CN220553539U

CN220553539U - Battery module and electricity utilization device

Info

Publication number: CN220553539U
Application number: CN202322072930.5U
Authority: CN
Inventors: 孙世强
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-03-01
Anticipated expiration: 2033-08-02

Abstract

The utility model belongs to the technical field of power batteries, and discloses a battery module and an electric device, wherein the battery module comprises a battery pack, two spacing brackets and a plurality of fasteners, wherein the battery pack is arranged between the two spacing brackets in a spacing way, one of the two spacing brackets is rotationally provided with a plurality of movable columns, the other one is correspondingly provided with a plurality of fixed columns, and the movable columns and the fixed columns are in sliding connection and can be mutually locked; the fasteners are arranged in one-to-one correspondence with the movable columns, and penetrate through the movable columns and are in threaded connection with the fixed columns. The battery module can improve the fixation of the batteries, ensure the connection stability between the batteries, improve the safety of the battery module, and has high space utilization rate and convenient disassembly.

Description

Battery module and electricity utilization device

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery module and an electric device.

Background

With the continuous development of new energy industry, lithium batteries are being used by various industries as energy storage units, and as the battery system is used on different equipment with different requirements, the battery system has a bad working environment and high vibration strength aiming at equipment similar to special engineering vehicles, and the performance of the battery system is improved. The current cylindrical battery cells are generally assembled by adopting battery brackets to fix the battery cells when being grouped, the battery brackets and the battery cells lack constraint in the manufacturing and running processes, and the phenomenon that the battery cells jump in the brackets exists, so that the nickel sheets of the series battery cells are stressed, and the nickel sheets are unwelded under the condition of long-time vibration.

Some battery modules or battery packs in the prior art adopt an upper layer of battery bracket and a lower layer of battery bracket to arrange a plurality of cylindrical battery cores between the upper layer of battery bracket and the lower layer of battery bracket, and the upper layer of battery bracket and the lower layer of battery bracket are fixedly connected through bolts, but the phenomenon that looseness can occur after long-time use is fixed through threaded connection, and the battery module or battery pack is difficult to be suitable for the working condition with higher vibration intensity. Some battery modules or battery packs in the prior art are glued, so that the whole battery pack is fixed through structural glue, and the battery pack can be firmly fixed but cannot be detached and is complex in manufacturing process.

Therefore, there is a need to design a battery module to solve the above-mentioned technical problems.

Disclosure of Invention

An object of the present utility model is to provide a battery module, which can improve the fixation of batteries, ensure the connection stability between batteries, improve the safety of the battery module, and have high space utilization and convenient disassembly.

To achieve the purpose, the utility model adopts the following technical scheme:

a battery module, comprising:

a battery pack;

the battery pack is characterized by comprising two spacing brackets arranged at intervals, the battery pack is arranged between the two spacing brackets in a limiting way, one of the two spacing brackets is rotationally provided with a plurality of movable columns, the other one of the two spacing brackets is correspondingly provided with a plurality of fixed columns, and the movable columns and the fixed columns are connected in a sliding way and can be locked with each other;

the fasteners are arranged in one-to-one correspondence with the movable columns, penetrate through the movable columns and are in threaded connection with the fixed columns.

Optionally, a first clamping groove is formed at one end of the movable column, which faces the fixed column, a first protrusion is formed at one end of the fixed column, which faces the movable column, and the first clamping groove and the first protrusion are connected in a matched manner and can be locked with each other.

Optionally, a second clamping groove is formed in a groove wall of the first clamping groove, a second protrusion is correspondingly formed on an outer peripheral surface of the first protrusion, and the second protrusion is slidably connected in the second clamping groove and can be locked with each other.

Optionally, the second clamping groove includes a sliding groove and a clamping groove that are disposed perpendicular to each other, the sliding groove extends along an axial direction of the movable column, the second protrusion is configured to slide along the sliding groove along with a sliding movement of the movable column along with the fixed column, and the second protrusion is configured to slide in the clamping groove along with a rotating movement of the movable column, so that the movable column and the fixed column are locked with each other.

Optionally, the movable column includes a column body, a column cap and a limiting ring, the column cap is disposed at one end of the column body, the limiting ring and the column cap are disposed at intervals to form a loop connection portion, the limiting support is provided with a via hole, and the loop connection portion is rotatably disposed in the via hole.

Optionally, a third clamping groove is formed in the column cap, and the third clamping groove is used for being connected with an external tool in a matching mode.

Optionally, the movable column is provided with a through hole extending along the axial direction of the movable column, the fixed column is provided with a threaded hole, and the fastener penetrates through the through hole and is in threaded connection with the threaded hole.

Optionally, the limiting support is provided with a plurality of mounting grooves, the battery pack comprises a plurality of electric cores, the mounting grooves are arranged in a one-to-one correspondence with the electric cores of the battery pack, and the electric cores are axially limited in the mounting grooves of the two limiting supports.

Optionally, a plurality of limiting parts are arranged on one side, far away from the movable column or the fixed column, of the limiting support, at least two limiting parts are arranged on the limiting support on the periphery of each mounting groove, and the limiting parts can be abutted to two sides of the battery cell along the axial direction of the battery cell.

Another object of the present utility model is to provide an electric device, which includes the battery module according to any one of the above schemes, and the electric device can improve the fixation of the batteries, ensure the connection stability between the batteries, and has high space utilization and convenient disassembly.

The utility model has the beneficial effects that:

the utility model provides a battery module and an electricity utilization device, wherein a battery pack is limited and arranged on two limiting brackets, the two limiting brackets are not only locked by matching a movable column and a fixed column, but also fixed by a fastener, the double fixation improves the connection strength between the two limiting brackets, simultaneously improves the fixation of an electric core in the battery pack, so that the electric core cannot shake, the movable column and the fixed column are both provided with a plurality of electric cores, improves the connection strength between the two limiting brackets, further improves the electric core fixation firmness in the battery pack, and can detach the fastener when the battery module is required to be detached and maintained, and then the movable column and the fixed column are separated in a sliding way, so that the battery module can be detached, and the battery module is more convenient to assemble and detach.

Drawings

Fig. 1 is an isometric view of a battery module according to an embodiment of the present utility model;

fig. 2 is an exploded view of a battery module according to an embodiment of the present utility model;

FIG. 3 is an isometric view of a movable column according to an embodiment of the present utility model from one perspective;

FIG. 4 is an isometric view of another view of a movable column provided in accordance with an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a spacing bracket loading dock post provided in accordance with an embodiment of the present utility model;

fig. 6 is an isometric view of a fixing post according to an embodiment of the present utility model.

In the figure:

10. a battery pack; 11. a battery cell;

20. a limit bracket; 21. a mounting groove; 22. a via hole; 23. a step portion;

30. a movable column; 31. a column; 311. a first clamping groove; 312. a second clamping groove; 3121. a sliding groove; 3122. a clamping groove; 32. a cap; 321. a third clamping groove; 33. a limiting ring; 34. a through hole;

40. fixing the column; 41. a first protrusion; 42. a second protrusion; 43. a threaded hole;

50. a fastener; 60. and a limiting piece.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The embodiment provides a battery module, and this battery module can improve the fixed to the battery, ensures the steadiness of connecting between the battery, has improved this battery module's security, and space utilization is high and convenient to detach.

Specifically, as shown in fig. 1 to 6, the battery module includes a battery pack 10, a plurality of fasteners 50, and two spacing brackets 20 disposed at intervals. The battery pack 10 is limited between the two limiting brackets 20, one of the two limiting brackets 20 is rotatably provided with a plurality of movable columns 30, the other one is provided with a plurality of fixed columns 40 in a one-to-one correspondence manner, the movable columns 30 and the fixed columns 40 are in sliding connection and can be locked with each other, the fastening pieces 50 are arranged in a one-to-one correspondence manner with the movable columns 30, and the fastening pieces 50 penetrate through the movable columns 30 and are in threaded connection with the fixed columns 40.

The battery module of this embodiment is through setting up the group battery 10 spacing in two spacing supports 20, and two spacing supports 20 not only cooperate the locking through movable column 30 and fixed column 40, still be fixed through fastener 50, dual fixed joint strength between two spacing supports 20 has been improved, the fixing of electric core 11 in the group battery 10 has been improved simultaneously, make it can not take place to rock, and movable column 30 and fixed column 40 all are equipped with a plurality ofly, joint strength between two spacing supports 20 has been improved, further the fixed firm nature of electric core 11 in the group battery 10 has been improved, avoid taking place the fracture phenomenon of each connecting piece of connecting electric core 11, the security of this battery module has been improved, and when the maintenance is dismantled to the battery module to needs, can demolish fastener 50, slide movable column 30 and fixed column 40 again and separate, can realize the dismantlement to the battery module, more be convenient for assemble and dismantle.

Optionally, the movable pillar 30, the fixed pillar 40 and the fastening member 50 are respectively provided with a plurality of corresponding fixing members, and are disposed at the periphery of each of the battery cells 11, so that the battery cells 11 can be stably and limitedly positioned on the two limiting brackets 20.

In order to realize the sliding fit connection between the movable column 30 and the fixed column 40, in this embodiment, as shown in fig. 3 to 6, a first clamping groove 311 is disposed at an end of the movable column 30 facing the fixed column 40, a first protrusion 41 is disposed at an end of the fixed column 40 facing the movable column 30, the first clamping groove 311 and the first protrusion 41 are slidably connected and can be locked with each other, and the first protrusion 41 is slidably connected to the first clamping groove 311, and then the first protrusion 41 and the first clamping groove 311 are locked, so that the two limiting brackets 20 can be connected to or separated from each other.

In order to realize the guiding and locking of the sliding movement between the movable column 30 and the fixed column 40, further, a second clamping groove 312 is formed on the groove wall of the first clamping groove 311, a second protrusion 42 is correspondingly formed on the outer circumferential surface of the first protrusion 41, the second protrusion 42 is slidably connected in the second clamping groove 312 and can be locked with each other, and the guiding and locking of the sliding movement between the movable column 30 and the fixed column 40 can be realized through the sliding movement between the first clamping groove 311 and the first protrusion 41.

Specifically, the second clamping groove 312 includes a sliding groove 3121 and a clamping groove 3122 that are disposed perpendicular to each other, the sliding groove 3121 extends along the axial direction of the movable column 30, the second protrusion 42 is configured to slide along the sliding groove 3121 along with the sliding movement of the movable column 30 along the fixed column 40, and the second protrusion 42 is configured to slide in the clamping groove 3122 along with the rotation of the movable column 30, so as to lock the movable column 30 and the fixed column 40 with each other. That is, when the two limiting brackets 20 are close to each other and fixed, the movable post 30 and the fixed post 40 can be close to each other, so that the first protrusion 41 slides in the first clamping groove 311, the second protrusion 42 slides in the sliding groove 3121, and when the second protrusion 42 slides to the bottom of the sliding groove 3121, the movable post 30 is rotated, so that the second protrusion 42 slides in the clamping groove 3122, and the movable post 30 and the fixed post 40 can be locked, thereby realizing the fixed connection of the two limiting brackets 20.

In order to realize the rotation connection between the movable column 30 and the spacing bracket 20, further, as shown in fig. 5, the movable column 30 includes a column 31, a column cap 32 and a spacing ring 33, the column cap 32 is disposed at one end of the column 31, the spacing ring 33 and the column cap 32 are disposed at intervals to form a loop connection portion, the spacing bracket 20 is provided with a via hole 22, the loop connection portion is rotatably disposed at the via hole 22, the spacing ring 33 and the column cap 32 can limit the movable column 30 in the Z direction, and the loop connection portion is rotatably connected to the via hole 22 to realize the rotation connection between the movable column 30 and the spacing bracket 20.

Specifically, the stop collar 33 is detachably connected to the post 31, or the post cap 32 is detachably connected to the main body, so that the movable post 30 and the stop bracket 20 can be mounted.

Optionally, the two ends of the via hole 22 are further provided with a step part 23 for placing the cap 32 and the stop collar 33.

Further alternatively, the third clamping groove 321 is formed on the post cap 32, the third clamping groove 321 is used for being connected with an external tool in a matching way, the third clamping groove 321 is connected with the external tool through a screwdriver or other external tools, and the rotation of the movable post 30 can be controlled by rotating the external tool.

Still further, as shown in fig. 3 and 6, the movable post 30 is provided with a through hole 34 extending along the axial direction thereof, the fixed post 40 is provided with a threaded hole 43, and the fastener 50 passes through the through hole 34 and is in threaded connection with the threaded hole 43, so that the fastener 50 can fasten the movable post 30 and the fixed post 40, and the connection stability between the two limiting brackets 20 is improved.

In this embodiment, as shown in fig. 2, the above-mentioned spacing brackets 20 are provided with a plurality of mounting slots 21, the battery pack 10 includes a plurality of battery cells 11, the mounting slots 21 are arranged in one-to-one correspondence with the battery cells 11 of the battery pack 10, the battery cells 11 are axially and limitedly arranged in the mounting slots 21 of the two spacing brackets 20 along the battery cells 11, and the arrangement of the mounting slots 21 is used for limitedly mounting the battery cells 11, so that the battery cells 11 can be limitedly fixed by the two spacing brackets 20.

Further, one side of the limiting support 20 far away from the movable column 30 or the fixed column 40 is provided with a plurality of limiting pieces 60, each limiting support 20 on the periphery of each mounting groove 21 is provided with at least two limiting pieces 60, each limiting piece 60 can be abutted to two sides of the corresponding electric core 11 along the axial direction of the corresponding electric core 11, limiting of the corresponding electric core 11 in the axial direction can be achieved, the phenomenon that the electric core 11 jumps in the axial direction of the corresponding electric core 11 is avoided, and further the fact that a connecting piece connected with the corresponding electric core 11 cannot be broken is guaranteed.

The embodiment also provides an electricity consumption device, which includes the battery module according to any one of the above schemes, and includes all technical effects of the above battery module, and is not described here again. The power consumption device may be a battery pack, a vehicle, a ship, or the like using the battery module, for example.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The battery module, its characterized in that includes:

a battery pack (10);

the battery pack (10) is arranged between the two limiting brackets (20) in a limiting mode, one of the two limiting brackets (20) is rotatably provided with a plurality of movable columns (30), the other limiting bracket is provided with a plurality of fixed columns (40) in one-to-one correspondence, and the movable columns (30) and the fixed columns (40) are connected in a sliding mode and can be locked with each other;

the fasteners (50) are arranged in one-to-one correspondence with the movable columns (30), and the fasteners (50) are arranged in the movable columns (30) in a penetrating mode and are in threaded connection with the fixed columns (40).

2. The battery module according to claim 1, wherein a first clamping groove (311) is formed in one end of the movable column (30) facing the fixed column (40), a first protrusion (41) is formed in one end of the fixed column (40) facing the movable column (30), and the first clamping groove (311) and the first protrusion (41) are connected in a matched mode and can be locked with each other.

3. The battery module according to claim 2, wherein the groove wall of the first clamping groove (311) is provided with a second clamping groove (312), the outer circumferential surface of the first protrusion (41) is correspondingly provided with a second protrusion (42), and the second protrusion (42) is slidably connected in the second clamping groove (312) and can be mutually locked.

4. A battery module according to claim 3, wherein the second clamping groove (312) includes a sliding groove (3121) and a clamping groove (3122) that are disposed perpendicular to each other, the sliding groove (3121) is disposed extending in an axial direction of the movable column (30), the second protrusion (42) is configured to slide along the sliding groove (3121) with a sliding movement of the movable column (30) along the fixed column (40), and the second protrusion (42) is configured to slide in the clamping groove (3122) with a rotating movement of the movable column (30) so as to lock the movable column (30) and the fixed column (40) to each other.

5. The battery module according to any one of claims 1 to 4, wherein the movable column (30) comprises a column body (31), a column cap (32) and a limiting ring (33), the column cap (32) is disposed at one end of the column body (31), the limiting ring (33) and the column cap (32) are disposed at intervals to form a loop connection portion, the limiting bracket (20) is provided with a via hole (22), and the loop connection portion is rotatably disposed at the via hole (22).

6. The battery module according to claim 5, wherein a third clamping groove (321) is formed in the post cap (32), and the third clamping groove (321) is used for being connected with an external tool in a matching manner.

7. The battery module according to any one of claims 1 to 4, wherein the movable post (30) is provided with a through hole (34) extending in the axial direction thereof, the fixed post (40) is provided with a threaded hole (43), and the fastener (50) passes through the through hole (34) and is screwed with the threaded hole (43).

8. The battery module according to any one of claims 1-4, wherein the limiting bracket (20) is provided with a plurality of mounting grooves (21), the battery pack (10) comprises a plurality of electric cells (11), the mounting grooves (21) are arranged in one-to-one correspondence with the electric cells (11) of the battery pack (10), and the electric cells (11) are limited in the mounting grooves (21) of the two limiting brackets (20) along the axial direction of the battery pack.

9. The battery module according to claim 8, wherein a plurality of limiting members (60) are disposed on one side of the limiting support (20) away from the movable column (30) or the fixed column (40), at least two limiting members (60) are disposed on the limiting support (20) on the periphery of each mounting groove (21), and the limiting members (60) can be abutted to two sides of the battery cell (11) along the axial direction of the battery cell.

10. An electrical device comprising a battery module according to any one of claims 1-9.