CN217881763U

CN217881763U - Intermediate isolation connecting device and battery module

Info

Publication number: CN217881763U
Application number: CN202121774137.4U
Authority: CN
Inventors: 孙艳
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-11-22
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a middle connecting device and battery module of keeping apart joins in marriage to in the battery module, with inciting somebody to action a plurality of module units are separated into to the battery module, and this connecting device includes a pair of sideboard, pastes respectively with a spacing distance and leans on adjacent two the opposite face of module unit, and with each the module unit links firmly, and intermediate junction portion links firmly a pair ofly between the sideboard, in order to keep a pair of spacing distance between the sideboard, hoist and mount portion sets up on the intermediate junction portion. Middle isolation connecting device, connect the sideboard on two module units through intermediate junction portion, couple together two module units to through hoist and mount portion, increase the hoist and mount point of battery module, when strengthening the bulk rigidity of battery module, can reduce the deflection of battery module hoist and mount in-process.

Description

Intermediate isolation connecting device and battery module

Technical Field

The utility model relates to a power battery technical field, in particular to middle isolation connecting device. Additionally, the utility model discloses still relate to a battery module.

Background

At present, with the national vigorous popularization of new energy fields, electric vehicles have become the mainstream trend in the future, wherein a power battery pack is the most important power supply component of the electric vehicle.

The electric core is used as a minimum unit of the power battery and is also an electric energy storage unit, and the electric core has high energy density to store electric energy as much as possible, so that the electric automobile has longer endurance mileage. In addition, the service life of the battery cell is also the most critical factor, and the damage of any one battery cell can cause the damage of the whole battery pack.

When a plurality of electric cores are packaged together by the same shell frame, and contact is carried out with the outside through unified boundary, a module is formed. Such as the 350 module, 390 module, 590 module, etc., on the market. When a plurality of modules are controlled or managed together by the BMS and the thermal management system, the unified whole is called a battery pack.

With the continuous update of the battery pack, the capacity of the battery module and the weight of the battery module are gradually increased, and the increase of the capacity and the weight of the battery module inevitably causes the weakening of the overall rigidity of the battery module, thereby causing the strength of the battery pack to be lowered.

And in the hoist and mount process of battery module, because battery module overlength is overweight, can make battery module produce great deformation in the hoist and mount process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an intermediate isolation connecting device to reinforcing battery module rigidity reduces the deflection of hoist and mount in-process battery module.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an intermediate isolation connection device fitted into a battery module to divide the battery module into a plurality of module units, the connection device comprising:

the pair of side plates are respectively attached to opposite surfaces of two adjacent module units at a certain interval and fixedly connected with each module unit;

the middle connecting part is fixedly connected between the pair of side plates so as to keep the spacing distance between the pair of side plates;

and the hoisting part is arranged on the middle connecting part.

Furthermore, the side plates and the module units are fixedly connected in a bundling mode.

Furthermore, two ends of the middle connecting part are respectively connected to the middle area of each side plate in the height direction.

Furthermore, connecting arms for bundling and connecting are formed on each side plate above and below the middle connecting part.

Further, the cross-sectional area of the connecting arm above the intermediate connecting portion is larger than the cross-sectional area of the connecting arm below the intermediate connecting portion.

Furthermore, each connecting arm is provided with a concave groove for embedding the binding.

Further, the hanger is configured as a hanger hole formed on the intermediate connection portion.

Further, a hollow portion is formed on the intermediate connection portion.

Furthermore, the hollowed-out parts are arranged to be two groups which are arranged close to the side plates, and each group of hollowed-out parts is provided with a plurality of lightening holes which are arranged in a stacking mode along the height direction of the side plates.

Compared with the prior art, the utility model discloses following advantage has:

middle isolation connection device, connect two module units through intermediate junction portion and go up fixed sideboard to couple together two module units, through setting up hoist and mount portion, increase the hoist and mount point of battery module, when strengthening the bulk rigidity of battery module, can reduce the deflection of battery module hoist and mount in-process.

Another object of the present invention is to provide a battery module, which includes at least two module units, and the middle isolation connection device is assembled between two adjacent module units.

the utility model discloses a battery module, through keeping apart connecting device in the middle of setting up, on the basis of guaranteeing battery module rigidity and intensity, can reduce the deflection that the battery module hoist and mount in-process produced.

Drawings

The accompanying drawings, which form a part of the present disclosure, are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings:

fig. 1 is a schematic view of an overall structure of an intermediate isolation connection device according to a first embodiment of the present invention;

fig. 2 is a top view of an intermediate isolation joint assembly according to a first embodiment of the present invention;

fig. 3 is a front view of an intermediate isolating and connecting device according to a first embodiment of the present invention;

fig. 4 is a schematic view of an overall structure of a battery module according to the second embodiment of the present invention.

Description of the reference numerals:

1. a module unit; 2. a sideboard; 201. an intermediate connection portion; 2011. a hoisting part; 20111. hoisting holes; 2012. a hollowed-out portion; 202. a connecting arm; 2021. a recessed groove; 20211. lightening holes; 3. and (6) binding the belt.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that if terms indicating directions or positional relationships such as "up", "down", "inside", "outside", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The utility model relates to an intermediate isolation connecting device joins in marriage to in the battery module to separate into a plurality of module units 1 with the battery module, on the whole constitution, this connecting device includes a pair of sideboard 2, and fixed connection is at the intermediate junction 201 between a pair of sideboard 2.

In this embodiment, the intermediate connection portion 201 and the side plates 2 on both sides thereof may be manufactured in an integrated manner, or may be fixedly connected to each other by welding, so as to ensure the structural strength of the connection device, and in addition, the intermediate connection portion 201 and the side plates 2 may be made of metal materials, such as aluminum alloy, iron, and the like.

Wherein, a pair of sideboard 2 pastes the opposite face at two adjacent module units 1 respectively with a spacing distance to link firmly with each module unit 1, it should be explained that sideboard 2 can adopt the bonding with module unit 1's fixed mode, connected modes such as welding, in addition, intermediate junction 201 is in order to keep the spacing distance between a pair of sideboard 2, hoist and mount portion 2011 sets up on intermediate junction 201, specifically speaking, hoist and mount portion 2011 is constructed as the lifting hole 20111 that forms on intermediate junction 201, lifting hole 20111 is equipped with two, and two lifting hole 20111 along intermediate junction 201 extending direction interval arrangement.

As above structure, connect two module unit 1 through intermediate junction portion 201 and go up fixed sideboard 2 to couple together two module unit 1, through setting up hoist and mount portion 2011, the hoist and mount point at multiplicable battery module middle part can reduce the deflection of battery module hoist and mount in-process when strengthening the bulk rigidity of battery module.

It should be noted that the battery module in the present embodiment generally refers to a battery module product with welded end plates, and the structures of the battery module not described in the present embodiment can refer to the common structural parts of the battery module in the prior art, which are not described herein again.

Based on the above overall design concept, an exemplary structure of the intermediate isolation connection device of the present embodiment is shown in fig. 1 to fig. 3, wherein the opposite side plates 2 and the module units 1 are fixedly connected in a bundling manner, in the present embodiment, the bundling module unit 1 can be fixed by a ribbon 3, a rubber ring, and the like, and the ribbon 3 is taken as an example, and the ribbon 3 is wound around the side walls around the module unit 1 to ensure the fixation of the module unit 1.

For guaranteeing connecting device's rigidity, the middle part region at each 2 direction of height of sideboard is connected respectively at the both ends of intermediate junction portion 201, when hoisting battery module from this, sideboard 2 extrudees intermediate junction portion 201, and intermediate junction portion 201 supports sideboard 2, and intermediate junction portion 201 sets up in the middle part region of each 2 direction of height of sideboard, can be better provide the holding power for sideboard 2, make connecting device's overall structure rigidity promote.

In this embodiment, for fixed module unit 1, be located on each sideboard 2 of intermediate junction portion 201 top and below, be formed with the linking arm 202 that supplies to tie up the connection, linking arm 202 can provide the fixed basis of tying up for module unit 1, through linking arm 202 of intermediate junction portion 201 top and below, it is fixed with module unit 1 and 2 two use ribbon 3 of sideboard, stability when can guarantee battery module hoist and mount, in order to avoid hoist and mount in-process sideboard 2 to break away from module unit 1 and cause the damage of battery module.

As shown in fig. 3, a concave groove 2021 for embedding the binding is formed in each connecting arm 202, and when the binding band 3 is fixed to the connecting arm 202, the fixing of the binding band 3 is more stable due to the concave groove 2021, and the binding band 3 is not easily dropped from the connecting arm 202, so that the stability of the module unit 1 can be ensured.

It is worth mentioning that, because the battery module is in the hoisting process, the module units 1 connected with each side plate 2 can be close to each other and extrude the side plates 2 under the action of their own weight, so the top area of the side plates 2 in the height direction can receive a larger extrusion force, in order to ensure the structural strength of the connecting device, as a preferred embodiment, the cross sectional area of the connecting arm 202 located above the intermediate connecting portion 201 is larger than the cross sectional area of the connecting arm 202 located below the intermediate connecting portion 201, the area of the connecting arm 202 above the intermediate connecting portion 201 is increased, the strength of the side plates 2 can be improved, and thus the side plates 2 can provide better support for the module units 1.

In addition, a hollow part 2012 is formed on the intermediate connection part 201 to reduce the weight of the connection device while ensuring the structural strength of the connection device.

As shown in fig. 3, the hollowed-out portions 2012 are arranged in two groups adjacent to the side plates 2, each group of hollowed-out portions 2012 has a plurality of weight-reducing holes 20211 stacked in the height direction of the side plates 2, the weight-reducing holes 20211 are rectangular holes, it should be noted that the size of each weight-reducing hole 20211 is not the same, and the specific number, shape and layout of the weight-reducing holes 20211 may be selected according to actual circumstances, which is not limited in this embodiment.

The middle isolation connecting device of the embodiment can reduce the weight of the battery module while ensuring the strength of the battery module, and can enable the deformation of the battery module in the hoisting process to be smaller through the connecting device.

Example two

The present embodiment relates to a battery module, as shown in fig. 4, the battery module includes at least two module units 1, and an intermediate isolation connection structure in the first embodiment is assembled between two adjacent module units 1.

The battery module of this embodiment is through adopting the middle isolation connection structure among the first embodiment, on the basis of guaranteeing battery module rigidity and intensity, can reduce the deflection that the battery module hoist and mount in-process produced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intermediate isolation connection device fitted into a battery module to divide the battery module into a plurality of module units (1), characterized in that the connection device comprises:

the pair of side plates (2) are respectively attached to opposite surfaces of two adjacent module units (1) at a certain interval and are fixedly connected with the module units (1);

the middle connecting part (201) is fixedly connected between the pair of side plates (2) so as to maintain the spacing distance between the pair of side plates (2);

and a hoisting part (2011) which is arranged on the intermediate connecting part (201).

2. The intermediate isolating coupler according to claim 1, wherein: the pair of side plates (2) is fixedly connected with each module unit (1) in a binding mode.

3. The intermediate isolating coupler as in claim 2, wherein: two ends of the middle connecting part (201) are respectively connected to the middle area of each side plate (2) in the height direction.

4. The intermediate isolating coupler as in claim 3, wherein: connecting arms (202) for bundling connection are formed on each side plate (2) above and below the intermediate connecting part (201).

5. The intermediate isolating coupler according to claim 4, wherein: the cross-sectional area of the connecting arm (202) above the intermediate connecting portion (201) is greater than the cross-sectional area of the connecting arm (202) below the intermediate connecting portion (201).

6. The intermediate isolating coupler according to claim 4, wherein: each connecting arm (202) is provided with a concave groove (2021) for binding and embedding.

7. The intermediate isolating coupler according to claim 1, wherein: the hoisting part (2011) is configured as a hoisting hole (20111) formed on the intermediate connection part (201).

8. Intermediate isolating and connecting device according to any one of claims 1 to 7, characterized in that: a hollow part (2012) is formed on the intermediate connecting part (201).

9. The intermediate isolating coupler according to claim 8, wherein: the hollowed-out parts (2012) are arranged in two groups adjacent to the side plates (2), and each group of hollowed-out parts (2012) is provided with a plurality of lightening holes (20211) stacked along the height direction of the side plates (2).

10. A battery module, includes two at least module units (1), its characterized in that: an intermediate isolating and connecting device as claimed in any one of claims 1 to 9 is arranged between two adjacent module units (1).