CN217426982U - Battery pack and vehicle - Google Patents

Abstract

The application relates to battery technology field, especially relates to a battery package and vehicle, and the battery package includes: the shell comprises a bottom plate, and the bottom plate is provided with a fixing part; the battery cell is arranged on the fixing portion and is obliquely arranged in the shell, and a preset angle is formed between the battery cell and the bottom plate of the shell, so that the battery cell can be accommodated in the shell. The battery pack provided by the application is simple in structure, the reasonable in layout of electric core, the inner space of make full use of battery pack casing improves the current density of this battery pack to a certain extent to electric core and casing need not form a complete set and use, and the position of the relative fixed part of accessible regulation electric core and then change the slope degree of electric core in the casing, so that not unidimensional electric core can be encapsulated in the casing.

Description

Battery pack and vehicle

Technical Field

The application relates to the technical field of batteries, in particular to a battery pack and a vehicle.

Background

At present, current battery, electric core are vertical to be placed in the casing of battery package usually, and the size of electric core matches each other with the size of battery package casing, that is to say electric core and the supporting use of battery package casing, and this electric core and the battery package that also makes this type of battery do not have the commonality, then can't hold in the battery package casing when the size of electric core is slightly bigger.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a battery pack and a vehicle, so that the technical problem that in the prior art, an existing battery core and a battery pack shell are used in a matched mode, and the universality is poor is solved to a certain extent.

The application provides a battery pack, includes: the shell comprises a bottom plate, and the bottom plate is provided with a fixing part;

the battery cell is arranged on the fixing portion, the battery cell is obliquely arranged in the shell, and a preset angle is formed between the battery cell and the bottom plate of the shell, so that the battery cell can be accommodated in the shell.

In the above technical solution, further, the housing further includes a side wall enclosure and a cover plate, the side wall enclosure is disposed on the bottom plate, and the cover plate is disposed at one end of the side wall enclosure, which is far away from the bottom plate;

the height of the battery cell obliquely arranged in the shell is not larger than the distance between the cover plate and the bottom plate.

In any one of the above technical solutions, further, the fixing portion includes a first plate member and a second plate member disposed at an angle to each other, the first plate member and the second plate member are respectively connected to the bottom plate, and the battery cell is connected to the first plate member.

In any one of the above aspects, a triangular region is formed between the first plate member, the second plate member, and the bottom plate, and a cooling medium flows in the triangular region.

In any one of the above technical solutions, further, the battery cell is provided with an explosion-proof valve, the first plate member is formed with a mounting hole, and the shape of the mounting hole is matched with the shape of the explosion-proof valve.

In any of the above technical solutions, further, the number of the battery cells is multiple, the multiple battery cells are divided into M (M is greater than or equal to 1) rows in the casing, and each row includes N (N is greater than or equal to 1) battery cells.

In any one of the above technical solutions, further, the number of the battery cells in each column is multiple, and the multiple battery cells are sequentially stacked along the thickness direction of the battery cells.

In any one of the above technical solutions, further, the battery pack further includes a converging piece, a positive pole column and a negative pole column are arranged on one side wall surface of the cover plate at intervals, or the positive pole column and the negative pole column are respectively arranged at two ends of the battery cell distributed along the length direction of the battery cell, and the converging piece is used for connecting a plurality of poles in a row of the battery cell, which are arbitrarily adjacent to each other, of the battery cell and have different polarities.

In any one of the above technical solutions, further, a limiting member is disposed between the battery cell and the sidewall enclosure.

The application also provides a vehicle, which comprises the battery pack in any technical scheme, so that all beneficial technical effects of the battery pack are achieved, and the details are not repeated.

Compared with the prior art, the beneficial effect of this application is:

the application provides a battery package includes: the shell comprises a bottom plate, and the bottom plate is provided with a fixing part; the battery cell is arranged on the fixing portion, the battery cell is arranged in the shell in an inclined mode, and a preset angle is formed between the battery cell and the bottom plate of the shell, so that the battery cell can be contained in the shell.

The battery pack provided by the application is simple in structure, the reasonable in layout of electric core, the inner space of make full use of battery pack casing improves the current density of this battery pack to a certain extent to electric core and casing need not form a complete set and use, and the position of the relative fixed part of accessible regulation electric core and then change the slope degree of electric core in the casing, so that not unidimensional electric core can be encapsulated in the casing.

The utility model provides a vehicle, including the aforesaid battery package, therefore, carry out reasonable layout through arranging of this battery package to electric core, the inner space of make full use of casing to electric core and electric core between have better radiating effect, improved the security of this vehicle.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic partial structural diagram of a battery pack provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 3 at B;

fig. 5 is a schematic structural diagram of another part of a battery pack according to an embodiment of the present application.

Reference numerals:

1-shell, 101-bottom plate, 102-side wall enclosing plate, 103-cover plate, 2-battery core, 3-fixing part, 301-first plate component, 3011-mounting hole, 302-second plate component, 303-triangular region, 4-first limiting part, 5-second limiting part, 6-confluence part and alpha-preset angle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The battery pack and the vehicle according to the embodiment of the present application are described below with reference to fig. 1 to 5.

Referring to fig. 1 to 5, an embodiment of the present application provides a battery pack, which includes a housing 1 and a battery cell 2 disposed in the housing 1, wherein the housing 1 includes a bottom plate 101, a side wall enclosure 102, and a cover plate 103, a bottom end of the side wall enclosure 102 is connected to the bottom plate 101, and the cover plate 103 is disposed above the side wall enclosure 102, so that an accommodating space is formed inside the housing 1.

The interior face of bottom plate 101 is provided with fixed part 3, electric core 2 sets up on fixed part 3, and electric core 2 sets up in accommodation space slope, make and form predetermined angle alpha between electric core 2 and the bottom plate 101, the degree of slope of electric core 2 is corresponded to the size of predetermined angle alpha, thereby make between electric core 2 topmost to the bottom plate 101 distance be not more than the interior face of apron 103 and the interior face of bottom plate 101 between the face, thereby make electric core 2 can be settled in casing 1, and do not influence the encapsulation of apron 103.

Further, the quantity of electricity core 2 is a plurality of, a plurality of electricity cores 2 are the matrix arrangement in casing 1, preferably, the length direction of each electricity core 2 extends along the length or the width direction of casing 1, form the contained angle between the width direction of each electricity core 2 and the lateral wall bounding wall 102 of casing 1, more preferably, a plurality of electricity cores 2 divide into the multiseriate and arrange in casing 1, and include a plurality of electricity cores 2 of piling up in order along the thickness direction of electricity core 2 in each row, the at utmost utilizes the inner space of casing 1, the current density of this battery package has been increased. It should be noted that, in the stacking manner, the large surfaces of any two adjacent electric cores 2 in each row are in contact with each other, and the large surfaces of the two adjacent electric cores 2 are arranged in a staggered manner due to the inclined arrangement of the electric cores 2, so that the contact area between the two electric cores 2 is reduced, the heat transfer between the electric cores 2 is reduced, and meanwhile, the amount of the heat insulating material between the two electric cores can be reduced, thereby reducing the cost.

Further, the predetermined angle α is equal to or less than (2 × cot (b/a) -90 °), where a is a short side of a cross section of the single battery cell 2 in the vertical direction along the width direction of the battery cell 2, b is a long side of the cross section, and b > a, and the predetermined angle α is set within this range to adjust the inclination degree of the battery cell 2, so that the maximum height of the battery cell 2 does not exceed the height of the casing 1, and normal packaging of the cover plate 103 is ensured. The smaller the predetermined angle α is, the larger the inclination degree is, and the smaller the height of the battery pack in which the battery cell 2 can be placed is.

Further, the fixing portion 3 includes a first plate member 301 and a second plate member 302 disposed at an angle to each other, and the inclination degree of the battery cell 2 can be changed by changing the angle between the first plate member 301 and the bottom plate 101. The first plate member 301 and the second plate member 302 each extend in the length direction of the battery cell 2, the first plate member 301 and the second plate member 302 are respectively connected to the bottom plate 101, preferably, the width of the first plate member 301 is greater than the width of the second plate member 302, the width of the bottom wall surface of the battery cell 2 is slightly greater than the width of the first plate member 301, and the bottom wall surface of the battery cell 2 is attached to the first plate member 301.

Furthermore, the number of the fixing portions 3 is plural, and the plural fixing portions 3 are sequentially arranged along the stacking direction of the plural battery cells 2 in one of the battery cells 2, so that the bottom wall of each battery cell 2 in one row faces the first plate member 301 of one fixing portion 3, thereby the bottom of each battery cell 2 can be supported by the fixing portion 3, preferably, the battery cells 2 and the fixing portions 3 can be fixed by gluing or welding, etc., and it is ensured that each battery cell 2 can be kept in a stable state in the casing 1.

Further, a triangular area 303 is formed between the first plate member 301 and the second plate member 302 and the bottom plate 101, so that a hollow cavity is formed between the bottom plate 101 and the fixing portion 3, which not only plays a role of reducing weight, but also can enhance the rigidity of the bottom plate 101.

Preferably, a plurality of mounting holes 3011 are formed on the first plate member 301 of each fixing portion 3 at certain intervals, an explosion-proof valve is disposed on the bottom wall surface of each cell 2, and the shape of the mounting holes 3011 is adapted to the shape of the explosion-proof valve, so that the explosion-proof valve of each cell 2 is correspondingly disposed in one mounting hole 3011, which not only can ensure that the cells 2 are smoothly stacked and avoid the explosion-proof valve from generating structural interference, but also can form a sufficient expansion space in the triangular region 303.

Preferably, there is cooling medium to flow in the triangular space 303, and the bottom wall face of electricity core 2 is fixed through heat-conducting glue with first board component 301 for the heat that electricity core 2 produced can be transmitted to first board component 301 and absorbed by the cooling medium in the triangular space 303, plays the effect of heat dissipation, cooling to electricity core 2, effectively reduces this battery package and takes place the risk of thermal runaway.

Further, the embodiment that this application provided still includes a plurality of pieces 6 that converge, and piece 6 that converge specifically can be the busbar among the prior art, and each electric core 2 is provided with positive post and negative pole towards one side wall interval of apron 103, or the both ends of each electric core 2 are provided with positive post and negative pole respectively, and the busbar is arranged in connecting the utmost point post of the different polarities of two adjacent electric cores 2 in one row to connect and switch on two electric cores 2.

Further, the battery pack provided by the application further includes a first limiting part 4 and a second limiting part 5, specifically, a first limiting part 4 is provided between a first battery cell 2 of the plurality of battery cells 2 in each row and the sidewall plate 102, a second limiting part 5 is provided between a last battery cell 2 of the plurality of battery cells 2 in each row and the sidewall plate 102, and the first limiting part 4 and the second limiting part 5 can support the plurality of battery cells 2 in each row, so as to ensure stability of the plurality of battery cells 2 in the housing 1.

To sum up, the battery package simple structure that this application provided, the rationally distributed of electric core, the inner space of make full use of battery package casing improves the current density of this battery package to a certain extent to electric core and casing need not supporting use, and the position of the relative fixed part of accessible regulation electric core and then change the degree of inclination of electric core in the casing, so that not unidimensional electric core (in certain extent) can be encapsulated in the casing.

An embodiment of the present application further provides a vehicle, including the battery pack described in any of the above embodiments, so that all beneficial technical effects of the battery pack are achieved, and details are not repeated herein.

The vehicle that this application embodiment provided specifically can be new forms of energy vehicle.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A battery pack, comprising:

the shell comprises a bottom plate, and the bottom plate is provided with a fixing part;

the battery cell is arranged on the fixing portion, the battery cell is arranged in the shell in an inclined mode, and a preset angle is formed between the battery cell and the bottom plate of the shell, so that the battery cell can be contained in the shell.

2. The battery pack of claim 1, wherein the housing further comprises a side wall enclosure disposed on the bottom plate and a cover plate disposed on an end of the side wall enclosure remote from the bottom plate;

the height of the battery cell obliquely arranged in the shell is not larger than the distance between the cover plate and the bottom plate.

3. The battery pack of claim 1, wherein the securing portion comprises a first plate member and a second plate member disposed at an angle to each other, the first plate member and the second plate member being coupled to the base plate, respectively, and the cell being coupled to the first plate member.

4. The battery pack according to claim 3, wherein a triangular region is formed between the first plate member, the second plate member, and the bottom plate, and a cooling medium flows in the triangular region.

5. The battery pack according to claim 3, wherein the battery cell is provided with an explosion-proof valve, and the first plate member is formed with a mounting hole having a shape that matches the shape of the explosion-proof valve.

6. The battery pack of claim 2, wherein the number of the battery cells is multiple, the multiple battery cells are divided into M (M ≧ 1) rows in the housing, and each row includes N (N ≧ 1) battery cells.

7. The battery pack according to claim 6, wherein the number of the cells in each column is plural, and the plural cells are sequentially stacked in a thickness direction of the cells.

8. The battery pack according to claim 6, further comprising a junction piece, wherein positive posts and negative posts are disposed on a side wall surface of the battery cell facing the cover plate at intervals, or positive posts and negative posts are disposed at two ends of the battery cell distributed along the length direction of the battery cell, respectively, and the junction piece is used for connecting posts of different polarities of any two adjacent battery cells in a plurality of battery cells in a row.

9. The battery pack of any one of claims 6-8, wherein a stop is disposed between the cell and the sidewall enclosure.

10. A vehicle characterized by comprising the battery pack according to any one of claims 1 to 9.

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