery pack 120, and the fixing plate 23 and the battery pack 120 may be connected through a screw thread pair or a pin, which is not limited herein.

In addition, the fixing plate 23 is disposed on one of two ends of the bearing plate 21 along the direction in which the opening points to the bottom end, or the fixing plates 23 are disposed on two ends of the bearing plate 21 along the direction in which the opening points to the bottom end, which is not limited herein.

Optionally, the fixing plate 23 extends from the bearing surface 211 to a direction away from the bearing surface 211, so as to prevent the fixing plate 23 from interfering with the battery pack 120 when the battery pack 120 is inserted into the installation space 11 or removed from the installation space 11.

Example two

The present embodiment further provides a battery cluster 100, as shown in fig. 7, including the battery cluster frame structure 110 and the battery pack 120 according to any one of the first embodiment, the battery pack 120 passes through the opening of the battery cluster frame structure 110, slides along the supporting surface 211 of the supporting member 2 toward the bottom end, and is inserted into the mounting space 11, and the battery pack 120 is supported on the supporting surface 211 and abuts against the friction force reducer 3 disposed on the supporting surface 211.

In this embodiment, the battery pack 120 passes through the opening of the battery cluster frame structure 110 and slides along the supporting surface 211 of the supporting member 2 toward the bottom end and is inserted into the installation space 11, the battery pack 120 is supported on the supporting surface 211 and is in abutting contact with the friction force reducing member 3 disposed on the supporting surface 211, so that the battery pack 120 is inserted into the installation space 11, the battery pack 120 is in sliding contact with the friction force reducing member 3 disposed on the supporting surface 211, the friction resistance between the battery pack 120 and the supporting surface 211 is reduced, the insertion of the battery pack 120 is time-saving and labor-saving, and the friction damage to the battery pack 120 due to the friction resistance can be reduced.

Also, when the battery pack 120 is taken out of the mounting space 11, the battery pack 120 can be also brought into sliding contact with the friction force reducer 3 provided on the bearing surface 211, so that the taking out of the battery pack 120 is time-saving and labor-saving.

In addition, since the battery cluster frame structure 110 in the battery cluster 100 is the battery cluster frame structure 110 in the first embodiment, the battery cluster 100 has the same or similar effect as the battery cluster frame structure 110 in the first embodiment, and the description thereof is omitted.

EXAMPLE III

The present embodiment further provides a battery energy storage system, as shown in fig. 6, which includes a box (not shown) and the battery cluster 100 of the second embodiment, wherein the battery cluster 100 is accommodated in the box to protect the battery cluster 100.

The battery cluster 100 in the battery energy storage system is the battery cluster 100 in the second embodiment, and therefore, the battery energy storage system has the same or similar effect as the battery cluster 100 in the second embodiment, which can be referred to above specifically, and is not described herein again. Moreover, the battery cluster frame structure 110 in the battery cluster 100 of the second embodiment is the battery cluster frame structure 110 in the first embodiment, and therefore, the battery energy storage system has the same or similar effects as the battery cluster frame structure 110 in the first embodiment, and the description thereof is omitted.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery cluster rack structure for mounting a battery pack, comprising:

a frame having an installation space;

2. The battery cluster frame structure of claim 1, wherein the friction reducing member is a rolling structure, the rolling structure comprises a rolling member and a connecting member, the connecting member is fixedly connected with the supporting member, the rolling member is in rolling connection with the connecting member, so that the rolling member can roll relative to the supporting member at least along the direction of the opening toward the bottom end, and the rolling member protrudes out of the supporting surface for abutting against the battery pack.

3. The battery cluster frame structure of claim 2, wherein the rolling members are rolling balls.

4. The battery cluster frame structure of claim 3, wherein the connecting member is a fixing nut that is threadedly connected to the carrier, and the rolling balls are universally rollably disposed on the fixing nut.

5. The battery cluster frame structure according to claim 4, wherein a clamping portion is provided on an outer surface of the peripheral wall of the fixing nut.

6. The battery cluster frame structure according to any one of claims 1 to 5, wherein the number of the friction reducing members is at least two, and at least two of the friction reducing members are provided on the bearing surface at intervals in a direction in which the opening is directed toward the bottom end.

7. The battery cluster frame structure according to any one of claims 1 to 5, wherein a reinforcing member is provided on the other side of the carrier member facing away from the carrying surface.

8. The battery cluster frame structure of claim 7, wherein the reinforcing member is a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged on the carrier at intervals side by side along a direction of the opening toward the bottom end.

9. The battery cluster frame structure according to any one of claims 1 to 5, wherein the carrier member comprises two carrier plates oppositely disposed in a horizontal direction perpendicular to a direction in which the opening is directed toward the bottom end, both of the carrier plates extending in a direction in which the opening is directed toward the bottom end, an upward facing side of the carrier plates forming the carrier surface.

10. The battery cluster frame structure according to claim 9, wherein along a horizontal direction perpendicular to a direction in which the opening points to the bottom end, two opposite sides of the two bearing plates are respectively provided with a limiting plate, and a space for accommodating the battery pack is formed between the two limiting plates.

11. The battery cluster frame structure of claim 9, wherein a fixing plate is disposed on at least one of two ends of the bearing plate along a direction of the opening toward the bottom end, the fixing plate being configured to be detachably and fixedly connected to the battery pack.

12. The battery cluster frame structure of claim 11, wherein the retaining plate extends from the bearing surface in a direction away from the bearing surface.

13. A battery cluster, comprising:

the battery cluster frame structure of any one of claims 1-12;