Battery structure and vehicle

Abstract

The utility model provides a battery structure and a vehicle. The battery structure comprises a box body, a battery module, a supporting assembly and a box cover, the battery module is arranged in the box body and comprises a plurality of battery packs which are sequentially arranged along a first direction; the supporting assembly comprises a first supporting plate and a plurality of second supporting plates, one second supporting plate is arranged between any two adjacent battery packs, and the second supporting plates are connected with the box body; the first supporting plate is arranged on the battery module and is detachably connected with the plurality of second supporting plates; the box cover is arranged on one side, back to the battery module, of the supporting assembly, and is connected with the box body and the first supporting plate respectively; at least part of the box cover forms a floor of the vehicle. The battery structure can prevent the box cover from deforming, and the safety performance of the battery structure is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage, in particular to a battery structure and a vehicle. BACKGROUND

[0002] With the research of "three-electricity" technology (motor, battery, and electric control) becoming mature, the industrialization degree is continuously improved. Among them, the battery as the core component of the electric vehicle, its performance and integration directly affect the endurance mileage, safety and space utilization of the whole vehicle. In order to improve the integration of electric vehicles, while increasing the space and comfort of the passenger compartment in the vehicle, the scheme of integrating the battery into the vehicle body (Cell to Body, referred to as CTB) has gradually become a new trend of industry development.

[0003] However, the current battery structure is limited in bearing capacity, and is easy to be deformed by stepping, which reduces the safety of the battery structure. CONTENT OF THE UTILITY MODEL

[0004] The battery structure and the vehicle provided by the embodiments of the present application can improve the bearing capacity of the battery structure and improve the safety of the battery structure.

[0005] In a first aspect, the embodiments of the present application provide a battery structure, comprising:

[0006] a box body;

[0007] a battery module, the battery module is arranged in the box body, and the battery module comprises a plurality of battery groups arranged in a first direction in sequence;

[0008] a support assembly, the support assembly comprises a first support plate and a plurality of second support plates, one second support plate is arranged between any adjacent battery groups, and the second support plate is connected with the box body; the first support plate is arranged on the battery module and is detachably connected with the plurality of second support plates;

[0009] a box cover, the box cover is arranged on the side of the support assembly away from the battery module, and is connected with the box body and the first support plate respectively; wherein at least part of the box cover constitutes a floor of a vehicle.

[0010] In a possible implementation, the first support plate and the plurality of second support plates are connected through insertion.

[0011] In a possible implementation, the second support plate has a boss extending towards the first support plate.

[0012] An insertion column is arranged on the boss; the first support plate is provided with an insertion hole matched with the insertion column.

[0013] In a possible implementation, the plug-in post comprises a first plug-in post and a second plug-in post connected to each other, and a diameter of the first plug-in post is greater than a diameter of the second plug-in post.

[0014] In a possible implementation, in a cross section perpendicular to the first support plate, a cross section shape of each second support plate is a hollow triangle or a hollow square.

[0015] Or, in a cross section perpendicular to the first support plate, a cross section shape of each second support plate is a solid square.

[0016] In a possible implementation, the first support plate is provided with a positioning hole penetrating through the first support plate in a thickness direction of the first support plate.

[0017] In a possible implementation, the battery structure further comprises at least one first partition beam and at least one second partition beam.

[0018] The at least one first partition beam extends in a first direction and is connected to the box body, and the at least one second partition beam extends in a second direction and is connected to the box body.

[0019] The at least one first partition beam and the at least one second partition beam are used to partition an inner cavity of the box body into a plurality of accommodation spaces, and each of the accommodation spaces is provided with one battery module.

[0020] The first support plate is further connected to the first partition beam and the second partition beam respectively.

[0021] The first direction and the second direction are perpendicular to each other.

[0022] In a possible implementation, at least one of the first partition beam and the second partition beam is provided with a support boss, and the support boss is provided with a bolt hole.

[0023] The first support plate is provided with a corresponding first connecting hole, and the box cover is provided with a corresponding second connecting hole.

[0024] After the bolt is arranged through the first connecting hole and the second connecting hole, the bolt is screwed into the bolt hole.

[0025] In a possible implementation, the first partition beam and the second partition beam are each provided with a plurality of support bosses arranged at intervals.

[0026] In a third aspect, an embodiment of the present application provides a vehicle comprising the battery structure of the first aspect.

[0027] At least part of the box cover body of the battery structure constitutes a floor of the vehicle.

[0028] The battery structure and the vehicle provided by the embodiments of the present application can support the box cover by the support assembly arranged between the battery modules and the box cover, and the second support plate of the support assembly is inserted between any adjacent battery groups. In this way, the box cover can be supported by the support assembly, and the risk of the box cover being stepped on is reduced.

[0029] In addition, the second support plate can not only play a supporting function, but also play an isolation function, so as to prevent the heat between adjacent battery groups from interfering with each other, help maintain the temperature balance between the battery groups, avoid local overheating or overcooling phenomenon, and thus improve the overall thermal management efficiency.

[0030] In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions and the beneficial effects brought by these technical features described above, other technical problems solved by the battery structure and the vehicle provided by the embodiments of the present application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0032] Figure 1 Part structure schematic diagram of the battery structure provided by the embodiments of the present application;

[0033] Figure 2 The exploded view of the part structure of the battery structure provided by the embodiments of the present application;

[0034] Figure 3 Part structure schematic diagram of the box cover of the battery structure provided by the embodiments of the present application;

[0035] Figure 4 Part structure schematic diagram of the box body of the battery structure provided by the embodiments of the present application;

[0036] Figure 5 Structure schematic diagram of the first support plate provided by the embodiments of the present application;

[0037] Figure 6 Structure schematic diagram of the second support plate provided by the embodiments of the present application;

[0038] Figure 7 For Figure 5 Enlarged schematic diagram of the A area in the middle.

[0039] Explanation of reference signs:

[0040] 1000: battery structure;

[0041] 100: box; 110: first partition beam; 120: second partition beam; 130: accommodation space; 140: support boss; 141: bolt hole;

[0042] 200: battery module; 210: battery pack;

[0043] 300: support assembly; 310: first support plate; 311: positioning hole; 312: first connecting hole; 320: second support plate; 330: insertion column; 331: first insertion column; 332: second insertion column; 340: insertion hole; 350: boss;

[0044] 400: box cover; 410: second connecting hole.

[0045] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0046] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to indicate the same or similar elements, unless otherwise described. The embodiments described in the following exemplary embodiments are not intended 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.

[0047] As described in the background section, the load bearing of the battery structure in the related art is limited, and is prone to deformation problems caused by being stepped on. The inventor has found that the cause of this problem is that the top surface of the battery structure constitutes at least part of the floor of the vehicle, and the top surface of the battery structure has poor load bearing capacity, and is therefore prone to deformation caused by being stepped on.

[0048] To solve the above technical problems, the battery structure and the vehicle provided by the embodiments of the present application are characterized in that the support assembly is arranged between the battery module and the box cover, and the second support plate of the support assembly is inserted between any adjacent battery packs. In this way, the support assembly can be used to support the box cover, thereby reducing the risk of the box cover being stepped on.

[0049] In addition, the second support plate can not only serve the support function, but also serve the blocking function, which can prevent heat between adjacent battery packs from interfering with each other, thereby helping to maintain the temperature balance between the battery packs and avoiding local overheating or overcooling, so as to improve the overall thermal management efficiency.

[0050] The technical solutions of the embodiments of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0051] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0052] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The embodiments of the present application provide a battery structure 1000, which can be applied to an energy storage component in an electrical equipment, for example, the battery structure 1000 can be applied to a vehicle to provide electrical energy for the vehicle to ensure normal operation of the vehicle.

[0053] The battery structure 1000 includes a box body 100, which is used as a main bearing component and a connecting component of the battery structure 1000, and is used to install the battery structure 1000 on a vehicle body frame of the vehicle.

[0054] Please continue to refer to the accompanying drawings Figure 2 The battery structure 1000 further includes a battery module 200, which is arranged in the box body 100. The battery module includes a plurality of battery groups 210, which can be arranged in sequence along a first direction. It should be understood that each battery group 210 includes a plurality of battery monomers arranged in an array.

[0055] Taking a rectangular battery monomer as an example, the first direction can be the width direction of the battery monomer, that is, the X direction in the accompanying drawings. Figure 2

[0056] It should be noted that the number of battery modules can be one or more. For example, the number of battery modules is more. In order to facilitate the limitation of the battery module, please refer to the accompanying drawings Figure 4 The battery structure 1000 provided in the embodiments of the present application further includes at least one first partition beam 110 and at least one second partition beam 120. That is, the at least one first partition beam 110 and the at least one second partition beam 120 are arranged in the box body 100.

[0057] ​The at least one first partition beam 110 extends along a first direction and is connected with the box body 100. The at least one second partition beam 120 extends along a second direction and is connected with the box body 100. The first direction and the second direction are perpendicular to each other, that is, the second direction is the length direction of the battery monomer, that is, the direction in which the battery monomer is arranged in the box body 100. Figure 2 The Y direction.

[0058] The at least one first partition beam 110 and the at least one second partition beam 120 are used to divide the inner cavity of the box body 100 into a plurality of accommodation spaces 130, and one battery module 200 is arranged in each accommodation space 130. In this way, a plurality of battery modules 200 can be reasonably arranged in a limited space, and mutual interference of the plurality of battery modules 200 can be effectively prevented, so as to improve the safety of the battery structure 1000.

[0059] It can be understood that the number of the at least one first partition beam 110 is a plurality. The plurality of first partition beams can be arranged at intervals along the second direction. Correspondingly, the number of the at least one second partition beam 120 is a plurality. The plurality of second partition beams can be arranged at intervals along the first direction.

[0060] The battery structure 1000 further comprises a support assembly 300, and the support assembly 300 comprises a first support plate 310 and a plurality of second support plates 320. It should be noted that the number of the second support plates 320 needs to be freely set according to the number of the battery groups 210. For example, if the number of the battery groups 210 is three, the number of the second support plates 320 is two.

[0061] Please refer to FIG. 2 and FIG. 3. Figure 5 Any adjacent battery groups 210 are provided with a second support plate 320, and the second support plate 320 is connected with the box body 100. That is, a second support plate 320 is inserted between any adjacent two battery groups 210. The second support plate 320 has the functions of supporting and blocking, can prevent heat between adjacent battery groups 210 from interfering with each other, helps to maintain the temperature balance between the battery groups 210, avoids local overheating or overcooling phenomenon, and thus improves the thermal management efficiency of the battery structure 1000.

[0062] It should be noted that the second support plate 320 towards the bottom of the box body 100 can be directly connected with the bottom wall of the box body 100, or can be indirectly connected with the bottom wall of the box body 100. For example, a liquid cooling plate (not shown in the figure) is arranged between the bottom wall of the box body 100 and the battery module 200, and the liquid cooling plate can cool the battery module 200 to improve the safety of the battery structure 1000. At this time, the second support plate 320 can be connected with the liquid cooling plate, so as to ensure the integrity of the liquid cooling plate.

[0063] Please refer to FIG. 2 and FIG. 3. Figure 2 and FIG. 4. Figure 6The first support plate 310 is arranged on the battery module 200 and detachably connected with the plurality of second support plates 320. In this way, the detachability of the support assembly 300 is improved.

[0064] It should be understood that the first support plate 310 and the plurality of second support plates 320 can be detachably connected by clamping or inserting.

[0065] Please refer to the accompanying drawings Figure 5 to the accompanying drawings Figure 7 As a possible implementation, the first support plate 310 and the plurality of second support plates 320 can be connected by inserting. For example, one of the first support plate 310 and the second support plate 320 is provided with an inserting column 330, and the other of the first support plate 310 and the second support plate 320 is provided with an inserting hole 340, and the inserting column 330 is inserted into the inserting hole 340 to realize detachable connection between the first support plate 310 and the plurality of second support plates 320.

[0066] The following examples are described in detail with the inserting column 330 arranged on the second support plate 320.

[0067] Please refer to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 For example, the second support plate 320 has a boss 350 extending towards the first support plate 310, and the inserting column 330 is arranged on the boss 350. At the same time, the first support plate 310 is provided with an inserting hole 340 matched with the inserting column 330.

[0068] Through the design of the boss 350, the inserting column 330 can be more accurately aligned with the inserting hole 340 on the first support plate 310, simplifying the assembly process, reducing installation errors, and making the installation of the first support plate 310 and the second support plate 320 more accurate.

[0069] The boss 350 can increase the gap between the second support plate 320 and the first support plate 310 to some extent, further reduce heat transfer, enhance the heat isolation effect between adjacent battery groups, and improve the heat management performance.

[0070] The diameter of the inserting column 330 can be equal everywhere, or other options can also be selected. For example, the inserting column 330 includes a first inserting column 331 and a second inserting column 332 connected with each other, and the diameter of the first inserting column 331 is greater than that of the second inserting column 332.

[0071] In this way, the larger diameter of the first inserting column 331 can be used to bear the main load, and the smaller diameter of the second inserting column 332 can be used for accurate positioning or auxiliary fixation, realizing functional partitioning and meeting different connection requirements.

[0072] It should be noted that when the first partition beam 110 and the second partition beam 120 are arranged in the box body 100, the first support plate 310 is also connected with the first partition beam 110 and the second partition beam 120, respectively. In order to achieve the stability of the first support plate 310, and further improve the anti-deformation ability of the support assembly 300.

[0073] The battery structure 1000 further comprises a box cover 400 arranged on one side of the support assembly 300 and connected with the box body 100 and the first support plate 310, respectively. At least part of the box cover 400 constitutes the floor of the vehicle.

[0074] In this way, the support assembly 300 can be used to support the box cover 400, thereby dispersing the load borne by the box cover 400 and reducing the risk of the box cover 400 being stepped on.

[0075] In some embodiments, in a cross section perpendicular to the first support plate 310, the cross-sectional shape of each second support plate 320 is a hollow triangle or a hollow square. In this way, each second support plate 320 is a hollow structure. In this way, the hollow structure design enables the second support plate 320 to have elastic deformation ability. When the box cover 400 bears the force formed by being stepped on, the second support plate 320 with the hollow structure design absorbs energy through elastic deformation, thereby reducing the risk of the box cover 400 being deformed by being stepped on, and further improving the protection ability of the battery module.

[0076] Alternatively, in a cross section perpendicular to the first support plate 310, the cross-sectional shape of each second support plate 320 is a solid square. In this way, the structural strength of each second support plate 320 can be improved, and further the structural strength of the entire support assembly 300 can be improved.

[0077] In some embodiments, the first support plate 310 is provided with a positioning hole 311 penetrating through the first support plate 310 along the thickness direction of the first support plate 310. The positioning hole 311 is arranged in the middle of the first support plate 310, and can also be arranged in the edge region of the first support plate 310.

[0078] In addition, the shape of the positioning hole 311 can be a regular shape or an irregular shape. For example, the shape of the positioning hole 311 is a triangle.

[0079] The positioning hole 311 can be used to facilitate positioning of the installation position of the first support plate 310 on the battery module 200, thereby improving the installation convenience of the first support plate 310. In addition, the positioning hole 311 can also expose part of the electrical structure of the battery module 200 that needs to be wired outwards, thereby facilitating electrical connection between the battery module 200 and the electrical equipment or monitoring equipment.

[0080] It should be noted that the number of positioning holes 311 is one, and can also be multiple. Exemplarily, the number of positioning holes 311 is four, of which two positioning holes 311 are arranged at the middle of the first support plate 310, and the other two positioning holes 311 are arranged at the edge region of the first support plate 310.

[0081] It can be understood that the first support plate 310 can be a single-layer sheet metal structure, or can be designed as a multi-layer sheet metal structure.

[0082] In order to realize the connection of the first support plate 310 with the box body 100 and the box cover 400, the partition beam is also improved in the embodiment.

[0083] Please refer to the accompanying drawings Figure 3 , the accompanying drawings Figure 4 and the accompanying drawings Figure 7 Exemplarily, at least one of the first partition beam 110 and the second partition beam 120 is provided with a support boss 140; the support boss 140 is provided with a bolt hole 141.

[0084] The first support plate 310 is provided with a corresponding first connecting hole 312, and the box cover 400 is provided with a corresponding second connecting hole 410. After the bolt is arranged in the first connecting hole 312 and the second connecting hole 410, the bolt is screwed into the bolt hole 141.

[0085] It should be noted that the number of bolt holes 141, first connecting holes 312 and second connecting holes 410 can be multiple. Exemplarily, the first connecting holes 312 are arranged at intervals in the circumferential direction of the first support plate 310.

[0086] In this way, the connection strength of the above three can be improved, and the structural strength of the entire battery structure 1000 can be improved.

[0087] It should be understood that one of the first partition beam 110 and the second partition beam 120 is provided with a support boss 140. There can also be other options. Exemplarily, the first partition beam 110 and the second partition beam 120 each have a plurality of support bosses 140 arranged at intervals.

[0088] In this way, the first support plate 310 and the battery module 200 can have a buffer space, which can absorb the force formed when the box cover 400 is stepped on, thereby improving the safety of the battery module 200.

[0089] The application also provides a vehicle comprising the battery structure 1000 described in any of the above embodiments; at least part of the box cover 400 of the battery structure 1000 constitutes the floor of the vehicle.

[0090] Since the vehicle includes the battery structure 1000 described in any of the above embodiments, the vehicle has the structure and advantages of the battery structure 1000, and thus the description of the embodiments is not repeated here.

[0091] The embodiments or implementations in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0092] It should be noted that the phrases "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments", etc. in the specification mean that the described embodiments can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0093] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery structure, characterized in that, include: Box; A battery module, wherein the battery module is disposed in the housing, and the battery module comprises a plurality of battery packs arranged sequentially along a first direction; A support assembly includes a first support plate and a plurality of second support plates, wherein a second support plate is disposed between any two adjacent battery packs and the second support plate is connected to the housing; the first support plate is disposed on the battery module and is detachably connected to the plurality of second support plates. A cover is disposed on one side of the back battery module of the support assembly and is connected to the housing and the first support plate respectively; wherein at least a portion of the cover constitutes the floor of the vehicle.

2. The battery structure according to claim 1, characterized in that, The first support plate is connected to several second support plates by plugging them together.

3. The battery structure according to claim 2, characterized in that, The second support plate has a boss extending toward the first support plate; The protrusion is provided with a plug-in post; the first support plate is provided with a plug-in hole that cooperates with the plug-in post.

4. The battery structure according to claim 3, characterized in that, The connector includes a first connector and a second connector that are connected to each other, wherein the diameter of the first connector is larger than the diameter of the second connector.

5. The battery structure according to any one of claims 1-4, characterized in that, With the cross-section perpendicular to the first support plate, the cross-sectional shape of each second support plate is a hollow triangle or a hollow square; Alternatively, the cross-sectional shape of each of the second support plates is a solid square, perpendicular to the first support plate.

6. The battery structure according to any one of claims 1-4, characterized in that, The first support plate is provided with a positioning hole, which penetrates the first support plate along the thickness direction.

7. The battery structure according to claim 6, characterized in that, The battery structure further includes at least one first partition beam and at least one second partition beam; At least one of the first partition beams extends along a first direction and is connected to the box body; at least one of the second partition beams extends along a second direction and is connected to the box body; At least one first partition beam and at least one second partition beam are used to divide the inner cavity of the housing into a plurality of accommodating spaces; each accommodating space is provided with a battery module; The first support plate is also connected to the first partition beam and the second partition beam respectively; The first direction and the second direction are perpendicular to each other.

8. The battery structure according to claim 7, characterized in that, At least one of the first partition beam and the second partition beam is provided with a support boss; the support boss is provided with bolt holes; The first support plate is provided with a corresponding first connecting hole, and the box cover is provided with a corresponding second connecting hole; After the bolt passes through the first connecting hole and the second connecting hole, it is screwed into the bolt hole.

9. The battery structure according to claim 8, characterized in that, Both the first and second partition beams have multiple spaced-apart support bosses.

10. A vehicle, characterized in that, Includes the battery structure described in any one of claims 1-9; At least a portion of the battery structure's cover body constitutes the vehicle's floor.

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