Shell structure, battery box body and electric equipment

Abstract

The utility model relates to the technical field of power batteries, and provides a shell structure, a battery box body and electric equipment, the shell structure comprises a shell body and a protective structure layer, the shell body is provided with a first side surface used for touching an external object; the shape of the protective structure layer is matched with the shape of the first side surface, and the protective structure layer is solidified and formed on the first side surface and is integrated with the shell body. According to the scheme, the protective structure layer can replace the first side face to bear the influence of collision, ball hitting and the like, and therefore the effect of protecting the first side face is achieved; the protective structure layer is arranged to be formed on the first side face in a solidification mode, and compared with a bolt installation mode in the traditional technology, the overall application cost is lower, and installation is more convenient; in addition, the protection structure layer and the shell body can have higher integrity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, in particular to a shell structure, a battery box and an electric device. BACKGROUND

[0002] At present, the power battery of a new energy vehicle is usually fixedly installed at the bottom of the vehicle body, so that the power battery will be subjected to bottom bumping and ball hitting during the driving of the vehicle. In order to reduce the damage of the power battery caused by the bumping and ball hitting, a bottom guard plate is installed at the bottom of the power battery.

[0003] The bottom guard plate on the market is usually made of metal and is fixedly installed on the power battery by bolts. The manufacturing of the bottom guard plate needs to be mold-opened, and the overall cost is high and the cycle is long. Moreover, the number of bolts is large during installation, and the installation operation is time-consuming and laborious. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the purpose of the present application is to provide a shell structure, a battery box and an electric device.

[0005] The technical means adopted by the present application to solve the above technical problems is:

[0006] In one aspect, the shell structure provided in the present application comprises:

[0007] A shell body, wherein the shell body has a first side surface for coping with external object bumping;

[0008] A protective structure layer, wherein the protective structure layer is shaped to match the shape of the first side surface, and is solidified and formed on the first side surface and integrated with the shell body.

[0009] In some embodiments, the edge of the protective structure layer is flush with the edge of the first side surface.

[0010] Alternatively, the first side surface falls within the coverage range of the protective structure layer.

[0011] In some embodiments, the thickness of the protective structure layer is set to be between 3-15mm.

[0012] In some embodiments, the protective structure layer comprises a buffer structure layer and a wear-resistant structure layer, the buffer structure layer is solidified and formed on the first side surface, and the wear-resistant structure layer is solidified and formed on the buffer structure layer.

[0013] In some embodiments, the thickness ratio between the wear-resistant structure layer and the buffer structure layer is between 1:3 and 1:14.

[0014] In some embodiments, the protective structural layer further comprises an inner structural layer, the inner structural layer is solidified and formed on the first side, and the buffer structural layer is solidified and formed on the inner structural layer.

[0015] The rigidity of the inner structural layer is not less than the rigidity of the wear-resistant structural layer.

[0016] In some embodiments, the thickness ratio between the inner structural layer and the wear-resistant structural layer is between 1:1 and 1:1.5.

[0017] In some embodiments, the first side is arranged with a concave-convex structure.

[0018] In another aspect, the application provides a battery box body, which is provided with the shell structure as described above.

[0019] In another aspect, the application provides a power consumption device, which is provided with the shell structure as described above.

[0020] Or, the power consumption device is provided with the battery box body as described above.

[0021] Compared with the prior art, the application has at least the following beneficial effects:

[0022] In the application, the protective structural layer can replace the first side to bear the impact of knocking, ball hitting and the like, thereby playing a protective role on the first side. Compared with the traditional bolt mounting mode, the solidification and formation of the protective structural layer on the first side has lower overall application cost and is more convenient to install. Moreover, the protective structural layer and the shell body have higher integration. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments of the application. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Fig. 1 It is a partial structure schematic view of the shell structure according to an example of the application.

[0025] Fig. 2 It is a partial structure schematic view of the shell structure according to an example of the application.

[0026] Fig. 3Figure 1 is a schematic view of the bottom side of a battery case according to an example of the present application.

[0027] Legend:

[0028] 1 - housing body, 11 - first side, 111 - concave-convex structure, 12 - surrounding structure;

[0029] 2 - protective structure layer, 21 - buffer structure layer, 22 - wear-resistant structure layer, 23 - built-in structure layer. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict. In the following description, a large number of specific details are described in order to facilitate a full understanding of the present application, and the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] It should be noted that: unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application. Similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinction and cannot be understood as indicating or implying relative importance.

[0032] As shown in Figs. 1 to 3 the present embodiment, a housing structure is provided, comprising:

[0033] a housing body 1, the housing body 1 having a first side 11 for coping with external touch;

[0034] a protective structure layer 2, the shape of the protective structure layer 2 being adapted to the shape of the first side 11, the protective structure layer 2 being solidified and formed on the first side 11 and integrated with the housing body 1.

[0035] In some embodiments, the first side 11 can be arranged as a bottom side, a top side or a peripheral side of the shell body 1, and the position of the first side 11 is mainly determined according to the approaching direction of the external object; for example, when the external object approaches the shell body 1 from the bottom, the first side 11 is the bottom side of the shell body 1.

[0036] It can be understood that the number of the first side 11 is not unique, for example, when the external object approaches the shell body 1 from the bottom and the periphery, the number of the first side 11 is at least two, and the protective structure layer 2 is arranged on each of the first sides 11 to reduce the impact of the external object on the first side 11.

[0037] In some embodiments, referring to Fig. 3 The shell body 1 is provided with a surrounding structure 12, and the surrounding structure 12 forms a solidification molding space of the protective structure layer 2, so as to control the molding shape and thickness of the protective structure layer 2. After the protective structure layer 2 is solidified and molded, the surrounding structure 12 is removed.

[0038] Compared with the traditional metal bottom guard plate arrangement, the surrounding structure 12 of the present embodiment does not need to be opened, and the application cost is lower. Moreover, the solidification molding method can be compatible with various surface structures of the shell body 1, and is convenient for popularization and application.

[0039] As one of the application examples, the edge of the protective structure layer 2 is flush with the edge of the first side 11.

[0040] Or, the first side 11 falls within the coverage range of the protective structure layer 2.

[0041] In some embodiments, the edge of the protective structure layer 2 is flush with the edge of the first side 11.

[0042] In some embodiments, the first side 11 completely falls within the coverage range of the protective structure layer 2; at this time, the edge of the protective structure layer 2 is protruded than the edge of the first side 11, so that the protruded part can shield the installation gap between the first side 11 and the external member.

[0043] As one of the application examples, the thickness of the protective structure layer 2 is arranged to be between 3-15mm.

[0044] In some embodiments, the thickness of the protective structure layer 2 is arranged to be any integer value in the range of 3-15mm.

[0045] As one of the application examples, the protective structure layer 2 comprises a buffer structure layer 21 and a wear-resistant structure layer 22, the buffer structure layer 21 is solidified and formed on the first side surface 11, and the wear-resistant structure layer 22 is solidified and formed on the buffer structure layer 21.

[0046] In some embodiments, the buffer structure layer 21 is made of foaming material, such as resin material or organic silicon material, so that the buffer structure layer 21 can have certain compression elasticity after being formed, thereby buffering the impact.

[0047] In some embodiments, the wear-resistant structure layer 22 is made of material with high wear resistance, such as resin material or AB component glue, so that the wear-resistant structure layer 22 can have high hardness after being formed to resist deformation caused by impact.

[0048] As one of the application examples, the thickness ratio between the wear-resistant structure layer 22 and the buffer structure layer 21 is between 1:3 and 1:14.

[0049] In some embodiments, the thickness ratio between the wear-resistant structure layer 22 and the buffer structure layer 21 is 1:4.

[0050] As one of the application examples, the protective structure layer 2 further comprises an internal structure layer 23, the internal structure layer 23 is solidified and formed on the first side surface 11, and the buffer structure layer 21 is solidified and formed on the internal structure layer 23.

[0051] The rigidity of the internal structure layer 23 is not less than the rigidity of the wear-resistant structure layer 22.

[0052] In some embodiments, the internal structure layer 23 is made of material with high rigidity, such as resin material, AB component glue or polyurea material, so that the internal structure layer 23 can have high rigidity to protect the surface of the first side surface 11. At this time, the protective structure layer 2 is a three-layer structure.

[0053] As one of the application examples, the thickness ratio between the internal structure layer 23 and the wear-resistant structure layer 22 is between 1:1 and 1:1.5.

[0054] In some embodiments, the thickness ratio between the internal structure layer 23 and the wear-resistant structure layer 22 is 1:1.

[0055] As one of the application examples, referring to Fig. 3 As shown in the figure, the first side surface 11 is arranged with concave-convex structure 111.

[0056] The uneven structure 111 can be used to increase the surface area of ​​the first side 11, thereby enhancing the adhesion strength between the protective structure layer 2 and the first side 11, making the protective structure layer 2 more reliable after solidification.

[0057] On the other hand, this embodiment provides a battery housing, on which the housing structure described above is provided.

[0058] In some embodiments, the housing body 1 is the lower housing of the battery box, the first side 11 is the bottom end face of the lower housing, and the protective structure layer 2 can function as a bottom protective plate after solidification.

[0059] In some embodiments, such as Fig. 3 As shown, a water-cooling plate is provided at the bottom of the lower casing of the battery box, and the flow channel structure of the water-cooling plate forms the concave-convex structure 111.

[0060] On the other hand, this embodiment provides an electrical device, which is provided with the housing structure described above;

[0061] Alternatively, the electrical equipment may be equipped with a battery box as described above.

[0062] In some embodiments, the electrical equipment is a transportation vehicle, including automobiles, industrial transport vehicles, etc.

[0063] Compared with the prior art, the solution of this embodiment has at least the following beneficial effects:

[0064] In this embodiment, the protective structure layer 2 can replace the first side 11 to withstand the impact of bumps, ball strikes, etc., thereby protecting the first side 11. The protective structure layer 2 is solidified on the first side 11, which has a lower overall application cost and is more convenient to install than the traditional bolt installation method. Moreover, the protective structure layer 2 and the shell body 1 can have a higher degree of integration.

[0065] The above description is merely a specific embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should also be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0066] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify a subject or action, without necessarily requiring or implying any such actual relationship or order between such subjects or actions. Moreover, the terms "comprising", "containing", or any other similar term are intended to encompass non-exclusive inclusions, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a", "contains... a", or "includes... a" does not, without further qualification, exclude the presence of additional elements of the same name in the process, method, article, or apparatus.

Claims

1. A housing structure characterized by, The shell body has a first side surface for coping with external object touching; The protective structure layer is integrally formed with the shell body. The edge of the protective structure layer is flush with the edge of the first side surface.

2. The housing structure of claim 1, wherein The first side surface falls within the coverage of the protective structure layer. The thickness of the protective structure layer is set between 3-15mm.

3. The housing structure of claim 2, wherein, The protective structure layer comprises a buffer structure layer and a wear-resistant structure layer, the buffer structure layer is integrally formed on the first side surface, and the wear-resistant structure layer is integrally formed on the buffer structure layer.

4. The housing structure according to any one of claims 1 to 3, characterized in that, The thickness ratio between the wear-resistant structure layer and the buffer structure layer is between 1:3 and 1:

14.

5. The housing structure of claim 4, wherein, The protective structure layer further comprises an internal structure layer, the buffer structure layer is integrally formed on the internal structure layer.

6. The housing structure of claim 4, wherein The rigidity of the internal structure layer is not less than the rigidity of the wear-resistant structure layer. The thickness ratio between the internal structure layer and the wear-resistant structure layer is between 1:1 and 1:1.

5.

7. The housing structure of claim 6, wherein The first side surface is arranged with a concave-convex structure.

8. The housing structure of any one of claims 1, 5, 7, wherein, The battery box is provided with the shell structure as claimed in any one of claims 1-8.

9. A battery case characterized by comprising: The electric equipment is provided with the shell structure as claimed in any one of claims 1-8.

10. An electric device, characterized by Or, the electric equipment is provided with the battery box as claimed in claim 9. ​

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