CN214280135U

CN214280135U - Battery case and battery module

Info

Publication number: CN214280135U
Application number: CN202022892862.3U
Authority: CN
Inventors: 刘兰胜
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-24
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a battery case and battery module belongs to power battery technical field. The battery shell is used for accommodating the battery core assembly, the battery core assembly comprises at least two battery cores, and the battery shell comprises a shell body and a clamping assembly, wherein the shell body is provided with an accommodating cavity for accommodating the battery core assembly; it has elasticity to press from both sides tight subassembly, and tight subassembly setting is holding the intracavity, and when shell body was packed into to electric core, the side of tight subassembly clamp electric core. The battery module comprises the battery shell and an electric core assembly arranged in the battery shell. The battery shell and the battery module of the utility model have elasticity, and can provide continuous clamping force for the side surface of the battery cell when clamping the battery cell, thereby avoiding the battery cell from extruding the shell body, improving the quality of the shell body and further improving the product quality of the battery module; because the clamping assembly has elasticity, the battery cell is convenient to take and place, and the operation is convenient.

Description

Battery case and battery module

Technical Field

The utility model relates to a power battery technical field especially relates to a battery case and battery module.

Background

The battery module includes the shell and sets up a plurality of electric cores in the shell, and the shell plays support, fixed and guard action to electric core, and whether the shell can be intact fixed electric core position and protect electric core not take place to have the deformation etc. of damaging the performance, is the standard of judging the battery module good and bad.

In the trial production stage of a sample of the power battery, in the process of installing the battery cell into the shell, the battery cell is often subjected to large deviation in the position in the shell due to the shaking of the shell or the poor fixation of the shell, and finally the battery cell is extruded on the side surface of the shell to deform the shell, so that a defective product is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery case avoids electric core extrusion shell side, improves product quality, and the electric core of being convenient for is got and is put.

To achieve the purpose, the utility model adopts the following technical proposal:

a battery housing for housing a cell assembly, the cell assembly including at least two cells, comprising:

a housing body having an accommodating cavity for accommodating the cell assembly;

and the clamping assembly is elastic and arranged in the accommodating cavity, and when the battery cell is installed into the shell body, the clamping assembly clamps the side surface of the battery cell.

Optionally, each battery cell is arranged along the first direction, and the battery case further includes:

the separator plate assembly is arranged in the accommodating cavity and divides the accommodating cavity into separating cavities arranged along a first direction, and each battery cell is arranged in each separating cavity;

and the clamping assemblies are respectively arranged in the separation cavities, and clamp the side surface of the battery cell along a second direction, and the second direction is perpendicular to the first direction.

Optionally, the clamping assembly comprises:

a base plate;

the elastic piece is arranged between the bottom end surface of the bottom plate and the bottom wall of the shell body;

two wanes, the symmetry sets up, and each wane sets up respectively between the side of bottom plate and the lateral wall of shell body, and the wane includes the rake that is close to the bottom plate setting and the clamping part of keeping away from the bottom plate setting, and when bottom plate compression elastic component, two side extrusion rakes of bottom plate make the wane rotate, and clamping part presss from both sides tight electric core.

Optionally, a side wall mounting groove is formed in the separation cavity, two side walls of the side wall mounting groove are connected with a rotating shaft, the rocker is rotatably connected to the rotating shaft, and the inclined portion and the clamping portion are arranged on two sides of the rotating shaft.

Optionally, a buffer clamp pad is arranged on the side surface of the clamping part close to the battery cell.

Optionally, the battery housing further comprises a cover plate detachably connected to the housing body, and the cover plate is provided with a carrying assembly.

Optionally, the carrying assembly comprises two fixing seats and a lifting belt, the two fixing seats are arranged on the end face, far away from one end of the shell body, of the cover plate, the two fixing seats are fixedly connected with the end face of the shell body, and two ends of the lifting belt are connected to the two fixing seats respectively.

Optionally, the carrying assembly further comprises a carrying strap disposed on the carrying strap.

Optionally, a groove is formed in the end face, away from the shell body, of the cover plate, and the groove is formed between the two fixing seats.

Another object of the utility model is to provide a battery module improves product quality, the equipment of being convenient for.

the utility model provides a battery module, its includes core subassembly and foretell battery case, and core subassembly sets up in battery case, and core subassembly includes two at least electric cores.

The utility model has the advantages that:

the utility model provides a battery shell, the clamping component has elasticity, can provide continuous clamping force for the side of the battery cell when clamping the battery cell, avoids the battery cell to extrude the shell body, thereby improves the quality of the shell body and further improves the product quality of the battery module; because the clamping assembly has elasticity, the battery cell is convenient to take and place, and the operation is convenient.

The utility model provides a pair of battery module through adopting foretell battery case, has improved product quality, and has made things convenient for the equipment.

Drawings

FIG. 1 is a cross-sectional view of a housing body and clamping assembly provided by an embodiment of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

fig. 3 is an exploded view of a battery case according to an embodiment of the present invention.

In the figure:

1-a shell body; 11-a separation chamber; 12-mounting grooves; 13-a second connection hole;

21-a bottom plate; 22-an elastic member; 23-a rocker; 231-an inclined portion; 232-a clamping portion; 24-a rotating shaft; 25-a buffer clamp pad;

31-a separator;

4-cover plate; 41-slotting; 42-a first connection hole; 43-grooves; 44-a terminal post;

5-a carrying component; 51-a fixed seat; 52-lifting the belt; 53-carrying gloves.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention and the technical effects achieved by the present invention clearer, the following will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

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, detachably 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. 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.

The embodiment provides a battery module, which comprises a battery shell and an electric core assembly arranged in the battery shell, wherein the electric core assembly comprises at least two electric cores; in the existing design, the battery core is easy to have large deviation when being installed into the shell, so that the battery core extrudes the side surface of the shell to deform the shell, thereby generating defective products and influencing the product quality of the battery module.

To solve the above problem, the present embodiment provides a battery case including a case body 1 and a clamping assembly. Specifically, as shown in fig. 1, the case body 1 has a housing cavity for housing the electric core assembly; the clamping assembly has elasticity, and the clamping assembly sets up and is holding the intracavity, and when shell body 1 was packed into to electric core, the side of clamping assembly tight electric core. The clamping assembly has elasticity, and is triggered when the battery cell is arranged in the shell body 1, so that the clamping assembly can provide continuous clamping force for the side surface of the battery cell when clamping the battery cell, and the battery cell is prevented from extruding the shell body 1, the quality of the shell body 1 is improved, and the product quality of the battery module is improved; because the clamping assembly has elasticity, the battery cell is convenient to take and place, and the operation is convenient.

Optionally, the battery cells are arranged in a first direction, the battery case further includes a partition plate 31 assembly, the partition plate 31 assembly is disposed in the accommodating cavity and partitions the accommodating cavity into separation cavities 11 arranged in the first direction, and the battery cells are respectively disposed in the separation cavities 11, so as to avoid that an acting force is generated between the battery cells to affect use; specifically, the partition plate 31 assembly includes a plurality of partition plates 31, the partition plates 31 are disposed in the accommodating chamber, and each partition plate 31 divides the accommodating chamber into each partition chamber 11; more specifically, the partition plate 31 and the shell body 1 may be an integral structure, and are formed by injection molding or the like; the partition plate 31 and the shell body 1 may also be in a split structure, and the partition plate 31 and the shell body 1 are connected by bonding, welding or detachable connection, and the like, and specifically may be set according to actual requirements without limitation.

In this embodiment, battery case includes multiunit clamping component, and each clamping component of group sets up respectively in each compartment 11, and clamping component presss from both sides tight electric core along the side of second direction, and second direction perpendicular to first direction avoids clamping component to occupy and holds the intracavity along the space of first direction, reduces the length of battery module along first direction, has improved space utilization, has reduced the volume of battery module. As shown in fig. 3, the first direction is the x-direction, the second direction is the y-direction, and the third direction is the z-direction.

Optionally, the clamping assembly comprises a base plate 21, an elastic member 22 and two seesaws 23, wherein the elastic member 22 is disposed between the bottom end face of the base plate 21 and the bottom wall of the housing body 1; the two warping plates 23 are symmetrically arranged, each warping plate 23 is respectively arranged between the side face of the bottom plate 21 and the side wall of the shell body 1, each warping plate 23 comprises an inclined portion 231 arranged close to the bottom plate 21 and a clamping portion 232 arranged far away from the bottom plate 21, when a battery cell is installed in the shell body 1, the battery cell is pressed on the bottom plate 21, the bottom plate 21 compresses the elastic piece 22 under the action of the gravity of the battery cell, in the process that the elastic piece 22 is compressed by the bottom plate 21, the inclined portions 231 are extruded by the two side faces of the bottom plate 21 to enable the warping plates 23 to rotate, the battery cell is automatically clamped by the clamping portions 232, the battery cell is prevented from shaking in the shell body 1, accordingly, the shell body is prevented from being deformed when the battery cell is extruded on the shell body 1, and the product quality is improved; when the battery cell is taken out of the shell body 1, the elastic piece 22 drives the bottom plate 21 to reset, the rocker 23 resets, the clamping portion 232 loosens the battery cell, the battery cell is convenient to take out of the shell body 1, the clamping assembly is simple in structure, and the use is reliable and convenient. Optionally, the rocker 23 may be a flat plate structure, the flat plate structure is arranged obliquely, and the inclined portion 231 or the clamping portion 232 is a protruding structure, so that the electrical core is clamped after the rocker 23 rotates; further alternatively, the projection is an inclined piece to facilitate relative movement between the side surface of the bottom plate 21 and the inclined portion 231. Optionally, the fastener is a spring.

Optionally, a side wall mounting groove 12 is formed in the separation cavity 11, two side walls of the side wall mounting groove 12 are connected with a rotating shaft 24, the rocker 23 is rotatably connected to the rotating shaft 24, the inclined portion 231 and the clamping portion 232 are arranged on two sides of the rotating shaft 24, the rocker 23 is arranged in the mounting groove 12, the occupied space of the clamping assembly along the second direction is reduced, and the size of the battery module is further reduced.

Optionally, the buffer clamp pad 25 is arranged on the side surface of the clamping portion 232 close to the battery cell, so that the clamping portion 232 is prevented from wearing the side surface of the battery cell, the quality of the battery cell is improved, and meanwhile, the clamping force on the battery cell can be improved, and the reliability is improved; specifically, the cushion pad 25 may be an elastic wear pad such as a rubber pad.

Optionally, as shown in fig. 3, the battery case further includes a cover plate 4 detachably connected to the case body 1, and is used for plugging the battery cell in the case body 1 to protect the battery cell; in this embodiment, the cover plate 4 is provided with a first connecting hole 42, the case body 1 is provided with a second connecting hole 13, and the battery case further includes a fastener, wherein the fastener passes through the first connecting hole 42 and the second connecting hole 13 to detachably connect the cover plate 4 and the case body 1; specifically, four first connecting holes 42 are formed in four corners of the cover plate 4, the first connecting holes 42 are through holes, four second connecting holes 13 are formed in corresponding positions, the second connecting holes 13 are threaded holes, fasteners are bolts, and the cover plate 4 and the shell body 1 are connected through the bolts so as to be convenient to disassemble and assemble; further specifically, the periphery of the first connecting hole 42 is provided with a slot 41, the depth of the slot 41 is not less than the thickness of the bolt cap, the bolt cap is prevented from protruding out of the cover plate 4, the height of the battery module is reduced, and the size is reduced. Optionally, a terminal 44 is provided on the cap plate 4 to facilitate electrical connection of the battery module with an external structure.

At present, do not be provided with the convenient structure of carrying on the battery module of production in the market, the transportation of drawing for battery module has caused not few puzzlement, especially in the sample trial-manufacturing stage, inconvenient operation, for this reason, in this embodiment, be provided with on the apron 4 and carry subassembly 5, the person of facilitating the use draws the transport to battery module, increases battery module's portability, simple structure, practicality are strong. Specifically, carry subassembly 5 including setting up two fixing bases 51 and carrying the area 52 on the terminal surface of the apron 4 keeping away from shell body 1 one end, on two fixing bases 51 fixed connection shell body 1's terminal surface, carry the both ends of area 52 and connect respectively on two fixing bases 51, simple structure, the equipment of being convenient for, and convenient to use.

Optionally, the carrying assembly 5 further comprises a carrying strap 53 disposed on the carrying strap 52 for ease of handling. Optionally, a groove 43 is formed in an end surface of the cover plate 4 away from the shell body 1, and the groove 43 is disposed between the two fixing seats 51, so that a gap is left between the lifting belt 52 and the cover plate 4, so that a user can hold the lifting belt 52; further specifically, the groove 43 is provided opposite to the carrying glove 53.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery housing for containing an electrical core assembly, the electrical core assembly comprising at least two electrical cores, comprising:

a housing body (1) having a receiving cavity for receiving the electric core assembly;

the clamping assembly is arranged in the accommodating cavity and clamps the side face of the battery cell when the battery cell is installed in the shell body (1).

2. The battery housing of claim 1, wherein the cells are arranged in a first direction, the battery housing further comprising:

the separator (31) assembly is arranged in the accommodating cavity and divides the accommodating cavity into separation cavities (11) arranged along a first direction, and each battery cell is arranged in each separation cavity (11);

and the clamping assemblies are respectively arranged in the separation cavities (11), clamp the side surface of the battery cell along a second direction, and the second direction is perpendicular to the first direction.

3. The battery housing of claim 2, wherein the clamping assembly comprises:

a base plate (21);

an elastic member (22) provided between a bottom end face of the bottom plate (21) and a bottom wall of the case body (1);

two wanes (23), the symmetry sets up, and each wane (23) set up respectively the side of bottom plate (21) with between the lateral wall of shell body (1), wane (23) are including being close to rake (231) that bottom plate (21) set up and keeping away from clamping part (232) that bottom plate (21) set up, bottom plate (21) compression during elastic component (22), two side extrusion of bottom plate (21) rake (231) make rake (23) rotate, clamping part (232) press from both sides tightly electric core.

4. The battery casing according to claim 3, wherein the partition chamber (11) is provided with a side wall mounting groove (12), two side walls of the side wall mounting groove (12) are connected with a rotating shaft (24), the rocker (23) is rotatably connected with the rotating shaft (24), and the inclined part (231) and the clamping part (232) are arranged at two sides of the rotating shaft (24).

5. The battery housing according to claim 3, characterized in that the clamping portion (232) is provided with a buffer clamping pad (25) on the side thereof close to the cell.

6. The battery housing according to any of claims 1 to 5, further comprising a cover plate (4) detachably connected to the housing body (1), the cover plate (4) being provided with a carrying assembly (5).

7. The battery shell according to claim 6, characterized in that the carrying assembly (5) comprises two fixing seats (51) and a carrying belt (52) which are arranged on the end face of the cover plate (4) far away from one end of the shell body (1), the two fixing seats (51) are fixedly connected with the end face of the shell body (1), and two ends of the carrying belt (52) are respectively connected with the two fixing seats (51).

8. A battery housing according to claim 7, characterized in that the carrying assembly (5) further comprises a carrying strap (53) arranged on the carrying strap (52).

9. The battery housing as claimed in claim 7, characterized in that a recess (43) is provided in the end face of the cover plate (4) facing away from the housing body (1), the recess (43) being arranged between the two fastening seats (51).

10. A battery module comprising a battery housing of any one of claims 1-9 and a battery core assembly disposed within the battery housing, the battery core assembly comprising at least two cells.