Parallel lithium battery module

Abstract

The utility model provides a parallel lithium battery module, which relates to the technical field of battery modules and comprises a frame, and a plurality of lithium batteries are bundled together by the frame to form a lithium battery pack. The parallel end is welded and fixed between two adjacent lithium batteries of the lithium battery pack and is used for electrically connecting the plurality of lithium batteries; the protective shell is used for protecting the framework and the lithium battery pack by wrapping the framework and the lithium battery pack; the filling assembly is detachably installed between the frame and the protective shell, the gap between the frame and the protective shell can be filled through the filling assembly, and the situation that the frame and the battery pack shake in the using process due to the fact that the gap exists between the frame and the protective shell after the frame is placed in the protective shell is reduced; therefore, the use stability of the frame and the battery pack is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery module technology, and in particular to a parallel lithium battery module. Background Technology

[0002] A lithium battery is a type of battery that works by storing and releasing energy by moving lithium batteries between positive and negative electrodes. Lithium batteries rely on the process of inserting and de-inserting cations to charge and discharge. A combination of multiple lithium battery packs connected in parallel and fixed together is called a parallel lithium battery module.

[0003] Existing parallel lithium battery modules use a frame to combine multiple lithium batteries together, then place the frame and multiple lithium batteries together in a protective casing, and then use parallel terminals to electrically connect the multiple lithium batteries. Subsequently, power is provided to external devices by connecting lines to the parallel terminals.

[0004] However, because there may be a certain gap between the frame and the protective shell when the frame is placed inside, the frame and the battery pack may shake during use, causing the connection between the wiring and the parallel terminal to loosen and fall off, affecting the normal power supply of the battery pack. Utility Model Content

[0005] The technical problem this utility model aims to solve is that when the frame is placed inside the protective shell, there may be a certain gap between the two, causing the frame and the battery pack to shake during use, resulting in the connection between the circuit and the parallel terminal becoming loose and falling off, thus affecting the normal power supply of the battery pack.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a parallel lithium battery module, comprising: a frame, wherein multiple lithium batteries are bundled together to form a lithium battery pack; a parallel end, wherein the parallel end is welded and fixed between two adjacent lithium batteries in the lithium battery pack, thereby electrically connecting the multiple lithium batteries; a protective shell, wherein the protective shell protects the frame and the lithium battery pack by wrapping them; and a filling component, wherein the filling component is detachably installed between the frame and the protective shell, wherein the filling component fills the gap between the frame and the protective shell, thereby limiting and reinforcing the frame.

[0007] Preferably, the filling component includes: a base plate, which is detachably mounted on the frame via an assembly assembly; a top plate, on one side of which a telescopic rod is fixedly connected, wherein the other end of the telescopic rod is fixedly connected to the base plate; and a rubber pad, wherein the rubber pad is fixedly connected to the base plate and is placed between the base plate and the top plate and adheres to the surface of the top plate to fill the gap between them.

[0008] The effect achieved by the above-mentioned components is that: by arranging the filling assembly, firstly, the filling assembly is installed on the frame through the assembly assembly, and when the frame is inserted into the protective shell, the top plate is pressed against the inner wall of the protective shell, the top plate is moved towards the bottom plate, the top plate is pressed against the rubber pad, under the elastic deformation of the rubber pad, the rubber pad cooperates with the bottom plate to intercept the top plate, the top plate is pushed away from the frame, the top plate cooperates with the rubber pad to fill the gap between the frame and the protective shell, thereby achieving auxiliary limiting of the frame, reducing the gap between the frame and the protective shell after the frame is put into the protective shell, preventing the frame and the battery pack from shaking during use, preventing the connection between the circuit and the parallel end from loosening and falling off, and improving the use stability of the frame and the battery pack.

[0009] Preferably, the filling assembly further comprises: a roller, the roller is rotatably installed on the top plate through a circular shaft, wherein the surface of the roller is slightly higher than the top plate.

[0010] The effect achieved by the above-mentioned components is that: by arranging the roller, the roller can separate the surface of the top plate from the inner wall of the protective shell, and under the rotation of the roller, the friction and wear between the top plate and the protective shell are reduced.

[0011] Preferably, a slope is arranged at the edge of the top plate, wherein the surface of the top plate is arc-shaped.

[0012] The effect achieved by the above-mentioned components is that: by arranging the slope on the surface of the top plate, the top plate can be more smoothly inserted into the protective shell, reducing the insertion resistance between the top plate and the protective shell.

[0013] Preferably, the filling assembly further comprises: a through hole, the through hole is evenly arranged on the top plate, wherein the through hole penetrates the top plate.

[0014] The effect achieved by the above-mentioned components is that: by arranging the through hole, the impurities falling between the plurality of rollers can be discharged through the through hole, reducing the accumulation of impurities inside the top plate.

[0015] Preferably, the filling assembly further comprises: a reinforcing rib, wherein the reinforcing rib is fixedly connected to the bottom plate, and the reinforcing rib is made of metal.

[0016] The effect achieved by the above-mentioned components is that: by arranging the reinforcing rib, the reinforcing rib can increase the strength of the bottom plate, reducing the deformation or fracture of the bottom plate under stress.

[0017] Preferably, the assembly assembly comprises: a convex plate, the convex plate is fixedly connected to the bottom plate; a convex groove, the convex groove is arranged on the frame, wherein the convex plate and the convex groove are slidably connected, and are fixed by bolts.

[0018] The effects achieved by the above components are that: by arranging the assembly component, the bottom plate is first manually moved to drive the convex plate to move, when the convex plate moves to the inside of the convex groove, the bolt is screwed into the hole on the frame and the inside of the convex plate by a tool to fix the convex plate, so as to achieve the assembly and fixation between the filling component and the frame, and the filling component and the frame can be separated subsequently, the use flexibility and the maintenance convenience of the filling component are improved.

[0019] Preferably, the assembly component further comprises spherical blocks, wherein the spherical blocks are uniformly fixed on the convex plate.

[0020] The effects achieved by the above components are that: by arranging the spherical blocks, the spherical blocks can be inserted into the convex groove to extrude the inner wall and fill the gap between the convex plate and the convex groove, so as to reduce the shaking of the convex plate.

[0021] The beneficial effects of the utility model are:

[0022] By arranging the filling component, the gap between the frame and the protective shell can be filled, the gap between the frame and the protective shell after the frame is put into the protective shell is reduced, the shaking of the frame and the battery pack during use is avoided, the loosening and falling off of the connection between the line and the parallel end are avoided, and the use stability of the frame and the battery pack is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further described below in combination with the drawings and embodiments.

[0024] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0025] Figure 2 It is a three-dimensional structure schematic view of the drum of the utility model;

[0026] Figure 3 It is a three-dimensional structure schematic view of the bottom plate of the utility model;

[0027] Figure 4 It is a three-dimensional structure schematic view of the convex groove of the utility model.

[0028] Legend: 1, frame; 2, lithium battery pack; 3, parallel end; 4, protective shell; 5, filling component; 51, bottom plate; 52, telescopic rod; 53, top plate; 54, drum; 55, through hole; 56, reinforcing rib; 57, rubber pad; 6, assembly component; 61, convex groove; 62, convex plate; 63, bolt; 64, spherical block. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only the basic structure of the utility model is schematically shown, so it only shows the relevant components of the utility model.

[0030] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Figures 1-4 The utility model discloses a kind of parallel lithium battery module, comprising: frame 1, frame 1 is bundled together by multiple lithium batteries to form lithium battery group 2;Parallel end 3, parallel end 3 is welded and fixed between two adjacent lithium batteries of lithium battery group 2, electrically connected between multiple lithium batteries;Protective shell 4, protective shell 4 is wrapped to protect by frame 1 and lithium battery group 2;Filling assembly 5, filling assembly 5 is detachably installed between frame 1 and protective shell 4, wherein filling assembly 5 is filled by the gap between frame 1 and protective shell 4, and frame 1 is positioned and reinforced.

[0032] Figure 2 And Figure 3 The filling assembly 5 shown includes: bottom plate 51, the bottom plate 51 is detachably installed on the frame 1 by assembly component 6;Top plate 53, one side of top plate 53 is fixedly connected with telescopic rod 52, wherein the other end of telescopic rod 52 is fixedly connected with bottom plate 51;Rubber pad 57, wherein rubber pad 57 is fixedly connected on bottom plate 51, wherein rubber pad 57 is placed between bottom plate 51 and top plate 53 and is attached to the surface of top plate 53, and the gap between the two is filled, by setting filling assembly 5, first, filling assembly 5 is installed on frame 1 by assembly component 6, when frame 1 is inserted into protective shell 4, so that top plate 53 extrudes the inner wall of protective shell 4, so that top plate 53 moves towards bottom plate 51, so that top plate 53 extrudes rubber pad 57, under the elastic deformation of rubber pad 57, rubber pad 57 cooperates with bottom plate 51 to intercept top plate 53, and top plate 53 is pushed out in the direction away from frame 1, so that top plate 53 cooperates with rubber pad 57 to fill the gap between frame 1 and protective shell 4, so as to achieve the auxiliary positioning of frame 1, reduce the gap between frame 1 and protective shell 4 after frame 1 is put into protective shell 4, so that frame 1 and battery group are not shaken during use, and the connection between line and parallel end 3 is loosened and falls off, so as to improve the use stability of frame 1 and battery group.

[0033] Figure 2And Figure 3 The filling assembly 5 shown further comprises a roller 54 rotatably mounted on the top plate 53 by a round shaft, wherein the surface of the roller 54 is slightly higher than the top plate 53, by arranging the roller 54, the roller 54 can separate the surface of the top plate 53 from the inner wall of the protective shell 4, and under the action of the rotation of the roller 54, the friction and wear between the top plate 53 and the protective shell 4 are reduced, and the edge position of the top plate 53 is provided with a slope, wherein the surface slope of the top plate 53 is arc-shaped, by arranging the slope on the surface of the top plate 53, the top plate 53 can be more smoothly inserted into the protective shell 4, and the insertion resistance between the top plate 53 and the protective shell 4 is reduced.

[0034] Figure 2 And Figure 3 The filling assembly 5 shown further comprises a through hole 55 uniformly arranged on the top plate 53, wherein the through hole 55 penetrates the top plate 53, by arranging the through hole 55, the impurities falling between the plurality of rollers 54 can be discharged through the inside of the through hole 55, and the accumulation of impurities inside the top plate 53 is reduced, and the filling assembly 5 further comprises a reinforcing rib 56, wherein the reinforcing rib 56 is uniformly fixed on the bottom plate 51, wherein the reinforcing rib 56 is made of metal material, by arranging the reinforcing rib 56, the reinforcing rib 56 can increase the strength of the bottom plate 51, and the deformation or fracture of the bottom plate 51 after being stressed is reduced.

[0035] Figure 3 And Figure 4 The assembly assembly 6 shown comprises a convex plate 62 fixed on the bottom plate 51, and a convex groove 61 arranged on the frame 1, wherein the convex plate 62 and the convex groove 61 are slidably connected and fixed by bolts 63, by arranging the assembly assembly 6, first manually moving the bottom plate 51, so that the bottom plate 51 drives the convex plate 62 to move, when the convex plate 62 moves to the inside of the convex groove 61, the bolts 63 are screwed into the holes on the frame 1 and the convex plate 62 inside the convex plate 62 to fix the convex plate 62, so as to achieve the assembly and fixation between the filling assembly 5 and the frame 1, and the filling assembly 5 and the frame 1 can be separated subsequently, improving the use flexibility and maintenance convenience of the filling assembly 5.

[0036] Figure 3 And Figure 4 The assembly assembly 6 shown further comprises a spherical block 64, wherein the spherical block 64 is uniformly fixed on the convex plate 62, by arranging the spherical block 64, the spherical block 64 can be inserted into the convex groove 61 to extrude the inner wall thereof, and the gap between the convex plate 62 and the convex groove 61 is filled, reducing the shaking of the convex plate 62.

[0037] Working principle: utilize frame 1 to combine multiple lithium battery groups 2 together, then put frame 1 together with multiple lithium batteries into protective shell 4, then utilize parallel end 3 to electrically connect multiple lithium batteries, then provide power for external equipment by connecting lines on parallel end 3.

[0038] Firstly, manually move bottom plate 51 to make bottom plate 51 move convex plate 62, when convex plate 62 moves to inside position of convex slot 61, fix convex plate 62 by screwing bolt 63 into hole on frame 1 and inside of convex plate 62 through tools, so as to achieve assembly and fixation between filling assembly 5 and frame 1, when frame 1 is inserted into protective shell 4, make top plate 53 extrude inner wall of protective shell 4, so that top plate 53 moves to direction close to bottom plate 51, make top plate 53 extrude rubber pad 57, under the elastic deformation of rubber pad 57, make rubber pad 57 cooperate with bottom plate 51 to intercept top plate 53, push top plate 53 to direction away from frame 1, make top plate 53 cooperate with rubber pad 57 to fill the gap between frame 1 and protective shell 4, so as to achieve auxiliary limiting of frame 1.

[0039] Through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A parallel lithium battery module, characterized by: The utility model relates to a lithium battery pack, and particularly relates to a lithium battery pack and a filling assembly thereof. The utility model discloses a lithium battery pack and a filling assembly thereof, which comprises a frame (1) composed of a plurality of lithium batteries bundled together, parallel ends (3) welded and fixed between two adjacent lithium batteries of the lithium battery pack (2) to electrically connect the plurality of lithium batteries, a protective shell (4) wrapping the frame (1) and the lithium battery pack (2) to protect them, and a filling assembly (5) detachably installed between the frame (1) and the protective shell (4) to limit and reinforce the frame (1) by filling the gap between the frame (1) and the protective shell (4). The filling assembly (5) comprises a bottom plate (51) detachably installed on the frame (1) through an assembly component (6), a top plate (53) having an extension rod (52) fixed on one side thereof, wherein the other end of the extension rod (52) is fixed to the bottom plate (51), and a rubber pad (57) fixed on the bottom plate (51) and placed between the bottom plate (51) and the top plate (53) to fill the gap therebetween. The filling assembly (5) further comprises a roller (54) rotatably installed on the top plate (53) through a circular shaft, wherein the surface of the roller (54) is slightly higher than that of the top plate (53). The edge of the top plate (53) is provided with a slope, and the surface of the top plate (53) is arc-shaped.

2. The parallel lithium battery module of claim 1, wherein: The filling assembly (5) further comprises through holes (55) uniformly arranged on the top plate (53), wherein the through holes (55) penetrate the top plate (53). The filling assembly (5) further comprises reinforcing ribs (56) uniformly fixed on the bottom plate (51), wherein the reinforcing ribs (56) are made of metal. The assembly component (6) comprises a convex plate (62) fixed on the bottom plate (51), a convex groove (61) arranged on the frame (1), wherein the convex plate (62) is slidably connected with the convex groove (61) and fixed by a bolt (63), and a spherical block (64) uniformly fixed on the convex plate (62).

3. The parallel lithium battery module of claim 2, wherein: ​ 4. The parallel lithium battery module of claim 2, wherein: ​ 5. The parallel lithium battery module of claim 2, wherein: ​ 6. The parallel lithium battery module of claim 2, wherein: ​ 7. The parallel lithium battery module of claim 2, wherein: ​ ​ 8. The parallel lithium battery module of claim 7, wherein: ​

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