CN216015454U

CN216015454U - Battery module

Info

Publication number: CN216015454U
Application number: CN202122090997.2U
Authority: CN
Inventors: 李贤奎; 田辉辉
Original assignee: Shanghai Paizhi Energy Co ltd
Current assignee: Shanghai Paizhi Energy Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-11
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a battery module, battery module include that support, conductive part, electric core, first magnetism inhale subassembly and second magnetism and inhale the subassembly, conductive part is used for the intercommunication circuit, and on electric core was fixed in the support, on the subassembly was fixed in the support was inhaled to first magnetism, the subassembly was inhaled to the second magnetism was fixed in conductive part, and two magnetism inhale the mutual magnetism of subassembly and inhale to make conductive part electricity connect in electric core. Through fixed electric core and the first subassembly of inhaling on the support, utilize the magnetism of inhaling the subassembly to inhale the magnetic attraction each other, realize that conductive part is connected with electric core electricity. The battery core is electrically connected with the conductive part through magnetic attraction, compared with welding, welding equipment does not need to be purchased, parameters such as electric welding and the like do not need to be set, the connection consistency is high, and meanwhile, the battery core and the conductive part can be detached by adopting the magnetic attraction connection; in addition, the battery core can be dismantled on the battery module after using, if the electric core can continue to use, then improved the reuse's of electric core convenience, need not extra operation, do not have the potential safety hazard.

Description

Battery module

Technical Field

The utility model relates to a lithium cell module technical field, in particular to battery module.

Background

Lithium electronic battery modules are currently used in various industrial fields as a new generation of secondary battery modules. At present, each electric core forms different parallel-serial number battery modules through conductive parts according to the demand, and the fixing mode of the electric core and the conductive parts is mainly welding at present, and the mode has the following defects: spot welding equipment is expensive, poor problems such as insufficient solder and the like easily occur in the spot welding process, consistency is poor, welding errors cannot be corrected, good welding cells cannot be disassembled and reused, sparks and the like may occur in the welding process, and personal safety is damaged.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect of the welding mode of the electric core and the conductive part of the battery module in the prior art, the battery module is provided.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

the utility model provides a battery module, battery module includes that support, conductive part, a plurality of electric cores, first magnetism inhale the subassembly and the subassembly is inhaled to the second magnetism, conductive part is used for the intercommunication circuit, electric core is fixed in on the support, first magnetism inhale the subassembly be fixed in on the support, the subassembly is inhaled to the second magnetism is fixed in on the conductive part, first magnetism inhale the subassembly with the subassembly is inhaled to the second magnetism each other magnetism, so that conductive part electricity connect in electric core.

In this scheme, inhale tight conductive part and support through fixed electric core and first magnetism subassembly of inhaling on the support, utilize magnetism of magnetism subassembly of inhaling, realize that conductive part and electric core are connected. The electric core and the conductive part are electrically connected through the magnetic attraction, compared with the traditional welding, welding equipment does not need to be purchased, parameters such as electric welding and the like do not need to be additionally arranged, the connection consistency is high, the connection mode is simple, the operation is easy, meanwhile, the electric core and the conductive part can be freely detached through the magnetic attraction, and the change can be carried out even if the connection is wrong; in addition, the battery core can be dismantled on the battery module after using, if the electric core can continue to use, then improved the reuse's of electric core convenience, need not extra operation, do not have the potential safety hazard.

Preferably, the conductive member further includes a protrusion facing the battery cell and electrically connected to the battery cell.

In this scheme, through set up protruding structure on conductive parts, improved the reliability of the electric connection of conductive parts and electric core, the deformation of conductive parts can not appear because magnetism leads to conductive parts and electric core bad contact's phenomenon.

Preferably, the bracket is provided with an electrically conductive member mounting groove in which the electrically conductive member is disposed.

In this aspect, the electrically conductive member can be easily replaced by providing the electrically conductive member mounting groove on the holder such that the electrically conductive member is disposed in the electrically conductive member mounting groove while the electrically conductive member has a degree of freedom.

Preferably, the support is provided with a concave hole, and the first magnetic attraction component is fixed in the concave hole.

In this scheme, through setting up the shrinkage pool on the support, inhale the subassembly with first magnetism and be fixed in the shrinkage pool, first magnetism is inhaled the subassembly position and is fixed, can be so that magnetism inhale the magnetic attraction that produces in the subassembly and stabilize, and conductive part can not lead to with the electric connection bad contact of electric core influence electric core and conductive part's electric conductive property because the change of magnetic attraction.

Preferably, the first magnetic component is abutted to or spaced from the second magnetic component.

In this scheme, first magnetism is inhaled subassembly and second magnetism and is inhaled the subassembly butt and realize electrically connected of conductive part and electric core, perhaps first magnetism inhale the subassembly with keep certain interval between the subassembly to realize electrically connected of conductive part and electric core is inhaled to the second magnetism.

Preferably, the first magnetic attraction component and the second magnetic attraction component include at least one of a magnet and an electromagnet.

In this scheme, first magnetism is inhaled subassembly and second magnetism and is inhaled the subassembly and can be magnet, also can be for electro-magnet or the two uses all can, all can provide stable and lasting magnetic attraction.

Preferably, the support is provided with a through hole and a limiting block, the battery cell is arranged in the through hole in a penetrating manner, and the limiting block is located at the end part of the through hole so as to limit axial movement of the battery cell.

In the scheme, the through hole and the limiting block are arranged on the support, and the battery cell is arranged in the through hole; the battery cell is relatively fixed on the support by the limiting block at the end part of the battery cell, so that the battery cell is prevented from moving to influence the electric connection relation between the battery cell and the conductive part.

Preferably, the stopper includes a convex portion extending from an inner sidewall of the through hole toward a center of the through hole in a radial direction.

In this scheme, through the limiting displacement of convex part, prevented that electric core from and then influencing its and conductive parts's guidance quality at its axial displacement.

Preferably, the support includes a support plate, the support plate is used for fixing the battery cell, the support plate further includes a fastener, and the fastener is used for fixing one support plate to the other support plate.

In this scheme, the support includes a plurality of backup pad, and a plurality of backup pad combined action is fixed electric core in the backup pad, through setting up the fastener, is fixed in another backup pad with one of them backup pad on, and the fastener makes overall structure more stable.

Preferably, the support plate further comprises a stepped hole, and the fastener comprises a screw and a nut, and the nut is screwed to the screw so that the head of the screw and the head of the nut are both located inside the stepped hole.

In the scheme, the stepped hole is formed in the supporting plate, and the screw and the nut are combined to be used as the fastener, so that the head of the screw and the head of the nut are both located inside the stepped hole, and the supporting plate is prevented from extending by the screw to influence the electric connection relation between the battery core and the conductive part.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in: through fixed electric core and the first magnetism subassembly of inhaling on the support, set up the second magnetism subassembly of inhaling on electrically conductive part, utilize first magnetism to inhale the magnetism of subassembly and second magnetism subassembly of inhaling tightly electrically conductive part and electric core, realize electrically conductive part and electric connection of electric core. The electric core and the conductive part are electrically connected through magnetic attraction, compared with the traditional welding, welding equipment does not need to be purchased, parameters such as electric welding and the like do not need to be additionally arranged, the consistency of connection is high, the connection mode is simple, the operation is easy, meanwhile, the electric core and the conductive part are freely disassembled by adopting the magnetic attraction to realize the electric connection, and the electric core and the conductive part can be freely changed even if the connection is wrong; if this kind of battery module is used useless, good electric core is dismantled conveniently, has improved the reuse's of electric core convenience, need not extra operation, does not have the potential safety hazard.

Drawings

Fig. 1 is a schematic perspective view of a battery module according to an embodiment of the present invention.

Fig. 2 is a schematic top view of a battery module according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the battery module shown in fig. 2 along the line a-a of the present invention.

Fig. 4 is a schematic diagram of a partially enlarged structure of the battery module of fig. 3 according to the present invention, in which the first magnetic component and the conductive component are magnetically connected to a position C.

Fig. 5 is the embodiment of the present invention provides a partially enlarged schematic structural diagram of the protrusion of the conductive component of the battery module fig. 3 and the electric core electrically connected at the position E.

Fig. 6 is a perspective view of the conductive member of the battery module of fig. 1 according to the embodiment of the present invention.

Description of reference numerals:

conductive member 1

Projection 11

First magnetic attraction component 2

Screw 3

Battery cell 4

Support 5

Supporting plate 50

Fastener 501

Stepped bore 502

Conductive member mounting groove 51

Recess 52

Through hole 53

Stopper 54

Convex portion 541

Nut 6

Battery module 7

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

The utility model provides a battery module 7, as shown in fig. 1, inhale the subassembly (not shown in the figure) including support 5, conductive part 1, a plurality of electric core 4, first magnetism, and the subassembly is inhaled to the second magnetism, conductive part 1 is used for the intercommunication circuit, and electric core 4 is fixed in on support 5, and first magnetism is inhaled the subassembly 2 and is fixed in on the support, and the subassembly is inhaled to the second magnetism on conductive part 1, and first magnetism is inhaled subassembly 2 magnetism and is inhaled the subassembly in the second magnetism to make conductive part 1 electricity connect in electric core 4.

Through fixed electricity core 4 and the first magnetism subassembly 2 of inhaling on support 5, set up the second magnetism subassembly of inhaling on electrically conductive part 1, utilize first magnetism to inhale subassembly 2 and the magnetism of second magnetism subassembly of inhaling tightly electrically conductive part 1 and electric core 4, realize that electrically conductive part 1 is connected with electricity core 4 electricity. The electric core 4 and the conductive part 1 are magnetically attracted to realize electric connection, compared with the traditional welding, welding equipment does not need to be purchased, parameters such as electric welding and the like do not need to be additionally arranged, the connection consistency is high, the connection mode is simple, the operation is easy, meanwhile, the magnetic attraction connection is adopted, the electric core 4 and the conductive part 1 can be freely modified, and the connection can be freely changed even if the connection is wrong; if this kind of battery module 7 is used useless, good electricity core 4 is dismantled conveniently, has improved the reuse's of electricity core 4 convenience, need not extra operation, does not have the potential safety hazard.

In this embodiment, as shown in fig. 1, the whole structure of conductive part 1 is the board type, there are a plurality of through-holes 53 in the middle, the array is constituteed to a plurality of electric cores 4, there is the clearance between first magnetism subassembly 2 of inhaling and conductive part 1, first magnetism subassembly 2 sets up to a plurality ofly, wherein there is the clearance between first magnetism subassembly 2 of inhaling and the second magnetism subassembly, the stability of conductive part 1 with electric 4 electricity connection has been guaranteed, the setting in clearance can prevent that conductive part 1 warp and influence local electric core 4 and conductive part 1's electricity and be connected, the setting of a plurality of first magnetism subassemblies 2 and a plurality of second magnetism subassembly has guaranteed the strong and stable of magnetic attraction, the stability of electric core 4 with conductive part 1 electricity connection has been guaranteed.

In a preferred embodiment, as shown in fig. 5, the conductive member 1 further includes a protrusion 11, the protrusion 11 faces the battery cell 4, and the protrusion 11 is electrically connected to the battery cell 4.

As shown in fig. 6, by providing the protrusion 11 on the conductive component 1, the reliability of the electrical connection between the conductive component 1 and the battery cell 4 is improved, and the phenomenon that the conductive component 1 is deformed due to magnetic attraction to cause poor contact between the conductive component 1 and the battery cell 4 does not occur.

In a preferred embodiment, as shown in fig. 2 and 3, the holder 5 is provided with an electrically conductive member mounting groove 51, and the electrically conductive member 1 is fitted into the electrically conductive member mounting groove 51 so that the electrically conductive member 1 can move freely relative to the holder 5.

The conductive member 1 can be easily replaced with a degree of freedom by providing the conductive member mounting groove 51 on the holder 5 so that the conductive member 1 is fitted into the conductive member mounting groove 51.

In a preferred embodiment, as shown in fig. 3, the bracket 5 is provided with a recess 52, and the first magnetic assembly 2 is fixed in the recess 52.

Through set up shrinkage pool 52 on support 5, inhale the subassembly 2 with first magnetism and be fixed in shrinkage pool 52 in, can let first magnetism inhale subassembly 2 and second magnetism inhale the magnetic attraction that the subassembly produced stable, electrically conductive part 1 can not lead to electrically conductive part 1 and electric connection contact failure of electric core 4 because the change of magnetic attraction, and the influence is electrically conductive.

In a preferred embodiment, as shown in fig. 4, the first magnetic attraction component 2 and the second magnetic attraction component include at least one of a magnet and an electromagnet.

First magnetism is inhaled subassembly 2 and second magnetism and is inhaled the subassembly and can be magnet, also can be for electro-magnet or both use equally, all can provide stable and lasting magnetic attraction, and magnet is adopted to this embodiment.

In a preferred embodiment, as shown in fig. 1, a through hole 53 and a limiting block 54 are provided on the support 5, the battery cell 4 is inserted into the through hole 53, and the limiting block 54 is located in the cavity of the through hole 53 to limit the axial position movement of the battery cell 4.

Through arranging the through hole 53 and the limiting block 54 on the bracket 5, the battery cell 4 is arranged in the through hole 53; and a limiting block 54 at the end part of the battery cell 4 enables the battery cell 4 to be relatively fixed on the bracket 5, so that the battery cell 4 is prevented from moving to influence the electrical connection relationship between the battery cell 4 and the conductive part 1.

In a preferred embodiment, as shown in fig. 1, the stopper 54 includes a protrusion 541, and the protrusion 541 extends from the inner sidewall of the through hole 53 toward the center of the through hole 53 in a radial direction.

By providing the stopper 54 as the projection 541, the battery cell 4 is prevented from moving in the axial direction thereof and affecting the guiding performance with the conductive member 1.

In a preferred embodiment, as shown in fig. 3, the support 5 includes a support plate 50, and the support plate 50 is used for fixing the battery cell 4.

The support 5 comprises a plurality of support plates 50, and the plurality of support plates 50 jointly fix the battery cell 4 on the support plates 50.

In a preferred embodiment, as shown in FIG. 3, the support plates 50 further include fasteners 501, the fasteners 501 being used to secure one support plate 50 to another support plate 50.

In this embodiment, by providing two supporting plates 50, the battery cell 4 is sandwiched between the two supporting plates 50, so that the number of the supporting plates 50 is reduced, the mass of the whole support 5 can be reduced, and the rigidity and reliability of the whole support 5 can be ensured.

By providing the fastening member 501 to fix one of the support plates 50 to the other support plate 50, the fastening member 501 makes the overall structure more stable.

In a preferred embodiment, as shown in fig. 3, the supporting plate 50 further includes a stepped hole 502, the fastener 501 includes a screw 503 and a nut 504, and the nut 504 is screwed on the screw 503 so that the head of the screw 503 and the head of the nut 504 are both located inside the stepped hole 502.

By providing the stepped hole 502 on the support plate 50, the screw 503 and the nut 504 are used in combination as the fastener 501, so that the head of the screw 503 and the head of the nut 504 are both located inside the stepped hole 502, preventing the screw 503 from elongating and affecting the electrical connection relationship between the battery cell 4 and the conductive member 1.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a battery module which characterized in that, battery module includes:

a support;

a conductive member for communicating with an electrical circuit;

the battery cells are fixed on the bracket;

the magnetic attraction device comprises a first magnetic attraction component and a second magnetic attraction component, wherein the first magnetic attraction component is fixed on the support, the second magnetic attraction component is fixed on the conductive part, and the first magnetic attraction component and the second magnetic attraction component are magnetically attracted with each other so that the conductive part is electrically connected to the battery core.

2. The battery module of claim 1, wherein the conductive member further comprises a protrusion facing the cell and electrically connected to the cell.

3. The battery module according to claim 1, wherein the holder is provided with a conductive member mounting groove in which the conductive member is disposed.

4. The battery module of claim 1, wherein the bracket is provided with a recess, and the first magnetic component is fixed in the recess.

5. The battery module of claim 1, wherein the first magnetic component abuts against or is spaced apart from the second magnetic component.

6. The battery module of claim 1, wherein the first and second magnetically attractive components comprise at least one of a magnet and an electromagnet.

7. The battery module of claim 1, wherein the bracket is provided with a through hole through which the battery cell is inserted and a stopper located at an end of the through hole to limit axial movement of the battery cell.

8. The battery module according to claim 7, wherein the stopper includes a protrusion extending from an inner sidewall of the through-hole toward a center of the through-hole in a radial direction.

9. The battery module of claim 1, wherein the bracket further comprises a plurality of support plates and fasteners for securing one of the support plates to another of the support plates.

10. The battery module according to claim 9, wherein the support plate further comprises a stepped hole, and the fastener comprises a screw and a nut that is screwed to the screw such that a head of the screw and a head of the nut are both located inside the stepped hole.