CN112018298A

CN112018298A - Electricity core support, electricity core module and battery package

Info

Publication number: CN112018298A
Application number: CN202011080426.4A
Authority: CN
Inventors: 韦银涛; 王微; 蒙玉宝; 郭燕春; 蔡鹏�
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2020-12-01
Anticipated expiration: 2040-10-10
Also published as: CN112018298B

Abstract

The invention relates to the technical field of batteries, and particularly discloses a battery cell support, a battery cell module and a battery pack. The battery cell module comprises the battery cell bracket. The battery pack comprises the battery cell module. This electricity core support includes splint and two curb plates of connecting in splint both ends, and two curb plates enclose into the holding tank with splint, and the tip part at least of electricity core holds in the holding tank, and splint are seted up flutedly with the just right side of electricity core, and the intussuseption of recess is filled with the elastic component, and the elastic component can with electric core looks butt. The elastic piece can absorb the expansion deformation of the battery cell, the stress cracking of the end plate is avoided, and the structural stability of the battery cell module is improved.

Description

Electricity core support, electricity core module and battery package

Technical Field

The invention relates to the technical field of batteries, in particular to a battery cell support, a battery cell module and a battery pack.

Background

Currently, with the development of the energy storage technology of the battery pack, the safety and quality of the battery pack are receiving more and more attention. In order to strengthen the security of battery package to avoid in the electric core module monomer electric core to receive jolting or vibrations and take place collision each other in transportation and assembling process, use electric core support to fix electric core usually, thereby strengthen the mechanical strength of electric core module.

Enough space is not reserved between the conventional battery cell support and the battery cell. Consequently, the battery core generates heat and swells, and end plate and other assembly structure receive the bulging force can split, have destroyed the structural stability of electric core module, have reduced the life-span of electric core module and battery package. Moreover, the existing battery cell support generally adopts an integrated structure, and the specific size is matched with the battery cell, so that the overall size of the battery cell support is larger, the weight is heavier, and the installation difficulty and the manufacturing cost of the battery cell support are increased. And meanwhile, a heat dissipation structure is not reserved on the battery cell support, so that the expansion amount of the battery cell during heating is increased.

Therefore, a battery cell support, a battery cell module and a battery pack are needed to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a battery cell support to solve the problem that the structural stability of an existing battery cell module is poor when a battery cell expands.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides an electricity core support for electric core in the fixed electric core module, include splint and two connect in the curb plate at splint both ends, two the curb plate with splint enclose into the holding tank, the tip part at least of electric core holds in the holding tank, on the splint with the just right side of electric core is seted up flutedly, the packing of recess is filled with the elastic component, the elastic component can with electric core looks butt.

Preferably, the top of the side plate extends towards the direction of the clamping plate to form a limiting part, and the limiting part can abut against the upper end or the lower end of the battery cell.

Preferably, the bottom of curb plate deviates from the direction extension of splint is provided with the buckle head, the buckle head can cooperate with the ribbon, in order to fix the electricity core module.

Preferably, the clamping plate is provided with a lightening hole.

Preferably, both sides of splint all are provided with the boss, the recess is located correspondingly on the boss.

Preferably, the clamping plate is provided with heat dissipation holes, and the heat dissipation holes penetrate through two ends of the clamping plate in the height direction.

Preferably, the number of the heat dissipation holes is multiple, and the heat dissipation holes are arranged side by side along the length direction of the clamping plate.

Another object of the present invention is to provide a battery cell module, so as to solve the problem of poor structural stability of the battery cell module when the battery cell expands.

an electricity core module, includes foretell electricity core support.

Preferably, the battery cell module further comprises a plurality of battery cells arranged side by side, each battery cell support frame, the two sides of the clamping plates and the side plates are all enclosed to form the accommodating groove, two of the battery cells are arranged adjacently at random, the battery cell supports are arranged between the battery cells, and the battery cell supports are arranged at the upper ends and the lower ends of the battery cells relatively.

Another object of the present invention is to provide a battery pack to solve the problem of poor structural stability of the conventional battery pack when the battery cells swell.

a battery pack comprises the battery cell module.

The invention has the beneficial effects that:

the electric core support of this embodiment is through seting up the recess in the both sides of splint to pack the elastic component in the recess, make splint pass through elastic component butt in electric core. The elastic component can absorb the expansion deformation of the battery cell, so that stress cracking of other assembly structures of the end plate and the battery cell module is avoided, and the stability of the battery cell module is improved.

The electric core module of this embodiment includes above-mentioned electric core support, offers the recess through the both sides at splint to pack the elastic component in the recess, make splint pass through elastic component butt in electric core. The elastic piece can absorb the expansion deformation of the battery cell, so that stress cracking of other assembly structures of the end plate and the battery cell module is avoided, and the stability of the assembly structure in the battery cell module is improved. Install two electric core supports between arbitrary two adjacent electric cores relatively, for current integral type supporting structure, the split type structure that two electric core supports are constituteed for the simple structure of electric core support easily installs, has reduced the manufacturing cost of electric core module. Simultaneously, the clearance of formation between two electric core supports is favorable to quick heat dissipation.

The battery pack comprises the battery cell module, grooves are formed in two sides of the clamping plate, and the grooves are filled with the elastic pieces, so that the clamping plate is abutted to the battery cell through the elastic pieces. The elastic component can absorb the expansion deformation of the battery core, so that stress cracking of other assembly structures of the end plate and the battery core module is avoided, and the stability of the assembly structure in the battery pack is improved. Install two electric core supports between arbitrary two adjacent electric cores relatively, for current integral type supporting structure, the split type structure that two electric core supports are constituteed for the simple structure of electric core support easily installs, has reduced the manufacturing cost of battery package. Simultaneously, the clearance of formation between two electric core supports is favorable to quick heat dissipation.

Drawings

Fig. 1 is a schematic diagram illustrating an assembly of four cell holders and a single cell according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cell support provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a battery cell module according to an embodiment of the present invention.

The component names and designations in the drawings are as follows:

100. a battery cell module; 10. an electric core; 20. binding a belt; 30. a battery cell bracket; 40. an end plate;

1. a splint; 11. a boss; 111. a groove; 12. lightening holes; 13. heat dissipation holes; 2. a side plate; 21. a limiting part; 22. a buckle head.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to fig. 3, the present embodiment discloses a cell holder 30 for fixing a cell 10 in a cell module 100. This electricity core support 30 includes splint 1 and two curb plates 2 of connecting in splint 1 both ends, and two curb plates 2 enclose into the holding tank with splint 1, and the tip part of electric core 10 at least holds in the holding tank, and splint 1 is gone up and is seted up fluted 111 with electric core 10 just right side, and the packing of recess 111 has elastic component, and elastic component can with electric core 10 looks butt.

In the present embodiment, grooves 111 are formed on two sides of the clamping plate 1 of the cell holder 30, and the grooves 111 are filled with elastic members, so that the clamping plate 1 abuts against the cell 10 through the elastic members. The elastic member can absorb the expansion deformation of the battery cell 10, and the structural stability of the battery cell module 100 is improved.

Preferably, the length of the clamping plate 1 is equal to the length of the battery cell 10, that is, the length of the accommodating groove is equal to the length of the battery cell 10. When electric core 10 was located the holding tank, two curb plates 2 can the butt in electric core 10, are favorable to electric core 10 and electric core support 30's firm installation, have avoided taking place relative displacement between electric core 10 and the electric core support 30, have realized the installation of electric core support 30 horizontal direction.

Preferably, the depth of the groove 111 is 0.25mm, and the thickness of the elastic member is 0.8 mm. The elastic piece is preferably a silica gel pad which has good insulating property and elasticity and is cheap and easy to obtain. The battery cell support 30 of the present embodiment is installed between the battery cells 10 of the battery cell module 100, and the thickness of the elastic member is compressed to 0.5 mm. When the battery cell 10 expands, the elastic member is compressed and absorbs the expansion deformation of the battery cell 10, effectively preventing the end plate 40 and other mounting structures of the battery cell module 100 from being cracked by force. Meanwhile, the problem of uneven gap between the battery cell 10 and the clamping plate 1 caused by poor flatness of the battery cell 10 is solved.

Preferably, the top of the side plate 2 extends toward the clamping plate 1 to form a limiting portion 21, and the limiting portion 21 can abut against the upper end or the lower end of the battery cell 10. The side plate 2 of the present embodiment is provided with a stopper portion 21 extending inward, and the stopper portion 21 is disposed horizontally. When the battery cell support 30 is installed at the upper end or the lower end of the battery cell 10, the limiting portion 21 abuts against the end surface of the upper end or the lower end of the battery cell 10, so that the battery cell support 30 is installed and positioned in the vertical direction. The side plate 2 of the present embodiment has a top portion and a bottom portion described below in the height direction of the chucking plate 1. When the battery cell support 30 is installed on the battery cell 10, one end of the side plate 2 close to the upper end or the lower end of the battery cell 10 is a top, and the other end is a bottom.

Preferably, the splint 1 is provided with lightening holes 12. The lightening holes 12 penetrate through two sides of the bottom of the clamping plate 1 as accommodating grooves, so that the two accommodating grooves are communicated through the lightening holes 12. The lightening holes 12 are advantageous for reducing the weight of the cell holder 30 and for machining the heat dissipation holes 13 described below. But also facilitates the rapid heat dissipation of the battery cell 10. The lightening hole 12 in the embodiment is a square hole. The lightening holes 12 may be two, three or more, and the specific shape may be circular or other shapes.

Preferably, the clamping plate 1 is provided with bosses 11 on both sides, and the grooves 111 are located on the corresponding bosses 11. Set up recess 111 in boss 11 for the height of the elastic component in recess 111 is higher than splint 1's side all the time, has guaranteed that the elastic component at first contacts electric core 10 when electric core support 30 is installed with electric core 10, and splint 1 is all the time through elastic component butt in electric core 10.

Preferably, the clamping plate 1 is opened with heat dissipation holes 13, and the heat dissipation holes 13 penetrate through both ends of the clamping plate 1 in the height direction. The heat generated by the battery cell 10 can be rapidly discharged through the heat dissipation hole 13, which is beneficial to improving the heat dissipation efficiency of the battery cell 10. Meanwhile, the weight of the battery cell support 30 is reduced through the heat dissipation holes 13, and the light weight of the battery cell support 30 is favorably realized.

Further preferably, the number of the heat radiating holes 13 is plural, and the plural heat radiating holes 13 are arranged side by side along the length direction of the splint 1. The number of the heat dissipation holes 13 in this embodiment is multiple, so that the heat dissipation efficiency of the battery cell 10 is improved. The cross-sectional shape of the heat dissipation hole 13 in this embodiment is square. Of course, the cross-sectional shape of the heat dissipation hole 13 may also be a circle or other polygon, which is not described herein again.

As shown in fig. 3, the present embodiment further discloses a battery cell module 100. This electricity core module 100 includes above-mentioned electricity core support 30, has improved the stability and the security of electricity core module 100.

Preferably, electric core module 100 still includes a plurality of electric cores 10 that set up side by side, and the both sides of splint 1 of every electric core support 30 all enclose into the holding tank with curb plate 2, press from both sides between two arbitrary adjacent electric cores 10 and be equipped with two electric core supports 30, and two electric core supports 30 set up in the upper and lower both ends of electric core 10 relatively. For current integral type support, set up two electric core supports 30 at the upper and lower both ends of electric core 10 relatively and constitute split type support, reduced electric core support 30's size and weight, be favorable to quick, the convenient installation of electric core support 30. Meanwhile, a large gap is formed between the two battery cell supports 30 which are oppositely arranged at the upper end and the lower end of the battery cell 10, so that heat dissipation of the battery cell 10 is facilitated.

As shown in fig. 1 and fig. 2, two side plates 2 in the cell holder 30 are respectively connected to two ends of the clamping plate 1 in the length direction, and form an i-shaped frame. This "worker" font frame has the holding tank that holds electric core 10 in splint 1's both sides, and two curb plates 2 are the lateral wall of holding tank, and splint 1 is the tank bottom of holding tank. The battery cell module 100 in this embodiment further includes a battery cell 10, a tie 20, and an end plate 40. A plurality of cells 10 are arranged side by side between two end plates 40. The number of the bands 20 is two, and the two bands 20 are respectively sleeved on the plurality of battery cell supports 30 at the upper end of the battery cell 10 and the plurality of battery cell supports 30 at the lower end of the battery cell 10. This ribbon 20 can tie up together end plate 40, electric core 10 and battery core support 30 to form stable in structure's battery core module 100.

Preferably, the bottom of the side plate 2 extends away from the direction of the clamping plate 1 and is provided with a buckle head 22, and the buckle head 22 can be matched with the cable tie 20 to fix the battery cell module 100.

The buckle head 22 in this embodiment has a horizontal plane, and the tie 20 can abut against the horizontal plane of the buckle head 22 when bundling up the battery cell 10 and the battery cell support 30, so that the tie 20 has a mounting position in the vertical direction, and the tie 20 is mounted quickly and efficiently. The fixed mounting of electric core 10 of this embodiment need not to use long screw rod or laser welding fixed, has greatly improved the fixed mounting of electric core support 30 with electric core 10, has improved the packaging efficiency of electric core module 100.

The embodiment also discloses a battery pack (not shown in the drawings), which includes the battery cell module 100. The elastic piece in the battery pack can absorb the expansion deformation of the battery core 10, so that the stress crack of the battery pack is avoided, and the stability and the safety of the battery pack are improved. The split type support structure formed by the two battery cell supports 30 enables the battery cell supports 30 to be simple in structure and convenient to install, and improves the assembly efficiency of the battery pack.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electricity core support for electric core (10) in the fixed electric core module, its characterized in that, connect including splint (1) and two in curb plate (2) at splint (1) both ends, two curb plate (2) with splint (1) enclose into the holding tank, the tip part at least of electricity core (10) holds in the holding tank, splint (1) go up with electric core (10) just right side is seted up fluted (111), recess (111) intussuseption is filled with the elastic component, the elastic component can with electric core (10) looks butt.

2. The battery cell support according to claim 1, characterized in that a limiting part (21) extends from the top of the side plate (2) towards the clamping plate (1), and the limiting part (21) can abut against the upper end or the lower end of the battery cell (10).

3. The battery cell support of claim 1, wherein a buckle head (22) extends from the bottom of the side plate (2) in a direction away from the clamping plate (1), and the buckle head (22) can be matched with a cable tie (20) to fix the battery cell module.

4. The cell support according to claim 1, characterized in that the clamping plate (1) is provided with lightening holes (12).

5. The cell support according to claim 1, characterized in that both sides of the clamping plate (1) are provided with a boss (11), and the groove (111) is located on the corresponding boss (11).

6. The battery cell support according to claim 1, wherein the clamping plate (1) is provided with heat dissipation holes (13), and the heat dissipation holes (13) penetrate through two ends of the clamping plate (1) in the height direction.

7. The cell support according to claim 6, characterized in that the number of the heat dissipation holes (13) is multiple, and the heat dissipation holes (13) are arranged side by side along the length direction of the clamping plate (1).

8. A cell module comprising the cell support of any of claims 1-7.

9. The battery cell module of claim 8, further comprising a plurality of battery cells (10) arranged side by side, wherein the accommodating groove is defined by two sides of the clamping plate (1) and the side plate (2) of each battery cell support, two battery cell supports are clamped between any two adjacent battery cells (10), and the two battery cell supports are oppositely arranged at the upper and lower ends of the battery cells (10).

10. A battery pack comprising the cell module of claim 8.