Cover body reinforcing structure, battery pack and vehicle

Abstract

The embodiment of the utility model provides a cover body reinforcing structure, a battery pack and a vehicle, and relates to the technical field of power batteries. The cover body reinforcing structure comprises a plurality of pressing strips. And at least one first mounting hole is formed in the pressing strip. And avoiding notches are formed in the ends of the pressing strips, the avoiding notches in every two adjacent pressing strips jointly define a second mounting hole, and the first mounting holes and the second mounting holes are used for pressing the pressing strips to the cover body through fasteners. The receding notches are formed in the ends of the pressing strips, the second mounting holes are defined by every two adjacent receding notches, and when the fasteners are mounted through the second mounting holes, the ends of every two adjacent pressing strips can be pressed tightly at the same time, so that the pressing strips effectively press the connecting parts, the pressing strips can be thinned, and the service life of the pressing strips is prolonged. Therefore, the overall weight of the battery pack is reduced, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, in particular to a cover body reinforcing structure, a battery pack and a vehicle. BACKGROUND

[0002] In the battery pack, the battery cell group is arranged in the frame, and the upper cover is arranged on the frame to package the battery cell group. The edge of the upper cover and the side plate of the frame are provided with a sealing gasket, and are connected by a fastening structure such as a bolt, a rivet nut, etc.

[0003] In the prior art, in order to enhance the structural strength of the edge of the upper cover, a pressing strip is usually arranged at the edge position of the upper cover to improve the stability of the connection between the upper cover and the frame. At the same time, the pressing strip can also prevent the edge of the upper cover from being locally raised, so that the fit between the edge of the upper cover and the side plate of the frame is higher, and the sealing performance of the sealing gasket is improved.

[0004] However, in the prior art, the thickness of the pressing strip is large, resulting in high pressing cost. After thinning the pressing strip, the end of the pressing strip is prone to be raised, resulting in poor pressing effect on the edge of the upper cover. CONTENT OF THE INVENTION

[0005] The present application provides a cover body reinforcing structure, a battery pack and a vehicle to solve the problem that the pressing strip is prone to be raised at the end.

[0006] In a first aspect, the present application provides a cover body reinforcing structure, comprising a plurality of pressing strips;

[0007] At least one first mounting hole is arranged on the pressing strip;

[0008] The end of the pressing strip is provided with an avoidance gap, and the avoidance gaps on the two adjacent pressing strips are collectively arranged to form a second mounting hole, and the first mounting hole and the second mounting hole are used to press the pressing strip on the cover body by the fastener.

[0009] In a possible implementation manner, the cover body reinforcing structure provided by the present application is provided, and the two ends of the pressing strip are respectively provided with a butt joint part, and the avoidance gap is arranged on the butt joint part;

[0010] The butt joint parts of the two adjacent pressing strips are matched to make the two avoidance gaps opposite.

[0011] In a possible implementation manner, the cover body reinforcing structure provided by the present application is provided, and the width of the butt joint part is less than the width of the pressing strip;

[0012] The butt joint parts of the two adjacent pressing strips are misaligned, the avoidance gap is arranged on one side of the butt joint part, and the avoidance gap faces the other butt joint part.

[0013] In a possible implementation, the cover body reinforcing structure provided in the present application has a butt joint part with a width of half of the width of the pressing strip, and the butt joint part is located at the edge of the end of the pressing strip.

[0014] In a possible implementation, the cover body reinforcing structure provided in the present application has a butt joint part including a connecting segment and a fitting segment.

[0015] The connecting segment is connected to the fitting segment and the pressing strip respectively, and has an included angle with the fitting segment, the avoiding gap is arranged on the fitting segment, and the avoiding gap is located on the side of the fitting segment facing the pressing strip.

[0016] In a possible implementation, the cover body reinforcing structure provided in the present application has a connecting segment perpendicular to the fitting segment.

[0017] In a possible implementation, the cover body reinforcing structure provided in the present application has a flat end surface of the pressing strip, and the avoiding gap is arranged on the end surface of the pressing strip.

[0018] The avoiding gap has a semicircular shape.

[0019] In a possible implementation, the cover body reinforcing structure provided in the present application has a reinforcing segment arranged on the side edge of the pressing strip.

[0020] In a second aspect, the present application provides a battery pack including an upper cover and the cover body reinforcing structure as above, and the cover body reinforcing structure is arranged on the upper cover.

[0021] In a third aspect, the present application provides a vehicle including a vehicle body and the battery pack as above, and the battery pack is arranged in the vehicle body.

[0022] The cover body reinforcing structure, the battery pack and the vehicle are provided. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the present application.

[0024] Figure 1A structure schematic view of the cover reinforcing structure provided by the embodiment of the present application and the upper cover connection;

[0025] Figure 2 For Figure 1 An enlarged view of the cover reinforcing structure in the first embodiment indicated by A in FIG.

[0026] Figure 3 For Figure 2 An exploded view of part of the structure in FIG.

[0027] Figure 4 For Figure 1 An enlarged view of the cover reinforcing structure in the second embodiment indicated by A in FIG.

[0028] Figure 5 For Figure 4 An exploded view of part of the structure in FIG.

[0029] Figure 6 For Figure 1 An enlarged view of the cover reinforcing structure in the third embodiment indicated by A in FIG.

[0030] Figure 7 For Figure 1 A structure schematic view of another angle of FIG.

[0031] Figure 8 A structure schematic view of the frame provided by the embodiment of the present application.

[0032] Explanation of reference signs:

[0033] 100, cover reinforcing structure;

[0034] 110, pressing strip;

[0035] 111, first mounting hole;

[0036] 112, avoiding gap;

[0037] 113, second mounting hole;

[0038] 120, butt joint part;

[0039] 121, connecting section;

[0040] 122, matching section;

[0041] 130, reinforcing section;

[0042] 200, fastener;

[0043] 300, upper cover;

[0044] 310, connecting part;

[0045] 320, fixing hole;

[0046] 400. frame.

[0047] The specific embodiments of the application will be described in detail in the following with reference to the attached drawings. The drawings and the description are not intended to limit the scope of the application in any way, but rather to illustrate the concept of the application to a person skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, unless the context clearly shows otherwise. The following exemplary embodiments described herein are not meant to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0049] The terms "first", "second", "third", and "fourth" and the like, if any, in the description and in the claims of the present application and the above-described drawings, are used to distinguish between similar objects, and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the terms so construed can be interchanged, under appropriate circumstances, to refer to a similar object unnumbered. The embodiments of the present application described herein can be implemented in other orders than those illustrated or described herein, as will be appreciated by those skilled in the art. Furthermore, the terms "comprise" and "have", and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a list of steps or units not necessarily limited to those explicitly listed, but can include other steps or units not expressly listed or inherent to such processes, methods, products, or apparatus.

[0050] As mentioned in the background, in the prior art, in order to enhance the structural strength of the edge of the upper cover, a pressing strip is usually arranged at the edge position of the upper cover to improve the stability of the connection between the upper cover and the frame. At the same time, the pressing strip can also prevent the edge of the upper cover from being locally raised, so that the fit between the edge of the upper cover and the side plate of the frame is higher, and the sealing performance of the sealing gasket is improved.

[0051] In the prior art, the thickness of the pressing strip is large, resulting in high cost of pressing. A plurality of pressing strips are arranged at the edge of the upper cover, and the end portions of the adjacent two pressing strips are close to each other to increase the contact area between the pressing strip and the edge of the upper cover. The thickness of the pressing strip is generally 1.5 mm or more, so that the end portion of the pressing strip does not occur. However, after thinning the pressing strip (for example, the thickness of the pressing strip is thinned to 1.2 mm or less), the strength and rigidity of the pressing strip are reduced, and the end portion of the pressing strip is prone to be raised, resulting in poor pressing effect on the edge of the upper cover.

[0052] In view of the above problems existing in the prior art, the utility model provides a cover body reinforcing structure, a battery pack and a vehicle. The cover body reinforcing structure comprises a plurality of pressing strips. At least one first mounting hole is arranged on the pressing strip. The end of the pressing strip is provided with an avoiding gap, and the avoiding gaps on the two adjacent pressing strips jointly enclose a second mounting hole, and the first mounting hole and the second mounting hole are used for pressing the pressing strip on the cover body through the fastener. The end of the pressing strip is provided with the avoiding gap, the avoiding gaps on the two adjacent pressing strips enclose the second mounting hole, when the fastener is installed through the second mounting hole, the ends of the two adjacent pressing strips can be pressed at the same time, the end of the pressing strip is prevented from being raised, the pressing strip is effectively pressed on the connecting part, so that the pressing strip can be thinned, the overall weight of the battery pack is reduced, and the manufacturing cost is reduced.

[0053] The following will introduce the exemplary application scenarios of the utility model.

[0054] The cover body reinforcing structure provided by the utility model can be applied to the battery pack of a new energy automobile, such as the battery pack of a pure electric drive car, the battery pack of a plug-in hybrid car and the like. Specifically, the cover body reinforcing structure provided by the utility model is provided with the avoiding gap at the end of the pressing strip, the avoiding gaps on the two adjacent pressing strips enclose the second mounting hole, when the fastener is installed through the second mounting hole, the ends of the two adjacent pressing strips can be pressed at the same time, so that the end of the pressing strip is prevented from being raised.

[0055] The following will introduce the exemplary application scenarios of the utility model.

[0056] Referring to Figures 1 to 7 The cover body reinforcing structure 100 provided by the utility model comprises a plurality of pressing strips 110.

[0057] At least one first mounting hole 111 is arranged on the pressing strip 110.

[0058] The end of the pressing strip 110 is provided with an avoiding gap 112, the avoiding gaps 112 on the two adjacent pressing strips 110 jointly enclose a second mounting hole 113, and the first mounting hole 111 and the second mounting hole 113 are used for pressing the pressing strip 110 on the cover body through the fastener 200.

[0059] It can be understood that the cover reinforcing structure 100 provided by the application can be applied to a battery pack, the battery pack comprising an upper cover 300 and a frame 400, the upper cover 300 being arranged on the frame 400 to encapsulate and protect a group of battery cells. The edge of the upper cover 300 is surrounded by a connecting portion 310, which is connected together with the frame 400 by means of fasteners 200 such as bolts, pull rivet nuts, etc. The plurality of pressing strips 110 in the cover reinforcing structure 100 provided by the application can be arranged on the connecting portion 310 at intervals, so as to press the connecting portion 310 and improve the stability of the connection between the connecting portion 310 and the frame 400.

[0060] Referring to Figure 3 and Figure 5 It can be understood that the cover reinforcing structure 100 provided by the application can be applied to a battery pack, the battery pack comprising an upper cover 300 and a frame 400, the upper cover 300 being arranged on the frame 400 to encapsulate and protect a group of battery cells. The edge of the upper cover 300 is surrounded by a connecting portion 310, which is connected together with the frame 400 by means of fasteners 200 such as bolts, pull rivet nuts, etc. The plurality of pressing strips 110 in the cover reinforcing structure 100 provided by the application can be arranged on the connecting portion 310 at intervals, so as to press the connecting portion 310 and improve the stability of the connection between the connecting portion 310 and the frame 400.

[0061] Furthermore, the end portions of the two adjacent pressing strips 110 are close to each other, and the relief notches 112 arranged on the end portions of the two pressing strips 110 are arranged to jointly surround a second mounting hole 113, and a plurality of second mounting holes 113 are arranged in one-to-one correspondence with some other fixing holes 320. In this way, the fasteners 200 such as bolts, pull rivet nuts, etc. can sequentially pass through the second mounting holes 113 and the fixing holes 320 to simultaneously press the end portions of the two adjacent pressing strips 110, so as to avoid the end portions of the pressing strips 110 from being raised. Thus, in the case of thinning the pressing strips 110, the end portions of the pressing strips 110 will not be raised, so that the pressing strips 110 can effectively press the connecting portion 310, so as to reduce the overall weight of the battery pack and reduce the manufacturing cost.

[0062] In a preferred embodiment, the thickness of the pressing strips 110 can be reduced from 1.5 mm to 1.2 mm.

[0063] In the preferred embodiment, the pressing strips 110 extend along the extension direction of the connecting portion 310, so as to increase the contact area between the pressing strips 110 and the connecting portion 310, and improve the pressing performance of the pressing strips 110 on the connecting portion 310.

[0064] For example, referring to Figure 1As shown, the shape of the pressing strip 110 can include a long strip shape, a bent shape, etc. The long strip-shaped pressing strip 110 is arranged at a portion of the connecting portion 310 extending in a straight line, and the bent-shaped pressing strip 110 is arranged at a portion of the connecting portion 310 where the bending direction is changed, so as to increase the contact area of the pressing strip 110 and the connecting portion 310, and the corresponding shape of the pressing strip 110 can also be selected according to the shape of the connecting portion 310, facilitating installation.

[0065] It can be understood that when the shape of the upper cover 300 is circular or elliptical, that is, the shape of the connecting portion 310 is also circular or elliptical, the shape of the pressing strip 110 can be a circular arc shape to match the shape of the connecting portion 310. The shape of the pressing strip 110 in the present application is not limited to the long strip shape, the bent shape, or the circular arc shape described above, as long as the shape of the pressing strip 110 matches the shape of the connecting portion 310, and the present application does not make too many limitations thereon.

[0066] The present application sets the avoiding gap 112 at the end of the pressing strip 110, and the avoiding gaps 112 on the adjacent two pressing strips 110 are arranged to form the second mounting hole 113. When the fastener 200 is mounted through the second mounting hole 113, the ends of the adjacent two pressing strips 110 can be simultaneously pressed tightly to avoid the ends of the pressing strips 110 from being raised, so that the pressing strips 110 can be effectively pressed against the connecting portion 310, thereby allowing the pressing strips 110 to be thinned to reduce the overall weight of the battery pack and reduce the manufacturing cost.

[0067] In some embodiments, referring to Figures 2 to 5 As shown, the two ends of the pressing strip 110 are respectively provided with the butt joint portion 120, and the avoiding gap 112 is arranged on the butt joint portion 120.

[0068] The butt joint portions 120 of the adjacent two pressing strips 110 are matched to allow the two avoiding gaps 112 to be opposite to each other.

[0069] In the above embodiments, by arranging the butt joint portion 120 at the end of the pressing strip 110, when the pressing strip 110 is mounted on the connecting portion 310 of the upper cover 300, the butt joint portions 120 on the adjacent two pressing strips 110 cooperate with each other to quickly and accurately form the second mounting hole 113 by the avoiding gaps 112 arranged on the two butt joint portions 120, thereby improving the installation efficiency of the pressing strip 110.

[0070] For example, the butt joint portion 120 and the pressing strip 110 can be integrally formed by stamping to improve the connection strength of the butt joint portion 120 and the pressing strip 110.

[0071] In some specific embodiments, referring to Figure 2 and Figure 3 As shown, the width of the butt joint portion 120 is less than the width of the pressing strip 110.

[0072] The abutting portions 120 of two adjacent pressing strips 110 are misaligned, and the avoidance gap 112 is arranged on one side of the abutting portion 120, and the avoidance gap 112 faces the other abutting portion 120.

[0073] In the above embodiment, the width of the abutting portion 120 is less than the width of the pressing strip 110, so that the abutting portions 120 on two adjacent pressing strips 110 can be misaligned to form the second mounting hole 113 with the two avoidance gaps 112.

[0074] The misaligned abutting of the two abutting portions 120 can quickly align the two avoidance gaps 112 to form the second mounting hole 113, and correspond to the fixing hole 320 on the connecting portion 310.

[0075] In some preferred embodiments, referring to Figure 2 and Figure 3 The width of the abutting portion 120 is half of the width of the pressing strip 110, and the abutting portion 120 is located at the edge of the end of the pressing strip 110.

[0076] In the above embodiment, when the two abutting portions 120 are misaligned, the sum of the widths of the two abutting portions 120 is equal to the width of the pressing strip 110, and when the fastener 200 is installed through the second mounting hole 113 formed by the two avoidance gaps 112, the stability of the connection between the components is improved.

[0077] For example, when the width of the abutting portion 120 is too narrow, the connection strength between the abutting portion 120 and the pressing strip 110 is low, and after the fastener 200 is compressed, the abutting portion 120 is easy to break. When the width of the abutting portion 120 is too wide, after the misaligned abutting of the two abutting portions 120, the total width is greater than the width of the pressing strip 110, and the edge of one of the abutting portions 120 will protrude from the connecting portion 310 of the upper cover 300, which will be easily damaged.

[0078] In some specific embodiments, referring to Figure 4 and Figure 5 The abutting portion 120 includes a connecting segment 121 and a matching segment 122.

[0079] The connecting segment 121 connects the matching segment 122 and the pressing strip 110 respectively, and has an included angle between the connecting segment 121 and the matching segment 122. The avoidance gap 112 is arranged on the matching segment 122, and the avoidance gap 112 is located on the side of the matching segment 122 facing the pressing strip 110.

[0080] In the above embodiment, the connecting section 121 and the matching section 122 have an included angle, so that the abutting portion 120 has a hook shape, and the abutting portions 120 on two adjacent pressing strips 110 can match with each other, so that the two avoiding notches 112 on the matching sections 122 quickly and accurately enclose the second mounting hole 113, and correspond to the fixing hole 320 on the connecting portion 310.

[0081] In some preferred embodiments, referring to Figure 4 and Figure 5 , the connecting section 121 and the matching section 122 are perpendicular.

[0082] In the above embodiment, the connecting section 121 and the matching section 122 are perpendicular, which can improve the stability of the structure. Referring to Figure 4 , after the two abutting portions 120 match with each other, the abutting portions 120 can play a role of transverse locking, and when the fastener 200 is installed, the movement of the pressing strip 110 in the +X and -X directions can be limited, so as to improve the installation efficiency.

[0083] Of course, the structure of the abutting portion 120 is not limited to the above two embodiments, and can also be other similar structures, such as a slot shape, a buckle abutting shape, etc., as long as the two adjacent abutting portions 120 can match with each other, so that the two avoiding notches 112 are aligned and form the second mounting hole 113, and the present application does not make too many limitations.

[0084] In some embodiments, referring to Figure 6 , the end faces of the two adjacent pressing strips 110 are parallel to each other, and the avoiding notch 112 is arranged on the end face of the pressing strip 110.

[0085] The shape of the avoiding notch 112 is semicircular.

[0086] In the above embodiment, the end faces of the two adjacent pressing strips 110 are close to each other, so that the two avoiding notches 112 enclose the second mounting hole 113. The shape of the avoiding notch 112 is semicircular, so that the enclosed second mounting hole 113 is a circular hole, and corresponds to the fixing hole 320 on the connecting portion 310.

[0087] Specifically, during installation, the end face of the pressing strip 110 is arranged perpendicular to the extension direction of the connecting portion 310, so that when the fastener 200 such as a bolt, a pull rivet nut, etc. is installed, the two adjacent pressing strips 110 can support each other through the end faces, so as to avoid the phenomenon that the pressing strip 110 rotates and leads to installation misalignment. The following will be exemplarily described by taking the pressing strip 110 with the abutting portion 120 as an example.

[0088] Referring to Figure 2 and Figure 4As shown, when the pressing strip 110 with the abutting portion 120 is used, a fastener 200 such as a bolt, a pull rivet nut, etc. is installed at the second mounting hole 113, and the fastener 200 is rotated in the direction indicated by the arrow R in the figure, the pressing strip 110 that is not fixed will follow the rotation of the fastener 200, and thus installation misalignment will occur.

[0089] Then, referring to Figure 6 As shown, for the pressing strip 110 in the present embodiment, the avoidance gap 112 is arranged at the end face of the pressing strip 110, and the end face of the pressing strip 110 is arranged perpendicular to the extension direction of the connecting portion 310, when the fastener 200 is rotated, the end faces of the two adjacent pressing strips 110 can support each other, and the phenomenon of the pressing strip 110 following the rotation can be avoided.

[0090] In some embodiments, referring to Figure 1 and Figure 7 As shown, the side edge of the pressing strip 110 is provided with a reinforcing section 130.

[0091] In the above embodiments, the reinforcing section 130 is used to enhance the structural strength of the pressing strip 110, and prevent the pressing strip 110 from being deformed and warped so as to be unable to press the connecting portion 310.

[0092] Specifically, referring to Figure 2 and Figure 4 As shown, for the pressing strip 110 with the abutting portion 120, when the fastener 200 is installed, the pressing range of the fastener 200 is limited, and the fastener 200 only presses the abutting portion 120, and cannot cover the part of the pressing strip 110 indicated by B in the figure, and thus the part of the pressing strip 110 at this position may be warped, etc.

[0093] Therefore, the reinforcing section 130 arranged at the side edge of the pressing strip 110 can further enhance the structural strength of the pressing strip 110, and avoid the part of the pressing strip 110 from being warped, and thus the corresponding part of the connecting portion 310 cannot be pressed.

[0094] The reinforcing section 130 can be continuously arranged along the extension direction of the pressing strip 110, or can be arranged as multiple sections or one section along the extension direction of the pressing strip 110, so as to enhance the structural strength of the pressing strip 110.

[0095] For example, the reinforcing section 130 can be a reinforcing rib, and the reinforcing section 130 can be integrally formed with the pressing strip 110 in the same material, so as to enhance the connection strength of the two.

[0096] In some embodiments, referring to Figures 1 to 7 As shown, the width of the pressing strip 110 is equal to the width of the connecting portion 310.

[0097] In the above embodiments, this arrangement can increase the contact area between the pressure strip 110 and the connecting portion 310, thereby improving the pressing effect of the pressure strip 110 on the connecting portion 310.

[0098] Reference Figure 1 and Figure 8 As shown, the present application provides a battery pack including a top cover 300 and a cover reinforcement structure 100 as described above, the cover reinforcement structure 100 being disposed on the top cover 300.

[0099] In this embodiment, since the battery pack adopts the cover reinforcement structure 100 in the above embodiment, it also has the advantages and benefits brought by the cover reinforcement structure 100. That is, by providing a clearance notch 112 at the end of the pressure strip 110, the clearance notches 112 on two adjacent pressure strips 110 surround the second mounting hole 113. When the fastener 200 is installed through the second mounting hole 113, the ends of two adjacent pressure strips 110 can be pressed at the same time to prevent the ends of the pressure strips 110 from lifting, so that the pressure strips 110 can effectively press the connecting part 310, thereby thinning the pressure strips 110 to reduce the overall weight of the battery pack and reduce the manufacturing cost.

[0100] Among them, reference Figure 8 As shown, the battery pack may also include a frame 400, and a connecting part 310 provided on the edge of the top cover 300 abuts against the frame 400. Fasteners 200 are sequentially inserted into the first mounting hole 111 (or the second mounting hole 113) and the fixing hole 320 on the top cover 300 to fix the pressure strip 110, the connecting part 310 and the frame 400 together.

[0101] This application provides a vehicle including a vehicle body and the battery pack described above, the battery pack being disposed within the vehicle body.

[0102] In the above structural configuration, since the vehicle uses the battery pack in the above embodiment, it also has the advantages and benefits brought by the battery pack, which will not be elaborated further here.

[0103] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0104] It is to be understood that the application is not limited to the precise construction already described above and shown in the drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application should only be limited by the claims appended hereto.

Claims

1. A cover reinforcement structure characterized by, The plurality of pressing strips (110) are arranged on the cover body (100); At least one first mounting hole (111) is arranged on the pressing strip (110); An avoiding gap (112) is arranged at the end of the pressing strip (110), and the avoiding gaps (112) on two adjacent pressing strips (110) are arranged to jointly form a second mounting hole (113), and the first mounting hole (111) and the second mounting hole (113) are used to press the pressing strip (110) on the cover body by a fastener (200).

2. The cover reinforcement structure of claim 1, wherein Two butt joints (120) are arranged at the two ends of the pressing strip (110), and the avoiding gap (112) is arranged on the butt joint (120); The butt joints (120) of two adjacent pressing strips (110) are matched to make the two avoiding gaps (112) opposite to each other.

3. The cover reinforcement structure of claim 2, wherein The width of the butt joint (120) is less than the width of the pressing strip (110). The butt joints (120) of two adjacent pressing strips (110) are misaligned, the avoiding gap (112) is arranged on one side of the butt joint (120), and the avoiding gap (112) faces the other butt joint (120).

4. The cover reinforcement structure of claim 3, wherein The width of the butt joint (120) is half of the width of the pressing strip (110), and the butt joint (120) is located at the edge of the end of the pressing strip (110).

5. The cover reinforcement structure of claim 2, wherein The butt joint (120) comprises a connecting segment (121) and a matching segment (122). The connecting segment (121) connects the matching segment (122) and the pressing strip (110) respectively, and the connecting segment (121) and the matching segment (122) have an included angle, the avoiding gap (112) is arranged on the matching segment (122), and the avoiding gap (112) is located on the side of the matching segment (122) facing the pressing strip (110).

6. The cover reinforcement structure of claim 5, wherein The connecting segment (121) is perpendicular to the matching segment (122).

7. The cover reinforcement structure of claim 1, wherein The end faces of two adjacent pressing strips (110) are parallel to each other, and the avoiding gap (112) is arranged on the end face of the pressing strip (110); The avoiding gap (112) is semicircular in shape.

8. The cover-stiffening structure according to any one of claims 1 to 7, characterized in that The side edge of the pressing strip (110) is provided with a reinforcing segment (130).

9. A battery pack, characterized by, The cover body reinforcing structure (100) as claimed in any one of claims 1 to 8 is arranged on the upper cover (300).

10. A vehicle characterized by comprising: The battery pack as claimed in claim 9 is arranged in the vehicle body.

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