Cover plate, battery pack box body, battery pack and electric equipment

Abstract

The utility model relates to the technical field of battery packs, and provides a cover plate, a battery pack box body, a battery pack and electric equipment.The cover plate comprises a cover plate body, and a plurality of meshing racks are arranged at the edge of the cover plate body; one end of the meshing rack is connected with the cover plate body, and the other end of the meshing rack extends towards the outer side and can be bent and deformed under the action of external force. According to the scheme, through the arranged meshing rack, bending deformation can be conducted on the meshing rack under the action of external force, so that meshing connection can be conveniently formed between the meshing rack and an external component, and then mounting of the cover plate is conveniently achieved; compared with a mode of mounting and fixing by adopting bolts, the scheme has the advantages that the operation during assembly can be simpler, the working efficiency is high, and the application cost is lower.

Description

Technical Field

[0001] The present application relates to the technical field of battery packs, and in particular to a cover plate, a battery pack box, a battery pack and an electrical device. Background Art

[0002] At present, the battery pack case usually includes a lower case and a cover plate, and the cover plate and the lower case are usually fixed with bolts. At this time, it is necessary to open corresponding fixing holes at the edges of the cover plate and the lower case, and then the cover plate and the lower case are connected and fixed by passing the bolts through the fixing holes. However, with the continuous changes in market demand, the size of the battery pack case is getting larger and larger. The method of fixing with bolts not only requires additional hole processing for the lower case, increasing the process cost; but also the number of bolts is increasing, which not only leads to further increase in cost, but also requires torque measurement of the bolts during assembly, making the whole process time-consuming and laborious. Utility Model Content

[0003] In order to overcome at least one disadvantage of the above-mentioned prior art, the purpose of the present application is to provide a cover plate, a battery pack box, a battery pack and an electrical device.

[0004] The technical means adopted by this application to solve the above technical problems are:

[0005] On the one hand, the embodiment of the present application provides a cover plate, comprising a cover plate body, wherein a plurality of meshing racks are arranged at the edge of the cover plate body;

[0006] One end of the meshing rack is connected to the cover plate body, and the other end extends outward and can be bent and deformed under the action of external force.

[0007] In the embodiment scheme of the present application, by setting the engaging rack, the engaging rack can be bent and deformed under the action of external force, so as to form an engaging connection between the engaging rack and the external component, thereby facilitating the installation of the cover plate; compared with the method of installing and fixing with bolts, the operation of this scheme during assembly can be simpler, the operation efficiency is high, and the application cost is lower.

[0008] In some embodiments, the cover plate body includes a base plate and a flow channel plate, and a cooling flow channel is formed on the flow channel plate;

[0009] The base plate and the flow channel plate are fitted and connected to form an integrated structure.

[0010] In the embodiment of the present application, by providing the substrate and the flow channel plate, a cooling flow channel can be formed in the cover plate body, so that the cover plate can also function as a liquid cooling plate.

[0011] In some embodiments, the engaging rack is disposed on the substrate and / or the flow channel plate.

[0012] In some embodiments, the thickness of the meshing rack is consistent with the thickness of the cover body;

[0013] The thickness of the bite rack is set between 1-3 mm.

[0014] In some embodiments, the width of the bite rack is set between 10-20 mm.

[0015] In some embodiments, the spacing distance of the engaging racks is set between 20-120 mm.

[0016] On the other hand, an embodiment of the present application provides a battery pack case, comprising a lower case and the cover plate as described above;

[0017] The lower box body is provided with a plurality of engagement grooves corresponding to the engagement racks, and the engagement racks extend into the engagement grooves to form an engagement connection.

[0018] In the embodiment of the present application, the engagement groove is provided to facilitate cooperation with the engagement rack, and the engagement connection between the engagement rack and the engagement groove is used to achieve installation and fixation of the cover plate on the lower box body.

[0019] In some embodiments, the difference between the width of the bite groove and the width of the bite rack is set between 1-3 mm;

[0020] And / or, the difference between the height of the bite groove and the thickness of the bite rack is set between 1-2 mm.

[0021] On the other hand, an embodiment of the present application provides a battery pack, in which the battery pack case as described above is disposed.

[0022] In the embodiment of the present application, by applying the battery pack case in a battery pack, it is possible to improve the processing and assembly efficiency of the battery pack and reduce the application cost.

[0023] In another aspect, an embodiment of the present application provides an electrical device, in which the cover plate as described above is arranged;

[0024] Or, a battery pack as described above is arranged therein.

[0025] In the embodiment of the present application, by applying the cover plate or the battery pack in an electrical device, it is possible to reduce the production cost of the electrical device and thus improve the market competitiveness of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic structural diagram of an example lower cover plate of the present application.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle.

[0029] Figure 3 This is a schematic diagram of the structure of a battery pack according to one example of the present application.

[0030] Figure 4 for Figure 3 Schematic diagram of the structure at B in the figure.

[0031] Figure 5 This is a schematic diagram of the structure of a battery pack according to one example of the present application.

[0032] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle.

[0033] Marking Description:

[0034] 1-cover plate body, 11-base plate, 12-flow channel plate, 121-cooling flow channel;

[0035] 2-occlusal rack;

[0036] 3-lower box body, 31-engaging groove. DETAILED DESCRIPTION

[0037] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention, and the embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0038] It should be noted that: unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Similar reference numerals and letters represent similar items in the following drawings, and therefore, 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 to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] like Figure 1-Figure 6 As shown, a cover is provided in this embodiment, including a cover body 1, at the edge of which a plurality of meshing racks 2 are arranged; one end of the meshing rack 2 is connected to the cover body 1, and the other end extends outward and can bend and deform under the action of external force.

[0040] In some embodiments, the cover body 1 can be made of metal material, such as 3003MOD, 6 series aluminum alloy or steel cold plate.

[0041] In some embodiments, the meshing rack 2 and the cover body 1 are formed as an integral structure, for example, they can be manufactured by casting, punching, etc. In this structural form, compared with the conventional method of fastening with bolts, the present embodiment can reduce the subsequent use of machining to open holes on the cover body 1, and the process is simpler, which can facilitate the reduction of production costs.

[0042] In some embodiments, the extending direction of the engaging rack 2 is perpendicular to the side surface of the cover body 1 where it is located.

[0043] By setting the engaging rack 2, the engaging rack 2 can be bent and deformed under the action of external force, so that it is convenient to form an engaging connection between the engaging rack 2 and the external component, and then it is convenient to install the cover plate; compared with the method of installing and fixing with bolts, the operation of this embodiment during assembly can be simpler and more efficient, and the use of bolts and matching nuts is eliminated, and the overall application cost is lower.

[0044] As one application example, the cover plate body 1 includes a substrate 11 and a flow channel plate 12 , and a cooling flow channel 121 is formed on the flow channel plate 12 ; the substrate 11 and the flow channel plate 12 are fitted and connected to form an integrated structure.

[0045] In some embodiments, the cooling channel 121 on the channel plate 12 can be formed by stamping to further facilitate the processing of the cover plate body 1.

[0046] In some embodiments, the substrate 11 and the flow channel plate 12 may be brazed to form an integrated structure.

[0047] By providing the base plate 11 and the flow channel plate 12 , a cooling flow channel 121 can be formed in the cover plate body 1 , so that the cover plate can also function as a liquid cooling plate.

[0048] As one application example, the bite rack 2 may be provided only on the substrate 11. Alternatively, the bite rack 2 may be provided only on the flow channel plate 12. Alternatively, the bite rack 2 may be provided on both the substrate 11 and the flow channel plate 12, and the bite racks 2 therebetween may be combined to form a whole. Alternatively, the bite rack 2 may be provided on both the substrate 11 and the flow channel plate 12, and the bite racks 2 therebetween may be spaced apart from each other.

[0049] As an application example, the thickness of the meshing rack 2 can be set to be consistent with the thickness of the cover body 1.

[0050] In some embodiments, the thickness of the bite rack 2 is set between 1-3 mm.

[0051] In some embodiments, the width of the bite rack 2 is set between 10-20 mm, and the spacing distance of the bite racks 2 is set between 20-120 mm. For example, when the width of the bite rack 2 is set to 10 mm, the spacing distance between two adjacent bite racks 2 can be set to 50 mm; when the width of the bite rack 2 is set to 15 mm, the spacing distance between two adjacent bite racks 2 can be set to 70 mm; when the width of the bite rack 2 is set to 20 mm, the spacing distance between two adjacent bite racks 2 can be set to 120 mm.

[0052] On the other hand, Figure 3-Figure 6 As shown, in this embodiment, a battery pack case is provided, which includes a lower case 3 and the cover plate as described above; wherein, a plurality of engaging grooves 31 are provided on the lower case 3 corresponding to the engaging rack 2, and the engaging rack 2 extends into the engaging grooves 31 to form an engaging connection.

[0053] In some embodiments, the engagement groove 31 is disposed on the outer side surface of the lower box body 3 , and the depth of the engagement groove 31 is designed to be smaller than the thickness of the side wall of the lower box body 3 .

[0054] The engagement groove 31 is provided to facilitate the engagement with the engagement rack 2 after bending and deformation, and the engagement connection between the engagement rack 2 and the engagement groove 31 is used to realize the installation and fixation of the cover plate on the lower box body 3. Figure 5 , Figure 6 shown.

[0055] In some embodiments, the difference between the width of the engagement groove 31 and the width of the engagement rack 2 is set between 1-3 mm; for example, when the width of the engagement rack 2 is set to 15 mm, the width of the engagement groove 31 can be set to 17 mm, so that when the engagement rack 2 is matched with the engagement groove 31, a single-sided margin of 1 mm can be left in the width direction to absorb processing tolerances.

[0056] In some embodiments, the difference between the height of the engagement groove 31 and the thickness of the engagement rack 2 is set between 1-2 mm; for example, when the thickness of the engagement rack 2 is set to 1 mm, the height of the engagement groove 31 can be set to 2 mm, so that when the engagement rack 2 is matched with the engagement groove 31, a 1 mm margin can be left in the height direction to absorb the processing tolerance and facilitate confirmation of the engagement state of the engagement rack 2 in the engagement groove 31.

[0057] In another aspect, the present embodiment provides a battery pack, wherein the battery pack box as described above is disposed in the battery pack. By using the battery pack box in the battery pack, the processing and assembly efficiency of the battery pack can be improved and the application cost can be reduced.

[0058] On the other hand, this embodiment also provides an electrical device, in which the cover plate as described above or the battery pack as described above is arranged.

[0059] In some embodiments, the electrical equipment may be configured as an electrically driven transportation device, such as an electric car.

[0060] By applying the cover plate or the battery pack in an electrical device, the production cost of the electrical device can be reduced, thereby improving the market competitiveness of the electrical device.

[0061] The above description is only a specific implementation mode of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should also be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" 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 other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A cover plate, characterized in that: It comprises a cover plate body, and a plurality of meshing racks are arranged at the edge of the cover plate body; One end of the meshing rack is connected to the cover plate body, and the other end extends outward and can be bent and deformed under the action of external force.

2. The cover plate according to claim 1, characterized in that: The cover plate body comprises a base plate and a flow channel plate, and a cooling flow channel is formed on the flow channel plate; The base plate and the flow channel plate are fitted and connected to form an integrated structure.

3. The cover plate according to claim 2, characterized in that: The engaging rack is arranged on the base plate and / or the flow channel plate.

4. The cover plate according to any one of claims 1 to 3, characterized in that: The thickness of the meshing rack is consistent with the thickness of the cover plate body; The thickness of the bite rack is set between 1-3 mm.

5. The cover plate according to claim 4, characterized in that: The width of the meshing rack is set between 10-20 mm.

6. The cover plate according to claim 5, characterized in that: The spacing distance of the meshing racks is set between 20-120 mm.

7. A battery pack box, characterized in that: It comprises a lower box body and a cover plate as described in any one of claims 1 to 6; The lower box body is provided with a plurality of engagement grooves corresponding to the engagement racks, and the engagement racks extend into the engagement grooves to form an engagement connection.

8. The battery pack case according to claim 7, characterized in that: The difference between the width of the occlusal groove and the width of the occlusal rack is set between 1-3 mm; And / or, the difference between the height of the bite groove and the thickness of the bite rack is set between 1-2 mm.

9. A battery pack, characterized in that: A battery pack box as described in claim 7 or 8 is arranged therein.

10. An electrical device, characterized in that: A cover plate as described in any one of claims 1 to 6 is arranged therein; Or, a battery pack as described in claim 9 is arranged therein.

Images