CN221304849U

CN221304849U - Battery module for rapidly assembling and disassembling power core

Info

Publication number: CN221304849U
Application number: CN202322992456.8U
Authority: CN
Inventors: 王杰钢; 刘州杰; 许泽润
Original assignee: Wuhan Weilan New Energy Technology Co ltd
Current assignee: Wuhan Weilan New Energy Technology Co ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-07-09
Anticipated expiration: 2033-11-03

Abstract

The utility model provides a battery module for rapidly assembling a power core, and relates to the technical field of lithium battery assembly, comprising at least two circuit boards, a plurality of fasteners and a plurality of power cores; wherein, two circuit boards are arranged in parallel at intervals, and each circuit board is provided with a plurality of connecting holes; the plurality of battery cores are clamped between the two circuit boards, and the opposite ends of each battery core are respectively and correspondingly arranged with the two connecting holes one by one; each fastener is detachably connected with one end of one cell so as to mount one end of the cell at the corresponding connecting hole. One end of the battery cell can be fixed on one circuit board, so that the opposite ends of the battery cell can be fixed on the two circuit boards respectively through the fasteners, the battery cell is not required to be fixed through welding, the battery cell is installed or detached through tightening or loosening the fasteners, the operation is very convenient, and the battery cell can be quickly assembled.

Description

Battery module for rapidly assembling and disassembling power core

Technical Field

The utility model relates to the technical field of lithium battery assembly, in particular to a battery module for rapidly assembling a power core.

Background

At present, in order to meet the use requirement of long endurance of an electric vehicle, a plurality of electric cores are often required to be combined into a large-scale battery module, when a plurality of electric cores are assembled, the electric cores are required to be fixed through laser welding or electric soldering iron fusion welding, and further, a plastic bracket is required to be adopted for supporting the electric cores.

Chinese patent CN206849965U discloses a lithium battery module, and it includes a plurality of electric core, a plurality of nickel strap and battery support, and the battery support adopts plastics material to make, and a plurality of electric core are fixed in on the battery support respectively to every nickel strap connects electric core and circuit board respectively, and wherein the nickel strap welds with electric core and circuit board respectively.

However, after a plurality of battery cells are fixed through the structure, if the battery cells need to be disassembled and maintained in the later period, the battery cells are inconvenient to disassemble, and the defects of poor welding spots, welding running, low production efficiency and the like exist in welding.

Disclosure of utility model

In view of the above, the present utility model provides a battery module for rapidly assembling and disassembling battery cells, which solves the problem that the battery cells are inconvenient to assemble and disassemble when a plurality of battery cells are assembled into the battery module.

The technical scheme of the utility model is realized as follows:

the utility model provides a battery module for rapidly assembling a power core, which comprises at least two circuit boards, a plurality of fasteners and a plurality of power cores;

wherein, two said circuit boards are arranged in parallel and interval, there are multiple connecting holes on each said circuit board;

The plurality of battery cores are clamped between the two circuit boards, and the opposite ends of each battery core are respectively and correspondingly arranged with the two connecting holes one by one;

Each fastener is detachably connected with one end of one electric core, so that one end of the electric core is installed at the corresponding connecting hole.

On the basis of the above technical solution, preferably, the plurality of connection holes are arranged in a row at intervals along the first direction, the plurality of rows of connection holes are arranged in a column at intervals along the second direction, and the first direction and the second direction are intersected.

On the basis of the technical scheme, preferably, the fastening piece is a bolt or a nut, and a plurality of fastening pieces are composed of a plurality of bolts and/or a plurality of nuts.

On the basis of the technical scheme, preferably, the opposite ends of the battery core are respectively provided with a pole screw and/or a pole nut;

If one end of the battery core is provided with the pole screw, the pole screw is inserted into the corresponding connecting hole, and the nut is in threaded fit with the pole screw;

If one end of the battery core is provided with the pole nut, the pole nut and the corresponding connecting hole are oppositely arranged, and the bolt penetrates through the connecting hole and is in threaded fit with the pole nut.

On the basis of the above technical scheme, preferably, the battery module comprises three circuit boards, wherein the three circuit boards are sequentially arranged at intervals in parallel, a plurality of battery cells are respectively clamped between every two adjacent circuit boards, the opposite ends of each battery cell are respectively provided with a pole screw and a pole nut, and in the direction perpendicular to the circuit boards, in the two opposite battery cells, the pole nut of one battery cell is in threaded fit with the pole screw of the other battery cell.

On the basis of the above technical scheme, preferably, the terminal screw and the terminal nut on the battery cell are coaxially arranged.

On the basis of the above technical scheme, preferably, the battery module further comprises a shell and a cover body, the circuit board and the battery cell are both arranged in the shell, and the cover body covers the opening end of the shell.

On the basis of the above technical scheme, preferably, the battery module further comprises a BMS plate, and the BMS plate is electrically connected with the battery cell.

On the basis of the above technical scheme, preferably, the battery module further comprises an insulating plate, and the insulating plate is arranged between the circuit board and the BMS board.

On the basis of the technical scheme, preferably, the circuit board is used for connecting a plurality of battery cells in series or in parallel.

Compared with the prior art, the battery module for rapidly assembling the power core has the following beneficial effects:

(1) Through setting up at least two circuit boards, and press from both sides a plurality of electric core between two circuit boards, be equipped with a plurality of connecting holes on the circuit board, the opposite ends of electric core respectively with two connecting holes one-to-one setting, can be through the detachable connection of every fastener and one end of an electric core, thereby install the one end of electric core in corresponding connecting hole department, can be fixed in one circuit board with the one end of electric core, thereby can be fixed in two circuit boards respectively with the opposite ends of electric core through the fastener, need not to fix the electric core through welding, but install or dismantle the electric core through screwing up or unscrewing the fastener, and can fast install the electric core;

(2) The circuit board that sets up can play the effect of support, need not to additionally set up the fixed electric core of plastics support, can save the material, improves assembly efficiency.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded view of a battery module for quick assembly of a battery cell according to the present utility model;

fig. 2 is a perspective view of a battery module for quick assembly of a battery cell according to the present utility model;

Fig. 3 is a sectional view of a battery module for quick assembly of a battery cell according to the present utility model;

Fig. 4 is a partial sectional view of a battery module for quick assembly of a battery cell according to the present utility model;

fig. 5 is a perspective view of a battery cell according to the present utility model;

Fig. 6 is a schematic structural diagram of a circuit board according to the present utility model.

Reference numerals:

1. A circuit board; 11. a connection hole; 2. a fastener; 21. a bolt; 22. a nut; 3. a battery cell; 31. a post screw; 32. a post nut; 4. a housing; 5. a cover body; 6. BMS board; 7. an insulating plate.

Detailed Description

The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1, 2 and 6, a battery module for quick assembly of a battery cell 3 of the present utility model includes at least two circuit boards 1, a plurality of fasteners 2, and a plurality of battery cells 3;

wherein, two circuit boards 1 are arranged in parallel at intervals, and each circuit board 1 is provided with a plurality of connecting holes 11;

the plurality of battery cells 3 are clamped between the two circuit boards 1, and the opposite ends of each battery cell 3 are respectively arranged in one-to-one correspondence with the two connecting holes 11;

Each of the fasteners 2 is detachably connected to one end of one of the battery cells 3 to mount one end of the battery cell 3 at the corresponding connection hole 11.

Specifically, a battery module for rapidly assembling the power core 3 may include at least two circuit boards 1, a plurality of fasteners 2 and a plurality of power cores 3, the two circuit boards 1 may be disposed at parallel intervals, a plurality of connection holes 11 may be disposed on each circuit board 1, and the connection holes 11 on the two circuit boards 1 may be disposed in one-to-one correspondence, and more specifically, the connection holes 11 on the two circuit boards 1 are disposed coaxially in one-to-one correspondence.

The electric core 3 can be the cylinder structure, and a plurality of electric cores 3 can press from both sides and locate between two circuit boards 1, and the relative both ends of every electric core 3 can set up with two connecting hole 11 one-to-one respectively, and more clearly, the relative both ends of electric core 3 can set up towards two circuit boards 1 respectively to the relative both ends of electric core 3 are just to setting up with connecting hole 11 on two circuit boards 1 respectively.

The opposite ends of a plurality of battery cells 3 can be respectively arranged at the plurality of fasteners 2, each fastener 2 can be detachably connected with one end of one battery cell 3, so that one end of the battery cell 3 is installed at the corresponding connecting hole 11, one end of the battery cell 3 is fixed on one circuit board 1, the opposite ends of the battery cell 3 can be respectively fixed on two circuit boards 1 through the fasteners 2, the battery cell 3 is not required to be fixed through welding, the battery cell 3 is installed or detached through tightening or loosening the fasteners 2, the operation is convenient, the battery cell 3 can be quickly assembled, the circuit board 1 can play a role of a bracket, the battery cell 3 is not required to be fixed through an additional plastic bracket, and materials can be saved.

As shown in fig. 1, in some embodiments, a plurality of the connection holes 11 are arranged in a row at intervals along a first direction, and a plurality of the connection holes 11 are arranged in a column at intervals along a second direction, the first direction and the second direction intersecting each other.

Specifically, the plurality of connection holes 11 are arranged in a row at intervals along the first direction, the plurality of rows of connection holes 11 are arranged in a column at intervals along the second direction, the first direction and the second direction are intersected, the X-axis direction in fig. 1 is the first direction, the Y-axis direction is the second direction, that is, the plurality of connection holes 11 on the circuit boards 1 are arranged in an array, so that a plurality of electric cores 3 clamped between two adjacent circuit boards 1 are also arranged in an array, and a greater number of electric cores 3 can be assembled.

As shown in fig. 3 and 4, in some embodiments, the fastener 2 is a bolt 21 or a nut 22, and a plurality of the fasteners 2 are composed of a plurality of the bolts 21 and/or a plurality of the nuts 22.

Specifically, the fastening member 2 may be a bolt 21 or a nut 22, wherein a plurality of fastening members 2 may be composed of a plurality of bolts 21, and the battery cell 3 is fixed to the circuit board 1 by inserting the bolts 21 into the connection holes 11 and connecting with one end of the battery cell 3.

The plurality of fasteners 2 may also be composed of a plurality of nuts 22, one end of the battery cell 3 is disposed opposite to the connection hole 11, and one end portion of the battery cell 3 is disposed through the connection hole 11, so that the battery cell 3 is fixed on the circuit board 1 by screwing the nuts 22 and one end of the battery cell 3.

The fasteners 2 may also be composed of a plurality of bolts 21 and a plurality of nuts 22, so that the battery cell 3 may be conveniently fixed on the circuit board 1.

As shown in fig. 3 to 5, in some embodiments, the opposite ends of the battery cell 3 are respectively provided with a post screw 31 and/or a post nut 32;

If the terminal screw 31 is disposed at one end of the battery core 3, the terminal screw 31 is inserted into the corresponding connection hole 11, and the nut 22 is in threaded fit with the terminal screw 31;

If the terminal nut 32 is disposed at one end of the battery core 3, the terminal nut 32 is disposed opposite to the corresponding connection hole 11, and the bolt 21 is inserted into the connection hole 11 and is in threaded engagement with the terminal nut 32.

Specifically, in this embodiment, the end of the battery cell 3 may have three structural forms, where the first structural form is that two opposite ends of the battery cell 3 may be respectively provided with a post screw 31, the post screw 31 is inserted into the corresponding connection hole 11, and the nut 22 and the post screw 31 may be screwed together, and more clearly, the battery cell 3 may be fixed on the circuit board 1 by screwing the nut 22, or the battery cell 3 may be detached from the circuit board 1 by unscrewing the nut 22.

The second structural style is, the opposite both ends of electric core 3 can be equipped with utmost point post nut 32 respectively, can be equipped with on the utmost point post nut 32 with the coaxial screw hole that sets up of corresponding connecting hole 11, bolt 21 can wear to locate connecting hole 11 and screw hole, bolt 21 and screw hole threaded connection, the rethread is screwed down bolt 21 for electric core 3 is fixed in on the circuit board 1, also can be through unscrewing bolt 21, makes electric core 3 break away from on the circuit board 1.

The third structural style is, the opposite both ends of electric core 3 can be equipped with utmost point post screw 31 and utmost point post nut 32 respectively, and utmost point post screw 31 inserts and locates corresponding connecting hole 11, and utmost point post nut 32 and the coaxial setting of corresponding connecting hole 11 screw down nut 22 on utmost point post screw 31, inserts bolt 21 in the utmost point post nut 32 for electric core 3's opposite both ends are fixed in respectively on two circuit boards 1, thereby can design electric core 3's end structure according to actual conditions, conveniently assemble electric core 3 between two circuit boards 1.

As shown in fig. 3 to 5, in some embodiments, the circuit boards 1 are sequentially arranged at intervals in parallel, a plurality of the battery cells 3 are respectively arranged between every two adjacent circuit boards 1, the pole screw 31 and the pole nut 32 are respectively arranged at two opposite ends of the battery cells 3, and in the direction perpendicular to the circuit boards 1, the pole nut 32 of one battery cell 3 and the pole screw 31 of the other battery cell 3 are in threaded fit in the two opposite battery cells 3.

Specifically, in this embodiment, three circuit boards 1 may be included, the three circuit boards 1 may be sequentially arranged at intervals in parallel, and a plurality of electric cores 3 may be sandwiched between every two adjacent circuit boards 1, for convenience of description, the three circuit boards 1 are respectively defined as a first circuit board 1, a second circuit board 1 and a third circuit board 1, a first group of electric cores 3 is sandwiched between the first circuit board 1 and the second circuit board 1, and a second group of electric cores 3 is also sandwiched between the second circuit board 1 and the third circuit board 1.

Opposite ends of the battery core 3 can be provided with a pole screw 31 and a pole nut 32 respectively, along the direction perpendicular to the circuit board 1, the Z-axis direction in fig. 1 is the direction perpendicular to the circuit board 1, one end of the first group of battery cores 3, which is provided with the pole screw 31, can be arranged towards the second group of battery cores 3, one end of the second group of battery cores 3, which is provided with the pole nut 32, can be arranged towards the first group of battery cores 3, and the pole screw 31 of the first group of battery cores 3 can be mutually matched with the pole nut 32 of the second group of battery cores 3, namely, the pole screw 31 of the first group of battery cores 3 can be inserted into the connecting hole 11 on the second circuit board 1, and inserted into the pole nut 32 of the second group of battery cores 3, so that the first group of battery cores 3 and the second group of battery cores 3 are mutually connected, and the plurality of battery cores 3 can be fixed more firmly. And when more groups of the battery cells 3 need to be assembled, the number of the circuit boards 1 can be increased, so that more groups of the battery cells 3 can be clamped by the plurality of circuit boards 1.

As shown in fig. 5, in some embodiments, the post screw 31 and the post nut 32 on the cell 3 are coaxially disposed.

Specifically, the post screw 31 and the post nut 32 on the same electric core 3 can be coaxially arranged, so that two adjacent electric cores 3 arranged along the direction vertical to the circuit board 1 can be oppositely arranged, and the electric cores 3 can be conveniently assembled.

As shown in fig. 1 and 2, in some embodiments, the battery module further includes a housing 4 and a cover 5, the circuit board 1 and the battery cells 3 are disposed inside the housing 4, and the cover 5 covers the open end of the housing 4.

Specifically, the battery module may further include a housing 4 and a cover 5, in this embodiment, the housing 4 has a rectangular structure, the housing 4 has an open end, the circuit board 1 and the battery cell 3 may be assembled together and then placed in the housing 4, and the cover 5 may cover the open end of the housing 4.

As shown in fig. 1, in some embodiments, the battery module further includes a BMS board 6, and the BMS board 6 is electrically connected to the battery cells 3.

Specifically, the battery module can also include BMS board 6, and BMS board 6 is battery management system, and BMS board 6 can with electric core 3 electric connection, BMS board 6 can play control and protect battery module's effect.

As shown in fig. 1, in some embodiments, the battery module further includes an insulating plate 7, and the insulating plate 7 is disposed between the circuit board 1 and the BMS board 6.

Specifically, the battery module may further include an insulating plate 7, the insulating plate 7 may be an epoxy plate, the insulating plate 7 may be disposed between the circuit board 1 and the BMS board 6, the insulating plate 7 may play an insulating role, and the BMS board 6 may be protected.

As shown in fig. 1 and 5, in some embodiments, the circuit board 1 is used to connect a plurality of the battery cells 3 in series or in parallel.

Specifically, in this embodiment, copper may be coated on the circuit board 1, and a plurality of connection holes 11 are provided on the circuit board 1, and the positive electrode or the negative electrode of the battery cell 3 may be connected to the circuit board 1, and a plurality of battery cells 3 may be connected in series or in parallel through the circuit board 1.

When the battery module for rapidly assembling the battery core 3 is used, a plurality of battery cores 3 can be arranged between two circuit boards 1, opposite ends of the battery cores 3 are respectively arranged in one-to-one correspondence with connecting holes 11 on the two circuit boards 1, one end of each battery core 3 is installed at the corresponding connecting hole 11 through detachable connection of a fastener 2 and one end of each battery core 3, so that the opposite ends of each battery core 3 can be respectively installed on the two circuit boards 1, the battery core 3 can be assembled between the two circuit boards 1, the battery core 3 is not required to be fixed through welding, the battery core 3 is installed or detached through screwing or unscrewing the fastener 2, the operation is convenient, and the battery core 3 can be rapidly assembled.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A battery module for rapidly assembling and disassembling a power core is characterized in that: comprises at least two circuit boards (1), a plurality of fasteners (2) and a plurality of electric cores (3);

wherein, two circuit boards (1) are arranged in parallel at intervals, and each circuit board (1) is provided with a plurality of connecting holes (11);

The plurality of electric cores (3) are clamped between the two circuit boards (1), and the opposite ends of each electric core (3) are respectively arranged in one-to-one correspondence with the two connecting holes (11);

Each fastening piece (2) is detachably connected with one end of one electric core (3) so as to mount one end of the electric core (3) at the corresponding connecting hole (11).

2. The battery module according to claim 1, wherein: the plurality of connecting holes (11) are arranged in a row at intervals along a first direction, the plurality of rows of connecting holes (11) are arranged in a column at intervals along a second direction, and the first direction and the second direction are intersected.

3. The battery module according to claim 1, wherein: the fastening piece (2) is a bolt (21) or a nut (22), and a plurality of fastening pieces (2) are composed of a plurality of bolts (21) and/or a plurality of nuts (22).

4. The battery module according to claim 3, wherein: the opposite ends of the battery core (3) are respectively provided with a pole screw (31) and/or a pole nut (32);

If one end of the battery core (3) is provided with the pole screw (31), the pole screw (31) is inserted into the corresponding connecting hole (11), and the nut (22) is in threaded fit with the pole screw (31);

If one end of the battery core (3) is provided with the pole nut (32), the pole nut (32) is arranged opposite to the corresponding connecting hole (11), and the bolt (21) penetrates through the connecting hole (11) and is in threaded fit with the pole nut (32).

5. The battery module according to claim 4, wherein: including three circuit board (1), three circuit board (1) parallel interval sets up in proper order, every adjacent two all press from both sides between circuit board (1) is equipped with a plurality of electric core (3), the relative both ends of electric core (3) are equipped with respectively pole screw (31) with pole nut (32), along the direction of perpendicular to circuit board (1), in two of relative setting electric core (3), one pole nut (32) of electric core (3) and another pole screw (31) screw-thread fit of electric core (3).

6. The battery module according to claim 5, wherein: the pole screw (31) and the pole nut (32) on the battery cell (3) are coaxially arranged.

7. The battery module according to claim 1, wherein: still include casing (4) and lid (5), circuit board (1) with electric core (3) all set up in the inside of casing (4), lid (5) cover in the open end of casing (4).

8. The battery module according to claim 1, wherein: the battery cell also comprises a BMS plate (6), wherein the BMS plate (6) is electrically connected with the battery cell (3).

9. The battery module of claim 8, wherein: still include insulation board (7), insulation board (7) set up in between circuit board (1) with BMS board (6).

10. The battery module according to claim 1, wherein: the circuit board (1) is used for connecting a plurality of the battery cells (3) in series or in parallel.