CN216720217U

CN216720217U - Electric connection structure of lithium ion battery module

Info

Publication number: CN216720217U
Application number: CN202123298971.3U
Authority: CN
Inventors: 陆海军
Original assignee: Shenzhen Ampere Times Digital Energy Technology Co ltd
Current assignee: Shenzhen Ampere Times Digital Energy Technology Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-10
Anticipated expiration: 2031-12-24

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to an electric connection structure of a lithium ion battery module, which comprises a mounting box, an upper cover is arranged above the mounting box, a battery core is vertically arranged in the mounting box, a first electrode plate and a second electrode plate are respectively arranged at two ends of the battery core, the first electrode plate is arranged in the mounting box, an elastically telescopic connecting component is arranged between the second electrode plate and the battery core, when the upper cover is buckled on the mounting box, the utility model is provided with the upper cover, the mounting box, the first electrode plate, the second electrode plate and the connecting component, the battery core is arranged in the mounting box, the upper cover is buckled on the mounting box, the second electrode plate is connected on the battery core through the connecting component, when the upper cover is buckled on the mounting box, the connecting assembly elastically stretches between the second electrode plate and the battery core, and the upper cover only needs to be disassembled after the battery core is damaged.

Description

Electric connection structure of lithium ion battery module

Technical Field

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to an electric connection structure of a lithium ion battery module.

Background

A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material.

Electric core all is formed by ultrasonic bonding among the lithium ion battery module, and electric core demolishs the step loaded down with trivial details after electric core damages, is unfavorable for the quick maintenance of battery module, and current battery module fixes through the sticky tape when the equipment simultaneously, and can lead to the thickness of battery module inhomogeneous when the winding sticky tape, can lead to the battery package to warp when packing good battery module into the battery package.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric connection structure of a lithium ion battery module, which aims to solve the problems that the battery cell dismantling step is complicated after the battery cell is damaged, the quick maintenance of the battery module is not facilitated, and the battery module is fixed through an adhesive tape, so that the thickness of the battery module is uneven.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electric connection structure of lithium ion battery module, includes the mounting box, the top of mounting box is equipped with the upper cover, the inside of mounting box is equipped with the battery core perpendicularly, the both ends of battery core are equipped with first plate electrode and second plate electrode respectively, the inside at the mounting box is established to first plate electrode, but be equipped with elastic expansion's coupling assembling between second plate electrode and the battery core, when the upper cover is detained on the mounting box, coupling assembling is compressed, thereby it is convenient battery core and second plate electrode electric connection.

Preferably, the limiting groove has all been seted up around the upper cover top, the mounting box bottom all is equipped with the connecting piece of column structure all around, the outside salient of connecting piece is equipped with the bulge loop of annular structure, the annular has been seted up on the inner wall of limiting groove, bulge loop and annular clearance fit.

Preferably, coupling assembling includes the spring holder and can be on the spring holder flexible contact, the one end of spring holder is fixed to be established on the second electrode board, the one end of contact is supported on the battery core, the inside of spring holder is equipped with compression spring, compression spring's one end is supported on the contact, the contact is flat bullet nose structure.

Preferably, two symmetrical sides of the bottom of the upper cover are provided with two clamping pieces, two symmetrical sides of the top of the mounting box are provided with clamping grooves, the clamping pieces are correspondingly clamped in the clamping grooves, and the clamping pieces and the clamping grooves are of L-shaped structures.

Preferably, the bottom of the mounting box is provided with a thread groove, and one end of the connecting piece is screwed in the thread groove.

Preferably, the mounting box is provided with a mounting groove vertically inside, the battery core is arranged inside the mounting groove, the first electrode plate is provided with a protruding block in a protruding manner, and one end of the protruding block extends to the bottom inside the mounting groove.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the battery core is arranged in the mounting box, the upper cover is buckled on the mounting box, the second electrode plate is connected to the battery core through the connecting component, the connecting component elastically stretches between the second electrode plate and the battery core when the upper cover is buckled on the mounting box, and the upper cover can be disassembled only after the battery core is damaged.

(2) The battery pack is provided with the connecting piece and the limiting groove which are positioned on the upper cover and the mounting boxes and can be matched with each other, when a plurality of mounting boxes are stacked together, one end of the connecting piece is clamped into the limiting groove, two adjacent battery modules are combined together through the convex ring and the ring groove, the thickness of the battery modules cannot be increased, and the battery pack cannot be deformed when the battery modules which are connected together are placed into the battery pack.

Drawings

FIG. 1 is a schematic view of a partial structure of the present invention;

FIG. 2 is a schematic structural view of a contact and an upper cover according to the present invention;

FIG. 3 is a top view of the mounting box of the present invention;

FIG. 4 is a schematic view of the mating of the contact and spring seat of the present invention;

in the figure: 1. an upper cover; 2. a card slot; 3. a fastener; 4. a battery cell; 5. mounting grooves; 6. mounting a box; 7. a thread groove; 8. a connecting member; 9. a first electrode plate; 10. a contact; 11. a spring seat; 12. a second electrode plate; 13. a limiting groove; 14. a compression spring; 15. a convex ring.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an electric connection structure of lithium ion battery module, including mounting box 6, the top of mounting box 6 is equipped with upper cover 1, the inside of mounting box 6 is equipped with battery core 4 perpendicularly, the both ends of battery core 4 are equipped with first plate electrode 9 and second plate electrode 12 respectively, first plate electrode 9 is established in the inside of mounting box 6, but be equipped with elastic telescopic's coupling assembling between second plate electrode 12 and the battery core 4, when upper cover 1 detains on mounting box 6, coupling assembling is compressed, thereby make things convenient for battery core 4 and second plate electrode 12 electric connection.

Further, all seted up spacing groove 13 around 1 top of upper cover, 6 bottoms of mounting box all are equipped with column structure's connecting piece 8 all around, and the outside of connecting piece 8 is outstanding to be equipped with annular structure's bulge loop 15, has seted up the annular on the inner wall of spacing groove 13, bulge loop 15 and annular clearance fit.

Specifically, the connecting assembly includes a spring seat 11 and a contact 10 capable of extending and retracting on the spring seat 11, one end of the spring seat 11 is fixedly arranged on the second electrode plate 12, one end of the contact 10 abuts against the battery cell 4, a compression spring 14 is arranged inside the spring seat 11, one end of the compression spring 14 abuts against the contact 10, and the contact 10 is of a flat bullet structure.

It is worth explaining that, the both sides of upper cover 1 bottom symmetry all are equipped with two fastener 3, and draw-in groove 2 has all been seted up to the both sides of mounting box 6 top symmetry, and fastener 3 corresponds the card in draw-in groove 2, and fastener 3 and draw-in groove 2 are L type structure, can be with upper cover 1 fastening on mounting box 6 through fastener 3 and draw-in groove 2, and the hook-like structure of fastener 3 is established in the outside of fastener 3, makes things convenient for upper cover 1 to break away from mounting box 6.

Further, thread groove 7 has been seted up to the bottom of mounting box 6, and the one end of connecting piece 8 closes soon to be established in thread groove 7, can take off unused connecting piece 8 from mounting box 6 through thread groove 7, and thread groove 7 can be in establishing five faces in the front, back, left and right and bottom at mounting box 6 simultaneously, makes things convenient for the battery module to assemble.

Further, mounting groove 5 has been seted up perpendicularly to the inside of mounting box 6, and battery core 4 is established in the inside of mounting groove 5, and the salient is equipped with the lug on the first electrode board 9, and the one end of lug extends to the inside bottom of mounting groove 5, makes things convenient for battery core 4 and first electrode board 9 electric connection through the lug.

The working principle and the using process of the utility model are as follows: when the battery pack is used, the battery core 4 is installed in the installation box 6 through the installation groove 5, the upper cover 1 is buckled at the top of the installation box 6, the upper cover 1 is pressed downwards, the clamping piece 3 enters the clamping groove 2 under pressure, the upper cover 1 is fastened on the installation box 6, in the process, the contact 10 contacts the battery core 4 and compresses the compression spring 14 towards the interior of the spring seat 11, and when the installed battery modules are stacked together, the connecting piece 8 is clamped in the limiting groove 13 through the convex ring 15 and the annular groove.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric connection structure of lithium ion battery module which characterized in that: including mounting box (6), the top of mounting box (6) is equipped with upper cover (1), the inside of mounting box (6) is equipped with battery core (4) perpendicularly, the both ends of battery core (4) are equipped with first plate electrode (9) and second plate electrode (12) respectively, but the inside at mounting box (6) is established in first plate electrode (9), but be equipped with elastic telescopic's coupling assembling between second plate electrode (12) and battery core (4), when upper cover (1) is detained on mounting box (6), coupling assembling is compressed, thereby it is convenient battery core (4) and second plate electrode (12) electric connection.

2. The electrical connection structure of a lithium ion battery module according to claim 1, characterized in that: spacing groove (13) have all been seted up all around at upper cover (1) top, mounting box (6) bottom all be equipped with connecting piece (8) of column structure all around, the outside salient of connecting piece (8) is equipped with bulge loop (15) of annular structure, the annular has been seted up on the inner wall of spacing groove (13), bulge loop (15) and annular clearance fit.

3. The electrical connection structure of a lithium ion battery module according to claim 1, characterized in that: coupling assembling includes spring holder (11) and can be on spring holder (11) flexible contact (10), the one end of spring holder (11) is fixed to be established on second electrode board (12), the one end of contact (10) is supported on battery core (4), the inside of spring holder (11) is equipped with compression spring (14), the one end of compression spring (14) is supported on contact (10), contact (10) are flat bullet nose structure.

4. The electrical connection structure of a lithium ion battery module according to claim 1, characterized in that: the clamping device is characterized in that two symmetrical sides of the bottom of the upper cover (1) are provided with two clamping pieces (3), clamping grooves (2) are formed in two symmetrical sides of the top of the mounting box (6), the clamping pieces (3) are correspondingly clamped in the clamping grooves (2), and the clamping pieces (3) and the clamping grooves (2) are of L-shaped structures.

5. The electrical connection structure of a lithium ion battery module according to claim 2, characterized in that: the bottom of the mounting box (6) is provided with a thread groove (7), and one end of the connecting piece (8) is screwed in the thread groove (7).

6. The electrical connection structure of a lithium ion battery module according to claim 1, characterized in that: mounting groove (5) have been seted up perpendicularly to the inside of mounting box (6), establish in the inside of mounting groove (5) battery core (4), the salient is equipped with the lug on first electrode board (9), the one end of lug extends to the inside bottom of mounting groove (5).