CN218827634U - Battery cell module, battery and vehicle - Google Patents

Abstract

The utility model relates to a vehicle manufacturing technology field provides an electric core module, battery and vehicle, and the electric core module that this disclosure provided includes: electric core monomer and reinforcing plate, electric core monomer's quantity is a plurality of, a plurality of electric core monomers are just forming electric core to arranging and pile, the reinforcing plate bonds on electric core piles arrange a side that forms by a plurality of electric core monomers, and the projection of reinforcing plate on electric core piles's side is in electric core piles's side, the electric core module that this disclosure provided can bond through reinforcing plate and a plurality of electric core monomer's side, thereby form a whole, can promote electric core module's rigidity and intensity, avoid electric core module to produce structural change because of receiving the vibration, guarantee the performance of battery. The battery and the vehicle also have better quality in corresponding aspects due to the advantages of strong integrity, high rigidity and high strength of the battery cell module.

Description

Battery cell module, battery and vehicle

Technical Field

The disclosure relates to the technical field of vehicle manufacturing, in particular to an electric core module, a battery and a vehicle.

Background

The battery is used as the only power source of the pure electric vehicle, and as the requirement of a user on the endurance mileage of the vehicle is continuously increased, the requirement on the endurance capacity of the battery is also increased, so that a large number of battery cores are inevitably required to be arranged in the battery. In prior art, electric core only bonds in the battery box, can only remove the structural strength and the mode of guaranteeing the battery by the structural strength of box, because lack connection structure between the electric core, the structural stability of whole electric core module is poor, when electric vehicle traveles, the battery of fixing on the frame can be given in the vibration of frame, and then makes electric core module receive the vibration, can destroy electric core module's structure, influences the battery performance.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the present disclosure provides an electric core module, a battery and a vehicle.

An aspect of the present disclosure provides a battery cell module, including: the battery cell comprises a plurality of battery cell monomers and a plurality of reinforcing plates, wherein the battery cell monomers are arranged to form a battery cell stack, the reinforcing plates are bonded on one side surface of the battery cell stack formed by the arrangement of the battery cell monomers, and the projection of the reinforcing plates on the side surface of the battery cell stack is in the side surface of the battery cell stack.

Optionally, a side of the electrical core stack facing the reinforcing plate is coated with a structural adhesive, and the electrical core stack and the reinforcing plate are bonded by the structural adhesive.

Optionally, the height of the stiffener plate is less than the height of the electrical core stack.

Optionally, the electrical core stack is bonded to both sides of the stiffener plate.

Optionally, the number of the reinforcing plates is multiple, and the cell stacks on two sides of each reinforcing plate are arranged just opposite to each other.

Optionally, at least two of the reinforcing plates have different thicknesses.

According to the battery cell module provided by the disclosure, the plurality of battery cell monomers are arranged to form the battery cell stack, and the plurality of battery cell monomers are connected in parallel, so that the battery cell stack can reach the preset battery capacity; the reinforcing plate is bonded on one side face formed by arranging the plurality of cell monomers in the cell stack, so that the connection relation between the adjacent cell monomers can be strengthened, the overall structure of the cell stack is strengthened, the projection on the side face of the cell stack is in the side face of the cell stack by arranging the reinforcing plate, and the reinforcing plate does not exceed the side face of the cell stack so as to avoid interference in assembly of the cell stack in a battery. This electric core module can bond through reinforcing plate and the free side of a plurality of electric cores to form a whole, can promote electric core module's rigidity and intensity, avoid electric core module to produce structural change because of receiving the vibration, guarantee the performance of battery.

The battery provided by another aspect of the present disclosure comprises a liquid cooling plate and the above battery cell module, wherein the liquid cooling plate is arranged at the bottom of the battery cell module, and the liquid cooling plate is used for exchanging heat with the battery cell module.

Optionally, the battery cell module is bonded to the liquid cooling plate.

Optionally, a plurality of limiting portions are arranged on the liquid cooling plate, a limiting structure is formed between the plurality of limiting portions, and at least part of the battery cell modules are arranged in the limiting structure.

The present disclosure also provides a vehicle including the battery.

The battery and the vehicle provided by the present disclosure include the battery cell module as described above. Because the battery cell module has the advantages of strong integrity, high rigidity and high strength, the battery and the vehicle also have better quality in corresponding aspects.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic diagram of a cell unit in a positive alignment arrangement according to an embodiment of the disclosure;

FIG. 2 is a schematic view of a connection structure of the electrical core stack and the reinforcing plate according to an embodiment of the disclosure;

fig. 3 is a schematic diagram of a cell module having two cell stacks according to an embodiment of the disclosure;

fig. 4 is a schematic diagram of a cell module having a plurality of cell stacks according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a battery according to an embodiment of the present disclosure;

fig. 6 is a partial schematic view of a battery according to an embodiment of the disclosure.

1000, a battery cell module; 1. an electrical core stack; 101. a battery cell monomer; 2. a reinforcing plate; 3. structural adhesive; 4. a liquid-cooled plate; 401. a limiting part.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

With reference to fig. 1 and fig. 2, a cell module provided in an embodiment of the present disclosure includes: the battery cell comprises a plurality of battery cell monomers 101 and reinforcing plates 2, wherein the number of the battery cell monomers 101 is multiple, the battery cell monomers 101 are arranged to form a battery cell stack 1, the reinforcing plates 2 are adhered to one side face, formed by arranging the battery cell monomers 101, of the battery cell stack 1, and the projection of the reinforcing plates 2 on the side face of the battery cell stack 1 is in the side face of the battery cell stack 1.

Specifically, the battery cell units 101 may have a rectangular structure or a cylindrical structure, and the structures of the battery cell units 101 are the same, for example, the battery cell units 101 may be lithium iron phosphate square-shell battery cells; the above-mentioned opposite arrangement specifically means that any two adjacent electric core single bodies 101 in the plurality of electric core single bodies 101 are arranged opposite to each other. In addition, the reinforcing plate 2 may be made of plastic or metal, and may be an epoxy plate, a PC plate, a sheet metal plate, or the like according to a specific use scenario.

In the battery cell module of this embodiment, the plurality of battery cell monomers 101 are arranged to form the battery cell stack 1, and the plurality of battery cell monomers are connected in parallel, so that the battery cell stack 1 can reach a preset battery capacity, and the size of the battery cell stack 1 can be reduced by arranging the plurality of battery cell monomers 101 in a facing manner, so that the arrangement manner of the battery cell stack 1 and the parallel connection between the battery cell monomers 101 are more flexible; the connection relation between the adjacent battery cell single bodies 101 can be strengthened by adhering the reinforcing plate 2 to one side surface formed by arranging the plurality of battery cell single bodies 101 on the battery cell stack 1, so that the overall structure of the battery cell stack 1 is strengthened, and the reinforcing plate 2 does not exceed the side surface of the battery cell stack 1 by setting the projection of the reinforcing plate 2 on the side surface of the battery cell stack 1 in the side surface of the battery cell stack 1 so as to avoid interference on the assembly of the battery cell stack 1 in a battery. This electric core module can bond through reinforcing plate 2 and a plurality of electric core monomer 101's side to form a whole, can promote electric core module's rigidity and intensity, avoid electric core module to produce structural change because of receiving the vibration, guarantee the performance of battery.

More specifically, as shown in fig. 3 and fig. 4, the cell module may include only one cell stack 1, or may include a plurality of cell stacks 1, when the cell module includes a plurality of cell stacks 1, at least one side of each cell stack 1 is bonded with a reinforcing plate 2, two adjacent cell stacks 1 may be bonded through the same reinforcing plate 2, or two opposing faces of two adjacent cell stacks 1 are respectively bonded with reinforcing plates 2, and the two reinforcing plates 2 are bonded to each other.

In some embodiments, the side of the electrical core stack 1 facing the reinforcing plate 2 is coated with a structural adhesive 3, and the electrical core stack 1 and the reinforcing plate 2 are bonded by the structural adhesive 3. Specifically, foretell structure is glued 3 and can be that the polyurethane structure glues 3, acrylic acid structure glues 3, the epoxy structure glues 3, UV glues, PUR hot melt adhesive etc. glues 3 and bonds electric core heap 1 and reinforcing plate 2 through setting up the structure, can guarantee reliable connection and effective fixed between electric core monomer 101, has avoided setting up in addition and has been used for fixed electric core monomer 101's mechanical structure, is favorable to the holistic lightweight of vehicle.

In some more detailed embodiments, the height of the stiffener plate 2 is less than the height of the electrical core stack 1. Specifically, the reinforcing plate 2 may be flush with the cell stack 1 on one side in the height direction, and the height difference may be set on the other side; the height difference can also be distributed on two sides of the reinforcing plate 2 according to design requirements, for example, the height of the reinforcing plate 2 can be 20mm less than that of the cell stack 1, and the height difference of 10mm is distributed on each of the upper side and the lower side of the reinforcing plate 2; allowance is reserved for assembly through the setting mode, so that the assembly difficulty is reduced, and the assembly cost is saved. Optionally, both ends on the reinforcing plate 2 length direction can bond with the electric core monomer 101 that is located the length direction both ends of reinforcing plate 2 respectively, and is more detailed, reinforcing plate 2 can be the same with the length that electric core piled 1, also can be slightly less than the length that electric core piled 1, can enough make all electric core monomers 101 of electric core piled 1 all be connected with reinforcing plate 2 through above-mentioned structure, thereby promote electric core piled 1's bulk strength, can avoid overlength reinforcing plate 2 to form the interference to electric core piled 1's assembly again.

In the embodiment shown in fig. 5, the electrical core stack 1 is bonded to both sides of the stiffener 2. Specifically, when the battery cell module 1000 includes a plurality of battery cell stacks 1 therein, the two sides of one reinforcing plate 2 may be both bonded with the battery cell stacks 1, optionally, the two battery cell stacks 1 may include the same number of battery cell monomers 101, the two battery cell stacks 1 are opposite to each other, the reinforcing plate 2 is disposed between the two battery cell stacks 1, and the reinforcing plate 2 is bonded with the battery cell stacks 1 on the two sides to form a whole, so as to improve the strength and rigidity of the battery cell module 1000.

Further, the number of the reinforcing plates 2 is multiple, and the cell stacks 1 on two sides of each reinforcing plate 2 are arranged just opposite to each other. Specifically, when the number of the cell stacks 1 in the cell module 1000 is greater than two, the reinforcing plates 2 may be disposed between every two adjacent cell stacks 1 at least in accordance with the above-mentioned arrangement manner, so that the cells 101 are densely arranged in the array along the linear direction, the actual battery capacity is ensured to meet the actual demand in the limited space, and the whole cell module 1000 has the rigidity and strength of the whole structure.

In a more detailed embodiment, at least two of the plurality of reinforcing plates 2 have different thicknesses. Specifically, the thickness of the reinforcing plate 2 may be set in such a manner that the thickness gradually increases from one side of the cell module 1000 to the other side of the cell module 1000; the arrangement may also be made in such a manner that the reinforcing plate 2 in the middle of the battery cell module 1000 is thicker and the reinforcing plates 2 on both sides are thinner; it is also possible to separately provide a thicker reinforcing plate 2 at a position where the cell module 1000 is subjected to a large load or vibration. Through foretell mode of setting up, can adjust the local intensity of electric core module 1000 according to electric core module 1000's atress scene, can avoid setting up unnecessary reinforced structure, improved design and production efficiency.

As shown in fig. 5 and fig. 6, a liquid cooling plate 4 is disposed at the bottom of the cell module 1000, and the liquid cooling plate 4 is used for exchanging heat with the cell module 1000. Specifically, the bottom of each cell stack 1 in the cell module 1000 is directly or indirectly abutted against the liquid-cooled plate 4, and heat generated in the cell unit 101 can be rapidly dissipated through the liquid-cooled plate 4 by heat exchange between the liquid-cooled plate 4 and the cell module 1000, so that the performance and the service life of the battery are prevented from being influenced by overhigh temperature of the cell module 1000.

In a further embodiment, the cell module 1000 is bonded to the liquid cooling plate 4. Specifically, on one hand, the adhesion between the cell module 1000 and the liquid cooling plate 4 can be realized by flowing the redundant structural adhesive 3 between the cell stack 1 and the reinforcing plate 2 to between the cell stack 1 and the liquid cooling plate 4, and by coating the structural adhesive 3 on one side of the cell stack 1 facing the reinforcing plate 2 and arranging the reinforcing plate 2 to be lower than the cell stack 1 in the height direction, more structural adhesive 3 can flow to between the cell stack 1 and the liquid cooling plate 4, so that the adhesion strength between the cell module 1000 and the liquid cooling plate 4 is ensured; on the other hand, can set up heat conduction structure between electric core module 1000 and liquid cooling board 4 and glue 3, can enough guarantee the joint strength between electric core module 1000 and the liquid cooling board 4, can fill the gap again, promote the heat transfer efficiency between electric core module 1000 and liquid cooling board 4.

In some more detailed embodiments, a plurality of limiting portions 401 are disposed on the liquid cooling plate 4, a limiting structure is formed between the plurality of limiting portions 401, and at least a portion of the battery cell module 1000 is disposed in the limiting structure. Specifically, the limiting portion 401 may be integrally formed with the liquid cooling plate 4 by means of extrusion or the like, or may be assembled on the liquid cooling plate 4, and optionally, the limiting portion 401 surrounds the liquid cooling plate 4 to form a groove-shaped limiting structure, so that the bottom end of the battery cell module 1000 can be inserted into the limiting structure, and part of the structural adhesive 3 or the heat-conducting structural adhesive 3 can flow between the limiting portion 401 and the side wall of the battery cell module 1000 by extrusion, thereby improving the connection strength between the limiting portion 401 and the battery cell module 1000.

The present disclosure also provides a vehicle including the battery.

Since the vehicle and the battery both include the above-described cell module 1000, and the cell module 1000 has the advantages of strong integrity, high rigidity and high strength, the battery and the vehicle also have good quality in the corresponding aspect.

In the description of the embodiments of the present disclosure, it is to be understood that the terms "center", "length", "width", "thickness", "height", "up", "down", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present disclosure and simplifying the description, but do not indicate or imply that the structures or devices referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the embodiments of the present disclosure.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A cell module, comprising: the battery cell comprises a plurality of battery cell monomers and a plurality of reinforcing plates, wherein the battery cell monomers are arranged to form a battery cell stack, the reinforcing plates are bonded on one side surface of the battery cell stack formed by the arrangement of the battery cell monomers, and the projection of the reinforcing plates on the side surface of the battery cell stack is in the side surface of the battery cell stack.

2. The battery cell module of claim 1, wherein a side of the battery cell stack facing the reinforcement plate is coated with a structural adhesive, and the battery cell stack and the reinforcement plate are bonded by the structural adhesive.

3. The cell module of claim 1, wherein a height of the stiffener plate is less than a height of the cell stack.

4. The cell module of claim 1, wherein the core stack is bonded to both sides of the stiffener.

5. The cell module of claim 4, wherein the number of the reinforcing plates is multiple, and the cell stacks on two sides of each reinforcing plate are arranged oppositely.

6. The cell module of claim 5, wherein at least two of the plurality of reinforcement plates have different thicknesses.

7. A battery, characterized by comprising a liquid-cooled plate and the cell module of any one of claims 1 to 6, wherein the liquid-cooled plate is arranged at the bottom of the cell module and is used for exchanging heat with the cell module.

8. The battery of claim 7, wherein the cell module is bonded to the liquid cold plate.

9. The battery of claim 7, wherein a plurality of limiting portions are disposed on the liquid cooling plate, a limiting structure is formed between the plurality of limiting portions, and at least a portion of the cell module is disposed in the limiting structure.

10. A vehicle characterized by comprising the battery according to any one of claims 7 to 9.

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