CN216648501U

CN216648501U - Electricity core module

Info

Publication number: CN216648501U
Application number: CN202122809282.8U
Authority: CN
Inventors: 沈重洋; 杨小如; 程威; 陈家胜
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-05-31
Anticipated expiration: 2031-11-16

Abstract

The utility model provides a battery cell module, and relates to the technical field of batteries. The battery cell module comprises an upper cover, an aluminum bar and a clamping piece. The upper cover is provided with a first through hole, the aluminum bar is provided with a second through hole, and the aluminum bar is used for being connected with the pole of the battery cell. The clamping piece sequentially penetrates through the first through hole and the second through hole and is clamped with the aluminum busbar to be matched, so that the upper cover is stably fixed on the aluminum busbar, the upper cover is prevented from falling off, the upper cover is guaranteed to play an insulating role in the battery cell module all the time, and the stability and the safety of the battery cell module are improved. Therefore, the battery cell module provided by the utility model is simple in structure, convenient to install and strong in stability.

Description

Electricity core module

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery cell module.

Background

The cell module generally adopts a PC bending upper cover as an upper cover of the cell module, and the PC bending upper cover is bonded with the module to fix the PC bending upper cover, however, the size of the existing PC bending upper cover is easy to deform, so that the size of the module is not standard; in addition, the PC bending upper cover is easy to fall off after being bonded with the module, so that insulation failure is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery cell module, which can stably fix an upper cover on the module and prevent insulation failure caused by falling off of the upper cover.

The embodiment of the utility model is realized by the following steps:

in a first aspect, the utility model provides a battery cell module, which comprises an upper cover, an aluminum bar and a clamping piece;

the upper cover is provided with a first through hole;

the aluminum bar is used for being connected with a pole of the battery cell and is provided with a second through hole;

the clamping piece sequentially penetrates through the first through hole and the second through hole and is matched with the aluminum bar in a clamping mode, so that the upper cover is fixed on the aluminum bar.

In an optional embodiment, the clamping piece comprises a pressing part, a connecting part and a clamping part, and two ends of the connecting part are respectively connected with the pressing part and the clamping part;

the clamping part sequentially penetrates through the first through hole and the second through hole so as to limit the upper cover and the aluminum bar between the pressing part and the clamping part.

In an optional embodiment, the clamping part is provided with an inclined guide surface and a clamping surface, the inclined guide surface is used for guiding the clamping part to pass through the first through hole and the second through hole, and the clamping surface is used for being connected with the aluminum bar in a supporting manner under the condition that the clamping part passes through the second through hole.

In an optional embodiment, the upper cover is provided with a groove, and the first through hole is formed in the bottom wall of the groove;

the aluminum bar is provided with a boss, and the second through hole is formed in the boss;

the bottom of the groove is attached to the top of the boss, so that the first through hole is communicated with the second through hole, and the clamping part can sequentially penetrate through the first through hole and the second through hole.

In an optional embodiment, the upper cover is further provided with a U-shaped groove, and the groove is formed in the bottom wall of the U-shaped groove and located at one end far away from the side edge of the upper cover.

In an alternative embodiment, the groove matches the shape of the pressing portion for accommodating the pressing portion.

In an optional embodiment, the boss and the surface of the battery cell are arranged at an interval, and a gap between the boss and the surface of the battery cell is used for accommodating the clamping part.

In an optional embodiment, the boss includes a plurality of first bosses, and the plurality of first bosses are disposed on the aluminum bar and located between two adjacent poles of the battery cell connected to the aluminum bar.

In an alternative embodiment, the grooves include a plurality of first grooves, and the plurality of first grooves are arranged in a staggered manner on both sides of the upper cover.

In an optional embodiment, the groove further includes a plurality of second grooves, the plurality of second grooves are respectively disposed at two ends of the upper cover and are located at the same side, and a distance between the second groove and a side edge of the upper cover is greater than a distance between the first groove and the side edge of the upper cover;

the boss comprises a plurality of second bosses, and the second bosses are in one-to-one correspondence with the second grooves.

The battery cell module provided by the embodiment of the utility model has the beneficial effects that: the clamping piece sequentially penetrates through the first through hole formed in the upper cover and the second through hole formed in the aluminum bar, and is clamped with the aluminum bar in a matching mode, so that the upper cover is stably fixed on the aluminum bar, the upper cover is prevented from falling off, the upper cover is guaranteed to play an insulating role in the battery cell module all the time, and the stability and the safety of the battery cell module are improved. Therefore, the battery cell module provided by the utility model is simple in structure, convenient to install and strong in stability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a battery cell module according to an embodiment of the present invention;

fig. 2 is an exploded view of a cell module according to an embodiment of the present invention;

FIG. 3 is a schematic view of a structure of a retaining member according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an upper cover structure according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an aluminum bar according to an embodiment of the present invention.

Icon: 10-a cell module; 100-a catch; 110-a pressing part; 120-a connecting portion; 130-a catch; 131-an inclined guide surface; 132-a clamping surface; 200-an upper cover; 210-a first via; 220-a groove; 221-a first groove; 222-a second groove; 223-a third groove; 230-U-shaped slot; 300-aluminium bars; 310-a second via; 320-boss; 321-a first boss; 322-a second boss; 323-a third boss; 400-electric core; 500-framework.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and fig. 2, an embodiment of the utility model provides a battery cell module 10, which is applied to various fields such as power batteries, energy storage batteries, new energy batteries, and the like.

The battery cell module 10 includes a clamping member 100, an upper cover 200, an aluminum bar 300, a battery cell 400, and a frame 500.

In this embodiment, the frame 500 may be composed of an end plate structure and a side plate structure, a plurality of battery cells 400 are placed in the frame 500 in parallel, and the aluminum bars 300 are connected to the poles of the battery cells 400. The cover 200 is formed by a PC material by suction molding and is connected to the aluminum bar 300.

Further, the upper cover 200 is provided with a first through hole 210, the aluminum bar 300 is provided with a second through hole 310, and the aluminum bar 300 is used for connecting with a pole of the battery cell 400. The retainer 100 sequentially passes through the first through hole 210 and the second through hole 310 and is in retaining engagement with the aluminum bar 300 to fix the upper cover 200 to the aluminum bar 300.

In this embodiment, the number of the aluminum bars 300 includes a plurality of aluminum bars 300, and the aluminum bars 300 are distributed in two rows and welded to the poles of the battery cells 400, so that the battery cells 400 are connected in parallel or in parallel. The clamping piece 100 sequentially penetrates through the first through hole 210 formed in the upper cover 200 and the second through hole 310 formed in the aluminum bar 300 and is clamped and matched with the aluminum bar 300, so that the upper cover 200 is stably fixed on the aluminum bar 300, the upper cover 200 is prevented from falling off, the upper cover 200 is ensured to play an insulating role on the cell module 10 all the time, and the stability and the safety of the cell module 10 are improved. Therefore, the battery cell module 10 provided by the utility model has the advantages of simple structure, convenience in installation and strong stability.

Referring to fig. 3, the retaining member 100 includes a pressing portion 110, a connecting portion 120 and a retaining portion 130, and two ends of the connecting portion 120 are respectively connected to the pressing portion 110 and the retaining portion 130. The catches 130 pass through the first and second through

holes

210 and 310 in order to restrain the upper cover 200 and the aluminum bar 300 between the pressing part 110 and the catches 130.

In the embodiment, an external force acts on the pressing portion 110 to make the connecting portion 120 push the retaining portion 130 to sequentially pass through the first through hole 210 and the second through hole 310 under the action of the pressing portion 110, and the retaining portion 130 is in retaining fit with the aluminum bar 300 to limit the upper cover 200 and the aluminum bar 300 between the pressing portion 110 and the retaining portion 130, so that the upper cover 200 is stably fixed on the aluminum bar 300 by the retaining member 100, and the upper cover 200 is prevented from falling off.

Further, the holding part 130 has an inclined guide surface 131 and a holding surface 132, the inclined guide surface 131 is used for guiding the holding part 130 to pass through the first through hole 210 and the second through hole 310, and the holding surface 132 is used for abutting connection with the aluminum bar 300 under the condition that the holding part 130 passes through the second through hole 310.

In the present embodiment, the number of the connecting portion 120 and the two clasps 130 includes two, and the two clasps 130 are disposed oppositely. The chucking member 100 is formed of a material having elastic deformation, and the distance between the outermost sides of the two chucking parts 130 is slightly greater than the diameters of the first and second through

holes

210 and 310.

In practical applications, when the clamping member 100 is installed on the upper cover 200 and the aluminum bar 300, the clamping portion 130 is aligned with the first through hole 210 or the second through hole 310 and presses the pressing portion 110, the two inclined guide surfaces 131 drive the connecting portion 120 to elastically deform so that the two clamping portions 130 move in opposite directions until the two clamping portions 130 can just pass through the first through hole 210 or the second through hole 310, after passing through the first through hole 210 or the second through hole 310, the two clamping portions 130 recover to an undeformed state, and finally the clamping surface 132 is connected with the surface of the aluminum bar 300 in a supporting manner, so that the clamping member 100 is clamped and matched with the upper cover 200 and the aluminum bar 300, the upper cover 200 is ensured to be stably fixed on the aluminum bar 300, and the stability of the battery module 10 is improved.

In addition, in the case that the holder 100 is installed on the upper cover 200 and the aluminum bar 300, the two holders 130 can be moved toward each other by pressing the two holders 130, so that the two holders 130 can pass through the first through hole 210 or the second through hole 310 to take out the holder 100, thereby achieving the detachable installation of the holder 100.

Referring to fig. 4, the upper cover 200 is formed with a groove 220, and the first through hole 210 is formed in a bottom wall of the groove 220.

In this embodiment, when the upper cover 200 is installed on the surface of the battery cell module 10, the upper cover 200 may be pressed by a wire harness or other structural members on the surface of the battery cell module 10, so that the upper cover 200 is deformed or even damaged, and therefore, the upper cover 200 may be spaced from the surface of the battery cell 400 by a certain distance to provide an accommodating space for the wire harness or other structural members. However, when the distance between the upper cover 200 and the battery cell 400 is relatively large, it is not favorable for the clamping member 100 to fixedly connect the upper cover 200 and the aluminum bar 300, so that the groove 220 is formed in the upper cover 200, and the bottom wall of the groove 220 is provided with the first through hole 210 for the clamping member 100 to pass through, so as to reduce the distance between the upper cover 200 and the aluminum bar 300, thereby improving the structural stability when the upper cover 200 and the aluminum bar 300 are connected through the clamping member 100.

Further, the upper cover 200 is further provided with a U-shaped groove 230, and the groove 220 is provided on the bottom wall of the U-shaped groove 230 and located at one end far away from the side edge of the upper cover 200.

In the present embodiment, the U-shaped groove 230 is a U-shaped stamping rib formed by stamping the upper cover 200, and a plurality of U-shaped grooves 230 are formed in the upper cover 200, so that the structural strength of the upper cover 200 can be increased, and the upper cover 200 can be prevented from being easily deformed. The groove 220 is formed in the bottom wall of the U-shaped groove 230, so that the depth of the groove 220 can be reduced, the first through hole 210 formed in the groove 220 can be conveniently formed, and the structural strength of the groove 220 can be ensured.

Further, the groove 220 matches with the shape of the pressing portion 110 for accommodating the pressing portion 110.

In the embodiment, the shape of the groove 220 is matched with that of the pressing portion 110, so that when the clamping member 100 is mounted on the upper cover 200 and the aluminum bar 300, the pressing portion 110 can be just accommodated in the groove 220, thereby preventing the clamping member 100 from shaking when mounted on the upper cover 200 and the aluminum bar 300, and the surface of the pressing portion 110 is located below the bottom wall of the U-shaped groove 230, so as to protect the pressing portion 110.

Further, the groove 220 includes a plurality of first grooves 221 and second grooves 222, and the plurality of first grooves 221 are staggered on two sides of the upper cover 200.

In this embodiment, the plurality of first grooves 221 are distributed on two sides of the upper cover 200 in two rows, and the two rows of first grooves 221 are staggered, that is, any one first groove 221 in a row is just opposite to the space between the two nearest first grooves 221 in the other row. The first grooves 221 arranged in a staggered manner can increase the stability of the upper cover 200 when being fixed, and prevent the upper cover 200 from easily falling off.

Specifically, the number of the first grooves 221 is three, one first groove 221 is located in the middle of one side of the upper cover 200, and the other two second grooves 222 are located at two ends of the other opposite side of the upper cover 200.

Further, the plurality of second grooves 222 are respectively disposed at two ends of the upper cover 200 and located at the same side, and a distance between the second grooves 222 and the side of the upper cover 200 is greater than a distance between the first grooves 221 and the side of the upper cover 200.

In this embodiment, the plurality of second grooves 222 are respectively located at two ends of the row of the first grooves 221 with a smaller number, and a distance between the second grooves 222 and the side edge of the upper cover 200 is greater than a distance between the first grooves 221 and the side edge of the upper cover 200, and a length of the U-shaped groove 230 where the second grooves 222 are located is also greater than a length of the U-shaped groove 230 where the first grooves 221 are located.

Specifically, the number of the second grooves 222 is two, and the two second grooves 222 and the one first groove 221 are located on the same side and located at two ends of the first groove 221 respectively.

In practical application, the upper cover 200 is usually marked with marks of a positive electrode and a negative electrode, so that when the upper cover 200 is installed, the positive electrode of the upper cover 200 is usually required to correspond to the positive electrode of the battery cell module 10, and the negative electrode of the upper cover 200 corresponds to the negative electrode of the battery cell module 10, that is, the installation direction of the upper cover 200 is unique, so that only one side edge of the upper cover 200 is provided with two second grooves 222 as a fool-proof device, and the upper cover 200 is prevented from being installed by mistake.

Further, the grooves 220 further include a plurality of third grooves 223, and the plurality of third grooves 223 are staggered with the plurality of first grooves 221.

In the present embodiment, the third groove 223 is a spare groove, so as to be engaged with the aluminum bar 300 through the engaging member 100 when the battery cell module 10 is configured in other structures. It should be noted that the third groove 223 has the same structure as the first groove 221.

Specifically, the number of the third grooves 223 is four, two of the third grooves 223 are respectively located on two sides of one first groove 221 and located between two second grooves 222, and the other two third grooves 223 are located between two first grooves 221.

Alternatively, the number and the position relationship of the first groove 221, the second groove 222 and the third groove 223 may be other arrangements, and are not limited in particular.

Referring to fig. 5, the aluminum bar 300 is provided with a boss 320, and the second through hole 310 is opened in the boss 320. The bottom of the groove 220 is attached to the top of the boss 320 so that the first through hole 210 and the second through hole 310 are communicated, and the catch 130 can pass through the first through hole 210 and the second through hole 310 in sequence.

In the embodiment, when the upper cover 200 is mounted on the aluminum bar 300, the bottom of the groove 220 formed in the upper cover 200 is attached to the top of the boss 320 formed on the aluminum bar 300, so as to mount the retaining member 100, and ensure that the pressing portion 110 of the retaining member 100 can be completely accommodated in the groove 220. It should be noted that, when the retaining portion 130 is mounted on the upper cover 200 and the aluminum bar 300, the pressing portion 110 abuts against the upper cover 200, and the retaining portion 130 abuts against the aluminum bar 300, so that the upper cover 200 is stably and firmly fixed on the aluminum bar 300.

Further, the boss 320 is spaced from the surface of the battery cell 400, and a gap between the boss 320 and the surface of the battery cell 400 is used for accommodating the clamping part 130.

In this embodiment, the lower surface of the protruding boss 320 protruding from the aluminum bar 300 is spaced from the surface of the battery cell 400, so as to ensure that there is enough space between the battery cell 400 and the boss 320 to accommodate the clamping portion 130.

Further, the boss 320 includes a plurality of first bosses 321, a second boss 322 and a third boss 323, and a plurality of first bosses 321 are disposed on the aluminum bar 300 and located between the poles of two adjacent battery cells 400 connected to the aluminum bar 300.

In the present embodiment, the plurality of third bosses 323 correspond to the plurality of first grooves 221 one by one, and it is understood that the boss 320, which is not corresponding to the first groove 221 and is disposed on the same aluminum bar 300 and connected between the poles of the two battery cells 400, is the third boss 323, and the third boss 323 is a spare boss, so as to be engaged with the upper cover 200 through the clamping member 100 when the battery cell module 10 is configured in other structures. It should be noted that the third boss 323 has the same structure as the third boss 323.

Further, the plurality of second bosses 322 correspond to the plurality of second grooves 222 one to one.

In this embodiment, the number of the second bosses 322 is two, and the two second bosses 322 are respectively disposed on the aluminum bars 300 of the two battery cells 400 on the two sides of the battery cell module 10 to respectively correspond to the two second grooves 222, so as to jointly achieve the fool-proof function with the two second grooves 222, and ensure the uniqueness of the installation direction of the upper cover 200.

In summary, the utility model provides a battery cell module 10, wherein the clamping member 100 sequentially penetrates through the first through hole 210 formed in the upper cover 200 and the second through hole 310 formed in the aluminum bar 300, and is clamped and matched with the aluminum bar 300, so that the upper cover 200 is stably fixed on the aluminum bar 300, the upper cover 200 is prevented from falling off, the upper cover 200 is ensured to have an insulating effect on the battery cell module 10 all the time, and the stability and the safety of the battery cell module 10 are improved. The external force acts on the pressing part 110 to enable the connecting part 120 to push the clamping part 130 to sequentially pass through the first through hole 210 and the second through hole 310 under the action of the pressing part 110, and the clamping part 130 is in clamping fit with the aluminum bar 300 to limit the upper cover 200 and the aluminum bar 300 between the pressing part 110 and the clamping part 130, so that the upper cover 200 is stably fixed on the aluminum bar 300 through the clamping piece 100, and the upper cover 200 is prevented from falling off. The upper cover 200 is provided with a groove 220, and the bottom wall of the groove 220 is provided with a first through hole 210 for the clamping member 100 to pass through, so as to reduce the spacing distance between the upper cover 200 and the aluminum bar 300, thereby improving the structural stability when the upper cover 200 and the aluminum bar 300 are connected through the clamping member 100. By forming the plurality of U-shaped grooves 230 in the upper cover 200, the structural strength of the upper cover 200 can be increased, and the upper cover 200 is prevented from being easily deformed. The groove 220 is formed in the bottom wall of the U-shaped groove 230, so that the depth of the groove 220 can be reduced, the first through hole 210 formed in the groove 220 can be conveniently formed, and the structural strength of the groove 220 can be ensured. The bottom of the groove 220 formed in the upper cover 200 corresponds to the top of the boss 320 formed in the aluminum bar 300 one by one and is attached to each other, so as to facilitate installation of the retaining member 100 and ensure that the pressing portion 110 of the retaining member 100 can be completely accommodated in the groove 220.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cell module is characterized by comprising an upper cover, an aluminum bar and a clamping piece;

the upper cover is provided with a first through hole;

2. The battery cell module of claim 1, wherein the clamping member comprises a pressing portion, a connecting portion and a clamping portion, and two ends of the connecting portion are respectively connected with the pressing portion and the clamping portion;

3. The battery cell module of claim 2, wherein the clamping portion has an inclined guide surface and a clamping surface, the inclined guide surface is used for guiding the clamping portion to pass through the first through hole and the second through hole, and the clamping surface is used for being connected with the aluminum bar in a supporting manner when the clamping portion passes through the second through hole.

4. The battery cell module according to claim 2, wherein a groove is formed in the upper cover, and the first through hole is formed in a bottom wall of the groove;

5. The battery cell module of claim 4, wherein the upper cover further defines a U-shaped groove, and the groove is disposed on a bottom wall of the U-shaped groove and located at an end of the side edge away from the upper cover.

6. The battery cell module of claim 4 or 5, wherein the groove is matched with the pressing portion in shape and is used for accommodating the pressing portion.

7. The battery cell module of claim 4, wherein the boss is spaced from a surface of the battery cell, and a gap between the boss and the surface of the battery cell is used for accommodating the clamping portion.

8. The battery cell module of claim 4, wherein the boss comprises a plurality of first bosses, and the first bosses are disposed on the aluminum bar and located between two adjacent battery cell poles connected to the aluminum bar.

9. The battery cell module of claim 4 or 5, wherein the grooves comprise a plurality of first grooves, and the first grooves are staggered on two sides of the upper cover.

10. The battery cell module of claim 9, wherein the grooves further include a plurality of second grooves, the second grooves are respectively disposed at two ends of the upper cover and are located on the same side, and a distance between the second grooves and a side edge of the upper cover is greater than a distance between the first grooves and the side edge of the upper cover;