CN219779108U - Box, battery and vehicle - Google Patents

Abstract

The embodiment of the utility model provides a box body, a battery and a vehicle. The case body has a receiving chamber for receiving the battery cell. The mounting beam is located and holds the chamber and connects in the case body outward, and the mounting beam is including being used for the first surface of being connected with target structure, and first surface includes first part and second part, and first part and second part are the plane, and the plane that first part place and the plane that the second part place are parallel or crossing. The utility model can improve the reliability of the battery.

Description

Box, battery and vehicle

Technical Field

The present utility model relates to the field of battery technology, and more particularly, to a case, a battery, and a vehicle.

Background

Battery cells are widely used in electronic devices such as cellular phones, notebook computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy vehicles, electric toy ships, electric toy airplanes, electric tools, and the like.

In the development of battery technology, how to improve the reliability of a battery is one of the research directions in battery technology.

Disclosure of Invention

The utility model provides a box body, a battery and a vehicle, which can improve the reliability of the battery.

The embodiment of the utility model provides a box body, which comprises a box body and a mounting beam. The case body has a receiving chamber for receiving the battery cell. The mounting beam is located and holds the chamber and connects in the case body outward, and the mounting beam is including being used for the first surface of being connected with target structure, and first surface includes first part and second part, and first part and second part are the plane, and the plane that first part place and the plane that the second part place are parallel or crossing.

In the technical scheme, the first surface is arranged to comprise the first part and the second part, and the plane where the first part is located and the plane where the second part is located are parallel or intersected, and because the first part and the second part are not in the same plane, the first surface with the first part and the second part can be more matched with the chassis with mounting points not in the same plane, so that connection is convenient, and after connection in a threaded connection mode and the like is adopted, the mutually-fit chassis and the first surface are not easy to separate due to smaller space in a vibration working condition, the connection reliability of the mounting beam and the vehicle chassis is improved, namely the reliability of a battery is improved.

In some embodiments, the first portion and the second portion are aligned along the length of the mounting beam.

In the above technical scheme, the mounting beam has a larger size in the length direction compared with other directions, so that the first part and the second part are arranged along the length direction of the mounting beam, and the size of the first part and the second part in the length direction of the mounting beam can be increased so as to be matched with a chassis with a larger size.

In some embodiments, the first surface further comprises a transition portion, one end of the transition portion being connected to the first portion, the other end of the transition portion being connected to the second portion; wherein the transition portion and the first portion transition smoothly and/or the transition portion and the second portion transition smoothly.

In the technical scheme, the transition part is arranged to be in smooth transition with at least one of the first part and the second part, so that smoothness of the first surface can be increased, and friction and impact of the mounting beam with the chassis in the vibration process are reduced. And moreover, the structure with smooth transition is utilized to replace an included angle, so that the possibility of bending and breaking at the included angle can be reduced, and the reliability of the mounting beam is improved.

In some embodiments, the number of second portions is two, the two second portions being connected one to one with opposite ends of the first portion by the transition portion.

In the technical scheme, the number of the second parts is two, the connection area between the two second parts and the chassis can be increased, and the connection reliability of the chassis and the mounting beam is improved.

In some embodiments, the first portion is recessed relative to the second portion.

In the above technical solution, compared with the recess, the chassis generally has more protruding portions, and the first portion of the embodiment of the present utility model may form a good fit with the protruding portions of the chassis, so that the present utility model is applicable to chassis with more specifications.

In some embodiments, the number of first portions and the number of second portions are respectively a plurality, and the plurality of first portions and the plurality of second portions are alternately arranged.

In the technical scheme, the first parts and the second parts are alternately arranged to adapt to the chassis with more protruding parts and form good matching with the chassis.

In some embodiments, the mounting beam includes a first wall, a second wall, and two third walls, each of which is disposed opposite to the first wall in a first direction, the second direction intersecting the first direction, the first wall including a first surface, the third walls being connected to the box body.

In the above technical scheme, the mounting beam is arranged to comprise the first wall body, the second wall body and two third wall bodies, namely, the mounting beam is arranged to be of a hollow structure, so that the weight of the mounting beam can be reduced, namely, the weight of a battery is reduced, and the energy density of the battery is improved.

In some embodiments, the case body includes a bottom wall and a plurality of side walls connected to the bottom wall, the bottom wall and the plurality of side walls enclose a receiving cavity, and the third wall is connected to a surface of at least one side wall facing away from the receiving cavity.

In the technical scheme, the mounting beam is connected to the surface of the side wall deviating from the accommodating cavity, compared with the mounting beam connected to the bottom wall, the side wall is closer to the chassis of the vehicle, and the mounting beam is more convenient to be connected with the chassis.

In some embodiments, the first wall is provided with a first connection hole for connection with the target structure.

In the technical scheme, the first wall body is provided with the first connecting hole for the corresponding connecting piece to pass through, so that the connection of the mounting beam and the chassis is facilitated.

In some embodiments, the second wall is provided with a second connection hole for connection with the target structure, the second connection hole being disposed opposite the first connection hole.

In the above technical scheme, the second connecting hole opposite to the first connecting hole is provided for the connecting piece to pass through the first wall body and the second wall body at the same time, so that the mounting work of the connecting piece can be performed outside the mounting beam, and the operation is convenient. And the connecting piece is connected with the first wall body and the second wall body simultaneously, and the structural strength of the connection of the chassis and the mounting beam can be further increased.

In a second aspect, an embodiment of the present utility model further provides a battery, including the above-mentioned case and a battery unit, where the battery unit is disposed in the accommodating cavity.

In a third aspect, an embodiment of the present utility model further provides a vehicle, including the above-mentioned box and a vehicle body, where the vehicle body has a second surface for connecting with a mounting beam, the second surface includes a third portion and a fourth portion, the third portion is fixedly attached to the first portion, and the fourth portion is fixedly attached to the second portion.

In some embodiments, the second surface further comprises a connecting portion, one end of the connecting portion being connected to the third portion, the other end of the connecting portion being connected to the fourth portion; wherein the connecting portion and the third portion smoothly transition and/or the connecting portion and the fourth portion smoothly transition.

In the technical scheme, the connecting part is arranged to be in smooth transition with at least one of the third part and the fourth part, so that smoothness of the second surface can be increased, and friction and impact between the vehicle body and the mounting beam in the vibration process are reduced. And moreover, the structure of smooth transition is utilized to replace the included angle, so that the possibility of bending fracture at the included angle can be reduced, and the reliability of the vehicle body is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present utility model;

fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present utility model;

fig. 3 is a schematic structural view of a mounting beam in a box according to some embodiments of the present utility model;

fig. 4 is a schematic view of another structure of a mounting beam in a box according to some embodiments of the present utility model;

fig. 5 is a schematic structural view of a vehicle body and a mounting beam according to some embodiments of the present utility model.

Reference numerals of the specific embodiments are as follows:

1. a vehicle; 2. a battery; 3. a controller; 4. a motor; 5. a battery cell;

6. a case;

61. a case body; 611. a receiving chamber; 612. a bottom wall; 613. a sidewall; 6131. a first sidewall;

62. mounting a beam; 621. a first wall; 6211. a first surface; 6212. a first portion; 6213. a second portion; 6214. a transition portion; 6215. a first connection hole; 622. a second wall; 6221. a second connection hole; 623. a third wall;

7. a vehicle body; 71. a second surface; 711. a third section; 712. a fourth section; 713. a connection portion;

x, a first direction; y, second direction; z, third direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present utility model is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present utility model, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present utility model, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the utility model shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the utility model in any way.

The term "plurality" as used herein refers to two or more (including two).

In the present utility model, the battery cells may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, which is not limited in the embodiment of the present utility model. The battery cell may be in a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in this embodiment of the utility model.

Reference to a battery in accordance with an embodiment of the present utility model refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present utility model may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator. The battery cell mainly relies on metal ions to move between the positive pole piece and the negative pole piece to work. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector; the positive electrode current collector comprises a positive electrode coating area and a positive electrode lug connected to the positive electrode coating area, wherein the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode lug is not coated with the positive electrode active material layer. Taking a lithium ion battery monomer as an example, the material of the positive electrode current collector can be aluminum, the positive electrode active material layer comprises a positive electrode active material, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate and the like. The negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector comprises a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, wherein the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with the negative electrode active material layer. The material of the anode current collector may be copper, the anode active material layer includes an anode active material, and the anode active material may be carbon or silicon, or the like. The material of the separator may be PP (polypropylene) or PE (polyethylene), etc.

The battery cell further includes a case inside which a receiving chamber for receiving the electrode assembly is formed. The case may protect the electrode assembly from the outside to prevent foreign substances from affecting the charge or discharge of the electrode assembly.

The battery is typically connected to the vehicle chassis via outboard mounting beams to enable the battery to be mounted to the vehicle. The existing mounting beam is generally of a straight section structure, the connecting surface of the mounting beam and the chassis is also a plane, and for the chassis with mounting points not on the same plane, the straight beam structure is difficult to be completely matched with the chassis, so that the problem of inconvenient connection is caused, and the problem of connection failure is easy to occur in a vibration working condition.

In view of this, the present utility model provides a case including a case body and a mounting beam having a first surface connected to a vehicle chassis, the first surface including a first portion and a second portion, the first portion and the second portion being planar, the plane in which the first portion is located and the plane in which the second portion is located being parallel or intersecting. The first surface comprising two parts can be more matched with the chassis with mounting points not on the same plane, so that the connection is convenient, the connection reliability of the mounting beam and the chassis can be improved, and the connection failure possibility of the mounting beam and the chassis in the vibration working condition is reduced.

The battery box body described in the embodiment of the utility model is suitable for batteries and power utilization devices using the battery box body.

The electric device may be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the utility model does not limit the electric device in particular.

For convenience of explanation, the following examples will be described taking an electric device as an example of a vehicle.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present utility model.

As shown in fig. 1, the interior of the vehicle 1 is provided with a battery 2, and the battery 2 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 2 may be used for power supply of the vehicle 1, for example, the battery 2 may serve as an operating power source of the vehicle 1.

The vehicle 1 may further comprise a controller 3 and a motor 4, the controller 3 being arranged to control the battery 2 to power the motor 4, for example for operating power requirements during start-up, navigation and driving of the vehicle 1.

In some embodiments of the utility model, the battery 2 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1.

Fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present utility model;

as shown in fig. 2, the battery 2 includes a case 6 and a battery cell 5, the case 6 has a housing cavity 611, and the battery cell 5 is disposed in the housing cavity 611.

In the battery 2, the number of the battery cells 5 may be one or more. If there are multiple battery cells 5, the multiple battery cells 5 may be connected in series or parallel or a series-parallel connection, where a series-parallel connection refers to that the multiple battery cells 5 are connected in series or parallel. The plurality of battery cells 5 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 5 is fixed on the bearing part; of course, a plurality of battery cells 5 may be connected in series or parallel or series-parallel to form a battery module, and then connected in series or parallel or series-parallel to form a whole and fixed on the bearing member.

Fig. 3 is a schematic structural diagram of a mounting beam in a box according to some embodiments of the present utility model.

As shown in fig. 2 and 3, the present utility model also provides a case 6 including a case body 61 and a mounting beam 62, the case body 61 having a receiving chamber 611 for receiving the battery cell 5. The mounting beam 62 is located outside the accommodating cavity 611 and is connected to the case body 61, the mounting beam 62 includes a first surface 6211 for connection with a target structure, the first surface 6211 includes a first portion 6212 and a second portion 6213, the first portion 6212 and the second portion 6213 are both planar, and the plane in which the first portion 6212 is located and the plane in which the second portion 6213 is located are parallel or intersected.

The target structure of the embodiment of the utility model may be the chassis of the vehicle or other parts of the vehicle 1.

The plane in which the first portion 6212 and the plane in which the second portion 6213 are located in the embodiment of the present utility model are parallel or intersected, which means that the first portion 6212 and the second portion 6213 may be disposed in parallel, may be disposed directly in intersection, or may be disposed at intervals but the planes in which the first portion 6212 and the second portion 6213 are disposed intersect.

The mounting beam 62 of the embodiment of the present utility model may be a hollow structure or a solid structure.

The mounting beam 62 and the box body 61 in the embodiment of the present utility model may be integrally formed, welded or screwed.

Alternatively, the mounting beam 62 is manufactured in an integrally formed manner.

The first and second portions 6212, 6213 of embodiments of the utility model can mate with the surface of the chassis facing the mounting beam 62.

The first surface 6211 is configured to include the first portion 6212 and the second portion 6213, and the plane in which the first portion 6212 is located and the plane in which the second portion 6213 is located are parallel or intersect, because the first portion 6212 and the second portion 6213 are not in the same plane, the first surface 6211 with the first portion 6212 and the second portion 6213 can be more matched with the chassis with the mounting point not in the same plane, which is not only convenient for connection, but also, after connection by adopting a mode such as threaded connection, the mutually engaged chassis and the first surface 6211 are not easy to separate due to smaller space in the vibration working condition, so that the reliability of connection between the mounting beam 62 and the chassis of the vehicle 1 is increased, that is, the reliability of the battery 2 is improved.

In some embodiments, first portion 6212 and second portion 6213 are disposed in an aligned arrangement along the length of mounting beam 62.

The mounting beam 62 of the embodiment of the present utility model has a long strip structure, and thus has a length direction.

The mounting beam 62 has a larger dimension in the length direction than in other directions, so that the first portion 6212 and the second portion 6213 are aligned along the length direction of the mounting beam 62, and the dimension of the first portion 6212 and the second portion 6213 in the length direction of the mounting beam 62 can be increased to fit a chassis having a larger dimension.

In some embodiments, the first surface 6211 further comprises a transition portion 6214, one end of the transition portion 6214 being connected to the first portion 6212 and the other end of the transition portion 6214 being connected to the second portion 6213.

The first portion 6212 and the second portion 6213 of embodiments of the utility model are connected by a transition portion 6214, the transition portion 6214 being either a sloped plane or a curved plane. When the transition portion 6214 is a curved surface, the curvature of each portion of the curved surface may be the same or different.

Alternatively, the projection of the first portion 6212 onto the plane of the second portion 6213 is spaced from the second portion 6213.

Alternatively, the transition portion 6214 is a sloped plane, and the first portion 6212 and the second portion 6213 are each connected at an obtuse angle to the transition portion 6214.

Optionally, the first portion 6212 and the second portion 6213 are disposed in parallel.

The transition portion 6214 is provided so that the first portion 6212 and the second portion 6213 are not directly connected, and thus the spacing between the first portion 6212 and the second portion 6213 can be adjusted by the transition portion 6214 to facilitate matching with different chassis.

In some embodiments, the transition portion 6214 and the first portion 6212 transition smoothly and/or the transition portion 6214 and the second portion 6213 transition smoothly.

The transition portion 6214 and the first portion 6212 transition smoothly, meaning that the area where the transition portion 6214 connects with the first portion 6212 is curved, and the rest of the transition portion 6214 may be curved, planar or otherwise shaped.

The transition portion 6214 and the second portion 6213 transition smoothly, meaning that the region where the transition portion 6214 connects with the second portion 6213 is curved, and the rest of the transition portion 6214 may be curved, planar or otherwise shaped.

Illustratively, the transition portion 6214 of embodiments of the present utility model is formed by roll forming.

If the transition portion 6214 is connected at an angle to the first portion 6212 and/or the second portion 6213, the location of the angle may cause friction and impact with the chassis during vibration, resulting in damage to the chassis or mounting beam. Thus, providing the transition portion 6214 as a smooth transition with at least one of the first portion 6212 and the second portion 6213 may increase the smoothness of the first surface 6211 and reduce friction and impact of the mounting beam 62 with the chassis during vibration. And, utilize the structure of smooth transition to replace the contained angle, can reduce the possibility that the fracture takes place to buckle in contained angle department, improve the reliability of hanging beam 62.

In some embodiments, the number of second portions 6213 is two, with two second portions 6213 being connected one-to-one with opposite ends of the first portion 6212 by a transition portion 6214.

The second portion 6213, the transition portion 6214, the first portion 6212, the transition portion 6214 and the second portion 6213 of the embodiment of the present utility model are arranged in this order in the same direction.

Optionally, the second portion 6213, the first portion 6212 and the second portion 6213 are arranged in sequence along the length of the mounting beam 62.

In the embodiment of the present utility model, the two second portions 6213 may be located on the same plane or may be located on different planes. The degree of inclination of the two second portions 6213 may be the same or different. But the two second portions 6213 need to be on the same side of the first portion 6212.

In the embodiment of the present utility model, the first portion 6212 may be recessed toward the inside of the mounting beam 62 with respect to the two second portions 6213, or may be provided to protrude with respect to the two second portions 6213.

The number of the second parts 6213 is two, and the two second parts 6213 can increase the connection area with the chassis and improve the connection reliability of the chassis and the mounting beam 62.

In some embodiments, the first portion 6212 is recessed relative to the second portion 6213.

The first portion 6212 of the embodiment of the present utility model is recessed with respect to the second portion 6213, i.e., the first portion 6212 is recessed with respect to the second portion 6213 toward the interior of the mounting beam 62.

The first portion 6212 of embodiments of the present utility model may form a good fit with the convex portion of the chassis compared to the concave portion, thereby being able to accommodate chassis of more specifications.

In some embodiments, the number of first portions 6212 and the number of second portions 6213 are each a plurality, the plurality of first portions 6212 and the plurality of second portions 6213 being alternately arranged.

The degree of inclination of the plurality of first portions 6212 of embodiments of the present utility model may be the same or different. When the plurality of first portions 6212 are inclined to the same extent, the plurality of first portions 6212 may be located in the same plane or may be located in different planes. As is the second portion 6213, the present utility model will not be described in detail herein. However, the plurality of first portions 6212 are located on the same side of the plurality of second portions 6213. Specifically, the plurality of first portions 6212 are concave or convex relative to the plurality of second portions 6213.

The plurality of first portions 6212 and the plurality of second portions 6213 are alternately arranged to accommodate the larger number of chassis at the projections and to provide a good fit therewith.

In some embodiments, mounting beam 62 includes a first wall 621, a second wall 622, and two third walls 623 disposed opposite each other along a first direction X, the second direction Y intersecting first direction X, first wall 621 including a first surface 6211, third walls 623 being connected to case body 61.

Illustratively, the first wall 621, the second wall 622, and the two third walls 623 are integrally formed. Of course, other means of attachment, such as welding, may be used.

The third wall 623 of the present embodiment may be connected to the case body 61 by welding, bonding, screw connection, or the like.

Illustratively, the first wall 621 is formed using a flexible variable cross-section roll technique.

Optionally, the second direction Y is perpendicular to the first direction X.

The mounting beam 62 is configured to include the first wall 621, the second wall 622, and the two third walls 623, that is, the mounting beam 62 is configured to be a hollow structure, so that the weight of the mounting beam 62 can be reduced, that is, the weight of the battery 2 can be reduced, and the energy density of the battery 2 can be improved.

In some embodiments, the mounting beam 62 has openings at opposite ends along the third direction Z, and the openings are defined by a first wall 621, a second wall 622, and two third walls 623. The first direction X, the second direction Y and the third direction Z are intersected in pairs.

Optionally, the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

In some embodiments, the case body 61 includes a bottom wall 612 and a plurality of side walls 613, the plurality of side walls 613 are connected to the bottom wall 612, the bottom wall 612 and the plurality of side walls 613 enclose a receiving cavity 611, and the third wall 623 is connected to a surface of at least one side wall 613 facing away from the receiving cavity 611.

Attaching mounting beam 62 to the surface of side wall 613 facing away from receiving cavity 611 is facilitated by side wall 613 being closer to the chassis of vehicle 1 than by mounting beam 62 being attached to bottom wall 612.

In some embodiments, the plurality of side walls 613 includes two first side walls 6131 disposed opposite to each other along the second direction Y, the number of mounting beams 62 is two, and two mounting beams 62 are connected to the two first side walls 6131 one by one.

The two mounting beams 62 of the present embodiment may have the same shape or different shapes.

The number of the mounting beams 62 is two, and the two mounting beams 62 are connected to the surfaces of the two first side walls 6131, which deviate from the accommodating cavity 611, in a one-to-one correspondence manner, so that the reliability of the connection between the box 6 and the chassis, namely, the reliability of the battery 2, is improved.

In some embodiments, the first wall 621 is provided with a first connection hole 6215 for connecting with a target structure.

Illustratively, the number of first connecting apertures 6215 is a plurality. The first connection hole 6215 is for passing a connection member connecting the chassis and the mounting beam 62. Wherein the connecting piece can be a bolt or a rivet, etc.

The first connection hole 6215 is provided to at least one of the first and second portions 6212, 6213. Optionally, the first portion 6212 and the second portion 6213 are each provided with a first connection aperture 6215.

A first connecting hole 6215 is provided on the first wall 621 to allow a corresponding connecting member to pass through, so as to facilitate connection of the mounting beam 62 with the chassis.

Fig. 4 is a schematic view of another structure of a mounting beam in a box according to some embodiments of the present utility model.

Referring to fig. 3 and 4, in some embodiments, the second wall 622 is provided with a second connection hole 6221 for connecting with a target structure, and the second connection hole 6221 is disposed opposite to the first connection hole 6215.

Illustratively, the number of first and second connection holes 6215, 6221 is plural. The second connection hole 6221 is for passing a connection member connecting the chassis and the mounting beam 62. The second connecting holes 6221 and the first connecting holes 6215 may be disposed in a one-to-one opposite manner, or only a part of the first connecting holes 6215 and the second connecting holes 6221 may be disposed in a one-to-one opposite manner.

The second connecting hole 6221 opposite to the first connecting hole 6215 is provided for the connecting member to pass through the first wall 621 and the second wall 622 at the same time, so that the mounting work of the connecting member can be performed outside the mounting beam 62, and the operation is convenient. In addition, the connecting piece connects the first wall 621 and the second wall 622 at the same time, and the structural strength of the connection between the chassis and the mounting beam 62 can be further increased.

The embodiment of the utility model also provides a battery 2, which comprises the box 6 of the battery 2 and the battery unit 5, wherein the battery unit 5 is arranged in the accommodating cavity 611.

Fig. 5 is a schematic structural view of a vehicle body and a mounting beam according to some embodiments of the present utility model.

Referring to fig. 5, the embodiment of the utility model further provides a vehicle 1, including the above-mentioned box 6 and the vehicle body 7, where the vehicle body 7 has a second surface 71 for connecting with the mounting beam 62, the second surface 71 includes a third portion 711 and a fourth portion 712, the third portion 711 is fixedly attached to the first portion 6212, and the fourth portion 712 is fixedly attached to the second portion 6213.

The third portion 711 of the embodiment of the present utility model is fixedly attached to the first portion 6212, and the two may be connected by screwing, riveting, bonding, or the like. The fourth portion 712 is fixedly attached to the second portion 6213, which may be threaded, riveted, bonded, or the like.

The vehicle body 7 of the embodiment of the utility model includes a chassis. Illustratively, the chassis has a second surface 71.

The first portion 6212 and the third portion 711 of the vehicle 1 according to the embodiment of the present utility model are attached, and the fourth portion 712 and the second portion 6213 are attached, that is, the vehicle body 7 is in concave-convex fit with the mounting beam 62, so that the reliability of connection between the two is improved.

In some embodiments, the second surface 71 further includes a connection portion 713, one end of the connection portion 713 is connected to the third portion 711, and the other end of the connection portion 713 is connected to the fourth portion 712; wherein the connection portion 713 and the third portion 711 smoothly transition, and/or the connection portion 713 and the fourth portion 712 smoothly transition.

The smooth transition of the connection portion 713 and the third portion 711 means that the area where the connection portion 713 is connected to the third portion 711 is curved, and the remaining position of the connection portion 713 may be curved, planar, or other shape.

The smooth transition between the connection portion 713 and the fourth portion 712 means that the area where the connection portion 713 and the fourth portion 712 are connected is curved, and the rest of the connection portion 713 may be curved, planar, or other shape.

Providing the connecting portion 713 to smoothly transition with at least one of the third portion 711 and the fourth portion 712 may increase smoothness of the second surface 71, reducing friction and impact of the vehicle body 7 with the mounting beam 62 during vibration. In addition, the smooth transition structure is used for replacing the included angle, so that the possibility of bending fracture at the included angle can be reduced, and the reliability of the vehicle body 7 is improved.

In some embodiments, the number of fourth portions 712 is two, and two fourth portions 712 are connected to opposite ends of the third portion 711 one by a connecting portion 713.

Referring to fig. 2-4, an embodiment of the present utility model provides a case 6 of a battery 2, including a case body 61 and a mounting beam 62, wherein the case body 61 has a receiving cavity 611 for receiving a battery cell 5. The mounting beam 62 is located outside the accommodating cavity 611 and is connected to the case body 61, the mounting beam 62 includes a first surface 6211 for connection with a target structure, the first surface 6211 includes a first portion 6212 and a second portion 6213, the first portion 6212 and the second portion 6213 are both planar, and the plane in which the first portion 6212 is located and the plane in which the second portion 6213 is located are parallel or intersected. The first portion 6212 and the second portion 6213 are disposed in a line along the length of the mounting beam 62. The first surface 6211 further includes a transition portion 6214, one end of the transition portion 6214 being connected to the first portion 6212 and the other end of the transition portion 6214 being connected to the second portion 6213. The transition portion 6214 and the first portion 6212 smoothly transition, and the transition portion 6214 and the second portion 6213 smoothly transition. The number of second portions 6213 is two, and the two second portions 6213 are connected to opposite ends of the first portion 6212 one by one through a transition portion 6214. The first portion 6212 is recessed relative to the second portion 6213. The mounting beam 62 includes a first wall 621, a second wall 622, and two third walls 623, each disposed opposite to each other in a first direction X, the second direction Y intersecting the first direction X, the first wall 621 including a first surface 6211, the third walls 623 being connected to the box body 61. The mounting beam 62 has openings at opposite ends along the third direction Z, and the openings are defined by a first wall 621, a second wall 622, and two third walls 623. The first direction X, the second direction Y and the third direction Z are intersected in pairs.

The box body 61 includes a bottom wall 612 and a plurality of lateral walls 613, and a plurality of lateral walls 613 are connected in the bottom wall 612, and the bottom wall 612 encloses with a plurality of lateral walls 613 and establishes and hold the chamber 611, and a plurality of lateral walls 613 include two along the relative first lateral walls 6131 that set up of second direction Y, and the quantity of mount beam 62 is two, and two mount beams 62 one by one are connected in two first lateral walls 6131. The first wall 621 is provided with a first connection hole 6215 for connection with a target structure. The second wall 622 is provided with a second connection hole 6221 for connection with a target structure, the second connection hole 6221 being disposed opposite to the first connection hole 6215.

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

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (13)

1. A tank, comprising:

a case body having a receiving chamber for receiving the battery cell;

the mounting beam is positioned outside the accommodating cavity and connected with the box body, the mounting beam comprises a first surface used for being connected with a target structure, the first surface comprises a first part and a second part, the first part and the second part are planes, and the plane where the first part is positioned is parallel to or intersected with the plane where the second part is positioned.

2. The cabinet of claim 1, wherein said first portion and said second portion are aligned along a length of said mounting beam.

3. The case according to claim 1 or 2, wherein the first surface further comprises a transition portion, one end of the transition portion being connected to the first portion, the other end of the transition portion being connected to the second portion;

wherein the transition portion and the first portion transition smoothly and/or the transition portion and the second portion transition smoothly.

4. A housing according to claim 3, wherein the number of said second portions is two, and two of said second portions are connected one to opposite ends of said first portion via said transition portions.

5. The case of claim 4, wherein the first portion is recessed relative to the second portion.

6. A cabinet according to claim 3, wherein the number of the first portions and the number of the second portions are plural, respectively, and the plural first portions and the plural second portions are alternately arranged.

7. The cabinet of claim 1, wherein the mounting beam comprises a first wall, a second wall, and two third walls disposed opposite each other in a first direction, the second direction intersecting the first direction,

the first wall includes the first surface, and the third wall is connected to the tank body.

8. The cabinet of claim 7, wherein said cabinet body comprises a bottom wall and a plurality of side walls connected to said bottom wall, said bottom wall and a plurality of said side walls defining said receiving cavity,

the third wall body is connected to the surface of at least one side wall, which faces away from the accommodating cavity.

9. The case according to claim 7, wherein the first wall is provided with a first connection hole for connection with the target structure.

10. The case according to claim 9, wherein the second wall body is provided with a second connection hole for connection with the target structure, the second connection hole being disposed opposite to the first connection hole.

11. A battery, comprising:

a tank according to any one of claims 1 to 10; and

and the battery unit is arranged in the accommodating cavity.

12. A vehicle, characterized by comprising:

a cabinet according to any one of claims 1 to 10;

the vehicle body is provided with a second surface used for being connected with the mounting beam, the second surface comprises a third part and a fourth part, the third part is fixedly attached to the first part, and the fourth part is fixedly attached to the second part.

13. The vehicle of claim 12, wherein the vehicle is further characterized by,

the second surface further comprises a connecting part, one end of the connecting part is connected with the third part, and the other end of the connecting part is connected with the fourth part;

wherein the connecting portion and the third portion smoothly transition and/or the connecting portion and the fourth portion smoothly transition.