Buffer composite board, battery pack and electric equipment
By designing a buffer composite panel, the buffer gap in the confined space is used to deform, which solves the problem of resistance to deformation of the battery-enclosed protective panel, improves the protection effect and service life, and reduces maintenance costs.
Patent Information
- Application Number
- CN202420012770.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The guard plate at the bottom of the battery pack has no room for the buffer plate to deform between the substrate and the buffer plate, which causes the deformation process of the guard plate to be hindered after collision, affecting the protection effect, and easily lead to high-voltage short circuits and safety accidents.
A buffer composite plate is designed, including a first substrate and a second substrate laminated to form a closed space, and a plurality of buffer members are spaced or intersected in the space to provide deformation space to avoid being hindered by the substrate and the buffer plate during deformation. and reduce material usage to reduce costs.
It effectively improves the protection effect of the battery pack, prevents the buffer from breaking through the substrate during deformation, reduces the difficulty and cost of maintenance, and improves the service life due to the gap resilience.
Smart Images
Figure CN222146423U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and in particular to a buffer composite plate, a battery pack and electrical equipment. Background Art
[0002] The power battery pack of new energy vehicles is generally arranged under the chassis of the vehicle. During actual driving, the battery pack at the bottom of the car is very likely to be damaged by the impact or extrusion of stones or sharp metal objects on the road, and even cause high-voltage short circuits and safety accidents. Therefore, a protective plate is usually added to the bottom of the battery pack. The protective plate is usually press-connected or bonded by a multi-layer substrate and a buffer plate. However, the press-connection and bonding method may leave no space between the substrate and the buffer plate for the buffer plate to deform, so that after the protective plate is hit, the deformation process of the buffer plate is hindered by the substrate, affecting the protective effect of the protective plate. Utility Model Content
[0003] The utility model aims to provide a buffer composite plate, a battery pack and an electrical device, which solve the problem that there is no space between a base plate and a buffer plate for deformation of the buffer plate.
[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:
[0005] In a first aspect, the utility model provides a buffer composite plate, comprising: a first substrate having a first groove; a second substrate having a second groove, the first substrate and the second substrate being stacked and connected, the first groove and the second groove jointly enclosing a closed space; a plurality of buffer members being accommodated in the closed space, the plurality of buffer members being arranged at intervals or crosswise.
[0006] In one embodiment, the buffer member includes a first buffer portion and a second buffer portion, the first buffer portion is connected to the first substrate, the first buffer portion and the second substrate are spaced apart from each other, the second buffer portion is connected to the second substrate, and the second buffer portion and the first substrate are spaced apart from each other.
[0007] In one embodiment, a plurality of first buffer portions are spaced apart, and a maximum spacing distance between two adjacent first buffer portions is less than or equal to a maximum width of the first buffer portion, and / or a plurality of second buffer portions are spaced apart, and a maximum spacing distance between two adjacent second buffer portions is less than or equal to a maximum width of the second buffer portion.
[0008] In one embodiment, a plurality of the first buffer portions are cross-arranged to form a mesh structure, and / or a plurality of the second buffer portions are cross-arranged to form a mesh structure.
[0009] In one embodiment, the orthographic projections of the plurality of second buffer portions on the first substrate overlap with the plurality of first buffer portions.
[0010] In one embodiment, the orthographic projections of a plurality of the second buffer portions on the first substrate and a plurality of the first buffer portions are alternately arranged, the surface of the first buffer portion facing away from the first substrate is in contact with the surface of the second buffer portion facing away from the second substrate, or the first buffer portion is located between two adjacent second buffer portions.
[0011] In one embodiment, the second buffer portion and the first buffer portion are an integrated structure.
[0012] In one embodiment, the inner wall of the first groove has a plurality of first protrusions, the plurality of first protrusions are arranged at intervals, the plurality of first protrusions are located between two adjacent first buffer portions, or the first buffer portion has a plurality of through holes, the number of the through holes is greater than or equal to the number of the first protrusions, and the first protrusions pass through the through holes.
[0013] In one embodiment, the inner wall of the second groove has a plurality of second protrusions, the second protrusions correspond to the first protrusions one by one, and the second protrusions are detachably connected to the first protrusions.
[0014] In a second aspect, the utility model further provides a battery pack, comprising a battery tray and the buffer composite plate described in any one embodiment of the first aspect, wherein the bottom of the battery tray is connected to the first substrate of the buffer composite plate.
[0015] In a third aspect, the utility model further provides an electrical device, comprising an electrical device and the battery pack described in the second aspect, wherein the electrical device and the battery pack are electrically connected.
[0016] The buffer composite board provided by the utility model comprises a first substrate, a second substrate and a plurality of buffer members, the first substrate has a first groove, the second substrate has a second groove, the first substrate and the second substrate are stacked and connected, the first groove and the second groove jointly enclose a closed space, the plurality of buffer members are accommodated in the closed space, the plurality of buffer members are arranged at intervals or crosswise, so that there are gaps between the plurality of buffer members in the closed space, which is conducive to reducing the material of the required buffer members, thereby reducing the cost of the buffer composite board; and after the buffer composite board is impacted, the buffer members located in the closed space have space for deformation, and the deformation process of the buffer members can be between two adjacent buffer members The buffer component is deformed in the gap, thereby avoiding being hindered by the first substrate and the second substrate during the deformation process, thereby affecting the deformation process of the buffer component, which is beneficial to ensuring the protective effect of the buffer composite plate, and avoiding the buffer component breaking through the first substrate and the second substrate during the deformation process, thereby causing the first substrate and the second substrate to crack or break, so that the buffer component, the first substrate and the second substrate can all be repaired through a repair process, which is beneficial to reducing the difficulty and cost of the repair process of the buffer composite plate; at the same time, due to the presence of a gap between two adjacent buffer components, the buffer component can rebound to a certain extent after the impact force on the buffer component is released, which is beneficial to improving the service life of the buffer composite plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 is a schematic cross-sectional view of a buffer composite plate and a battery tray according to an embodiment;
[0019] Figure 2 is a cross-sectional view of a plurality of buffer members arranged at intervals in one embodiment;
[0020] Figure 3 The present invention is a cross-sectional view of a plurality of buffer components cross-arranged in one embodiment.
[0021] Description of reference numerals:
[0022] 10-first substrate, 11-first groove, 12-first convex part;
[0023] 20-second substrate, 21-second groove, 22-second convex portion;
[0024] 30-buffer, 31-first buffer portion, 32-second buffer portion, 33-through hole;
[0025] 40-mounting hole, 41-fastener, 50-battery tray. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.
[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0031] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0032] The utility model embodiment provides a buffer composite board, see Figure 1 , Figure 2 and Figure 3 The buffer composite plate includes a first substrate 10, a second substrate 20 and a plurality of buffers 30. The first substrate 10 has a first groove 11, the second substrate 20 has a second groove 21, the first substrate 10 and the second substrate 20 are stacked and connected, the first groove 11 and the second groove 21 jointly enclose a closed space, and the plurality of buffers 30 are accommodated in the closed space, so that after the buffer composite plate is impacted, the buffers 30 located in the closed space can absorb the impact force, so that the buffer composite plate can absorb and block the external impact, and achieve the protective effect of the buffer composite plate. In addition, the first groove 11 and the second groove 21 jointly enclose the closed space, which can limit the movement of the plurality of buffers 30 in the space, so that the plurality of buffers 30 are always sandwiched between the first substrate 10 and the second substrate 20, ensuring the structural stability of the buffer composite plate, and at the same time avoiding the buffers 30 from shifting or detaching between the first substrate 10 and the second substrate 20 after the buffer composite plate is impacted, thereby affecting the protective effect of the buffer composite plate.
[0033] Specifically, after the buffer composite plate is impacted, the buffer component 30 can be deformed. During the deformation of the buffer component 30, the buffer component 30 converts the impact force it receives into the energy required for the deformation of the buffer component 30, so that less impact force or even no impact force can penetrate the buffer composite plate, so that the buffer composite plate can absorb and block external impacts, thereby achieving the protective effect of the buffer composite plate.
[0034] The plurality of buffer members 30 are arranged at intervals or crosswise, so that there are gaps between the plurality of buffer members 30 in the confined space, which is beneficial to reducing the material of the buffer members 30 required, thereby reducing the cost of the buffer composite board; and after the buffer composite board is impacted, the buffer members 30 located in the confined space have space to deform, and the buffer members 30 can deform into the gap between two adjacent buffer members 30 during the deformation process. Compared with the buffer members 30 filled in the confined space, the gaps between the plurality of buffer members 30 avoid the buffer members 30 being hindered by the first substrate 10 and the second substrate 20 during the deformation process, thereby The deformation process of the buffer component 30 is affected, which is beneficial to ensuring the protective effect of the buffer composite board, and avoids the buffer component 30 breaking through the first substrate 10 and the second substrate 20 during the deformation process, which causes the first substrate 10 and the second substrate 20 to crack or break, so that the buffer component 30, the first substrate 10 and the second substrate 20 can all be repaired through a repair process, which is beneficial to reducing the difficulty and cost of the repair process of the buffer composite board; at the same time, due to the gap between two adjacent buffer components 30, the buffer component 30 can rebound to a certain extent after the impact force on the buffer component 30 is released, which is beneficial to improving the service life of the buffer composite board.
[0035] Optionally, the material of the buffer 30 is a shape memory material. When an impact occurs and causes the buffer 30 to be deformed, the buffer 30 can be completely repaired by heating it after the impact. Compared with using metal materials as the buffer 30, using shape memory materials as the buffer 30 greatly reduces the maintenance process and material costs of the buffer 30; and the buffer 30 has good energy absorption and energy consumption performance, which is beneficial to improving the impact resistance and vibration resistance of the buffer composite plate. In addition, the buffer 30 also has superelastic properties. Compared with using metal materials as the buffer 30, the metal material will undergo plastic deformation after deformation, and it is difficult to return to its original shape after the external force is unloaded. When the shape memory material is used as the buffer 30, after repeated loading and unloading, the buffer 30 does not produce obvious material damage, so that the buffer composite plate has good fatigue resistance and service life, which is beneficial to reduce the cost of the buffer composite plate.
[0036] The buffer composite plate provided by the utility model includes a first substrate 10, a second substrate 20 and a plurality of buffer components 30. The first substrate 10 has a first groove 11, the second substrate 20 has a second groove 21, the first substrate 10 and the second substrate 20 are stacked and connected, the first groove 11 and the second groove 21 jointly enclose a closed space, and the plurality of buffer components 30 are accommodated in the closed space, so that after the buffer composite plate is impacted, the buffer components 30 located in the closed space can absorb the impact force, so that the buffer composite plate can absorb and block external impact, thereby achieving the protective effect of the buffer composite plate.
[0037] By arranging the plurality of buffer members 30 at intervals or crosswise, there are gaps between the plurality of buffer members 30 in the confined space, which is beneficial to reducing the material of the buffer members 30 required, thereby reducing the cost of the buffer composite board; and after the buffer composite board is impacted, the buffer members 30 in the confined space have space to deform, and the buffer members 30 can deform into the gap between two adjacent buffer members 30 during the deformation process, thereby avoiding the buffer members 30 being hindered by the first substrate 10 and the second substrate 20 during the deformation process, thereby affecting the deformation process of the buffer members 30. This is beneficial to ensuring the protective effect of the buffer composite board, and avoids the buffer component 30 from breaking through the first substrate 10 and the second substrate 20 during deformation, which causes the first substrate 10 and the second substrate 20 to crack or break, so that the buffer component 30, the first substrate 10 and the second substrate 20 can all be repaired through a repair process, which is beneficial to reducing the difficulty and cost of the repair process of the buffer composite board; at the same time, due to the presence of a gap between two adjacent buffer components 30, the buffer component 30 can rebound to a certain extent after the impact force on the buffer component 30 is released, which is beneficial to improving the service life of the buffer composite board.
[0038] In one implementation, see Figure 1 , Figure 2 and Figure 3 The buffer 30 includes a first buffer portion 31 and a second buffer portion 32, which may be connected or not connected. The first buffer portion 31 is connected to the first substrate 10, and the first buffer portion 31 and the second substrate 20 have a spacing distance, and the second buffer portion 32 is connected to the second substrate 20, and the second buffer portion 32 and the first substrate 10 have a spacing distance; so that the arrangement of the plurality of first buffer portions 31 and the arrangement of the plurality of second buffer portions 32 can be the same or different, and can be designed according to the impact strength that the first substrate 10 and the second substrate 20 need to resist.
[0039] The shapes of the first buffer parts 31 and the second buffer parts 32 may be the same or different. The shapes of the first buffer parts 31 and the second buffer parts 32 include but are not limited to rectangle, triangle, arc, etc.
[0040] Optionally, when the first substrate 10 needs to resist a stronger impact and the second substrate 20 needs to resist a weaker impact, multiple first buffers 31 can be cross-set and multiple second buffers 32 can be spaced apart, so that the first buffers 31 cover a larger area on the first substrate 10, so that the impact on the first substrate 10 can be transmitted to more first buffers 31, so that the first substrate 10 can resist a stronger impact, and the second buffers 32 cover a smaller area on the second substrate 20, so that while ensuring the protective effect of the second substrate 20, it is beneficial to reduce the overall mass of the buffer composite board and reduce the cost of the buffer composite board. In addition, the gaps between the second buffers 32 can also provide space for the deformation of the first buffers 31, which is beneficial to ensuring the protective effect of the buffer composite board.
[0041] In one implementation, see Figure 1 and Figure 2 , multiple first buffer portions 31 are arranged at intervals, and the maximum spacing distance between two adjacent first buffer portions 31 is less than or equal to the maximum width of the first buffer portion 31, so that there can be more gaps between two adjacent first buffer portions 31, thereby ensuring that the first buffer portion 31 has sufficient deformation space and also provides space for the deformation of the second buffer portion 32; and ensuring that the first buffer portion 31 covering the first substrate 10 has a certain area, thereby ensuring the protective effect of the first substrate 10.
[0042] And / or, multiple second buffer portions 32 are arranged at intervals, and the maximum spacing distance between two adjacent second buffer portions 32 is less than or equal to the maximum width of the second buffer portion 32. Similarly, there can be more gaps between two adjacent second buffer portions 32, so as to provide space for the deformation of the first buffer portion 31 and the second buffer portion 32 and ensure the protective effect of the second substrate 20.
[0043] Optionally, the arrangement of the multiple first buffer portions 31 is the same as the arrangement of the multiple second buffer portions 32, and the shapes of the first buffer portions 31 and the second buffer portions 32 are the same, and the orthographic projections of the multiple second buffer portions 32 on the first substrate 10 coincide with the multiple first buffer portions 31; so that there can be more gaps between two adjacent first buffer portions 31 and two adjacent second buffer portions 32, providing more space for the deformation of the first buffer portions 31 and the second buffer portions 32; at the same time, when either the first substrate 10 or the second substrate 20 is impacted, the impact force can be completely transmitted from the first buffer portion 31 to the second buffer portion 32, or the second buffer portion 32 is transmitted to the first buffer portion 31, and the first buffer portion 31 and the second buffer portion 32 are both deformed to absorb the impact force, so that the buffer composite plate absorbs more impact force, which is beneficial to improving the protective effect of the buffer composite plate.
[0044] Optionally, the orthographic projections of the plurality of second buffer portions 32 on the first substrate 10 and the plurality of first buffer portions 31 are alternately arranged, so that the first buffer portions 31 and the second buffer portions 32 are evenly distributed in the confined space, and on the plane parallel to the first substrate 10, there are more positions covered by the first buffer portions 31 and the second buffer portions 32, so that the protection range of the buffer composite plate is wider and more uniform. The surface of the first buffer portion 31 facing away from the first substrate 10 is in contact with the surface of the second buffer portion 32 facing away from the second substrate 20, that is, on the plane parallel to the first substrate 10, the impact force received by the buffer composite plate can be transmitted to one of the first buffer portion 31 and the second buffer portion 32, which is conducive to ensuring the protection range of the buffer composite plate, and at the same time, it is conducive to having more gaps between two adjacent first buffer portions 31 and two adjacent second buffer portions 32, providing more space for the deformation of the first buffer portion 31 and the second buffer portion 32. Alternatively, the first buffer portion 31 is located between two adjacent second buffer portions 32, so that more positions are covered by the first buffer portion 31 and the second buffer portion 32 on a plane parallel to the first substrate 10, thereby making the protection range of the buffer composite board wider and more uniform.
[0045] Optionally, the second buffer portion 32 and the first buffer portion 31 are an integrated structure, so that when one of the first substrate 10 and the second substrate 20 is impacted, the impact force can be transmitted from the first buffer portion 31 to the second buffer portion 32, or the second buffer portion 32 is transmitted to the first buffer portion 31, and the first buffer portion 31 and the second buffer portion 32 are deformed together to absorb the impact force, so that the buffer composite plate absorbs more impact force, which is beneficial to improving the protective effect of the buffer composite plate.
[0046] In one implementation, see Figure 1 and Figure 3 The multiple first buffer parts 31 are cross-arranged to form a mesh structure, so that the first buffer parts 31 cover a larger area on the first substrate 10, and the impact on the first substrate 10 can be transmitted to more first buffer parts 31, so that the first substrate 10 can resist stronger impact. At the same time, there are gaps between the multiple first buffer parts 31, so that the first buffer part 31 can be deformed into the gap between two adjacent buffer parts 30, which is beneficial to ensure the protective effect of the buffer composite plate.
[0047] And / or, multiple second buffer portions 32 are cross-arranged to form a mesh structure. Similarly, the second buffer portions 32 cover a larger area on the second substrate 20, and the second substrate 20 can resist a stronger impact. At the same time, there are gaps between the multiple second buffer portions 32 to ensure the deformation space of the second buffer portions 32.
[0048] Optionally, the arrangement of the multiple first buffer portions 31 is the same as the arrangement of the multiple second buffer portions 32, and the shapes of the first buffer portions 31 and the second buffer portions 32 are the same, and the orthographic projections of the multiple second buffer portions 32 on the first substrate 10 coincide with the multiple first buffer portions 31; so that when either the first substrate 10 or the second substrate 20 is impacted, the impact force can be completely transferred from the first buffer portion 31 to the second buffer portion 32, or the second buffer portion 32 is transferred to the first buffer portion 31, and both the first buffer portion 31 and the second buffer portion 32 are deformed to absorb the impact force, so that the buffer composite plate absorbs more impact force, which is beneficial to improving the protective effect of the buffer composite plate.
[0049] Optionally, the second buffer portion 32 and the first buffer portion 31 are an integrated structure, so that when one of the first substrate 10 and the second substrate 20 is impacted, the impact force can be transmitted from the first buffer portion 31 to the second buffer portion 32, or the second buffer portion 32 is transmitted to the first buffer portion 31, and the first buffer portion 31 and the second buffer portion 32 are deformed together to absorb the impact force, so that the buffer composite plate absorbs more impact force, which is beneficial to improving the protective effect of the buffer composite plate.
[0050] In one implementation, see Figure 1 The inner wall of the first groove 11 has a plurality of first convex portions 12, and the plurality of first convex portions 12 are arranged at intervals, and the plurality of first convex portions 12 are located between two adjacent first buffer portions 31, so that the first convex portions 12 can limit the relative position of the two adjacent first buffer portions 31 and the first substrate 10, thereby preventing the plurality of first buffer portions 31 from shifting in a confined space, which is beneficial to ensuring the structural stability of the first buffer portions 31 in the buffer composite plate, and at the same time preventing the first buffer portions 31 from shifting or detaching between the first substrates 10 after the buffer composite plate is impacted, thereby affecting the protective effect of the buffer composite plate.
[0051] Alternatively, the first buffer portion 31 has a plurality of through holes 33, the number of the through holes 33 is greater than or equal to the number of the first protrusions 12, and the first protrusions 12 pass through the through holes 33, so that the first protrusions 12 can limit the relative position of the first buffer portion 31 and the first substrate 10, which is beneficial to ensure the structural stability of the first buffer portion 31 in the buffer composite plate, while ensuring the protective effect of the buffer composite plate.
[0052] Optionally, the inner wall of the second groove 21 has a plurality of second protrusions 22, and the second protrusions 22 correspond to the first protrusions 12 one by one. Similarly, the second protrusions 22 can limit the relative positions of the two adjacent second buffer portions 32 and the second substrate 20, which is beneficial to ensure the structural stability of the second buffer portion 32 in the buffer composite plate, and at the same time avoid the second buffer portion 32 from shifting or detaching between the second substrate 20 after the buffer composite plate is impacted, thereby affecting the protective effect of the buffer composite plate.
[0053] Optionally, the second protrusion 22 and the first protrusion 12 are detachably connected, which is beneficial to further improve the connection tightness and connection stability between the first substrate 10 and the second substrate 20, while avoiding the existence of a gap between the second protrusion 22 and the first protrusion 12, and the first buffer portion 31 and the second buffer portion 32 are shifted through the gap.
[0054] The utility model also provides a battery pack, see Figure 1 , including a battery tray 50 and the buffer composite plate in any one embodiment of the first aspect, the bottom of the battery tray 50 is connected to the first substrate 10 of the buffer composite plate.
[0055] Optionally, the battery tray 50 includes a fastener 41, and the buffer composite plate includes a mounting hole 40. There are multiple mounting holes 40, and there are multiple fasteners 41. The fasteners 41 correspond to the mounting holes 40 one by one. The multiple mounting holes 40 are arranged at intervals, and the mounting holes 40 are respectively located at the edge and the middle part of the buffer composite plate, which is conducive to improving the connection stability between the buffer composite plate and the battery tray 50, and at the same time, it is conducive to preventing the center of the buffer composite plate from sinking due to the weight of the buffer 30.
[0056] It can be understood that the battery pack in this embodiment has the buffer composite plate in the above-mentioned embodiment. Therefore, the battery pack in this embodiment has all the technical effects of the buffer composite plate in the above-mentioned embodiment. Since the technical effects of the buffer composite plate have been fully explained in the above-mentioned embodiment, they will not be repeated here.
[0057] The utility model also provides an electrical device, see Figure 1 , including an electrical appliance and a battery pack of the second aspect, the electrical appliance and the battery pack are electrically connected.
[0058] It can be understood that the electrical equipment in this embodiment has the battery pack in the above-mentioned embodiments. Therefore, the electrical equipment in this embodiment has all the technical effects of the battery pack in the above-mentioned embodiments. Since the technical effects of the battery pack have been fully explained in the above-mentioned embodiments, they will not be repeated here.
[0059] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0060] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.
Claims
1. A buffer composite board, It is characterized in that include: A first substrate having a first groove; A second substrate having a second groove, the first substrate and the second substrate are stacked and connected, and the first groove and the second groove jointly enclose a closed space; A plurality of buffer members are accommodated in the enclosed space, and the plurality of buffer members are arranged at intervals or crosswise.
2. The buffer composite board according to claim 1, It is characterized in that The buffer member includes a first buffer portion and a second buffer portion, the first buffer portion is connected to the first substrate, the first buffer portion and the second substrate are spaced apart from each other, the second buffer portion is connected to the second substrate, and the second buffer portion and the first substrate are spaced apart from each other.
3. The buffer composite board according to claim 2, It is characterized in that Multiple first buffer portions are arranged at intervals, and the maximum spacing distance between two adjacent first buffer portions is less than or equal to the maximum width of the first buffer portion, and / or multiple second buffer portions are arranged at intervals, and the maximum spacing distance between two adjacent second buffer portions is less than or equal to the maximum width of the second buffer portion.
4. The buffer composite board according to claim 2, It is characterized in that A plurality of the first buffer portions are cross-arranged to form a mesh structure, and / or a plurality of the second buffer portions are cross-arranged to form a mesh structure.
5. The buffer composite board according to claim 3 or 4, It is characterized in that Orthographic projections of the plurality of second buffer portions on the first substrate overlap with the plurality of first buffer portions.
6. The buffer composite board according to claim 3, It is characterized in that The orthographic projections of multiple second buffer portions on the first substrate and multiple first buffer portions are alternately arranged, the surface of the first buffer portion facing away from the first substrate is in contact with the surface of the second buffer portion facing away from the second substrate, or the first buffer portion is located between two adjacent second buffer portions.
7. The buffer composite board according to claim 2, It is characterized in that The second buffer portion and the first buffer portion are an integrated structure.
8. The buffer composite board according to claim 2, It is characterized in that The inner wall of the first groove has a plurality of first protrusions, the plurality of first protrusions are arranged at intervals, the plurality of first protrusions are located between two adjacent first buffer portions, or the first buffer portion has a plurality of through holes, the number of the through holes is greater than or equal to the number of the first protrusions, and the first protrusions pass through the through holes.
9. The buffer composite board according to claim 8, It is characterized in that The inner wall of the second groove has a plurality of second protrusions, the second protrusions correspond to the first protrusions one by one, and the second protrusions are detachably connected to the first protrusions.
10. A battery pack, It is characterized in that It comprises a battery tray and the buffer composite plate according to any one of claims 1 to 9, wherein the bottom of the battery tray is connected to the first substrate of the buffer composite plate.
11. An electrical device, It is characterized in that It comprises an electrical appliance and the battery pack according to claim 10, wherein the electrical appliance and the battery pack are electrically connected.