Cover body, battery pack and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a cover body, a battery pack and a vehicle, the cover body comprises: a main body, the main body comprises connecting parts and recessed parts which are alternately arranged along a first preset direction, and the recessed parts sink relative to the connecting parts; according to the cover body provided by the invention, an original integral main body is structurally divided into a plurality of surface structures with smaller sizes, and the rigidity of a part structure is inversely proportional to the cubic of a force arm, so that the rigidity of the part structure is improved, and the rigidity of the part structure is improved. The force arm of a single face structure smaller in size is smaller, so that the torsion resistance of the single face structure is higher, the first reinforcing structure is arranged on the connecting part, the first reinforcing structure can improve the overall strength of the connecting part, meanwhile, the connecting part is divided into a plurality of small areas with smaller force arms, and therefore the torsion resistance of the connecting part is improved. And the local torsion resistance of the connecting part is further improved, so that each part of the main body is more difficult to generate rebound deformation.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a cover body, a battery pack and a vehicle. Background Art

[0002] As society's attention to environmental protection and sustainable development continues to increase, electric vehicles are also developing rapidly. Battery packs, as the energy source of electric vehicles, are an indispensable structure in electric vehicles. In order to ensure that electric vehicles have sufficient cruising range, larger battery packs are usually required to supply energy.

[0003] The volume of the existing battery pack is large, and the volume of the battery pack cover is also correspondingly large. When the vehicle is traveling on a twisting road, the body of the vehicle will undergo a certain torsional deformation. At this time, since the battery pack cover is a plate with an integral plane, this type of battery pack cover has a long lever arm and poor stiffness when subjected to external force. The battery pack cover will produce a large deformation along with the torsional deformation of the body. The battery pack cover will frequently deform and rebound during the vehicle's driving, causing abnormal noise, which seriously affects the driving experience of the electric vehicle. Utility Model Content

[0004] In view of this, the present application provides a cover body, a battery pack and a vehicle to solve the problem that the existing battery pack cover is prone to deformation and rebound, thereby generating abnormal noise.

[0005] In order to achieve the above purpose, the technical solution of this application is implemented as follows:

[0006] In a first aspect, the present application provides a cover body, comprising: a main body, the main body comprising a connecting portion and a recessed portion alternately arranged along a first preset direction, the recessed portion being sunken relative to the connecting portion; a first reinforcement structure, at least one first reinforcement structure being provided on the connecting portion, and the connecting portion being divided into a plurality of areas by the first reinforcement structure.

[0007] Beneficial effect: The main body of the cover body is formed by alternating connecting parts and recessed parts, and the original integral main body is structurally divided into a plurality of smaller surface structures. Since the stiffness of the parts structure is inversely proportional to the cube of the force arm, the force arm of a single smaller surface structure is smaller, and thus the single surface structure has a stronger anti-torsion ability. This form of main body has a stronger local anti-torsion ability. At the same time, a first reinforcing structure is arranged at the connecting part. The first reinforcing structure can not only improve the overall strength of the connecting part, but also divide the connecting part into a plurality of smaller areas with smaller force arms, further improving the local anti-torsion ability of the connecting part, making it more difficult for various parts of the main body to rebound and deform, effectively solving the problem that the existing battery pack cover is prone to deformation and rebound, thereby producing abnormal noise.

[0008] In a possible implementation of the present application, the first reinforcement structure includes a protrusion, and the protrusion extends along a first preset direction.

[0009] Beneficial effect: When the raised part is provided, there is no need to change the surface structure of the connecting part, which facilitates processing and manufacturing.

[0010] In a possible implementation of the present application, the first reinforcement structure further includes at least one first reinforcement rib, the protrusion and the corresponding connecting portion together form a cavity, and the first reinforcement rib is arranged at the connecting portion and located in the cavity.

[0011] Beneficial effect: The first reinforcing rib can further strengthen the local rigidity of the connection part and effectively improve the local torsional resistance of the connection part.

[0012] In a possible implementation of the present application, at least one second reinforcement structure is further included, and the second reinforcement structure is arranged in the recessed portion.

[0013] Beneficial effect: Providing the second reinforcement structure can further enhance the rigidity of the recessed portion.

[0014] In a possible implementation of the present application, the second reinforcement structure includes a reinforcement beam and a connecting member, the reinforcement beam is arranged along an extension direction of the recessed portion, and the reinforcement beam is connected to the recessed portion through the connecting member.

[0015] Beneficial effect: Providing a reinforcing beam can effectively enhance the anti-torsion capacity of the depressed portion and prevent rebound deformation from occurring at the depressed portion.

[0016] In a possible implementation of the present application, at least one fastening component is further included, and the main body is connected to the shell of the battery pack through the fastening component.

[0017] Beneficial effect: By strengthening the connection between the middle part of the main body and the shell of the battery pack, the anti-torsion ability of the middle part of the main body is improved, and the form is simple and effective.

[0018] In a possible implementation of the present application, at least one third reinforcement structure is further included, and the at least one third reinforcement structure is arranged in the recessed portion and the connecting portion.

[0019] Beneficial effect: The third reinforcement structure can strengthen the rigidity of the larger planes on the recessed portion and the connecting portion, and prevent the recessed portion and the connecting portion from being locally insufficiently rigid and causing rebound deformation.

[0020] In a possible implementation of the present application, the third reinforcement structure includes a second reinforcement rib, and the second reinforcement rib is arranged on the main body in a bent shape.

[0021] Beneficial effect: The bent second reinforcing rib has a simple structure and is convenient for fixing and installing.

[0022] In a second aspect, the present application provides a battery pack, which includes: a shell; a battery cell, which is arranged in the shell; and the above-mentioned cover body, which is connected to the shell.

[0023] In a third aspect, the present application provides a vehicle, comprising: the above-mentioned cover body, or the above-mentioned battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a cover body provided in an embodiment of the present application.

[0025] Reference numerals:

[0026] 1. Main body; 101. Connecting part; 102. Recessed part; 2. First reinforcing structure; 201. Protruding part; 202. First reinforcing rib; 3. Second reinforcing structure; 301. Reinforcing beam; 302. Reinforcing connector; 4. Fastening part; 5. Third reinforcing structure; 6. Shell; 7. Installing connector. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0028] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0029] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0030] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0031] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0032] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0033] like Figure 1 As shown, an embodiment of the present application provides a cover body, including: a main body 1 and a first reinforcement structure 2, the main body 1 includes a connecting portion 101 and a recessed portion 102 alternately arranged along a first preset direction, and the recessed portion 102 is sunken relative to the connecting portion 101; at least one first reinforcement structure 2 is provided on the connecting portion 101, and the connecting portion 101 is divided into multiple areas by the first reinforcement structure.

[0034] The cover body of the present embodiment is formed by alternating connecting parts 101 and recessed parts 102 to form a main body 1 of the cover body. The originally integral main body 1 is structurally divided into a plurality of smaller surface structures. Since the stiffness of the component structure is inversely proportional to the cube of the force arm, the force arm of a single smaller surface structure is smaller, and thus the single surface structure has a stronger anti-torsion capability. This form of main body 1 has a stronger local anti-torsion capability. At the same time, a first reinforcement structure 2 is provided at the connecting part 101. The first reinforcement structure 2 not only improves the overall strength of the connecting part 101, but also divides the connecting part 101 into a plurality of smaller areas with smaller force arms, further improving the local anti-torsion capability of the connecting part 101, making it more difficult for various parts of the main body 1 to rebound and deform, thereby effectively solving the problem that the existing battery pack cover is prone to deformation and rebound, thereby generating abnormal noise.

[0035] The first preset direction refers to Figure 1 The arrow in the middle points to the “longitudinal” direction.

[0036] In this embodiment, it should be noted that the surface structure is the connecting portion 101 and the recessed portion 102; the alternating arrangement of the connecting portion 101 and the recessed portion 102 means that the connecting portion 101 and the recessed portion 102 are alternately connected to form the main body 1, and the connecting portion 101 and the recessed portion 102 can be integrally formed to form the main body 1, or can be manufactured separately and then alternately connected together through fixed connection methods such as welding and fastener connection to form the main body 1.

[0037] In addition, in this embodiment, the number of connecting parts 101 and recessed parts 102 is not strictly limited. It can be one connecting part 101 and two recessed parts 102, one recessed part 102 and two connecting parts 101, or multiple connecting parts 101 and multiple recessed parts 102. It can be flexibly selected according to needs.

[0038] In some embodiments of the present application, the first reinforcement structure 2 includes a protrusion 201, and the protrusion 201 extends along a first preset direction. When the protrusion 201 is provided, there is no need to change the surface structure of the connecting portion 101, which facilitates processing and manufacturing.

[0039] For example, in some other embodiments, the first reinforcement structure 2 may also be a structure such as a recessed groove provided on the connection portion 101 or a reinforcement rib embedded in the connection portion 101 .

[0040] In the embodiments of the present application, it should be noted that there is no limitation on the connection form between the protrusion 201 and the connection part 101 , and they may be integrally manufactured or connected by a fixed connection form such as welding or fastening components 4 .

[0041] In some embodiments of the present application, the first reinforcement structure 2 also includes at least one first reinforcement rib 202. The protrusion 201 and the corresponding connection portion 101 together form a cavity. The first reinforcement rib 202 is arranged in the cavity. The first reinforcement rib 202 can further strengthen the local stiffness of the connection portion 101 and effectively improve the local torsional resistance of the connection portion 101.

[0042] Specifically, there is no limitation on the specific form of the first reinforcing rib 202 , which may be a straight reinforcing rib in the second preset direction or the first preset direction, or a reinforcing rib in the form of a curve or a broken line, which may be selected according to the needs.

[0043] Preferably, if Figure 1 The dotted line portion in the figure shows the location and form of the first reinforcing rib 202. There are multiple first reinforcing ribs 202 and each first reinforcing rib 202 is arranged in a "circular shape". This form of first reinforcing rib 202 is lighter in weight and has a better effect of improving local stiffness.

[0044] In some embodiments of the present application, at least one second reinforcement structure 3 is further included. The second reinforcement structure 3 is disposed in the recessed portion 102 . Providing the second reinforcement structure 3 can further improve the rigidity of the recessed portion 102 .

[0045] Among them, in this embodiment, there is no limitation on the number of the second reinforcement structures 3, which may be one or more. In addition, there is no limitation on the specific form of the second reinforcement structure 3, which may be a rod-shaped structure, a block-shaped structure or a frame structure, which can be selected according to the corresponding needs.

[0046] In some embodiments of the present application, the second reinforcement structure 3 includes a reinforcement beam 301 and a reinforcement connector 302. The reinforcement beam 301 is arranged along the extension direction of the recessed portion 102, and the reinforcement beam 301 is connected to the recessed portion 102 through the reinforcement connector 302. The provision of the reinforcement beam 301 can effectively enhance the anti-torsion ability of the recessed portion 102 and prevent rebound deformation from occurring at the recessed portion 102.

[0047] The second preset direction refers to Figure 1 The “lateral” direction indicated by the middle arrow, the second preset direction and the first preset direction in this embodiment are not strictly limited to the width direction or the length direction, and the second preset direction and the first preset direction are merely two directions perpendicular to each other.

[0048] In addition, in other embodiments, the second preset direction and the first preset direction may also be two directions with an angle greater than 90 degrees or less than 90 degrees, which can be selected according to manufacturing requirements and are not strictly limited here.

[0049] Specifically, there is no limitation on the material of the reinforcing beam 301 , which may be metal, plastic, or rubber, etc., and may be made according to strength requirements, as long as the torsional resistance of the recessed portion 102 can be enhanced.

[0050] Preferably, the reinforcing beam 301 is an aluminum alloy beam.

[0051] Furthermore, if Figure 1 As shown, the reinforcing beam 301 extends along the second preset direction and divides the recessed portion 102 into a plurality of smaller areas, and both ends and the middle portion of the reinforcing beam 301 are connected to the recessed portion 102 via reinforcing connectors 302 .

[0052] The reinforcing connector 302 may be a fastening component such as a screw, a bolt, or a rivet.

[0053] In some embodiments of the present application, the cover body also includes at least one fastening component 4, and the main body 1 is connected to the shell 6 of the battery pack through the fastening component 4. By strengthening the connection between the middle position of the main body 1 and the shell 6 of the battery pack, the anti-torsion ability of the middle position of the main body 1 is improved. The form is simple and effective.

[0054] Specifically, there is no specific limitation on the number and setting positions of the fastening components 4. The number of the fastening components 4 can be one or more. The position of the fastening component 4 only needs to be located in the middle of the main body 1. It can be located in the connecting part 101 or in the recessed part 102. A matching hole that matches the fastening component 4 can be set at the corresponding position. The fastening component 4 can be a bolt, a screw, a fixing pin, etc.

[0055] Preferably, if Figure 1 As shown, a plurality of through holes for the fastening components 4 to pass through are respectively arranged on both sides of the protruding portion 201 , and the fastening components 4 are arranged on both sides of the protruding portion 201 .

[0056] In some embodiments of the present application, the cover body also includes at least one third reinforcement structure 5, which is arranged on the recessed portion 102 and / or the connecting portion 101. The third reinforcement structure 5 can strengthen the rigidity of the larger plane on the recessed portion 102 and the connecting portion 101 to prevent the recessed portion 102 and the connecting portion 101 from causing rebound deformation due to insufficient local rigidity.

[0057] In some embodiments of the present application, the third reinforcement structure 5 includes a second reinforcement rib, and the second reinforcement rib is bent. The bent second reinforcement rib has a simple structure and is convenient for fixing and installing.

[0058] Specifically, Figure 1 As shown, there are multiple third reinforcement structures 5 , and part of the second reinforcement ribs on the main body 1 can be individually bent and arranged in the recessed portion 102 or the connecting portion 101 , and another part of the second reinforcement ribs on the main body 1 extend from the recessed portion 102 to the connecting portion 101 .

[0059] In this embodiment, if Figure 1 As shown, the edge of the main body 1 is also provided with a mounting connection hole for connecting to the shell 6. The main body 1 is connected to the shell 6 through a mounting connector 7, wherein the specific type of the mounting connector 7 is not limited, and preferably bolts and nuts are used for easy disassembly and assembly.

[0060] According to an embodiment of the present application, on the other hand, a battery pack is provided, which includes: a shell 6, a battery cell and the above-mentioned cover body, the battery cell is arranged in the shell 6, and the cover body is connected to the shell 6.

[0061] In this embodiment, the battery pack is connected to the vehicle body or components that need to be connected via connectors such as bolts.

[0062] According to an embodiment of the present application, in another aspect, a vehicle is provided, which includes: the above-mentioned cover body, or the above-mentioned battery pack.

[0063] The vehicle in this application may refer to a large car, a small car, a special-purpose car, etc., as long as the battery pack can be used. For example, according to the vehicle type, the vehicle in this application may be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV) or other vehicle types. Generally, a vehicle is provided with wheels, a power source, and a transmission system arranged between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, so that the wheels rotate, thereby driving the vehicle to travel.

[0064] It should be noted that in the embodiments of the present application, the type of the power source of the vehicle is not limited. For example, for a fuel vehicle, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; for a vehicle powered by other means, the power source may refer to a device that generates power.

[0065] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A cover body, characterized in that: include: A main body (1), the main body (1) comprising connecting parts (101) and recessed parts (102) arranged alternately along a first preset direction, the recessed parts (102) being arranged to be sunken relative to the connecting parts (101); A first reinforcing structure (2), wherein at least one of the first reinforcing structures (2) is disposed on the connecting portion (101), and the connecting portion (101) is divided into a plurality of regions by the first reinforcing structure (2).

2. The cover according to claim 1, characterized in that: The first reinforcement structure (2) comprises a protruding portion (201), and the protruding portion (201) extends along a first preset direction.

3. The cover according to claim 2, characterized in that: The first reinforcement structure (2) further comprises at least one first reinforcement rib (202), the protrusion (201) and the corresponding connection portion (101) together form a cavity, and the first reinforcement rib (202) is arranged in the cavity.

4. The cover according to any one of claims 1 to 3, characterized in that: It also includes at least one second reinforcement structure (3), wherein the second reinforcement structure is arranged in the recessed portion (102).

5. The cover according to claim 4, characterized in that: The second reinforcement structure (3) comprises a reinforcement beam (301) and a reinforcement connecting piece (302); the reinforcement beam (301) is arranged along the extension direction of the recessed portion (102), and the reinforcement beam (301) is connected to the recessed portion (102) via the reinforcement connecting piece (302).

6. The cover according to any one of claims 1 to 3, characterized in that: It also comprises at least one fastening component (4), and the main body (1) is connected to the shell (6) of the battery pack via the fastening component (4).

7. The cover according to any one of claims 1 to 3, characterized in that: It also comprises at least one third reinforcement structure (5), wherein the third reinforcement structure is arranged on the recessed portion (102) and / or the connecting portion (101).

8. The cover according to claim 7, characterized in that: The third reinforcement structure (5) comprises a second reinforcement rib, and the second reinforcement rib is in a bent shape.

9. A battery pack, characterized in that: include: Housing (6); A battery cell, arranged in the housing (6); The cover body according to any one of claims 1 to 8 is connected to the shell (6).

10. A vehicle, characterized in that: include: The cover according to any one of claims 1 to 8, or the battery pack according to claim 9.

Images